content/renderer/pepper/pepper_camera_device_host.h

   1 // Copyright 2015 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_CAMERA_DEVICE_HOST_H_
   6 #define CONTENT_RENDERER_PEPPER_PEPPER_CAMERA_DEVICE_HOST_H_
   7
   8 #include "base/memory/scoped_ptr.h"
   9 #include "content/public/renderer/renderer_ppapi_host.h"
  10 #include "content/renderer/pepper/ppb_buffer_impl.h"
  11 #include "ppapi/c/pp_size.h"
  12 #include "ppapi/c/private/pp_video_capture_format.h"
  13 #include "ppapi/host/host_message_context.h"
  14 #include "ppapi/host/resource_host.h"
  15
  16 namespace content {
  17 class PepperPlatformCameraDevice;
  18 class RendererPpapiHostImpl;
  19
  20 class PepperCameraDeviceHost : public ppapi::host::ResourceHost {
  21  public:
  22   PepperCameraDeviceHost(RendererPpapiHostImpl* host,
  23                          PP_Instance instance,
  24                          PP_Resource resource);
  25
  26   ~PepperCameraDeviceHost() override;
  27
  28   bool Init();
  29
  30   int32_t OnResourceMessageReceived(
  31       const IPC::Message& msg,
  32       ppapi::host::HostMessageContext* context) override;
  33
  34   // These methods are called by PepperPlatformCameraDevice only.
  35
  36   // Called when camera device is initialized.
  37   void OnInitialized(bool succeeded);
  38
  39   // Called when the video capture formats are enumerated.
  40   void OnVideoCaptureFormatsEnumerated(
  41       const std::vector<PP_VideoCaptureFormat>& formats);
  42
  43  private:
  44   // Plugin -> host message handlers.
  45   int32_t OnOpen(ppapi::host::HostMessageContext* context,
  46                  const std::string& device_id);
  47   int32_t OnClose(ppapi::host::HostMessageContext* context);
  48   int32_t OnGetSupportedVideoCaptureFormats(
  49       ppapi::host::HostMessageContext* context);
  50
  51   // Utility methods.
  52   void DetachPlatformCameraDevice();
  53
  54   scoped_ptr<PepperPlatformCameraDevice> platform_camera_device_;
  55
  56   RendererPpapiHostImpl* renderer_ppapi_host_;
  57
  58   ppapi::host::ReplyMessageContext open_reply_context_;
  59
  60   ppapi::host::ReplyMessageContext video_capture_formats_reply_context_;
  61
  62   DISALLOW_COPY_AND_ASSIGN(PepperCameraDeviceHost);
  63 };
  64
  65 }  // namespace content
  66
  67 #endif  // CONTENT_RENDERER_PEPPER_PEPPER_CAMERA_DEVICE_HOST_H_