Add DesktopCapturer GetSourceList SelectSource FocusOnSelectedSource functions

webrtc/modules/desktop_capture/desktop_capturer.cc

+/*
+ *  Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include "webrtc/modules/desktop_capture/desktop_capturer.h"
+
+#include "webrtc/modules/desktop_capture/desktop_capture_options.h"
+#include "webrtc/modules/desktop_capture/screen_capturer_differ_wrapper.h"
+
+namespace webrtc {
+
+WindowId DesktopCapturer::Source::window_id() const {
+  return id;
+}
+
+ScreenId DesktopCapturer::Source::screen_id() const {
+  return id;
+}
+
+bool DesktopCapturer::Source::operator<(const Source& other) const {
+  if (type == other.type) {
+    return id < other.id;
+  }
+
+  return type < other.type;
+}
+
+bool DesktopCapturer::Source::operator>(const Source& other) const {
+  return (*this != other) && !(*this < other);
+}
+
+bool DesktopCapturer::Source::operator==(const Source& other) const {
+  if (type != other.type) {
+    return false;
+  }
+
+  return id == other.id;
+}
+
+bool DesktopCapturer::Source::operator!=(const Source& other) const {
+  return !(*this == other);
+}
+
+// static
+DesktopCapturer::Source DesktopCapturer::Source::NewWindow(
+    WindowId id,
+    const std::string& title) {
+// MSVC and android-g++ does not support C99 structure initialization.

[Sergey Ulanov, 2016/10/28 15:53:21]

This is a not a good reason to use ifdef. The first version of this code would
work on all platforms. Or you can also do Source{SourceType::WINDOW, id, title};

[Hzj_jie, 2016/10/28 22:03:53]

Done.

+#if defined(_MSC_VER) || defined(WEBRTC_ANDROID)
+  Source result;
+  result.type = SourceType::WINDOW;
+  result.id = id;
+  result.title = title;
+  return result;
+#else
+  return Source{.type = SourceType::WINDOW, .id = id, .title = title};
+#endif
+}
+
+// static
+DesktopCapturer::Source DesktopCapturer::Source::NewScreen(ScreenId id) {
+// MSVC and android-g++ does not support C99 structure initialization.
+#if defined(_MSC_VER) || defined(WEBRTC_ANDROID)
+  Source result;
+  result.type = SourceType::SCREEN;
+  result.id = id;
+  return result;
+#else
+  return Source{.type = SourceType::SCREEN, .id = id};
+#endif
+}
+
+DesktopCapturer::~DesktopCapturer() = default;
+
+void DesktopCapturer::SetSharedMemoryFactory(
+    std::unique_ptr<SharedMemoryFactory> shared_memory_factory) {}
+
+void DesktopCapturer::SetExcludedWindow(WindowId window) {}
+
+bool DesktopCapturer::GetSourceList(SourceList* sources) {
+  return true;
+}
+
+bool DesktopCapturer::SelectSource(const Source& source) {
+  return false;
+}
+
+bool DesktopCapturer::FocusOnSelectedSource() {
+  return false;
+}
+
+}  // namespace webrtc