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1 // Copyright 2014 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 "content/browser/renderer_host/compositor_resize_lock_aura.h" | |
6 | |
7 #include "base/trace_event/trace_event.h" | |
8 #include "content/public/browser/browser_thread.h" | |
9 #include "ui/aura/window_event_dispatcher.h" | |
10 #include "ui/aura/window_tree_host.h" | |
11 #include "ui/compositor/compositor.h" | |
12 | |
13 namespace content { | |
14 | |
15 CompositorResizeLock::CompositorResizeLock( | |
16 aura::WindowTreeHost* host, | |
17 const gfx::Size new_size, | |
18 bool defer_compositor_lock, | |
19 const base::TimeDelta& timeout) | |
20 : ResizeLock(new_size, defer_compositor_lock), | |
21 host_(host), | |
22 cancelled_(false), | |
23 weak_ptr_factory_(this) { | |
24 DCHECK(host_); | |
25 | |
26 TRACE_EVENT_ASYNC_BEGIN2("ui", "CompositorResizeLock", this, | |
27 "width", expected_size().width(), | |
28 "height", expected_size().height()); | |
29 host_->dispatcher()->HoldPointerMoves(); | |
30 | |
31 BrowserThread::PostDelayedTask( | |
32 BrowserThread::UI, FROM_HERE, | |
33 base::Bind(&CompositorResizeLock::CancelLock, | |
34 weak_ptr_factory_.GetWeakPtr()), | |
35 timeout); | |
36 } | |
37 | |
38 CompositorResizeLock::~CompositorResizeLock() { | |
39 CancelLock(); | |
40 TRACE_EVENT_ASYNC_END2("ui", "CompositorResizeLock", this, | |
41 "width", expected_size().width(), | |
42 "height", expected_size().height()); | |
43 } | |
44 | |
45 bool CompositorResizeLock::GrabDeferredLock() { | |
46 return ResizeLock::GrabDeferredLock(); | |
47 } | |
48 | |
49 void CompositorResizeLock::UnlockCompositor() { | |
50 ResizeLock::UnlockCompositor(); | |
51 compositor_lock_ = NULL; | |
52 } | |
53 | |
54 void CompositorResizeLock::LockCompositor() { | |
55 ResizeLock::LockCompositor(); | |
56 compositor_lock_ = host_->compositor()->GetCompositorLock(); | |
57 } | |
58 | |
59 void CompositorResizeLock::CancelLock() { | |
60 if (cancelled_) | |
61 return; | |
62 cancelled_ = true; | |
63 UnlockCompositor(); | |
64 host_->dispatcher()->ReleasePointerMoves(); | |
65 } | |
66 | |
67 } // namespace content | |
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