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| 1 // Copyright 2013 The Chromium Authors. All rights reserved. | 1 // Copyright 2013 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_EXTENSIONS_API_WEBRTC_AUDIO_PRIVATE_WEBRTC_AUDIO_PRIVATE_
API_H_ | 5 #ifndef CHROME_BROWSER_EXTENSIONS_API_WEBRTC_AUDIO_PRIVATE_WEBRTC_AUDIO_PRIVATE_
API_H_ |
| 6 #define CHROME_BROWSER_EXTENSIONS_API_WEBRTC_AUDIO_PRIVATE_WEBRTC_AUDIO_PRIVATE_
API_H_ | 6 #define CHROME_BROWSER_EXTENSIONS_API_WEBRTC_AUDIO_PRIVATE_WEBRTC_AUDIO_PRIVATE_
API_H_ |
| 7 | 7 |
| 8 #include "base/memory/ref_counted.h" | 8 #include "base/memory/ref_counted.h" |
| 9 #include "base/system_monitor/system_monitor.h" | 9 #include "base/system_monitor/system_monitor.h" |
| 10 #include "chrome/browser/extensions/chrome_extension_function.h" | 10 #include "chrome/browser/extensions/chrome_extension_function.h" |
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| 22 | 22 |
| 23 // Listens for device changes and forwards as an extension event. | 23 // Listens for device changes and forwards as an extension event. |
| 24 class WebrtcAudioPrivateEventService | 24 class WebrtcAudioPrivateEventService |
| 25 : public BrowserContextKeyedAPI, | 25 : public BrowserContextKeyedAPI, |
| 26 public base::SystemMonitor::DevicesChangedObserver { | 26 public base::SystemMonitor::DevicesChangedObserver { |
| 27 public: | 27 public: |
| 28 explicit WebrtcAudioPrivateEventService(content::BrowserContext* context); | 28 explicit WebrtcAudioPrivateEventService(content::BrowserContext* context); |
| 29 virtual ~WebrtcAudioPrivateEventService(); | 29 virtual ~WebrtcAudioPrivateEventService(); |
| 30 | 30 |
| 31 // BrowserContextKeyedAPI implementation. | 31 // BrowserContextKeyedAPI implementation. |
| 32 virtual void Shutdown() OVERRIDE; | 32 virtual void Shutdown() override; |
| 33 static BrowserContextKeyedAPIFactory<WebrtcAudioPrivateEventService>* | 33 static BrowserContextKeyedAPIFactory<WebrtcAudioPrivateEventService>* |
| 34 GetFactoryInstance(); | 34 GetFactoryInstance(); |
| 35 static const char* service_name(); | 35 static const char* service_name(); |
| 36 | 36 |
| 37 // base::SystemMonitor::DevicesChangedObserver implementation. | 37 // base::SystemMonitor::DevicesChangedObserver implementation. |
| 38 virtual void OnDevicesChanged( | 38 virtual void OnDevicesChanged( |
| 39 base::SystemMonitor::DeviceType device_type) OVERRIDE; | 39 base::SystemMonitor::DeviceType device_type) override; |
| 40 | 40 |
| 41 private: | 41 private: |
| 42 friend class BrowserContextKeyedAPIFactory<WebrtcAudioPrivateEventService>; | 42 friend class BrowserContextKeyedAPIFactory<WebrtcAudioPrivateEventService>; |
| 43 | 43 |
| 44 void SignalEvent(); | 44 void SignalEvent(); |
| 45 | 45 |
| 46 content::BrowserContext* browser_context_; | 46 content::BrowserContext* browser_context_; |
| 47 }; | 47 }; |
| 48 | 48 |
| 49 // Common base for WebrtcAudioPrivate functions, that provides a | 49 // Common base for WebrtcAudioPrivate functions, that provides a |
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| 110 protected: | 110 protected: |
| 111 virtual ~WebrtcAudioPrivateGetSinksFunction() {} | 111 virtual ~WebrtcAudioPrivateGetSinksFunction() {} |
| 112 | 112 |
| 113 private: | 113 private: |
| 114 DECLARE_EXTENSION_FUNCTION("webrtcAudioPrivate.getSinks", | 114 DECLARE_EXTENSION_FUNCTION("webrtcAudioPrivate.getSinks", |
| 115 WEBRTC_AUDIO_PRIVATE_GET_SINKS); | 115 WEBRTC_AUDIO_PRIVATE_GET_SINKS); |
| 116 | 116 |
| 117 // Sequence of events is that we query the list of sinks on the | 117 // Sequence of events is that we query the list of sinks on the |
| 118 // AudioManager's thread, then calculate HMACs on the IO thread, | 118 // AudioManager's thread, then calculate HMACs on the IO thread, |
| 119 // then finish on the UI thread. | 119 // then finish on the UI thread. |
