default_capture_client.cc revision 1e9bf3e0803691d0a228da41fc608347b6db4340 
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 "ui/aura/client/default_capture_client.h"
6
7#include "ui/aura/root_window.h"
8
9namespace aura {
10namespace client {
11
12DefaultCaptureClient::DefaultCaptureClient(Window* root_window)
13    : root_window_(root_window),
14      capture_window_(NULL) {
15  client::SetCaptureClient(root_window_, this);
16}
17
18DefaultCaptureClient::~DefaultCaptureClient() {
19  client::SetCaptureClient(root_window_, NULL);
20}
21
22void DefaultCaptureClient::SetCapture(Window* window) {
23  if (capture_window_ == window)
24    return;
25  if (window) {
26    ui::GestureRecognizer::Get()->TransferEventsTo(
27        capture_window_, window);
28  }
29
30  Window* old_capture_window = capture_window_;
31  capture_window_ = window;
32
33  CaptureDelegate* capture_delegate = root_window_->GetDispatcher();
34  if (capture_window_)
35    capture_delegate->SetNativeCapture();
36  else
37    capture_delegate->ReleaseNativeCapture();
38
39  capture_delegate->UpdateCapture(old_capture_window, capture_window_);
40}
41
42void DefaultCaptureClient::ReleaseCapture(Window* window) {
43  if (capture_window_ != window)
44    return;
45  SetCapture(NULL);
46}
47
48Window* DefaultCaptureClient::GetCaptureWindow() {
49  return capture_window_;
50}
51
52}  // namespace client
53}  // namespace aura
54