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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 "DrawingAreaProxy.h"
#include "RemoteImageBufferSetIdentifier.h"
#include "RemoteLayerTreeHost.h"
#include "TransactionID.h"
#include <WebCore/AnimationFrameRate.h>
#include <WebCore/FloatPoint.h>
#include <WebCore/IntPoint.h>
#include <WebCore/IntSize.h>
#include <wtf/RefCounted.h>
#include <wtf/WeakHashMap.h>
namespace WebKit {
class RemoteLayerTreeTransaction;
class RemotePageDrawingAreaProxy;
class RemoteScrollingCoordinatorProxy;
class RemoteScrollingCoordinatorProxy;
class RemoteScrollingCoordinatorTransaction;
class RemoteLayerTreeDrawingAreaProxy : public DrawingAreaProxy, public RefCounted<RemoteLayerTreeDrawingAreaProxy> {
WTF_MAKE_TZONE_ALLOCATED(RemoteLayerTreeDrawingAreaProxy);
WTF_MAKE_NONCOPYABLE(RemoteLayerTreeDrawingAreaProxy);
WTF_OVERRIDE_DELETE_FOR_CHECKED_PTR(RemoteLayerTreeDrawingAreaProxy);
public:
virtual ~RemoteLayerTreeDrawingAreaProxy();
void ref() const final { RefCounted::ref(); }
void deref() const final { RefCounted::deref(); }
const RemoteLayerTreeHost& remoteLayerTreeHost() const { return *m_remoteLayerTreeHost; }
std::unique_ptr<RemoteLayerTreeHost> detachRemoteLayerTreeHost();
virtual std::unique_ptr<RemoteScrollingCoordinatorProxy> createScrollingCoordinatorProxy() const = 0;
void acceleratedAnimationDidStart(WebCore::PlatformLayerIdentifier, const String& key, MonotonicTime startTime);
void acceleratedAnimationDidEnd(WebCore::PlatformLayerIdentifier, const String& key);
TransactionID nextMainFrameLayerTreeTransactionID() const { return m_webPageProxyProcessState.pendingLayerTreeTransactionID.value_or(TransactionID(TransactionIdentifier(), m_transactionIDForPendingCACommit.processIdentifier())).next(); }
TransactionID lastCommittedMainFrameLayerTreeTransactionID() const { return m_transactionIDForPendingCACommit; }
virtual void didRefreshDisplay();
virtual void setDisplayLinkWantsFullSpeedUpdates(bool) { }
bool hasDebugIndicator() const { return !!m_debugIndicatorLayerTreeHost; }
CALayer *layerWithIDForTesting(WebCore::PlatformLayerIdentifier) const;
void viewWillStartLiveResize() final;
void viewWillEndLiveResize() final;
#if ENABLE(THREADED_ANIMATION_RESOLUTION)
void animationsWereAddedToNode(RemoteLayerTreeNode&);
void animationsWereRemovedFromNode(RemoteLayerTreeNode&);
Seconds acceleratedTimelineTimeOrigin(WebCore::ProcessIdentifier) const;
MonotonicTime animationCurrentTime(WebCore::ProcessIdentifier) const;
#endif
// For testing.
unsigned countOfTransactionsWithNonEmptyLayerChanges() const { return m_countOfTransactionsWithNonEmptyLayerChanges; }
protected:
RemoteLayerTreeDrawingAreaProxy(WebPageProxy&, WebProcessProxy&);
void updateDebugIndicatorPosition();
bool shouldCoalesceVisualEditorStateUpdates() const override { return true; }
// displayDidRefresh is sent to the WebProcess, and it responds
// with a commitLayerTree message (ideally before the next
// displayDidRefresh, otherwise we mark it as missed and send
// it when commitLayerTree does arrive).
