X-Git-Url: http://git.asbjorn.biz/?a=blobdiff_plain;f=src%2Fcore.js;h=e463ade017ed2b56f5ca993afd2e59025a2e61ea;hb=3e0cc815043c2425819743e907a0ce263a7ce164;hp=b747e5beaa669e57018767d7c65067f99e686ed6;hpb=d7a6e75241ecc433cd5228174960dd8465ca3ff7;p=jquery.git diff --git a/src/core.js b/src/core.js index b747e5b..e463ade 100644 --- a/src/core.js +++ b/src/core.js @@ -33,6 +33,9 @@ var jQuery = function( selector, context ) { // Check for non-word characters rnonword = /\W/, + // Check for digits + rdigit = /\d/, + // Match a standalone tag rsingleTag = /^<(\w+)\s*\/?>(?:<\/\1>)?$/, @@ -53,10 +56,10 @@ var jQuery = function( selector, context ) { // For matching the engine and version of the browser browserMatch, - + // Has the ready events already been bound? readyBound = false, - + // The functions to execute on DOM ready readyList = [], @@ -69,7 +72,10 @@ var jQuery = function( selector, context ) { push = Array.prototype.push, slice = Array.prototype.slice, trim = String.prototype.trim, - indexOf = Array.prototype.indexOf; + indexOf = Array.prototype.indexOf, + + // [[Class]] -> type pairs + class2type = {}; jQuery.fn = jQuery.prototype = { init: function( selector, context ) { @@ -86,9 +92,9 @@ jQuery.fn = jQuery.prototype = { this.length = 1; return this; } - + // The body element only exists once, optimize finding it - if ( selector === "body" && !context ) { + if ( selector === "body" && !context && document.body ) { this.context = document; this[0] = document.body; this.selector = "body"; @@ -125,9 +131,9 @@ jQuery.fn = jQuery.prototype = { ret = jQuery.buildFragment( [ match[1] ], [ doc ] ); selector = (ret.cacheable ? ret.fragment.cloneNode(true) : ret.fragment).childNodes; } - + return jQuery.merge( this, selector ); - + // HANDLE: $("#id") } else { elem = document.getElementById( match[2] ); @@ -209,7 +215,7 @@ jQuery.fn = jQuery.prototype = { this.toArray() : // Return just the object - ( num < 0 ? this.slice(num)[ 0 ] : this[ num ] ); + ( num < 0 ? this[ this.length + num ] : this[ num ] ); }, // Take an array of elements and push it onto the stack @@ -220,7 +226,7 @@ jQuery.fn = jQuery.prototype = { if ( jQuery.isArray( elems ) ) { push.apply( ret, elems ); - + } else { jQuery.merge( ret, elems ); } @@ -246,7 +252,7 @@ jQuery.fn = jQuery.prototype = { each: function( callback, args ) { return jQuery.each( this, callback, args ); }, - + ready: function( fn ) { // Attach the listeners jQuery.bindReady(); @@ -264,7 +270,7 @@ jQuery.fn = jQuery.prototype = { return this; }, - + eq: function( i ) { return i === -1 ? this.slice( i ) : @@ -289,7 +295,7 @@ jQuery.fn = jQuery.prototype = { return callback.call( elem, i, elem ); })); }, - + end: function() { return this.prevObject || jQuery(null); }, @@ -305,8 +311,11 @@ jQuery.fn = jQuery.prototype = { jQuery.fn.init.prototype = jQuery.fn; jQuery.extend = jQuery.fn.extend = function() { - // copy reference to target object - var target = arguments[0] || {}, i = 1, length = arguments.length, deep = false, options, name, src, copy; + var options, name, src, copy, copyIsArray, clone, + target = arguments[0] || {}, + i = 1, + length = arguments.length, + deep = false; // Handle a deep copy situation if ( typeof target === "boolean" ) { @@ -340,10 +349,15 @@ jQuery.extend = jQuery.fn.extend = function() { continue; } - // Recurse if we're merging object literal values or arrays - if ( deep && copy && ( jQuery.isPlainObject(copy) || jQuery.isArray(copy) ) ) { - var clone = src && ( jQuery.isPlainObject(src) || jQuery.isArray(src) ) ? src - : jQuery.isArray(copy) ? [] : {}; + // Recurse if we're merging plain objects or arrays + if ( deep && copy && ( jQuery.isPlainObject(copy) || (copyIsArray = jQuery.isArray(copy)) ) ) { + if ( copyIsArray ) { + copyIsArray = false; + clone = src && jQuery.isArray(src) ? src : []; + + } else { + clone = src && jQuery.isPlainObject(src) ? src : {}; + } // Never move original objects, clone them target[ name ] = jQuery.extend( deep, clone, copy ); @@ -370,14 +384,14 @@ jQuery.extend({ return jQuery; }, - + // Is the DOM ready to be used? Set to true once it occurs. isReady: false, // A counter to track how many items to wait for before // the ready event fires. See #6781 readyWait: 1, - + // Handle when the DOM is ready ready: function( wait ) { // A third-party is pushing the ready event forwards @@ -389,7 +403,7 @@ jQuery.extend({ if ( !jQuery.readyWait || (wait !