0a02248586537f35ddb025793458a12f53c72db9
[platform/framework/web/crosswalk.git] / src / ash / shelf / shelf.cc
1 // Copyright 2013 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 #include "ash/shelf/shelf.h"
6
7 #include <algorithm>
8 #include <cmath>
9
10 #include "ash/focus_cycler.h"
11 #include "ash/root_window_controller.h"
12 #include "ash/screen_util.h"
13 #include "ash/shelf/shelf_delegate.h"
14 #include "ash/shelf/shelf_item_delegate.h"
15 #include "ash/shelf/shelf_item_delegate_manager.h"
16 #include "ash/shelf/shelf_layout_manager.h"
17 #include "ash/shelf/shelf_model.h"
18 #include "ash/shelf/shelf_navigator.h"
19 #include "ash/shelf/shelf_util.h"
20 #include "ash/shelf/shelf_view.h"
21 #include "ash/shelf/shelf_widget.h"
22 #include "ash/shell.h"
23 #include "ash/shell_delegate.h"
24 #include "ash/shell_window_ids.h"
25 #include "ash/wm/window_properties.h"
26 #include "ui/aura/window.h"
27 #include "ui/aura/window_event_dispatcher.h"
28 #include "ui/aura/window_observer.h"
29 #include "ui/compositor/layer.h"
30 #include "ui/gfx/canvas.h"
31 #include "ui/gfx/image/image.h"
32 #include "ui/gfx/image/image_skia_operations.h"
33 #include "ui/gfx/skbitmap_operations.h"
34 #include "ui/views/accessible_pane_view.h"
35 #include "ui/views/widget/widget.h"
36 #include "ui/views/widget/widget_delegate.h"
37 #include "ui/wm/public/activation_client.h"
38
39 namespace ash {
40
41 const char Shelf::kNativeViewName[] = "ShelfView";
42
43 Shelf::Shelf(ShelfModel* shelf_model,
44              ShelfDelegate* shelf_delegate,
45              ShelfWidget* shelf_widget)
46     : shelf_view_(NULL),
47       alignment_(shelf_widget->GetAlignment()),
48       delegate_(shelf_delegate),
49       shelf_widget_(shelf_widget) {
50   shelf_view_ = new ShelfView(
51       shelf_model, delegate_, shelf_widget_->shelf_layout_manager());
52   shelf_view_->Init();
53   shelf_widget_->GetContentsView()->AddChildView(shelf_view_);
54   shelf_widget_->GetNativeView()->SetName(kNativeViewName);
55   delegate_->OnShelfCreated(this);
56 }
57
58 Shelf::~Shelf() {
59   delegate_->OnShelfDestroyed(this);
60 }
61
62 // static
63 Shelf* Shelf::ForPrimaryDisplay() {
64   ShelfWidget* shelf_widget =
65       RootWindowController::ForShelf(Shell::GetPrimaryRootWindow())->shelf();
66   return shelf_widget ? shelf_widget->shelf() : NULL;
67 }
68
69 // static
70 Shelf* Shelf::ForWindow(aura::Window* window) {
71   ShelfWidget* shelf_widget = RootWindowController::ForShelf(window)->shelf();
72   return shelf_widget ? shelf_widget->shelf() : NULL;
73 }
74
75 void Shelf::SetAlignment(ShelfAlignment alignment) {
76   alignment_ = alignment;
77   shelf_view_->OnShelfAlignmentChanged();
78   // ShelfLayoutManager will resize the shelf.