| 120 virtual bool RunAsync() OVERRIDE; | 120 virtual bool RunAsync() override; |
| 121 void DoQuery(); | 121 void DoQuery(); |
| 122 virtual void OnOutputDeviceNames( | 122 virtual void OnOutputDeviceNames( |
| 123 scoped_ptr<media::AudioDeviceNames> raw_ids) OVERRIDE; | 123 scoped_ptr<media::AudioDeviceNames> raw_ids) override; |
| 124 void DoneOnUIThread(); | 124 void DoneOnUIThread(); |
| 125 }; | 125 }; |
| 126 | 126 |
| 127 class WebrtcAudioPrivateGetActiveSinkFunction | 127 class WebrtcAudioPrivateGetActiveSinkFunction |
| 128 : public WebrtcAudioPrivateFunction { | 128 : public WebrtcAudioPrivateFunction { |
| 129 protected: | 129 protected: |
| 130 virtual ~WebrtcAudioPrivateGetActiveSinkFunction() {} | 130 virtual ~WebrtcAudioPrivateGetActiveSinkFunction() {} |
| 131 | 131 |
| 132 private: | 132 private: |
| 133 DECLARE_EXTENSION_FUNCTION("webrtcAudioPrivate.getActiveSink", | 133 DECLARE_EXTENSION_FUNCTION("webrtcAudioPrivate.getActiveSink", |
| 134 WEBRTC_AUDIO_PRIVATE_GET_ACTIVE_SINK); | 134 WEBRTC_AUDIO_PRIVATE_GET_ACTIVE_SINK); |
| 135 | 135 |
| 136 virtual bool RunAsync() OVERRIDE; | 136 virtual bool RunAsync() override; |
| 137 virtual void OnControllerList( | 137 virtual void OnControllerList( |
| 138 const content::RenderViewHost::AudioOutputControllerList& | 138 const content::RenderViewHost::AudioOutputControllerList& |
| 139 controllers) OVERRIDE; | 139 controllers) override; |
| 140 virtual void OnHMACCalculated(const std::string& hmac) OVERRIDE; | 140 virtual void OnHMACCalculated(const std::string& hmac) override; |
| 141 }; | 141 }; |
| 142 | 142 |
| 143 class WebrtcAudioPrivateSetActiveSinkFunction | 143 class WebrtcAudioPrivateSetActiveSinkFunction |
| 144 : public WebrtcAudioPrivateFunction { | 144 : public WebrtcAudioPrivateFunction { |
| 145 public: | 145 public: |
| 146 WebrtcAudioPrivateSetActiveSinkFunction(); | 146 WebrtcAudioPrivateSetActiveSinkFunction(); |
| 147 | 147 |
| 148 protected: | 148 protected: |
| 149 virtual ~WebrtcAudioPrivateSetActiveSinkFunction(); | 149 virtual ~WebrtcAudioPrivateSetActiveSinkFunction(); |
| 150 | 150 |
| 151 private: | 151 private: |
| 152 DECLARE_EXTENSION_FUNCTION("webrtcAudioPrivate.setActiveSink", | 152 DECLARE_EXTENSION_FUNCTION("webrtcAudioPrivate.setActiveSink", |
| 153 WEBRTC_AUDIO_PRIVATE_SET_ACTIVE_SINK); | 153 WEBRTC_AUDIO_PRIVATE_SET_ACTIVE_SINK); |
| 154 | 154 |
| 155 virtual bool RunAsync() OVERRIDE; | 155 virtual bool RunAsync() override; |
| 156 virtual void OnControllerList( | 156 virtual void OnControllerList( |
| 157 const content::RenderViewHost::AudioOutputControllerList& | 157 const content::RenderViewHost::AudioOutputControllerList& |
| 158 controllers) OVERRIDE; | 158 controllers) override; |
| 159 virtual void OnOutputDeviceNames( | 159 virtual void OnOutputDeviceNames( |
| 160 scoped_ptr<media::AudioDeviceNames> device_names) OVERRIDE; | 160 scoped_ptr<media::AudioDeviceNames> device_names) override; |
| 161 void SwitchDone(); | 161 void SwitchDone(); |
| 162 void DoneOnUIThread(); | 162 void DoneOnUIThread(); |
| 163 | 163 |
| 164 int tab_id_; | 164 int tab_id_; |
| 165 std::string sink_id_; | 165 std::string sink_id_; |
| 166 | 166 |
| 167 // Filled in by OnControllerList. | 167 // Filled in by OnControllerList. |
| 168 content::RenderViewHost::AudioOutputControllerList controllers_; | 168 content::RenderViewHost::AudioOutputControllerList controllers_; |
| 169 | 169 |
| 170 // Number of sink IDs we are still waiting for. Can become greater | 170 // Number of sink IDs we are still waiting for. Can become greater |
| 171 // than 0 in OnControllerList, decreases on every OnSinkId call. | 171 // than 0 in OnControllerList, decreases on every OnSinkId call. |
| 172 size_t num_remaining_sink_ids_; | 172 size_t num_remaining_sink_ids_; |
| 173 }; | 173 }; |
| 174 | 174 |
| 175 class WebrtcAudioPrivateGetAssociatedSinkFunction | 175 class WebrtcAudioPrivateGetAssociatedSinkFunction |
