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/*
* Copyright (c) 2013 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 "modules/desktop_capture/win/scoped_thread_desktop.h"
#include "modules/desktop_capture/win/desktop.h"
namespace webrtc {
ScopedThreadDesktop::ScopedThreadDesktop()
: initial_(Desktop::GetThreadDesktop()) {}
ScopedThreadDesktop::~ScopedThreadDesktop() {
Revert();
}
bool ScopedThreadDesktop::IsSame(const Desktop& desktop) {
if (assigned_.get() != NULL) {
return assigned_->IsSame(desktop);
} else {
return initial_->IsSame(desktop);
}
}
void ScopedThreadDesktop::Revert() {
if (assigned_.get() != NULL) {
initial_->SetThreadDesktop();
assigned_.reset();
}
}
bool ScopedThreadDesktop::SetThreadDesktop(Desktop* desktop) {
Revert();
std::unique_ptr<Desktop> scoped_desktop(desktop);
if (initial_->IsSame(*desktop))
return true;
if (!desktop->SetThreadDesktop())
return false;
assigned_.reset(scoped_desktop.release());
return true;
}
} // namespace webrtc