A javascript library that allows using extended CSS selectors (:has, :contains, etc)
目前為
此腳本不應該直接安裝，它是一個供其他腳本使用的函式庫。欲使用本函式庫，請在腳本 metadata 寫上： // @require https://update.gf.qytechs.cn/scripts/452263/1099366/extended-css.js
// ==UserScript==
// @name extended-css
// @name:zh extended-css
// @name:zh-CN extended-css
// @name:zh_CN extended-css
// @version 1.3.16
// @namespace https://adguard.com/
// @author AdguardTeam
// @contributor AdguardTeam
// @contributors AdguardTeam
// @developer AdguardTeam
// @copyright GPL-3.0
// @license GPL-3.0
// @description A javascript library that allows using extended CSS selectors (:has, :contains, etc)
// @description:zh 一个让用户可以使用扩展 CSS 选择器的库
// @description:zh-CN 一个让用户可以使用扩展 CSS 选择器的库
// @description:zh_CN 一个让用户可以使用扩展 CSS 选择器的库
// @homepage https://github.com/AdguardTeam/ExtendedCss
// @homepageURL https://github.com/AdguardTeam/ExtendedCss
// ==/UserScript==
/*! extended-css - v1.3.16 - Thu Sep 15 2022
* https://github.com/AdguardTeam/ExtendedCss
* Copyright (c) 2022 AdGuard. Licensed GPL-3.0
*/
var ExtendedCss = (function () {
'use strict';
function _typeof(obj) {
"@babel/helpers - typeof";
if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") {
_typeof = function (obj) {
return typeof obj;
};
} else {
_typeof = function (obj) {
return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj;
};
}
return _typeof(obj);
}
function _slicedToArray(arr, i) {
return _arrayWithHoles(arr) || _iterableToArrayLimit(arr, i) || _unsupportedIterableToArray(arr, i) || _nonIterableRest();
}
function _toConsumableArray(arr) {
return _arrayWithoutHoles(arr) || _iterableToArray(arr) || _unsupportedIterableToArray(arr) || _nonIterableSpread();
}
function _arrayWithoutHoles(arr) {
if (Array.isArray(arr)) return _arrayLikeToArray(arr);
}
function _arrayWithHoles(arr) {
if (Array.isArray(arr)) return arr;
}
function _iterableToArray(iter) {
if (typeof Symbol !== "undefined" && Symbol.iterator in Object(iter)) return Array.from(iter);
}
function _iterableToArrayLimit(arr, i) {
if (typeof Symbol === "undefined" || !(Symbol.iterator in Object(arr))) return;
var _arr = [];
var _n = true;
var _d = false;
var _e = undefined;
try {
for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) {
_arr.push(_s.value);
if (i && _arr.length === i) break;
}
} catch (err) {
_d = true;
_e = err;
} finally {
try {
if (!_n && _i["return"] != null) _i["return"]();
} finally {
if (_d) throw _e;
}
}
return _arr;
}
function _unsupportedIterableToArray(o, minLen) {
if (!o) return;
if (typeof o === "string") return _arrayLikeToArray(o, minLen);
var n = Object.prototype.toString.call(o).slice(8, -1);
if (n === "Object" && o.constructor) n = o.constructor.name;
if (n === "Map" || n === "Set") return Array.from(o);
if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen);
}
function _arrayLikeToArray(arr, len) {
if (len == null || len > arr.length) len = arr.length;
for (var i = 0, arr2 = new Array(len); i < len; i++) arr2[i] = arr[i];
return arr2;
}
function _nonIterableSpread() {
throw new TypeError("Invalid attempt to spread non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.");
}
function _nonIterableRest() {
throw new TypeError("Invalid attempt to destructure non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.");
}
/**
* Copyright 2016 Adguard Software Ltd
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/* eslint-disable no-console */
var utils = {};
utils.MutationObserver = window.MutationObserver || window.WebKitMutationObserver;
/**
* Stores native Node textContent getter to be used for contains pseudo-class
* because elements' 'textContent' and 'innerText' properties might be mocked
* https://github.com/AdguardTeam/ExtendedCss/issues/127
*/
utils.nodeTextContentGetter = function () {
var nativeNode = window.Node || Node;
return Object.getOwnPropertyDescriptor(nativeNode.prototype, 'textContent').get;
}();
utils.isSafariBrowser = function () {
return navigator.vendor === 'Apple Computer, Inc.';
}();
/**
* Converts regular expressions passed as pseudo class arguments into RegExp instances.
* Have to unescape doublequote " as well, because we escape them while enclosing such
* arguments with doublequotes, and sizzle does not automatically unescapes them.
*/
utils.pseudoArgToRegex = function (regexSrc, flag) {
flag = flag || 'i';
regexSrc = regexSrc.trim().replace(/\\(["\\])/g, '$1');
return new RegExp(regexSrc, flag);
};
/**
* Converts string to the regexp
* @param {string} str
* @returns {RegExp}
*/
utils.toRegExp = function (str) {
if (str[0] === '/' && str[str.length - 1] === '/') {
return new RegExp(str.slice(1, -1));
}
var escaped = str.replace(/[.*+?^${}()|[\]\\]/g, '\\$&');
return new RegExp(escaped);
};
utils.startsWith = function (str, prefix) {
// if str === '', (str && false) will return ''
// that's why it has to be !!str
return !!str && str.indexOf(prefix) === 0;
};
utils.endsWith = function (str, postfix) {
if (!str || !postfix) {
return false;
}
if (str.endsWith) {
return str.endsWith(postfix);
}
var t = String(postfix);
var index = str.lastIndexOf(t);
return index >= 0 && index === str.length - t.length;
};
/**
* Helper function for creating regular expression from a url filter rule syntax.
*/
utils.createURLRegex = function () {
// Constants
var regexConfiguration = {
maskStartUrl: '||',
maskPipe: '|',
maskSeparator: '^',
maskAnySymbol: '*',
regexAnySymbol: '.*',
regexSeparator: '([^ a-zA-Z0-9.%_-]|$)',
regexStartUrl: '^(http|https|ws|wss)://([a-z0-9-_.]+\\.)?',
regexStartString: '^',
regexEndString: '$'
}; // https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/regexp
// should be escaped . * + ? ^ $ { } ( ) | [ ] / \
// except of * | ^
var specials = ['.', '+', '?', '$', '{', '}', '(', ')', '[', ']', '\\', '/'];
var specialsRegex = new RegExp("[".concat(specials.join('\\'), "]"), 'g');
/**
* Escapes regular expression string
*/
var escapeRegExp = function escapeRegExp(str) {
return str.replace(specialsRegex, '\\$&');
};
var replaceAll = function replaceAll(str, find, replace) {
if (!str) {
return str;
}
return str.split(find).join(replace);
};
/**
* Main function that converts a url filter rule string to a regex.
* @param {string} str
* @return {RegExp}
*/
var createRegexText = function createRegexText(str) {
var regex = escapeRegExp(str);
if (utils.startsWith(regex, regexConfiguration.maskStartUrl)) {
regex = regex.substring(0, regexConfiguration.maskStartUrl.length) + replaceAll(regex.substring(regexConfiguration.maskStartUrl.length, regex.length - 1), '\|', '\\|') + regex.substring(regex.length - 1);
} else if (utils.startsWith(regex, regexConfiguration.maskPipe)) {
regex = regex.substring(0, regexConfiguration.maskPipe.length) + replaceAll(regex.substring(regexConfiguration.maskPipe.length, regex.length - 1), '\|', '\\|') + regex.substring(regex.length - 1);
} else {
regex = replaceAll(regex.substring(0, regex.length - 1), '\|', '\\|') + regex.substring(regex.length - 1);
} // Replacing special url masks
regex = replaceAll(regex, regexConfiguration.maskAnySymbol, regexConfiguration.regexAnySymbol);
regex = replaceAll(regex, regexConfiguration.maskSeparator, regexConfiguration.regexSeparator);
if (utils.startsWith(regex, regexConfiguration.maskStartUrl)) {
regex = regexConfiguration.regexStartUrl + regex.substring(regexConfiguration.maskStartUrl.length);
} else if (utils.startsWith(regex, regexConfiguration.maskPipe)) {
regex = regexConfiguration.regexStartString + regex.substring(regexConfiguration.maskPipe.length);
}
if (utils.endsWith(regex, regexConfiguration.maskPipe)) {
regex = regex.substring(0, regex.length - 1) + regexConfiguration.regexEndString;
}
return new RegExp(regex, 'i');
};
return createRegexText;
}();
/**
* Creates an object implementing Location interface from a url.
* An alternative to URL.
* https://github.com/AdguardTeam/FingerprintingBlocker/blob/master/src/shared/url.ts#L64
*/
utils.createLocation = function (href) {
var anchor = document.createElement('a');
anchor.href = href;
if (anchor.host === '') {
anchor.href = anchor.href; // eslint-disable-line no-self-assign
}
return anchor;
};
/**
* Checks whether A has the same origin as B.
* @param {string} urlA location.href of A.
* @param {Location} locationB location of B.
* @param {string} domainB document.domain of B.
* @return {boolean}
*/
utils.isSameOrigin = function (urlA, locationB, domainB) {
var locationA = utils.createLocation(urlA); // eslint-disable-next-line no-script-url
if (locationA.protocol === 'javascript:' || locationA.href === 'about:blank') {
return true;
}
if (locationA.protocol === 'data:' || locationA.protocol === 'file:') {
return false;
}
return locationA.hostname === domainB && locationA.port === locationB.port && locationA.protocol === locationB.protocol;
};
/**
* A helper class to throttle function calls with setTimeout and requestAnimationFrame.
*/
utils.AsyncWrapper = function () {
var supported = typeof window.requestAnimationFrame !== 'undefined';
var rAF = supported ? requestAnimationFrame : setTimeout;
var cAF = supported ? cancelAnimationFrame : clearTimeout;
var perf = supported ? performance : Date;
/**
* @param {Function} callback
* @param {number} throttle number, the provided callback should be executed twice
* in this time frame.
* @constructor
*/
function AsyncWrapper(callback, throttle) {
this.callback = callback;
this.throttle = throttle;
this.wrappedCallback = this.wrappedCallback.bind(this);
if (this.wrappedAsapCallback) {
this.wrappedAsapCallback = this.wrappedAsapCallback.bind(this);
}
}
/** @private */
AsyncWrapper.prototype.wrappedCallback = function (ts) {
this.lastRun = isNumber(ts) ? ts : perf.now();
delete this.rAFid;
delete this.timerId;
delete this.asapScheduled;
this.callback();
};
/** @private Indicates whether there is a scheduled callback. */
AsyncWrapper.prototype.hasPendingCallback = function () {
return isNumber(this.rAFid) || isNumber(this.timerId);
};
/**
* Schedules a function call before the next animation frame.
*/
AsyncWrapper.prototype.run = function () {
if (this.hasPendingCallback()) {
// There is a pending execution scheduled.
return;
}
if (typeof this.lastRun !== 'undefined') {
var elapsed = perf.now() - this.lastRun;
if (elapsed < this.throttle) {
this.timerId = setTimeout(this.wrappedCallback, this.throttle - elapsed);
return;
}
}
this.rAFid = rAF(this.wrappedCallback);
};
/**
* Schedules a function call in the most immenent microtask.
* This cannot be canceled.
*/
AsyncWrapper.prototype.runAsap = function () {
if (this.asapScheduled) {
return;
}
this.asapScheduled = true;
cAF(this.rAFid);
clearTimeout(this.timerId);
if (utils.MutationObserver) {
/**
* Using MutationObservers to access microtask queue is a standard technique,
* used in ASAP library
* {@link https://github.com/kriskowal/asap/blob/master/browser-raw.js#L140}
*/
if (!this.mo) {
this.mo = new utils.MutationObserver(this.wrappedCallback);
this.node = document.createTextNode(1);
this.mo.observe(this.node, {
characterData: true
});
}
this.node.nodeValue = -this.node.nodeValue;
} else {
setTimeout(this.wrappedCallback);
}
};
/**
* Runs scheduled execution immediately, if there were any.
