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// 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 "ui/aura/window.h"
namespace aura {
ScopedWindowTargeter::ScopedWindowTargeter(
Window* window,
scoped_ptr<ui::EventTargeter> new_targeter)
: window_(window),
old_targeter_(window->SetEventTargeter(new_targeter.Pass())) {
window_->AddObserver(this);
}
ScopedWindowTargeter::~ScopedWindowTargeter() {
if (window_) {
window_->RemoveObserver(this);
window_->SetEventTargeter(old_targeter_.Pass());
}
}
void ScopedWindowTargeter::OnWindowDestroyed(Window* window) {
CHECK_EQ(window_, window);
window_ = NULL;
old_targeter_.reset();
}
} // namespace aura
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