[Jifty-commit] r2096 - in jifty/trunk: share/web/static/js

[jifty-commit at lists.jifty.org]

Author: jesse
Date: Mon Oct 30 23:49:24 2006
New Revision: 2096

Modified:
   jifty/trunk/   (props changed)
   jifty/trunk/share/web/static/js/jifty_subs.js

Log:
 r29628 at pinglin:  jesse | 2006-10-30 23:44:41 -0500
 * Switched jifty_subs to a "longpoll" based transport.


Modified: jifty/trunk/share/web/static/js/jifty_subs.js
==============================================================================
--- jifty/trunk/share/web/static/js/jifty_subs.js	(original)
+++ jifty/trunk/share/web/static/js/jifty_subs.js	Mon Oct 30 23:49:24 2006
@@ -3,18 +3,20 @@
 {
 
     /* onPushHandler is called for each new pushed element.
-       (currently, this is always a <pushfrag>).
-       This routine takes the pushed element and extracts render mode (Before, After, Replace, Delete)
-       , region name and other rendering information. Then it calls jifty's "apply_fragment_updates to the
-       item inside the <pushfrag> (the actual fragment);
+       (currently, this is always a <pushfrag>).  This routine takes
+       the pushed element and extracts render mode (Before, After,
+       Replace, Delete) , region name and other rendering information.
+       Then it calls jifty's "apply_fragment_updates to the item
+       inside the <pushfrag> (the actual fragment);
 
-        f is the specification for the new fragment. (region, path, mode and other infomration extracted from the fragment)
+	f is the specification for the new fragment. (region, path,
+	mode and other infomration extracted from the fragment)
 
        */
 
     var onPushHandler = function(t) {
-    	var mode = t.attributes['mode'].nodeValue;
-    	var rid =  t.firstChild.attributes['id'].nodeValue;
+    	var mode = t.getAttribute('mode');
+    	var rid =  t.firstChild.getAttribute('id');
     	var f = { region: rid, path: '', mode: mode };
     	f = prepare_element_for_update(f);
     	apply_fragment_updates(t.firstChild, f);
@@ -23,23 +25,47 @@
 
 
     
-    /* This function constructs a new Jifty.Subs object and sets up a callback with HTTP.Push to run our onPushHandler each time a new element is added to the hidden iframe's body. 
+    /* This function constructs a new Jifty.Subs object and sets
+    up a callback with HTTP.Push to run our onPushHandler each time
+    a new element is added to the hidden iframe's body.
 
-    We could instead say "sets up our transport. every time the transport gets a new item, call onPushHandler"
-    */
+    We could instead say "sets up our transport. every time the
+    transport gets a new item, call onPushHandler" */
 
-    /* Jifty.Subs.start() will connect to the transport */
+    /* Jifty.Subs.start() will connect to the iframe transport */
 
     Jifty.Subs = function(args) {
     	var window_id = args.window_id; // XXX: not yet
     	var uri = args.uri;
     	if (!uri)
     	    uri = "/=/subs_infinite_iframe?";
-    	var push = new HTTP.Push({ "uri": uri, interval : 100,
-    				       "onPush" : onPushHandler});
+    	//var push = new HTTP.Push({ "uri": uri, interval : 100, "onPush" : onPushHandler});
     	
     	this.start = function() {
-    	    push.start();
-    	};
+    	    //push.start();
+
+	    new Ajax.PeriodicalUpdater({},'/=/subs_infinite_iframe?forever=0',
+	    {
+	        'decay': 1, 'frequency': 0,
+	        'asynchronous':true, 
+	        'evalScripts':false,
+	        'method': 'get',
+	        'onSuccess': onSuccess,
+	        'onFailure': onFailure
+	    });
+	    	};
+    }
+
+
+    function onSuccess(req, json) {
+        var container = document.createElement('div');
+        container.innerHTML = req.responseText;
+        var frags = container.getElementsByTagName('pushfrag');
+        for(var i = 0 ; i < frags.length; i++) {
+            onPushHandler(frags[i]);
+        }
     }
+    function onFailure(req) { }
+
 }
+