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// Copyright 2019 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.
#ifndef COMPONENTS_EXO_POINTER_CONSTRAINT_DELEGATE_H_
#define COMPONENTS_EXO_POINTER_CONSTRAINT_DELEGATE_H_
namespace exo {
class Surface;
class PointerConstraintDelegate {
public:
virtual ~PointerConstraintDelegate() = default;
// Called when this lock is broken for any reason. Possibly:
// - A user action broke the lock.
// - The lock was granted to a different client.
// - The pointer was destroyed while the lock was active.
//
// No matter the case, this delegate no longer holds the lock and therefore
// should not call UnconstrainPointer().
virtual void OnConstraintBroken() = 0;
// Callback to access the surface which this delegate wants to lock the
// curstor for.
virtual Surface* GetConstrainedSurface() = 0;
};
} // namespace exo
#endif // COMPONENTS_EXO_POINTER_CONSTRAINT_DELEGATE_H_
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