diff --git a/buscribe/.dockerignore b/buscribe/.dockerignore new file mode 100644 index 0000000..2bcdfd9 --- /dev/null +++ b/buscribe/.dockerignore @@ -0,0 +1 @@ +models/ diff --git a/buscribe/.gitignore b/buscribe/.gitignore new file mode 100644 index 0000000..13d1490 --- /dev/null +++ b/buscribe/.gitignore @@ -0,0 +1,131 @@ +# ---> Python +# Byte-compiled / optimized / DLL files +__pycache__/ +*.py[cod] +*$py.class + +# C extensions +*.so + +# Distribution / packaging +.Python +build/ +develop-eggs/ +dist/ +downloads/ +eggs/ +.eggs/ +lib/ +lib64/ +parts/ +sdist/ +var/ +wheels/ +pip-wheel-metadata/ +share/python-wheels/ +*.egg-info/ +.installed.cfg +*.egg +MANIFEST + +# PyInstaller +# Usually these files are written by a python script from a template +# before PyInstaller builds the exe, so as to inject date/other infos into it. +*.manifest +*.spec + +# Installer logs +pip-log.txt +pip-delete-this-directory.txt + +# Unit test / coverage reports +htmlcov/ +.tox/ +.nox/ +.coverage +.coverage.* +.cache +nosetests.xml +coverage.xml +*.cover +*.py,cover +.hypothesis/ +.pytest_cache/ + +# Translations +*.mo +*.pot + +# Django stuff: +*.log +local_settings.py +db.sqlite3 +db.sqlite3-journal + +# Flask stuff: +instance/ +.webassets-cache + +# Scrapy stuff: +.scrapy + +# Sphinx documentation +docs/_build/ + +# PyBuilder +target/ + +# Jupyter Notebook +.ipynb_checkpoints + +# IPython +profile_default/ +ipython_config.py + +# pyenv +.python-version + +# pipenv +# According to pypa/pipenv#598, it is recommended to include Pipfile.lock in version control. +# However, in case of collaboration, if having platform-specific dependencies or dependencies +# having no cross-platform support, pipenv may install dependencies that don't work, or not +# install all needed dependencies. +#Pipfile.lock + +# PEP 582; used by e.g. github.com/David-OConnor/pyflow +__pypackages__/ + +# Celery stuff +celerybeat-schedule +celerybeat.pid + +# SageMath parsed files +*.sage.py + +# Environments +.env +.venv +env/ +venv/ +ENV/ +env.bak/ +venv.bak/ + +# Spyder project settings +.spyderproject +.spyproject + +# Rope project settings +.ropeproject + +# mkdocs documentation +/site + +# mypy +.mypy_cache/ +.dmypy.json +dmypy.json + +# Pyre type checker +.pyre/ + diff --git a/buscribe/LICENSE b/buscribe/LICENSE new file mode 100644 index 0000000..e37e32e --- /dev/null +++ b/buscribe/LICENSE @@ -0,0 +1,613 @@ +GNU AFFERO GENERAL PUBLIC LICENSE + +Version 3, 19 November 2007 + +Copyright (C) 2007 Free Software Foundation, Inc. + +Everyone is permitted to copy and distribute verbatim copies of this license +document, but changing it is not allowed. + +Preamble + +The GNU Affero General Public License is a free, copyleft license for software +and other kinds of works, specifically designed to ensure cooperation with +the community in the case of network server software. + +The licenses for most software and other practical works are designed to take +away your freedom to share and change the works. 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It is safest to attach +them to the start of each source file to most effectively state the exclusion +of warranty; and each file should have at least the "copyright" line and a +pointer to where the full notice is found. + + + +Copyright (C) + +This program is free software: you can redistribute it and/or modify it under +the terms of the GNU Affero General Public License as published by the Free +Software Foundation, either version 3 of the License, or (at your option) +any later version. + +This program is distributed in the hope that it will be useful, but WITHOUT +ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS +FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more +details. + +You should have received a copy of the GNU Affero General Public License along +with this program. If not, see . + +Also add information on how to contact you by electronic and paper mail. + +If your software can interact with users remotely through a computer network, +you should also make sure that it provides a way for users to get its source. +For example, if your program is a web application, its interface could display +a "Source" link that leads users to an archive of the code. There are many +ways you could offer source, and different solutions will be better for different +programs; see section 13 for the specific requirements. + +You should also get your employer (if you work as a programmer) or school, +if any, to sign a "copyright disclaimer" for the program, if necessary. For +more information on this, and how to apply and follow the GNU AGPL, see . diff --git a/buscribe/README.md b/buscribe/README.md new file mode 100644 index 0000000..d0add29 --- /dev/null +++ b/buscribe/README.md @@ -0,0 +1,3 @@ +# buscribe + +Transcription for DB \ No newline at end of file diff --git a/buscribe/build.sh b/buscribe/build.sh new file mode 100644 index 0000000..fd01d6c --- /dev/null +++ b/buscribe/build.sh @@ -0,0 +1,15 @@ +#!/bin/bash + +VERSION=0.0.0 + +#bash fetch_models.sh + +docker build -f buscribe/Dockerfile -t buscribe:$VERSION . +docker build -f buscribe-api/Dockerfile -t buscribe-api:$VERSION . +docker build -f professor-api/Dockerfile -t professor-api:$VERSION . + +docker build -f docker-less/Dockerfile -t lessc . +docker run --rm -v "$(pwd)"/buscribe-web:/buscribe-web lessc /buscribe-web/style.less > buscribe-web/style.css +docker run --rm -v "$(pwd)"/professor:/professor lessc /professor/style.less > professor/style.css + +docker build -f nginx/Dockerfile -t buscribe-web:$VERSION . diff --git a/buscribe/buscribe-api/Dockerfile b/buscribe/buscribe-api/Dockerfile new file mode 100644 index 0000000..ecf629f --- /dev/null +++ b/buscribe/buscribe-api/Dockerfile @@ -0,0 +1,19 @@ +FROM alpine:3.14 +# dependencies needed for compiling c extensions +# also busybox-extras for telnet for easier use of backdoor +RUN apk --update add py3-pip g++ python3-dev libffi-dev musl-dev postgresql-dev file make busybox-extras + +# Install gevent so that we don't need to re-install it when common changes +RUN pip install gevent + +# Install common lib first as it changes less +COPY common /tmp/common +RUN pip install /tmp/common && rm -r /tmp/common + +# Install actual application +RUN apk add postgresql-dev postgresql-libs +COPY buscribe-api /tmp/buscribe-api +RUN pip install /tmp/buscribe-api && cp -r /tmp/buscribe-api/templates /templates \ + && rm -r /tmp/buscribe-api + +ENTRYPOINT ["python3", "-m", "buscribeapi", "--base-dir", "/mnt"] diff --git a/buscribe/buscribe-api/buscribeapi/__init__.py b/buscribe/buscribe-api/buscribeapi/__init__.py new file mode 100644 index 0000000..e69de29 diff --git a/buscribe/buscribe-api/buscribeapi/__main__.py b/buscribe/buscribe-api/buscribeapi/__main__.py new file mode 100644 index 0000000..7324741 --- /dev/null +++ b/buscribe/buscribe-api/buscribeapi/__main__.py @@ -0,0 +1,15 @@ +from gevent import monkey +monkey.patch_all() + +import logging +import os + +import argh + +from buscribeapi.main import main + +LOG_FORMAT = "[%(asctime)s] %(levelname)8s %(name)s(%(module)s:%(lineno)d): %(message)s" + +level = os.environ.get('WUBLOADER_LOG_LEVEL', 'INFO').upper() +logging.basicConfig(level=level, format=LOG_FORMAT) +argh.dispatch_command(main) diff --git a/buscribe/buscribe-api/buscribeapi/buscribeapi.py b/buscribe/buscribe-api/buscribeapi/buscribeapi.py new file mode 100644 index 0000000..21991b5 --- /dev/null +++ b/buscribe/buscribe-api/buscribeapi/buscribeapi.py @@ -0,0 +1,233 @@ +from datetime import timedelta + +import common +import flask as flask +from common import dateutil, database, format_bustime, dt_to_bustime, bustime_to_dt, parse_bustime +from dateutil.parser import ParserError +from flask import request, jsonify, Response, render_template + +app = flask.Flask('buscribe') + + +@app.template_filter() +def convert_vtt_timedelta(delta: timedelta): + """Converts a timedelta to a VTT compatible format.""" + return f'{delta.days * 24 + delta.seconds // 3600:02}:{(delta.seconds % 3600) // 60:02}:{delta.seconds % 60:02}.{delta.microseconds // 1000:03}' + + +@app.template_filter() +def create_seconds_timedelta(seconds): + """Converts a float of seconds to a timedelta.""" + return timedelta(seconds=seconds) + + +@app.route('/buscribe/vtt') +def get_vtt(): + """Returns WebVTT subtitle file for the period between start_time and end_time. + + Times are relative to --bustime-start. + + TODO: Figure out proper offsets.""" + try: + start_time_string = request.args.get('start_time') + start_time = dateutil.parse(start_time_string) + except ParserError: + return "Invalid start time!", 400 + except KeyError: + return "Missing start time!", 400 + + try: + end_time_string = request.args['end_time'] + end_time = dateutil.parse(end_time_string) + except ParserError: + return "Invalid end time!", 400 + except KeyError: + return "Missing end time!", 400 + + db_conn = app.db_manager.get_conn() + + segments = common.get_best_segments(app.segments_dir, + start_time, + end_time) + segments_start_time = segments[0].start + + results = fetch_lines(db_conn, start_time, end_time) + + return Response( + render_template("busubs.jinja", results=results, start_time=segments_start_time, + duration_extend=timedelta(seconds=0.3)), + mimetype="text/vtt" + ) + + +@app.route('/buscribe/json') +def get_json(): + """Searches the line database for *query*, with optional start_time and end_time boundaries. + + Search is done using PostgreSQL websearch_to_tsquery() + (https://www.postgresql.org/docs/13/functions-textsearch.html)""" + + start_time_string = request.args.get('start_time') + bus_start_time_string = request.args.get('bus_start_time') + if start_time_string is not None: + try: + start_time = dateutil.parse(start_time_string) + except ParserError: + return "Invalid start time!", 400 + elif bus_start_time_string is not None: + try: + start_time = bustime_to_dt(app.bustime_start, parse_bustime(bus_start_time_string)) + except ValueError: + return "Invalid bus end time!", 400 + else: + start_time = None + + end_time_string = request.args.get('end_time') + bus_end_time_string = request.args.get('bus_end_time') + if end_time_string is not None: + try: + end_time = dateutil.parse(end_time_string) + except ParserError: + return "Invalid end time!", 400 + elif bus_end_time_string is not None: + try: + end_time = bustime_to_dt(app.bustime_start, parse_bustime(bus_end_time_string)) + except ValueError: + return "Invalid bus end time!", 400 + else: + end_time = None + + # I think websearch_to_tsquery() sanitizes its own input. + query = request.args.get('query', default=None) + + limit = request.args.get('limit', default=None, type=int) + offset = request.args.get('offset', default=None, type=int) + + db_conn = app.db_manager.get_conn() + + results = fetch_lines(db_conn, start_time, end_time, query, limit, offset) + + return jsonify([{"id": row.id, + "start_time": row.start_time.isoformat(), + "start_bus_time": format_bustime(dt_to_bustime(app.bustime_start, row.start_time), "second"), + "end_time": row.end_time.isoformat(), + "end_bus_time": format_bustime(dt_to_bustime(app.bustime_start, row.end_time), "second"), + "verifier": row.verifier, + "speakers": row.names, + "text": row.highlighted_text if row.highlighted_text is not None else ""} for row in results]) + + +def fetch_lines(db_conn, start_time, end_time, ts_query=None, limit=None, offset=None): + query = f""" + WITH q AS ( + SELECT convert_query(%(text_query)s) +), + time_window AS ( + SELECT id + FROM buscribe_transcriptions + WHERE start_time >= %(start_time)s + AND end_time <= %(end_time)s + ), + relevant_lines AS ( + ( + SELECT id + FROM buscribe_transcriptions + WHERE id IN (SELECT id FROM time_window) + {"AND to_tsvector('english', transcription_line) @@ (SELECT * FROM q)" if ts_query else ""} + ) + UNION + ( + SELECT line + FROM buscribe_verified_lines + WHERE line IN (SELECT id FROM time_window) + {"AND to_tsvector('english', verified_line) @@ (SELECT * FROM q)" if ts_query else ""} + ) + UNION + ( + SELECT line + FROM buscribe_line_speakers + INNER JOIN buscribe_speakers ON buscribe_line_speakers.speaker = buscribe_speakers.id + WHERE line IN (SELECT id FROM time_window) + {"AND to_tsvector(name) @@ (SELECT * FROM q)" if ts_query else ""} + ) + UNION + ( + SELECT line + FROM buscribe_line_inferred_speakers + INNER JOIN buscribe_speakers ON buscribe_line_inferred_speakers.speaker = buscribe_speakers.id + WHERE line IN (SELECT id FROM time_window) + {"AND to_tsvector(name) @@ (SELECT * FROM q)" if ts_query else ""} + ) + ) + ( + (SELECT id, + start_time, + end_time, + null AS verifier, + names, + transcription_line, + ts_rank_cd(coalesce(to_tsvector('english', transcription_line), ''::tsvector) || + coalesce(to_tsvector(array_to_string(names, ' ')), ''::tsvector), (SELECT * FROM q)) AS rank, + ts_headline(transcription_line, + (SELECT * FROM q), 'StartSel='''', StopSel=') AS highlighted_text, + transcription_json + FROM buscribe_transcriptions + LEFT OUTER JOIN (SELECT line, array_agg(name) AS names + FROM buscribe_line_inferred_speakers + INNER JOIN buscribe_speakers + ON buscribe_line_inferred_speakers.speaker = buscribe_speakers.id + GROUP BY line) AS inferred_speakers ON id = inferred_speakers.line + WHERE id IN (SELECT id FROM relevant_lines) + ) + UNION + ( + SELECT buscribe_transcriptions.id AS id, + start_time, + end_time, + cverifier AS verifier, + names, + coalesce(verifications.verified_line, + buscribe_transcriptions.transcription_line) AS transcription_line, + ts_rank_cd(coalesce( + setweight(to_tsvector('english', verified_line), 'C'), + to_tsvector('english', buscribe_transcriptions.transcription_line), + ''::tsvector) || + coalesce(setweight(to_tsvector(array_to_string(names, ' ')), 'C'), ''::tsvector), + (SELECT * FROM q)) AS rank, + ts_headline(coalesce(verifications.verified_line, buscribe_transcriptions.transcription_line), + (SELECT * FROM q), 'StartSel='''', StopSel=') AS highlighted_text, + null AS transcription_json + FROM buscribe_transcriptions + INNER JOIN ( + SELECT *, + coalesce(relevant_verified.line, relevant_speakers.line) AS cline, + coalesce(relevant_verified.verifier, relevant_speakers.verifier) AS cverifier + FROM (SELECT * + FROM buscribe_verified_lines + WHERE line IN (SELECT id FROM relevant_lines)) AS relevant_verified + FULL OUTER JOIN + (SELECT line, verifier, array_agg(name) AS names + FROM buscribe_line_speakers + INNER JOIN buscribe_speakers + ON buscribe_line_speakers.speaker = buscribe_speakers.id + WHERE line IN (SELECT id FROM relevant_lines) + GROUP BY line, verifier) AS relevant_speakers + ON relevant_verified.line = relevant_speakers.line AND + relevant_speakers.verifier = relevant_verified.verifier) AS verifications + ON id = verifications.cline + ) + ) + ORDER BY + {"rank DESC," if ts_query is not None else ""} + start_time + {"OFFSET %(offset)s" if offset is not None else ""} + {"LIMIT %(limit)s" if limit is not None else ""}; + """ + + return database.query(db_conn, query, + start_time=start_time if start_time is not None else '-infinity', + end_time=end_time if end_time is not None else 'infinity', + text_query=ts_query, + limit=limit, + offset=offset + ) diff --git a/buscribe/buscribe-api/buscribeapi/main.py b/buscribe/buscribe-api/buscribeapi/main.py new file mode 100644 index 0000000..f653763 --- /dev/null +++ b/buscribe/buscribe-api/buscribeapi/main.py @@ -0,0 +1,86 @@ +import logging +import os +from time import sleep + +import argh +import gevent.event +from common import dateutil +from common.database import DBManager +from dateutil.parser import ParserError +from gevent import signal +from gevent.pywsgi import WSGIServer + +from buscribeapi.buscribeapi import app + + +def cors(app): + """WSGI middleware that sets CORS headers""" + HEADERS = [ + ("Access-Control-Allow-Credentials", "false"), + ("Access-Control-Allow-Headers", "*"), + ("Access-Control-Allow-Methods", "GET,HEAD"), + ("Access-Control-Allow-Origin", "*"), + ("Access-Control-Max-Age", "86400"), + ] + + def handle(environ, start_response): + def _start_response(status, headers, exc_info=None): + headers += HEADERS + return start_response(status, headers, exc_info) + + return app(environ, _start_response) + + return handle + + +def servelet(server): + logging.info('Starting WSGI server.') + server.serve_forever() + +@argh.arg('channel', + help="Twitch channel to transcribe.") +@argh.arg('--host', + help='Address or socket server will listen to. Default is 0.0.0.0 (everything on the local machine).') +@argh.arg('--port', + help='Port server will listen on. Default is 8004.') +@argh.arg('--database', + help='Postgres connection string, which is either a space-separated list of key=value pairs, or a URI like: ' + 'postgresql://USER:PASSWORD@HOST/DBNAME?KEY=VALUE') +@argh.arg('--bustime-start', + help='The start time in UTC for the event, for UTC-Bustime conversion') +@argh.arg('--base-dir', + help='Directory from which segments will be grabbed. Default is current working directory.') +def main(channel, database="", host='0.0.0.0', port=8010, bustime_start=None, base_dir=None): + if bustime_start is None: + logging.error("Missing --bustime-start!") + exit(1) + + server = WSGIServer((host, port), cors(app)) + + try: + app.bustime_start = dateutil.parse(bustime_start) + except ParserError: + logging.error("Invalid --bustime-start!") + exit(1) + + app.segments_dir = os.path.join(base_dir, channel, "source") + + app.db_manager = DBManager(dsn=database) + + stopping = gevent.event.Event() + + def stop(): + logging.info("Shutting down") + stopping.set() + + gevent.signal_handler(signal.SIGTERM, stop) + + serve = gevent.spawn(servelet, server) + + # Wait for either the stop signal or the server to oops out. + gevent.wait([serve, stopping], count=1) + + server.stop() + serve.get() # Wait for server to shut down and/or re-raise if serve_forever() errored + + logging.info("Gracefully shut down") diff --git a/buscribe/buscribe-api/setup.py b/buscribe/buscribe-api/setup.py new file mode 100644 index 0000000..06406e4 --- /dev/null +++ b/buscribe/buscribe-api/setup.py @@ -0,0 +1,16 @@ +from setuptools import setup, find_packages + +setup( + name = "wubloader-buscribe-api", + version = "0.0.0", + packages = find_packages(), + install_requires = [ + "argh", + "psycopg2", + "gevent", + "psycogreen", + "wubloader-common", + "python-dateutil", + "flask" + ], +) diff --git a/buscribe/buscribe-api/templates/busub.jinja b/buscribe/buscribe-api/templates/busub.jinja new file mode 100644 index 0000000..e585d8b --- /dev/null +++ b/buscribe/buscribe-api/templates/busub.jinja @@ -0,0 +1,10 @@ +{{ (row.start_time - start_time)|convert_vtt_timedelta }} --> {{ (row.end_time - start_time + duration_extend)|convert_vtt_timedelta }} + + {%- if row.transcription_json is none -%} + {{ row.transcription_line }} + {%- else -%} + {%- set line_start_time = row.transcription_json["result"][0]["start"] -%} + {%- for word in row.transcription_json["result"] -%} + <{{ ((row.start_time - start_time) + (word["start"] - line_start_time)|create_seconds_timedelta)|convert_vtt_timedelta }}>{{ word["word"] + " " }} + {%- endfor -%} + {%- endif -%} \ No newline at end of file diff --git a/buscribe/buscribe-api/templates/busubs.jinja b/buscribe/buscribe-api/templates/busubs.jinja new file mode 100644 index 0000000..0d4a47a --- /dev/null +++ b/buscribe/buscribe-api/templates/busubs.jinja @@ -0,0 +1,7 @@ +WEBVTT + +{% for row in results %} + {%- if row.transcription_line is not none %} + {%- include "busub.jinja" %} + {%- endif %} +{% endfor %} \ No newline at end of file diff --git a/buscribe/buscribe-web/constants.less b/buscribe/buscribe-web/constants.less new file mode 100644 index 0000000..ff0edd1 --- /dev/null +++ b/buscribe/buscribe-web/constants.less @@ -0,0 +1,2 @@ +@sans-serif: Tahoma, sans-serif; +@serif: Georgia, Garamond, serif; \ No newline at end of file diff --git a/buscribe/buscribe-web/form.less b/buscribe/buscribe-web/form.less new file mode 100644 index 0000000..c2ed8da --- /dev/null +++ b/buscribe/buscribe-web/form.less @@ -0,0 +1,60 @@ +@import "constants"; + +#search_tools { + display: flex; + flex-direction: column; + + margin-bottom: 1em; + + div { + margin: 0; + padding: 0; + display: flex; + } + + label { + display: inline-block; + font-family: @sans-serif; + width: 5em; + text-align: right; + padding: 0.2em; + } + + #text_search_line { + display: flex; + flex-direction: row; + + margin-bottom: 0.2em; + + #search_text { + flex-grow: 1; + min-width: 10em; + } + } + + #time_search_line { + display: flex; + flex-direction: row; + flex-wrap: wrap; + + div { + align-items: center; + } + + input[type=datetime-local], input[type=text] { + width: 13em; + } + + input[type=text] { + text-align: right; + } + + #search_button { + margin-left: auto; + } + } + + button { + padding: 0.25em; + } +} \ No newline at end of file diff --git a/buscribe/buscribe-web/index.html b/buscribe/buscribe-web/index.html new file mode 100644 index 0000000..bc2b67d --- /dev/null +++ b/buscribe/buscribe-web/index.html @@ -0,0 +1,48 @@ + + + + + Buscribe -- Search + + + + + +
+
+ +
+
+
+
+
+ +
+
+ + + +
+ + +
+
+ +
+ +
+ +
+
+

Start time and end time specify the time range.

+

Text search supports quotes ("word1 and word2") to search phrases with those words in order. The word "or" works + as an or operator. Dash "-" works as a not operator.

+
+
+ + + \ No newline at end of file diff --git a/buscribe/buscribe-web/line.less b/buscribe/buscribe-web/line.less new file mode 100644 index 0000000..3ec1cad --- /dev/null +++ b/buscribe/buscribe-web/line.less @@ -0,0 +1,81 @@ +@import "constants"; + +.line { + display: grid; + + grid-template-columns: [times] max-content [text] auto; + grid-template-rows: minmax(1.36em, max-content) min-content; + align-items: start; + + margin-bottom: 0.1em; + padding: 0.3em; + max-width: 50em; + + background: #606060; + + .line_start_time { + color: lightgray; + font-family: monospace; + font-size: smaller; + + margin-top: 1.5ex; + + grid-column: times; + align-self: start; + } + + .line_start_bus_time { + font-family: @sans-serif; + + text-align: right; + + grid-column: times; + + padding: 0.2em; + align-self: start; + } + + .line_text { + font-family: @serif; + + padding: 0.2em; + + margin-left: 0.3em; + + grid-column: text; + //grid-row: span 2; + span.highlight { + font-weight: bold; + color: powderblue; + } + } + + .line_speakers { + font-family: @sans-serif; + font-size: small; + + padding: 0.2em; + margin-left: 0.3em; + margin-top: 0.2em; + + grid-column: text; + } + + .line_links { + text-align: right; + grid-column: times; + + a { + margin-left: 0.5em; + + font-size: small; + font-family: @sans-serif; + color: lightgray; + text-align: right; + } + } +} + +.line.verified { + background: #575757; +} \ No newline at end of file diff --git a/buscribe/buscribe-web/script.js b/buscribe/buscribe-web/script.js new file mode 100644 index 0000000..6f61206 --- /dev/null +++ b/buscribe/buscribe-web/script.js @@ -0,0 +1,102 @@ +function onSiteLoad(e) { + + document.getElementById("search_tools").addEventListener("keydown", + function (event) { + if (event.key === 'Enter') doSearch() + }); + + doSearch(); +} + +function query(text, start_time, end_time) { + let query_string = "" + + const time_type = document.getElementById("UTC_time_radio").checked ? "" : "bus_"; + + if (start_time !== "") { + query_string += `${time_type}start_time=${start_time}`; + } + if (end_time !== "") { + query_string += `&${time_type}end_time=${end_time}`; + } + if (text !== "") { + query_string += `&query=${text}` + } + + query_string += "&limit=30"; + + const channel = document.getElementById("channel_select").value; + + fetch(`https://wubloader.raptorpond.com/buscribe/${channel}/json?${query_string}`) + .then(response => response.json()) + .then(fillResults) + +} + +function doSearch() { + query( + document.getElementById("search_text").value, + document.getElementById("start_time").value, + document.getElementById("end_time").value + ) +} + +function fillResults(results) { + const results_element = document.getElementById("results") + results_element.innerHTML = "" + + const channel = document.getElementById("channel_select").value; + + for (const line of results) { + const line_div = document.createElement("div"); + + line_div.classList.add("line"); + if (line.verifier) { + line_div.classList.add("verified"); + } + + + line_div.innerHTML = ` +
${line.start_bus_time}
+
${line.speakers == null ? "" : line.speakers.join(", ")}
+
${line.start_time}
+
${line.text}
+
+ Edit + Show context +
+ `; + + + results_element.append(line_div) + } +} + +function switchToUTC() { + document.getElementById("start_time").type = "datetime-local"; + document.getElementById("end_time").type = "datetime-local"; +} + +function switchToBus() { + document.getElementById("start_time").type = "text"; + document.getElementById("end_time").type = "text"; +} + +function showContext(time) { + + let start_time = new Date(time + "Z"); + start_time.setMinutes(start_time.getMinutes() - 3); + let start_time_string = start_time.toISOString(); + start_time_string = start_time_string.substring(0, start_time_string.length - 1) + + let end_time = new Date(time + "Z"); + end_time.setMinutes(end_time.getMinutes() + 3); + let end_time_string = end_time.toISOString(); + end_time_string = end_time_string.substring(0, end_time_string.length - 1) + + document.getElementById("start_time").value = start_time_string; + document.getElementById("end_time").value = end_time_string; + document.getElementById("search_text").value = ""; + + doSearch(); +} \ No newline at end of file diff --git a/buscribe/buscribe-web/style.less b/buscribe/buscribe-web/style.less new file mode 100644 index 0000000..2ded3df --- /dev/null +++ b/buscribe/buscribe-web/style.less @@ -0,0 +1,21 @@ +body { + color: aliceblue; + background: dimgray; + + max-width: 900px; +} + +@import "form"; +@import "line"; + +#help_box { + display: none; + position: fixed; + top: 1em; + right: 1em; + width: 20em; + float: right; + background: #fff; + padding: 1em; + color: #000; +} \ No newline at end of file diff --git a/buscribe/buscribe/Dockerfile b/buscribe/buscribe/Dockerfile new file mode 100644 index 0000000..5469d36 --- /dev/null +++ b/buscribe/buscribe/Dockerfile @@ -0,0 +1,15 @@ +FROM debian:11 + +RUN apt update &&\ + apt install -y python3 libpq-dev python3-pip curl unzip ffmpeg + +COPY common /tmp/common +RUN pip install /tmp/common && rm -r /tmp/common + +COPY buscribe /tmp/buscribe +RUN pip install /tmp/buscribe && rm -r /tmp/buscribe && \ + mkdir /usr/share/buscribe && cd /usr/share/buscribe + +COPY models/extracted /usr/share/buscribe + +ENTRYPOINT ["python3", "-m", "buscribe", "--base-dir", "/mnt"] diff --git a/buscribe/buscribe/Dockerfile.dockerignore b/buscribe/buscribe/Dockerfile.dockerignore new file mode 100644 index 0000000..8cef4e6 --- /dev/null +++ b/buscribe/buscribe/Dockerfile.dockerignore @@ -0,0 +1 @@ +!models/ diff --git a/buscribe/buscribe/buscribe/__init__.py b/buscribe/buscribe/buscribe/__init__.py new file mode 100644 index 0000000..e69de29 diff --git a/buscribe/buscribe/buscribe/__main__.py b/buscribe/buscribe/buscribe/__main__.py new file mode 100644 index 0000000..f62ff0d --- /dev/null +++ b/buscribe/buscribe/buscribe/__main__.py @@ -0,0 +1,12 @@ +import logging +import os + +import argh + +from buscribe.main import main + +LOG_FORMAT = "[%(asctime)s] %(levelname)8s %(name)s(%(module)s:%(lineno)d): %(message)s" + +level = os.environ.get('WUBLOADER_LOG_LEVEL', 'INFO').upper() +logging.basicConfig(level=level, format=LOG_FORMAT) +argh.dispatch_command(main) diff --git a/buscribe/buscribe/buscribe/buscribe.py b/buscribe/buscribe/buscribe/buscribe.py new file mode 100644 index 0000000..c42f48b --- /dev/null +++ b/buscribe/buscribe/buscribe/buscribe.py @@ -0,0 +1,103 @@ +import json +import logging +import subprocess +from datetime import timedelta, datetime + +from gevent.event import Event +from psycopg2._psycopg import cursor + +from buscribe.recognizer import BuscribeRecognizer + + +class HitMissingSegment(Exception): + pass + + +def transcribe_segments(segments: list, sample_rate: int, recognizer: BuscribeRecognizer, start_of_transcript: datetime, + db_cursor: cursor, stopping: Event): + """Starts transcribing from a list of segments. + + Only starts committing new lines to the database after reaching start_of_transcript. + + The recognizer must be initialized to sample_rate and have start time set. + + Returns the end time of the last transcribed line.""" + + segments_end_time = segments[0].start + + for segment in segments: + + if segment is None: + return segments_end_time + + segments_end_time += segment.duration + + process = subprocess.Popen(['ffmpeg', + '-loglevel', 'quiet', + '-i', segment.path, + '-ar', str(sample_rate), + '-ac', '1', # TODO: Check for advanced downmixing + '-f', 's16le', '-'], + stdout=subprocess.PIPE) + while True: + data = process.stdout.read(16000) + if len(data) == 0: + break + if recognizer.accept_waveform(data): + result_json = json.loads(recognizer.result()) + logging.debug(json.dumps(result_json, indent=2)) + + if result_json["text"] == "": + continue + + line_start_time = recognizer.segments_start_time + timedelta(seconds=result_json["result"][0]["start"]) + line_end_time = recognizer.segments_start_time + timedelta(seconds=result_json["result"][-1]["end"]) + + if line_start_time > start_of_transcript: + write_line(result_json, line_start_time, line_end_time, db_cursor) + + if stopping.is_set(): + return segments_end_time + + return segments_end_time + + +def write_line(line_json: dict, line_start_time: datetime, line_end_time: datetime, db_cursor): + """Commits line to the database""" + db_cursor.execute( + "INSERT INTO buscribe_transcriptions(" + "start_time, " + "end_time, " + "transcription_line, " + "line_speaker, " + "transcription_json) VALUES (%s, %s ,%s, %s, %s)", + (line_start_time, + line_end_time, + line_json["text"], + line_json["spk"] if "spk" in line_json else None, + json.dumps(line_json) + ) + ) + + +def get_end_of_transcript(db_cursor): + """Grab the end timestamp of the current transcript. + + If there is no existing transcript returns default; used for cold starts.""" + db_cursor.execute("SELECT end_time FROM buscribe_transcriptions ORDER BY end_time DESC LIMIT 1") + end_of_transcript_row = db_cursor.fetchone() + + return end_of_transcript_row.end_time if end_of_transcript_row is not None else None + + +def finish_off_recognizer(recognizer: BuscribeRecognizer, db_cursor): + """Flush the recognizer, commit the final line to the database and reset it.""" + final_result_json = json.loads(recognizer.final_result()) # Flush the tubes + + if "result" in final_result_json: + line_start_time = recognizer.segments_start_time + timedelta(seconds=final_result_json["result"][0]["start"]) + line_end_time = recognizer.segments_start_time + timedelta(seconds=final_result_json["result"][-1]["end"]) + + write_line(final_result_json, line_start_time, line_end_time, db_cursor) + + recognizer.reset() diff --git a/buscribe/buscribe/buscribe/main.py b/buscribe/buscribe/buscribe/main.py new file mode 100644 index 0000000..6b7b68a --- /dev/null +++ b/buscribe/buscribe/buscribe/main.py @@ -0,0 +1,132 @@ +import logging +import os +from datetime import timedelta, datetime, timezone +from time import sleep + +import argh +import common +import gevent +from common import dateutil +from common.database import DBManager +from gevent import signal + +from buscribe.buscribe import get_end_of_transcript, transcribe_segments, finish_off_recognizer +from buscribe.recognizer import BuscribeRecognizer + + +@argh.arg('channel', + help="Twitch channel to transcribe.") +@argh.arg('--database', + help='Postgres conection string for database to write transcribed lines to. Either a space-separated list of ' + 'key=value pairs, or a URI like: postgresql://USER:PASSWORD@HOST/DBNAME?KEY=VALUE .') +@argh.arg('--model', + help='Path to STT model files. Defaults to /usr/share/buscribe/vosk-model-en-us-0.21/') +@argh.arg('--spk-model', + help='Path to speaker recognition model files. Defaults to /usr/share/buscribe/vosk-model-spk-0.4/') +@argh.arg('--start-time', + help='Start time of the transcript. Buscript will try to start reading 2 min before this time, if available, ' + 'to prime the model. The transcripts for that time will not be written to the database. If not given ' + 'transcription will start after last already transcribed line.') +@argh.arg('--start-time-override', + help='Ignore database and force override the start time.') +@argh.arg('--end-time', + help='End of transcript. If not given continues to transcribe live.') +@argh.arg('--base-dir', + help='Directory from which segments will be grabbed. Default is current working directory.') +def main(channel, database="", base_dir=".", + model="/usr/share/buscribe/vosk-model-en-us-0.21/", spk_model="/usr/share/buscribe/vosk-model-spk-0.4/", + start_time=None, end_time=None, start_time_override=None): + SAMPLE_RATE = 48000 + segments_dir = os.path.join(base_dir, channel, "source") + + logging.debug("Grabbing database...") + db_manager = DBManager(dsn=database) + db_conn = db_manager.get_conn() + db_cursor = db_conn.cursor() + logging.debug("Got database cursor.") + + logging.info("Figuring out starting time...") + db_start_time = get_end_of_transcript(db_cursor) + + # ~~Database start time takes priority~~ + # Overrride takes priority + if start_time_override is not None: + start_time = dateutil.parse(start_time_override) + elif db_start_time is not None: + start_time = db_start_time + elif start_time is not None: + start_time = dateutil.parse(start_time) + else: + # No start time argument AND no end of transcript (empty database) + logging.error("Couldn't figure out start time!") + db_conn.close() + exit(1) + logging.info("Start time: {}".format(start_time)) + + if end_time is not None: + end_time = dateutil.parse(end_time) + + logging.info("End time: {}".format(end_time)) + + logging.info("Loading models...") + recognizer = BuscribeRecognizer(SAMPLE_RATE, model, spk_model) + logging.info("Models loaded.") + + logging.info('Transcribing from {}'.format(start_time)) + + # Start priming the recognizer if possible + start_of_transcription = start_time + start_time -= timedelta(minutes=2) + + stopping = gevent.event.Event() + + def stop(): + logging.info("Shutting down") + + stopping.set() + + gevent.signal_handler(signal.SIGTERM, stop) + + while start_time < end_time: + # If end time isn't given, use current time (plus fudge) to get a "live" segment list + segments = common.get_best_segments(segments_dir, + start_time, + end_time if end_time is not None else + datetime.utcnow() + timedelta(minutes=2)) + + # If there is a hole at the start of the requested range because + if segments[0] is None: + # The hole is older than a minute, therefore + # - reset recognizer + # - continue from existing segments + if datetime.utcnow() - start_time > timedelta(minutes=1): + finish_off_recognizer(recognizer, db_cursor) + + # If the hole is less than a minute old, or if we don't have new segments: wait for segments + if datetime.utcnow() - start_time <= timedelta(minutes=1) or \ + segments == [None]: + logging.info("Waiting for new or backfilled segments.") + sleep(30) + + continue # Retry + + # Remove initial None segment (indicating segments start time is after desired start time) if it exists + if segments[0] is None: + segments = segments[1:] + + # Recognizer is fresh or was reset + if recognizer.segments_start_time is None: + recognizer.segments_start_time = segments[0].start + logging.info(f"Starting from: {segments[0].start}") + + segments_end_time = transcribe_segments(segments, SAMPLE_RATE, recognizer, start_of_transcription, db_cursor, + stopping) + + if end_time is not None and segments_end_time >= end_time or \ + stopping.is_set(): + # Work's done! + finish_off_recognizer(recognizer, db_cursor) + db_conn.close() + exit(0) + + start_time = segments_end_time diff --git a/buscribe/buscribe/buscribe/recognizer.py b/buscribe/buscribe/buscribe/recognizer.py new file mode 100644 index 0000000..075820e --- /dev/null +++ b/buscribe/buscribe/buscribe/recognizer.py @@ -0,0 +1,33 @@ +from vosk import Model, SpkModel, KaldiRecognizer + + +class BuscribeRecognizer(): + segments_start_time = None + + def __init__(self, sample_rate=48000, model_path="model_small", spk_model_path="spk_model"): + """Loads the speech recognition model and initializes the recognizer. + + Model paths are file paths to the directories that contain the models. + + Returns a recognizer object. + """ + self.sample_rate = sample_rate + self.model = Model(model_path) + self.spk_model = SpkModel(spk_model_path) + + self.recognizer = KaldiRecognizer(self.model, self.sample_rate, self.spk_model) + self.recognizer.SetWords(True) + + def reset(self): + self.recognizer = KaldiRecognizer(self.model, self.sample_rate, self.spk_model) + self.recognizer.SetWords(True) + self.segments_start_time = None + + def accept_waveform(self, data): + return self.recognizer.AcceptWaveform(data) + + def result(self): + return self.recognizer.Result() + + def final_result(self): + return self.recognizer.FinalResult() diff --git a/buscribe/buscribe/setup.py b/buscribe/buscribe/setup.py new file mode 100644 index 0000000..877a98a --- /dev/null +++ b/buscribe/buscribe/setup.py @@ -0,0 +1,19 @@ +from setuptools import setup, find_packages + +setup( + name = "wubloader-buscribe", + version = "0.0.0", + packages = find_packages(), + install_requires = [ + "argh", + "psycopg2", + #"gevent==1.5a2", + "gevent", + #"greenlet==0.4.16", + "greenlet", + "psycogreen", + "wubloader-common", + "python-dateutil", + "vosk" + ], +) diff --git a/buscribe/buscribe_data.sql b/buscribe/buscribe_data.sql new file mode 100644 index 0000000..b69c379 --- /dev/null +++ b/buscribe/buscribe_data.sql @@ -0,0 +1,185 @@ +BEGIN TRANSACTION; + +DROP TABLE IF EXISTS buscribe_verified_lines; +DROP TABLE IF EXISTS buscribe_line_speakers; +DROP TABLE IF EXISTS buscribe_speakers; +DROP TABLE IF EXISTS buscribe_verifiers; +DROP TABLE IF EXISTS buscribe_transcriptions; + +ROLLBACK; + +BEGIN TRANSACTION; + +TRUNCATE buscribe_verified_lines RESTART IDENTITY CASCADE; +TRUNCATE buscribe_line_speakers RESTART IDENTITY CASCADE; +TRUNCATE buscribe_speakers RESTART IDENTITY CASCADE; +TRUNCATE buscribe_verifiers RESTART IDENTITY CASCADE; +TRUNCATE buscribe_transcriptions RESTART IDENTITY CASCADE; + +ROLLBACK; + +CREATE TABLE buscribe_transcriptions +( + id BIGSERIAL PRIMARY KEY, + start_time timestamp without time zone NOT NULL, + end_time timestamp without time zone NOT NULL, + transcription_line text NOT NULL, + line_speaker float[128], + transcription_json jsonb NOT NULL +); + +CREATE INDEX buscribe_transcriptions_idx ON buscribe_transcriptions USING + GIN (to_tsvector('english', transcription_line)); + +-- This might not actually be needed. Check once there is more data. +CREATE INDEX buscribe_start_time_idx ON buscribe_transcriptions (start_time); +CREATE INDEX buscribe_end_time_idx ON buscribe_transcriptions (end_time); + +CREATE TABLE buscribe_speakers +( + id BIGSERIAL PRIMARY KEY, + name text NOT NULL UNIQUE CHECK ( name != '' ) +); + +CREATE TABLE buscribe_verifiers +( +-- id SERIAL PRIMARY KEY, + email TEXT PRIMARY KEY, + name TEXT NOT NULL +); + +-- For testing +-- INSERT INTO buscribe_verifiers(email, name) +-- VALUES ('placeholder@example.com', 'Place Holder'), +-- ('aguy@example.com', 'Arnold Guyana'); + +CREATE TABLE buscribe_line_speakers +( +-- id BIGSERIAL PRIMARY KEY, + line BIGINT NOT NULL REFERENCES buscribe_transcriptions, + speaker BIGINT NOT NULL REFERENCES buscribe_speakers, + verifier text NOT NULL REFERENCES buscribe_verifiers, + PRIMARY KEY (line, speaker, verifier) +); + +CREATE TABLE buscribe_line_inferred_speakers +( + line BIGINT NOT NULL REFERENCES buscribe_transcriptions, + speaker BIGINT NOT NULL REFERENCES buscribe_speakers, + PRIMARY KEY (line, speaker) +); + +CREATE TABLE buscribe_verified_lines +( +-- id BIGSERIAL PRIMARY KEY, + line BIGINT NOT NULL REFERENCES buscribe_transcriptions, + verified_line TEXT NOT NULL, + verifier text REFERENCES buscribe_verifiers, + PRIMARY KEY (line, verifier) +); + +-- Indexed with C weight (0.2 vs default 0.1) +CREATE INDEX buscribe_verified_lines_idx ON buscribe_verified_lines USING + GIN (setweight(to_tsvector('english', verified_line), 'C')); + +BEGIN; + +DROP VIEW buscribe_all_transcriptions; + +CREATE VIEW buscribe_all_transcriptions AS +SELECT buscribe_transcriptions.id, + start_time, + end_time, + coalesce(buscribe_verified_lines.verifier, speakers.verifier) AS verifier, + names, + coalesce(verified_line, buscribe_transcriptions.transcription_line) AS transcription_line, + coalesce(setweight(to_tsvector('english', verified_line), 'C'), + to_tsvector('english', buscribe_transcriptions.transcription_line)) AS transcription_line_ts, + setweight(to_tsvector(array_to_string(names, ' ')), 'C') AS names_ts, + null AS transcription_json +FROM buscribe_transcriptions + LEFT OUTER JOIN buscribe_verified_lines ON buscribe_transcriptions.id = buscribe_verified_lines.line + LEFT OUTER JOIN ( + SELECT line, verifier, array_agg(name) AS names + FROM buscribe_line_speakers + INNER JOIN buscribe_speakers ON buscribe_line_speakers.speaker = buscribe_speakers.id + GROUP BY line, verifier +) AS speakers ON buscribe_transcriptions.id = speakers.line AND ( + speakers.verifier = buscribe_verified_lines.verifier OR + buscribe_verified_lines.verifier IS NULL + ) +WHERE coalesce(buscribe_verified_lines.verifier, speakers.verifier) IS NOT NULL +UNION +SELECT id, + start_time, + end_time, + null AS verifier, + names, + transcription_line, + to_tsvector('english', transcription_line) AS transcription_line_ts, + null AS names_ts, + transcription_json +FROM buscribe_transcriptions + LEFT OUTER JOIN ( + SELECT line, array_agg(name) AS names + FROM buscribe_line_inferred_speakers + INNER JOIN buscribe_speakers ON buscribe_line_inferred_speakers.speaker = buscribe_speakers.id + GROUP BY line +) AS speakers ON id = speakers.line; + +ROLLBACK; + +CREATE VIEW buscribe_all_transcriptions2 AS +SELECT buscribe_transcriptions.id, + start_time, + end_time, + coalesce(buscribe_verified_lines.verifier, speakers.verifier) AS verifier, + names, + coalesce(verified_line, buscribe_transcriptions.transcription_line) AS transcription_line, + to_tsvector('english', buscribe_transcriptions.transcription_line) AS machine_line_ts, + setweight(to_tsvector('english', verified_line), 'C') AS verified_line_ts, + coalesce(setweight(to_tsvector('english', verified_line), 'C'), + to_tsvector('english', buscribe_transcriptions.transcription_line)) AS transcription_line_ts, + setweight(to_tsvector(array_to_string(names, ' ')), 'C') AS names_ts, + null AS transcription_json +FROM buscribe_transcriptions + LEFT OUTER JOIN buscribe_verified_lines ON buscribe_transcriptions.id = buscribe_verified_lines.line + LEFT OUTER JOIN ( + SELECT line, verifier, array_agg(name) AS names + FROM buscribe_line_speakers + INNER JOIN buscribe_speakers ON buscribe_line_speakers.speaker = buscribe_speakers.id + GROUP BY line, verifier +) AS speakers ON buscribe_transcriptions.id = speakers.line AND ( + speakers.verifier = buscribe_verified_lines.verifier OR + buscribe_verified_lines.verifier IS NULL + ) +WHERE coalesce(buscribe_verified_lines.verifier, speakers.verifier) IS NOT NULL +UNION +SELECT id, + start_time, + end_time, + null AS verifier, + names, + transcription_line, + to_tsvector('english', transcription_line) AS machine_line_ts, + null AS verified_line_ts, + to_tsvector('english', transcription_line) AS transcription_line_ts, + null AS names_ts, + transcription_json +FROM buscribe_transcriptions + LEFT OUTER JOIN ( + SELECT line, array_agg(name) AS names + FROM buscribe_line_inferred_speakers + INNER JOIN buscribe_speakers ON buscribe_line_inferred_speakers.speaker = buscribe_speakers.id + GROUP BY line +) AS speakers ON id = speakers.line; + +-- Convert last lexeme in a query to prefix query. +CREATE FUNCTION convert_query(query_text text) RETURNS tsquery AS +$$ +DECLARE + ws_query text := websearch_to_tsquery(query_text)::text; +BEGIN + RETURN (CASE WHEN ws_query != '' THEN ws_query || ':*' ELSE '' END)::tsquery; +END; +$$ LANGUAGE plpgsql; diff --git a/buscribe/common/common/__init__.py b/buscribe/common/common/__init__.py new file mode 100644 index 0000000..299db19 --- /dev/null +++ b/buscribe/common/common/__init__.py @@ -0,0 +1,124 @@ + +"""A place for common utilities between wubloader components""" +import datetime +import errno +import os +import random + +from .segments import get_best_segments, rough_cut_segments, fast_cut_segments, full_cut_segments, parse_segment_path, SegmentInfo +from .stats import timed, PromLogCountsHandler, install_stacksampler + + +def dt_to_bustime(start, dt): + """Convert a datetime to bus time. Bus time is seconds since the given start point.""" + return (dt - start).total_seconds() + + +def bustime_to_dt(start, bustime): + """Convert from bus time to a datetime""" + return start + datetime.timedelta(seconds=bustime) + + +def parse_bustime(bustime): + """Convert from bus time human-readable string [-]HH:MM[:SS[.fff]] + to float seconds since bustime 00:00. Inverse of format_bustime(), + see it for detail.""" + if bustime.startswith('-'): + # parse without the -, then negate it + return -parse_bustime(bustime[1:]) + + parts = bustime.strip().split(':') + if len(parts) == 2: + hours, mins = parts + secs = 0 + elif len(parts) == 3: + hours, mins, secs = parts + else: + raise ValueError("Invalid bustime: must be HH:MM[:SS]") + hours = int(hours) + mins = int(mins) + secs = float(secs) + return 3600 * hours + 60 * mins + secs + + +def format_bustime(bustime, round="millisecond"): + """Convert bustime to a human-readable string (-)HH:MM:SS.fff, with the + ending cut off depending on the value of round: + "millisecond": (default) Round to the nearest millisecond. + "second": Round down to the current second. + "minute": Round down to the current minute. + Examples: + 00:00:00.000 + 01:23:00 + 110:50 + 159:59:59.999 + -10:30:01.100 + Negative times are formatted as time-until-start, preceeded by a minus + sign. + eg. "-1:20:00" indicates the run begins in 80 minutes. + """ + sign = '' + if bustime < 0: + sign = '-' + bustime = -bustime + total_mins, secs = divmod(bustime, 60) + hours, mins = divmod(total_mins, 60) + parts = [ + "{:02d}".format(int(hours)), + "{:02d}".format(int(mins)), + ] + if round == "minute": + pass + elif round == "second": + parts.append("{:02d}".format(int(secs))) + elif round == "millisecond": + parts.append("{:06.3f}".format(secs)) + else: + raise ValueError("Bad rounding value: {!r}".format(round)) + return sign + ":".join(parts) + + +def rename(old, new): + """Atomic rename that succeeds if the target already exists, since we're naming everything + by hash anyway, so if the filepath already exists the file itself is already there. + In this case, we delete the source file. + """ + try: + os.rename(old, new) + except OSError as e: + if e.errno != errno.EEXIST: + raise + os.remove(old) + + +def ensure_directory(path): + """Create directory that contains path, as well as any parent directories, + if they don't already exist.""" + dir_path = os.path.dirname(path) + os.makedirs(dir_path, exist_ok=True) + + +def jitter(interval): + """Apply some 'jitter' to an interval. This is a random +/- 10% change in order to + smooth out patterns and prevent everything from retrying at the same time. + """ + return interval * (0.9 + 0.2 * random.random()) + + +def writeall(write, value): + """Helper for writing a complete string to a file-like object. + Pass the write function and the value to write, and it will loop if needed to ensure + all data is written. + Works for both text and binary files, as long as you pass the right value type for + the write function. + """ + while value: + n = write(value) + if n is None: + # The write func doesn't return the amount written, assume it always writes everything + break + if n == 0: + # This would cause an infinite loop...blow up instead so it's clear what the problem is + raise Exception("Wrote 0 chars while calling {} with {}-char {}".format(write, len(value), type(value).__name__)) + # remove the first n chars and go again if we have anything left + value = value[n:] diff --git a/buscribe/common/common/database.py b/buscribe/common/common/database.py new file mode 100644 index 0000000..8bac136 --- /dev/null +++ b/buscribe/common/common/database.py @@ -0,0 +1,73 @@ + +""" +Code shared between components that touch the database. +Note that this code requires psycopg2 and psycogreen, but the common module +as a whole does not to avoid needing to install them for components that don't need it. +""" + +from contextlib import contextmanager + +import psycopg2 +import psycopg2.extensions +import psycopg2.extras +from psycogreen.gevent import patch_psycopg + + +class DBManager(object): + """Patches psycopg2 before any connections are created. Stores connect info + for easy creation of new connections, and sets some defaults before + returning them. + + It has the ability to serve as a primitive connection pool, as getting a + new conn will return existing conns it knows about first, but you + should use a real conn pool for any non-trivial use. + + Returned conns are set to seralizable isolation level, autocommit, and use + NamedTupleCursor cursors.""" + def __init__(self, connect_timeout=30, **connect_kwargs): + patch_psycopg() + self.conns = [] + self.connect_timeout = connect_timeout + self.connect_kwargs = connect_kwargs + + def put_conn(self, conn): + self.conns.append(conn) + + def get_conn(self): + if self.conns: + return self.conns.pop(0) + conn = psycopg2.connect(cursor_factory=psycopg2.extras.NamedTupleCursor, + connect_timeout=self.connect_timeout, **self.connect_kwargs) + # We use serializable because it means less issues to think about, + # we don't care about the performance concerns and everything we do is easily retryable. + # This shouldn't matter in practice anyway since everything we're doing is either read-only + # searches or targetted single-row updates. + conn.isolation_level = psycopg2.extensions.ISOLATION_LEVEL_SERIALIZABLE + conn.autocommit = True + return conn + + +@contextmanager +def transaction(conn): + """Helper context manager that runs the code block as a single database transaction + instead of in autocommit mode. The only difference between this and "with conn" is + that we explicitly disable then re-enable autocommit.""" + old_autocommit = conn.autocommit + conn.autocommit = False + try: + with conn: + yield + finally: + conn.autocommit = old_autocommit + + +def query(conn, query, *args, **kwargs): + """Helper that takes a conn, creates a cursor and executes query against it, + then returns the cursor. + Variables may be given as positional or keyword args (but not both), corresponding + to %s vs %(key)s placeholder forms.""" + if args and kwargs: + raise TypeError("Cannot give both args and kwargs") + cur = conn.cursor() + cur.execute(query, args or kwargs or None) + return cur diff --git a/buscribe/common/common/dateutil.py b/buscribe/common/common/dateutil.py new file mode 100644 index 0000000..7793e6e --- /dev/null +++ b/buscribe/common/common/dateutil.py @@ -0,0 +1,23 @@ + + +"""Wrapper code around dateutil to use it more sanely""" + + +# required so we are able to import dateutil despite this module also being called dateutil +from __future__ import absolute_import + +import dateutil.parser +import dateutil.tz + + +def parse(timestamp): + """Parse given timestamp, convert to UTC, and return naive UTC datetime""" + dt = dateutil.parser.parse(timestamp) + if dt.tzinfo is not None: + dt = dt.astimezone(dateutil.tz.tzutc()).replace(tzinfo=None) + return dt + + +def parse_utc_only(timestamp): + """Parse given timestamp, but assume it's already in UTC and ignore other timezone info""" + return dateutil.parser.parse(timestamp, ignoretz=True) diff --git a/buscribe/common/common/flask_stats.py b/buscribe/common/common/flask_stats.py new file mode 100644 index 0000000..e74b985 --- /dev/null +++ b/buscribe/common/common/flask_stats.py @@ -0,0 +1,98 @@ +""" +Code shared between components to gather stats from flask methods. +Note that this code requires flask, but the common module as a whole does not +to avoid needing to install them for components that don't need it. +""" + +import functools + +from flask import request +from flask import g as request_store +from monotonic import monotonic +import prometheus_client as prom + + +# Generic metrics that all http requests get logged to (see below for specific metrics per endpoint) + +LATENCY_HELP = "Time taken to run the request handler and create a response" +# buckets: very long playlists / cutting can be quite slow, +# so we have a wider range of latencies than default, up to 10min. +LATENCY_BUCKETS = [.001, .005, .01, .05, .1, .5, 1, 5, 10, 30, 60, 120, 300, 600] +generic_latency = prom.Histogram( + 'http_request_latency_all', LATENCY_HELP, + ['endpoint', 'method', 'status'], + buckets=LATENCY_BUCKETS, +) + +CONCURRENT_HELP = 'Number of requests currently ongoing' +generic_concurrent = prom.Gauge( + 'http_request_concurrency_all', CONCURRENT_HELP, + ['endpoint', 'method'], +) + + +def request_stats(fn): + """Decorator that wraps a handler func to collect metrics. + Adds handler func args as labels, along with 'endpoint' label using func's name, + method and response status where applicable.""" + # We have to jump through some hoops here, because the prometheus client lib demands + # we pre-define our label names, but we don't know the names of the handler kwargs + # until the first time the function's called. So we delay defining the metrics until + # first call. + # In addition, it doesn't let us have different sets of labels with the same name. + # So we record everything twice: Once under a generic name with only endpoint, method + # and status, and once under a name specific to the endpoint with the full set of labels. + metrics = {} + endpoint = fn.