content/renderer/pepper/pepper_device_enumeration_event_handler.h

   1 // Copyright (c) 2012 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 CONTENT_RENDERER_PEPPER_PEPPER_DEVICE_ENUMERATION_EVENT_HANDLER_H_
   6 #define CONTENT_RENDERER_PEPPER_PEPPER_DEVICE_ENUMERATION_EVENT_HANDLER_H_
   7
   8 #include <map>
   9
  10 #include "base/memory/weak_ptr.h"
  11 #include "content/renderer/media/media_stream_dispatcher_eventhandler.h"
  12 #include "content/renderer/pepper/pepper_plugin_delegate_impl.h"
  13 #include "webkit/plugins/ppapi/plugin_delegate.h"
  14
  15 namespace content {
  16
  17 class PepperDeviceEnumerationEventHandler
  18     : public MediaStreamDispatcherEventHandler,
  19       public base::SupportsWeakPtr<PepperDeviceEnumerationEventHandler> {
  20  public:
  21   PepperDeviceEnumerationEventHandler();
  22   virtual ~PepperDeviceEnumerationEventHandler();
  23
  24   int RegisterEnumerateDevicesCallback(
  25       const webkit::ppapi::PluginDelegate::EnumerateDevicesCallback& callback);
  26   void UnregisterEnumerateDevicesCallback(int request_id);
  27
  28   int RegisterOpenDeviceCallback(
  29       const PepperPluginDelegateImpl::OpenDeviceCallback& callback);
  30
  31   // MediaStreamDispatcherEventHandler implementation.
  32   virtual void OnStreamGenerated(
  33       int request_id,
  34       const std::string& label,
  35       const StreamDeviceInfoArray& audio_device_array,
  36       const StreamDeviceInfoArray& video_device_array) OVERRIDE;
  37   virtual void OnStreamGenerationFailed(int request_id) OVERRIDE;
  38   virtual void OnDevicesEnumerated(
  39       int request_id,
  40       const StreamDeviceInfoArray& device_array) OVERRIDE;
  41   virtual void OnDevicesEnumerationFailed(int request_id) OVERRIDE;
  42   virtual void OnDeviceOpened(
  43       int request_id,
  44       const std::string& label,
  45       const StreamDeviceInfo& device_info) OVERRIDE;
  46   virtual void OnDeviceOpenFailed(int request_id) OVERRIDE;
  47
  48   // Stream type conversion.
  49   static MediaStreamType FromPepperDeviceType(PP_DeviceType_Dev type);
  50   static PP_DeviceType_Dev FromMediaStreamType(MediaStreamType type);
  51
  52  private:
  53   void NotifyDevicesEnumerated(
  54       int request_id,
  55       bool succeeded,
  56       const StreamDeviceInfoArray& device_array);
  57
  58   void NotifyDeviceOpened(int request_id,
  59                           bool succeeded,
  60                           const std::string& label);
  61
  62   int next_id_;
  63
  64   typedef std::map<int,
  65                    webkit::ppapi::PluginDelegate::EnumerateDevicesCallback>
  66       EnumerateCallbackMap;
  67   EnumerateCallbackMap enumerate_callbacks_;
  68
  69   typedef std::map<int, PepperPluginDelegateImpl::OpenDeviceCallback>
  70       OpenCallbackMap;
  71   OpenCallbackMap open_callbacks_;
  72
  73   DISALLOW_COPY_AND_ASSIGN(PepperDeviceEnumerationEventHandler);
  74 };
  75
  76 }  // namespace content
  77
  78 #endif  // CONTENT_RENDERER_PEPPER_PEPPER_DEVICE_ENUMERATION_EVENT_HANDLER_H_