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/*
* Copyright (C) 2014 Apple Inc. All rights reserved.
*
* 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 APPLE INC. AND ITS 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 APPLE INC. OR ITS 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 ENABLE(UI_SIDE_COMPOSITING)
#include <WebCore/FrameIdentifier.h>
#include <wtf/text/WTFString.h>
namespace WebCore {
class ScrollingStateTree;
}
namespace WebKit {
class RemoteScrollingCoordinatorTransaction {
public:
enum class FromDeserialization : bool { No, Yes };
RemoteScrollingCoordinatorTransaction();
RemoteScrollingCoordinatorTransaction(std::unique_ptr<WebCore::ScrollingStateTree>&&, bool, std::optional<WebCore::FrameIdentifier> = std::nullopt, FromDeserialization = FromDeserialization::Yes);
RemoteScrollingCoordinatorTransaction(RemoteScrollingCoordinatorTransaction&&);
RemoteScrollingCoordinatorTransaction& operator=(RemoteScrollingCoordinatorTransaction&&);
~RemoteScrollingCoordinatorTransaction();
std::unique_ptr<WebCore::ScrollingStateTree>& scrollingStateTree() { return m_scrollingStateTree; }
const std::unique_ptr<WebCore::ScrollingStateTree>& scrollingStateTree() const { return m_scrollingStateTree; }
std::optional<WebCore::FrameIdentifier> rootFrameIdentifier() const { return m_rootFrameID; }
void setFrameIdentifier(WebCore::FrameIdentifier identifier) { m_rootFrameID = identifier; }
bool clearScrollLatching() const { return m_clearScrollLatching; }
#if !defined(NDEBUG) || !LOG_DISABLED
String description() const;
void dump() const;
#endif
private:
std::unique_ptr<WebCore::ScrollingStateTree> m_scrollingStateTree;
// Data encoded here should be "imperative" (valid just for one transaction). Stateful things should live on scrolling tree nodes.
// Maybe RequestedScrollData should move here.
bool m_clearScrollLatching { false };
// Frame Identifier for the root frame of this transaction
Markable<WebCore::FrameIdentifier> m_rootFrameID;
};
} // namespace WebKit
#endif // ENABLE(UI_SIDE_COMPOSITING)
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