mirror of
https://github.com/jquery/jquery.git
synced 2024-12-09 08:04:24 +00:00
2479 lines
69 KiB
JavaScript
2479 lines
69 KiB
JavaScript
/*!
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* Sizzle CSS Selector Engine v2.3.6
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* https://sizzlejs.com/
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*
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* Copyright JS Foundation and other contributors
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* Released under the MIT license
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* https://js.foundation/
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*
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* Date: 2021-02-16
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*/
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( function( window ) {
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var i,
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support,
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Expr,
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getText,
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isXML,
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tokenize,
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compile,
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select,
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outermostContext,
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sortInput,
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hasDuplicate,
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// Local document vars
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setDocument,
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document,
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docElem,
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documentIsHTML,
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rbuggyQSA,
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rbuggyMatches,
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matches,
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contains,
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// Instance-specific data
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expando = "sizzle" + 1 * new Date(),
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preferredDoc = window.document,
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dirruns = 0,
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done = 0,
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classCache = createCache(),
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tokenCache = createCache(),
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compilerCache = createCache(),
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nonnativeSelectorCache = createCache(),
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sortOrder = function( a, b ) {
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if ( a === b ) {
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hasDuplicate = true;
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}
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return 0;
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},
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// Instance methods
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hasOwn = ( {} ).hasOwnProperty,
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arr = [],
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pop = arr.pop,
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pushNative = arr.push,
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push = arr.push,
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slice = arr.slice,
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// Use a stripped-down indexOf as it's faster than native
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// https://jsperf.com/thor-indexof-vs-for/5
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indexOf = function( list, elem ) {
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var i = 0,
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len = list.length;
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for ( ; i < len; i++ ) {
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if ( list[ i ] === elem ) {
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return i;
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}
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}
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return -1;
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},
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booleans = "checked|selected|async|autofocus|autoplay|controls|defer|disabled|hidden|" +
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"ismap|loop|multiple|open|readonly|required|scoped",
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// Regular expressions
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// http://www.w3.org/TR/css3-selectors/#whitespace
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whitespace = "[\\x20\\t\\r\\n\\f]",
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// https://www.w3.org/TR/css-syntax-3/#ident-token-diagram
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identifier = "(?:\\\\[\\da-fA-F]{1,6}" + whitespace +
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"?|\\\\[^\\r\\n\\f]|[\\w-]|[^\0-\\x7f])+",
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// Attribute selectors: http://www.w3.org/TR/selectors/#attribute-selectors
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attributes = "\\[" + whitespace + "*(" + identifier + ")(?:" + whitespace +
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// Operator (capture 2)
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"*([*^$|!~]?=)" + whitespace +
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// "Attribute values must be CSS identifiers [capture 5]
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// or strings [capture 3 or capture 4]"
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"*(?:'((?:\\\\.|[^\\\\'])*)'|\"((?:\\\\.|[^\\\\\"])*)\"|(" + identifier + "))|)" +
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whitespace + "*\\]",
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pseudos = ":(" + identifier + ")(?:\\((" +
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// To reduce the number of selectors needing tokenize in the preFilter, prefer arguments:
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// 1. quoted (capture 3; capture 4 or capture 5)
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"('((?:\\\\.|[^\\\\'])*)'|\"((?:\\\\.|[^\\\\\"])*)\")|" +
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// 2. simple (capture 6)
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"((?:\\\\.|[^\\\\()[\\]]|" + attributes + ")*)|" +
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// 3. anything else (capture 2)
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".*" +
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")\\)|)",
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// Leading and non-escaped trailing whitespace, capturing some non-whitespace characters preceding the latter
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rwhitespace = new RegExp( whitespace + "+", "g" ),
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rtrim = new RegExp( "^" + whitespace + "+|((?:^|[^\\\\])(?:\\\\.)*)" +
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whitespace + "+$", "g" ),
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rcomma = new RegExp( "^" + whitespace + "*," + whitespace + "*" ),
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rcombinators = new RegExp( "^" + whitespace + "*([>+~]|" + whitespace + ")" + whitespace +
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"*" ),
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rdescend = new RegExp( whitespace + "|>" ),
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rpseudo = new RegExp( pseudos ),
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ridentifier = new RegExp( "^" + identifier + "$" ),
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matchExpr = {
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"ID": new RegExp( "^#(" + identifier + ")" ),
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"CLASS": new RegExp( "^\\.(" + identifier + ")" ),
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"TAG": new RegExp( "^(" + identifier + "|[*])" ),
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"ATTR": new RegExp( "^" + attributes ),
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"PSEUDO": new RegExp( "^" + pseudos ),
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"CHILD": new RegExp( "^:(only|first|last|nth|nth-last)-(child|of-type)(?:\\(" +
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whitespace + "*(even|odd|(([+-]|)(\\d*)n|)" + whitespace + "*(?:([+-]|)" +
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whitespace + "*(\\d+)|))" + whitespace + "*\\)|)", "i" ),
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"bool": new RegExp( "^(?:" + booleans + ")$", "i" ),
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// For use in libraries implementing .is()
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// We use this for POS matching in `select`
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"needsContext": new RegExp( "^" + whitespace +
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"*[>+~]|:(even|odd|eq|gt|lt|nth|first|last)(?:\\(" + whitespace +
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"*((?:-\\d)?\\d*)" + whitespace + "*\\)|)(?=[^-]|$)", "i" )
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},
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rhtml = /HTML$/i,
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rinputs = /^(?:input|select|textarea|button)$/i,
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rheader = /^h\d$/i,
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rnative = /^[^{]+\{\s*\[native \w/,
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// Easily-parseable/retrievable ID or TAG or CLASS selectors
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rquickExpr = /^(?:#([\w-]+)|(\w+)|\.([\w-]+))$/,
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rsibling = /[+~]/,
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// CSS escapes
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// http://www.w3.org/TR/CSS21/syndata.html#escaped-characters
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runescape = new RegExp( "\\\\[\\da-fA-F]{1,6}" + whitespace + "?|\\\\([^\\r\\n\\f])", "g" ),
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funescape = function( escape, nonHex ) {
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var high = "0x" + escape.slice( 1 ) - 0x10000;
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return nonHex ?
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// Strip the backslash prefix from a non-hex escape sequence
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nonHex :
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// Replace a hexadecimal escape sequence with the encoded Unicode code point
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// Support: IE <=11+
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// For values outside the Basic Multilingual Plane (BMP), manually construct a
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// surrogate pair
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high < 0 ?
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String.fromCharCode( high + 0x10000 ) :
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String.fromCharCode( high >> 10 | 0xD800, high & 0x3FF | 0xDC00 );
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},
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// CSS string/identifier serialization
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// https://drafts.csswg.org/cssom/#common-serializing-idioms
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rcssescape = /([\0-\x1f\x7f]|^-?\d)|^-$|[^\0-\x1f\x7f-\uFFFF\w-]/g,
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fcssescape = function( ch, asCodePoint ) {
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if ( asCodePoint ) {
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// U+0000 NULL becomes U+FFFD REPLACEMENT CHARACTER
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if ( ch === "\0" ) {
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return "\uFFFD";
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}
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// Control characters and (dependent upon position) numbers get escaped as code points
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return ch.slice( 0, -1 ) + "\\" +
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ch.charCodeAt( ch.length - 1 ).toString( 16 ) + " ";
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}
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// Other potentially-special ASCII characters get backslash-escaped
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return "\\" + ch;
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},
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// Used for iframes
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// See setDocument()
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// Removing the function wrapper causes a "Permission Denied"
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// error in IE
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unloadHandler = function() {
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setDocument();
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},
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inDisabledFieldset = addCombinator(
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function( elem ) {
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return elem.disabled === true && elem.nodeName.toLowerCase() === "fieldset";
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},
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{ dir: "parentNode", next: "legend" }
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);
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// Optimize for push.apply( _, NodeList )
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try {
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push.apply(
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( arr = slice.call( preferredDoc.childNodes ) ),
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preferredDoc.childNodes
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);
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// Support: Android<4.0
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// Detect silently failing push.apply
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// eslint-disable-next-line no-unused-expressions
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arr[ preferredDoc.childNodes.length ].nodeType;
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} catch ( e ) {
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push = { apply: arr.length ?
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// Leverage slice if possible
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function( target, els ) {
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pushNative.apply( target, slice.call( els ) );
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} :
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// Support: IE<9
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// Otherwise append directly
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function( target, els ) {
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var j = target.length,
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i = 0;
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// Can't trust NodeList.length
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while ( ( target[ j++ ] = els[ i++ ] ) ) {}
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target.length = j - 1;
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}
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};
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}
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function Sizzle( selector, context, results, seed ) {
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var m, i, elem, nid, match, groups, newSelector,
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newContext = context && context.ownerDocument,
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// nodeType defaults to 9, since context defaults to document
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nodeType = context ? context.nodeType : 9;
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results = results || [];
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// Return early from calls with invalid selector or context
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if ( typeof selector !== "string" || !selector ||
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nodeType !== 1 && nodeType !== 9 && nodeType !== 11 ) {
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return results;
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}
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// Try to shortcut find operations (as opposed to filters) in HTML documents
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if ( !seed ) {
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setDocument( context );
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context = context || document;
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if ( documentIsHTML ) {
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// If the selector is sufficiently simple, try using a "get*By*" DOM method
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// (excepting DocumentFragment context, where the methods don't exist)
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if ( nodeType !== 11 && ( match = rquickExpr.exec( selector ) ) ) {
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// ID selector
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if ( ( m = match[ 1 ] ) ) {
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// Document context
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if ( nodeType === 9 ) {
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if ( ( elem = context.getElementById( m ) ) ) {
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// Support: IE, Opera, Webkit
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// TODO: identify versions
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// getElementById can match elements by name instead of ID
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if ( elem.id === m ) {
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results.push( elem );
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return results;
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}
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} else {
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return results;
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}
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// Element context
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} else {
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// Support: IE, Opera, Webkit
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// TODO: identify versions
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// getElementById can match elements by name instead of ID
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if ( newContext && ( elem = newContext.getElementById( m ) ) &&
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contains( context, elem ) &&
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elem.id === m ) {
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results.push( elem );
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return results;
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}
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}
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// Type selector
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} else if ( match[ 2 ] ) {
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push.apply( results, context.getElementsByTagName( selector ) );
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return results;
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// Class selector
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} else if ( ( m = match[ 3 ] ) && support.getElementsByClassName &&
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context.getElementsByClassName ) {
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push.apply( results, context.getElementsByClassName( m ) );
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return results;
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}
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}
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// Take advantage of querySelectorAll
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if ( support.qsa &&
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!nonnativeSelectorCache[ selector + " " ] &&
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( !rbuggyQSA || !rbuggyQSA.test( selector ) ) &&
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// Support: IE 8 only
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// Exclude object elements
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( nodeType !== 1 || context.nodeName.toLowerCase() !== "object" ) ) {
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newSelector = selector;
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newContext = context;
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// qSA considers elements outside a scoping root when evaluating child or
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// descendant combinators, which is not what we want.
