1/* 2 * Copyright (C) 2012 Apple Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' 14 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 15 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS 17 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 18 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 19 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 20 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 21 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 22 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 23 * THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26#include "config.h" 27#include "WebRenderLayer.h" 28 29#include "WebPage.h" 30#include "WebString.h" 31#include <WebCore/Frame.h> 32#include <WebCore/FrameLoader.h> 33#include <WebCore/FrameLoaderClient.h> 34#include <WebCore/RenderLayer.h> 35#include <WebCore/RenderLayerBacking.h> 36#include <WebCore/RenderView.h> 37#include <WebCore/StyledElement.h> 38 39using namespace WebCore; 40 41namespace WebKit { 42 43PassRefPtr<WebRenderLayer> WebRenderLayer::create(WebPage* page) 44{ 45 Frame* mainFrame = page->mainFrame(); 46 if (!mainFrame) 47 return 0; 48 49 if (!mainFrame->loader()->client()->hasHTMLView()) 50 return 0; 51 52 RenderView* contentRenderer = mainFrame->contentRenderer(); 53 if (!contentRenderer) 54 return 0; 55 56 RenderLayer* rootLayer = contentRenderer->layer(); 57 if (!rootLayer) 58 return 0; 59 60 return adoptRef(new WebRenderLayer(rootLayer)); 61} 62 63PassRefPtr<MutableArray> WebRenderLayer::createArrayFromLayerList(Vector<RenderLayer*>* list) 64{ 65 if (!list || !list->size()) 66 return 0; 67 68 RefPtr<MutableArray> array = MutableArray::create(); 69 for (size_t i = 0; i < list->size(); ++i) { 70 RefPtr<WebRenderLayer> layer = adoptRef(new WebRenderLayer(list->at(i))); 71 array->append(layer.get()); 72 } 73 74 return array.release(); 75} 76 77WebRenderLayer::WebRenderLayer(RenderLayer* layer) 78{ 79 m_renderer = WebRenderObject::create(layer->renderer()); 80 m_isReflection = layer->isReflection(); 81 82#if USE(ACCELERATED_COMPOSITING) 83 if (layer->isComposited()) { 84 RenderLayerBacking* backing = layer->backing(); 85 m_isClipping = backing->hasClippingLayer(); 86 m_isClipped = backing->hasAncestorClippingLayer(); 87 switch (backing->compositingLayerType()) { 88 case NormalCompositingLayer: 89 m_compositingLayerType = Normal; 90 break; 91 case TiledCompositingLayer: 92 m_compositingLayerType = Tiled; 93 break; 94 case MediaCompositingLayer: 95 m_compositingLayerType = Media; 96 break; 97 case ContainerCompositingLayer: 98 m_compositingLayerType = Container; 99 break; 100 } 101 } else { 102#endif 103 m_isClipping = false; 104 m_isClipped = false; 105 m_compositingLayerType = None; 106#if USE(ACCELERATED_COMPOSITING) 107 } 108#endif 109 110 m_absoluteBoundingBox = layer->absoluteBoundingBox(); 111 112 m_negativeZOrderList = createArrayFromLayerList(layer->negZOrderList()); 113 m_normalFlowList = createArrayFromLayerList(layer->normalFlowList()); 114 m_positiveZOrderList = createArrayFromLayerList(layer->posZOrderList()); 115} 116 117} // namespace WebKit 118