X-Git-Url: http://git.asbjorn.biz/?a=blobdiff_plain;f=src%2Fcore.js;h=edd108906c9721b6eced51eb9809d67e9e597ab5;hb=8e53f7b5d6716e60d8c8ea7e167f2b187aae9d89;hp=ed1f7d5b18092e0d1425baea5b4c083af8b14ab0;hpb=67d445a703491c90a7d3c46be34bcdceb4d1c896;p=jquery.git diff --git a/src/core.js b/src/core.js index ed1f7d5..edd1089 100644 --- a/src/core.js +++ b/src/core.js @@ -1,9 +1,7 @@ // Define a local copy of jQuery var jQuery = function( selector, context ) { // The jQuery object is actually just the init constructor 'enhanced' - return arguments.length === 0 ? - rootjQuery : - new jQuery.fn.init( selector, context ); + return new jQuery.fn.init( selector, context ); }, // Map over jQuery in case of overwrite @@ -29,16 +27,29 @@ var jQuery = function( selector, context ) { rnotwhite = /\S/, // Used for trimming whitespace - rtrim = /^\s+|\s+$/g, + rtrim = /^(\s|\u00A0)+|(\s|\u00A0)+$/g, // Match a standalone tag - rsingleTag = /^<(\w+)\s*\/?>$/, + rsingleTag = /^<(\w+)\s*\/?>(?:<\/\1>)?$/, // Keep a UserAgent string for use with jQuery.browser - userAgent = navigator.userAgent.toLowerCase(), + userAgent = navigator.userAgent, + + // 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 = [], + + // The ready event handler + DOMContentLoaded, // Save a reference to some core methods toString = Object.prototype.toString, + hasOwnProperty = Object.prototype.hasOwnProperty, push = Array.prototype.push, slice = Array.prototype.slice, indexOf = Array.prototype.indexOf; @@ -55,7 +66,7 @@ jQuery.fn = jQuery.prototype = { // Handle $(DOMElement) if ( selector.nodeType ) { this.context = this[0] = selector; - this.length++; + this.length = 1; return this; } @@ -76,7 +87,13 @@ jQuery.fn = jQuery.prototype = { ret = rsingleTag.exec( selector ); if ( ret ) { - selector = [ doc.createElement( ret[1] ) ]; + if ( jQuery.isPlainObject( context ) ) { + selector = [ document.createElement( ret[1] ) ]; + jQuery.fn.attr.call( selector, context, true ); + + } else { + selector = [ doc.createElement( ret[1] ) ]; + } } else { ret = buildFragment( [ match[1] ], [ doc ] ); @@ -95,7 +112,7 @@ jQuery.fn = jQuery.prototype = { } // Otherwise, we inject the element directly into the jQuery object - this.length++; + this.length = 1; this[0] = elem; } @@ -131,9 +148,9 @@ jQuery.fn = jQuery.prototype = { this.context = selector.context; } - return this.setArray(jQuery.isArray( selector ) ? - selector : - jQuery.makeArray(selector)); + return jQuery.isArray( selector ) ? + this.setArray( selector ) : + jQuery.makeArray( selector, this ); }, // Start with an empty selector @@ -150,7 +167,7 @@ jQuery.fn = jQuery.prototype = { return this.length; }, - toArray: function(){ + toArray: function() { return slice.call( this, 0 ); }, @@ -205,24 +222,52 @@ jQuery.fn = jQuery.prototype = { each: function( callback, args ) { return jQuery.each( this, callback, args ); }, - - // Determine the position of an element within - // the matched set of elements - index: function( elem ) { - if ( !elem || typeof elem === "string" ) { - return jQuery.inArray( this[0], - // If it receives a string, the selector is used - // If it receives nothing, the siblings are used - elem ? jQuery( elem ) : this.parent().children() ); + + ready: function( fn ) { + // Attach the listeners + jQuery.bindReady(); + + // If the DOM is already ready + if ( jQuery.isReady ) { + // Execute the function immediately + fn.call( document, jQuery ); + + // Otherwise, remember the function for later + } else if ( readyList ) { + // Add the function to the wait list + readyList.push( fn ); } - // Locate the position of the desired element - return jQuery.inArray( - // If it receives a jQuery object, the first element is used - elem.jquery ? elem[0] : elem, this ); + + return