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// In such cases, we work around the behavior by prefixing every selector in the
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// list with an ID selector referencing the scope context.
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// The technique has to be used as well when a leading combinator is used
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// as such selectors are not recognized by querySelectorAll.
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// Thanks to Andrew Dupont for this technique.
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if ( nodeType === 1 &&
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( rdescend.test( selector ) || rcombinators.test( selector ) ) ) {
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// Expand context for sibling selectors
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newContext = rsibling.test( selector ) && testContext( context.parentNode ) ||
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context;
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// We can use :scope instead of the ID hack if the browser
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// supports it & if we're not changing the context.
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if ( newContext !== context || !support.scope ) {
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// Capture the context ID, setting it first if necessary
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if ( ( nid = context.getAttribute( "id" ) ) ) {
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nid = nid.replace( rcssescape, fcssescape );
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} else {
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context.setAttribute( "id", ( nid = expando ) );
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}
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}
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// Prefix every selector in the list
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groups = tokenize( selector );
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i = groups.length;
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while ( i-- ) {
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groups[ i ] = ( nid ? "#" + nid : ":scope" ) + " " +
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toSelector( groups[ i ] );
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}
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newSelector = groups.join( "," );
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}
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try {
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push.apply( results,
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newContext.querySelectorAll( newSelector )
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);
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return results;
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} catch ( qsaError ) {
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nonnativeSelectorCache( selector, true );
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} finally {
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if ( nid === expando ) {
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context.removeAttribute( "id" );
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}
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}
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}
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}
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}
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// All others
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return select( selector.replace( rtrim, "$1" ), context, results, seed );
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}
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/**
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* Create key-value caches of limited size
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* @returns {function(string, object)} Returns the Object data after storing it on itself with
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* property name the (space-suffixed) string and (if the cache is larger than Expr.cacheLength)
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* deleting the oldest entry
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*/
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function createCache() {
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var keys = [];
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function cache( key, value ) {
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// Use (key + " ") to avoid collision with native prototype properties (see Issue #157)
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if ( keys.push( key + " " ) > Expr.cacheLength ) {
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// Only keep the most recent entries
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delete cache[ keys.shift() ];
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}
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return ( cache[ key + " " ] = value );
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}
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return cache;
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}
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/**
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* Mark a function for special use by Sizzle
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* @param {Function} fn The function to mark
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*/
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function markFunction( fn ) {
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fn[ expando ] = true;
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return fn;
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}
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/**
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* Support testing using an element
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* @param {Function} fn Passed the created element and returns a boolean result
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*/
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function assert( fn ) {
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var el = document.createElement( "fieldset" );
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try {
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return !!fn( el );
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} catch ( e ) {
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return false;
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} finally {
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// Remove from its parent by default
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if ( el.parentNode ) {
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el.parentNode.removeChild( el );
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}
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// release memory in IE
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el = null;
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}
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}
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/**
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* Adds the same handler for all of the specified attrs
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* @param {String} attrs Pipe-separated list of attributes
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* @param {Function} handler The method that will be applied
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*/
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function addHandle( attrs, handler ) {
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var arr = attrs.split( "|" ),
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i = arr.length;
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while ( i-- ) {
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Expr.attrHandle[ arr[ i ] ] = handler;
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}
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}
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/**
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* Checks document order of two siblings
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* @param {Element} a
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* @param {Element} b
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* @returns {Number} Returns less than 0 if a precedes b, greater than 0 if a follows b
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*/
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function siblingCheck( a, b ) {
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var cur = b && a,
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diff = cur && a.nodeType === 1 && b.nodeType === 1 &&
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a.sourceIndex - b.sourceIndex;
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// Use IE sourceIndex if available on both nodes
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if ( diff ) {
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return diff;
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}
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// Check if b follows a
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if ( cur ) {
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while ( ( cur = cur.nextSibling ) ) {
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if ( cur === b ) {
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return -1;
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}
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}
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}
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return a ? 1 : -1;
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}
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/**
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* Returns a function to use in pseudos for input types
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* @param {String} type
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*/
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function createInputPseudo( type ) {
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return function( elem ) {
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var name = elem.nodeName.toLowerCase();
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return name === "input" && elem.type === type;
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};
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}
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/**
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* Returns a function to use in pseudos for buttons
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* @param {String} type
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*/
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function createButtonPseudo( type ) {
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return function( elem ) {
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var name = elem.nodeName.toLowerCase();
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return ( name === "input" || name === "button" ) && elem.type === type;
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};
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}
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/**
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* Returns a function to use in pseudos for :enabled/:disabled
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* @param {Boolean} disabled true for :disabled; false for :enabled
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*/
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function createDisabledPseudo( disabled ) {
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// Known :disabled false positives: fieldset[disabled] > legend:nth-of-type(n+2) :can-disable
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return function( elem ) {
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// Only certain elements can match :enabled or :disabled
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// https://html.spec.whatwg.org/multipage/scripting.html#selector-enabled
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// https://html.spec.whatwg.org/multipage/scripting.html#selector-disabled
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if ( "form" in elem ) {
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// Check for inherited disabledness on relevant non-disabled elements:
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// * listed form-associated elements in a disabled fieldset
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// https://html.spec.whatwg.org/multipage/forms.html#category-listed
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// https://html.spec.whatwg.org/multipage/forms.html#concept-fe-disabled
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// * option elements in a disabled optgroup
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// https://html.spec.whatwg.org/multipage/forms.html#concept-option-disabled
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// All such elements have a "form" property.
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if ( elem.parentNode && elem.disabled === false ) {
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// Option elements defer to a parent optgroup if present
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if ( "label" in elem ) {
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if ( "label" in elem.parentNode ) {
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return elem.parentNode.disabled === disabled;
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} else {
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return elem.disabled === disabled;
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}
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}
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// Support: IE 6 - 11
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// Use the isDisabled shortcut property to check for disabled fieldset ancestors
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return elem.isDisabled === disabled ||
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// Where there is no isDisabled, check manually
|
|
/* jshint -W018 */
|
|
elem.isDisabled !== !disabled &&
|
|
inDisabledFieldset( elem ) === disabled;
|
|
}
|
|
|
|
return elem.disabled === disabled;
|
|
|
|
// Try to winnow out elements that can't be disabled before trusting the disabled property.
|
|
// Some victims get caught in our net (label, legend, menu, track), but it shouldn't
|
|
// even exist on them, let alone have a boolean value.
|
|
} else if ( "label" in elem ) {
|
|
return elem.disabled === disabled;
|
|
}
|
|
|
|
// Remaining elements are neither :enabled nor :disabled
|
|
return false;
|
|
};
|
|
}
|
|
|
|
/**
|
|
* Returns a function to use in pseudos for positionals
|
|
* @param {Function} fn
|
|
*/
|
|
function createPositionalPseudo( fn ) {
|
|
return markFunction( function( argument ) {
|
|
argument = +argument;
|
|
return markFunction( function( seed, matches ) {
|
|
var j,
|
|
matchIndexes = fn( [], seed.length, argument ),
|
|
i = matchIndexes.length;
|
|
|
|
// Match elements found at the specified indexes
|
|
while ( i-- ) {
|
|
if ( seed[ ( j = matchIndexes[ i ] ) ] ) {
|
|
seed[ j ] = !( matches[ j ] = seed[ j ] );
|
|
}
|
|
}
|
|
} );
|
|
} );
|
|
}
|
|
|
|
/**
|
|
* Checks a node for validity as a Sizzle context
|
|
* @param {Element|Object=} context
|
|
* @returns {Element|Object|Boolean} The input node if acceptable, otherwise a falsy value
|
|
*/
|
|
function testContext( context ) {
|
|
return context && typeof context.getElementsByTagName !== "undefined" && context;
|
|
}
|
|
|
|
// Expose support vars for convenience
|
|
support = Sizzle.support = {};
|
|
|
|
/**
|
|
* Detects XML nodes
|
|
* @param {Element|Object} elem An element or a document
|
|
* @returns {Boolean} True iff elem is a non-HTML XML node
|
|
*/
|
|
isXML = Sizzle.isXML = function( elem ) {
|
|
var namespace = elem && elem.namespaceURI,
|
|
docElem = elem && ( elem.ownerDocument || elem ).documentElement;
|
|
|
|
// Support: IE <=8
|
|
// Assume HTML when documentElement doesn't yet exist, such as inside loading iframes
|
|
// https://bugs.jquery.com/ticket/4833
|
|
return !rhtml.test( namespace || docElem && docElem.nodeName || "HTML" );
|
|
};
|
|
|
|
/**
|
|
* Sets document-related variables once based on the current document
|
|
* @param {Element|Object} [doc] An element or document object to use to set the document
|
|
* @returns {Object} Returns the current document
|
|
*/
|
|
setDocument = Sizzle.setDocument = function( node ) {
|
|
var hasCompare, subWindow,
|
|
doc = node ? node.ownerDocument || node : preferredDoc;
|
|
|
|
// Return early if doc is invalid or already selected
|
|
// Support: IE 11+, Edge 17 - 18+
|
|
// IE/Edge sometimes throw a "Permission denied" error when strict-comparing
|
|
// two documents; shallow comparisons work.
|
|
// eslint-disable-next-line eqeqeq
|
|
if ( doc == document || doc.nodeType !== 9 || !doc.documentElement ) {
|
|
return document;
|
|
}
|
|
|
|
// Update global variables
|
|
document = doc;
|
|
docElem = document.documentElement;
|
|
documentIsHTML = !isXML( document );
|
|
|
|
// Support: IE 9 - 11+, Edge 12 - 18+
|
|
// Accessing iframe documents after unload throws "permission denied" errors (jQuery #13936)
|
|
// Support: IE 11+, Edge 17 - 18+
|
|
// IE/Edge sometimes throw a "Permission denied" error when strict-comparing
|
|
// two documents; shallow comparisons work.
|
|
// eslint-disable-next-line eqeqeq
|
|
if ( preferredDoc != document &&
|
|
( subWindow = document.defaultView ) && subWindow.top !== subWindow ) {
|
|
|
|
// Support: IE 11, Edge
|
|
if ( subWindow.addEventListener ) {
|
|
subWindow.addEventListener( "unload", unloadHandler, false );
|
|
|
|
// Support: IE 9 - 10 only
|
|
} else if ( subWindow.attachEvent ) {
|
|
subWindow.attachEvent( "onunload", unloadHandler );
|
|
}
|
|
}
|
|
|
|
// Support: IE 8 - 11+, Edge 12 - 18+, Chrome <=16 - 25 only, Firefox <=3.6 - 31 only,
|
|
// Safari 4 - 5 only, Opera <=11.6 - 12.x only
|
|
// IE/Edge & older browsers don't support the :scope pseudo-class.
|
|
// Support: Safari 6.0 only
|
|
// Safari 6.0 supports :scope but it's an alias of :root there.