== true && !jQuery.isReady) ) { // Make sure body exists, at least, in case IE gets a little overzealous (ticket #5443). if ( !document.body ) { - return setTimeout( jQuery.ready, 13 ); + return setTimeout( jQuery.ready, 1 ); } // Remember that the DOM is ready @@ -403,22 +417,25 @@ jQuery.extend({ // If there are functions bound, to execute if ( readyList ) { // Execute all of them - var fn, i = 0; - while ( (fn = readyList[ i++ ]) ) { - fn.call( document, jQuery ); - } + var fn, + i = 0, + ready = readyList; // Reset the list of functions readyList = null; - } - // Trigger any bound ready events - if ( jQuery.fn.triggerHandler ) { - jQuery( document ).triggerHandler( "ready" ); + while ( (fn = ready[ i++ ]) ) { + fn.call( document, jQuery ); + } + + // Trigger any bound ready events + if ( jQuery.fn.trigger ) { + jQuery( document ).trigger( "ready" ).unbind( "ready" ); + } } } }, - + bindReady: function() { if ( readyBound ) { return; @@ -429,14 +446,15 @@ jQuery.extend({ // Catch cases where $(document).ready() is called after the // browser event has already occurred. if ( document.readyState === "complete" ) { - return jQuery.ready(); + // Handle it asynchronously to allow scripts the opportunity to delay ready + return setTimeout( jQuery.ready, 1 ); } // Mozilla, Opera and webkit nightlies currently support this event if ( document.addEventListener ) { // Use the handy event callback document.addEventListener( "DOMContentLoaded", DOMContentLoaded, false ); - + // A fallback to window.onload, that will always work window.addEventListener( "load", jQuery.ready, false ); @@ -445,7 +463,7 @@ jQuery.extend({ // ensure firing before onload, // maybe late but safe also for iframes document.attachEvent("onreadystatechange", DOMContentLoaded); - + // A fallback to window.onload, that will always work window.attachEvent( "onload", jQuery.ready ); @@ -479,10 +497,14 @@ jQuery.extend({ return obj && typeof obj === "object" && "setInterval" in obj; }, + isNaN: function( obj ) { + return obj == null || !rdigit.test( obj ) || isNaN( obj ); + }, + type: function( obj ) { return obj == null ? String( obj ) : - toString.call(obj).slice(8, -1).toLowerCase(); + class2type[ toString.call(obj) ] || "object"; }, isPlainObject: function( obj ) { @@ -492,20 +514,20 @@ jQuery.extend({ if ( !obj || jQuery.type(obj) !== "object" || obj.nodeType || jQuery.isWindow( obj ) ) { return false; } - + // Not own constructor property must be Object if ( obj.constructor && !hasOwn.call(obj, "constructor") && !hasOwn.call(obj.constructor.prototype, "isPrototypeOf") ) { return false; } - + // Own properties are enumerated firstly, so to speed up, // if last one is own, then all properties are own. - + var key; for ( key in obj ) {} - + return key === undefined || hasOwn.call( obj, key ); }, @@ -515,11 +537,11 @@ jQuery.extend({ } return true; }, - + error: function( msg ) { throw msg; }, - + parseJSON: function( data ) { if ( typeof data !== "string" || !data ) { return null; @@ -527,7 +549,7 @@ jQuery.extend({ // Make sure leading/trailing whitespace is removed (IE can't handle it) data = jQuery.trim( data ); - + // Make sure the incoming data is actual JSON // Logic borrowed from http://json.org/json2.js if ( rvalidchars.test(data.replace(rvalidescape, "@") @@ -662,13 +684,14 @@ jQuery.extend({ }, merge: function( first, second ) { - var i = first.length, j = 0; + var i = first.length, + j = 0; if ( typeof second.length === "number" ) { for ( var l = second.length; j < l; j++ ) { first[ i++ ] = second[ j ]; } - + } else { while ( second[j] !== undefined ) { first[ i++ ] = second[ j++ ]; @@ -710,6 +733,7 @@ jQuery.extend({ } } + // Flatten any nested arrays return ret.concat.apply( [], ret ); }, @@ -748,7 +772,7 @@ jQuery.extend({ // The value/s can be optionally by executed if its a function access: function( elems, key, value, exec, fn, pass ) { var length = elems.length; - + // Setting many attributes if ( typeof key === "object" ) { for ( var k in key ) { @@ -756,19 +780,19 @@ jQuery.extend({ } return elems; } - + // Setting one attribute if ( value !== undefined ) { // Optionally, function values get executed if exec is true exec = !pass && exec && jQuery.isFunction(value); - + for ( var i = 0; i < length; i++ ) { fn( elems[i], key, exec ? value.call( elems[i], i, fn( elems[i], key ) ) : value, pass ); } - + return elems; } - + // Getting an attribute return length ? fn( elems[0], key ) : undefined; }, @@ -794,6 +818,11 @@ jQuery.extend({ browser: {} }); +// Populate the class2type map +jQuery.each("Boolean Number String Function Array Date RegExp Object".split(" "), function(i, name) { + class2type[ "[object " + name + "]" ] = name.toLowerCase(); +}); + browserMatch = jQuery.uaMatch( userAgent ); if ( browserMatch.browser ) { jQuery.browser[ browserMatch.browser ] = true; @@ -857,6 +886,11 @@ function doScrollCheck() { jQuery.ready(); } +// Expose jQuery as an Asynchronous Module +if ( typeof define === "function" ) { + define( "jquery", [], function () { return jQuery; } ); +} + // Expose jQuery to the global object return (window.jQuery = window.$ = jQuery);