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/*
* Copyright (C) 2018 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
#include <WebCore/GraphicsLayer.h>
#include <wtf/RetainPtr.h>
#include <wtf/Vector.h>
OBJC_CLASS CALayer;
OBJC_CLASS NSString;
#if PLATFORM(IOS_FAMILY)
OBJC_CLASS UIView;
#endif
namespace WebKit {
class RemoteLayerTreeScrollbars;
class RemoteLayerTreeNode {
WTF_MAKE_FAST_ALLOCATED;
public:
RemoteLayerTreeNode(WebCore::GraphicsLayer::PlatformLayerID, RetainPtr<CALayer>);
#if PLATFORM(IOS_FAMILY)
RemoteLayerTreeNode(WebCore::GraphicsLayer::PlatformLayerID, RetainPtr<UIView>);
#endif
~RemoteLayerTreeNode();
static std::unique_ptr<RemoteLayerTreeNode> createWithPlainLayer(WebCore::GraphicsLayer::PlatformLayerID);
CALayer *layer() const { return m_layer.get(); }
#if PLATFORM(IOS_FAMILY)
UIView *uiView() const { return m_uiView.get(); }
#endif
WebCore::GraphicsLayer::PlatformLayerID layerID() const { return m_layerID; }
const WebCore::EventRegion& eventRegion() const { return m_eventRegion; }
void setEventRegion(const WebCore::EventRegion&);
// Non-ancestor scroller that controls positioning of the layer.
WebCore::GraphicsLayer::PlatformLayerID actingScrollContainerID() const { return m_actingScrollContainerID; }
// Ancestor scrollers that don't affect positioning of the layer.
const Vector<WebCore::GraphicsLayer::PlatformLayerID>& stationaryScrollContainerIDs() const { return m_stationaryScrollContainerIDs; }
void setActingScrollContainerID(WebCore::GraphicsLayer::PlatformLayerID value) { m_actingScrollContainerID = value; }
void setStationaryScrollContainerIDs(Vector<WebCore::GraphicsLayer::PlatformLayerID>&& value) { m_stationaryScrollContainerIDs = WTFMove(value); }
void detachFromParent();
static WebCore::GraphicsLayer::PlatformLayerID layerID(CALayer *);
static RemoteLayerTreeNode* forCALayer(CALayer *);
static NSString *appendLayerDescription(NSString *description, CALayer *);
private:
void initializeLayer();
WebCore::GraphicsLayer::PlatformLayerID m_layerID;
RetainPtr<CALayer> m_layer;
#if PLATFORM(IOS_FAMILY)
RetainPtr<UIView> m_uiView;
#endif
WebCore::EventRegion m_eventRegion;
WebCore::GraphicsLayer::PlatformLayerID m_actingScrollContainerID { 0 };
Vector<WebCore::GraphicsLayer::PlatformLayerID> m_stationaryScrollContainerIDs;
};
}
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