Ben Murdoch | 591b958 | 2013-07-10 11:41:44 +0100 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 1999 Lars Knoll (knoll@kde.org) |
| 3 | * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved. |
| 4 | * Copyright (C) 2013 Google Inc. All rights reserved. |
| 5 | * |
| 6 | * This library is free software; you can redistribute it and/or |
| 7 | * modify it under the terms of the GNU Library General Public |
| 8 | * License as published by the Free Software Foundation; either |
| 9 | * version 2 of the License, or (at your option) any later version. |
| 10 | * |
| 11 | * This library is distributed in the hope that it will be useful, |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 14 | * Library General Public License for more details. |
| 15 | * |
| 16 | * You should have received a copy of the GNU Library General Public License |
| 17 | * along with this library; see the file COPYING.LIB. If not, write to |
| 18 | * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
| 19 | * Boston, MA 02110-1301, USA. |
| 20 | * |
| 21 | */ |
| 22 | |
| 23 | #include "config.h" |
| 24 | #include "core/css/resolver/StyleResourceLoader.h" |
| 25 | |
| 26 | #include "CSSPropertyNames.h" |
| 27 | #include "core/css/CSSCursorImageValue.h" |
| 28 | #include "core/css/CSSImageValue.h" |
| 29 | #include "core/css/CSSSVGDocumentValue.h" |
| 30 | #include "core/css/CSSShaderValue.h" |
| 31 | #include "core/css/resolver/ElementStyleResources.h" |
| 32 | #include "core/loader/cache/CachedResourceLoader.h" |
| 33 | #include "core/platform/graphics/filters/custom/CustomFilterOperation.h" |
| 34 | #include "core/rendering/style/ContentData.h" |
| 35 | #include "core/rendering/style/CursorList.h" |
| 36 | #include "core/rendering/style/FillLayer.h" |
| 37 | #include "core/rendering/style/RenderStyle.h" |
| 38 | #include "core/rendering/style/StyleCachedImage.h" |
| 39 | #include "core/rendering/style/StyleCachedImageSet.h" |
| 40 | #include "core/rendering/style/StyleCachedShader.h" |
| 41 | #include "core/rendering/style/StyleCustomFilterProgram.h" |
| 42 | #include "core/rendering/style/StyleCustomFilterProgramCache.h" |
| 43 | #include "core/rendering/style/StyleGeneratedImage.h" |
| 44 | #include "core/rendering/style/StylePendingImage.h" |
| 45 | #include "core/rendering/style/StylePendingShader.h" |
| 46 | |
| 47 | namespace WebCore { |
| 48 | |
| 49 | StyleResourceLoader::StyleResourceLoader(CachedResourceLoader* cachedResourceLoader) |
| 50 | : m_cachedResourceLoader(cachedResourceLoader) |
| 51 | , m_customFilterProgramCache(StyleCustomFilterProgramCache::create()) |
| 52 | { |
| 53 | } |
| 54 | |
| 55 | void StyleResourceLoader::loadPendingSVGDocuments(RenderStyle* renderStyle, const ElementStyleResources& elementStyleResources) |
| 56 | { |
| 57 | if (!renderStyle->hasFilter() || elementStyleResources.pendingSVGDocuments().isEmpty()) |
| 58 | return; |
| 59 | |
| 60 | Vector<RefPtr<FilterOperation> >& filterOperations = renderStyle->mutableFilter().operations(); |
| 61 | for (unsigned i = 0; i < filterOperations.size(); ++i) { |
| 62 | RefPtr<FilterOperation> filterOperation = filterOperations.at(i); |
| 63 | if (filterOperation->getOperationType() == FilterOperation::REFERENCE) { |
| 64 | ReferenceFilterOperation* referenceFilter = static_cast<ReferenceFilterOperation*>(filterOperation.get()); |