*/
AsyncWrapper.prototype.runImmediately = function () {
if (this.hasPendingCallback()) {
cAF(this.rAFid);
clearTimeout(this.timerId);
delete this.rAFid;
delete this.timerId;
this.wrappedCallback();
}
};
AsyncWrapper.now = function () {
return perf.now();
};
return AsyncWrapper;
}();
/**
* Stores native OdP to be used in WeakMap and Set polyfills.
*/
utils.defineProperty = Object.defineProperty;
utils.WeakMap = typeof WeakMap !== 'undefined' ? WeakMap : function () {
/** Originally based on {@link https://github.com/Polymer/WeakMap} */
var counter = Date.now() % 1e9;
var WeakMap = function WeakMap() {
this.name = "__st".concat(Math.random() * 1e9 >>> 0).concat(counter++, "__");
};
WeakMap.prototype = {
set: function set(key, value) {
var entry = key[this.name];
if (entry && entry[0] === key) {
entry[1] = value;
} else {
utils.defineProperty(key, this.name, {
value: [key, value],
writable: true
});
}
return this;
},
get: function get(key) {
var entry = key[this.name];
return entry && entry[0] === key ? entry[1] : undefined;
},
delete: function _delete(key) {
var entry = key[this.name];
if (!entry) {
return false;
}
var hasValue = entry[0] === key;
delete entry[0];
delete entry[1];
return hasValue;
},
has: function has(key) {
var entry = key[this.name];
if (!entry) {
return false;
}
return entry[0] === key;
}
};
return WeakMap;
}();
utils.Set = typeof Set !== 'undefined' ? Set : function () {
var counter = Date.now() % 1e9;
/**
* A polyfill which covers only the basic usage.
* Only supports methods that are supported in IE11.
* {@link https://docs.microsoft.com/en-us/scripting/javascript/reference/set-object-javascript}
* Assumes that 'key's are all objects, not primitives such as a number.
*
* @param {Array} items Initial items in this set
*/
var Set = function Set(items) {
this.name = "__st".concat(Math.random() * 1e9 >>> 0).concat(counter++, "__");
this.keys = [];
if (items && items.length) {
var iItems = items.length;
while (iItems--) {
this.add(items[iItems]);
}
}
};
Set.prototype = {
add: function add(key) {
if (!isNumber(key[this.name])) {
var index = this.keys.push(key) - 1;
utils.defineProperty(key, this.name, {
value: index,
writable: true
});
}
},
delete: function _delete(key) {
if (isNumber(key[this.name])) {
var index = key[this.name];
delete this.keys[index];
key[this.name] = undefined;
}
},
has: function has(key) {
return isNumber(key[this.name]);
},
clear: function clear() {
this.keys.forEach(function (key) {
key[this.name] = undefined;
});
this.keys.length = 0;
},
forEach: function forEach(cb) {
var that = this;
this.keys.forEach(function (value) {
cb(value, value, that);
});
}
};
utils.defineProperty(Set.prototype, 'size', {
get: function get() {
// Skips holes.
return this.keys.reduce(function (acc) {
return acc + 1;
}, 0);
}
});
return Set;
}();
/**
* Vendor-specific Element.prototype.matches
*/
utils.matchesPropertyName = function () {
var props = ['matches', 'matchesSelector', 'mozMatchesSelector', 'msMatchesSelector', 'oMatchesSelector', 'webkitMatchesSelector'];
for (var i = 0; i < 6; i++) {
if (Element.prototype.hasOwnProperty(props[i])) {
return props[i];
}
}
}();
/**
* Provides stats information
*/
utils.Stats = function () {
/** @member {Array<number>} */
this.array = [];
/** @member {number} */
this.length = 0;
var zeroDescriptor = {
value: 0,
writable: true
};
/** @member {number} @private */
Object.defineProperty(this, 'sum', zeroDescriptor);
/** @member {number} @private */
Object.defineProperty(this, 'squaredSum', zeroDescriptor);
};
/**
* @param {number} dataPoint data point
*/
utils.Stats.prototype.push = function (dataPoint) {
this.array.push(dataPoint);
this.length++;
this.sum += dataPoint;
this.squaredSum += dataPoint * dataPoint;
/** @member {number} */
this.mean = this.sum / this.length;
/** @member {number} */
// eslint-disable-next-line no-restricted-properties
this.stddev = Math.sqrt(this.squaredSum / this.length - Math.pow(this.mean, 2));
};
/** Safe console.error version */
utils.logError = typeof console !== 'undefined' && console.error && Function.prototype.bind && console.error.bind ? console.error.bind(window.console) : console.error;
/** Safe console.info version */
utils.logInfo = typeof console !== 'undefined' && console.info && Function.prototype.bind && console.info.bind ? console.info.bind(window.console) : console.info;
function isNumber(obj) {
return typeof obj === 'number';
}
/**
* Returns path to element we will use as element identifier
* @param {Element} inputEl
* @returns {string} - path to the element
*/
utils.getNodeSelector = function (inputEl) {
if (!(inputEl instanceof Element)) {
throw new Error('Function received argument with wrong type');
}
var el = inputEl;
var path = []; // we need to check '!!el' first because it is possible
// that some ancestor of the inputEl was removed before it
while (!!el && el.nodeType === Node.ELEMENT_NODE) {
var selector = el.nodeName.toLowerCase();
if (el.id && typeof el.id === 'string') {
selector += "#".concat(el.id);
path.unshift(selector);
break;
} else {
var sibling = el;
var nth = 1;
while (sibling.previousSibling) {
sibling = sibling.previousSibling;
if (sibling.nodeType === Node.ELEMENT_NODE && sibling.nodeName.toLowerCase() === selector) {
nth++;
}
}
if (nth !== 1) {
selector += ":nth-of-type(".concat(nth, ")");
}
}
path.unshift(selector);
el = el.parentNode;
}
return path.join(' > ');
};
/**
* Copyright 2016 Adguard Software Ltd
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/**
* Helper class css utils
*
* @type {{normalize}}
*/
var cssUtils = function () {
/**
* Regex that matches AdGuard's backward compatible syntaxes.
*/
var reAttrFallback = /\[-(?:ext|abp)-([a-z-_]+)=(["'])((?:(?=(\\?))\4.)*?)\2\]/g;
/**
* Complex replacement function.
* Unescapes quote characters inside of an extended selector.
*
* @param match Whole matched string
* @param name Group 1
* @param quoteChar Group 2
* @param value Group 3
*/
var evaluateMatch = function evaluateMatch(match, name, quoteChar, value) {
// Unescape quotes
var re = new RegExp("([^\\\\]|^)\\\\".concat(quoteChar), 'g');
value = value.replace(re, "$1".concat(quoteChar));
return ":".concat(name, "(").concat(value, ")");
}; // Sizzle's parsing of pseudo class arguments is buggy on certain circumstances
// We support following form of arguments:
// 1. for :matches-css, those of a form {propertyName}: /.*/
// 2. for :contains, those of a form /.*/
// We transform such cases in a way that Sizzle has no ambiguity in parsing arguments.
var reMatchesCss = /\:(matches-css(?:-after|-before)?)\(([a-z-\s]*\:\s*\/(?:\\.|[^\/])*?\/\s*)\)/g;
var reContains = /:(?:-abp-)?(contains|has-text)\((\s*\/(?:\\.|[^\/])*?\/\s*)\)/g;
var reScope = /\(\:scope >/g; // Note that we require `/` character in regular expressions to be escaped.
/**
* Used for pre-processing pseudo-classes values with above two regexes.
*/
var addQuotes = function addQuotes(_, c1, c2) {
return ":".concat(c1, "(\"").concat(c2.replace(/["\\]/g, '\\$&'), "\")");
};
var SCOPE_REPLACER = '(>';
/**
* Normalizes specified css text in a form that can be parsed by the
* Sizzle engine.
* Normalization means
* 1. transforming [-ext-*=""] attributes to pseudo classes
* 2. enclosing possibly ambiguous arguments of `:contains`,
* `:matches-css` pseudo classes with quotes.
* @param {string} cssText
* @return {string}
*/
var normalize = function normalize(cssText) {
var normalizedCssText = cssText.replace(reAttrFallback, evaluateMatch).replace(reMatchesCss, addQuotes).replace(reContains, addQuotes).replace(reScope, SCOPE_REPLACER);
return normalizedCssText;
};
var isSimpleSelectorValid = function isSimpleSelectorValid(selector) {
try {
document.querySelectorAll(selector);
} catch (e) {
return false;
}
return true;
};
return {
normalize: normalize,
isSimpleSelectorValid: isSimpleSelectorValid
};
}();
/*!
* Sizzle CSS Selector Engine v2.3.4-pre-adguard
* https://sizzlejs.com/
*
* Copyright JS Foundation and other contributors
* Released under the MIT license
* https://js.foundation/
*
* Date: 2020-08-04
*/
/**
* Version of Sizzle patched by AdGuard in order to be used in the ExtendedCss module.
* https://github.com/AdguardTeam/sizzle-extcss
*
* Look for [AdGuard Patch] and ADGUARD_EXTCSS markers to find out what exactly was changed by us.
*
* Global changes:
* 1. Added additional parameters to the "Sizzle.tokenize" method so that it can be used for stylesheets parsing and validation.
* 2. Added tokens re-sorting mechanism forcing slow pseudos to be matched last (see sortTokenGroups).
* 3. Fix the nonnativeSelectorCache caching -- there was no value corresponding to a key.
* 4. Added Sizzle.compile call to the `:has` pseudo definition.
*
* Changes that are applied to the ADGUARD_EXTCSS build only:
* 1. Do not expose Sizzle to the global scope. Initialize it lazily via initializeSizzle().
* 2. Removed :contains pseudo declaration -- its syntax is changed and declared outside of Sizzle.
* 3. Removed declarations for the following non-standard pseudo classes:
* :parent, :header, :input, :button, :text, :first, :last, :eq,
* :even, :odd, :lt, :gt, :nth, :radio, :checkbox, :file,
* :password, :image, :submit, :reset
* 4. Added es6 module export
*/
var Sizzle;
/**
* Initializes Sizzle object.
* In the case of AdGuard ExtendedCss we want to avoid initializing Sizzle right away
* and exposing it to the global scope.
