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1 // Copyright (c) 2012 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 ASH_COMMON_SHELF_SHELF_WIDGET_H_ | |
6 #define ASH_COMMON_SHELF_SHELF_WIDGET_H_ | |
7 | |
8 #include <memory> | |
9 | |
10 #include "ash/ash_export.h" | |
11 #include "ash/common/shelf/shelf_background_animator.h" | |
12 #include "ash/common/shelf/shelf_background_animator_observer.h" | |
13 #include "ash/common/shelf/shelf_layout_manager_observer.h" | |
14 #include "ash/public/cpp/shelf_types.h" | |
15 #include "base/macros.h" | |
16 #include "ui/views/widget/widget.h" | |
17 #include "ui/views/widget/widget_observer.h" | |
18 | |
19 namespace app_list { | |
20 class ApplicationDragAndDropHost; | |
21 } | |
22 | |
23 namespace ash { | |
24 enum class AnimationChangeType; | |
25 class AppListButton; | |
26 class FocusCycler; | |
27 class ShelfLayoutManager; | |
28 class ShelfView; | |
29 class StatusAreaWidget; | |
30 class WmShelf; | |
31 class WmWindow; | |
32 | |
33 // The ShelfWidget manages the shelf view (which contains the shelf icons) and | |
34 // the status area widget. There is one ShelfWidget per display. It is created | |
35 // early during RootWindowController initialization. | |
36 class ASH_EXPORT ShelfWidget : public views::Widget, | |
37 public views::WidgetObserver, | |
38 public ShelfBackgroundAnimatorObserver, | |
39 public ShelfLayoutManagerObserver { | |
40 public: | |
41 ShelfWidget(WmWindow* shelf_container, WmShelf* wm_shelf); | |
42 ~ShelfWidget() override; | |
43 | |
44 void CreateStatusAreaWidget(WmWindow* status_container); | |
45 | |
46 void OnShelfAlignmentChanged(); | |
47 | |
48 // Sets the shelf's background type. | |
49 void SetPaintsBackground(ShelfBackgroundType background_type, | |
50 AnimationChangeType change_type); | |
51 ShelfBackgroundType GetBackgroundType() const; | |
52 | |
53 // Hide the shelf behind a black bar during e.g. a user transition when |hide| | |
54 // is true. The |animation_time_ms| will be used as animation duration. | |
55 void HideShelfBehindBlackBar(bool hide, int animation_time_ms); | |
56 bool IsShelfHiddenBehindBlackBar() const; | |
57 | |
58 ShelfLayoutManager* shelf_layout_manager() { return shelf_layout_manager_; } | |
59 StatusAreaWidget* status_area_widget() const { return status_area_widget_; } | |
60 | |
61 // Creates the shelf view and populates it with icons. Called after the user | |
62 // session is active (and hence the user profile is available). | |
63 ShelfView* CreateShelfView(); | |
64 void PostCreateShelf(); | |
65 | |
66 bool IsShelfVisible() const; | |
67 | |
68 bool IsShowingAppList() const; | |
69 bool IsShowingContextMenu() const; | |
70 bool IsShowingOverflowBubble() const; | |
71 | |
72 // Sets the focus cycler. Also adds the shelf to the cycle. | |
73 void SetFocusCycler(FocusCycler* focus_cycler); | |
74 FocusCycler* GetFocusCycler(); | |
75 | |
76 // Called by the activation delegate, before the shelf is activated | |
77 // when no other windows are visible. | |
78 void WillActivateAsFallback() { activating_as_fallback_ = true; } | |
79 | |
80 // Clean up prior to deletion. | |
81 void Shutdown(); | |
82 | |
83 // See WmShelf::UpdateIconPositionForPanel(). | |
84 void UpdateIconPositionForPanel(WmWindow* panel); | |
85 | |
86 // See WmShelf::GetScreenBoundsOfItemIconForWindow(). | |
87 gfx::Rect GetScreenBoundsOfItemIconForWindow(WmWindow* window); | |
88 | |
89 // Returns the button that opens the app launcher. | |
90 AppListButton* GetAppListButton() const; | |
91 | |
92 // Returns the ApplicationDragAndDropHost for this shelf. | |
93 app_list::ApplicationDragAndDropHost* GetDragAndDropHostForAppList(); | |
94 | |
95 // Overridden from views::WidgetObserver: | |
96 void OnWidgetActivationChanged(views::Widget* widget, bool active) override; | |
97 | |
98 // ShelfBackgroundAnimatorObserver overrides: | |
99 void UpdateShelfItemBackground(SkColor color) override; | |
100 | |
101 // ShelfLayoutManagerObserver overrides: | |
102 void WillDeleteShelfLayoutManager() override; | |
103 | |
104 private: | |
105 class DelegateView; | |
106 friend class DelegateView; | |
107 | |
108 WmShelf* wm_shelf_; | |
109 | |
110 // Owned by the shelf container's window. | |
111 ShelfLayoutManager* shelf_layout_manager_; | |
112 | |
113 // Owned by the native widget. | |
114 StatusAreaWidget* status_area_widget_; | |
115 | |
116 // |delegate_view_| is the contents view of this widget and is cleaned up | |
117 // during CloseChildWindows of the associated RootWindowController. | |
118 DelegateView* delegate_view_; | |
119 // View containing the shelf items. Owned by the views hierarchy. Null when | |
120 // at the login screen. | |
121 ShelfView* shelf_view_; | |
122 ShelfBackgroundAnimator background_animator_; | |
123 bool activating_as_fallback_; | |
124 | |
125 DISALLOW_COPY_AND_ASSIGN(ShelfWidget); | |
126 }; | |
127 | |
128 } // namespace ash | |
129 | |
130 #endif // ASH_COMMON_SHELF_SHELF_WIDGET_H_ | |
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