1 files changed, 56 insertions, 0 deletions
diff --git a/views/controls/menu/menu_host_root_view.h b/views/controls/menu/menu_host_root_view.h
new file mode 100644
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+++ b/views/controls/menu/menu_host_root_view.h
@@ -0,0 +1,56 @@
+// Copyright (c) 2009 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef VIEWS_CONTROLS_MENU_MENU_HOST_ROOT_VIEW_H_
+#define VIEWS_CONTROLS_MENU_MENU_HOST_ROOT_VIEW_H_
+
+#include "views/widget/root_view.h"
+
+namespace views {
+
+class MenuController;
+class SubmenuView;
+
+// MenuHostRootView is the RootView of the window showing the menu.
+// SubmenuView's scroll view is added as a child of MenuHostRootView.
+// MenuHostRootView forwards relevant events to the MenuController.
+//
+// As all the menu items are owned by the root menu item, care must be taken
+// such that when MenuHostRootView is deleted it doesn't delete the menu items.
+class MenuHostRootView : public RootView {
+ public:
+  MenuHostRootView(Widget* widget, SubmenuView* submenu);
+
+  // When invoked subsequent events are NOT forwarded to the MenuController.
+  void suspend_events() {
+    suspend_events_ = true;
+  }
+
+  virtual bool OnMousePressed(const MouseEvent& event);
+  virtual bool OnMouseDragged(const MouseEvent& event);
+  virtual void OnMouseReleased(const MouseEvent& event, bool canceled);
+  virtual void OnMouseMoved(const MouseEvent& event);
+  virtual void ProcessOnMouseExited();
+  virtual bool ProcessMouseWheelEvent(const MouseWheelEvent& e);
+
+ private:
+  // Returns the MenuController for this MenuHostRootView.
+  MenuController* GetMenuController();
+
+  // The SubmenuView we contain.
+  SubmenuView* submenu_;
+
+  // Whether mouse dragged/released should be forwarded to the MenuController.
+  bool forward_drag_to_menu_controller_;
+
+  // Whether events are suspended. If true, no events are forwarded to the
+  // MenuController.
+  bool suspend_events_;
+
+  DISALLOW_COPY_AND_ASSIGN(MenuHostRootView);
+};
+
+}  // namespace views
+
+#endif  // VIEWS_CONTROLS_MENU_MENU_HOST_ROOT_VIEW_H_