*/
var initializeSizzle = function initializeSizzle() {
// jshint ignore:line
if (!Sizzle) {
//<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
Sizzle = function (window) {
var 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 sortOrder(a, b) {
if (a === b) {
hasDuplicate = true;
}
return 0;
},
// Instance methods
hasOwn = {}.hasOwnProperty,
arr = [],
pop = arr.pop,
push_native = 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 indexOf(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]",
// http://www.w3.org/TR/CSS21/syndata.html#value-def-identifier
identifier = "(?:\\\\.|[\\w-]|[^\0-\\xa0])+",
// 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 + "*"),
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")
},
rnative = /^[^{]+\{\s*\[native \w/,
// Easily-parseable/retrievable ID or TAG or CLASS selectors
rquickExpr = /^(?:#([\w-]+)|(\w+)|\.([\w-]+))$/,
rsibling = /[+~]/,
// CSS escapes
// http://www.w3.org/TR/CSS21/syndata.html#escaped-characters
runescape = new RegExp("\\\\([\\da-f]{1,6}" + whitespace + "?|(" + whitespace + ")|.)", "ig"),
funescape = function funescape(_, escaped, escapedWhitespace) {
var high = "0x" + escaped - 0x10000; // NaN means non-codepoint
// Support: Firefox<24
// Workaround erroneous numeric interpretation of +"0x"
return high !== high || escapedWhitespace ? escaped : high < 0 ? // BMP codepoint
String.fromCharCode(high + 0x10000) : // Supplemental Plane codepoint (surrogate pair)
String.fromCharCode(high >> 10 | 0xD800, high & 0x3FF | 0xDC00);
},
// CSS string/identifier serialization
// https://drafts.csswg.org/cssom/#common-serializing-idioms
rcssescape = /([\0-\x1f\x7f]|^-?\d)|^-$|[^\0-\x1f\x7f-\uFFFF\w-]/g,
fcssescape = function fcssescape(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 unloadHandler() {
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
arr[preferredDoc.childNodes.length].nodeType;
} catch (e) {
push = {
apply: arr.length ? // Leverage slice if possible
function (target, els) {
push_native.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) {
if ((context ? context.ownerDocument || context : preferredDoc) !== document) {
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))) {
if (nodeType !== 1) {
newContext = context;
newSelector = selector; // qSA looks outside Element context, which is not what we want
// Thanks to Andrew Dupont for this workaround technique
// Support: IE <=8
// Exclude object elements
} else if (context.nodeName.toLowerCase() !== "object") {
// 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 + " " + toSelector(groups[i]);
}
newSelector = groups.join(","); // Expand context for sibling selectors
newContext = rsibling.test(selector) && testContext(context.parentNode) || context;
}
if (newSelector) {
try {
if (newSelector.indexOf(':has(') > -1) {
// https://github.com/AdguardTeam/ExtendedCss/issues/149
throw new Error('Do not handle :has() pseudo-class by the native method');
}
push.apply(results, newContext.querySelectorAll(newSelector));
return results;
} catch (qsaError) {
// [AdGuard Path]: Fix the cache value
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 :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;
};
}
/**
* 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) {
// documentElement is verified for cases where it doesn't yet exist
// (such as loading iframes in IE - #4833)
var documentElement = elem && (elem.ownerDocument || elem).documentElement;
return documentElement ? documentElement.nodeName !== "HTML" : false;
};
/**
* 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
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
// Accessing iframe documents after unload throws "permission denied" errors (jQuery #13936)
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);
}
}
/* 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) {
// 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 = AGPolicy.createHTML("<a id='" + expando + "'></a>" + "<select id='" + expando + "-\r\\' msallowcapture=''>" + "<option selected=''></option></select>"); // 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("~=");
} // 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(".#.+[+~]");
}
});
assert(function (el) {
el.innerHTML = AGPolicy.createHTML("<a href='' disabled='disabled'></a>" + "<select disabled='disabled'><option/></select>"); // 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");
} // 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
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
if (a === document || a.ownerDocument === preferredDoc && contains(preferredDoc, a)) {
return -1;
}
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) {
return a === document ? -1 : b === document ? 1 : 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
ap[i] === preferredDoc ? -1 : bp[i] === preferredDoc ? 1 : 0;
};
return document;
};
Sizzle.matches = function (expr, elements) {
return Sizzle(expr, null, null, elements);
};
Sizzle.matchesSelector = function (elem, expr) {
// Set document vars if needed
if ((elem.ownerDocument || elem) !== document) {
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) {
// [AdGuard Path]: Fix the cache value
nonnativeSelectorCache(expr, true);
}
}
return Sizzle(expr, document, null, [elem]).length > 0;
};
Sizzle.contains = function (context, elem) {
// Set document vars if needed
if ((context.ownerDocument || context) !== document) {
setDocument(context);
}
return contains(context, elem);
};
Sizzle.attr = function (elem, name) {
// Set document vars if needed
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 ATTR(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 CHILD(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 PSEUDO(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 TAG(nodeNameSelector) {
var nodeName = nodeNameSelector.replace(runescape, funescape).toLowerCase();
return nodeNameSelector === "*" ? function () {
return true;
} : function (elem) {
return elem.nodeName && elem.nodeName.toLowerCase() === nodeName;
};
},
"CLASS": function CLASS(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 ATTR(name, operator, check) {
return function (elem) {
var result = Sizzle.attr(elem, name);
if (result == null) {
return operator === "!=";
}
if (!operator) {
return true;
}
result += "";
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;
};
},
"CHILD": function CHILD(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(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) {
if (typeof selector === "string") {
Sizzle.compile(selector);
}
return function (elem) {
return Sizzle(selector, elem).length > 0;
};
}),
// Removed :contains pseudo-class declaration
// "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 target(elem) {
var hash = window.location && window.location.hash;
return hash && hash.slice(1) === elem.id;
},
"root": function root(elem) {
return elem === docElem;
},
"focus": function focus(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 checked(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 selected(elem) {
// Accessing this property makes selected-by-default
// options in Safari work properly
if (elem.parentNode) {
elem.parentNode.selectedIndex;
}
return elem.selected === true;
},
// Contents
"empty": function empty(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;
} // Removed custom pseudo-classes
}
}; // Removed custom pseudo-classes
// Easy API for creating new setFilters
function setFilters() {}
setFilters.prototype = Expr.filters = Expr.pseudos;
Expr.setFilters = new setFilters();
/**
* [AdGuard Patch]:
* Sorts the tokens in order to mitigate the performance issues caused by matching slow pseudos first:
* https://github.com/AdguardTeam/ExtendedCss/issues/55#issuecomment-364058745
*/
var sortTokenGroups = function () {
/**
* Splits compound selector into a list of simple selectors
*
* @param {*} tokens Tokens to split into groups
* @returns an array consisting of token groups (arrays) and relation tokens.
*/
var splitCompoundSelector = function splitCompoundSelector(tokens) {
var groups = [];
var currentTokensGroup = [];
var maxIdx = tokens.length - 1;
for (var i = 0; i <= maxIdx; i++) {
var token = tokens[i];
var relative = Sizzle.selectors.relative[token.type];
if (relative) {
groups.push(currentTokensGroup);
groups.push(token);
currentTokensGroup = [];
} else {
currentTokensGroup.push(token);
}
if (i === maxIdx) {
groups.push(currentTokensGroup);
}
}
return groups;
};
var TOKEN_TYPES_VALUES = {
// nth-child, etc, always go last
"CHILD": 100,
"ID": 90,
"CLASS": 80,
"TAG": 70,
"ATTR": 70,
"PSEUDO": 60
};
var POSITIONAL_PSEUDOS = ["nth", "first", "last", "eq", "even", "odd", "lt", "gt", "not"];
/**
* A function that defines the sort order.
* Returns a value lesser than 0 if "left" is less than "right".
*/
var compareFunction = function compareFunction(left, right) {
var leftValue = TOKEN_TYPES_VALUES[left.type];
var rightValue = TOKEN_TYPES_VALUES[right.type];
return leftValue - rightValue;
};
/**
* Checks if the specified tokens group is sortable.
* We do not re-sort tokens in case of any positional or child pseudos in the group
*/
var isSortable = function isSortable(tokens) {
var iTokens = tokens.length;
while (iTokens--) {
var token = tokens[iTokens];
if (token.type === "PSEUDO" && POSITIONAL_PSEUDOS.indexOf(token.matches[0]) !== -1) {
return false;
}
if (token.type === "CHILD") {
return false;
}
}
return true;
};
/**
* Sorts the tokens in order to mitigate the issues caused by the left-to-right matching.
* The idea is change the tokens order so that Sizzle was matching fast selectors first (id, class),
* and slow selectors after that (and here I mean our slow custom pseudo classes).
*
* @param {Array} tokens An array of tokens to sort
* @returns {Array} A new re-sorted array
*/
var sortTokens = function sortTokens(tokens) {
if (!tokens || tokens.length === 1) {
return tokens;
}
var sortedTokens = [];
var groups = splitCompoundSelector(tokens);
for (var i = 0; i < groups.length; i++) {
var group = groups[i];
if (group instanceof Array) {
if (isSortable(group)) {
group.sort(compareFunction);
}
sortedTokens = sortedTokens.concat(group);
} else {
sortedTokens.push(group);
}
}
return sortedTokens;
};
/**
* Sorts every tokens array inside of the specified "groups" array.
* See "sortTokens" methods for more information on how tokens are sorted.
*
* @param {Array} groups An array of tokens arrays.
* @returns {Array} A new array that consists of the same tokens arrays after sorting
*/
var sortTokenGroups = function sortTokenGroups(groups) {
var sortedGroups = [];
var len = groups.length;
var i = 0;
for (; i < len; i++) {
sortedGroups.push(sortTokens(groups[i]));
}
return sortedGroups;
}; // Expose
return sortTokenGroups;
}();
/**
* Creates custom policy to use TrustedTypes CSP policy
* https://w3c.github.io/webappsec-trusted-types/dist/spec/
*/
var AGPolicy = function createPolicy() {
var defaultPolicy = {
createHTML: function createHTML(input) {
return input;
},
createScript: function createScript(input) {
return input;
},
createScriptURL: function createScriptURL(input) {
return input;
}
};
if (window.trustedTypes && window.trustedTypes.createPolicy) {
return window.trustedTypes.createPolicy("AGPolicy", defaultPolicy);
}
return defaultPolicy;
}();
/**
* [AdGuard Patch]:
* Removes trailing spaces from the tokens list
*
* @param {*} tokens An array of Sizzle tokens to post-process
*/
function removeTrailingSpaces(tokens) {
var iTokens = tokens.length;
while (iTokens--) {
var token = tokens[iTokens];
if (token.type === " ") {
tokens.length = iTokens;
} else {
break;
}
}
}
/**
* [AdGuard Patch]:
* An object with the information about selectors and their token representation
* @typedef {{selectorText: string, groups: Array}} SelectorData
* @property {string} selectorText A CSS selector text
* @property {Array} groups An array of token groups corresponding to that selector
*/
/**
* [AdGuard Patch]:
* This method processes parsed token groups, divides them into a number of selectors
* and makes sure that each selector's tokens are cached properly in Sizzle.
*
* @param {*} groups Token groups (see {@link Sizzle.tokenize})
* @returns {Array.<SelectorData>} An array of selectors data we got from the groups
*/
function tokenGroupsToSelectors(groups) {
// Remove trailing spaces which we can encounter in tolerant mode
// We're doing it in tolerant mode only as this is the only case when
// encountering trailing spaces is expected
removeTrailingSpaces(groups[groups.length - 1]); // We need sorted tokens to make cache work properly
var sortedGroups = sortTokenGroups(groups);
var selectors = [];
for (var i = 0; i < groups.length; i++) {
var tokenGroups = groups[i];
var selectorText = toSelector(tokenGroups);
selectors.push({
// Sizzle expects an array of token groups when compiling a selector
groups: [tokenGroups],
selectorText: selectorText
}); // Now make sure that selector tokens are cached
var tokensCacheItem = {
groups: tokenGroups,
sortedGroups: [sortedGroups[i]]
};
tokenCache(selectorText, tokensCacheItem);
}
return selectors;
}
/**
* [AdGuard Patch]:
* Add an additional argument for Sizzle.tokenize which indicates that it
* should not throw on invalid tokens, and instead should return tokens
* that it has produced so far.
*
* One more additional argument that allow to choose if you want to receive sorted or unsorted tokens
* The problem is that the re-sorted selectors are valid for Sizzle, but not for the browser.
* options.returnUnsorted -- return unsorted tokens if true.
* options.cacheOnly -- return cached result only. Required for unit-tests.
*
* @param {*} options Optional configuration object with two additional flags
* (options.tolerant, options.returnUnsorted, options.cacheOnly) -- see patches #5 and #6 notes
*/
tokenize = Sizzle.tokenize = function (selector, parseOnly, options) {
var matched,
match,
tokens,
type,
soFar,
groups,
preFilters,
cached = tokenCache[selector + " "];
var tolerant = options && options.tolerant;
var returnUnsorted = options && options.returnUnsorted;
var cacheOnly = options && options.cacheOnly;
if (cached) {
if (parseOnly) {
return 0;
} else {
return (returnUnsorted ? cached.groups : cached.sortedGroups).slice(0);
}
}
if (cacheOnly) {
return null;
}
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
var invalidLen = soFar.length;
if (parseOnly) {
return invalidLen;
}
if (invalidLen !== 0 && !tolerant) {
Sizzle.error(selector); // Throws an error.
}
if (tolerant) {
/**
* [AdGuard Patch]:
* In tolerant mode we return a special object that constists of
* an array of parsed selectors (and their tokens) and a "nextIndex" field
* that points to an index after which we're not able to parse selectors farther.
