Update To 11.40.268.0
[platform/framework/web/crosswalk.git] / src / ash / wm / app_list_controller.h
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_WM_APP_LIST_CONTROLLER_H_
6 #define ASH_WM_APP_LIST_CONTROLLER_H_
7
8 #include "ash/shelf/shelf_icon_observer.h"
9 #include "ash/shell_observer.h"
10 #include "base/basictypes.h"
11 #include "base/compiler_specific.h"
12 #include "ui/app_list/pagination_model_observer.h"
13 #include "ui/aura/client/focus_change_observer.h"
14 #include "ui/aura/window_observer.h"
15 #include "ui/compositor/layer_animation_observer.h"
16 #include "ui/events/event_handler.h"
17 #include "ui/gfx/rect.h"
18 #include "ui/keyboard/keyboard_controller_observer.h"
19 #include "ui/views/widget/widget_observer.h"
20
21 namespace app_list {
22 class ApplicationDragAndDropHost;
23 class AppListView;
24 }
25
26 namespace ui {
27 class LocatedEvent;
28 }
29
30 namespace ash {
31 namespace test {
32 class AppListControllerTestApi;
33 }
34
35 // AppListController is a controller that manages app list UI for shell.
36 // It creates AppListView and schedules showing/hiding animation.
37 // While the UI is visible, it monitors things such as app list widget's
38 // activation state and desktop mouse click to auto dismiss the UI.
39 class AppListController : public ui::EventHandler,
40                           public aura::client::FocusChangeObserver,
41                           public aura::WindowObserver,
42                           public ui::ImplicitAnimationObserver,
43                           public views::WidgetObserver,
44                           public keyboard::KeyboardControllerObserver,
45                           public ShellObserver,
46                           public ShelfIconObserver,
47                           public app_list::PaginationModelObserver {
48  public:
49   AppListController();
50   ~AppListController() override;
51
52   // Show/hide app list window. The |window| is used to deterime in
53   // which display (in which the |window| exists) the app list should
54   // be shown.
55   void Show(aura::Window* window);
56   void Dismiss();
57
58   // Whether app list window is visible (shown or being shown).
59   bool IsVisible() const;
60
61   // Returns target visibility. This differs from IsVisible() if an animation
62   // is ongoing.
63   bool GetTargetVisibility() const { return is_visible_; }
64
65   // Returns app list window or NULL if it is not visible.
66   aura::Window* GetWindow();
67
68   // Returns app list view or NULL if it is not visible.
69   app_list::AppListView* GetView() { return view_; }
70
71  private:
72   friend class test::AppListControllerTestApi;
73
74   // If |drag_and_drop_host| is not NULL it will be called upon drag and drop
75   // operations outside the application list.
76   void SetDragAndDropHostOfCurrentAppList(
77       app_list::ApplicationDragAndDropHost* drag_and_drop_host);
78
79   // Sets the app list view and attempts to show it.
80   void SetView(app_list::AppListView* view);
81
82   // Forgets the view.
83   void ResetView();
84
85   // Starts show/hide animation.
86   void ScheduleAnimation();
87
88   void ProcessLocatedEvent(ui::LocatedEvent* event);
89
90   // Makes app list bubble update its bounds.
91   void UpdateBounds();
92
93   // ui::EventHandler overrides:
94   void OnMouseEvent(ui::MouseEvent* event) override;
95   void OnGestureEvent(ui::GestureEvent* event) override;
96
97   // aura::client::FocusChangeObserver overrides:
98   void OnWindowFocused(aura::Window* gained_focus,
99                        aura::Window* lost_focus) override;
100
101   // aura::WindowObserver overrides:
102   void OnWindowBoundsChanged(aura::Window* root,
103                              const gfx::Rect& old_bounds,
104                              const gfx::Rect& new_bounds) override;
105
106   // ui::ImplicitAnimationObserver overrides:
107   void OnImplicitAnimationsCompleted() override;
108
109   // views::WidgetObserver overrides:
110   void OnWidgetDestroying(views::Widget* widget) override;
111
112   // KeyboardControllerObserver overrides:
113   void OnKeyboardBoundsChanging(const gfx::Rect& new_bounds) override;
114
115   // ShellObserver overrides:
116   void OnShelfAlignmentChanged(aura::Window* root_window) override;
117
118   // ShelfIconObserver overrides:
119   void OnShelfIconPositionsChanged() override;
120
121   // app_list::PaginationModelObserver overrides:
122   void TotalPagesChanged() override;
123   void SelectedPageChanged(int old_selected, int new_selected) override;
124   void TransitionStarted() override;
125   void TransitionChanged() override;
126
127   // Whether we should show or hide app list widget.
128   bool is_visible_;
129
130   // Whether the app list should remain centered.
131   bool is_centered_;
132
133   // The AppListView this class manages, owned by its widget.
134   app_list::AppListView* view_;
135
136   // The current page of the AppsGridView of |view_|. This is stored outside of
137   // the view's PaginationModel, so that it persists when the view is destroyed.
138   int current_apps_page_;
139
140   // Cached bounds of |view_| for snapping back animation after over-scroll.
141   gfx::Rect view_bounds_;
142
143   // Whether should schedule snap back animation.
144   bool should_snap_back_;
145
146   DISALLOW_COPY_AND_ASSIGN(AppListController);
147 };
148
149 }  // namespace ash
150
151 #endif  // ASH_WM_APP_LIST_CONTROLLER_H_