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MINOR Performance improvement and removal of duplicate code in jQuery.ondemand

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This commit is contained in:
Ingo Schommer 2012-06-06 11:50:17 +02:00
parent b3164eb2a9
commit 22de5c6597
1 changed files with 8 additions and 22 deletions
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30
javascript/jquery-ondemand/jquery.ondemand.js
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@ -24,41 +24,27 @@
// loaded files list - to protect against loading existed file again (by PGA) // loaded files list - to protect against loading existed file again (by PGA)
_ondemand_loaded_list : null, _ondemand_loaded_list : null,
// Added by SRM: Initialise the loaded_list with the scripts included on first load
initialiseItemLoadedList : function() {
if(this.loaded_list == null) {
$this = this;
$this.loaded_list = {};
$('script').each(function() {
if($(this).attr('src')) $this.loaded_list[ $(this).attr('src') ] = 1;
});
$('link[rel="stylesheet"]').each(function() {
if($(this).attr('href')) $this.loaded_list[ $(this).attr('href') ] = 1;
});
}
},
/** /**
* Returns true if the given CSS or JS script has already been loaded * Returns true if the given CSS or JS script has already been loaded
*/ */
isItemLoaded : function(scriptUrl) { isItemLoaded : function(scriptUrl) {
var self = this; var self = this, src;
if(this._ondemand_loaded_list === null) {
if(this._ondemand_loaded_list == null) {
this._ondemand_loaded_list = {}; this._ondemand_loaded_list = {};
$('script').each(function() { $('script').each(function() {
if($(this).attr('src')) self._ondemand_loaded_list[ $(this).attr('src') ] = 1; src = $(this).attr('src');
if(src) self._ondemand_loaded_list[src] = 1;
}); });
$('link[rel="stylesheet"]').each(function() { $('link[rel="stylesheet"]').each(function() {
if($(this).attr('href')) self._ondemand_loaded_list[ $(this).attr('href') ] = 1; src = $(this).attr('href');
if(src) self._ondemand_loaded_list[src] = 1;
}); });
} }
return (this._ondemand_loaded_list[decodePath(scriptUrl)] !== undefined);
return (this._ondemand_loaded_list[decodePath(scriptUrl)] != undefined);
}, },
requireCss : function(styleUrl, media){ requireCss : function(styleUrl, media){
if(media == null) media = 'all'; if(media === null) media = 'all';
// Don't double up on loading scripts // Don't double up on loading scripts
if($.isItemLoaded(styleUrl)) return; if($.isItemLoaded(styleUrl)) return;