aboutsummaryrefslogtreecommitdiffstats
path: root/src/core.js
diff options
context:
space:
mode:
Diffstat (limited to 'src/core.js')
-rw-r--r--src/core.js375
1 files changed, 124 insertions, 251 deletions
diff --git a/src/core.js b/src/core.js
index 0bf0cb4b7..fa15cffc0 100644
--- a/src/core.js
+++ b/src/core.js
@@ -17,22 +17,15 @@ var jQuery = function( selector, context ) {
// A simple way to check for HTML strings or ID strings
// (both of which we optimize for)
- quickExpr = /^(?:[^<]*(<[\w\W]+>)[^>]*$|#([\w\-]+)$)/,
-
- // Is it a simple selector
- isSimple = /^.[^:#\[\.,]*$/,
+ quickExpr = /^(?:[^<]*(<[\w\W]+>)[^>]*$|#([\w\-]*)$)/,
// Check if a string has a non-whitespace character in it
rnotwhite = /\S/,
- rwhite = /\s/,
// Used for trimming whitespace
trimLeft = /^\s+/,
trimRight = /\s+$/,
- // Check for non-word characters
- rnonword = /\W/,
-
// Check for digits
rdigit = /\d/,
@@ -57,9 +50,6 @@ var jQuery = function( selector, context ) {
// For matching the engine and version of the browser
browserMatch,
- // Has the ready events already been bound?
- readyBound = false,
-
// The deferred used on DOM ready
readyList,
@@ -98,7 +88,7 @@ jQuery.fn = jQuery.prototype = {
if ( selector === "body" && !context && document.body ) {
this.context = document;
this[0] = document.body;
- this.selector = "body";
+ this.selector = selector;
this.length = 1;
return this;
}
@@ -106,7 +96,12 @@ jQuery.fn = jQuery.prototype = {
// Handle HTML strings
if ( typeof selector === "string" ) {
// Are we dealing with HTML string or an ID?
- match = quickExpr.exec( selector );
+ if ( selector.length > 1024 ) {
+ // Assume very large strings are HTML and skip the regex check
+ match = [ null, selector, null ];
+ } else {
+ match = quickExpr.exec( selector );
+ }
// Verify a match, and that no context was specified for #id
if ( match && (match[1] || !context) ) {
@@ -131,7 +126,7 @@ jQuery.fn = jQuery.prototype = {
} else {
ret = jQuery.buildFragment( [ match[1] ], [ doc ] );
- selector = (ret.cacheable ? jQuery(ret.fragment).clone()[0] : ret.fragment).childNodes;
+ selector = (ret.cacheable ? jQuery.clone(ret.fragment) : ret.fragment).childNodes;
}
return jQuery.merge( this, selector );
@@ -159,13 +154,6 @@ jQuery.fn = jQuery.prototype = {
return this;
}
- // HANDLE: $("TAG")
- } else if ( !context && !rnonword.test( selector ) ) {
- this.selector = selector;
- this.context = document;
- selector = document.getElementsByTagName( selector );
- return jQuery.merge( this, selector );
-
// HANDLE: $(expr, $(...))
} else if ( !context || context.jquery ) {
return (context || rootjQuery).find( selector );
@@ -255,12 +243,14 @@ jQuery.fn = jQuery.prototype = {
return jQuery.each( this, callback, args );
},
- ready: function() {
+ ready: function( fn ) {
// Attach the listeners
jQuery.bindReady();
- // Change ready & apply
- return ( jQuery.fn.ready = readyList.done ).apply( this , arguments );
+ // Add the callback
+ readyList.done( fn );
+
+ return this;
},
eq: function( i ) {
@@ -303,7 +293,7 @@ jQuery.fn = jQuery.prototype = {
jQuery.fn.init.prototype = jQuery.fn;
jQuery.extend = jQuery.fn.extend = function() {
- var options, name, src, copy, copyIsArray, clone,
+ var options, name, src, copy, copyIsArray, clone,
target = arguments[0] || {},
i = 1,
length = arguments.length,
@@ -384,15 +374,19 @@ jQuery.extend({
// the ready event fires. See #6781
readyWait: 1,
- // Handle when the DOM is ready
- ready: function( wait ) {
- // A third-party is pushing the ready event forwards
- if ( wait === true ) {
- jQuery.readyWait--;
+ // Hold (or release) the ready event
+ holdReady: function( hold ) {
+ if ( hold ) {
+ jQuery.readyWait++;
+ } else {
+ jQuery.ready( true );
}
+ },
- // Make sure that the DOM is not already loaded
- if ( !jQuery.readyWait || (wait !== true && !jQuery.isReady) ) {
+ // Handle when the DOM is ready
+ ready: function( wait ) {
+ // Either a released hold or an DOMready/load event and not yet ready
+ if ( (wait === true && !--jQuery.readyWait) || (wait !== true && !jQuery.isReady) ) {
// Make sure body exists, at least, in case IE gets a little overzealous (ticket #5443).