__name__ + + @functools.wraps(fn) + def _stats(**kwargs): + if not metrics: + # first call, set up metrics + labels_no_status = sorted(kwargs.keys()) + ['endpoint', 'method'] + labels = labels_no_status + ['status'] + metrics['latency'] = prom.Histogram( + 'http_request_latency_{}'.format(endpoint), LATENCY_HELP, + labels, buckets=LATENCY_BUCKETS, + ) + metrics['concurrent'] = prom.Gauge( + 'http_request_concurrency_{}'.format(endpoint), CONCURRENT_HELP, + labels_no_status, + ) + + request_store.metrics = metrics + request_store.endpoint = endpoint + request_store.method = request.method + request_store.labels = {k: str(v) for k, v in kwargs.items()} + generic_concurrent.labels(endpoint=endpoint, method=request.method).inc() + metrics['concurrent'].labels(endpoint=endpoint, method=request.method, **request_store.labels).inc() + request_store.start_time = monotonic() + return fn(**kwargs) + + return _stats + + +def after_request(response): + """Must be registered to run after requests. Finishes tracking the request + and logs most of the metrics. + We do it in this way, instead of inside the request_stats wrapper, because it lets flask + normalize the handler result into a Response object. + """ + if 'metrics' not in request_store: + return response # untracked handler + + end_time = monotonic() + metrics = request_store.metrics + endpoint = request_store.endpoint + method = request_store.method + labels = request_store.labels + start_time = request_store.start_time + + generic_concurrent.labels(endpoint=endpoint, method=method).dec() + metrics['concurrent'].labels(endpoint=endpoint, method=method, **labels).dec() + + status = str(response.status_code) + generic_latency.labels(endpoint=endpoint, method=method, status=status).observe(end_time - start_time) + metrics['latency'].labels(endpoint=endpoint, method=method, status=status, **labels).observe(end_time - start_time) + + return response diff --git a/buscribe/common/common/googleapis.py b/buscribe/common/common/googleapis.py new file mode 100644 index 0000000..d7aa292 --- /dev/null +++ b/buscribe/common/common/googleapis.py @@ -0,0 +1,67 @@ + +import time +import logging + +import gevent + +from .requests import InstrumentedSession + +# Wraps all requests in some metric collection +requests = InstrumentedSession() + + +class GoogleAPIClient(object): + """Manages access to google apis and maintains an active access token. + Make calls using client.request(), which is a wrapper for requests.request(). + """ + + ACCESS_TOKEN_ERROR_RETRY_INTERVAL = 10 + # Refresh token 10min before it expires (it normally lasts an hour) + ACCESS_TOKEN_REFRESH_TIME_BEFORE_EXPIRY = 600 + + def __init__(self, client_id, client_secret, refresh_token): + self.client_id = client_id + self.client_secret = client_secret + self.refresh_token = refresh_token + + self._first_get_access_token = gevent.spawn(self.get_access_token) + + @property + def access_token(self): + """Blocks if access token unavailable yet""" + self._first_get_access_token.join() + return self._access_token + + def get_access_token(self): + """Authenticates against google's API and retrieves a token we will use in + subsequent requests. + This function gets called automatically when needed, there should be no need to call it + yourself.""" + while True: + try: + start_time = time.time() + resp = requests.post('https://www.googleapis.com/oauth2/v4/token', data={ + 'client_id': self.client_id, + 'client_secret': self.client_secret, + 'refresh_token': self.refresh_token, + 'grant_type': 'refresh_token', + }, metric_name='get_access_token') + resp.raise_for_status() + data = resp.json() + self._access_token = data['access_token'] + expires_in = (start_time + data['expires_in']) - time.time() + if expires_in < self.ACCESS_TOKEN_REFRESH_TIME_BEFORE_EXPIRY: + self.logger.warning("Access token expires in {}s, less than normal leeway time of {}s".format( + expires_in, self.ACCESS_TOKEN_REFRESH_TIME_BEFORE_EXPIRY, + )) + gevent.spawn_later(expires_in - self.ACCESS_TOKEN_REFRESH_TIME_BEFORE_EXPIRY, self.get_access_token) + except Exception: + logging.exception("Failed to fetch access token, retrying") + gevent.sleep(self.ACCESS_TOKEN_ERROR_RETRY_INTERVAL) + else: + break + + def request(self, method, url, headers={}, **kwargs): + # merge in auth header + headers = dict(headers, Authorization='Bearer {}'.format(self.access_token)) + return requests.request(method, url, headers=headers, **kwargs) diff --git a/buscribe/common/common/requests.py b/buscribe/common/common/requests.py new file mode 100644 index 0000000..194dafb --- /dev/null +++ b/buscribe/common/common/requests.py @@ -0,0 +1,55 @@ + +"""Code for instrumenting requests calls. Requires requests, obviously.""" + +import urllib.parse + +import requests.sessions +import prometheus_client as prom +from monotonic import monotonic + +request_latency = prom.Histogram( + 'http_client_request_latency', + 'Time taken to make an outgoing HTTP request. ' + 'Status = "error" is used if an error occurs. Measured as time from first byte sent to ' + 'headers finished being parsed, ie. does not include reading a streaming response.', + ['name', 'method', 'domain', 'status'], +) + +response_size = prom.Histogram( + 'http_client_response_size', + "The content length of (non-streaming) responses to outgoing HTTP requests.", + ['name', 'method', 'domain', 'status'], +) + +request_concurrency = prom.Gauge( + 'http_client_request_concurrency', + "The number of outgoing HTTP requests currently ongoing", + ['name', 'method', 'domain'], +) + +class InstrumentedSession(requests.sessions.Session): + """A requests Session that automatically records metrics on requests made. + Users may optionally pass a 'metric_name' kwarg that will be included as the 'name' label. + """ + + def request(self, method, url, *args, **kwargs): + _, domain, _, _, _ = urllib.parse.urlsplit(url) + name = kwargs.pop('metric_name', '') + + start = monotonic() # we only use our own measured latency if an error occurs + try: + with request_concurrency.labels(name, method, domain).track_inprogress(): + response = super().request(method, url, *args, **kwargs) + except Exception: + latency = monotonic() - start + request_latency.labels(name, method, domain, "error").observe(latency) + raise + + request_latency.labels(name, method, domain, response.status_code).observe(response.elapsed.total_seconds()) + try: + content_length = int(response.headers['content-length']) + except (KeyError, ValueError): + pass # either not present or not valid + else: + response_size.labels(name, method, domain, response.status_code).observe(content_length) + return response diff --git a/buscribe/common/common/segments.py b/buscribe/common/common/segments.py new file mode 100644 index 0000000..dbc9cfc --- /dev/null +++ b/buscribe/common/common/segments.py @@ -0,0 +1,513 @@ + +"""A place for common utilities between wubloader components""" + + +import base64 +import datetime +import errno +import itertools +import json +import logging +import os +import shutil +from collections import namedtuple +from contextlib import closing +from tempfile import TemporaryFile + +import gevent +from gevent import subprocess + +from .stats import timed + + +def unpadded_b64_decode(s): + """Decode base64-encoded string that has had its padding removed. + Note it takes a unicode and returns a bytes.""" + # right-pad with '=' to multiple of 4 + s = s + '=' * (- len(s) % 4) + return base64.b64decode(s.encode(), b"-_") + + +class SegmentInfo( + namedtuple('SegmentInfoBase', [ + 'path', 'channel', 'quality', 'start', 'duration', 'type', 'hash' + ]) +): + """Info parsed from a segment path, including original path. + Note that start time is a datetime and duration is a timedelta, and hash is a decoded binary string.""" + @property + def end(self): + return self.start + self.duration + @property + def is_partial(self): + """Note that suspect is considered partial""" + return self.type != "full" + + +def parse_segment_timestamp(hour_str, min_str): + """This is faster than strptime, which dominates our segment processing time. + It takes strictly formatted hour = "%Y-%m-%dT%H" and time = "%M:%S.%f".""" + year = int(hour_str[0:4]) + month = int(hour_str[5:7]) + day = int(hour_str[8:10]) + hour = int(hour_str[11:13]) + min = int(min_str[0:2]) + sec = int(min_str[3:5]) + microsec_str = min_str[6:] + microsec_str += '0' * (6 - len(microsec_str)) # right-pad zeros to 6 digits, eg. "123" -> "123000" + microsec = int(microsec_str) + return datetime.datetime(year, month, day, hour, min, sec, microsec) + + +def parse_segment_path(path): + """Parse segment path, returning a SegmentInfo. If path is only the trailing part, + eg. just a filename, it will leave unknown fields as None.""" + parts = path.split('/') + # left-pad parts with None up to 4 parts + parts = [None] * (4 - len(parts)) + parts + # pull info out of path parts + channel, quality, hour, filename = parts[-4:] + # split filename, which should be TIME-DURATION-TYPE-HASH.ts + try: + if not filename.endswith('.ts'): + raise ValueError("Does not end in .ts") + filename = filename[:-len('.ts')] # chop off .ts + parts = filename.split('-', 3) + if len(parts) != 4: + raise ValueError("Not enough dashes in filename") + time, duration, type, hash = parts + if type not in ('full', 'suspect', 'partial', 'temp'): + raise ValueError("Unknown type {!r}".format(type)) + hash = None if type == 'temp' else unpadded_b64_decode(hash) + start = None if hour is None else parse_segment_timestamp(hour, time) + return SegmentInfo( + path = path, + channel = channel, + quality = quality, + start = start, + duration = datetime.timedelta(seconds=float(duration)), + type = type, + hash = hash, + ) + except ValueError as e: + # wrap error but preserve original traceback + raise ValueError("Bad path {!r}: {}".format(path, e)).with_traceback(e.__traceback__) + + +class ContainsHoles(Exception): + """Raised by get_best_segments() when a hole is found and allow_holes is False""" + + +@timed( + hours_path=lambda ret, hours_path, *args, **kwargs: hours_path, + has_holes=lambda ret, *args, **kwargs: None in ret, + normalize=lambda ret, *args, **kwargs: len([x for x in ret if x is not None]), +) +def get_best_segments(hours_path, start, end, allow_holes=True): + """Return a list of the best sequence of non-overlapping segments + we have for a given time range. Hours path should be the directory containing hour directories. + Time args start and end should be given as datetime objects. + The first segment may start before the time range, and the last may end after it. + The returned list contains items that are either: + SegmentInfo: a segment + None: represents a discontinuity between the previous segment and the next one. + ie. as long as two segments appear next to each other, we guarentee there is no gap between + them, the second one starts right as the first one finishes. + Similarly, unless the first item is None, the first segment starts <= the start of the time + range, and unless the last item is None, the last segment ends >= the end of the time range. + Example: + Suppose you ask for a time range from 10 to 60. We have 10-second segments covering + the following times: + 5 to 15 + 15 to 25 + 30 to 40 + 40 to 50 + Then the output would look like: + segment from 5 to 15 + segment from 15 to 25 + None, as the previous segment ends 5sec before the next one begins + segment from 30 to 40 + segment from 40 to 50 + None, as the previous segment ends 10sec before the requested end time of 60. + Note that any is_partial=True segment will be followed by a None, since we can't guarentee + it joins on to the next segment fully intact. + + If allow_holes is False, then we fail fast at the first discontinuity found + and raise ContainsHoles. If ContainsHoles is not raised, the output is guarenteed to not contain + any None items. + """ + # Note: The exact equality checks in this function are not vulnerable to floating point error, + # but only because all input dates and durations are only precise to the millisecond, and + # python's datetime types represent these as integer microseconds internally. So the parsing + # to these types is exact, and all operations on them are exact, so all operations are exact. + + result = [] + + for hour in hour_paths_for_range(hours_path, start, end): + # Especially when processing multiple hours, this routine can take a signifigant amount + # of time with no blocking. To ensure other stuff is still completed in a timely fashion, + # we yield to let other things run. + gevent.idle() + + # best_segments_by_start will give us the best available segment for each unique start time + for segment in best_segments_by_start(hour): + + # special case: first segment + if not result: + # first segment is allowed to be before start as long as it includes it + if segment.start <= start < segment.end: + # segment covers start + result.append(segment) + elif start < segment.start < end: + # segment is after start (but before end), so there was no segment that covers start + # so we begin with a None + if not allow_holes: + raise ContainsHoles + result.append(None) + result.append(segment) + else: + # segment is before start, and doesn't cover start, or starts after end. + # ignore and go to next. + continue + else: + # normal case: check against previous segment end time + prev_end = result[-1].end + if segment.start < prev_end: + # Overlap! This shouldn't happen, though it might be possible due to weirdness + # if the stream drops then starts again quickly. We simply ignore the overlapping + # segment and let the algorithm continue. + logging.warning("Overlapping segments: {} overlaps end of {}".format(segment, result[-1])) + continue + if result[-1].is_partial or prev_end < segment.start: + # there's a gap between prev end and this start, so add a None + if not allow_holes: + raise ContainsHoles + result.append(None) + result.append(segment) + + # check if we've reached the end + if end <= segment.end: + break + + # this is a weird little construct that says "if we broke from the inner loop, + # then also break from the outer one. otherwise continue." + else: + continue + break + + # check if we need a trailing None because last segment is partial or doesn't reach end, + # or we found nothing at all + if not result or result[-1].is_partial or result[-1].end < end: + if not allow_holes: + raise ContainsHoles + result.append(None) + + return result + + +def hour_paths_for_range(hours_path, start, end): + """Generate a list of hour paths to check when looking for segments between start and end.""" + # truncate start and end to the hour + def truncate(dt): + return dt.replace(microsecond=0, second=0, minute=0) + current = truncate(start) + end = truncate(end) + # Begin in the hour prior to start, as there may be a segment that starts in that hour + # but contains the start time, eg. if the start time is 01:00:01 and there's a segment + # at 00:59:59 which goes for 3 seconds. + # Checking the entire hour when in most cases it won't be needed is wasteful, but it's also + # pretty quick and the complexity of only checking this case when needed just isn't worth it. + current -= datetime.timedelta(hours=1) + while current <= end: + yield os.path.join(hours_path, current.strftime("%Y-%m-%dT%H")) + current += datetime.timedelta(hours=1) + + +def best_segments_by_start(hour): + """Within a given hour path, yield the "best" segment per unique segment start time. + Best is defined as type=full, or failing that type=suspect, or failing that the longest type=partial. + Note this means this function may perform os.stat()s. + """ + try: + segment_paths = os.listdir(hour) + except OSError as e: + if e.errno != errno.ENOENT: + raise + # path does not exist, treat it as having no files + return + segment_paths.sort() + # raise a warning for any files that don't parse as segments and ignore them + parsed = [] + for name in segment_paths: + try: + parsed.append(parse_segment_path(os.path.join(hour, name))) + except ValueError: + logging.warning("Failed to parse segment {!r}".format(os.path.join(hour, name)), exc_info=True) + + for start_time, segments in itertools.groupby(parsed, key=lambda segment: segment.start): + # ignore temp segments as they might go away by the time we want to use them + segments = [segment for segment in segments if segment.type != "temp"] + if not segments: + # all segments were temp, move on + continue + + full_segments = [segment for segment in segments if not segment.is_partial] + if full_segments: + if len(full_segments) != 1: + logging.info("Multiple versions of full segment at start_time {}: {}".format( + start_time, ", ".join(map(str, segments)) + )) + # We've observed some cases where the same segment (with the same hash) will be reported + # with different durations (generally at stream end). Prefer the longer duration (followed by longest size), + # as this will ensure that if hashes are different we get the most data, and if they + # are the same it should keep holes to a minimum. + # If same duration and size, we have to pick one, so pick highest-sorting hash just so we're consistent. + sizes = {segment: os.stat(segment.path).st_size for segment in segments} + full_segments = [max(full_segments, key=lambda segment: (segment.duration, sizes[segment], segment.hash))] + yield full_segments[0] + continue + # no full segments, fall back to measuring partials. Prefer suspect over partial. + yield max(segments, key=lambda segment: ( + 1 if segment.type == 'suspect' else 0, + os.stat(segment.path).st_size, + )) + + +def streams_info(segment): + """Return ffprobe's info on streams as a list of dicts""" + output = subprocess.check_output([ + 'ffprobe', + '-hide_banner', '-loglevel', 'fatal', # suppress noisy output + '-of', 'json', '-show_streams', # get streams info as json + segment.path, + ]) + # output here is a bytes, but json.loads will accept it + return json.loads(output)['streams'] + + +def ffmpeg_cut_segment(segment, cut_start=None, cut_end=None): + """Return a Popen object which is ffmpeg cutting the given single segment. + This is used when doing a fast cut. + """ + args = [ + 'ffmpeg', + '-hide_banner', '-loglevel', 'error', # suppress noisy output + '-i', segment.path, + ] + # output from ffprobe is generally already sorted but let's be paranoid, + # because the order of map args matters. + for stream in sorted(streams_info(segment), key=lambda stream: stream['index']): + # map the same stream in the same position from input to output + args += ['-map', '0:{}'.format(stream['index'])] + if stream['codec_type'] in ('video', 'audio'): + # for non-metadata streams, make sure we use the same codec (metadata streams + # are a bit weirder, and ffmpeg will do the right thing anyway) + args += ['-codec:{}'.format(stream['index']), stream['codec_name']] + # now add trim args + if cut_start: + args += ['-ss', str(cut_start)] + if cut_end: + args += ['-to', str(cut_end)] + # output to stdout as MPEG-TS + args += ['-f', 'mpegts', '-'] + # run it + logging.info("Running segment cut with args: {}".format(" ".join(args))) + return subprocess.Popen(args, stdout=subprocess.PIPE) + + +def ffmpeg_cut_stdin(output_file, cut_start, duration, encode_args): + """Return a Popen object which is ffmpeg cutting from stdin. + This is used when doing a full cut. + If output_file is not subprocess.PIPE, + uses explicit output file object instead of using a pipe, + because some video formats require a seekable file. + """ + args = [ + 'ffmpeg', + '-hide_banner', '-loglevel', 'error', # suppress noisy output + '-i', '-', + '-ss', cut_start, + '-t', duration, + ] + list(encode_args) + if output_file is subprocess.PIPE: + args.append('-') # output to stdout + else: + args += [ + # We want ffmpeg to write to our tempfile, which is its stdout. + # However, it assumes that '-' means the output is not seekable. + # We trick it into understanding that its stdout is seekable by + # telling it to write to the fd via its /proc/self filename. + '/proc/self/fd/1', + # But of course, that file "already exists", so we need to give it + # permission to "overwrite" it. + '-y', + ] + args = list(map(str, args)) + logging.info("Running full cut with args: {}".format(" ".join(args))) + return subprocess.Popen(args, stdin=subprocess.PIPE, stdout=output_file) + + +def read_chunks(fileobj, chunk_size=16*1024): + """Read fileobj until EOF, yielding chunk_size sized chunks of data.""" + while True: + chunk = fileobj.read(chunk_size) + if not chunk: + break + yield chunk + + +@timed('cut', cut_type='rough', normalize=lambda _, segments, start, end: (end - start).total_seconds()) +def rough_cut_segments(segments, start, end): + """Yields chunks of a MPEGTS video file covering at least the timestamp range, + likely with a few extra seconds on either side. + This method works by simply concatenating all the segments, without any re-encoding. + """ + for segment in segments: + with open(segment.path, 'rb') as f: + for chunk in read_chunks(f): + yield chunk + + +@timed('cut', cut_type='fast', normalize=lambda _, segments, start, end: (end - start).total_seconds()) +def fast_cut_segments(segments, start, end): + """Yields chunks of a MPEGTS video file covering the exact timestamp range. + segments should be a list of segments as returned by get_best_segments(). + This method works by only cutting the first and last segments, and concatenating the rest. + This only works if the same codec settings etc are used across all segments. + This should almost always be true but may cause weird results if not. + """ + + # how far into the first segment to begin (if no hole at start) + cut_start = None + if segments[0] is not None: + cut_start = (start - segments[0].start).total_seconds() + if cut_start < 0: + raise ValueError("First segment doesn't begin until after cut start, but no leading hole indicated") + + # how far into the final segment to end (if no hole at end) + cut_end = None + if segments[-1] is not None: + cut_end = (end - segments[-1].start).total_seconds() + if cut_end < 0: + raise ValueError("Last segment ends before cut end, but no trailing hole indicated") + + # Set first and last only if they actually need cutting. + # Note this handles both the cut_start = None (no first segment to cut) + # and cut_start = 0 (first segment already starts on time) cases. + first = segments[0] if cut_start else None + last = segments[-1] if cut_end else None + + for segment in segments: + if segment is None: + logging.debug("Skipping discontinuity while cutting") + # TODO: If we want to be safe against the possibility of codecs changing, + # we should check the streams_info() after each discontinuity. + continue + + # note first and last might be the same segment. + # note a segment will only match if cutting actually needs to be done + # (ie. cut_start or cut_end is not 0) + if segment in (first, last): + proc = None + try: + proc = ffmpeg_cut_segment( + segment, + cut_start if segment == first else None, + cut_end if segment == last else None, + ) + with closing(proc.stdout): + for chunk in read_chunks(proc.stdout): + yield chunk + proc.wait() + except Exception as ex: + # try to clean up proc, ignoring errors + if proc is not None: + try: + proc.kill() + except OSError: + pass + raise ex + else: + # check if ffmpeg had errors + if proc.returncode != 0: + raise Exception( + "Error while streaming cut: ffmpeg exited {}".format(proc.returncode) + ) + else: + # no cutting needed, just serve the file + with open(segment.path, 'rb') as f: + for chunk in read_chunks(f): + yield chunk + + +def feed_input(segments, pipe): + """Write each segment's data into the given pipe in order. + This is used to provide input to ffmpeg in a full cut.""" + for segment in segments: + with open(segment.path, 'rb') as f: + try: + shutil.copyfileobj(f, pipe) + except OSError as e: + # ignore EPIPE, as this just means the end cut meant we didn't need all it + if e.errno != errno.EPIPE: + raise + pipe.close() + + +@timed('cut', + cut_type=lambda _, segments, start, end, encode_args, stream=False: ("full-streamed" if stream else "full-buffered"), + normalize=lambda _, segments, start, end, *a, **k: (end - start).total_seconds(), +) +def full_cut_segments(segments, start, end, encode_args, stream=False): + """If stream=true, assume encode_args gives a streamable format, + and begin returning output immediately instead of waiting for ffmpeg to finish + and buffering to disk.""" + + # Remove holes + segments = [segment for segment in segments if segment is not None] + + # how far into the first segment to begin + cut_start = max(0, (start - segments[0].start).total_seconds()) + # duration + duration = (end - start).total_seconds() + + ffmpeg = None + input_feeder = None + try: + + if stream: + # When streaming, we can just use a pipe + tempfile = subprocess.PIPE + else: + # Some ffmpeg output formats require a seekable file. + # For the same reason, it's not safe to begin uploading until ffmpeg + # has finished. We create a temporary file for this. + tempfile = TemporaryFile() + + ffmpeg = ffmpeg_cut_stdin(tempfile, cut_start, duration, encode_args) + input_feeder = gevent.spawn(feed_input, segments, ffmpeg.stdin) + + # When streaming, we can return data as it is available + if stream: + for chunk in read_chunks(ffmpeg.stdout): + yield chunk + + # check if any errors occurred in input writing, or if ffmpeg exited non-success. + if ffmpeg.wait() != 0: + raise Exception("Error while streaming cut: ffmpeg exited {}".format(ffmpeg.returncode)) + input_feeder.get() # re-raise any errors from feed_input() + + # When not streaming, we can only return the data once ffmpeg has exited + if not stream: + for chunk in read_chunks(tempfile): + yield chunk + finally: + # if something goes wrong, try to clean up ignoring errors + if input_feeder is not None: + input_feeder.kill() + if ffmpeg is not None and ffmpeg.poll() is None: + for action in (ffmpeg.kill, ffmpeg.stdin.close, ffmpeg.stdout.close): + try: + action() + except (OSError, IOError): + pass diff --git a/buscribe/common/common/stats.py b/buscribe/common/common/stats.py new file mode 100644 index 0000000..68777d3 --- /dev/null +++ b/buscribe/common/common/stats.py @@ -0,0 +1,257 @@ + +import atexit +import functools +import logging +import os +import signal + +import gevent.lock +from monotonic import monotonic +import prometheus_client as prom + + +# need to keep global track of what metrics we've registered +# because we're not allowed to re-register +metrics = {} + + +def timed(name=None, + buckets=[10.**x for x in range(-9, 5)], normalized_buckets=None, + normalize=None, + **labels +): + """Decorator that instruments wrapped function to record real, user and system time + as a prometheus histogram. + + Metrics are recorded as NAME_latency, NAME_cputime{type=user} and NAME_cputime{type=system} + respectively. User and system time are process-wide (which means they'll be largely meaningless + if you're using gevent and the wrapped function blocks) and do not include subprocesses. + + NAME defaults to the wrapped function's name. + NAME must be unique OR have the exact same labels as other timed() calls with that name. + + Any labels passed in are included. Given label values may be callable, in which case + they are passed the input and result from the wrapped function and should return a label value. + Otherwise the given label value is used directly. All label values are automatically str()'d. + + In addition, the "error" label is automatically included, and set to "" if no exception + occurs, or the name of the exception type if one does. + + The normalize argument, if given, causes the creation of a second set of metrics + NAME_normalized_latency, etc. The normalize argument should be a callable which + takes the input and result of the wrapped function and returns a normalization factor. + All normalized metrics divide the observed times by this factor. + The intent is to allow a function which is expected to take longer given a larger input + to be timed on a per-input basis. + As a special case, when normalize returns 0 or None, normalized metrics are not updated. + + The buckets kwarg is as per prometheus_client.Histogram. The default is a conservative + but sparse range covering nanoseconds to hours. + The normalized_buckets kwarg applies to the normalized metrics, and defaults to the same + as buckets. + + All callables that take inputs and result take them as follows: The first arg is the result, + followed by *args and **kwargs as per the function's inputs. + If the wrapped function errored, result is None. + To simplify error handling in these functions, any errors are taken to mean None, + and None is interpreted as '' for label values. + + Contrived Example: + @timed("scanner", + # constant label + foo="my example label", + # label dependent on input + all=lambda results, predicate, list, find_all=False: find_all, + # label dependent on output + found=lambda results, *a, **k: len(found) > 0, + # normalized on input + normalize=lambda results, predicate, list, **k: len(list), + ) + def scanner(predicate, list, find_all=False): + results = [] + for item in list: + if predicate(item): + results.append(item) + if not find_all: + break + return results + """ + + if normalized_buckets is None: + normalized_buckets = buckets + # convert constant (non-callable) values into callables for consistency + labels = { + # need to create then call a function to properly bind v as otherwise it will + # always return the final label value. + k: v if callable(v) else (lambda v: (lambda *a, **k: v))(v) + for k, v in labels.items() + } + + def _timed(fn): + # can't safely assign to name inside closure, we use a new _name variable instead + _name = fn.__name__ if name is None else name + + if _name in metrics: + latency, cputime = metrics[_name] + else: + latency = prom.Histogram( + "{}_latency".format(_name), + "Wall clock time taken to execute {}".format(_name), + list(labels.keys()) + ['error'], + buckets=buckets, + ) + cputime = prom.Histogram( + "{}_cputime".format(_name), + "Process-wide consumed CPU time during execution of {}".format(_name), + list(labels.keys()) + ['error', 'type'], + buckets=buckets, + ) + metrics[_name] = latency, cputime + if normalize: + normname = '{} normalized'.format(_name) + if normname in metrics: + normal_latency, normal_cputime = metrics[normname] + else: + normal_latency = prom.Histogram( + "{}_latency_normalized".format(_name), + "Wall clock time taken to execute {} per unit of work".format(_name), + list(labels.keys()) + ['error'], + buckets=normalized_buckets, + ) + normal_cputime = prom.Histogram( + "{}_cputime_normalized".format(_name), + "Process-wide consumed CPU time during execution of {} per unit of work".format(_name), + list(labels.keys()) + ['error', 'type'], + buckets=normalized_buckets, + ) + metrics[normname] = normal_latency, normal_cputime + + @functools.wraps(fn) + def wrapper(*args, **kwargs): + start_monotonic = monotonic() + start_user, start_sys, _, _, _ = os.times() + + try: + ret = fn(*args, **kwargs) + except Exception as e: + ret = None + error = e + else: + error = None + + end_monotonic = monotonic() + end_user, end_sys, _, _, _ = os.times() + wall_time = end_monotonic - start_monotonic + user_time = end_user - start_user + sys_time = end_sys - start_sys + + label_values = {} + for k, v in labels.items(): + try: + value = v(ret, *args, **kwargs) + except Exception: + value = None + label_values[k] = '' if value is None else str(value) + label_values.update(error='' if error is None else type(error).__name__) + + latency.labels(**label_values).observe(wall_time) + cputime.labels(type='user', **label_values).observe(user_time) + cputime.labels(type='system', **label_values).observe(sys_time) + if normalize: + try: + factor = normalize(ret, *args, **kwargs) + except Exception: + factor = None + if factor is not None and factor > 0: + normal_latency.labels(**label_values).observe(wall_time / factor) + normal_cputime.labels(type='user', **label_values).observe(user_time / factor) + normal_cputime.labels(type='system', **label_values).observe(sys_time / factor) + + if error is None: + return ret + raise error from None # re-raise error with original traceback + + return wrapper + + return _timed + + +log_count = prom.Counter("log_count", "Count of messages logged", ["level", "module", "function"]) + +class PromLogCountsHandler(logging.Handler): + """A logging handler that records a count of logs by level, module and function.""" + def emit(self, record): + log_count.labels(record.levelname, record.module, record.funcName).inc() + + @classmethod + def install(cls): + root_logger = logging.getLogger() + root_logger.addHandler(cls()) + + +def install_stacksampler(interval=0.005): + """Samples the stack every INTERVAL seconds of user time. + We could use user+sys time but that leads to interrupting syscalls, + which may affect performance, and we care mostly about user time anyway. + """ + if os.environ.get('WUBLOADER_ENABLE_STACKSAMPLER', '').lower() != 'true': + return + + logging.info("Installing stacksampler") + + # Note we only start each next timer once the previous timer signal has been processed. + # There are two reasons for this: + # 1. Avoid handling a signal while already handling a signal, however unlikely, + # as this could lead to a deadlock due to locking inside prometheus_client. + # 2. Avoid biasing the results by effectively not including the time taken to do the actual + # stack sampling. + + flamegraph = prom.Counter( + "flamegraph", + "Approx time consumed by each unique stack trace seen by sampling the stack", + ["stack"] + ) + # HACK: It's possible to deadlock if we handle a signal during a prometheus collect + # operation that locks our flamegraph metric. We then try to take the lock when recording the + # metric, but can't. + # As a hacky work around, we replace the lock with a dummy lock that doesn't actually lock anything. + # This is reasonably safe. We know that only one copy of sample() will ever run at once, + # and nothing else but sample() and collect() will touch the metric, leaving two possibilities: + # 1. Multiple collects happen at once: Safe. They only do read operations. + # 2. A sample during a collect: Safe. The collect only does a copy inside the locked part, + # so it just means it'll either get a copy with the new label set, or without it. + # This presumes the implementation doesn't change to make that different, however. + flamegraph._lock = gevent.lock.DummySemaphore() + # There is also a lock we need to bypass on the actual counter values themselves. + # Since they get created dynamically, this means we need to replace the lock function + # that is used to create them. + # This unfortunately means we go without locking for all metrics, not just this one, + # however this is safe because we are using gevent, not threading. The lock is only + # used to make incrementing/decrementing the counter thread-safe, which is not a concern + # under gevent since there are no switch points under the lock. + import prometheus_client.values + prometheus_client.values.Lock = gevent.lock.DummySemaphore + + + def sample(signum, frame): + stack = [] + while frame is not None: + stack.append(frame) + frame = frame.f_back + # format each frame as FUNCTION(MODULE) + stack = ";".join( + "{}({})".format(frame.f_code.co_name, frame.f_globals.get('__name__')) + for frame in stack[::-1] + ) + # increase counter by interval, so final units are in seconds + flamegraph.labels(stack).inc(interval) + # schedule the next signal + signal.setitimer(signal.ITIMER_VIRTUAL, interval) + + def cancel(): + signal.setitimer(signal.ITIMER_VIRTUAL, 0) + atexit.register(cancel) + + signal.signal(signal.SIGVTALRM, sample) + # deliver the first signal in INTERVAL seconds + signal.setitimer(signal.ITIMER_VIRTUAL, interval) diff --git a/buscribe/common/setup.py b/buscribe/common/setup.py new file mode 100644 index 0000000..ae2a724 --- /dev/null +++ b/buscribe/common/setup.py @@ -0,0 +1,12 @@ +from setuptools import setup, find_packages + +setup( + name = "wubloader-common", + version = "0.0.0", + packages = find_packages(), + install_requires = [ + "gevent", + "monotonic", + "prometheus-client", + ], +) diff --git a/buscribe/docker-compose.yml b/buscribe/docker-compose.yml new file mode 100644 index 0000000..d76cb35 --- /dev/null +++ b/buscribe/docker-compose.yml @@ -0,0 +1,130 @@ +version: "3" +services: + buscribenginx: + image: buscribe-web:0.0.0 + ports: + - "8020:80" + volumes: + - /srv/wubloader/segments:/usr/share/nginx/html/segments + networks: + - default + - wubloader_default + - traefik_network + labels: + - "traefik.docker.network=traefik_network" + - "traefik.http.routers.buscribe-router.rule=Host(`wubloader.raptorpond.com`)" + - "traefik.http.routers.buscribe-redirect.rule=Host(`wubloader.raptorpond.com`)" + - "traefik.http.routers.buscribe-redirect.entrypoints=web" + - "traefik.http.routers.buscribe-router.tls=true" + - "traefik.http.routers.buscribe-router.tls.certresolver=leresolver" + - "traefik.http.middlewares.buscribe-redirectscheme.redirectscheme.scheme=https" + - "traefik.http.middlewares.buscribe-redirectscheme.redirectscheme.permanent=true" + - "traefik.http.routers.buscribe-redirect.middlewares=buscribe-redirectscheme@docker" + restart: "on-failure" + + # buscribelrr: + # image: buscribe:0.0.0 + # command: [ "loadingreadyrun", + # "--start-time=2022-11-11T12:00:00Z", + # "--end-time=2022-11-20T22:00:00Z", + # "--database=postgresql://vst:flnMSYPRf@postgres:5432/buscribe_lrr", + # "--model=/usr/share/buscribe/vosk-model-en-us-0.22/" ] + # volumes: + # - /srv/wubloader/segments:/mnt + + # buscribedb: + # image: buscribe:0.0.0 + # command: [ "desertbus", + # "--start-time=2023-11-10T12:00:00Z", + # "--end-time=2023-11-15T00:00:00Z", + # "--database=postgresql://vst:flnMSYPRf@postgres:5432/buscribe_db", + # "--model=/usr/share/buscribe/vosk-model-en-us-0.22/" ] + # volumes: + # - /srv/wubloader/segments:/mnt + + buscribedb0: + image: buscribe:0.0.0 + command: [ "desertbus", + "--start-time-override=2023-11-19T00:00:00Z", + "--end-time=2023-11-19T06:00:00Z", + "--database=postgresql://vst:flnMSYPRf@postgres:5432/buscribe_db", + "--model=/usr/share/buscribe/vosk-model-en-us-0.22/" ] + volumes: + - /srv/wubloader/segments:/mnt + + buscribedb1: + image: buscribe:0.0.0 + command: [ "desertbus", + "--start-time-override=2023-11-18T06:00:00Z", + "--end-time=2023-11-18T12:00:00Z", + "--database=postgresql://vst:flnMSYPRf@postgres:5432/buscribe_db", + "--model=/usr/share/buscribe/vosk-model-en-us-0.22/" ] + volumes: + - /srv/wubloader/segments:/mnt + + buscribedb2: + image: buscribe:0.0.0 + command: [ "desertbus", + "--start-time-override=2023-11-18T12:00:00Z", + "--end-time=2023-11-18T18:00:00Z", + "--database=postgresql://vst:flnMSYPRf@postgres:5432/buscribe_db", + "--model=/usr/share/buscribe/vosk-model-en-us-0.22/" ] + volumes: + - /srv/wubloader/segments:/mnt + + buscribedb3: + image: buscribe:0.0.0 + command: [ "desertbus", + "--start-time-override=2023-11-18T18:00:00Z", + "--end-time=2023-11-19T00:00:00Z", + "--database=postgresql://vst:flnMSYPRf@postgres:5432/buscribe_db", + "--model=/usr/share/buscribe/vosk-model-en-us-0.22/" ] + volumes: + - /srv/wubloader/segments:/mnt + + # buscribeapilrr: + # image: buscribe-api:0.0.0 + # command: [ + # "loadingreadyrun", + # "--database=postgresql://vst:flnMSYPRf@postgres:5432/buscribe_lrr", + # "--bustime-start=2023-11-11T22:00:00Z" ] + + buscribeapidb: + image: buscribe-api:0.0.0 + command: [ + "desertbus", + "--database=postgresql://vst:flnMSYPRf@postgres:5432/buscribe_db", + "--bustime-start=2023-11-11T22:00:00Z" ] + volumes: + - /srv/wubloader/segments:/mnt + + professorapidb: + image: professor-api:0.0.0 + command: [ + "--database=postgresql://vst:flnMSYPRf@postgres:5432/buscribe_db", + "--bustime-start=2023-11-11T22:00:00Z" ] + + postgres: + image: postgres:13 + ports: + - "7654:5432" + environment: + - POSTGRES_USER=vst + - POSTGRES_DB=postgres + - POSTGRES_PASSWORD=flnMSYPRf + volumes: + - /srv/buscribe/postgres:/var/lib/postgresql/data + restart: "unless-stopped" + + postgres-prometheus: + image: quay.io/prometheuscommunity/postgres-exporter + ports: + - "9187:9187" + environment: + - DATA_SOURCE_NAME=postgresql://vst:flnMSYPRf@postgres:5432/buscribe_lrr?sslmode=disable + +networks: + wubloader_default: + external: true + traefik_network: + external: true diff --git a/buscribe/docker-less/Dockerfile b/buscribe/docker-less/Dockerfile new file mode 100644 index 0000000..1faf894 --- /dev/null +++ b/buscribe/docker-less/Dockerfile @@ -0,0 +1,5 @@ +FROM node:17-alpine + +RUN npm install less -g + +ENTRYPOINT ["lessc"] \ No newline at end of file diff --git a/buscribe/fetch_models.sh b/buscribe/fetch_models.sh new file mode 100644 index 0000000..c913d39 --- /dev/null +++ b/buscribe/fetch_models.sh @@ -0,0 +1,11 @@ +#!/bin/bash + +mkdir models && cd models || exit +curl -LO http://alphacephei.com/vosk/models/vosk-model-en-us-0.22.zip +curl -LO http://alphacephei.com/vosk/models/vosk-model-small-en-us-0.15.zip +curl -LO https://alphacephei.com/vosk/models/vosk-model-spk-0.4.zip + +mkdir extracted +unzip vosk-model-en-us-0.22.zip -d extracted +unzip vosk-model-small-en-us-0.15.zip -d extracted +unzip vosk-model-spk-0.4.zip -d extracted diff --git a/buscribe/nginx/Dockerfile b/buscribe/nginx/Dockerfile new file mode 100644 index 0000000..5e167c8 --- /dev/null +++ b/buscribe/nginx/Dockerfile @@ -0,0 +1,5 @@ +FROM nginx:latest + +COPY buscribe-web /usr/share/nginx/html/buscribe +COPY professor /usr/share/nginx/html/professor +COPY nginx/nginx.conf /etc/nginx/nginx.conf \ No newline at end of file diff --git a/buscribe/nginx/nginx.conf b/buscribe/nginx/nginx.conf new file mode 100644 index 0000000..178b6e3 --- /dev/null +++ b/buscribe/nginx/nginx.conf @@ -0,0 +1,57 @@ + +user nginx; +worker_processes auto; + +error_log /var/log/nginx/error.log notice; +pid /var/run/nginx.pid; + + +events { + worker_connections 1024; +} + + +http { + include /etc/nginx/mime.types; + default_type application/octet-stream; + + log_format main '$remote_addr - $remote_user [$time_local] "$request" ' + '$status $body_bytes_sent "$http_referer" ' + '"$http_user_agent" "$http_x_forwarded_for"'; + + access_log /var/log/nginx/access.log main; + + sendfile on; + #tcp_nopush on; + + keepalive_timeout 65; + + gzip on; + gzip_comp_level 9; + + absolute_redirect off; + + server { + listen 80; + server_name localhost; + + + #access_log /var/log/nginx/host.access.log main; + + location / { proxy_pass http://nginx; } + location /buscribelrr { + alias /usr/share/nginx/html/buscribe; + } + location /buscribe { + alias /usr/share/nginx/html/buscribe; + } + location /professor { + alias /usr/share/nginx/html/professor; + } + + #location /buscribe/loadingreadyrun/json { proxy_pass http://buscribeapilrr:8010/buscribe/json; } + location /buscribe/desertbus/json { proxy_pass http://buscribeapidb:8010/buscribe/json; } + location /professor/desertbus { proxy_pass http://professorapidb:8011/professor; } + } + +} diff --git a/buscribe/professor-api/Dockerfile b/buscribe/professor-api/Dockerfile new file mode 100644 index 0000000..92de004 --- /dev/null +++ b/buscribe/professor-api/Dockerfile @@ -0,0 +1,18 @@ +FROM alpine:3.14 +# dependencies needed for compiling c extensions +# also busybox-extras for telnet for easier use of backdoor +RUN apk --update add py3-pip g++ python3-dev libffi-dev musl-dev postgresql-dev file make busybox-extras + +# Install gevent so that we don't need to re-install it when common changes +RUN pip install gevent + +# Install common lib first as it changes less +COPY common /tmp/common +RUN pip install /tmp/common && rm -r /tmp/common + +# Install actual application +RUN apk add postgresql-dev postgresql-libs +COPY professor-api /tmp/professor-api +RUN pip install /tmp/professor-api && rm -r /tmp/professor-api + +ENTRYPOINT ["python3", "-m", "professor_api"] diff --git a/buscribe/professor-api/professor_api/__init__.py b/buscribe/professor-api/professor_api/__init__.py new file mode 100644 index 0000000..e69de29 diff --git a/buscribe/professor-api/professor_api/__main__.py b/buscribe/professor-api/professor_api/__main__.py new file mode 100644 index 0000000..2c2027c --- /dev/null +++ b/buscribe/professor-api/professor_api/__main__.py @@ -0,0 +1,15 @@ +from gevent import monkey +monkey.patch_all() + +import logging +import os + +import argh + +from professor_api.main import main + +LOG_FORMAT = "[%(asctime)s] %(levelname)8s %(name)s(%(module)s:%(lineno)d): %(message)s" + +level = os.environ.get('WUBLOADER_LOG_LEVEL', 'INFO').upper() +logging.basicConfig(level=level, format=LOG_FORMAT) +argh.dispatch_command(main) diff --git a/buscribe/professor-api/professor_api/main.py b/buscribe/professor-api/professor_api/main.py new file mode 100644 index 0000000..3e572d5 --- /dev/null +++ b/buscribe/professor-api/professor_api/main.py @@ -0,0 +1,79 @@ +import logging + +import argh +import gevent +from common import dateutil +from common.database import DBManager +from dateutil.parser import ParserError +from gevent.pywsgi import WSGIServer + +from professor_api.professor_api import app + + +def cors(app): + """WSGI middleware that sets CORS headers""" + HEADERS = [ + ("Access-Control-Allow-Credentials", "true"), + ("Access-Control-Allow-Headers", "content-type"), + ("Access-Control-Allow-Methods", "GET,HEAD,POST,PUT"), + ("Access-Control-Allow-Origin", "http://localhost:63342,https://wubloader.raptorpond.com"), + ("Access-Control-Expose-Headers", "*"), + ("Access-Control-Max-Age", "86400"), + ] + + def handle(environ, start_response): + def _start_response(status, headers, exc_info=None): + headers += HEADERS + return start_response(status, headers, exc_info) + + return app(environ, _start_response) + + return handle + + +def servelet(server): + logging.info('Starting WSGI server.') + server.serve_forever() + + +@argh.arg('--host', + help='Address or socket server will listen to. Default is 0.0.0.0 (everything on the local machine).') +@argh.arg('--port', + help='Port server will listen on. Default is 8004.') +@argh.arg('--database', + help='Postgres connection string, which is either a space-separated list of key=value pairs, or a URI like: ' + 'postgresql://USER:PASSWORD@HOST/DBNAME?KEY=VALUE') +@argh.arg('--bustime-start', + help='The start time in UTC for the event, for UTC-Bustime conversion') +def main(database="", host='0.0.0.0', port=8011, bustime_start=None): + if bustime_start is None: + logging.error("Missing --bustime-start!") + exit(1) + + server = WSGIServer((host, port), cors(app)) + + try: + app.bustime_start = dateutil.parse(bustime_start) + except ParserError: + logging.error("Invalid --bustime-start!") + exit(1) + + app.db_manager = DBManager(dsn=database) + + stopping = gevent.event.Event() + + def stop(): + logging.info("Shutting down") + stopping.set() + + gevent.signal_handler(gevent.signal.SIGTERM, stop) + + serve = gevent.spawn(servelet, server) + + # Wait for either the stop signal or the server to oops out. + gevent.wait([serve, stopping], count=1) + + server.stop() + serve.get() # Wait for server to shut down and/or re-raise if serve_forever() errored + + logging.info("Gracefully shut down") diff --git a/buscribe/professor-api/professor_api/professor_api.py b/buscribe/professor-api/professor_api/professor_api.py new file mode 100644 index 0000000..f9da80c --- /dev/null +++ b/buscribe/professor-api/professor_api/professor_api.py @@ -0,0 +1,185 @@ +import re +import urllib.parse +from functools import wraps +from random import randrange + +import flask +import gevent +from common import database +from flask import jsonify, request, copy_current_request_context +from gevent import sleep +from psycopg2.extras import execute_values + +from google.oauth2 import id_token +from google.auth.transport import requests + +app = flask.Flask('buscribe') + + +def authenticate(f): + """Authenticate a token against the database. + + Reference: https://developers.google.com/identity/sign-in/web/backend-auth + https://developers.google.com/identity/gsi/web/guides/verify-google-id-token#using-a-google-api-client-library""" + + @wraps(f) + def auth_wrapper(*args, **kwargs): + + try: + user_token = request.cookies.get("credentials") + print(user_token) + except (KeyError, TypeError): + return 'User token required', 401 + + try: + idinfo = id_token.verify_oauth2_token(user_token, requests.Request(), + "164084252563-kaks3no7muqb82suvbubg7r0o87aip7n.apps.googleusercontent.com") + if idinfo['iss'] not in ['accounts.google.com', 'https://accounts.google.com']: + raise ValueError('Wrong issuer.') + except ValueError: + return 'Invalid token. Access denied.', 403 + + # check whether user is in the database + email = idinfo['email'].lower() + conn = app.db_manager.get_conn() + results = database.query(conn, """ + SELECT email + FROM buscribe_verifiers + WHERE lower(email) = %s""", email) + row = results.fetchone() + if row is None: + return 'Unknown user. Access denied.', 403 + + return f(*args, editor=email, **kwargs) + + return auth_wrapper + + +@app.route('/professor/line/', methods=["GET"]) +def get_line(line_id): + db_conn = app.db_manager.get_conn() + + line = database.query(db_conn, "SELECT * FROM buscribe_transcriptions WHERE id = %(id)s;", id=line_id).fetchone() + + if line is None: + return "Line not found.", 404 + else: + return {"id": line.id, + "start_time": line.start_time.isoformat(), + "end_time": line.end_time.isoformat(), + "line_data": line.transcription_json} + + +@app.route('/professor/line/random', methods=["GET"]) +def get_random_line(): + db_conn = app.db_manager.get_conn() + + n_lines = database.query(db_conn, "SELECT count(*) AS n_lines FROM buscribe_transcriptions;").fetchone().n_lines + + row = randrange(n_lines) + + line = database.query(db_conn, "SELECT * FROM buscribe_transcriptions OFFSET %(row)s LIMIT 1;", row=row).fetchone() + + if line is None: + return "Line not found.", 404 + else: + return {"id": line.id, + "start_time": line.start_time.isoformat(), + "end_time": line.end_time.isoformat(), + "line_data": line.transcription_json} + + +@app.route('/professor/line//playlist.m3u8', methods=["GET"]) +def get_playlist(line_id): + db_conn = app.db_manager.get_conn() + + line = database.query(db_conn, "SELECT * FROM buscribe_transcriptions WHERE id = %(id)s;", id=line_id).fetchone() + + if line is None: + return "Line not found.", 404 + else: + start_time_iso = line.start_time.isoformat() + end_time_iso = line.end_time.isoformat() + duration = line.end_time - line.start_time + return f"""#EXTM3U +#EXT-X-PLAYLIST-TYPE:vod +#EXT-X-TARGETDURATION:{duration.total_seconds()} +#EXT-X-PROGRAM-DATE-TIME:{start_time_iso} +#EXTINF:{duration.total_seconds()} +/cut/desertbus/source.ts?start={urllib.parse.quote_plus(start_time_iso)}&end={urllib.parse.quote_plus(end_time_iso)}&type=rough&allow_holes=true +#EXT-X-ENDLIST""" + + +@app.route('/professor/line/', methods=["POST"]) +@authenticate +def update_line(line_id, editor): + db_conn = app.db_manager.get_conn() + + if "speakers" in request.json and \ + isinstance(request.json["speakers"], list) and \ + request.json["speakers"] != []: + # Simpler than dealing with uniqueness + database.query(db_conn, + "DELETE FROM buscribe_line_speakers WHERE line = %(line_id)s AND verifier = %(verifier)s;", + line_id=line_id, verifier=editor) + execute_values(db_conn.cursor(), + "INSERT INTO buscribe_line_speakers(line, speaker, verifier) " + "VALUES %s;", + [(line_id, speaker, editor) for speaker in + request.json["speakers"]]) + if "transcription" in request.json and \ + isinstance(request.json["transcription"], str) and \ + request.json["transcription"] != "": + verified_line = request.json["transcription"].lower() + verified_line = re.sub(r"[^[a-z]\s']]", "", verified_line) + + database.query(db_conn, + "DELETE FROM buscribe_verified_lines WHERE line = %(line_id)s AND verifier = %(verifier)s;", + line_id=line_id, verifier=editor) + database.query(db_conn, + "INSERT INTO buscribe_verified_lines(line, verified_line, verifier) " + "VALUES (%(line)s, %(verified_line)s, %(verifier)s)", + line=line_id, verified_line=verified_line, verifier=editor) + + return "", 204 + + +@app.route('/professor/speaker', methods=["GET"]) +def get_speakers(): + db_conn = app.db_manager.get_conn() + + speakers = database.query(db_conn, "SELECT id, name FROM buscribe_speakers;") + + return jsonify([{"id": speaker.id, "name": speaker.name} for speaker in speakers]) + + +@app.route('/professor/speaker/', methods=["GET"]) +def get_speaker(speaker_id): + db_conn = app.db_manager.get_conn() + + speaker = database.query(db_conn, "SELECT name FROM buscribe_speakers WHERE id = %(id)s;", id=speaker_id).fetchone() + + if speaker is None: + return "Speaker not found.", 404 + else: + return jsonify(speaker.name) + + +@app.route('/professor/speaker', methods=["PUT"]) +@authenticate +def new_speaker(editor=None): + name = request.json + + if not isinstance(name, str): + return "Invalid name!", 400 + + name = name.lower() + name = re.sub(r"[^\w\s']", "", name) + db_conn = app.db_manager.get_conn() + + speakers = database.query(db_conn, "INSERT INTO buscribe_speakers(name) " + "VALUES (%(name)s) " + "ON CONFLICT (name) DO UPDATE SET name=EXCLUDED.name " + "RETURNING id;", name=name) + + return "", 200, {"Content-Location": f"/professor/speaker/{speakers.fetchone().id}"} diff --git a/buscribe/professor-api/setup.py b/buscribe/professor-api/setup.py new file mode 100644 index 0000000..1cc19d8 --- /dev/null +++ b/buscribe/professor-api/setup.py @@ -0,0 +1,17 @@ +from setuptools import setup, find_packages + +setup( + name = "wubloader-professor-api", + version = "0.0.0", + packages = find_packages(), + install_requires = [ + "argh", + "psycopg2", + "gevent", + "psycogreen", + "wubloader-common", + "python-dateutil", + "flask", + "google-auth" + ], +) diff --git a/buscribe/professor/constants.less b/buscribe/professor/constants.less new file mode 100644 index 0000000..ff0edd1 --- /dev/null +++ b/buscribe/professor/constants.less @@ -0,0 +1,2 @@ +@sans-serif: Tahoma, sans-serif; +@serif: Georgia, Garamond, serif; \ No newline at end of file diff --git a/buscribe/professor/hotkeys.min.js b/buscribe/professor/hotkeys.min.js new file mode 100644 index 0000000..4453fe2 --- /dev/null +++ b/buscribe/professor/hotkeys.min.js @@ -0,0 +1,2 @@ +/*! hotkeys-js v3.8.7 | MIT (c) 2021 kenny wong | http://jaywcjlove.github.io/hotkeys */ +!function(e,t){"object"==typeof exports&&"undefined"!