| /* |
| Copyright (C) 2008 Eric Seidel <eric@webkit.org> |
| Copyright (C) 2004, 2005, 2007 Nikolas Zimmermann <zimmermann@kde.org> |
| 2004, 2005, 2007, 2010 Rob Buis <buis@kde.org> |
| Copyright (C) 2005, 2006 Apple Computer, Inc. |
| |
| 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. |
| */ |
| |
| #include "config.h" |
| |
| #if ENABLE(SVG) |
| #include "CSSInheritedValue.h" |
| #include "CSSInitialValue.h" |
| #include "CSSParser.h" |
| #include "CSSPropertyNames.h" |
| #include "CSSValueKeywords.h" |
| #include "CSSValueList.h" |
| #include "RenderTheme.h" |
| #include "SVGPaint.h" |
| |
| using namespace std; |
| |
| namespace WebCore { |
| |
| bool CSSParser::parseSVGValue(CSSPropertyID propId, bool important) |
| { |
| CSSParserValue* value = m_valueList->current(); |
| if (!value) |
| return false; |
| |
| int id = value->id; |
| |
| bool valid_primitive = false; |
| RefPtr<CSSValue> parsedValue; |
| |
| switch (propId) { |
| /* The comment to the right defines all valid value of these |
| * properties as defined in SVG 1.1, Appendix N. Property index */ |
| case CSSPropertyAlignmentBaseline: |
| // auto | baseline | before-edge | text-before-edge | middle | |
| // central | after-edge | text-after-edge | ideographic | alphabetic | |
| // hanging | mathematical | inherit |
| if (id == CSSValueAuto || id == CSSValueBaseline || id == CSSValueMiddle || |
| (id >= CSSValueBeforeEdge && id <= CSSValueMathematical)) |
| valid_primitive = true; |
| break; |
| |
| case CSSPropertyBaselineShift: |
| // baseline | super | sub | <percentage> | <length> | inherit |
| if (id == CSSValueBaseline || id == CSSValueSub || |
| id >= CSSValueSuper) |
| valid_primitive = true; |
| else |
| valid_primitive = validUnit(value, FLength | FPercent, SVGAttributeMode); |
| break; |
| |
| case CSSPropertyDominantBaseline: |
| // auto | use-script | no-change | reset-size | ideographic | |
| // alphabetic | hanging | mathematical | central | middle | |
| // text-after-edge | text-before-edge | inherit |
| if (id == CSSValueAuto || id == CSSValueMiddle || |
| (id >= CSSValueUseScript && id <= CSSValueResetSize) || |
| (id >= CSSValueCentral && id <= CSSValueMathematical)) |
| valid_primitive = true; |
| break; |
| |
| case CSSPropertyEnableBackground: |
| // accumulate | new [x] [y] [width] [height] | inherit |
| if (id == CSSValueAccumulate) // TODO : new |
| valid_primitive = true; |
| break; |
| |
| case CSSPropertyMarkerStart: |
| case CSSPropertyMarkerMid: |
| case CSSPropertyMarkerEnd: |
| case CSSPropertyMask: |
| if (id == CSSValueNone) |
| valid_primitive = true; |
| else if (value->unit == CSSPrimitiveValue::CSS_URI) { |
| parsedValue = CSSPrimitiveValue::create(value->string, CSSPrimitiveValue::CSS_URI); |
| if (parsedValue) |
| m_valueList->next(); |
| } |
| break; |
| |
| case CSSPropertyClipRule: // nonzero | evenodd | inherit |
| case CSSPropertyFillRule: |
| if (id == CSSValueNonzero || id == CSSValueEvenodd) |
| valid_primitive = true; |
| break; |
| |
| case CSSPropertyStrokeMiterlimit: // <miterlimit> | inherit |
| valid_primitive = validUnit(value, FNumber | FNonNeg, SVGAttributeMode); |
| break; |
| |
| case CSSPropertyStrokeLinejoin: // miter | round | bevel | inherit |
| if (id == CSSValueMiter || id == CSSValueRound || id == CSSValueBevel) |
| valid_primitive = true; |
| break; |
| |
| case CSSPropertyStrokeLinecap: // butt | round | square | inherit |
| if (id == CSSValueButt || id == CSSValueRound || id == CSSValueSquare) |
| valid_primitive = true; |
| break; |
| |
| case CSSPropertyStrokeOpacity: // <opacity-value> | inherit |
| case CSSPropertyFillOpacity: |
| case CSSPropertyStopOpacity: |
| case CSSPropertyFloodOpacity: |
| valid_primitive = (!id && validUnit(value, FNumber | FPercent, SVGAttributeMode)); |
| break; |
| |
| case CSSPropertyShapeRendering: |
| // auto | optimizeSpeed | crispEdges | geometricPrecision | inherit |
| if (id == CSSValueAuto || id == CSSValueOptimizespeed || |
| id == CSSValueCrispedges || id == CSSValueGeometricprecision) |
| valid_primitive = true; |
| break; |
| |
| case CSSPropertyImageRendering: // auto | optimizeSpeed | |