*/
var nextIndex = selector.length - invalidLen;
var selectors = tokenGroupsToSelectors(groups);
return {
selectors: selectors,
nextIndex: nextIndex
};
}
/** [AdGuard Patch]: Sorting tokens */
var sortedGroups = sortTokenGroups(groups);
/** [AdGuard Patch]: Change the way tokens are cached */
var tokensCacheItem = {
groups: groups,
sortedGroups: sortedGroups
};
tokensCacheItem = tokenCache(selector, tokensCacheItem);
return (returnUnsorted ? tokensCacheItem.groups : tokensCacheItem.sortedGroups).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 superMatcher(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) {
outermostContext = context === document || context || outermost;
} // Add elements passing elementMatchers directly to results
// Support: IE<9, Safari
// Tolerate NodeList properties (IE: "length"; Safari: <number>) matching elements by id
for (; i !== len && (elem = elems[i]) != null; i++) {
if (byElement && elem) {
j = 0;
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 = AGPolicy.createHTML("<a href='#'></a>");
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 = AGPolicy.createHTML("<input/>");
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;
}
});
} // EXPOSE
// Do not expose Sizzle to the global scope in the case of AdGuard ExtendedCss build
return Sizzle; // EXPOSE
}(window); //>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
}
return Sizzle;
};
/* jshint ignore:end */
/**
* Copyright 2016 Adguard Software Ltd
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/**
* Class that extends Sizzle and adds support for "matches-css" pseudo element.
*/
var StylePropertyMatcher = function (window) {
var isPhantom = !!window._phantom;
var useFallback = isPhantom && !!window.getMatchedCSSRules;
/**
* Unquotes specified value
* Webkit-based browsers singlequotes <string> content property values
* Other browsers doublequotes content property values.
*/
var removeContentQuotes = function removeContentQuotes(value) {
if (typeof value === 'string') {
return value.replace(/^(["'])([\s\S]*)\1$/, '$2');
}
return value;
};
var getComputedStyle = window.getComputedStyle.bind(window);
var getMatchedCSSRules = useFallback ? window.getMatchedCSSRules.bind(window) : null;
/**
* There is an issue in browsers based on old webkit:
* getComputedStyle(el, ":before") is empty if element is not visible.
*
* To circumvent this issue we use getMatchedCSSRules instead.
*
* It appears that getMatchedCSSRules sorts the CSS rules
* in increasing order of specifities of corresponding selectors.
* We pick the css rule that is being applied to an element based on this assumption.
*
* @param element DOM node
* @param pseudoElement Optional pseudoElement name
* @param propertyName CSS property name
*/
var getComputedStylePropertyValue = function getComputedStylePropertyValue(element, pseudoElement, propertyName) {
var value = '';
if (useFallback && pseudoElement) {
var cssRules = getMatchedCSSRules(element, pseudoElement) || [];
var i = cssRules.length;
while (i-- > 0 && !value) {
value = cssRules[i].style.getPropertyValue(propertyName);
}
} else {
var style = getComputedStyle(element, pseudoElement);
if (style) {
value = style.getPropertyValue(propertyName); // https://bugs.webkit.org/show_bug.cgi?id=93445
if (propertyName === 'opacity' && utils.isSafariBrowser) {
value = (Math.round(parseFloat(value) * 100) / 100).toString();
}
}
}
if (propertyName === 'content') {
value = removeContentQuotes(value);
}
return value;
};
/**
* Adds url parameter quotes for non-regex pattern
* @param {string} pattern
*/
var addUrlQuotes = function addUrlQuotes(pattern) {
// for regex patterns
if (pattern[0] === '/' && pattern[pattern.length - 1] === '/' && pattern.indexOf('\\"') < 10) {
// e.g. /^url\\([a-z]{4}:[a-z]{5}/
// or /^url\\(data\\:\\image\\/gif;base64.+/
var re = /(\^)?url(\\)?\\\((\w|\[\w)/g;
return pattern.replace(re, '$1url$2\\\(\\"?$3');
} // for non-regex patterns
if (pattern.indexOf('url("') === -1) {
var _re = /url\((.*?)\)/g;
return pattern.replace(_re, 'url("$1")');
}
return pattern;
};
/**
* Class that matches element style against the specified expression
* @member {string} propertyName
* @member {string} pseudoElement
* @member {RegExp} regex
*/
var Matcher = function Matcher(propertyFilter, pseudoElement) {
this.pseudoElement = pseudoElement;
try {
var index = propertyFilter.indexOf(':');
this.propertyName = propertyFilter.substring(0, index).trim();
var pattern = propertyFilter.substring(index + 1).trim();
pattern = addUrlQuotes(pattern); // Unescaping pattern
// For non-regex patterns, (,),[,] should be unescaped, because we require escaping them in filter rules.
// For regex patterns, ",\ should be escaped, because we manually escape those in extended-css-selector.js.
if (/^\/.*\/$/.test(pattern)) {
pattern = pattern.slice(1, -1);
this.regex = utils.pseudoArgToRegex(pattern);
} else {
pattern = pattern.replace(/\\([\\()[\]"])/g, '$1');
this.regex = utils.createURLRegex(pattern);
}
} catch (ex) {
utils.logError("StylePropertyMatcher: invalid match string ".concat(propertyFilter));
}
};
/**
* Function to check if element CSS property matches filter pattern
* @param {Element} element to check
*/
Matcher.prototype.matches = function (element) {
if (!this.regex || !this.propertyName) {
return false;
}
var value = getComputedStylePropertyValue(element, this.pseudoElement, this.propertyName);
return value && this.regex.test(value);
};
/**
* Creates a new pseudo-class and registers it in Sizzle
*/
var extendSizzle = function extendSizzle(sizzle) {
// First of all we should prepare Sizzle engine
sizzle.selectors.pseudos['matches-css'] = sizzle.selectors.createPseudo(function (propertyFilter) {
var matcher = new Matcher(propertyFilter);
return function (element) {
return matcher.matches(element);
};
});
sizzle.selectors.pseudos['matches-css-before'] = sizzle.selectors.createPseudo(function (propertyFilter) {
var matcher = new Matcher(propertyFilter, ':before');
return function (element) {
return matcher.matches(element);
};
});
sizzle.selectors.pseudos['matches-css-after'] = sizzle.selectors.createPseudo(function (propertyFilter) {
var matcher = new Matcher(propertyFilter, ':after');
return function (element) {
return matcher.matches(element);
};
});
}; // EXPOSE
return {
extendSizzle: extendSizzle
};
}(window);
/**
* Copyright 2016 Adguard Software Ltd
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
var matcherUtils = {};
matcherUtils.MutationObserver = window.MutationObserver || window.WebKitMutationObserver;
/**
* Parses argument of matcher pseudo (for matches-attr and matches-property)
* @param {string} matcherFilter argument of pseudo class
* @returns {Array}
*/
matcherUtils.parseMatcherFilter = function (matcherFilter) {
var FULL_MATCH_MARKER = '"="';
var rawArgs = [];
if (matcherFilter.indexOf(FULL_MATCH_MARKER) === -1) {
// if there is only one pseudo arg
// e.g. :matches-attr("data-name") or :matches-property("inner.prop")
// Sizzle will parse it and get rid of quotes
// so it might be valid arg already without them
rawArgs.push(matcherFilter);
} else {
matcherFilter.split('=').forEach(function (arg) {
if (arg[0] === '"' && arg[arg.length - 1] === '"') {
rawArgs.push(arg.slice(1, -1));
}
});
}
return rawArgs;
};
/**
* @typedef {Object} ArgData
* @property {string} arg
* @property {boolean} isRegexp
*/
/**
* Parses raw matcher arg
* @param {string} rawArg
* @returns {ArgData}
*/
matcherUtils.parseRawMatcherArg = function (rawArg) {
var arg = rawArg;
var isRegexp = !!rawArg && rawArg[0] === '/' && rawArg[rawArg.length - 1] === '/';
if (isRegexp) {
// to avoid at least such case — :matches-property("//")
if (rawArg.length > 2) {
arg = utils.toRegExp(rawArg);
} else {
throw new Error("Invalid regexp: ".concat(rawArg));
}
}
return {
arg: arg,
isRegexp: isRegexp
};
};
/**
* @typedef Chain
* @property {Object} base
* @property {string} prop
* @property {string} value
*/
/**
* Checks if the property exists in the base object (recursively).
* @param {Object} base
* @param {ArgData[]} chain array of objects - parsed string property chain
* @param {Array} [output=[]] result acc
* @returns {Chain[]} array of objects
*/
matcherUtils.filterRootsByRegexpChain = function (base, chain) {
var output = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : [];
var tempProp = chain[0];
if (chain.length === 1) {
// eslint-disable-next-line no-restricted-syntax
for (var key in base) {
if (tempProp.isRegexp) {
if (tempProp.arg.test(key)) {
output.push({
base: base,
prop: key,
value: base[key]
});
}
} else if (tempProp.arg === key) {
output.push({
base: base,
prop: tempProp.arg,
value: base[key]
});
}
}
return output;
} // if there is a regexp prop in input chain
// e.g. 'unit./^ad.+/.src' for 'unit.ad-1gf2.src unit.ad-fgd34.src'),
// every base keys should be tested by regexp and it can be more that one results
if (tempProp.isRegexp) {
var nextProp = chain.slice(1);
var baseKeys = []; // eslint-disable-next-line no-restricted-syntax
for (var _key in base) {
if (tempProp.arg.test(_key)) {
baseKeys.push(_key);
}
}
baseKeys.forEach(function (key) {
var item = base[key];
matcherUtils.filterRootsByRegexpChain(item, nextProp, output);
});
} // avoid TypeError while accessing to null-prop's child
if (base === null) {
return;
}
var nextBase = base[tempProp.arg];
chain = chain.slice(1);
if (nextBase !== undefined) {
matcherUtils.filterRootsByRegexpChain(nextBase, chain, output);
}
return output;
};
/**
* Validates parsed args of matches-property pseudo
* @param {...ArgData} args
*/
matcherUtils.validatePropMatcherArgs = function () {
for (var _len = arguments.length, args = new Array(_len), _key2 = 0; _key2 < _len; _key2++) {
args[_key2] = arguments[_key2];
}
for (var i = 0; i < args.length; i += 1) {
if (args[i].isRegexp) {
if (!utils.startsWith(args[i].arg.toString(), '/') || !utils.endsWith(args[i].arg.toString(), '/')) {
return false;
} // simple arg check if it is not a regexp
} else if (!/^[\w-]+$/.test(args[i].arg)) {
return false;
}
}
return true;
};
/**
* Class that extends Sizzle and adds support for "matches-attr" pseudo element.
*/
var AttributesMatcher = function () {
/**
* Class that matches element attributes against the specified expressions
* @param {ArgData} nameArg - parsed name argument
* @param {ArgData} valueArg - parsed value argument
* @param {string} pseudoElement
* @constructor
*
* @member {string|RegExp} attrName
* @member {boolean} isRegexpName
* @member {string|RegExp} attrValue
* @member {boolean} isRegexpValue
*/
var AttrMatcher = function AttrMatcher(nameArg, valueArg, pseudoElement) {
this.pseudoElement = pseudoElement;
this.attrName = nameArg.arg;
this.isRegexpName = nameArg.isRegexp;
this.attrValue = valueArg.arg;
this.isRegexpValue = valueArg.isRegexp;
};
/**
* Function to check if element attributes matches filter pattern
* @param {Element} element to check
*/
AttrMatcher.prototype.matches = function (element) {
var elAttrs = element.attributes;
if (elAttrs.length === 0 || !this.attrName) {
return false;
}
var i = 0;
while (i < elAttrs.length) {
var attr = elAttrs[i];
var matched = false;
var attrNameMatched = this.isRegexpName ? this.attrName.test(attr.name) : this.attrName === attr.name;
if (!this.attrValue) {
// for :matches-attr("/regex/") or :matches-attr("attr-name")
matched = attrNameMatched;
} else {
var attrValueMatched = this.isRegexpValue ? this.attrValue.test(attr.value) : this.attrValue === attr.value;
matched = attrNameMatched && attrValueMatched;
}
if (matched) {
return true;
}
i += 1;
}
};
/**
* Creates a new pseudo-class and registers it in Sizzle
*/
var extendSizzle = function extendSizzle(sizzle) {
// First of all we should prepare Sizzle engine
sizzle.selectors.pseudos['matches-attr'] = sizzle.selectors.createPseudo(function (attrFilter) {
var _matcherUtils$parseMa = matcherUtils.parseMatcherFilter(attrFilter),
_matcherUtils$parseMa2 = _slicedToArray(_matcherUtils$parseMa, 2),
rawName = _matcherUtils$parseMa2[0],
rawValue = _matcherUtils$parseMa2[1];
var nameArg = matcherUtils.parseRawMatcherArg(rawName);
var valueArg = matcherUtils.parseRawMatcherArg(rawValue);
if (!attrFilter || !matcherUtils.validatePropMatcherArgs(nameArg, valueArg)) {
throw new Error("Invalid argument of :matches-attr pseudo class: ".concat(attrFilter));
}
var matcher = new AttrMatcher(nameArg, valueArg);
return function (element) {
return matcher.matches(element);
};
});
}; // EXPOSE
return {
extendSizzle: extendSizzle
};
}();
/**
* Parses raw property arg
* @param {string} input
* @returns {ArgData[]} array of objects
*/
var parseRawPropChain = function parseRawPropChain(input) {
var PROPS_DIVIDER = '.';
var REGEXP_MARKER = '/';
var propsArr = [];
var str = input;
while (str.length > 0) {
if (utils.startsWith(str, PROPS_DIVIDER)) {
// for cases like '.prop.id' and 'nested..test'
throw new Error("Invalid chain property: ".concat(input));
}
if (!utils.startsWith(str, REGEXP_MARKER)) {
var isRegexp = false;
var dividerIndex = str.indexOf(PROPS_DIVIDER);
if (str.indexOf(PROPS_DIVIDER) === -1) {
// if there is no '.' left in str
// take the rest of str as prop
propsArr.push({
arg: str,
isRegexp: isRegexp
});
return propsArr;
} // else take prop from str
var prop = str.slice(0, dividerIndex); // for cases like 'asadf.?+/.test'
if (prop.indexOf(REGEXP_MARKER) > -1) {
// prop is '?+/'
throw new Error("Invalid chain property: ".concat(prop));
}
propsArr.push({
arg: prop,
isRegexp: isRegexp
}); // delete prop from str
str = str.slice(dividerIndex);
} else {
// deal with regexp
var propChunks = [];
propChunks.push(str.slice(0, 1)); // if str starts with '/', delete it from str and find closing regexp slash.