enum CommitLayerTreeMessageState { CommitLayerTreePending, NeedsDisplayDidRefresh, MissedCommit, Idle };
struct ProcessState {
WTF_MAKE_NONCOPYABLE(ProcessState);
ProcessState() = default;
ProcessState(ProcessState&&) = default;
ProcessState& operator=(ProcessState&&) = default;
CommitLayerTreeMessageState commitLayerTreeMessageState { Idle };
std::optional<TransactionID> lastLayerTreeTransactionID;
std::optional<TransactionID> pendingLayerTreeTransactionID;
#if ENABLE(THREADED_ANIMATION_RESOLUTION)
Seconds acceleratedTimelineTimeOrigin;
MonotonicTime animationCurrentTime;
#endif
};
ProcessState& processStateForConnection(IPC::Connection&);
const ProcessState& processStateForIdentifier(WebCore::ProcessIdentifier) const;
IPC::Connection* connectionForIdentifier(WebCore::ProcessIdentifier);
void forEachProcessState(NOESCAPE Function<void(ProcessState&, WebProcessProxy&)>&&);
private:
void remotePageProcessDidTerminate(WebCore::ProcessIdentifier) final;
void sizeDidChange() final;
void deviceScaleFactorDidChange(CompletionHandler<void()>&&) final;
void windowKindDidChange() final;
void minimumSizeForAutoLayoutDidChange() final;
void sizeToContentAutoSizeMaximumSizeDidChange() final;
void didUpdateGeometry();
std::span<IPC::ReceiverName> messageReceiverNames() const final;
virtual void scheduleDisplayRefreshCallbacks() { }
virtual void pauseDisplayRefreshCallbacks() { }
virtual void dispatchSetObscuredContentInsets() { }
float indicatorScale(WebCore::IntSize contentsSize) const;
void updateDebugIndicator() final;
void updateDebugIndicator(WebCore::IntSize contentsSize, bool rootLayerChanged, float scale, const WebCore::IntPoint& scrollPosition);
void initializeDebugIndicator();
void waitForDidUpdateActivityState(ActivityStateChangeID) final;
void hideContentUntilPendingUpdate() final;
void hideContentUntilAnyUpdate() final;
bool hasVisibleContent() const final;
void prepareForAppSuspension() final;
WebCore::FloatPoint indicatorLocation() const;
void addRemotePageDrawingAreaProxy(RemotePageDrawingAreaProxy&) final;
void removeRemotePageDrawingAreaProxy(RemotePageDrawingAreaProxy&) final;
// IPC::MessageReceiver
void didReceiveMessage(IPC::Connection&, IPC::Decoder&) final;
// Message handlers
// FIXME(site-isolation): We really want a Connection parameter to all of these (including
// on the DrawingAreaProxy base class), and make sure we filter them
// appropriately. Can we enforce that?
// FIXME(site-isolation): We currently allow this from any subframe process and it overwrites
// the main frame's request. We should either ignore subframe requests, or
// properly track all the requested and filter displayDidRefresh callback rates
// per-frame.
virtual void setPreferredFramesPerSecond(IPC::Connection&, WebCore::FramesPerSecond) { }
void willCommitLayerTree(IPC::Connection&, TransactionID);
void commitLayerTreeNotTriggered(IPC::Connection&, TransactionID);
void commitLayerTree(IPC::Connection&, const Vector<std::pair<RemoteLayerTreeTransaction, RemoteScrollingCoordinatorTransaction>>&, HashMap<RemoteImageBufferSetIdentifier, std::unique_ptr<BufferSetBackendHandle>>&&);
void commitLayerTreeTransaction(IPC::Connection&, const RemoteLayerTreeTransaction&, const RemoteScrollingCoordinatorTransaction&);
virtual void didCommitLayerTree(IPC::Connection&, const RemoteLayerTreeTransaction&, const RemoteScrollingCoordinatorTransaction&) { }
void asyncSetLayerContents(WebCore::PlatformLayerIdentifier, ImageBufferBackendHandle&&, const WebCore::RenderingResourceIdentifier&);
void sendUpdateGeometry();
std::unique_ptr<RemoteLayerTreeHost> m_remoteLayerTreeHost;
bool m_isWaitingForDidUpdateGeometry { false };
void didRefreshDisplay(IPC::Connection*);
void didRefreshDisplay(ProcessState&, IPC::Connection&);
bool maybePauseDisplayRefreshCallbacks();
ProcessState m_webPageProxyProcessState;
HashMap<WebCore::ProcessIdentifier, ProcessState> m_remotePageProcessState;
WebCore::IntSize m_lastSentSize;
WebCore::IntSize m_lastSentMinimumSizeForAutoLayout;
WebCore::IntSize m_lastSentSizeToContentAutoSizeMaximumSize;
std::unique_ptr<RemoteLayerTreeHost> m_debugIndicatorLayerTreeHost;
RetainPtr<CALayer> m_tileMapHostLayer;
RetainPtr<CALayer> m_exposedRectIndicatorLayer;
Markable<IPC::AsyncReplyID> m_replyForUnhidingContent;
#if ASSERT_ENABLED
TransactionID m_lastVisibleTransactionID;
#endif
TransactionID m_transactionIDForPendingCACommit;
ActivityStateChangeID m_activityStateChangeID { ActivityStateChangeAsynchronous };
unsigned m_countOfTransactionsWithNonEmptyLayerChanges { 0 };
};
} // namespace WebKit
SPECIALIZE_TYPE_TRAITS_DRAWING_AREA_PROXY(RemoteLayerTreeDrawingAreaProxy, DrawingAreaType::RemoteLayerTree)
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