1 files changed, 51 insertions, 0 deletions
diff --git a/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/globalkey/client/DocWidget.java b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/globalkey/client/DocWidget.java
new file mode 100644
index 0000000000..d680a72130
--- /dev/null
+++ b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/globalkey/client/DocWidget.java
@@ -0,0 +1,51 @@
+// Copyright (C) 2009 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.google.gwtexpui.globalkey.client;
+
+import com.google.gwt.dom.client.Document;
+import com.google.gwt.dom.client.Element;
+import com.google.gwt.dom.client.Node;
+import com.google.gwt.event.dom.client.HasKeyPressHandlers;
+import com.google.gwt.event.dom.client.KeyPressEvent;
+import com.google.gwt.event.dom.client.KeyPressHandler;
+import com.google.gwt.event.shared.HandlerRegistration;
+import com.google.gwt.user.client.ui.RootPanel;
+import com.google.gwt.user.client.ui.Widget;
+
+class DocWidget extends Widget implements HasKeyPressHandlers {
+  private static DocWidget me;
+
+  static DocWidget get() {
+    if (me == null) {
+      me = new DocWidget();
+    }
+    return me;
+  }
+
+  private DocWidget() {
+    setElement((Element) docnode());
+    onAttach();
+    RootPanel.detachOnWindowClose(this);
+  }
+
+  @Override
+  public HandlerRegistration addKeyPressHandler(KeyPressHandler handler) {
+    return addDomHandler(handler, KeyPressEvent.getType());
+  }
+
+  private static Node docnode() {
+    return Document.get();
+  }
+}