// note that chained property name can not include '/' or '.'
// so there is no checking for escaped characters
str = str.slice(1);
var regexEndIndex = str.indexOf(REGEXP_MARKER);
if (regexEndIndex < 1) {
// regexp should be at least === '/./'
// so we should avoid args like '/id' and 'test.//.id'
throw new Error("Invalid regexp: ".concat(REGEXP_MARKER).concat(str));
}
var _isRegexp = true; // take the rest regexp part
propChunks.push(str.slice(0, regexEndIndex + 1));
var _prop = utils.toRegExp(propChunks.join(''));
propsArr.push({
arg: _prop,
isRegexp: _isRegexp
}); // delete prop from str
str = str.slice(regexEndIndex + 1);
}
if (!str) {
return propsArr;
} // str should be like '.nextProp' now
// so 'zx.prop' or '.' is invalid
if (!utils.startsWith(str, PROPS_DIVIDER) || utils.startsWith(str, PROPS_DIVIDER) && str.length === 1) {
throw new Error("Invalid chain property: ".concat(input));
}
str = str.slice(1);
}
};
var convertTypeFromStr = function convertTypeFromStr(value) {
var numValue = Number(value);
var output;
if (!Number.isNaN(numValue)) {
output = numValue;
} else {
switch (value) {
case 'undefined':
output = undefined;
break;
case 'null':
output = null;
break;
case 'true':
output = true;
break;
case 'false':
output = false;
break;
default:
output = value;
}
}
return output;
};
var convertTypeIntoStr = function convertTypeIntoStr(value) {
var output;
switch (value) {
case undefined:
output = 'undefined';
break;
case null:
output = 'null';
break;
default:
output = value.toString();
}
return output;
};
/**
* Class that extends Sizzle and adds support for "matches-property" pseudo element.
*/
var ElementPropertyMatcher = function () {
/**
* Class that matches element properties against the specified expressions
* @param {ArgData[]} propsChainArg - array of parsed props chain objects
* @param {ArgData} valueArg - parsed value argument
* @param {string} pseudoElement
* @constructor
*
* @member {Array} chainedProps
* @member {boolean} isRegexpName
* @member {string|RegExp} propValue
* @member {boolean} isRegexpValue
*/
var PropMatcher = function PropMatcher(propsChainArg, valueArg, pseudoElement) {
this.pseudoElement = pseudoElement;
this.chainedProps = propsChainArg;
this.propValue = valueArg.arg;
this.isRegexpValue = valueArg.isRegexp;
};
/**
* Function to check if element properties matches filter pattern
* @param {Element} element to check
*/
PropMatcher.prototype.matches = function (element) {
var ownerObjArr = matcherUtils.filterRootsByRegexpChain(element, this.chainedProps);
if (ownerObjArr.length === 0) {
return false;
}
var matched = true;
if (this.propValue) {
for (var i = 0; i < ownerObjArr.length; i += 1) {
var realValue = ownerObjArr[i].value;
if (this.isRegexpValue) {
matched = this.propValue.test(convertTypeIntoStr(realValue));
} else {
// handle 'null' and 'undefined' property values set as string
if (realValue === 'null' || realValue === 'undefined') {
matched = this.propValue === realValue;
break;
}
matched = convertTypeFromStr(this.propValue) === realValue;
}
if (matched) {
break;
}
}
}
return matched;
};
/**
* Creates a new pseudo-class and registers it in Sizzle
*/
var extendSizzle = function extendSizzle(sizzle) {
// First of all we should prepare Sizzle engine
sizzle.selectors.pseudos['matches-property'] = sizzle.selectors.createPseudo(function (propertyFilter) {
if (!propertyFilter) {
throw new Error('No argument is given for :matches-property pseudo class');
}
var _matcherUtils$parseMa = matcherUtils.parseMatcherFilter(propertyFilter),
_matcherUtils$parseMa2 = _slicedToArray(_matcherUtils$parseMa, 2),
rawProp = _matcherUtils$parseMa2[0],
rawValue = _matcherUtils$parseMa2[1]; // chained property name can not include '/' or '.'
// so regex prop names with such escaped characters are invalid
if (rawProp.indexOf('\\/') > -1 || rawProp.indexOf('\\.') > -1) {
throw new Error("Invalid property name: ".concat(rawProp));
}
var propsChainArg = parseRawPropChain(rawProp);
var valueArg = matcherUtils.parseRawMatcherArg(rawValue);
var propsToValidate = [].concat(_toConsumableArray(propsChainArg), [valueArg]);
if (!matcherUtils.validatePropMatcherArgs(propsToValidate)) {
throw new Error("Invalid argument of :matches-property pseudo class: ".concat(propertyFilter));
}
var matcher = new PropMatcher(propsChainArg, valueArg);
return function (element) {
return matcher.matches(element);
};
});
}; // EXPOSE
return {
extendSizzle: extendSizzle
};
}();
/**
* Copyright 2020 Adguard Software Ltd
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/**
* Class that extends Sizzle and adds support for :is() pseudo element.
*/
var IsAnyMatcher = function () {
/**
* Class that matches element by one of the selectors
* https://developer.mozilla.org/en-US/docs/Web/CSS/:is
* @param {Array} selectors
* @param {string} pseudoElement
* @constructor
*/
var IsMatcher = function IsMatcher(selectors, pseudoElement) {
this.selectors = selectors;
this.pseudoElement = pseudoElement;
};
/**
* Function to check if element can be matched by any passed selector
* @param {Element} element to check
*/
IsMatcher.prototype.matches = function (element) {
var isMatched = !!this.selectors.find(function (selector) {
var nodes = document.querySelectorAll(selector);
return Array.from(nodes).find(function (node) {
return node === element;
});
});
return isMatched;
};
/**
* Creates a new pseudo-class and registers it in Sizzle
*/
var extendSizzle = function extendSizzle(sizzle) {
// First of all we should prepare Sizzle engine
sizzle.selectors.pseudos['is'] = sizzle.selectors.createPseudo(function (input) {
if (input === '') {
throw new Error("Invalid argument of :is pseudo-class: ".concat(input));
}
var selectors = input.split(',').map(function (s) {
return s.trim();
}); // collect valid selectors and log about invalid ones
var validSelectors = selectors.reduce(function (acc, selector) {
if (cssUtils.isSimpleSelectorValid(selector)) {
acc.push(selector);
} else {
utils.logInfo("Invalid selector passed to :is() pseudo-class: '".concat(selector, "'"));
}
return acc;
}, []);
var matcher = new IsMatcher(validSelectors);
return function (element) {
return matcher.matches(element);
};
});
};
return {
extendSizzle: extendSizzle
};
}();
/**
* Copyright 2021 Adguard Software Ltd
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/**
* Extended selector factory module, for creating extended selector classes.
*
* Extended selection capabilities description:
* https://github.com/AdguardTeam/ExtendedCss/blob/master/README.md
*/
var ExtendedSelectorFactory = function () {
// while adding new markers, constants in other AdGuard repos should be corrected
// AdGuard browser extension : CssFilterRule.SUPPORTED_PSEUDO_CLASSES and CssFilterRule.EXTENDED_CSS_MARKERS
// tsurlfilter, SafariConverterLib : EXT_CSS_PSEUDO_INDICATORS
var PSEUDO_EXTENSIONS_MARKERS = [':has', ':contains', ':has-text', ':matches-css', ':-abp-has', ':-abp-has-text', ':if', ':if-not', ':xpath', ':nth-ancestor', ':upward', ':remove', ':matches-attr', ':matches-property', ':-abp-contains', ':is'];
var initialized = false;
var Sizzle;
/**
* Lazy initialization of the ExtendedSelectorFactory and objects that might be necessary for creating and applying styles.
* This method extends Sizzle engine that we use under the hood with our custom pseudo-classes.
*/
function initialize() {
if (initialized) {
return;
}
initialized = true; // Our version of Sizzle is initialized lazily as well
Sizzle = initializeSizzle(); // Add :matches-css-*() support
StylePropertyMatcher.extendSizzle(Sizzle); // Add :matches-attr() support
AttributesMatcher.extendSizzle(Sizzle); // Add :matches-property() support
ElementPropertyMatcher.extendSizzle(Sizzle); // Add :is() support
IsAnyMatcher.extendSizzle(Sizzle); // Add :contains, :has-text, :-abp-contains support
var containsPseudo = Sizzle.selectors.createPseudo(function (text) {
if (/^\s*\/.*\/[gmisuy]*\s*$/.test(text)) {
text = text.trim();
var flagsIndex = text.lastIndexOf('/');
var flags = text.substring(flagsIndex + 1);
text = text.substr(0, flagsIndex + 1).slice(1, -1).replace(/\\([\\"])/g, '$1');
var regex;
try {
regex = new RegExp(text, flags);
} catch (e) {
throw new Error("Invalid argument of :contains pseudo class: ".concat(text));
}
return function (elem) {
var elemTextContent = utils.nodeTextContentGetter.apply(elem);
return regex.test(elemTextContent);
};
}
text = text.replace(/\\([\\()[\]"])/g, '$1');
return function (elem) {
var elemTextContent = utils.nodeTextContentGetter.apply(elem);
return elemTextContent.indexOf(text) > -1;
};
});
Sizzle.selectors.pseudos['contains'] = containsPseudo;
Sizzle.selectors.pseudos['has-text'] = containsPseudo;
Sizzle.selectors.pseudos['-abp-contains'] = containsPseudo; // Add :if, :-abp-has support
Sizzle.selectors.pseudos['if'] = Sizzle.selectors.pseudos['has'];
Sizzle.selectors.pseudos['-abp-has'] = Sizzle.selectors.pseudos['has']; // Add :if-not support
Sizzle.selectors.pseudos['if-not'] = Sizzle.selectors.createPseudo(function (selector) {
if (typeof selector === 'string') {
Sizzle.compile(selector);
}
return function (elem) {
return Sizzle(selector, elem).length === 0;
};
});
registerParserOnlyTokens();
}
/**
* Registrate custom tokens for parser.
