X-Git-Url: http://git.asbjorn.biz/?a=blobdiff_plain;f=src%2Fcore.js;h=c712cc28b91a3229a61b98b4288cd7da7bc83552;hb=c85243dfc4b09e6bb87532f2025f686b6ae45a22;hp=a0533b178222d28712e30d659152a81d0e4d4eff;hpb=3f5ff3097c315456fe92c9b1e4578590e1eb8648;p=jquery.git diff --git a/src/core.js b/src/core.js index a0533b1..c712cc2 100644 --- a/src/core.js +++ b/src/core.js @@ -21,7 +21,7 @@ var jQuery = window.jQuery = window.$ = function( selector, context ) { // A simple way to check for HTML strings or ID strings // (both of which we optimize for) -var quickExpr = /^[^<]*(<(.|\s)+>)[^>]*$|^#(\w+)$/, +var quickExpr = /^[^<]*(<(.|\s)+>)[^>]*$|^#([\w-]+)$/, // Is it a simple selector isSimple = /^.[^:#\[\.]*$/, @@ -38,10 +38,11 @@ jQuery.fn = jQuery.prototype = { if ( selector.nodeType ) { this[0] = selector; this.length = 1; + this.context = selector; return this; } // Handle HTML strings - if ( typeof selector == "string" ) { + if ( typeof selector === "string" ) { // Are we dealing with HTML string or an ID? var match = quickExpr.exec( selector ); @@ -64,7 +65,10 @@ jQuery.fn = jQuery.prototype = { return jQuery().find( selector ); // Otherwise, we inject the element directly into the jQuery object - return jQuery( elem ); + var ret = jQuery( elem ); + ret.context = document; + ret.selector = selector; + return ret; } selector = []; } @@ -82,6 +86,9 @@ jQuery.fn = jQuery.prototype = { return this.setArray(jQuery.makeArray(selector)); }, + // Start with an empty selector + selector: "", + // The current version of jQuery being used jquery: "@VERSION", @@ -90,13 +97,10 @@ jQuery.fn = jQuery.prototype = { return this.length; }, - // The number of elements contained in the matched element set - length: 0, - // Get the Nth element in the matched element set OR // Get the whole matched element set as a clean array get: function( num ) { - return num == undefined ? + return num === undefined ? // Return a 'clean' array jQuery.makeArray( this ) : @@ -107,13 +111,20 @@ jQuery.fn = jQuery.prototype = { // Take an array of elements and push it onto the stack // (returning the new matched element set) - pushStack: function( elems ) { + pushStack: function( elems, name, selector ) { // Build a new jQuery matched element set var ret = jQuery( elems ); // Add the old object onto the stack (as a reference) ret.prevObject = this; + ret.context = this.context; + + if ( name === "find" ) + ret.selector = this.selector + (this.selector ? " " : "") + selector; + else if ( name ) + ret.selector = this.selector + "." + name + "(" + selector + ")"; + // Return the newly-formed element set return ret; }, @@ -153,7 +164,7 @@ jQuery.fn = jQuery.prototype = { var options = name; // Look for the case where we're accessing a style value - if ( name.constructor == String ) + if ( typeof name === "string" ) if ( value === undefined ) return this[0] && jQuery[ type || "attr" ]( this[0], name ); @@ -183,7 +194,7 @@ jQuery.fn = jQuery.prototype = { }, text: function( text ) { - if ( typeof text != "object" && text != null ) + if ( typeof text !== "object" && text != null ) return this.empty().append( (this[0] && this[0].ownerDocument || document).createTextNode( text ) ); var ret = ""; @@ -232,27 +243,27 @@ jQuery.fn = jQuery.prototype = { }, append: function() { - return this.domManip(arguments, true, false, function(elem){ + return this.domManip(arguments, true, function(elem){ if (this.nodeType == 1) this.appendChild( elem ); }); }, prepend: function() { - return this.domManip(arguments, true, true, function(elem){ + return this.domManip(arguments, true, function(elem){ if (this.nodeType == 1) this.insertBefore( elem, this.firstChild ); }); }, before: function() { - return this.domManip(arguments, false, false, function(elem){ + return this.domManip(arguments, false, function(elem){ this.parentNode.insertBefore( elem, this ); }); }, after: function() { - return this.domManip(arguments, false, true, function(elem){ + return this.domManip(arguments, false, function(elem){ this.parentNode.insertBefore( elem, this.nextSibling ); }); }, @@ -266,9 +277,9 @@ jQuery.fn = jQuery.prototype = { return jQuery.find( selector, elem ); }); - return this.pushStack( /[^+>] [^+>]/.test( selector ) || selector.indexOf("..") > -1 ? + return this.pushStack( /[^+>] [^+>]/.test( selector ) ? jQuery.unique( elems ) : - elems ); + elems, "find", selector ); }, clone: function( events ) { @@ -295,7 +306,7 @@ jQuery.fn = jQuery.prototype = { // removeData doesn't work here, IE removes it from the original as well // this is primarily for IE but the data expando shouldn't be copied over in any browser var clone = ret.find("*").andSelf().each(function(){ - if ( this[ expando ] != undefined ) + if ( this[ expando ] !== undefined ) this[ expando ] = null; }); @@ -322,14 +333,16 @@ jQuery.fn = jQuery.prototype = { return selector.call( elem, i ); }) || - jQuery.multiFilter( selector, this ) ); + jQuery.multiFilter( selector, jQuery.grep(this, function(elem){ + return elem.nodeType === 1; + }) ), "filter", selector ); }, not: function( selector ) { - if ( selector.constructor == String ) + if ( typeof selector === "string" ) // test special case where just one selector is passed in if ( isSimple.test( selector ) ) - return this.pushStack( jQuery.multiFilter( selector, this, true ) ); + return this.pushStack( jQuery.multiFilter( selector, this, true ), "not", selector ); else selector = jQuery.multiFilter( selector, this ); @@ -342,7 +355,7 @@ jQuery.fn = jQuery.prototype = { add: function( selector ) { return this.pushStack( jQuery.unique( jQuery.merge( this.get(), - typeof selector == 'string' ? + typeof selector === "string" ? jQuery( selector ) : jQuery.makeArray( selector ) ))); @@ -353,15 +366,17 @@ jQuery.fn = jQuery.prototype = { }, hasClass: function( selector ) { - return this.is( "." + selector ); + return !!selector && this.is( "." + selector ); }, val: function( value ) { - if ( value == undefined ) { - - if ( this.length ) { - var elem = this[0]; + if ( value === undefined ) { + var elem = this[0]; + if ( elem ) { + if( jQuery.nodeName( elem, 'option' ) ) + return (elem.attributes.value || {}).specified ? elem.value : elem.text; + // We need to handle select boxes special if ( jQuery.nodeName( elem, "select" ) ) { var index = elem.selectedIndex, @@ -379,7 +394,7 @@ jQuery.fn = jQuery.prototype = { if ( option.selected ) { // Get the specifc value for the option - value = jQuery.browser.msie && !option.attributes.value.specified ? option.text : option.value; + value = jQuery(option).val(); // We don't need an array for one selects if ( one ) @@ -390,29 +405,30 @@ jQuery.fn = jQuery.prototype = { } } - return values; + return values; + } // Everything else, we just grab the value - } else - return (this[0].value || "").replace(/\r/g, ""); + return (elem.value || "").replace(/\r/g, ""); } return undefined; } + if ( typeof value === "number" ) + value += ''; + return this.each(function(){ if ( this.nodeType != 1 ) return; - if ( value.constructor == Array && /radio|checkbox/.test( this.type ) ) + if ( jQuery.isArray(value) && /radio|checkbox/.test( this.type ) ) this.checked = (jQuery.inArray(this.value, value) >= 0 || jQuery.inArray(this.name, value) >= 0); else if ( jQuery.nodeName( this, "select" ) ) { - var values = value.constructor == Array ? - value : - [ value ]; + var values = jQuery.makeArray(value); jQuery( "option", this ).each(function(){ this.selected = (jQuery.inArray( this.value, values ) >= 0 || @@ -428,8 +444,8 @@ jQuery.fn = jQuery.prototype = { }, html: function( value ) { - return value == undefined ? - (this.length ? + return value === undefined ? + (this[0] ? this[0].innerHTML : null) : this.empty().append( value ); @@ -440,11 +456,12 @@ jQuery.fn = jQuery.prototype = { }, eq: function( i ) { - return this.slice( i, i + 1 ); + return this.slice( i, +i + 1 ); }, slice: function() { - return this.pushStack( Array.prototype.slice.apply( this, arguments ) ); + return this.pushStack( Array.prototype.slice.apply( this, arguments ), + "slice", Array.prototype.slice.call(arguments).join(",") ); }, map: function( callback ) { @@ -467,7 +484,7 @@ jQuery.fn = jQuery.prototype = { if ( data === undefined && this.length ) data = jQuery.data( this[0], key ); - return data === undefined && parts[1] ? + return data == null && parts[1] ? this.data( parts[0] ) : data; } else @@ -482,44 +499,29 @@ jQuery.fn = jQuery.prototype = { }); }, - domManip: function( args, table, reverse, callback ) { - var clone = this.length > 1, elems; - - return this.each(function(){ - if ( !elems ) { - elems = jQuery.clean( args, this.ownerDocument ); - - if ( reverse ) - elems.reverse(); - } - - var obj = this; - - if ( table && jQuery.nodeName( this, "table" ) && jQuery.nodeName( elems[0], "tr" ) ) - obj = this.getElementsByTagName("tbody")[0] || this.appendChild( this.ownerDocument.createElement("tbody") ); - - var scripts = jQuery( [] ); - - jQuery.each(elems, function(){ - var elem = clone ? - jQuery( this ).clone( true )[0] : - this; - - // execute all scripts after the elements have been injected - if ( jQuery.nodeName( elem, "script" ) ) { - scripts = scripts.add( elem ); - } else { - // Remove any inner scripts for later evaluation - if ( elem.nodeType == 1 ) - scripts = scripts.add( jQuery( "script", elem ).remove() ); - - // Inject the elements into the document - callback.call( obj, elem ); - } - }); + domManip: function( args, table, callback ) { + if ( this[0] ) { + var fragment = document.createDocumentFragment(), + scripts = jQuery.clean( args, this[0].ownerDocument, fragment ), + first = fragment.firstChild, + extra = this.length > 1 ? fragment.cloneNode(true) : fragment; + + if ( first ) + for ( var i = 0, l = this.length; i < l; i++ ) + callback.call( root(this[i], first), i > 0 ? extra.cloneNode(true) : fragment ); + + if ( scripts ) + jQuery.each( scripts, evalScript ); + } - scripts.each( evalScript ); - }); + return this; + + function root( elem, cur ) { + return table && jQuery.nodeName(elem, "table") && jQuery.nodeName(cur, "tr") ? + (elem.getElementsByTagName("tbody")[0] || + elem.appendChild(elem.ownerDocument.createElement("tbody"))) : + elem; + } } }; @@ -550,7 +552,7 @@ jQuery.extend = jQuery.fn.extend = function() { var target = arguments[0] || {}, i = 1, length = arguments.length, deep = false, options; // Handle a deep copy situation - if ( target.constructor == Boolean ) { + if ( typeof target === "boolean" ) { deep = target; target = arguments[1] || {}; // skip the boolean and the target @@ -558,7 +560,7 @@ jQuery.extend = jQuery.fn.extend = function() { } // Handle case when target is a string or something (possible in deep copy) - if ( typeof target != "object" && typeof target != "function" ) + if ( typeof target !