-// Will speed up references to window, and allows munging its name.
-var window = this,
-
- // Will speed up references to undefined, and allows munging its name.
- undefined,
+// 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 );
+ },
// Map over jQuery in case of overwrite
_jQuery = window.jQuery,
// Map over the $ in case of overwrite
_$ = window.$,
- // Define a local copy of jQuery
- jQuery,
+ // Use the correct document accordingly with window argument (sandbox)
+ document = window.document,
// A central reference to the root jQuery(document)
rootjQuery,
- jQuery = window.jQuery = window.$ = function( selector, context ) {
- // The jQuery object is actually just the init constructor 'enhanced'
- return arguments.length === 0 ?
- rootjQuery :
- new jQuery.fn.init( selector, context );
- },
-
// A simple way to check for HTML strings or ID strings
// (both of which we optimize for)
quickExpr = /^[^<]*(<(.|\s)+>)[^>]*$|^#([\w-]+)$/,
// Is it a simple selector
isSimple = /^.[^:#\[\.,]*$/,
+ // Check if a string has a non-whitespace character in it
+ rnotwhite = /\S/,
+
+ // Used for trimming whitespace
+ rtrim = /^\s+|\s+$/g,
+
// Keep a UserAgent string for use with jQuery.browser
userAgent = navigator.userAgent.toLowerCase(),
- // Save a reference to the core toString method
- toString = Object.prototype.toString;
+ // Save a reference to some core methods
+ toString = Object.prototype.toString,
+ push = Array.prototype.push,
+ slice = Array.prototype.slice;
+
+// Expose jQuery to the global object
+window.jQuery = window.$ = jQuery;
jQuery.fn = jQuery.prototype = {
init: function( selector, context ) {
var match, elem, ret;
// Handle $(""), $(null), or $(undefined)
- if ( !selector ) {
- this.length = 0;
- return this;
- }
+ if ( !selector ) return this;
// Handle $(DOMElement)
if ( selector.nodeType ) {
- this[0] = selector;
- this.length = 1;
- this.context = selector;
+ this.context = this[0] = selector;
+ this.length++;
return this;
}
} else {
elem = document.getElementById( match[3] );
- // Handle the case where IE and Opera return items
- // by name instead of ID
- if ( elem && elem.id !== match[3] ) {
- return rootjQuery.find( selector );
+ if ( elem ) {
+ // Handle the case where IE and Opera return items
+ // by name instead of ID
+ if ( elem.id !== match[3] ) return rootjQuery.find( selector );
+
+ // Otherwise, we inject the element directly into the jQuery object
+ this.length++;
+ this[0] = elem;
}
- // Otherwise, we inject the element directly into the jQuery object
- ret = jQuery( elem || null );
- ret.context = document;
- ret.selector = selector;
- return ret;
+ this.context = document;
+ this.selector = selector;
+ return this;
}
// HANDLE: $(expr, $(...))
// The current version of jQuery being used
jquery: "@VERSION",
+ // The default length of a jQuery object is 0
+ length: 0,
+
// The number of elements contained in the matched element set
size: function() {
return this.length;
},
+ toArray: function(){
+ return slice.call( this, 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 == null ?
// Return a 'clean' array
- Array.prototype.slice.call( this ) :
+ this.toArray() :
// Return just the object
- this[ num ];
+ ( num < 0 ? this.slice(num)[ 0 ] : this[ num ] );
},
// Take an array of elements and push it onto the stack
// Resetting the length to 0, then using the native Array push
// is a super-fast way to populate an object with array-like properties
this.length = 0;
- Array.prototype.push.apply( this, elems );
+ push.apply( this, elems );
return this;
},
// For internal use only.
// Behaves like an Array's method, not like a jQuery method.
- push: [].push,
+ push: push,
sort: [].sort,
splice: [].splice
};
// Recurse if we're merging object values
if ( deep && copy && typeof copy === "object" && !copy.nodeType ) {
- target[ name ] = jQuery.extend( deep,
- // Never move original objects, clone them
- src || ( copy.length != null ? [ ] : { } ), copy );
+ var clone;
+
+ if ( src ) {
+ clone = src;
+ } else if ( jQuery.isArray(copy) ) {
+ clone = [];
+ } else if ( jQuery.isObject(copy) ) {
+ clone = {};
+ } else {
+ clone = copy;
+ }
+
+ // Never move original objects, clone them
+ target[ name ] = jQuery.extend( deep, clone, copy );
// Don't bring in undefined values
} else if ( copy !== undefined ) {
return toString.call(obj) === "[object Array]";
},
+ isObject: function( obj ) {
+ return this.constructor.call(obj) === Object;
+ },
+
+ isEmptyObject: function( obj ) {
+ for ( var name in obj ) {
+ return false;
+ }
+ return true;
+ },
+
// check if an element is in a (or is an) XML document
isXMLDoc: function( elem ) {
- return elem.nodeType === 9 && elem.documentElement.nodeName !== "HTML" ||
- !!elem.ownerDocument && elem.ownerDocument.documentElement.nodeName !== "HTML";
+ return (elem.ownerDocument || elem).documentElement.nodeName !== "HTML";
},
// Evalulates a script in a global context
globalEval: function( data ) {
- if ( data && /\S/.test(data) ) {
+ if ( data && rnotwhite.test(data) ) {
// Inspired by code by Andrea Giammarchi
// http://webreflection.blogspot.com/2007/08/global-scope-evaluation-and-dom.html
var head = document.getElementsByTagName("head")[0] || document.documentElement,
script = document.createElement("script");
script.type = "text/javascript";
+
if ( jQuery.support.scriptEval ) {
script.appendChild( document.createTextNode( data ) );
} else {
// args is for internal usage only
each: function( object, callback, args ) {
- var name, i = 0, length = object.length;
+ var name, i = 0,
+ length = object.length,
+ isObj = length === undefined || jQuery.isFunction(object);
if ( args ) {
- if ( length === undefined ) {
+ if ( isObj ) {
for ( name in object ) {
if ( callback.apply( object[ name ], args ) === false ) {
break;
// A special, fast, case for the most common use of each
} else {
- if ( length === undefined ) {
+ if ( isObj ) {
for ( name in object ) {
if ( callback.call( object[ name ], name, object[ name ] ) === false ) {
break;
},
trim: function( text ) {
- return (text || "").replace( /^\s+|\s+$/g, "" );
+ return (text || "").replace( rtrim, "" );
},
makeArray: function( array ) {
// It's included for backwards compatibility and plugins,
// although they should work to migrate away.
browser: {
- version: (userAgent.match( /.+(?:rv|it|ra|ie)[\/: ]([\d.]+)/ ) || [0,'0'])[1],
+ 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 ),
git.asbjorn.biz / jquery.git / blobdiff