X-Git-Url: http://git.asbjorn.biz/?a=blobdiff_plain;f=src%2Fcore.js;h=9752fb16292f7fcf6f14b2aa951f76f9e529de03;hb=a584f82aef3c20e11adeecc8513920e3d2a2ae2f;hp=de82d7742a7b7a29f282d3182d29ae22141fe96f;hpb=a19a123d89424a93068bf69cd1ccbc85eec33715;p=jquery.git diff --git a/src/core.js b/src/core.js index de82d77..9752fb1 100644 --- a/src/core.js +++ b/src/core.js @@ -10,27 +10,21 @@ */ // Map over jQuery in case of overwrite -if ( window.jQuery ) - var _jQuery = window.jQuery; +var _jQuery = window.jQuery, +// Map over the $ in case of overwrite + _$ = window.$; -var jQuery = window.jQuery = function( selector, context ) { +var jQuery = window.jQuery = window.$ = function( selector, context ) { // The jQuery object is actually just the init constructor 'enhanced' - return new jQuery.prototype.init( selector, context ); + return new jQuery.fn.init( selector, context ); }; -// Map over the $ in case of overwrite -if ( window.$ ) - var _$ = window.$; - -// Map the jQuery namespace to the '$' one -window.$ = jQuery; - // 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 -var isSimple = /^.[^:#\[\.]*$/; + isSimple = /^.[^:#\[\.]*$/; jQuery.fn = jQuery.prototype = { init: function( selector, context ) { @@ -42,9 +36,9 @@ jQuery.fn = jQuery.prototype = { this[0] = selector; this.length = 1; return this; - + } // Handle HTML strings - } else if ( typeof selector == "string" ) { + if ( typeof selector == "string" ) { // Are we dealing with HTML string or an ID? var match = quickExpr.exec( selector ); @@ -60,43 +54,29 @@ jQuery.fn = jQuery.prototype = { var elem = document.getElementById( match[3] ); // Make sure an element was located - if ( elem ) + if ( elem ){ // Handle the case where IE and Opera return items // by name instead of ID if ( elem.id != match[3] ) return jQuery().find( selector ); // Otherwise, we inject the element directly into the jQuery object - else { - this[0] = elem; - this.length = 1; - return this; - } - - else - selector = []; + return jQuery( elem ); + } + selector = []; } // HANDLE: $(expr, [context]) // (which is just equivalent to: $(content).find(expr) } else - return new jQuery( context ).find( selector ); + return jQuery( context ).find( selector ); // HANDLE: $(function) // Shortcut for document ready } else if ( jQuery.isFunction( selector ) ) - return new jQuery( document )[ jQuery.fn.ready ? "ready" : "load" ]( selector ); - - return this.setArray( - // HANDLE: $(array) - selector.constructor == Array && selector || - - // HANDLE: $(arraylike) - // Watch for when an array-like object, contains DOM nodes, is passed in as the selector - (selector.jquery || selector.length && selector != window && !selector.nodeType && selector[0] != undefined && selector[0].nodeType) && jQuery.makeArray( selector ) || - - // HANDLE: $(*) - [ selector ] ); + return jQuery( document )[ jQuery.fn.ready ? "ready" : "load" ]( selector ); + + return this.setArray(jQuery.makeArray(selector)); }, // The current version of jQuery being used @@ -368,9 +348,7 @@ jQuery.fn = jQuery.prototype = { }, is: function( selector ) { - return selector ? - jQuery.multiFilter( selector, this ).length > 0 : - false; + return !!selector && jQuery.multiFilter( selector, this ).length > 0; }, hasClass: function( selector ) { @@ -482,13 +460,13 @@ jQuery.fn = jQuery.prototype = { var parts = key.split("."); parts[1] = parts[1] ? "." + parts[1] : ""; - if ( value == null ) { + if ( value === undefined ) { var data = this.triggerHandler("getData" + parts[1] + "!", [parts[0]]); - if ( data == undefined && this.length ) + if ( data === undefined && this.length ) data = jQuery.data( this[0], key ); - return data == null && parts[1] ? + return data === undefined && parts[1] ? this.data( parts[0] ) : data; } else @@ -545,7 +523,7 @@ jQuery.fn = jQuery.prototype = { }; // Give the init function the jQuery prototype for later instantiation -jQuery.prototype.init.prototype = jQuery.prototype; +jQuery.fn.init.prototype = jQuery.fn; function evalScript( i, elem ) { if ( elem.src ) @@ -562,6 +540,10 @@ function evalScript( i, elem ) { elem.parentNode.removeChild( elem ); } +function now(){ + return +new Date; +} + jQuery.extend = jQuery.fn.extend = function() { // copy