== "object" && !jQuery.isFunction(target) ) target = {}; // extend jQuery itself if only one argument is passed @@ -579,8 +581,11 @@ jQuery.extend = jQuery.fn.extend = function() { continue; // Recurse if we're merging object values - if ( deep && copy && typeof copy == "object" && src && !copy.nodeType ) - target[ name ] = jQuery.extend( deep, src, copy ); + if ( deep && copy && typeof copy === "object" && !copy.nodeType ) + target[ name ] = jQuery.extend( deep, + // Never move original objects, clone them + src || ( copy.length != null ? [ ] : { } ) + , copy ); // Don't bring in undefined values else if ( copy !== undefined ) @@ -593,11 +598,11 @@ jQuery.extend = jQuery.fn.extend = function() { }; var expando = "jQuery" + now(), uuid = 0, windowData = {}, - -// exclude the following css properties to add px + // exclude the following css properties to add px exclude = /z-?index|font-?weight|opacity|zoom|line-?height/i, -// cache getComputedStyle - getComputedStyle = document.defaultView && document.defaultView.getComputedStyle; + // cache defaultView + defaultView = document.defaultView || {}, + toString = Object.prototype.toString; jQuery.extend({ noConflict: function( deep ) { @@ -609,10 +614,15 @@ jQuery.extend({ return jQuery; }, - // See test/unit/core.js for details concerning this function. - isFunction: function( fn ) { - return !!fn && typeof fn != "string" && !fn.nodeName && - fn.constructor != Array && /function/i.test( fn + "" ); + // See test/unit/core.js for details concerning isFunction. + // Since version 1.3, DOM methods and functions like alert + // aren't supported. They return false on IE (#2968). + isFunction: function( obj ) { + return toString.call(obj) === "[object Function]"; + }, + + isArray: function( obj ) { + return toString.call(obj) === "[object Array]"; }, // check if an element is in a (or is an) XML document @@ -637,7 +647,9 @@ jQuery.extend({ else script.appendChild( document.createTextNode( data ) ); - head.appendChild( script ); + // 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 ); } }, @@ -670,7 +682,7 @@ jQuery.extend({ // Return the named cache data, or the ID for the element return name ? - jQuery.cache[ id ][ name ] : + jQuery.cache[ id ][ name ] || null : id; }, @@ -719,7 +731,7 @@ jQuery.extend({ var name, i = 0, length = object.length; if ( args ) { - if ( length == undefined ) { + if ( length === undefined ) { for ( name in object ) if ( callback.apply( object[ name ], args ) === false ) break; @@ -730,7 +742,7 @@ jQuery.extend({ // A special, fast, case for the most common use of each } else { - if ( length == undefined ) { + if ( length === undefined ) { for ( name in object ) if ( callback.call( object[ name ], name, object[ name ] ) === false ) break; @@ -743,14 +755,14 @@ jQuery.extend({ }, prop: function( elem, value, type, i, name ) { - // Handle executable functions - if ( jQuery.isFunction( value ) ) - value = value.call( elem, i ); - - // Handle passing in a number to a CSS property - return value && value.constructor == Number && type == "curCSS" && !exclude.test( name ) ? - value + "px" : - value; + // Handle executable functions + if ( jQuery.isFunction( value ) ) + value = value.call( elem, i ); + + // Handle passing in a number to a CSS property + return typeof value === "number" && type == "curCSS" && !exclude.test( name ) ? + value + "px" : + value; }, className: { @@ -765,14 +777,14 @@ jQuery.extend({ // internal only, use removeClass("class") remove: function( elem, classNames ) { if (elem.nodeType == 1) - elem.className = classNames != undefined ? + elem.className = classNames !