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Added a bunch of improved support for DOM Element arrays - along with a new $.A( ... ) function.

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This commit is contained in:
John Resig 2006-07-06 05:16:39 +00:00
parent 9b6df19cc4
commit b2d15586bd
1 changed files with 49 additions and 23 deletions
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72
jquery/jquery.js vendored
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@ -12,50 +12,60 @@
// Global undefined variable
window.undefined = window.undefined;
// Map over the $ in case of overwrite
if ( $ ) var _$ = $;
/**
* Create a new jQuery Object
* @constructor
*/
var $ = jQuery = function(a,c) {
function jQuery(a,c) {
/*
* Handle support for overriding other $() functions. Way too many libraries
* provide this function to simply ignore it and overwrite it.
*/
* Handle support for overriding other $() functions. Way too many libraries
* provide this function to simply ignore it and overwrite it.
*/
// Check to see if this is a possible collision case
if ( _$ && !c && ( a.constructor == String &&
if ( jQuery._$ && !c && a.constructor == String &&
// Make sure that the expression is a colliding one
!/[^a-zA-Z0-9_-]/.test(a) &&
// and that there are no elements that match it
// (this is the one truly ambiguous case)
!document.getElementsByTagName(a).length ) ||
// Watch for an array being passed in (Prototype 1.5)
a.constructor == Array )
!document.getElementsByTagName(a).length )
// Use the default method, in case it works some voodoo
return _$( a );
return jQuery._$( a );
// Watch for when a jQuery object is passed in as an arg
if ( a && a.jquery )
// Make sure t hat a selection was provided
a = a || jQuery.context || document;
// Watch for when a jQuery object is passed as the selector
if ( a.jquery )
return a;
// Watch for when a jQuery object is passed at the context
if ( c && c.jquery )
return $(c.get()).find(a);
// If the context is global, return a new object
if ( window == this )
return new jQuery(a,c);
// Find the matching elements and save them for later
this.cur = jQuery.Select(
a || jQuery.context || document,
c && c.jquery && c.get(0) || c
);
// Watch for when an array is passed in
if ( a.constructor == Array )
// Assume that it's an array of DOM Elements
this.cur = a;
else
// Find the matching elements and save them for later
this.cur = jQuery.Select( a, c );
}
// Map over the $ in case of overwrite
if ( $ )
jQuery._$ = $;
// Map the jQuery namespace to the '$' one
var $ = jQuery;
jQuery.fn = jQuery.prototype = {
/**
* The current SVN version of jQuery.
@ -353,6 +363,22 @@ jQuery.fn = jQuery.prototype = {
}
};
/**
* Similar to the Prototype $A() function, only it allows you to
* forcefully pass array-like structures into $().
*/
jQuery.A = function(a){
// Create a temporary, clean, array
var r = [];
// and copy the old array contents over to it
for ( var i = 0; i < a.length; i++ )
r.push( a[i] );
// Return the sane jQuery object
return $(r);
};
jQuery.className = {
add: function(o,c){
if (jQuery.hasWord(o,c)) return;
@ -525,8 +551,8 @@ jQuery.token = [
jQuery.Select = function( t, context ) {
context = context || jQuery.context || document;
if ( t.constructor != String )
return t.constructor == Array ? t : [t];
if ( t.constructor != String ) return [t];
if ( !t.indexOf("//") ) {
context = context.documentElement;