reference to target object var target = arguments[0] || {}, i = 1, length = arguments.length, deep = false, options; @@ -579,9 +561,9 @@ jQuery.extend = jQuery.fn.extend = function() { target = {}; // extend jQuery itself if only one argument is passed - if ( length == 1 ) { + if ( length == i ) { target = this; - i = 0; + --i; } for ( ; i < length; i++ ) @@ -589,17 +571,19 @@ jQuery.extend = jQuery.fn.extend = function() { if ( (options = arguments[ i ]) != null ) // Extend the base object for ( var name in options ) { + var src = target[ name ], copy = options[ name ]; + // Prevent never-ending loop - if ( target === options[ name ] ) + if ( target === copy ) continue; // Recurse if we're merging object values - if ( deep && options[ name ] && typeof options[ name ] == "object" && target[ name ] && !options[ name ].nodeType ) - target[ name ] = jQuery.extend( target[ name ], options[ name ] ); + if ( deep && copy && typeof copy == "object" && src && !copy.nodeType ) + target[ name ] = jQuery.extend( deep, src, copy ); // Don't bring in undefined values - else if ( options[ name ] != undefined ) - target[ name ] = options[ name ]; + else if ( copy !== undefined ) + target[ name ] = copy; } @@ -607,10 +591,12 @@ jQuery.extend = jQuery.fn.extend = function() { return target; }; -var expando = "jQuery" + (new Date()).getTime(), uuid = 0, windowData = {}; +var expando = "jQuery" + now(), uuid = 0, windowData = {}, // exclude the following css properties to add px -var exclude = /z-?index|font-?weight|opacity|zoom|line-?height/i; + exclude = /z-?index|font-?weight|opacity|zoom|line-?height/i, +// cache getComputedStyle + getComputedStyle = document.defaultView && document.defaultView.getComputedStyle; jQuery.extend({ noConflict: function( deep ) { @@ -678,7 +664,7 @@ jQuery.extend({ jQuery.cache[ id ] = {}; // Prevent overriding the named cache with undefined values - if ( data != undefined ) + if ( data !== undefined ) jQuery.cache[ id ][ name ] = data; // Return the named cache data, or the ID for the element @@ -729,24 +715,26 @@ jQuery.extend({ // args is for internal usage only each: function( object, callback, args ) { + var name, i = 0, length = object.length; + if ( args ) { - if ( object.length == undefined ) { - for ( var name in object ) + if ( length == undefined ) { + for ( name in object ) if ( callback.apply( object[ name ], args ) === false ) break; } else - for ( var i = 0, length = object.length; i < length; i++ ) - if ( callback.apply( object[ i ], args ) === false ) + for ( ; i < length; ) + if ( callback.apply( object[ i++ ], args ) === false ) break; // A special, fast, case for the most common use of each } else { - if ( object.length == undefined ) { - for ( var name in object ) + if ( length == undefined ) { + for ( name in object ) if ( callback.call( object[ name ], name, object[ name ] ) === false ) break; } else - for ( var i = 0, length = object.length, value = object[0]; + for ( var value = object[0]; i < length && callback.call( value, i, value ) !== false; value = object[++i] ){} } @@ -831,20 +819,21 @@ jQuery.extend({ }, curCSS: function( elem, name, force ) { - var ret; + var ret, style = elem.style; // A helper method for determining if an element's values are broken function color( elem ) { if ( !jQuery.browser.safari ) return false; - - var ret = document.defaultView.getComputedStyle( elem, null ); + + // getComputedStyle is cached + var ret = getComputedStyle( elem, null ); return !ret || ret.getPropertyValue("color") == ""; } // We need to handle opacity special in IE if ( name == "opacity" && jQuery.browser.msie ) { - ret = jQuery.attr( elem.style, "opacity" ); + ret = jQuery.attr( style, "opacity" ); return ret == "" ? "1" : @@ -852,19 +841,19 @@ jQuery.extend({ } // Opera sometimes will give the wrong display answer, this fixes it, see #2037 if ( jQuery.browser.opera && name == "display" ) { - var save = elem.style.outline; - elem.style.outline = "0 solid black"; - elem.style.outline = save; + var save = style.outline; + style.outline = "0 solid black"; + style.outline = save; } // Make sure we're using the right name for getting the float value if ( name.match( /float/i ) ) name = styleFloat; - if ( !force && elem.style && elem.style[ name ] ) - ret = elem.style[ name ]; + if ( !force && style && style[ name ] ) + ret = style[ name ]; - else if ( document.defaultView && document.defaultView.getComputedStyle ) { + else if ( getComputedStyle ) { // Only "float" is needed here if ( name.match( /float/i ) ) @@ -872,23 +861,23 @@ jQuery.extend({ name = name.replace( /([A-Z])/g, "-$1" ).toLowerCase(); - var getComputedStyle = document.defaultView.getComputedStyle( elem, null ); + var computedStyle = getComputedStyle( elem, null ); - if ( getComputedStyle && !color( elem ) ) - ret = getComputedStyle.getPropertyValue( name ); + if ( computedStyle && !color( elem ) ) + ret = computedStyle.getPropertyValue( name ); // If the element isn't reporting its values properly in Safari // then some display: none elements are involved else { - var swap = [], stack = []; + var swap = [], stack = [], a = elem, i = 0; // Locate all of the parent display: none elements - for ( var a = elem; a && color(a); a = a.parentNode ) + for ( ; a && color(a); a = a.parentNode ) stack.unshift(a); // Go through and make them visible, but in reverse // (It would be better if we knew the exact display type that they had) - for ( var i = 0; i < stack.length; i++ ) + for ( ; i < stack.length; i++ ) if ( color( stack[ i ] ) ) { swap[ i ] = stack[ i ].style.display; stack[ i ].style.display = "block"; @@ -898,10 +887,10 @@ jQuery.extend({ // one special, otherwise get the value ret = name == "display" && swap[ stack.length - 1 ] != null ? "none" : - ( getComputedStyle && getComputedStyle.getPropertyValue( name ) ) || ""; + ( computedStyle && computedStyle.getPropertyValue( name ) ) || ""; // Finally, revert the display styles back - for ( var i = 0; i < swap.length; i++ ) + for ( i = 0; i < swap.length; i++ ) if ( swap[ i ] != null ) stack[ i ].style.display = swap[ i ]; } @@ -924,16 +913,16 @@ jQuery.extend({ // but a number that has a weird ending, we need to convert it to pixels if ( !/^\d+(px)?$/i.test( ret ) && /^\d/.test( ret ) ) { // Remember the original values - var style = elem.style.left, runtimeStyle = elem.runtimeStyle.left; + var left = style.left, rsLeft = elem.runtimeStyle.left; // Put in the new values to get a computed value out elem.runtimeStyle.left = elem.currentStyle.left; - elem.style.left = ret || 0; - ret = elem.style.pixelLeft + "px"; + style.left = ret || 0; + ret = style.pixelLeft + "px"; // Revert the changed values - elem.style.left = style; - elem.runtimeStyle.left = runtimeStyle; + style.left = left; + elem.runtimeStyle.left = rsLeft; } } @@ -952,7 +941,7 @@ jQuery.extend({ return; if ( elem.constructor == Number ) - elem = elem.toString(); + elem += ''; // Convert html string into DOM nodes if ( typeof elem == "string" ) { @@ -1120,12 +1109,15 @@ jQuery.extend({ makeArray: function( array ) { var ret = []; - // Need to use typeof to fight Safari childNodes crashes - if ( array.constructor != Array ) - for ( var i = 0, length = array.length; i < length; i++ ) - ret.push( array[ i ] ); - else - ret = array.slice( 0 ); + if( array != null ){ + var i = array.length; + //the window, forms, strings and functions also have 'length' + if( i == null || array.split || array.setInterval || array.call || array.elements ) + ret[0] = array; + else + while( i ) + ret[--i] = array[i]; + } return ret; }, @@ -1141,16 +1133,16 @@ jQuery.extend({ merge: function( first, second ) { // We have to loop this way because IE & Opera overwrite the length // expando of getElementsByTagName - + var i = 0; // 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 ( var i = 0; second[ i ]; i++ ) + for ( ; second[ i ]; i++ ) if ( second[ i ].nodeType != 8 ) first.push( second[ i ] ); } else - for ( var i = 0; second[ i ]; i++ ) + for ( ; second[ i ]; i++ ) first.push( second[ i ] ); return first; @@ -1197,15 +1189,11 @@ jQuery.extend({ for ( var i = 0, length = elems.length; i < length; i++ ) { var value = callback( elems[ i ], i ); - if ( value !== null && value != undefined ) { - if ( value.constructor != Array ) - value = [ value ]; - - ret = ret.concat( value ); - } + if ( value != null ) + ret[ ret.length ] = value; } - return ret; + return ret.concat.apply( [], ret ); } });