Merge SVGCSSParser into CSSPropertyParser.cpp

Source/core/css/parser/CSSPropertyParser.cpp

 /*
  * Copyright (C) 2003 Lars Knoll (knoll@kde.org)
  * Copyright (C) 2005 Allan Sandfeld Jensen (kde@carewolf.com)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012 Apple Inc. All rights reserved.
  * Copyright (C) 2007 Nicholas Shanks <webkit@nickshanks.com>
  * Copyright (C) 2008 Eric Seidel <eric@webkit.org>
  * Copyright (C) 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  * Copyright (C) 2012 Adobe Systems Incorporated. All rights reserved.
  * Copyright (C) 2012 Intel Corporation. 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.
  */
 
 #include "config.h"
 #include "core/css/parser/CSSPropertyParser.h"
+#include "RuntimeEnabledFeatures.h"
+#include "core/rendering/RenderTheme.h"
+#include "core/svg/SVGPaint.h"
+
+using namespace std;
 
 namespace WebCore {
 
 CSSPropertyParser::CSSPropertyParser(OwnPtr<CSSParserValueList>& valueList,
     const CSSParserContext& context, bool inViewport, bool savedImportant,
     ParsedPropertyVector& parsedProperties, bool& hasFontFaceOnlyValues)
     : m_valueList(valueList)
     , m_context(context)
     , m_inViewport(inViewport)
     , m_important(savedImportant) // See comment in header, should be removed.
     , m_parsedProperties(parsedProperties)
     , m_hasFontFaceOnlyValues(hasFontFaceOnlyValues)
     , m_inParseShorthand(0)
     , m_currentShorthand(CSSPropertyInvalid)
     , m_implicitShorthand(false)
 {
 }
 
