| /* |
| * Copyright (C) 1999 Lars Knoll (knoll@kde.org) |
| * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved. |
| * |
| * This library is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Library General Public |
| * License as published by the Free Software Foundation; either |
| * version 2 of the License, or (at your option) any later version. |
| * |
| * This library is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Library General Public License for more details. |
| * |
| * You should have received a copy of the GNU Library General Public License |
| * along with this library; see the file COPYING.LIB. If not, write to |
| * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
| * Boston, MA 02110-1301, USA. |
| * |
| */ |
| |
| #ifndef StyleResolverState_h |
| #define StyleResolverState_h |
| |
| #include "CSSPropertyNames.h" |
| |
| #include "core/animation/css/CSSAnimations.h" |
| #include "core/css/CSSSVGDocumentValue.h" |
| #include "core/css/CSSToStyleMap.h" |
| #include "core/css/resolver/ElementResolveContext.h" |
| #include "core/css/resolver/ElementStyleResources.h" |
| #include "core/css/resolver/FontBuilder.h" |
| #include "core/dom/Element.h" |
| #include "core/rendering/style/CachedUAStyle.h" |
| #include "core/rendering/style/RenderStyle.h" |
| #include "core/rendering/style/StyleInheritedData.h" |
| |
| namespace WebCore { |
| |
| class FontDescription; |
| class RenderRegion; |
| |
| class StyleResolverState { |
| WTF_MAKE_NONCOPYABLE(StyleResolverState); |
| public: |
| StyleResolverState(Document&, Element*, RenderStyle* parentStyle = 0, RenderRegion* regionForStyling = 0); |
| ~StyleResolverState(); |
| |
| // In FontLoader and CanvasRenderingContext2D, we don't have an element to grab the document from. |
| // This is why we have to store the document separately. |
| Document& document() const { return m_document; } |
| // These are all just pass-through methods to ElementResolveContext. |
| Element* element() const { return m_elementContext.element(); } |
| const ContainerNode* parentNode() const { return m_elementContext.parentNode(); } |
| const RenderStyle* rootElementStyle() const { return m_elementContext.rootElementStyle(); } |
| EInsideLink elementLinkState() const { return m_elementContext.elementLinkState(); } |
| bool distributedToInsertionPoint() const { return m_elementContext.distributedToInsertionPoint(); } |
| |
| const ElementResolveContext& elementContext() const { return m_elementContext; } |
| |
| void setStyle(PassRefPtr<RenderStyle> style) { m_style = style; } |
| const RenderStyle* style() const { return m_style.get(); } |
| RenderStyle* style() { return m_style.get(); } |
| PassRefPtr<RenderStyle> takeStyle() { return m_style.release(); } |
| |
| void setAnimationUpdate(PassOwnPtr<CSSAnimationUpdate> update) { m_animationUpdate = update; } |
| const CSSAnimationUpdate* animationUpdate() { return m_animationUpdate.get(); } |
| PassOwnPtr<CSSAnimationUpdate> takeAnimationUpdate() { return m_animationUpdate.release(); } |
| |
| void setParentStyle(PassRefPtr<RenderStyle> parentStyle) { m_parentStyle = parentStyle; } |
| const RenderStyle* parentStyle() const { return m_parentStyle.get(); } |
| RenderStyle* parentStyle() { return m_parentStyle.get(); } |
| |
| const RenderRegion* regionForStyling() const { return m_regionForStyling; } |
| |
| // FIXME: These are effectively side-channel "out parameters" for the various |
| // map functions. When we map from CSS to style objects we use this state object |
| // to track various meta-data about that mapping (e.g. if it's cache-able). |
| // We need to move this data off of StyleResolverState and closer to the |
| // objects it applies to. Possibly separating (immutable) inputs from (mutable) outputs. |
| void setApplyPropertyToRegularStyle(bool isApply) { m_applyPropertyToRegularStyle = isApply; } |
| void setApplyPropertyToVisitedLinkStyle(bool isApply) { m_applyPropertyToVisitedLinkStyle = isApply; } |
| bool applyPropertyToRegularStyle() const { return m_applyPropertyToRegularStyle; } |
| bool applyPropertyToVisitedLinkStyle() const { return m_applyPropertyToVisitedLinkStyle; } |
| |