== undefined ? jQuery.grep(elem.className.split(/\s+/), function(className){ return !jQuery.className.has( classNames, className ); }).join(" ") : ""; }, - // internal only, use is(".class") + // internal only, use hasClass("class") has: function( elem, className ) { return jQuery.inArray( className, (elem.className || elem).toString().split(/\s+/) ) > -1; } @@ -827,8 +839,8 @@ jQuery.extend({ if ( !jQuery.browser.safari ) return false; - // getComputedStyle is cached - var ret = getComputedStyle( elem, null ); + // defaultView is cached + var ret = defaultView.getComputedStyle( elem, null ); return !ret || ret.getPropertyValue("color") == ""; } @@ -854,7 +866,7 @@ jQuery.extend({ if ( !force && style && style[ name ] ) ret = style[ name ]; - else if ( getComputedStyle ) { + else if ( defaultView.getComputedStyle ) { // Only "float" is needed here if ( name.match( /float/i ) ) @@ -862,7 +874,7 @@ jQuery.extend({ name = name.replace( /([A-Z])/g, "-$1" ).toLowerCase(); - var computedStyle = getComputedStyle( elem, null ); + var computedStyle = defaultView.getComputedStyle( elem, null ); if ( computedStyle && !color( elem ) ) ret = computedStyle.getPropertyValue( name ); @@ -930,22 +942,23 @@ jQuery.extend({ return ret; }, - clean: function( elems, context ) { - var ret = []; + clean: function( elems, context, fragment ) { + var ret = [], scripts = []; context = context || document; + // !context.createElement fails in IE with an error but returns typeof 'object' - if (typeof context.createElement == 'undefined') + if ( typeof context.createElement === "undefined" ) context = context.ownerDocument || context[0] && context[0].ownerDocument || document; jQuery.each(elems, function(i, elem){ + if ( typeof elem === "number" ) + elem += ''; + if ( !elem ) return; - if ( elem.constructor == Number ) - elem += ''; - // Convert html string into DOM nodes - if ( typeof elem == "string" ) { + if ( typeof elem === "string" ) { // Fix "XHTML"-style tags in all browsers elem = elem.replace(/(<(\w+)[^>]*?)\/>/g, function(all, front, tag){ return tag.match(/^(abbr|br|col|img|input|link|meta|param|hr|area|embed)$/i) ? @@ -1011,20 +1024,39 @@ jQuery.extend({ div.insertBefore( context.createTextNode( elem.match(/^\s*/)[0] ), div.firstChild ); } + + if ( fragment ) { + var found = div.getElementsByTagName("script"); + + while ( found.length ) { + scripts.push( found[0] ); + found[0].parentNode.removeChild( found[0] ); + } + } elem = jQuery.makeArray( div.childNodes ); } - if ( elem.length === 0 && (!jQuery.nodeName( elem, "form" ) && !jQuery.nodeName( elem, "select" )) ) - return; - - if ( elem[0] == undefined || jQuery.nodeName( elem, "form" ) || elem.options ) + if ( elem.nodeType ) ret.push( elem ); - else ret = jQuery.merge( ret, elem ); }); + + if ( fragment ) { + for ( var i = 0; ret[i]; i++ ) { + if ( jQuery.nodeName( ret[i], "script" ) ) { + ret[i].parentNode.removeChild( ret[i] ); + } else { + if ( ret[i].nodeType === 1 ) + ret = jQuery.merge( ret, ret[i].getElementsByTagName("script")); + fragment.appendChild( ret[i] ); + } + } + + return scripts; + } return ret; }, @@ -1055,7 +1087,7 @@ jQuery.extend({ elem.parentNode.selectedIndex; // If applicable, access the attribute via the DOM 0 way - if ( notxml && !special && name in elem ) { + if ( name in elem && notxml && !special ) { if ( set ){ // We can't allow the type property to be changed (since it causes problems in IE) if ( name == "type" && jQuery.nodeName( elem, "input" ) && elem.parentNode ) @@ -1078,11 +1110,13 @@ jQuery.extend({ // convert the value to a string (all browsers do this but IE) see #1070 elem.setAttribute( name, "" + value ); - if ( msie && special && notxml ) - return elem.getAttribute( name, 2 ); - - return elem.getAttribute( name ); + var attr = msie && notxml && special + // Some attributes require