* Needed for proper work of pseudos:
* for checking if the token is last and pseudo-class arguments validation
*/
function registerParserOnlyTokens() {
Sizzle.selectors.pseudos['xpath'] = Sizzle.selectors.createPseudo(function (selector) {
try {
document.createExpression(selector, null);
} catch (e) {
throw new Error("Invalid argument of :xpath pseudo class: ".concat(selector));
}
return function () {
return true;
};
});
Sizzle.selectors.pseudos['nth-ancestor'] = Sizzle.selectors.createPseudo(function (selector) {
var deep = Number(selector);
if (Number.isNaN(deep) || deep < 1 || deep >= 256) {
throw new Error("Invalid argument of :nth-ancestor pseudo class: ".concat(selector));
}
return function () {
return true;
};
});
Sizzle.selectors.pseudos['upward'] = Sizzle.selectors.createPseudo(function (input) {
if (input === '') {
throw new Error("Invalid argument of :upward pseudo class: ".concat(input));
} else if (Number.isInteger(+input) && (+input < 1 || +input >= 256)) {
throw new Error("Invalid argument of :upward pseudo class: ".concat(input));
}
return function () {
return true;
};
});
Sizzle.selectors.pseudos['remove'] = Sizzle.selectors.createPseudo(function (input) {
if (input !== '') {
throw new Error("Invalid argument of :remove pseudo class: ".concat(input));
}
return function () {
return true;
};
});
}
/**
* Checks if specified token can be used by document.querySelectorAll.
*/
function isSimpleToken(token) {
var type = token.type;
if (type === 'ID' || type === 'CLASS' || type === 'ATTR' || type === 'TAG' || type === 'CHILD') {
// known simple tokens
return true;
}
if (type === 'PSEUDO') {
// check if value contains any of extended pseudo classes
var i = PSEUDO_EXTENSIONS_MARKERS.length;
while (i--) {
if (token.value.indexOf(PSEUDO_EXTENSIONS_MARKERS[i]) >= 0) {
return false;
}
}
return true;
} // all others aren't simple
return false;
}
/**
* Checks if specified token is a combinator
*/
function isRelationToken(token) {
var type = token.type;
return type === ' ' || type === '>' || type === '+' || type === '~';
}
/**
* ExtendedSelectorParser is a helper class for creating various selector instances which
* all shares a method `querySelectorAll()` and `matches()` implementing different search strategies
* depending on a type of selector.
*
* Currently, there are 3 types:
* A trait-less extended selector
* - we directly feed selector strings to Sizzle.
* A splitted extended selector
* - such as #container #feedItem:has(.ads), where it is splitted to `#container` and `#feedItem:has(.ads)`.
*/
function ExtendedSelectorParser(selectorText, tokens, debug) {
initialize();
if (typeof tokens === 'undefined') {
this.selectorText = cssUtils.normalize(selectorText); // Passing `returnUnsorted` in order to receive tokens in the order that's valid for the browser
// In Sizzle internally, the tokens are re-sorted: https://github.com/AdguardTeam/ExtendedCss/issues/55
this.tokens = Sizzle.tokenize(this.selectorText, false, {
returnUnsorted: true
});
} else {
this.selectorText = selectorText;
this.tokens = tokens;
}
if (debug === true) {
this.debug = true;
}
}
ExtendedSelectorParser.prototype = {
/**
* The main method, creates a selector instance depending on the type of a selector.
* @public
*/
createSelector: function createSelector() {
var debug = this.debug;
var tokens = this.tokens;
var selectorText = this.selectorText;
if (tokens.length !== 1) {
// Comma-separate selector - can't optimize further
return new TraitLessSelector(selectorText, debug);
}
var xpathPart = this.getXpathPart();
if (typeof xpathPart !== 'undefined') {
return new XpathSelector(selectorText, xpathPart, debug);
}
var upwardPart = this.getUpwardPart();
if (typeof upwardPart !== 'undefined') {
var output;
var upwardDeep = parseInt(upwardPart, 10); // if upward parameter is not a number, we consider it as a selector
if (Number.isNaN(upwardDeep)) {
output = new UpwardSelector(selectorText, upwardPart, debug);
} else {
// upward works like nth-ancestor
var xpath = this.convertNthAncestorToken(upwardDeep);
output = new XpathSelector(selectorText, xpath, debug);
}
return output;
} // argument of pseudo-class remove;
// it's defined only if remove is parsed as last token
// and it's valid only if remove arg is empty string
var removePart = this.getRemovePart();
if (typeof removePart !== 'undefined') {
var hasValidRemovePart = removePart === '';
return new RemoveSelector(selectorText, hasValidRemovePart, debug);
}
tokens = tokens[0];
var l = tokens.length;
var lastRelTokenInd = this.getSplitPoint();
if (typeof lastRelTokenInd === 'undefined') {
try {
document.querySelector(selectorText);
} catch (e) {
return new TraitLessSelector(selectorText, debug);
}
return new NotAnExtendedSelector(selectorText, debug);
}
var simple = '';
var relation = null;
var complex = '';
var i = 0;
for (; i < lastRelTokenInd; i++) {
// build simple part
simple += tokens[i].value;
}
if (i > 0) {
// build relation part
relation = tokens[i++].type;
} // i is pointing to the start of a complex part.
for (; i < l; i++) {
complex += tokens[i].value;
}
return lastRelTokenInd === -1 ? new TraitLessSelector(selectorText, debug) : new SplittedSelector(selectorText, simple, relation, complex, debug);
},
/**
* @private
* @return {number|undefined} An index of a token that is split point.
* returns undefined if the selector does not contain any complex tokens
* or it is not eligible for splitting.
* Otherwise returns an integer indicating the index of the last relation token.
*/
getSplitPoint: function getSplitPoint() {
var tokens = this.tokens[0]; // We split selector only when the last compound selector
// is the only extended selector.
var latestRelationTokenIndex = -1;
var haveMetComplexToken = false;
for (var i = 0, l = tokens.length; i < l; i++) {
var token = tokens[i];
if (isRelationToken(token)) {
if (haveMetComplexToken) {
return;
}
latestRelationTokenIndex = i;
} else if (!isSimpleToken(token)) {
haveMetComplexToken = true;
}
}
if (!haveMetComplexToken) {
return;
}
return latestRelationTokenIndex;
},
/**
* @private
* @return {string|undefined} xpath selector part if exists
* returns undefined if the selector does not contain xpath tokens
*/
getXpathPart: function getXpathPart() {
var tokens = this.tokens[0];
for (var i = 0, tokensLength = tokens.length; i < tokensLength; i++) {
var token = tokens[i];
if (token.type === 'PSEUDO') {
var matches = token.matches;
if (matches && matches.length > 1) {
if (matches[0] === 'xpath') {
if (this.isLastToken(tokens, i)) {
throw new Error('Invalid pseudo: \':xpath\' should be at the end of the selector');
}
return matches[1];
}
if (matches[0] === 'nth-ancestor') {
if (this.isLastToken(tokens, i)) {
throw new Error('Invalid pseudo: \':nth-ancestor\' should be at the end of the selector');
}
var deep = matches[1];
if (deep > 0 && deep < 256) {
return this.convertNthAncestorToken(deep);
}
}
}
}
}
},
/**
* converts nth-ancestor/upward deep value to xpath equivalent
* @param {number} deep
* @return {string}
*/
convertNthAncestorToken: function convertNthAncestorToken(deep) {
var result = '..';
while (deep > 1) {
result += '/..';
deep--;
}
return result;
},
/**
* Checks if the token is last,
* except of remove pseudo-class
* @param {Array} tokens
* @param {number} i index of token
* @returns {boolean}
*/
isLastToken: function isLastToken(tokens, i) {
// check id the next parsed token is remove pseudo
var isNextRemoveToken = tokens[i + 1] && tokens[i + 1].type === 'PSEUDO' && tokens[i + 1].matches && tokens[i + 1].matches[0] === 'remove'; // check if the token is last
// and if it is not check if it is remove one
// which should be skipped
return i + 1 !== tokens.length && !isNextRemoveToken;
},
/**
* @private
* @return {string|undefined} upward parameter
* or undefined if the input does not contain upward tokens
*/
getUpwardPart: function getUpwardPart() {
var tokens = this.tokens[0];
for (var i = 0, tokensLength = tokens.length; i < tokensLength; i++) {
var token = tokens[i];
if (token.type === 'PSEUDO') {
var matches = token.matches;
if (matches && matches.length > 1) {
if (matches[0] === 'upward') {
if (this.isLastToken(tokens, i)) {
throw new Error('Invalid pseudo: \':upward\' should be at the end of the selector');
}
return matches[1];
}
}
}
}
},
/**
* @private
* @return {string|undefined} remove parameter
* or undefined if the input does not contain remove tokens
*/
getRemovePart: function getRemovePart() {
var tokens = this.tokens[0];
for (var i = 0, tokensLength = tokens.length; i < tokensLength; i++) {
var token = tokens[i];
if (token.type === 'PSEUDO') {
var matches = token.matches;
if (matches && matches.length > 1) {
if (matches[0] === 'remove') {
if (i + 1 !== tokensLength) {
throw new Error('Invalid pseudo: \':remove\' should be at the end of the selector');
}
return matches[1];
}
}
}
}
}
};
var globalDebuggingFlag = false;
function isDebugging() {
return globalDebuggingFlag || this.debug;
}
/**
* This class represents a selector which is not an extended selector.
* @param {string} selectorText
* @param {boolean=} debug
* @final
*/
function NotAnExtendedSelector(selectorText, debug) {
this.selectorText = selectorText;
this.debug = debug;
}
NotAnExtendedSelector.prototype = {
querySelectorAll: function querySelectorAll() {
return document.querySelectorAll(this.selectorText);
},
matches: function matches(element) {
return element[utils.matchesPropertyName](this.selectorText);
},
isDebugging: isDebugging
};
/**
* A trait-less extended selector class.
* @param {string} selectorText
* @param {boolean=} debug
* @constructor
*/
function TraitLessSelector(selectorText, debug) {
this.selectorText = selectorText;
this.debug = debug;
Sizzle.compile(selectorText);
}
TraitLessSelector.prototype = {
querySelectorAll: function querySelectorAll() {
return Sizzle(this.selectorText);
},
/** @final */
matches: function matches(element) {
return Sizzle.matchesSelector(element, this.selectorText);
},
/** @final */
isDebugging: isDebugging
};
/**
* Parental class for such pseudo-classes as xpath, upward, remove
* which are limited to be the last one token in selector
*
* @param {string} selectorText
* @param {string} pseudoClassArg pseudo-class arg
* @param {boolean=} debug
* @constructor
*/
function BaseLastArgumentSelector(selectorText, pseudoClassArg, debug) {
this.selectorText = selectorText;
this.pseudoClassArg = pseudoClassArg;
this.debug = debug;
Sizzle.compile(this.selectorText);
}
BaseLastArgumentSelector.prototype = {
querySelectorAll: function querySelectorAll() {
var _this = this;
var resultNodes = [];
var simpleNodes;
if (this.selectorText) {
simpleNodes = Sizzle(this.selectorText);
if (!simpleNodes || !simpleNodes.length) {
return resultNodes;
}
} else {
simpleNodes = [document];
}
simpleNodes.forEach(function (node) {
_this.searchResultNodes(node, _this.pseudoClassArg, resultNodes);
});
return Sizzle.uniqueSort(resultNodes);
},
/** @final */
matches: function matches(element) {
var results = this.querySelectorAll();
return results.indexOf(element) > -1;
},
/** @final */
isDebugging: isDebugging,
/**
* Primitive method that returns all nodes if pseudo-class arg is defined.
* That logic works for remove pseudo-class,
* but for others it should be overridden.
* @param {Object} node context element
* @param {string} pseudoClassArg pseudo-class argument
* @param {Array} result
*/
searchResultNodes: function searchResultNodes(node, pseudoClassArg, result) {
if (pseudoClassArg) {
result.push(node);
}
}
};
/**
* Xpath selector class
* Limited to support 'xpath' to be only the last one token in selector
* @param {string} selectorText
* @param {string} xpath value
* @param {boolean=} debug
* @constructor
* @augments BaseLastArgumentSelector
*/
function XpathSelector(selectorText, xpath, debug) {
var NO_SELECTOR_MARKER = ':xpath(//';
var BODY_SELECTOR_REPLACER = 'body:xpath(//';
var modifiedSelectorText = selectorText; // Normally, a pseudo-class is applied to nodes selected by a selector -- selector:xpath(...).
// However, :xpath is special as the selector can be ommited.