| 65 | |
| 66 | CSSSVGDocumentValue* value = elementStyleResources.pendingSVGDocuments().get(referenceFilter); |
| 67 | if (!value) |
| 68 | continue; |
| 69 | CachedDocument* cachedDocument = value->load(m_cachedResourceLoader); |
| 70 | if (!cachedDocument) |
| 71 | continue; |
| 72 | |
| 73 | // Stash the CachedDocument on the reference filter. |
| 74 | referenceFilter->setCachedSVGDocumentReference(adoptPtr(new CachedSVGDocumentReference(cachedDocument))); |
| 75 | } |
| 76 | } |
| 77 | } |
| 78 | |
| 79 | PassRefPtr<StyleImage> StyleResourceLoader::loadPendingImage(StylePendingImage* pendingImage, float deviceScaleFactor) |
| 80 | { |
| 81 | if (pendingImage->cssImageValue()) { |
| 82 | CSSImageValue* imageValue = pendingImage->cssImageValue(); |
| 83 | return imageValue->cachedImage(m_cachedResourceLoader); |
| 84 | } |
| 85 | |
| 86 | if (pendingImage->cssImageGeneratorValue()) { |
| 87 | CSSImageGeneratorValue* imageGeneratorValue = pendingImage->cssImageGeneratorValue(); |
| 88 | imageGeneratorValue->loadSubimages(m_cachedResourceLoader); |
| 89 | return StyleGeneratedImage::create(imageGeneratorValue); |
| 90 | } |
| 91 | |
| 92 | if (pendingImage->cssCursorImageValue()) { |
| 93 | CSSCursorImageValue* cursorImageValue = pendingImage->cssCursorImageValue(); |
| 94 | return cursorImageValue->cachedImage(m_cachedResourceLoader, deviceScaleFactor); |
| 95 | } |
| 96 | |
| 97 | if (pendingImage->cssImageSetValue()) { |
| 98 | CSSImageSetValue* imageSetValue = pendingImage->cssImageSetValue(); |
| 99 | return imageSetValue->cachedImageSet(m_cachedResourceLoader, deviceScaleFactor); |
| 100 | } |
| 101 | |
| 102 | return 0; |
| 103 | } |
| 104 | |
| 105 | void StyleResourceLoader::loadPendingShapeImage(RenderStyle* renderStyle, ShapeValue* shapeValue) |
| 106 | { |
| 107 | if (!shapeValue) |
| 108 | return; |
| 109 | |
| 110 | StyleImage* image = shapeValue->image(); |
| 111 | if (!image || !image->isPendingImage()) |
| 112 | return; |
| 113 | |
| 114 | StylePendingImage* pendingImage = static_cast<StylePendingImage*>(image); |
| 115 | CSSImageValue* cssImageValue = pendingImage->cssImageValue(); |
| 116 | |
| 117 | ResourceLoaderOptions options = CachedResourceLoader::defaultCachedResourceOptions(); |
| 118 | options.requestOriginPolicy = RestrictToSameOrigin; |
| 119 | |
| 120 | shapeValue->setImage(cssImageValue->cachedImage(m_cachedResourceLoader, options)); |
| 121 | } |
| 122 | |
| 123 | void StyleResourceLoader::loadPendingImages(RenderStyle* style, const ElementStyleResources& elementStyleResources) |
| 124 | { |
| 125 | if (elementStyleResources.pendingImageProperties().isEmpty()) |
| 126 | return; |
| 127 | |
| 128 | PendingImagePropertyMap::const_iterator::Keys end = elementStyleResources.pendingImageProperties().end().keys(); |
| 129 | for (PendingImagePropertyMap::const_iterator::Keys it = elementStyleResources.pendingImageProperties().begin().keys(); it != end; ++it) { |
| 130 | CSSPropertyID currentProperty = *it; |
| 131 | |
| 132 | switch (currentProperty) { |
| 133 | case CSSPropertyBackgroundImage: { |
| 134 | for (FillLayer* backgroundLayer = style->accessBackgroundLayers(); backgroundLayer; backgroundLayer = backgroundLayer->next()) { |
| 135 | if (backgroundLayer->image() && backgroundLayer->image()->isPendingImage()) |
