Compact Navigation prototype

chrome/browser/ui/views/compact_nav/compact_options_bar.h

+// Copyright (c) 2011 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 CHROME_BROWSER_UI_VIEWS_COMPACT_NAV_COMPACT_OPTIONS_BAR_H_
+#define CHROME_BROWSER_UI_VIEWS_COMPACT_NAV_COMPACT_OPTIONS_BAR_H_
+
+#include <vector>
+
+#include "base/basictypes.h"
+#include "base/memory/ref_counted.h"
+#include "base/scoped_ptr.h"
+#include "chrome/browser/command_updater.h"
+#include "ui/base/models/simple_menu_model.h"
+#include "views/controls/button/button.h"
+#include "views/controls/menu/view_menu_delegate.h"
+#include "views/view.h"
+
+class BrowserView;
+class WrenchMenu;
+
+namespace views {
+class MenuButton;
+class MenuListener;
+}  // namespace views
+
+// This class provides a small options bar that includes browser actions and
+// the wrench menu button.
+class CompactOptionsBar : public views::View,
+                          public views::ViewMenuDelegate,
+                          public ui::AcceleratorProvider,
+                          public views::ButtonListener {
+ public:
+  explicit CompactOptionsBar(BrowserView* browser_view);
+  virtual ~CompactOptionsBar();
+
+  // Must be called before anything else, but after adding this view to the
+  // widget.
+  void Init();
+
+  // Add a listener to receive a callback when the menu opens.
+  void AddMenuListener(views::MenuListener* listener);
+
+  // Remove a menu listener.
+  void RemoveMenuListener(views::MenuListener* listener);
+
+  // Overridden from views::View.
+  virtual gfx::Size GetPreferredSize() OVERRIDE;
+  virtual void Layout() OVERRIDE;
+
+  // Overridden from views::MenuDelegate:
+  virtual void RunMenu(views::View* source, const gfx::Point& pt) OVERRIDE;
+
+  // Overridden from ui::AcceleratorProvider:
+  virtual bool GetAcceleratorForCommandId(
+      int command_id,
+      ui::Accelerator* accelerator) OVERRIDE;
+
+ private:
+  // views::ButtonListener implementation.
+  virtual void ButtonPressed(views::Button* sender, const views::Event& event);
+
+  // Load the images for the back and forward buttons.
+  void LoadImages();
+
+  BrowserView* browser_view_;
+
+  bool initialized_;
+
+  // Button and models for the wrench/app menu.
+  views::MenuButton* app_menu_;
+  scoped_ptr<ui::SimpleMenuModel> wrench_menu_model_;
+  scoped_refptr<WrenchMenu> wrench_menu_;
+  std::vector<views::MenuListener*> menu_listeners_;
+
+  // TODO(stevet): Add the BrowserActionsContainer.
+
+  DISALLOW_COPY_AND_ASSIGN(CompactOptionsBar);
+};
+
+#endif  // CHROME_BROWSER_UI_VIEWS_COMPACT_NAV_COMPACT_OPTIONS_BAR_H_