|
|
support.scope = assert( function( el ) {
|
|
docElem.appendChild( el ).appendChild( document.createElement( "div" ) );
|
|
return typeof el.querySelectorAll !== "undefined" &&
|
|
!el.querySelectorAll( ":scope fieldset div" ).length;
|
|
} );
|
|
|
|
/* Attributes
|
|
---------------------------------------------------------------------- */
|
|
|
|
// Support: IE<8
|
|
// Verify that getAttribute really returns attributes and not properties
|
|
// (excepting IE8 booleans)
|
|
support.attributes = assert( function( el ) {
|
|
el.className = "i";
|
|
return !el.getAttribute( "className" );
|
|
} );
|
|
|
|
/* getElement(s)By*
|
|
---------------------------------------------------------------------- */
|
|
|
|
// Check if getElementsByTagName("*") returns only elements
|
|
support.getElementsByTagName = assert( function( el ) {
|
|
el.appendChild( document.createComment( "" ) );
|
|
return !el.getElementsByTagName( "*" ).length;
|
|
} );
|
|
|
|
// Support: IE<9
|
|
support.getElementsByClassName = rnative.test( document.getElementsByClassName );
|
|
|
|
// Support: IE<10
|
|
// Check if getElementById returns elements by name
|
|
// The broken getElementById methods don't pick up programmatically-set names,
|
|
// so use a roundabout getElementsByName test
|
|
support.getById = assert( function( el ) {
|
|
docElem.appendChild( el ).id = expando;
|
|
return !document.getElementsByName || !document.getElementsByName( expando ).length;
|
|
} );
|
|
|
|
// ID filter and find
|
|
if ( support.getById ) {
|
|
Expr.filter[ "ID" ] = function( id ) {
|
|
var attrId = id.replace( runescape, funescape );
|
|
return function( elem ) {
|
|
return elem.getAttribute( "id" ) === attrId;
|
|
};
|
|
};
|
|
Expr.find[ "ID" ] = function( id, context ) {
|
|
if ( typeof context.getElementById !== "undefined" && documentIsHTML ) {
|
|
var elem = context.getElementById( id );
|
|
return elem ? [ elem ] : [];
|
|
}
|
|
};
|
|
} else {
|
|
Expr.filter[ "ID" ] = function( id ) {
|
|
var attrId = id.replace( runescape, funescape );
|
|
return function( elem ) {
|
|
var node = typeof elem.getAttributeNode !== "undefined" &&
|
|
elem.getAttributeNode( "id" );
|
|
return node && node.value === attrId;
|
|
};
|
|
};
|
|
|
|
// Support: IE 6 - 7 only
|
|
// getElementById is not reliable as a find shortcut
|
|
Expr.find[ "ID" ] = function( id, context ) {
|
|
if ( typeof context.getElementById !== "undefined" && documentIsHTML ) {
|
|
var node, i, elems,
|
|
elem = context.getElementById( id );
|
|
|
|
if ( elem ) {
|
|
|
|
// Verify the id attribute
|
|
node = elem.getAttributeNode( "id" );
|
|
if ( node && node.value === id ) {
|
|
return [ elem ];
|
|
}
|
|
|
|
// Fall back on getElementsByName
|
|
elems = context.getElementsByName( id );
|
|
i = 0;
|
|
while ( ( elem = elems[ i++ ] ) ) {
|
|
node = elem.getAttributeNode( "id" );
|
|
if ( node && node.value === id ) {
|
|
return [ elem ];
|
|
}
|
|
}
|
|
}
|
|
|
|
return [];
|
|
}
|
|
};
|
|
}
|
|
|
|
// Tag
|
|
Expr.find[ "TAG" ] = support.getElementsByTagName ?
|
|
function( tag, context ) {
|
|
if ( typeof context.getElementsByTagName !== "undefined" ) {
|
|
return context.getElementsByTagName( tag );
|
|
|
|
// DocumentFragment nodes don't have gEBTN
|
|
} else if ( support.qsa ) {
|
|
return context.querySelectorAll( tag );
|
|
}
|
|
} :
|
|
|
|
function( tag, context ) {
|
|
var elem,
|
|
tmp = [],
|
|
i = 0,
|
|
|
|
// By happy coincidence, a (broken) gEBTN appears on DocumentFragment nodes too
|
|
results = context.getElementsByTagName( tag );
|
|
|
|
// Filter out possible comments
|
|
if ( tag === "*" ) {
|
|
while ( ( elem = results[ i++ ] ) ) {
|
|
if ( elem.nodeType === 1 ) {
|
|
tmp.push( elem );
|
|
}
|
|
}
|
|
|
|
return tmp;
|
|
}
|
|
return results;
|
|
};
|
|
|
|
// Class
|
|
Expr.find[ "CLASS" ] = support.getElementsByClassName && function( className, context ) {
|
|
if ( typeof context.getElementsByClassName !== "undefined" && documentIsHTML ) {
|
|
return context.getElementsByClassName( className );
|
|
}
|
|
};
|
|
|
|
/* QSA/matchesSelector
|
|
---------------------------------------------------------------------- */
|
|
|
|
// QSA and matchesSelector support
|
|
|
|
// matchesSelector(:active) reports false when true (IE9/Opera 11.5)
|
|
rbuggyMatches = [];
|
|
|
|
// qSa(:focus) reports false when true (Chrome 21)
|
|
// We allow this because of a bug in IE8/9 that throws an error
|
|
// whenever `document.activeElement` is accessed on an iframe
|
|
// So, we allow :focus to pass through QSA all the time to avoid the IE error
|
|
// See https://bugs.jquery.com/ticket/13378
|
|
rbuggyQSA = [];
|
|
|
|
if ( ( support.qsa = rnative.test( document.querySelectorAll ) ) ) {
|
|
|
|
// Build QSA regex
|
|
// Regex strategy adopted from Diego Perini
|
|
assert( function( el ) {
|
|
|
|
var input;
|
|
|
|
// Select is set to empty string on purpose
|
|
// This is to test IE's treatment of not explicitly
|
|
// setting a boolean content attribute,
|
|
// since its presence should be enough
|
|
// https://bugs.jquery.com/ticket/12359
|
|
docElem.appendChild( el ).innerHTML = "<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( "~=" );
|
|
}
|
|
|
|
// Support: IE 11+, Edge 15 - 18+
|
|
// IE 11/Edge don't find elements on a `[name='']` query in some cases.
|
|
// Adding a temporary attribute to the document before the selection works
|
|
// around the issue.
|
|
// Interestingly, IE 10 & older don't seem to have the issue.
|
|
input = document.createElement( "input" );
|
|
input.setAttribute( "name", "" );
|
|
el.appendChild( input );
|
|
if ( !el.querySelectorAll( "[name='']" ).length ) {
|
|
rbuggyQSA.push( "\\[" + whitespace + "*name" + whitespace + "*=" +
|
|
whitespace + "*(?:''|\"\")" );
|
|
}
|
|
|
|
// Webkit/Opera - :checked should return selected option elements
|
|
// http://www.w3.org/TR/2011/REC-css3-selectors-20110929/#checked
|
|
// IE8 throws error here and will not see later tests
|
|
if ( !el.querySelectorAll( ":checked" ).length ) {
|
|
rbuggyQSA.push( ":checked" );
|
|
}
|
|
|
|
// Support: Safari 8+, iOS 8+
|
|
// https://bugs.webkit.org/show_bug.cgi?id=136851
|
|
// In-page `selector#id sibling-combinator selector` fails
|
|
if ( !el.querySelectorAll( "a#" + expando + "+*" ).length ) {
|
|
rbuggyQSA.push( ".#.+[+~]" );
|
|
}
|
|
|
|
// Support: Firefox <=3.6 - 5 only
|
|
// Old Firefox doesn't throw on a badly-escaped identifier.
|
|
el.querySelectorAll( "\\\f" );
|
|
rbuggyQSA.push( "[\\r\\n\\f]" );
|
|
} );
|
|
|
|
assert( function( el ) {
|
|
el.innerHTML = "<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" );
|
|
}
|
|
|
|
// Support: Opera 10 - 11 only
|
|
// Opera 10-11 does not throw on post-comma invalid pseudos
|
|
el.querySelectorAll( "*,:x" );
|
|
rbuggyQSA.push( ",.*:" );
|
|
} );
|
|
}
|
|
|
|
if ( ( support.matchesSelector = rnative.test( ( matches = docElem.matches ||
|
|
docElem.webkitMatchesSelector ||
|
|
docElem.mozMatchesSelector ||
|
|
docElem.oMatchesSelector ||
|
|
docElem.msMatchesSelector ) ) ) ) {
|
|
|
|
assert( function( el ) {
|
|
|
|
// Check to see if it's possible to do matchesSelector
|
|
// on a disconnected node (IE 9)
|
|
support.disconnectedMatch = matches.call( el, "*" );
|
|
|
|
// This should fail with an exception
|
|
// Gecko does not error, returns false instead
|
|
matches.call( el, "[s!='']:x" );
|
|
rbuggyMatches.push( "!=", pseudos );
|
|
} );
|
|
}
|
|
|
|
rbuggyQSA = rbuggyQSA.length && new RegExp( rbuggyQSA.join( "|" ) );
|
|
rbuggyMatches = rbuggyMatches.length && new RegExp( rbuggyMatches.join( "|" ) );
|
|
|
|
/* Contains
|
|
---------------------------------------------------------------------- */
|
|
hasCompare = rnative.test( docElem.compareDocumentPosition );
|
|
|
|
// Element contains another
|
|
// Purposefully self-exclusive
|
|
// As in, an element does not contain itself
|
|
contains = hasCompare || rnative.test( docElem.contains ) ?
|
|
function( a, b ) {
|
|
var adown = a.nodeType === 9 ? a.documentElement : a,
|
|
bup = b && b.parentNode;
|
|
return a === bup || !!( bup && bup.nodeType === 1 && (
|
|
adown.contains ?
|
|
adown.contains( bup ) :
|
|
a.compareDocumentPosition && a.compareDocumentPosition( bup ) & 16
|
|
) );
|
|
} :
|
|
function( a, b ) {
|
|
if ( b ) {
|
|
while ( ( b = b.parentNode ) ) {
|
|
if ( b === a ) {
|
|
return true;
|
|
}
|
|
}
|
|
}
|
|
return false;
|
|
};
|
|
|
|
/* Sorting
|
|
---------------------------------------------------------------------- */
|
|
|
|
// Document order sorting
|
|
sortOrder = hasCompare ?
|
|
function( a, b ) {
|
|
|
|
// Flag for duplicate removal
|
|
if ( a === b ) {
|
|
hasDuplicate = true;
|
|
return 0;
|
|
}
|
|
|
|
// Sort on method existence if only one input has compareDocumentPosition
|
|
var compare = !a.compareDocumentPosition - !b.compareDocumentPosition;
|
|
if ( compare ) {
|
|
return compare;
|
|
}
|
|
|
|
// Calculate position if both inputs belong to the same document
|
|
// Support: IE 11+, Edge 17 - 18+
|
|
// IE/Edge sometimes throw a "Permission denied" error when strict-comparing
|
|
// two documents; shallow comparisons work.