| // Holds all attribute names found while applying "content" properties that contain an "attr()" value. |
| Vector<AtomicString>& contentAttrValues() { return m_contentAttrValues; } |
| |
| void setLineHeightValue(CSSValue* value) { m_lineHeightValue = value; } |
| CSSValue* lineHeightValue() { return m_lineHeightValue; } |
| |
| void cacheUserAgentBorderAndBackground() { m_cachedUAStyle = CachedUAStyle(style()); } |
| const CachedUAStyle& cachedUAStyle() const { return m_cachedUAStyle; } |
| |
| ElementStyleResources& elementStyleResources() { return m_elementStyleResources; } |
| const CSSToStyleMap& styleMap() const { return m_styleMap; } |
| CSSToStyleMap& styleMap() { return m_styleMap; } |
| |
| // FIXME: Once styleImage can be made to not take a StyleResolverState |
| // this convenience function should be removed. As-is, without this, call |
| // sites are extremely verbose. |
| PassRefPtr<StyleImage> styleImage(CSSPropertyID propertyId, CSSValue* value) |
| { |
| return m_elementStyleResources.styleImage(document().textLinkColors(), style()->visitedDependentColor(CSSPropertyColor), propertyId, value); |
| } |
| |
| FontBuilder& fontBuilder() { return m_fontBuilder; } |
| // FIXME: These exist as a primitive way to track mutations to font-related properties |
| // on a RenderStyle. As designed, these are very error-prone, as some callers |
| // set these directly on the RenderStyle w/o telling us. Presumably we'll |
| // want to design a better wrapper around RenderStyle for tracking these mutations |
| // and separate it from StyleResolverState. |
| const FontDescription& parentFontDescription() { return m_parentStyle->fontDescription(); } |
| void setZoom(float f) { m_fontBuilder.didChangeFontParameters(m_style->setZoom(f)); } |
| void setEffectiveZoom(float f) { m_fontBuilder.didChangeFontParameters(m_style->setEffectiveZoom(f)); } |
| void setWritingMode(WritingMode writingMode) { m_fontBuilder.didChangeFontParameters(m_style->setWritingMode(writingMode)); } |
| void setTextOrientation(TextOrientation textOrientation) { m_fontBuilder.didChangeFontParameters(m_style->setTextOrientation(textOrientation)); } |
| |
| // SVG handles zooming in a different way compared to CSS. The whole document is scaled instead |
| // of each individual length value in the render style / tree. CSSPrimitiveValue::computeLength*() |
| // multiplies each resolved length with the zoom multiplier - so for SVG we need to disable that. |
| // Though all CSS values that can be applied to outermost <svg> elements (width/height/border/padding...) |
| // need to respect the scaling. RenderBox (the parent class of RenderSVGRoot) grabs values like |
| // width/height/border/padding/... from the RenderStyle -> for SVG these values would never scale, |
| // if we'd pass a 1.0 zoom factor everyhwere. So we only pass a zoom factor of 1.0 for specific |
| // properties that are NOT allowed to scale within a zoomed SVG document (letter/word-spacing/font-size). |
| bool useSVGZoomRules() const { return element() && element()->isSVGElement(); } |
| |
| private: |
| friend class StyleResolveScope; |
| |
| void initElement(Element*); |
| |
| ElementResolveContext m_elementContext; |
| Document& m_document; |
| |
| // m_style is the primary output for each element's style resolve. |
| RefPtr<RenderStyle> m_style; |
| |
| // m_parentStyle is not always just element->parentNode()->style() |
| // so we keep it separate from m_elementContext. |
| RefPtr<RenderStyle> m_parentStyle; |
| |
| OwnPtr<CSSAnimationUpdate> m_animationUpdate; |
| |
| // Required to ASSERT in applyProperties. |
| // FIXME: Regions should not need special state on StyleResolverState |
| // no other @rule does. |
| RenderRegion* m_regionForStyling; |
| |
| bool m_applyPropertyToRegularStyle; |
| bool m_applyPropertyToVisitedLinkStyle; |
| |
| CSSValue* m_lineHeightValue; |
| |
| FontBuilder m_fontBuilder; |
| |
| CachedUAStyle m_cachedUAStyle; |
| |
| ElementStyleResources m_elementStyleResources; |
| // CSSToStyleMap is a pure-logic class and only contains |
| // a back-pointer to this object. |
| CSSToStyleMap m_styleMap; |
| Vector<AtomicString> m_contentAttrValues; |
| }; |
| |
| } // namespace WebCore |
| |
| #endif // StyleResolverState_h |