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// Copyright 2022 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef COMPONENTS_EXO_SHELL_SURFACE_OBSERVER_H_
#define COMPONENTS_EXO_SHELL_SURFACE_OBSERVER_H_
#include <stdint.h>
#include "base/observer_list_types.h"
namespace exo {
class ShellSurfaceObserver : public base::CheckedObserver {
public:
// Invoked to notify the configure event with `serial`.
virtual void OnConfigure(uint32_t serial) {}
// Invoked to notify an acknowledgement of the configure with `serial`.
virtual void OnAcknowledgeConfigure(uint32_t serial) {}
// Invoked when underlying ShellSurface goes away.
virtual void OnShellSurfaceDestroyed() {}
};
} // namespace exo
#endif // COMPONENTS_EXO_SHELL_SURFACE_OBSERVER_H_
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