|
|
// eslint-disable-next-line eqeqeq
|
|
compare = ( a.ownerDocument || a ) == ( b.ownerDocument || b ) ?
|
|
a.compareDocumentPosition( b ) :
|
|
|
|
// Otherwise we know they are disconnected
|
|
1;
|
|
|
|
// Disconnected nodes
|
|
if ( compare & 1 ||
|
|
( !support.sortDetached && b.compareDocumentPosition( a ) === compare ) ) {
|
|
|
|
// Choose the first element that is related to our preferred document
|
|
// Support: IE 11+, Edge 17 - 18+
|
|
// IE/Edge sometimes throw a "Permission denied" error when strict-comparing
|
|
// two documents; shallow comparisons work.
|
|
// eslint-disable-next-line eqeqeq
|
|
if ( a == document || a.ownerDocument == preferredDoc &&
|
|
contains( preferredDoc, a ) ) {
|
|
return -1;
|
|
}
|
|
|
|
// Support: IE 11+, Edge 17 - 18+
|
|
// IE/Edge sometimes throw a "Permission denied" error when strict-comparing
|
|
// two documents; shallow comparisons work.
|
|
// eslint-disable-next-line eqeqeq
|
|
if ( b == document || b.ownerDocument == preferredDoc &&
|
|
contains( preferredDoc, b ) ) {
|
|
return 1;
|
|
}
|
|
|
|
// Maintain original order
|
|
return sortInput ?
|
|
( indexOf( sortInput, a ) - indexOf( sortInput, b ) ) :
|
|
0;
|
|
}
|
|
|
|
return compare & 4 ? -1 : 1;
|
|
} :
|
|
function( a, b ) {
|
|
|
|
// Exit early if the nodes are identical
|
|
if ( a === b ) {
|
|
hasDuplicate = true;
|
|
return 0;
|
|
}
|
|
|
|
var cur,
|
|
i = 0,
|
|
aup = a.parentNode,
|
|
bup = b.parentNode,
|
|
ap = [ a ],
|
|
bp = [ b ];
|
|
|
|
// Parentless nodes are either documents or disconnected
|
|
if ( !aup || !bup ) {
|
|
|
|
// Support: IE 11+, Edge 17 - 18+
|
|
// IE/Edge sometimes throw a "Permission denied" error when strict-comparing
|
|
// two documents; shallow comparisons work.
|
|
/* eslint-disable eqeqeq */
|
|
return a == document ? -1 :
|
|
b == document ? 1 :
|
|
/* eslint-enable eqeqeq */
|
|
aup ? -1 :
|
|
bup ? 1 :
|
|
sortInput ?
|
|
( indexOf( sortInput, a ) - indexOf( sortInput, b ) ) :
|
|
0;
|
|
|
|
// If the nodes are siblings, we can do a quick check
|
|
} else if ( aup === bup ) {
|
|
return siblingCheck( a, b );
|
|
}
|
|
|
|
// Otherwise we need full lists of their ancestors for comparison
|
|
cur = a;
|
|
while ( ( cur = cur.parentNode ) ) {
|
|
ap.unshift( cur );
|
|
}
|
|
cur = b;
|
|
while ( ( cur = cur.parentNode ) ) {
|
|
bp.unshift( cur );
|
|
}
|
|
|
|
// Walk down the tree looking for a discrepancy
|
|
while ( ap[ i ] === bp[ i ] ) {
|
|
i++;
|
|
}
|
|
|
|
return i ?
|
|
|
|
// Do a sibling check if the nodes have a common ancestor
|
|
siblingCheck( ap[ i ], bp[ i ] ) :
|
|
|
|
// Otherwise nodes in our document sort first
|
|
// Support: IE 11+, Edge 17 - 18+
|
|
// IE/Edge sometimes throw a "Permission denied" error when strict-comparing
|
|
// two documents; shallow comparisons work.
|
|
/* eslint-disable eqeqeq */
|
|
ap[ i ] == preferredDoc ? -1 :
|
|
bp[ i ] == preferredDoc ? 1 :
|
|
/* eslint-enable eqeqeq */
|
|
0;
|
|
};
|
|
|
|
return document;
|
|
};
|
|
|
|
Sizzle.matches = function( expr, elements ) {
|
|
return Sizzle( expr, null, null, elements );
|
|
};
|
|
|
|
Sizzle.matchesSelector = function( elem, expr ) {
|
|
setDocument( elem );
|
|
|
|
if ( support.matchesSelector && documentIsHTML &&
|
|
!nonnativeSelectorCache[ expr + " " ] &&
|
|
( !rbuggyMatches || !rbuggyMatches.test( expr ) ) &&
|
|
( !rbuggyQSA || !rbuggyQSA.test( expr ) ) ) {
|
|
|
|
try {
|
|
var ret = matches.call( elem, expr );
|
|
|
|
// IE 9's matchesSelector returns false on disconnected nodes
|
|
if ( ret || support.disconnectedMatch ||
|
|
|
|
// As well, disconnected nodes are said to be in a document
|
|
// fragment in IE 9
|
|
elem.document && elem.document.nodeType !== 11 ) {
|
|
return ret;
|
|
}
|
|
} catch ( e ) {
|
|
nonnativeSelectorCache( expr, true );
|
|
}
|
|
}
|
|
|
|
return Sizzle( expr, document, null, [ elem ] ).length > 0;
|
|
};
|
|
|
|
Sizzle.contains = function( context, elem ) {
|
|
|
|
// Set document vars if needed
|
|
// Support: IE 11+, Edge 17 - 18+
|
|
// IE/Edge sometimes throw a "Permission denied" error when strict-comparing
|
|
// two documents; shallow comparisons work.
|
|
// eslint-disable-next-line eqeqeq
|
|
if ( ( context.ownerDocument || context ) != document ) {
|
|
setDocument( context );
|
|
}
|
|
return contains( context, elem );
|
|
};
|
|
|
|
Sizzle.attr = function( elem, name ) {
|
|
|
|
// Set document vars if needed
|
|
// Support: IE 11+, Edge 17 - 18+
|
|
// IE/Edge sometimes throw a "Permission denied" error when strict-comparing
|
|
// two documents; shallow comparisons work.
|
|
// eslint-disable-next-line eqeqeq
|
|
if ( ( elem.ownerDocument || elem ) != document ) {
|
|
setDocument( elem );
|
|
}
|
|
|
|
var fn = Expr.attrHandle[ name.toLowerCase() ],
|
|
|
|
// Don't get fooled by Object.prototype properties (jQuery #13807)
|
|
val = fn && hasOwn.call( Expr.attrHandle, name.toLowerCase() ) ?
|
|
fn( elem, name, !documentIsHTML ) :
|
|
undefined;
|
|
|
|
return val !== undefined ?
|
|
val :
|
|
support.attributes || !documentIsHTML ?
|
|
elem.getAttribute( name ) :
|
|
( val = elem.getAttributeNode( name ) ) && val.specified ?
|
|
val.value :
|
|
null;
|
|
};
|
|
|
|
Sizzle.escape = function( sel ) {
|
|
return ( sel + "" ).replace( rcssescape, fcssescape );
|
|
};
|
|
|
|
Sizzle.error = function( msg ) {
|
|
throw new Error( "Syntax error, unrecognized expression: " + msg );
|
|
};
|
|
|
|
/**
|
|
* Document sorting and removing duplicates
|
|
* @param {ArrayLike} results
|
|
*/
|
|
Sizzle.uniqueSort = function( results ) {
|
|
var elem,
|
|
duplicates = [],
|
|
j = 0,
|
|
i = 0;
|
|
|
|
// Unless we *know* we can detect duplicates, assume their presence
|
|
hasDuplicate = !support.detectDuplicates;
|
|
sortInput = !support.sortStable && results.slice( 0 );
|
|
results.sort( sortOrder );
|
|
|
|
if ( hasDuplicate ) {
|
|
while ( ( elem = results[ i++ ] ) ) {
|
|
if ( elem === results[ i ] ) {
|
|
j = duplicates.push( i );
|
|
}
|
|
}
|
|
while ( j-- ) {
|
|
results.splice( duplicates[ j ], 1 );
|
|
}
|
|
}
|
|
|
|
// Clear input after sorting to release objects
|
|
// See https://github.com/jquery/sizzle/pull/225
|
|
sortInput = null;
|
|
|
|
return results;
|
|
};
|
|
|
|
/**
|
|
* Utility function for retrieving the text value of an array of DOM nodes
|
|
* @param {Array|Element} elem
|
|
*/
|
|
getText = Sizzle.getText = function( elem ) {
|
|
var node,
|
|
ret = "",
|
|
i = 0,
|
|
nodeType = elem.nodeType;
|
|
|
|
if ( !nodeType ) {
|
|
|
|
// If no nodeType, this is expected to be an array
|
|
while ( ( node = elem[ i++ ] ) ) {
|
|
|
|
// Do not traverse comment nodes
|
|
ret += getText( node );
|
|
}
|
|
} else if ( nodeType === 1 || nodeType === 9 || nodeType === 11 ) {
|
|
|
|
// Use textContent for elements
|
|
// innerText usage removed for consistency of new lines (jQuery #11153)
|
|
if ( typeof elem.textContent === "string" ) {
|
|
return elem.textContent;
|
|
} else {
|
|
|
|
// Traverse its children
|
|
for ( elem = elem.firstChild; elem; elem = elem.nextSibling ) {
|
|
ret += getText( elem );
|
|
}
|
|
}
|
|
} else if ( nodeType === 3 || nodeType === 4 ) {
|
|
return elem.nodeValue;
|
|
}
|
|
|
|
// Do not include comment or processing instruction nodes
|
|
|
|
return ret;
|
|
};
|
|
|
|
Expr = Sizzle.selectors = {
|
|
|
|
// Can be adjusted by the user
|
|
cacheLength: 50,
|
|
|
|
createPseudo: markFunction,
|
|
|
|
match: matchExpr,
|
|
|
|
attrHandle: {},
|
|
|
|
find: {},
|
|
|
|
relative: {
|
|
">": { dir: "parentNode", first: true },
|
|
" ": { dir: "parentNode" },
|
|
"+": { dir: "previousSibling", first: true },
|
|
"~": { dir: "previousSibling" }
|
|
},
|
|
|
|
preFilter: {
|
|
"ATTR": function( match ) {
|
|
match[ 1 ] = match[ 1 ].replace( runescape, funescape );
|
|
|
|
// Move the given value to match[3] whether quoted or unquoted
|
|
match[ 3 ] = ( match[ 3 ] || match[ 4 ] ||
|
|
match[ 5 ] || "" ).replace( runescape, funescape );
|
|
|
|
if ( match[ 2 ] === "~=" ) {
|
|
match[ 3 ] = " " + match[ 3 ] + " ";
|
|
}
|
|
|
|
return match.slice( 0, 4 );
|
|
},
|
|
|
|
"CHILD": function( match ) {
|
|
|
|
/* matches from matchExpr["CHILD"]
|
|
1 type (only|nth|...)
