DrawingAreaImpl.h revision 2bde8e466a4451c7319e3a072d118917957d6554
165f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch/* 265f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch * Copyright (C) 2011 Apple Inc. All rights reserved. 365f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch * 465f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch * Redistribution and use in source and binary forms, with or without 565f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch * modification, are permitted provided that the following conditions 665f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch * are met: 765f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch * 1. Redistributions of source code must retain the above copyright 865f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch * notice, this list of conditions and the following disclaimer. 965f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch * 2. Redistributions in binary form must reproduce the above copyright 1065f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch * notice, this list of conditions and the following disclaimer in the 1165f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch * documentation and/or other materials provided with the distribution. 1265f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch * 1365f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' 1465f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 1565f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 1665f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS 1765f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 1865f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 1965f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 2065f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 2165f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 2265f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 2365f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch * THE POSSIBILITY OF SUCH DAMAGE. 2465f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch */ 2565f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch 2665f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch#ifndef DrawingAreaImpl_h 2765f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch#define DrawingAreaImpl_h 2865f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch 2965f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch#include "DrawingArea.h" 302fc2651226baac27029e38c9d6ef883fa32084dbSteve Block#include "LayerTreeHost.h" 3165f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch#include "Region.h" 3265f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch#include "RunLoop.h" 3365f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch 3465f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdochnamespace WebKit { 3565f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch 362fc2651226baac27029e38c9d6ef883fa32084dbSteve Blockclass UpdateInfo; 3765f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch 3865f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdochclass DrawingAreaImpl : public DrawingArea { 3965f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdochpublic: 4081bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch static PassOwnPtr<DrawingAreaImpl> create(WebPage*, const WebPageCreationParameters&); 4165f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch virtual ~DrawingAreaImpl(); 4265f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch 4381bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch void layerHostDidFlushLayers(); 4481bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch 4565f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdochprivate: 46ab9e7a118cf1ea2e3a93dce683b2ded3e7291ddbBen Murdoch DrawingAreaImpl(WebPage*, const WebPageCreationParameters&); 4765f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch 4865f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch // DrawingArea 4965f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch virtual void setNeedsDisplay(const WebCore::IntRect&); 50ab9e7a118cf1ea2e3a93dce683b2ded3e7291ddbBen Murdoch virtual void scroll(const WebCore::IntRect& scrollRect, const WebCore::IntSize& scrollOffset); 512fc2651226baac27029e38c9d6ef883fa32084dbSteve Block virtual void forceRepaint(); 522fc2651226baac27029e38c9d6ef883fa32084dbSteve Block 532fc2651226baac27029e38c9d6ef883fa32084dbSteve Block virtual void didInstallPageOverlay(); 542fc2651226baac27029e38c9d6ef883fa32084dbSteve Block virtual void didUninstallPageOverlay(); 552fc2651226baac27029e38c9d6ef883fa32084dbSteve Block virtual void setPageOverlayNeedsDisplay(const WebCore::IntRect&); 562fc2651226baac27029e38c9d6ef883fa32084dbSteve Block 5765f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch virtual void setRootCompositingLayer(WebCore::GraphicsLayer*); 5865f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch virtual void scheduleCompositingLayerSync(); 5965f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch virtual void syncCompositingLayers(); 6065f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch virtual void didReceiveMessage(CoreIPC::Connection*, CoreIPC::MessageID, CoreIPC::ArgumentDecoder*); 6165f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch 6265f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch // CoreIPC message handlers. 6381bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch virtual void updateBackingStoreState(uint64_t backingStoreStateID, bool respondImmediately, const WebCore::IntSize&, const WebCore::IntSize& scrollOffset); 6465f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch virtual void didUpdate(); 65ab9e7a118cf1ea2e3a93dce683b2ded3e7291ddbBen Murdoch virtual void suspendPainting(); 66ab9e7a118cf1ea2e3a93dce683b2ded3e7291ddbBen Murdoch virtual void resumePainting(); 6765f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch 6881bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch void sendDidUpdateBackingStoreState(); 6981bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch 702fc2651226baac27029e38c9d6ef883fa32084dbSteve Block void enterAcceleratedCompositingMode(WebCore::GraphicsLayer*); 712fc2651226baac27029e38c9d6ef883fa32084dbSteve Block void exitAcceleratedCompositingModeSoon(); 722fc2651226baac27029e38c9d6ef883fa32084dbSteve Block void exitAcceleratedCompositingMode(); 732fc2651226baac27029e38c9d6ef883fa32084dbSteve Block 7465f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch void scheduleDisplay(); 752bde8e466a4451c7319e3a072d118917957d6554Steve Block void displayTimerFired(); 7665f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch void display(); 7765f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch void display(UpdateInfo&); 7865f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch 7981bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch uint64_t m_backingStoreStateID; 8081bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch 8165f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch Region m_dirtyRegion; 8265f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch WebCore::IntRect m_scrollRect; 83ab9e7a118cf1ea2e3a93dce683b2ded3e7291ddbBen Murdoch WebCore::IntSize m_scrollOffset; 842fc2651226baac27029e38c9d6ef883fa32084dbSteve Block 8581bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch // Whether we're currently processing an UpdateBackingStoreState message. 8681bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch bool m_inUpdateBackingStoreState; 8781bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch 8881bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch // When true, we should send an UpdateBackingStoreState message instead of any other messages 8981bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch // we normally send to the UI process. 9081bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch bool m_shouldSendDidUpdateBackingStoreState; 912fc2651226baac27029e38c9d6ef883fa32084dbSteve Block 9265f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch // Whether we're waiting for a DidUpdate message. Used for throttling paints so that the 9365f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch // web process won't paint more frequent than the UI process can handle. 9465f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch bool m_isWaitingForDidUpdate; 95ab9e7a118cf1ea2e3a93dce683b2ded3e7291ddbBen Murdoch 96ab9e7a118cf1ea2e3a93dce683b2ded3e7291ddbBen Murdoch // Whether painting is suspended. We'll still keep track of the dirty region but we 97ab9e7a118cf1ea2e3a93dce683b2ded3e7291ddbBen Murdoch // won't paint until painting has resumed again. 98ab9e7a118cf1ea2e3a93dce683b2ded3e7291ddbBen Murdoch bool m_isPaintingSuspended; 9981bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch bool m_alwaysUseCompositing; 100ab9e7a118cf1ea2e3a93dce683b2ded3e7291ddbBen Murdoch 1012bde8e466a4451c7319e3a072d118917957d6554Steve Block double m_lastDisplayTime; 1022bde8e466a4451c7319e3a072d118917957d6554Steve Block 10365f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch RunLoop::Timer<DrawingAreaImpl> m_displayTimer; 1042fc2651226baac27029e38c9d6ef883fa32084dbSteve Block RunLoop::Timer<DrawingAreaImpl> m_exitCompositingTimer; 1052fc2651226baac27029e38c9d6ef883fa32084dbSteve Block 1062fc2651226baac27029e38c9d6ef883fa32084dbSteve Block // The layer tree host that handles accelerated compositing. 1072fc2651226baac27029e38c9d6ef883fa32084dbSteve Block RefPtr<LayerTreeHost> m_layerTreeHost; 10865f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch}; 10965f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch 11065f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch} // namespace WebKit 11165f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch 11265f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch#endif // DrawingAreaImpl_h 113