| case CSSPropertyColorRendering: // optimizeQuality | inherit |
| if (id == CSSValueAuto || id == CSSValueOptimizespeed || |
| id == CSSValueOptimizequality) |
| valid_primitive = true; |
| break; |
| |
| case CSSPropertyColorProfile: // auto | sRGB | <name> | <uri> inherit |
| if (id == CSSValueAuto || id == CSSValueSrgb) |
| valid_primitive = true; |
| break; |
| |
| case CSSPropertyColorInterpolation: // auto | sRGB | linearRGB | inherit |
| case CSSPropertyColorInterpolationFilters: |
| if (id == CSSValueAuto || id == CSSValueSrgb || id == CSSValueLinearrgb) |
| valid_primitive = true; |
| break; |
| |
| /* Start of supported CSS properties with validation. This is needed for parseShortHand to work |
| * correctly and allows optimization in applyRule(..) |
| */ |
| |
| case CSSPropertyTextAnchor: // start | middle | end | inherit |
| if (id == CSSValueStart || id == CSSValueMiddle || id == CSSValueEnd) |
| valid_primitive = true; |
| break; |
| |
| case CSSPropertyGlyphOrientationVertical: // auto | <angle> | inherit |
| if (id == CSSValueAuto) { |
| valid_primitive = true; |
| break; |
| } |
| /* fallthrough intentional */ |
| case CSSPropertyGlyphOrientationHorizontal: // <angle> (restricted to _deg_ per SVG 1.1 spec) | inherit |
| if (value->unit == CSSPrimitiveValue::CSS_DEG || value->unit == CSSPrimitiveValue::CSS_NUMBER) { |
| parsedValue = CSSPrimitiveValue::create(value->fValue, CSSPrimitiveValue::CSS_DEG); |
| |
| if (parsedValue) |
| m_valueList->next(); |
| } |
| break; |
| |
| case CSSPropertyFill: // <paint> | inherit |
| case CSSPropertyStroke: // <paint> | inherit |
| { |
| if (id == CSSValueNone) |
| parsedValue = SVGPaint::createNone(); |
| else if (id == CSSValueCurrentcolor) |
| parsedValue = SVGPaint::createCurrentColor(); |
| else if ((id >= CSSValueActiveborder && id <= CSSValueWindowtext) || id == CSSValueMenu) |
| parsedValue = SVGPaint::createColor(RenderTheme::defaultTheme()->systemColor(id)); |
| else if (value->unit == CSSPrimitiveValue::CSS_URI) { |
| RGBA32 c = Color::transparent; |
| if (m_valueList->next()) { |
| if (parseColorFromValue(m_valueList->current(), c)) |
| parsedValue = SVGPaint::createURIAndColor(value->string, c); |
| else if (m_valueList->current()->id == CSSValueNone) |
| parsedValue = SVGPaint::createURIAndNone(value->string); |
| } |
| if (!parsedValue) |
| parsedValue = SVGPaint::createURI(value->string); |
| } else |
| parsedValue = parseSVGPaint(); |
| |
| if (parsedValue) |
| m_valueList->next(); |
| } |
| break; |
| |
| case CSSPropertyStopColor: // TODO : icccolor |
| case CSSPropertyFloodColor: |
| case CSSPropertyLightingColor: |
| if ((id >= CSSValueAqua && id <= CSSValueWindowtext) || |
| (id >= CSSValueAliceblue && id <= CSSValueYellowgreen)) |
| parsedValue = SVGColor::createFromString(value->string); |
| else if (id == CSSValueCurrentcolor) |
| parsedValue = SVGColor::createCurrentColor(); |
| else // TODO : svgcolor (iccColor) |
| parsedValue = parseSVGColor(); |
| |
| if (parsedValue) |
| m_valueList->next(); |
| |
| break; |
| |
| case CSSPropertyVectorEffect: // none | non-scaling-stroke | inherit |
| if (id == CSSValueNone || id == CSSValueNonScalingStroke) |
| valid_primitive = true; |
| break; |
| |
| case CSSPropertyWritingMode: |
| // lr-tb | rl_tb | tb-rl | lr | rl | tb | inherit |
| if (id == CSSValueLrTb || id == CSSValueRlTb || id == CSSValueTbRl || id == CSSValueLr || id == CSSValueRl || id == CSSValueTb) |
| valid_primitive = true; |
| break; |
| |
| case CSSPropertyStrokeWidth: // <length> | inherit |
| case CSSPropertyStrokeDashoffset: |
| valid_primitive = validUnit(value, FLength | FPercent, SVGAttributeMode); |
| break; |
| case CSSPropertyStrokeDasharray: // none | <dasharray> | inherit |
| if (id == CSSValueNone) |
| valid_primitive = true; |
| else |
| parsedValue = parseSVGStrokeDasharray(); |
| |
| break; |
| |
| case CSSPropertyKerning: // auto | normal | <length> | inherit |
| if (id == CSSValueAuto || id == CSSValueNormal) |
| valid_primitive = true; |
| else |
| valid_primitive = validUnit(value, FLength, SVGAttributeMode); |
| break; |
| |
| case CSSPropertyClipPath: // <uri> | none | inherit |
