media/base/media_permission.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 MEDIA_BASE_MEDIA_PERMISSION_H_
   6 #define MEDIA_BASE_MEDIA_PERMISSION_H_
   7
   8 #include "base/callback.h"
   9 #include "base/macros.h"
  10 #include "media/base/media_export.h"
  11
  12 class GURL;
  13
  14 namespace media {
  15
  16 // Interface to handle media related permission checks and requests.
  17 class MEDIA_EXPORT MediaPermission {
  18  public:
  19   typedef base::Callback<void(bool)> PermissionStatusCB;
  20
  21   enum Type {
  22     PROTECTED_MEDIA_IDENTIFIER,
  23     AUDIO_CAPTURE,
  24     VIDEO_CAPTURE,
  25   };
  26
  27   MediaPermission();
  28   virtual ~MediaPermission();
  29
  30   // Checks whether |type| is permitted for |security_origion| without
  31   // triggering user interaction (e.g. permission prompt). The status will be
  32   // |false| if the permission has never been set.
  33   virtual void HasPermission(
  34       Type type,
  35       const GURL& security_origin,
  36       const PermissionStatusCB& permission_status_cb) = 0;
  37
  38   // Requests |type| permission for |security_origion|. This may trigger user
  39   // interaction (e.g. permission prompt) if the permission has never been set.
  40   virtual void RequestPermission(
  41       Type type,
  42       const GURL& security_origin,
  43       const PermissionStatusCB& permission_status_cb) = 0;
  44
  45  private:
  46   DISALLOW_COPY_AND_ASSIGN(MediaPermission);
  47 };
  48
  49 }  // namespace media
  50
  51 #endif  // MEDIA_BASE_MEDIA_PERMISSION_H_