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// Copyright 2013 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.
#ifndef ASH_SHELF_SHELF_WINDOW_WATCHER_H_
#define ASH_SHELF_SHELF_WINDOW_WATCHER_H_
#include "ash/shelf/scoped_observer_with_duplicated_sources.h"
#include "base/basictypes.h"
#include "base/compiler_specific.h"
#include "base/memory/scoped_ptr.h"
#include "base/scoped_observer.h"
#include "ui/aura/client/activation_change_observer.h"
#include "ui/aura/window_observer.h"
#include "ui/gfx/display_observer.h"
namespace aura {
class Window;
namespace client {
class ActivationClient;
}
} // namespace aura
namespace ash {
class ShelfModel;
class ShelfItemDelegateManager;
namespace internal {
// ShelfWindowWatcher creates and handles a LauncherItem for windows that have
// a LauncherItemDetails property in the default container.
class ShelfWindowWatcher : public aura::client::ActivationChangeObserver,
public aura::WindowObserver,
public gfx::DisplayObserver {
public:
ShelfWindowWatcher(ShelfModel* model,
ShelfItemDelegateManager* item_delegate_manager);
virtual ~ShelfWindowWatcher();
private:
class RootWindowObserver : public aura::WindowObserver {
public:
explicit RootWindowObserver(ShelfWindowWatcher* window_watcher);
virtual ~RootWindowObserver();
private:
// aura::WindowObserver overrides:
virtual void OnWindowDestroying(aura::Window* window) OVERRIDE;
// Owned by Shell.
ShelfWindowWatcher* window_watcher_;
DISALLOW_COPY_AND_ASSIGN(RootWindowObserver);
};
// Creates a LauncherItem for |window| that has LauncherItemDetails.
void AddLauncherItem(aura::Window* window);
// Removes a LauncherItem for |window|.
void RemoveLauncherItem(aura::Window* window);
// Adds observer to default container and ActivationClient of |root_window|.
void OnRootWindowAdded(aura::Window* root_window);
// Removes observer from ActivationClient of |root_window|.
void OnRootWindowRemoved(aura::Window* root_window);
// Updates the status of LauncherItem for |window|.
void UpdateLauncherItemStatus(aura::Window* window, bool is_active);
// Returns the index of LauncherItem associated with |window|.
int GetLauncherItemIndexForWindow(aura::Window* window) const;
// aura::client::ActivationChangeObserver overrides:
virtual void OnWindowActivated(aura::Window* gained_active,
aura::Window* lost_active) OVERRIDE;
// aura::WindowObserver overrides:
virtual void OnWindowAdded(aura::Window* window) OVERRIDE;
virtual void OnWillRemoveWindow(aura::Window* window) OVERRIDE;
virtual void OnWindowDestroying(aura::Window* window) OVERRIDE;
virtual void OnWindowPropertyChanged(aura::Window* window,
const void* key,
intptr_t old) OVERRIDE;
// gfx::DisplayObserver overrides:
virtual void OnDisplayBoundsChanged(const gfx::Display& display) OVERRIDE;
virtual void OnDisplayAdded(const gfx::Display& display) OVERRIDE;
virtual void OnDisplayRemoved(const gfx::Display& old_display) OVERRIDE;
// Owned by Shell.
ShelfModel* model_;
ShelfItemDelegateManager* item_delegate_manager_;
RootWindowObserver root_window_observer_;
// Holds all observed windows.
ScopedObserver<aura::Window, aura::WindowObserver> observed_windows_;
// Holds all observed root windows.
ScopedObserver<aura::Window, aura::WindowObserver> observed_root_windows_;
// Holds all observed activation clients.
ScopedObserverWithDuplicatedSources<aura::client::ActivationClient,
aura::client::ActivationChangeObserver> observed_activation_clients_;
DISALLOW_COPY_AND_ASSIGN(ShelfWindowWatcher);
};
} // namespace internal
} // namespace ash
#endif // ASH_SHELF_SHELF_WINDOW_WATCHER_H_
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