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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "ash/shell/window_watcher.h"
#include "ash/display/display_controller.h"
#include "ash/shelf/shelf.h"
#include "ash/shelf/shelf_item_delegate_manager.h"
#include "ash/shelf/shelf_model.h"
#include "ash/shelf/shelf_util.h"
#include "ash/shelf/shelf_widget.h"
#include "ash/shell.h"
#include "ash/shell/window_watcher_shelf_item_delegate.h"
#include "ash/shell_window_ids.h"
#include "ui/aura/root_window.h"
#include "ui/aura/window.h"
#include "ui/gfx/display.h"
namespace ash {
namespace shell {
class WindowWatcher::WorkspaceWindowWatcher : public aura::WindowObserver {
public:
explicit WorkspaceWindowWatcher(WindowWatcher* watcher) : watcher_(watcher) {
}
virtual ~WorkspaceWindowWatcher() {
}
virtual void OnWindowAdded(aura::Window* new_window) OVERRIDE {
new_window->AddObserver(watcher_);
}
virtual void OnWillRemoveWindow(aura::Window* window) OVERRIDE {
DCHECK(window->children().empty());
window->RemoveObserver(watcher_);
}
void RootWindowAdded(aura::Window* root) {
aura::Window* panel_container = ash::Shell::GetContainer(
root,
internal::kShellWindowId_PanelContainer);
panel_container->AddObserver(watcher_);
aura::Window* container =
Shelf::ForWindow(root)->shelf_widget()->window_container();
container->AddObserver(this);
for (size_t i = 0; i < container->children().size(); ++i)
container->children()[i]->AddObserver(watcher_);
}
void RootWindowRemoved(aura::Window* root) {
aura::Window* panel_container = ash::Shell::GetContainer(
root,
internal::kShellWindowId_PanelContainer);
panel_container->RemoveObserver(watcher_);
aura::Window* container =
Shelf::ForWindow(root)->shelf_widget()->window_container();
container->RemoveObserver(this);
for (size_t i = 0; i < container->children().size(); ++i)
container->children()[i]->RemoveObserver(watcher_);
}
private:
WindowWatcher* watcher_;
DISALLOW_COPY_AND_ASSIGN(WorkspaceWindowWatcher);
};
WindowWatcher::WindowWatcher() {
workspace_window_watcher_.reset(new WorkspaceWindowWatcher(this));
aura::Window::Windows root_windows = Shell::GetAllRootWindows();
for (aura::Window::Windows::iterator iter = root_windows.begin();
iter != root_windows.end(); ++ iter) {
workspace_window_watcher_->RootWindowAdded(*iter);
}
}
WindowWatcher::~WindowWatcher() {
aura::Window::Windows root_windows = Shell::GetAllRootWindows();
for (aura::Window::Windows::iterator iter = root_windows.begin();
iter != root_windows.end(); ++ iter) {
workspace_window_watcher_->RootWindowRemoved(*iter);
}
}
aura::Window* WindowWatcher::GetWindowByID(ash::ShelfID id) {
IDToWindow::const_iterator i = id_to_window_.find(id);
return i != id_to_window_.end() ? i->second : NULL;
}
// aura::WindowObserver overrides:
void WindowWatcher::OnWindowAdded(aura::Window* new_window) {
if (new_window->type() != ui::wm::WINDOW_TYPE_NORMAL &&
new_window->type() != ui::wm::WINDOW_TYPE_PANEL)
return;
static int image_count = 0;
ShelfModel* model = Shell::GetInstance()->shelf_model();
ShelfItem item;
item.type = new_window->type() == ui::wm::WINDOW_TYPE_PANEL
? ash::TYPE_APP_PANEL
: ash::TYPE_PLATFORM_APP;
ash::ShelfID id = model->next_id();
id_to_window_[id] = new_window;
SkBitmap icon_bitmap;
icon_bitmap.setConfig(SkBitmap::kARGB_8888_Config, 16, 16);
icon_bitmap.allocPixels();
icon_bitmap.eraseARGB(255,
image_count == 0 ? 255 : 0,
image_count == 1 ? 255 : 0,
image_count == 2 ? 255 : 0);
image_count = (image_count + 1) % 3;
item.image = gfx::ImageSkia(gfx::ImageSkiaRep(icon_bitmap, 1.0f));
model->Add(item);
ShelfItemDelegateManager* manager =
Shell::GetInstance()->shelf_item_delegate_manager();
scoped_ptr<ShelfItemDelegate> delegate(
new WindowWatcherShelfItemDelegate(id, this));
manager->SetShelfItemDelegate(id, delegate.Pass());
SetShelfIDForWindow(id, new_window);
}
void WindowWatcher::OnWillRemoveWindow(aura::Window* window) {
for (IDToWindow::iterator i = id_to_window_.begin();
i != id_to_window_.end(); ++i) {
if (i->second == window) {
ShelfModel* model = Shell::GetInstance()->shelf_model();
int index = model->ItemIndexByID(i->first);
DCHECK_NE(-1, index);
model->RemoveItemAt(index);
id_to_window_.erase(i);
break;
}
}
}
void WindowWatcher::OnDisplayBoundsChanged(const gfx::Display& display) {
}
void WindowWatcher::OnDisplayAdded(const gfx::Display& new_display) {
aura::Window* root = Shell::GetInstance()->display_controller()->
GetRootWindowForDisplayId(new_display.id());
workspace_window_watcher_->RootWindowAdded(root);
}
void WindowWatcher::OnDisplayRemoved(const gfx::Display& old_display) {
// All windows in the display has already been removed, so no need to
// remove observers.
}
} // namespace shell
} // namespace ash
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