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// Copyright 2016 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef ASH_SHELF_SHELF_CONTROLLER_H_
#define ASH_SHELF_SHELF_CONTROLLER_H_
#include <memory>
#include <string>
#include "ash/ash_export.h"
#include "ash/display/window_tree_host_manager.h"
#include "ash/public/cpp/session/session_observer.h"
#include "ash/public/cpp/shelf_model.h"
#include "ash/public/cpp/shelf_model_observer.h"
#include "base/memory/raw_ptr.h"
#include "base/scoped_observation.h"
#include "components/services/app_service/public/cpp/app_registry_cache.h"
#include "components/services/app_service/public/cpp/app_update.h"
#include "ui/display/display_observer.h"
class PrefChangeRegistrar;
class PrefRegistrySimple;
namespace display {
enum class TabletState;
} // namespace display
namespace ash {
class LauncherNudgeController;
// ShelfController owns the ShelfModel and manages shelf preferences.
// ChromeShelfController and related classes largely manage the ShelfModel.
class ASH_EXPORT ShelfController : public SessionObserver,
public display::DisplayObserver,
public WindowTreeHostManager::Observer,
public apps::AppRegistryCache::Observer,
public ShelfModelObserver {
public:
ShelfController();
ShelfController(const ShelfController&) = delete;
ShelfController& operator=(const ShelfController&) = delete;
~ShelfController() override;
// Creates `launcher_nudge_controller_` instance which needs AppListController
// instance to construct.
void Init();
// Removes observers from this object's dependencies.
void Shutdown();
static void RegisterProfilePrefs(PrefRegistrySimple* registry);
ShelfModel* model() { return &model_; }
LauncherNudgeController* launcher_nudge_controller() const {
return launcher_nudge_controller_.get();
}
private:
// SessionObserver:
void OnActiveUserPrefServiceChanged(PrefService* pref_service) override;
// display::DisplayObserver:
void OnDisplayTabletStateChanged(display::TabletState state) override;
// WindowTreeHostManager::Observer:
void OnDisplayConfigurationChanged() override;
// apps::AppRegistryCache::Observer:
void OnAppUpdate(const apps::AppUpdate& update) override;
void OnAppRegistryCacheWillBeDestroyed(
apps::AppRegistryCache* cache) override;
// ShelfModelObserver:
void ShelfItemAdded(int index) override;
// Updates whether an app notification badge is shown for the shelf items in
// the model.
void UpdateAppNotificationBadging();
// The shelf model shared by all shelf instances.
ShelfModel model_;
// The controller of the launcher nudge that animates the home button.
std::unique_ptr<LauncherNudgeController> launcher_nudge_controller_;
// Whether the pref for notification badging is enabled.
std::optional<bool> notification_badging_pref_enabled_;
// Observes user profile prefs for the shelf.
std::unique_ptr<PrefChangeRegistrar> pref_change_registrar_;
// Observed to update notification badging on shelf items. Also used to get
// initial notification badge information when shelf items are added.
raw_ptr<apps::AppRegistryCache, DanglingUntriaged> cache_ = nullptr;
base::ScopedObservation<apps::AppRegistryCache,
apps::AppRegistryCache::Observer>
app_registry_cache_observer_{this};
display::ScopedDisplayObserver display_observer_{this};
};
} // namespace ash
#endif // ASH_SHELF_SHELF_CONTROLLER_H_