OLD | NEW |
| (Empty) |
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_SYSTEM_TRAY_TRAY_BACKGROUND_VIEW_H_ | |
6 #define ASH_SYSTEM_TRAY_TRAY_BACKGROUND_VIEW_H_ | |
7 | |
8 #include <memory> | |
9 | |
10 #include "ash/ash_export.h" | |
11 #include "ash/common/shelf/shelf_types.h" | |
12 #include "ash/common/system/tray/actionable_view.h" | |
13 #include "ash/common/wm/background_animator.h" | |
14 #include "base/macros.h" | |
15 #include "ui/compositor/layer_animation_observer.h" | |
16 #include "ui/views/bubble/tray_bubble_view.h" | |
17 | |
18 namespace ash { | |
19 class ShelfLayoutManager; | |
20 class StatusAreaWidget; | |
21 class TrayEventFilter; | |
22 class TrayBackground; | |
23 class WmShelf; | |
24 | |
25 // Base class for children of StatusAreaWidget: SystemTray, WebNotificationTray, | |
26 // LogoutButtonTray, OverviewButtonTray. | |
27 // This class handles setting and animating the background when the Launcher | |
28 // his shown/hidden. It also inherits from ActionableView so that the tray | |
29 // items can override PerformAction when clicked on. | |
30 class ASH_EXPORT TrayBackgroundView : public ActionableView, | |
31 public BackgroundAnimatorDelegate, | |
32 public ui::ImplicitAnimationObserver { | |
33 public: | |
34 static const char kViewClassName[]; | |
35 | |
36 // Base class for tray containers. Sets the border and layout. The container | |
37 // auto-resizes the widget when necessary. | |
38 class TrayContainer : public views::View { | |
39 public: | |
40 explicit TrayContainer(ShelfAlignment alignment); | |
41 ~TrayContainer() override {} | |
42 | |
43 void SetAlignment(ShelfAlignment alignment); | |
44 | |
45 void set_size(const gfx::Size& size) { size_ = size; } | |
46 | |
47 // views::View: | |
48 gfx::Size GetPreferredSize() const override; | |
49 | |
50 protected: | |
51 // views::View: | |
52 void ChildPreferredSizeChanged(views::View* child) override; | |
53 void ChildVisibilityChanged(View* child) override; | |
54 void ViewHierarchyChanged( | |
55 const ViewHierarchyChangedDetails& details) override; | |
56 | |
57 private: | |
58 void UpdateLayout(); | |
59 | |
60 ShelfAlignment alignment_; | |
61 gfx::Size size_; | |
62 | |
63 DISALLOW_COPY_AND_ASSIGN(TrayContainer); | |
64 }; | |
65 | |
66 explicit TrayBackgroundView(StatusAreaWidget* status_area_widget); | |
67 ~TrayBackgroundView() override; | |
68 | |
69 // Called after the tray has been added to the widget containing it. | |
70 virtual void Initialize(); | |
71 | |
72 // Initializes animations for the bubble. | |
73 static void InitializeBubbleAnimations(views::Widget* bubble_widget); | |
74 | |
75 // views::View: | |
76 void SetVisible(bool visible) override; | |
77 const char* GetClassName() const override; | |
78 void ChildPreferredSizeChanged(views::View* child) override; | |
79 void GetAccessibleState(ui::AXViewState* state) override; | |
80 void AboutToRequestFocusFromTabTraversal(bool reverse) override; | |
81 | |
82 // ActionableView: | |
83 bool PerformAction(const ui::Event& event) override; | |
84 gfx::Rect GetFocusBounds() override; | |
85 void OnGestureEvent(ui::GestureEvent* event) override; | |
86 | |
87 // BackgroundAnimatorDelegate: | |
88 void UpdateBackground(int alpha) override; | |
89 | |
90 // Called whenever the shelf alignment changes. | |
91 virtual void SetShelfAlignment(ShelfAlignment alignment); | |
92 | |
93 // Called when the anchor (tray or bubble) may have moved or changed. | |
94 virtual void AnchorUpdated() {} | |
95 | |
96 // Called from GetAccessibleState, must return a valid accessible name. | |