|
|
2 what (child|of-type)
|
|
3 argument (even|odd|\d*|\d*n([+-]\d+)?|...)
|
|
4 xn-component of xn+y argument ([+-]?\d*n|)
|
|
5 sign of xn-component
|
|
6 x of xn-component
|
|
7 sign of y-component
|
|
8 y of y-component
|
|
*/
|
|
match[ 1 ] = match[ 1 ].toLowerCase();
|
|
|
|
if ( match[ 1 ].slice( 0, 3 ) === "nth" ) {
|
|
|
|
// nth-* requires argument
|
|
if ( !match[ 3 ] ) {
|
|
Sizzle.error( match[ 0 ] );
|
|
}
|
|
|
|
// numeric x and y parameters for Expr.filter.CHILD
|
|
// remember that false/true cast respectively to 0/1
|
|
match[ 4 ] = +( match[ 4 ] ?
|
|
match[ 5 ] + ( match[ 6 ] || 1 ) :
|
|
2 * ( match[ 3 ] === "even" || match[ 3 ] === "odd" ) );
|
|
match[ 5 ] = +( ( match[ 7 ] + match[ 8 ] ) || match[ 3 ] === "odd" );
|
|
|
|
// other types prohibit arguments
|
|
} else if ( match[ 3 ] ) {
|
|
Sizzle.error( match[ 0 ] );
|
|
}
|
|
|
|
return match;
|
|
},
|
|
|
|
"PSEUDO": function( match ) {
|
|
var excess,
|
|
unquoted = !match[ 6 ] && match[ 2 ];
|
|
|
|
if ( matchExpr[ "CHILD" ].test( match[ 0 ] ) ) {
|
|
return null;
|
|
}
|
|
|
|
// Accept quoted arguments as-is
|
|
if ( match[ 3 ] ) {
|
|
match[ 2 ] = match[ 4 ] || match[ 5 ] || "";
|
|
|
|
// Strip excess characters from unquoted arguments
|
|
} else if ( unquoted && rpseudo.test( unquoted ) &&
|
|
|
|
// Get excess from tokenize (recursively)
|
|
( excess = tokenize( unquoted, true ) ) &&
|
|
|
|
// advance to the next closing parenthesis
|
|
( excess = unquoted.indexOf( ")", unquoted.length - excess ) - unquoted.length ) ) {
|
|
|
|
// excess is a negative index
|
|
match[ 0 ] = match[ 0 ].slice( 0, excess );
|
|
match[ 2 ] = unquoted.slice( 0, excess );
|
|
}
|
|
|
|
// Return only captures needed by the pseudo filter method (type and argument)
|
|
return match.slice( 0, 3 );
|
|
}
|
|
},
|
|
|
|
filter: {
|
|
|
|
"TAG": function( nodeNameSelector ) {
|
|
var nodeName = nodeNameSelector.replace( runescape, funescape ).toLowerCase();
|
|
return nodeNameSelector === "*" ?
|
|
function() {
|
|
return true;
|
|
} :
|
|
function( elem ) {
|
|
return elem.nodeName && elem.nodeName.toLowerCase() === nodeName;
|
|
};
|
|
},
|
|
|
|
"CLASS": function( className ) {
|
|
var pattern = classCache[ className + " " ];
|
|
|
|
return pattern ||
|
|
( pattern = new RegExp( "(^|" + whitespace +
|
|
")" + className + "(" + whitespace + "|$)" ) ) && classCache(
|
|
className, function( elem ) {
|
|
return pattern.test(
|
|
typeof elem.className === "string" && elem.className ||
|
|
typeof elem.getAttribute !== "undefined" &&
|
|
elem.getAttribute( "class" ) ||
|
|
""
|
|
);
|
|
} );
|
|
},
|
|
|
|
"ATTR": function( name, operator, check ) {
|
|
return function( elem ) {
|
|
var result = Sizzle.attr( elem, name );
|
|
|
|
if ( result == null ) {
|
|
return operator === "!=";
|
|
}
|
|
if ( !operator ) {
|
|
return true;
|
|
}
|
|
|
|
result += "";
|
|
|
|
/* eslint-disable max-len */
|
|
|
|
return operator === "=" ? result === check :
|
|
operator === "!=" ? result !== check :
|
|
operator === "^=" ? check && result.indexOf( check ) === 0 :
|
|
operator === "*=" ? check && result.indexOf( check ) > -1 :
|
|
operator === "$=" ? check && result.slice( -check.length ) === check :
|
|
operator === "~=" ? ( " " + result.replace( rwhitespace, " " ) + " " ).indexOf( check ) > -1 :
|
|
operator === "|=" ? result === check || result.slice( 0, check.length + 1 ) === check + "-" :
|
|
false;
|
|
/* eslint-enable max-len */
|
|
|
|
};
|
|
},
|
|
|
|
"CHILD": function( type, what, _argument, first, last ) {
|
|
var simple = type.slice( 0, 3 ) !== "nth",
|
|
forward = type.slice( -4 ) !== "last",
|
|
ofType = what === "of-type";
|
|
|
|
return first === 1 && last === 0 ?
|
|
|
|
// Shortcut for :nth-*(n)
|
|
function( elem ) {
|
|
return !!elem.parentNode;
|
|
} :
|
|
|
|
function( elem, _context, xml ) {
|
|
var cache, uniqueCache, outerCache, node, nodeIndex, start,
|
|
dir = simple !== forward ? "nextSibling" : "previousSibling",
|
|
parent = elem.parentNode,
|
|
name = ofType && elem.nodeName.toLowerCase(),
|
|
useCache = !xml && !ofType,
|
|
diff = false;
|
|
|
|
if ( parent ) {
|
|
|
|
// :(first|last|only)-(child|of-type)
|
|
if ( simple ) {
|
|
while ( dir ) {
|
|
node = elem;
|
|
while ( ( node = node[ dir ] ) ) {
|
|
if ( ofType ?
|
|
node.nodeName.toLowerCase() === name :
|
|
node.nodeType === 1 ) {
|
|
|
|
return false;
|
|
}
|
|
}
|
|
|
|
// Reverse direction for :only-* (if we haven't yet done so)
|
|
start = dir = type === "only" && !start && "nextSibling";
|
|
}
|
|
return true;
|
|
}
|
|
|
|
start = [ forward ? parent.firstChild : parent.lastChild ];
|
|
|
|
// non-xml :nth-child(...) stores cache data on `parent`
|
|
if ( forward && useCache ) {
|
|
|
|
// Seek `elem` from a previously-cached index
|
|
|
|
// ...in a gzip-friendly way
|
|
node = parent;
|
|
outerCache = node[ expando ] || ( node[ expando ] = {} );
|
|
|
|
// Support: IE <9 only
|
|
// Defend against cloned attroperties (jQuery gh-1709)
|
|
uniqueCache = outerCache[ node.uniqueID ] ||
|
|
( outerCache[ node.uniqueID ] = {} );
|
|
|
|
cache = uniqueCache[ type ] || [];
|
|
nodeIndex = cache[ 0 ] === dirruns && cache[ 1 ];
|
|
diff = nodeIndex && cache[ 2 ];
|
|
node = nodeIndex && parent.childNodes[ nodeIndex ];
|
|
|
|
while ( ( node = ++nodeIndex && node && node[ dir ] ||
|
|
|
|
// Fallback to seeking `elem` from the start
|
|
( diff = nodeIndex = 0 ) || start.pop() ) ) {
|
|
|
|
// When found, cache indexes on `parent` and break
|
|
if ( node.nodeType === 1 && ++diff && node === elem ) {
|
|
uniqueCache[ type ] = [ dirruns, nodeIndex, diff ];
|
|
break;
|
|
}
|
|
}
|
|
|
|
} else {
|
|
|
|
// Use previously-cached element index if available
|
|
if ( useCache ) {
|
|
|
|
// ...in a gzip-friendly way
|
|
node = elem;
|
|
outerCache = node[ expando ] || ( node[ expando ] = {} );
|
|
|
|
// Support: IE <9 only
|
|
// Defend against cloned attroperties (jQuery gh-1709)
|
|
uniqueCache = outerCache[ node.uniqueID ] ||
|
|
( outerCache[ node.uniqueID ] = {} );
|
|
|
|
cache = uniqueCache[ type ] || [];
|
|
nodeIndex = cache[ 0 ] === dirruns && cache[ 1 ];
|
|
diff = nodeIndex;
|
|
}
|
|
|
|
// xml :nth-child(...)
|
|
// or :nth-last-child(...) or :nth(-last)?-of-type(...)
|
|
if ( diff === false ) {
|
|
|
|
// Use the same loop as above to seek `elem` from the start
|
|
while ( ( node = ++nodeIndex && node && node[ dir ] ||
|
|
( diff = nodeIndex = 0 ) || start.pop() ) ) {
|
|
|
|
if ( ( ofType ?
|
|
node.nodeName.toLowerCase() === name :
|
|
node.nodeType === 1 ) &&
|
|
++diff ) {
|
|
|
|
// Cache the index of each encountered element
|
|
if ( useCache ) {
|
|
outerCache = node[ expando ] ||
|
|
( node[ expando ] = {} );
|
|
|
|
// Support: IE <9 only
|
|
// Defend against cloned attroperties (jQuery gh-1709)
|
|
uniqueCache = outerCache[ node.uniqueID ] ||
|
|
( outerCache[ node.uniqueID ] = {} );
|
|
|
|
uniqueCache[ type ] = [ dirruns, diff ];
|
|
}
|
|
|
|
if ( node === elem ) {
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// Incorporate the offset, then check against cycle size
|
|
diff -= last;
|
|
return diff === first || ( diff % first === 0 && diff / first >= 0 );
|
|
}
|
|
};
|
|
},
|
|
|
|
"PSEUDO": function( pseudo, argument ) {
|
|
|
|
// pseudo-class names are case-insensitive
|
|
// http://www.w3.org/TR/selectors/#pseudo-classes
|
|
// Prioritize by case sensitivity in case custom pseudos are added with uppercase letters
|
|
// Remember that setFilters inherits from pseudos
|
|
var args,
|
|
fn = Expr.pseudos[ pseudo ] || Expr.setFilters[ pseudo.toLowerCase() ] ||
|
|
Sizzle.error( "unsupported pseudo: " + pseudo );
|
|
|
|
// The user may use createPseudo to indicate that
|
|
// arguments are needed to create the filter function
|
|
// just as Sizzle does
|
|
if ( fn[ expando ] ) {
|
|
return fn( argument );
|
|
}
|
|
|
|
// But maintain support for old signatures
|
|
if ( fn.length > 1 ) {
|
|
args = [ pseudo, pseudo, "", argument ];
|
|
return Expr.setFilters.hasOwnProperty( pseudo.toLowerCase() ) ?
