[rhmessaging-commits] rhmessaging commits: r3294 - mgmt/trunk/wooly/resources.

[rhmessaging-commits at lists.jboss.org]

Author: eallen
Date: 2009-04-15 16:09:57 -0400 (Wed, 15 Apr 2009)
New Revision: 3294

Modified:
   mgmt/trunk/wooly/resources/wooly.js
Log:
Support for updating only part of a widget's html.
Don't preempt pending ajax requests each timer interval (Allows background updates to take longer than the update interval)

Modified: mgmt/trunk/wooly/resources/wooly.js
===================================================================
--- mgmt/trunk/wooly/resources/wooly.js	2009-04-15 19:26:33 UTC (rev 3293)
+++ mgmt/trunk/wooly/resources/wooly.js	2009-04-15 20:09:57 UTC (rev 3294)
@@ -210,6 +210,21 @@
         }
     }
 
+    function xmlGetElementById(parent, id) {
+       var children = parent.childNodes;
+       if (children) {
+           for (var i=0; i<children.length; i++) {
+               var child = children.item(i);
+               if (child.nodeType == 1) {
+                   if (id == child.getAttribute("id")) {
+                       return child;
+                   }
+               }
+           }
+       }
+       return null;
+    } 
+
     function copyNode(node) {
         switch (node.nodeType) {
             case 1:
@@ -306,6 +321,12 @@
                             newElem = newElem.nextSibling;
                         }
 
+                        var updateId = newElem.getAttribute("update");
+                        // only update a sub-block of html
+                        if (updateId) {
+                            oldElem = document.getElementById(updateId);
+                            newElem = xmlGetElementById(newElem, updateId);
+                        }
                         replaceNode(newElem, oldElem);
                     } else {
                         wooly.log("Element '" + id + "' not found");
@@ -354,9 +375,12 @@
             var req = this.getNewRequest();
 
             function fetch() {
-                req.open("get", url, true);
-                req.onreadystatechange = update;
-                req.send(null);
+                // don't preempt a pending request
+                if (req.readyState == 0 || req.readyState == 4) {
+                    req.open("get", url, true);
+                    req.onreadystatechange = update;
+                    req.send(null);
+                }
             }
 
             fetch();
@@ -661,6 +685,15 @@
             return wooly.session.branch(h);
         }
 
+        this.setHash = function (hash) {
+            var href = window.location.href;
+            var hashIndex = href.indexOf("#");
+            if (hashIndex > 0) {
+                href = href.substring(0, hashIndex);
+            }
+            window.location.replace(href + "#" + hash.marshal());
+        }
+
         /* convert string query into cumin session object */
         function Branch (s) {