chrome/browser/media/desktop_capture_access_handler.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 CHROME_BROWSER_MEDIA_DESKTOP_CAPTURE_ACCESS_HANDLER_H_
   6 #define CHROME_BROWSER_MEDIA_DESKTOP_CAPTURE_ACCESS_HANDLER_H_
   7
   8 #include <list>
   9
  10 #include "chrome/browser/media/media_access_handler.h"
  11
  12 class DesktopStreamsRegistry;
  13
  14 // MediaAccessHandler for DesktopCapture API.
  15 class DesktopCaptureAccessHandler : public MediaAccessHandler {
  16  public:
  17   DesktopCaptureAccessHandler();
  18   ~DesktopCaptureAccessHandler() override;
  19
  20   // MediaAccessHandler implementation.
  21   bool SupportsStreamType(const content::MediaStreamType type,
  22                           const extensions::Extension* extension) override;
  23   bool CheckMediaAccessPermission(
  24       content::WebContents* web_contents,
  25       const GURL& security_origin,
  26       content::MediaStreamType type,
  27       const extensions::Extension* extension) override;
  28   void HandleRequest(content::WebContents* web_contents,
  29                      const content::MediaStreamRequest& request,
  30                      const content::MediaResponseCallback& callback,
  31                      const extensions::Extension* extension) override;
  32   void UpdateMediaRequestState(int render_process_id,
  33                                int render_frame_id,
  34                                int page_request_id,
  35                                content::MediaStreamType stream_type,
  36                                content::MediaRequestState state) override;
  37
  38   bool IsCaptureInProgress();
  39
  40  private:
  41   // Tracks MEDIA_DESKTOP_VIDEO_CAPTURE sessions which reach the
  42   // MEDIA_REQUEST_STATE_DONE state.  Sessions are remove when
  43   // MEDIA_REQUEST_STATE_CLOSING is encountered.
  44   struct DesktopCaptureSession {
  45     int render_process_id;
  46     int render_frame_id;
  47     int page_request_id;
  48   };
  49   typedef std::list<DesktopCaptureSession> DesktopCaptureSessions;
  50
  51   void ProcessScreenCaptureAccessRequest(
  52       content::WebContents* web_contents,
  53       const content::MediaStreamRequest& request,
  54       const content::MediaResponseCallback& callback,
  55       const extensions::Extension* extension);
  56
  57   DesktopCaptureSessions desktop_capture_sessions_;
  58 };
  59
  60 #endif  // CHROME_BROWSER_MEDIA_DESKTOP_CAPTURE_ACCESS_HANDLER_H_