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Diffstat (limited to 'WebCore/css/CSSParser.cpp')
| -rw-r--r-- | WebCore/css/CSSParser.cpp | 4854 |
1 files changed, 4854 insertions, 0 deletions
diff --git a/WebCore/css/CSSParser.cpp b/WebCore/css/CSSParser.cpp new file mode 100644 index 0000000..31d98e0 --- /dev/null +++ b/WebCore/css/CSSParser.cpp @@ -0,0 +1,4854 @@ +/* + * Copyright (C) 2003 Lars Knoll (knoll@kde.org) + * Copyright (C) 2005 Allan Sandfeld Jensen (kde@carewolf.com) + * Copyright (C) 2004, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved. + * Copyright (C) 2007 Nicholas Shanks <webkit@nickshanks.com> + * Copyright (C) 2008 Eric Seidel <eric@webkit.org> + * + * 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 "CSSParser.h" + +#include "CString.h" +#include "CSSTimingFunctionValue.h" +#include "CSSBorderImageValue.h" +#include "CSSCanvasValue.h" +#include "CSSCharsetRule.h" +#include "CSSCursorImageValue.h" +#include "CSSHelper.h" +#include "CSSImageValue.h" +#include "CSSFontFaceRule.h" +#include "CSSFontFaceSrcValue.h" +#include "CSSGradientValue.h" +#include "CSSImportRule.h" +#include "CSSInheritedValue.h" +#include "CSSInitialValue.h" +#include "CSSMediaRule.h" +#include "CSSMutableStyleDeclaration.h" +#include "CSSPrimitiveValue.h" +#include "CSSProperty.h" +#include "CSSPropertyNames.h" +#include "CSSQuirkPrimitiveValue.h" +#include "CSSReflectValue.h" +#include "CSSRuleList.h" +#include "CSSSelector.h" +#include "CSSNthSelector.h" +#include "CSSStyleRule.h" +#include "CSSStyleSheet.h" +#include "CSSUnicodeRangeValue.h" +#include "CSSValueKeywords.h" +#include "CSSValueList.h" +#include "CSSVariableDependentValue.h" +#include "CSSVariablesDeclaration.h" +#include "CSSVariablesRule.h" +#include "Counter.h" +#include "Document.h" +#include "FloatConversion.h" +#include "FontFamilyValue.h" +#include "FontValue.h" +#include "MediaList.h" +#include "MediaQueryExp.h" +#include "Pair.h" +#include "Rect.h" +#include "ShadowValue.h" +#include "WebKitCSSKeyframeRule.h" +#include "WebKitCSSKeyframesRule.h" +#include "WebKitCSSTransformValue.h" +#include <kjs/dtoa.h> + +#if ENABLE(DASHBOARD_SUPPORT) +#include "DashboardRegion.h" +#endif + +#define YYDEBUG 0 + +#if YYDEBUG > 0 +extern int cssyydebug; +#endif + +extern int cssyyparse(void* parser); + +using namespace std; +using namespace WTF; + +#include "CSSPropertyNames.cpp" +#include "CSSValueKeywords.c" + +namespace WebCore { + +static bool equal(const CSSParserString& a, const char* b) +{ + for (int i = 0; i < a.length; ++i) { + if (!b[i]) + return false; + if (a.characters[i] != b[i]) + return false; + } + return !b[a.length]; +} + +static bool equalIgnoringCase(const CSSParserString& a, const char* b) +{ + for (int i = 0; i < a.length; ++i) { + if (!b[i]) + return false; + ASSERT(!isASCIIUpper(b[i])); + if (toASCIILower(a.characters[i]) != b[i]) + return false; + } + return !b[a.length]; +} + +static bool hasPrefix(const char* string, unsigned length, const char* prefix) +{ + for (unsigned i = 0; i < length; ++i) { + if (!prefix[i]) + return true; + if (string[i] != prefix[i]) + return false; + } + return false; +} + +CSSParser::CSSParser(bool strictParsing) + : m_strict(strictParsing) + , m_important(false) + , m_id(0) + , m_styleSheet(0) + , m_mediaQuery(0) + , m_valueList(0) + , m_parsedProperties(static_cast<CSSProperty**>(fastMalloc(32 * sizeof(CSSProperty*)))) + , m_floatingSelector(0) + , m_numParsedProperties(0) + , m_maxParsedProperties(32) + , m_inParseShorthand(0) + , m_currentShorthand(0) + , m_implicitShorthand(false) + , m_hasFontFaceOnlyValues(false) + , m_defaultNamespace(starAtom) + , m_data(0) + , yy_start(1) + , m_floatingMediaQuery(0) + , m_floatingMediaQueryExp(0) + , m_floatingMediaQueryExpList(0) +{ +#if YYDEBUG > 0 + cssyydebug = 1; +#endif +} + +CSSParser::~CSSParser() +{ + clearProperties(); + fastFree(m_parsedProperties); + + clearVariables(); + + delete m_valueList; + + fastFree(m_data); + + if (m_floatingMediaQueryExpList) { + deleteAllValues(*m_floatingMediaQueryExpList); + delete m_floatingMediaQueryExpList; + } + delete m_floatingMediaQueryExp; + delete m_floatingMediaQuery; + deleteAllValues(m_floatingSelectors); + deleteAllValues(m_floatingValueLists); + deleteAllValues(m_floatingFunctions); +} + +void CSSParserString::lower() +{ + // FIXME: If we need Unicode lowercasing here, then we probably want the real kind + // that can potentially change the length of the string rather than the character + // by character kind. If we don't need Unicode lowercasing, it would be good to + // simplify this function. + + if (charactersAreAllASCII(characters, length)) { + // Fast case for all-ASCII. + for (int i = 0; i < length; i++) + characters[i] = toASCIILower(characters[i]); + } else { + for (int i = 0; i < length; i++) + characters[i] = Unicode::toLower(characters[i]); + } +} + +void CSSParser::setupParser(const char* prefix, const String& string, const char* suffix) +{ + int length = string.length() + strlen(prefix) + strlen(suffix) + 2; + + fastFree(m_data); + m_data = static_cast<UChar*>(fastMalloc(length * sizeof(UChar))); + for (unsigned i = 0; i < strlen(prefix); i++) + m_data[i] = prefix[i]; + + memcpy(m_data + strlen(prefix), string.characters(), string.length() * sizeof(UChar)); + + unsigned start = strlen(prefix) + string.length(); + unsigned end = start + strlen(suffix); + for (unsigned i = start; i < end; i++) + m_data[i] = suffix[i - start]; + + m_data[length - 1] = 0; + m_data[length - 2] = 0; + + yy_hold_char = 0; + yyleng = 0; + yytext = yy_c_buf_p = m_data; + yy_hold_char = *yy_c_buf_p; +} + +void CSSParser::parseSheet(CSSStyleSheet* sheet, const String& string) +{ + m_styleSheet = sheet; + m_defaultNamespace = starAtom; // Reset the default namespace. + + setupParser("", string, ""); + cssyyparse(this); + m_rule = 0; +} + +PassRefPtr<CSSRule> CSSParser::parseRule(CSSStyleSheet* sheet, const String& string) +{ + m_styleSheet = sheet; + setupParser("@-webkit-rule{", string, "} "); + cssyyparse(this); + return m_rule.release(); +} + +PassRefPtr<CSSRule> CSSParser::parseKeyframeRule(CSSStyleSheet *sheet, const String &string) +{ + m_styleSheet = sheet; + setupParser("@-webkit-keyframe-rule{ ", string, "} "); + cssyyparse(this); + return m_keyframe.release(); +} + +bool CSSParser::parseValue(CSSMutableStyleDeclaration* declaration, int id, const String& string, bool important) +{ + ASSERT(!declaration->stylesheet() || declaration->stylesheet()->isCSSStyleSheet()); + m_styleSheet = static_cast<CSSStyleSheet*>(declaration->stylesheet()); + + setupParser("@-webkit-value{", string, "} "); + + m_id = id; + m_important = important; + + cssyyparse(this); + + m_rule = 0; + + bool ok = false; + if (m_hasFontFaceOnlyValues) + deleteFontFaceOnlyValues(); + if (m_numParsedProperties) { + ok = true; + declaration->addParsedProperties(m_parsedProperties, m_numParsedProperties); + clearProperties(); + } + + return ok; +} + +// color will only be changed when string contains a valid css color, making it +// possible to set up a default color. +bool CSSParser::parseColor(RGBA32& color, const String& string, bool strict) +{ + color = 0; + CSSParser parser(true); + + // First try creating a color specified by name or the "#" syntax. + if (!parser.parseColor(string, color, strict)) { + RefPtr<CSSMutableStyleDeclaration> dummyStyleDeclaration = CSSMutableStyleDeclaration::create(); + + // Now try to create a color from the rgb() or rgba() syntax. + if (parser.parseColor(dummyStyleDeclaration.get(), string)) { + CSSValue* value = parser.m_parsedProperties[0]->value(); + if (value->cssValueType() == CSSValue::CSS_PRIMITIVE_VALUE) { + CSSPrimitiveValue* primitiveValue = static_cast<CSSPrimitiveValue*>(value); + color = primitiveValue->getRGBColorValue(); + } + } else + return false; + } + + return true; +} + +bool CSSParser::parseColor(CSSMutableStyleDeclaration* declaration, const String& string) +{ + ASSERT(!declaration->stylesheet() || declaration->stylesheet()->isCSSStyleSheet()); + m_styleSheet = static_cast<CSSStyleSheet*>(declaration->stylesheet()); + + setupParser("@-webkit-decls{color:", string, "} "); + cssyyparse(this); + m_rule = 0; + + return (m_numParsedProperties && m_parsedProperties[0]->m_id == CSSPropertyColor); +} + +std::auto_ptr<CSSSelector> CSSParser::parseSelector(const String& string, Document* doc) +{ + RefPtr<CSSStyleSheet> dummyStyleSheet = CSSStyleSheet::create(doc); + + m_styleSheet = dummyStyleSheet.get(); + + setupParser("@-webkit-selector{", string, "}"); + + cssyyparse(this); + + return std::auto_ptr<CSSSelector>(m_floatingSelector); +} + +bool CSSParser::parseDeclaration(CSSMutableStyleDeclaration* declaration, const String& string) +{ + ASSERT(!declaration->stylesheet() || declaration->stylesheet()->isCSSStyleSheet()); + m_styleSheet = static_cast<CSSStyleSheet*>(declaration->stylesheet()); + + setupParser("@-webkit-decls{", string, "} "); + cssyyparse(this); + m_rule = 0; + + bool ok = false; + if (m_hasFontFaceOnlyValues) + deleteFontFaceOnlyValues(); + if (m_numParsedProperties) { + ok = true; + declaration->addParsedProperties(m_parsedProperties, m_numParsedProperties); + clearProperties(); + } + + return ok; +} + +bool CSSParser::parseMediaQuery(MediaList* queries, const String& string) +{ + if (string.isEmpty()) + return true; + + m_mediaQuery = 0; + // can't use { because tokenizer state switches from mediaquery to initial state when it sees { token. + // instead insert one " " (which is WHITESPACE in CSSGrammar.y) + setupParser ("@-webkit-mediaquery ", string, "} "); + cssyyparse(this); + + bool ok = false; + if (m_mediaQuery) { + ok = true; + queries->appendMediaQuery(m_mediaQuery); + m_mediaQuery = 0; + } + + return ok; +} + + +void CSSParser::addProperty(int propId, PassRefPtr<CSSValue> value, bool important) +{ + CSSProperty* prop = new CSSProperty(propId, value, important, m_currentShorthand, m_implicitShorthand); + if (m_numParsedProperties >= m_maxParsedProperties) { + m_maxParsedProperties += 32; + m_parsedProperties = static_cast<CSSProperty**>(fastRealloc(m_parsedProperties, + m_maxParsedProperties * sizeof(CSSProperty*))); + } + m_parsedProperties[m_numParsedProperties++] = prop; +} + +void CSSParser::rollbackLastProperties(int num) +{ + ASSERT(num >= 0); + ASSERT(m_numParsedProperties >= num); + + for (int i = 0; i < num; ++i) + delete m_parsedProperties[--m_numParsedProperties]; +} + +void CSSParser::clearProperties() +{ + for (int i = 0; i < m_numParsedProperties; i++) + delete m_parsedProperties[i]; + m_numParsedProperties = 0; + m_hasFontFaceOnlyValues = false; +} + +Document* CSSParser::document() const +{ + StyleBase* root = m_styleSheet; + Document* doc = 0; + while (root && root->parent()) + root = root->parent(); + if (root && root->isCSSStyleSheet()) + doc = static_cast<CSSStyleSheet*>(root)->doc(); + return doc; +} + +bool CSSParser::validUnit(CSSParserValue* value, Units unitflags, bool strict) +{ + if (unitflags & FNonNeg && value->fValue < 0) + return false; + + bool b = false; + switch(value->unit) { + case CSSPrimitiveValue::CSS_NUMBER: + b = (unitflags & FNumber); + if (!b && ((unitflags & (FLength | FAngle | FTime)) && (value->fValue == 0 || !strict))) { + value->unit = (unitflags & FLength) ? CSSPrimitiveValue::CSS_PX : + ((unitflags & FAngle) ? CSSPrimitiveValue::CSS_DEG : CSSPrimitiveValue::CSS_S); + b = true; + } + if (!b && (unitflags & FInteger) && value->isInt) + b = true; + break; + case CSSPrimitiveValue::CSS_PERCENTAGE: + b = (unitflags & FPercent); + break; + case CSSParserValue::Q_EMS: + case CSSPrimitiveValue::CSS_EMS: + case CSSPrimitiveValue::CSS_EXS: + case CSSPrimitiveValue::CSS_PX: + case CSSPrimitiveValue::CSS_CM: + case CSSPrimitiveValue::CSS_MM: + case CSSPrimitiveValue::CSS_IN: + case CSSPrimitiveValue::CSS_PT: + case CSSPrimitiveValue::CSS_PC: + b = (unitflags & FLength); + break; + case CSSPrimitiveValue::CSS_MS: + case CSSPrimitiveValue::CSS_S: + b = (unitflags & FTime); + break; + case CSSPrimitiveValue::CSS_DEG: + case CSSPrimitiveValue::CSS_RAD: + case CSSPrimitiveValue::CSS_GRAD: + b = (unitflags & FAngle); + break; + case CSSPrimitiveValue::CSS_HZ: + case CSSPrimitiveValue::CSS_KHZ: + case CSSPrimitiveValue::CSS_DIMENSION: + default: + break; + } + return b; +} + +static int unitFromString(CSSParserValue* value) +{ + if (value->unit != CSSPrimitiveValue::CSS_IDENT || value->id) + return 0; + + if (equal(value->string, "em")) + return CSSPrimitiveValue::CSS_EMS; + if (equal(value->string, "ex")) + return CSSPrimitiveValue::CSS_EXS; + if (equal(value->string, "px")) + return CSSPrimitiveValue::CSS_PX; + if (equal(value->string, "cm")) + return CSSPrimitiveValue::CSS_CM; + if (equal(value->string, "mm")) + return CSSPrimitiveValue::CSS_MM; + if (equal(value->string, "in")) + return CSSPrimitiveValue::CSS_IN; + if (equal(value->string, "pt")) + return CSSPrimitiveValue::CSS_PT; + if (equal(value->string, "pc")) + return CSSPrimitiveValue::CSS_PC; + if (equal(value->string, "deg")) + return CSSPrimitiveValue::CSS_DEG; + if (equal(value->string, "rad")) + return CSSPrimitiveValue::CSS_RAD; + if (equal(value->string, "grad")) + return CSSPrimitiveValue::CSS_GRAD; + if (equal(value->string, "ms")) + return CSSPrimitiveValue::CSS_MS; + if (equal(value->string, "s")) + return CSSPrimitiveValue::CSS_S; + if (equal(value->string, "Hz")) + return CSSPrimitiveValue::CSS_HZ; + if (equal(value->string, "kHz")) + return CSSPrimitiveValue::CSS_KHZ; + + return 0; +} + +void CSSParser::checkForOrphanedUnits() +{ + if (m_strict || inShorthand()) + return; + + // The purpose of this code is to implement the WinIE quirk that allows unit types to be separated from their numeric values + // by whitespace, so e.g., width: 20 px instead of width:20px. This is invalid CSS, so we don't do this in strict mode. + CSSParserValue* numericVal = 0; + unsigned size = m_valueList->size(); + for (unsigned i = 0; i < size; i++) { + CSSParserValue* value = m_valueList->valueAt(i); + + if (numericVal) { + // Change the unit type of the numeric val to match. + int unit = unitFromString(value); + if (unit) { + numericVal->unit = unit; + numericVal = 0; + + // Now delete the bogus unit value. + m_valueList->deleteValueAt(i); + i--; // We're safe even though |i| is unsigned, since we only hit this code if we had a previous numeric value (so |i| is always > 0 here). + size--; + continue; + } + } + + numericVal = (value->unit == CSSPrimitiveValue::CSS_NUMBER) ? value : 0; + } +} + +bool CSSParser::parseValue(int propId, bool important) +{ + if (!m_valueList) + return false; + + CSSParserValue *value = m_valueList->current(); + + if (!value) + return false; + + int id = value->id; + + // In quirks mode, we will look for units that have been incorrectly separated from the number they belong to + // by a space. We go ahead and associate the unit with the number even though it is invalid CSS. + checkForOrphanedUnits(); + + int num = inShorthand() ? 1 : m_valueList->size(); + + if (id == CSSValueInherit) { + if (num != 1) + return false; + addProperty(propId, CSSInheritedValue::create(), important); + return true; + } + else if (id == CSSValueInitial) { + if (num != 1) + return false; + addProperty(propId, CSSInitialValue::createExplicit(), important); + return true; + } + + // If we have any variables, then we don't parse the list of values yet. We add them to the declaration + // as unresolved, and allow them to be parsed later. The parse is considered "successful" for now, even though + // it might ultimately fail once the variable has been resolved. + if (!inShorthand() && checkForVariables(m_valueList)) { + addUnresolvedProperty(propId, important); + return true; + } + + bool valid_primitive = false; + RefPtr<CSSValue> parsedValue; + + switch (static_cast<CSSPropertyID>(propId)) { + /* The comment to the left defines all valid value of this properties as defined + * in CSS 2, Appendix F. Property index + */ + + /* All the CSS properties are not supported by the renderer at the moment. + * Note that all the CSS2 Aural properties are only checked, if CSS_AURAL is defined + * (see parseAuralValues). As we don't support them at all this seems reasonable. + */ + + case CSSPropertySize: // <length>{1,2} | auto | portrait | landscape | inherit + case CSSPropertyQuotes: // [<string> <string>]+ | none | inherit + if (id) + valid_primitive = true; + break; + case CSSPropertyUnicodeBidi: // normal | embed | bidi-override | inherit + if (id == CSSValueNormal || + id == CSSValueEmbed || + id == CSSValueBidiOverride) + valid_primitive = true; + break; + + case CSSPropertyPosition: // static | relative | absolute | fixed | inherit + if (id == CSSValueStatic || + id == CSSValueRelative || + id == CSSValueAbsolute || + id == CSSValueFixed) + valid_primitive = true; + break; + + case CSSPropertyPageBreakAfter: // auto | always | avoid | left | right | inherit + case CSSPropertyPageBreakBefore: + case CSSPropertyWebkitColumnBreakAfter: + case CSSPropertyWebkitColumnBreakBefore: + if (id == CSSValueAuto || + id == CSSValueAlways || + id == CSSValueAvoid || + id == CSSValueLeft || + id == CSSValueRight) + valid_primitive = true; + break; + + case CSSPropertyPageBreakInside: // avoid | auto | inherit + case CSSPropertyWebkitColumnBreakInside: + if (id == CSSValueAuto || id == CSSValueAvoid) + valid_primitive = true; + break; + + case CSSPropertyEmptyCells: // show | hide | inherit + if (id == CSSValueShow || + id == CSSValueHide) + valid_primitive = true; + break; + + case CSSPropertyContent: // [ <string> | <uri> | <counter> | attr(X) | open-quote | + // close-quote | no-open-quote | no-close-quote ]+ | inherit + return parseContent(propId, important); + break; + + case CSSPropertyWhiteSpace: // normal | pre | nowrap | inherit + if (id == CSSValueNormal || + id == CSSValuePre || + id == CSSValuePreWrap || + id == CSSValuePreLine || + id == CSSValueNowrap) + valid_primitive = true; + break; + + case CSSPropertyClip: // <shape> | auto | inherit + if (id == CSSValueAuto) + valid_primitive = true; + else if (value->unit == CSSParserValue::Function) + return parseShape(propId, important); + break; + + /* Start of supported CSS properties with validation. This is needed for parseShorthand to work + * correctly and allows optimization in WebCore::applyRule(..) + */ + case CSSPropertyCaptionSide: // top | bottom | left | right | inherit + if (id == CSSValueLeft || id == CSSValueRight || + id == CSSValueTop || id == CSSValueBottom) + valid_primitive = true; + break; + + case CSSPropertyBorderCollapse: // collapse | separate | inherit + if (id == CSSValueCollapse || id == CSSValueSeparate) + valid_primitive = true; + break; + + case CSSPropertyVisibility: // visible | hidden | collapse | inherit + if (id == CSSValueVisible || id == CSSValueHidden || id == CSSValueCollapse) + valid_primitive = true; + break; + + case CSSPropertyOverflow: { + ShorthandScope scope(this, propId); + if (num != 1 || !parseValue(CSSPropertyOverflowX, important)) + return false; + CSSValue* value = m_parsedProperties[m_numParsedProperties - 1]->value(); + addProperty(CSSPropertyOverflowY, value, important); + return true; + } + case CSSPropertyOverflowX: + case CSSPropertyOverflowY: // visible | hidden | scroll | auto | marquee | overlay | inherit + if (id == CSSValueVisible || id == CSSValueHidden || id == CSSValueScroll || id == CSSValueAuto || + id == CSSValueOverlay || id == CSSValueWebkitMarquee) + valid_primitive = true; + break; + + case CSSPropertyListStylePosition: // inside | outside | inherit + if (id == CSSValueInside || id == CSSValueOutside) + valid_primitive = true; + break; + + case CSSPropertyListStyleType: + // disc | circle | square | decimal | decimal-leading-zero | lower-roman | + // upper-roman | lower-greek | lower-alpha | lower-latin | upper-alpha | + // upper-latin | hebrew | armenian | georgian | cjk-ideographic | hiragana | + // katakana | hiragana-iroha | katakana-iroha | none | inherit + if ((id >= CSSValueDisc && id <= CSSValueKatakanaIroha) || id == CSSValueNone) + valid_primitive = true; + break; + + case CSSPropertyDisplay: + // inline | block | list-item | run-in | inline-block | table | + // inline-table | table-row-group | table-header-group | table-footer-group | table-row | + // table-column-group | table-column | table-cell | table-caption | box | inline-box | none | inherit + if ((id >= CSSValueInline && id <= CSSValueWebkitInlineBox) || id == CSSValueNone) + valid_primitive = true; + break; + + case CSSPropertyDirection: // ltr | rtl | inherit + if (id == CSSValueLtr || id == CSSValueRtl) + valid_primitive = true; + break; + + case CSSPropertyTextTransform: // capitalize | uppercase | lowercase | none | inherit + if ((id >= CSSValueCapitalize && id <= CSSValueLowercase) || id == CSSValueNone) + valid_primitive = true; + break; + + case CSSPropertyFloat: // left | right | none | inherit + center for buggy CSS + if (id == CSSValueLeft || id == CSSValueRight || + id == CSSValueNone || id == CSSValueCenter) + valid_primitive = true; + break; + + case CSSPropertyClear: // none | left | right | both | inherit + if (id == CSSValueNone || id == CSSValueLeft || + id == CSSValueRight|| id == CSSValueBoth) + valid_primitive = true; + break; + + case CSSPropertyTextAlign: + // left | right | center | justify | webkit_left | webkit_right | webkit_center | start | end | <string> | inherit + if ((id >= CSSValueWebkitAuto && id <= CSSValueWebkitCenter) || id == CSSValueStart || id == CSSValueEnd || + value->unit == CSSPrimitiveValue::CSS_STRING) + valid_primitive = true; + break; + + case CSSPropertyOutlineStyle: // (<border-style> except hidden) | auto | inherit + if (id == CSSValueAuto || id == CSSValueNone || (id >= CSSValueInset && id <= CSSValueDouble)) + valid_primitive = true; + break; + + case CSSPropertyBorderTopStyle: //// <border-style> | inherit + case CSSPropertyBorderRightStyle: // Defined as: none | hidden | dotted | dashed | + case CSSPropertyBorderBottomStyle: // solid | double | groove | ridge | inset | outset + case CSSPropertyBorderLeftStyle: + case CSSPropertyWebkitColumnRuleStyle: + if (id >= CSSValueNone && id <= CSSValueDouble) + valid_primitive = true; + break; + + case CSSPropertyFontWeight: // normal | bold | bolder | lighter | 100 | 200 | 300 | 400 | 500 | 600 | 700 | 800 | 900 | inherit + return parseFontWeight(important); + + case CSSPropertyBorderSpacing: { + const int properties[2] = { CSSPropertyWebkitBorderHorizontalSpacing, + CSSPropertyWebkitBorderVerticalSpacing }; + if (num == 1) { + ShorthandScope scope(this, CSSPropertyBorderSpacing); + if (!parseValue(properties[0], important)) + return false; + CSSValue* value = m_parsedProperties[m_numParsedProperties-1]->value(); + addProperty(properties[1], value, important); + return true; + } + else if (num == 2) { + ShorthandScope scope(this, CSSPropertyBorderSpacing); + if (!parseValue(properties[0], important) || !parseValue(properties[1], important)) + return false; + return true; + } + return false; + } + case CSSPropertyWebkitBorderHorizontalSpacing: + case CSSPropertyWebkitBorderVerticalSpacing: + valid_primitive = validUnit(value, FLength|FNonNeg, m_strict); + break; + case CSSPropertyScrollbarFaceColor: // IE5.5 + case CSSPropertyScrollbarShadowColor: // IE5.5 + case CSSPropertyScrollbarHighlightColor: // IE5.5 + case CSSPropertyScrollbar3dlightColor: // IE5.5 + case CSSPropertyScrollbarDarkshadowColor: // IE5.5 + case CSSPropertyScrollbarTrackColor: // IE5.5 + case CSSPropertyScrollbarArrowColor: // IE5.5 + if (m_strict) + break; + /* nobreak */ + case CSSPropertyOutlineColor: // <color> | invert | inherit + // Outline color has "invert" as additional keyword. + // Also, we want to allow the special focus color even in strict parsing mode. + if (propId == CSSPropertyOutlineColor && (id == CSSValueInvert || id == CSSValueWebkitFocusRingColor)) { + valid_primitive = true; + break; + } + /* nobreak */ + case CSSPropertyBackgroundColor: // <color> | inherit + case CSSPropertyBorderTopColor: // <color> | inherit + case CSSPropertyBorderRightColor: // <color> | inherit + case CSSPropertyBorderBottomColor: // <color> | inherit + case CSSPropertyBorderLeftColor: // <color> | inherit + case CSSPropertyColor: // <color> | inherit + case CSSPropertyTextLineThroughColor: // CSS3 text decoration colors + case CSSPropertyTextUnderlineColor: + case CSSPropertyTextOverlineColor: + case CSSPropertyWebkitColumnRuleColor: + case CSSPropertyWebkitTextFillColor: + case CSSPropertyWebkitTextStrokeColor: + if (id == CSSValueWebkitText) + valid_primitive = true; // Always allow this, even when strict parsing is on, + // since we use this in our UA sheets. + else if (id == CSSValueCurrentcolor) + valid_primitive = true; + else if (id >= CSSValueAqua && id <= CSSValueWindowtext || id == CSSValueMenu || + (id >= CSSValueWebkitFocusRingColor && id < CSSValueWebkitText && !m_strict)) { + valid_primitive = true; + } else { + parsedValue = parseColor(); + if (parsedValue) + m_valueList->next(); + } + break; + + case CSSPropertyCursor: { + // [<uri>,]* [ auto | crosshair | default | pointer | progress | move | e-resize | ne-resize | + // nw-resize | n-resize | se-resize | sw-resize | s-resize | w-resize | ew-resize | + // ns-resize | nesw-resize | nwse-resize | col-resize | row-resize | text | wait | help | + // vertical-text | cell | context-menu | alias | copy | no-drop | not-allowed | -webkit-zoom-in + // -webkit-zoom-in | -webkit-zoom-out | all-scroll | -webkit-grab | -webkit-grabbing ] ] | inherit + RefPtr<CSSValueList> list; + while (value && value->unit == CSSPrimitiveValue::CSS_URI) { + if (!list) + list = CSSValueList::createCommaSeparated(); + String uri = parseURL(value->string); + Vector<int> coords; + value = m_valueList->next(); + while (value && value->unit == CSSPrimitiveValue::CSS_NUMBER) { + coords.append(int(value->fValue)); + value = m_valueList->next(); + } + IntPoint hotspot; + int nrcoords = coords.size(); + if (nrcoords > 0 && nrcoords != 2) { + if (m_strict) // only support hotspot pairs in strict mode + return false; + } else if (m_strict && nrcoords == 2) + hotspot = IntPoint(coords[0], coords[1]); + if (m_strict || coords.size() == 0) { + if (!uri.isNull()) + list->append(CSSCursorImageValue::create(KURL(m_styleSheet->baseURL(), uri).string(), hotspot)); + } + if ((m_strict && !value) || (value && !(value->unit == CSSParserValue::Operator && value->iValue == ','))) + return false; + value = m_valueList->next(); // comma + } + if (list) { + if (!value) { // no value after url list (MSIE 5 compatibility) + if (list->length() != 1) + return false; + } else if (!m_strict && value->id == CSSValueHand) // MSIE 5 compatibility :/ + list->append(CSSPrimitiveValue::createIdentifier(CSSValuePointer)); + else if (value && ((value->id >= CSSValueAuto && value->id <= CSSValueWebkitGrabbing) || value->id == CSSValueCopy || value->id == CSSValueNone)) + list->append(CSSPrimitiveValue::createIdentifier(value->id)); + m_valueList->next(); + parsedValue = list.release(); + break; + } + id = value->id; + if (!m_strict && value->id == CSSValueHand) { // MSIE 5 compatibility :/ + id = CSSValuePointer; + valid_primitive = true; + } else if ((value->id >= CSSValueAuto && value->id <= CSSValueWebkitGrabbing) || value->id == CSSValueCopy || value->id == CSSValueNone) + valid_primitive = true; + break; + } + + case CSSPropertyBackgroundAttachment: + case CSSPropertyWebkitBackgroundClip: + case CSSPropertyWebkitBackgroundComposite: + case CSSPropertyBackgroundImage: + case CSSPropertyWebkitBackgroundOrigin: + case CSSPropertyBackgroundPosition: + case CSSPropertyBackgroundPositionX: + case CSSPropertyBackgroundPositionY: + case CSSPropertyWebkitBackgroundSize: + case CSSPropertyBackgroundRepeat: + case CSSPropertyWebkitMaskAttachment: + case CSSPropertyWebkitMaskClip: + case CSSPropertyWebkitMaskComposite: + case CSSPropertyWebkitMaskImage: + case CSSPropertyWebkitMaskOrigin: + case CSSPropertyWebkitMaskPosition: + case CSSPropertyWebkitMaskPositionX: + case CSSPropertyWebkitMaskPositionY: + case CSSPropertyWebkitMaskSize: + case CSSPropertyWebkitMaskRepeat: { + RefPtr<CSSValue> val1; + RefPtr<CSSValue> val2; + int propId1, propId2; + if (parseFillProperty(propId, propId1, propId2, val1, val2)) { + addProperty(propId1, val1.release(), important); + if (val2) + addProperty(propId2, val2.release(), important); + return true; + } + return false; + } + case CSSPropertyListStyleImage: // <uri> | none | inherit + if (id == CSSValueNone) { + parsedValue = CSSImageValue::create(); + m_valueList->next(); + } else if (value->unit == CSSPrimitiveValue::CSS_URI) { + // ### allow string in non strict mode? + String uri = parseURL(value->string); + if (!uri.isNull()) { + parsedValue = CSSImageValue::create(KURL(m_styleSheet->baseURL(), uri).string()); + m_valueList->next(); + } + } else if (value->unit == CSSParserValue::Function && equalIgnoringCase(value->function->name, "-webkit-gradient(")) { + if (parseGradient(parsedValue)) + m_valueList->next(); + else + return false; + } + break; + + case CSSPropertyWebkitTextStrokeWidth: + case CSSPropertyOutlineWidth: // <border-width> | inherit + case CSSPropertyBorderTopWidth: //// <border-width> | inherit + case CSSPropertyBorderRightWidth: // Which is defined as + case CSSPropertyBorderBottomWidth: // thin | medium | thick | <length> + case CSSPropertyBorderLeftWidth: + case CSSPropertyWebkitColumnRuleWidth: + if (id == CSSValueThin || id == CSSValueMedium || id == CSSValueThick) + valid_primitive = true; + else + valid_primitive = validUnit(value, FLength, m_strict); + break; + + case CSSPropertyLetterSpacing: // normal | <length> | inherit + case CSSPropertyWordSpacing: // normal | <length> | inherit + if (id == CSSValueNormal) + valid_primitive = true; + else + valid_primitive = validUnit(value, FLength, m_strict); + break; + + case CSSPropertyWordBreak: // normal | break-all | break-word (this is a custom extension) + if (id == CSSValueNormal || id == CSSValueBreakAll || id == CSSValueBreakWord) + valid_primitive = true; + break; + + case CSSPropertyWordWrap: // normal | break-word + if (id == CSSValueNormal || id == CSSValueBreakWord) + valid_primitive = true; + break; + + case CSSPropertyTextIndent: // <length> | <percentage> | inherit + case CSSPropertyPaddingTop: //// <padding-width> | inherit + case CSSPropertyPaddingRight: // Which is defined as + case CSSPropertyPaddingBottom: // <length> | <percentage> + case CSSPropertyPaddingLeft: //// + case CSSPropertyWebkitPaddingStart: + valid_primitive = (!id && validUnit(value, FLength|FPercent, m_strict)); + break; + + case CSSPropertyMaxHeight: // <length> | <percentage> | none | inherit + case CSSPropertyMaxWidth: // <length> | <percentage> | none | inherit + if (id == CSSValueNone || id == CSSValueIntrinsic || id == CSSValueMinIntrinsic) { + valid_primitive = true; + break; + } + /* nobreak */ + case CSSPropertyMinHeight: // <length> | <percentage> | inherit + case CSSPropertyMinWidth: // <length> | <percentage> | inherit + if (id == CSSValueIntrinsic || id == CSSValueMinIntrinsic) + valid_primitive = true; + else + valid_primitive = (!id && validUnit(value, FLength|FPercent|FNonNeg, m_strict)); + break; + + case CSSPropertyFontSize: + // <absolute-size> | <relative-size> | <length> | <percentage> | inherit + if (id >= CSSValueXxSmall && id <= CSSValueLarger) + valid_primitive = true; + else + valid_primitive = (validUnit(value, FLength|FPercent|FNonNeg, m_strict)); + break; + + case CSSPropertyFontStyle: // normal | italic | oblique | inherit + return parseFontStyle(important); + + case CSSPropertyFontVariant: // normal | small-caps | inherit + return parseFontVariant(important); + + case CSSPropertyVerticalAlign: + // baseline | sub | super | top | text-top | middle | bottom | text-bottom | + // <percentage> | <length> | inherit + + if (id >= CSSValueBaseline && id <= CSSValueWebkitBaselineMiddle) + valid_primitive = true; + else + valid_primitive = (!id && validUnit(value, FLength|FPercent, m_strict)); + break; + + case CSSPropertyHeight: // <length> | <percentage> | auto | inherit + case CSSPropertyWidth: // <length> | <percentage> | auto | inherit + if (id == CSSValueAuto || id == CSSValueIntrinsic || id == CSSValueMinIntrinsic) + valid_primitive = true; + else + // ### handle multilength case where we allow relative units + valid_primitive = (!id && validUnit(value, FLength|FPercent|FNonNeg, m_strict)); + break; + + case CSSPropertyBottom: // <length> | <percentage> | auto | inherit + case CSSPropertyLeft: // <length> | <percentage> | auto | inherit + case CSSPropertyRight: // <length> | <percentage> | auto | inherit + case CSSPropertyTop: // <length> | <percentage> | auto | inherit + case CSSPropertyMarginTop: //// <margin-width> | inherit + case CSSPropertyMarginRight: // Which is defined as + case CSSPropertyMarginBottom: // <length> | <percentage> | auto | inherit + case CSSPropertyMarginLeft: //// + case CSSPropertyWebkitMarginStart: + if (id == CSSValueAuto) + valid_primitive = true; + else + valid_primitive = (!id && validUnit(value, FLength|FPercent, m_strict)); + break; + + case CSSPropertyZIndex: // auto | <integer> | inherit + if (id == CSSValueAuto) { + valid_primitive = true; + break; + } + /* nobreak */ + case CSSPropertyOrphans: // <integer> | inherit + case CSSPropertyWidows: // <integer> | inherit + // ### not supported later on + valid_primitive = (!id && validUnit(value, FInteger, false)); + break; + + case CSSPropertyLineHeight: // normal | <number> | <length> | <percentage> | inherit + if (id == CSSValueNormal) + valid_primitive = true; + else + valid_primitive = (!id && validUnit(value, FNumber|FLength|FPercent|FNonNeg, m_strict)); + break; + case CSSPropertyCounterIncrement: // [ <identifier> <integer>? ]+ | none | inherit + if (id != CSSValueNone) + return parseCounter(propId, 1, important); + valid_primitive = true; + break; + case CSSPropertyCounterReset: // [ <identifier> <integer>? ]+ | none | inherit + if (id != CSSValueNone) + return parseCounter(propId, 0, important); + valid_primitive = true; + break; + case CSSPropertyFontFamily: + // [[ <family-name> | <generic-family> ],]* [<family-name> | <generic-family>] | inherit + { + parsedValue = parseFontFamily(); + break; + } + + case CSSPropertyTextDecoration: + case CSSPropertyWebkitTextDecorationsInEffect: + // none | [ underline || overline || line-through || blink ] | inherit + if (id == CSSValueNone) { + valid_primitive = true; + } else { + RefPtr<CSSValueList> list = CSSValueList::createCommaSeparated(); + bool is_valid = true; + while(is_valid && value) { + switch (value->id) { + case CSSValueBlink: + break; + case CSSValueUnderline: + case CSSValueOverline: + case CSSValueLineThrough: + list->append(CSSPrimitiveValue::createIdentifier(value->id)); + break; + default: + is_valid = false; + } + value = m_valueList->next(); + } + if (list->length() && is_valid) { + parsedValue = list.release(); + m_valueList->next(); + } + } + break; + + case CSSPropertyZoom: // normal | reset | <number> | <percentage> | inherit + if (id == CSSValueNormal || id == CSSValueReset) + valid_primitive = true; + else + valid_primitive = (!id && validUnit(value, FNumber | FPercent | FNonNeg, true)); + break; + + case CSSPropertyTableLayout: // auto | fixed | inherit + if (id == CSSValueAuto || id == CSSValueFixed) + valid_primitive = true; + break; + + case CSSPropertySrc: // Only used within @font-face, so cannot use inherit | initial or be !important. This is a list of urls or local references. + return parseFontFaceSrc(); + + case CSSPropertyUnicodeRange: + return parseFontFaceUnicodeRange(); + + /* CSS3 properties */ + case CSSPropertyWebkitAppearance: + if ((id >= CSSValueCheckbox && id <= CSSValueTextarea) || id == CSSValueNone) + valid_primitive = true; + break; + + case CSSPropertyWebkitBinding: +#if ENABLE(XBL) + if (id == CSSValueNone) + valid_primitive = true; + else { + RefPtr<CSSValueList> values = CSSValueList::createCommaSeparated(); + CSSParserValue* val; + RefPtr<CSSValue> parsedValue; + while ((val = m_valueList->current())) { + if (val->unit == CSSPrimitiveValue::CSS_URI) { + String value = parseURL(val->string); + parsedValue = CSSPrimitiveValue::create(KURL(m_styleSheet->baseURL(), value).string(), + CSSPrimitiveValue::CSS_URI); + } + if (!parsedValue) + break; + + // FIXME: We can't use release() here since we might hit this path twice + // but that logic seems wrong to me to begin with, we convert all non-uri values + // into the last seen URI value!? + // -webkit-binding: url(foo.xml), 1, 2; (if that were valid) is treated as: + // -webkit-binding: url(foo.xml), url(foo.xml), url(foo.xml); !? + values->append(parsedValue.get()); + m_valueList->next(); + } + if (!values->length()) + return false; + + addProperty(propId, values.release(), important); + m_valueList->next(); + return true; + } +#endif + break; + case CSSPropertyWebkitBorderImage: + case CSSPropertyWebkitMaskBoxImage: + if (id == CSSValueNone) + valid_primitive = true; + else { + RefPtr<CSSValue> result; + if (parseBorderImage(propId, important, result)) { + addProperty(propId, result, important); + return true; + } + } + break; + case CSSPropertyWebkitBorderTopRightRadius: + case CSSPropertyWebkitBorderTopLeftRadius: + case CSSPropertyWebkitBorderBottomLeftRadius: + case CSSPropertyWebkitBorderBottomRightRadius: + case CSSPropertyWebkitBorderRadius: { + if (num != 1 && num != 2) + return false; + valid_primitive = validUnit(value, FLength, m_strict); + if (!valid_primitive) + return false; + RefPtr<CSSPrimitiveValue> parsedValue1 = CSSPrimitiveValue::create(value->fValue, (CSSPrimitiveValue::UnitTypes)value->unit); + RefPtr<CSSPrimitiveValue> parsedValue2; + if (num == 2) { + value = m_valueList->next(); + valid_primitive = validUnit(value, FLength, m_strict); + if (!valid_primitive) + return false; + parsedValue2 = CSSPrimitiveValue::create(value->fValue, (CSSPrimitiveValue::UnitTypes)value->unit); + } else + parsedValue2 = parsedValue1; + + RefPtr<Pair> pair = Pair::create(parsedValue1.release(), parsedValue2.release()); + RefPtr<CSSPrimitiveValue> val = CSSPrimitiveValue::create(pair.release()); + if (propId == CSSPropertyWebkitBorderRadius) { + const int properties[4] = { CSSPropertyWebkitBorderTopRightRadius, + CSSPropertyWebkitBorderTopLeftRadius, + CSSPropertyWebkitBorderBottomLeftRadius, + CSSPropertyWebkitBorderBottomRightRadius }; + for (int i = 0; i < 4; i++) + addProperty(properties[i], val.get(), important); + } else + addProperty(propId, val.release(), important); + return true; + } + case CSSPropertyOutlineOffset: + valid_primitive = validUnit(value, FLength, m_strict); + break; + case CSSPropertyTextShadow: // CSS2 property, dropped in CSS2.1, back in CSS3, so treat as CSS3 + case CSSPropertyWebkitBoxShadow: + if (id == CSSValueNone) + valid_primitive = true; + else + return parseShadow(propId, important); + break; + case CSSPropertyWebkitBoxReflect: + if (id == CSSValueNone) + valid_primitive = true; + else + return parseReflect(propId, important); + break; + case CSSPropertyOpacity: + valid_primitive = validUnit(value, FNumber, m_strict); + break; + case CSSPropertyWebkitBoxAlign: + if (id == CSSValueStretch || id == CSSValueStart || id == CSSValueEnd || + id == CSSValueCenter || id == CSSValueBaseline) + valid_primitive = true; + break; + case CSSPropertyWebkitBoxDirection: + if (id == CSSValueNormal || id == CSSValueReverse) + valid_primitive = true; + break; + case CSSPropertyWebkitBoxLines: + if (id == CSSValueSingle || id == CSSValueMultiple) + valid_primitive = true; + break; + case CSSPropertyWebkitBoxOrient: + if (id == CSSValueHorizontal || id == CSSValueVertical || + id == CSSValueInlineAxis || id == CSSValueBlockAxis) + valid_primitive = true; + break; + case CSSPropertyWebkitBoxPack: + if (id == CSSValueStart || id == CSSValueEnd || + id == CSSValueCenter || id == CSSValueJustify) + valid_primitive = true; + break; + case CSSPropertyWebkitBoxFlex: + valid_primitive = validUnit(value, FNumber, m_strict); + break; + case CSSPropertyWebkitBoxFlexGroup: + case CSSPropertyWebkitBoxOrdinalGroup: + valid_primitive = validUnit(value, FInteger|FNonNeg, true); + break; + case CSSPropertyWebkitBoxSizing: + valid_primitive = id == CSSValueBorderBox || id == CSSValueContentBox; + break; + case CSSPropertyWebkitMarquee: { + const int properties[5] = { CSSPropertyWebkitMarqueeDirection, CSSPropertyWebkitMarqueeIncrement, + CSSPropertyWebkitMarqueeRepetition, + CSSPropertyWebkitMarqueeStyle, CSSPropertyWebkitMarqueeSpeed }; + return parseShorthand(propId, properties, 5, important); + } + case CSSPropertyWebkitMarqueeDirection: + if (id == CSSValueForwards || id == CSSValueBackwards || id == CSSValueAhead || + id == CSSValueReverse || id == CSSValueLeft || id == CSSValueRight || id == CSSValueDown || + id == CSSValueUp || id == CSSValueAuto) + valid_primitive = true; + break; + case CSSPropertyWebkitMarqueeIncrement: + if (id == CSSValueSmall || id == CSSValueLarge || id == CSSValueMedium) + valid_primitive = true; + else + valid_primitive = validUnit(value, FLength|FPercent, m_strict); + break; + case CSSPropertyWebkitMarqueeStyle: + if (id == CSSValueNone || id == CSSValueSlide || id == CSSValueScroll || id == CSSValueAlternate) + valid_primitive = true; + break; + case CSSPropertyWebkitMarqueeRepetition: + if (id == CSSValueInfinite) + valid_primitive = true; + else + valid_primitive = validUnit(value, FInteger|FNonNeg, m_strict); + break; + case CSSPropertyWebkitMarqueeSpeed: + if (id == CSSValueNormal || id == CSSValueSlow || id == CSSValueFast) + valid_primitive = true; + else + valid_primitive = validUnit(value, FTime|FInteger|FNonNeg, m_strict); + break; + case CSSPropertyWebkitUserDrag: // auto | none | element + if (id == CSSValueAuto || id == CSSValueNone || id == CSSValueElement) + valid_primitive = true; + break; + case CSSPropertyWebkitUserModify: // read-only | read-write + if (id == CSSValueReadOnly || id == CSSValueReadWrite || id == CSSValueReadWritePlaintextOnly) + valid_primitive = true; + break; + case CSSPropertyWebkitUserSelect: // auto | none | text + if (id == CSSValueAuto || id == CSSValueNone || id == CSSValueText) + valid_primitive = true; + break; + case CSSPropertyTextOverflow: // clip | ellipsis + if (id == CSSValueClip || id == CSSValueEllipsis) + valid_primitive = true; + break; + case CSSPropertyWebkitTransform: + if (id == CSSValueNone) + valid_primitive = true; + else { + PassRefPtr<CSSValue> val = parseTransform(); + if (val) { + addProperty(propId, val, important); + return true; + } + return false; + } + break; + case CSSPropertyWebkitTransformOrigin: + case CSSPropertyWebkitTransformOriginX: + case CSSPropertyWebkitTransformOriginY: { + RefPtr<CSSValue> val1; + RefPtr<CSSValue> val2; + int propId1, propId2; + if (parseTransformOrigin(propId, propId1, propId2, val1, val2)) { + addProperty(propId1, val1.release(), important); + if (val2) + addProperty(propId2, val2.release(), important); + return true; + } + return false; + } + case CSSPropertyWebkitAnimationDelay: + case CSSPropertyWebkitAnimationDirection: + case CSSPropertyWebkitAnimationDuration: + case CSSPropertyWebkitAnimationName: + case CSSPropertyWebkitAnimationPlayState: + case CSSPropertyWebkitAnimationIterationCount: + case CSSPropertyWebkitAnimationTimingFunction: + case CSSPropertyWebkitTransitionDelay: + case CSSPropertyWebkitTransitionDuration: + case CSSPropertyWebkitTransitionTimingFunction: + case CSSPropertyWebkitTransitionProperty: { + RefPtr<CSSValue> val; + if (parseAnimationProperty(propId, val)) { + addProperty(propId, val.release(), important); + return true; + } + return false; + } + case CSSPropertyWebkitMarginCollapse: { + const int properties[2] = { CSSPropertyWebkitMarginTopCollapse, + CSSPropertyWebkitMarginBottomCollapse }; + if (num == 1) { + ShorthandScope scope(this, CSSPropertyWebkitMarginCollapse); + if (!parseValue(properties[0], important)) + return false; + CSSValue* value = m_parsedProperties[m_numParsedProperties-1]->value(); + addProperty(properties[1], value, important); + return true; + } + else if (num == 2) { + ShorthandScope scope(this, CSSPropertyWebkitMarginCollapse); + if (!parseValue(properties[0], important) || !parseValue(properties[1], important)) + return false; + return true; + } + return false; + } + case CSSPropertyWebkitMarginTopCollapse: + case CSSPropertyWebkitMarginBottomCollapse: + if (id == CSSValueCollapse || id == CSSValueSeparate || id == CSSValueDiscard) + valid_primitive = true; + break; + case CSSPropertyTextLineThroughMode: + case CSSPropertyTextOverlineMode: + case CSSPropertyTextUnderlineMode: + if (id == CSSValueContinuous || id == CSSValueSkipWhiteSpace) + valid_primitive = true; + break; + case CSSPropertyTextLineThroughStyle: + case CSSPropertyTextOverlineStyle: + case CSSPropertyTextUnderlineStyle: + if (id == CSSValueNone || id == CSSValueSolid || id == CSSValueDouble || + id == CSSValueDashed || id == CSSValueDotDash || id == CSSValueDotDotDash || + id == CSSValueWave) + valid_primitive = true; + break; + case CSSPropertyTextLineThroughWidth: + case CSSPropertyTextOverlineWidth: + case CSSPropertyTextUnderlineWidth: + if (id == CSSValueAuto || id == CSSValueNormal || id == CSSValueThin || + id == CSSValueMedium || id == CSSValueThick) + valid_primitive = true; + else + valid_primitive = !id && validUnit(value, FNumber|FLength|FPercent, m_strict); + break; + case CSSPropertyResize: // none | both | horizontal | vertical | auto + if (id == CSSValueNone || id == CSSValueBoth || id == CSSValueHorizontal || id == CSSValueVertical || id == CSSValueAuto) + valid_primitive = true; + break; + case CSSPropertyWebkitColumnCount: + if (id == CSSValueAuto) + valid_primitive = true; + else + valid_primitive = !id && validUnit(value, FInteger | FNonNeg, false); + break; + case CSSPropertyWebkitColumnGap: // normal | <length> + if (id == CSSValueNormal) + valid_primitive = true; + else + valid_primitive = validUnit(value, FLength | FNonNeg, m_strict); + break; + case CSSPropertyWebkitColumnWidth: // auto | <length> + if (id == CSSValueAuto) + valid_primitive = true; + else // Always parse this property in strict mode, since it would be ambiguous otherwise when used in the 'columns' shorthand property. + valid_primitive = validUnit(value, FLength, true); + break; + // End of CSS3 properties + + // Apple specific properties. These will never be standardized and are purely to + // support custom WebKit-based Apple applications. + case CSSPropertyWebkitLineClamp: + valid_primitive = (!id && validUnit(value, FPercent, false)); + break; + case CSSPropertyWebkitTextSizeAdjust: + if (id == CSSValueAuto || id == CSSValueNone) + valid_primitive = true; + break; + case CSSPropertyWebkitRtlOrdering: + if (id == CSSValueLogical || id == CSSValueVisual) + valid_primitive = true; + break; + + case CSSPropertyWebkitFontSizeDelta: // <length> + valid_primitive = validUnit(value, FLength, m_strict); + break; + + case CSSPropertyWebkitNbspMode: // normal | space + if (id == CSSValueNormal || id == CSSValueSpace) + valid_primitive = true; + break; + + case CSSPropertyWebkitLineBreak: // normal | after-white-space + if (id == CSSValueNormal || id == CSSValueAfterWhiteSpace) + valid_primitive = true; + break; + + case CSSPropertyWebkitMatchNearestMailBlockquoteColor: // normal | match + if (id == CSSValueNormal || id == CSSValueMatch) + valid_primitive = true; + break; + + case CSSPropertyWebkitHighlight: + if (id == CSSValueNone || value->unit == CSSPrimitiveValue::CSS_STRING) + valid_primitive = true; + break; + + case CSSPropertyWebkitBorderFit: + if (id == CSSValueBorder || id == CSSValueLines) + valid_primitive = true; + break; + + case CSSPropertyWebkitTextSecurity: + // disc | circle | square | none | inherit + if (id == CSSValueDisc || id == CSSValueCircle || id == CSSValueSquare|| id == CSSValueNone) + valid_primitive = true; + break; + +#if ENABLE(DASHBOARD_SUPPORT) + case CSSPropertyWebkitDashboardRegion: // <dashboard-region> | <dashboard-region> + if (value->unit == CSSParserValue::Function || id == CSSValueNone) + return parseDashboardRegions(propId, important); + break; +#endif + // End Apple-specific properties + + /* shorthand properties */ + case CSSPropertyBackground: { + // Position must come before color in this array because a plain old "0" is a legal color + // in quirks mode but it's usually the X coordinate of a position. + // FIXME: Add CSSPropertyWebkitBackgroundSize to the shorthand. + const int properties[] = { CSSPropertyBackgroundImage, CSSPropertyBackgroundRepeat, + CSSPropertyBackgroundAttachment, CSSPropertyBackgroundPosition, CSSPropertyWebkitBackgroundClip, + CSSPropertyWebkitBackgroundOrigin, CSSPropertyBackgroundColor }; + return parseFillShorthand(propId, properties, 7, important); + } + case CSSPropertyWebkitMask: { + const int properties[] = { CSSPropertyWebkitMaskImage, CSSPropertyWebkitMaskRepeat, + CSSPropertyWebkitMaskAttachment, CSSPropertyWebkitMaskPosition, CSSPropertyWebkitMaskClip, + CSSPropertyWebkitMaskOrigin }; + return parseFillShorthand(propId, properties, 6, important); + } + case CSSPropertyBorder: + // [ 'border-width' || 'border-style' || <color> ] | inherit + { + const int properties[3] = { CSSPropertyBorderWidth, CSSPropertyBorderStyle, + CSSPropertyBorderColor }; + return parseShorthand(propId, properties, 3, important); + } + case CSSPropertyBorderTop: + // [ 'border-top-width' || 'border-style' || <color> ] | inherit + { + const int properties[3] = { CSSPropertyBorderTopWidth, CSSPropertyBorderTopStyle, + CSSPropertyBorderTopColor}; + return parseShorthand(propId, properties, 3, important); + } + case CSSPropertyBorderRight: + // [ 'border-right-width' || 'border-style' || <color> ] | inherit + { + const int properties[3] = { CSSPropertyBorderRightWidth, CSSPropertyBorderRightStyle, + CSSPropertyBorderRightColor }; + return parseShorthand(propId, properties, 3, important); + } + case CSSPropertyBorderBottom: + // [ 'border-bottom-width' || 'border-style' || <color> ] | inherit + { + const int properties[3] = { CSSPropertyBorderBottomWidth, CSSPropertyBorderBottomStyle, + CSSPropertyBorderBottomColor }; + return parseShorthand(propId, properties, 3, important); + } + case CSSPropertyBorderLeft: + // [ 'border-left-width' || 'border-style' || <color> ] | inherit + { + const int properties[3] = { CSSPropertyBorderLeftWidth, CSSPropertyBorderLeftStyle, + CSSPropertyBorderLeftColor }; + return parseShorthand(propId, properties, 3, important); + } + case CSSPropertyOutline: + // [ 'outline-color' || 'outline-style' || 'outline-width' ] | inherit + { + const int properties[3] = { CSSPropertyOutlineWidth, CSSPropertyOutlineStyle, + CSSPropertyOutlineColor }; + return parseShorthand(propId, properties, 3, important); + } + case CSSPropertyBorderColor: + // <color>{1,4} | inherit + { + const int properties[4] = { CSSPropertyBorderTopColor, CSSPropertyBorderRightColor, + CSSPropertyBorderBottomColor, CSSPropertyBorderLeftColor }; + return parse4Values(propId, properties, important); + } + case CSSPropertyBorderWidth: + // <border-width>{1,4} | inherit + { + const int properties[4] = { CSSPropertyBorderTopWidth, CSSPropertyBorderRightWidth, + CSSPropertyBorderBottomWidth, CSSPropertyBorderLeftWidth }; + return parse4Values(propId, properties, important); + } + case CSSPropertyBorderStyle: + // <border-style>{1,4} | inherit + { + const int properties[4] = { CSSPropertyBorderTopStyle, CSSPropertyBorderRightStyle, + CSSPropertyBorderBottomStyle, CSSPropertyBorderLeftStyle }; + return parse4Values(propId, properties, important); + } + case CSSPropertyMargin: + // <margin-width>{1,4} | inherit + { + const int properties[4] = { CSSPropertyMarginTop, CSSPropertyMarginRight, + CSSPropertyMarginBottom, CSSPropertyMarginLeft }; + return parse4Values(propId, properties, important); + } + case CSSPropertyPadding: + // <padding-width>{1,4} | inherit + { + const int properties[4] = { CSSPropertyPaddingTop, CSSPropertyPaddingRight, + CSSPropertyPaddingBottom, CSSPropertyPaddingLeft }; + return parse4Values(propId, properties, important); + } + case CSSPropertyFont: + // [ [ 'font-style' || 'font-variant' || 'font-weight' ]? 