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| 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 UI_VIEWS_CONTROLS_MENU_MENU_RUNNER_IMPL_H_ | |
| 6 #define UI_VIEWS_CONTROLS_MENU_MENU_RUNNER_IMPL_H_ | |
| 7 | |
| 8 #include "ui/views/controls/menu/menu_runner_impl_interface.h" | |
| 9 | |
| 10 #include <set> | |
| 11 | |
| 12 #include "base/memory/weak_ptr.h" | |
| 13 #include "base/time/time.h" | |
| 14 #include "ui/views/controls/menu/menu_controller_delegate.h" | |
| 15 | |
| 16 namespace views { | |
| 17 | |
| 18 class MenuController; | |
| 19 class MenuDelegate; | |
| 20 class MenuItemView; | |
| 21 | |
| 22 namespace internal { | |
| 23 | |
| 24 // A menu runner implementation that uses views::MenuItemView to show a menu. | |
| 25 class MenuRunnerImpl : public MenuRunnerImplInterface, | |
| 26 public MenuControllerDelegate { | |
| 27 public: | |
| 28 explicit MenuRunnerImpl(MenuItemView* menu); | |
| 29 | |
| 30 virtual bool IsRunning() const override; | |
| 31 virtual void Release() override; | |
| 32 virtual MenuRunner::RunResult RunMenuAt(Widget* parent, | |
| 33 MenuButton* button, | |
| 34 const gfx::Rect& bounds, | |
| 35 MenuAnchorPosition anchor, | |
| 36 int32 run_types) override; | |
| 37 virtual void Cancel() override; | |
| 38 virtual base::TimeDelta GetClosingEventTime() const override; | |
| 39 | |
| 40 // MenuControllerDelegate: | |
| 41 virtual void DropMenuClosed(NotifyType type, MenuItemView* menu) override; | |
| 42 virtual void SiblingMenuCreated(MenuItemView* menu) override; | |
| 43 | |
| 44 private: | |
| 45 virtual ~MenuRunnerImpl(); | |
| 46 | |
| 47 // Cleans up after the menu is no longer showing. |result| is the menu that | |
| 48 // the user selected, or NULL if nothing was selected. | |
| 49 MenuRunner::RunResult MenuDone(MenuItemView* result, int mouse_event_flags); | |
| 50 | |
| 51 // Returns true if mnemonics should be shown in the menu. | |
| 52 bool ShouldShowMnemonics(MenuButton* button); | |
| 53 | |
| 54 // The menu. We own this. We don't use scoped_ptr as the destructor is | |
| 55 // protected and we're a friend. | |
| 56 MenuItemView* menu_; | |
| 57 | |
| 58 // Any sibling menus. Does not include |menu_|. We own these too. | |
| 59 std::set<MenuItemView*> sibling_menus_; | |
| 60 | |
| 61 // Created and set as the delegate of the MenuItemView if Release() is | |
| 62 // invoked. This is done to make sure the delegate isn't notified after | |
| 63 // Release() is invoked. We do this as we assume the delegate is no longer | |
| 64 // valid if MenuRunner has been deleted. | |
| 65 scoped_ptr<MenuDelegate> empty_delegate_; | |
| 66 | |
| 67 // Are we in run waiting for it to return? | |
| 68 bool running_; | |
| 69 | |
| 70 // Set if |running_| and Release() has been invoked. | |
| 71 bool delete_after_run_; | |
| 72 | |
| 73 // Are we running for a drop? | |
| 74 bool for_drop_; | |
| 75 | |
| 76 // The controller. | |
| 77 MenuController* controller_; | |
| 78 | |
| 79 // Do we own the controller? | |
| 80 bool owns_controller_; | |
| 81 | |
| 82 // The timestamp of the event which closed the menu - or 0. | |
| 83 base::TimeDelta closing_event_time_; | |
| 84 | |
| 85 // Used to detect deletion of |this| when notifying delegate of success. | |
| 86 base::WeakPtrFactory<MenuRunnerImpl> weak_factory_; | |
| 87 | |
| 88 DISALLOW_COPY_AND_ASSIGN(MenuRunnerImpl); | |
| 89 }; | |
| 90 | |
| 91 } // namespace internal | |
| 92 } // namespace views | |
| 93 | |
| 94 #endif // UI_VIEWS_CONTROLS_MENU_MENU_RUNNER_IMPL_H_ | |
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