1 files changed, 148 insertions, 0 deletions
diff --git a/dom/xul/templates/tests/chrome/test_bug441785.xul b/dom/xul/templates/tests/chrome/test_bug441785.xul
new file mode 100644
index 000000000..7be6df198
--- /dev/null
+++ b/dom/xul/templates/tests/chrome/test_bug441785.xul
@@ -0,0 +1,148 @@
+<?xml version="1.0" ?>
+<?xml-stylesheet href="chrome://global/skin" type="text/css"?>
+<?xml-stylesheet href="chrome://mochikit/content/tests/SimpleTest/test.css" type="text/css"?>
+
+<window xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul">
+   <tree flex="20" id="t" ref="urn:data:row" datasources="rdf:null" seltype="single">
+     <treecols> 
+      <treecol flex="1" id="id" label="id" sort="rdf:http://dummy/rdf#id" />
+      <splitter class="tree-splitter"/>
+      <treecol flex="1" id="title" label="title" sort="rdf:http://dummy/rdf#title" sortActive="true" sortDirection="ascending" /><splitter class="tree-splitter"/>
+     </treecols>
+     <template>
+       <treechildren>
+         <treeitem uri="rdf:*" seltype="single">
+           <treerow >
+             <treecell label="rdf:http://dummy/rdf#id"/>
+             <treecell label="rdf:http://dummy/rdf#title"/>
+           </treerow>
+         </treeitem>
+       </treechildren>
+     </template>
+   </tree>
+   <tree flex="20" id="tc" ref="urn:data:row" datasources="rdf:null" seltype="single" flags="dont-build-content">
+     <treecols> 
+      <treecol flex="1" id="idc" label="id" sort="rdf:http://dummy/rdf#id" />
+      <splitter class="tree-splitter"/>
+      <treecol flex="1" id="titlec" label="title" sort="rdf:http://dummy/rdf#title" sortActive="true" sortDirection="ascending" /><splitter class="tree-splitter"/>
+     </treecols>
+     <template>
+       <treechildren>
+         <treeitem uri="rdf:*" seltype="single">
+           <treerow >
+             <treecell label="rdf:http://dummy/rdf#id"/>
+             <treecell label="rdf:http://dummy/rdf#title"/>
+           </treerow>
+         </treeitem>
+       </treechildren>
+     </template>
+   </tree>
+
+<body xmlns="http://www.w3.org/1999/xhtml" style="height: 300px; overflow: auto;"/>
+
+<script type="application/javascript" src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>      
+
+<script type="application/x-javascript">
+<![CDATA[
+
+var buildCount = 0;
+
+SimpleTest.waitForExplicitFinish();
+
+var TemplateBuilderListener = {
+  willRebuild: function(aBuilder) {
+  },
+
+  didRebuild: function(aBuilder) {
+  ++buildCount;
+    var remove = false;
+    if (buildCount == 2) {
+      remove =true;
+      setTimeout(nextDataSource, 0);
+    } else if (buildCount == 4) {
+      remove = true;
+      setTimeout(continueTest, 0);
+    }
+    if (remove) {
+      var tree = document.getElementById('t');
+      var treec = document.getElementById('tc');
+      tree.builder.removeListener(TemplateBuilderListener);
+      treec.builder.removeListener(TemplateBuilderListener);
+    }
+  },
+
+  QueryInterface: function (aIID)
+  {
+    if (!aIID.equals(Components.interfaces.nsIXULBuilderListener) &&
+        !aIID.equals(Components.interfaces.nsISupports))
+      throw Components.results.NS_ERROR_NO_INTERFACE;
+    return this;
+  }
+};
+
+function runTest() {
+  var tree = document.getElementById('t');
+  var treec = document.getElementById('tc');
+
+  try {
+    var rdfService = Components.classes["@mozilla.org/rdf/rdf-service;1"].
+                       getService(Components.interfaces.nsIRDFService);
+
+    var s1 = window.location.href.replace(/test_bug441785.xul/, "bug441785-1.rdf");
+    var ds1 = rdfService.GetDataSourceBlocking(s1);
+
+    var s2 = window.location.href.replace(/test_bug441785.xul/, "bug441785-2.rdf");
+    var ds2 = rdfService.GetDataSourceBlocking(s2);
+  } catch (ex) { }
+
+  tree.builder.addListener(TemplateBuilderListener);
+  treec.builder.addListener(TemplateBuilderListener);
+  tree.setAttribute('datasources', 'bug441785-1.rdf');
+  treec.setAttribute('datasources', 'bug441785-1.rdf');
+}
+
+var oldtreefirstrow, oldtreecfirstrow;
+
+function nextDataSource()
+{
+  var tree = document.getElementById('t');
+  var treec = document.getElementById('tc');
+  tree.treeBoxObject.scrollToRow(10);
+  treec.treeBoxObject.scrollToRow(10);
+
+  is(tree.treeBoxObject.getFirstVisibleRow(), 10, "first tree row count datasource 1");
+  is(treec.treeBoxObject.getFirstVisibleRow(), 10, "second tree row count datasource 1");
+
+  tree.builder.addListener(TemplateBuilderListener);
+  treec.builder.addListener(TemplateBuilderListener);
+  tree.setAttribute('datasources', 'bug441785-2.rdf');
+  treec.setAttribute('datasources', 'bug441785-2.rdf');
+}
+
+function continueTest() {
+  var tree = document.getElementById('t');
+  var treec = document.getElementById('tc');
+
+  is(tree.treeBoxObject.getFirstVisibleRow(), 0, "first tree row count datasource 2");
+  is(treec.treeBoxObject.getFirstVisibleRow(), 0, "second tree row count datasource 2");
+
+  try {
+    window.QueryInterface(Components.interfaces.nsIInterfaceRequestor)
+            .getInterface(Components.interfaces.nsIDOMWindowUtils)
+            .garbageCollect();
+  } 
+  catch (e) { }
+
+  // Hit the bug, crash 
+  // (not exactly the same kind of crash as 441785, but from the same cause)
+  tree.parentNode.removeChild(tree);
+  treec.parentNode.removeChild(treec);
+
+  SimpleTest.finish();
+}
+
+window.addEventListener("load", runTest, false);
+
+]]>
+</script>
+</window>