'font-size' [ / 'line-height' ]? + // 'font-family' ] | caption | icon | menu | message-box | small-caption | status-bar | inherit + if (id >= CSSValueCaption && id <= CSSValueStatusBar) + valid_primitive = true; + else + return parseFont(important); + break; + case CSSPropertyListStyle: + { + const int properties[3] = { CSSPropertyListStyleType, CSSPropertyListStylePosition, + CSSPropertyListStyleImage }; + return parseShorthand(propId, properties, 3, important); + } + case CSSPropertyWebkitColumns: { + const int properties[2] = { CSSPropertyWebkitColumnWidth, CSSPropertyWebkitColumnCount }; + return parseShorthand(propId, properties, 2, important); + } + case CSSPropertyWebkitColumnRule: { + const int properties[3] = { CSSPropertyWebkitColumnRuleWidth, CSSPropertyWebkitColumnRuleStyle, + CSSPropertyWebkitColumnRuleColor }; + return parseShorthand(propId, properties, 3, important); + } + case CSSPropertyWebkitTextStroke: { + const int properties[2] = { CSSPropertyWebkitTextStrokeWidth, CSSPropertyWebkitTextStrokeColor }; + return parseShorthand(propId, properties, 2, important); + } + case CSSPropertyWebkitAnimation: + return parseAnimationShorthand(important); + case CSSPropertyWebkitTransition: + return parseTransitionShorthand(important); + case CSSPropertyInvalid: + return false; + case CSSPropertyFontStretch: + case CSSPropertyPage: + case CSSPropertyTextLineThrough: + case CSSPropertyTextOverline: + case CSSPropertyTextUnderline: + return false; +#ifdef ANDROID_CSS_TAP_HIGHLIGHT_COLOR + case CSSPropertyWebkitTapHighlightColor: + parsedValue = parseColor(); + if (parsedValue) + m_valueList->next(); + break; +#endif + +#if ENABLE(SVG) + default: + return parseSVGValue(propId, important); +#endif + } + + 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 = CSSQuirkPrimitiveValue::create(value->fValue, CSSPrimitiveValue::CSS_EMS); + m_valueList->next(); + } + if (parsedValue) { + if (!m_valueList->current() || inShorthand()) { + addProperty(propId, parsedValue.release(), important); + return true; + } + } + return false; +} + +void CSSParser::addFillValue(RefPtr<CSSValue>& lval, PassRefPtr<CSSValue> rval) +{ + if (lval) { + if (lval->isValueList()) + static_cast<CSSValueList*>(lval.get())->append(rval); + else { + PassRefPtr<CSSValue> oldlVal(lval.release()); + PassRefPtr<CSSValueList> list = CSSValueList::createCommaSeparated(); + list->append(oldlVal); + list->append(rval); + lval = list; + } + } + else + lval = rval; +} + +const int cMaxFillProperties = 7; + +bool CSSParser::parseFillShorthand(int propId, const int* properties, int numProperties, bool important) +{ + ASSERT(numProperties <= cMaxFillProperties); + if (numProperties > cMaxFillProperties) + return false; + + ShorthandScope scope(this, propId); + + bool parsedProperty[cMaxFillProperties] = { false }; + RefPtr<CSSValue> values[cMaxFillProperties]; + RefPtr<CSSValue> positionYValue; + int i; + + while (m_valueList->current()) { + CSSParserValue* val = m_valueList->current(); + if (val->unit == CSSParserValue::Operator && val->iValue == ',') { + // We hit the end. Fill in all remaining values with the initial value. + m_valueList->next(); + for (i = 0; i < numProperties; ++i) { + if (properties[i] == CSSPropertyBackgroundColor && parsedProperty[i]) + // Color is not allowed except as the last item in a list for backgrounds. + // Reject the entire property. + return false; + + if (!parsedProperty[i] && properties[i] != CSSPropertyBackgroundColor) { + addFillValue(values[i], CSSInitialValue::createImplicit()); + if (properties[i] == CSSPropertyBackgroundPosition || properties[i] == CSSPropertyWebkitMaskPosition) + addFillValue(positionYValue, CSSInitialValue::createImplicit()); + } + parsedProperty[i] = false; + } + if (!m_valueList->current()) + break; + } + + bool found = false; + for (i = 0; !found && i < numProperties; ++i) { + if (!parsedProperty[i]) { + RefPtr<CSSValue> val1; + RefPtr<CSSValue> val2; + int propId1, propId2; + if (parseFillProperty(properties[i], propId1, propId2, val1, val2)) { + parsedProperty[i] = found = true; + addFillValue(values[i], val1.release()); + if (properties[i] == CSSPropertyBackgroundPosition || properties[i] == CSSPropertyWebkitMaskPosition) + addFillValue(positionYValue, val2.release()); + } + } + } + + // if we didn't find at least one match, this is an + // invalid shorthand and we have to ignore it + if (!found) + return false; + } + + // Fill in any remaining properties with the initial value. + for (i = 0; i < numProperties; ++i) { + if (!parsedProperty[i]) { + addFillValue(values[i], CSSInitialValue::createImplicit()); + if (properties[i] == CSSPropertyBackgroundPosition || properties[i] == CSSPropertyWebkitMaskPosition) + addFillValue(positionYValue, CSSInitialValue::createImplicit()); + } + } + + // Now add all of the properties we found. + for (i = 0; i < numProperties; i++) { + if (properties[i] == CSSPropertyBackgroundPosition) { + addProperty(CSSPropertyBackgroundPositionX, values[i].release(), important); + // it's OK to call positionYValue.release() since we only see CSSPropertyBackgroundPosition once + addProperty(CSSPropertyBackgroundPositionY, positionYValue.release(), important); + } else if (properties[i] == CSSPropertyWebkitMaskPosition) { + addProperty(CSSPropertyWebkitMaskPositionX, values[i].release(), important); + // it's OK to call positionYValue.release() since we only see CSSPropertyWebkitMaskPosition once + addProperty(CSSPropertyWebkitMaskPositionY, positionYValue.release(), important); + } else + addProperty(properties[i], values[i].release(), important); + } + + return true; +} + +void CSSParser::addAnimationValue(RefPtr<CSSValue>& lval, PassRefPtr<CSSValue> rval) +{ + if (lval) { + if (lval->isValueList()) + static_cast<CSSValueList*>(lval.get())->append(rval); + else { + PassRefPtr<CSSValue> oldVal(lval.release()); + PassRefPtr<CSSValueList> list = CSSValueList::createCommaSeparated(); + list->append(oldVal); + list->append(rval); + lval = list; + } + } + else + lval = rval; +} + +bool CSSParser::parseAnimationShorthand(bool important) +{ + const int properties[] = { CSSPropertyWebkitAnimationName, + CSSPropertyWebkitAnimationDuration, + CSSPropertyWebkitAnimationTimingFunction, + CSSPropertyWebkitAnimationDelay, + CSSPropertyWebkitAnimationIterationCount, + CSSPropertyWebkitAnimationDirection }; + const int numProperties = sizeof(properties) / sizeof(properties[0]); + + ShorthandScope scope(this, CSSPropertyWebkitAnimation); + + bool parsedProperty[numProperties] = { false }; // compiler will repeat false as necessary + RefPtr<CSSValue> values[numProperties]; + + int i; + while (m_valueList->current()) { + CSSParserValue* val = m_valueList->current(); + if (val->unit == CSSParserValue::Operator && val->iValue == ',') { + // We hit the end. Fill in all remaining values with the initial value. + m_valueList->next(); + for (i = 0; i < numProperties; ++i) { + if (!parsedProperty[i]) + addAnimationValue(values[i], CSSInitialValue::createImplicit()); + parsedProperty[i] = false; + } + if (!m_valueList->current()) + break; + } + + bool found = false; + for (i = 0; !found && i < numProperties; ++i) { + if (!parsedProperty[i]) { + RefPtr<CSSValue> val; + if (parseAnimationProperty(properties[i], val)) { + parsedProperty[i] = found = true; + addAnimationValue(values[i], val.release()); + } + } + } + + // if we didn't find at least one match, this is an + // invalid shorthand and we have to ignore it + if (!found) + return false; + } + + // Fill in any remaining properties with the initial value. + for (i = 0; i < numProperties; ++i) { + if (!parsedProperty[i]) + addAnimationValue(values[i], CSSInitialValue::createImplicit()); + } + + // Now add all of the properties we found. + for (i = 0; i < numProperties; i++) + addProperty(properties[i], values[i].release(), important); + + return true; +} + +bool CSSParser::parseTransitionShorthand(bool important) +{ + const int properties[] = { CSSPropertyWebkitTransitionProperty, + CSSPropertyWebkitTransitionDuration, + CSSPropertyWebkitTransitionTimingFunction }; + const int numProperties = sizeof(properties) / sizeof(properties[0]); + + ShorthandScope scope(this, CSSPropertyWebkitTransition); + + bool parsedProperty[numProperties] = { false }; // compiler will repeat false as necessary + RefPtr<CSSValue> values[numProperties]; + + int i; + while (m_valueList->current()) { + CSSParserValue* val = m_valueList->current(); + if (val->unit == CSSParserValue::Operator && val->iValue == ',') { + // We hit the end. Fill in all remaining values with the initial value. + m_valueList->next(); + for (i = 0; i < numProperties; ++i) { + if (!parsedProperty[i]) + addAnimationValue(values[i], CSSInitialValue::createImplicit()); + parsedProperty[i] = false; + } + if (!m_valueList->current()) + break; + } + + bool found = false; + for (i = 0; !found && i < numProperties; ++i) { + if (!parsedProperty[i]) { + RefPtr<CSSValue> val; + if (parseAnimationProperty(properties[i], val)) { + parsedProperty[i] = found = true; + addAnimationValue(values[i], val.release()); + } + } + } + + // if we didn't find at least one match, this is an + // invalid shorthand and we have to ignore it + if (!found) + return false; + } + + // Fill in any remaining properties with the initial value. + for (i = 0; i < numProperties; ++i) { + if (!parsedProperty[i]) + addAnimationValue(values[i], CSSInitialValue::createImplicit()); + } + + // Now add all of the properties we found. + for (i = 0; i < numProperties; i++) + addProperty(properties[i], values[i].release(), important); + + return true; +} + +bool CSSParser::parseShorthand(int propId, const int *properties, int numProperties, bool important) +{ + // We try to match as many properties as possible + // We set up an array of booleans to mark which property has been found, + // and we try to search for properties until it makes no longer any sense. + ShorthandScope scope(this, propId); + + bool found = false; + bool fnd[6]; // Trust me ;) + for (int i = 0; i < numProperties; i++) + fnd[i] = false; + + while (m_valueList->current()) { + found = false; + for (int propIndex = 0; !found && propIndex < numProperties; ++propIndex) { + if (!fnd[propIndex]) { + if (parseValue(properties[propIndex], important)) + fnd[propIndex] = found = true; + } + } + + // if we didn't find at least one match, this is an + // invalid shorthand and we have to ignore it + if (!found) + return false; + } + + // Fill in any remaining properties with the initial value. + m_implicitShorthand = true; + for (int i = 0; i < numProperties; ++i) { + if (!fnd[i]) + addProperty(properties[i], CSSInitialValue::createImplicit(), important); + } + m_implicitShorthand = false; + + return true; +} + +bool CSSParser::parse4Values(int propId, const int *properties, bool important) +{ + /* From the CSS 2 specs, 8.3 + * If there is only one value, it applies to all sides. If there are two values, the top and + * bottom margins are set to the first value and the right and left margins are set to the second. + * If there are three values, the top is set to the first value, the left and right are set to the + * second, and the bottom is set to the third. If there are four values, they apply to the top, + * right, bottom, and left, respectively. + */ + + int num = inShorthand() ? 