 CSSPropertyParser::~CSSPropertyParser()
 {
 }
 
+bool CSSPropertyParser::isSystemColor(int id)
+{
+    return (id >= CSSValueActiveborder && id <= CSSValueWindowtext) || id == CSSValueMenu;
+}
+
+bool CSSPropertyParser::parseSVGValue(CSSPropertyID propId, bool important)
+{
+    CSSParserValue* value = m_valueList->current();
+    if (!value)
+        return false;
+
+    CSSValueID id = value->id;
+
+    bool validPrimitive = false;
+    RefPtrWillBeRawPtr<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))
+            validPrimitive = true;
+        break;
+
+    case CSSPropertyBaselineShift:
+    // baseline | super | sub | <percentage> | <length> | inherit
+        if (id == CSSValueBaseline || id == CSSValueSub
+            || id >= CSSValueSuper)
+            validPrimitive = true;
+        else
+            validPrimitive = 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))
+            validPrimitive = true;
+        break;
+
+    case CSSPropertyEnableBackground:
+    // accumulate | new [x] [y] [width] [height] | inherit
+        if (id == CSSValueAccumulate) // TODO : new
+            validPrimitive = true;
+        break;
+
+    case CSSPropertyMarkerStart:
+    case CSSPropertyMarkerMid:
+    case CSSPropertyMarkerEnd:
+    case CSSPropertyMask:
+        if (id == CSSValueNone) {
+            validPrimitive = 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)
+            validPrimitive = true;
+        break;
+
+    case CSSPropertyStrokeMiterlimit: // <miterlimit> | inherit
+        validPrimitive = validUnit(value, FNumber | FNonNeg, SVGAttributeMode);
+        break;
+
+    case CSSPropertyStrokeLinejoin: // miter | round | bevel | inherit
+        if (id == CSSValueMiter || id == CSSValueRound || id == CSSValueBevel)
+            validPrimitive = true;
+        break;
+
+    case CSSPropertyStrokeLinecap: // butt | round | square | inherit
+        if (id == CSSValueButt || id == CSSValueRound || id == CSSValueSquare)
+            validPrimitive = true;
+        break;
+
+    case CSSPropertyStrokeOpacity: // <opacity-value> | inherit
+    case CSSPropertyFillOpacity:
+    case CSSPropertyStopOpacity:
+    case CSSPropertyFloodOpacity:
+        validPrimitive = (!id && validUnit(value, FNumber | FPercent, SVGAttributeMode));
+        break;
+
+    case CSSPropertyShapeRendering:
+    // auto | optimizeSpeed | crispEdges | geometricPrecision | inherit
+        if (id == CSSValueAuto || id == CSSValueOptimizespeed
+            || id == CSSValueCrispedges || id == CSSValueGeometricprecision)
+            validPrimitive = true;
+        break;
+
+    case CSSPropertyImageRendering: // auto | optimizeSpeed |
+    case CSSPropertyColorRendering: // optimizeQuality | inherit
+        if (id == CSSValueAuto || id == CSSValueOptimizespeed
+            || id == CSSValueOptimizequality)
+            validPrimitive = true;
+        break;
+
+    case CSSPropertyBufferedRendering: // auto | dynamic | static
+        if (id == CSSValueAuto || id == CSSValueDynamic || id == CSSValueStatic)
+            validPrimitive = true;
+        break;
+
+    case CSSPropertyColorProfile: // auto | sRGB | <name> | <uri> inherit
+        if (id == CSSValueAuto || id == CSSValueSrgb)
+            validPrimitive = true;
+        break;
+
+    case CSSPropertyColorInterpolation: // auto | sRGB | linearRGB | inherit
+    case CSSPropertyColorInterpolationFilters:
+        if (id == CSSValueAuto || id == CSSValueSrgb || id == CSSValueLinearrgb)
+            validPrimitive = 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)
+            validPrimitive = true;
+        break;
+
+    case CSSPropertyGlyphOrientationVertical: // auto | <angle> | inherit
+        if (id == CSSValueAuto) {
+            validPrimitive = 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 (isSystemColor(id)) {
+                parsedValue = SVGPaint::createColor(RenderTheme::theme().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);
+                    else if (m_valueList->current()->id == CSSValueCurrentcolor)
+                        parsedValue = SVGPaint::createURIAndCurrentColor(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 (isSystemColor(id))
+            parsedValue = SVGColor::createFromColor(RenderTheme::theme().systemColor(id));
+        else if ((id >= CSSValueAqua && id <= CSSValueTransparent)
+            || (id >= CSSValueAliceblue && id <= CSSValueYellowgreen) || id == CSSValueGrey)
+            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 CSSPropertyPaintOrder:
+        if (!RuntimeEnabledFeatures::svgPaintOrderEnabled())
+            return false;
+
+        if (m_valueList->size() == 1 && id == CSSValueNormal)
+            validPrimitive = true;
+        else if ((parsedValue = parsePaintOrder()))
+            m_valueList->next();
+        break;
+
+    case CSSPropertyVectorEffect: // none | non-scaling-stroke | inherit
+        if (id == CSSValueNone || id == CSSValueNonScalingStroke)