// For any other pseudo-class that would mean "apply to ALL DOM nodes",
// but in case of :xpath it just means "apply me to the document".
if (utils.startsWith(selectorText, NO_SELECTOR_MARKER)) {
modifiedSelectorText = selectorText.replace(NO_SELECTOR_MARKER, BODY_SELECTOR_REPLACER);
}
BaseLastArgumentSelector.call(this, modifiedSelectorText, xpath, debug);
}
XpathSelector.prototype = Object.create(BaseLastArgumentSelector.prototype);
XpathSelector.prototype.constructor = XpathSelector;
/**
* Applies xpath pseudo-class to provided context node
* @param {Object} node context element
* @param {string} pseudoClassArg xpath
* @param {Array} result
* @override
*/
XpathSelector.prototype.searchResultNodes = function (node, pseudoClassArg, result) {
var xpathResult = document.evaluate(pseudoClassArg, node, null, XPathResult.UNORDERED_NODE_ITERATOR_TYPE, null);
var iNode; // eslint-disable-next-line no-cond-assign
while (iNode = xpathResult.iterateNext()) {
result.push(iNode);
}
};
/**
* Upward selector class
* Limited to support 'upward' to be only the last one token in selector
* @param {string} selectorText
* @param {string} upwardSelector value
* @param {boolean=} debug
* @constructor
* @augments BaseLastArgumentSelector
*/
function UpwardSelector(selectorText, upwardSelector, debug) {
BaseLastArgumentSelector.call(this, selectorText, upwardSelector, debug);
}
UpwardSelector.prototype = Object.create(BaseLastArgumentSelector.prototype);
UpwardSelector.prototype.constructor = UpwardSelector;
/**
* Applies upward pseudo-class to provided context node
* @param {Object} node context element
* @param {string} upwardSelector upward selector
* @param {Array} result
* @override
*/
UpwardSelector.prototype.searchResultNodes = function (node, upwardSelector, result) {
if (upwardSelector !== '') {
var parent = node.parentElement;
if (parent === null) {
return;
}
node = parent.closest(upwardSelector);
if (node === null) {
return;
}
}
result.push(node);
};
/**
* Remove selector class
* Limited to support 'remove' to be only the last one token in selector
* @param {string} selectorText
* @param {boolean} hasValidRemovePart
* @param {boolean=} debug
* @constructor
* @augments BaseLastArgumentSelector
*/
function RemoveSelector(selectorText, hasValidRemovePart, debug) {
var REMOVE_PSEUDO_MARKER = ':remove()';
var removeMarkerIndex = selectorText.indexOf(REMOVE_PSEUDO_MARKER); // deleting remove part of rule instead of which
// pseudo-property property 'remove' will be added by ExtendedCssParser
var modifiedSelectorText = selectorText.slice(0, removeMarkerIndex);
BaseLastArgumentSelector.call(this, modifiedSelectorText, hasValidRemovePart, debug); // mark extendedSelector as Remove one for ExtendedCssParser
this.isRemoveSelector = true;
}
RemoveSelector.prototype = Object.create(BaseLastArgumentSelector.prototype);
RemoveSelector.prototype.constructor = RemoveSelector;
/**
* A splitted extended selector class.
*
* #container #feedItem:has(.ads)
* +--------+ simple
* + relation
* +-----------------+ complex
* We split selector only when the last selector is complex
* @param {string} selectorText
* @param {string} simple
* @param {string} relation
* @param {string} complex
* @param {boolean=} debug
* @constructor
* @extends TraitLessSelector
*/
function SplittedSelector(selectorText, simple, relation, complex, debug) {
TraitLessSelector.call(this, selectorText, debug);
this.simple = simple;
this.relation = relation;
this.complex = complex;
Sizzle.compile(complex);
}
SplittedSelector.prototype = Object.create(TraitLessSelector.prototype);
SplittedSelector.prototype.constructor = SplittedSelector;
/** @override */
SplittedSelector.prototype.querySelectorAll = function () {
var _this2 = this;
var resultNodes = [];
var simpleNodes;
var simple = this.simple;
var relation;
if (simple) {
// First we use simple selector to narrow our search
simpleNodes = document.querySelectorAll(simple);
if (!simpleNodes || !simpleNodes.length) {
return resultNodes;
}
relation = this.relation;
} else {
simpleNodes = [document];
relation = ' ';
}
switch (relation) {
case ' ':
simpleNodes.forEach(function (node) {
_this2.relativeSearch(node, resultNodes);
});
break;
case '>':
{
simpleNodes.forEach(function (node) {
Object.values(node.children).forEach(function (childNode) {
if (_this2.matches(childNode)) {
resultNodes.push(childNode);
}
});
});
break;
}
case '+':
{
simpleNodes.forEach(function (node) {
var parentNode = node.parentNode;
Object.values(parentNode.children).forEach(function (childNode) {
if (_this2.matches(childNode) && childNode.previousElementSibling === node) {
resultNodes.push(childNode);
}
});
});
break;
}
case '~':
{
simpleNodes.forEach(function (node) {
var parentNode = node.parentNode;
Object.values(parentNode.children).forEach(function (childNode) {
if (_this2.matches(childNode) && node.compareDocumentPosition(childNode) === 4) {
resultNodes.push(childNode);
}
});
});
break;
}
}
return Sizzle.uniqueSort(resultNodes);
};
/**
* Performs a search of "complex" part relative to results for the "simple" part.
* @param {Node} node a node matching the "simple" part.
* @param {Node[]} result an array to append search result.
*/
SplittedSelector.prototype.relativeSearch = function (node, results) {
Sizzle(this.complex, node, results);
};
return {
/**
* Wraps the inner class so that the instance is not exposed.
*/
createSelector: function createSelector(selector, tokens, debug) {
return new ExtendedSelectorParser(selector, tokens, debug).createSelector();
},
/**
* Mark every selector as a selector being debugged, so that timing information
* for the selector is printed to the console.
*/
enableGlobalDebugging: function enableGlobalDebugging() {
globalDebuggingFlag = true;
}
};
}();
/**
* Copyright 2016 Adguard Software Ltd
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/**
* A helper class that parses stylesheets containing extended selectors
* into ExtendedSelector instances and key-value maps of style declarations.
* Please note, that it does not support any complex things like media queries and such.
*/
var ExtendedCssParser = function () {
var reDeclEnd = /[;}]/g;
var reDeclDivider = /[;:}]/g;
var reNonWhitespace = /\S/g;
var Sizzle;
/**
* @param {string} cssText
* @constructor
*/
function Parser(cssText) {
this.cssText = cssText;
}
Parser.prototype = {
error: function error(position) {
throw new Error("CssParser: parse error at position ".concat(this.posOffset + position));
},
/**
* Validates that the tokens correspond to a valid selector.
* Sizzle is different from browsers and some selectors that it tolerates aren't actually valid.
* For instance, "div >" won't work in a browser, but it will in Sizzle (it'd be the same as "div > *").
*
* @param {*} selectors An array of SelectorData (selector, groups)
* @returns {boolean} false if any of the groups are invalid
*/
validateSelectors: function validateSelectors(selectors) {
var iSelectors = selectors.length;
while (iSelectors--) {
var groups = selectors[iSelectors].groups;
var iGroups = groups.length;
while (iGroups--) {
var tokens = groups[iGroups];
var lastToken = tokens[tokens.length - 1];
if (Sizzle.selectors.relative[lastToken.type]) {
return false;
}
}
}
return true;
},
/**
* Parses a stylesheet and returns a list of pairs of an ExtendedSelector and a styles map.
* This method will throw an error in case of an obviously invalid input.
* If any of the selectors used in the stylesheet cannot be compiled into an ExtendedSelector,
* it will be ignored.
*
* @typedef {Object} ExtendedStyle
* @property {Object} selector An instance of the {@link ExtendedSelector} class
* @property {Object} styleMap A map of styles parsed
*
* @returns {Array.<ExtendedStyle>} An array of the styles parsed
*/
parseCss: function parseCss() {
this.posOffset = 0;
if (!this.cssText) {
this.error(0);
}
var results = [];
while (this.cssText) {
// Apply tolerant tokenization.
var parseResult = Sizzle.tokenize(this.cssText, false, {
tolerant: true,
returnUnsorted: true
});
var selectorData = parseResult.selectors;
this.nextIndex = parseResult.nextIndex;
if (this.cssText.charCodeAt(this.nextIndex) !== 123 ||
/* charCode of '{' */
!this.validateSelectors(selectorData)) {
this.error(this.nextIndex);
}
this.nextIndex++; // Move the pointer to the start of style declaration.
var styleMap = this.parseNextStyle();
var debug = false; // If there is a style property 'debug', mark the selector
// as a debuggable selector, and delete the style declaration.
var debugPropertyValue = styleMap['debug'];
if (typeof debugPropertyValue !== 'undefined') {
if (debugPropertyValue === 'global') {
ExtendedSelectorFactory.enableGlobalDebugging();
}
debug = true;
delete styleMap['debug'];
} // Creating an ExtendedSelector instance for every selector we got from Sizzle.tokenize.
// This is quite important as Sizzle does a poor job at executing selectors like "selector1, selector2".
for (var i = 0, l = selectorData.length; i < l; i++) {
var data = selectorData[i];
try {
var extendedSelector = ExtendedSelectorFactory.createSelector(data.selectorText, data.groups, debug);
if (extendedSelector.pseudoClassArg && extendedSelector.isRemoveSelector) {
// if there is remove pseudo-class in rule,
// the element will be removed and no other styles will be applied
styleMap['remove'] = 'true';
}
results.push({
selector: extendedSelector,
style: styleMap
});
} catch (ex) {
utils.logError("ExtendedCssParser: ignoring invalid selector ".concat(data.selectorText));
}
}
}
return results;
},
parseNextStyle: function parseNextStyle() {
var styleMap = Object.create(null);
var bracketPos = this.parseUntilClosingBracket(styleMap); // Cut out matched portion from cssText.
reNonWhitespace.lastIndex = bracketPos + 1;
var match = reNonWhitespace.exec(this.cssText);
if (match === null) {
this.cssText = '';
return styleMap;
}
var matchPos = match.index;
this.cssText = this.cssText.slice(matchPos);
this.posOffset += matchPos;
return styleMap;
},
/**
* @return {number} an index of the next '}' in `this.cssText`.
*/
parseUntilClosingBracket: function parseUntilClosingBracket(styleMap) {
// Expects ":", ";", and "}".
reDeclDivider.lastIndex = this.nextIndex;
var match = reDeclDivider.exec(this.cssText);
if (match === null) {
this.error(this.nextIndex);
}
var matchPos = match.index;
var matched = match[0];
if (matched === '}') {
return matchPos;
}
if (matched === ':') {
var colonIndex = matchPos; // Expects ";" and "}".
reDeclEnd.lastIndex = colonIndex;
match = reDeclEnd.exec(this.cssText);
if (match === null) {
this.error(colonIndex);
}
matchPos = match.index;
matched = match[0]; // Populates the `styleMap` key-value map.
var property = this.cssText.slice(this.nextIndex, colonIndex).trim();
var value = this.cssText.slice(colonIndex + 1, matchPos).trim();
styleMap[property] = value; // If found "}", re-run the outer loop.
if (matched === '}') {
return matchPos;
}
} // matchPos is the position of the next ';'.
// Increase 'nextIndex' and re-run the loop.
this.nextIndex = matchPos + 1;
return this.parseUntilClosingBracket(styleMap); // Should be a subject of tail-call optimization.
}
};
return {
parseCss: function parseCss(cssText) {
Sizzle = initializeSizzle();
return new Parser(cssUtils.normalize(cssText)).parseCss();
}
};
}();
/**
* This callback is used to get affected node elements and handle style properties
* before they are applied to them if it is necessary
* @callback beforeStyleApplied
* @param {object} affectedElement - Object containing DOM node and rule to be applied
* @return {object} affectedElement - Same or modified object containing DOM node and rule to be applied
*/
/**
* Extended css class
*
* @param {Object} configuration
* @param {string} configuration.styleSheet - the CSS stylesheet text
* @param {beforeStyleApplied} [configuration.beforeStyleApplied] - the callback that handles affected elements
* @constructor
*/
function ExtendedCss(configuration) {
if (!configuration) {
throw new Error('Configuration is not provided.');
}
var styleSheet = configuration.styleSheet;
var beforeStyleApplied = configuration.beforeStyleApplied;
if (beforeStyleApplied && typeof beforeStyleApplied !== 'function') {
// eslint-disable-next-line max-len
throw new Error("Wrong configuration. Type of 'beforeStyleApplied' field should be a function, received: ".concat(_typeof(beforeStyleApplied)));
} // We use EventTracker to track the event that is likely to cause the mutation.
