Source/WebCore/platform/graphics/nicosia/NicosiaAnimatedBackingStoreClient.h

/*
 * Copyright (C) 2019 Metrological Group B.V.
 * Copyright (C) 2019 Igalia S.L.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above
 *    copyright notice, this list of conditions and the following
 *    disclaimer in the documentation and/or other materials provided
 *    with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#pragma once

#if USE(COORDINATED_GRAPHICS)

#include <wtf/ThreadSafeRefCounted.h>

namespace WebCore {
class TransformationMatrix;
}

namespace Nicosia {

class AnimatedBackingStoreClient : public ThreadSafeRefCounted<AnimatedBackingStoreClient> {
public:
    enum class Type {
        Coordinated
    };

    explicit AnimatedBackingStoreClient(Type type)
        : m_type(type)
    {
    }

    Type type() const { return m_type; }
    virtual ~AnimatedBackingStoreClient() = default;
    virtual void requestBackingStoreUpdateIfNeeded(const WebCore::TransformationMatrix&) = 0;

private:
    Type m_type;
};

} // namespace Nicosia

#define SPECIALIZE_TYPE_TRAITS_ANIMATEDBACKINGSTORECLIENT(ToValueTypeName, predicate) \
SPECIALIZE_TYPE_TRAITS_BEGIN(ToValueTypeName) \
    static bool isType(const Nicosia::AnimatedBackingStoreClient& client) { return client.predicate; } \
SPECIALIZE_TYPE_TRAITS_END()

#endif // USE(COORDINATED_GRAPHICS)