extensions/browser/api/audio/audio_api.h

   1 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef EXTENSIONS_BROWSER_API_AUDIO_AUDIO_API_H_
   6 #define EXTENSIONS_BROWSER_API_AUDIO_AUDIO_API_H_
   7
   8 #include "extensions/browser/api/audio/audio_service.h"
   9 #include "extensions/browser/browser_context_keyed_api_factory.h"
  10 #include "extensions/browser/extension_function.h"
  11
  12 namespace extensions {
  13
  14 class AudioService;
  15
  16 class AudioAPI : public BrowserContextKeyedAPI, public AudioService::Observer {
  17  public:
  18   explicit AudioAPI(content::BrowserContext* context);
  19   ~AudioAPI() override;
  20
  21   AudioService* GetService() const;
  22
  23   // BrowserContextKeyedAPI implementation.
  24   static BrowserContextKeyedAPIFactory<AudioAPI>* GetFactoryInstance();
  25
  26   // AudioService::Observer implementation.
  27   void OnDeviceChanged() override;
  28   void OnLevelChanged(const std::string& id, int level) override;
  29   void OnMuteChanged(bool is_input, bool is_muted) override;
  30   void OnDevicesChanged(const DeviceInfoList& devices) override;
  31
  32  private:
  33   friend class BrowserContextKeyedAPIFactory<AudioAPI>;
  34
  35   // BrowserContextKeyedAPI implementation.
  36   static const char* service_name() {
  37     return "AudioAPI";
  38   }
  39
  40   content::BrowserContext* const browser_context_;
  41   AudioService* service_;
  42 };
  43
  44 class AudioGetInfoFunction : public AsyncExtensionFunction {
  45  public:
  46   DECLARE_EXTENSION_FUNCTION("audio.getInfo", AUDIO_GETINFO);
  47
  48  protected:
  49   ~AudioGetInfoFunction() override {}
  50   bool RunAsync() override;
  51
  52  private:
  53   void OnGetInfoCompleted(const OutputInfo& output_info,
  54                           const InputInfo& input_info,
  55                           bool success);
  56 };
  57
  58 class AudioSetActiveDevicesFunction : public SyncExtensionFunction {
  59  public:
  60   DECLARE_EXTENSION_FUNCTION("audio.setActiveDevices", AUDIO_SETACTIVEDEVICES);
  61
  62  protected:
  63   ~AudioSetActiveDevicesFunction() override {}
  64   bool RunSync() override;
  65 };
  66
  67 class AudioSetPropertiesFunction : public SyncExtensionFunction {
  68  public:
  69   DECLARE_EXTENSION_FUNCTION("audio.setProperties", AUDIO_SETPROPERTIES);
  70
  71  protected:
  72   ~AudioSetPropertiesFunction() override {}
  73   bool RunSync() override;
  74 };
  75
  76 }  // namespace extensions
  77
  78 #endif  // EXTENSIONS_BROWSER_API_AUDIO_AUDIO_API_H_