Link dashboard title to a url version of itself

When using a stable project dashboard URL, the url
obfuscates the content of the dashboard which can make
it hard to debug a dashboard or copy and modify it.  In
the special case of stable dashboards, make the title a
link to an unstable url version of the dashboard with the
url reflecting the actual dashboard contents the way a
custom dashboard does.

Change-Id: I7916bdd8767b5f0854e4b0e1a05ff8eb3bfc3a16

gerrit-common/src/main/java/com/google/gerrit/common/PageLinks.java

@@ -69,6 +69,10 @@ public class PageLinks {
     return toChangeQuery(op("owner", fullname) + " " + status(status), TOP);
   }
 
+  public static String toCustomDashboard(final String params) {
+    return "/dashboard/?" + params;
+  }
+
   public static String toProjectDashboards(Project.NameKey proj) {
     return ADMIN_PROJECTS + proj.get() + ",dashboards";
   }

gerrit-gwtui/src/main/java/com/google/gerrit/client/Dispatcher.java

@@ -73,6 +73,7 @@ import com.google.gerrit.client.dashboards.DashboardInfo;
 import com.google.gerrit.client.dashboards.DashboardList;
 import com.google.gerrit.client.patches.PatchScreen;
 import com.google.gerrit.client.rpc.GerritCallback;
+import com.google.gerrit.client.ui.InlineHyperlink;
 import com.google.gerrit.client.ui.Screen;
 import com.google.gerrit.common.PageLinks;
 import com.google.gerrit.common.auth.SignInMode;
@@ -406,8 +407,10 @@ public class Dispatcher {
           @Override
           public void onSuccess(DashboardInfo result) {
             if (matchPrefix("/dashboard/", result.url())) {
-              String rest = skip(result.url());
-              Gerrit.display(token, new CustomDashboardScreen(rest.substring(1)));
+              String params = skip(result.url()).substring(1);
+              CustomDashboardScreen dash = new CustomDashboardScreen(params);
+              dash.setTitle(new InlineHyperlink(dash.getTitle(), PageLinks.toCustomDashboard(params)));
+              Gerrit.display(token, dash);
             }
           }
 

gerrit-gwtui/src/main/java/com/google/gerrit/client/changes/CustomDashboardScreen.java

@@ -27,6 +27,7 @@ import java.util.List;
 import java.util.ListIterator;
 
 public class CustomDashboardScreen extends Screen implements ChangeListScreen {
+  private String params;
   private String title;
   private List<String> titles;
   private List<String> queries;
@@ -34,6 +35,7 @@ public class CustomDashboardScreen extends Screen implements ChangeListScreen {
   private List<ChangeTable2.Section> sections;
 
   public CustomDashboardScreen(String params) {
+    this.params = params;
     titles = new ArrayList<String>();
     queries = new ArrayList<String>();
     String foreach = null;
@@ -123,4 +125,8 @@ public class CustomDashboardScreen extends Screen implements ChangeListScreen {
     super.registerKeys();
     table.setRegisterKeys(true);
   }
+
+  public String getTitle() {
+    return title;
+  }
 }

gerrit-gwtui/src/main/java/com/google/gerrit/client/ui/Screen.java

@@ -39,6 +39,7 @@ public abstract class Screen extends View {
   private String token;
   private boolean requiresSignIn;
   private String windowTitle;
+  private Widget titleWidget;
 
   protected Screen() {
     initWidget(new FlowPanel());
@@ -65,8 +66,12 @@ public abstract class Screen extends View {
     me.add(header = new Grid(1, Cols.values().length));
     me.add(body = new FlowPanel());
 
+    headerText = new InlineLabel();
+    if (titleWidget == null) {
+      titleWidget = headerText;
+    }
     FlowPanel title = new FlowPanel();
-    title.add(headerText = new InlineLabel());
+    title.add(titleWidget);
     title.setStyleName(Gerrit.RESOURCES.css().screenHeader());
     header.setWidget(0, Cols.Title.ordinal(), title);
 
@@ -99,6 +104,10 @@ public abstract class Screen extends View {
     header.setVisible(value);
   }
 
+  public void setTitle(final Widget w) {
+    titleWidget = w;
+  }
+
   protected void setTitleEast(final Widget w) {
     header.setWidget(0, Cols.East.ordinal(), w);
   }