| // Copyright 2014 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 "ui/aura/scoped_window_targeter.h" |
| |
| #include <utility> |
| |
| #include "ui/aura/window.h" |
| #include "ui/aura/window_targeter.h" |
| |
| namespace aura { |
| |
| ScopedWindowTargeter::ScopedWindowTargeter( |
| Window* window, |
| std::unique_ptr<WindowTargeter> new_targeter) |
| : window_(window), |
| old_targeter_(window->SetEventTargeter(std::move(new_targeter))) { |
| window_->AddObserver(this); |
| } |
| |
| ScopedWindowTargeter::~ScopedWindowTargeter() { |
| if (window_) { |
| window_->RemoveObserver(this); |
| window_->SetEventTargeter(std::move(old_targeter_)); |
| } |
| } |
| |
| void ScopedWindowTargeter::OnWindowDestroyed(Window* window) { |
| CHECK_EQ(window_, window); |
| window_ = nullptr; |
| old_targeter_.reset(); |
| } |
| |
| } // namespace aura |