=typeof module?module.exports=t():"function"==typeof define&&define.amd?define(t):(e="undefined"!=typeof globalThis?globalThis:e||self).hotkeys=t()}(this,function(){"use strict";var e="undefined"!=typeof navigator&&0 +Richard Worth +Yehuda Katz +Sean Catchpole +John Resig +Tane Piper +Dmitri Gaskin +Klaus Hartl +Stefan Petre +Gilles van den Hoven +Micheil Bryan Smith +Jörn Zaefferer +Marc Grabanski +Keith Wood +Brandon Aaron +Scott González +Eduardo Lundgren +Aaron Eisenberger +Joan Piedra +Bruno Basto +Remy Sharp +Bohdan Ganicky +David Bolter +Chi Cheng +Ca-Phun Ung +Ariel Flesler +Maggie Wachs +Scott Jehl +Todd Parker +Andrew Powell +Brant Burnett +Douglas Neiner +Paul Irish +Ralph Whitbeck +Thibault Duplessis +Dominique Vincent +Jack Hsu +Adam Sontag +Carl Fürstenberg +Kevin Dalman +Alberto Fernández Capel +Jacek Jędrzejewski (http://jacek.jedrzejewski.name) +Ting Kuei +Samuel Cormier-Iijima +Jon Palmer +Ben Hollis +Justin MacCarthy +Eyal Kobrigo +Tiago Freire +Diego Tres +Holger Rüprich +Ziling Zhao +Mike Alsup +Robson Braga Araujo +Pierre-Henri Ausseil +Christopher McCulloh +Andrew Newcomb +Lim Chee Aun +Jorge Barreiro +Daniel Steigerwald +John Firebaugh +John Enters +Andrey Kapitcyn +Dmitry Petrov +Eric Hynds +Chairat Sunthornwiphat +Josh Varner +Stéphane Raimbault +Jay Merrifield +J. 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Wells +Robert Brignull +Horus68 +Maksymenkov Eugene +OskarNS +Gez Quinn +jigar gala +Florian Wegscheider +Fatér Zsolt +Szabolcs Szabolcsi-Toth +Jérémy Munsch +Hrvoje Novosel +Paul Capron +Micah Miller +sakshi87 <53863764+sakshi87@users.noreply.github.com> +Mikolaj Wolicki +Patrick McKay +c-lambert <58025159+c-lambert@users.noreply.github.com> diff --git a/buscribe/professor/jquery-ui-1.13.0.custom/LICENSE.txt b/buscribe/professor/jquery-ui-1.13.0.custom/LICENSE.txt new file mode 100644 index 0000000..4819e54 --- /dev/null +++ b/buscribe/professor/jquery-ui-1.13.0.custom/LICENSE.txt @@ -0,0 +1,43 @@ +Copyright jQuery Foundation and other contributors, https://jquery.org/ + +This software consists of voluntary contributions made by many +individuals. For exact contribution history, see the revision history +available at https://github.com/jquery/jquery-ui + +The following license applies to all parts of this software except as +documented below: + +==== + +Permission is hereby granted, free of charge, to any person obtaining +a copy of this software and associated documentation files (the +"Software"), to deal in the Software without restriction, including +without limitation the rights to use, copy, modify, merge, publish, +distribute, sublicense, and/or sell copies of the Software, and to +permit persons to whom the Software is furnished to do so, subject to +the following conditions: + +The above copyright notice and this permission notice shall be +included in all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, +EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND +NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE +LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION +OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION +WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + +==== + +Copyright and related rights for sample code are waived via CC0. Sample +code is defined as all source code contained within the demos directory. + +CC0: http://creativecommons.org/publicdomain/zero/1.0/ + +==== + +All files located in the node_modules and external directories are +externally maintained libraries used by this software which have their +own licenses; we recommend you read them, as their terms may differ from +the terms above. diff --git a/buscribe/professor/jquery-ui-1.13.0.custom/external/jquery/jquery.js b/buscribe/professor/jquery-ui-1.13.0.custom/external/jquery/jquery.js new file mode 100644 index 0000000..fc6c299 --- /dev/null +++ b/buscribe/professor/jquery-ui-1.13.0.custom/external/jquery/jquery.js @@ -0,0 +1,10881 @@ +/*! + * jQuery JavaScript Library v3.6.0 + * https://jquery.com/ + * + * Includes Sizzle.js + * https://sizzlejs.com/ + * + * Copyright OpenJS Foundation and other contributors + * Released under the MIT license + * https://jquery.org/license + * + * Date: 2021-03-02T17:08Z + */ +( function( global, factory ) { + + "use strict"; + + if ( typeof module === "object" && typeof module.exports === "object" ) { + + // For CommonJS and CommonJS-like environments where a proper `window` + // is present, execute the factory and get jQuery. + // For environments that do not have a `window` with a `document` + // (such as Node.js), expose a factory as module.exports. + // This accentuates the need for the creation of a real `window`. + // e.g. var jQuery = require("jquery")(window); + // See ticket #14549 for more info. + module.exports = global.document ? + factory( global, true ) : + function( w ) { + if ( !w.document ) { + throw new Error( "jQuery requires a window with a document" ); + } + return factory( w ); + }; + } else { + factory( global ); + } + +// Pass this if window is not defined yet +} )( typeof window !== "undefined" ? window : this, function( window, noGlobal ) { + +// Edge <= 12 - 13+, Firefox <=18 - 45+, IE 10 - 11, Safari 5.1 - 9+, iOS 6 - 9.1 +// throw exceptions when non-strict code (e.g., ASP.NET 4.5) accesses strict mode +// arguments.callee.caller (trac-13335). But as of jQuery 3.0 (2016), strict mode should be common +// enough that all such attempts are guarded in a try block. +"use strict"; + +var arr = []; + +var getProto = Object.getPrototypeOf; + +var slice = arr.slice; + +var flat = arr.flat ? function( array ) { + return arr.flat.call( array ); +} : function( array ) { + return arr.concat.apply( [], array ); +}; + + +var push = arr.push; + +var indexOf = arr.indexOf; + +var class2type = {}; + +var toString = class2type.toString; + +var hasOwn = class2type.hasOwnProperty; + +var fnToString = hasOwn.toString; + +var ObjectFunctionString = fnToString.call( Object ); + +var support = {}; + +var isFunction = function isFunction( obj ) { + + // Support: Chrome <=57, Firefox <=52 + // In some browsers, typeof returns "function" for HTML elements + // (i.e., `typeof document.createElement( "object" ) === "function"`). + // We don't want to classify *any* DOM node as a function. + // Support: QtWeb <=3.8.5, WebKit <=534.34, wkhtmltopdf tool <=0.12.5 + // Plus for old WebKit, typeof returns "function" for HTML collections + // (e.g., `typeof document.getElementsByTagName("div") === "function"`). (gh-4756) + return typeof obj === "function" && typeof obj.nodeType !== "number" && + typeof obj.item !== "function"; + }; + + +var isWindow = function isWindow( obj ) { + return obj != null && obj === obj.window; + }; + + +var document = window.document; + + + + var preservedScriptAttributes = { + type: true, + src: true, + nonce: true, + noModule: true + }; + + function DOMEval( code, node, doc ) { + doc = doc || document; + + var i, val, + script = doc.createElement( "script" ); + + script.text = code; + if ( node ) { + for ( i in preservedScriptAttributes ) { + + // Support: Firefox 64+, Edge 18+ + // Some browsers don't support the "nonce" property on scripts. + // On the other hand, just using `getAttribute` is not enough as + // the `nonce` attribute is reset to an empty string whenever it + // becomes browsing-context connected. + // See https://github.com/whatwg/html/issues/2369 + // See https://html.spec.whatwg.org/#nonce-attributes + // The `node.getAttribute` check was added for the sake of + // `jQuery.globalEval` so that it can fake a nonce-containing node + // via an object. + val = node[ i ] || node.getAttribute && node.getAttribute( i ); + if ( val ) { + script.setAttribute( i, val ); + } + } + } + doc.head.appendChild( script ).parentNode.removeChild( script ); + } + + +function toType( obj ) { + if ( obj == null ) { + return obj + ""; + } + + // Support: Android <=2.3 only (functionish RegExp) + return typeof obj === "object" || typeof obj === "function" ? + class2type[ toString.call( obj ) ] || "object" : + typeof obj; +} +/* global Symbol */ +// Defining this global in .eslintrc.json would create a danger of using the global +// unguarded in another place, it seems safer to define global only for this module + + + +var + version = "3.6.0", + + // Define a local copy of jQuery + jQuery = function( selector, context ) { + + // The jQuery object is actually just the init constructor 'enhanced' + // Need init if jQuery is called (just allow error to be thrown if not included) + return new jQuery.fn.init( selector, context ); + }; + +jQuery.fn = jQuery.prototype = { + + // The current version of jQuery being used + jquery: version, + + constructor: jQuery, + + // The default length of a jQuery object is 0 + length: 0, + + toArray: function() { + return slice.call( this ); + }, + + // Get the Nth element in the matched element set OR + // Get the whole matched element set as a clean array + get: function( num ) { + + // Return all the elements in a clean array + if ( num == null ) { + return slice.call( this ); + } + + // Return just the one element from the set + return num < 0 ? this[ num + this.length ] : this[ num ]; + }, + + // Take an array of elements and push it onto the stack + // (returning the new matched element set) + pushStack: function( elems ) { + + // Build a new jQuery matched element set + var ret = jQuery.merge( this.constructor(), elems ); + + // Add the old object onto the stack (as a reference) + ret.prevObject = this; + + // Return the newly-formed element set + return ret; + }, + + // Execute a callback for every element in the matched set. + each: function( callback ) { + return jQuery.each( this, callback ); + }, + + map: function( callback ) { + return this.pushStack( jQuery.map( this, function( elem, i ) { + return callback.call( elem, i, elem ); + } ) ); + }, + + slice: function() { + return this.pushStack( slice.apply( this, arguments ) ); + }, + + first: function() { + return this.eq( 0 ); + }, + + last: function() { + return this.eq( -1 ); + }, + + even: function() { + return this.pushStack( jQuery.grep( this, function( _elem, i ) { + return ( i + 1 ) % 2; + } ) ); + }, + + odd: function() { + return this.pushStack( jQuery.grep( this, function( _elem, i ) { + return i % 2; + } ) ); + }, + + eq: function( i ) { + var len = this.length, + j = +i + ( i < 0 ? len : 0 ); + return this.pushStack( j >= 0 && j < len ? [ this[ j ] ] : [] ); + }, + + end: function() { + return this.prevObject || this.constructor(); + }, + + // For internal use only. + // Behaves like an Array's method, not like a jQuery method. + push: push, + sort: arr.sort, + splice: arr.splice +}; + +jQuery.extend = jQuery.fn.extend = function() { + var options, name, src, copy, copyIsArray, clone, + target = arguments[ 0 ] || {}, + i = 1, + length = arguments.length, + deep = false; + + // Handle a deep copy situation + if ( typeof target === "boolean" ) { + deep = target; + + // Skip the boolean and the target + target = arguments[ i ] || {}; + i++; + } + + // Handle case when target is a string or something (possible in deep copy) + if ( typeof target !== "object" && !isFunction( target ) ) { + target = {}; + } + + // Extend jQuery itself if only one argument is passed + if ( i === length ) { + target = this; + i--; + } + + for ( ; i < length; i++ ) { + + // Only deal with non-null/undefined values + if ( ( options = arguments[ i ] ) != null ) { + + // Extend the base object + for ( name in options ) { + copy = options[ name ]; + + // Prevent Object.prototype pollution + // Prevent never-ending loop + if ( name === "__proto__" || target === copy ) { + continue; + } + + // Recurse if we're merging plain objects or arrays + if ( deep && copy && ( jQuery.isPlainObject( copy ) || + ( copyIsArray = Array.isArray( copy ) ) ) ) { + src = target[ name ]; + + // Ensure proper type for the source value + if ( copyIsArray && !Array.isArray( src ) ) { + clone = []; + } else if ( !copyIsArray && !jQuery.isPlainObject( src ) ) { + clone = {}; + } else { + clone = src; + } + copyIsArray = false; + + // Never move original objects, clone them + target[ name ] = jQuery.extend( deep, clone, copy ); + + // Don't bring in undefined values + } else if ( copy !== undefined ) { + target[ name ] = copy; + } + } + } + } + + // Return the modified object + return target; +}; + +jQuery.extend( { + + // Unique for each copy of jQuery on the page + expando: "jQuery" + ( version + Math.random() ).replace( /\D/g, "" ), + + // Assume jQuery is ready without the ready module + isReady: true, + + error: function( msg ) { + throw new Error( msg ); + }, + + noop: function() {}, + + isPlainObject: function( obj ) { + var proto, Ctor; + + // Detect obvious negatives + // Use toString instead of jQuery.type to catch host objects + if ( !obj || toString.call( obj ) !== "[object Object]" ) { + return false; + } + + proto = getProto( obj ); + + // Objects with no prototype (e.g., `Object.create( null )`) are plain + if ( !proto ) { + return true; + } + + // Objects with prototype are plain iff they were constructed by a global Object function + Ctor = hasOwn.call( proto, "constructor" ) && proto.constructor; + return typeof Ctor === "function" && fnToString.call( Ctor ) === ObjectFunctionString; + }, + + isEmptyObject: function( obj ) { + var name; + + for ( name in obj ) { + return false; + } + return true; + }, + + // Evaluates a script in a provided context; falls back to the global one + // if not specified. + globalEval: function( code, options, doc ) { + DOMEval( code, { nonce: options && options.nonce }, doc ); + }, + + each: function( obj, callback ) { + var length, i = 0; + + if ( isArrayLike( obj ) ) { + length = obj.length; + for ( ; i < length; i++ ) { + if ( callback.call( obj[ i ], i, obj[ i ] ) === false ) { + break; + } + } + } else { + for ( i in obj ) { + if ( callback.call( obj[ i ], i, obj[ i ] ) === false ) { + break; + } + } + } + + return obj; + }, + + // results is for internal usage only + makeArray: function( arr, results ) { + var ret = results || []; + + if ( arr != null ) { + if ( isArrayLike( Object( arr ) ) ) { + jQuery.merge( ret, + typeof arr === "string" ? + [ arr ] : arr + ); + } else { + push.call( ret, arr ); + } + } + + return ret; + }, + + inArray: function( elem, arr, i ) { + return arr == null ? -1 : indexOf.call( arr, elem, i ); + }, + + // Support: Android <=4.0 only, PhantomJS 1 only + // push.apply(_, arraylike) throws on ancient WebKit + merge: function( first, second ) { + var len = +second.length, + j = 0, + i = first.length; + + for ( ; j < len; j++ ) { + first[ i++ ] = second[ j ]; + } + + first.length = i; + + return first; + }, + + grep: function( elems, callback, invert ) { + var callbackInverse, + matches = [], + i = 0, + length = elems.length, + callbackExpect = !invert; + + // Go through the array, only saving the items + // that pass the validator function + for ( ; i < length; i++ ) { + callbackInverse = !callback( elems[ i ], i ); + if ( callbackInverse !== callbackExpect ) { + matches.push( elems[ i ] ); + } + } + + return matches; + }, + + // arg is for internal usage only + map: function( elems, callback, arg ) { + var length, value, + i = 0, + ret = []; + + // Go through the array, translating each of the items to their new values + if ( isArrayLike( elems ) ) { + length = elems.length; + for ( ; i < length; i++ ) { + value = callback( elems[ i ], i, arg ); + + if ( value != null ) { + ret.push( value ); + } + } + + // Go through every key on the object, + } else { + for ( i in elems ) { + value = callback( elems[ i ], i, arg ); + + if ( value != null ) { + ret.push( value ); + } + } + } + + // Flatten any nested arrays + return flat( ret ); + }, + + // A global GUID counter for objects + guid: 1, + + // jQuery.support is not used in Core but other projects attach their + // properties to it so it needs to exist. + support: support +} ); + +if ( typeof Symbol === "function" ) { + jQuery.fn[ Symbol.iterator ] = arr[ Symbol.iterator ]; +} + +// Populate the class2type map +jQuery.each( "Boolean Number String Function Array Date RegExp Object Error Symbol".split( " " ), + function( _i, name ) { + class2type[ "[object " + name + "]" ] = name.toLowerCase(); + } ); + +function isArrayLike( obj ) { + + // Support: real iOS 8.2 only (not reproducible in simulator) + // `in` check used to prevent JIT error (gh-2145) + // hasOwn isn't used here due to false negatives + // regarding Nodelist length in IE + var length = !!obj && "length" in obj && obj.length, + type = toType( obj ); + + if ( isFunction( obj ) || isWindow( obj ) ) { + return false; + } + + return type === "array" || length === 0 || + typeof length === "number" && length > 0 && ( length - 1 ) in obj; +} +var Sizzle = +/*! + * Sizzle CSS Selector Engine v2.3.6 + * https://sizzlejs.com/ + * + * Copyright JS Foundation and other contributors + * Released under the MIT license + * https://js.foundation/ + * + * Date: 2021-02-16 + */ +( function( window ) { +var i, + support, + Expr, + getText, + isXML, + tokenize, + compile, + select, + outermostContext, + sortInput, + hasDuplicate, + + // Local document vars + setDocument, + document, + docElem, + documentIsHTML, + rbuggyQSA, + rbuggyMatches, + matches, + contains, + + // Instance-specific data + expando = "sizzle" + 1 * new Date(), + preferredDoc = window.document, + dirruns = 0, + done = 0, + classCache = createCache(), + tokenCache = createCache(), + compilerCache = createCache(), + nonnativeSelectorCache = createCache(), + sortOrder = function( a, b ) { + if ( a === b ) { + hasDuplicate = true; + } + return 0; + }, + + // Instance methods + hasOwn = ( {} ).hasOwnProperty, + arr = [], + pop = arr.pop, + pushNative = arr.push, + push = arr.push, + slice = arr.slice, + + // Use a stripped-down indexOf as it's faster than native + // https://jsperf.com/thor-indexof-vs-for/5 + indexOf = function( list, elem ) { + var i = 0, + len = list.length; + for ( ; i < len; i++ ) { + if ( list[ i ] === elem ) { + return i; + } + } + return -1; + }, + + booleans = "checked|selected|async|autofocus|autoplay|controls|defer|disabled|hidden|" + + "ismap|loop|multiple|open|readonly|required|scoped", + + // Regular expressions + + // http://www.w3.org/TR/css3-selectors/#whitespace + whitespace = "[\\x20\\t\\r\\n\\f]", + + // https://www.w3.org/TR/css-syntax-3/#ident-token-diagram + identifier = "(?:\\\\[\\da-fA-F]{1,6}" + whitespace + + "?|\\\\[^\\r\\n\\f]|[\\w-]|[^\0-\\x7f])+", + + // Attribute selectors: http://www.w3.org/TR/selectors/#attribute-selectors + attributes = "\\[" + whitespace + "*(" + identifier + ")(?:" + whitespace + + + // Operator (capture 2) + "*([*^$|!~]?=)" + whitespace + + + // "Attribute values must be CSS identifiers [capture 5] + // or strings [capture 3 or capture 4]" + "*(?:'((?:\\\\.|[^\\\\'])*)'|\"((?:\\\\.|[^\\\\\"])*)\"|(" + identifier + "))|)" + + whitespace + "*\\]", + + pseudos = ":(" + identifier + ")(?:\\((" + + + // To reduce the number of selectors needing tokenize in the preFilter, prefer arguments: + // 1. quoted (capture 3; capture 4 or capture 5) + "('((?:\\\\.|[^\\\\'])*)'|\"((?:\\\\.|[^\\\\\"])*)\")|" + + + // 2. simple (capture 6) + "((?:\\\\.|[^\\\\()[\\]]|" + attributes + ")*)|" + + + // 3. anything else (capture 2) + ".*" + + ")\\)|)", + + // Leading and non-escaped trailing whitespace, capturing some non-whitespace characters preceding the latter + rwhitespace = new RegExp( whitespace + "+", "g" ), + rtrim = new RegExp( "^" + whitespace + "+|((?:^|[^\\\\])(?:\\\\.)*)" + + whitespace + "+$", "g" ), + + rcomma = new RegExp( "^" + whitespace + "*," + whitespace + "*" ), + rcombinators = new RegExp( "^" + whitespace + "*([>+~]|" + whitespace + ")" + whitespace + + "*" ), + rdescend = new RegExp( whitespace + "|>" ), + + rpseudo = new RegExp( pseudos ), + ridentifier = new RegExp( "^" + identifier + "$" ), + + matchExpr = { + "ID": new RegExp( "^#(" + identifier + ")" ), + "CLASS": new RegExp( "^\\.(" + identifier + ")" ), + "TAG": new RegExp( "^(" + identifier + "|[*])" ), + "ATTR": new RegExp( "^" + attributes ), + "PSEUDO": new RegExp( "^" + pseudos ), + "CHILD": new RegExp( "^:(only|first|last|nth|nth-last)-(child|of-type)(?:\\(" + + whitespace + "*(even|odd|(([+-]|)(\\d*)n|)" + whitespace + "*(?:([+-]|)" + + whitespace + "*(\\d+)|))" + whitespace + "*\\)|)", "i" ), + "bool": new RegExp( "^(?:" + booleans + ")$", "i" ), + + // For use in libraries implementing .is() + // We use this for POS matching in `select` + "needsContext": new RegExp( "^" + whitespace + + "*[>+~]|:(even|odd|eq|gt|lt|nth|first|last)(?:\\(" + whitespace + + "*((?:-\\d)?\\d*)" + whitespace + "*\\)|)(?=[^-]|$)", "i" ) + }, + + rhtml = /HTML$/i, + rinputs = /^(?:input|select|textarea|button)$/i, + rheader = /^h\d$/i, + + rnative = /^[^{]+\{\s*\[native \w/, + + // Easily-parseable/retrievable ID or TAG or CLASS selectors + rquickExpr = /^(?:#([\w-]+)|(\w+)|\.([\w-]+))$/, + + rsibling = /[+~]/, + + // CSS escapes + // http://www.w3.org/TR/CSS21/syndata.html#escaped-characters + runescape = new RegExp( "\\\\[\\da-fA-F]{1,6}" + whitespace + "?|\\\\([^\\r\\n\\f])", "g" ), + funescape = function( escape, nonHex ) { + var high = "0x" + escape.slice( 1 ) - 0x10000; + + return nonHex ? + + // Strip the backslash prefix from a non-hex escape sequence + nonHex : + + // Replace a hexadecimal escape sequence with the encoded Unicode code point + // Support: IE <=11+ + // For values outside the Basic Multilingual Plane (BMP), manually construct a + // surrogate pair + high < 0 ? + String.fromCharCode( high + 0x10000 ) : + String.fromCharCode( high >> 10 | 0xD800, high & 0x3FF | 0xDC00 ); + }, + + // CSS string/identifier serialization + // https://drafts.csswg.org/cssom/#common-serializing-idioms + rcssescape = /([\0-\x1f\x7f]|^-?\d)|^-$|[^\0-\x1f\x7f-\uFFFF\w-]/g, + fcssescape = function( ch, asCodePoint ) { + if ( asCodePoint ) { + + // U+0000 NULL becomes U+FFFD REPLACEMENT CHARACTER + if ( ch === "\0" ) { + return "\uFFFD"; + } + + // Control characters and (dependent upon position) numbers get escaped as code points + return ch.slice( 0, -1 ) + "\\" + + ch.charCodeAt( ch.length - 1 ).toString( 16 ) + " "; + } + + // Other potentially-special ASCII characters get backslash-escaped + return "\\" + ch; + }, + + // Used for iframes + // See setDocument() + // Removing the function wrapper causes a "Permission Denied" + // error in IE + unloadHandler = function() { + setDocument(); + }, + + inDisabledFieldset = addCombinator( + function( elem ) { + return elem.disabled === true && elem.nodeName.toLowerCase() === "fieldset"; + }, + { dir: "parentNode", next: "legend" } + ); + +// Optimize for push.apply( _, NodeList ) +try { + push.apply( + ( arr = slice.call( preferredDoc.childNodes ) ), + preferredDoc.childNodes + ); + + // Support: Android<4.0 + // Detect silently failing push.apply + // eslint-disable-next-line no-unused-expressions + arr[ preferredDoc.childNodes.length ].nodeType; +} catch ( e ) { + push = { apply: arr.length ? + + // Leverage slice if possible + function( target, els ) { + pushNative.apply( target, slice.call( els ) ); + } : + + // Support: IE<9 + // Otherwise append directly + function( target, els ) { + var j = target.length, + i = 0; + + // Can't trust NodeList.length + while ( ( target[ j++ ] = els[ i++ ] ) ) {} + target.length = j - 1; + } + }; +} + +function Sizzle( selector, context, results, seed ) { + var m, i, elem, nid, match, groups, newSelector, + newContext = context && context.ownerDocument, + + // nodeType defaults to 9, since context defaults to document + nodeType = context ? context.nodeType : 9; + + results = results || []; + + // Return early from calls with invalid selector or context + if ( typeof selector !== "string" || !selector || + nodeType !== 1 && nodeType !== 9 && nodeType !== 11 ) { + + return results; + } + + // Try to shortcut find operations (as opposed to filters) in HTML documents + if ( !seed ) { + setDocument( context ); + context = context || document; + + if ( documentIsHTML ) { + + // If the selector is sufficiently simple, try using a "get*By*" DOM method + // (excepting DocumentFragment context, where the methods don't exist) + if ( nodeType !== 11 && ( match = rquickExpr.exec( selector ) ) ) { + + // ID selector + if ( ( m = match[ 1 ] ) ) { + + // Document context + if ( nodeType === 9 ) { + if ( ( elem = context.getElementById( m ) ) ) { + + // Support: IE, Opera, Webkit + // TODO: identify versions + // getElementById can match elements by name instead of ID + if ( elem.id === m ) { + results.push( elem ); + return results; + } + } else { + return results; + } + + // Element context + } else { + + // Support: IE, Opera, Webkit + // TODO: identify versions + // getElementById can match elements by name instead of ID + if ( newContext && ( elem = newContext.getElementById( m ) ) && + contains( context, elem ) && + elem.id === m ) { + + results.push( elem ); + return results; + } + } + + // Type selector + } else if ( match[ 2 ] ) { + push.apply( results, context.getElementsByTagName( selector ) ); + return results; + + // Class selector + } else if ( ( m = match[ 3 ] ) && support.getElementsByClassName && + context.getElementsByClassName ) { + + push.apply( results, context.getElementsByClassName( m ) ); + return results; + } + } + + // Take advantage of querySelectorAll + if ( support.qsa && + !nonnativeSelectorCache[ selector + " " ] && + ( !rbuggyQSA || !rbuggyQSA.test( selector ) ) && + + // Support: IE 8 only + // Exclude object elements + ( nodeType !== 1 || context.nodeName.toLowerCase() !== "object" ) ) { + + newSelector = selector; + newContext = context; + + // qSA considers elements outside a scoping root when evaluating child or + // descendant combinators, which is not what we want. + // In such cases, we work around the behavior by prefixing every selector in the + // list with an ID selector referencing the scope context. + // The technique has to be used as well when a leading combinator is used + // as such selectors are not recognized by querySelectorAll. + // Thanks to Andrew Dupont for this technique. + if ( nodeType === 1 && + ( rdescend.test( selector ) || rcombinators.test( selector ) ) ) { + + // Expand context for sibling selectors + newContext = rsibling.test( selector ) && testContext( context.parentNode ) || + context; + + // We can use :scope instead of the ID hack if the browser + // supports it & if we're not changing the context. + if ( newContext !== context || !support.scope ) { + + // Capture the context ID, setting it first if necessary + if ( ( nid = context.getAttribute( "id" ) ) ) { + nid = nid.replace( rcssescape, fcssescape ); + } else { + context.setAttribute( "id", ( nid = expando ) ); + } + } + + // Prefix every selector in the list + groups = tokenize( selector ); + i = groups.length; + while ( i-- ) { + groups[ i ] = ( nid ? "#" + nid : ":scope" ) + " " + + toSelector( groups[ i ] ); + } + newSelector = groups.join( "," ); + } + + try { + push.apply( results, + newContext.querySelectorAll( newSelector ) + ); + return results; + } catch ( qsaError ) { + nonnativeSelectorCache( selector, true ); + } finally { + if ( nid === expando ) { + context.removeAttribute( "id" ); + } + } + } + } + } + + // All others + return select( selector.replace( rtrim, "$1" ), context, results, seed ); +} + +/** + * Create key-value caches of limited size + * @returns {function(string, object)} Returns the Object data after storing it on itself with + * property name the (space-suffixed) string and (if the cache is larger than Expr.cacheLength) + * deleting the oldest entry + */ +function createCache() { + var keys = []; + + function cache( key, value ) { + + // Use (key + " ") to avoid collision with native prototype properties (see Issue #157) + if ( keys.push( key + " " ) > Expr.cacheLength ) { + + // Only keep the most recent entries + delete cache[ keys.shift() ]; + } + return ( cache[ key + " " ] = value ); + } + return cache; +} + +/** + * Mark a function for special use by Sizzle + * @param {Function} fn The function to mark + */ +function markFunction( fn ) { + fn[ expando ] = true; + return fn; +} + +/** + * Support testing using an element + * @param {Function} fn Passed the created element and returns a boolean result + */ +function assert( fn ) { + var el = document.createElement( "fieldset" ); + + try { + return !!fn( el ); + } catch ( e ) { + return false; + } finally { + + // Remove from its parent by default + if ( el.parentNode ) { + el.parentNode.removeChild( el ); + } + + // release memory in IE + el = null; + } +} + +/** + * Adds the same handler for all of the specified attrs + * @param {String} attrs Pipe-separated list of attributes + * @param {Function} handler The method that will be applied + */ +function addHandle( attrs, handler ) { + var arr = attrs.split( "|" ), + i = arr.length; + + while ( i-- ) { + Expr.attrHandle[ arr[ i ] ] = handler; + } +} + +/** + * Checks document order of two siblings + * @param {Element} a + * @param {Element} b + * @returns {Number} Returns less than 0 if a precedes b, greater than 0 if a follows b + */ +function siblingCheck( a, b ) { + var cur = b && a, + diff = cur && a.nodeType === 1 && b.nodeType === 1 && + a.sourceIndex - b.sourceIndex; + + // Use IE sourceIndex if available on both nodes + if ( diff ) { + return diff; + } + + // Check if b follows a + if ( cur ) { + while ( ( cur = cur.nextSibling ) ) { + if ( cur === b ) { + return -1; + } + } + } + + return a ? 1 : -1; +} + +/** + * Returns a function to use in pseudos for input types + * @param {String} type + */ +function createInputPseudo( type ) { + return function( elem ) { + var name = elem.nodeName.toLowerCase(); + return name === "input" && elem.type === type; + }; +} + +/** + * Returns a function to use in pseudos for buttons + * @param {String} type + */ +function createButtonPseudo( type ) { + return function( elem ) { + var name = elem.nodeName.toLowerCase(); + return ( name === "input" || name === "button" ) && elem.type === type; + }; +} + +/** + * Returns a function to use in pseudos for :enabled/:disabled + * @param {Boolean} disabled true for :disabled; false for :enabled + */ +function createDisabledPseudo( disabled ) { + + // Known :disabled false positives: fieldset[disabled] > legend:nth-of-type(n+2) :can-disable + return function( elem ) { + + // Only certain elements can match :enabled or :disabled + // https://html.spec.whatwg.org/multipage/scripting.html#selector-enabled + // https://html.spec.whatwg.org/multipage/scripting.html#selector-disabled + if ( "form" in elem ) { + + // Check for inherited disabledness on relevant non-disabled elements: + // * listed form-associated elements in a disabled fieldset + // https://html.spec.whatwg.org/multipage/forms.html#category-listed + // https://html.spec.whatwg.org/multipage/forms.html#concept-fe-disabled + // * option elements in a disabled optgroup + // https://html.spec.whatwg.org/multipage/forms.html#concept-option-disabled + // All such elements have a "form" property. + if ( elem.parentNode && elem.disabled === false ) { + + // Option elements defer to a parent optgroup if present + if ( "label" in elem ) { + if ( "label" in elem.parentNode ) { + return elem.parentNode.disabled === disabled; + } else { + return elem.disabled === disabled; + } + } + + // Support: IE 6 - 11 + // Use the isDisabled shortcut property to check for disabled fieldset ancestors + return elem.isDisabled === disabled || + + // Where there is no isDisabled, check manually + /* jshint -W018 */ + elem.isDisabled !== !disabled && + inDisabledFieldset( elem ) === disabled; + } + + return elem.disabled === disabled; + + // Try to winnow out elements that can't be disabled before trusting the disabled property. + // Some victims get caught in our net (label, legend, menu, track), but it shouldn't + // even exist on them, let alone have a boolean value. + } else if ( "label" in elem ) { + return elem.disabled === disabled; + } + + // Remaining elements are neither :enabled nor :disabled + return false; + }; +} + +/** + * Returns a function to use in pseudos for positionals + * @param {Function} fn + */ +function createPositionalPseudo( fn ) { + return markFunction( function( argument ) { + argument = +argument; + return markFunction( function( seed, matches ) { + var j, + matchIndexes = fn( [], seed.length, argument ), + i = matchIndexes.length; + + // Match elements found at the specified indexes + while ( i-- ) { + if ( seed[ ( j = matchIndexes[ i ] ) ] ) { + seed[ j ] = !( matches[ j ] = seed[ j ] ); + } + } + } ); + } ); +} + +/** + * Checks a node for validity as a Sizzle context + * @param {Element|Object=} context + * @returns {Element|Object|Boolean} The input node if acceptable, otherwise a falsy value + */ +function testContext( context ) { + return context && typeof context.getElementsByTagName !== "undefined" && context; +} + +// Expose support vars for convenience +support = Sizzle.support = {}; + +/** + * Detects XML nodes + * @param {Element|Object} elem An element or a document + * @returns {Boolean} True iff elem is a non-HTML XML node + */ +isXML = Sizzle.isXML = function( elem ) { + var namespace = elem && elem.namespaceURI, + docElem = elem && ( elem.ownerDocument || elem ).documentElement; + + // Support: IE <=8 + // Assume HTML when documentElement doesn't yet exist, such as inside loading iframes + // https://bugs.jquery.com/ticket/4833 + return !rhtml.test( namespace || docElem && docElem.nodeName || "HTML" ); +}; + +/** + * Sets document-related variables once based on the current document + * @param {Element|Object} [doc] An element or document object to use to set the document + * @returns {Object} Returns the current document + */ +setDocument = Sizzle.setDocument = function( node ) { + var hasCompare, subWindow, + doc = node ? node.ownerDocument || node : preferredDoc; + + // Return early if doc is invalid or already selected + // Support: IE 11+, Edge 17 - 18+ + // IE/Edge sometimes throw a "Permission denied" error when strict-comparing + // two documents; shallow comparisons work. + // eslint-disable-next-line eqeqeq + if ( doc == document || doc.nodeType !== 9 || !doc.documentElement ) { + return document; + } + + // Update global variables + document = doc; + docElem = document.documentElement; + documentIsHTML = !isXML( document ); + + // Support: IE 9 - 11+, Edge 12 - 18+ + // Accessing iframe documents after unload throws "permission denied" errors (jQuery #13936) + // Support: IE 11+, Edge 17 - 18+ + // IE/Edge sometimes throw a "Permission denied" error when strict-comparing + // two documents; shallow comparisons work. + // eslint-disable-next-line eqeqeq + if ( preferredDoc != document && + ( subWindow = document.defaultView ) && subWindow.top !== subWindow ) { + + // Support: IE 11, Edge + if ( subWindow.addEventListener ) { + subWindow.addEventListener( "unload", unloadHandler, false ); + + // Support: IE 9 - 10 only + } else if ( subWindow.attachEvent ) { + subWindow.attachEvent( "onunload", unloadHandler ); + } + } + + // Support: IE 8 - 11+, Edge 12 - 18+, Chrome <=16 - 25 only, Firefox <=3.6 - 31 only, + // Safari 4 - 5 only, Opera <=11.6 - 12.x only + // IE/Edge & older browsers don't support the :scope pseudo-class. + // Support: Safari 6.0 only + // Safari 6.0 supports :scope but it's an alias of :root there. + support.scope = assert( function( el ) { + docElem.appendChild( el ).appendChild( document.createElement( "div" ) ); + return typeof el.querySelectorAll !== "undefined" && + !el.querySelectorAll( ":scope fieldset div" ).length; + } ); + + /* Attributes + ---------------------------------------------------------------------- */ + + // Support: IE<8 + // Verify that getAttribute really returns attributes and not properties + // (excepting IE8 booleans) + support.attributes = assert( function( el ) { + el.className = "i"; + return !el.getAttribute( "className" ); + } ); + + /* getElement(s)By* + ---------------------------------------------------------------------- */ + + // Check if getElementsByTagName("*") returns only elements + support.getElementsByTagName = assert( function( el ) { + el.appendChild( document.createComment( "" ) ); + return !el.getElementsByTagName( "*" ).length; + } ); + + // Support: IE<9 + support.getElementsByClassName = rnative.test( document.getElementsByClassName ); + + // Support: IE<10 + // Check if getElementById returns elements by name + // The broken getElementById methods don't pick up programmatically-set names, + // so use a roundabout getElementsByName test + support.getById = assert( function( el ) { + docElem.appendChild( el ).id = expando; + return !document.getElementsByName || !document.getElementsByName( expando ).length; + } ); + + // ID filter and find + if ( support.getById ) { + Expr.filter[ "ID" ] = function( id ) { + var attrId = id.replace( runescape, funescape ); + return function( elem ) { + return elem.getAttribute( "id" ) === attrId; + }; + }; + Expr.find[ "ID" ] = function( id, context ) { + if ( typeof context.getElementById !== "undefined" && documentIsHTML ) { + var elem = context.getElementById( id ); + return elem ? [ elem ] : []; + } + }; + } else { + Expr.filter[ "ID" ] = function( id ) { + var attrId = id.replace( runescape, funescape ); + return function( elem ) { + var node = typeof elem.getAttributeNode !== "undefined" && + elem.getAttributeNode( "id" ); + return node && node.value === attrId; + }; + }; + + // Support: IE 6 - 7 only + // getElementById is not reliable as a find shortcut + Expr.find[ "ID" ] = function( id, context ) { + if ( typeof context.getElementById !== "undefined" && documentIsHTML ) { + var node, i, elems, + elem = context.getElementById( id ); + + if ( elem ) { + + // Verify the id attribute + node = elem.getAttributeNode( "id" ); + if ( node && node.value === id ) { + return [ elem ]; + } + + // Fall back on getElementsByName + elems = context.getElementsByName( id ); + i = 0; + while ( ( elem = elems[ i++ ] ) ) { + node = elem.getAttributeNode( "id" ); + if ( node && node.value === id ) { + return [ elem ]; + } + } + } + + return []; + } + }; + } + + // Tag + Expr.find[ "TAG" ] = support.getElementsByTagName ? + function( tag, context ) { + if ( typeof context.getElementsByTagName !== "undefined" ) { + return context.getElementsByTagName( tag ); + + // DocumentFragment nodes don't have gEBTN + } else if ( support.qsa ) { + return context.querySelectorAll( tag ); + } + } : + + function( tag, context ) { + var elem, + tmp = [], + i = 0, + + // By happy coincidence, a (broken) gEBTN appears on DocumentFragment nodes too + results = context.getElementsByTagName( tag ); + + // Filter out possible comments + if ( tag === "*" ) { + while ( ( elem = results[ i++ ] ) ) { + if ( elem.nodeType === 1 ) { + tmp.push( elem ); + } + } + + return tmp; + } + return results; + }; + + // Class + Expr.find[ "CLASS" ] = support.getElementsByClassName && function( className, context ) { + if ( typeof context.getElementsByClassName !== "undefined" && documentIsHTML ) { + return context.getElementsByClassName( className ); + } + }; + + /* QSA/matchesSelector + ---------------------------------------------------------------------- */ + + // QSA and matchesSelector support + + // matchesSelector(:active) reports false when true (IE9/Opera 11.5) + rbuggyMatches = []; + + // qSa(:focus) reports false when true (Chrome 21) + // We allow this because of a bug in IE8/9 that throws an error + // whenever `document.activeElement` is accessed on an iframe + // So, we allow :focus to pass through QSA all the time to avoid the IE error + // See https://bugs.jquery.com/ticket/13378 + rbuggyQSA = []; + + if ( ( support.qsa = rnative.test( document.querySelectorAll ) ) ) { + + // Build QSA regex + // Regex strategy adopted from Diego Perini + assert( function( el ) { + + var input; + + // Select is set to empty string on purpose + // This is to test IE's treatment of not explicitly + // setting a boolean content attribute, + // since its presence should be enough + // https://bugs.jquery.com/ticket/12359 + docElem.appendChild( el ).innerHTML = "" + + ""; + + // Support: IE8, Opera 11-12.16 + // Nothing should be selected when empty strings follow ^= or $= or *= + // The test attribute must be unknown in Opera but "safe" for WinRT + // https://msdn.microsoft.com/en-us/library/ie/hh465388.aspx#attribute_section + if ( el.querySelectorAll( "[msallowcapture^='']" ).length ) { + rbuggyQSA.push( "[*^$]=" + whitespace + "*(?:''|\"\")" ); + } + + // Support: IE8 + // Boolean attributes and "value" are not treated correctly + if ( !el.querySelectorAll( "[selected]" ).length ) { + rbuggyQSA.push( "\\[" + whitespace + "*(?:value|" + booleans + ")" ); + } + + // Support: Chrome<29, Android<4.4, Safari<7.0+, iOS<7.0+, PhantomJS<1.9.8+ + if ( !el.querySelectorAll( "[id~=" + expando + "-]" ).length ) { + rbuggyQSA.push( "~=" ); + } + + // Support: IE 11+, Edge 15 - 18+ + // IE 11/Edge don't find elements on a `[name='']` query in some cases. + // Adding a temporary attribute to the document before the selection works + // around the issue. + // Interestingly, IE 10 & older don't seem to have the issue. + input = document.createElement( "input" ); + input.setAttribute( "name", "" ); + el.appendChild( input ); + if ( !el.querySelectorAll( "[name='']" ).length ) { + rbuggyQSA.push( "\\[" + whitespace + "*name" + whitespace + "*=" + + whitespace + "*(?:''|\"\")" ); + } + + // Webkit/Opera - :checked should return selected option elements + // http://www.w3.org/TR/2011/REC-css3-selectors-20110929/#checked + // IE8 throws error here and will not see later tests + if ( !el.querySelectorAll( ":checked" ).length ) { + rbuggyQSA.push( ":checked" ); + } + + // Support: Safari 8+, iOS 8+ + // https://bugs.webkit.org/show_bug.cgi?id=136851 + // In-page `selector#id sibling-combinator selector` fails + if ( !el.querySelectorAll( "a#" + expando + "+*" ).length ) { + rbuggyQSA.push( ".#.+[+~]" ); + } + + // Support: Firefox <=3.6 - 5 only + // Old Firefox doesn't throw on a badly-escaped identifier. + el.querySelectorAll( "\\\f" ); + rbuggyQSA.push( "[\\r\\n\\f]" ); + } ); + + assert( function( el ) { + el.innerHTML = "" + + ""; + + // Support: Windows 8 Native Apps + // The type and name attributes are restricted during .innerHTML assignment + var input = document.createElement( "input" ); + input.setAttribute( "type", "hidden" ); + el.appendChild( input ).setAttribute( "name", "D" ); + + // Support: IE8 + // Enforce case-sensitivity of name attribute + if ( el.querySelectorAll( "[name=d]" ).length ) { + rbuggyQSA.push( "name" + whitespace + "*[*^$|!~]?=" ); + } + + // FF 3.5 - :enabled/:disabled and hidden elements (hidden elements are still enabled) + // IE8 throws error here and will not see later tests + if ( el.querySelectorAll( ":enabled" ).length !== 2 ) { + rbuggyQSA.push( ":enabled", ":disabled" ); + } + + // Support: IE9-11+ + // IE's :disabled selector does not pick up the children of disabled fieldsets + docElem.appendChild( el ).disabled = true; + if ( el.querySelectorAll( ":disabled" ).length !== 2 ) { + rbuggyQSA.push( ":enabled", ":disabled" ); + } + + // Support: Opera 10 - 11 only + // Opera 10-11 does not throw on post-comma invalid pseudos + el.querySelectorAll( "*,:x" ); + rbuggyQSA.push( ",.*:" ); + } ); + } + + if ( ( support.matchesSelector = rnative.test( ( matches = docElem.matches || + docElem.webkitMatchesSelector || + docElem.mozMatchesSelector || + docElem.oMatchesSelector || + docElem.msMatchesSelector ) ) ) ) { + + assert( function( el ) { + + // Check to see if it's possible to do matchesSelector + // on a disconnected node (IE 9) + support.disconnectedMatch = matches.call( el, "*" ); + + // This should fail with an exception + // Gecko does not error, returns false instead + matches.call( el, "[s!='']:x" ); + rbuggyMatches.push( "!=", pseudos ); + } ); + } + + rbuggyQSA = rbuggyQSA.length && new RegExp( rbuggyQSA.join( "|" ) ); + rbuggyMatches = rbuggyMatches.length && new RegExp( rbuggyMatches.join( "|" ) ); + + /* Contains + ---------------------------------------------------------------------- */ + hasCompare = rnative.test( docElem.compareDocumentPosition ); + + // Element contains another + // Purposefully self-exclusive + // As in, an element does not contain itself + contains = hasCompare || rnative.test( docElem.contains ) ? + function( a, b ) { + var adown = a.nodeType === 9 ? a.documentElement : a, + bup = b && b.parentNode; + return a === bup || !!( bup && bup.nodeType === 1 && ( + adown.contains ? + adown.contains( bup ) : + a.compareDocumentPosition && a.compareDocumentPosition( bup ) & 16 + ) ); + } : + function( a, b ) { + if ( b ) { + while ( ( b = b.parentNode ) ) { + if ( b === a ) { + return true; + } + } + } + return false; + }; + + /* Sorting + ---------------------------------------------------------------------- */ + + // Document order sorting + sortOrder = hasCompare ? + function( a, b ) { + + // Flag for duplicate removal + if ( a === b ) { + hasDuplicate = true; + return 0; + } + + // Sort on method existence if only one input has compareDocumentPosition + var compare = !a.compareDocumentPosition - !b.compareDocumentPosition; + if ( compare ) { + return compare; + } + + // Calculate position if both inputs belong to the same document + // Support: IE 11+, Edge 17 - 18+ + // IE/Edge sometimes throw a "Permission denied" error when strict-comparing + // two documents; shallow comparisons work. + // eslint-disable-next-line eqeqeq + compare = ( a.ownerDocument || a ) == ( b.ownerDocument || b ) ? + a.compareDocumentPosition( b ) : + + // Otherwise we know they are disconnected + 1; + + // Disconnected nodes + if ( compare & 1 || + ( !support.sortDetached && b.compareDocumentPosition( a ) === compare ) ) { + + // Choose the first element that is related to our preferred document + // Support: IE 11+, Edge 17 - 18+ + // IE/Edge sometimes throw a "Permission denied" error when strict-comparing + // two documents; shallow comparisons work. + // eslint-disable-next-line eqeqeq + if ( a == document || a.ownerDocument == preferredDoc && + contains( preferredDoc, a ) ) { + return -1; + } + + // Support: IE 11+, Edge 17 - 18+ + // IE/Edge sometimes throw a "Permission denied" error when strict-comparing + // two documents; shallow comparisons work. + // eslint-disable-next-line eqeqeq + if ( b == document || b.ownerDocument == preferredDoc && + contains( preferredDoc, b ) ) { + return 1; + } + + // Maintain original order + return sortInput ? + ( indexOf( sortInput, a ) - indexOf( sortInput, b ) ) : + 0; + } + + return compare & 4 ? -1 : 1; + } : + function( a, b ) { + + // Exit early if the nodes are identical + if ( a === b ) { + hasDuplicate = true; + return 0; + } + + var cur, + i = 0, + aup = a.parentNode, + bup = b.parentNode, + ap = [ a ], + bp = [ b ]; + + // Parentless nodes are either documents or disconnected + if ( !aup || !bup ) { + + // Support: IE 11+, Edge 17 - 18+ + // IE/Edge sometimes throw a "Permission denied" error when strict-comparing + // two documents; shallow comparisons work. + /* eslint-disable eqeqeq */ + return a == document ? -1 : + b == document ? 1 : + /* eslint-enable eqeqeq */ + aup ? -1 : + bup ? 1 : + sortInput ? + ( indexOf( sortInput, a ) - indexOf( sortInput, b ) ) : + 0; + + // If the nodes are siblings, we can do a quick check + } else if ( aup === bup ) { + return siblingCheck( a, b ); + } + + // Otherwise we need full lists of their ancestors for comparison + cur = a; + while ( ( cur = cur.parentNode ) ) { + ap.unshift( cur ); + } + cur = b; + while ( ( cur = cur.parentNode ) ) { + bp.unshift( cur ); + } + + // Walk down the tree looking for a discrepancy + while ( ap[ i ] === bp[ i ] ) { + i++; + } + + return i ? + + // Do a sibling check if the nodes have a common ancestor + siblingCheck( ap[ i ], bp[ i ] ) : + + // Otherwise nodes in our document sort first + // Support: IE 11+, Edge 17 - 18+ + // IE/Edge sometimes throw a "Permission denied" error when strict-comparing + // two documents; shallow comparisons work. + /* eslint-disable eqeqeq */ + ap[ i ] == preferredDoc ? -1 : + bp[ i ] == preferredDoc ? 1 : + /* eslint-enable eqeqeq */ + 0; + }; + + return document; +}; + +Sizzle.matches = function( expr, elements ) { + return Sizzle( expr, null, null, elements ); +}; + +Sizzle.matchesSelector = function( elem, expr ) { + setDocument( elem ); + + if ( support.matchesSelector && documentIsHTML && + !nonnativeSelectorCache[ expr + " " ] && + ( !rbuggyMatches || !rbuggyMatches.test( expr ) ) && + ( !rbuggyQSA || !rbuggyQSA.test( expr ) ) ) { + + try { + var ret = matches.call( elem, expr ); + + // IE 9's matchesSelector returns false on disconnected nodes + if ( ret || support.disconnectedMatch || + + // As well, disconnected nodes are said to be in a document + // fragment in IE 9 + elem.document && elem.document.nodeType !== 11 ) { + return ret; + } + } catch ( e ) { + nonnativeSelectorCache( expr, true ); + } + } + + return Sizzle( expr, document, null, [ elem ] ).length > 0; +}; + +Sizzle.contains = function( context, elem ) { + + // Set document vars if needed + // Support: IE 11+, Edge 17 - 18+ + // IE/Edge sometimes throw a "Permission denied" error when strict-comparing + // two documents; shallow comparisons work. + // eslint-disable-next-line eqeqeq + if ( ( context.ownerDocument || context ) != document ) { + setDocument( context ); + } + return contains( context, elem ); +}; + +Sizzle.attr = function( elem, name ) { + + // Set document vars if needed + // Support: IE 11+, Edge 17 - 18+ + // IE/Edge sometimes throw a "Permission denied" error when strict-comparing + // two documents; shallow comparisons work. + // eslint-disable-next-line eqeqeq + if ( ( elem.ownerDocument || elem ) != document ) { + setDocument( elem ); + } + + var fn = Expr.attrHandle[ name.toLowerCase() ], + + // Don't get fooled by Object.prototype properties (jQuery #13807) + val = fn && hasOwn.call( Expr.attrHandle, name.toLowerCase() ) ? + fn( elem, name, !documentIsHTML ) : + undefined; + + return val !== undefined ? + val : + support.attributes || !documentIsHTML ? + elem.getAttribute( name ) : + ( val = elem.getAttributeNode( name ) ) && val.specified ? + val.value : + null; +}; + +Sizzle.escape = function( sel ) { + return ( sel + "" ).replace( rcssescape, fcssescape ); +}; + +Sizzle.error = function( msg ) { + throw new Error( "Syntax error, unrecognized expression: " + msg ); +}; + +/** + * Document sorting and removing duplicates + * @param {ArrayLike} results + */ +Sizzle.uniqueSort = function( results ) { + var elem, + duplicates = [], + j = 0, + i = 0; + + // Unless we *know* we can detect duplicates, assume their presence + hasDuplicate = !support.detectDuplicates; + sortInput = !support.sortStable && results.slice( 0 ); + results.sort( sortOrder ); + + if ( hasDuplicate ) { + while ( ( elem = results[ i++ ] ) ) { + if ( elem === results[ i ] ) { + j = duplicates.push( i ); + } + } + while ( j-- ) { + results.splice( duplicates[ j ], 1 ); + } + } + + // Clear input after sorting to release objects + // See https://github.com/jquery/sizzle/pull/225 + sortInput = null; + + return results; +}; + +/** + * Utility function for retrieving the text value of an array of DOM nodes + * @param {Array|Element} elem + */ +getText = Sizzle.getText = function( elem ) { + var node, + ret = "", + i = 0, + nodeType = elem.nodeType; + + if ( !nodeType ) { + + // If no nodeType, this is expected to be an array + while ( ( node = elem[ i++ ] ) ) { + + // Do not traverse comment nodes + ret += getText( node ); + } + } else if ( nodeType === 1 || nodeType === 9 || nodeType === 11 ) { + + // Use textContent for elements + // innerText usage removed for consistency of new lines (jQuery #11153) + if ( typeof elem.textContent === "string" ) { + return elem.textContent; + } else { + + // Traverse its children + for ( elem = elem.firstChild; elem; elem = elem.nextSibling ) { + ret += getText( elem ); + } + } + } else if ( nodeType === 3 || nodeType === 4 ) { + return elem.nodeValue; + } + + // Do not include comment or processing instruction nodes + + return ret; +}; + +Expr = Sizzle.selectors = { + + // Can be adjusted by the user + cacheLength: 50, + + createPseudo: markFunction, + + match: matchExpr, + + attrHandle: {}, + + find: {}, + + relative: { + ">": { dir: "parentNode", first: true }, + " ": { dir: "parentNode" }, + "+": { dir: "previousSibling", first: true }, + "~": { dir: "previousSibling" } + }, + + preFilter: { + "ATTR": function( match ) { + match[ 1 ] = match[ 1 ].replace( runescape, funescape ); + + // Move the given value to match[3] whether quoted or unquoted + match[ 3 ] = ( match[ 3 ] || match[ 4 ] || + match[ 5 ] || "" ).replace( runescape, funescape ); + + if ( match[ 2 ] === "~=" ) { + match[ 3 ] = " " + match[ 3 ] + " "; + } + + return match.slice( 0, 4 ); + }, + + "CHILD": function( match ) { + + /* matches from matchExpr["CHILD"] + 1 type (only|nth|...) + 2 what (child|of-type) + 3 argument (even|odd|\d*|\d*n([+-]\d+)?