Updating trunk VERSION from 2139.0 to 2140.0
[chromium-blink-merge.git] / ash / shell / window_watcher.cc
blobd7bc72683c307b2c46bcf19e2f0673f81e4b6bc3
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.
5 #include "ash/shell/window_watcher.h"
7 #include "ash/display/display_controller.h"
8 #include "ash/shelf/shelf.h"
9 #include "ash/shelf/shelf_item_delegate_manager.h"
10 #include "ash/shelf/shelf_model.h"
11 #include "ash/shelf/shelf_util.h"
12 #include "ash/shelf/shelf_widget.h"
13 #include "ash/shell.h"
14 #include "ash/shell/window_watcher_shelf_item_delegate.h"
15 #include "ash/shell_window_ids.h"
16 #include "ui/aura/window.h"
17 #include "ui/aura/window_event_dispatcher.h"
18 #include "ui/gfx/display.h"
20 namespace ash {
21 namespace shell {
23 class WindowWatcher::WorkspaceWindowWatcher : public aura::WindowObserver {
24 public:
25 explicit WorkspaceWindowWatcher(WindowWatcher* watcher) : watcher_(watcher) {
28 virtual ~WorkspaceWindowWatcher() {
31 virtual void OnWindowAdded(aura::Window* new_window) OVERRIDE {
32 new_window->AddObserver(watcher_);
35 virtual void OnWillRemoveWindow(aura::Window* window) OVERRIDE {
36 DCHECK(window->children().empty());
37 window->RemoveObserver(watcher_);
40 void RootWindowAdded(aura::Window* root) {
41 aura::Window* panel_container =
42 ash::Shell::GetContainer(root, kShellWindowId_PanelContainer);
43 panel_container->AddObserver(watcher_);
45 aura::Window* container =
46 Shelf::ForWindow(root)->shelf_widget()->window_container();
47 container->AddObserver(this);
48 for (size_t i = 0; i < container->children().size(); ++i)
49 container->children()[i]->AddObserver(watcher_);
52 void RootWindowRemoved(aura::Window* root) {
53 aura::Window* panel_container =
54 ash::Shell::GetContainer(root, kShellWindowId_PanelContainer);
55 panel_container->RemoveObserver(watcher_);
57 aura::Window* container =
58 Shelf::ForWindow(root)->shelf_widget()->window_container();
59 container->RemoveObserver(this);
60 for (size_t i = 0; i < container->children().size(); ++i)
61 container->children()[i]->RemoveObserver(watcher_);
64 private:
65 WindowWatcher* watcher_;
67 DISALLOW_COPY_AND_ASSIGN(WorkspaceWindowWatcher);
70 WindowWatcher::WindowWatcher() {
71 workspace_window_watcher_.reset(new WorkspaceWindowWatcher(this));
72 aura::Window::Windows root_windows = Shell::GetAllRootWindows();
73 for (aura::Window::Windows::iterator iter = root_windows.begin();
74 iter != root_windows.end(); ++ iter) {
75 workspace_window_watcher_->RootWindowAdded(*iter);
79 WindowWatcher::~WindowWatcher() {
80 aura::Window::Windows root_windows = Shell::GetAllRootWindows();
81 for (aura::Window::Windows::iterator iter = root_windows.begin();
82 iter != root_windows.end(); ++ iter) {
83 workspace_window_watcher_->RootWindowRemoved(*iter);
87 aura::Window* WindowWatcher::GetWindowByID(ash::ShelfID id) {
88 IDToWindow::const_iterator i = id_to_window_.find(id);
89 return i != id_to_window_.end() ? i->second : NULL;
92 // aura::WindowObserver overrides:
93 void WindowWatcher::OnWindowAdded(aura::Window* new_window) {
94 if (new_window->type() != ui::wm::WINDOW_TYPE_NORMAL &&
95 new_window->type() != ui::wm::WINDOW_TYPE_PANEL)
96 return;
98 static int image_count = 0;
99 ShelfModel* model = Shell::GetInstance()->shelf_model();
100 ShelfItem item;
101 item.type = new_window->type() == ui::wm::WINDOW_TYPE_PANEL
102 ? ash::TYPE_APP_PANEL
103 : ash::TYPE_PLATFORM_APP;
104 ash::ShelfID id = model->next_id();
105 id_to_window_[id] = new_window;
107 SkBitmap icon_bitmap;
108 icon_bitmap.allocN32Pixels(16, 16);
109 icon_bitmap.eraseARGB(255,
110 image_count == 0 ? 255 : 0,
111 image_count == 1 ? 255 : 0,
112 image_count == 2 ? 255 : 0);
113 image_count = (image_count + 1) % 3;
114 item.image = gfx::ImageSkia(gfx::ImageSkiaRep(icon_bitmap, 1.0f));
116 model->Add(item);
118 ShelfItemDelegateManager* manager =
119 Shell::GetInstance()->shelf_item_delegate_manager();
120 scoped_ptr<ShelfItemDelegate> delegate(
121 new WindowWatcherShelfItemDelegate(id, this));
122 manager->SetShelfItemDelegate(id, delegate.Pass());
123 SetShelfIDForWindow(id, new_window);
126 void WindowWatcher::OnWillRemoveWindow(aura::Window* window) {
127 for (IDToWindow::iterator i = id_to_window_.begin();
128 i != id_to_window_.end(); ++i) {
129 if (i->second == window) {
130 ShelfModel* model = Shell::GetInstance()->shelf_model();
131 int index = model->ItemIndexByID(i->first);
132 DCHECK_NE(-1, index);
133 model->RemoveItemAt(index);
134 id_to_window_.erase(i);
135 break;
140 void WindowWatcher::OnDisplayAdded(const gfx::Display& new_display) {
141 aura::Window* root = Shell::GetInstance()->display_controller()->
142 GetRootWindowForDisplayId(new_display.id());
143 workspace_window_watcher_->RootWindowAdded(root);
146 void WindowWatcher::OnDisplayRemoved(const gfx::Display& old_display) {
147 // All windows in the display has already been removed, so no need to
148 // remove observers.
151 void WindowWatcher::OnDisplayMetricsChanged(const gfx::Display&, uint32_t) {
154 } // namespace shell
155 } // namespace ash