ui/aura/client/default_capture_client.cc

   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 #include "ui/aura/window.h"
   9
  10 namespace aura {
  11 namespace client {
  12
  13 DefaultCaptureClient::DefaultCaptureClient(Window* root_window)
  14     : root_window_(root_window),
  15       capture_window_(NULL) {
  16   SetCaptureClient(root_window_, this);
  17 }
  18
  19 DefaultCaptureClient::~DefaultCaptureClient() {
  20   SetCaptureClient(root_window_, NULL);
  21 }
  22
  23 void DefaultCaptureClient::SetCapture(Window* window) {
  24   if (capture_window_ == window)
  25     return;
  26   if (window) {
  27     ui::GestureRecognizer::Get()->TransferEventsTo(
  28         capture_window_, window);
  29   }
  30
  31   Window* old_capture_window = capture_window_;
  32   capture_window_ = window;
  33
  34   CaptureDelegate* capture_delegate = root_window_->GetDispatcher();
  35   if (capture_window_)
  36     capture_delegate->SetNativeCapture();
  37   else
  38     capture_delegate->ReleaseNativeCapture();
  39
  40   capture_delegate->UpdateCapture(old_capture_window, capture_window_);
  41 }
  42
  43 void DefaultCaptureClient::ReleaseCapture(Window* window) {
  44   if (capture_window_ != window)
  45     return;
  46   SetCapture(NULL);
  47 }
  48
  49 Window* DefaultCaptureClient::GetCaptureWindow() {
  50   return capture_window_;
  51 }
  52
  53 Window* DefaultCaptureClient::GetGlobalCaptureWindow() {
  54   return capture_window_;
  55 }
  56
  57 }  // namespace client
  58 }  // namespace aura