+            validPrimitive = 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)
+            validPrimitive = true;
+        break;
+
+    case CSSPropertyStrokeWidth: // <length> | inherit
+    case CSSPropertyStrokeDashoffset:
+        validPrimitive = validUnit(value, FLength | FPercent, SVGAttributeMode);
+        break;
+    case CSSPropertyStrokeDasharray: // none | <dasharray> | inherit
+        if (id == CSSValueNone)
+            validPrimitive = true;
+        else
+            parsedValue = parseSVGStrokeDasharray();
+
+        break;
+
+    case CSSPropertyKerning: // auto | normal | <length> | inherit
+        if (id == CSSValueAuto || id == CSSValueNormal)
+            validPrimitive = true;
+        else
+            validPrimitive = validUnit(value, FLength, SVGAttributeMode);
+        break;
+
+    case CSSPropertyClipPath: // <uri> | none | inherit
+    case CSSPropertyFilter:
+        if (id == CSSValueNone) {
+            validPrimitive = true;
+        } else if (value->unit == CSSPrimitiveValue::CSS_URI) {
+            parsedValue = CSSPrimitiveValue::create(value->string, (CSSPrimitiveValue::UnitTypes) value->unit);
+            if (parsedValue)
+                m_valueList->next();
+        }
+        break;
+    case CSSPropertyMaskType: // luminance | alpha | inherit
+        if (id == CSSValueLuminance || id == CSSValueAlpha)
+            validPrimitive = true;
+        break;
+
+    /* shorthand properties */
+    case CSSPropertyMarker: {
+        ShorthandScope scope(this, propId);
+        CSSPropertyParser::ImplicitScope implicitScope(this, PropertyImplicit);
+        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);
+        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 CSSPropertyParser::parseValue
+        ASSERT_WITH_MESSAGE(0, "unimplemented propertyID: %d", propId);
+        return false;
+    }
+
+    if (validPrimitive) {
+        if (id)
+            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 = nullptr;
+        }
+        m_valueList->next();
+    }
+    if (!parsedValue || (m_valueList->current() && !inShorthand()))
+        return false;
+
+    addProperty(propId, parsedValue.release(), important);
+    return true;
+}
+
+PassRefPtrWillBeRawPtr<CSSValue> CSSPropertyParser::parseSVGStrokeDasharray()
+{
+    RefPtrWillBeRawPtr<CSSValueList> ret = CSSValueList::createCommaSeparated();
+    CSSParserValue* value = m_valueList->current();
+    bool validPrimitive = true;
+    while (value) {
+        validPrimitive = validUnit(value, FLength | FPercent | FNonNeg, SVGAttributeMode);
+        if (!validPrimitive)
+            break;
+        if (value->id)
+            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 (!validPrimitive)
+        return nullptr;
+    return ret.release();
+}
+
+PassRefPtrWillBeRawPtr<CSSValue> CSSPropertyParser::parseSVGPaint()
+{
+    RGBA32 c = Color::transparent;
+    if (!parseColorFromValue(m_valueList->current(), c))
+        return SVGPaint::createUnknown();
+    return SVGPaint::createColor(Color(c));
+}
+
+PassRefPtrWillBeRawPtr<CSSValue> CSSPropertyParser::parseSVGColor()
+{
+    RGBA32 c = Color::transparent;
+    if (!parseColorFromValue(m_valueList->current(), c))
+        return nullptr;
+    return SVGColor::createFromColor(Color(c));
+}
+
+// normal | [ fill || stroke || markers ]
+PassRefPtrWillBeRawPtr<CSSValue> CSSPropertyParser::parsePaintOrder() const
+{
+    if (m_valueList->size() > 3)
+        return nullptr;
+
+    CSSParserValue* value = m_valueList->current();
+    if (!value)
+        return nullptr;
+
+    RefPtrWillBeRawPtr<CSSValueList> parsedValues = CSSValueList::createSpaceSeparated();
+
+    // The default paint-order is: Fill, Stroke, Markers.
+    bool seenFill = false, seenStroke = false, seenMarkers = false;
+
+    do {
+        switch (value->id) {
+        case CSSValueNormal:
+            // normal inside [fill || stroke || markers] not valid
+            return nullptr;
+        case CSSValueFill:
+            if (seenFill)
+                return nullptr;
+
+            seenFill = true;
+            break;
+        case CSSValueStroke:
+            if (seenStroke)
+                return nullptr;
+
+            seenStroke = true;
+            break;
+        case CSSValueMarkers:
+            if (seenMarkers)
+                return nullptr;
+
+            seenMarkers = true;
+            break;
+        default:
+            return nullptr;
+        }
+
+        parsedValues->append(CSSPrimitiveValue::createIdentifier(value->id));
+    } while ((value = m_valueList->next()));
+
+    // fill out the rest of the paint order
+    if (!seenFill)
+        parsedValues->append(CSSPrimitiveValue::createIdentifier(CSSValueFill));
+    if (!seenStroke)
+        parsedValues->append(CSSPrimitiveValue::createIdentifier(CSSValueStroke));
+    if (!seenMarkers)
+        parsedValues->append(CSSPrimitiveValue::createIdentifier(CSSValueMarkers));
+
+    return parsedValues.release();
+}
+
 } // namespace WebCore