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1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef CHROME_BROWSER_SPEECH_EXTENSION_API_TTS_ENGINE_EXTENSION_OBSERVER_H_ | 5 #ifndef CHROME_BROWSER_SPEECH_EXTENSION_API_TTS_ENGINE_EXTENSION_OBSERVER_H_ |
6 #define CHROME_BROWSER_SPEECH_EXTENSION_API_TTS_ENGINE_EXTENSION_OBSERVER_H_ | 6 #define CHROME_BROWSER_SPEECH_EXTENSION_API_TTS_ENGINE_EXTENSION_OBSERVER_H_ |
7 | 7 |
8 #include "base/scoped_observer.h" | 8 #include "base/scoped_observer.h" |
9 #include "components/keyed_service/core/keyed_service.h" | 9 #include "components/keyed_service/core/keyed_service.h" |
10 #include "extensions/browser/event_router.h" | 10 #include "extensions/browser/event_router.h" |
11 #include "extensions/browser/extension_registry.h" | 11 #include "extensions/browser/extension_registry.h" |
12 #include "extensions/browser/extension_registry_observer.h" | 12 #include "extensions/browser/extension_registry_observer.h" |
13 | 13 |
14 class Profile; | 14 class Profile; |
15 | 15 |
16 // Profile-keyed class that observes the extension registry to determine load of | 16 // Profile-keyed class that observes the extension registry to determine load of |
17 // extension-based tts engines. | 17 // extension-based tts engines. |
18 class TtsEngineExtensionObserver | 18 class TtsEngineExtensionObserver |
19 : public KeyedService, | 19 : public KeyedService, |
20 public extensions::EventRouter::Observer, | 20 public extensions::EventRouter::Observer, |
21 public extensions::ExtensionRegistryObserver { | 21 public extensions::ExtensionRegistryObserver { |
22 public: | 22 public: |
23 static TtsEngineExtensionObserver* GetInstance(Profile* profile); | 23 static TtsEngineExtensionObserver* GetInstance(Profile* profile); |
24 | 24 |
25 // Returns if this observer saw the given extension load. Adds |extension_id| | 25 // Returns if this observer saw the given extension load. Adds |extension_id| |
26 // as loaded immediately if |update| is set to true. | 26 // as loaded immediately if |update| is set to true. |
27 bool SawExtensionLoad(const std::string& extension_id, bool update); | 27 bool SawExtensionLoad(const std::string& extension_id, bool update); |
28 | 28 |
29 // Implementation of KeyedService. | 29 // Implementation of KeyedService. |
30 virtual void Shutdown() OVERRIDE; | 30 virtual void Shutdown() override; |
31 | 31 |
32 // Implementation of extensions::EventRouter::Observer. | 32 // Implementation of extensions::EventRouter::Observer. |
33 virtual void OnListenerAdded( | 33 virtual void OnListenerAdded( |
34 const extensions::EventListenerInfo& details) OVERRIDE; | 34 const extensions::EventListenerInfo& details) override; |
35 | 35 |
36 // extensions::ExtensionRegistryObserver overrides. | 36 // extensions::ExtensionRegistryObserver overrides. |
37 virtual void OnExtensionUnloaded( | 37 virtual void OnExtensionUnloaded( |
38 content::BrowserContext* browser_context, | 38 content::BrowserContext* browser_context, |
39 const extensions::Extension* extension, | 39 const extensions::Extension* extension, |
40 extensions::UnloadedExtensionInfo::Reason reason) OVERRIDE; | 40 extensions::UnloadedExtensionInfo::Reason reason) override; |
41 | 41 |
42 private: | 42 private: |
43 explicit TtsEngineExtensionObserver(Profile* profile); | 43 explicit TtsEngineExtensionObserver(Profile* profile); |
44 virtual ~TtsEngineExtensionObserver(); | 44 virtual ~TtsEngineExtensionObserver(); |
45 | 45 |
46 bool IsLoadedTtsEngine(const std::string& extension_id); | 46 bool IsLoadedTtsEngine(const std::string& extension_id); |
47 | 47 |
48 ScopedObserver<extensions::ExtensionRegistry, | 48 ScopedObserver<extensions::ExtensionRegistry, |
49 extensions::ExtensionRegistryObserver> | 49 extensions::ExtensionRegistryObserver> |
50 extension_registry_observer_; | 50 extension_registry_observer_; |
51 | 51 |
52 Profile* profile_; | 52 Profile* profile_; |
53 | 53 |
54 std::set<std::string> engine_extension_ids_; | 54 std::set<std::string> engine_extension_ids_; |
55 | 55 |
56 friend class TtsEngineExtensionObserverFactory; | 56 friend class TtsEngineExtensionObserverFactory; |
57 | 57 |
58 DISALLOW_COPY_AND_ASSIGN(TtsEngineExtensionObserver); | 58 DISALLOW_COPY_AND_ASSIGN(TtsEngineExtensionObserver); |
59 }; | 59 }; |
60 | 60 |
61 #endif // CHROME_BROWSER_SPEECH_EXTENSION_API_TTS_ENGINE_EXTENSION_OBSERVER_H_ | 61 #endif // CHROME_BROWSER_SPEECH_EXTENSION_API_TTS_ENGINE_EXTENSION_OBSERVER_H_ |
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