// The problem is that we cannot use `window.event` directly from the mutation observer call
// as we're not in the event handler context anymore.
var EventTracker = function () {
var ignoredEventTypes = ['mouseover', 'mouseleave', 'mouseenter', 'mouseout'];
var LAST_EVENT_TIMEOUT_MS = 10;
var EVENTS = [// keyboard events
'keydown', 'keypress', 'keyup', // mouse events
'auxclick', 'click', 'contextmenu', 'dblclick', 'mousedown', 'mouseenter', 'mouseleave', 'mousemove', 'mouseover', 'mouseout', 'mouseup', 'pointerlockchange', 'pointerlockerror', 'select', 'wheel']; // 'wheel' event makes scrolling in Safari twitchy
// https://github.com/AdguardTeam/ExtendedCss/issues/120
var safariProblematicEvents = ['wheel'];
var trackedEvents = utils.isSafariBrowser ? EVENTS.filter(function (el) {
return !(safariProblematicEvents.indexOf(el) > -1);
}) : EVENTS;
var lastEventType;
var lastEventTime;
var trackEvent = function trackEvent(e) {
lastEventType = e.type;
lastEventTime = Date.now();
};
trackedEvents.forEach(function (evName) {
document.documentElement.addEventListener(evName, trackEvent, true);
});
var getLastEventType = function getLastEventType() {
return lastEventType;
};
var getTimeSinceLastEvent = function getTimeSinceLastEvent() {
return Date.now() - lastEventTime;
};
return {
isIgnoredEventType: function isIgnoredEventType() {
return ignoredEventTypes.indexOf(getLastEventType()) > -1 && getTimeSinceLastEvent() < LAST_EVENT_TIMEOUT_MS;
}
};
}();
var rules = [];
var affectedElements = [];
var removalsStatistic = {};
var domObserved;
var eventListenerSupported = window.addEventListener;
var domMutationObserver;
function observeDocument(callback) {
// We are trying to limit the number of callback calls by not calling it on all kind of "hover" events.
// The rationale behind this is that "hover" events often cause attributes modification,
// but re-applying extCSS rules will be useless as these attribute changes are usually transient.
var isIgnoredMutation = function isIgnoredMutation(mutations) {
for (var i = 0; i < mutations.length; i += 1) {
if (mutations.type !== 'attributes') {
return false;
}
}
return true;
};
if (utils.MutationObserver) {
domMutationObserver = new utils.MutationObserver(function (mutations) {
if (!mutations || mutations.length === 0) {
return;
}
if (EventTracker.isIgnoredEventType() && isIgnoredMutation(mutations)) {
return;
}
callback();
});
domMutationObserver.observe(document, {
childList: true,
subtree: true,
attributes: true,
attributeFilter: ['id', 'class']
});
} else if (eventListenerSupported) {
document.addEventListener('DOMNodeInserted', callback, false);
document.addEventListener('DOMNodeRemoved', callback, false);
document.addEventListener('DOMAttrModified', callback, false);
}
}
function disconnectDocument(callback) {
if (domMutationObserver) {
domMutationObserver.disconnect();
} else if (eventListenerSupported) {
document.removeEventListener('DOMNodeInserted', callback, false);
document.removeEventListener('DOMNodeRemoved', callback, false);
document.removeEventListener('DOMAttrModified', callback, false);
}
}
var MAX_STYLE_PROTECTION_COUNT = 50;
var protectionObserverOption = {
attributes: true,
attributeOldValue: true,
attributeFilter: ['style']
};
/**
* Creates MutationObserver protection function
*
* @param styles
* @return {protectionFunction}
*/
function createProtectionFunction(styles) {
function protectionFunction(mutations, observer) {
if (!mutations.length) {
return;
}
var mutation = mutations[0];
var target = mutation.target;
observer.disconnect();
styles.forEach(function (style) {
setStyleToElement(target, style);
});
if (++observer.styleProtectionCount < MAX_STYLE_PROTECTION_COUNT) {
observer.observe(target, protectionObserverOption);
} else {
utils.logError('ExtendedCss: infinite loop protection for style');
}
}
return protectionFunction;
}
/**
* Sets up a MutationObserver which protects style attributes from changes
* @param node DOM node
* @param rules rules
* @returns Mutation observer used to protect attribute or null if there's nothing to protect
*/
function protectStyleAttribute(node, rules) {
if (!utils.MutationObserver) {
return null;
}
var styles = rules.map(function (r) {
return r.style;
});
var protectionObserver = new utils.MutationObserver(createProtectionFunction(styles));
protectionObserver.observe(node, protectionObserverOption); // Adds an expando to the observer to keep 'style fix counts'.
protectionObserver.styleProtectionCount = 0;
return protectionObserver;
}
function removeSuffix(str, suffix) {
var index = str.indexOf(suffix, str.length - suffix.length);
if (index >= 0) {
return str.substring(0, index);
}
return str;
}
/**
* Finds affectedElement object for the specified DOM node
* @param node DOM node
* @returns affectedElement found or null
*/
function findAffectedElement(node) {
for (var i = 0; i < affectedElements.length; i += 1) {
if (affectedElements[i].node === node) {
return affectedElements[i];
}
}
return null;
}
function removeElement(affectedElement) {
var node = affectedElement.node;
affectedElement.removed = true;
var elementSelector = utils.getNodeSelector(node); // check if the element has been already removed earlier
var elementRemovalsCounter = removalsStatistic[elementSelector] || 0; // if removals attempts happened more than specified we do not try to remove node again
if (elementRemovalsCounter > MAX_STYLE_PROTECTION_COUNT) {
utils.logError('ExtendedCss: infinite loop protection for SELECTOR', elementSelector);
return;
}
if (node.parentNode) {
node.parentNode.removeChild(node);
removalsStatistic[elementSelector] = elementRemovalsCounter + 1;
}
}
/**
* Applies style to the specified DOM node
* @param affectedElement Object containing DOM node and rule to be applied
*/
function applyStyle(affectedElement) {
if (affectedElement.protectionObserver) {
// Style is already applied and protected by the observer
return;
}
if (beforeStyleApplied) {
affectedElement = beforeStyleApplied(affectedElement);
if (!affectedElement) {
return;
}
}
var _affectedElement = affectedElement,
node = _affectedElement.node;
for (var i = 0; i < affectedElement.rules.length; i++) {
var style = affectedElement.rules[i].style;
if (style['remove'] === 'true') {
removeElement(affectedElement);
return;
}
setStyleToElement(node, style);
}
}
/**
* Sets style to the specified DOM node
* @param node element
* @param style style
*/
function setStyleToElement(node, style) {
Object.keys(style).forEach(function (prop) {
// Apply this style only to existing properties
// We can't use hasOwnProperty here (does not work in FF)
if (typeof node.style.getPropertyValue(prop) !== 'undefined') {
var value = style[prop]; // First we should remove !important attribute (or it won't be applied')
value = removeSuffix(value.trim(), '!important').trim();
node.style.setProperty(prop, value, 'important');
}
});
}
/**
* Reverts style for the affected object
*/
function revertStyle(affectedElement) {
if (affectedElement.protectionObserver) {
affectedElement.protectionObserver.disconnect();
}
affectedElement.node.style.cssText = affectedElement.originalStyle;
}
/**
* Applies specified rule and returns list of elements affected
* @param rule Rule to apply
* @returns List of elements affected by this rule
*/
function applyRule(rule) {
var debug = rule.selector.isDebugging();
var start;
if (debug) {
start = utils.AsyncWrapper.now();
}
var selector = rule.selector;
var nodes = selector.querySelectorAll();
nodes.forEach(function (node) {
var affectedElement = findAffectedElement(node);
if (affectedElement) {
affectedElement.rules.push(rule);
applyStyle(affectedElement);
} else {
// Applying style first time
var originalStyle = node.style.cssText;
affectedElement = {
node: node,
// affected DOM node
rules: [rule],
// rules to be applied
originalStyle: originalStyle,
// original node style
protectionObserver: null // style attribute observer
};
applyStyle(affectedElement);
affectedElements.push(affectedElement);
}
});
if (debug) {
var elapsed = utils.AsyncWrapper.now() - start;
if (!('timingStats' in rule)) {
rule.timingStats = new utils.Stats();
}
rule.timingStats.push(elapsed);
}
return nodes;
}
/**
* Applies filtering rules
*/
function applyRules() {
var elementsIndex = []; // some rules could make call - selector.querySelectorAll() temporarily to change node id attribute
// this caused MutationObserver to call recursively
// https://github.com/AdguardTeam/ExtendedCss/issues/81
stopObserve();
rules.forEach(function (rule) {
var nodes = applyRule(rule);
Array.prototype.push.apply(elementsIndex, nodes);
}); // Now revert styles for elements which are no more affected
var l = affectedElements.length; // do nothing if there is no elements to process
if (elementsIndex.length > 0) {
while (l--) {
var obj = affectedElements[l];
if (elementsIndex.indexOf(obj.node) === -1) {
// Time to revert style
revertStyle(obj);
affectedElements.splice(l, 1);
} else if (!obj.removed) {
// Add style protection observer
// Protect "style" attribute from changes
if (!obj.protectionObserver) {
obj.protectionObserver = protectStyleAttribute(obj.node, obj.rules);
}
}
}
} // After styles are applied we can start observe again
observe();
printTimingInfo();
}
var APPLY_RULES_DELAY = 150;
var applyRulesScheduler = new utils.AsyncWrapper(applyRules, APPLY_RULES_DELAY);
var mainCallback = applyRulesScheduler.run.bind(applyRulesScheduler);
function observe() {
if (domObserved) {
return;
} // Handle dynamically added elements
domObserved = true;
observeDocument(mainCallback);
}
function stopObserve() {
if (!domObserved) {
return;
}
domObserved = false;
disconnectDocument(mainCallback);
}
function apply() {
applyRules();
if (document.readyState !== 'complete') {
document.addEventListener('DOMContentLoaded', applyRules);
}
}
/**
* Disposes ExtendedCss and removes our styles from matched elements
*/
function dispose() {
stopObserve();
affectedElements.forEach(function (obj) {
revertStyle(obj);
});
}
var timingsPrinted = false;
/**
* Prints timing information for all selectors marked as "debug"
*/
function printTimingInfo() {
if (timingsPrinted) {
return;
}
timingsPrinted = true;
var timings = rules.filter(function (rule) {
return rule.selector.isDebugging();
}).map(function (rule) {
return {
selectorText: rule.selector.selectorText,
timingStats: rule.timingStats
};
});
if (timings.length === 0) {
return;
} // Add location.href to the message to distinguish frames
utils.logInfo('[ExtendedCss] Timings for %o:\n%o (in milliseconds)', window.location.href, timings);
} // First of all parse the stylesheet
rules = ExtendedCssParser.parseCss(styleSheet); // EXPOSE
this.dispose = dispose;
this.apply = apply;
/** Exposed for testing purposes only */
this._getAffectedElements = function () {
return affectedElements;
};
}
/**
* Expose querySelectorAll for debugging and validating selectors
*
* @param {string} selectorText selector text
* @param {boolean} noTiming if true -- do not print the timing to the console
* @returns {Array<Node>|NodeList} a list of elements found
* @throws Will throw an error if the argument is not a valid selector
*/
ExtendedCss.query = function (selectorText, noTiming) {
if (typeof selectorText !== 'string') {
throw new Error('Selector text is empty');
}
var now = utils.AsyncWrapper.now;
var start = now();
try {
return ExtendedSelectorFactory.createSelector(selectorText).querySelectorAll();
} finally {
var end = now();
if (!noTiming) {
utils.logInfo("[ExtendedCss] Elapsed: ".concat(Math.round((end - start) * 1000), " \u03BCs."));
}
}
};
return ExtendedCss;
}());
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