1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
|
// Copyright 2014 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 UI_VIEWS_CONTROLS_MENU_MENU_RUNNER_IMPL_H_
#define UI_VIEWS_CONTROLS_MENU_MENU_RUNNER_IMPL_H_
#include "ui/views/controls/menu/menu_runner_impl_interface.h"
#include <set>
#include "base/memory/weak_ptr.h"
#include "base/time/time.h"
#include "ui/views/controls/menu/menu_controller_delegate.h"
namespace views {
class MenuController;
class MenuDelegate;
class MenuItemView;
namespace internal {
// A menu runner implementation that uses views::MenuItemView to show a menu.
class MenuRunnerImpl : public MenuRunnerImplInterface,
public MenuControllerDelegate {
public:
explicit MenuRunnerImpl(MenuItemView* menu);
bool IsRunning() const override;
void Release() override;
MenuRunner::RunResult RunMenuAt(Widget* parent,
MenuButton* button,
const gfx::Rect& bounds,
MenuAnchorPosition anchor,
int32 run_types) override;
void Cancel() override;
base::TimeDelta GetClosingEventTime() const override;
// MenuControllerDelegate:
void DropMenuClosed(NotifyType type, MenuItemView* menu) override;
void SiblingMenuCreated(MenuItemView* menu) override;
private:
~MenuRunnerImpl() override;
// Cleans up after the menu is no longer showing. |result| is the menu that
// the user selected, or NULL if nothing was selected.
MenuRunner::RunResult MenuDone(MenuItemView* result, int mouse_event_flags);
// Returns true if mnemonics should be shown in the menu.
bool ShouldShowMnemonics(MenuButton* button);
// The menu. We own this. We don't use scoped_ptr as the destructor is
// protected and we're a friend.
MenuItemView* menu_;
// Any sibling menus. Does not include |menu_|. We own these too.
std::set<MenuItemView*> sibling_menus_;
// Created and set as the delegate of the MenuItemView if Release() is
// invoked. This is done to make sure the delegate isn't notified after
// Release() is invoked. We do this as we assume the delegate is no longer
// valid if MenuRunner has been deleted.
scoped_ptr<MenuDelegate> empty_delegate_;
// Are we in run waiting for it to return?
bool running_;
// Set if |running_| and Release() has been invoked.
bool delete_after_run_;
// Are we running for a drop?
bool for_drop_;
// The controller.
MenuController* controller_;
// Do we own the controller?
bool owns_controller_;
// The timestamp of the event which closed the menu - or 0.
base::TimeDelta closing_event_time_;
// Used to detect deletion of |this| when notifying delegate of success.
base::WeakPtrFactory<MenuRunnerImpl> weak_factory_;
DISALLOW_COPY_AND_ASSIGN(MenuRunnerImpl);
};
} // namespace internal
} // namespace views
#endif // UI_VIEWS_CONTROLS_MENU_MENU_RUNNER_IMPL_H_
|