|
|
markFunction( function( seed, matches ) {
|
|
var idx,
|
|
matched = fn( seed, argument ),
|
|
i = matched.length;
|
|
while ( i-- ) {
|
|
idx = indexOf( seed, matched[ i ] );
|
|
seed[ idx ] = !( matches[ idx ] = matched[ i ] );
|
|
}
|
|
} ) :
|
|
function( elem ) {
|
|
return fn( elem, 0, args );
|
|
};
|
|
}
|
|
|
|
return fn;
|
|
}
|
|
},
|
|
|
|
pseudos: {
|
|
|
|
// Potentially complex pseudos
|
|
"not": markFunction( function( selector ) {
|
|
|
|
// Trim the selector passed to compile
|
|
// to avoid treating leading and trailing
|
|
// spaces as combinators
|
|
var input = [],
|
|
results = [],
|
|
matcher = compile( selector.replace( rtrim, "$1" ) );
|
|
|
|
return matcher[ expando ] ?
|
|
markFunction( function( seed, matches, _context, xml ) {
|
|
var elem,
|
|
unmatched = matcher( seed, null, xml, [] ),
|
|
i = seed.length;
|
|
|
|
// Match elements unmatched by `matcher`
|
|
while ( i-- ) {
|
|
if ( ( elem = unmatched[ i ] ) ) {
|
|
seed[ i ] = !( matches[ i ] = elem );
|
|
}
|
|
}
|
|
} ) :
|
|
function( elem, _context, xml ) {
|
|
input[ 0 ] = elem;
|
|
matcher( input, null, xml, results );
|
|
|
|
// Don't keep the element (issue #299)
|
|
input[ 0 ] = null;
|
|
return !results.pop();
|
|
};
|
|
} ),
|
|
|
|
"has": markFunction( function( selector ) {
|
|
return function( elem ) {
|
|
return Sizzle( selector, elem ).length > 0;
|
|
};
|
|
} ),
|
|
|
|
"contains": markFunction( function( text ) {
|
|
text = text.replace( runescape, funescape );
|
|
return function( elem ) {
|
|
return ( elem.textContent || getText( elem ) ).indexOf( text ) > -1;
|
|
};
|
|
} ),
|
|
|
|
// "Whether an element is represented by a :lang() selector
|
|
// is based solely on the element's language value
|
|
// being equal to the identifier C,
|
|
// or beginning with the identifier C immediately followed by "-".
|
|
// The matching of C against the element's language value is performed case-insensitively.
|
|
// The identifier C does not have to be a valid language name."
|
|
// http://www.w3.org/TR/selectors/#lang-pseudo
|
|
"lang": markFunction( function( lang ) {
|
|
|
|
// lang value must be a valid identifier
|
|
if ( !ridentifier.test( lang || "" ) ) {
|
|
Sizzle.error( "unsupported lang: " + lang );
|
|
}
|
|
lang = lang.replace( runescape, funescape ).toLowerCase();
|
|
return function( elem ) {
|
|
var elemLang;
|
|
do {
|
|
if ( ( elemLang = documentIsHTML ?
|
|
elem.lang :
|
|
elem.getAttribute( "xml:lang" ) || elem.getAttribute( "lang" ) ) ) {
|
|
|
|
elemLang = elemLang.toLowerCase();
|
|
return elemLang === lang || elemLang.indexOf( lang + "-" ) === 0;
|
|
}
|
|
} while ( ( elem = elem.parentNode ) && elem.nodeType === 1 );
|
|
return false;
|
|
};
|
|
} ),
|
|
|
|
// Miscellaneous
|
|
"target": function( elem ) {
|
|
var hash = window.location && window.location.hash;
|
|
return hash && hash.slice( 1 ) === elem.id;
|
|
},
|
|
|
|
"root": function( elem ) {
|
|
return elem === docElem;
|
|
},
|
|
|
|
"focus": function( elem ) {
|
|
return elem === document.activeElement &&
|
|
( !document.hasFocus || document.hasFocus() ) &&
|
|
!!( elem.type || elem.href || ~elem.tabIndex );
|
|
},
|
|
|
|
// Boolean properties
|
|
"enabled": createDisabledPseudo( false ),
|
|
"disabled": createDisabledPseudo( true ),
|
|
|
|
"checked": function( elem ) {
|
|
|
|
// In CSS3, :checked should return both checked and selected elements
|
|
// http://www.w3.org/TR/2011/REC-css3-selectors-20110929/#checked
|
|
var nodeName = elem.nodeName.toLowerCase();
|
|
return ( nodeName === "input" && !!elem.checked ) ||
|
|
( nodeName === "option" && !!elem.selected );
|
|
},
|
|
|
|
"selected": function( elem ) {
|
|
|
|
// Accessing this property makes selected-by-default
|
|
// options in Safari work properly
|
|
if ( elem.parentNode ) {
|
|
// eslint-disable-next-line no-unused-expressions
|
|
elem.parentNode.selectedIndex;
|
|
}
|
|
|
|
return elem.selected === true;
|
|
},
|
|
|
|
// Contents
|
|
"empty": function( elem ) {
|
|
|
|
// http://www.w3.org/TR/selectors/#empty-pseudo
|
|
// :empty is negated by element (1) or content nodes (text: 3; cdata: 4; entity ref: 5),
|
|
// but not by others (comment: 8; processing instruction: 7; etc.)
|
|
// nodeType < 6 works because attributes (2) do not appear as children
|
|
for ( elem = elem.firstChild; elem; elem = elem.nextSibling ) {
|
|
if ( elem.nodeType < 6 ) {
|
|
return false;
|
|
}
|
|
}
|
|
return true;
|
|
},
|
|
|
|
"parent": function( elem ) {
|
|
return !Expr.pseudos[ "empty" ]( elem );
|
|
},
|
|
|
|
// Element/input types
|
|
"header": function( elem ) {
|
|
return rheader.test( elem.nodeName );
|
|
},
|
|
|
|
"input": function( elem ) {
|
|
return rinputs.test( elem.nodeName );
|
|
},
|
|
|
|
"button": function( elem ) {
|
|
var name = elem.nodeName.toLowerCase();
|
|
return name === "input" && elem.type === "button" || name === "button";
|
|
},
|
|
|
|
"text": function( elem ) {
|
|
var attr;
|
|
return elem.nodeName.toLowerCase() === "input" &&
|
|
elem.type === "text" &&
|
|
|
|
// Support: IE<8
|
|
// New HTML5 attribute values (e.g., "search") appear with elem.type === "text"
|
|
( ( attr = elem.getAttribute( "type" ) ) == null ||
|
|
attr.toLowerCase() === "text" );
|
|
},
|
|
|
|
// Position-in-collection
|
|
"first": createPositionalPseudo( function() {
|
|
return [ 0 ];
|
|
} ),
|
|
|
|
"last": createPositionalPseudo( function( _matchIndexes, length ) {
|
|
return [ length - 1 ];
|
|
} ),
|
|
|
|
"eq": createPositionalPseudo( function( _matchIndexes, length, argument ) {
|
|
return [ argument < 0 ? argument + length : argument ];
|
|
} ),
|
|
|
|
"even": createPositionalPseudo( function( matchIndexes, length ) {
|
|
var i = 0;
|
|
for ( ; i < length; i += 2 ) {
|
|
matchIndexes.push( i );
|
|
}
|
|
return matchIndexes;
|
|
} ),
|
|
|
|
"odd": createPositionalPseudo( function( matchIndexes, length ) {
|
|
var i = 1;
|
|
for ( ; i < length; i += 2 ) {
|
|
matchIndexes.push( i );
|
|
}
|
|
return matchIndexes;
|
|
} ),
|
|
|
|
"lt": createPositionalPseudo( function( matchIndexes, length, argument ) {
|
|
var i = argument < 0 ?
|
|
argument + length :
|
|
argument > length ?
|
|
length :
|
|
argument;
|
|
for ( ; --i >= 0; ) {
|
|
matchIndexes.push( i );
|
|
}
|
|
return matchIndexes;
|
|
} ),
|
|
|
|
"gt": createPositionalPseudo( function( matchIndexes, length, argument ) {
|
|
var i = argument < 0 ? argument + length : argument;
|
|
for ( ; ++i < length; ) {
|
|
matchIndexes.push( i );
|
|
}
|
|
return matchIndexes;
|
|
} )
|
|
}
|
|
};
|
|
|
|
Expr.pseudos[ "nth" ] = Expr.pseudos[ "eq" ];
|
|
|
|
// Add button/input type pseudos
|
|
for ( i in { radio: true, checkbox: true, file: true, password: true, image: true } ) {
|
|
Expr.pseudos[ i ] = createInputPseudo( i );
|
|
}
|
|
for ( i in { submit: true, reset: true } ) {
|
|
Expr.pseudos[ i ] = createButtonPseudo( i );
|
|
}
|
|
|
|
// Easy API for creating new setFilters
|
|
function setFilters() {}
|
|
setFilters.prototype = Expr.filters = Expr.pseudos;
|
|
Expr.setFilters = new setFilters();
|
|
|
|
tokenize = Sizzle.tokenize = function( selector, parseOnly ) {
|
|
var matched, match, tokens, type,
|
|
soFar, groups, preFilters,
|
|
cached = tokenCache[ selector + " " ];
|
|
|
|
if ( cached ) {
|
|
return parseOnly ? 0 : cached.slice( 0 );
|
|
}
|
|
|
|
soFar = selector;
|
|
groups = [];
|
|
preFilters = Expr.preFilter;
|
|
|
|
while ( soFar ) {
|
|
|
|
// Comma and first run
|
|
if ( !matched || ( match = rcomma.exec( soFar ) ) ) {
|
|
if ( match ) {
|
|
|
|
// Don't consume trailing commas as valid
|
|
soFar = soFar.slice( match[ 0 ].length ) || soFar;
|
|
}
|
|
groups.push( ( tokens = [] ) );
|
|
}
|
|
|
|
matched = false;
|
|
|
|
// Combinators
|
|
if ( ( match = rcombinators.exec( soFar ) ) ) {
|
|
matched = match.shift();
|
|
tokens.push( {
|
|
value: matched,
|
|
|
|
// Cast descendant combinators to space
|
|
type: match[ 0 ].replace( rtrim, " " )
|
|
} );
|
|
soFar = soFar.slice( matched.length );
|
|
}
|
|
|
|
// Filters
|
|
for ( type in Expr.filter ) {
|
|
if ( ( match = matchExpr[ type ].exec( soFar ) ) && ( !preFilters[ type ] ||
|
|
( match = preFilters[ type ]( match ) ) ) ) {
|
|
matched = match.shift();
|
|
tokens.push( {
|
|
value: matched,
|
|
type: type,
|
|
matches: match
|
|
} );
|
|
soFar = soFar.slice( matched.length );
|
|
}
|
|
}
|
|
|
|
if ( !matched ) {
|
|
break;
|
|
}
|
|
}
|
|
|
|
// Return the length of the invalid excess
|
|
// if we're just parsing
|
|
// Otherwise, throw an error or return tokens
|
|
return parseOnly ?
