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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 "remoting/capturer/win/scoped_thread_desktop.h" | |
6 | |
7 #include "base/logging.h" | |
8 | |
9 #include "remoting/capturer/win/desktop.h" | |
10 | |
11 namespace remoting { | |
12 | |
13 ScopedThreadDesktop::ScopedThreadDesktop() | |
14 : initial_(Desktop::GetThreadDesktop()) { | |
15 } | |
16 | |
17 ScopedThreadDesktop::~ScopedThreadDesktop() { | |
18 Revert(); | |
19 } | |
20 | |
21 bool ScopedThreadDesktop::IsSame(const Desktop& desktop) { | |
22 if (assigned_.get() != NULL) { | |
23 return assigned_->IsSame(desktop); | |
24 } else { | |
25 return initial_->IsSame(desktop); | |
26 } | |
27 } | |
28 | |
29 void ScopedThreadDesktop::Revert() { | |
30 if (assigned_.get() != NULL) { | |
31 initial_->SetThreadDesktop(); | |
32 assigned_.reset(); | |
33 } | |
34 } | |
35 | |
36 bool ScopedThreadDesktop::SetThreadDesktop(scoped_ptr<Desktop> desktop) { | |
37 Revert(); | |
38 | |
39 if (initial_->IsSame(*desktop)) | |
40 return true; | |
41 | |
42 if (!desktop->SetThreadDesktop()) | |
43 return false; | |
44 | |
45 assigned_ = desktop.Pass(); | |
46 return true; | |
47 } | |
48 | |
49 } // namespace remoting | |
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