| 136 | backgroundLayer->setImage(loadPendingImage(static_cast<StylePendingImage*>(backgroundLayer->image()), elementStyleResources.deviceScaleFactor())); |
| 137 | } |
| 138 | break; |
| 139 | } |
| 140 | case CSSPropertyContent: { |
| 141 | for (ContentData* contentData = const_cast<ContentData*>(style->contentData()); contentData; contentData = contentData->next()) { |
| 142 | if (contentData->isImage()) { |
| 143 | StyleImage* image = static_cast<ImageContentData*>(contentData)->image(); |
| 144 | if (image->isPendingImage()) { |
| 145 | RefPtr<StyleImage> loadedImage = loadPendingImage(static_cast<StylePendingImage*>(image), elementStyleResources.deviceScaleFactor()); |
| 146 | if (loadedImage) |
| 147 | static_cast<ImageContentData*>(contentData)->setImage(loadedImage.release()); |
| 148 | } |
| 149 | } |
| 150 | } |
| 151 | break; |
| 152 | } |
| 153 | case CSSPropertyCursor: { |
| 154 | if (CursorList* cursorList = style->cursors()) { |
| 155 | for (size_t i = 0; i < cursorList->size(); ++i) { |
| 156 | CursorData& currentCursor = cursorList->at(i); |
| 157 | if (StyleImage* image = currentCursor.image()) { |
| 158 | if (image->isPendingImage()) |
| 159 | currentCursor.setImage(loadPendingImage(static_cast<StylePendingImage*>(image), elementStyleResources.deviceScaleFactor())); |
| 160 | } |
| 161 | } |
| 162 | } |
| 163 | break; |
| 164 | } |
| 165 | case CSSPropertyListStyleImage: { |
| 166 | if (style->listStyleImage() && style->listStyleImage()->isPendingImage()) |
| 167 | style->setListStyleImage(loadPendingImage(static_cast<StylePendingImage*>(style->listStyleImage()), elementStyleResources.deviceScaleFactor())); |
| 168 | break; |
| 169 | } |
| 170 | case CSSPropertyBorderImageSource: { |
| 171 | if (style->borderImageSource() && style->borderImageSource()->isPendingImage()) |
| 172 | style->setBorderImageSource(loadPendingImage(static_cast<StylePendingImage*>(style->borderImageSource()), elementStyleResources.deviceScaleFactor())); |
| 173 | break; |
| 174 | } |
| 175 | case CSSPropertyWebkitBoxReflect: { |
| 176 | if (StyleReflection* reflection = style->boxReflect()) { |
| 177 | const NinePieceImage& maskImage = reflection->mask(); |
| 178 | if (maskImage.image() && maskImage.image()->isPendingImage()) { |
| 179 | RefPtr<StyleImage> loadedImage = loadPendingImage(static_cast<StylePendingImage*>(maskImage.image()), elementStyleResources.deviceScaleFactor()); |
| 180 | reflection->setMask(NinePieceImage(loadedImage.release(), maskImage.imageSlices(), maskImage.fill(), maskImage.borderSlices(), maskImage.outset(), maskImage.horizontalRule(), maskImage.verticalRule())); |
| 181 | } |
| 182 | } |
| 183 | break; |
| 184 | } |
| 185 | case CSSPropertyWebkitMaskBoxImageSource: { |
| 186 | if (style->maskBoxImageSource() && style->maskBoxImageSource()->isPendingImage()) |
| 187 | style->setMaskBoxImageSource(loadPendingImage(static_cast<StylePendingImage*>(style->maskBoxImageSource()), elementStyleResources.deviceScaleFactor())); |
| 188 | break; |
| 189 | } |
| 190 | case CSSPropertyWebkitMaskImage: { |
| 191 | for (FillLayer* maskLayer = style->accessMaskLayers(); maskLayer; maskLayer = maskLayer->next()) { |
| 192 | if (maskLayer->image() && maskLayer->image()->isPendingImage()) |
| 193 | maskLayer->setImage(loadPendingImage(static_cast<StylePendingImage*>(maskLayer->image()), elementStyleResources.deviceScaleFactor())); |
| 194 | } |
