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Completely removed pushStack - and all code related to .find(..., fn). The stack is, also, non-destructive and maintained nicely using references.

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John Resig 2007-01-02 16:42:31 +00:00
parent ecf3351792
commit 07612d92da
1 changed files with 44 additions and 68 deletions
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112
src/jquery/jquery.js vendored
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@ -21,14 +21,14 @@ window.undefined = window.undefined;
* @cat Core
*/
var jQuery = function(a,c) {
// Shortcut for document ready
if ( a && typeof a == "function" && jQuery.fn.ready && !a.nodeType && a[0] == undefined ) // Safari reports typeof on DOM NodeLists as a function
return jQuery(document).ready(a);
// Make sure that a selection was provided
a = a || document;
// Shortcut for document ready
// Safari reports typeof on DOM NodeLists as a function
if ( typeof a == "function" && !a.nodeType && a[0] == undefined )
return jQuery(document)[ jQuery.fn.ready ? "ready" : "load" ]( a );
// Watch for when a jQuery object is passed as the selector
if ( a.jquery )
return jQuery( jQuery.makeArray( a ) );
@ -48,21 +48,12 @@ var jQuery = function(a,c) {
}
// Watch for when an array is passed in
this.set( a.constructor == Array || a.length && a != window && !a.nodeType && a[0] != undefined && a[0].nodeType ?
return this.setArray( a.constructor == Array || a.length && a != window && !a.nodeType && a[0] != undefined && a[0].nodeType ?
// Assume that it is an array of DOM Elements
jQuery.makeArray( a ) :
// Find the matching elements and save them for later
jQuery.find( a, c ) );
// See if an extra function was provided
var fn = arguments[ arguments.length - 1 ];
// If so, execute it in context
if ( fn && typeof fn == "function" )
this.each(fn);
return this;
};
// Map over the $ in case of overwrite
@ -230,6 +221,8 @@ jQuery.fn = jQuery.prototype = {
return this.length;
},
length: 0,
/**
* Access all matched elements. This serves as a backwards-compatible
* way of accessing all matched elements (other than the jQuery object
@ -268,7 +261,8 @@ jQuery.fn = jQuery.prototype = {
},
/**
* Set the jQuery object to an array of elements.
* Set the jQuery object to an array of elements, while maintaining
* the stack.
*
* @example $("img").set([ document.body ]);
* @result $("img").set() == [ document.body ]
@ -279,11 +273,29 @@ jQuery.fn = jQuery.prototype = {
* @param Elements elems An array of elements
* @cat Core
*/
set: function( array ) {
// Use a tricky hack to make the jQuery object
// look and feel like an array
set: function( a ) {
var ret = jQuery(this);
ret.prevObject = this;
return ret.setArray( a );
},
/**
* Set the jQuery object to an array of elements. This operation is
* completely destructive - be sure to use .set() if you wish to maintain
* the jQuery stack.
*
* @example $("img").setArray([ document.body ]);
* @result $("img").setArray() == [ document.body ]
*
* @private
* @name setArray
* @type jQuery
* @param Elements elems An array of elements
* @cat Core
*/
setArray: function( a ) {
this.length = 0;
[].push.apply( this, array );
[].push.apply( this, a );
return this;
},
@ -793,9 +805,7 @@ jQuery.fn = jQuery.prototype = {
* @cat DOM/Traversing
*/
end: function() {
if( !(this.stack && this.stack.length) )
return this;
return this.set( this.stack.pop() );
return this.prevObject || jQuery([]);
},
/**
@ -816,9 +826,9 @@ jQuery.fn = jQuery.prototype = {
* @cat DOM/Traversing
*/
find: function(t) {
return this.pushStack( jQuery.map( this, function(a){
return this.set( jQuery.map( this, function(a){
return jQuery.find(t,a);
}), arguments );
}) );
},
/**
@ -837,9 +847,9 @@ jQuery.fn = jQuery.prototype = {
* @cat DOM/Manipulation
*/
clone: function(deep) {
return this.pushStack( jQuery.map( this, function(a){
return this.set( jQuery.map( this, function(a){
return a.cloneNode( deep != undefined ? deep : true );
}), arguments );
}) );
},
/**
@ -900,7 +910,7 @@ jQuery.fn = jQuery.prototype = {
* @cat DOM/Traversing
*/
filter: function(t) {
return this.pushStack(
return this.set(
t.constructor == Array &&
jQuery.map(this,function(a){
for ( var i = 0, tl = t.length; i < tl; i++ )
@ -915,7 +925,7 @@ jQuery.fn = jQuery.prototype = {
typeof t == "function" &&
jQuery.grep( this, t ) ||
jQuery.filter(t,this).r, arguments );
jQuery.filter(t,this).r );
},
/**
@ -947,9 +957,9 @@ jQuery.fn = jQuery.prototype = {
* @cat DOM/Traversing
*/
not: function(t) {
return this.pushStack( typeof t == "string" ?
return this.set( typeof t == "string" ?
jQuery.filter(t,this,true).r :
jQuery.grep(this,function(a){ return a != t; }), arguments );
jQuery.grep(this,function(a){ return a != t; }) );
},
/**
@ -994,10 +1004,10 @@ jQuery.fn = jQuery.prototype = {
* @cat DOM/Traversing
*/
add: function(t) {
return this.pushStack( jQuery.merge(
return this.set( jQuery.merge(
this.get(), typeof t == "string" ?
jQuery.find(t) :
t.constructor == Array ? t : [t] ), arguments );
t.constructor == Array ? t : [t] ) );
},
/**
@ -1055,40 +1065,6 @@ jQuery.fn = jQuery.prototype = {
fn.apply( obj, [ clone ? a[i].cloneNode(true) : a[i] ] );
});
},
/**
*
*
* @private
* @name pushStack
* @param Array a
* @param Array args
* @type jQuery
* @cat Core
*/
pushStack: function(a,args) {
var fn = args && args.length > 1 && args[args.length-1];
var fn2 = args && args.length > 2 && args[args.length-2];
if ( fn && fn.constructor != Function ) fn = null;
if ( fn2 && fn2.constructor != Function ) fn2 = null;
if ( !fn ) {
if ( !this.stack ) this.stack = [];
this.stack.push( this.get() );
this.set( a );
} else {
var old = this.get();
this.set( a );
if ( fn2 && a.length || !fn2 )
this.each( fn2 || fn ).set( old );
else
this.set( old ).each( fn );
}
return this;
}
};
@ -1177,7 +1153,7 @@ jQuery.extend({
var ret = jQuery.map(this,n);
if ( a && typeof a == "string" )
ret = jQuery.filter(a,ret).r;
return this.pushStack( ret, arguments );
return this.set( ret );
};
});