|...) + 4 xn-component of xn+y argument ([+-]?\d*n|) + 5 sign of xn-component + 6 x of xn-component + 7 sign of y-component + 8 y of y-component + */ + match[ 1 ] = match[ 1 ].toLowerCase(); + + if ( match[ 1 ].slice( 0, 3 ) === "nth" ) { + + // nth-* requires argument + if ( !match[ 3 ] ) { + Sizzle.error( match[ 0 ] ); + } + + // numeric x and y parameters for Expr.filter.CHILD + // remember that false/true cast respectively to 0/1 + match[ 4 ] = +( match[ 4 ] ? + match[ 5 ] + ( match[ 6 ] || 1 ) : + 2 * ( match[ 3 ] === "even" || match[ 3 ] === "odd" ) ); + match[ 5 ] = +( ( match[ 7 ] + match[ 8 ] ) || match[ 3 ] === "odd" ); + + // other types prohibit arguments + } else if ( match[ 3 ] ) { + Sizzle.error( match[ 0 ] ); + } + + return match; + }, + + "PSEUDO": function( match ) { + var excess, + unquoted = !match[ 6 ] && match[ 2 ]; + + if ( matchExpr[ "CHILD" ].test( match[ 0 ] ) ) { + return null; + } + + // Accept quoted arguments as-is + if ( match[ 3 ] ) { + match[ 2 ] = match[ 4 ] || match[ 5 ] || ""; + + // Strip excess characters from unquoted arguments + } else if ( unquoted && rpseudo.test( unquoted ) && + + // Get excess from tokenize (recursively) + ( excess = tokenize( unquoted, true ) ) && + + // advance to the next closing parenthesis + ( excess = unquoted.indexOf( ")", unquoted.length - excess ) - unquoted.length ) ) { + + // excess is a negative index + match[ 0 ] = match[ 0 ].slice( 0, excess ); + match[ 2 ] = unquoted.slice( 0, excess ); + } + + // Return only captures needed by the pseudo filter method (type and argument) + return match.slice( 0, 3 ); + } + }, + + filter: { + + "TAG": function( nodeNameSelector ) { + var nodeName = nodeNameSelector.replace( runescape, funescape ).toLowerCase(); + return nodeNameSelector === "*" ? + function() { + return true; + } : + function( elem ) { + return elem.nodeName && elem.nodeName.toLowerCase() === nodeName; + }; + }, + + "CLASS": function( className ) { + var pattern = classCache[ className + " " ]; + + return pattern || + ( pattern = new RegExp( "(^|" + whitespace + + ")" + className + "(" + whitespace + "|$)" ) ) && classCache( + className, function( elem ) { + return pattern.test( + typeof elem.className === "string" && elem.className || + typeof elem.getAttribute !== "undefined" && + elem.getAttribute( "class" ) || + "" + ); + } ); + }, + + "ATTR": function( name, operator, check ) { + return function( elem ) { + var result = Sizzle.attr( elem, name ); + + if ( result == null ) { + return operator === "!="; + } + if ( !operator ) { + return true; + } + + result += ""; + + /* eslint-disable max-len */ + + return operator === "=" ? result === check : + operator === "!=" ? result !== check : + operator === "^=" ? check && result.indexOf( check ) === 0 : + operator === "*=" ? check && result.indexOf( check ) > -1 : + operator === "$=" ? check && result.slice( -check.length ) === check : + operator === "~=" ? ( " " + result.replace( rwhitespace, " " ) + " " ).indexOf( check ) > -1 : + operator === "|=" ? result === check || result.slice( 0, check.length + 1 ) === check + "-" : + false; + /* eslint-enable max-len */ + + }; + }, + + "CHILD": function( type, what, _argument, first, last ) { + var simple = type.slice( 0, 3 ) !== "nth", + forward = type.slice( -4 ) !== "last", + ofType = what === "of-type"; + + return first === 1 && last === 0 ? + + // Shortcut for :nth-*(n) + function( elem ) { + return !!elem.parentNode; + } : + + function( elem, _context, xml ) { + var cache, uniqueCache, outerCache, node, nodeIndex, start, + dir = simple !== forward ? "nextSibling" : "previousSibling", + parent = elem.parentNode, + name = ofType && elem.nodeName.toLowerCase(), + useCache = !xml && !ofType, + diff = false; + + if ( parent ) { + + // :(first|last|only)-(child|of-type) + if ( simple ) { + while ( dir ) { + node = elem; + while ( ( node = node[ dir ] ) ) { + if ( ofType ? + node.nodeName.toLowerCase() === name : + node.nodeType === 1 ) { + + return false; + } + } + + // Reverse direction for :only-* (if we haven't yet done so) + start = dir = type === "only" && !start && "nextSibling"; + } + return true; + } + + start = [ forward ? parent.firstChild : parent.lastChild ]; + + // non-xml :nth-child(...) stores cache data on `parent` + if ( forward && useCache ) { + + // Seek `elem` from a previously-cached index + + // ...in a gzip-friendly way + node = parent; + outerCache = node[ expando ] || ( node[ expando ] = {} ); + + // Support: IE <9 only + // Defend against cloned attroperties (jQuery gh-1709) + uniqueCache = outerCache[ node.uniqueID ] || + ( outerCache[ node.uniqueID ] = {} ); + + cache = uniqueCache[ type ] || []; + nodeIndex = cache[ 0 ] === dirruns && cache[ 1 ]; + diff = nodeIndex && cache[ 2 ]; + node = nodeIndex && parent.childNodes[ nodeIndex ]; + + while ( ( node = ++nodeIndex && node && node[ dir ] || + + // Fallback to seeking `elem` from the start + ( diff = nodeIndex = 0 ) || start.pop() ) ) { + + // When found, cache indexes on `parent` and break + if ( node.nodeType === 1 && ++diff && node === elem ) { + uniqueCache[ type ] = [ dirruns, nodeIndex, diff ]; + break; + } + } + + } else { + + // Use previously-cached element index if available + if ( useCache ) { + + // ...in a gzip-friendly way + node = elem; + outerCache = node[ expando ] || ( node[ expando ] = {} ); + + // Support: IE <9 only + // Defend against cloned attroperties (jQuery gh-1709) + uniqueCache = outerCache[ node.uniqueID ] || + ( outerCache[ node.uniqueID ] = {} ); + + cache = uniqueCache[ type ] || []; + nodeIndex = cache[ 0 ] === dirruns && cache[ 1 ]; + diff = nodeIndex; + } + + // xml :nth-child(...) + // or :nth-last-child(...) or :nth(-last)?-of-type(...) + if ( diff === false ) { + + // Use the same loop as above to seek `elem` from the start + while ( ( node = ++nodeIndex && node && node[ dir ] || + ( diff = nodeIndex = 0 ) || start.pop() ) ) { + + if ( ( ofType ? + node.nodeName.toLowerCase() === name : + node.nodeType === 1 ) && + ++diff ) { + + // Cache the index of each encountered element + if ( useCache ) { + outerCache = node[ expando ] || + ( node[ expando ] = {} ); + + // Support: IE <9 only + // Defend against cloned attroperties (jQuery gh-1709) + uniqueCache = outerCache[ node.uniqueID ] || + ( outerCache[ node.uniqueID ] = {} ); + + uniqueCache[ type ] = [ dirruns, diff ]; + } + + if ( node === elem ) { + break; + } + } + } + } + } + + // Incorporate the offset, then check against cycle size + diff -= last; + return diff === first || ( diff % first === 0 && diff / first >= 0 ); + } + }; + }, + + "PSEUDO": function( pseudo, argument ) { + + // pseudo-class names are case-insensitive + // http://www.w3.org/TR/selectors/#pseudo-classes + // Prioritize by case sensitivity in case custom pseudos are added with uppercase letters + // Remember that setFilters inherits from pseudos + var args, + fn = Expr.pseudos[ pseudo ] || Expr.setFilters[ pseudo.toLowerCase() ] || + Sizzle.error( "unsupported pseudo: " + pseudo ); + + // The user may use createPseudo to indicate that + // arguments are needed to create the filter function + // just as Sizzle does + if ( fn[ expando ] ) { + return fn( argument ); + } + + // But maintain support for old signatures + if ( fn.length > 1 ) { + args = [ pseudo, pseudo, "", argument ]; + return Expr.setFilters.hasOwnProperty( pseudo.toLowerCase() ) ? + markFunction( function( seed, matches ) { + var idx, + matched = fn( seed, argument ), + i = matched.length; + while ( i-- ) { + idx = indexOf( seed, matched[ i ] ); + seed[ idx ] = !( matches[ idx ] = matched[ i ] ); + } + } ) : + function( elem ) { + return fn( elem, 0, args ); + }; + } + + return fn; + } + }, + + pseudos: { + + // Potentially complex pseudos + "not": markFunction( function( selector ) { + + // Trim the selector passed to compile + // to avoid treating leading and trailing + // spaces as combinators + var input = [], + results = [], + matcher = compile( selector.replace( rtrim, "$1" ) ); + + return matcher[ expando ] ? + markFunction( function( seed, matches, _context, xml ) { + var elem, + unmatched = matcher( seed, null, xml, [] ), + i = seed.length; + + // Match elements unmatched by `matcher` + while ( i-- ) { + if ( ( elem = unmatched[ i ] ) ) { + seed[ i ] = !( matches[ i ] = elem ); + } + } + } ) : + function( elem, _context, xml ) { + input[ 0 ] = elem; + matcher( input, null, xml, results ); + + // Don't keep the element (issue #299) + input[ 0 ] = null; + return !results.pop(); + }; + } ), + + "has": markFunction( function( selector ) { + return function( elem ) { + return Sizzle( selector, elem ).length > 0; + }; + } ), + + "contains": markFunction( function( text ) { + text = text.replace( runescape, funescape ); + return function( elem ) { + return ( elem.textContent || getText( elem ) ).indexOf( text ) > -1; + }; + } ), + + // "Whether an element is represented by a :lang() selector + // is based solely on the element's language value + // being equal to the identifier C, + // or beginning with the identifier C immediately followed by "-". + // The matching of C against the element's language value is performed case-insensitively. + // The identifier C does not have to be a valid language name." + // http://www.w3.org/TR/selectors/#lang-pseudo + "lang": markFunction( function( lang ) { + + // lang value must be a valid identifier + if ( !ridentifier.test( lang || "" ) ) { + Sizzle.error( "unsupported lang: " + lang ); + } + lang = lang.replace( runescape, funescape ).toLowerCase(); + return function( elem ) { + var elemLang; + do { + if ( ( elemLang = documentIsHTML ? + elem.lang : + elem.getAttribute( "xml:lang" ) || elem.getAttribute( "lang" ) ) ) { + + elemLang = elemLang.toLowerCase(); + return elemLang === lang || elemLang.indexOf( lang + "-" ) === 0; + } + } while ( ( elem = elem.parentNode ) && elem.nodeType === 1 ); + return false; + }; + } ), + + // Miscellaneous + "target": function( elem ) { + var hash = window.location && window.location.hash; + return hash && hash.slice( 1 ) === elem.id; + }, + + "root": function( elem ) { + return elem === docElem; + }, + + "focus": function( elem ) { + return elem === document.activeElement && + ( !document.hasFocus || document.hasFocus() ) && + !!( elem.type || elem.href || ~elem.tabIndex ); + }, + + // Boolean properties + "enabled": createDisabledPseudo( false ), + "disabled": createDisabledPseudo( true ), + + "checked": function( elem ) { + + // In CSS3, :checked should return both checked and selected elements + // http://www.w3.org/TR/2011/REC-css3-selectors-20110929/#checked + var nodeName = elem.nodeName.toLowerCase(); + return ( nodeName === "input" && !!elem.checked ) || + ( nodeName === "option" && !!elem.selected ); + }, + + "selected": function( elem ) { + + // Accessing this property makes selected-by-default + // options in Safari work properly + if ( elem.parentNode ) { + // eslint-disable-next-line no-unused-expressions + elem.parentNode.selectedIndex; + } + + return elem.selected === true; + }, + + // Contents + "empty": function( elem ) { + + // http://www.w3.org/TR/selectors/#empty-pseudo + // :empty is negated by element (1) or content nodes (text: 3; cdata: 4; entity ref: 5), + // but not by others (comment: 8; processing instruction: 7; etc.) + // nodeType < 6 works because attributes (2) do not appear as children + for ( elem = elem.firstChild; elem; elem = elem.nextSibling ) { + if ( elem.nodeType < 6 ) { + return false; + } + } + return true; + }, + + "parent": function( elem ) { + return !Expr.pseudos[ "empty" ]( elem ); + }, + + // Element/input types + "header": function( elem ) { + return rheader.test( elem.nodeName ); + }, + + "input": function( elem ) { + return rinputs.test( elem.nodeName ); + }, + + "button": function( elem ) { + var name = elem.nodeName.toLowerCase(); + return name === "input" && elem.type === "button" || name === "button"; + }, + + "text": function( elem ) { + var attr; + return elem.nodeName.toLowerCase() === "input" && + elem.type === "text" && + + // Support: IE<8 + // New HTML5 attribute values (e.g., "search") appear with elem.type === "text" + ( ( attr = elem.getAttribute( "type" ) ) == null || + attr.toLowerCase() === "text" ); + }, + + // Position-in-collection + "first": createPositionalPseudo( function() { + return [ 0 ]; + } ), + + "last": createPositionalPseudo( function( _matchIndexes, length ) { + return [ length - 1 ]; + } ), + + "eq": createPositionalPseudo( function( _matchIndexes, length, argument ) { + return [ argument < 0 ? argument + length : argument ]; + } ), + + "even": createPositionalPseudo( function( matchIndexes, length ) { + var i = 0; + for ( ; i < length; i += 2 ) { + matchIndexes.push( i ); + } + return matchIndexes; + } ), + + "odd": createPositionalPseudo( function( matchIndexes, length ) { + var i = 1; + for ( ; i < length; i += 2 ) { + matchIndexes.push( i ); + } + return matchIndexes; + } ), + + "lt": createPositionalPseudo( function( matchIndexes, length, argument ) { + var i = argument < 0 ? + argument + length : + argument > length ? + length : + argument; + for ( ; --i >= 0; ) { + matchIndexes.push( i ); + } + return matchIndexes; + } ), + + "gt": createPositionalPseudo( function( matchIndexes, length, argument ) { + var i = argument < 0 ? argument + length : argument; + for ( ; ++i < length; ) { + matchIndexes.push( i ); + } + return matchIndexes; + } ) + } +}; + +Expr.pseudos[ "nth" ] = Expr.pseudos[ "eq" ]; + +// Add button/input type pseudos +for ( i in { radio: true, checkbox: true, file: true, password: true, image: true } ) { + Expr.pseudos[ i ] = createInputPseudo( i ); +} +for ( i in { submit: true, reset: true } ) { + Expr.pseudos[ i ] = createButtonPseudo( i ); +} + +// Easy API for creating new setFilters +function setFilters() {} +setFilters.prototype = Expr.filters = Expr.pseudos; +Expr.setFilters = new setFilters(); + +tokenize = Sizzle.tokenize = function( selector, parseOnly ) { + var matched, match, tokens, type, + soFar, groups, preFilters, + cached = tokenCache[ selector + " " ]; + + if ( cached ) { + return parseOnly ? 0 : cached.slice( 0 ); + } + + soFar = selector; + groups = []; + preFilters = Expr.preFilter; + + while ( soFar ) { + + // Comma and first run + if ( !matched || ( match = rcomma.exec( soFar ) ) ) { + if ( match ) { + + // Don't consume trailing commas as valid + soFar = soFar.slice( match[ 0 ].length ) || soFar; + } + groups.push( ( tokens = [] ) ); + } + + matched = false; + + // Combinators + if ( ( match = rcombinators.exec( soFar ) ) ) { + matched = match.shift(); + tokens.push( { + value: matched, + + // Cast descendant combinators to space + type: match[ 0 ].replace( rtrim, " " ) + } ); + soFar = soFar.slice( matched.length ); + } + + // Filters + for ( type in Expr.filter ) { + if ( ( match = matchExpr[ type ].exec( soFar ) ) && ( !preFilters[ type ] || + ( match = preFilters[ type ]( match ) ) ) ) { + matched = match.shift(); + tokens.push( { + value: matched, + type: type, + matches: match + } ); + soFar = soFar.slice( matched.length ); + } + } + + if ( !matched ) { + break; + } + } + + // Return the length of the invalid excess + // if we're just parsing + // Otherwise, throw an error or return tokens + return parseOnly ? + soFar.length : + soFar ? + Sizzle.error( selector ) : + + // Cache the tokens + tokenCache( selector, groups ).slice( 0 ); +}; + +function toSelector( tokens ) { + var i = 0, + len = tokens.length, + selector = ""; + for ( ; i < len; i++ ) { + selector += tokens[ i ].value; + } + return selector; +} + +function addCombinator( matcher, combinator, base ) { + var dir = combinator.dir, + skip = combinator.next, + key = skip || dir, + checkNonElements = base && key === "parentNode", + doneName = done++; + + return combinator.first ? + + // Check against closest ancestor/preceding element + function( elem, context, xml ) { + while ( ( elem = elem[ dir ] ) ) { + if ( elem.nodeType === 1 || checkNonElements ) { + return matcher( elem, context, xml ); + } + } + return false; + } : + + // Check against all ancestor/preceding elements + function( elem, context, xml ) { + var oldCache, uniqueCache, outerCache, + newCache = [ dirruns, doneName ]; + + // We can't set arbitrary data on XML nodes, so they don't benefit from combinator caching + if ( xml ) { + while ( ( elem = elem[ dir ] ) ) { + if ( elem.nodeType === 1 || checkNonElements ) { + if ( matcher( elem, context, xml ) ) { + return true; + } + } + } + } else { + while ( ( elem = elem[ dir ] ) ) { + if ( elem.nodeType === 1 || checkNonElements ) { + outerCache = elem[ expando ] || ( elem[ expando ] = {} ); + + // Support: IE <9 only + // Defend against cloned attroperties (jQuery gh-1709) + uniqueCache = outerCache[ elem.uniqueID ] || + ( outerCache[ elem.uniqueID ] = {} ); + + if ( skip && skip === elem.nodeName.toLowerCase() ) { + elem = elem[ dir ] || elem; + } else if ( ( oldCache = uniqueCache[ key ] ) && + oldCache[ 0 ] === dirruns && oldCache[ 1 ] === doneName ) { + + // Assign to newCache so results back-propagate to previous elements + return ( newCache[ 2 ] = oldCache[ 2 ] ); + } else { + + // Reuse newcache so results back-propagate to previous elements + uniqueCache[ key ] = newCache; + + // A match means we're done; a fail means we have to keep checking + if ( ( newCache[ 2 ] = matcher( elem, context, xml ) ) ) { + return true; + } + } + } + } + } + return false; + }; +} + +function elementMatcher( matchers ) { + return matchers.length > 1 ? + function( elem, context, xml ) { + var i = matchers.length; + while ( i-- ) { + if ( !matchers[ i ]( elem, context, xml ) ) { + return false; + } + } + return true; + } : + matchers[ 0 ]; +} + +function multipleContexts( selector, contexts, results ) { + var i = 0, + len = contexts.length; + for ( ; i < len; i++ ) { + Sizzle( selector, contexts[ i ], results ); + } + return results; +} + +function condense( unmatched, map, filter, context, xml ) { + var elem, + newUnmatched = [], + i = 0, + len = unmatched.length, + mapped = map != null; + + for ( ; i < len; i++ ) { + if ( ( elem = unmatched[ i ] ) ) { + if ( !filter || filter( elem, context, xml ) ) { + newUnmatched.push( elem ); + if ( mapped ) { + map.push( i ); + } + } + } + } + + return newUnmatched; +} + +function setMatcher( preFilter, selector, matcher, postFilter, postFinder, postSelector ) { + if ( postFilter && !postFilter[ expando ] ) { + postFilter = setMatcher( postFilter ); + } + if ( postFinder && !postFinder[ expando ] ) { + postFinder = setMatcher( postFinder, postSelector ); + } + return markFunction( function( seed, results, context, xml ) { + var temp, i, elem, + preMap = [], + postMap = [], + preexisting = results.length, + + // Get initial elements from seed or context + elems = seed || multipleContexts( + selector || "*", + context.nodeType ? [ context ] : context, + [] + ), + + // Prefilter to get matcher input, preserving a map for seed-results synchronization + matcherIn = preFilter && ( seed || !selector ) ? + condense( elems, preMap, preFilter, context, xml ) : + elems, + + matcherOut = matcher ? + + // If we have a postFinder, or filtered seed, or non-seed postFilter or preexisting results, + postFinder || ( seed ? preFilter : preexisting || postFilter ) ? + + // ...intermediate processing is necessary + [] : + + // ...otherwise use results directly + results : + matcherIn; + + // Find primary matches + if ( matcher ) { + matcher( matcherIn, matcherOut, context, xml ); + } + + // Apply postFilter + if ( postFilter ) { + temp = condense( matcherOut, postMap ); + postFilter( temp, [], context, xml ); + + // Un-match failing elements by moving them back to matcherIn + i = temp.length; + while ( i-- ) { + if ( ( elem = temp[ i ] ) ) { + matcherOut[ postMap[ i ] ] = !( matcherIn[ postMap[ i ] ] = elem ); + } + } + } + + if ( seed ) { + if ( postFinder || preFilter ) { + if ( postFinder ) { + + // Get the final matcherOut by condensing this intermediate into postFinder contexts + temp = []; + i = matcherOut.length; + while ( i-- ) { + if ( ( elem = matcherOut[ i ] ) ) { + + // Restore matcherIn since elem is not yet a final match + temp.push( ( matcherIn[ i ] = elem ) ); + } + } + postFinder( null, ( matcherOut = [] ), temp, xml ); + } + + // Move matched elements from seed to results to keep them synchronized + i = matcherOut.length; + while ( i-- ) { + if ( ( elem = matcherOut[ i ] ) && + ( temp = postFinder ? indexOf( seed, elem ) : preMap[ i ] ) > -1 ) { + + seed[ temp ] = !( results[ temp ] = elem ); + } + } + } + + // Add elements to results, through postFinder if defined + } else { + matcherOut = condense( + matcherOut === results ? + matcherOut.splice( preexisting, matcherOut.length ) : + matcherOut + ); + if ( postFinder ) { + postFinder( null, results, matcherOut, xml ); + } else { + push.apply( results, matcherOut ); + } + } + } ); +} + +function matcherFromTokens( tokens ) { + var checkContext, matcher, j, + len = tokens.length, + leadingRelative = Expr.relative[ tokens[ 0 ].type ], + implicitRelative = leadingRelative || Expr.relative[ " " ], + i = leadingRelative ? 1 : 0, + + // The foundational matcher ensures that elements are reachable from top-level context(s) + matchContext = addCombinator( function( elem ) { + return elem === checkContext; + }, implicitRelative, true ), + matchAnyContext = addCombinator( function( elem ) { + return indexOf( checkContext, elem ) > -1; + }, implicitRelative, true ), + matchers = [ function( elem, context, xml ) { + var ret = ( !leadingRelative && ( xml || context !== outermostContext ) ) || ( + ( checkContext = context ).nodeType ? + matchContext( elem, context, xml ) : + matchAnyContext( elem, context, xml ) ); + + // Avoid hanging onto element (issue #299) + checkContext = null; + return ret; + } ]; + + for ( ; i < len; i++ ) { + if ( ( matcher = Expr.relative[ tokens[ i ].type ] ) ) { + matchers = [ addCombinator( elementMatcher( matchers ), matcher ) ]; + } else { + matcher = Expr.filter[ tokens[ i ].type ].apply( null, tokens[ i ].matches ); + + // Return special upon seeing a positional matcher + if ( matcher[ expando ] ) { + + // Find the next relative operator (if any) for proper handling + j = ++i; + for ( ; j < len; j++ ) { + if ( Expr.relative[ tokens[ j ].type ] ) { + break; + } + } + return setMatcher( + i > 1 && elementMatcher( matchers ), + i > 1 && toSelector( + + // If the preceding token was a descendant combinator, insert an implicit any-element `*` + tokens + .slice( 0, i - 1 ) + .concat( { value: tokens[ i - 2 ].type === " " ? "*" : "" } ) + ).replace( rtrim, "$1" ), + matcher, + i < j && matcherFromTokens( tokens.slice( i, j ) ), + j < len && matcherFromTokens( ( tokens = tokens.slice( j ) ) ), + j < len && toSelector( tokens ) + ); + } + matchers.push( matcher ); + } + } + + return elementMatcher( matchers ); +} + +function matcherFromGroupMatchers( elementMatchers, setMatchers ) { + var bySet = setMatchers.length > 0, + byElement = elementMatchers.length > 0, + superMatcher = function( seed, context, xml, results, outermost ) { + var elem, j, matcher, + matchedCount = 0, + i = "0", + unmatched = seed && [], + setMatched = [], + contextBackup = outermostContext, + + // We must always have either seed elements or outermost context + elems = seed || byElement && Expr.find[ "TAG" ]( "*", outermost ), + + // Use integer dirruns iff this is the outermost matcher + dirrunsUnique = ( dirruns += contextBackup == null ? 1 : Math.random() || 0.1 ), + len = elems.length; + + if ( outermost ) { + + // Support: IE 11+, Edge 17 - 18+ + // IE/Edge sometimes throw a "Permission denied" error when strict-comparing + // two documents; shallow comparisons work. + // eslint-disable-next-line eqeqeq + outermostContext = context == document || context || outermost; + } + + // Add elements passing elementMatchers directly to results + // Support: IE<9, Safari + // Tolerate NodeList properties (IE: "length"; Safari: ) matching elements by id + for ( ; i !== len && ( elem = elems[ i ] ) != null; i++ ) { + if ( byElement && elem ) { + j = 0; + + // Support: IE 11+, Edge 17 - 18+ + // IE/Edge sometimes throw a "Permission denied" error when strict-comparing + // two documents; shallow comparisons work. + // eslint-disable-next-line eqeqeq + if ( !context && elem.ownerDocument != document ) { + setDocument( elem ); + xml = !documentIsHTML; + } + while ( ( matcher = elementMatchers[ j++ ] ) ) { + if ( matcher( elem, context || document, xml ) ) { + results.push( elem ); + break; + } + } + if ( outermost ) { + dirruns = dirrunsUnique; + } + } + + // Track unmatched elements for set filters + if ( bySet ) { + + // They will have gone through all possible matchers + if ( ( elem = !matcher && elem ) ) { + matchedCount--; + } + + // Lengthen the array for every element, matched or not + if ( seed ) { + unmatched.push( elem ); + } + } + } + + // `i` is now the count of elements visited above, and adding it to `matchedCount` + // makes the latter nonnegative. + matchedCount += i; + + // Apply set filters to unmatched elements + // NOTE: This can be skipped if there are no unmatched elements (i.e., `matchedCount` + // equals `i`), unless we didn't visit _any_ elements in the above loop because we have + // no element matchers and no seed. + // Incrementing an initially-string "0" `i` allows `i` to remain a string only in that + // case, which will result in a "00" `matchedCount` that differs from `i` but is also + // numerically zero. + if ( bySet && i !== matchedCount ) { + j = 0; + while ( ( matcher = setMatchers[ j++ ] ) ) { + matcher( unmatched, setMatched, context, xml ); + } + + if ( seed ) { + + // Reintegrate element matches to eliminate the need for sorting + if ( matchedCount > 0 ) { + while ( i-- ) { + if ( !( unmatched[ i ] || setMatched[ i ] ) ) { + setMatched[ i ] = pop.call( results ); + } + } + } + + // Discard index placeholder values to get only actual matches + setMatched = condense( setMatched ); + } + + // Add matches to results + push.apply( results, setMatched ); + + // Seedless set matches succeeding multiple successful matchers stipulate sorting + if ( outermost && !seed && setMatched.length > 0 && + ( matchedCount + setMatchers.length ) > 1 ) { + + Sizzle.uniqueSort( results ); + } + } + + // Override manipulation of globals by nested matchers + if ( outermost ) { + dirruns = dirrunsUnique; + outermostContext = contextBackup; + } + + return unmatched; + }; + + return bySet ? + markFunction( superMatcher ) : + superMatcher; +} + +compile = Sizzle.compile = function( selector, match /* Internal Use Only */ ) { + var i, + setMatchers = [], + elementMatchers = [], + cached = compilerCache[ selector + " " ]; + + if ( !cached ) { + + // Generate a function of recursive functions that can be used to check each element + if ( !match ) { + match = tokenize( selector ); + } + i = match.length; + while ( i-- ) { + cached = matcherFromTokens( match[ i ] ); + if ( cached[ expando ] ) { + setMatchers.push( cached ); + } else { + elementMatchers.push( cached ); + } + } + + // Cache the compiled function + cached = compilerCache( + selector, + matcherFromGroupMatchers( elementMatchers, setMatchers ) + ); + + // Save selector and tokenization + cached.selector = selector; + } + return cached; +}; + +/** + * A low-level selection function that works with Sizzle's compiled + * selector functions + * @param {String|Function} selector A selector or a pre-compiled + * selector function built with Sizzle.compile + * @param {Element} context + * @param {Array} [results] + * @param {Array} [seed] A set of elements to match against + */ +select = Sizzle.select = function( selector, context, results, seed ) { + var i, tokens, token, type, find, + compiled = typeof selector === "function" && selector, + match = !seed && tokenize( ( selector = compiled.selector || selector ) ); + + results = results || []; + + // Try to minimize operations if there is only one selector in the list and no seed + // (the latter of which guarantees us context) + if ( match.length === 1 ) { + + // Reduce context if the leading compound selector is an ID + tokens = match[ 0 ] = match[ 0 ].slice( 0 ); + if ( tokens.length > 2 && ( token = tokens[ 0 ] ).type === "ID" && + context.nodeType === 9 && documentIsHTML && Expr.relative[ tokens[ 1 ].type ] ) { + + context = ( Expr.find[ "ID" ]( token.matches[ 0 ] + .replace( runescape, funescape ), context ) || [] )[ 0 ]; + if ( !context ) { + return results; + + // Precompiled matchers will still verify ancestry, so step up a level + } else if ( compiled ) { + context = context.parentNode; + } + + selector = selector.slice( tokens.shift().value.length ); + } + + // Fetch a seed set for right-to-left matching + i = matchExpr[ "needsContext" ].test( selector ) ? 0 : tokens.length; + while ( i-- ) { + token = tokens[ i ]; + + // Abort if we hit a combinator + if ( Expr.relative[ ( type = token.type ) ] ) { + break; + } + if ( ( find = Expr.find[ type ] ) ) { + + // Search, expanding context for leading sibling combinators + if ( ( seed = find( + token.matches[ 0 ].replace( runescape, funescape ), + rsibling.test( tokens[ 0 ].type ) && testContext( context.parentNode ) || + context + ) ) ) { + + // If seed is empty or no tokens remain, we can return early + tokens.splice( i, 1 ); + selector = seed.length && toSelector( tokens ); + if ( !selector ) { + push.apply( results, seed ); + return results; + } + + break; + } + } + } + } + + // Compile and execute a filtering function if one is not provided + // Provide `match` to avoid retokenization if we modified the selector above + ( compiled || compile( selector, match ) )( + seed, + context, + !documentIsHTML, + results, + !context || rsibling.test( selector ) && testContext( context.parentNode ) || context + ); + return results; +}; + +// One-time assignments + +// Sort stability +support.sortStable = expando.split( "" ).sort( sortOrder ).join( "" ) === expando; + +// Support: Chrome 14-35+ +// Always assume duplicates if they aren't passed to the comparison function +support.detectDuplicates = !!hasDuplicate; + +// Initialize against the default document +setDocument(); + +// Support: Webkit<537.32 - Safari 6.0.3/Chrome 25 (fixed in Chrome 27) +// Detached nodes confoundingly follow *each other* +support.sortDetached = assert( function( el ) { + + // Should return 1, but returns 4 (following) + return el.compareDocumentPosition( document.createElement( "fieldset" ) ) & 1; +} ); + +// Support: IE<8 +// Prevent attribute/property "interpolation" +// https://msdn.microsoft.com/en-us/library/ms536429%28VS.85%29.aspx +if ( !assert( function( el ) { + el.innerHTML = ""; + return el.firstChild.getAttribute( "href" ) === "#"; +} ) ) { + addHandle( "type|href|height|width", function( elem, name, isXML ) { + if ( !isXML ) { + return elem.getAttribute( name, name.toLowerCase() === "type" ? 1 : 2 ); + } + } ); +} + +// Support: IE<9 +// Use defaultValue in place of getAttribute("value") +if ( !support.attributes || !assert( function( el ) { + el.innerHTML = ""; + el.firstChild.setAttribute( "value", "" ); + return el.firstChild.getAttribute( "value" ) === ""; +} ) ) { + addHandle( "value", function( elem, _name, isXML ) { + if ( !isXML && elem.nodeName.toLowerCase() === "input" ) { + return elem.defaultValue; + } + } ); +} + +// Support: IE<9 +// Use getAttributeNode to fetch booleans when getAttribute lies +if ( !assert( function( el ) { + return el.getAttribute( "disabled" ) == null; +} ) ) { + addHandle( booleans, function( elem, name, isXML ) { + var val; + if ( !isXML ) { + return elem[ name ] === true ? name.toLowerCase() : + ( val = elem.getAttributeNode( name ) ) && val.specified ? + val.value : + null; + } + } ); +} + +return Sizzle; + +} )( window ); + + + +jQuery.find = Sizzle; +jQuery.expr = Sizzle.selectors; + +// Deprecated +jQuery.expr[ ":" ] = jQuery.expr.pseudos; +jQuery.uniqueSort = jQuery.unique = Sizzle.uniqueSort; +jQuery.text = Sizzle.getText; +jQuery.isXMLDoc = Sizzle.isXML; +jQuery.contains = Sizzle.contains; +jQuery.escapeSelector = Sizzle.escape; + + + + +var dir = function( elem, dir, until ) { + var matched = [], + truncate = until !== undefined; + + while ( ( elem = elem[ dir ] ) && elem.nodeType !== 9 ) { + if ( elem.nodeType === 1 ) { + if ( truncate && jQuery( elem ).is( until ) ) { + break; + } + matched.push( elem ); + } + } + return matched; +}; + + +var siblings = function( n, elem ) { + var matched = []; + + for ( ; n; n = n.nextSibling ) { + if ( n.nodeType === 1 && n !== elem ) { + matched.push( n ); + } + } + + return matched; +}; + + +var rneedsContext = jQuery.expr.match.needsContext; + + + +function nodeName( elem, name ) { + + return elem.nodeName && elem.nodeName.toLowerCase() === name.toLowerCase(); + +} +var rsingleTag = ( /^<([a-z][^\/\0>:\x20\t\r\n\f]*)[\x20\t\r\n\f]*\/?>(?:<\/\1>|)$/i ); + + + +// Implement the identical functionality for filter and not +function winnow( elements, qualifier, not ) { + if ( isFunction( qualifier ) ) { + return jQuery.grep( elements, function( elem, i ) { + return !!qualifier.call( elem, i, elem ) !== not; + } ); + } + + // Single element + if ( qualifier.nodeType ) { + return jQuery.grep( elements, function( elem ) { + return ( elem === qualifier ) !== not; + } ); + } + + // Arraylike of elements (jQuery, arguments, Array) + if ( typeof qualifier !== "string" ) { + return jQuery.grep( elements, function( elem ) { + return ( indexOf.call( qualifier, elem ) > -1 ) !== not; + } ); + } + + // Filtered directly for both simple and complex selectors + return jQuery.filter( qualifier, elements, not ); +} + +jQuery.filter = function( expr, elems, not ) { + var elem = elems[ 0 ]; + + if ( not ) { + expr = ":not(" + expr + ")"; + } + + if ( elems.length === 1 && elem.nodeType === 1 ) { + return jQuery.find.matchesSelector( elem, expr ) ? [ elem ] : []; + } + + return jQuery.find.matches( expr, jQuery.grep( elems, function( elem ) { + return elem.nodeType === 1; + } ) ); +}; + +jQuery.fn.extend( { + find: function( selector ) { + var i, ret, + len = this.length, + self = this; + + if ( typeof selector !== "string" ) { + return this.pushStack( jQuery( selector ).filter( function() { + for ( i = 0; i < len; i++ ) { + if ( jQuery.contains( self[ i ], this ) ) { + return true; + } + } + } ) ); + } + + ret = this.pushStack( [] ); + + for ( i = 0; i < len; i++ ) { + jQuery.find( selector, self[ i ], ret ); + } + + return len > 1 ? jQuery.uniqueSort( ret ) : ret; + }, + filter: function( selector ) { + return this.pushStack( winnow( this, selector || [], false ) ); + }, + not: function( selector ) { + return this.pushStack( winnow( this, selector || [], true ) ); + }, + is: function( selector ) { + return !!winnow( + this, + + // If this is a positional/relative selector, check membership in the returned set + // so $("p:first").is("p:last") won't return true for a doc with two "p". + typeof selector === "string" && rneedsContext.test( selector ) ? + jQuery( selector ) : + selector || [], + false + ).length; + } +} ); + + +// Initialize a jQuery object + + +// A central reference to the root jQuery(document) +var rootjQuery, + + // A simple way to check for HTML strings + // Prioritize #id over to avoid XSS via location.hash (#9521) + // Strict HTML recognition (#11290: must start with <) + // Shortcut simple #id case for speed + rquickExpr = /^(?:\s*(<[\w\W]+>)[^>]*|#([\w-]+))$/, + + init = jQuery.fn.init = function( selector, context, root ) { + var match, elem; + + // HANDLE: $(""), $(null), $(undefined), $(false) + if ( !selector ) { + return this; + } + + // Method init() accepts an alternate rootjQuery + // so migrate can support jQuery.sub (gh-2101) + root = root || rootjQuery; + + // Handle HTML strings + if ( typeof selector === "string" ) { + if ( selector[ 0 ] === "<" && + selector[ selector.length - 1 ] === ">" && + selector.length >= 3 ) { + + // Assume that strings that start and end with <> are HTML and skip the regex check + match = [ null, selector, null ]; + + } else { + match = rquickExpr.exec( selector ); + } + + // Match html or make sure no context is specified for #id + if ( match && ( match[ 1 ] || !context ) ) { + + // HANDLE: $(html) -> $(array) + if ( match[ 1 ] ) { + context = context instanceof jQuery ? context[ 0 ] : context; + + // Option to run scripts is true for back-compat + // Intentionally let the error be thrown if parseHTML is not present + jQuery.merge( this, jQuery.parseHTML( + match[ 1 ], + context && context.nodeType ? context.ownerDocument || context : document, + true + ) ); + + // HANDLE: $(html, props) + if ( rsingleTag.test( match[ 1 ] ) && jQuery.isPlainObject( context ) ) { + for ( match in context ) { + + // Properties of context are called as methods if possible + if ( isFunction( this[ match ] ) ) { + this[ match ]( context[ match ] ); + + // ...and otherwise set as attributes + } else { + this.attr( match, context[ match ] ); + } + } + } + + return this; + + // HANDLE: $(#id) + } else { + elem = document.getElementById( match[ 2 ] ); + + if ( elem ) { + + // Inject the element directly into the jQuery object + this[ 0 ] = elem; + this.length = 1; + } + return this; + } + + // HANDLE: $(expr, $(...)) + } else if ( !context || context.jquery ) { + return ( context || root ).find( selector ); + + // HANDLE: $(expr, context) + // (which is just equivalent to: $(context).find(expr) + } else { + return this.constructor( context ).find( selector ); + } + + // HANDLE: $(DOMElement) + } else if ( selector.nodeType ) { + this[ 0 ] = selector; + this.length = 1; + return this; + + // HANDLE: $(function) + // Shortcut for document ready + } else if ( isFunction( selector ) ) { + return root.ready !== undefined ? + root.ready( selector ) : + + // Execute immediately if ready is not present + selector( jQuery ); + } + + return jQuery.makeArray( selector, this ); + }; + +// Give the init function the jQuery prototype for later instantiation +init.prototype = jQuery.fn; + +// Initialize central reference +rootjQuery = jQuery( document ); + + +var rparentsprev = /^(?:parents|prev(?:Until|All))/, + + // Methods guaranteed to produce a unique set when starting from a unique set + guaranteedUnique = { + children: true, + contents: true, + next: true, + prev: true + }; + +jQuery.fn.extend( { + has: function( target ) { + var targets = jQuery( target, this ), + l = targets.length; + + return this.filter( function() { + var i = 0; + for ( ; i < l; i++ ) { + if ( jQuery.contains( this, targets[ i ] ) ) { + return true; + } + } + } ); + }, + + closest: function( selectors, context ) { + var cur, + i = 0, + l = this.length, + matched = [], + targets = typeof selectors !== "string" && jQuery( selectors ); + + // Positional selectors never match, since there's no _selection_ context + if ( !rneedsContext.test( selectors ) ) { + for ( ; i < l; i++ ) { + for ( cur = this[ i ]; cur && cur !== context; cur = cur.parentNode ) { + + // Always skip document fragments + if ( cur.nodeType < 11 && ( targets ? + targets.index( cur ) > -1 : + + // Don't pass non-elements to Sizzle + cur.nodeType === 1 && + jQuery.find.matchesSelector( cur, selectors ) ) ) { + + matched.push( cur ); + break; + } + } + } + } + + return this.pushStack( matched.length > 1 ? jQuery.uniqueSort( matched ) : matched ); + }, + + // Determine the position of an element within the set + index: function( elem ) { + + // No argument, return index in parent + if ( !elem ) { + return ( this[ 0 ] && this[ 0 ].parentNode ) ? this.first().prevAll().length : -1; + } + + // Index in selector + if ( typeof elem === "string" ) { + return indexOf.call( jQuery( elem ), this[ 0 ] ); + } + + // Locate the position of the desired element + return indexOf.call( this, + + // If it receives a jQuery object, the first element is used + elem.jquery ? elem[ 0 ] : elem + ); + }, + + add: function( selector, context ) { + return this.pushStack( + jQuery.uniqueSort( + jQuery.merge( this.get(), jQuery( selector, context ) ) + ) + ); + }, + + addBack: function( selector ) { + return this.add( selector == null ? + this.prevObject : this.prevObject.filter( selector ) + ); + } +} ); + +function sibling( cur, dir ) { + while ( ( cur = cur[ dir ] ) && cur.nodeType !== 1 ) {} + return cur; +} + +jQuery.each( { + parent: function( elem ) { + var parent = elem.parentNode; + return parent && parent.nodeType !== 11 ? parent : null; + }, + parents: function( elem ) { + return dir( elem, "parentNode" ); + }, + parentsUntil: function( elem, _i, until ) { + return dir( elem, "parentNode", until ); + }, + next: function( elem ) { + return sibling( elem, "nextSibling" ); + }, + prev: function( elem ) { + return sibling( elem, "previousSibling" ); + }, + nextAll: function( elem ) { + return dir( elem, "nextSibling" ); + }, + prevAll: function( elem ) { + return dir( elem, "previousSibling" ); + }, + nextUntil: function( elem, _i, until ) { + return dir( elem, "nextSibling", until ); + }, + prevUntil: function( elem, _i, until ) { + return dir( elem, "previousSibling", until ); + }, + siblings: function( elem ) { + return siblings( ( elem.parentNode || {} ).firstChild, elem ); + }, + children: function( elem ) { + return siblings( elem.firstChild ); + }, + contents: function( elem ) { + if ( elem.contentDocument != null && + + // Support: IE 11+ + // elements with no `data` attribute has an object + // `contentDocument` with a `null` prototype. + getProto( elem.contentDocument ) ) { + + return elem.contentDocument; + } + + // Support: IE 9 - 11 only, iOS 7 only, Android Browser <=4.3 only + // Treat the template element as a regular one in browsers that + // don't support it. + if ( nodeName( elem, "template" ) ) { + elem = elem.content || elem; + } + + return jQuery.merge( [], elem.childNodes ); + } +}, function( name, fn ) { + jQuery.fn[ name ] = function( until, selector ) { + var matched = jQuery.map( this, fn, until ); + + if ( name.slice( -5 ) !== "Until" ) { + selector = until; + } + + if ( selector && typeof selector === "string" ) { + matched = jQuery.filter( selector, matched ); + } + + if ( this.length > 1 ) { + + // Remove duplicates + if ( !guaranteedUnique[ name ] ) { + jQuery.uniqueSort( matched ); + } + + // Reverse order for parents* and prev-derivatives + if ( rparentsprev.test( name ) ) { + matched.reverse(); + } + } + + return this.pushStack( matched ); + }; +} ); +var rnothtmlwhite = ( /[^\x20\t\r\n\f]+/g ); + + + +// Convert String-formatted options into Object-formatted ones +function createOptions( options ) { + var object = {}; + jQuery.each( options.match( rnothtmlwhite ) || [], function( _, flag ) { + object[ flag ] = true; + } ); + return object; +} + +/* + * Create a callback list using the following parameters: + * + * options: an optional list of space-separated options that will change how + * the callback list behaves or a more traditional option object + * + * By default a callback list will act like an event callback list and can be + * "fired" multiple times. + * + * Possible options: + * + * once: will ensure the callback list can only be fired once (like a Deferred) + * + * memory: will keep track of previous values and will call any callback added + * after the list has been fired right away with the latest "memorized" + * values (like a Deferred) + * + * unique: will ensure a callback can only be added once (no duplicate in the list) + * + * stopOnFalse: interrupt callings when a callback returns false + * + */ +jQuery.Callbacks = function( options ) { + + // Convert options from String-formatted to Object-formatted if needed + // (we check in cache first) + options = typeof options === "string" ? + createOptions( options ) : + jQuery.extend( {}, options ); + + var // Flag to know if list is currently firing + firing, + + // Last fire value for non-forgettable lists + memory, + + // Flag to know if list was already fired + fired, + + // Flag to prevent firing + locked, + + // Actual callback list + list = [], + + // Queue of execution data for repeatable lists + queue = [], + + // Index of currently firing callback (modified by add/remove as needed) + firingIndex = -1, + + // Fire callbacks + fire = function() { + + // Enforce single-firing + locked = locked || options.once; + + // Execute callbacks for all pending executions, + // respecting firingIndex overrides and runtime changes + fired = firing = true; + for ( ; queue.length; firingIndex = -1 ) { + memory = queue.shift(); + while ( ++firingIndex < list.length ) { + + // Run callback and check for early termination + if ( list[ firingIndex ].apply( memory[ 0 ], memory[ 1 ] ) === false && + options.stopOnFalse ) { + + // Jump to end and forget the data so .add doesn't re-fire + firingIndex = list.length; + memory = false; + } + } + } + + // Forget the data if we're done with it + if ( !options.memory ) { + memory = false; + } + + firing = false; + + // Clean up if we're done firing for good + if ( locked ) { + + // Keep an empty list if we have data for future add calls + if ( memory ) { + list = []; + + // Otherwise, this object is spent + } else { + list = ""; + } + } + }, + + // Actual Callbacks object + self = { + + // Add a callback or a collection of callbacks to the list + add: function() { + if ( list ) { + + // If we have memory from a past run, we should fire after adding + if ( memory && !firing ) { + firingIndex = list.length - 1; + queue.push( memory ); + } + + ( function add( args ) { + jQuery.each( args, function( _, arg ) { + if ( isFunction( arg ) ) { + if ( !options.unique || !self.has( arg ) ) { + list.push( arg ); + } + } else if ( arg && arg.length && toType( arg ) !== "string" ) { + + // Inspect recursively + add( arg ); + } + } ); + } )( arguments ); + + if ( memory && !firing ) { + fire(); + } + } + return this; + }, + + // Remove a callback from the list + remove: function() { + jQuery.each( arguments, function( _, arg ) { + var index; + while ( ( index = jQuery.inArray( arg, list, index ) ) > -1 ) { + list.splice( index, 1 ); + + // Handle firing indexes + if ( index <= firingIndex ) { + firingIndex--; + } + } + } ); + return this; + }, + + // Check if a given callback is in the list. + // If no argument is given, return whether or not list has callbacks attached. + has: function( fn ) { + return fn ? + jQuery.inArray( fn, list ) > -1 : + list.length > 0; + }, + + // Remove all callbacks from the list + empty: function() { + if ( list ) { + list = []; + } + return this; + }, + + // Disable .fire and .add + // Abort any current/pending executions + // Clear all callbacks and values + disable: function() { + locked = queue = []; + list = memory = ""; + return this; + }, + disabled: function() { + return !list; + }, + + // Disable .fire + // Also disable .add unless we have memory (since it would have no effect) + // Abort any pending executions + lock: function() { + locked = queue = []; + if ( !memory && !firing ) { + list = memory = ""; + } + return this; + }, + locked: function() { + return !!locked; + }, + + // Call all callbacks with the given context and arguments + fireWith: function( context, args ) { + if ( !locked ) { + args = args || []; + args = [ context, args.slice ? args.slice() : args ]; + queue.push( args ); + if ( !firing ) { + fire(); + } + } + return this; + }, + + // Call all the callbacks with the given arguments + fire: function() { + self.fireWith( this, arguments ); + return this; + }, + + // To know if the callbacks have already been called at least once + fired: function() { + return !!fired; + } + }; + + return self; +}; + + +function Identity( v ) { + return v; +} +function Thrower( ex ) { + throw ex; +} + +function adoptValue( value, resolve, reject, noValue ) { + var method; + + try { + + // Check for promise aspect first to privilege synchronous behavior + if ( value && isFunction( ( method = value.promise ) ) ) { + method.call( value ).done( resolve ).fail( reject ); + + // Other thenables + } else if ( value && isFunction( ( method = value.then ) ) ) { + method.call( value, resolve, reject ); + + // Other non-thenables + } else { + + // Control `resolve` arguments by letting Array#slice cast boolean `noValue` to integer: + // * false: [ value ].slice( 0 ) => resolve( value ) + // * true: [ value ].slice( 1 ) => resolve() + resolve.apply( undefined, [ value ].slice( noValue ) ); + } + + // For Promises/A+, convert exceptions into rejections + // Since jQuery.when doesn't unwrap thenables, we can skip the extra checks appearing in + // Deferred#then to conditionally suppress rejection. + } catch ( value ) { + + // Support: Android 4.0 only + // Strict mode functions invoked without .call/.apply get global-object context + reject.apply( undefined, [ value ] ); + } +} + +jQuery.extend( { + + Deferred: function( func ) { + var tuples = [ + + // action, add listener, callbacks, + // ... .then handlers, argument index, [final state] + [ "notify", "progress", jQuery.Callbacks( "memory" ), + jQuery.Callbacks( "memory" ), 2 ], + [ "resolve", "done", jQuery.Callbacks( "once memory" ), + jQuery.Callbacks( "once memory" ), 0, "resolved" ], + [ "reject", "fail", jQuery.Callbacks( "once memory" ), + jQuery.Callbacks( "once memory" ), 1, "rejected" ] + ], + state = "pending", + promise = { + state: function() { + return state; + }, + always: function() { + deferred.done( arguments ).fail( arguments ); + return this; + }, + "catch": function( fn ) { + return promise.then( null, fn ); + }, + + // Keep pipe for back-compat + pipe: function( /* fnDone, fnFail, fnProgress */ ) { + var fns = arguments; + + return jQuery.Deferred( function( newDefer ) { + jQuery.each( tuples, function( _i, tuple ) { + + // Map tuples (progress, done, fail) to arguments (done, fail, progress) + var fn = isFunction( fns[ tuple[ 4 ] ] ) && fns[ tuple[ 4 ] ]; + + // deferred.progress(function() { bind to newDefer or newDefer.notify }) + // deferred.done(function() { bind to newDefer or newDefer.resolve }) + // deferred.fail(function() { bind to newDefer or newDefer.reject }) + deferred[ tuple[ 1 ] ]( function() { + var returned = fn && fn.apply( this, arguments ); + if ( returned && isFunction( returned.promise ) ) { + returned.promise() + .progress( newDefer.notify ) + .done( newDefer.resolve ) + .fail( newDefer.reject ); + } else { + newDefer[ tuple[ 0 ] + "With" ]( + this, + fn ? [ returned ] : arguments + ); + } + } ); + } ); + fns = null; + } ).promise(); + }, + then: function( onFulfilled, onRejected, onProgress ) { + var maxDepth = 0; + function resolve( depth, deferred, handler, special ) { + return function() { + var that = this, + args = arguments, + mightThrow = function() { + var returned, then; + + // Support: Promises/A+ section 2.3.3.3.3 + // https://promisesaplus.com/#point-59 + // Ignore double-resolution attempts + if ( depth < maxDepth ) { + return; + } + + returned = handler.apply( that, args ); + + // Support: Promises/A+ section 2.3.1 + // https://promisesaplus.com/#point-48 + if ( returned === deferred.promise() ) { + throw new TypeError( "Thenable self-resolution" ); + } + + // Support: Promises/A+ sections 2.3.3.1, 3.5 + // https://promisesaplus.com/#point-54 + // https://promisesaplus.com/#point-75 + // Retrieve `then` only once + then = returned && + + // Support: Promises/A+ section 2.3.4 + // https://promisesaplus.com/#point-64 + // Only check objects and functions for thenability + ( typeof returned === "object" || + typeof returned === "function" ) && + returned.then; + + // Handle a returned thenable + if ( isFunction( then ) ) { + + // Special processors (notify) just wait for resolution + if ( special ) { + then.call( + returned, + resolve( maxDepth, deferred, Identity, special ), + resolve( maxDepth, deferred, Thrower, special ) + ); + + // Normal processors (resolve) also hook into progress + } else { + + // ...and disregard older resolution values + maxDepth++; + + then.call( + returned, + resolve( maxDepth, deferred, Identity, special ), + resolve( maxDepth, deferred, Thrower, special ), + resolve( maxDepth, deferred, Identity, + deferred.notifyWith ) + ); + } + + // Handle all other returned values + } else { + + // Only substitute handlers pass on context + // and multiple values (non-spec behavior) + if ( handler !== Identity ) { + that = undefined; + args = [ returned ]; + } + + // Process the value(s) + // Default process is resolve + ( special || deferred.resolveWith )( that, args ); + } + }, + + // Only normal processors (resolve) catch and reject exceptions + process = special ? + mightThrow : + function() { + try { + mightThrow(); + } catch ( e ) { + + if ( jQuery.Deferred.exceptionHook ) { + jQuery.Deferred.exceptionHook( e, + process.stackTrace ); + } + + // Support: Promises/A+ section 2.3.3.3.4.1 + // https://promisesaplus.com/#point-61 + // Ignore post-resolution exceptions + if ( depth + 1 >= maxDepth ) { + + // Only substitute handlers pass on context + // and multiple values (non-spec behavior) + if ( handler !