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// Copyright 2024 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef ASH_TEST_ACTIVE_WINDOW_WAITER_H_
#define ASH_TEST_ACTIVE_WINDOW_WAITER_H_
#include "base/memory/raw_ptr.h"
#include "base/run_loop.h"
#include "base/scoped_observation.h"
#include "ui/wm/public/activation_change_observer.h"
#include "ui/wm/public/activation_client.h"
namespace aura {
class Window;
}
namespace ash {
// Waits for a window to be activated on a given root window. Returns the
// activated window via the Wait() method.
class ActiveWindowWaiter : public wm::ActivationChangeObserver {
public:
explicit ActiveWindowWaiter(aura::Window* root_window);
ActiveWindowWaiter(const ActiveWindowWaiter&) = delete;
ActiveWindowWaiter& operator=(const ActiveWindowWaiter&) = delete;
~ActiveWindowWaiter() override;
// Returns the activated window.
aura::Window* Wait();
// wm::ActivationChangeObserver:
void OnWindowActivated(wm::ActivationChangeObserver::ActivationReason reason,
aura::Window* gained_active,
aura::Window* lost_active) override;
private:
base::RunLoop run_loop_;
raw_ptr<aura::Window> found_window_ = nullptr;
base::ScopedObservation<wm::ActivationClient, wm::ActivationChangeObserver>
observation_{this};
};
} // namespace ash
#endif // ASH_TEST_ACTIVE_WINDOW_WAITER_H_
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