if ( !document.body ) {
return setTimeout( jQuery.ready, 1 );
@@ -407,7 +401,7 @@ jQuery.extend({
}
// If there are functions bound, to execute
- readyList.fire( document , [ jQuery ] );
+ readyList.resolveWith( document, [ jQuery ] );
// Trigger any bound ready events
if ( jQuery.fn.trigger ) {
@@ -417,11 +411,11 @@ jQuery.extend({
},
bindReady: function() {
- if ( readyBound ) {
+ if ( readyList ) {
return;
}
- readyBound = true;
+ readyList = jQuery._Deferred();
// Catch cases where $(document).ready() is called after the
// browser event has already occurred.
@@ -530,20 +524,21 @@ jQuery.extend({
// Make sure leading/trailing whitespace is removed (IE can't handle it)
data = jQuery.trim( data );
+ // Attempt to parse using the native JSON parser first
+ if ( window.JSON && window.JSON.parse ) {
+ return window.JSON.parse( data );
+ }
+
// Make sure the incoming data is actual JSON
// Logic borrowed from http://json.org/json2.js
- if ( rvalidchars.test(data.replace(rvalidescape, "@")
- .replace(rvalidtokens, "]")
- .replace(rvalidbraces, "")) ) {
+ if ( rvalidchars.test( data.replace( rvalidescape, "@" )
+ .replace( rvalidtokens, "]" )
+ .replace( rvalidbraces, "")) ) {
- // Try to use the native JSON parser first
- return window.JSON && window.JSON.parse ?
- window.JSON.parse( data ) :
- (new Function("return " + data))();
+ return (new Function( "return " + data ))();
- } else {
- jQuery.error( "Invalid JSON: " + data );
}
+ jQuery.error( "Invalid JSON: " + data );
},
// Cross-browser xml parsing
@@ -570,26 +565,17 @@ jQuery.extend({
noop: function() {},
- // Evalulates a script in a global context
+ // Evaluates a script in a global context
+ // Workarounds based on findings by Jim Driscoll
+ // http://weblogs.java.net/blog/driscoll/archive/2009/09/08/eval-javascript-global-context
globalEval: function( 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 {
- script.text = data;
- }
-
- // 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 );
+ if ( data && rnotwhite.test( data ) ) {
+ // We use execScript on Internet Explorer
+ // We use an anonymous function so that context is window
+ // rather than jQuery in Firefox
+ ( window.execScript || function( data ) {
+ window[ "eval" ].call( window, data );
+ } )( data );
}
},
@@ -627,8 +613,11 @@ jQuery.extend({
}
}
} else {
- for ( var value = object[0];
- i < length && callback.call( value, i, value ) !== false; value = object[++i] ) {}
+ for ( ; i < length; ) {
+ if ( callback.call( object[ i ], i, object[ i++ ] ) === false ) {
+ break;
+ }
+ }
}
}
@@ -672,8 +661,9 @@ jQuery.extend({
},
inArray: function( elem, array ) {
- if ( array.indexOf ) {
- return array.indexOf( elem );
+
+ if ( indexOf ) {
+ return indexOf.call( array, elem );
}
for ( var i = 0, length = array.length; i < length; i++ ) {
@@ -723,15 +713,30 @@ jQuery.extend({
// arg is for internal usage only
map: function( elems, callback, arg ) {
- var ret = [], value;
+ var value, key, ret = [],
+ i = 0,
+ length = elems.length,
+ // jquery objects are treated as arrays
+ isArray = elems instanceof jQuery || length !== undefined && typeof length === "number" && ( ( length > 0 && elems[ 0 ] && elems[ length -1 ] ) || jQuery.isArray( elems ) ) ;
// 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, arg );
+ if ( isArray ) {
+ for ( ; i < length; i++ ) {
+ value = callback( elems[ i ], i, arg );
- if ( value != null ) {
- ret[ ret.length ] = value;
+ if ( value != null ) {
+ ret[ ret.length ] = value;
+ }
+ }
+
+ // Go thorugh every key on the object,
+ } else {
+ for ( key in elems ) {
+ value = callback( elems[ key ], key, arg );
+
+ if ( value != null ) {
+ ret[ ret.length ] = value;
+ }
}
}
@@ -742,31 +747,52 @@ jQuery.extend({
// 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;
+ // Bind a function to a context, optionally partially applying any
+ // arguments.