== Thrower ) { + that = undefined; + args = [ e ]; + } + + deferred.rejectWith( that, args ); + } + } + }; + + // Support: Promises/A+ section 2.3.3.3.1 + // https://promisesaplus.com/#point-57 + // Re-resolve promises immediately to dodge false rejection from + // subsequent errors + if ( depth ) { + process(); + } else { + + // Call an optional hook to record the stack, in case of exception + // since it's otherwise lost when execution goes async + if ( jQuery.Deferred.getStackHook ) { + process.stackTrace = jQuery.Deferred.getStackHook(); + } + window.setTimeout( process ); + } + }; + } + + return jQuery.Deferred( function( newDefer ) { + + // progress_handlers.add( ... ) + tuples[ 0 ][ 3 ].add( + resolve( + 0, + newDefer, + isFunction( onProgress ) ? + onProgress : + Identity, + newDefer.notifyWith + ) + ); + + // fulfilled_handlers.add( ... ) + tuples[ 1 ][ 3 ].add( + resolve( + 0, + newDefer, + isFunction( onFulfilled ) ? + onFulfilled : + Identity + ) + ); + + // rejected_handlers.add( ... ) + tuples[ 2 ][ 3 ].add( + resolve( + 0, + newDefer, + isFunction( onRejected ) ? + onRejected : + Thrower + ) + ); + } ).promise(); + }, + + // Get a promise for this deferred + // If obj is provided, the promise aspect is added to the object + promise: function( obj ) { + return obj != null ? jQuery.extend( obj, promise ) : promise; + } + }, + deferred = {}; + + // Add list-specific methods + jQuery.each( tuples, function( i, tuple ) { + var list = tuple[ 2 ], + stateString = tuple[ 5 ]; + + // promise.progress = list.add + // promise.done = list.add + // promise.fail = list.add + promise[ tuple[ 1 ] ] = list.add; + + // Handle state + if ( stateString ) { + list.add( + function() { + + // state = "resolved" (i.e., fulfilled) + // state = "rejected" + state = stateString; + }, + + // rejected_callbacks.disable + // fulfilled_callbacks.disable + tuples[ 3 - i ][ 2 ].disable, + + // rejected_handlers.disable + // fulfilled_handlers.disable + tuples[ 3 - i ][ 3 ].disable, + + // progress_callbacks.lock + tuples[ 0 ][ 2 ].lock, + + // progress_handlers.lock + tuples[ 0 ][ 3 ].lock + ); + } + + // progress_handlers.fire + // fulfilled_handlers.fire + // rejected_handlers.fire + list.add( tuple[ 3 ].fire ); + + // deferred.notify = function() { deferred.notifyWith(...) } + // deferred.resolve = function() { deferred.resolveWith(...) } + // deferred.reject = function() { deferred.rejectWith(...) } + deferred[ tuple[ 0 ] ] = function() { + deferred[ tuple[ 0 ] + "With" ]( this === deferred ? undefined : this, arguments ); + return this; + }; + + // deferred.notifyWith = list.fireWith + // deferred.resolveWith = list.fireWith + // deferred.rejectWith = list.fireWith + deferred[ tuple[ 0 ] + "With" ] = list.fireWith; + } ); + + // Make the deferred a promise + promise.promise( deferred ); + + // Call given func if any + if ( func ) { + func.call( deferred, deferred ); + } + + // All done! + return deferred; + }, + + // Deferred helper + when: function( singleValue ) { + var + + // count of uncompleted subordinates + remaining = arguments.length, + + // count of unprocessed arguments + i = remaining, + + // subordinate fulfillment data + resolveContexts = Array( i ), + resolveValues = slice.call( arguments ), + + // the primary Deferred + primary = jQuery.Deferred(), + + // subordinate callback factory + updateFunc = function( i ) { + return function( value ) { + resolveContexts[ i ] = this; + resolveValues[ i ] = arguments.length > 1 ? slice.call( arguments ) : value; + if ( !( --remaining ) ) { + primary.resolveWith( resolveContexts, resolveValues ); + } + }; + }; + + // Single- and empty arguments are adopted like Promise.resolve + if ( remaining <= 1 ) { + adoptValue( singleValue, primary.done( updateFunc( i ) ).resolve, primary.reject, + !remaining ); + + // Use .then() to unwrap secondary thenables (cf. gh-3000) + if ( primary.state() === "pending" || + isFunction( resolveValues[ i ] && resolveValues[ i ].then ) ) { + + return primary.then(); + } + } + + // Multiple arguments are aggregated like Promise.all array elements + while ( i-- ) { + adoptValue( resolveValues[ i ], updateFunc( i ), primary.reject ); + } + + return primary.promise(); + } +} ); + + +// These usually indicate a programmer mistake during development, +// warn about them ASAP rather than swallowing them by default. +var rerrorNames = /^(Eval|Internal|Range|Reference|Syntax|Type|URI)Error$/; + +jQuery.Deferred.exceptionHook = function( error, stack ) { + + // Support: IE 8 - 9 only + // Console exists when dev tools are open, which can happen at any time + if ( window.console && window.console.warn && error && rerrorNames.test( error.name ) ) { + window.console.warn( "jQuery.Deferred exception: " + error.message, error.stack, stack ); + } +}; + + + + +jQuery.readyException = function( error ) { + window.setTimeout( function() { + throw error; + } ); +}; + + + + +// The deferred used on DOM ready +var readyList = jQuery.Deferred(); + +jQuery.fn.ready = function( fn ) { + + readyList + .then( fn ) + + // Wrap jQuery.readyException in a function so that the lookup + // happens at the time of error handling instead of callback + // registration. + .catch( function( error ) { + jQuery.readyException( error ); + } ); + + return this; +}; + +jQuery.extend( { + + // Is the DOM ready to be used? Set to true once it occurs. + isReady: false, + + // A counter to track how many items to wait for before + // the ready event fires. See #6781 + readyWait: 1, + + // Handle when the DOM is ready + ready: function( wait ) { + + // Abort if there are pending holds or we're already ready + if ( wait === true ? --jQuery.readyWait : jQuery.isReady ) { + return; + } + + // Remember that the DOM is ready + jQuery.isReady = true; + + // If a normal DOM Ready event fired, decrement, and wait if need be + if ( wait !== true && --jQuery.readyWait > 0 ) { + return; + } + + // If there are functions bound, to execute + readyList.resolveWith( document, [ jQuery ] ); + } +} ); + +jQuery.ready.then = readyList.then; + +// The ready event handler and self cleanup method +function completed() { + document.removeEventListener( "DOMContentLoaded", completed ); + window.removeEventListener( "load", completed ); + jQuery.ready(); +} + +// Catch cases where $(document).ready() is called +// after the browser event has already occurred. +// Support: IE <=9 - 10 only +// Older IE sometimes signals "interactive" too soon +if ( document.readyState === "complete" || + ( document.readyState !== "loading" && !document.documentElement.doScroll ) ) { + + // Handle it asynchronously to allow scripts the opportunity to delay ready + window.setTimeout( jQuery.ready ); + +} else { + + // Use the handy event callback + document.addEventListener( "DOMContentLoaded", completed ); + + // A fallback to window.onload, that will always work + window.addEventListener( "load", completed ); +} + + + + +// Multifunctional method to get and set values of a collection +// The value/s can optionally be executed if it's a function +var access = function( elems, fn, key, value, chainable, emptyGet, raw ) { + var i = 0, + len = elems.length, + bulk = key == null; + + // Sets many values + if ( toType( key ) === "object" ) { + chainable = true; + for ( i in key ) { + access( elems, fn, i, key[ i ], true, emptyGet, raw ); + } + + // Sets one value + } else if ( value !== undefined ) { + chainable = true; + + if ( !isFunction( value ) ) { + raw = true; + } + + if ( bulk ) { + + // Bulk operations run against the entire set + if ( raw ) { + fn.call( elems, value ); + fn = null; + + // ...except when executing function values + } else { + bulk = fn; + fn = function( elem, _key, value ) { + return bulk.call( jQuery( elem ), value ); + }; + } + } + + if ( fn ) { + for ( ; i < len; i++ ) { + fn( + elems[ i ], key, raw ? + value : + value.call( elems[ i ], i, fn( elems[ i ], key ) ) + ); + } + } + } + + if ( chainable ) { + return elems; + } + + // Gets + if ( bulk ) { + return fn.call( elems ); + } + + return len ? fn( elems[ 0 ], key ) : emptyGet; +}; + + +// Matches dashed string for camelizing +var rmsPrefix = /^-ms-/, + rdashAlpha = /-([a-z])/g; + +// Used by camelCase as callback to replace() +function fcamelCase( _all, letter ) { + return letter.toUpperCase(); +} + +// Convert dashed to camelCase; used by the css and data modules +// Support: IE <=9 - 11, Edge 12 - 15 +// Microsoft forgot to hump their vendor prefix (#9572) +function camelCase( string ) { + return string.replace( rmsPrefix, "ms-" ).replace( rdashAlpha, fcamelCase ); +} +var acceptData = function( owner ) { + + // Accepts only: + // - Node + // - Node.ELEMENT_NODE + // - Node.DOCUMENT_NODE + // - Object + // - Any + return owner.nodeType === 1 || owner.nodeType === 9 || !( +owner.nodeType ); +}; + + + + +function Data() { + this.expando = jQuery.expando + Data.uid++; +} + +Data.uid = 1; + +Data.prototype = { + + cache: function( owner ) { + + // Check if the owner object already has a cache + var value = owner[ this.expando ]; + + // If not, create one + if ( !value ) { + value = {}; + + // We can accept data for non-element nodes in modern browsers, + // but we should not, see #8335. + // Always return an empty object. + if ( acceptData( owner ) ) { + + // If it is a node unlikely to be stringify-ed or looped over + // use plain assignment + if ( owner.nodeType ) { + owner[ this.expando ] = value; + + // Otherwise secure it in a non-enumerable property + // configurable must be true to allow the property to be + // deleted when data is removed + } else { + Object.defineProperty( owner, this.expando, { + value: value, + configurable: true + } ); + } + } + } + + return value; + }, + set: function( owner, data, value ) { + var prop, + cache = this.cache( owner ); + + // Handle: [ owner, key, value ] args + // Always use camelCase key (gh-2257) + if ( typeof data === "string" ) { + cache[ camelCase( data ) ] = value; + + // Handle: [ owner, { properties } ] args + } else { + + // Copy the properties one-by-one to the cache object + for ( prop in data ) { + cache[ camelCase( prop ) ] = data[ prop ]; + } + } + return cache; + }, + get: function( owner, key ) { + return key === undefined ? + this.cache( owner ) : + + // Always use camelCase key (gh-2257) + owner[ this.expando ] && owner[ this.expando ][ camelCase( key ) ]; + }, + access: function( owner, key, value ) { + + // In cases where either: + // + // 1. No key was specified + // 2. A string key was specified, but no value provided + // + // Take the "read" path and allow the get method to determine + // which value to return, respectively either: + // + // 1. The entire cache object + // 2. The data stored at the key + // + if ( key === undefined || + ( ( key && typeof key === "string" ) && value === undefined ) ) { + + return this.get( owner, key ); + } + + // When the key is not a string, or both a key and value + // are specified, set or extend (existing objects) with either: + // + // 1. An object of properties + // 2. A key and value + // + this.set( owner, key, value ); + + // Since the "set" path can have two possible entry points + // return the expected data based on which path was taken[*] + return value !== undefined ? value : key; + }, + remove: function( owner, key ) { + var i, + cache = owner[ this.expando ]; + + if ( cache === undefined ) { + return; + } + + if ( key !== undefined ) { + + // Support array or space separated string of keys + if ( Array.isArray( key ) ) { + + // If key is an array of keys... + // We always set camelCase keys, so remove that. + key = key.map( camelCase ); + } else { + key = camelCase( key ); + + // If a key with the spaces exists, use it. + // Otherwise, create an array by matching non-whitespace + key = key in cache ? + [ key ] : + ( key.match( rnothtmlwhite ) || [] ); + } + + i = key.length; + + while ( i-- ) { + delete cache[ key[ i ] ]; + } + } + + // Remove the expando if there's no more data + if ( key === undefined || jQuery.isEmptyObject( cache ) ) { + + // Support: Chrome <=35 - 45 + // Webkit & Blink performance suffers when deleting properties + // from DOM nodes, so set to undefined instead + // https://bugs.chromium.org/p/chromium/issues/detail?id=378607 (bug restricted) + if ( owner.nodeType ) { + owner[ this.expando ] = undefined; + } else { + delete owner[ this.expando ]; + } + } + }, + hasData: function( owner ) { + var cache = owner[ this.expando ]; + return cache !== undefined && !jQuery.isEmptyObject( cache ); + } +}; +var dataPriv = new Data(); + +var dataUser = new Data(); + + + +// Implementation Summary +// +// 1. Enforce API surface and semantic compatibility with 1.9.x branch +// 2. Improve the module's maintainability by reducing the storage +// paths to a single mechanism. +// 3. Use the same single mechanism to support "private" and "user" data. +// 4. _Never_ expose "private" data to user code (TODO: Drop _data, _removeData) +// 5. Avoid exposing implementation details on user objects (eg. expando properties) +// 6. Provide a clear path for implementation upgrade to WeakMap in 2014 + +var rbrace = /^(?:\{[\w\W]*\}|\[[\w\W]*\])$/, + rmultiDash = /[A-Z]/g; + +function getData( data ) { + if ( data === "true" ) { + return true; + } + + if ( data === "false" ) { + return false; + } + + if ( data === "null" ) { + return null; + } + + // Only convert to a number if it doesn't change the string + if ( data === +data + "" ) { + return +data; + } + + if ( rbrace.test( data ) ) { + return JSON.parse( data ); + } + + return data; +} + +function dataAttr( elem, key, data ) { + var name; + + // If nothing was found internally, try to fetch any + // data from the HTML5 data-* attribute + if ( data === undefined && elem.nodeType === 1 ) { + name = "data-" + key.replace( rmultiDash, "-$&" ).toLowerCase(); + data = elem.getAttribute( name ); + + if ( typeof data === "string" ) { + try { + data = getData( data ); + } catch ( e ) {} + + // Make sure we set the data so it isn't changed later + dataUser.set( elem, key, data ); + } else { + data = undefined; + } + } + return data; +} + +jQuery.extend( { + hasData: function( elem ) { + return dataUser.hasData( elem ) || dataPriv.hasData( elem ); + }, + + data: function( elem, name, data ) { + return dataUser.access( elem, name, data ); + }, + + removeData: function( elem, name ) { + dataUser.remove( elem, name ); + }, + + // TODO: Now that all calls to _data and _removeData have been replaced + // with direct calls to dataPriv methods, these can be deprecated. + _data: function( elem, name, data ) { + return dataPriv.access( elem, name, data ); + }, + + _removeData: function( elem, name ) { + dataPriv.remove( elem, name ); + } +} ); + +jQuery.fn.extend( { + data: function( key, value ) { + var i, name, data, + elem = this[ 0 ], + attrs = elem && elem.attributes; + + // Gets all values + if ( key === undefined ) { + if ( this.length ) { + data = dataUser.get( elem ); + + if ( elem.nodeType === 1 && !dataPriv.get( elem, "hasDataAttrs" ) ) { + i = attrs.length; + while ( i-- ) { + + // Support: IE 11 only + // The attrs elements can be null (#14894) + if ( attrs[ i ] ) { + name = attrs[ i ].name; + if ( name.indexOf( "data-" ) === 0 ) { + name = camelCase( name.slice( 5 ) ); + dataAttr( elem, name, data[ name ] ); + } + } + } + dataPriv.set( elem, "hasDataAttrs", true ); + } + } + + return data; + } + + // Sets multiple values + if ( typeof key === "object" ) { + return this.each( function() { + dataUser.set( this, key ); + } ); + } + + return access( this, function( value ) { + var data; + + // The calling jQuery object (element matches) is not empty + // (and therefore has an element appears at this[ 0 ]) and the + // `value` parameter was not undefined. An empty jQuery object + // will result in `undefined` for elem = this[ 0 ] which will + // throw an exception if an attempt to read a data cache is made. + if ( elem && value === undefined ) { + + // Attempt to get data from the cache + // The key will always be camelCased in Data + data = dataUser.get( elem, key ); + if ( data !== undefined ) { + return data; + } + + // Attempt to "discover" the data in + // HTML5 custom data-* attrs + data = dataAttr( elem, key ); + if ( data !== undefined ) { + return data; + } + + // We tried really hard, but the data doesn't exist. + return; + } + + // Set the data... + this.each( function() { + + // We always store the camelCased key + dataUser.set( this, key, value ); + } ); + }, null, value, arguments.length > 1, null, true ); + }, + + removeData: function( key ) { + return this.each( function() { + dataUser.remove( this, key ); + } ); + } +} ); + + +jQuery.extend( { + queue: function( elem, type, data ) { + var queue; + + if ( elem ) { + type = ( type || "fx" ) + "queue"; + queue = dataPriv.get( elem, type ); + + // Speed up dequeue by getting out quickly if this is just a lookup + if ( data ) { + if ( !queue || Array.isArray( data ) ) { + queue = dataPriv.access( elem, type, jQuery.makeArray( data ) ); + } else { + queue.push( data ); + } + } + return queue || []; + } + }, + + dequeue: function( elem, type ) { + type = type || "fx"; + + var queue = jQuery.queue( elem, type ), + startLength = queue.length, + fn = queue.shift(), + hooks = jQuery._queueHooks( elem, type ), + next = function() { + jQuery.dequeue( elem, type ); + }; + + // If the fx queue is dequeued, always remove the progress sentinel + if ( fn === "inprogress" ) { + fn = queue.shift(); + startLength--; + } + + if ( fn ) { + + // Add a progress sentinel to prevent the fx queue from being + // automatically dequeued + if ( type === "fx" ) { + queue.unshift( "inprogress" ); + } + + // Clear up the last queue stop function + delete hooks.stop; + fn.call( elem, next, hooks ); + } + + if ( !startLength && hooks ) { + hooks.empty.fire(); + } + }, + + // Not public - generate a queueHooks object, or return the current one + _queueHooks: function( elem, type ) { + var key = type + "queueHooks"; + return dataPriv.get( elem, key ) || dataPriv.access( elem, key, { + empty: jQuery.Callbacks( "once memory" ).add( function() { + dataPriv.remove( elem, [ type + "queue", key ] ); + } ) + } ); + } +} ); + +jQuery.fn.extend( { + queue: function( type, data ) { + var setter = 2; + + if ( typeof type !== "string" ) { + data = type; + type = "fx"; + setter--; + } + + if ( arguments.length < setter ) { + return jQuery.queue( this[ 0 ], type ); + } + + return data === undefined ? + this : + this.each( function() { + var queue = jQuery.queue( this, type, data ); + + // Ensure a hooks for this queue + jQuery._queueHooks( this, type ); + + if ( type === "fx" && queue[ 0 ] !== "inprogress" ) { + jQuery.dequeue( this, type ); + } + } ); + }, + dequeue: function( type ) { + return this.each( function() { + jQuery.dequeue( this, type ); + } ); + }, + clearQueue: function( type ) { + return this.queue( type || "fx", [] ); + }, + + // Get a promise resolved when queues of a certain type + // are emptied (fx is the type by default) + promise: function( type, obj ) { + var tmp, + count = 1, + defer = jQuery.Deferred(), + elements = this, + i = this.length, + resolve = function() { + if ( !( --count ) ) { + defer.resolveWith( elements, [ elements ] ); + } + }; + + if ( typeof type !== "string" ) { + obj = type; + type = undefined; + } + type = type || "fx"; + + while ( i-- ) { + tmp = dataPriv.get( elements[ i ], type + "queueHooks" ); + if ( tmp && tmp.empty ) { + count++; + tmp.empty.add( resolve ); + } + } + resolve(); + return defer.promise( obj ); + } +} ); +var pnum = ( /[+-]?(?:\d*\.|)\d+(?:[eE][+-]?\d+|)/ ).source; + +var rcssNum = new RegExp( "^(?:([+-])=|)(" + pnum + ")([a-z%]*)$", "i" ); + + +var cssExpand = [ "Top", "Right", "Bottom", "Left" ]; + +var documentElement = document.documentElement; + + + + var isAttached = function( elem ) { + return jQuery.contains( elem.ownerDocument, elem ); + }, + composed = { composed: true }; + + // Support: IE 9 - 11+, Edge 12 - 18+, iOS 10.0 - 10.2 only + // Check attachment across shadow DOM boundaries when possible (gh-3504) + // Support: iOS 10.0-10.2 only + // Early iOS 10 versions support `attachShadow` but not `getRootNode`, + // leading to errors. We need to check for `getRootNode`. + if ( documentElement.getRootNode ) { + isAttached = function( elem ) { + return jQuery.contains( elem.ownerDocument, elem ) || + elem.getRootNode( composed ) === elem.ownerDocument; + }; + } +var isHiddenWithinTree = function( elem, el ) { + + // isHiddenWithinTree might be called from jQuery#filter function; + // in that case, element will be second argument + elem = el || elem; + + // Inline style trumps all + return elem.style.display === "none" || + elem.style.display === "" && + + // Otherwise, check computed style + // Support: Firefox <=43 - 45 + // Disconnected elements can have computed display: none, so first confirm that elem is + // in the document. + isAttached( elem ) && + + jQuery.css( elem, "display" ) === "none"; + }; + + + +function adjustCSS( elem, prop, valueParts, tween ) { + var adjusted, scale, + maxIterations = 20, + currentValue = tween ? + function() { + return tween.cur(); + } : + function() { + return jQuery.css( elem, prop, "" ); + }, + initial = currentValue(), + unit = valueParts && valueParts[ 3 ] || ( jQuery.cssNumber[ prop ] ? "" : "px" ), + + // Starting value computation is required for potential unit mismatches + initialInUnit = elem.nodeType && + ( jQuery.cssNumber[ prop ] || unit !== "px" && +initial ) && + rcssNum.exec( jQuery.css( elem, prop ) ); + + if ( initialInUnit && initialInUnit[ 3 ] !== unit ) { + + // Support: Firefox <=54 + // Halve the iteration target value to prevent interference from CSS upper bounds (gh-2144) + initial = initial / 2; + + // Trust units reported by jQuery.css + unit = unit || initialInUnit[ 3 ]; + + // Iteratively approximate from a nonzero starting point + initialInUnit = +initial || 1; + + while ( maxIterations-- ) { + + // Evaluate and update our best guess (doubling guesses that zero out). + // Finish if the scale equals or crosses 1 (making the old*new product non-positive). + jQuery.style( elem, prop, initialInUnit + unit ); + if ( ( 1 - scale ) * ( 1 - ( scale = currentValue() / initial || 0.5 ) ) <= 0 ) { + maxIterations = 0; + } + initialInUnit = initialInUnit / scale; + + } + + initialInUnit = initialInUnit * 2; + jQuery.style( elem, prop, initialInUnit + unit ); + + // Make sure we update the tween properties later on + valueParts = valueParts || []; + } + + if ( valueParts ) { + initialInUnit = +initialInUnit || +initial || 0; + + // Apply relative offset (+=/-=) if specified + adjusted = valueParts[ 1 ] ? + initialInUnit + ( valueParts[ 1 ] + 1 ) * valueParts[ 2 ] : + +valueParts[ 2 ]; + if ( tween ) { + tween.unit = unit; + tween.start = initialInUnit; + tween.end = adjusted; + } + } + return adjusted; +} + + +var defaultDisplayMap = {}; + +function getDefaultDisplay( elem ) { + var temp, + doc = elem.ownerDocument, + nodeName = elem.nodeName, + display = defaultDisplayMap[ nodeName ]; + + if ( display ) { + return display; + } + + temp = doc.body.appendChild( doc.createElement( nodeName ) ); + display = jQuery.css( temp, "display" ); + + temp.parentNode.removeChild( temp ); + + if ( display === "none" ) { + display = "block"; + } + defaultDisplayMap[ nodeName ] = display; + + return display; +} + +function showHide( elements, show ) { + var display, elem, + values = [], + index = 0, + length = elements.length; + + // Determine new display value for elements that need to change + for ( ; index < length; index++ ) { + elem = elements[ index ]; + if ( !elem.style ) { + continue; + } + + display = elem.style.display; + if ( show ) { + + // Since we force visibility upon cascade-hidden elements, an immediate (and slow) + // check is required in this first loop unless we have a nonempty display value (either + // inline or about-to-be-restored) + if ( display === "none" ) { + values[ index ] = dataPriv.get( elem, "display" ) || null; + if ( !values[ index ] ) { + elem.style.display = ""; + } + } + if ( elem.style.display === "" && isHiddenWithinTree( elem ) ) { + values[ index ] = getDefaultDisplay( elem ); + } + } else { + if ( display !== "none" ) { + values[ index ] = "none"; + + // Remember what we're overwriting + dataPriv.set( elem, "display", display ); + } + } + } + + // Set the display of the elements in a second loop to avoid constant reflow + for ( index = 0; index < length; index++ ) { + if ( values[ index ] != null ) { + elements[ index ].style.display = values[ index ]; + } + } + + return elements; +} + +jQuery.fn.extend( { + show: function() { + return showHide( this, true ); + }, + hide: function() { + return showHide( this ); + }, + toggle: function( state ) { + if ( typeof state === "boolean" ) { + return state ? this.show() : this.hide(); + } + + return this.each( function() { + if ( isHiddenWithinTree( this ) ) { + jQuery( this ).show(); + } else { + jQuery( this ).hide(); + } + } ); + } +} ); +var rcheckableType = ( /^(?:checkbox|radio)$/i ); + +var rtagName = ( /<([a-z][^\/\0>\x20\t\r\n\f]*)/i ); + +var rscriptType = ( /^$|^module$|\/(?:java|ecma)script/i ); + + + +( function() { + var fragment = document.createDocumentFragment(), + div = fragment.appendChild( document.createElement( "div" ) ), + input = document.createElement( "input" ); + + // Support: Android 4.0 - 4.3 only + // Check state lost if the name is set (#11217) + // Support: Windows Web Apps (WWA) + // `name` and `type` must use .setAttribute for WWA (#14901) + input.setAttribute( "type", "radio" ); + input.setAttribute( "checked", "checked" ); + input.setAttribute( "name", "t" ); + + div.appendChild( input ); + + // Support: Android <=4.1 only + // Older WebKit doesn't clone checked state correctly in fragments + support.checkClone = div.cloneNode( true ).cloneNode( true ).lastChild.checked; + + // Support: IE <=11 only + // Make sure textarea (and checkbox) defaultValue is properly cloned + div.innerHTML = ""; + support.noCloneChecked = !!div.cloneNode( true ).lastChild.defaultValue; + + // Support: IE <=9 only + // IE <=9 replaces "; + support.option = !!div.lastChild; +} )(); + + +// We have to close these tags to support XHTML (#13200) +var wrapMap = { + + // XHTML parsers do not magically insert elements in the + // same way that tag soup parsers do. So we cannot shorten + // this by omitting or other required elements. + thead: [ 1, "", "
" ], + col: [ 2, "", "
" ], + tr: [ 2, "", "
" ], + td: [ 3, "", "
" ], + + _default: [ 0, "", "" ] +}; + +wrapMap.tbody = wrapMap.tfoot = wrapMap.colgroup = wrapMap.caption = wrapMap.thead; +wrapMap.th = wrapMap.td; + +// Support: IE <=9 only +if ( !support.option ) { + wrapMap.optgroup = wrapMap.option = [ 1, "" ]; +} + + +function getAll( context, tag ) { + + // Support: IE <=9 - 11 only + // Use typeof to avoid zero-argument method invocation on host objects (#15151) + var ret; + + if ( typeof context.getElementsByTagName !== "undefined" ) { + ret = context.getElementsByTagName( tag || "*" ); + + } else if ( typeof context.querySelectorAll !== "undefined" ) { + ret = context.querySelectorAll( tag || "*" ); + + } else { + ret = []; + } + + if ( tag === undefined || tag && nodeName( context, tag ) ) { + return jQuery.merge( [ context ], ret ); + } + + return ret; +} + + +// Mark scripts as having already been evaluated +function setGlobalEval( elems, refElements ) { + var i = 0, + l = elems.length; + + for ( ; i < l; i++ ) { + dataPriv.set( + elems[ i ], + "globalEval", + !refElements || dataPriv.get( refElements[ i ], "globalEval" ) + ); + } +} + + +var rhtml = /<|&#?\w+;/; + +function buildFragment( elems, context, scripts, selection, ignored ) { + var elem, tmp, tag, wrap, attached, j, + fragment = context.createDocumentFragment(), + nodes = [], + i = 0, + l = elems.length; + + for ( ; i < l; i++ ) { + elem = elems[ i ]; + + if ( elem || elem === 0 ) { + + // Add nodes directly + if ( toType( elem ) === "object" ) { + + // Support: Android <=4.0 only, PhantomJS 1 only + // push.apply(_, arraylike) throws on ancient WebKit + jQuery.merge( nodes, elem.nodeType ? [ elem ] : elem ); + + // Convert non-html into a text node + } else if ( !rhtml.test( elem ) ) { + nodes.push( context.createTextNode( elem ) ); + + // Convert html into DOM nodes + } else { + tmp = tmp || fragment.appendChild( context.createElement( "div" ) ); + + // Deserialize a standard representation + tag = ( rtagName.exec( elem ) || [ "", "" ] )[ 1 ].toLowerCase(); + wrap = wrapMap[ tag ] || wrapMap._default; + tmp.innerHTML = wrap[ 1 ] + jQuery.htmlPrefilter( elem ) + wrap[ 2 ]; + + // Descend through wrappers to the right content + j = wrap[ 0 ]; + while ( j-- ) { + tmp = tmp.lastChild; + } + + // Support: Android <=4.0 only, PhantomJS 1 only + // push.apply(_, arraylike) throws on ancient WebKit + jQuery.merge( nodes, tmp.childNodes ); + + // Remember the top-level container + tmp = fragment.firstChild; + + // Ensure the created nodes are orphaned (#12392) + tmp.textContent = ""; + } + } + } + + // Remove wrapper from fragment + fragment.textContent = ""; + + i = 0; + while ( ( elem = nodes[ i++ ] ) ) { + + // Skip elements already in the context collection (trac-4087) + if ( selection && jQuery.inArray( elem, selection ) > -1 ) { + if ( ignored ) { + ignored.push( elem ); + } + continue; + } + + attached = isAttached( elem ); + + // Append to fragment + tmp = getAll( fragment.appendChild( elem ), "script" ); + + // Preserve script evaluation history + if ( attached ) { + setGlobalEval( tmp ); + } + + // Capture executables + if ( scripts ) { + j = 0; + while ( ( elem = tmp[ j++ ] ) ) { + if ( rscriptType.test( elem.type || "" ) ) { + scripts.push( elem ); + } + } + } + } + + return fragment; +} + + +var rtypenamespace = /^([^.]*)(?:\.(.+)|)/; + +function returnTrue() { + return true; +} + +function returnFalse() { + return false; +} + +// Support: IE <=9 - 11+ +// focus() and blur() are asynchronous, except when they are no-op. +// So expect focus to be synchronous when the element is already active, +// and blur to be synchronous when the element is not already active. +// (focus and blur are always synchronous in other supported browsers, +// this just defines when we can count on it). +function expectSync( elem, type ) { + return ( elem === safeActiveElement() ) === ( type === "focus" ); +} + +// Support: IE <=9 only +// Accessing document.activeElement can throw unexpectedly +// https://bugs.jquery.com/ticket/13393 +function safeActiveElement() { + try { + return document.activeElement; + } catch ( err ) { } +} + +function on( elem, types, selector, data, fn, one ) { + var origFn, type; + + // Types can be a map of types/handlers + if ( typeof types === "object" ) { + + // ( types-Object, selector, data ) + if ( typeof selector !== "string" ) { + + // ( types-Object, data ) + data = data || selector; + selector = undefined; + } + for ( type in types ) { + on( elem, type, selector, data, types[ type ], one ); + } + return elem; + } + + if ( data == null && fn == null ) { + + // ( types, fn ) + fn = selector; + data = selector = undefined; + } else if ( fn == null ) { + if ( typeof selector === "string" ) { + + // ( types, selector, fn ) + fn = data; + data = undefined; + } else { + + // ( types, data, fn ) + fn = data; + data = selector; + selector = undefined; + } + } + if ( fn === false ) { + fn = returnFalse; + } else if ( !fn ) { + return elem; + } + + if ( one === 1 ) { + origFn = fn; + fn = function( event ) { + + // Can use an empty set, since event contains the info + jQuery().off( event ); + return origFn.apply( this, arguments ); + }; + + // Use same guid so caller can remove using origFn + fn.guid = origFn.guid || ( origFn.guid = jQuery.guid++ ); + } + return elem.each( function() { + jQuery.event.add( this, types, fn, data, selector ); + } ); +} + +/* + * Helper functions for managing events -- not part of the public interface. + * Props to Dean Edwards' addEvent library for many of the ideas. + */ +jQuery.event = { + + global: {}, + + add: function( elem, types, handler, data, selector ) { + + var handleObjIn, eventHandle, tmp, + events, t, handleObj, + special, handlers, type, namespaces, origType, + elemData = dataPriv.get( elem ); + + // Only attach events to objects that accept data + if ( !acceptData( elem ) ) { + return; + } + + // Caller can pass in an object of custom data in lieu of the handler + if ( handler.handler ) { + handleObjIn = handler; + handler = handleObjIn.handler; + selector = handleObjIn.selector; + } + + // Ensure that invalid selectors throw exceptions at attach time + // Evaluate against documentElement in case elem is a non-element node (e.g., document) + if ( selector ) { + jQuery.find.matchesSelector( documentElement, selector ); + } + + // Make sure that the handler has a unique ID, used to find/remove it later + if ( !handler.guid ) { + handler.guid = jQuery.guid++; + } + + // Init the element's event structure and main handler, if this is the first + if ( !( events = elemData.events ) ) { + events = elemData.events = Object.create( null ); + } + if ( !( eventHandle = elemData.handle ) ) { + eventHandle = elemData.handle = function( e ) { + + // Discard the second event of a jQuery.event.trigger() and + // when an event is called after a page has unloaded + return typeof jQuery !== "undefined" && jQuery.event.triggered !== e.type ? + jQuery.event.dispatch.apply( elem, arguments ) : undefined; + }; + } + + // Handle multiple events separated by a space + types = ( types || "" ).match( rnothtmlwhite ) || [ "" ]; + t = types.length; + while ( t-- ) { + tmp = rtypenamespace.exec( types[ t ] ) || []; + type = origType = tmp[ 1 ]; + namespaces = ( tmp[ 2 ] || "" ).split( "." ).sort(); + + // There *must* be a type, no attaching namespace-only handlers + if ( !type ) { + continue; + } + + // If event changes its type, use the special event handlers for the changed type + special = jQuery.event.special[ type ] || {}; + + // If selector defined, determine special event api type, otherwise given type + type = ( selector ? special.delegateType : special.bindType ) || type; + + // Update special based on newly reset type + special = jQuery.event.special[ type ] || {}; + + // handleObj is passed to all event handlers + handleObj = jQuery.extend( { + type: type, + origType: origType, + data: data, + handler: handler, + guid: handler.guid, + selector: selector, + needsContext: selector && jQuery.expr.match.needsContext.test( selector ), + namespace: namespaces.join( "." ) + }, handleObjIn ); + + // Init the event handler queue if we're the first + if ( !( handlers = events[ type ] ) ) { + handlers = events[ type ] = []; + handlers.delegateCount = 0; + + // Only use addEventListener if the special events handler returns false + if ( !special.setup || + special.setup.call( elem, data, namespaces, eventHandle ) === false ) { + + if ( elem.addEventListener ) { + elem.addEventListener( type, eventHandle ); + } + } + } + + if ( special.add ) { + special.add.call( elem, handleObj ); + + if ( !handleObj.handler.guid ) { + handleObj.handler.guid = handler.guid; + } + } + + // Add to the element's handler list, delegates in front + if ( selector ) { + handlers.splice( handlers.delegateCount++, 0, handleObj ); + } else { + handlers.push( handleObj ); + } + + // Keep track of which events have ever been used, for event optimization + jQuery.event.global[ type ] = true; + } + + }, + + // Detach an event or set of events from an element + remove: function( elem, types, handler, selector, mappedTypes ) { + + var j, origCount, tmp, + events, t, handleObj, + special, handlers, type, namespaces, origType, + elemData = dataPriv.hasData( elem ) && dataPriv.get( elem ); + + if ( !elemData || !( events = elemData.events ) ) { + return; + } + + // Once for each type.namespace in types; type may be omitted + types = ( types || "" ).match( rnothtmlwhite ) || [ "" ]; + t = types.length; + while ( t-- ) { + tmp = rtypenamespace.exec( types[ t ] ) || []; + type = origType = tmp[ 1 ]; + namespaces = ( tmp[ 2 ] || "" ).split( "." ).sort(); + + // Unbind all events (on this namespace, if provided) for the element + if ( !type ) { + for ( type in events ) { + jQuery.event.remove( elem, type + types[ t ], handler, selector, true ); + } + continue; + } + + special = jQuery.event.special[ type ] || {}; + type = ( selector ? special.delegateType : special.bindType ) || type; + handlers = events[ type ] || []; + tmp = tmp[ 2 ] && + new RegExp( "(^|\\.)" + namespaces.join( "\\.(?:.*\\.|)" ) + "(\\.|$)" ); + + // Remove matching events + origCount = j = handlers.length; + while ( j-- ) { + handleObj = handlers[ j ]; + + if ( ( mappedTypes || origType === handleObj.origType ) && + ( !handler || handler.guid === handleObj.guid ) && + ( !tmp || tmp.test( handleObj.namespace ) ) && + ( !selector || selector === handleObj.selector || + selector === "**" && handleObj.selector ) ) { + handlers.splice( j, 1 ); + + if ( handleObj.selector ) { + handlers.delegateCount--; + } + if ( special.remove ) { + special.remove.call( elem, handleObj ); + } + } + } + + // Remove generic event handler if we removed something and no more handlers exist + // (avoids potential for endless recursion during removal of special event handlers) + if ( origCount && !handlers.length ) { + if ( !special.teardown || + special.teardown.call( elem, namespaces, elemData.handle ) === false ) { + + jQuery.removeEvent( elem, type, elemData.handle ); + } + + delete events[ type ]; + } + } + + // Remove data and the expando if it's no longer used + if ( jQuery.isEmptyObject( events ) ) { + dataPriv.remove( elem, "handle events" ); + } + }, + + dispatch: function( nativeEvent ) { + + var i, j, ret, matched, handleObj, handlerQueue, + args = new Array( arguments.length ), + + // Make a writable jQuery.Event from the native event object + event = jQuery.event.fix( nativeEvent ), + + handlers = ( + dataPriv.get( this, "events" ) || Object.create( null ) + )[ event.type ] || [], + special = jQuery.event.special[ event.type ] || {}; + + // Use the fix-ed jQuery.Event rather than the (read-only) native event + args[ 0 ] = event; + + for ( i = 1; i < arguments.length; i++ ) { + args[ i ] = arguments[ i ]; + } + + event.delegateTarget = this; + + // Call the preDispatch hook for the mapped type, and let it bail if desired + if ( special.preDispatch && special.preDispatch.call( this, event ) === false ) { + return; + } + + // Determine handlers + handlerQueue = jQuery.event.handlers.call( this, event, handlers ); + + // Run delegates first; they may want to stop propagation beneath us + i = 0; + while ( ( matched = handlerQueue[ i++ ] ) && !event.isPropagationStopped() ) { + event.currentTarget = matched.elem; + + j = 0; + while ( ( handleObj = matched.handlers[ j++ ] ) && + !event.isImmediatePropagationStopped() ) { + + // If the event is namespaced, then each handler is only invoked if it is + // specially universal or its namespaces are a superset of the event's. + if ( !event.rnamespace || handleObj.namespace === false || + event.rnamespace.test( handleObj.namespace ) ) { + + event.handleObj = handleObj; + event.data = handleObj.data; + + ret = ( ( jQuery.event.special[ handleObj.origType ] || {} ).handle || + handleObj.handler ).apply( matched.elem, args ); + + if ( ret !== undefined ) { + if ( ( event.result = ret ) === false ) { + event.preventDefault(); + event.stopPropagation(); + } + } + } + } + } + + // Call the postDispatch hook for the mapped type + if ( special.postDispatch ) { + special.postDispatch.call( this, event ); + } + + return event.result; + }, + + handlers: function( event, handlers ) { + var i, handleObj, sel, matchedHandlers, matchedSelectors, + handlerQueue = [], + delegateCount = handlers.delegateCount, + cur = event.target; + + // Find delegate handlers + if ( delegateCount && + + // Support: IE <=9 + // Black-hole SVG instance trees (trac-13180) + cur.nodeType && + + // Support: Firefox <=42 + // Suppress spec-violating clicks indicating a non-primary pointer button (trac-3861) + // https://www.w3.org/TR/DOM-Level-3-Events/#event-type-click + // Support: IE 11 only + // ...but not arrow key "clicks" of radio inputs, which can have `button` -1 (gh-2343) + !( event.type === "click" && event.button >= 1 ) ) { + + for ( ; cur !== this; cur = cur.parentNode || this ) { + + // Don't check non-elements (#13208) + // Don't process clicks on disabled elements (#6911, #8165, #11382, #11764) + if ( cur.nodeType === 1 && !( event.type === "click" && cur.disabled === true ) ) { + matchedHandlers = []; + matchedSelectors = {}; + for ( i = 0; i < delegateCount; i++ ) { + handleObj = handlers[ i ]; + + // Don't conflict with Object.prototype properties (#13203) + sel = handleObj.selector + " "; + + if ( matchedSelectors[ sel ] === undefined ) { + matchedSelectors[ sel ] = handleObj.needsContext ? + jQuery( sel, this ).index( cur ) > -1 : + jQuery.find( sel, this, null, [ cur ] ).length; + } + if ( matchedSelectors[ sel ] ) { + matchedHandlers.push( handleObj ); + } + } + if ( matchedHandlers.length ) { + handlerQueue.push( { elem: cur, handlers: matchedHandlers } ); + } + } + } + } + + // Add the remaining (directly-bound) handlers + cur = this; + if ( delegateCount < handlers.length ) { + handlerQueue.push( { elem: cur, handlers: handlers.slice( delegateCount ) } ); + } + + return handlerQueue; + }, + + addProp: function( name, hook ) { + Object.defineProperty( jQuery.Event.prototype, name, { + enumerable: true, + configurable: true, + + get: isFunction( hook ) ? + function() { + if ( this.originalEvent ) { + return hook( this.originalEvent ); + } + } : + function() { + if ( this.originalEvent ) { + return this.originalEvent[ name ]; + } + }, + + set: function( value ) { + Object.defineProperty( this, name, { + enumerable: true, + configurable: true, + writable: true, + value: value + } ); + } + } ); + }, + + fix: function( originalEvent ) { + return originalEvent[ jQuery.expando ] ? + originalEvent : + new jQuery.Event( originalEvent ); + }, + + special: { + load: { + + // Prevent triggered image.load events from bubbling to window.load + noBubble: true + }, + click: { + + // Utilize native event to ensure correct state for checkable inputs + setup: function( data ) { + + // For mutual compressibility with _default, replace `this` access with a local var. + // `|| data` is dead code meant only to preserve the variable through minification. + var el = this || data; + + // Claim the first handler + if ( rcheckableType.test( el.type ) && + el.click && nodeName( el, "input" ) ) { + + // dataPriv.set( el, "click", ... ) + leverageNative( el, "click", returnTrue ); + } + + // Return false to allow normal processing in the caller + return false; + }, + trigger: function( data ) { + + // For mutual compressibility with _default, replace `this` access with a local var. + // `|| data` is dead code meant only to preserve the variable through minification. + var el = this || data; + + // Force setup before triggering a click + if ( rcheckableType.test( el.type ) && + el.click && nodeName( el, "input" ) ) { + + leverageNative( el, "click" ); + } + + // Return non-false to allow normal event-path propagation + return true; + }, + + // For cross-browser consistency, suppress native .click() on links + // Also prevent it if we're currently inside a leveraged native-event stack + _default: function( event ) { + var target = event.target; + return rcheckableType.test( target.type ) && + target.click && nodeName( target, "input" ) && + dataPriv.get( target, "click" ) || + nodeName( target, "a" ); + } + }, + + beforeunload: { + postDispatch: function( event ) { + + // Support: Firefox 20+ + // Firefox doesn't alert if the returnValue field is not set. + if ( event.result !== undefined && event.originalEvent ) { + event.originalEvent.returnValue = event.result; + } + } + } + } +}; + +// Ensure the presence of an event listener that handles manually-triggered +// synthetic events by interrupting progress until reinvoked in response to +// *native* events that it fires directly, ensuring that state changes have +// already occurred before other listeners are invoked. +function leverageNative( el, type, expectSync ) { + + // Missing expectSync indicates a trigger call, which must force setup through jQuery.event.add + if ( !expectSync ) { + if ( dataPriv.get( el, type ) === undefined ) { + jQuery.event.add( el, type, returnTrue ); + } + return; + } + + // Register the controller as a special universal handler for all event namespaces + dataPriv.set( el, type, false ); + jQuery.event.add( el, type, { + namespace: false, + handler: function( event ) { + var notAsync, result, + saved = dataPriv.get( this, type ); + + if ( ( event.isTrigger & 1 ) && this[ type ] ) { + + // Interrupt processing of the outer synthetic .trigger()ed event + // Saved data should be false in such cases, but might be a leftover capture object + // from an async native handler (gh-4350) + if ( !saved.length ) { + + // Store arguments for use when handling the inner native event + // There will always be at least one argument (an event object), so this array + // will not be confused with a leftover capture object. + saved = slice.call( arguments ); + dataPriv.set( this, type, saved ); + + // Trigger the native event and capture its result + // Support: IE <=9 - 11+ + // focus() and blur() are asynchronous + notAsync = expectSync( this, type ); + this[ type ](); + result = dataPriv.get( this, type ); + if ( saved !== result || notAsync ) { + dataPriv.set( this, type, false ); + } else { + result = {}; + } + if ( saved !== result ) { + + // Cancel the outer synthetic event + event.stopImmediatePropagation(); + event.preventDefault(); + + // Support: Chrome 86+ + // In Chrome, if an element having a focusout handler is blurred by + // clicking outside of it, it invokes the handler synchronously. If + // that handler calls `.remove()` on the element, the data is cleared, + // leaving `result` undefined. We need to guard against this. + return result && result.value; + } + + // If this is an inner synthetic event for an event with a bubbling surrogate + // (focus or blur), assume that the surrogate already propagated from triggering the + // native event and prevent that from happening again here. + // This technically gets the ordering wrong w.r.t. to `.trigger()` (in which the + // bubbling surrogate propagates *after* the non-bubbling base), but that seems + // less bad than duplication. + } else if ( ( jQuery.event.special[ type ] || {} ).delegateType ) { + event.stopPropagation(); + } + + // If this is a native event triggered above, everything is now in order + // Fire an inner synthetic event with the original arguments + } else if ( saved.length ) { + + // ...and capture the result + dataPriv.set( this, type, { + value: jQuery.event.trigger( + + // Support: IE <=9 - 11+ + // Extend with the prototype to reset the above stopImmediatePropagation() + jQuery.extend( saved[ 0 ], jQuery.Event.prototype ), + saved.slice( 1 ), + this + ) + } ); + + // Abort handling of the native event + event.stopImmediatePropagation(); + } + } + } ); +} + +jQuery.removeEvent = function( elem, type, handle ) { + + // This "if" is needed for plain objects + if ( elem.removeEventListener ) { + elem.removeEventListener( type, handle ); + } +}; + +jQuery.Event = function( src, props ) { + + // Allow instantiation without the 'new' keyword + if ( !( this instanceof jQuery.Event ) ) { + return new jQuery.Event( src, props ); + } + + // Event object + if ( src && src.type ) { + this.originalEvent = src; + this.type = src.type; + + // Events bubbling up the document may have been marked as prevented + // by a handler lower down the tree; reflect the correct value. + this.isDefaultPrevented = src.defaultPrevented || + src.defaultPrevented === undefined && + + // Support: Android <=2.3 only + src.returnValue === false ? + returnTrue : + returnFalse; + + // Create target properties + // Support: Safari <=6 - 7 only + // Target should not be a text node (#504, #13143) + this.target = ( src.target && src.target.nodeType === 3 ) ? + src.target.parentNode : + src.target; + + this.currentTarget = src.currentTarget; + this.relatedTarget = src.relatedTarget; + + // Event type + } else { + this.type = src; + } + + // Put explicitly provided properties onto the event object + if ( props ) { + jQuery.extend( this, props ); + } + + // Create a timestamp if incoming event doesn't have one + this.timeStamp = src && src.timeStamp || Date.now(); + + // Mark it as fixed + this[ jQuery.expando ] = true; +}; + +// jQuery.Event is based on DOM3 Events as specified by the ECMAScript Language Binding +// https://www.w3.org/TR/2003/WD-DOM-Level-3-Events-20030331/ecma-script-binding.html +jQuery.Event.prototype = { + constructor: jQuery.Event, + isDefaultPrevented: returnFalse, + isPropagationStopped: returnFalse, + isImmediatePropagationStopped: returnFalse, + isSimulated: false, + + preventDefault: function() { + var e = this.originalEvent; + + this.isDefaultPrevented = returnTrue; + + if ( e && !this.isSimulated ) { + e.preventDefault(); + } + }, + stopPropagation: function() { + var e = this.originalEvent; + + this.isPropagationStopped = returnTrue; + + if ( e && !this.isSimulated ) { + e.stopPropagation(); + } + }, + stopImmediatePropagation: function() { + var e = this.originalEvent; + + this.isImmediatePropagationStopped = returnTrue; + + if ( e && !this.isSimulated ) { + e.stopImmediatePropagation(); + } + + this.stopPropagation(); + } +}; + +// Includes all common event props including KeyEvent and MouseEvent specific props +jQuery.each( { + altKey: true, + bubbles: true, + cancelable: true, + changedTouches: true, + ctrlKey: true, + detail: true, + eventPhase: true, + metaKey: true, + pageX: true, + pageY: true, + shiftKey: true, + view: true, + "char": true, + code: true, + charCode: true, + key: true, + keyCode: true, + button: true, + buttons: true, + clientX: true, + clientY: true, + offsetX: true, + offsetY: true, + pointerId: true, + pointerType: true, + screenX: true, + screenY: true, + targetTouches: true, + toElement: true, + touches: true, + which: true +}, jQuery.event.addProp ); + +jQuery.each( { focus: "focusin", blur: "focusout" }, function( type, delegateType ) { + jQuery.event.special[ type ] = { + + // Utilize native event if possible so blur/focus sequence is correct + setup: function() { + + // Claim the first handler + // dataPriv.set( this, "focus", ... ) + // dataPriv.set( this, "blur", ... ) + leverageNative( this, type, expectSync ); + + // Return false to allow normal processing in the caller + return false; + }, + trigger: function() { + + // Force setup before trigger + leverageNative( this, type ); + + // Return non-false to allow normal event-path propagation + return true; + }, + + // Suppress native focus or blur as it's already being fired + // in leverageNative. + _default: function() { + return true; + }, + + delegateType: delegateType + }; +} ); + +// Create mouseenter/leave events using mouseover/out and event-time checks +// so that event delegation works in jQuery. +// Do the same for pointerenter/pointerleave and pointerover/pointerout +// +// Support: Safari 7 only +// Safari sends mouseenter too often; see: +// https://bugs.chromium.org/p/chromium/issues/detail?id=470258 +// for the description of the bug (it existed in older Chrome versions as well). +jQuery.each( { + mouseenter: "mouseover", + mouseleave: "mouseout", + pointerenter: "pointerover", + pointerleave: "pointerout" +}, function( orig, fix ) { + jQuery.event.special[ orig ] = { + delegateType: fix, + bindType: fix, + + handle: function( event ) { + var ret, + target = this, + related = event.relatedTarget, + handleObj = event.handleObj; + + // For mouseenter/leave call the handler if related is outside the target. + // NB: No relatedTarget if the mouse left/entered the browser window + if ( !related || ( related !== target && !jQuery.contains( target, related ) ) ) { + event.type = handleObj.origType; + ret = handleObj.handler.apply( this, arguments ); + event.type = fix; + } + return ret; + } + }; +} ); + +jQuery.fn.extend( { + + on: function( types, selector, data, fn ) { + return on( this, types, selector, data, fn ); + }, + one: function( types, selector, data, fn ) { + return on( this, types, selector, data, fn, 1 ); + }, + off: function( types, selector, fn ) { + var handleObj, type; + if ( types && types.preventDefault && types.handleObj ) { + + // ( event ) dispatched jQuery.Event + handleObj = types.handleObj; + jQuery( types.delegateTarget ).off( + handleObj.namespace ? + handleObj.origType + "." + handleObj.namespace : + handleObj.origType, + handleObj.selector, + handleObj.handler + ); + return this; + } + if ( typeof types === "object" ) { + + // ( types-object [, selector] ) + for ( type in types ) { + this.off( type, selector, types[ type ] ); + } + return this; + } + if ( selector === false || typeof selector === "function" ) { + + // ( types [, fn] ) + fn = selector; + selector = undefined; + } + if ( fn === false ) { + fn = returnFalse; + } + return this.each( function() { + jQuery.event.remove( this, types, fn, selector ); + } ); + } +} ); + + +var + + // Support: IE <=10 - 11, Edge 12 - 13 only + // In IE/Edge using regex groups here causes severe slowdowns. + // See https://connect.microsoft.com/IE/feedback/details/1736512/ + rnoInnerhtml = /\s*$/g; + +// Prefer a tbody over its parent table for containing new rows +function manipulationTarget( elem, content ) { + if ( nodeName( elem, "table" ) && + nodeName( content.nodeType !== 11 ? content : content.firstChild, "tr" ) ) { + + return jQuery( elem ).children( "tbody" )[ 0 ] || elem; + } + + return elem; +} + +// Replace/restore the type attribute of script elements for safe DOM manipulation +function disableScript( elem ) { + elem.type = ( elem.getAttribute( "type" ) !== null ) + "/" + elem.type; + return elem; +} +function restoreScript( elem ) { + if ( ( elem.type || "" ).slice( 0, 5 ) === "true/" ) { + elem.type = elem.type.slice( 5 ); + } else { + elem.removeAttribute( "type" ); + } + + return elem; +} + +function cloneCopyEvent( src, dest ) { + var i, l, type, pdataOld, udataOld, udataCur, events; + + if ( dest.nodeType !