chrome/browser/ui/views/toolbar/chevron_menu_button.h

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef CHROME_BROWSER_UI_VIEWS_TOOLBAR_CHEVRON_MENU_BUTTON_H_
   6 #define CHROME_BROWSER_UI_VIEWS_TOOLBAR_CHEVRON_MENU_BUTTON_H_
   7
   8 #include "base/macros.h"
   9 #include "base/memory/scoped_ptr.h"
  10 #include "base/memory/weak_ptr.h"
  11 #include "ui/views/controls/button/menu_button.h"
  12 #include "ui/views/controls/button/menu_button_listener.h"
  13
  14 class BrowserActionsContainer;
  15
  16 // The MenuButton for the chevron in the extension toolbar, which is also
  17 // responsible for showing the legacy (drop-down) overflow menu.
  18 class ChevronMenuButton : public views::MenuButton,
  19                           public views::MenuButtonListener {
  20  public:
  21   explicit ChevronMenuButton(
  22       BrowserActionsContainer* browser_actions_container);
  23   ~ChevronMenuButton() override;
  24
  25   // Closes the overflow menu (and any context menu), if it is open.
  26   void CloseMenu();
  27
  28  private:
  29   class MenuController;
  30
  31   // views::MenuButton:
  32   scoped_ptr<views::LabelButtonBorder> CreateDefaultBorder() const override;
  33   bool GetDropFormats(
  34       int* formats,
  35       std::set<ui::OSExchangeData::CustomFormat>* custom_formats) override;
  36   bool AreDropTypesRequired() override;
  37   bool CanDrop(const ui::OSExchangeData& data) override;
  38   void OnDragEntered(const ui::DropTargetEvent& event) override;
  39   int OnDragUpdated(const ui::DropTargetEvent& event) override;
  40   void OnDragExited() override;
  41   int OnPerformDrop(const ui::DropTargetEvent& event) override;
  42
  43   // views::MenuButtonListener:
  44   void OnMenuButtonClicked(View* source, const gfx::Point& point) override;
  45
  46   // Shows the overflow menu.
  47   void ShowOverflowMenu(bool for_drop);
  48
  49   // Called by the overflow menu when all the work is done.
  50   void MenuDone();
  51
  52   // The owning BrowserActionsContainer.
  53   BrowserActionsContainer* browser_actions_container_;
  54
  55   // The overflow menu controller.
  56   scoped_ptr<MenuController> menu_controller_;
  57
  58   base::WeakPtrFactory<ChevronMenuButton> weak_factory_;
  59
  60   DISALLOW_COPY_AND_ASSIGN(ChevronMenuButton);
  61 };
  62
  63 #endif  // CHROME_BROWSER_UI_VIEWS_TOOLBAR_CHEVRON_MENU_BUTTON_H_