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/*
* Copyright (C) 2012-2023 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 "PlaybackSessionContextIdentifier.h"
#include "RemoteLayerTreeNode.h"
#include "RemoteLayerTreeTransaction.h"
#include <WebCore/PlatformCALayer.h>
#include <WebCore/ProcessIdentifier.h>
#include <wtf/HashMap.h>
#include <wtf/RetainPtr.h>
#include <wtf/TZoneMalloc.h>
#if PLATFORM(IOS_FAMILY) && ENABLE(MODEL_PROCESS)
#include <WebCore/ElementIdentifier.h>
#endif
OBJC_CLASS CAAnimation;
OBJC_CLASS WKAnimationDelegate;
namespace IPC {
class Connection;
}
namespace WebKit {
class RemoteLayerTreeDrawingAreaProxy;
class WebPageProxy;
class RemoteLayerTreeHost {
WTF_MAKE_TZONE_ALLOCATED(RemoteLayerTreeHost);
public:
explicit RemoteLayerTreeHost(RemoteLayerTreeDrawingAreaProxy&);
~RemoteLayerTreeHost();
RemoteLayerTreeNode* nodeForID(std::optional<WebCore::PlatformLayerIdentifier>) const;
RemoteLayerTreeNode* rootNode() const { return m_rootNode.get(); }
RefPtr<RemoteLayerTreeNode> protectedRootNode() const { return m_rootNode.get(); }
CALayer *layerForID(std::optional<WebCore::PlatformLayerIdentifier>) const;
CALayer *rootLayer() const;
RemoteLayerTreeDrawingAreaProxy& drawingArea() const;
// Returns true if the root layer changed.
bool updateLayerTree(const IPC::Connection&, const RemoteLayerTreeTransaction&, float indicatorScaleFactor = 1);
void asyncSetLayerContents(WebCore::PlatformLayerIdentifier, ImageBufferBackendHandle&&, const WebCore::RenderingResourceIdentifier&);
void setIsDebugLayerTreeHost(bool flag) { m_isDebugLayerTreeHost = flag; }
bool isDebugLayerTreeHost() const { return m_isDebugLayerTreeHost; }
typedef HashMap<WebCore::PlatformLayerIdentifier, RetainPtr<WKAnimationDelegate>> LayerAnimationDelegateMap;
LayerAnimationDelegateMap& animationDelegates() { return m_animationDelegates; }
void animationDidStart(std::optional<WebCore::PlatformLayerIdentifier>, CAAnimation *, MonotonicTime startTime);
void animationDidEnd(std::optional<WebCore::PlatformLayerIdentifier>, CAAnimation *);
#if ENABLE(THREADED_ANIMATION_RESOLUTION)
void animationsWereAddedToNode(RemoteLayerTreeNode&);
void animationsWereRemovedFromNode(RemoteLayerTreeNode&);
#endif
void detachFromDrawingArea();
void clearLayers();
// Detach the root layer; it will be reattached upon the next incoming commit.
void detachRootLayer();
// Turn all CAMachPort objects in layer contents into actual IOSurfaces.
// This avoids keeping an outstanding InUse reference when suspended.
void mapAllIOSurfaceBackingStore();
CALayer *layerWithIDForTesting(WebCore::PlatformLayerIdentifier) const;
bool replayDynamicContentScalingDisplayListsIntoBackingStore() const;
bool threadedAnimationResolutionEnabled() const;
bool cssUnprefixedBackdropFilterEnabled() const;
#if ENABLE(THREADED_ANIMATION_RESOLUTION)
Seconds acceleratedTimelineTimeOrigin(WebCore::ProcessIdentifier) const;
MonotonicTime animationCurrentTime(WebCore::ProcessIdentifier) const;
#endif
void remotePageProcessDidTerminate(WebCore::ProcessIdentifier);
private:
Ref<RemoteLayerTreeDrawingAreaProxy> protectedDrawingArea() const;
void createLayer(const RemoteLayerTreeTransaction::LayerCreationProperties&);
RefPtr<RemoteLayerTreeNode> makeNode(const RemoteLayerTreeTransaction::LayerCreationProperties&);
bool updateBannerLayers(const RemoteLayerTreeTransaction&);
void layerWillBeRemoved(WebCore::ProcessIdentifier, WebCore::PlatformLayerIdentifier);
LayerContentsType layerContentsType() const;
WeakPtr<RemoteLayerTreeDrawingAreaProxy> m_drawingArea;
WeakPtr<RemoteLayerTreeNode> m_rootNode;
HashMap<WebCore::PlatformLayerIdentifier, Ref<RemoteLayerTreeNode>> m_nodes;
HashMap<WebCore::LayerHostingContextIdentifier, WebCore::PlatformLayerIdentifier> m_hostingLayers;
HashMap<WebCore::LayerHostingContextIdentifier, WebCore::PlatformLayerIdentifier> m_hostedLayers;
HashMap<WebCore::ProcessIdentifier, HashSet<WebCore::PlatformLayerIdentifier>> m_hostedLayersInProcess;
HashMap<WebCore::PlatformLayerIdentifier, RetainPtr<WKAnimationDelegate>> m_animationDelegates;
#if HAVE(AVKIT)
HashMap<WebCore::PlatformLayerIdentifier, PlaybackSessionContextIdentifier> m_videoLayers;
#endif
#if ENABLE(OVERLAY_REGIONS_IN_EVENT_REGION)
HashSet<WebCore::PlatformLayerIdentifier> m_overlayRegionIDs;
#endif
#if PLATFORM(IOS_FAMILY) && ENABLE(MODEL_PROCESS)
HashSet<WebCore::PlatformLayerIdentifier> m_modelLayers;
#endif
bool m_isDebugLayerTreeHost { false };
};
} // namespace WebKit
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