== 1 ) { + return; + } + + // 1. Copy private data: events, handlers, etc. + if ( dataPriv.hasData( src ) ) { + pdataOld = dataPriv.get( src ); + events = pdataOld.events; + + if ( events ) { + dataPriv.remove( dest, "handle events" ); + + for ( type in events ) { + for ( i = 0, l = events[ type ].length; i < l; i++ ) { + jQuery.event.add( dest, type, events[ type ][ i ] ); + } + } + } + } + + // 2. Copy user data + if ( dataUser.hasData( src ) ) { + udataOld = dataUser.access( src ); + udataCur = jQuery.extend( {}, udataOld ); + + dataUser.set( dest, udataCur ); + } +} + +// Fix IE bugs, see support tests +function fixInput( src, dest ) { + var nodeName = dest.nodeName.toLowerCase(); + + // Fails to persist the checked state of a cloned checkbox or radio button. + if ( nodeName === "input" && rcheckableType.test( src.type ) ) { + dest.checked = src.checked; + + // Fails to return the selected option to the default selected state when cloning options + } else if ( nodeName === "input" || nodeName === "textarea" ) { + dest.defaultValue = src.defaultValue; + } +} + +function domManip( collection, args, callback, ignored ) { + + // Flatten any nested arrays + args = flat( args ); + + var fragment, first, scripts, hasScripts, node, doc, + i = 0, + l = collection.length, + iNoClone = l - 1, + value = args[ 0 ], + valueIsFunction = isFunction( value ); + + // We can't cloneNode fragments that contain checked, in WebKit + if ( valueIsFunction || + ( l > 1 && typeof value === "string" && + !support.checkClone && rchecked.test( value ) ) ) { + return collection.each( function( index ) { + var self = collection.eq( index ); + if ( valueIsFunction ) { + args[ 0 ] = value.call( this, index, self.html() ); + } + domManip( self, args, callback, ignored ); + } ); + } + + if ( l ) { + fragment = buildFragment( args, collection[ 0 ].ownerDocument, false, collection, ignored ); + first = fragment.firstChild; + + if ( fragment.childNodes.length === 1 ) { + fragment = first; + } + + // Require either new content or an interest in ignored elements to invoke the callback + if ( first || ignored ) { + scripts = jQuery.map( getAll( fragment, "script" ), disableScript ); + hasScripts = scripts.length; + + // Use the original fragment for the last item + // instead of the first because it can end up + // being emptied incorrectly in certain situations (#8070). + for ( ; i < l; i++ ) { + node = fragment; + + if ( i !== iNoClone ) { + node = jQuery.clone( node, true, true ); + + // Keep references to cloned scripts for later restoration + if ( hasScripts ) { + + // Support: Android <=4.0 only, PhantomJS 1 only + // push.apply(_, arraylike) throws on ancient WebKit + jQuery.merge( scripts, getAll( node, "script" ) ); + } + } + + callback.call( collection[ i ], node, i ); + } + + if ( hasScripts ) { + doc = scripts[ scripts.length - 1 ].ownerDocument; + + // Reenable scripts + jQuery.map( scripts, restoreScript ); + + // Evaluate executable scripts on first document insertion + for ( i = 0; i < hasScripts; i++ ) { + node = scripts[ i ]; + if ( rscriptType.test( node.type || "" ) && + !dataPriv.access( node, "globalEval" ) && + jQuery.contains( doc, node ) ) { + + if ( node.src && ( node.type || "" ).toLowerCase() !== "module" ) { + + // Optional AJAX dependency, but won't run scripts if not present + if ( jQuery._evalUrl && !node.noModule ) { + jQuery._evalUrl( node.src, { + nonce: node.nonce || node.getAttribute( "nonce" ) + }, doc ); + } + } else { + DOMEval( node.textContent.replace( rcleanScript, "" ), node, doc ); + } + } + } + } + } + } + + return collection; +} + +function remove( elem, selector, keepData ) { + var node, + nodes = selector ? jQuery.filter( selector, elem ) : elem, + i = 0; + + for ( ; ( node = nodes[ i ] ) != null; i++ ) { + if ( !keepData && node.nodeType === 1 ) { + jQuery.cleanData( getAll( node ) ); + } + + if ( node.parentNode ) { + if ( keepData && isAttached( node ) ) { + setGlobalEval( getAll( node, "script" ) ); + } + node.parentNode.removeChild( node ); + } + } + + return elem; +} + +jQuery.extend( { + htmlPrefilter: function( html ) { + return html; + }, + + clone: function( elem, dataAndEvents, deepDataAndEvents ) { + var i, l, srcElements, destElements, + clone = elem.cloneNode( true ), + inPage = isAttached( elem ); + + // Fix IE cloning issues + if ( !support.noCloneChecked && ( elem.nodeType === 1 || elem.nodeType === 11 ) && + !jQuery.isXMLDoc( elem ) ) { + + // We eschew Sizzle here for performance reasons: https://jsperf.com/getall-vs-sizzle/2 + destElements = getAll( clone ); + srcElements = getAll( elem ); + + for ( i = 0, l = srcElements.length; i < l; i++ ) { + fixInput( srcElements[ i ], destElements[ i ] ); + } + } + + // Copy the events from the original to the clone + if ( dataAndEvents ) { + if ( deepDataAndEvents ) { + srcElements = srcElements || getAll( elem ); + destElements = destElements || getAll( clone ); + + for ( i = 0, l = srcElements.length; i < l; i++ ) { + cloneCopyEvent( srcElements[ i ], destElements[ i ] ); + } + } else { + cloneCopyEvent( elem, clone ); + } + } + + // Preserve script evaluation history + destElements = getAll( clone, "script" ); + if ( destElements.length > 0 ) { + setGlobalEval( destElements, !inPage && getAll( elem, "script" ) ); + } + + // Return the cloned set + return clone; + }, + + cleanData: function( elems ) { + var data, elem, type, + special = jQuery.event.special, + i = 0; + + for ( ; ( elem = elems[ i ] ) !== undefined; i++ ) { + if ( acceptData( elem ) ) { + if ( ( data = elem[ dataPriv.expando ] ) ) { + if ( data.events ) { + for ( type in data.events ) { + if ( special[ type ] ) { + jQuery.event.remove( elem, type ); + + // This is a shortcut to avoid jQuery.event.remove's overhead + } else { + jQuery.removeEvent( elem, type, data.handle ); + } + } + } + + // Support: Chrome <=35 - 45+ + // Assign undefined instead of using delete, see Data#remove + elem[ dataPriv.expando ] = undefined; + } + if ( elem[ dataUser.expando ] ) { + + // Support: Chrome <=35 - 45+ + // Assign undefined instead of using delete, see Data#remove + elem[ dataUser.expando ] = undefined; + } + } + } + } +} ); + +jQuery.fn.extend( { + detach: function( selector ) { + return remove( this, selector, true ); + }, + + remove: function( selector ) { + return remove( this, selector ); + }, + + text: function( value ) { + return access( this, function( value ) { + return value === undefined ? + jQuery.text( this ) : + this.empty().each( function() { + if ( this.nodeType === 1 || this.nodeType === 11 || this.nodeType === 9 ) { + this.textContent = value; + } + } ); + }, null, value, arguments.length ); + }, + + append: function() { + return domManip( this, arguments, function( elem ) { + if ( this.nodeType === 1 || this.nodeType === 11 || this.nodeType === 9 ) { + var target = manipulationTarget( this, elem ); + target.appendChild( elem ); + } + } ); + }, + + prepend: function() { + return domManip( this, arguments, function( elem ) { + if ( this.nodeType === 1 || this.nodeType === 11 || this.nodeType === 9 ) { + var target = manipulationTarget( this, elem ); + target.insertBefore( elem, target.firstChild ); + } + } ); + }, + + before: function() { + return domManip( this, arguments, function( elem ) { + if ( this.parentNode ) { + this.parentNode.insertBefore( elem, this ); + } + } ); + }, + + after: function() { + return domManip( this, arguments, function( elem ) { + if ( this.parentNode ) { + this.parentNode.insertBefore( elem, this.nextSibling ); + } + } ); + }, + + empty: function() { + var elem, + i = 0; + + for ( ; ( elem = this[ i ] ) != null; i++ ) { + if ( elem.nodeType === 1 ) { + + // Prevent memory leaks + jQuery.cleanData( getAll( elem, false ) ); + + // Remove any remaining nodes + elem.textContent = ""; + } + } + + return this; + }, + + clone: function( dataAndEvents, deepDataAndEvents ) { + dataAndEvents = dataAndEvents == null ? false : dataAndEvents; + deepDataAndEvents = deepDataAndEvents == null ? dataAndEvents : deepDataAndEvents; + + return this.map( function() { + return jQuery.clone( this, dataAndEvents, deepDataAndEvents ); + } ); + }, + + html: function( value ) { + return access( this, function( value ) { + var elem = this[ 0 ] || {}, + i = 0, + l = this.length; + + if ( value === undefined && elem.nodeType === 1 ) { + return elem.innerHTML; + } + + // See if we can take a shortcut and just use innerHTML + if ( typeof value === "string" && !rnoInnerhtml.test( value ) && + !wrapMap[ ( rtagName.exec( value ) || [ "", "" ] )[ 1 ].toLowerCase() ] ) { + + value = jQuery.htmlPrefilter( value ); + + try { + for ( ; i < l; i++ ) { + elem = this[ i ] || {}; + + // Remove element nodes and prevent memory leaks + if ( elem.nodeType === 1 ) { + jQuery.cleanData( getAll( elem, false ) ); + elem.innerHTML = value; + } + } + + elem = 0; + + // If using innerHTML throws an exception, use the fallback method + } catch ( e ) {} + } + + if ( elem ) { + this.empty().append( value ); + } + }, null, value, arguments.length ); + }, + + replaceWith: function() { + var ignored = []; + + // Make the changes, replacing each non-ignored context element with the new content + return domManip( this, arguments, function( elem ) { + var parent = this.parentNode; + + if ( jQuery.inArray( this, ignored ) < 0 ) { + jQuery.cleanData( getAll( this ) ); + if ( parent ) { + parent.replaceChild( elem, this ); + } + } + + // Force callback invocation + }, ignored ); + } +} ); + +jQuery.each( { + appendTo: "append", + prependTo: "prepend", + insertBefore: "before", + insertAfter: "after", + replaceAll: "replaceWith" +}, function( name, original ) { + jQuery.fn[ name ] = function( selector ) { + var elems, + ret = [], + insert = jQuery( selector ), + last = insert.length - 1, + i = 0; + + for ( ; i <= last; i++ ) { + elems = i === last ? this : this.clone( true ); + jQuery( insert[ i ] )[ original ]( elems ); + + // Support: Android <=4.0 only, PhantomJS 1 only + // .get() because push.apply(_, arraylike) throws on ancient WebKit + push.apply( ret, elems.get() ); + } + + return this.pushStack( ret ); + }; +} ); +var rnumnonpx = new RegExp( "^(" + pnum + ")(?!px)[a-z%]+$", "i" ); + +var getStyles = function( elem ) { + + // Support: IE <=11 only, Firefox <=30 (#15098, #14150) + // IE throws on elements created in popups + // FF meanwhile throws on frame elements through "defaultView.getComputedStyle" + var view = elem.ownerDocument.defaultView; + + if ( !view || !view.opener ) { + view = window; + } + + return view.getComputedStyle( elem ); + }; + +var swap = function( elem, options, callback ) { + var ret, name, + old = {}; + + // Remember the old values, and insert the new ones + for ( name in options ) { + old[ name ] = elem.style[ name ]; + elem.style[ name ] = options[ name ]; + } + + ret = callback.call( elem ); + + // Revert the old values + for ( name in options ) { + elem.style[ name ] = old[ name ]; + } + + return ret; +}; + + +var rboxStyle = new RegExp( cssExpand.join( "|" ), "i" ); + + + +( function() { + + // Executing both pixelPosition & boxSizingReliable tests require only one layout + // so they're executed at the same time to save the second computation. + function computeStyleTests() { + + // This is a singleton, we need to execute it only once + if ( !div ) { + return; + } + + container.style.cssText = "position:absolute;left:-11111px;width:60px;" + + "margin-top:1px;padding:0;border:0"; + div.style.cssText = + "position:relative;display:block;box-sizing:border-box;overflow:scroll;" + + "margin:auto;border:1px;padding:1px;" + + "width:60%;top:1%"; + documentElement.appendChild( container ).appendChild( div ); + + var divStyle = window.getComputedStyle( div ); + pixelPositionVal = divStyle.top !== "1%"; + + // Support: Android 4.0 - 4.3 only, Firefox <=3 - 44 + reliableMarginLeftVal = roundPixelMeasures( divStyle.marginLeft ) === 12; + + // Support: Android 4.0 - 4.3 only, Safari <=9.1 - 10.1, iOS <=7.0 - 9.3 + // Some styles come back with percentage values, even though they shouldn't + div.style.right = "60%"; + pixelBoxStylesVal = roundPixelMeasures( divStyle.right ) === 36; + + // Support: IE 9 - 11 only + // Detect misreporting of content dimensions for box-sizing:border-box elements + boxSizingReliableVal = roundPixelMeasures( divStyle.width ) === 36; + + // Support: IE 9 only + // Detect overflow:scroll screwiness (gh-3699) + // Support: Chrome <=64 + // Don't get tricked when zoom affects offsetWidth (gh-4029) + div.style.position = "absolute"; + scrollboxSizeVal = roundPixelMeasures( div.offsetWidth / 3 ) === 12; + + documentElement.removeChild( container ); + + // Nullify the div so it wouldn't be stored in the memory and + // it will also be a sign that checks already performed + div = null; + } + + function roundPixelMeasures( measure ) { + return Math.round( parseFloat( measure ) ); + } + + var pixelPositionVal, boxSizingReliableVal, scrollboxSizeVal, pixelBoxStylesVal, + reliableTrDimensionsVal, reliableMarginLeftVal, + container = document.createElement( "div" ), + div = document.createElement( "div" ); + + // Finish early in limited (non-browser) environments + if ( !div.style ) { + return; + } + + // Support: IE <=9 - 11 only + // Style of cloned element affects source element cloned (#8908) + div.style.backgroundClip = "content-box"; + div.cloneNode( true ).style.backgroundClip = ""; + support.clearCloneStyle = div.style.backgroundClip === "content-box"; + + jQuery.extend( support, { + boxSizingReliable: function() { + computeStyleTests(); + return boxSizingReliableVal; + }, + pixelBoxStyles: function() { + computeStyleTests(); + return pixelBoxStylesVal; + }, + pixelPosition: function() { + computeStyleTests(); + return pixelPositionVal; + }, + reliableMarginLeft: function() { + computeStyleTests(); + return reliableMarginLeftVal; + }, + scrollboxSize: function() { + computeStyleTests(); + return scrollboxSizeVal; + }, + + // Support: IE 9 - 11+, Edge 15 - 18+ + // IE/Edge misreport `getComputedStyle` of table rows with width/height + // set in CSS while `offset*` properties report correct values. + // Behavior in IE 9 is more subtle than in newer versions & it passes + // some versions of this test; make sure not to make it pass there! + // + // Support: Firefox 70+ + // Only Firefox includes border widths + // in computed dimensions. (gh-4529) + reliableTrDimensions: function() { + var table, tr, trChild, trStyle; + if ( reliableTrDimensionsVal == null ) { + table = document.createElement( "table" ); + tr = document.createElement( "tr" ); + trChild = document.createElement( "div" ); + + table.style.cssText = "position:absolute;left:-11111px;border-collapse:separate"; + tr.style.cssText = "border:1px solid"; + + // Support: Chrome 86+ + // Height set through cssText does not get applied. + // Computed height then comes back as 0. + tr.style.height = "1px"; + trChild.style.height = "9px"; + + // Support: Android 8 Chrome 86+ + // In our bodyBackground.html iframe, + // display for all div elements is set to "inline", + // which causes a problem only in Android 8 Chrome 86. + // Ensuring the div is display: block + // gets around this issue. + trChild.style.display = "block"; + + documentElement + .appendChild( table ) + .appendChild( tr ) + .appendChild( trChild ); + + trStyle = window.getComputedStyle( tr ); + reliableTrDimensionsVal = ( parseInt( trStyle.height, 10 ) + + parseInt( trStyle.borderTopWidth, 10 ) + + parseInt( trStyle.borderBottomWidth, 10 ) ) === tr.offsetHeight; + + documentElement.removeChild( table ); + } + return reliableTrDimensionsVal; + } + } ); +} )(); + + +function curCSS( elem, name, computed ) { + var width, minWidth, maxWidth, ret, + + // Support: Firefox 51+ + // Retrieving style before computed somehow + // fixes an issue with getting wrong values + // on detached elements + style = elem.style; + + computed = computed || getStyles( elem ); + + // getPropertyValue is needed for: + // .css('filter') (IE 9 only, #12537) + // .css('--customProperty) (#3144) + if ( computed ) { + ret = computed.getPropertyValue( name ) || computed[ name ]; + + if ( ret === "" && !isAttached( elem ) ) { + ret = jQuery.style( elem, name ); + } + + // A tribute to the "awesome hack by Dean Edwards" + // Android Browser returns percentage for some values, + // but width seems to be reliably pixels. + // This is against the CSSOM draft spec: + // https://drafts.csswg.org/cssom/#resolved-values + if ( !support.pixelBoxStyles() && rnumnonpx.test( ret ) && rboxStyle.test( name ) ) { + + // Remember the original values + width = style.width; + minWidth = style.minWidth; + maxWidth = style.maxWidth; + + // Put in the new values to get a computed value out + style.minWidth = style.maxWidth = style.width = ret; + ret = computed.width; + + // Revert the changed values + style.width = width; + style.minWidth = minWidth; + style.maxWidth = maxWidth; + } + } + + return ret !== undefined ? + + // Support: IE <=9 - 11 only + // IE returns zIndex value as an integer. + ret + "" : + ret; +} + + +function addGetHookIf( conditionFn, hookFn ) { + + // Define the hook, we'll check on the first run if it's really needed. + return { + get: function() { + if ( conditionFn() ) { + + // Hook not needed (or it's not possible to use it due + // to missing dependency), remove it. + delete this.get; + return; + } + + // Hook needed; redefine it so that the support test is not executed again. + return ( this.get = hookFn ).apply( this, arguments ); + } + }; +} + + +var cssPrefixes = [ "Webkit", "Moz", "ms" ], + emptyStyle = document.createElement( "div" ).style, + vendorProps = {}; + +// Return a vendor-prefixed property or undefined +function vendorPropName( name ) { + + // Check for vendor prefixed names + var capName = name[ 0 ].toUpperCase() + name.slice( 1 ), + i = cssPrefixes.length; + + while ( i-- ) { + name = cssPrefixes[ i ] + capName; + if ( name in emptyStyle ) { + return name; + } + } +} + +// Return a potentially-mapped jQuery.cssProps or vendor prefixed property +function finalPropName( name ) { + var final = jQuery.cssProps[ name ] || vendorProps[ name ]; + + if ( final ) { + return final; + } + if ( name in emptyStyle ) { + return name; + } + return vendorProps[ name ] = vendorPropName( name ) || name; +} + + +var + + // Swappable if display is none or starts with table + // except "table", "table-cell", or "table-caption" + // See here for display values: https://developer.mozilla.org/en-US/docs/CSS/display + rdisplayswap = /^(none|table(?!-c[ea]).+)/, + rcustomProp = /^--/, + cssShow = { position: "absolute", visibility: "hidden", display: "block" }, + cssNormalTransform = { + letterSpacing: "0", + fontWeight: "400" + }; + +function setPositiveNumber( _elem, value, subtract ) { + + // Any relative (+/-) values have already been + // normalized at this point + var matches = rcssNum.exec( value ); + return matches ? + + // Guard against undefined "subtract", e.g., when used as in cssHooks + Math.max( 0, matches[ 2 ] - ( subtract || 0 ) ) + ( matches[ 3 ] || "px" ) : + value; +} + +function boxModelAdjustment( elem, dimension, box, isBorderBox, styles, computedVal ) { + var i = dimension === "width" ? 1 : 0, + extra = 0, + delta = 0; + + // Adjustment may not be necessary + if ( box === ( isBorderBox ? "border" : "content" ) ) { + return 0; + } + + for ( ; i < 4; i += 2 ) { + + // Both box models exclude margin + if ( box === "margin" ) { + delta += jQuery.css( elem, box + cssExpand[ i ], true, styles ); + } + + // If we get here with a content-box, we're seeking "padding" or "border" or "margin" + if ( !isBorderBox ) { + + // Add padding + delta += jQuery.css( elem, "padding" + cssExpand[ i ], true, styles ); + + // For "border" or "margin", add border + if ( box !== "padding" ) { + delta += jQuery.css( elem, "border" + cssExpand[ i ] + "Width", true, styles ); + + // But still keep track of it otherwise + } else { + extra += jQuery.css( elem, "border" + cssExpand[ i ] + "Width", true, styles ); + } + + // If we get here with a border-box (content + padding + border), we're seeking "content" or + // "padding" or "margin" + } else { + + // For "content", subtract padding + if ( box === "content" ) { + delta -= jQuery.css( elem, "padding" + cssExpand[ i ], true, styles ); + } + + // For "content" or "padding", subtract border + if ( box !== "margin" ) { + delta -= jQuery.css( elem, "border" + cssExpand[ i ] + "Width", true, styles ); + } + } + } + + // Account for positive content-box scroll gutter when requested by providing computedVal + if ( !isBorderBox && computedVal >= 0 ) { + + // offsetWidth/offsetHeight is a rounded sum of content, padding, scroll gutter, and border + // Assuming integer scroll gutter, subtract the rest and round down + delta += Math.max( 0, Math.ceil( + elem[ "offset" + dimension[ 0 ].toUpperCase() + dimension.slice( 1 ) ] - + computedVal - + delta - + extra - + 0.5 + + // If offsetWidth/offsetHeight is unknown, then we can't determine content-box scroll gutter + // Use an explicit zero to avoid NaN (gh-3964) + ) ) || 0; + } + + return delta; +} + +function getWidthOrHeight( elem, dimension, extra ) { + + // Start with computed style + var styles = getStyles( elem ), + + // To avoid forcing a reflow, only fetch boxSizing if we need it (gh-4322). + // Fake content-box until we know it's needed to know the true value. + boxSizingNeeded = !support.boxSizingReliable() || extra, + isBorderBox = boxSizingNeeded && + jQuery.css( elem, "boxSizing", false, styles ) === "border-box", + valueIsBorderBox = isBorderBox, + + val = curCSS( elem, dimension, styles ), + offsetProp = "offset" + dimension[ 0 ].toUpperCase() + dimension.slice( 1 ); + + // Support: Firefox <=54 + // Return a confounding non-pixel value or feign ignorance, as appropriate. + if ( rnumnonpx.test( val ) ) { + if ( !extra ) { + return val; + } + val = "auto"; + } + + + // Support: IE 9 - 11 only + // Use offsetWidth/offsetHeight for when box sizing is unreliable. + // In those cases, the computed value can be trusted to be border-box. + if ( ( !support.boxSizingReliable() && isBorderBox || + + // Support: IE 10 - 11+, Edge 15 - 18+ + // IE/Edge misreport `getComputedStyle` of table rows with width/height + // set in CSS while `offset*` properties report correct values. + // Interestingly, in some cases IE 9 doesn't suffer from this issue. + !support.reliableTrDimensions() && nodeName( elem, "tr" ) || + + // Fall back to offsetWidth/offsetHeight when value is "auto" + // This happens for inline elements with no explicit setting (gh-3571) + val === "auto" || + + // Support: Android <=4.1 - 4.3 only + // Also use offsetWidth/offsetHeight for misreported inline dimensions (gh-3602) + !parseFloat( val ) && jQuery.css( elem, "display", false, styles ) === "inline" ) && + + // Make sure the element is visible & connected + elem.getClientRects().length ) { + + isBorderBox = jQuery.css( elem, "boxSizing", false, styles ) === "border-box"; + + // Where available, offsetWidth/offsetHeight approximate border box dimensions. + // Where not available (e.g., SVG), assume unreliable box-sizing and interpret the + // retrieved value as a content box dimension. + valueIsBorderBox = offsetProp in elem; + if ( valueIsBorderBox ) { + val = elem[ offsetProp ]; + } + } + + // Normalize "" and auto + val = parseFloat( val ) || 0; + + // Adjust for the element's box model + return ( val + + boxModelAdjustment( + elem, + dimension, + extra || ( isBorderBox ? "border" : "content" ), + valueIsBorderBox, + styles, + + // Provide the current computed size to request scroll gutter calculation (gh-3589) + val + ) + ) + "px"; +} + +jQuery.extend( { + + // Add in style property hooks for overriding the default + // behavior of getting and setting a style property + cssHooks: { + opacity: { + get: function( elem, computed ) { + if ( computed ) { + + // We should always get a number back from opacity + var ret = curCSS( elem, "opacity" ); + return ret === "" ? "1" : ret; + } + } + } + }, + + // Don't automatically add "px" to these possibly-unitless properties + cssNumber: { + "animationIterationCount": true, + "columnCount": true, + "fillOpacity": true, + "flexGrow": true, + "flexShrink": true, + "fontWeight": true, + "gridArea": true, + "gridColumn": true, + "gridColumnEnd": true, + "gridColumnStart": true, + "gridRow": true, + "gridRowEnd": true, + "gridRowStart": true, + "lineHeight": true, + "opacity": true, + "order": true, + "orphans": true, + "widows": true, + "zIndex": true, + "zoom": true + }, + + // Add in properties whose names you wish to fix before + // setting or getting the value + cssProps: {}, + + // Get and set the style property on a DOM Node + style: function( elem, name, value, extra ) { + + // Don't set styles on text and comment nodes + if ( !elem || elem.nodeType === 3 || elem.nodeType === 8 || !elem.style ) { + return; + } + + // Make sure that we're working with the right name + var ret, type, hooks, + origName = camelCase( name ), + isCustomProp = rcustomProp.test( name ), + style = elem.style; + + // Make sure that we're working with the right name. We don't + // want to query the value if it is a CSS custom property + // since they are user-defined. + if ( !isCustomProp ) { + name = finalPropName( origName ); + } + + // Gets hook for the prefixed version, then unprefixed version + hooks = jQuery.cssHooks[ name ] || jQuery.cssHooks[ origName ]; + + // Check if we're setting a value + if ( value !== undefined ) { + type = typeof value; + + // Convert "+=" or "-=" to relative numbers (#7345) + if ( type === "string" && ( ret = rcssNum.exec( value ) ) && ret[ 1 ] ) { + value = adjustCSS( elem, name, ret ); + + // Fixes bug #9237 + type = "number"; + } + + // Make sure that null and NaN values aren't set (#7116) + if ( value == null || value !== value ) { + return; + } + + // If a number was passed in, add the unit (except for certain CSS properties) + // The isCustomProp check can be removed in jQuery 4.0 when we only auto-append + // "px" to a few hardcoded values. + if ( type === "number" && !isCustomProp ) { + value += ret && ret[ 3 ] || ( jQuery.cssNumber[ origName ] ? "" : "px" ); + } + + // background-* props affect original clone's values + if ( !support.clearCloneStyle && value === "" && name.indexOf( "background" ) === 0 ) { + style[ name ] = "inherit"; + } + + // If a hook was provided, use that value, otherwise just set the specified value + if ( !hooks || !( "set" in hooks ) || + ( value = hooks.set( elem, value, extra ) ) !== undefined ) { + + if ( isCustomProp ) { + style.setProperty( name, value ); + } else { + style[ name ] = value; + } + } + + } else { + + // If a hook was provided get the non-computed value from there + if ( hooks && "get" in hooks && + ( ret = hooks.get( elem, false, extra ) ) !== undefined ) { + + return ret; + } + + // Otherwise just get the value from the style object + return style[ name ]; + } + }, + + css: function( elem, name, extra, styles ) { + var val, num, hooks, + origName = camelCase( name ), + isCustomProp = rcustomProp.test( name ); + + // Make sure that we're working with the right name. We don't + // want to modify the value if it is a CSS custom property + // since they are user-defined. + if ( !isCustomProp ) { + name = finalPropName( origName ); + } + + // Try prefixed name followed by the unprefixed name + hooks = jQuery.cssHooks[ name ] || jQuery.cssHooks[ origName ]; + + // If a hook was provided get the computed value from there + if ( hooks && "get" in hooks ) { + val = hooks.get( elem, true, extra ); + } + + // Otherwise, if a way to get the computed value exists, use that + if ( val === undefined ) { + val = curCSS( elem, name, styles ); + } + + // Convert "normal" to computed value + if ( val === "normal" && name in cssNormalTransform ) { + val = cssNormalTransform[ name ]; + } + + // Make numeric if forced or a qualifier was provided and val looks numeric + if ( extra === "" || extra ) { + num = parseFloat( val ); + return extra === true || isFinite( num ) ? num || 0 : val; + } + + return val; + } +} ); + +jQuery.each( [ "height", "width" ], function( _i, dimension ) { + jQuery.cssHooks[ dimension ] = { + get: function( elem, computed, extra ) { + if ( computed ) { + + // Certain elements can have dimension info if we invisibly show them + // but it must have a current display style that would benefit + return rdisplayswap.test( jQuery.css( elem, "display" ) ) && + + // Support: Safari 8+ + // Table columns in Safari have non-zero offsetWidth & zero + // getBoundingClientRect().width unless display is changed. + // Support: IE <=11 only + // Running getBoundingClientRect on a disconnected node + // in IE throws an error. + ( !elem.getClientRects().length || !elem.getBoundingClientRect().width ) ? + swap( elem, cssShow, function() { + return getWidthOrHeight( elem, dimension, extra ); + } ) : + getWidthOrHeight( elem, dimension, extra ); + } + }, + + set: function( elem, value, extra ) { + var matches, + styles = getStyles( elem ), + + // Only read styles.position if the test has a chance to fail + // to avoid forcing a reflow. + scrollboxSizeBuggy = !support.scrollboxSize() && + styles.position === "absolute", + + // To avoid forcing a reflow, only fetch boxSizing if we need it (gh-3991) + boxSizingNeeded = scrollboxSizeBuggy || extra, + isBorderBox = boxSizingNeeded && + jQuery.css( elem, "boxSizing", false, styles ) === "border-box", + subtract = extra ? + boxModelAdjustment( + elem, + dimension, + extra, + isBorderBox, + styles + ) : + 0; + + // Account for unreliable border-box dimensions by comparing offset* to computed and + // faking a content-box to get border and padding (gh-3699) + if ( isBorderBox && scrollboxSizeBuggy ) { + subtract -= Math.ceil( + elem[ "offset" + dimension[ 0 ].toUpperCase() + dimension.slice( 1 ) ] - + parseFloat( styles[ dimension ] ) - + boxModelAdjustment( elem, dimension, "border", false, styles ) - + 0.5 + ); + } + + // Convert to pixels if value adjustment is needed + if ( subtract && ( matches = rcssNum.exec( value ) ) && + ( matches[ 3 ] || "px" ) !== "px" ) { + + elem.style[ dimension ] = value; + value = jQuery.css( elem, dimension ); + } + + return setPositiveNumber( elem, value, subtract ); + } + }; +} ); + +jQuery.cssHooks.marginLeft = addGetHookIf( support.reliableMarginLeft, + function( elem, computed ) { + if ( computed ) { + return ( parseFloat( curCSS( elem, "marginLeft" ) ) || + elem.getBoundingClientRect().left - + swap( elem, { marginLeft: 0 }, function() { + return elem.getBoundingClientRect().left; + } ) + ) + "px"; + } + } +); + +// These hooks are used by animate to expand properties +jQuery.each( { + margin: "", + padding: "", + border: "Width" +}, function( prefix, suffix ) { + jQuery.cssHooks[ prefix + suffix ] = { + expand: function( value ) { + var i = 0, + expanded = {}, + + // Assumes a single number if not a string + parts = typeof value === "string" ? value.split( " " ) : [ value ]; + + for ( ; i < 4; i++ ) { + expanded[ prefix + cssExpand[ i ] + suffix ] = + parts[ i ] || parts[ i - 2 ] || parts[ 0 ]; + } + + return expanded; + } + }; + + if ( prefix !== "margin" ) { + jQuery.cssHooks[ prefix + suffix ].set = setPositiveNumber; + } +} ); + +jQuery.fn.extend( { + css: function( name, value ) { + return access( this, function( elem, name, value ) { + var styles, len, + map = {}, + i = 0; + + if ( Array.isArray( name ) ) { + styles = getStyles( elem ); + len = name.length; + + for ( ; i < len; i++ ) { + map[ name[ i ] ] = jQuery.css( elem, name[ i ], false, styles ); + } + + return map; + } + + return value !== undefined ? + jQuery.style( elem, name, value ) : + jQuery.css( elem, name ); + }, name, value, arguments.length > 1 ); + } +} ); + + +function Tween( elem, options, prop, end, easing ) { + return new Tween.prototype.init( elem, options, prop, end, easing ); +} +jQuery.Tween = Tween; + +Tween.prototype = { + constructor: Tween, + init: function( elem, options, prop, end, easing, unit ) { + this.elem = elem; + this.prop = prop; + this.easing = easing || jQuery.easing._default; + this.options = options; + this.start = this.now = this.cur(); + this.end = end; + this.unit = unit || ( jQuery.cssNumber[ prop ] ? "" : "px" ); + }, + cur: function() { + var hooks = Tween.propHooks[ this.prop ]; + + return hooks && hooks.get ? + hooks.get( this ) : + Tween.propHooks._default.get( this ); + }, + run: function( percent ) { + var eased, + hooks = Tween.propHooks[ this.prop ]; + + if ( this.options.duration ) { + this.pos = eased = jQuery.easing[ this.easing ]( + percent, this.options.duration * percent, 0, 1, this.options.duration + ); + } else { + this.pos = eased = percent; + } + this.now = ( this.end - this.start ) * eased + this.start; + + if ( this.options.step ) { + this.options.step.call( this.elem, this.now, this ); + } + + if ( hooks && hooks.set ) { + hooks.set( this ); + } else { + Tween.propHooks._default.set( this ); + } + return this; + } +}; + +Tween.prototype.init.prototype = Tween.prototype; + +Tween.propHooks = { + _default: { + get: function( tween ) { + var result; + + // Use a property on the element directly when it is not a DOM element, + // or when there is no matching style property that exists. + if ( tween.elem.nodeType !== 1 || + tween.elem[ tween.prop ] != null && tween.elem.style[ tween.prop ] == null ) { + return tween.elem[ tween.prop ]; + } + + // Passing an empty string as a 3rd parameter to .css will automatically + // attempt a parseFloat and fallback to a string if the parse fails. + // Simple values such as "10px" are parsed to Float; + // complex values such as "rotate(1rad)" are returned as-is. + result = jQuery.css( tween.elem, tween.prop, "" ); + + // Empty strings, null, undefined and "auto" are converted to 0. + return !result || result === "auto" ? 0 : result; + }, + set: function( tween ) { + + // Use step hook for back compat. + // Use cssHook if its there. + // Use .style if available and use plain properties where available. + if ( jQuery.fx.step[ tween.prop ] ) { + jQuery.fx.step[ tween.prop ]( tween ); + } else if ( tween.elem.nodeType === 1 && ( + jQuery.cssHooks[ tween.prop ] || + tween.elem.style[ finalPropName( tween.prop ) ] != null ) ) { + jQuery.style( tween.elem, tween.prop, tween.now + tween.unit ); + } else { + tween.elem[ tween.prop ] = tween.now; + } + } + } +}; + +// Support: IE <=9 only +// Panic based approach to setting things on disconnected nodes +Tween.propHooks.scrollTop = Tween.propHooks.scrollLeft = { + set: function( tween ) { + if ( tween.elem.nodeType && tween.elem.parentNode ) { + tween.elem[ tween.prop ] = tween.now; + } + } +}; + +jQuery.easing = { + linear: function( p ) { + return p; + }, + swing: function( p ) { + return 0.5 - Math.cos( p * Math.PI ) / 2; + }, + _default: "swing" +}; + +jQuery.fx = Tween.prototype.init; + +// Back compat <1.8 extension point +jQuery.fx.step = {}; + + + + +var + fxNow, inProgress, + rfxtypes = /^(?:toggle|show|hide)$/, + rrun = /queueHooks$/; + +function schedule() { + if ( inProgress ) { + if ( document.hidden === false && window.requestAnimationFrame ) { + window.requestAnimationFrame( schedule ); + } else { + window.setTimeout( schedule, jQuery.fx.interval ); + } + + jQuery.fx.tick(); + } +} + +// Animations created synchronously will run synchronously +function createFxNow() { + window.setTimeout( function() { + fxNow = undefined; + } ); + return ( fxNow = Date.now() ); +} + +// Generate parameters to create a standard animation +function genFx( type, includeWidth ) { + var which, + i = 0, + attrs = { height: type }; + + // If we include width, step value is 1 to do all cssExpand values, + // otherwise step value is 2 to skip over Left and Right + includeWidth = includeWidth ? 1 : 0; + for ( ; i < 4; i += 2 - includeWidth ) { + which = cssExpand[ i ]; + attrs[ "margin" + which ] = attrs[ "padding" + which ] = type; + } + + if ( includeWidth ) { + attrs.opacity = attrs.width = type; + } + + return attrs; +} + +function createTween( value, prop, animation ) { + var tween, + collection = ( Animation.tweeners[ prop ] || [] ).concat( Animation.tweeners[ "*" ] ), + index = 0, + length = collection.length; + for ( ; index < length; index++ ) { + if ( ( tween = collection[ index ].call( animation, prop, value ) ) ) { + + // We're done with this property + return tween; + } + } +} + +function defaultPrefilter( elem, props, opts ) { + var prop, value, toggle, hooks, oldfire, propTween, restoreDisplay, display, + isBox = "width" in props || "height" in props, + anim = this, + orig = {}, + style = elem.style, + hidden = elem.nodeType && isHiddenWithinTree( elem ), + dataShow = dataPriv.get( elem, "fxshow" ); + + // Queue-skipping animations hijack the fx hooks + if ( !opts.queue ) { + hooks = jQuery._queueHooks( elem, "fx" ); + if ( hooks.unqueued == null ) { + hooks.unqueued = 0; + oldfire = hooks.empty.fire; + hooks.empty.fire = function() { + if ( !hooks.unqueued ) { + oldfire(); + } + }; + } + hooks.unqueued++; + + anim.always( function() { + + // Ensure the complete handler is called before this completes + anim.always( function() { + hooks.unqueued--; + if ( !jQuery.queue( elem, "fx" ).length ) { + hooks.empty.fire(); + } + } ); + } ); + } + + // Detect show/hide animations + for ( prop in props ) { + value = props[ prop ]; + if ( rfxtypes.test( value ) ) { + delete props[ prop ]; + toggle = toggle || value === "toggle"; + if ( value === ( hidden ? "hide" : "show" ) ) { + + // Pretend to be hidden if this is a "show" and + // there is still data from a stopped show/hide + if ( value === "show" && dataShow && dataShow[ prop ] !== undefined ) { + hidden = true; + + // Ignore all other no-op show/hide data + } else { + continue; + } + } + orig[ prop ] = dataShow && dataShow[ prop ] || jQuery.style( elem, prop ); + } + } + + // Bail out if this is a no-op like .hide().hide() + propTween = !jQuery.isEmptyObject( props ); + if ( !propTween && jQuery.isEmptyObject( orig ) ) { + return; + } + + // Restrict "overflow" and "display" styles during box animations + if ( isBox && elem.nodeType === 1 ) { + + // Support: IE <=9 - 11, Edge 12 - 15 + // Record all 3 overflow attributes because IE does not infer the shorthand + // from identically-valued overflowX and overflowY and Edge just mirrors + // the overflowX value there. + opts.overflow = [ style.overflow, style.overflowX, style.overflowY ]; + + // Identify a display type, preferring old show/hide data over the CSS cascade + restoreDisplay = dataShow && dataShow.display; + if ( restoreDisplay == null ) { + restoreDisplay = dataPriv.get( elem, "display" ); + } + display = jQuery.css( elem, "display" ); + if ( display === "none" ) { + if ( restoreDisplay ) { + display = restoreDisplay; + } else { + + // Get nonempty value(s) by temporarily forcing visibility + showHide( [ elem ], true ); + restoreDisplay = elem.style.display || restoreDisplay; + display = jQuery.css( elem, "display" ); + showHide( [ elem ] ); + } + } + + // Animate inline elements as inline-block + if ( display === "inline" || display === "inline-block" && restoreDisplay != null ) { + if ( jQuery.css( elem, "float" ) === "none" ) { + + // Restore the original display value at the end of pure show/hide animations + if ( !propTween ) { + anim.done( function() { + style.display = restoreDisplay; + } ); + if ( restoreDisplay == null ) { + display = style.display; + restoreDisplay = display === "none" ? "" : display; + } + } + style.display = "inline-block"; + } + } + } + + if ( opts.overflow ) { + style.overflow = "hidden"; + anim.always( function() { + style.overflow = opts.overflow[ 0 ]; + style.overflowX = opts.overflow[ 1 ]; + style.overflowY = opts.overflow[ 2 ]; + } ); + } + + // Implement show/hide animations + propTween = false; + for ( prop in orig ) { + + // General show/hide setup for this element animation + if ( !propTween ) { + if ( dataShow ) { + if ( "hidden" in dataShow ) { + hidden = dataShow.hidden; + } + } else { + dataShow = dataPriv.access( elem, "fxshow", { display: restoreDisplay } ); + } + + // Store hidden/visible for toggle so `.stop().toggle()` "reverses" + if ( toggle ) { + dataShow.hidden = !hidden; + } + + // Show elements before animating them + if ( hidden ) { + showHide( [ elem ], true ); + } + + /* eslint-disable no-loop-func */ + + anim.done( function() { + + /* eslint-enable no-loop-func */ + + // The final step of a "hide" animation is actually hiding the element + if ( !hidden ) { + showHide( [ elem ] ); + } + dataPriv.remove( elem, "fxshow" ); + for ( prop in orig ) { + jQuery.style( elem, prop, orig[ prop ] ); + } + } ); + } + + // Per-property setup + propTween = createTween( hidden ? dataShow[ prop ] : 0, prop, anim ); + if ( !( prop in dataShow ) ) { + dataShow[ prop ] = propTween.start; + if ( hidden ) { + propTween.end = propTween.start; + propTween.start = 0; + } + } + } +} + +function propFilter( props, specialEasing ) { + var index, name, easing, value, hooks; + + // camelCase, specialEasing and expand cssHook pass + for ( index in props ) { + name = camelCase( index ); + easing = specialEasing[ name ]; + value = props[ index ]; + if ( Array.isArray( value ) ) { + easing = value[ 1 ]; + value = props[ index ] = value[ 0 ]; + } + + if ( index !== name ) { + props[ name ] = value; + delete props[ index ]; + } + + hooks = jQuery.cssHooks[ name ]; + if ( hooks && "expand" in hooks ) { + value = hooks.expand( value ); + delete props[ name ]; + + // Not quite $.extend, this won't overwrite existing keys. + // Reusing 'index' because we have the correct "name" + for ( index in value ) { + if ( !( index in props ) ) { + props[ index ] = value[ index ]; + specialEasing[ index ] = easing; + } + } + } else { + specialEasing[ name ] = easing; + } + } +} + +function Animation( elem, properties, options ) { + var result, + stopped, + index = 0, + length = Animation.prefilters.length, + deferred = jQuery.Deferred().always( function() { + + // Don't match elem in the :animated selector + delete tick.elem; + } ), + tick = function() { + if ( stopped ) { + return false; + } + var currentTime = fxNow || createFxNow(), + remaining = Math.max( 0, animation.startTime + animation.duration - currentTime ), + + // Support: Android 2.3 only + // Archaic crash bug won't allow us to use `1 - ( 0.5 || 0 )` (#12497) + temp = remaining / animation.duration || 0, + percent = 1 - temp, + index = 0, + length = animation.tweens.length; + + for ( ; index < length; index++ ) { + animation.tweens[ index ].run( percent ); + } + + deferred.notifyWith( elem, [ animation, percent, remaining ] ); + + // If there's more to do, yield + if ( percent < 1 && length ) { + return remaining; + } + + // If this was an empty animation, synthesize a final progress notification + if ( !length ) { + deferred.notifyWith( elem, [ animation, 1, 0 ] ); + } + + // Resolve the animation and report its conclusion + deferred.resolveWith( elem, [ animation ] ); + return false; + }, + animation = deferred.promise( { + elem: elem, + props: jQuery.extend( {}, properties ), + opts: jQuery.extend( true, { + specialEasing: {}, + easing: jQuery.easing._default + }, options ), + originalProperties: properties, + originalOptions: options, + startTime: fxNow || createFxNow(), + duration: options.duration, + tweens: [], + createTween: function( prop, end ) { + var tween = jQuery.Tween( elem, animation.opts, prop, end, + animation.opts.specialEasing[ prop ] || animation.opts.easing ); + animation.tweens.push( tween ); + return tween; + }, + stop: function( gotoEnd ) { + var index = 0, + + // If we are going to the end, we want to run all the tweens + // otherwise we skip this part + length = gotoEnd ? animation.tweens.length : 0; + if ( stopped ) { + return this; + } + stopped = true; + for ( ; index < length; index++ ) { + animation.tweens[ index ].run( 1 ); + } + + // Resolve when we played the last frame; otherwise, reject + if ( gotoEnd ) { + deferred.notifyWith( elem, [ animation, 1, 0 ] ); + deferred.resolveWith( elem, [ animation, gotoEnd ] ); + } else { + deferred.rejectWith( elem, [ animation, gotoEnd ] ); + } + return this; + } + } ), + props = animation.props; + + propFilter( props, animation.opts.specialEasing ); + + for ( ; index < length; index++ ) { + result = Animation.prefilters[ index ].call( animation, elem, props, animation.opts ); + if ( result ) { + if ( isFunction( result.stop ) ) { + jQuery._queueHooks( animation.elem, animation.opts.queue ).stop = + result.stop.bind( result ); + } + return result; + } + } + + jQuery.map( props, createTween, animation ); + + if ( isFunction( animation.opts.start ) ) { + animation.opts.start.call( elem, animation ); + } + + // Attach callbacks from options + animation + .progress( animation.opts.progress ) + .done( animation.opts.done, animation.opts.complete ) + .fail( animation.opts.fail ) + .always( animation.opts.always ); + + jQuery.fx.timer( + jQuery.extend( tick, { + elem: elem, + anim: animation, + queue: animation.opts.queue + } ) + ); + + return animation; +} + +jQuery.Animation = jQuery.extend( Animation, { + + tweeners: { + "*": [ function( prop, value ) { + var tween = this.createTween( prop, value ); + adjustCSS( tween.elem, prop, rcssNum.exec( value ), tween ); + return tween; + } ] + }, + + tweener: function( props, callback ) { + if ( isFunction( props ) ) { + callback = props; + props = [ "*" ]; + } else { + props = props.match( rnothtmlwhite ); + } + + var prop, + index = 0, + length = props.length; + + for ( ; index < length; index++ ) { + prop = props[ index ]; + Animation.tweeners[ prop ] = Animation.tweeners[ prop ] || []; + Animation.tweeners[ prop ].unshift( callback ); + } + }, + + prefilters: [ defaultPrefilter ], + + prefilter: function( callback, prepend ) { + if ( prepend ) { + Animation.prefilters.unshift( callback ); + } else { + Animation.prefilters.push( callback ); + } + } +} ); + +jQuery.speed = function( speed, easing, fn ) { + var opt = speed && typeof speed === "object" ? jQuery.extend( {}, speed ) : { + complete: fn || !fn && easing || + isFunction( speed ) && speed, + duration: speed, + easing: fn && easing || easing && !isFunction( easing ) && easing + }; + + // Go to the end state if fx are off + if ( jQuery.fx.off ) { + opt.duration = 0; + + } else { + if ( typeof opt.duration !== "number" ) { + if ( opt.duration in jQuery.fx.speeds ) { + opt.duration = jQuery.fx.speeds[ opt.duration ]; + + } else { + opt.duration = jQuery.fx.speeds._default; + } + } + } + + // Normalize opt.queue - true/undefined/null -> "fx" + if ( opt.queue == null || opt.queue === true ) { + opt.queue = "fx"; + } + + // Queueing + opt.old = opt.complete; + + opt.complete = function() { + if ( isFunction( opt.old ) ) { + opt.old.call( this ); + } + + if ( opt.queue ) { + jQuery.dequeue( this, opt.queue ); + } + }; + + return opt; +}; + +jQuery.fn.extend( { + fadeTo: function( speed, to, easing, callback ) { + + // Show any hidden elements after setting opacity to 0 + return this.filter( isHiddenWithinTree ).css( "opacity", 0 ).show() + + // Animate to the value specified + .end().animate( { opacity: to }, speed, easing, callback ); + }, + animate: function( prop, speed, easing, callback ) { + var empty = jQuery.isEmptyObject( prop ), + optall = jQuery.speed( speed, easing, callback ), + doAnimation = function() { + + // Operate on a copy of prop so per-property easing won't be lost + var anim = Animation( this, jQuery.extend( {}, prop ), optall ); + + // Empty animations, or finishing resolves immediately + if ( empty || dataPriv.get( this, "finish" ) ) { + anim.stop( true ); + } + }; + + doAnimation.finish = doAnimation; + + return empty || optall.queue === false ? + this.each( doAnimation ) : + this.queue( optall.queue, doAnimation ); + }, + stop: function( type, clearQueue, gotoEnd ) { + var stopQueue = function( hooks ) { + var stop = hooks.stop; + delete hooks.stop; + stop( gotoEnd ); + }; + + if ( typeof type !== "string" ) { + gotoEnd = clearQueue; + clearQueue = type; + type = undefined; + } + if ( clearQueue ) { + this.queue( type || "fx", [] ); + } + + return this.each( function() { + var dequeue = true, + index = type != null && type + "queueHooks", + timers = jQuery.timers, + data = dataPriv.get( this ); + + if ( index ) { + if ( data[ index ] && data[ index ].stop ) { + stopQueue( data[ index ] ); + } + } else { + for ( index in data ) { + if ( data[ index ] && data[ index ].stop && rrun.test( index ) ) { + stopQueue( data[ index ] ); + } + } + } + + for ( index = timers.length; index--; ) { + if ( timers[ index ].elem === this && + ( type == null || timers[ index ].queue === type ) ) { + + timers[ index ].anim.stop( gotoEnd ); + dequeue = false; + timers.splice( index, 1 ); + } + } + + // Start the next in the queue if the last step wasn't forced. + // Timers currently will call their complete callbacks, which + // will dequeue but only if they were gotoEnd. + if ( dequeue || !gotoEnd ) { + jQuery.dequeue( this, type ); + } + } ); + }, + finish: function( type ) { + if ( type !== false ) { + type = type || "fx"; + } + return this.each( function() { + var index, + data = dataPriv.get( this ), + queue = data[ type + "queue" ], + hooks = data[ type + "queueHooks" ], + timers = jQuery.timers, + length = queue ? queue.length : 0; + + // Enable finishing flag on private data + data.finish = true; + + // Empty the queue first + jQuery.queue( this, type, [] ); + + if ( hooks && hooks.stop ) { + hooks.stop.call( this, true ); + } + + // Look for any active animations, and finish them + for ( index = timers.length; index--; ) { + if ( timers[ index ].elem === this && timers[ index ].queue === type ) { + timers[ index ].anim.stop( true ); + timers.splice( index, 1 ); + } + } + + // Look for any animations in the old queue and finish them + for ( index = 0; index < length; index++ ) { + if ( queue[ index ] && queue[ index ].finish ) { + queue[ index ].finish.call( this ); + } + } + + // Turn off finishing flag + delete data.finish; + } ); + } +} ); + +jQuery.each( [ "toggle", "show", "hide" ], function( _i, name ) { + var cssFn = jQuery.fn[ name ]; + jQuery.fn[ name ] = function( speed, easing, callback ) { + return speed == null || typeof speed === "boolean" ? + cssFn.apply( this, arguments ) : + this.animate( genFx( name, true ), speed, easing, callback ); + }; +} ); + +// Generate shortcuts for custom animations +jQuery.each( { + slideDown: genFx( "show" ), + slideUp: genFx( "hide" ), + slideToggle: genFx( "toggle" ), + fadeIn: { opacity: "show" }, + fadeOut: { opacity: "hide" }, + fadeToggle: { opacity: "toggle" } +}, function( name, props ) { + jQuery.fn[ name ] = function( speed, easing, callback ) { + return this.animate( props, speed, easing, callback ); + }; +} ); + +jQuery.timers = []; +jQuery.fx.tick = function() { + var timer, + i = 0, + timers = jQuery.timers; + + fxNow = Date.now(); + + for ( ; i < timers.length; i++ ) { + timer = timers[ i ]; + + // Run the timer and safely remove it when done (allowing for external removal) + if ( !timer() && timers[ i ] === timer ) { + timers.splice( i--, 1 ); + } + } + + if ( !timers.length ) { + jQuery.fx.stop(); + } + fxNow = undefined; +}; + +jQuery.fx.timer = function( timer ) { + jQuery.timers.push( timer ); + jQuery.fx.start(); +}; + +jQuery.fx.interval = 13; +jQuery.fx.start = function() { + if ( inProgress ) { + return; + } + + inProgress = true; + schedule(); +}; + +jQuery.fx.stop = function() { + inProgress = null; +}; + +jQuery.fx.speeds = { + slow: 600, + fast: 200, + + // Default speed + _default: 400 +}; + + +// Based off of the plugin by Clint Helfers, with permission. +// https://web.archive.org/web/20100324014747/http://blindsignals.com/index.php/2009/07/jquery-delay/ +jQuery.fn.delay = function( time, type ) { + time = jQuery.fx ? jQuery.fx.speeds[ time ] || time : time; + type = type || "fx"; + + return this.queue( type, function( next, hooks ) { + var timeout = window.setTimeout( next, time ); + hooks.stop = function() { + window.clearTimeout( timeout ); + }; + } ); +}; + + +( function() { + var input = document.createElement( "input" ), + select = document.createElement( "select" ), + opt = select.appendChild( document.createElement( "option" ) ); + + input.type = "checkbox"; + + // Support: Android <=4.3 only + // Default value for a checkbox should be "on" + support.checkOn = input.value !== ""; + + // Support: IE <=11 only + // Must access selectedIndex to make default options select + support.optSelected = opt.selected; + + // Support: IE <=11 only + // An input loses its value after becoming a radio + input = document.createElement( "input" ); + input.value = "t"; + input.type = "radio"; + support.radioValue = input.value === "t"; +} )(); + + +var boolHook, + attrHandle = jQuery.expr.attrHandle; + +jQuery.fn.extend( { + attr: function( name, value ) { + return access( this, jQuery.attr, name, value, arguments.length > 1 ); + }, + + removeAttr: function( name ) { + return this.each( function() { + jQuery.removeAttr( this, name ); + } ); + } +} ); + +jQuery.extend( { + attr: function( elem, name, value ) { + var ret, hooks, + nType = elem.nodeType; + + // Don't get/set attributes on text, comment and attribute nodes + if ( nType === 3 || nType === 8 || nType === 2 ) { + return; + } + + // Fallback to prop when attributes are not supported + if ( typeof elem.getAttribute === "undefined" ) { + return jQuery.prop( elem, name, value ); + } + + // Attribute hooks are determined by the lowercase version + // Grab necessary hook if one is defined + if ( nType !== 1 || !jQuery.isXMLDoc( elem ) ) { + hooks = jQuery.attrHooks[ name.toLowerCase() ] || + ( jQuery.expr.match.bool.test( name ) ? boolHook : undefined ); + } + + if ( value !== undefined ) { + if ( value === null ) { + jQuery.removeAttr( elem, name ); + return; + } + + if ( hooks && "set" in hooks && + ( ret = hooks.set( elem, value, name ) ) !== undefined ) { + return ret; + } + + elem.setAttribute( name, value + "" ); + return value; + } + + if ( hooks && "get" in hooks && ( ret = hooks.get( elem, name ) ) !