https://diplomaticacademy.am/js/feed_menu.js

1
2
3function FeedMenu( sLinkSelector, sClass ){
4        
5    var jqoFeedMenu = $('<span class="feed_menu"><select></select></span>');
6    var jqoSelect = jqoFeedMenu.find('select');
7    
8    if( sClass ){
9    	jqoFeedMenu.addClass( sClass );
10    }
11    
12    //feed links
13    var defaults = { links: sLinkSelector || 'link[type*=rss],link[type*=atom]' };
14    
15    /*
16    *
17    *	Function build	
18    *	
19    *	@description	
20    *
21    *	This function builds the feed menu by ripping RSS|Atom feed
22    *	content and creating links for those.						
23    *							
24    */
25    this.build = function( mFeedLinks ) {
26    	
27    	mFeedLinks = mFeedLinks || defaults.links;
28    	
29    	var oAtom 	= $('<optgroup label="Atom Feeds"></optgroup>');
30    	var oRSS 	= $('<optgroup label="RSS Feeds"></optgroup>'); 
31    	var oAll    = [];
32    	
33    	$(mFeedLinks).each(
34    		function(){
35    			var sFeedType = $(this).is('link[type*=rss]')? "rss" : $(this).is('link[type*=atom]')?"atom":null;
36    			var sFeedTitle= $(this).is('link')? "Subscribe to '" + $(this).attr('title') + "'" : $(this).attr('title');
37    			
38    			var oOption = $('<option></option>')
39    					.html( sFeedTitle )
40    					.attr('value', $(this).attr('href') )
41    					.click(
42    						function(){
43    							document.location.href = $(this).attr('value');
44    							jqoFeedMenu.removeClass('feed_menu_focused');
45    						}
46    					);
47    			
48    			if( sFeedType == 'rss' ) {
49    				oRSS.append(oOption);
50    			} else if ( sFeedType == 'atom' ) {
51    				oAtom.append(oOption);
52    			}
53    			oAll.push(oOption);
54    			
55    		}
56    	);
57    	
58    	//if there were RSS or Atom feeds found, append them
59    	if ( oRSS.find('option').length > 1 ) {
60    		if( $.browser.opera){
61    			jqoSelect.append( oRSS.find('option') );
62    		}else{
63    			jqoSelect.append( oRSS );
64    		}
65    	}	
66    	if ( oAtom.find('option').length > 1 ) {
67    		if( $.browser.opera){
68    			jqoSelect.append( oAtom.find('option') );
69    		}else{
70    			jqoSelect.append( oAtom );
71    		}
72    	} else {
73    		for( opt in oAll){
74    			jqoSelect.append( oAll[opt] );
75    		}
76    	}
77    	
78    	//setup the event handlers
79    	/*jqoFeedMenu
80    		.click(
81    			function(){
82    				$('.feed_menu select')
83    					.not($(this).find('select'))
84    					.blur();
85    			}
86    		);
87    		*/
88    	jqoSelect
89    		.blur( 	function(){ 
90    					if( $.browser.msie || $.browser.safari || $.browser.opera ){
91    						this.selectedIndex = -1;
92    					
93    					}
94    					jqoFeedMenu.removeClass('open'); 
95    				} 
96    		)
97    		.focus( function(){
98    					if( $.browser.msie || $.browser.safari || $.browser.opera ){
99    						this.selectedIndex = -1;
100    					
101    					}
102    					jqoFeedMenu.addClass('open'); 
103    				} 
104    		)
105    		.change(
106    			function(){
107    				if( $.browser.msie || $.browser.safari || $.browser.opera ){
108 		   				var i = this.selectedIndex;
109 		   				this.selectedIndex = -1;
110 		   				if ( i > -1 ) {
111 		   					var o = this.options[i];
112 		   					this.selectedIndex = -1;
113 		   					document.location.href = $(o).attr('value');
114 		   				}
115    				}
116    			}
117    		)
118    		.get(0).selectedIndex=-1;
119    }
120    
121    /*
122    *
123    *	Function feedMenu.write	
124    *	
125    *	@description	
126    *
127    *	This function takes a $ selector and appends the 
128    *	feed menu in that DOM node. If no nodes are found, it
129    *	is not written.  If no selector was specified, this
130    *	function automatically places the feeds menu as the
131    *	last child of the body.
132    *	
133    *	@param	mTarget	A mixed type variable: string or $ or null	
134    *
135    */
136    this.write = function( mTarget ) {
137    	
138    	//target for the menu is defaulted to the page body
139    	mTarget = mTarget || 'body';
140    	
141    	//build the feed menu options
142    	this.build();
143    	
144    	//shove the feed menu in the target item
145    	$(mTarget).append( jqoFeedMenu );
146    	
147    }
148
149}