97 virtual base::string16 GetAccessibleNameForTray() = 0; | |
98 | |
99 // Called when the bubble is resized. | |
100 virtual void BubbleResized(const views::TrayBubbleView* bubble_view) {} | |
101 | |
102 // Hides the bubble associated with |bubble_view|. Called when the widget | |
103 // is closed. | |
104 virtual void HideBubbleWithView(const views::TrayBubbleView* bubble_view) = 0; | |
105 | |
106 // Called by the bubble wrapper when a click event occurs outside the bubble. | |
107 // May close the bubble. | |
108 virtual void ClickedOutsideBubble() = 0; | |
109 | |
110 // Sets |contents| as a child. | |
111 void SetContents(views::View* contents); | |
112 | |
113 // Creates and sets contents background to |background_|. | |
114 void SetContentsBackground(); | |
115 | |
116 // Returns the anchor rect for the bubble. | |
117 gfx::Rect GetBubbleAnchorRect( | |
118 views::Widget* anchor_widget, | |
119 views::TrayBubbleView::AnchorType anchor_type, | |
120 views::TrayBubbleView::AnchorAlignment anchor_alignment) const; | |
121 | |
122 // Returns the bubble anchor alignment based on |shelf_alignment_|. | |
123 views::TrayBubbleView::AnchorAlignment GetAnchorAlignment() const; | |
124 | |
125 // Forces the background to be drawn active if set to true. | |
126 void SetDrawBackgroundAsActive(bool visible); | |
127 | |
128 // Returns true when the the background was overridden to be drawn as active. | |
129 bool draw_background_as_active() const {return draw_background_as_active_; } | |
130 | |
131 StatusAreaWidget* status_area_widget() { | |
132 return status_area_widget_; | |
133 } | |
134 const StatusAreaWidget* status_area_widget() const { | |
135 return status_area_widget_; | |
136 } | |
137 TrayContainer* tray_container() const { return tray_container_; } | |
138 ShelfAlignment shelf_alignment() const { return shelf_alignment_; } | |
139 TrayEventFilter* tray_event_filter() { return tray_event_filter_.get(); } | |
140 | |
141 WmShelf* GetShelf(); | |
142 | |
143 // Updates the arrow visibility based on the launcher visibility. | |
144 void UpdateBubbleViewArrow(views::TrayBubbleView* bubble_view); | |
145 | |
146 private: | |
147 class TrayWidgetObserver; | |
148 | |
149 // Called from Initialize after all status area trays have been created. | |
150 // Sets the border based on the position of the view. | |
151 void SetTrayBorder(); | |
152 | |
153 // ui::ImplicitAnimationObserver: | |
154 void OnImplicitAnimationsCompleted() override; | |
155 bool RequiresNotificationWhenAnimatorDestroyed() const override; | |
156 | |
157 // Applies transformations to the |layer()| to animate the view when | |
158 // SetVisible(false) is called. | |
159 void HideTransformation(); | |
160 | |
161 // Unowned pointer to parent widget. | |
162 StatusAreaWidget* status_area_widget_; | |
163 | |
164 // Convenience pointer to the contents view. | |
165 TrayContainer* tray_container_; | |
166 | |
167 // Shelf alignment. | |
168 // TODO(jamescook): Don't cache this, get it from WmShelf. | |
169 ShelfAlignment shelf_alignment_; | |
170 | |
171 // Owned by the view passed to SetContents(). | |
172 TrayBackground* background_; | |
173 | |
174 // This variable stores the activation override which will tint the background | |
175 // differently if set to true. | |
176 bool draw_background_as_active_; | |
177 | |
178 std::unique_ptr<TrayWidgetObserver> widget_observer_; | |
179 std::unique_ptr<TrayEventFilter> tray_event_filter_; | |
180 | |
181 DISALLOW_COPY_AND_ASSIGN(TrayBackgroundView); | |
182 }; | |
183 | |
184 } // namespace ash | |
185 | |
186 #endif // ASH_SYSTEM_TRAY_TRAY_BACKGROUND_VIEW_H_ | |
OLD | NEW |