| 195 | break; |
| 196 | } |
| 197 | case CSSPropertyWebkitShapeInside: |
| 198 | loadPendingShapeImage(style, style->shapeInside()); |
| 199 | break; |
| 200 | case CSSPropertyWebkitShapeOutside: |
| 201 | loadPendingShapeImage(style, style->shapeOutside()); |
| 202 | break; |
| 203 | default: |
| 204 | ASSERT_NOT_REACHED(); |
| 205 | } |
| 206 | } |
| 207 | } |
| 208 | |
| 209 | void StyleResourceLoader::loadPendingShaders(RenderStyle* style, const ElementStyleResources& elementStyleResources) |
| 210 | { |
| 211 | if (!style->hasFilter() || !elementStyleResources.hasPendingShaders()) |
| 212 | return; |
| 213 | |
| 214 | Vector<RefPtr<FilterOperation> >& filterOperations = style->mutableFilter().operations(); |
| 215 | for (unsigned i = 0; i < filterOperations.size(); ++i) { |
| 216 | RefPtr<FilterOperation> filterOperation = filterOperations.at(i); |
| 217 | if (filterOperation->getOperationType() == FilterOperation::CUSTOM) { |
| 218 | CustomFilterOperation* customFilter = static_cast<CustomFilterOperation*>(filterOperation.get()); |
| 219 | ASSERT(customFilter->program()); |
| 220 | StyleCustomFilterProgram* program = static_cast<StyleCustomFilterProgram*>(customFilter->program()); |
| 221 | // Note that the StylePendingShaders could be already resolved to StyleCachedShaders. That's because the rule was matched before. |
| 222 | // However, the StyleCustomFilterProgram that was initially created could have been removed from the cache in the meanwhile, |
| 223 | // meaning that we get a new StyleCustomFilterProgram here that is not yet in the cache, but already has loaded StyleShaders. |
| 224 | if (!program->hasPendingShaders() && program->inCache()) |
| 225 | continue; |
| 226 | RefPtr<StyleCustomFilterProgram> styleProgram = m_customFilterProgramCache->lookup(program); |
| 227 | if (styleProgram.get()) { |
| 228 | customFilter->setProgram(styleProgram.release()); |
| 229 | } else { |
| 230 | if (program->vertexShader() && program->vertexShader()->isPendingShader()) { |
| 231 | CSSShaderValue* shaderValue = static_cast<StylePendingShader*>(program->vertexShader())->cssShaderValue(); |
| 232 | program->setVertexShader(shaderValue->cachedShader(m_cachedResourceLoader)); |
| 233 | } |
| 234 | if (program->fragmentShader() && program->fragmentShader()->isPendingShader()) { |
| 235 | CSSShaderValue* shaderValue = static_cast<StylePendingShader*>(program->fragmentShader())->cssShaderValue(); |
| 236 | program->setFragmentShader(shaderValue->cachedShader(m_cachedResourceLoader)); |
| 237 | } |
| 238 | m_customFilterProgramCache->add(program); |
| 239 | } |
| 240 | } |
| 241 | } |
| 242 | } |
| 243 | |
| 244 | void StyleResourceLoader::loadPendingResources(RenderStyle* renderStyle, ElementStyleResources& elementStyleResources) |
| 245 | { |
| 246 | // Start loading images referenced by this style. |
| 247 | loadPendingImages(renderStyle, elementStyleResources); |
| 248 | |
| 249 | // Start loading the shaders referenced by this style. |
| 250 | loadPendingShaders(renderStyle, elementStyleResources); |
| 251 | |
| 252 | // Start loading the SVG Documents referenced by this style. |
| 253 | loadPendingSVGDocuments(renderStyle, elementStyleResources); |
| 254 | |
| 255 | // FIXME: Investigate if this clearing is necessary. |
| 256 | elementStyleResources.clear(); |
| 257 | } |
| 258 | |
| 259 | } |