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// Copyright 2018 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_ASSISTANT_ASSISTANT_CONTROLLER_H_
#define ASH_ASSISTANT_ASSISTANT_CONTROLLER_H_
#include <map>
#include <memory>
#include <string>
#include <vector>
#include "ash/accessibility/accessibility_observer.h"
#include "ash/ash_export.h"
#include "ash/assistant/assistant_alarm_timer_controller.h"
#include "ash/assistant/assistant_cache_controller.h"
#include "ash/assistant/assistant_controller_observer.h"
#include "ash/assistant/assistant_interaction_controller.h"
#include "ash/assistant/assistant_notification_controller.h"
#include "ash/assistant/assistant_screen_context_controller.h"
#include "ash/assistant/assistant_setup_controller.h"
#include "ash/assistant/assistant_ui_controller.h"
#include "ash/assistant/assistant_view_delegate_impl.h"
#include "ash/assistant/ui/assistant_view_delegate.h"
#include "ash/public/cpp/assistant/default_voice_interaction_observer.h"
#include "ash/public/interfaces/assistant_controller.mojom.h"
#include "ash/public/interfaces/assistant_image_downloader.mojom.h"
#include "ash/public/interfaces/assistant_setup.mojom.h"
#include "ash/public/interfaces/assistant_volume_control.mojom.h"
#include "ash/public/interfaces/voice_interaction_controller.mojom.h"
#include "base/macros.h"
#include "base/memory/weak_ptr.h"
#include "base/observer_list.h"
#include "chromeos/audio/cras_audio_handler.h"
#include "chromeos/services/assistant/public/mojom/assistant.mojom.h"
#include "mojo/public/cpp/bindings/binding_set.h"
#include "mojo/public/cpp/bindings/interface_ptr_set.h"
#include "mojo/public/cpp/bindings/pending_receiver.h"
#include "services/content/public/mojom/navigable_contents_factory.mojom.h"
class PrefRegistrySimple;
namespace ash {
class AssistantAlarmTimerController;
class AssistantCacheController;
class AssistantInteractionController;
class AssistantNotificationController;
class AssistantScreenContextController;
class AssistantSetupController;
class AssistantUiController;
class ASH_EXPORT AssistantController
: public mojom::AssistantController,
public AssistantControllerObserver,
public DefaultVoiceInteractionObserver,
public mojom::AssistantVolumeControl,
public chromeos::CrasAudioHandler::AudioObserver,
public AccessibilityObserver {
public:
AssistantController();
~AssistantController() override;
static void RegisterProfilePrefs(PrefRegistrySimple* registry);
void BindRequest(mojom::AssistantControllerRequest request);
void BindRequest(mojom::AssistantVolumeControlRequest request);
// Adds/removes the specified |observer|.
void AddObserver(AssistantControllerObserver* observer);
void RemoveObserver(AssistantControllerObserver* observer);
// Downloads the image found at the specified |url|. On completion, the
// supplied |callback| will be run with the downloaded image. If the download
// attempt is unsuccessful, a NULL image is returned.
void DownloadImage(
const GURL& url,
mojom::AssistantImageDownloader::DownloadCallback callback);
// mojom::AssistantController:
// TODO(updowndota): Refactor Set() calls to use a factory pattern.
void SetAssistant(
chromeos::assistant::mojom::AssistantPtr assistant) override;
void SetAssistantImageDownloader(
mojom::AssistantImageDownloaderPtr assistant_image_downloader) override;
void OpenAssistantSettings() override;
void StartSpeakerIdEnrollmentFlow() override;
void SendAssistantFeedback(bool assistant_debug_info_allowed,
const std::string& feedback_description,
const std::string& screenshot_png) override;
// AssistantControllerObserver:
void OnDeepLinkReceived(
assistant::util::DeepLinkType type,
const std::map<std::string, std::string>& params) override;
// mojom::VolumeControl:
void SetVolume(int volume, bool user_initiated) override;
void SetMuted(bool muted) override;
void AddVolumeObserver(mojom::VolumeObserverPtr observer) override;
// chromeos::CrasAudioHandler::AudioObserver:
void OnOutputMuteChanged(bool mute_on) override;
void OnOutputNodeVolumeChanged(uint64_t node, int volume) override;
// AccessibilityObserver:
void OnAccessibilityStatusChanged() override;
// Opens the specified |url| in a new browser tab. Special handling is applied
// to deep links which may cause deviation from this behavior.
void OpenUrl(const GURL& url, bool from_server = false);
// Acquires a NavigableContentsFactory from the Content Service to allow
// Assistant to display embedded web contents.
void GetNavigableContentsFactory(
mojo::PendingReceiver<content::mojom::NavigableContentsFactory> receiver);
AssistantAlarmTimerController* alarm_timer_controller() {
return &assistant_alarm_timer_controller_;
}
AssistantCacheController* cache_controller() {
return &assistant_cache_controller_;
}
AssistantInteractionController* interaction_controller() {
return &assistant_interaction_controller_;
}
AssistantNotificationController* notification_controller() {
return &assistant_notification_controller_;
}
AssistantScreenContextController* screen_context_controller() {
return &assistant_screen_context_controller_;
}
AssistantSetupController* setup_controller() {
return &assistant_setup_controller_;
}
AssistantUiController* ui_controller() { return &assistant_ui_controller_; }
AssistantViewDelegate* view_delegate() { return &view_delegate_; }
base::WeakPtr<AssistantController> GetWeakPtr();
private:
void NotifyConstructed();
void NotifyDestroying();
void NotifyDeepLinkReceived(const GURL& deep_link);
void NotifyUrlOpened(const GURL& url, bool from_server);
// mojom::VoiceInteractionObserver:
void OnVoiceInteractionStatusChanged(
mojom::VoiceInteractionState state) override;
// The observer list should be initialized early so that sub-controllers may
// register as observers during their construction.
base::ObserverList<AssistantControllerObserver> observers_;
mojo::BindingSet<mojom::AssistantController> assistant_controller_bindings_;
mojo::Binding<mojom::AssistantVolumeControl>
assistant_volume_control_binding_;
mojo::InterfacePtrSet<mojom::VolumeObserver> volume_observer_;
chromeos::assistant::mojom::AssistantPtr assistant_;
mojom::AssistantImageDownloaderPtr assistant_image_downloader_;
// Assistant sub-controllers.
AssistantAlarmTimerController assistant_alarm_timer_controller_;
AssistantCacheController assistant_cache_controller_;
AssistantInteractionController assistant_interaction_controller_;
AssistantNotificationController assistant_notification_controller_;
AssistantScreenContextController assistant_screen_context_controller_;
AssistantSetupController assistant_setup_controller_;
AssistantUiController assistant_ui_controller_;
AssistantViewDelegateImpl view_delegate_;
base::WeakPtrFactory<AssistantController> weak_factory_;
DISALLOW_COPY_AND_ASSIGN(AssistantController);
};
} // namespace ash
#endif // ASH_ASSISTANT_ASSISTANT_CONTROLLER_H_