Move the Groups and Plugins menu items to the top level.

It was inconsistent to access projects administration from the top-level
Projects menu item and, at the same time, have to go to Admin > Groups
or Admin > Plugins to access the Groups or Plugins administration.

This change also removes the top-level Admin menu as it becomes
unnecessary once the Groups and Plugins are moved to the top-level.

Change-Id: Ia58b768317a1998165d782d81952552b5395cbc6
Signed-off-by: Sasa Zivkov <sasa.zivkov@sap.com>

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

@@ -16,6 +16,7 @@ package com.google.gerrit.client;
 
 import static com.google.gerrit.common.data.GlobalCapability.ADMINISTRATE_SERVER;
 import static com.google.gerrit.common.data.GlobalCapability.CREATE_PROJECT;
+import static com.google.gerrit.common.data.GlobalCapability.CREATE_GROUP;
 
 import com.google.gerrit.client.account.AccountCapabilities;
 import com.google.gerrit.client.auth.openid.OpenIdSignInDialog;
@@ -610,17 +611,28 @@ public class Gerrit implements EntryPoint {
     menuLeft.add(projectsBar, C.menuProjects());
 
     if (signedIn) {
-      final LinkMenuBar menuBar = new LinkMenuBar();
-      addLink(menuBar, C.menuGroups(), PageLinks.ADMIN_GROUPS);
+      final LinkMenuBar groupsBar = new LinkMenuBar();
+      addLink(groupsBar, C.menuGroupsList(), PageLinks.ADMIN_GROUPS);
+      AccountCapabilities.all(new GerritCallback<AccountCapabilities>() {
+        @Override
+        public void onSuccess(AccountCapabilities result) {
+          if (result.canPerform(CREATE_GROUP)) {
+            addLink(groupsBar, C.menuGroupsCreate(), PageLinks.ADMIN_CREATE_GROUP);
+          }
+        }
+      }, CREATE_GROUP);
+      menuLeft.add(groupsBar, C.menuGroups());
+
+      final LinkMenuBar pluginsBar = new LinkMenuBar();
       AccountCapabilities.all(new GerritCallback<AccountCapabilities>() {
         @Override
         public void onSuccess(AccountCapabilities result) {
           if (result.canPerform(ADMINISTRATE_SERVER)) {
-            addLink(menuBar, C.menuPlugins(), PageLinks.ADMIN_PLUGINS);
+            addLink(pluginsBar, C.menuPluginsInstalled(), PageLinks.ADMIN_PLUGINS);
+            menuLeft.add(pluginsBar, C.menuPlugins());
           }
         }
       }, ADMINISTRATE_SERVER);
-      menuLeft.add(menuBar, C.menuAdmin());
     }
 
     if (getConfig().isDocumentationAvailable()) {

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

@@ -73,10 +73,12 @@ public interface GerritConstants extends Constants {
   String menuProjectsList();
   String menuProjectsCreate();
 
-  String menuAdmin();
   String menuPeople();
   String menuGroups();
+  String menuGroupsList();
+  String menuGroupsCreate();
   String menuPlugins();
+  String menuPluginsInstalled();
 
   String menuDocumentation();
   String menuDocumentationIndex();

gerrit-gwtui/src/main/java/com/google/gerrit/client/GerritConstants.properties

@@ -56,10 +56,13 @@ menuProjects = Projects
 menuProjectsList = List
 menuProjectsCreate = Create New Project
 
-menuAdmin = Admin
 menuPeople = People
 menuGroups = Groups
+menuGroupsList = List
+menuGroupsCreate = Create New Group
+
 menuPlugins = Plugins
+menuPluginsInstalled = Installed
 
 menuDocumentation = Documentation
 menuDocumentationIndex = Index

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

@@ -108,7 +108,6 @@ public interface AdminConstants extends Constants {
   String projectAdminTabAccess();
 
   String plugins();
-  String pluginTabInstalled();
   String pluginDisabled();
 
   String columnPluginName();

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

@@ -88,7 +88,6 @@ projectAdminTabBranches = Branches
 projectAdminTabAccess = Access
 
 plugins = Plugins
-pluginTabInstalled = Installed
 pluginDisabled = Disabled
 columnPluginName = Plugin Name
 columnPluginVersion = Version

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

@@ -14,16 +14,12 @@
 
 package com.google.gerrit.client.admin;
 
-import com.google.gerrit.client.Gerrit;
 import com.google.gerrit.client.rpc.ScreenLoadCallback;
 import com.google.gerrit.client.ui.AccountScreen;
-import com.google.gerrit.client.ui.Hyperlink;
 import com.google.gerrit.common.PageLinks;
 import com.google.gerrit.common.data.GroupList;
-import com.google.gwt.user.client.ui.VerticalPanel;
 
 public class GroupListScreen extends AccountScreen {
-  private VerticalPanel createGroupLinkPanel;
   private GroupTable groups;
 
   @Override
@@ -33,7 +29,6 @@ public class GroupListScreen extends AccountScreen {
         .visibleGroups(new ScreenLoadCallback<GroupList>(this) {
           @Override
           protected void preDisplay(GroupList result) {
-            createGroupLinkPanel.setVisible(result.isCanCreateGroup());
             groups.display(result.getGroups());
             groups.finishDisplay();
           }
@@ -45,12 +40,6 @@ public class GroupListScreen extends AccountScreen {
     super.onInitUI();
     setPageTitle(Util.C.groupListTitle());
 
-    createGroupLinkPanel = new VerticalPanel();
-    createGroupLinkPanel.setStyleName(Gerrit.RESOURCES.css().createGroupLink());
-    createGroupLinkPanel.add(new Hyperlink(Util.C.headingCreateGroup(),
-        PageLinks.ADMIN_CREATE_GROUP));
-    add(createGroupLinkPanel);
-
     groups = new GroupTable(true /* hyperlink to admin */, PageLinks.ADMIN_GROUPS);
     add(groups);
   }

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

@@ -14,16 +14,12 @@
 
 package com.google.gerrit.client.admin;
 
-import static com.google.gerrit.common.PageLinks.ADMIN_PLUGINS;
+import com.google.gerrit.client.ui.Screen;
 
-import com.google.gerrit.client.ui.MenuScreen;
-
-public abstract class PluginScreen extends MenuScreen {
+public abstract class PluginScreen extends Screen {
 
   public PluginScreen() {
     setRequiresSignIn(true);
-
-    link(Util.C.pluginTabInstalled(), ADMIN_PLUGINS);
   }
 
   @Override