this; + }, + + eq: function( i ) { + return i === -1 ? + this.slice( i ) : + this.slice( i, +i + 1 ); + }, + + first: function() { + return this.eq( 0 ); }, - is: function( selector ) { - return !!selector && jQuery.multiFilter( selector, this ).length > 0; + last: function() { + return this.eq( -1 ); + }, + + slice: function() { + return this.pushStack( slice.apply( this, arguments ), + "slice", slice.call(arguments).join(",") ); + }, + + map: function( callback ) { + return this.pushStack( jQuery.map(this, function( elem, i ) { + return callback.call( elem, i, elem ); + })); + }, + + end: function() { + return this.prevObject || jQuery(null); }, // For internal use only. @@ -271,19 +316,10 @@ jQuery.extend = jQuery.fn.extend = function() { continue; } - // Recurse if we're merging object values - if ( deep && copy && typeof copy === "object" && !copy.nodeType ) { - var clone; - - if ( src ) { - clone = src; - } else if ( jQuery.isArray(copy) ) { - clone = []; - } else if ( jQuery.isObject(copy) ) { - clone = {}; - } else { - clone = copy; - } + // 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) ? [] : {}; // Never move original objects, clone them target[ name ] = jQuery.extend( deep, clone, copy ); @@ -310,6 +346,84 @@ jQuery.extend({ return jQuery; }, + + // Is the DOM ready to be used? Set to true once it occurs. + isReady: false, + + // Handle when the DOM is ready + ready: function() { + // Make sure that the DOM is not already loaded + if ( !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 ); + } + + // Remember that the DOM is ready + jQuery.isReady = true; + + // 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 ); + } + + // Reset the list of functions + readyList = null; + } + + // Trigger any bound ready events + if ( jQuery.fn.triggerHandler ) { + jQuery( document ).triggerHandler( "ready" ); + } + } + }, + + bindReady: function() { + if ( readyBound ) { + return; + } + + readyBound = true; + + // Catch cases where $(document).ready() is called after the + // browser event has already occurred. + if ( document.readyState === "complete" ) { + return jQuery.ready(); + } + + // 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 ); + + // If IE event model is used + } else if ( document.attachEvent ) { + // 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 ); + + // If IE and not a frame + // continually check to see if the document is ready + var toplevel = false; + + try { + toplevel = window.frameElement == null; + } catch(e) {} + + if ( document.documentElement.doScroll && toplevel ) { + doScrollCheck(); + } + } + }, // See test/unit/core.js for details concerning isFunction. // Since version 1.3, DOM methods and functions like alert @@ -322,8 +436,28 @@ jQuery.extend({ return toString.call(obj) === "[object Array]"; }, - isObject: function( obj ) { - return this.constructor.call(obj) === Object; + isPlainObject: function( obj ) { + // Must be an Object. + // Because of IE, we also have to check the presence of the constructor property. + // Make sure that DOM nodes and window objects don't pass through, as well + if ( !obj || toString.call(obj) !== "[object Object]" || obj.nodeType || obj.setInterval ) { + return false; + } + + // Not own constructor property must be Object + if ( obj.constructor + && !hasOwnProperty.call(obj, "constructor") + && !hasOwnProperty.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 || hasOwnProperty.call( obj, key ); }, isEmptyObject: function( obj ) { @@ -333,13 +467,7 @@ jQuery.extend({ return true; }, - // check if an element is in a (or is an) XML document - isXMLDoc: function( elem ) { - // documentElement is verified for cases where it doesn't yet exist - // (such as loading iframes in IE - #4833) - var documentElement = (elem ? elem.ownerDocument || elem : 0).documentElement; - return documentElement ? documentElement.nodeName !