a special call on IE + ? elem.getAttribute( name, 2 ) + : elem.getAttribute( name ); + // Non-existent attributes return null, we normalize to undefined + return attr === null ? undefined : attr; } // elem is actually elem.style ... set the style @@ -1123,8 +1157,8 @@ jQuery.extend({ if( array != null ){ var i = array.length; - //the window, strings and functions also have 'length' - if( i == null || array.split || array.setInterval || array.call ) + // The window, strings (and functions) also have 'length' + if( i == null || typeof array === "string" || jQuery.isFunction(array) || array.setInterval ) ret[0] = array; else while( i ) @@ -1146,17 +1180,17 @@ jQuery.extend({ merge: function( first, second ) { // We have to loop this way because IE & Opera overwrite the length // expando of getElementsByTagName - var i = 0; + 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.browser.msie ) { - for ( ; second[ i ]; i++ ) - if ( second[ i ].nodeType != 8 ) - first.push( second[ i ] ); + while ( (elem = second[ i++ ]) ) + if ( elem.nodeType != 8 ) + first[ pos++ ] = elem; } else - for ( ; second[ i ]; i++ ) - first.push( second[ i ] ); + while ( (elem = second[ i++ ]) ) + first[ pos++ ] = elem; return first; }, @@ -1214,7 +1248,7 @@ var userAgent = navigator.userAgent.toLowerCase(); // Figure out what browser is being used jQuery.browser = { - version: (userAgent.match( /.+(?:rv|it|ra|ie)[\/: ]([\d.]+)/ ) || [])[1], + version: (userAgent.match( /.+(?:rv|it|ra|ie)[\/: ]([\d.]+)/ ) || [0,'0'])[1], safari: /webkit/.test( userAgent ), opera: /opera/.test( userAgent ), msie: /msie/.test( userAgent ) && !/opera/.test( userAgent ), @@ -1237,7 +1271,8 @@ jQuery.extend({ styleFloat: styleFloat, readonly: "readOnly", maxlength: "maxLength", - cellspacing: "cellSpacing" + cellspacing: "cellSpacing", + rowspan: "rowSpan" } }); @@ -1258,7 +1293,7 @@ jQuery.each({ if ( selector && typeof selector == "string" ) ret = jQuery.multiFilter( selector, ret ); - return this.pushStack( jQuery.unique( ret ) ); + return this.pushStack( jQuery.unique( ret ), name, selector ); }; }); @@ -1299,9 +1334,9 @@ jQuery.each({ }, remove: function( selector ) { - if ( !selector || jQuery.filter( selector, [ this ] ).r.length ) { + if ( !selector || jQuery.filter( selector, [ this ] ).length ) { // Prevent memory leaks - jQuery( "*", this ).add(this).each(function(){ + jQuery( "*", this ).add([this]).each(function(){ jQuery.event.remove(this); jQuery.removeData(this); }); @@ -1331,7 +1366,7 @@ jQuery.each([ "Height", "Width" ], function(i, name){ // Get window width or height return this[0] == window ? // Opera reports document.body.client[Width/Height] properly in both quirks and standards - jQuery.browser.opera && document.body[ "client" + name ] || + jQuery.browser.opera && document.body.parentNode[ "client" + name ] || // Safari reports inner[Width/Height] just fine (Mozilla and Opera include scroll bar widths) jQuery.browser.safari && window[ "inner" + name ] || @@ -1348,11 +1383,16 @@ jQuery.each([ "Height", "Width" ], function(i, name){ ) : // Get or set width or height on the element - size == undefined ? + size === undefined ? // Get width or height on the element (this.length ? jQuery.css( this[0], type ) : null) : // Set the width or height on the element (default to pixels if value is unitless) - this.css( type, size.constructor == String ? size : size + "px" ); + this.css( type, typeof size === "string" ? size : size + "px" ); }; }); + +// Helper function used by the dimensions and offset modules +function num(elem, prop) { + return elem[0] && parseInt( jQuery.curCSS(elem[0], prop, true), 10 ) || 0; +}