content/renderer/media/media_permission_dispatcher.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_MEDIA_MEDIA_PERMISSION_DISPATCHER_H_
   6 #define CONTENT_RENDERER_MEDIA_MEDIA_PERMISSION_DISPATCHER_H_
   7
   8 #include <map>
   9
  10 #include "base/threading/thread_checker.h"
  11 #include "content/common/content_export.h"
  12 #include "content/common/permission_service.mojom.h"
  13 #include "content/public/renderer/render_frame_observer.h"
  14 #include "media/base/media_permission.h"
  15
  16 namespace content {
  17
  18 // MediaPermission implementation in content. This class is not thread safe
  19 // and should only be used on one thread.
  20 class CONTENT_EXPORT MediaPermissionDispatcher : public media::MediaPermission,
  21                                                  public RenderFrameObserver {
  22  public:
  23   explicit MediaPermissionDispatcher(RenderFrame* render_frame);
  24   ~MediaPermissionDispatcher() override;
  25
  26   // media::MediaPermission implementation.
  27   void HasPermission(Type type,
  28                      const GURL& security_origin,
  29                      const PermissionStatusCB& permission_status_cb) override;
  30   void RequestPermission(
  31       Type type,
  32       const GURL& security_origin,
  33       const PermissionStatusCB& permission_status_cb) override;
  34
  35  private:
  36   // Map of request IDs and pending PermissionStatusCBs.
  37   typedef std::map<uint32_t, PermissionStatusCB> RequestMap;
  38
  39   // Callback for |permission_service_| calls.
  40   void OnPermissionStatus(uint32_t request_id, PermissionStatus status);
  41
  42   uint32_t next_request_id_;
  43   RequestMap requests_;
  44   PermissionServicePtr permission_service_;
  45
  46   base::ThreadChecker thread_checker_;
  47
  48   DISALLOW_COPY_AND_ASSIGN(MediaPermissionDispatcher);
  49 };
  50
  51 }  // namespace content
  52
  53 #endif  // CONTENT_RENDERER_MEDIA_MEDIA_PERMISSION_DISPATCHER_H_