Fix for bug 156548: XUL implementation of duplicates report.

1 files changed, 153 insertions, 0 deletions

diff --git a/js/duplicates.js b/js/duplicates.js
new file mode 100644
index 000000000..b1e94a8a6
--- /dev/null
+++ b/js/duplicates.js
@@ -0,0 +1,153 @@
+/* The contents of this file are subject to the Mozilla Public
+ * License Version 1.1 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at http://www.mozilla.org/MPL/
+ * 
+ * Software distributed under the License is distributed on an "AS
+ * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
+ * implied. See the License for the specific language governing
+ * rights and limitations under the License.
+ * 
+ * The Original Code is the Bugzilla Bug Tracking System.
+ * 
+ * The Initial Developer of the Original Code is Netscape Communications
+ * Corporation. Portions created by Netscape are
+ * Copyright (C) 1998 Netscape Communications Corporation. All
+ * Rights Reserved.
+ * 
+ * Contributor(s): Myk Melez <myk@mozilla.org>
+ */
+
+// When the XUL window finishes loading, load the RDF data into it.
+window.addEventListener('load', loadData, false);
+
+// The base URL of this Bugzilla installation; derived from the page's URL.
+var gBaseURL = window.location.href.replace(/duplicates\.(jar!|xul).*/, "");
+
+function loadData()
+{
+  // Loads the duplicates data as an RDF data source, attaches it to the tree,
+  // and rebuilds the tree to display the data.
+
+  netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");
+  
+  // Get the RDF service so we can use it to load the data source.
+  var rdfService = 
+    Components
+      .classes["@mozilla.org/rdf/rdf-service;1"]
+        .getService(Components.interfaces.nsIRDFService);
+
+  // When a bug report loads in the content iframe, a 'load' event bubbles up
+  // to the browser window, which calls this load handler again, which reloads
+  // the RDF data, which causes the tree to lose the selection.  To prevent
+  // this, we have to remove this handler.
+  window.removeEventListener('load', loadData, false);
+
+  // The URL of the RDF file; by default for performance a static file 
+  // generated by collectstats.pl, but a call to duplicates.cgi if the page's 
+  // URL contains parameters (so we can dynamically generate the RDF data 
+  // based on those parameters).
+  var dataURL = gBaseURL + "data/duplicates.rdf";
+  if (window.location.href.search(/duplicates\.xul\?.+/) != -1)
+    dataURL = window.location.href.replace(/(duplicates\.jar!\/)?duplicates\.xul\?/, "duplicates.cgi?ctype=rdf&");
+  
+  // Get the data source and add it to the XUL tree's database to populate
+  // the tree with the data.
+  var dataSource = rdfService.GetDataSource(dataURL);
+  
+  // If we're using the static file, add an observer that detects failed loads
+  // (in case this installation isn't generating the file nightly) and redirects
+  // to the CGI version when loading of the static version fails.
+  if (window.location.href.search(/duplicates\.xul\?.+/) == -1)
+  {
+    var sink = dataSource.QueryInterface(Components.interfaces.nsIRDFXMLSink);
+    sink.addXMLSinkObserver(StaticDataSourceObserver);
+  }
+  
+  // Add the data source to the tree, set the tree's "ref" attribute
+  // to the base URL of the data source, and rebuild the tree.
+  var resultsTree = document.getElementById('results-tree');
+  resultsTree.database.AddDataSource(dataSource);
+  resultsTree.setAttribute('ref', gBaseURL + "data/duplicates.rdf");
+  resultsTree.builder.rebuild();
+}
+
+function getBugURI()
+{
+  var tree = document.getElementById('results-tree');
+  var index = tree.currentIndex;
+
+  netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");
+  var builder = tree.builder.QueryInterface(Components.interfaces.nsIXULTreeBuilder);
+  var resource = builder.getResourceAtIndex(index);
+
+  return resource.Value;
+}
+
+function loadBugInWindow()
+{
+  // Loads the selected bug in the browser window, replacing the duplicates report
+  // with the bug report.
+
+  var bugURI = getBugURI();
+  window.location = bugURI;
+}
+
+function loadBugInPane()
+{
+  // Loads the selected bug in the iframe-based content pane that is part of 
+  // this XUL document.
+
+  var splitter = document.getElementById('report-content-splitter');
+  var state = splitter.getAttribute('state');
+  if (state != "collapsed")
+  {
+    var bugURI = getBugURI();
+    var browser = document.getElementById('content-browser');
+    browser.setAttribute('src', bugURI);
+  }
+}
+
+var StaticDataSourceObserver = {
+  onBeginLoad: function(aSink) { } , 
+  onInterrupt: function(aSink) { } , 
+  onResume: function(aSink) { } , 
+  onEndLoad: function(aSink)
+  {
+    // Removes the observer from the data source so it doesn't stay around
+    // when duplicates.xul is reloaded from scratch.
+    
+    netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");
+    
+    aSink.removeXMLSinkObserver(StaticDataSourceObserver);
+  } , 
+  onError: function(aSink, aStatus, aErrorMsg)
+  {
+    // Tries the dynamic data source since the static one failed to load.
+    
+    netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");
+    
+    // Get the RDF service so we can use it to load the data source.
+    var rdfService = 
+      Components
+        .classes["@mozilla.org/rdf/rdf-service;1"]
+          .getService(Components.interfaces.nsIRDFService);
+    
+    // Remove the observer from the data source so it doesn't stay around
+    // when duplicates.xul is reloaded from scratch.
+    aSink.removeXMLSinkObserver(StaticDataSourceObserver);
+    
+    // Remove the static data source from the tree.
+    var oldDataSource = aSink.QueryInterface(Components.interfaces.nsIRDFDataSource);
+    var resultsTree = document.getElementById('results-tree');
+    resultsTree.database.RemoveDataSource(oldDataSource);
+
+    // Munge the URL to point to the CGI and load the data source.
+    var dataURL = gBaseURL + "duplicates.cgi?ctype=rdf";
+    newDataSource = rdfService.GetDataSource(dataURL);
+    
+    // Add the data source to the tree and rebuild the tree with the new data.
+    resultsTree.database.AddDataSource(newDataSource);
+    resultsTree.builder.rebuild();
+  }
+};