+ proxy: function( fn, context ) {
+ var args, proxy;
- } else if ( proxy && !jQuery.isFunction( proxy ) ) {
- thisObject = proxy;
- proxy = undefined;
- }
+ // XXX BACKCOMPAT: Support old string method.
+ if ( typeof context === "string" ) {
+ fn = fn[ context ];
+ context = arguments[0];
}
- if ( !proxy && fn ) {
- proxy = function() {
- return fn.apply( thisObject || this, arguments );
- };
+ // Quick check to determine if target is callable, in the spec
+ // this throws a TypeError, but we will just return undefined.
+ if ( ! jQuery.isFunction( fn ) ) {
+ return undefined;
}
- // 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++;
+ if ( jQuery.support.nativeBind ) {
+ // Native bind
+ args = slice.call( arguments, 1 );
+ if ( args.length ) {
+ proxy = Function.prototype.bind.apply( fn, args );
+ } else {
+ proxy = fn.bind( context );
+ }
+ } else {
+ // Simulated bind
+ args = slice.call( arguments, 2 );
+ if ( args.length ) {
+ proxy = function() {
+ return arguments.length ?
+ fn.apply( context, args.concat( slice.call( arguments ) ) ) :
+ fn.apply( context, args );
+ };
+ } else {
+ proxy = function() {
+ return arguments.length ?
+ fn.apply( context, arguments ) :
+ fn.call( context );
+ };
+ }
}
- // So proxy can be declared as an argument
+ // Set the guid of unique handler to the same of original handler, so it can be removed
+ proxy.guid = fn.guid = fn.guid || proxy.guid || jQuery.guid++;
+
return proxy;
},
@@ -803,151 +829,6 @@ jQuery.extend({
return (new Date()).getTime();
},
- // Create a simple deferred (one callbacks list)
- _Deferred: function() {
-
- var // callbacks list
- callbacks = [],
- // stored [ context , args ]
- fired,
- // to avoid firing when already doing so
- firing,
- // flag to know if the deferred has been cancelled
- cancelled,
- // the deferred itself
- deferred = {
-
- // done( f1, f2, ...)
- done: function () {
-
- if ( ! cancelled ) {
-
- var args = arguments,
- i,
- length,
- elem,
- type,
- _fired;
-
- if ( fired ) {
- _fired = fired;
- fired = 0;
- }
-
- for ( i = 0, length = args.length ; i < length ; i++ ) {
- elem = args[ i ];
- type = jQuery.type( elem );
- if ( type === "array" ) {
- deferred.done.apply( deferred , elem );
- } else if ( type === "function" ) {
- callbacks.push( elem );
- }
- }
-
- if ( _fired ) {
- deferred.fire( _fired[ 0 ] , _fired[ 1 ] );
- }
- }
-
- return this;
- },
-
- // resolve with given context and args
- fire: function( context , args ) {
- if ( ! cancelled && ! fired && ! firing ) {
-
- firing = 1;
-
- try {
- while( callbacks[ 0 ] ) {
- callbacks.shift().apply( context , args );
- }
- }
- finally {
- fired = [ context , args ];
- firing = 0;
- }
- }
- return this;
- },
-
- // resolve with this as context and given arguments
- resolve: function() {
- deferred.fire( jQuery.isFunction( this.promise ) ? this.promise() : this , arguments );
- return this;
- },
-
- // Has this deferred been resolved?