|
|
soFar.length :
|
|
soFar ?
|
|
Sizzle.error( selector ) :
|
|
|
|
// Cache the tokens
|
|
tokenCache( selector, groups ).slice( 0 );
|
|
};
|
|
|
|
function toSelector( tokens ) {
|
|
var i = 0,
|
|
len = tokens.length,
|
|
selector = "";
|
|
for ( ; i < len; i++ ) {
|
|
selector += tokens[ i ].value;
|
|
}
|
|
return selector;
|
|
}
|
|
|
|
function addCombinator( matcher, combinator, base ) {
|
|
var dir = combinator.dir,
|
|
skip = combinator.next,
|
|
key = skip || dir,
|
|
checkNonElements = base && key === "parentNode",
|
|
doneName = done++;
|
|
|
|
return combinator.first ?
|
|
|
|
// Check against closest ancestor/preceding element
|
|
function( elem, context, xml ) {
|
|
while ( ( elem = elem[ dir ] ) ) {
|
|
if ( elem.nodeType === 1 || checkNonElements ) {
|
|
return matcher( elem, context, xml );
|
|
}
|
|
}
|
|
return false;
|
|
} :
|
|
|
|
// Check against all ancestor/preceding elements
|
|
function( elem, context, xml ) {
|
|
var oldCache, uniqueCache, outerCache,
|
|
newCache = [ dirruns, doneName ];
|
|
|
|
// We can't set arbitrary data on XML nodes, so they don't benefit from combinator caching
|
|
if ( xml ) {
|
|
while ( ( elem = elem[ dir ] ) ) {
|
|
if ( elem.nodeType === 1 || checkNonElements ) {
|
|
if ( matcher( elem, context, xml ) ) {
|
|
return true;
|
|
}
|
|
}
|
|
}
|
|
} else {
|
|
while ( ( elem = elem[ dir ] ) ) {
|
|
if ( elem.nodeType === 1 || checkNonElements ) {
|
|
outerCache = elem[ expando ] || ( elem[ expando ] = {} );
|
|
|
|
// Support: IE <9 only
|
|
// Defend against cloned attroperties (jQuery gh-1709)
|
|
uniqueCache = outerCache[ elem.uniqueID ] ||
|
|
( outerCache[ elem.uniqueID ] = {} );
|
|
|
|
if ( skip && skip === elem.nodeName.toLowerCase() ) {
|
|
elem = elem[ dir ] || elem;
|
|
} else if ( ( oldCache = uniqueCache[ key ] ) &&
|
|
oldCache[ 0 ] === dirruns && oldCache[ 1 ] === doneName ) {
|
|
|
|
// Assign to newCache so results back-propagate to previous elements
|
|
return ( newCache[ 2 ] = oldCache[ 2 ] );
|
|
} else {
|
|
|
|
// Reuse newcache so results back-propagate to previous elements
|
|
uniqueCache[ key ] = newCache;
|
|
|
|
// A match means we're done; a fail means we have to keep checking
|
|
if ( ( newCache[ 2 ] = matcher( elem, context, xml ) ) ) {
|
|
return true;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return false;
|
|
};
|
|
}
|
|
|
|
function elementMatcher( matchers ) {
|
|
return matchers.length > 1 ?
|
|
function( elem, context, xml ) {
|
|
var i = matchers.length;
|
|
while ( i-- ) {
|
|
if ( !matchers[ i ]( elem, context, xml ) ) {
|
|
return false;
|
|
}
|
|
}
|
|
return true;
|
|
} :
|
|
matchers[ 0 ];
|
|
}
|
|
|
|
function multipleContexts( selector, contexts, results ) {
|
|
var i = 0,
|
|
len = contexts.length;
|
|
for ( ; i < len; i++ ) {
|
|
Sizzle( selector, contexts[ i ], results );
|
|
}
|
|
return results;
|
|
}
|
|
|
|
function condense( unmatched, map, filter, context, xml ) {
|
|
var elem,
|
|
newUnmatched = [],
|
|
i = 0,
|
|
len = unmatched.length,
|
|
mapped = map != null;
|
|
|
|
for ( ; i < len; i++ ) {
|
|
if ( ( elem = unmatched[ i ] ) ) {
|
|
if ( !filter || filter( elem, context, xml ) ) {
|
|
newUnmatched.push( elem );
|
|
if ( mapped ) {
|
|
map.push( i );
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return newUnmatched;
|
|
}
|
|
|
|
function setMatcher( preFilter, selector, matcher, postFilter, postFinder, postSelector ) {
|
|
if ( postFilter && !postFilter[ expando ] ) {
|
|
postFilter = setMatcher( postFilter );
|
|
}
|
|
if ( postFinder && !postFinder[ expando ] ) {
|
|
postFinder = setMatcher( postFinder, postSelector );
|
|
}
|
|
return markFunction( function( seed, results, context, xml ) {
|
|
var temp, i, elem,
|
|
preMap = [],
|
|
postMap = [],
|
|
preexisting = results.length,
|
|
|
|
// Get initial elements from seed or context
|
|
elems = seed || multipleContexts(
|
|
selector || "*",
|
|
context.nodeType ? [ context ] : context,
|
|
[]
|
|
),
|
|
|
|
// Prefilter to get matcher input, preserving a map for seed-results synchronization
|
|
matcherIn = preFilter && ( seed || !selector ) ?
|
|
condense( elems, preMap, preFilter, context, xml ) :
|
|
elems,
|
|
|
|
matcherOut = matcher ?
|
|
|
|
// If we have a postFinder, or filtered seed, or non-seed postFilter or preexisting results,
|
|
postFinder || ( seed ? preFilter : preexisting || postFilter ) ?
|
|
|
|
// ...intermediate processing is necessary
|
|
[] :
|
|
|
|
// ...otherwise use results directly
|
|
results :
|
|
matcherIn;
|
|
|
|
// Find primary matches
|
|
if ( matcher ) {
|
|
matcher( matcherIn, matcherOut, context, xml );
|
|
}
|
|
|
|
// Apply postFilter
|
|
if ( postFilter ) {
|
|
temp = condense( matcherOut, postMap );
|
|
postFilter( temp, [], context, xml );
|
|
|
|
// Un-match failing elements by moving them back to matcherIn
|
|
i = temp.length;
|
|
while ( i-- ) {
|
|
if ( ( elem = temp[ i ] ) ) {
|
|
matcherOut[ postMap[ i ] ] = !( matcherIn[ postMap[ i ] ] = elem );
|
|
}
|
|
}
|
|
}
|
|
|
|
if ( seed ) {
|
|
if ( postFinder || preFilter ) {
|
|
if ( postFinder ) {
|
|
|
|
// Get the final matcherOut by condensing this intermediate into postFinder contexts
|
|
temp = [];
|
|
i = matcherOut.length;
|
|
while ( i-- ) {
|
|
if ( ( elem = matcherOut[ i ] ) ) {
|
|
|
|
// Restore matcherIn since elem is not yet a final match
|
|
temp.push( ( matcherIn[ i ] = elem ) );
|
|
}
|
|
}
|
|
postFinder( null, ( matcherOut = [] ), temp, xml );
|
|
}
|
|
|
|
// Move matched elements from seed to results to keep them synchronized
|
|
i = matcherOut.length;
|
|
while ( i-- ) {
|
|
if ( ( elem = matcherOut[ i ] ) &&
|
|
( temp = postFinder ? indexOf( seed, elem ) : preMap[ i ] ) > -1 ) {
|
|
|
|
seed[ temp ] = !( results[ temp ] = elem );
|
|
}
|
|
}
|
|
}
|
|
|
|
// Add elements to results, through postFinder if defined
|
|
} else {
|
|
matcherOut = condense(
|
|
matcherOut === results ?
|
|
matcherOut.splice( preexisting, matcherOut.length ) :
|
|
matcherOut
|
|
);
|
|
if ( postFinder ) {
|
|
postFinder( null, results, matcherOut, xml );
|
|
} else {
|
|
push.apply( results, matcherOut );
|
|
}
|
|
}
|
|
} );
|
|
}
|
|
|
|
function matcherFromTokens( tokens ) {
|
|
var checkContext, matcher, j,
|
|
len = tokens.length,
|
|
leadingRelative = Expr.relative[ tokens[ 0 ].type ],
|
|
implicitRelative = leadingRelative || Expr.relative[ " " ],
|
|
i = leadingRelative ? 1 : 0,
|
|
|
|
// The foundational matcher ensures that elements are reachable from top-level context(s)
|
|
matchContext = addCombinator( function( elem ) {
|
|
return elem === checkContext;
|
|
}, implicitRelative, true ),
|
|
matchAnyContext = addCombinator( function( elem ) {
|
|
return indexOf( checkContext, elem ) > -1;
|
|
}, implicitRelative, true ),
|
|
matchers = [ function( elem, context, xml ) {
|
|
var ret = ( !leadingRelative && ( xml || context !== outermostContext ) ) || (
|
|
( checkContext = context ).nodeType ?
|
|
matchContext( elem, context, xml ) :
|
|
matchAnyContext( elem, context, xml ) );
|
|
|
|
// Avoid hanging onto element (issue #299)
|
|
checkContext = null;
|
|
return ret;
|
|
} ];
|
|
|
|
for ( ; i < len; i++ ) {
|
|
if ( ( matcher = Expr.relative[ tokens[ i ].type ] ) ) {
|
|
matchers = [ addCombinator( elementMatcher( matchers ), matcher ) ];
|
|
} else {
|
|
matcher = Expr.filter[ tokens[ i ].type ].apply( null, tokens[ i ].matches );
|
|
|
|
// Return special upon seeing a positional matcher
|
|
if ( matcher[ expando ] ) {
|
|
|
|
// Find the next relative operator (if any) for proper handling
|
|
j = ++i;
|
|
for ( ; j < len; j++ ) {
|
|
if ( Expr.relative[ tokens[ j ].type ] ) {
|
|
break;
|
|
}
|
|
}
|
|
return setMatcher(
|
|
i > 1 && elementMatcher( matchers ),
|
|
i > 1 && toSelector(
|
|
|
|
// If the preceding token was a descendant combinator, insert an implicit any-element `*`
|
|
tokens
|
|
.slice( 0, i - 1 )
|
|
.concat( { value: tokens[ i - 2 ].type === " " ? "*" : "" } )
|
|
).replace( rtrim, "$1" ),
|
|
matcher,
|
|
i < j && matcherFromTokens( tokens.slice( i, j ) ),
|
|
j < len && matcherFromTokens( ( tokens = tokens.slice( j ) ) ),
|
|
j < len && toSelector( tokens )
|
|
);
|
|
}
|
|
matchers.push( matcher );
|
|
}
|
|
}
|
|
|
|
return elementMatcher( matchers );
|
|
}
|
|
|
|
function matcherFromGroupMatchers( elementMatchers, setMatchers ) {
|
|
var bySet = setMatchers.length > 0,
|
|
byElement = elementMatchers.length > 0,
|
|
superMatcher = function( seed, context, xml, results, outermost ) {
|
|
var elem, j, matcher,
|
|
matchedCount = 0,
|
|
i = "0",
|
|
unmatched = seed && [],
|
|
setMatched = [],
|
|
contextBackup = outermostContext,
|
|
|
|
// We must always have either seed elements or outermost context
|
|
elems = seed || byElement && Expr.find[ "TAG" ]( "*", outermost ),
|
|
|
|
// Use integer dirruns iff this is the outermost matcher
|
|
dirrunsUnique = ( dirruns += contextBackup == null ? 1 : Math.random() || 0.1 ),
|
|
len = elems.length;
|
|
|
|
if ( outermost ) {
|
|
|
|
// Support: IE 11+, Edge 17 - 18+
|
|
// IE/Edge sometimes throw a "Permission denied" error when strict-comparing
|
|
// two documents; shallow comparisons work.
