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
Shelf(ShelfModel * shelf_model,ShelfDelegate * shelf_delegate,ShelfWidget * shelf_widget)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
~Shelf()58 Shelf::~Shelf() {
59 delegate_->OnShelfDestroyed(this);
60 }
61
62 // static
ForPrimaryDisplay()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
ForWindow(aura::Window * window)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
SetAlignment(ShelfAlignment alignment)75 void Shelf::SetAlignment(ShelfAlignment alignment) {
76 alignment_ = alignment;
77 shelf_view_->OnShelfAlignmentChanged();
78 // ShelfLayoutManager will resize the shelf.
79 }
80
GetScreenBoundsOfItemIconForWindow(const aura::Window * window)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
UpdateIconPositionForWindow(aura::Window * window)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
ActivateShelfItem(int index)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
CycleWindowLinear(CycleDirection direction)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
AddIconObserver(ShelfIconObserver * observer)122 void Shelf::AddIconObserver(ShelfIconObserver* observer) {
123 shelf_view_->AddIconObserver(observer);
124 }
125
RemoveIconObserver(ShelfIconObserver * observer)126 void Shelf::RemoveIconObserver(ShelfIconObserver* observer) {
127 shelf_view_->RemoveIconObserver(observer);
128 }
129
IsShowingMenu() const130 bool Shelf::IsShowingMenu() const {
131 return shelf_view_->IsShowingMenu();
132 }
133
IsShowingOverflowBubble() const134 bool Shelf::IsShowingOverflowBubble() const {
135 return shelf_view_->IsShowingOverflowBubble();
136 }
137
SetVisible(bool visible) const138 void Shelf::SetVisible(bool visible) const {
139 shelf_view_->SetVisible(visible);
140 }
141
IsVisible() const142 bool Shelf::IsVisible() const {
143 return shelf_view_->visible();
144 }
145
SchedulePaint()146 void Shelf::SchedulePaint() {
147 shelf_view_->SchedulePaintForAllButtons();
148 }
149
GetAppListButtonView() const150 views::View* Shelf::GetAppListButtonView() const {
151 return shelf_view_->GetAppListButtonView();
152 }
153
LaunchAppIndexAt(int item_index)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
SetShelfViewBounds(gfx::Rect bounds)179 void Shelf::SetShelfViewBounds(gfx::Rect bounds) {
180 shelf_view_->SetBoundsRect(bounds);
181 }
182
GetShelfViewBounds() const183 gfx::Rect Shelf::GetShelfViewBounds() const {
184 return shelf_view_->bounds();
185 }
186
GetVisibleItemsBoundsInScreen() const187 gfx::Rect Shelf::GetVisibleItemsBoundsInScreen() const {
188 return shelf_view_->GetVisibleItemsBoundsInScreen();
189 }
190
GetDragAndDropHostForAppList()191 app_list::ApplicationDragAndDropHost* Shelf::GetDragAndDropHostForAppList() {
192 return shelf_view_;
193 }
194
195 } // namespace ash
196