== "HTML" : false; - }, + noop: function() {}, // Evalulates a script in a global context globalEval: function( data ) { @@ -357,7 +485,7 @@ jQuery.extend({ script.text = data; } - // Use insertBefore instead of appendChild to circumvent an IE6 bug. + // Use insertBefore instead of appendChild to circumvent an IE6 bug. // This arises when a base node is used (#2709). head.insertBefore( script, head.firstChild ); head.removeChild( script ); @@ -410,19 +538,18 @@ jQuery.extend({ return (text || "").replace( rtrim, "" ); }, - makeArray: function( array ) { - var ret = [], i; + // results is for internal usage only + makeArray: function( array, results ) { + var ret = results || []; if ( array != null ) { - i = array.length; - // The window, strings (and functions) also have 'length' - if ( i == null || typeof array === "string" || jQuery.isFunction(array) || array.setInterval ) { - ret[0] = array; + // The extra typeof function check is to prevent crashes + // in Safari 2 (See: #3039) + if ( array.length == null || typeof array === "string" || jQuery.isFunction(array) || (typeof array !== "function" && array.setInterval) ) { + push.call( ret, array ); } else { - while ( i ) { - ret[--i] = array[i]; - } + jQuery.merge( ret, array ); } } @@ -430,6 +557,10 @@ jQuery.extend({ }, inArray: function( elem, array ) { + if ( array.indexOf ) { + return array.indexOf( elem ); + } + for ( var i = 0, length = array.length; i < length; i++ ) { if ( array[ i ] === elem ) { return i; @@ -440,25 +571,20 @@ jQuery.extend({ }, merge: function( first, second ) { - // We have to loop this way because IE & Opera overwrite the length - // expando of getElementsByTagName - var i = 0, elem, pos = first.length; - - // Also, we need to make sure that the correct elements are being returned - // (IE returns comment nodes in a '*' query) - if ( !jQuery.support.getAll ) { - while ( (elem = second[ i++ ]) != null ) { - if ( elem.nodeType !== 8 ) { - first[ pos++ ] = elem; - } - } + 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 ( (elem = second[ i++ ]) != null ) { - first[ pos++ ] = elem; + while ( second[j] !== undefined ) { + first[ i++ ] = second[ j++ ]; } } + first.length = i; + return first; }, @@ -476,13 +602,14 @@ jQuery.extend({ return ret; }, - map: function( elems, callback ) { + // arg is for internal usage only + map: function( elems, callback, arg ) { var ret = [], value; // Go through the array, translating each of the items to their // new value (or values). for ( var i = 0, length = elems.length; i < length; i++ ) { - value = callback( elems[ i ], i ); + value = callback( elems[ i ], i, arg ); if ( value != null ) { ret[ ret.length ] = value; @@ -492,18 +619,76 @@ jQuery.extend({ return ret.concat.apply( [], ret ); }, - // Use of jQuery.browser is deprecated. - // It's included for backwards compatibility and plugins, - // although they should work to migrate away. - browser: { - version: (/.+(?:rv|it|ra|ie)[\/: ]([\d.]+)/.exec(userAgent) || [0,'0'])[1], - safari: /webkit/.test( userAgent ), - opera: /opera/.test( userAgent ), - msie: /msie/.test( userAgent ) && !/opera/.test( userAgent ), - mozilla: /mozilla/.test( userAgent ) && !