Allow users to reset the 'My' menu entries to the server defaults

Change-Id: I42bbca895e29ca8825a569d0c0bff20342dcbc54
Signed-off-by: Edwin Kempin <edwin.kempin@sap.com>

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

@@ -232,6 +232,7 @@ public interface GerritCss extends CssResource {
   String sshHostKeyPanelKnownHostEntry();
   String sshKeyPanelEncodedKey();
   String sshKeyPanelInvalid();
+  String stringListPanelButtons();
   String topMostCell();
   String topmenu();
   String topmenuMenuLeft();

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

@@ -40,10 +40,11 @@ import java.util.List;
 
 public class StringListPanel extends FlowPanel {
   private final StringListTable t;
-  private final Button deleteButton;
   private final HorizontalPanel titlePanel;
+  protected final HorizontalPanel buttonPanel;
+  private final Button deleteButton;
   private Image info;
-  private FocusWidget widget;
+  protected FocusWidget widget;
 
   public StringListPanel(String title, List<String> fieldNames, FocusWidget w,
       boolean autoSort) {
@@ -56,9 +57,10 @@ public class StringListPanel extends FlowPanel {
     t = new StringListTable(fieldNames, autoSort);
     add(t);
 
+    buttonPanel = new HorizontalPanel();
+    buttonPanel.setStyleName(Gerrit.RESOURCES.css().stringListPanelButtons());
     deleteButton = new Button(Gerrit.C.stringListPanelDelete());
     deleteButton.setEnabled(false);
-    add(deleteButton);
     deleteButton.addClickHandler(new ClickHandler() {
       @Override
       public void onClick(ClickEvent event) {
@@ -66,6 +68,8 @@ public class StringListPanel extends FlowPanel {
         t.deleteChecked();
       }
     });
+    buttonPanel.add(deleteButton);
+    add(buttonPanel);
   }
 
   public void display(List<List<String>> values) {

gerrit-gwtui/src/main/java/com/google/gerrit/client/account/AccountConstants.java

@@ -43,6 +43,7 @@ public interface AccountConstants extends Constants {
   String myMenuInfo();
   String myMenuName();
   String myMenuUrl();
+  String myMenuReset();
 
   String changeScreenOldUi();
   String changeScreenNewUi();

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

@@ -23,6 +23,7 @@ myMenu = My Menu
 myMenuInfo = Menu Items for the 'My' top level menu.
 myMenuName = Name
 myMenuUrl = URL
+myMenuReset = Reset
 
 changeScreenOldUi = Old Screen
 changeScreenNewUi = New Screen

gerrit-gwtui/src/main/java/com/google/gerrit/client/account/MyPreferencesScreen.java

@@ -20,6 +20,7 @@ import static com.google.gerrit.reviewdb.client.AccountGeneralPreferences.PAGESI
 import com.google.gerrit.client.Dispatcher;
 import com.google.gerrit.client.Gerrit;
 import com.google.gerrit.client.StringListPanel;
+import com.google.gerrit.client.config.ConfigServerApi;
 import com.google.gerrit.client.extensions.TopMenuItem;
 import com.google.gerrit.client.rpc.GerritCallback;
 import com.google.gerrit.client.rpc.Natives;
@@ -27,6 +28,7 @@ import com.google.gerrit.client.rpc.ScreenLoadCallback;
 import com.google.gerrit.client.ui.OnEditEnabler;
 import com.google.gerrit.reviewdb.client.AccountGeneralPreferences;
 import com.google.gerrit.reviewdb.client.AccountGeneralPreferences.CommentVisibilityStrategy;
+import com.google.gwt.core.client.JsArray;
 import com.google.gwt.event.dom.client.ClickEvent;
 import com.google.gwt.event.dom.client.ClickHandler;
 import com.google.gwt.i18n.client.DateTimeFormat;
@@ -208,10 +210,7 @@ public class MyPreferencesScreen extends SettingsScreen {
       }
     });
 
-    myMenus = new StringListPanel(Util.C.myMenu(),
-        Arrays.asList(Util.C.myMenuName(), Util.C.myMenuUrl()),
-        save, false);
-    myMenus.setInfo(Util.C.myMenuInfo());
+    myMenus = new MyMenuPanel(save);
     add(myMenus);
 
     add(save);
@@ -282,9 +281,12 @@ public class MyPreferencesScreen extends SettingsScreen {
     setListBox(diffView,
         AccountGeneralPreferences.DiffView.SIDE_BY_SIDE,
         p.diffView());
+    display(p.my());
+  }
 
+  private void display(JsArray<TopMenuItem> items) {
     List<List<String>> values = new ArrayList<>();
-    for (TopMenuItem item : Natives.asList(p.my())) {
+    for (TopMenuItem item : Natives.asList(items)) {
       values.add(Arrays.asList(item.getName(), item.getUrl()));
     }
     myMenus.display(values);
@@ -409,4 +411,28 @@ public class MyPreferencesScreen extends SettingsScreen {
         return ui.name();
     }
   }
+
+  private class MyMenuPanel extends StringListPanel {
+    MyMenuPanel(Button save) {
+      super(Util.C.myMenu(), Arrays.asList(Util.C.myMenuName(),
+          Util.C.myMenuUrl()), save, false);
+
+      setInfo(Util.C.myMenuInfo());
+
+      Button resetButton = new Button(Util.C.myMenuReset());
+      resetButton.addClickHandler(new ClickHandler() {
+        @Override
+        public void onClick(ClickEvent event) {
+          ConfigServerApi.defaultPreferences(new GerritCallback<Preferences>() {
+            @Override
+            public void onSuccess(Preferences p) {
+              MyPreferencesScreen.this.display(p.my());
+              widget.setEnabled(true);
+            }
+          });
+        }
+      });
+      buttonPanel.add(resetButton);
+    }
+  }
 }

gerrit-gwtui/src/main/java/com/google/gerrit/client/config/ConfigServerApi.java

@@ -14,6 +14,7 @@
 
 package com.google.gerrit.client.config;
 
+import com.google.gerrit.client.account.Preferences;
 import com.google.gerrit.client.extensions.TopMenuList;
 import com.google.gerrit.client.rpc.NativeMap;
 import com.google.gerrit.client.rpc.RestApi;
@@ -32,4 +33,8 @@ public class ConfigServerApi {
   public static void topMenus(AsyncCallback<TopMenuList> cb) {
     new RestApi("/config/server/top-menus").get(cb);
   }
+
+  public static void defaultPreferences(AsyncCallback<Preferences> cb) {
+    new RestApi("/config/server/preferences").get(cb);
+  }
 }

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

@@ -1628,3 +1628,13 @@ a:hover.downloadLink {
   padding-top: 5px;
   padding-left: 5px;
 }
+
+/* StringListPanel */
+.stringListPanelButtons {
+  margin-left: 0.5em;
+}
+.stringListPanelButtons .gwt-Button {
+  margin-right: 2em;
+  font-size: 7pt;
+  padding: 1px;
+}