| // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "content/browser/media/capture/web_contents_capture_util.h" |
| |
| #include "base/basictypes.h" |
| #include "base/strings/string_number_conversions.h" |
| #include "base/strings/string_piece.h" |
| #include "base/strings/string_util.h" |
| |
| namespace { |
| |
| const char kVirtualDeviceScheme[] = "virtual-media-stream://"; |
| |
| } // namespace |
| |
| namespace content { |
| |
| std::string WebContentsCaptureUtil::AppendWebContentsDeviceScheme( |
| const std::string& device_id) { |
| return kVirtualDeviceScheme + device_id; |
| } |
| |
| std::string WebContentsCaptureUtil::StripWebContentsDeviceScheme( |
| const std::string& device_id) { |
| return (IsWebContentsDeviceId(device_id) ? |
| device_id.substr(arraysize(kVirtualDeviceScheme) - 1) : |
| device_id); |
| } |
| |
| bool WebContentsCaptureUtil::IsWebContentsDeviceId( |
| const std::string& device_id) { |
| return StartsWithASCII(device_id, kVirtualDeviceScheme, true); |
| } |
| |
| bool WebContentsCaptureUtil::ExtractTabCaptureTarget( |
| const std::string& device_id_param, |
| int* render_process_id, |
| int* render_view_id) { |
| if (!IsWebContentsDeviceId(device_id_param)) |
| return false; |
| |
| const std::string device_id = device_id_param.substr( |
| arraysize(kVirtualDeviceScheme) - 1); |
| |
| const size_t sep_pos = device_id.find(':'); |
| if (sep_pos == std::string::npos) |
| return false; |
| |
| const base::StringPiece component1(device_id.data(), sep_pos); |
| const base::StringPiece component2(device_id.data() + sep_pos + 1, |
| device_id.length() - sep_pos - 1); |
| |
| return (base::StringToInt(component1, render_process_id) && |
| base::StringToInt(component2, render_view_id)); |
| } |
| |
| } // namespace content |