|
|
// eslint-disable-next-line eqeqeq
|
|
outermostContext = context == document || context || outermost;
|
|
}
|
|
|
|
// Add elements passing elementMatchers directly to results
|
|
// Support: IE<9, Safari
|
|
// Tolerate NodeList properties (IE: "length"; Safari: <number>) matching elements by id
|
|
for ( ; i !== len && ( elem = elems[ i ] ) != null; i++ ) {
|
|
if ( byElement && elem ) {
|
|
j = 0;
|
|
|
|
// Support: IE 11+, Edge 17 - 18+
|
|
// IE/Edge sometimes throw a "Permission denied" error when strict-comparing
|
|
// two documents; shallow comparisons work.
|
|
// eslint-disable-next-line eqeqeq
|
|
if ( !context && elem.ownerDocument != document ) {
|
|
setDocument( elem );
|
|
xml = !documentIsHTML;
|
|
}
|
|
while ( ( matcher = elementMatchers[ j++ ] ) ) {
|
|
if ( matcher( elem, context || document, xml ) ) {
|
|
results.push( elem );
|
|
break;
|
|
}
|
|
}
|
|
if ( outermost ) {
|
|
dirruns = dirrunsUnique;
|
|
}
|
|
}
|
|
|
|
// Track unmatched elements for set filters
|
|
if ( bySet ) {
|
|
|
|
// They will have gone through all possible matchers
|
|
if ( ( elem = !matcher && elem ) ) {
|
|
matchedCount--;
|
|
}
|
|
|
|
// Lengthen the array for every element, matched or not
|
|
if ( seed ) {
|
|
unmatched.push( elem );
|
|
}
|
|
}
|
|
}
|
|
|
|
// `i` is now the count of elements visited above, and adding it to `matchedCount`
|
|
// makes the latter nonnegative.
|
|
matchedCount += i;
|
|
|
|
// Apply set filters to unmatched elements
|
|
// NOTE: This can be skipped if there are no unmatched elements (i.e., `matchedCount`
|
|
// equals `i`), unless we didn't visit _any_ elements in the above loop because we have
|
|
// no element matchers and no seed.
|
|
// Incrementing an initially-string "0" `i` allows `i` to remain a string only in that
|
|
// case, which will result in a "00" `matchedCount` that differs from `i` but is also
|
|
// numerically zero.
|
|
if ( bySet && i !== matchedCount ) {
|
|
j = 0;
|
|
while ( ( matcher = setMatchers[ j++ ] ) ) {
|
|
matcher( unmatched, setMatched, context, xml );
|
|
}
|
|
|
|
if ( seed ) {
|
|
|
|
// Reintegrate element matches to eliminate the need for sorting
|
|
if ( matchedCount > 0 ) {
|
|
while ( i-- ) {
|
|
if ( !( unmatched[ i ] || setMatched[ i ] ) ) {
|
|
setMatched[ i ] = pop.call( results );
|
|
}
|
|
}
|
|
}
|
|
|
|
// Discard index placeholder values to get only actual matches
|
|
setMatched = condense( setMatched );
|
|
}
|
|
|
|
// Add matches to results
|
|
push.apply( results, setMatched );
|
|
|
|
// Seedless set matches succeeding multiple successful matchers stipulate sorting
|
|
if ( outermost && !seed && setMatched.length > 0 &&
|
|
( matchedCount + setMatchers.length ) > 1 ) {
|
|
|
|
Sizzle.uniqueSort( results );
|
|
}
|
|
}
|
|
|
|
// Override manipulation of globals by nested matchers
|
|
if ( outermost ) {
|
|
dirruns = dirrunsUnique;
|
|
outermostContext = contextBackup;
|
|
}
|
|
|
|
return unmatched;
|
|
};
|
|
|
|
return bySet ?
|
|
markFunction( superMatcher ) :
|
|
superMatcher;
|
|
}
|
|
|
|
compile = Sizzle.compile = function( selector, match /* Internal Use Only */ ) {
|
|
var i,
|
|
setMatchers = [],
|
|
elementMatchers = [],
|
|
cached = compilerCache[ selector + " " ];
|
|
|
|
if ( !cached ) {
|
|
|
|
// Generate a function of recursive functions that can be used to check each element
|
|
if ( !match ) {
|
|
match = tokenize( selector );
|
|
}
|
|
i = match.length;
|
|
while ( i-- ) {
|
|
cached = matcherFromTokens( match[ i ] );
|
|
if ( cached[ expando ] ) {
|
|
setMatchers.push( cached );
|
|
} else {
|
|
elementMatchers.push( cached );
|
|
}
|
|
}
|
|
|
|
// Cache the compiled function
|
|
cached = compilerCache(
|
|
selector,
|
|
matcherFromGroupMatchers( elementMatchers, setMatchers )
|
|
);
|
|
|
|
// Save selector and tokenization
|
|
cached.selector = selector;
|
|
}
|
|
return cached;
|
|
};
|
|
|
|
/**
|
|
* A low-level selection function that works with Sizzle's compiled
|
|
* selector functions
|
|
* @param {String|Function} selector A selector or a pre-compiled
|
|
* selector function built with Sizzle.compile
|
|
* @param {Element} context
|
|
* @param {Array} [results]
|
|
* @param {Array} [seed] A set of elements to match against
|
|
*/
|
|
select = Sizzle.select = function( selector, context, results, seed ) {
|
|
var i, tokens, token, type, find,
|
|
compiled = typeof selector === "function" && selector,
|
|
match = !seed && tokenize( ( selector = compiled.selector || selector ) );
|
|
|
|
results = results || [];
|
|
|
|
// Try to minimize operations if there is only one selector in the list and no seed
|
|
// (the latter of which guarantees us context)
|
|
if ( match.length === 1 ) {
|
|
|
|
// Reduce context if the leading compound selector is an ID
|
|
tokens = match[ 0 ] = match[ 0 ].slice( 0 );
|
|
if ( tokens.length > 2 && ( token = tokens[ 0 ] ).type === "ID" &&
|
|
context.nodeType === 9 && documentIsHTML && Expr.relative[ tokens[ 1 ].type ] ) {
|
|
|
|
context = ( Expr.find[ "ID" ]( token.matches[ 0 ]
|
|
.replace( runescape, funescape ), context ) || [] )[ 0 ];
|
|
if ( !context ) {
|
|
return results;
|
|
|
|
// Precompiled matchers will still verify ancestry, so step up a level
|
|
} else if ( compiled ) {
|
|
context = context.parentNode;
|
|
}
|
|
|
|
selector = selector.slice( tokens.shift().value.length );
|
|
}
|
|
|
|
// Fetch a seed set for right-to-left matching
|
|
i = matchExpr[ "needsContext" ].test( selector ) ? 0 : tokens.length;
|
|
while ( i-- ) {
|
|
token = tokens[ i ];
|
|
|
|
// Abort if we hit a combinator
|
|
if ( Expr.relative[ ( type = token.type ) ] ) {
|
|
break;
|
|
}
|
|
if ( ( find = Expr.find[ type ] ) ) {
|
|
|
|
// Search, expanding context for leading sibling combinators
|
|
if ( ( seed = find(
|
|
token.matches[ 0 ].replace( runescape, funescape ),
|
|
rsibling.test( tokens[ 0 ].type ) && testContext( context.parentNode ) ||
|
|
context
|
|
) ) ) {
|
|
|
|
// If seed is empty or no tokens remain, we can return early
|
|
tokens.splice( i, 1 );
|
|
selector = seed.length && toSelector( tokens );
|
|
if ( !selector ) {
|
|
push.apply( results, seed );
|
|
return results;
|
|
}
|
|
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// Compile and execute a filtering function if one is not provided
|
|
// Provide `match` to avoid retokenization if we modified the selector above
|
|
( compiled || compile( selector, match ) )(
|
|
seed,
|
|
context,
|
|
!documentIsHTML,
|
|
results,
|
|
!context || rsibling.test( selector ) && testContext( context.parentNode ) || context
|
|
);
|
|
return results;
|
|
};
|
|
|
|
// One-time assignments
|
|
|
|
// Sort stability
|
|
support.sortStable = expando.split( "" ).sort( sortOrder ).join( "" ) === expando;
|
|
|
|
// Support: Chrome 14-35+
|
|
// Always assume duplicates if they aren't passed to the comparison function
|
|
support.detectDuplicates = !!hasDuplicate;
|
|
|
|
// Initialize against the default document
|
|
setDocument();
|
|
|
|
// Support: Webkit<537.32 - Safari 6.0.3/Chrome 25 (fixed in Chrome 27)
|
|
// Detached nodes confoundingly follow *each other*
|
|
support.sortDetached = assert( function( el ) {
|
|
|
|
// Should return 1, but returns 4 (following)
|
|
return el.compareDocumentPosition( document.createElement( "fieldset" ) ) & 1;
|
|
} );
|
|
|
|
// Support: IE<8
|
|
// Prevent attribute/property "interpolation"
|
|
// https://msdn.microsoft.com/en-us/library/ms536429%28VS.85%29.aspx
|
|
if ( !assert( function( el ) {
|
|
el.innerHTML = "<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 = "<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
|
|
var _sizzle = window.Sizzle;
|
|
|
|
Sizzle.noConflict = function() {
|
|
if ( window.Sizzle === Sizzle ) {
|
|
window.Sizzle = _sizzle;
|
|
}
|
|
|
|
return Sizzle;
|
|
};
|
|
|
|
if ( typeof define === "function" && define.amd ) {
|
|
define( function() {
|
|
return Sizzle;
|
|
} );
|
|
|
|
// Sizzle requires that there be a global window in Common-JS like environments
|
|
} else if ( typeof module !== "undefined" && module.exports ) {
|
|
module.exports = Sizzle;
|
|
} else {
|
|
window.Sizzle = Sizzle;
|
|
}
|
|
|
|
// EXPOSE
|
|
|
|
} )( window );
|