Remember the last Project Screen used

Remember the last project screen used every time a project
screen is loaded.  Go to the remembered screen when selecting
a new project from the project list instead of always going
to the project info screen.  This makes navigating between
projects much more pleasant (fewer clicks), especially when
comparing access rights or dashboards.

Change-Id: I5ec4025b42c68028a8a459b25cbe8ad567ab0049

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

@@ -153,8 +153,12 @@ public class Dispatcher {
     return "/admin/groups/uuid-" + uuid.toString() + "," + panel;
   }
 
+  public static String toProject(Project.NameKey n) {
+    return toProjectAdmin(n, ProjectScreen.getSavedPanel());
+  }
+
   public static String toProjectAdmin(Project.NameKey n, String panel) {
-    if (ProjectScreen.INFO.equals(panel)) {
+    if (panel == null || ProjectScreen.INFO.equals(panel)) {
       return "/admin/projects/" + n.toString();
     }
     return "/admin/projects/" + n.toString() + "," + panel;

gerrit-gwtui/src/main/java/com/google/gerrit/client/admin/ProjectAccessScreen.java

@@ -110,6 +110,7 @@ public class ProjectAccessScreen extends ProjectScreen {
             displayReadOnly(access);
           }
         });
+    savedPanel = ACCESS;
   }
 
   private void displayReadOnly(ProjectAccess access) {

gerrit-gwtui/src/main/java/com/google/gerrit/client/admin/ProjectBranchesScreen.java

@@ -86,6 +86,7 @@ public class ProjectBranchesScreen extends ProjectScreen {
             }
           }
         });
+    savedPanel = BRANCH;
   }
 
   private void display(final List<Branch> listBranches) {

gerrit-gwtui/src/main/java/com/google/gerrit/client/admin/ProjectDashboardsScreen.java

@@ -40,6 +40,7 @@ public class ProjectDashboardsScreen extends ProjectScreen {
         dashes.display(result);
       }
     });
+    savedPanel = DASHBOARDS;
   }
 
   @Override

gerrit-gwtui/src/main/java/com/google/gerrit/client/admin/ProjectInfoScreen.java

@@ -99,6 +99,7 @@ public class ProjectInfoScreen extends ProjectScreen {
             display(result);
           }
         });
+    savedPanel = INFO;
   }
 
   private void enableForm(final boolean canModifyAgreements,

gerrit-gwtui/src/main/java/com/google/gerrit/client/admin/ProjectListScreen.java

@@ -101,7 +101,7 @@ public class ProjectListScreen extends Screen {
       }
 
       private String link(final ProjectInfo item) {
-        return Dispatcher.toProjectAdmin(item.name_key(), ProjectScreen.INFO);
+        return Dispatcher.toProject(item.name_key());
       }
 
       @Override

gerrit-gwtui/src/main/java/com/google/gerrit/client/admin/ProjectScreen.java

@@ -23,6 +23,12 @@ public abstract class ProjectScreen extends Screen {
   public static final String ACCESS = "access";
   public static final String DASHBOARDS = "dashboards";
 
+  protected static String savedPanel;
+
+  public static String getSavedPanel() {
+    return savedPanel;
+  }
+
   private final Project.NameKey name;
 
   public ProjectScreen(final Project.NameKey toShow) {