/(compatible|webkit)/.test( userAgent ) - } + // A global GUID counter for objects + guid: 1, + + proxy: function( fn, proxy, thisObject ) { + if ( arguments.length === 2 ) { + if ( typeof proxy === "string" ) { + thisObject = fn; + fn = thisObject[ proxy ]; + proxy = undefined; + + } else if ( proxy && !jQuery.isFunction( proxy ) ) { + thisObject = proxy; + proxy = undefined; + } + } + + if ( !proxy && fn ) { + proxy = function() { + return fn.apply( thisObject || this, arguments ); + }; + } + + // Set the guid of unique handler to the same of original handler, so it can be removed + if ( fn ) { + proxy.guid = fn.guid = fn.guid || proxy.guid || jQuery.guid++; + } + + // So proxy can be declared as an argument + return proxy; + }, + + // Use of jQuery.browser is frowned upon. + // More details: http://docs.jquery.com/Utilities/jQuery.browser + uaMatch: function( ua ) { + var ret = { browser: "" }; + + ua = ua.toLowerCase(); + + if ( /webkit/.test( ua ) ) { + ret = { browser: "webkit", version: /webkit[\/ ]([\w.]+)/ }; + + } else if ( /opera/.test( ua ) ) { + ret = { browser: "opera", version: /version/.test( ua ) ? /version[\/ ]([\w.]+)/ : /opera[\/ ]([\w.]+)/ }; + + } else if ( /msie/.test( ua ) ) { + ret = { browser: "msie", version: /msie ([\w.]+)/ }; + + } else if ( /mozilla/.test( ua ) && !/compatible/.test( ua ) ) { + ret = { browser: "mozilla", version: /rv:([\w.]+)/ }; + } + + ret.version = (ret.version && ret.version.exec( ua ) || [0, "0"])[1]; + + return ret; + }, + + browser: {} }); +browserMatch = jQuery.uaMatch( userAgent ); +if ( browserMatch.browser ) { + jQuery.browser[ browserMatch.browser ] = true; + jQuery.browser.version = browserMatch.version; +} + +// Deprecated, use jQuery.browser.webkit instead +if ( jQuery.browser.webkit ) { + jQuery.browser.safari = true; +} + if ( indexOf ) { jQuery.inArray = function( elem, array ) { return indexOf.call( array, elem ); @@ -513,6 +698,48 @@ if ( indexOf ) { // All jQuery objects should point back to these rootjQuery = jQuery(document); +// Cleanup functions for the document ready method +if ( document.addEventListener ) { + DOMContentLoaded = function() { + document.removeEventListener( "DOMContentLoaded", DOMContentLoaded, false ); + jQuery.ready(); + }; + +} else if ( document.attachEvent ) { + DOMContentLoaded = function() { + // Make sure body exists, at least, in case IE gets a little overzealous (ticket #5443). + if ( document.readyState === "complete" ) { + document.detachEvent( "onreadystatechange", DOMContentLoaded ); + jQuery.ready(); + } + }; +} + +// The DOM ready check for Internet Explorer +function doScrollCheck() { + if ( jQuery.isReady ) { + return; + } + + try { + // If IE is used, use the trick by Diego Perini + // http://javascript.nwbox.com/IEContentLoaded/ + document.documentElement.doScroll("left"); + } catch( error ) { + setTimeout( doScrollCheck, 1 ); + return; + } + + // and execute any waiting functions + jQuery.ready(); +} + +if ( indexOf ) { + jQuery.inArray = function( elem, array ) { + return indexOf.call( array, elem ); + }; +} + function evalScript( i, elem ) { if ( elem.src ) { jQuery.ajax({ @@ -531,32 +758,31 @@ function evalScript( i, elem ) { // Mutifunctional method to get and set values to a collection // The value/s can be optionally by executed if its a function -function access( elems, key, value, exec, fn ) { - var l = elems.length; +function access( elems, key, value, exec, fn, pass ) { + var length = elems.length; // Setting many attributes if ( typeof key === "object" ) { - for (var k in key) { - access(elems, k, key[k], exec, fn); - } + for ( var k in key ) { + access( elems, k, key[k], exec, fn, value ); + } return elems; } // Setting one attribute - if (value !== undefined) { + if ( value !== undefined ) { // Optionally, function values get executed if exec is true - exec = exec && jQuery.isFunction(value); + exec = !pass && exec && jQuery.isFunction(value); - for (var i = 0; i < l; i++) { - var elem = elems[i], - val = exec ? value.call(elem, i) : value; - fn(elem, key, val); + 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 l ? fn(elems[0], key) : null; + return length ? fn( elems[0], key ) : null; } function now() {