== null ) { + return ret; + } + + ret = jQuery.find.attr( elem, name ); + + // Non-existent attributes return null, we normalize to undefined + return ret == null ? undefined : ret; + }, + + attrHooks: { + type: { + set: function( elem, value ) { + if ( !support.radioValue && value === "radio" && + nodeName( elem, "input" ) ) { + var val = elem.value; + elem.setAttribute( "type", value ); + if ( val ) { + elem.value = val; + } + return value; + } + } + } + }, + + removeAttr: function( elem, value ) { + var name, + i = 0, + + // Attribute names can contain non-HTML whitespace characters + // https://html.spec.whatwg.org/multipage/syntax.html#attributes-2 + attrNames = value && value.match( rnothtmlwhite ); + + if ( attrNames && elem.nodeType === 1 ) { + while ( ( name = attrNames[ i++ ] ) ) { + elem.removeAttribute( name ); + } + } + } +} ); + +// Hooks for boolean attributes +boolHook = { + set: function( elem, value, name ) { + if ( value === false ) { + + // Remove boolean attributes when set to false + jQuery.removeAttr( elem, name ); + } else { + elem.setAttribute( name, name ); + } + return name; + } +}; + +jQuery.each( jQuery.expr.match.bool.source.match( /\w+/g ), function( _i, name ) { + var getter = attrHandle[ name ] || jQuery.find.attr; + + attrHandle[ name ] = function( elem, name, isXML ) { + var ret, handle, + lowercaseName = name.toLowerCase(); + + if ( !isXML ) { + + // Avoid an infinite loop by temporarily removing this function from the getter + handle = attrHandle[ lowercaseName ]; + attrHandle[ lowercaseName ] = ret; + ret = getter( elem, name, isXML ) != null ? + lowercaseName : + null; + attrHandle[ lowercaseName ] = handle; + } + return ret; + }; +} ); + + + + +var rfocusable = /^(?:input|select|textarea|button)$/i, + rclickable = /^(?:a|area)$/i; + +jQuery.fn.extend( { + prop: function( name, value ) { + return access( this, jQuery.prop, name, value, arguments.length > 1 ); + }, + + removeProp: function( name ) { + return this.each( function() { + delete this[ jQuery.propFix[ name ] || name ]; + } ); + } +} ); + +jQuery.extend( { + prop: function( elem, name, value ) { + var ret, hooks, + nType = elem.nodeType; + + // Don't get/set properties on text, comment and attribute nodes + if ( nType === 3 || nType === 8 || nType === 2 ) { + return; + } + + if ( nType !== 1 || !jQuery.isXMLDoc( elem ) ) { + + // Fix name and attach hooks + name = jQuery.propFix[ name ] || name; + hooks = jQuery.propHooks[ name ]; + } + + if ( value !== undefined ) { + if ( hooks && "set" in hooks && + ( ret = hooks.set( elem, value, name ) ) !== undefined ) { + return ret; + } + + return ( elem[ name ] = value ); + } + + if ( hooks && "get" in hooks && ( ret = hooks.get( elem, name ) ) !== null ) { + return ret; + } + + return elem[ name ]; + }, + + propHooks: { + tabIndex: { + get: function( elem ) { + + // Support: IE <=9 - 11 only + // elem.tabIndex doesn't always return the + // correct value when it hasn't been explicitly set + // https://web.archive.org/web/20141116233347/http://fluidproject.org/blog/2008/01/09/getting-setting-and-removing-tabindex-values-with-javascript/ + // Use proper attribute retrieval(#12072) + var tabindex = jQuery.find.attr( elem, "tabindex" ); + + if ( tabindex ) { + return parseInt( tabindex, 10 ); + } + + if ( + rfocusable.test( elem.nodeName ) || + rclickable.test( elem.nodeName ) && + elem.href + ) { + return 0; + } + + return -1; + } + } + }, + + propFix: { + "for": "htmlFor", + "class": "className" + } +} ); + +// Support: IE <=11 only +// Accessing the selectedIndex property +// forces the browser to respect setting selected +// on the option +// The getter ensures a default option is selected +// when in an optgroup +// eslint rule "no-unused-expressions" is disabled for this code +// since it considers such accessions noop +if ( !support.optSelected ) { + jQuery.propHooks.selected = { + get: function( elem ) { + + /* eslint no-unused-expressions: "off" */ + + var parent = elem.parentNode; + if ( parent && parent.parentNode ) { + parent.parentNode.selectedIndex; + } + return null; + }, + set: function( elem ) { + + /* eslint no-unused-expressions: "off" */ + + var parent = elem.parentNode; + if ( parent ) { + parent.selectedIndex; + + if ( parent.parentNode ) { + parent.parentNode.selectedIndex; + } + } + } + }; +} + +jQuery.each( [ + "tabIndex", + "readOnly", + "maxLength", + "cellSpacing", + "cellPadding", + "rowSpan", + "colSpan", + "useMap", + "frameBorder", + "contentEditable" +], function() { + jQuery.propFix[ this.toLowerCase() ] = this; +} ); + + + + + // Strip and collapse whitespace according to HTML spec + // https://infra.spec.whatwg.org/#strip-and-collapse-ascii-whitespace + function stripAndCollapse( value ) { + var tokens = value.match( rnothtmlwhite ) || []; + return tokens.join( " " ); + } + + +function getClass( elem ) { + return elem.getAttribute && elem.getAttribute( "class" ) || ""; +} + +function classesToArray( value ) { + if ( Array.isArray( value ) ) { + return value; + } + if ( typeof value === "string" ) { + return value.match( rnothtmlwhite ) || []; + } + return []; +} + +jQuery.fn.extend( { + addClass: function( value ) { + var classes, elem, cur, curValue, clazz, j, finalValue, + i = 0; + + if ( isFunction( value ) ) { + return this.each( function( j ) { + jQuery( this ).addClass( value.call( this, j, getClass( this ) ) ); + } ); + } + + classes = classesToArray( value ); + + if ( classes.length ) { + while ( ( elem = this[ i++ ] ) ) { + curValue = getClass( elem ); + cur = elem.nodeType === 1 && ( " " + stripAndCollapse( curValue ) + " " ); + + if ( cur ) { + j = 0; + while ( ( clazz = classes[ j++ ] ) ) { + if ( cur.indexOf( " " + clazz + " " ) < 0 ) { + cur += clazz + " "; + } + } + + // Only assign if different to avoid unneeded rendering. + finalValue = stripAndCollapse( cur ); + if ( curValue !== finalValue ) { + elem.setAttribute( "class", finalValue ); + } + } + } + } + + return this; + }, + + removeClass: function( value ) { + var classes, elem, cur, curValue, clazz, j, finalValue, + i = 0; + + if ( isFunction( value ) ) { + return this.each( function( j ) { + jQuery( this ).removeClass( value.call( this, j, getClass( this ) ) ); + } ); + } + + if ( !arguments.length ) { + return this.attr( "class", "" ); + } + + classes = classesToArray( value ); + + if ( classes.length ) { + while ( ( elem = this[ i++ ] ) ) { + curValue = getClass( elem ); + + // This expression is here for better compressibility (see addClass) + cur = elem.nodeType === 1 && ( " " + stripAndCollapse( curValue ) + " " ); + + if ( cur ) { + j = 0; + while ( ( clazz = classes[ j++ ] ) ) { + + // Remove *all* instances + while ( cur.indexOf( " " + clazz + " " ) > -1 ) { + cur = cur.replace( " " + clazz + " ", " " ); + } + } + + // Only assign if different to avoid unneeded rendering. + finalValue = stripAndCollapse( cur ); + if ( curValue !== finalValue ) { + elem.setAttribute( "class", finalValue ); + } + } + } + } + + return this; + }, + + toggleClass: function( value, stateVal ) { + var type = typeof value, + isValidValue = type === "string" || Array.isArray( value ); + + if ( typeof stateVal === "boolean" && isValidValue ) { + return stateVal ? this.addClass( value ) : this.removeClass( value ); + } + + if ( isFunction( value ) ) { + return this.each( function( i ) { + jQuery( this ).toggleClass( + value.call( this, i, getClass( this ), stateVal ), + stateVal + ); + } ); + } + + return this.each( function() { + var className, i, self, classNames; + + if ( isValidValue ) { + + // Toggle individual class names + i = 0; + self = jQuery( this ); + classNames = classesToArray( value ); + + while ( ( className = classNames[ i++ ] ) ) { + + // Check each className given, space separated list + if ( self.hasClass( className ) ) { + self.removeClass( className ); + } else { + self.addClass( className ); + } + } + + // Toggle whole class name + } else if ( value === undefined || type === "boolean" ) { + className = getClass( this ); + if ( className ) { + + // Store className if set + dataPriv.set( this, "__className__", className ); + } + + // If the element has a class name or if we're passed `false`, + // then remove the whole classname (if there was one, the above saved it). + // Otherwise bring back whatever was previously saved (if anything), + // falling back to the empty string if nothing was stored. + if ( this.setAttribute ) { + this.setAttribute( "class", + className || value === false ? + "" : + dataPriv.get( this, "__className__" ) || "" + ); + } + } + } ); + }, + + hasClass: function( selector ) { + var className, elem, + i = 0; + + className = " " + selector + " "; + while ( ( elem = this[ i++ ] ) ) { + if ( elem.nodeType === 1 && + ( " " + stripAndCollapse( getClass( elem ) ) + " " ).indexOf( className ) > -1 ) { + return true; + } + } + + return false; + } +} ); + + + + +var rreturn = /\r/g; + +jQuery.fn.extend( { + val: function( value ) { + var hooks, ret, valueIsFunction, + elem = this[ 0 ]; + + if ( !arguments.length ) { + if ( elem ) { + hooks = jQuery.valHooks[ elem.type ] || + jQuery.valHooks[ elem.nodeName.toLowerCase() ]; + + if ( hooks && + "get" in hooks && + ( ret = hooks.get( elem, "value" ) ) !== undefined + ) { + return ret; + } + + ret = elem.value; + + // Handle most common string cases + if ( typeof ret === "string" ) { + return ret.replace( rreturn, "" ); + } + + // Handle cases where value is null/undef or number + return ret == null ? "" : ret; + } + + return; + } + + valueIsFunction = isFunction( value ); + + return this.each( function( i ) { + var val; + + if ( this.nodeType !== 1 ) { + return; + } + + if ( valueIsFunction ) { + val = value.call( this, i, jQuery( this ).val() ); + } else { + val = value; + } + + // Treat null/undefined as ""; convert numbers to string + if ( val == null ) { + val = ""; + + } else if ( typeof val === "number" ) { + val += ""; + + } else if ( Array.isArray( val ) ) { + val = jQuery.map( val, function( value ) { + return value == null ? "" : value + ""; + } ); + } + + hooks = jQuery.valHooks[ this.type ] || jQuery.valHooks[ this.nodeName.toLowerCase() ]; + + // If set returns undefined, fall back to normal setting + if ( !hooks || !( "set" in hooks ) || hooks.set( this, val, "value" ) === undefined ) { + this.value = val; + } + } ); + } +} ); + +jQuery.extend( { + valHooks: { + option: { + get: function( elem ) { + + var val = jQuery.find.attr( elem, "value" ); + return val != null ? + val : + + // Support: IE <=10 - 11 only + // option.text throws exceptions (#14686, #14858) + // Strip and collapse whitespace + // https://html.spec.whatwg.org/#strip-and-collapse-whitespace + stripAndCollapse( jQuery.text( elem ) ); + } + }, + select: { + get: function( elem ) { + var value, option, i, + options = elem.options, + index = elem.selectedIndex, + one = elem.type === "select-one", + values = one ? null : [], + max = one ? index + 1 : options.length; + + if ( index < 0 ) { + i = max; + + } else { + i = one ? index : 0; + } + + // Loop through all the selected options + for ( ; i < max; i++ ) { + option = options[ i ]; + + // Support: IE <=9 only + // IE8-9 doesn't update selected after form reset (#2551) + if ( ( option.selected || i === index ) && + + // Don't return options that are disabled or in a disabled optgroup + !option.disabled && + ( !option.parentNode.disabled || + !nodeName( option.parentNode, "optgroup" ) ) ) { + + // Get the specific value for the option + value = jQuery( option ).val(); + + // We don't need an array for one selects + if ( one ) { + return value; + } + + // Multi-Selects return an array + values.push( value ); + } + } + + return values; + }, + + set: function( elem, value ) { + var optionSet, option, + options = elem.options, + values = jQuery.makeArray( value ), + i = options.length; + + while ( i-- ) { + option = options[ i ]; + + /* eslint-disable no-cond-assign */ + + if ( option.selected = + jQuery.inArray( jQuery.valHooks.option.get( option ), values ) > -1 + ) { + optionSet = true; + } + + /* eslint-enable no-cond-assign */ + } + + // Force browsers to behave consistently when non-matching value is set + if ( !optionSet ) { + elem.selectedIndex = -1; + } + return values; + } + } + } +} ); + +// Radios and checkboxes getter/setter +jQuery.each( [ "radio", "checkbox" ], function() { + jQuery.valHooks[ this ] = { + set: function( elem, value ) { + if ( Array.isArray( value ) ) { + return ( elem.checked = jQuery.inArray( jQuery( elem ).val(), value ) > -1 ); + } + } + }; + if ( !support.checkOn ) { + jQuery.valHooks[ this ].get = function( elem ) { + return elem.getAttribute( "value" ) === null ? "on" : elem.value; + }; + } +} ); + + + + +// Return jQuery for attributes-only inclusion + + +support.focusin = "onfocusin" in window; + + +var rfocusMorph = /^(?:focusinfocus|focusoutblur)$/, + stopPropagationCallback = function( e ) { + e.stopPropagation(); + }; + +jQuery.extend( jQuery.event, { + + trigger: function( event, data, elem, onlyHandlers ) { + + var i, cur, tmp, bubbleType, ontype, handle, special, lastElement, + eventPath = [ elem || document ], + type = hasOwn.call( event, "type" ) ? event.type : event, + namespaces = hasOwn.call( event, "namespace" ) ? event.namespace.split( "." ) : []; + + cur = lastElement = tmp = elem = elem || document; + + // Don't do events on text and comment nodes + if ( elem.nodeType === 3 || elem.nodeType === 8 ) { + return; + } + + // focus/blur morphs to focusin/out; ensure we're not firing them right now + if ( rfocusMorph.test( type + jQuery.event.triggered ) ) { + return; + } + + if ( type.indexOf( "." ) > -1 ) { + + // Namespaced trigger; create a regexp to match event type in handle() + namespaces = type.split( "." ); + type = namespaces.shift(); + namespaces.sort(); + } + ontype = type.indexOf( ":" ) < 0 && "on" + type; + + // Caller can pass in a jQuery.Event object, Object, or just an event type string + event = event[ jQuery.expando ] ? + event : + new jQuery.Event( type, typeof event === "object" && event ); + + // Trigger bitmask: & 1 for native handlers; & 2 for jQuery (always true) + event.isTrigger = onlyHandlers ? 2 : 3; + event.namespace = namespaces.join( "." ); + event.rnamespace = event.namespace ? + new RegExp( "(^|\\.)" + namespaces.join( "\\.(?:.*\\.|)" ) + "(\\.|$)" ) : + null; + + // Clean up the event in case it is being reused + event.result = undefined; + if ( !event.target ) { + event.target = elem; + } + + // Clone any incoming data and prepend the event, creating the handler arg list + data = data == null ? + [ event ] : + jQuery.makeArray( data, [ event ] ); + + // Allow special events to draw outside the lines + special = jQuery.event.special[ type ] || {}; + if ( !onlyHandlers && special.trigger && special.trigger.apply( elem, data ) === false ) { + return; + } + + // Determine event propagation path in advance, per W3C events spec (#9951) + // Bubble up to document, then to window; watch for a global ownerDocument var (#9724) + if ( !onlyHandlers && !special.noBubble && !isWindow( elem ) ) { + + bubbleType = special.delegateType || type; + if ( !rfocusMorph.test( bubbleType + type ) ) { + cur = cur.parentNode; + } + for ( ; cur; cur = cur.parentNode ) { + eventPath.push( cur ); + tmp = cur; + } + + // Only add window if we got to document (e.g., not plain obj or detached DOM) + if ( tmp === ( elem.ownerDocument || document ) ) { + eventPath.push( tmp.defaultView || tmp.parentWindow || window ); + } + } + + // Fire handlers on the event path + i = 0; + while ( ( cur = eventPath[ i++ ] ) && !event.isPropagationStopped() ) { + lastElement = cur; + event.type = i > 1 ? + bubbleType : + special.bindType || type; + + // jQuery handler + handle = ( dataPriv.get( cur, "events" ) || Object.create( null ) )[ event.type ] && + dataPriv.get( cur, "handle" ); + if ( handle ) { + handle.apply( cur, data ); + } + + // Native handler + handle = ontype && cur[ ontype ]; + if ( handle && handle.apply && acceptData( cur ) ) { + event.result = handle.apply( cur, data ); + if ( event.result === false ) { + event.preventDefault(); + } + } + } + event.type = type; + + // If nobody prevented the default action, do it now + if ( !onlyHandlers && !event.isDefaultPrevented() ) { + + if ( ( !special._default || + special._default.apply( eventPath.pop(), data ) === false ) && + acceptData( elem ) ) { + + // Call a native DOM method on the target with the same name as the event. + // Don't do default actions on window, that's where global variables be (#6170) + if ( ontype && isFunction( elem[ type ] ) && !isWindow( elem ) ) { + + // Don't re-trigger an onFOO event when we call its FOO() method + tmp = elem[ ontype ]; + + if ( tmp ) { + elem[ ontype ] = null; + } + + // Prevent re-triggering of the same event, since we already bubbled it above + jQuery.event.triggered = type; + + if ( event.isPropagationStopped() ) { + lastElement.addEventListener( type, stopPropagationCallback ); + } + + elem[ type ](); + + if ( event.isPropagationStopped() ) { + lastElement.removeEventListener( type, stopPropagationCallback ); + } + + jQuery.event.triggered = undefined; + + if ( tmp ) { + elem[ ontype ] = tmp; + } + } + } + } + + return event.result; + }, + + // Piggyback on a donor event to simulate a different one + // Used only for `focus(in | out)` events + simulate: function( type, elem, event ) { + var e = jQuery.extend( + new jQuery.Event(), + event, + { + type: type, + isSimulated: true + } + ); + + jQuery.event.trigger( e, null, elem ); + } + +} ); + +jQuery.fn.extend( { + + trigger: function( type, data ) { + return this.each( function() { + jQuery.event.trigger( type, data, this ); + } ); + }, + triggerHandler: function( type, data ) { + var elem = this[ 0 ]; + if ( elem ) { + return jQuery.event.trigger( type, data, elem, true ); + } + } +} ); + + +// Support: Firefox <=44 +// Firefox doesn't have focus(in | out) events +// Related ticket - https://bugzilla.mozilla.org/show_bug.cgi?id=687787 +// +// Support: Chrome <=48 - 49, Safari <=9.0 - 9.1 +// focus(in | out) events fire after focus & blur events, +// which is spec violation - http://www.w3.org/TR/DOM-Level-3-Events/#events-focusevent-event-order +// Related ticket - https://bugs.chromium.org/p/chromium/issues/detail?id=449857 +if ( !support.focusin ) { + jQuery.each( { focus: "focusin", blur: "focusout" }, function( orig, fix ) { + + // Attach a single capturing handler on the document while someone wants focusin/focusout + var handler = function( event ) { + jQuery.event.simulate( fix, event.target, jQuery.event.fix( event ) ); + }; + + jQuery.event.special[ fix ] = { + setup: function() { + + // Handle: regular nodes (via `this.ownerDocument`), window + // (via `this.document`) & document (via `this`). + var doc = this.ownerDocument || this.document || this, + attaches = dataPriv.access( doc, fix ); + + if ( !attaches ) { + doc.addEventListener( orig, handler, true ); + } + dataPriv.access( doc, fix, ( attaches || 0 ) + 1 ); + }, + teardown: function() { + var doc = this.ownerDocument || this.document || this, + attaches = dataPriv.access( doc, fix ) - 1; + + if ( !attaches ) { + doc.removeEventListener( orig, handler, true ); + dataPriv.remove( doc, fix ); + + } else { + dataPriv.access( doc, fix, attaches ); + } + } + }; + } ); +} +var location = window.location; + +var nonce = { guid: Date.now() }; + +var rquery = ( /\?/ ); + + + +// Cross-browser xml parsing +jQuery.parseXML = function( data ) { + var xml, parserErrorElem; + if ( !data || typeof data !== "string" ) { + return null; + } + + // Support: IE 9 - 11 only + // IE throws on parseFromString with invalid input. + try { + xml = ( new window.DOMParser() ).parseFromString( data, "text/xml" ); + } catch ( e ) {} + + parserErrorElem = xml && xml.getElementsByTagName( "parsererror" )[ 0 ]; + if ( !xml || parserErrorElem ) { + jQuery.error( "Invalid XML: " + ( + parserErrorElem ? + jQuery.map( parserErrorElem.childNodes, function( el ) { + return el.textContent; + } ).join( "\n" ) : + data + ) ); + } + return xml; +}; + + +var + rbracket = /\[\]$/, + rCRLF = /\r?\n/g, + rsubmitterTypes = /^(?:submit|button|image|reset|file)$/i, + rsubmittable = /^(?:input|select|textarea|keygen)/i; + +function buildParams( prefix, obj, traditional, add ) { + var name; + + if ( Array.isArray( obj ) ) { + + // Serialize array item. + jQuery.each( obj, function( i, v ) { + if ( traditional || rbracket.test( prefix ) ) { + + // Treat each array item as a scalar. + add( prefix, v ); + + } else { + + // Item is non-scalar (array or object), encode its numeric index. + buildParams( + prefix + "[" + ( typeof v === "object" && v != null ? i : "" ) + "]", + v, + traditional, + add + ); + } + } ); + + } else if ( !traditional && toType( obj ) === "object" ) { + + // Serialize object item. + for ( name in obj ) { + buildParams( prefix + "[" + name + "]", obj[ name ], traditional, add ); + } + + } else { + + // Serialize scalar item. + add( prefix, obj ); + } +} + +// Serialize an array of form elements or a set of +// key/values into a query string +jQuery.param = function( a, traditional ) { + var prefix, + s = [], + add = function( key, valueOrFunction ) { + + // If value is a function, invoke it and use its return value + var value = isFunction( valueOrFunction ) ? + valueOrFunction() : + valueOrFunction; + + s[ s.length ] = encodeURIComponent( key ) + "=" + + encodeURIComponent( value == null ? "" : value ); + }; + + if ( a == null ) { + return ""; + } + + // If an array was passed in, assume that it is an array of form elements. + if ( Array.isArray( a ) || ( a.jquery && !jQuery.isPlainObject( a ) ) ) { + + // Serialize the form elements + jQuery.each( a, function() { + add( this.name, this.value ); + } ); + + } else { + + // If traditional, encode the "old" way (the way 1.3.2 or older + // did it), otherwise encode params recursively. + for ( prefix in a ) { + buildParams( prefix, a[ prefix ], traditional, add ); + } + } + + // Return the resulting serialization + return s.join( "&" ); +}; + +jQuery.fn.extend( { + serialize: function() { + return jQuery.param( this.serializeArray() ); + }, + serializeArray: function() { + return this.map( function() { + + // Can add propHook for "elements" to filter or add form elements + var elements = jQuery.prop( this, "elements" ); + return elements ? jQuery.makeArray( elements ) : this; + } ).filter( function() { + var type = this.type; + + // Use .is( ":disabled" ) so that fieldset[disabled] works + return this.name && !jQuery( this ).is( ":disabled" ) && + rsubmittable.test( this.nodeName ) && !rsubmitterTypes.test( type ) && + ( this.checked || !rcheckableType.test( type ) ); + } ).map( function( _i, elem ) { + var val = jQuery( this ).val(); + + if ( val == null ) { + return null; + } + + if ( Array.isArray( val ) ) { + return jQuery.map( val, function( val ) { + return { name: elem.name, value: val.replace( rCRLF, "\r\n" ) }; + } ); + } + + return { name: elem.name, value: val.replace( rCRLF, "\r\n" ) }; + } ).get(); + } +} ); + + +var + r20 = /%20/g, + rhash = /#.*$/, + rantiCache = /([?&])_=[^&]*/, + rheaders = /^(.*?):[ \t]*([^\r\n]*)$/mg, + + // #7653, #8125, #8152: local protocol detection + rlocalProtocol = /^(?:about|app|app-storage|.+-extension|file|res|widget):$/, + rnoContent = /^(?:GET|HEAD)$/, + rprotocol = /^\/\//, + + /* Prefilters + * 1) They are useful to introduce custom dataTypes (see ajax/jsonp.js for an example) + * 2) These are called: + * - BEFORE asking for a transport + * - AFTER param serialization (s.data is a string if s.processData is true) + * 3) key is the dataType + * 4) the catchall symbol "*" can be used + * 5) execution will start with transport dataType and THEN continue down to "*" if needed + */ + prefilters = {}, + + /* Transports bindings + * 1) key is the dataType + * 2) the catchall symbol "*" can be used + * 3) selection will start with transport dataType and THEN go to "*" if needed + */ + transports = {}, + + // Avoid comment-prolog char sequence (#10098); must appease lint and evade compression + allTypes = "*/".concat( "*" ), + + // Anchor tag for parsing the document origin + originAnchor = document.createElement( "a" ); + +originAnchor.href = location.href; + +// Base "constructor" for jQuery.ajaxPrefilter and jQuery.ajaxTransport +function addToPrefiltersOrTransports( structure ) { + + // dataTypeExpression is optional and defaults to "*" + return function( dataTypeExpression, func ) { + + if ( typeof dataTypeExpression !== "string" ) { + func = dataTypeExpression; + dataTypeExpression = "*"; + } + + var dataType, + i = 0, + dataTypes = dataTypeExpression.toLowerCase().match( rnothtmlwhite ) || []; + + if ( isFunction( func ) ) { + + // For each dataType in the dataTypeExpression + while ( ( dataType = dataTypes[ i++ ] ) ) { + + // Prepend if requested + if ( dataType[ 0 ] === "+" ) { + dataType = dataType.slice( 1 ) || "*"; + ( structure[ dataType ] = structure[ dataType ] || [] ).unshift( func ); + + // Otherwise append + } else { + ( structure[ dataType ] = structure[ dataType ] || [] ).push( func ); + } + } + } + }; +} + +// Base inspection function for prefilters and transports +function inspectPrefiltersOrTransports( structure, options, originalOptions, jqXHR ) { + + var inspected = {}, + seekingTransport = ( structure === transports ); + + function inspect( dataType ) { + var selected; + inspected[ dataType ] = true; + jQuery.each( structure[ dataType ] || [], function( _, prefilterOrFactory ) { + var dataTypeOrTransport = prefilterOrFactory( options, originalOptions, jqXHR ); + if ( typeof dataTypeOrTransport === "string" && + !seekingTransport && !inspected[ dataTypeOrTransport ] ) { + + options.dataTypes.unshift( dataTypeOrTransport ); + inspect( dataTypeOrTransport ); + return false; + } else if ( seekingTransport ) { + return !( selected = dataTypeOrTransport ); + } + } ); + return selected; + } + + return inspect( options.dataTypes[ 0 ] ) || !inspected[ "*" ] && inspect( "*" ); +} + +// A special extend for ajax options +// that takes "flat" options (not to be deep extended) +// Fixes #9887 +function ajaxExtend( target, src ) { + var key, deep, + flatOptions = jQuery.ajaxSettings.flatOptions || {}; + + for ( key in src ) { + if ( src[ key ] !== undefined ) { + ( flatOptions[ key ] ? target : ( deep || ( deep = {} ) ) )[ key ] = src[ key ]; + } + } + if ( deep ) { + jQuery.extend( true, target, deep ); + } + + return target; +} + +/* Handles responses to an ajax request: + * - finds the right dataType (mediates between content-type and expected dataType) + * - returns the corresponding response + */ +function ajaxHandleResponses( s, jqXHR, responses ) { + + var ct, type, finalDataType, firstDataType, + contents = s.contents, + dataTypes = s.dataTypes; + + // Remove auto dataType and get content-type in the process + while ( dataTypes[ 0 ] === "*" ) { + dataTypes.shift(); + if ( ct === undefined ) { + ct = s.mimeType || jqXHR.getResponseHeader( "Content-Type" ); + } + } + + // Check if we're dealing with a known content-type + if ( ct ) { + for ( type in contents ) { + if ( contents[ type ] && contents[ type ].test( ct ) ) { + dataTypes.unshift( type ); + break; + } + } + } + + // Check to see if we have a response for the expected dataType + if ( dataTypes[ 0 ] in responses ) { + finalDataType = dataTypes[ 0 ]; + } else { + + // Try convertible dataTypes + for ( type in responses ) { + if ( !dataTypes[ 0 ] || s.converters[ type + " " + dataTypes[ 0 ] ] ) { + finalDataType = type; + break; + } + if ( !firstDataType ) { + firstDataType = type; + } + } + + // Or just use first one + finalDataType = finalDataType || firstDataType; + } + + // If we found a dataType + // We add the dataType to the list if needed + // and return the corresponding response + if ( finalDataType ) { + if ( finalDataType !== dataTypes[ 0 ] ) { + dataTypes.unshift( finalDataType ); + } + return responses[ finalDataType ]; + } +} + +/* Chain conversions given the request and the original response + * Also sets the responseXXX fields on the jqXHR instance + */ +function ajaxConvert( s, response, jqXHR, isSuccess ) { + var conv2, current, conv, tmp, prev, + converters = {}, + + // Work with a copy of dataTypes in case we need to modify it for conversion + dataTypes = s.dataTypes.slice(); + + // Create converters map with lowercased keys + if ( dataTypes[ 1 ] ) { + for ( conv in s.converters ) { + converters[ conv.toLowerCase() ] = s.converters[ conv ]; + } + } + + current = dataTypes.shift(); + + // Convert to each sequential dataType + while ( current ) { + + if ( s.responseFields[ current ] ) { + jqXHR[ s.responseFields[ current ] ] = response; + } + + // Apply the dataFilter if provided + if ( !prev && isSuccess && s.dataFilter ) { + response = s.dataFilter( response, s.dataType ); + } + + prev = current; + current = dataTypes.shift(); + + if ( current ) { + + // There's only work to do if current dataType is non-auto + if ( current === "*" ) { + + current = prev; + + // Convert response if prev dataType is non-auto and differs from current + } else if ( prev !== "*" && prev !== current ) { + + // Seek a direct converter + conv = converters[ prev + " " + current ] || converters[ "* " + current ]; + + // If none found, seek a pair + if ( !conv ) { + for ( conv2 in converters ) { + + // If conv2 outputs current + tmp = conv2.split( " " ); + if ( tmp[ 1 ] === current ) { + + // If prev can be converted to accepted input + conv = converters[ prev + " " + tmp[ 0 ] ] || + converters[ "* " + tmp[ 0 ] ]; + if ( conv ) { + + // Condense equivalence converters + if ( conv === true ) { + conv = converters[ conv2 ]; + + // Otherwise, insert the intermediate dataType + } else if ( converters[ conv2 ] !== true ) { + current = tmp[ 0 ]; + dataTypes.unshift( tmp[ 1 ] ); + } + break; + } + } + } + } + + // Apply converter (if not an equivalence) + if ( conv !== true ) { + + // Unless errors are allowed to bubble, catch and return them + if ( conv && s.throws ) { + response = conv( response ); + } else { + try { + response = conv( response ); + } catch ( e ) { + return { + state: "parsererror", + error: conv ? e : "No conversion from " + prev + " to " + current + }; + } + } + } + } + } + } + + return { state: "success", data: response }; +} + +jQuery.extend( { + + // Counter for holding the number of active queries + active: 0, + + // Last-Modified header cache for next request + lastModified: {}, + etag: {}, + + ajaxSettings: { + url: location.href, + type: "GET", + isLocal: rlocalProtocol.test( location.protocol ), + global: true, + processData: true, + async: true, + contentType: "application/x-www-form-urlencoded; charset=UTF-8", + + /* + timeout: 0, + data: null, + dataType: null, + username: null, + password: null, + cache: null, + throws: false, + traditional: false, + headers: {}, + */ + + accepts: { + "*": allTypes, + text: "text/plain", + html: "text/html", + xml: "application/xml, text/xml", + json: "application/json, text/javascript" + }, + + contents: { + xml: /\bxml\b/, + html: /\bhtml/, + json: /\bjson\b/ + }, + + responseFields: { + xml: "responseXML", + text: "responseText", + json: "responseJSON" + }, + + // Data converters + // Keys separate source (or catchall "*") and destination types with a single space + converters: { + + // Convert anything to text + "* text": String, + + // Text to html (true = no transformation) + "text html": true, + + // Evaluate text as a json expression + "text json": JSON.parse, + + // Parse text as xml + "text xml": jQuery.parseXML + }, + + // For options that shouldn't be deep extended: + // you can add your own custom options here if + // and when you create one that shouldn't be + // deep extended (see ajaxExtend) + flatOptions: { + url: true, + context: true + } + }, + + // Creates a full fledged settings object into target + // with both ajaxSettings and settings fields. + // If target is omitted, writes into ajaxSettings. + ajaxSetup: function( target, settings ) { + return settings ? + + // Building a settings object + ajaxExtend( ajaxExtend( target, jQuery.ajaxSettings ), settings ) : + + // Extending ajaxSettings + ajaxExtend( jQuery.ajaxSettings, target ); + }, + + ajaxPrefilter: addToPrefiltersOrTransports( prefilters ), + ajaxTransport: addToPrefiltersOrTransports( transports ), + + // Main method + ajax: function( url, options ) { + + // If url is an object, simulate pre-1.5 signature + if ( typeof url === "object" ) { + options = url; + url = undefined; + } + + // Force options to be an object + options = options || {}; + + var transport, + + // URL without anti-cache param + cacheURL, + + // Response headers + responseHeadersString, + responseHeaders, + + // timeout handle + timeoutTimer, + + // Url cleanup var + urlAnchor, + + // Request state (becomes false upon send and true upon completion) + completed, + + // To know if global events are to be dispatched + fireGlobals, + + // Loop variable + i, + + // uncached part of the url + uncached, + + // Create the final options object + s = jQuery.ajaxSetup( {}, options ), + + // Callbacks context + callbackContext = s.context || s, + + // Context for global events is callbackContext if it is a DOM node or jQuery collection + globalEventContext = s.context && + ( callbackContext.nodeType || callbackContext.jquery ) ? + jQuery( callbackContext ) : + jQuery.event, + + // Deferreds + deferred = jQuery.Deferred(), + completeDeferred = jQuery.Callbacks( "once memory" ), + + // Status-dependent callbacks + statusCode = s.statusCode || {}, + + // Headers (they are sent all at once) + requestHeaders = {}, + requestHeadersNames = {}, + + // Default abort message + strAbort = "canceled", + + // Fake xhr + jqXHR = { + readyState: 0, + + // Builds headers hashtable if needed + getResponseHeader: function( key ) { + var match; + if ( completed ) { + if ( !responseHeaders ) { + responseHeaders = {}; + while ( ( match = rheaders.exec( responseHeadersString ) ) ) { + responseHeaders[ match[ 1 ].toLowerCase() + " " ] = + ( responseHeaders[ match[ 1 ].toLowerCase() + " " ] || [] ) + .concat( match[ 2 ] ); + } + } + match = responseHeaders[ key.toLowerCase() + " " ]; + } + return match == null ? null : match.join( ", " ); + }, + + // Raw string + getAllResponseHeaders: function() { + return completed ? responseHeadersString : null; + }, + + // Caches the header + setRequestHeader: function( name, value ) { + if ( completed == null ) { + name = requestHeadersNames[ name.toLowerCase() ] = + requestHeadersNames[ name.toLowerCase() ] || name; + requestHeaders[ name ] = value; + } + return this; + }, + + // Overrides response content-type header + overrideMimeType: function( type ) { + if ( completed == null ) { + s.mimeType = type; + } + return this; + }, + + // Status-dependent callbacks + statusCode: function( map ) { + var code; + if ( map ) { + if ( completed ) { + + // Execute the appropriate callbacks + jqXHR.always( map[ jqXHR.status ] ); + } else { + + // Lazy-add the new callbacks in a way that preserves old ones + for ( code in map ) { + statusCode[ code ] = [ statusCode[ code ], map[ code ] ]; + } + } + } + return this; + }, + + // Cancel the request + abort: function( statusText ) { + var finalText = statusText || strAbort; + if ( transport ) { + transport.abort( finalText ); + } + done( 0, finalText ); + return this; + } + }; + + // Attach deferreds + deferred.promise( jqXHR ); + + // Add protocol if not provided (prefilters might expect it) + // Handle falsy url in the settings object (#10093: consistency with old signature) + // We also use the url parameter if available + s.url = ( ( url || s.url || location.href ) + "" ) + .replace( rprotocol, location.protocol + "//" ); + + // Alias method option to type as per ticket #12004 + s.type = options.method || options.type || s.method || s.type; + + // Extract dataTypes list + s.dataTypes = ( s.dataType || "*" ).toLowerCase().match( rnothtmlwhite ) || [ "" ]; + + // A cross-domain request is in order when the origin doesn't match the current origin. + if ( s.crossDomain == null ) { + urlAnchor = document.createElement( "a" ); + + // Support: IE <=8 - 11, Edge 12 - 15 + // IE throws exception on accessing the href property if url is malformed, + // e.g. http://example.com:80x/ + try { + urlAnchor.href = s.url; + + // Support: IE <=8 - 11 only + // Anchor's host property isn't correctly set when s.url is relative + urlAnchor.href = urlAnchor.href; + s.crossDomain = originAnchor.protocol + "//" + originAnchor.host !== + urlAnchor.protocol + "//" + urlAnchor.host; + } catch ( e ) { + + // If there is an error parsing the URL, assume it is crossDomain, + // it can be rejected by the transport if it is invalid + s.crossDomain = true; + } + } + + // Convert data if not already a string + if ( s.data && s.processData && typeof s.data !== "string" ) { + s.data = jQuery.param( s.data, s.traditional ); + } + + // Apply prefilters + inspectPrefiltersOrTransports( prefilters, s, options, jqXHR ); + + // If request was aborted inside a prefilter, stop there + if ( completed ) { + return jqXHR; + } + + // We can fire global events as of now if asked to + // Don't fire events if jQuery.event is undefined in an AMD-usage scenario (#15118) + fireGlobals = jQuery.event && s.global; + + // Watch for a new set of requests + if ( fireGlobals && jQuery.active++ === 0 ) { + jQuery.event.trigger( "ajaxStart" ); + } + + // Uppercase the type + s.type = s.type.toUpperCase(); + + // Determine if request has content + s.hasContent = !rnoContent.test( s.type ); + + // Save the URL in case we're toying with the If-Modified-Since + // and/or If-None-Match header later on + // Remove hash to simplify url manipulation + cacheURL = s.url.replace( rhash, "" ); + + // More options handling for requests with no content + if ( !s.hasContent ) { + + // Remember the hash so we can put it back + uncached = s.url.slice( cacheURL.length ); + + // If data is available and should be processed, append data to url + if ( s.data && ( s.processData || typeof s.data === "string" ) ) { + cacheURL += ( rquery.test( cacheURL ) ? "&" : "?" ) + s.data; + + // #9682: remove data so that it's not used in an eventual retry + delete s.data; + } + + // Add or update anti-cache param if needed + if ( s.cache === false ) { + cacheURL = cacheURL.replace( rantiCache, "$1" ); + uncached = ( rquery.test( cacheURL ) ? "&" : "?" ) + "_=" + ( nonce.guid++ ) + + uncached; + } + + // Put hash and anti-cache on the URL that will be requested (gh-1732) + s.url = cacheURL + uncached; + + // Change '%20' to '+' if this is encoded form body content (gh-2658) + } else if ( s.data && s.processData && + ( s.contentType || "" ).indexOf( "application/x-www-form-urlencoded" ) === 0 ) { + s.data = s.data.replace( r20, "+" ); + } + + // Set the If-Modified-Since and/or If-None-Match header, if in ifModified mode. + if ( s.ifModified ) { + if ( jQuery.lastModified[ cacheURL ] ) { + jqXHR.setRequestHeader( "If-Modified-Since", jQuery.lastModified[ cacheURL ] ); + } + if ( jQuery.etag[ cacheURL ] ) { + jqXHR.setRequestHeader( "If-None-Match", jQuery.etag[ cacheURL ] ); + } + } + + // Set the correct header, if data is being sent + if ( s.data && s.hasContent && s.contentType !== false || options.contentType ) { + jqXHR.setRequestHeader( "Content-Type", s.contentType ); + } + + // Set the Accepts header for the server, depending on the dataType + jqXHR.setRequestHeader( + "Accept", + s.dataTypes[ 0 ] && s.accepts[ s.dataTypes[ 0 ] ] ? + s.accepts[ s.dataTypes[ 0 ] ] + + ( s.dataTypes[ 0 ] !== "*" ? ", " + allTypes + "; q=0.01" : "" ) : + s.accepts[ "*" ] + ); + + // Check for headers option + for ( i in s.headers ) { + jqXHR.setRequestHeader( i, s.headers[ i ] ); + } + + // Allow custom headers/mimetypes and early abort + if ( s.beforeSend && + ( s.beforeSend.call( callbackContext, jqXHR, s ) === false || completed ) ) { + + // Abort if not done already and return + return jqXHR.abort(); + } + + // Aborting is no longer a cancellation + strAbort = "abort"; + + // Install callbacks on deferreds + completeDeferred.add( s.complete ); + jqXHR.done( s.success ); + jqXHR.fail( s.error ); + + // Get transport + transport = inspectPrefiltersOrTransports( transports, s, options, jqXHR ); + + // If no transport, we auto-abort + if ( !transport ) { + done( -1, "No Transport" ); + } else { + jqXHR.readyState = 1; + + // Send global event + if ( fireGlobals ) { + globalEventContext.trigger( "ajaxSend", [ jqXHR, s ] ); + } + + // If request was aborted inside ajaxSend, stop there + if ( completed ) { + return jqXHR; + } + + // Timeout + if ( s.async && s.timeout > 0 ) { + timeoutTimer = window.setTimeout( function() { + jqXHR.abort( "timeout" ); + }, s.timeout ); + } + + try { + completed = false; + transport.send( requestHeaders, done ); + } catch ( e ) { + + // Rethrow post-completion exceptions + if ( completed ) { + throw e; + } + + // Propagate others as results + done( -1, e ); + } + } + + // Callback for when everything is done + function done( status, nativeStatusText, responses, headers ) { + var isSuccess, success, error, response, modified, + statusText = nativeStatusText; + + // Ignore repeat invocations + if ( completed ) { + return; + } + + completed = true; + + // Clear timeout if it exists + if ( timeoutTimer ) { + window.clearTimeout( timeoutTimer ); + } + + // Dereference transport for early garbage collection + // (no matter how long the jqXHR object will be used) + transport = undefined; + + // Cache response headers + responseHeadersString = headers || ""; + + // Set readyState + jqXHR.readyState = status > 0 ? 4 : 0; + + // Determine if successful + isSuccess = status >= 200 && status < 300 || status === 304; + + // Get response data + if ( responses ) { + response = ajaxHandleResponses( s, jqXHR, responses ); + } + + // Use a noop converter for missing script but not if jsonp + if ( !isSuccess && + jQuery.inArray( "script", s.dataTypes ) > -1 && + jQuery.inArray( "json", s.dataTypes ) < 0 ) { + s.converters[ "text script" ] = function() {}; + } + + // Convert no matter what (that way responseXXX fields are always set) + response = ajaxConvert( s, response, jqXHR, isSuccess ); + + // If successful, handle type chaining + if ( isSuccess ) { + + // Set the If-Modified-Since and/or If-None-Match header, if in ifModified mode. + if ( s.ifModified ) { + modified = jqXHR.getResponseHeader( "Last-Modified" ); + if ( modified ) { + jQuery.lastModified[ cacheURL ] = modified; + } + modified = jqXHR.getResponseHeader( "etag" ); + if ( modified ) { + jQuery.etag[ cacheURL ] = modified; + } + } + + // if no content + if ( status === 204 || s.type === "HEAD" ) { + statusText = "nocontent"; + + // if not modified + } else if ( status === 304 ) { + statusText = "notmodified"; + + // If we have data, let's convert it + } else { + statusText = response.state; + success = response.data; + error = response.error; + isSuccess = !error; + } + } else { + + // Extract error from statusText and normalize for non-aborts + error = statusText; + if ( status || !statusText ) { + statusText = "error"; + if ( status < 0 ) { + status = 0; + } + } + } + + // Set data for the fake xhr object + jqXHR.status = status; + jqXHR.statusText = ( nativeStatusText || statusText ) + ""; + + // Success/Error + if ( isSuccess ) { + deferred.resolveWith( callbackContext, [ success, statusText, jqXHR ] ); + } else { + deferred.rejectWith( callbackContext, [ jqXHR, statusText, error ] ); + } + + // Status-dependent callbacks + jqXHR.statusCode( statusCode ); + statusCode = undefined; + + if ( fireGlobals ) { + globalEventContext.trigger( isSuccess ? "ajaxSuccess" : "ajaxError", + [ jqXHR, s, isSuccess ? success : error ] ); + } + + // Complete + completeDeferred.fireWith( callbackContext, [ jqXHR, statusText ] ); + + if ( fireGlobals ) { + globalEventContext.trigger( "ajaxComplete", [ jqXHR, s ] ); + + // Handle the global AJAX counter + if ( !( --jQuery.active ) ) { + jQuery.event.trigger( "ajaxStop" ); + } + } + } + + return jqXHR; + }, + + getJSON: function( url, data, callback ) { + return jQuery.get( url, data, callback, "json" ); + }, + + getScript: function( url, callback ) { + return jQuery.get( url, undefined, callback, "script" ); + } +} ); + +jQuery.each( [ "get", "post" ], function( _i, method ) { + jQuery[ method ] = function( url, data, callback, type ) { + + // Shift arguments if data argument was omitted + if ( isFunction( data ) ) { + type = type || callback; + callback = data; + data = undefined; + } + + // The url can be an options object (which then must have .url) + return jQuery.ajax( jQuery.extend( { + url: url, + type: method, + dataType: type, + data: data, + success: callback + }, jQuery.isPlainObject( url ) && url ) ); + }; +} ); + +jQuery.ajaxPrefilter( function( s ) { + var i; + for ( i in s.headers ) { + if ( i.toLowerCase() === "content-type" ) { + s.contentType = s.headers[ i ] || ""; + } + } +} ); + + +jQuery._evalUrl = function( url, options, doc ) { + return jQuery.ajax( { + url: url, + + // Make this explicit, since user can override this through ajaxSetup (#11264) + type: "GET", + dataType: "script", + cache: true, + async: false, + global: false, + + // Only evaluate the response if it is successful (gh-4126) + // dataFilter is not invoked for failure responses, so using it instead + // of the default converter is kludgy but it works. + converters: { + "text script": function() {} + }, + dataFilter: function( response ) { + jQuery.globalEval( response, options, doc ); + } + } ); +}; + + +jQuery.fn.extend( { + wrapAll: function( html ) { + var wrap; + + if ( this[ 0 ] ) { + if ( isFunction( html ) ) { + html = html.call( this[ 0 ] ); + } + + // The elements to wrap the target around + wrap = jQuery( html, this[ 0 ].ownerDocument ).eq( 0 ).clone( true ); + + if ( this[ 0 ].parentNode ) { + wrap.insertBefore( this[ 0 ] ); + } + + wrap.map( function() { + var elem = this; + + while ( elem.firstElementChild ) { + elem = elem.firstElementChild; + } + + return elem; + } ).append( this ); + } + + return this; + }, + + wrapInner: function( html ) { + if ( isFunction( html ) ) { + return this.each( function( i ) { + jQuery( this ).wrapInner( html.call( this, i ) ); + } ); + } + + return this.each( function() { + var self = jQuery( this ), + contents = self.contents(); + + if ( contents.length ) { + contents.wrapAll( html ); + + } else { + self.append( html ); + } + } ); + }, + + wrap: function( html ) { + var htmlIsFunction = isFunction( html ); + + return this.each( function( i ) { + jQuery( this ).wrapAll( htmlIsFunction ? html.call( this, i ) : html ); + } ); + }, + + unwrap: function( selector ) { + this.parent( selector ).not( "body" ).each( function() { + jQuery( this ).replaceWith( this.childNodes ); + } ); + return this; + } +} ); + + +jQuery.expr.pseudos.hidden = function( elem ) { + return !jQuery.expr.pseudos.visible( elem ); +}; +jQuery.expr.pseudos.visible = function( elem ) { + return !!( elem.offsetWidth || elem.offsetHeight || elem.getClientRects().length ); +}; + + + + +jQuery.ajaxSettings.xhr = function() { + try { + return new window.XMLHttpRequest(); + } catch ( e ) {} +}; + +var xhrSuccessStatus = { + + // File protocol always yields status code 0, assume 200 + 0: 200, + + // Support: IE <=9 only + // #1450: sometimes IE returns 1223 when it should be 204 + 1223: 204 + }, + xhrSupported = jQuery.ajaxSettings.xhr(); + +support.cors = !!xhrSupported && ( "withCredentials" in xhrSupported ); +support.ajax = xhrSupported = !!xhrSupported; + +jQuery.ajaxTransport( function( options ) { + var callback, errorCallback; + + // Cross domain only allowed if supported through XMLHttpRequest + if ( support.cors || xhrSupported && !options.crossDomain ) { + return { + send: function( headers, complete ) { + var i, + xhr = options.xhr(); + + xhr.open( + options.type, + options.url, + options.async, + options.username, + options.password + ); + + // Apply custom fields if provided + if ( options.xhrFields ) { + for ( i in options.xhrFields ) { + xhr[ i ] = options.xhrFields[ i ]; + } + } + + // Override mime type if needed + if ( options.mimeType && xhr.overrideMimeType ) { + xhr.overrideMimeType( options.mimeType ); + } + + // X-Requested-With header + // For cross-domain requests, seeing as conditions for a preflight are + // akin to a jigsaw puzzle, we simply never set it to be sure. + // (it can always be set on a per-request basis or even using ajaxSetup) + // For same-domain requests, won't change header if already provided. + if ( !options.crossDomain && !headers[ "X-Requested-With" ] ) { + headers[ "X-Requested-With" ] = "XMLHttpRequest"; + } + + // Set headers + for ( i in headers ) { + xhr.setRequestHeader( i, headers[ i ] ); + } + + // Callback + callback = function( type ) { + return function() { + if ( callback ) { + callback = errorCallback = xhr.onload = + xhr.onerror = xhr.onabort = xhr.ontimeout = + xhr.onreadystatechange = null; + + if ( type === "abort" ) { + xhr.abort(); + } else if ( type === "error" ) { + + // Support: IE <=9 only + // On a manual native abort, IE9 throws + // errors on any property access that is not readyState + if ( typeof xhr.status !== "number" ) { + complete( 0, "error" ); + } else { + complete( + + // File: protocol always yields status 0; see #8605, #14207 + xhr.status, + xhr.statusText + ); + } + } else { + complete( + xhrSuccessStatus[ xhr.status ] || xhr.status, + xhr.statusText, + + // Support: IE <=9 only + // IE9 has no XHR2 but throws on binary (trac-11426) + // For XHR2 non-text, let the caller handle it (gh-2498) + ( xhr.responseType || "text" ) !== "text" || + typeof xhr.responseText !== "string" ? + { binary: xhr.response } : + { text: xhr.responseText }, + xhr.getAllResponseHeaders() + ); + } + } + }; + }; + + // Listen to events + xhr.onload = callback(); + errorCallback = xhr.onerror = xhr.ontimeout = callback( "error" ); + + // Support: IE 9 only + // Use onreadystatechange to replace onabort + // to handle uncaught aborts + if ( xhr.onabort !