| // Copyright 2014 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 CHROME_BROWSER_SPEECH_EXTENSION_API_TTS_ENGINE_EXTENSION_OBSERVER_CHROMEOS_H_ |
| #define CHROME_BROWSER_SPEECH_EXTENSION_API_TTS_ENGINE_EXTENSION_OBSERVER_CHROMEOS_H_ |
| |
| #include "base/macros.h" |
| #include "base/scoped_observer.h" |
| #include "chrome/browser/chromeos/accessibility/accessibility_manager.h" |
| #include "chromeos/services/tts/public/mojom/tts_service.mojom.h" |
| #include "components/keyed_service/core/keyed_service.h" |
| #include "content/public/browser/audio_service.h" |
| #include "extensions/browser/event_router.h" |
| #include "extensions/browser/extension_registry.h" |
| #include "extensions/browser/extension_registry_observer.h" |
| |
| class Profile; |
| |
| // Profile-keyed class that observes the extension registry to determine load of |
| // extension-based tts engines. |
| class TtsEngineExtensionObserverChromeOS |
| : public KeyedService, |
| public extensions::EventRouter::Observer, |
| public extensions::ExtensionRegistryObserver { |
| public: |
| static TtsEngineExtensionObserverChromeOS* GetInstance(Profile* profile); |
| |
| // Gets the currently loaded TTS extension ids. |
| const std::set<std::string>& engine_extension_ids() { |
| return engine_extension_ids_; |
| } |
| |
| Profile* profile() { return profile_; } |
| |
| void BindTtsStreamFactory( |
| mojo::PendingReceiver<chromeos::tts::mojom::TtsStreamFactory> receiver); |
| |
| // Implementation of KeyedService. |
| void Shutdown() override; |
| |
| // Implementation of extensions::EventRouter::Observer. |
| void OnListenerAdded(const extensions::EventListenerInfo& details) override; |
| |
| // extensions::ExtensionRegistryObserver overrides. |
| void OnExtensionLoaded(content::BrowserContext* browser_context, |
| const extensions::Extension* extension) override; |
| void OnExtensionUnloaded(content::BrowserContext* browser_context, |
| const extensions::Extension* extension, |
| extensions::UnloadedExtensionReason reason) override; |
| |
| private: |
| explicit TtsEngineExtensionObserverChromeOS(Profile* profile); |
| ~TtsEngineExtensionObserverChromeOS() override; |
| |
| bool IsLoadedTtsEngine(const std::string& extension_id); |
| |
| void OnAccessibilityStatusChanged( |
| const chromeos::AccessibilityStatusEventDetails& details); |
| |
| ScopedObserver<extensions::ExtensionRegistry, |
| extensions::ExtensionRegistryObserver> |
| extension_registry_observer_; |
| |
| Profile* profile_; |
| |
| std::set<std::string> engine_extension_ids_; |
| |
| std::unique_ptr<chromeos::AccessibilityStatusSubscription> |
| accessibility_status_subscription_; |
| |
| mojo::Remote<chromeos::tts::mojom::TtsService> tts_service_; |
| |
| friend class TtsEngineExtensionObserverChromeOSFactory; |
| |
| DISALLOW_COPY_AND_ASSIGN(TtsEngineExtensionObserverChromeOS); |
| }; |
| |
| #endif // CHROME_BROWSER_SPEECH_EXTENSION_API_TTS_ENGINE_EXTENSION_OBSERVER_CHROMEOS_H_ |