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/*
* Copyright (C) 2012-2016 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 "RemoteLayerTreeHost.h"
#include "TransactionID.h"
#include <WebCore/AnimationFrameRate.h>
#include <WebCore/FloatPoint.h>
#include <WebCore/IntPoint.h>
#include <WebCore/IntSize.h>
OBJC_CLASS WKOneShotDisplayLinkHandler;
namespace WebKit {
class RemoteLayerTreeTransaction;
class RemoteScrollingCoordinatorTransaction;
class RemoteLayerTreeDrawingAreaProxy final : public DrawingAreaProxy {
public:
RemoteLayerTreeDrawingAreaProxy(WebPageProxy&, WebProcessProxy&);
virtual ~RemoteLayerTreeDrawingAreaProxy();
const RemoteLayerTreeHost& remoteLayerTreeHost() const { return *m_remoteLayerTreeHost; }
std::unique_ptr<RemoteLayerTreeHost> detachRemoteLayerTreeHost();
void acceleratedAnimationDidStart(uint64_t layerID, const String& key, MonotonicTime startTime);
void acceleratedAnimationDidEnd(uint64_t layerID, const String& key);
TransactionID nextLayerTreeTransactionID() const { return m_pendingLayerTreeTransactionID.next(); }
TransactionID lastCommittedLayerTreeTransactionID() const { return m_transactionIDForPendingCACommit; }
void didRefreshDisplay();
bool hasDebugIndicator() const { return !!m_debugIndicatorLayerTreeHost; }
CALayer *layerWithIDForTesting(uint64_t) const;
private:
void sizeDidChange() final;
void deviceScaleFactorDidChange() final;
void windowKindDidChange() final;
void didUpdateGeometry() final;
// For now, all callbacks are called before committing changes, because that's what the only client requires.
// Once we have other callbacks, it may make sense to have a before-commit/after-commit option.
void dispatchAfterEnsuringDrawing(WTF::Function<void (CallbackBase::Error)>&&) final;
#if PLATFORM(MAC)
void didChangeViewExposedRect() final;
#endif
#if PLATFORM(IOS_FAMILY)
WKOneShotDisplayLinkHandler *displayLinkHandler();
#endif
float indicatorScale(WebCore::IntSize contentsSize) const;
void updateDebugIndicator() final;
void updateDebugIndicator(WebCore::IntSize contentsSize, bool rootLayerChanged, float scale, const WebCore::IntPoint& scrollPosition);
void updateDebugIndicatorPosition();
void initializeDebugIndicator();
void waitForDidUpdateActivityState(ActivityStateChangeID) final;
void hideContentUntilPendingUpdate() final;
void hideContentUntilAnyUpdate() final;
bool hasVisibleContent() const final;
void prepareForAppSuspension() final;
WebCore::FloatPoint indicatorLocation() const;
// IPC::MessageReceiver
void didReceiveMessage(IPC::Connection&, IPC::Decoder&) final;
// Message handlers
void setPreferredFramesPerSecond(WebCore::FramesPerSecond);
void willCommitLayerTree(TransactionID);
void commitLayerTree(const RemoteLayerTreeTransaction&, const RemoteScrollingCoordinatorTransaction&);
void sendUpdateGeometry();
std::unique_ptr<RemoteLayerTreeHost> m_remoteLayerTreeHost;
bool m_isWaitingForDidUpdateGeometry { false };
enum DidUpdateMessageState { DoesNotNeedDidUpdate, NeedsDidUpdate, MissedCommit };
DidUpdateMessageState m_didUpdateMessageState { DoesNotNeedDidUpdate };
WebCore::IntSize m_lastSentSize;
std::unique_ptr<RemoteLayerTreeHost> m_debugIndicatorLayerTreeHost;
RetainPtr<CALayer> m_tileMapHostLayer;
RetainPtr<CALayer> m_exposedRectIndicatorLayer;
TransactionID m_pendingLayerTreeTransactionID;
TransactionID m_lastVisibleTransactionID;
TransactionID m_transactionIDForPendingCACommit;
TransactionID m_transactionIDForUnhidingContent;
ActivityStateChangeID m_activityStateChangeID { ActivityStateChangeAsynchronous };
CallbackMap m_callbacks;
RetainPtr<WKOneShotDisplayLinkHandler> m_displayLinkHandler;
};
} // namespace WebKit
SPECIALIZE_TYPE_TRAITS_DRAWING_AREA_PROXY(RemoteLayerTreeDrawingAreaProxy, DrawingAreaType::RemoteLayerTree)
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