== undefined ) { + xhr.onabort = errorCallback; + } else { + xhr.onreadystatechange = function() { + + // Check readyState before timeout as it changes + if ( xhr.readyState === 4 ) { + + // Allow onerror to be called first, + // but that will not handle a native abort + // Also, save errorCallback to a variable + // as xhr.onerror cannot be accessed + window.setTimeout( function() { + if ( callback ) { + errorCallback(); + } + } ); + } + }; + } + + // Create the abort callback + callback = callback( "abort" ); + + try { + + // Do send the request (this may raise an exception) + xhr.send( options.hasContent && options.data || null ); + } catch ( e ) { + + // #14683: Only rethrow if this hasn't been notified as an error yet + if ( callback ) { + throw e; + } + } + }, + + abort: function() { + if ( callback ) { + callback(); + } + } + }; + } +} ); + + + + +// Prevent auto-execution of scripts when no explicit dataType was provided (See gh-2432) +jQuery.ajaxPrefilter( function( s ) { + if ( s.crossDomain ) { + s.contents.script = false; + } +} ); + +// Install script dataType +jQuery.ajaxSetup( { + accepts: { + script: "text/javascript, application/javascript, " + + "application/ecmascript, application/x-ecmascript" + }, + contents: { + script: /\b(?:java|ecma)script\b/ + }, + converters: { + "text script": function( text ) { + jQuery.globalEval( text ); + return text; + } + } +} ); + +// Handle cache's special case and crossDomain +jQuery.ajaxPrefilter( "script", function( s ) { + if ( s.cache === undefined ) { + s.cache = false; + } + if ( s.crossDomain ) { + s.type = "GET"; + } +} ); + +// Bind script tag hack transport +jQuery.ajaxTransport( "script", function( s ) { + + // This transport only deals with cross domain or forced-by-attrs requests + if ( s.crossDomain || s.scriptAttrs ) { + var script, callback; + return { + send: function( _, complete ) { + script = jQuery( " + + + + diff --git a/buscribe/professor/jquery-ui-1.13.0.custom/jquery-ui.css b/buscribe/professor/jquery-ui-1.13.0.custom/jquery-ui.css new file mode 100644 index 0000000..cba6402 --- /dev/null +++ b/buscribe/professor/jquery-ui-1.13.0.custom/jquery-ui.css @@ -0,0 +1,585 @@ +/*! jQuery UI - v1.13.0 - 2021-10-18 +* http://jqueryui.com +* Includes: core.css, autocomplete.css, menu.css, theme.css +* To view and modify this theme, visit http://jqueryui.com/themeroller/?scope=&folderName=base&cornerRadiusShadow=8px&offsetLeftShadow=0px&offsetTopShadow=0px&thicknessShadow=5px&opacityShadow=30&bgImgOpacityShadow=0&bgTextureShadow=flat&bgColorShadow=666666&opacityOverlay=30&bgImgOpacityOverlay=0&bgTextureOverlay=flat&bgColorOverlay=aaaaaa&iconColorError=cc0000&fcError=5f3f3f&borderColorError=f1a899&bgTextureError=flat&bgColorError=fddfdf&iconColorHighlight=777620&fcHighlight=777620&borderColorHighlight=dad55e&bgTextureHighlight=flat&bgColorHighlight=fffa90&iconColorActive=ffffff&fcActive=ffffff&borderColorActive=003eff&bgTextureActive=flat&bgColorActive=007fff&iconColorHover=555555&fcHover=2b2b2b&borderColorHover=cccccc&bgTextureHover=flat&bgColorHover=ededed&iconColorDefault=777777&fcDefault=454545&borderColorDefault=c5c5c5&bgTextureDefault=flat&bgColorDefault=f6f6f6&iconColorContent=444444&fcContent=333333&borderColorContent=dddddd&bgTextureContent=flat&bgColorContent=ffffff&iconColorHeader=444444&fcHeader=333333&borderColorHeader=dddddd&bgTextureHeader=flat&bgColorHeader=e9e9e9&cornerRadius=3px&fwDefault=normal&fsDefault=1em&ffDefault=Arial%2CHelvetica%2Csans-serif +* Copyright jQuery Foundation and other contributors; Licensed MIT */ + +/* Layout helpers +----------------------------------*/ +.ui-helper-hidden { + display: none; +} +.ui-helper-hidden-accessible { + border: 0; + clip: rect(0 0 0 0); + height: 1px; + margin: -1px; + overflow: hidden; + padding: 0; + position: absolute; + width: 1px; +} +.ui-helper-reset { + margin: 0; + padding: 0; + border: 0; + outline: 0; + line-height: 1.3; + text-decoration: none; + font-size: 100%; + list-style: none; +} +.ui-helper-clearfix:before, +.ui-helper-clearfix:after { + content: ""; + display: table; + border-collapse: collapse; +} +.ui-helper-clearfix:after { + clear: both; +} +.ui-helper-zfix { + width: 100%; + height: 100%; + top: 0; + left: 0; + position: absolute; + opacity: 0; + -ms-filter: "alpha(opacity=0)"; /* support: IE8 */ +} + +.ui-front { + z-index: 100; +} + + +/* Interaction Cues +----------------------------------*/ +.ui-state-disabled { + cursor: default !important; + pointer-events: none; +} + + +/* Icons +----------------------------------*/ +.ui-icon { + display: inline-block; + vertical-align: middle; + margin-top: -.25em; + position: relative; + text-indent: -99999px; + overflow: hidden; + background-repeat: no-repeat; +} + +.ui-widget-icon-block { + left: 50%; + margin-left: -8px; + display: block; +} + +/* Misc visuals +----------------------------------*/ + +/* Overlays */ +.ui-widget-overlay { + position: fixed; + top: 0; + left: 0; + width: 100%; + height: 100%; +} +.ui-autocomplete { + position: absolute; + top: 0; + left: 0; + cursor: default; +} +.ui-menu { + list-style: none; + padding: 0; + margin: 0; + display: block; + outline: 0; +} +.ui-menu .ui-menu { + position: absolute; +} +.ui-menu .ui-menu-item { + margin: 0; + cursor: pointer; + /* support: IE10, see #8844 */ + list-style-image: url("data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7"); +} +.ui-menu .ui-menu-item-wrapper { + position: relative; + padding: 3px 1em 3px .4em; +} +.ui-menu .ui-menu-divider { + margin: 5px 0; + height: 0; + font-size: 0; + line-height: 0; + border-width: 1px 0 0 0; +} +.ui-menu .ui-state-focus, +.ui-menu .ui-state-active { + margin: -1px; +} + +/* icon support */ +.ui-menu-icons { + position: relative; +} +.ui-menu-icons .ui-menu-item-wrapper { + padding-left: 2em; +} + +/* left-aligned */ +.ui-menu .ui-icon { + position: absolute; + top: 0; + bottom: 0; + left: .2em; + margin: auto 0; +} + +/* right-aligned */ +.ui-menu .ui-menu-icon { + left: auto; + right: 0; +} + +/* Component containers +----------------------------------*/ +.ui-widget { + font-family: Arial,Helvetica,sans-serif; + font-size: 1em; +} +.ui-widget .ui-widget { + font-size: 1em; +} +.ui-widget input, +.ui-widget select, +.ui-widget textarea, +.ui-widget button { + font-family: Arial,Helvetica,sans-serif; + font-size: 1em; +} +.ui-widget.ui-widget-content { + border: 1px solid #c5c5c5; +} +.ui-widget-content { + border: 1px solid #dddddd; + background: #ffffff; + color: #333333; +} +.ui-widget-content a { + color: #333333; +} +.ui-widget-header { + border: 1px solid #dddddd; + background: #e9e9e9; + color: #333333; + font-weight: bold; +} +.ui-widget-header a { + color: #333333; +} + +/* Interaction states +----------------------------------*/ +.ui-state-default, +.ui-widget-content .ui-state-default, +.ui-widget-header .ui-state-default, +.ui-button, + +/* We use html here because we need a greater specificity to make sure disabled +works properly when clicked or hovered */ +html .ui-button.ui-state-disabled:hover, +html .ui-button.ui-state-disabled:active { + border: 1px solid #c5c5c5; + background: #f6f6f6; + font-weight: normal; + color: #454545; +} +.ui-state-default a, +.ui-state-default a:link, +.ui-state-default a:visited, +a.ui-button, +a:link.ui-button, +a:visited.ui-button, +.ui-button { + color: #454545; + text-decoration: none; +} +.ui-state-hover, +.ui-widget-content .ui-state-hover, +.ui-widget-header .ui-state-hover, +.ui-state-focus, +.ui-widget-content .ui-state-focus, +.ui-widget-header .ui-state-focus, +.ui-button:hover, +.ui-button:focus { + border: 1px solid #cccccc; + background: #ededed; + font-weight: normal; + color: #2b2b2b; +} +.ui-state-hover a, +.ui-state-hover a:hover, +.ui-state-hover a:link, +.ui-state-hover a:visited, +.ui-state-focus a, +.ui-state-focus a:hover, +.ui-state-focus a:link, +.ui-state-focus a:visited, +a.ui-button:hover, +a.ui-button:focus { + color: #2b2b2b; + text-decoration: none; +} + +.ui-visual-focus { + box-shadow: 0 0 3px 1px rgb(94, 158, 214); +} +.ui-state-active, +.ui-widget-content .ui-state-active, +.ui-widget-header .ui-state-active, +a.ui-button:active, +.ui-button:active, +.ui-button.ui-state-active:hover { + border: 1px solid #003eff; + background: #007fff; + font-weight: normal; + color: #ffffff; +} +.ui-icon-background, +.ui-state-active .ui-icon-background { + border: #003eff; + background-color: #ffffff; +} +.ui-state-active a, +.ui-state-active a:link, +.ui-state-active a:visited { + color: #ffffff; + text-decoration: none; +} + +/* Interaction Cues +----------------------------------*/ +.ui-state-highlight, +.ui-widget-content .ui-state-highlight, +.ui-widget-header .ui-state-highlight { + border: 1px solid #dad55e; + background: #fffa90; + color: #777620; +} +.ui-state-checked { + border: 1px solid #dad55e; + background: #fffa90; +} +.ui-state-highlight a, +.ui-widget-content .ui-state-highlight a, +.ui-widget-header .ui-state-highlight a { + color: #777620; +} +.ui-state-error, +.ui-widget-content .ui-state-error, +.ui-widget-header .ui-state-error { + border: 1px solid #f1a899; + background: #fddfdf; + color: #5f3f3f; +} +.ui-state-error a, +.ui-widget-content .ui-state-error a, +.ui-widget-header .ui-state-error a { + color: #5f3f3f; +} +.ui-state-error-text, +.ui-widget-content .ui-state-error-text, +.ui-widget-header .ui-state-error-text { + color: #5f3f3f; +} +.ui-priority-primary, +.ui-widget-content .ui-priority-primary, +.ui-widget-header .ui-priority-primary { + font-weight: bold; +} +.ui-priority-secondary, +.ui-widget-content .ui-priority-secondary, +.ui-widget-header .ui-priority-secondary { + opacity: .7; + -ms-filter: "alpha(opacity=70)"; /* support: IE8 */ + font-weight: normal; +} +.ui-state-disabled, +.ui-widget-content .ui-state-disabled, +.ui-widget-header .ui-state-disabled { + opacity: .35; + -ms-filter: "alpha(opacity=35)"; /* support: IE8 */ + background-image: none; +} +.ui-state-disabled .ui-icon { + -ms-filter: "alpha(opacity=35)"; /* support: IE8 - See #6059 */ +} + +/* Icons +----------------------------------*/ + +/* states and images */ +.ui-icon { + width: 16px; + height: 16px; +} +.ui-icon, +.ui-widget-content .ui-icon { + background-image: url("images/ui-icons_444444_256x240.png"); +} +.ui-widget-header .ui-icon { + background-image: url("images/ui-icons_444444_256x240.png"); +} +.ui-state-hover .ui-icon, +.ui-state-focus .ui-icon, +.ui-button:hover .ui-icon, +.ui-button:focus .ui-icon { + background-image: url("images/ui-icons_555555_256x240.png"); +} +.ui-state-active .ui-icon, +.ui-button:active .ui-icon { + background-image: url("images/ui-icons_ffffff_256x240.png"); +} +.ui-state-highlight .ui-icon, +.ui-button .ui-state-highlight.ui-icon { + background-image: url("images/ui-icons_777620_256x240.png"); +} +.ui-state-error .ui-icon, +.ui-state-error-text .ui-icon { + background-image: url("images/ui-icons_cc0000_256x240.png"); +} +.ui-button .ui-icon { + background-image: url("images/ui-icons_777777_256x240.png"); +} + +/* positioning */ +/* Three classes needed to override `.ui-button:hover .ui-icon` */ +.ui-icon-blank.ui-icon-blank.ui-icon-blank { + background-image: none; +} +.ui-icon-caret-1-n { background-position: 0 0; } +.ui-icon-caret-1-ne { background-position: -16px 0; } +.ui-icon-caret-1-e { background-position: -32px 0; } +.ui-icon-caret-1-se { background-position: -48px 0; } +.ui-icon-caret-1-s { background-position: -65px 0; } +.ui-icon-caret-1-sw { background-position: -80px 0; } +.ui-icon-caret-1-w { background-position: -96px 0; } +.ui-icon-caret-1-nw { background-position: -112px 0; } +.ui-icon-caret-2-n-s { background-position: -128px 0; } +.ui-icon-caret-2-e-w { background-position: -144px 0; } +.ui-icon-triangle-1-n { background-position: 0 -16px; } +.ui-icon-triangle-1-ne { background-position: -16px -16px; } +.ui-icon-triangle-1-e { background-position: -32px -16px; } +.ui-icon-triangle-1-se { background-position: -48px -16px; } +.ui-icon-triangle-1-s { background-position: -65px -16px; } +.ui-icon-triangle-1-sw { background-position: -80px -16px; } +.ui-icon-triangle-1-w { background-position: -96px -16px; } +.ui-icon-triangle-1-nw { background-position: -112px -16px; } +.ui-icon-triangle-2-n-s { background-position: -128px -16px; } +.ui-icon-triangle-2-e-w { background-position: -144px -16px; } +.ui-icon-arrow-1-n { background-position: 0 -32px; } +.ui-icon-arrow-1-ne { background-position: -16px -32px; } +.ui-icon-arrow-1-e { background-position: -32px -32px; } +.ui-icon-arrow-1-se { background-position: -48px -32px; } +.ui-icon-arrow-1-s { background-position: -65px -32px; } +.ui-icon-arrow-1-sw { background-position: -80px -32px; } +.ui-icon-arrow-1-w { background-position: -96px -32px; } +.ui-icon-arrow-1-nw { background-position: -112px -32px; } +.ui-icon-arrow-2-n-s { background-position: -128px -32px; } +.ui-icon-arrow-2-ne-sw { background-position: -144px -32px; } +.ui-icon-arrow-2-e-w { background-position: -160px -32px; } +.ui-icon-arrow-2-se-nw { background-position: -176px -32px; } +.ui-icon-arrowstop-1-n { background-position: -192px -32px; } +.ui-icon-arrowstop-1-e { background-position: -208px -32px; } +.ui-icon-arrowstop-1-s { background-position: -224px -32px; } +.ui-icon-arrowstop-1-w { background-position: -240px -32px; } +.ui-icon-arrowthick-1-n { background-position: 1px -48px; } +.ui-icon-arrowthick-1-ne { background-position: -16px -48px; } +.ui-icon-arrowthick-1-e { background-position: -32px -48px; } +.ui-icon-arrowthick-1-se { background-position: -48px -48px; } +.ui-icon-arrowthick-1-s { background-position: -64px -48px; } +.ui-icon-arrowthick-1-sw { background-position: -80px -48px; } +.ui-icon-arrowthick-1-w { background-position: -96px -48px; } +.ui-icon-arrowthick-1-nw { background-position: -112px -48px; } +.ui-icon-arrowthick-2-n-s { background-position: -128px -48px; } +.ui-icon-arrowthick-2-ne-sw { background-position: -144px -48px; } +.ui-icon-arrowthick-2-e-w { background-position: -160px -48px; } +.ui-icon-arrowthick-2-se-nw { background-position: -176px -48px; } +.ui-icon-arrowthickstop-1-n { background-position: -192px -48px; } +.ui-icon-arrowthickstop-1-e { background-position: -208px -48px; } +.ui-icon-arrowthickstop-1-s { background-position: -224px -48px; } +.ui-icon-arrowthickstop-1-w { background-position: -240px -48px; } +.ui-icon-arrowreturnthick-1-w { background-position: 0 -64px; } +.ui-icon-arrowreturnthick-1-n { background-position: -16px -64px; } +.ui-icon-arrowreturnthick-1-e { background-position: -32px -64px; } +.ui-icon-arrowreturnthick-1-s { background-position: -48px -64px; } +.ui-icon-arrowreturn-1-w { background-position: -64px -64px; } +.ui-icon-arrowreturn-1-n { background-position: -80px -64px; } +.ui-icon-arrowreturn-1-e { background-position: -96px -64px; } +.ui-icon-arrowreturn-1-s { background-position: -112px -64px; } +.ui-icon-arrowrefresh-1-w { background-position: -128px -64px; } +.ui-icon-arrowrefresh-1-n { background-position: -144px -64px; } +.ui-icon-arrowrefresh-1-e { background-position: -160px -64px; } +.ui-icon-arrowrefresh-1-s { background-position: -176px -64px; } +.ui-icon-arrow-4 { background-position: 0 -80px; } +.ui-icon-arrow-4-diag { background-position: -16px -80px; } +.ui-icon-extlink { background-position: -32px -80px; } +.ui-icon-newwin { background-position: -48px -80px; } +.ui-icon-refresh { background-position: -64px -80px; } +.ui-icon-shuffle { background-position: -80px -80px; } +.ui-icon-transfer-e-w { background-position: -96px -80px; } +.ui-icon-transferthick-e-w { background-position: -112px -80px; } +.ui-icon-folder-collapsed { background-position: 0 -96px; } +.ui-icon-folder-open { background-position: -16px -96px; } +.ui-icon-document { background-position: -32px -96px; } +.ui-icon-document-b { background-position: -48px -96px; } +.ui-icon-note { background-position: -64px -96px; } +.ui-icon-mail-closed { background-position: -80px -96px; } +.ui-icon-mail-open { background-position: -96px -96px; } +.ui-icon-suitcase { background-position: -112px -96px; } +.ui-icon-comment { background-position: -128px -96px; } +.ui-icon-person { background-position: -144px -96px; } +.ui-icon-print { background-position: -160px -96px; } +.ui-icon-trash { background-position: -176px -96px; } +.ui-icon-locked { background-position: -192px -96px; } +.ui-icon-unlocked { background-position: -208px -96px; } +.ui-icon-bookmark { background-position: -224px -96px; } +.ui-icon-tag { background-position: -240px -96px; } +.ui-icon-home { background-position: 0 -112px; } +.ui-icon-flag { background-position: -16px -112px; } +.ui-icon-calendar { background-position: -32px -112px; } +.ui-icon-cart { background-position: -48px -112px; } +.ui-icon-pencil { background-position: -64px -112px; } +.ui-icon-clock { background-position: -80px -112px; } +.ui-icon-disk { background-position: -96px -112px; } +.ui-icon-calculator { background-position: -112px -112px; } +.ui-icon-zoomin { background-position: -128px -112px; } +.ui-icon-zoomout { background-position: -144px -112px; } +.ui-icon-search { background-position: -160px -112px; } +.ui-icon-wrench { background-position: -176px -112px; } +.ui-icon-gear { background-position: -192px -112px; } +.ui-icon-heart { background-position: -208px -112px; } +.ui-icon-star { background-position: -224px -112px; } +.ui-icon-link { background-position: -240px -112px; } +.ui-icon-cancel { background-position: 0 -128px; } +.ui-icon-plus { background-position: -16px -128px; } +.ui-icon-plusthick { background-position: -32px -128px; } +.ui-icon-minus { background-position: -48px -128px; } +.ui-icon-minusthick { background-position: -64px -128px; } +.ui-icon-close { background-position: -80px -128px; } +.ui-icon-closethick { background-position: -96px -128px; } +.ui-icon-key { background-position: -112px -128px; } +.ui-icon-lightbulb { background-position: -128px -128px; } +.ui-icon-scissors { background-position: -144px -128px; } +.ui-icon-clipboard { background-position: -160px -128px; } +.ui-icon-copy { background-position: -176px -128px; } +.ui-icon-contact { background-position: -192px -128px; } +.ui-icon-image { background-position: -208px -128px; } +.ui-icon-video { background-position: -224px -128px; } +.ui-icon-script { background-position: -240px -128px; } +.ui-icon-alert { background-position: 0 -144px; } +.ui-icon-info { background-position: -16px -144px; } +.ui-icon-notice { background-position: -32px -144px; } +.ui-icon-help { background-position: -48px -144px; } +.ui-icon-check { background-position: -64px -144px; } +.ui-icon-bullet { background-position: -80px -144px; } +.ui-icon-radio-on { background-position: -96px -144px; } +.ui-icon-radio-off { background-position: -112px -144px; } +.ui-icon-pin-w { background-position: -128px -144px; } +.ui-icon-pin-s { background-position: -144px -144px; } +.ui-icon-play { background-position: 0 -160px; } +.ui-icon-pause { background-position: -16px -160px; } +.ui-icon-seek-next { background-position: -32px -160px; } +.ui-icon-seek-prev { background-position: -48px -160px; } +.ui-icon-seek-end { background-position: -64px -160px; } +.ui-icon-seek-start { background-position: -80px -160px; } +/* ui-icon-seek-first is deprecated, use ui-icon-seek-start instead */ +.ui-icon-seek-first { background-position: -80px -160px; } +.ui-icon-stop { background-position: -96px -160px; } +.ui-icon-eject { background-position: -112px -160px; } +.ui-icon-volume-off { background-position: -128px -160px; } +.ui-icon-volume-on { background-position: -144px -160px; } +.ui-icon-power { background-position: 0 -176px; } +.ui-icon-signal-diag { background-position: -16px -176px; } +.ui-icon-signal { background-position: -32px -176px; } +.ui-icon-battery-0 { background-position: -48px -176px; } +.ui-icon-battery-1 { background-position: -64px -176px; } +.ui-icon-battery-2 { background-position: -80px -176px; } +.ui-icon-battery-3 { background-position: -96px -176px; } +.ui-icon-circle-plus { background-position: 0 -192px; } +.ui-icon-circle-minus { background-position: -16px -192px; } +.ui-icon-circle-close { background-position: -32px -192px; } +.ui-icon-circle-triangle-e { background-position: -48px -192px; } +.ui-icon-circle-triangle-s { background-position: -64px -192px; } +.ui-icon-circle-triangle-w { background-position: -80px -192px; } +.ui-icon-circle-triangle-n { background-position: -96px -192px; } +.ui-icon-circle-arrow-e { background-position: -112px -192px; } +.ui-icon-circle-arrow-s { background-position: -128px -192px; } +.ui-icon-circle-arrow-w { background-position: -144px -192px; } +.ui-icon-circle-arrow-n { background-position: -160px -192px; } +.ui-icon-circle-zoomin { background-position: -176px -192px; } +.ui-icon-circle-zoomout { background-position: -192px -192px; } +.ui-icon-circle-check { background-position: -208px -192px; } +.ui-icon-circlesmall-plus { background-position: 0 -208px; } +.ui-icon-circlesmall-minus { background-position: -16px -208px; } +.ui-icon-circlesmall-close { background-position: -32px -208px; } +.ui-icon-squaresmall-plus { background-position: -48px -208px; } +.ui-icon-squaresmall-minus { background-position: -64px -208px; } +.ui-icon-squaresmall-close { background-position: -80px -208px; } +.ui-icon-grip-dotted-vertical { background-position: 0 -224px; } +.ui-icon-grip-dotted-horizontal { background-position: -16px -224px; } +.ui-icon-grip-solid-vertical { background-position: -32px -224px; } +.ui-icon-grip-solid-horizontal { background-position: -48px -224px; } +.ui-icon-gripsmall-diagonal-se { background-position: -64px -224px; } +.ui-icon-grip-diagonal-se { background-position: -80px -224px; } + + +/* Misc visuals +----------------------------------*/ + +/* Corner radius */ +.ui-corner-all, +.ui-corner-top, +.ui-corner-left, +.ui-corner-tl { + border-top-left-radius: 3px; +} +.ui-corner-all, +.ui-corner-top, +.ui-corner-right, +.ui-corner-tr { + border-top-right-radius: 3px; +} +.ui-corner-all, +.ui-corner-bottom, +.ui-corner-left, +.ui-corner-bl { + border-bottom-left-radius: 3px; +} +.ui-corner-all, +.ui-corner-bottom, +.ui-corner-right, +.ui-corner-br { + border-bottom-right-radius: 3px; +} + +/* Overlays */ +.ui-widget-overlay { + background: #aaaaaa; + opacity: .3; + -ms-filter: Alpha(Opacity=30); /* support: IE8 */ +} +.ui-widget-shadow { + -webkit-box-shadow: 0px 0px 5px #666666; + box-shadow: 0px 0px 5px #666666; +} diff --git a/buscribe/professor/jquery-ui-1.13.0.custom/jquery-ui.js b/buscribe/professor/jquery-ui-1.13.0.custom/jquery-ui.js new file mode 100644 index 0000000..e1c0666 --- /dev/null +++ b/buscribe/professor/jquery-ui-1.13.0.custom/jquery-ui.js @@ -0,0 +1,2708 @@ +/*! jQuery UI - v1.13.0 - 2021-10-18 +* http://jqueryui.com +* Includes: widget.js, position.js, keycode.js, unique-id.js, widgets/autocomplete.js, widgets/menu.js +* Copyright jQuery Foundation and other contributors; Licensed MIT */ + +( function( factory ) { + "use strict"; + + if ( typeof define === "function" && define.amd ) { + + // AMD. Register as an anonymous module. + define( [ "jquery" ], factory ); + } else { + + // Browser globals + factory( jQuery ); + } +} )( function( $ ) { +"use strict"; + +$.ui = $.ui || {}; + +var version = $.ui.version = "1.13.0"; + + +/*! + * jQuery UI Widget 1.13.0 + * http://jqueryui.com + * + * Copyright jQuery Foundation and other contributors + * Released under the MIT license. + * http://jquery.org/license + */ + +//>>label: Widget +//>>group: Core +//>>description: Provides a factory for creating stateful widgets with a common API. +//>>docs: http://api.jqueryui.com/jQuery.widget/ +//>>demos: http://jqueryui.com/widget/ + + +var widgetUuid = 0; +var widgetHasOwnProperty = Array.prototype.hasOwnProperty; +var widgetSlice = Array.prototype.slice; + +$.cleanData = ( function( orig ) { + return function( elems ) { + var events, elem, i; + for ( i = 0; ( elem = elems[ i ] ) != null; i++ ) { + + // Only trigger remove when necessary to save time + events = $._data( elem, "events" ); + if ( events && events.remove ) { + $( elem ).triggerHandler( "remove" ); + } + } + orig( elems ); + }; +} )( $.cleanData ); + +$.widget = function( name, base, prototype ) { + var existingConstructor, constructor, basePrototype; + + // ProxiedPrototype allows the provided prototype to remain unmodified + // so that it can be used as a mixin for multiple widgets (#8876) + var proxiedPrototype = {}; + + var namespace = name.split( "." )[ 0 ]; + name = name.split( "." )[ 1 ]; + var fullName = namespace + "-" + name; + + if ( !prototype ) { + prototype = base; + base = $.Widget; + } + + if ( Array.isArray( prototype ) ) { + prototype = $.extend.apply( null, [ {} ].concat( prototype ) ); + } + + // Create selector for plugin + $.expr.pseudos[ fullName.toLowerCase() ] = function( elem ) { + return !!$.data( elem, fullName ); + }; + + $[ namespace ] = $[ namespace ] || {}; + existingConstructor = $[ namespace ][ name ]; + constructor = $[ namespace ][ name ] = function( options, element ) { + + // Allow instantiation without "new" keyword + if ( !this._createWidget ) { + return new constructor( options, element ); + } + + // Allow instantiation without initializing for simple inheritance + // must use "new" keyword (the code above always passes args) + if ( arguments.length ) { + this._createWidget( options, element ); + } + }; + + // Extend with the existing constructor to carry over any static properties + $.extend( constructor, existingConstructor, { + version: prototype.version, + + // Copy the object used to create the prototype in case we need to + // redefine the widget later + _proto: $.extend( {}, prototype ), + + // Track widgets that inherit from this widget in case this widget is + // redefined after a widget inherits from it + _childConstructors: [] + } ); + + basePrototype = new base(); + + // We need to make the options hash a property directly on the new instance + // otherwise we'll modify the options hash on the prototype that we're + // inheriting from + basePrototype.options = $.widget.extend( {}, basePrototype.options ); + $.each( prototype, function( prop, value ) { + if ( typeof value !== "function" ) { + proxiedPrototype[ prop ] = value; + return; + } + proxiedPrototype[ prop ] = ( function() { + function _super() { + return base.prototype[ prop ].apply( this, arguments ); + } + + function _superApply( args ) { + return base.prototype[ prop ].apply( this, args ); + } + + return function() { + var __super = this._super; + var __superApply = this._superApply; + var returnValue; + + this._super = _super; + this._superApply = _superApply; + + returnValue = value.apply( this, arguments ); + + this._super = __super; + this._superApply = __superApply; + + return returnValue; + }; + } )(); + } ); + constructor.prototype = $.widget.extend( basePrototype, { + + // TODO: remove support for widgetEventPrefix + // always use the name + a colon as the prefix, e.g., draggable:start + // don't prefix for widgets that aren't DOM-based + widgetEventPrefix: existingConstructor ? ( basePrototype.widgetEventPrefix || name ) : name + }, proxiedPrototype, { + constructor: constructor, + namespace: namespace, + widgetName: name, + widgetFullName: fullName + } ); + + // If this widget is being redefined then we need to find all widgets that + // are inheriting from it and redefine all of them so that they inherit from + // the new version of this widget. We're essentially trying to replace one + // level in the prototype chain. + if ( existingConstructor ) { + $.each( existingConstructor._childConstructors, function( i, child ) { + var childPrototype = child.prototype; + + // Redefine the child widget using the same prototype that was + // originally used, but inherit from the new version of the base + $.widget( childPrototype.namespace + "." + childPrototype.widgetName, constructor, + child._proto ); + } ); + + // Remove the list of existing child constructors from the old constructor + // so the old child constructors can be garbage collected + delete existingConstructor._childConstructors; + } else { + base._childConstructors.push( constructor ); + } + + $.widget.bridge( name, constructor ); + + return constructor; +}; + +$.widget.extend = function( target ) { + var input = widgetSlice.call( arguments, 1 ); + var inputIndex = 0; + var inputLength = input.length; + var key; + var value; + + for ( ; inputIndex < inputLength; inputIndex++ ) { + for ( key in input[ inputIndex ] ) { + value = input[ inputIndex ][ key ]; + if ( widgetHasOwnProperty.call( input[ inputIndex ], key ) && value !== undefined ) { + + // Clone objects + if ( $.isPlainObject( value ) ) { + target[ key ] = $.isPlainObject( target[ key ] ) ? + $.widget.extend( {}, target[ key ], value ) : + + // Don't extend strings, arrays, etc. with objects + $.widget.extend( {}, value ); + + // Copy everything else by reference + } else { + target[ key ] = value; + } + } + } + } + return target; +}; + +$.widget.bridge = function( name, object ) { + var fullName = object.prototype.widgetFullName || name; + $.fn[ name ] = function( options ) { + var isMethodCall = typeof options === "string"; + var args = widgetSlice.call( arguments, 1 ); + var returnValue = this; + + if ( isMethodCall ) { + + // If this is an empty collection, we need to have the instance method + // return undefined instead of the jQuery instance + if ( !this.length && options === "instance" ) { + returnValue = undefined; + } else { + this.each( function() { + var methodValue; + var instance = $.data( this, fullName ); + + if ( options === "instance" ) { + returnValue = instance; + return false; + } + + if ( !instance ) { + return $.error( "cannot call methods on " + name + + " prior to initialization; " + + "attempted to call method '" + options + "'" ); + } + + if ( typeof instance[ options ] !== "function" || + options.charAt( 0 ) === "_" ) { + return $.error( "no such method '" + options + "' for " + name + + " widget instance" ); + } + + methodValue = instance[ options ].apply( instance, args ); + + if ( methodValue !== instance && methodValue !== undefined ) { + returnValue = methodValue && methodValue.jquery ? + returnValue.pushStack( methodValue.get() ) : + methodValue; + return false; + } + } ); + } + } else { + + // Allow multiple hashes to be passed on init + if ( args.length ) { + options = $.widget.extend.apply( null, [ options ].concat( args ) ); + } + + this.each( function() { + var instance = $.data( this, fullName ); + if ( instance ) { + instance.option( options || {} ); + if ( instance._init ) { + instance._init(); + } + } else { + $.data( this, fullName, new object( options, this ) ); + } + } ); + } + + return returnValue; + }; +}; + +$.Widget = function( /* options, element */ ) {}; +$.Widget._childConstructors = []; + +$.Widget.prototype = { + widgetName: "widget", + widgetEventPrefix: "", + defaultElement: "
", + + options: { + classes: {}, + disabled: false, + + // Callbacks + create: null + }, + + _createWidget: function( options, element ) { + element = $( element || this.defaultElement || this )[ 0 ]; + this.element = $( element ); + this.uuid = widgetUuid++; + this.eventNamespace = "." + this.widgetName + this.uuid; + + this.bindings = $(); + this.hoverable = $(); + this.focusable = $(); + this.classesElementLookup = {}; + + if ( element !== this ) { + $.data( element, this.widgetFullName, this ); + this._on( true, this.element, { + remove: function( event ) { + if ( event.target === element ) { + this.destroy(); + } + } + } ); + this.document = $( element.style ? + + // Element within the document + element.ownerDocument : + + // Element is window or document + element.document || element ); + this.window = $( this.document[ 0 ].defaultView || this.document[ 0 ].parentWindow ); + } + + this.options = $.widget.extend( {}, + this.options, + this._getCreateOptions(), + options ); + + this._create(); + + if ( this.options.disabled ) { + this._setOptionDisabled( this.options.disabled ); + } + + this._trigger( "create", null, this._getCreateEventData() ); + this._init(); + }, + + _getCreateOptions: function() { + return {}; + }, + + _getCreateEventData: $.noop, + + _create: $.noop, + + _init: $.noop, + + destroy: function() { + var that = this; + + this._destroy(); + $.each( this.classesElementLookup, function( key, value ) { + that._removeClass( value, key ); + } ); + + // We can probably remove the unbind calls in 2.0 + // all event bindings should go through this._on() + this.element + .off( this.eventNamespace ) + .removeData( this.widgetFullName ); + this.widget() + .off( this.eventNamespace ) + .removeAttr( "aria-disabled" ); + + // Clean up events and states + this.bindings.off( this.eventNamespace ); + }, + + _destroy: $.noop, + + widget: function() { + return this.element; + }, + + option: function( key, value ) { + var options = key; + var parts; + var curOption; + var i; + + if ( arguments.length === 0 ) { + + // Don't return a reference to the internal hash + return $.widget.extend( {}, this.options ); + } + + if ( typeof key === "string" ) { + + // Handle nested keys, e.g., "foo.bar" => { foo: { bar: ___ } } + options = {}; + parts = key.split( "." ); + key = parts.shift(); + if ( parts.length ) { + curOption = options[ key ] = $.widget.extend( {}, this.options[ key ] ); + for ( i = 0; i < parts.length - 1; i++ ) { + curOption[ parts[ i ] ] = curOption[ parts[ i ] ] || {}; + curOption = curOption[ parts[ i ] ]; + } + key = parts.pop(); + if ( arguments.length === 1 ) { + return curOption[ key ] === undefined ? null : curOption[ key ]; + } + curOption[ key ] = value; + } else { + if ( arguments.length === 1 ) { + return this.options[ key ] === undefined ? null : this.options[ key ]; + } + options[ key ] = value; + } + } + + this._setOptions( options ); + + return this; + }, + + _setOptions: function( options ) { + var key; + + for ( key in options ) { + this._setOption( key, options[ key ] ); + } + + return this; + }, + + _setOption: function( key, value ) { + if ( key === "classes" ) { + this._setOptionClasses( value ); + } + + this.options[ key ] = value; + + if ( key === "disabled" ) { + this._setOptionDisabled( value ); + } + + return this; + }, + + _setOptionClasses: function( value ) { + var classKey, elements, currentElements; + + for ( classKey in value ) { + currentElements = this.classesElementLookup[ classKey ]; + if ( value[ classKey ] === this.options.classes[ classKey ] || + !currentElements || + !currentElements.length ) { + continue; + } + + // We are doing this to create a new jQuery object because the _removeClass() call + // on the next line is going to destroy the reference to the current elements being + // tracked. We need to save a copy of this collection so that we can add the new classes + // below. + elements = $( currentElements.get() ); + this._removeClass( currentElements, classKey ); + + // We don't use _addClass() here, because that uses this.options.classes + // for generating the string of classes. We want to use the value passed in from + // _setOption(), this is the new value of the classes option which was passed to + // _setOption(). We pass this value directly to _classes(). + elements.addClass( this._classes( { + element: elements, + keys: classKey, + classes: value, + add: true + } ) ); + } + }, + + _setOptionDisabled: function( value ) { + this._toggleClass( this.widget(), this.widgetFullName + "-disabled", null, !!value ); + + // If the widget is becoming disabled, then nothing is interactive + if ( value ) { + this._removeClass( this.hoverable, null, "ui-state-hover" ); + this._removeClass( this.focusable, null, "ui-state-focus" ); + } + }, + + enable: function() { + return this._setOptions( { disabled: false } ); + }, + + disable: function() { + return this._setOptions( { disabled: true } ); + }, + + _classes: function( options ) { + var full = []; + var that = this; + + options = $.extend( { + element: this.element, + classes: this.options.classes || {} + }, options ); + + function bindRemoveEvent() { + options.element.each( function( _, element ) { + var isTracked = $.map( that.classesElementLookup, function( elements ) { + return elements; + } ) + .some( function( elements ) { + return elements.is( element ); + } ); + + if ( !isTracked ) { + that._on( $( element ), { + remove: "_untrackClassesElement" + } ); + } + } ); + } + + function processClassString( classes, checkOption ) { + var current, i; + for ( i = 0; i < classes.length; i++ ) { + current = that.classesElementLookup[ classes[ i ] ] || $(); + if ( options.add ) { + bindRemoveEvent(); + current = $( $.uniqueSort( current.get().concat( options.element.get() ) ) ); + } else { + current = $( current.not( options.element ).get() ); + } + that.classesElementLookup[ classes[ i ] ] = current; + full.push( classes[ i ] ); + if ( checkOption && options.classes[ classes[ i ] ] ) { + full.push( options.classes[ classes[ i ] ] ); + } + } + } + + if ( options.keys ) { + processClassString( options.keys.match( /\S+/g ) || [], true ); + } + if ( options.extra ) { + processClassString( options.extra.match( /\S+/g ) || [] ); + } + + return full.join( " " ); + }, + + _untrackClassesElement: function( event ) { + var that = this; + $.each( that.classesElementLookup, function( key, value ) { + if ( $.inArray( event.target, value ) !== -1 ) { + that.classesElementLookup[ key ] = $( value.not( event.target ).get() ); + } + } ); + + this._off( $( event.target ) ); + }, + + _removeClass: function( element, keys, extra ) { + return this._toggleClass( element, keys, extra, false ); + }, + + _addClass: function( element, keys, extra ) { + return this._toggleClass( element, keys, extra, true ); + }, + + _toggleClass: function( element, keys, extra, add ) { + add = ( typeof add === "boolean" ) ? add : extra; + var shift = ( typeof element === "string" || element === null ), + options = { + extra: shift ? keys : extra, + keys: shift ? element : keys, + element: shift ? this.element : element, + add: add + }; + options.element.toggleClass( this._classes( options ), add ); + return this; + }, + + _on: function( suppressDisabledCheck, element, handlers ) { + var delegateElement; + var instance = this; + + // No suppressDisabledCheck flag, shuffle arguments + if ( typeof suppressDisabledCheck !== "boolean" ) { + handlers = element; + element = suppressDisabledCheck; + suppressDisabledCheck = false; + } + + // No element argument, shuffle and use this.element + if ( !handlers ) { + handlers = element; + element = this.element; + delegateElement = this.widget(); + } else { + element = delegateElement = $( element ); + this.bindings = this.bindings.add( element ); + } + + $.each( handlers, function( event, handler ) { + function handlerProxy() { + + // Allow widgets to customize the disabled handling + // - disabled as an array instead of boolean + // - disabled class as method for disabling individual parts + if ( !suppressDisabledCheck && + ( instance.options.disabled === true || + $( this ).hasClass( "ui-state-disabled" ) ) ) { + return; + } + return ( typeof handler === "string" ? instance[ handler ] : handler ) + .apply( instance, arguments ); + } + + // Copy the guid so direct unbinding works + if ( typeof handler !== "string" ) { + handlerProxy.guid = handler.guid = + handler.guid || handlerProxy.guid || $.guid++; + } + + var match = event.match( /^([\w:-]*)\s*(.*)$/ ); + var eventName = match[ 1 ] + instance.eventNamespace; + var selector = match[ 2 ]; + + if ( selector ) { + delegateElement.on( eventName, selector, handlerProxy ); + } else { + element.on( eventName, handlerProxy ); + } + } ); + }, + + _off: function( element, eventName ) { + eventName = ( eventName || "" ).split( " " ).join( this.eventNamespace + " " ) + + this.eventNamespace; + element.off( eventName ); + + // Clear the stack to avoid memory leaks (#10056) + this.bindings = $( this.bindings.not( element ).get() ); + this.focusable = $( this.focusable.not( element ).get() ); + this.hoverable = $( this.hoverable.not( element ).get() ); + }, + + _delay: function( handler, delay ) { + function handlerProxy() { + return ( typeof handler === "string" ? instance[ handler ] : handler ) + .apply( instance, arguments ); + } + var instance = this; + return setTimeout( handlerProxy, delay || 0 ); + }, + + _hoverable: function( element ) { + this.hoverable = this.hoverable.add( element ); + this._on( element, { + mouseenter: function( event ) { + this._addClass( $( event.currentTarget ), null, "ui-state-hover" ); + }, + mouseleave: function( event ) { + this._removeClass( $( event.currentTarget ), null, "ui-state-hover" ); + } + } ); + }, + + _focusable: function( element ) { + this.focusable = this.focusable.add( element ); + this._on( element, { + focusin: function( event ) { + this._addClass( $( event.currentTarget ), null, "ui-state-focus" ); + }, + focusout: function( event ) { + this._removeClass( $( event.currentTarget ), null, "ui-state-focus" ); + } + } ); + }, + + _trigger: function( type, event, data ) { + var prop, orig; + var callback = this.options[ type ]; + + data = data || {}; + event = $.Event( event ); + event.type = ( type === this.widgetEventPrefix ? + type : + this.widgetEventPrefix + type ).toLowerCase(); + + // The original event may come from any element + // so we need to reset the target on the new event + event.target = this.element[ 0 ]; + + // Copy original event properties over to the new event + orig = event.originalEvent; + if ( orig ) { + for ( prop in orig ) { + if ( !( prop in event ) ) { + event[ prop ] = orig[ prop ]; + } + } + } + + this.element.trigger( event, data ); + return !( typeof callback === "function" && + callback.apply( this.element[ 0 ], [ event ].concat( data ) ) === false || + event.isDefaultPrevented() ); + } +}; + +$.each( { show: "fadeIn", hide: "fadeOut" }, function( method, defaultEffect ) { + $.Widget.prototype[ "_" + method ] = function( element, options, callback ) { + if ( typeof options === "string" ) { + options = { effect: options }; + } + + var hasOptions; + var effectName = !options ? + method : + options === true || typeof options === "number" ? + defaultEffect : + options.effect || defaultEffect; + + options = options || {}; + if ( typeof options === "number" ) { + options = { duration: options }; + } else if ( options === true ) { + options = {}; + } + + hasOptions = !$.isEmptyObject( options ); + options.complete = callback; + + if ( options.delay ) { + element.delay( options.delay ); + } + + if ( hasOptions && $.effects && $.effects.effect[ effectName ] ) { + element[ method ]( options ); + } else if ( effectName !== method && element[ effectName ] ) { + element[ effectName ]( options.duration, options.easing, callback ); + } else { + element.queue( function( next ) { + $( this )[ method ](); + if ( callback ) { + callback.call( element[ 0 ] ); + } + next(); + } ); + } + }; +} ); + +var widget = $.widget; + + +/*! + * jQuery UI Position 1.13.0 + * http://jqueryui.com + * + * Copyright jQuery Foundation and other contributors + * Released under the MIT license. + * http://jquery.org/license + * + * http://api.jqueryui.com/position/ + */ + +//>>label: Position +//>>group: Core +//>>description: Positions elements relative to other elements. +//>>docs: http://api.jqueryui.com/position/ +//>>demos: http://jqueryui.com/position/ + + +( function() { +var cachedScrollbarWidth, + max = Math.max, + abs = Math.abs, + rhorizontal = /left|center|right/, + rvertical = /top|center|bottom/, + roffset = /[\+\-]\d+(\.[\d]+)?%?/, + rposition = /^\w+/, + rpercent = /%$/, + _position = $.fn.position; + +function getOffsets( offsets, width, height ) { + return [ + parseFloat( offsets[ 0 ] ) * ( rpercent.test( offsets[ 0 ] ) ? width / 100 : 1 ), + parseFloat( offsets[ 1 ] ) * ( rpercent.test( offsets[ 1 ] ) ? height / 100 : 1 ) + ]; +} + +function parseCss( element, property ) { + return parseInt( $.css( element, property ), 10 ) || 0; +} + +function isWindow( obj ) { + return obj != null && obj === obj.window; +} + +function getDimensions( elem ) { + var raw = elem[ 0 ]; + if ( raw.nodeType === 9 ) { + return { + width: elem.width(), + height: elem.height(), + offset: { top: 0, left: 0 } + }; + } + if ( isWindow( raw ) ) { + return { + width: elem.width(), + height: elem.height(), + offset: { top: elem.scrollTop(), left: elem.scrollLeft() } + }; + } + if ( raw.preventDefault ) { + return { + width: 0, + height: 0, + offset: { top: raw.pageY, left: raw.pageX } + }; + } + return { + width: elem.outerWidth(), + height: elem.outerHeight(), + offset: elem.offset() + }; +} + +$.position = { + scrollbarWidth: function() { + if ( cachedScrollbarWidth !== undefined ) { + return cachedScrollbarWidth; + } + var w1, w2, + div = $( "
" + + "
" ), + innerDiv = div.children()[ 0 ]; + + $( "body" ).append( div ); + w1 = innerDiv.offsetWidth; + div.css( "overflow", "scroll" ); + + w2 = innerDiv.offsetWidth; + + if ( w1 === w2 ) { + w2 = div[ 0 ].clientWidth; + } + + div.remove(); + + return ( cachedScrollbarWidth = w1 - w2 ); + }, + getScrollInfo: function( within ) { + var overflowX = within.isWindow || within.isDocument ? "" : + within.element.css( "overflow-x" ), + overflowY = within.isWindow || within.isDocument ? "" : + within.element.css( "overflow-y" ), + hasOverflowX = overflowX === "scroll" || + ( overflowX === "auto" && within.width < within.element[ 0 ].scrollWidth ), + hasOverflowY = overflowY === "scroll" || + ( overflowY === "auto" && within.height < within.element[ 0 ].scrollHeight ); + return { + width: hasOverflowY ? $.position.scrollbarWidth() : 0, + height: hasOverflowX ? $.position.scrollbarWidth() : 0 + }; + }, + getWithinInfo: function( element ) { + var withinElement = $( element || window ), + isElemWindow = isWindow( withinElement[ 0 ] ), + isDocument = !!withinElement[ 0 ] && withinElement[ 0 ].nodeType === 9, + hasOffset = !isElemWindow && !isDocument; + return { + element: withinElement, + isWindow: isElemWindow, + isDocument: isDocument, + offset: hasOffset ? $( element ).offset() : { left: 0, top: 0 }, + scrollLeft: withinElement.scrollLeft(), + scrollTop: withinElement.scrollTop(), + width: withinElement.outerWidth(), + height: withinElement.outerHeight() + }; + } +}; + +$.fn.position = function( options ) { + if ( !options || !options.of ) { + return _position.apply( this, arguments ); + } + + // Make a copy, we don't want to modify arguments + options = $.extend( {}, options ); + + var atOffset, targetWidth, targetHeight, targetOffset, basePosition, dimensions, + + // Make sure string options are treated as CSS selectors + target = typeof options.of === "string" ? + $( document ).find( options.of ) : + $( options.of ), + + within = $.position.getWithinInfo( options.within ), + scrollInfo = $.position.getScrollInfo( within ), + collision = ( options.collision || "flip" ).split( " " ), + offsets = {}; + + dimensions = getDimensions( target ); + if ( target[ 0 ].preventDefault ) { + + // Force left top to allow flipping + options.at = "left top"; + } + targetWidth = dimensions.width; + targetHeight = dimensions.height; + targetOffset = dimensions.offset; + + // Clone to reuse original targetOffset later + basePosition = $.extend( {}, targetOffset ); + + // Force my and at to have valid horizontal and vertical positions + // if a value is missing or invalid, it will be converted to center + $.each( [ "my", "at" ], function() { + var pos = ( options[ this ] || "" ).split( " " ), + horizontalOffset, + verticalOffset; + + if ( pos.length === 1 ) { + pos = rhorizontal.test( pos[ 0 ] ) ? + pos.concat( [ "center" ] ) : + rvertical.test( pos[ 0 ] ) ? + [ "center" ].concat( pos ) : + [ "center", "center" ]; + } + pos[ 0 ] = rhorizontal.test( pos[ 0 ] ) ? pos[ 0 ] : "center"; + pos[ 1 ] = rvertical.test( pos[ 1 ] ) ? pos[ 1 ] : "center"; + + // Calculate offsets + horizontalOffset = roffset.exec( pos[ 0 ] ); + verticalOffset = roffset.exec( pos[ 1 ] ); + offsets[ this ] = [ + horizontalOffset ? horizontalOffset[ 0 ] : 0, + verticalOffset ? verticalOffset[ 0 ] : 0 + ]; + + // Reduce to just the positions without the offsets + options[ this ] = [ + rposition.exec( pos[ 0 ] )[ 0 ], + rposition.exec( pos[ 1 ] )[ 0 ] + ]; + } ); + + // Normalize collision option + if ( collision.length === 1 ) { + collision[ 1 ] = collision[ 0 ]; + } + + if ( options.at[ 0 ] === "right" ) { + basePosition.left += targetWidth; + } else if ( options.at[ 0 ] === "center" ) { + basePosition.left += targetWidth / 2; + } + + if ( options.at[ 1 ] === "bottom" ) { + basePosition.top += targetHeight; + } else if ( options.at[ 1 ] === "center" ) { + basePosition.top += targetHeight / 2; + } + + atOffset = getOffsets( offsets.at, targetWidth, targetHeight ); + basePosition.left += atOffset[ 0 ]; + basePosition.top += atOffset[ 1 ]; + + return this.each( function() { + var collisionPosition, using, + elem = $( this ), + elemWidth = elem.outerWidth(), + elemHeight = elem.outerHeight(), + marginLeft = parseCss( this, "marginLeft" ), + marginTop = parseCss( this, "marginTop" ), + collisionWidth = elemWidth + marginLeft + parseCss( this, "marginRight" ) + + scrollInfo.width, + collisionHeight = elemHeight + marginTop + parseCss( this, "marginBottom" ) + + scrollInfo.height, + position = $.extend( {}, basePosition ), + myOffset = getOffsets( offsets.my, elem.outerWidth(), elem.outerHeight() ); + + if ( options.my[ 0 ] === "right" ) { + position.left -= elemWidth; + } else if ( options.my[ 0 ] === "center" ) { + position.left -= elemWidth / 2; + } + + if ( options.my[ 1 ] === "bottom" ) { + position.top -= elemHeight; + } else if ( options.my[ 1 ] === "center" ) { + position.top -= elemHeight / 2; + } + + position.left += myOffset[ 0 ]; + position.top += myOffset[ 1 ]; + + collisionPosition = { + marginLeft: marginLeft, + marginTop: marginTop + }; + + $.each( [ "left", "top" ], function( i, dir ) { + if ( $.ui.position[ collision[ i ] ] ) { + $.ui.position[ collision[ i ] ][ dir ]( position, { + targetWidth: targetWidth, + targetHeight: targetHeight, + elemWidth: elemWidth, + elemHeight: elemHeight, + collisionPosition: collisionPosition, + collisionWidth: collisionWidth, + collisionHeight: collisionHeight, + offset: [ atOffset[ 0 ] + myOffset[ 0 ], atOffset [ 1 ] + myOffset[ 1 ] ], + my: options.my, + at: options.at, + within: within, + elem: elem + } ); + } + } ); + + if ( options.using ) { + + // Adds feedback as second argument to using callback, if present + using = function( props ) { + var left = targetOffset.left - position.left, + right = left + targetWidth - elemWidth, + top = targetOffset.top - position.top, + bottom = top + targetHeight - elemHeight, + feedback = { + target: { + element: target, + left: targetOffset.left, + top: targetOffset.top, + width: targetWidth, + height: targetHeight + }, + element: { + element: elem, + left: position.left, + top: position.top, + width: elemWidth, + height: elemHeight + }, + horizontal: right < 0 ? "left" : left > 0 ? "right" : "center", + vertical: bottom < 0 ? "top" : top > 0 ? "bottom" : "middle" + }; + if ( targetWidth < elemWidth && abs( left + right ) < targetWidth ) { + feedback.horizontal = "center"; + } + if ( targetHeight < elemHeight && abs( top + bottom ) < targetHeight ) { + feedback.vertical = "middle"; + } + if ( max( abs( left ), abs( right ) ) > max( abs( top ), abs( bottom ) ) ) { + feedback.important = "horizontal"; + } else { + feedback.important = "vertical"; + } + options.using.call( this, props, feedback ); + }; + } + + elem.offset( $.extend( position, { using: using } ) ); + } ); +}; + +$.ui.position = { + fit: { + left: function( position, data ) { + var within = data.within, + withinOffset = within.isWindow ? within.scrollLeft : within.offset.left, + outerWidth = within.width, + collisionPosLeft = position.left - data.collisionPosition.marginLeft, + overLeft = withinOffset - collisionPosLeft, + overRight = collisionPosLeft + data.collisionWidth - outerWidth - withinOffset, + newOverRight; + + // Element is wider than within + if ( data.collisionWidth > outerWidth ) { + + // Element is initially over the left side of within + if ( overLeft > 0 && overRight <= 0 ) { + newOverRight = position.left + overLeft + data.collisionWidth - outerWidth - + withinOffset; + position.left += overLeft - newOverRight; + + // Element is initially over right side of within + } else if ( overRight > 0 && overLeft <= 0 ) { + position.left = withinOffset; + + // Element is initially over both left and right sides of within + } else { + if ( overLeft > overRight ) { + position.left = withinOffset + outerWidth - data.collisionWidth; + } else { + position.left = withinOffset; + } + } + + // Too far left -> align with left edge + } else if ( overLeft > 0 ) { + position.left += overLeft; + + // Too far right -> align with right edge + } else if ( overRight > 0 ) { + position.left -= overRight; + + // Adjust based on position and margin + } else { + position.left = max( position.left - collisionPosLeft, position.left ); + } + }, + top: function( position, data ) { + var within = data.within, + withinOffset = within.isWindow ? within.scrollTop : within.offset.top, + outerHeight = data.within.height, + collisionPosTop = position.top - data.collisionPosition.marginTop, + overTop = withinOffset - collisionPosTop, + overBottom = collisionPosTop + data.collisionHeight - outerHeight - withinOffset, + newOverBottom; + + // Element is taller than within + if ( data.collisionHeight > outerHeight ) { + + // Element is initially over the top of within + if ( overTop > 0 && overBottom <= 0 ) { + newOverBottom = position.top + overTop + data.collisionHeight - outerHeight - + withinOffset; + position.top += overTop - newOverBottom; + + // Element is initially over bottom of within + } else if ( overBottom > 0 && overTop <= 0 ) { + position.top = withinOffset; + + // Element is initially over both top and bottom of within + } else { + if ( overTop > overBottom ) { + position.top = withinOffset + outerHeight - data.collisionHeight; + } else { + position.top = withinOffset; + } + } + + // Too far up -> align with top + } else if ( overTop > 0 ) { + position.top += overTop; + + // Too far down -> align with bottom edge + } else if ( overBottom > 0 ) { + position.top -= overBottom; + + // Adjust based on position and margin + } else { + position.top = max( position.top - collisionPosTop, position.top ); + } + } + }, + flip: { + left: function( position, data ) { + var within = data.within, + withinOffset = within.offset.left + within.scrollLeft, + outerWidth = within.width, + offsetLeft = within.isWindow ? within.scrollLeft : within.offset.left, + collisionPosLeft = position.left - data.collisionPosition.marginLeft, + overLeft = collisionPosLeft - offsetLeft, + overRight = collisionPosLeft + data.collisionWidth - outerWidth - offsetLeft, + myOffset = data.my[ 0 ] === "left" ? + -data.elemWidth : + data.my[ 0 ] === "right" ? + data.elemWidth : + 0, + atOffset = data.at[ 0 ] === "left" ? + data.targetWidth : + data.at[ 0 ] === "right" ? + -data.targetWidth : + 0, + offset = -2 * data.offset[ 0 ], + newOverRight, + newOverLeft; + + if ( overLeft < 0 ) { + newOverRight = position.left + myOffset + atOffset + offset + data.collisionWidth - + outerWidth - withinOffset; + if ( newOverRight < 0 || newOverRight < abs( overLeft ) ) { + position.left += myOffset + atOffset + offset; + } + } else if ( overRight > 0 ) { + newOverLeft = position.left - data.collisionPosition.marginLeft + myOffset + + atOffset + offset - offsetLeft; + if ( newOverLeft > 0 || abs( newOverLeft ) < overRight ) { + position.left += myOffset + atOffset + offset; + } + } + }, + top: function( position, data ) { + var within = data.within, + withinOffset = within.offset.top + within.scrollTop, + outerHeight = within.height, + offsetTop = within.isWindow ? within.scrollTop : within.offset.top, + collisionPosTop = position.top - data.collisionPosition.marginTop, + overTop = collisionPosTop - offsetTop, + overBottom = collisionPosTop + data.collisionHeight - outerHeight - offsetTop, + top = data.my[ 1 ] === "top", + myOffset = top ? + -data.elemHeight : + data.my[ 1 ] === "bottom" ? + data.elemHeight : + 0, + atOffset = data.at[ 1 ] === "top" ? + data.targetHeight : + data.at[ 1 ] === "bottom" ? + -data.targetHeight : + 0, + offset = -2 * data.offset[ 1 ], + newOverTop, + newOverBottom; + if ( overTop < 0 ) { + newOverBottom = position.top + myOffset + atOffset + offset + data.collisionHeight - + outerHeight - withinOffset; + if ( newOverBottom < 0 || newOverBottom < abs( overTop ) ) { + position.top += myOffset + atOffset + offset; + } + } else if ( overBottom > 0 ) { + newOverTop = position.top - data.collisionPosition.marginTop + myOffset + atOffset + + offset - offsetTop; + if ( newOverTop > 0 || abs( newOverTop ) < overBottom ) { + position.top += myOffset + atOffset + offset; + } + } + } + }, + flipfit: { + left: function() { + $.ui.position.flip.left.apply( this, arguments ); + $.ui.position.fit.left.apply( this, arguments ); + }, + top: function() { + $.ui.position.flip.top.apply( this, arguments ); + $.ui.position.fit.top.apply( this, arguments ); + } + } +}; + +} )(); + +var position = $.ui.position; + + +/*! + * jQuery UI Keycode 1.13.0 + * http://jqueryui.com + * + * Copyright jQuery Foundation and other contributors + * Released under the MIT license. + * http://jquery.org/license + */ + +//>>label: Keycode +//>>group: Core +//>>description: Provide keycodes as keynames +//>>docs: http://api.jqueryui.com/jQuery.ui.keyCode/ + + +var keycode = $.ui.keyCode = { + BACKSPACE: 8, + COMMA: 188, + DELETE: 46, + DOWN: 40, + END: 35, + ENTER: 13, + ESCAPE: 27, + HOME: 36, + LEFT: 37, + PAGE_DOWN: 34, + PAGE_UP: 33, + PERIOD: 190, + RIGHT: 39, + SPACE: 32, + TAB: 9, + UP: 38 +}; + + +/*! + * jQuery UI Unique ID 1.13.0 + * http://jqueryui.com + * + * Copyright jQuery Foundation and other contributors + * Released under the MIT license. + * http://jquery.org/license + */ + +//>>label: uniqueId +//>>group: Core +//>>description: Functions to generate and remove uniqueId's +//>>docs: http://api.jqueryui.com/uniqueId/ + + +var uniqueId = $.fn.extend( { + uniqueId: ( function() { + var uuid = 0; + + return function() { + return this.each( function() { + if ( !this.id ) { + this.id = "ui-id-" + ( ++uuid ); + } + } ); + }; + } )(), + + removeUniqueId: function() { + return this.each( function() { + if ( /^ui-id-\d+$/.test( this.id ) ) { + $( this ).removeAttr( "id" ); + } + } ); + } +} ); + + + +var safeActiveElement = $.ui.safeActiveElement = function( document ) { + var activeElement; + + // Support: IE 9 only + // IE9 throws an "Unspecified error" accessing document.activeElement from an