| case CSSPropertyFilter: |
| if (id == CSSValueNone) |
| valid_primitive = true; |
| else if (value->unit == CSSPrimitiveValue::CSS_URI) { |
| parsedValue = CSSPrimitiveValue::create(value->string, (CSSPrimitiveValue::UnitTypes) value->unit); |
| if (parsedValue) |
| m_valueList->next(); |
| } |
| break; |
| case CSSPropertyWebkitSvgShadow: |
| if (id == CSSValueNone) |
| valid_primitive = true; |
| else { |
| RefPtr<CSSValueList> shadowValueList = parseShadow(m_valueList.get(), propId); |
| if (shadowValueList) { |
| addProperty(propId, shadowValueList.release(), important); |
| m_valueList->next(); |
| return true; |
| } |
| return false; |
| } |
| |
| case CSSPropertyMaskType: // luminance | alpha | inherit |
| if (id == CSSValueLuminance || id == CSSValueAlpha) |
| valid_primitive = true; |
| break; |
| |
| /* shorthand properties */ |
| case CSSPropertyMarker: |
| { |
| ShorthandScope scope(this, propId); |
| m_implicitShorthand = true; |
| if (!parseValue(CSSPropertyMarkerStart, important)) |
| return false; |
| if (m_valueList->current()) { |
| rollbackLastProperties(1); |
| return false; |
| } |
| CSSValue* value = m_parsedProperties.last().value(); |
| addProperty(CSSPropertyMarkerMid, value, important); |
| addProperty(CSSPropertyMarkerEnd, value, important); |
| m_implicitShorthand = false; |
| return true; |
| } |
| default: |
| // If you crash here, it's because you added a css property and are not handling it |
| // in either this switch statement or the one in CSSParser::parseValue |
| ASSERT_WITH_MESSAGE(0, "unimplemented propertyID: %d", propId); |
| return false; |
| } |
| |
| if (valid_primitive) { |
| if (id != 0) |
| parsedValue = CSSPrimitiveValue::createIdentifier(id); |
| else if (value->unit == CSSPrimitiveValue::CSS_STRING) |
| parsedValue = CSSPrimitiveValue::create(value->string, (CSSPrimitiveValue::UnitTypes) value->unit); |
| else if (value->unit >= CSSPrimitiveValue::CSS_NUMBER && value->unit <= CSSPrimitiveValue::CSS_KHZ) |
| parsedValue = CSSPrimitiveValue::create(value->fValue, (CSSPrimitiveValue::UnitTypes) value->unit); |
| else if (value->unit >= CSSParserValue::Q_EMS) |
| parsedValue = CSSPrimitiveValue::createAllowingMarginQuirk(value->fValue, CSSPrimitiveValue::CSS_EMS); |
| if (isCalculation(value)) { |
| // FIXME calc() http://webkit.org/b/16662 : actually create a CSSPrimitiveValue here, ie |
| // parsedValue = CSSPrimitiveValue::create(m_parsedCalculation.release()); |
| m_parsedCalculation.release(); |
| parsedValue = 0; |
| } |
| m_valueList->next(); |
| } |
| if (!parsedValue || (m_valueList->current() && !inShorthand())) |
| return false; |
| |
| addProperty(propId, parsedValue.release(), important); |
| return true; |
| } |
| |
| PassRefPtr<CSSValue> CSSParser::parseSVGStrokeDasharray() |
| { |
| RefPtr<CSSValueList> ret = CSSValueList::createCommaSeparated(); |
| CSSParserValue* value = m_valueList->current(); |
| bool valid_primitive = true; |
| while (value) { |
| valid_primitive = validUnit(value, FLength | FPercent | FNonNeg, SVGAttributeMode); |
| if (!valid_primitive) |
| break; |
| if (value->id != 0) |
| ret->append(CSSPrimitiveValue::createIdentifier(value->id)); |
| else if (value->unit >= CSSPrimitiveValue::CSS_NUMBER && value->unit <= CSSPrimitiveValue::CSS_KHZ) |
| ret->append(CSSPrimitiveValue::create(value->fValue, (CSSPrimitiveValue::UnitTypes) value->unit)); |
| value = m_valueList->next(); |
| if (value && value->unit == CSSParserValue::Operator && value->iValue == ',') |
| value = m_valueList->next(); |
| } |
| if (!valid_primitive) |
| return 0; |
| return ret.release(); |
| } |
| |
| PassRefPtr<CSSValue> CSSParser::parseSVGPaint() |
| { |
| RGBA32 c = Color::transparent; |
| if (!parseColorFromValue(m_valueList->current(), c)) |
| return SVGPaint::createUnknown(); |
| return SVGPaint::createColor(Color(c)); |
| } |
| |
| PassRefPtr<CSSValue> CSSParser::parseSVGColor() |
| { |
| RGBA32 c = Color::transparent; |
| if (!parseColorFromValue(m_valueList->current(), c)) |
| return 0; |
| return SVGColor::createFromColor(Color(c)); |
| } |
| |
| } |
| |
| #endif // ENABLE(SVG) |