| 176 : public WebrtcAudioPrivateFunction { | 176 : public WebrtcAudioPrivateFunction { |
| 177 public: | 177 public: |
| 178 WebrtcAudioPrivateGetAssociatedSinkFunction(); | 178 WebrtcAudioPrivateGetAssociatedSinkFunction(); |
| 179 | 179 |
| 180 protected: | 180 protected: |
| 181 virtual ~WebrtcAudioPrivateGetAssociatedSinkFunction(); | 181 virtual ~WebrtcAudioPrivateGetAssociatedSinkFunction(); |
| 182 | 182 |
| 183 private: | 183 private: |
| 184 DECLARE_EXTENSION_FUNCTION("webrtcAudioPrivate.getAssociatedSink", | 184 DECLARE_EXTENSION_FUNCTION("webrtcAudioPrivate.getAssociatedSink", |
| 185 WEBRTC_AUDIO_PRIVATE_GET_ASSOCIATED_SINK); | 185 WEBRTC_AUDIO_PRIVATE_GET_ASSOCIATED_SINK); |
| 186 | 186 |
| 187 virtual bool RunAsync() OVERRIDE; | 187 virtual bool RunAsync() override; |
| 188 | 188 |
| 189 // This implementation is slightly complicated because of different | 189 // This implementation is slightly complicated because of different |
| 190 // thread requirements for the various functions we need to invoke. | 190 // thread requirements for the various functions we need to invoke. |
| 191 // | 191 // |
| 192 // Each worker function will post a task to the appropriate thread | 192 // Each worker function will post a task to the appropriate thread |
| 193 // for the next one. | 193 // for the next one. |
| 194 // | 194 // |
| 195 // The sequence of events is: | 195 // The sequence of events is: |
| 196 // 1. Get the list of source devices on the device thread. | 196 // 1. Get the list of source devices on the device thread. |
| 197 // 2. Given a source ID for an origin and that security origin, find | 197 // 2. Given a source ID for an origin and that security origin, find |
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| 208 void GetDevicesOnDeviceThread(); | 208 void GetDevicesOnDeviceThread(); |
| 209 | 209 |
| 210 // Takes the parameters of the function, retrieves the raw source | 210 // Takes the parameters of the function, retrieves the raw source |
| 211 // device ID, or the empty string if none. | 211 // device ID, or the empty string if none. |
| 212 void GetRawSourceIDOnIOThread(); | 212 void GetRawSourceIDOnIOThread(); |
| 213 | 213 |
| 214 // Gets the raw sink ID for a raw source ID. Sends it to |CalculateHMAC|. | 214 // Gets the raw sink ID for a raw source ID. Sends it to |CalculateHMAC|. |
| 215 void GetAssociatedSinkOnDeviceThread(const std::string& raw_source_id); | 215 void GetAssociatedSinkOnDeviceThread(const std::string& raw_source_id); |
| 216 | 216 |
| 217 // Receives the associated sink ID after its HMAC is calculated. | 217 // Receives the associated sink ID after its HMAC is calculated. |
| 218 virtual void OnHMACCalculated(const std::string& hmac) OVERRIDE; | 218 virtual void OnHMACCalculated(const std::string& hmac) override; |
| 219 | 219 |
| 220 // Accessed from UI thread and device thread, but only on one at a | 220 // Accessed from UI thread and device thread, but only on one at a |
| 221 // time, no locking needed. | 221 // time, no locking needed. |
| 222 scoped_ptr<api::webrtc_audio_private::GetAssociatedSink::Params> params_; | 222 scoped_ptr<api::webrtc_audio_private::GetAssociatedSink::Params> params_; |
| 223 | 223 |
| 224 // Audio sources (input devices). Filled in by DoWorkOnDeviceThread. | 224 // Audio sources (input devices). Filled in by DoWorkOnDeviceThread. |
| 225 media::AudioDeviceNames source_devices_; | 225 media::AudioDeviceNames source_devices_; |
| 226 }; | 226 }; |
| 227 | 227 |
| 228 } // namespace extensions | 228 } // namespace extensions |
| 229 | 229 |
| 230 #endif // CHROME_BROWSER_EXTENSIONS_API_WEBRTC_AUDIO_PRIVATE_WEBRTC_AUDIO_PRIVA
TE_API_H_ | 230 #endif // CHROME_BROWSER_EXTENSIONS_API_WEBRTC_AUDIO_PRIVATE_WEBRTC_AUDIO_PRIVA
TE_API_H_ |
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