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// 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 "remoting/host/scoped_thread_desktop_win.h"
#include "base/logging.h"
#include "remoting/host/desktop_win.h"
namespace remoting {
ScopedThreadDesktopWin::ScopedThreadDesktopWin()
: initial_(DesktopWin::GetThreadDesktop()) {
}
ScopedThreadDesktopWin::~ScopedThreadDesktopWin() {
Revert();
}
bool ScopedThreadDesktopWin::IsSame(const DesktopWin& desktop) {
if (assigned_.get() != NULL) {
return assigned_->IsSame(desktop);
} else {
return initial_->IsSame(desktop);
}
}
void ScopedThreadDesktopWin::Revert() {
if (assigned_.get() != NULL) {
initial_->SetThreadDesktop();
assigned_.reset();
}
}
bool ScopedThreadDesktopWin::SetThreadDesktop(scoped_ptr<DesktopWin> desktop) {
Revert();
if (initial_->IsSame(*desktop))
return false;
if (!desktop->SetThreadDesktop())
return false;
assigned_ = desktop.Pass();
return true;
}
} // namespace remoting
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