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 #include "content/browser/media/capture/web_contents_capture_util.h" 6 7 #include "base/basictypes.h" 8 #include "base/strings/string_number_conversions.h" 9 #include "base/strings/string_piece.h" 10 #include "base/strings/string_util.h" 11 12 namespace content { 13 14 bool WebContentsCaptureUtil::IsWebContentsDeviceId( 15 const std::string& device_id) { 16 int ignored; 17 return ExtractTabCaptureTarget(device_id, &ignored, &ignored); 18 } 19 20 bool WebContentsCaptureUtil::ExtractTabCaptureTarget( 21 const std::string& device_id_param, 22 int* render_process_id, 23 int* main_render_frame_id) { 24 static const char kDeviceScheme[] = "web-contents-media-stream://"; 25 if (!StartsWithASCII(device_id_param, kDeviceScheme, true)) 26 return false; 27 28 const std::string device_id = device_id_param.substr( 29 arraysize(kDeviceScheme) - 1); 30 31 const size_t sep_pos = device_id.find(':'); 32 if (sep_pos == std::string::npos) 33 return false; 34 35 const base::StringPiece component1(device_id.data(), sep_pos); 36 const base::StringPiece component2(device_id.data() + sep_pos + 1, 37 device_id.length() - sep_pos - 1); 38 39 return (base::StringToInt(component1, render_process_id) && 40 base::StringToInt(component2, main_render_frame_id)); 41 } 42 43 } // namespace content 44
