Index: main/core/src/main/java/hudson/scm/RepositoryBrowsers.java
===================================================================
RCS file: /cvs/hudson/hudson/main/core/src/main/java/hudson/scm/RepositoryBrowsers.java,v
retrieving revision 1.4
diff -u -r1.4 RepositoryBrowsers.java
--- main/core/src/main/java/hudson/scm/RepositoryBrowsers.java	25 Mar 2007 01:23:49 -0000	1.4
+++ main/core/src/main/java/hudson/scm/RepositoryBrowsers.java	2 Apr 2007 05:36:37 -0000
@@ -21,7 +21,7 @@
     /**
      * List of all installed {@link RepositoryBrowsers}.
      */
-    public static final List<Descriptor<RepositoryBrowser<?>>> LIST = Arrays.asList(
+    public static final List<Descriptor<RepositoryBrowser<?>>> LIST = Descriptor.toList(
         ViewCVS.DESCRIPTOR,
         ViewSVN.DESCRIPTOR,
         FishEyeSVN.DESCRIPTOR
Index: plugins/trac/src/main/java/hudson/plugins/trac/TracRepositoryBrowser.java
===================================================================
RCS file: /cvs/hudson/hudson/plugins/trac/src/main/java/hudson/plugins/trac/TracRepositoryBrowser.java,v
retrieving revision 1.2
diff -u -r1.2 TracRepositoryBrowser.java
--- plugins/trac/src/main/java/hudson/plugins/trac/TracRepositoryBrowser.java	2 Apr 2007 02:16:43 -0000	1.2
+++ plugins/trac/src/main/java/hudson/plugins/trac/TracRepositoryBrowser.java	2 Apr 2007 05:36:39 -0000
@@ -2,6 +2,7 @@
 
 import hudson.model.Descriptor;
 import hudson.model.AbstractProject;
+import hudson.scm.EditType;
 import hudson.scm.RepositoryBrowser;
 import hudson.scm.SubversionChangeLogSet.LogEntry;
 import hudson.scm.SubversionChangeLogSet.Path;
@@ -9,6 +10,7 @@
 import org.kohsuke.stapler.StaplerRequest;
 
 import java.io.IOException;
+import java.net.MalformedURLException;
 import java.net.URL;
 
 /**
@@ -19,32 +21,35 @@
     }
 
     /**
-     * Gets the {@link TracProjectProperty#tracWebsite} value configured
-     * for the current project.
+     * Gets a URL for the {@link TracProjectProperty#tracWebsite} value
+     * configured for the current project.
      */
-    private String getTracWebURL(LogEntry cs) {
+    private URL getTracWebURL(LogEntry cs) throws MalformedURLException {
         AbstractProject<?,?> p = cs.getParent().build.getProject();
         TracProjectProperty tpp = p.getProperty(TracProjectProperty.class);
         if(tpp==null)   return null;
-        else            return tpp.tracWebsite;
+        else            return new URL(tpp.tracWebsite);
     }
 
+    @Override
     public URL getDiffLink(Path path) throws IOException {
-        String baseUrl = getTracWebURL(path.getLogEntry());
-        // TODO
-        throw new UnsupportedOperationException();
+        if(path.getEditType()!= EditType.EDIT)
+            return null;    // no diff if this is not an edit change
+        URL baseUrl = getTracWebURL(path.getLogEntry());
+        int revision = path.getLogEntry().getRevision();
+        return new URL(baseUrl, "changeset/" + revision + path.getValue() + "#file0");
     }
 
+    @Override
     public URL getFileLink(Path path) throws IOException {
-        String baseUrl = getTracWebURL(path.getLogEntry());
-        // TODO
-        throw new UnsupportedOperationException();
+        URL baseUrl = getTracWebURL(path.getLogEntry());
+        return baseUrl == null ? null : new URL(baseUrl, "browser" + path.getValue() + "#L1");
     }
 
+    @Override
     public URL getChangeSetLink(LogEntry changeSet) throws IOException {
-        String baseUrl = getTracWebURL(changeSet);
-        // TODO
-        throw new UnsupportedOperationException();
+        URL baseUrl = getTracWebURL(changeSet);
+        return baseUrl == null ? null : new URL(baseUrl, "changeset" + changeSet.getRevision());
     }
 
     public DescriptorImpl getDescriptor() {
Index: plugins/trac/src/main/resources/hudson/plugins/trac/TracRepositoryBrowser/config.jelly
===================================================================
RCS file: plugins/trac/src/main/resources/hudson/plugins/trac/TracRepositoryBrowser/config.jelly
diff -N plugins/trac/src/main/resources/hudson/plugins/trac/TracRepositoryBrowser/config.jelly
--- /dev/null	1 Jan 1970 00:00:00 -0000
+++ plugins/trac/src/main/resources/hudson/plugins/trac/TracRepositoryBrowser/config.jelly	2 Apr 2007 05:36:40 -0000
@@ -0,0 +1 @@
+<j:jelly xmlns:j="jelly:core"/>