// A central reference to the root jQuery(document)
rootjQuery,
- // 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 = /^.[^:#\[\.,]*$/,
+ // A simple way to check for HTML strings
+ quickExpr = /^[^<]*(<[\w\W]+>)[^>]*$/,
// Check if a string has a non-whitespace character in it
rnotwhite = /\S/,
- rwhite = /\s/,
// Used for trimming whitespace
trimLeft = /^\s+/,
// The deferred used on DOM ready
readyList,
+ // Promise methods
+ promiseMethods = "then done fail isResolved isRejected promise".split( " " ),
+
// The ready event handler
DOMContentLoaded,
return this;
}
- // The body element only exists once, optimize finding it
- if ( selector === "body" && !context && document.body ) {
- this.context = document;
- this[0] = document.body;
- this.selector = "body";
- this.length = 1;
- return this;
- }
-
// Handle HTML strings
if ( typeof selector === "string" ) {
- // Are we dealing with HTML string or an ID?
- match = quickExpr.exec( selector );
+ // Are we dealing with HTML string
+ if ( (match = quickExpr.exec( selector )) ) {
+ context = context instanceof jQuery ? context[0] : context;
+ doc = (context ? context.ownerDocument || context : document);
- // Verify a match, and that no context was specified for #id
- if ( match && (match[1] || !context) ) {
+ // If a single string is passed in and it's a single tag
+ // just do a createElement and skip the rest
+ ret = rsingleTag.exec( selector );
- // HANDLE: $(html) -> $(array)
- if ( match[1] ) {
- context = context instanceof jQuery ? context[0] : context;
- doc = (context ? context.ownerDocument || context : document);
-
- // If a single string is passed in and it's a single tag
- // just do a createElement and skip the rest
- ret = rsingleTag.exec( selector );
-
- if ( ret ) {
- if ( jQuery.isPlainObject( context ) ) {
- selector = [ document.createElement( ret[1] ) ];
- jQuery.fn.attr.call( selector, context, true );
-
- } else {
- selector = [ doc.createElement( ret[1] ) ];
- }
+ if ( ret ) {
+ if ( jQuery.isPlainObject( context ) ) {
+ selector = [ document.createElement( ret[1] ) ];
+ jQuery.fn.attr.call( selector, context, true );
} else {
- ret = jQuery.buildFragment( [ match[1] ], [ doc ] );
- selector = (ret.cacheable ? jQuery(ret.fragment).clone()[0] : ret.fragment).childNodes;
+ selector = [ doc.createElement( ret[1] ) ];
}
- return jQuery.merge( this, selector );
-
- // HANDLE: $("#id")
} else {
- elem = document.getElementById( match[2] );
-
- // Check parentNode to catch when Blackberry 4.6 returns
- // nodes that are no longer in the document #6963
- if ( elem && elem.parentNode ) {
- // Handle the case where IE and Opera return items
- // by name instead of ID
- if ( elem.id !== match[2] ) {
- return rootjQuery.find( selector );
- }
-
- // Otherwise, we inject the element directly into the jQuery object
- this.length = 1;
- this[0] = elem;
- }
-
- this.context = document;
- this.selector = selector;
- return this;
+ ret = jQuery.buildFragment( [ match[1] ], [ doc ] );
+ selector = (ret.cacheable ? jQuery(ret.fragment).clone()[0] : ret.fragment).childNodes;
}
- // 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, $(...))
script.type = "text/javascript";
- if ( jQuery.support.scriptEval ) {
+ if ( jQuery.support.scriptEval() ) {
script.appendChild( document.createTextNode( data ) );
} else {
script.text = data;
Deferred: function( func ) {
var deferred = jQuery._Deferred(),
- failDeferred = jQuery._Deferred();
+ failDeferred = jQuery._Deferred(),
+ promise;
- // Add errorDeferred methods and redefine cancel
+ // Add errorDeferred methods, then and promise
jQuery.extend( deferred , {
then: function( doneCallbacks , failCallbacks ) {
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;
- };
+ // (i is used internally)
+ promise: function( obj , i ) {
+ if ( obj == null ) {
+ if ( promise ) {
+ return promise;
+ }
+ promise = obj = {};
+ }
+ i = promiseMethods.length;
+ while( i-- ) {
+ obj[ promiseMethods[ i ] ] = deferred[ promiseMethods[ i ] ];
+ }
return obj;
}
// Deferred helper
when: function( object ) {
- object = object && jQuery.isFunction( object.promise ) ?
- object :
- jQuery.Deferred().resolve( object );
- return object.promise();
+ var args = arguments,
+ length = args.length,
+ deferred = length <= 1 && object && jQuery.isFunction( object.promise ) ?
+ object :
+ jQuery.Deferred(),
+ promise = deferred.promise(),
+ resolveArray;
+
+ if ( length > 1 ) {
+ resolveArray = new Array( length );
+ jQuery.each( args, function( index, element, args ) {
+ jQuery.when( element ).done( function( value ) {
+ args = arguments;
+ resolveArray[ index ] = args.length > 1 ? slice.call( args , 0 ) : value;
+ if( ! --length ) {
+ deferred.fire( promise, resolveArray );
+ }
+ }).fail( function() {
+ deferred.fireReject( promise, arguments );
+ });
+ return !deferred.isRejected();
+ });
+ } else if ( deferred !== object ) {
+ deferred.resolve( object );
+ }
+ return promise;
},
// Use of jQuery.browser is frowned upon.
};
}
-// 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]+$/;
}