/* * 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 "Region.h" #include "RunLoop.h" namespace WebKit { struct UpdateInfo; class DrawingAreaImpl : public DrawingArea { public: static PassRefPtr create(DrawingAreaInfo::Identifier, WebPage*); virtual ~DrawingAreaImpl(); private: DrawingAreaImpl(DrawingAreaInfo::Identifier, WebPage*); // DrawingArea virtual void setNeedsDisplay(const WebCore::IntRect&); virtual void scroll(const WebCore::IntRect& scrollRect, const WebCore::IntSize& scrollDelta); virtual void attachCompositingContext(); virtual void detachCompositingContext(); 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 setSize(const WebCore::IntSize&); virtual void didUpdate(); void scheduleDisplay(); void display(); void display(UpdateInfo&); Region m_dirtyRegion; WebCore::IntRect m_scrollRect; WebCore::IntSize m_scrollDelta; // 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; RunLoop::Timer m_displayTimer; }; } // namespace WebKit #endif // DrawingAreaImpl_h