79 }
80
81 gfx::Rect Shelf::GetScreenBoundsOfItemIconForWindow(
82     const aura::Window* window) {
83   ShelfID id = GetShelfIDForWindow(window);
84   gfx::Rect bounds(shelf_view_->GetIdealBoundsOfItemIcon(id));
85   gfx::Point screen_origin;
86   views::View::ConvertPointToScreen(shelf_view_, &screen_origin);
87   return gfx::Rect(screen_origin.x() + bounds.x(),
88                    screen_origin.y() + bounds.y(),
89                    bounds.width(),
90                    bounds.height());
91 }
92
93 void Shelf::UpdateIconPositionForWindow(aura::Window* window) {
94   shelf_view_->UpdatePanelIconPosition(
95       GetShelfIDForWindow(window),
96       ScreenUtil::ConvertRectFromScreen(
97           shelf_widget()->GetNativeView(),
98           window->GetBoundsInScreen()).CenterPoint());
99 }
100
101 void Shelf::ActivateShelfItem(int index) {
102   // We pass in a keyboard event which will then trigger a switch to the
103   // next item if the current one is already active.
104   ui::KeyEvent event(ui::ET_KEY_RELEASED,
105                      ui::VKEY_UNKNOWN,  // The actual key gets ignored.
106                      ui::EF_NONE);
107
108   const ShelfItem& item = shelf_view_->model()->items()[index];
109   ShelfItemDelegate* item_delegate =
110       Shell::GetInstance()->shelf_item_delegate_manager()->GetShelfItemDelegate(
111           item.id);
112   item_delegate->ItemSelected(event);
113 }
114
115 void Shelf::CycleWindowLinear(CycleDirection direction) {
116   int item_index = GetNextActivatedItemIndex(
117       *(shelf_view_->model()), direction);
118   if (item_index >= 0)
119     ActivateShelfItem(item_index);
120 }
121
122 void Shelf::AddIconObserver(ShelfIconObserver* observer) {
123   shelf_view_->AddIconObserver(observer);
124 }
125
126 void Shelf::RemoveIconObserver(ShelfIconObserver* observer) {
127   shelf_view_->RemoveIconObserver(observer);
128 }
129
130 bool Shelf::IsShowingMenu() const {
131   return shelf_view_->IsShowingMenu();
132 }
133
134 bool Shelf::IsShowingOverflowBubble() const {
135   return shelf_view_->IsShowingOverflowBubble();
136 }
137
138 void Shelf::SetVisible(bool visible) const {
139   shelf_view_->SetVisible(visible);
140 }
141
142 bool Shelf::IsVisible() const {
143   return shelf_view_->visible();
144 }
145
146 void Shelf::SchedulePaint() {
147   shelf_view_->SchedulePaintForAllButtons();
148 }
149
150 views::View* Shelf::GetAppListButtonView() const {
151   return shelf_view_->GetAppListButtonView();
152 }
153
154 void Shelf::LaunchAppIndexAt(int item_index) {
155   ShelfModel* shelf_model = shelf_view_->model();
156   const ShelfItems& items = shelf_model->items();
157   int item_count = shelf_model->item_count();
158   int indexes_left = item_index >= 0 ? item_index : item_count;
159   int found_index = -1;
160
161   // Iterating until we have hit the index we are interested in which
162   // is true once indexes_left becomes negative.
163   for (int i = 0; i < item_count && indexes_left >= 0; i++) {
164     if (items[i].type != TYPE_APP_LIST) {
165       found_index = i;
166       indexes_left--;
167     }
168   }
169
170   // There are two ways how found_index can be valid: a.) the nth item was
171   // found (which is true when indexes_left is -1) or b.) the last item was
172   // requested (which is true when index was passed in as a negative number).
173   if (found_index >= 0 && (indexes_left == -1 || item_index < 0)) {
174     // Then set this one as active (or advance to the next item of its kind).
175     ActivateShelfItem(found_index);
176   }
177 }
178
179 void Shelf::SetShelfViewBounds(gfx::Rect bounds) {
180   shelf_view_->SetBoundsRect(bounds);
181 }
182
183 gfx::Rect Shelf::GetShelfViewBounds() const {
184   return shelf_view_->bounds();
185 }
186
187 gfx::Rect Shelf::GetVisibleItemsBoundsInScreen() const {
188   return shelf_view_->GetVisibleItemsBoundsInScreen();
189 }
190
191 app_list::ApplicationDragAndDropHost* Shelf::GetDragAndDropHostForAppList() {
192   return shelf_view_;
193 }
194
195 }  // namespace ash