X-Git-Url: http://git.asbjorn.biz/?a=blobdiff_plain;f=src%2Fcore.js;h=b738ce485584f2d31d65b13eef387e4a4f238662;hb=59802928566b6be3a66d65e77c2418fff37e6f5f;hp=5fa944bc307f1472ab417afac3111fb05dcef5b8;hpb=4ea4fad0902839c06c281b5de7b0aca29922b63d;p=jquery.git diff --git a/src/core.js b/src/core.js index 5fa944b..b738ce4 100644 --- a/src/core.js +++ b/src/core.js @@ -29,16 +29,17 @@ 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(), // 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; @@ -52,15 +53,10 @@ jQuery.fn = jQuery.prototype = { return this; } - // $("body"): Shortcut for quickly finding the body element - if ( selector === "body" && !context && document.body ) { - selector = document.body; - } - // Handle $(DOMElement) if ( selector.nodeType ) { this.context = this[0] = selector; - this.length++; + this.length = 1; return this; } @@ -100,7 +96,7 @@ jQuery.fn = jQuery.prototype = { } // Otherwise, we inject the element directly into the jQuery object - this.length++; + this.length = 1; this[0] = elem; } @@ -111,6 +107,8 @@ jQuery.fn = jQuery.prototype = { // HANDLE: $("TAG") } else if ( !context && /^\w+$/.test( selector ) ) { + this.selector = selector; + this.context = document; selector = document.getElementsByTagName( selector ); // HANDLE: $(expr, $(...)) @@ -129,15 +127,14 @@ jQuery.fn = jQuery.prototype = { return rootjQuery.ready( selector ); } - // Make sure that old selector state is passed along - if ( selector.selector && selector.context ) { + if (selector.selector !== undefined) { this.selector = selector.selector; 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 @@ -226,7 +223,7 @@ jQuery.fn = jQuery.prototype = { }, is: function( selector ) { - return !!selector && jQuery.multiFilter( selector, this ).length > 0; + return !!selector && jQuery.filter( selector, this ).length > 0; }, // For internal use only. @@ -275,19 +272,10 @@ 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 + if ( deep && copy && jQuery.isPlainObject(copy) ) { + // Don't extend not object literals + var clone = src && jQuery.isPlainObject(src) ? src : {}; // Never move original objects, clone them target[ name ] = jQuery.extend( deep, clone, copy ); @@ -326,8 +314,25 @@ jQuery.extend({ return toString.call(obj) === "[object Array]"; }, - isObject: function( obj ) { - return this.constructor.call(obj) === Object; + isPlainObject: function( obj ) { + if ( toString.call(obj) !== "[object Object]" || typeof obj.nodeType === "number" ) { + 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 iterated firstly, + //so to speed up, we can test last one if it is own or not + + var key; + for ( key in obj ) {} + + return key === undefined || hasOwnProperty.call( obj, key ); }, isEmptyObject: function( obj ) { @@ -337,14 +342,6 @@ 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; - }, - // Evalulates a script in a global context globalEval: function( data ) { if ( data && rnotwhite.test(data) ) { @@ -414,19 +411,16 @@ 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; + if ( array.length == null || typeof array === "string" || jQuery.isFunction(array) || array.setInterval ) { + push.call( ret, array ); } else { - while ( i ) { - ret[--i] = array[i]; - } + jQuery.merge( ret, array ); } } @@ -434,6 +428,10 @@ 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; @@ -444,45 +442,24 @@ 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 pos, i = second.length; - } else { - while ( (elem = second[ i++ ]) != null ) { - first[ pos++ ] = elem; - } + // We have to get length this way when IE & Opera overwrite the length + // expando of getElementsByTagName + if ( i && i.nodeType ) { + for ( i = 0; second[i]; ++i ) {} } - - return first; - }, - - unique: function( array ) { - var ret = [], done = {}, id; - - try { - for ( var i = 0, length = array.length; i < length; i++ ) { - id = jQuery.data( array[ i ] ); - - if ( !done[ id ] ) { - done[ id ] = true; - ret.push( array[ i ] ); - } - } - } catch( e ) { - ret = array; + + pos = i + first.length; + + // Correct length for non Arrays + first.length = pos; + + while ( i ) { + first[ --pos ] = second[ --i ]; } - return ret; + return first; }, grep: function( elems, callback, inv ) { @@ -499,13 +476,14 @@ 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; @@ -552,6 +530,36 @@ 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; + + // Setting many attributes + if ( typeof key === "object" ) { + for (var k in key) { + access(elems, k, key[k], exec, fn); + } + return elems; + } + + // Setting one attribute + if (value !== undefined) { + // Optionally, function values get executed if exec is true + exec = 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); + } + return elems; + } + + // Getting an attribute + return l ? fn(elems[0], key) : null; +} + function now() { return (new Date).getTime(); }