- isResolved: function() {
- return !!( firing || fired );
- },
-
- // Cancel
- cancel: function() {
- cancelled = 1;
- callbacks = [];
- return this;
- }
- };
-
- return deferred;
- },
-
- // Full fledged deferred (two callbacks list)
- // Typical success/error system
- Deferred: function( func ) {
-
- var deferred = jQuery._Deferred(),
- failDeferred = jQuery._Deferred();
-
- // Add errorDeferred methods and redefine cancel
- jQuery.extend( deferred , {
-
- then: function( doneCallbacks , failCallbacks ) {
- deferred.done( doneCallbacks ).fail( failCallbacks );
- return this;
- },
- fail: failDeferred.done,
- fireReject: failDeferred.fire,
- reject: failDeferred.resolve,
- isRejected: failDeferred.isResolved,
- // Get a promise for this deferred
- // If obj is provided, the promise aspect is added to the object
- promise: function( obj ) {
- obj = obj || {};
- jQuery.each( "then done fail isResolved isRejected".split( " " ) , function( _ , method ) {
- obj[ method ] = deferred[ method ];
- });
- obj.promise = function() {
- return obj;
- };
- return obj;
- }
-
- } );
-
- // Make sure only one callback list will be used
- deferred.then( failDeferred.cancel , deferred.cancel );
-
- // Unexpose cancel
- delete deferred.cancel;
-
- // Call given func if any
- if ( func ) {
- func.call( deferred , deferred );
- }
-
- return deferred;
- },
-
- // Deferred helper
- when: function( object ) {
- object = object && jQuery.isFunction( object.promise ) ?
- object :
- jQuery.Deferred().resolve( object );
- return object.promise();
- },
-
// Use of jQuery.browser is frowned upon.
// More details: http://docs.jquery.com/Utilities/jQuery.browser
uaMatch: function( ua ) {
@@ -962,18 +843,20 @@ jQuery.extend({
return { browser: match[1] || "", version: match[2] || "0" };
},
- subclass: function(){
+ sub: function() {
function jQuerySubclass( selector, context ) {
return new jQuerySubclass.fn.init( selector, context );
}
+ jQuery.extend( true, jQuerySubclass, this );
jQuerySubclass.superclass = this;
jQuerySubclass.fn = jQuerySubclass.prototype = this();
jQuerySubclass.fn.constructor = jQuerySubclass;
jQuerySubclass.subclass = this.subclass;
jQuerySubclass.fn.init = function init( selector, context ) {
- if (context && context instanceof jQuery && !(context instanceof jQuerySubclass)){
+ if ( context && context instanceof jQuery && !(context instanceof jQuerySubclass) ) {
context = jQuerySubclass(context);
}
+
return jQuery.fn.init.call( this, selector, context, rootjQuerySubclass );
};
jQuerySubclass.fn.init.prototype = jQuerySubclass.fn;
@@ -984,9 +867,6 @@ jQuery.extend({
browser: {}
});
-// Create readyList deferred
-readyList = jQuery._Deferred();
-
// Populate the class2type map
jQuery.each("Boolean Number String Function Array Date RegExp Object".split(" "), function(i, name) {
class2type[ "[object " + name + "]" ] = name.toLowerCase();
@@ -1003,15 +883,8 @@ if ( jQuery.browser.webkit ) {
jQuery.browser.safari = true;
}
-if ( indexOf ) {
- jQuery.inArray = function( elem, array ) {
- return indexOf.call( array, elem );
- };
-}
-
-// Verify that \s matches non-breaking spaces
-// (IE fails on this test)
-if ( !rwhite.test( "\xA0" ) ) {
+// IE doesn't match non-breaking spaces with \s
+if ( rnotwhite.test( "\xA0" ) ) {
trimLeft = /^[\s\xA0]+/;
trimRight = /[\s\xA0]+$/;
}
@@ -1056,6 +929,6 @@ function doScrollCheck() {
}
// Expose jQuery to the global object
-return (window.jQuery = window.$ = jQuery);
+return jQuery;
})();