| /* |
| * Copyright (C) 2011 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. |
| */ |
| |
| #ifndef DrawingAreaImpl_h |
| #define DrawingAreaImpl_h |
| |
| #include "DrawingArea.h" |
| #include "LayerTreeHost.h" |
| #include "Region.h" |
| #include "RunLoop.h" |
| |
| namespace WebKit { |
| |
| class UpdateInfo; |
| |
| class DrawingAreaImpl : public DrawingArea { |
| public: |
| static PassOwnPtr<DrawingAreaImpl> create(WebPage*, const WebPageCreationParameters&); |
| virtual ~DrawingAreaImpl(); |
| |
| void setLayerHostNeedsDisplay(); |
| void layerHostDidFlushLayers(); |
| |
| private: |
| DrawingAreaImpl(WebPage*, const WebPageCreationParameters&); |
| |
| // DrawingArea |
| virtual void setNeedsDisplay(const WebCore::IntRect&); |
| virtual void scroll(const WebCore::IntRect& scrollRect, const WebCore::IntSize& scrollOffset); |
| virtual void forceRepaint(); |
| |
| virtual void didInstallPageOverlay(); |
| virtual void didUninstallPageOverlay(); |
| virtual void setPageOverlayNeedsDisplay(const WebCore::IntRect&); |
| |
| virtual void setRootCompositingLayer(WebCore::GraphicsLayer*); |
| virtual void scheduleCompositingLayerSync(); |
| virtual void syncCompositingLayers(); |
| virtual void didReceiveMessage(CoreIPC::Connection*, CoreIPC::MessageID, CoreIPC::ArgumentDecoder*); |
| |
| // CoreIPC message handlers. |
| virtual void updateBackingStoreState(uint64_t backingStoreStateID, bool respondImmediately, const WebCore::IntSize&, const WebCore::IntSize& scrollOffset); |
| virtual void didUpdate(); |
| virtual void suspendPainting(); |
| virtual void resumePainting(); |
| |
| void sendDidUpdateBackingStoreState(); |
| |
| void enterAcceleratedCompositingMode(WebCore::GraphicsLayer*); |
| void exitAcceleratedCompositingModeSoon(); |
| void exitAcceleratedCompositingMode(); |
| |
| void scheduleDisplay(); |
| void displayTimerFired(); |
| void display(); |
| void display(UpdateInfo&); |
| |
| uint64_t m_backingStoreStateID; |
| |
| Region m_dirtyRegion; |
| WebCore::IntRect m_scrollRect; |
| WebCore::IntSize m_scrollOffset; |
| |
| // Whether we're currently processing an UpdateBackingStoreState message. |
| bool m_inUpdateBackingStoreState; |
| |
| // When true, we should send an UpdateBackingStoreState message instead of any other messages |
| // we normally send to the UI process. |
| bool m_shouldSendDidUpdateBackingStoreState; |
| |
| // Whether we're waiting for a DidUpdate message. Used for throttling paints so that the |
| // web process won't paint more frequent than the UI process can handle. |
| bool m_isWaitingForDidUpdate; |
| |
| // Whether painting is suspended. We'll still keep track of the dirty region but we |
| // won't paint until painting has resumed again. |
| bool m_isPaintingSuspended; |
| bool m_alwaysUseCompositing; |
| |
| double m_lastDisplayTime; |
| |
| RunLoop::Timer<DrawingAreaImpl> m_displayTimer; |
| RunLoop::Timer<DrawingAreaImpl> m_exitCompositingTimer; |
| |
| // The layer tree host that handles accelerated compositing. |
| RefPtr<LayerTreeHost> m_layerTreeHost; |
| }; |
| |
| } // namespace WebKit |
| |
| #endif // DrawingAreaImpl_h |