1 : m_valueList->size(); + + ShorthandScope scope(this, propId); + + // the order is top, right, bottom, left + switch (num) { + case 1: { + if (!parseValue(properties[0], important)) + return false; + CSSValue *value = m_parsedProperties[m_numParsedProperties-1]->value(); + m_implicitShorthand = true; + addProperty(properties[1], value, important); + addProperty(properties[2], value, important); + addProperty(properties[3], value, important); + m_implicitShorthand = false; + break; + } + case 2: { + if (!parseValue(properties[0], important) || !parseValue(properties[1], important)) + return false; + CSSValue *value = m_parsedProperties[m_numParsedProperties-2]->value(); + m_implicitShorthand = true; + addProperty(properties[2], value, important); + value = m_parsedProperties[m_numParsedProperties-2]->value(); + addProperty(properties[3], value, important); + m_implicitShorthand = false; + break; + } + case 3: { + if (!parseValue(properties[0], important) || !parseValue(properties[1], important) || !parseValue(properties[2], important)) + return false; + CSSValue *value = m_parsedProperties[m_numParsedProperties-2]->value(); + m_implicitShorthand = true; + addProperty(properties[3], value, important); + m_implicitShorthand = false; + break; + } + case 4: { + if (!parseValue(properties[0], important) || !parseValue(properties[1], important) || + !parseValue(properties[2], important) || !parseValue(properties[3], important)) + return false; + break; + } + default: { + return false; + } + } + + return true; +} + +// [ <string> | <uri> | <counter> | attr(X) | open-quote | close-quote | no-open-quote | no-close-quote ]+ | inherit +// in CSS 2.1 this got somewhat reduced: +// [ <string> | attr(X) | open-quote | close-quote | no-open-quote | no-close-quote ]+ | inherit +bool CSSParser::parseContent(int propId, bool important) +{ + RefPtr<CSSValueList> values = CSSValueList::createCommaSeparated(); + + while (CSSParserValue* val = m_valueList->current()) { + RefPtr<CSSValue> parsedValue; + if (val->unit == CSSPrimitiveValue::CSS_URI) { + // url + String value = parseURL(val->string); + parsedValue = CSSImageValue::create(KURL(m_styleSheet->baseURL(), value).string()); + } else if (val->unit == CSSParserValue::Function) { + // attr(X) | counter(X [,Y]) | counters(X, Y, [,Z]) | -webkit-gradient(...) + CSSParserValueList* args = val->function->args; + if (!args) + return false; + if (equalIgnoringCase(val->function->name, "attr(")) { + if (args->size() != 1) + return false; + CSSParserValue* a = args->current(); + String attrName = a->string; + if (document()->isHTMLDocument()) + attrName = attrName.lower(); + parsedValue = CSSPrimitiveValue::create(attrName, CSSPrimitiveValue::CSS_ATTR); + } else if (equalIgnoringCase(val->function->name, "counter(")) { + parsedValue = parseCounterContent(args, false); + if (!parsedValue) return false; + } else if (equalIgnoringCase(val->function->name, "counters(")) { + parsedValue = parseCounterContent(args, true); + if (!parsedValue) + return false; + } else if (equalIgnoringCase(val->function->name, "-webkit-gradient(")) { + if (!parseGradient(parsedValue)) + return false; + } else if (equalIgnoringCase(val->function->name, "-webkit-canvas(")) { + if (!parseCanvas(parsedValue)) + return false; + } else + return false; + } else if (val->unit == CSSPrimitiveValue::CSS_IDENT) { + // open-quote + // close-quote + // no-open-quote + // no-close-quote + // FIXME: These are not yet implemented (http://bugs.webkit.org/show_bug.cgi?id=6503). + } else if (val->unit == CSSPrimitiveValue::CSS_STRING) { + parsedValue = CSSPrimitiveValue::create(val->string, CSSPrimitiveValue::CSS_STRING); + } + if (!parsedValue) + break; + values->append(parsedValue.release()); + m_valueList->next(); + } + + if (values->length()) { + addProperty(propId, values.release(), important); + m_valueList->next(); + return true; + } + + return false; +} + +PassRefPtr<CSSValue> CSSParser::parseBackgroundColor() +{ + int id = m_valueList->current()->id; + if (id == CSSValueWebkitText || (id >= CSSValueAqua && id <= CSSValueWindowtext) || id == CSSValueMenu || id == CSSValueCurrentcolor || + (id >= CSSValueGrey && id < CSSValueWebkitText && !m_strict)) + return CSSPrimitiveValue::createIdentifier(id); + return parseColor(); +} + +bool CSSParser::parseFillImage(RefPtr<CSSValue>& value) +{ + if (m_valueList->current()->id == CSSValueNone) { + value = CSSImageValue::create(); + return true; + } + if (m_valueList->current()->unit == CSSPrimitiveValue::CSS_URI) { + String uri = parseURL(m_valueList->current()->string); + if (!uri.isNull()) + value = CSSImageValue::create(KURL(m_styleSheet->baseURL(), uri).string()); + return true; + } + + if (m_valueList->current()->unit == CSSParserValue::Function) { + if (equalIgnoringCase(m_valueList->current()->function->name, "-webkit-gradient(")) + return parseGradient(value); + if (equalIgnoringCase(m_valueList->current()->function->name, "-webkit-canvas(")) + return parseCanvas(value); + } + return false; +} + +PassRefPtr<CSSValue> CSSParser::parseFillPositionXY(bool& xFound, bool& yFound) +{ + int id = m_valueList->current()->id; + if (id == CSSValueLeft || id == CSSValueTop || id == CSSValueRight || id == CSSValueBottom || id == CSSValueCenter) { + int percent = 0; + if (id == CSSValueLeft || id == CSSValueRight) { + if (xFound) + return 0; + xFound = true; + if (id == CSSValueRight) + percent = 100; + } + else if (id == CSSValueTop || id == CSSValueBottom) { + if (yFound) + return 0; + yFound = true; + if (id == CSSValueBottom) + percent = 100; + } + else if (id == CSSValueCenter) + // Center is ambiguous, so we're not sure which position we've found yet, an x or a y. + percent = 50; + return CSSPrimitiveValue::create(percent, CSSPrimitiveValue::CSS_PERCENTAGE); + } + if (validUnit(m_valueList->current(), FPercent|FLength, m_strict)) + return CSSPrimitiveValue::create(m_valueList->current()->fValue, + (CSSPrimitiveValue::UnitTypes)m_valueList->current()->unit); + + return 0; +} + +void CSSParser::parseFillPosition(RefPtr<CSSValue>& value1, RefPtr<CSSValue>& value2) +{ + CSSParserValue* value = m_valueList->current(); + + // Parse the first value. We're just making sure that it is one of the valid keywords or a percentage/length. + bool value1IsX = false, value1IsY = false; + value1 = parseFillPositionXY(value1IsX, value1IsY); + if (!value1) + return; + + // It only takes one value for background-position to be correctly parsed if it was specified in a shorthand (since we + // can assume that any other values belong to the rest of the shorthand). If we're not parsing a shorthand, though, the + // value was explicitly specified for our property. + value = m_valueList->next(); + + // First check for the comma. If so, we are finished parsing this value or value pair. + if (value && value->unit == CSSParserValue::Operator && value->iValue == ',') + value = 0; + + bool value2IsX = false, value2IsY = false; + if (value) { + value2 = parseFillPositionXY(value2IsX, value2IsY); + if (value2) + m_valueList->next(); + else { + if (!inShorthand()) { + value1.clear(); + return; + } + } + } + + if (!value2) + // Only one value was specified. If that value was not a keyword, then it sets the x position, and the y position + // is simply 50%. This is our default. + // For keywords, the keyword was either an x-keyword (left/right), a y-keyword (top/bottom), or an ambiguous keyword (center). + // For left/right/center, the default of 50% in the y is still correct. + value2 = CSSPrimitiveValue::create(50, CSSPrimitiveValue::CSS_PERCENTAGE); + + if (value1IsY || value2IsX) + value1.swap(value2); +} + +PassRefPtr<CSSValue> CSSParser::parseFillSize() +{ + CSSParserValue* value = m_valueList->current(); + RefPtr<CSSPrimitiveValue> parsedValue1; + + if (value->id == CSSValueAuto) + parsedValue1 = CSSPrimitiveValue::create(0, CSSPrimitiveValue::CSS_UNKNOWN); + else { + if (!validUnit(value, FLength|FPercent, m_strict)) + return 0; + parsedValue1 = CSSPrimitiveValue::create(value->fValue, (CSSPrimitiveValue::UnitTypes)value->unit); + } + + RefPtr<CSSPrimitiveValue> parsedValue2 = parsedValue1; + if ((value = m_valueList->next())) { + if (value->id == CSSValueAuto) + parsedValue2 = CSSPrimitiveValue::create(0, CSSPrimitiveValue::CSS_UNKNOWN); + else { + if (!validUnit(value, FLength|FPercent, m_strict)) + return 0; + parsedValue2 = CSSPrimitiveValue::create(value->fValue, (CSSPrimitiveValue::UnitTypes)value->unit); + } + } + + return CSSPrimitiveValue::create(Pair::create(parsedValue1.release(), parsedValue2.release())); +} + +bool CSSParser::parseFillProperty(int propId, int& propId1, int& propId2, + RefPtr<CSSValue>& retValue1, RefPtr<CSSValue>& retValue2) +{ + RefPtr<CSSValueList> values; + RefPtr<CSSValueList> values2; + CSSParserValue* val; + RefPtr<CSSValue> value; + RefPtr<CSSValue> value2; + + bool allowComma = false; + + retValue1 = retValue2 = 0; + propId1 = propId; + propId2 = propId; + if (propId == CSSPropertyBackgroundPosition) { + propId1 = CSSPropertyBackgroundPositionX; + propId2 = CSSPropertyBackgroundPositionY; + } else if (propId == CSSPropertyWebkitMaskPosition) { + propId1 = CSSPropertyWebkitMaskPositionX; + propId2 = CSSPropertyWebkitMaskPositionY; + } + + while ((val = m_valueList->current())) { + RefPtr<CSSValue> currValue; + RefPtr<CSSValue> currValue2; + + if (allowComma) { + if (val->unit != CSSParserValue::Operator || val->iValue != ',') + return false; + m_valueList->next(); + allowComma = false; + } else { + switch (propId) { + case CSSPropertyBackgroundColor: + currValue = parseBackgroundColor(); + if (currValue) + m_valueList->next(); + break; + case CSSPropertyBackgroundAttachment: + case CSSPropertyWebkitMaskAttachment: + if (val->id == CSSValueScroll || val->id == CSSValueFixed) { + currValue = CSSPrimitiveValue::createIdentifier(val->id); + m_valueList->next(); + } + break; + case CSSPropertyBackgroundImage: + case CSSPropertyWebkitMaskImage: + if (parseFillImage(currValue)) + m_valueList->next(); + break; + case CSSPropertyWebkitBackgroundClip: + case CSSPropertyWebkitBackgroundOrigin: + case CSSPropertyWebkitMaskClip: + case CSSPropertyWebkitMaskOrigin: + if (val->id == CSSValueBorder || val->id == CSSValuePadding || val->id == CSSValueContent || val->id == CSSValueText) { + currValue = CSSPrimitiveValue::createIdentifier(val->id); + m_valueList->next(); + } + break; + case CSSPropertyBackgroundPosition: + case CSSPropertyWebkitMaskPosition: + parseFillPosition(currValue, currValue2); + // unlike the other functions, parseFillPosition advances the m_valueList pointer + break; + case CSSPropertyBackgroundPositionX: + case CSSPropertyWebkitMaskPositionX: { + bool xFound = false, yFound = true; + currValue = parseFillPositionXY(xFound, yFound); + if (currValue) + m_valueList->next(); + break; + } + case CSSPropertyBackgroundPositionY: + case CSSPropertyWebkitMaskPositionY: { + bool xFound = true, yFound = false; + currValue = parseFillPositionXY(xFound, yFound); + if (currValue) + m_valueList->next(); + break; + } + case CSSPropertyWebkitBackgroundComposite: + case CSSPropertyWebkitMaskComposite: + if ((val->id >= CSSValueClear && val->id <= CSSValuePlusLighter) || val->id == CSSValueHighlight) { + currValue = CSSPrimitiveValue::createIdentifier(val->id); + m_valueList->next(); + } + break; + case CSSPropertyBackgroundRepeat: + case CSSPropertyWebkitMaskRepeat: + if (val->id >= CSSValueRepeat && val->id <= CSSValueNoRepeat) { + currValue = CSSPrimitiveValue::createIdentifier(val->id); + m_valueList->next(); + } + break; + case CSSPropertyWebkitBackgroundSize: + case CSSPropertyWebkitMaskSize: + currValue = parseFillSize(); + if (currValue) + m_valueList->next(); + break; + } + if (!currValue) + return false; + + if (value && !values) { + values = CSSValueList::createCommaSeparated(); + values->append(value.release()); + } + + if (value2 && !values2) { + values2 = CSSValueList::createCommaSeparated(); + values2->append(value2.release()); + } + + if (values) + values->append(currValue.release()); + else + value = currValue.release(); + if (currValue2) { + if (values2) + values2->append(currValue2.release()); + else + value2 = currValue2.release(); + } + allowComma = true; + } + + // When parsing any fill shorthand property, we let it handle building up the lists for all + // properties. + if (inShorthand()) + break; + } + + if (values && values->length()) { + retValue1 = values.release(); + if (values2 && values2->length()) + retValue2 = values2.release(); + return true; + } + if (value) { + retValue1 = value.release(); + retValue2 = value2.release(); + return true; + } + return false; +} + +PassRefPtr<CSSValue> CSSParser::parseAnimationDelay() +{ + CSSParserValue* value = m_valueList->current(); + if (value->id == CSSValueNow) + return CSSPrimitiveValue::createIdentifier(value->id); + if (validUnit(value, FTime, m_strict)) + return CSSPrimitiveValue::create(value->fValue, (CSSPrimitiveValue::UnitTypes)value->unit); + return 0; +} + +PassRefPtr<CSSValue> CSSParser::parseAnimationDirection() +{ + CSSParserValue* value = m_valueList->current(); + if (value->id == CSSValueNormal || value->id == CSSValueAlternate) + return CSSPrimitiveValue::createIdentifier(value->id); + return 0; +} + +PassRefPtr<CSSValue> CSSParser::parseAnimationDuration() +{ + CSSParserValue* value = m_valueList->current(); + if (validUnit(value, FTime|FNonNeg, m_strict)) + return CSSPrimitiveValue::create(value->fValue, (CSSPrimitiveValue::UnitTypes)value->unit); + return 0; +} + +PassRefPtr<CSSValue> CSSParser::parseAnimationIterationCount() +{ + CSSParserValue* value = m_valueList->current(); + if (value->id == CSSValueInfinite) + return CSSPrimitiveValue::createIdentifier(value->id); + if (validUnit(value, FInteger|FNonNeg, m_strict)) + return CSSPrimitiveValue::create(value->fValue, (CSSPrimitiveValue::UnitTypes)value->unit); + return 0; +} + +PassRefPtr<CSSValue> CSSParser::parseAnimationName() +{ + CSSParserValue* value = m_valueList->current(); + if (value->unit == CSSPrimitiveValue::CSS_STRING || value->unit == CSSPrimitiveValue::CSS_IDENT) { + if (value->id == CSSValueNone || (value->unit == CSSPrimitiveValue::CSS_STRING && equalIgnoringCase(value->string, "none"))) { + return CSSPrimitiveValue::createIdentifier(CSSValueNone); + } else { + return CSSPrimitiveValue::create(value->string, CSSPrimitiveValue::CSS_STRING); + } + } + return 0; +} + +PassRefPtr<CSSValue> CSSParser::parseAnimationPlayState() +{ + CSSParserValue* value = m_valueList->current(); + if (value->id == CSSValueRunning || value->id == CSSValuePaused) + return CSSPrimitiveValue::createIdentifier(value->id); + return 0; +} + +PassRefPtr<CSSValue> CSSParser::parseAnimationProperty() +{ + CSSParserValue* value = m_valueList->current(); + if (value->unit != CSSPrimitiveValue::CSS_IDENT) + return 0; + int result = cssPropertyID(value->string); + if (result) + return CSSPrimitiveValue::createIdentifier(result); + if (equalIgnoringCase(value->string, "all")) + return CSSPrimitiveValue::createIdentifier(cAnimateAll); // FIXME: Why not use CSSValueAll instead? + if (equalIgnoringCase(value->string, "none")) + return CSSPrimitiveValue::createIdentifier(cAnimateNone); // FIXME: Why not use CSSValueNone instead? + return 0; +} + +bool CSSParser::parseTimingFunctionValue(CSSParserValueList*& args, double& result) +{ + CSSParserValue* v = args->current(); + if (!validUnit(v, FNumber, m_strict)) + return false; + result = v->fValue; + if (result < 0 || result > 1.0) + return false; + v = args->next(); + if (!v) + // The last number in the function has no comma after it, so we're done. + return true; + if (v->unit != CSSParserValue::Operator && v->iValue != ',') + return false; + v = args->next(); + return true; +} + +PassRefPtr<CSSValue> CSSParser::parseAnimationTimingFunction() +{ + CSSParserValue* value = m_valueList->current(); + if (value->id == CSSValueEase || value->id == CSSValueLinear || value->id == CSSValueEaseIn || value->id == CSSValueEaseOut || value->id == CSSValueEaseInOut) + return CSSPrimitiveValue::createIdentifier(value->id); + + // We must be a function. + if (value->unit != CSSParserValue::Function) + return 0; + + // The only timing function we accept for now is a cubic bezier function. 4 points must be specified. + CSSParserValueList* args = value->function->args; + if (!equalIgnoringCase(value->function->name, "cubic-bezier(") || !args || args->size() != 7) + return 0; + + // There are two points specified. The values must be between 0 and 1. + double x1, y1, x2, y2; + + if (!parseTimingFunctionValue(args, x1)) + return 0; + if (!parseTimingFunctionValue(args, y1)) + return 0; + if (!parseTimingFunctionValue(args, x2)) + return 0; + if (!parseTimingFunctionValue(args, y2)) + return 0; + + return CSSTimingFunctionValue::create(x1, y1, x2, y2); +} + +bool CSSParser::parseAnimationProperty(int propId, RefPtr<CSSValue>& result) +{ + RefPtr<CSSValueList> values; + CSSParserValue* val; + RefPtr<CSSValue> value; + bool allowComma = false; + + result = 0; + + while ((val = m_valueList->current())) { + RefPtr<CSSValue> currValue; + if (allowComma) { + if (val->unit != CSSParserValue::Operator || val->iValue != ',') + return false; + m_valueList->next(); + allowComma = false; + } + else { + switch (propId) { + case CSSPropertyWebkitAnimationDelay: + case CSSPropertyWebkitTransitionDelay: + currValue = parseAnimationDelay(); + if (currValue) + m_valueList->next(); + break; + case CSSPropertyWebkitAnimationDirection: + currValue = parseAnimationDirection(); + if (currValue) + m_valueList->next(); + break; + case CSSPropertyWebkitAnimationDuration: + case CSSPropertyWebkitTransitionDuration: + currValue = parseAnimationDuration(); + if (currValue) + m_valueList->next(); + break; + case CSSPropertyWebkitAnimationIterationCount: + currValue = parseAnimationIterationCount(); + if (currValue) + m_valueList->next(); + break; + case CSSPropertyWebkitAnimationName: + currValue = parseAnimationName(); + if (currValue) + m_valueList->next(); + break; + case CSSPropertyWebkitAnimationPlayState: + currValue = parseAnimationPlayState(); + if (currValue) + m_valueList->next(); + break; + case CSSPropertyWebkitTransitionProperty: + currValue = parseAnimationProperty(); + if (currValue) + m_valueList->next(); + break; + case CSSPropertyWebkitAnimationTimingFunction: + case CSSPropertyWebkitTransitionTimingFunction: + currValue = parseAnimationTimingFunction(); + if (currValue) + m_valueList->next(); + break; + } + + if (!currValue) + return false; + + if (value && !values) { + values = CSSValueList::createCommaSeparated(); + values->append(value.release()); + } + + if (values) + values->append(currValue.release()); + else + value = currValue.release(); + + allowComma = true; + } + + // When parsing the 'transition' shorthand property, we let it handle building up the lists for all + // properties. + if (inShorthand()) + break; + } + + if (values && values->length()) { + result = values.release(); + return true; + } + if (value) { + result = value.release(); + return true; + } + return false; +} + + + +#if ENABLE(DASHBOARD_SUPPORT) + +#define DASHBOARD_REGION_NUM_PARAMETERS 6 +#define DASHBOARD_REGION_SHORT_NUM_PARAMETERS 2 + +static CSSParserValue* skipCommaInDashboardRegion (CSSParserValueList *args) +{ + if (args->size() == (DASHBOARD_REGION_NUM_PARAMETERS*2-1) || + args->size() == (DASHBOARD_REGION_SHORT_NUM_PARAMETERS*2-1)) { + CSSParserValue* current = args->current(); + if (current->unit == CSSParserValue::Operator && current->iValue == ',') + return args->next(); + } + return args->current(); +} + +bool CSSParser::parseDashboardRegions(int propId, bool important) +{ + bool valid = true; + + CSSParserValue* value = m_valueList->current(); + + if (value->id == CSSValueNone) { + if (m_valueList->next()) + return false; + addProperty(propId, CSSPrimitiveValue::createIdentifier(value->id), important); + return valid; + } + + RefPtr<DashboardRegion> firstRegion = DashboardRegion::create(); + DashboardRegion* region = 0; + + while (value) { + if (region == 0) { + region = firstRegion.get(); + } else { + RefPtr<DashboardRegion> nextRegion = DashboardRegion::create(); + region->m_next = nextRegion; + region = nextRegion.get(); + } + + if (value->unit != CSSParserValue::Function) { + valid = false; + break; + } + + // Commas count as values, so allow: + // dashboard-region(label, type, t, r, b, l) or dashboard-region(label type t r b l) + // dashboard-region(label, type, t, r, b, l) or dashboard-region(label type t r b l) + // also allow + // dashboard-region(label, type) or dashboard-region(label type) + // dashboard-region(label, type) or dashboard-region(label type) + CSSParserValueList* args = value->function->args; + if (!equalIgnoringCase(value->function->name, "dashboard-region(") || !args) { + valid = false; + break; + } + + int numArgs = args->size(); + if ((numArgs != DASHBOARD_REGION_NUM_PARAMETERS && numArgs != (DASHBOARD_REGION_NUM_PARAMETERS*2-1)) && + (numArgs != DASHBOARD_REGION_SHORT_NUM_PARAMETERS && numArgs != (DASHBOARD_REGION_SHORT_NUM_PARAMETERS*2-1))){ + valid = false; + break; + } + + // First arg is a label. + CSSParserValue* arg = args->current(); + if (arg->unit != CSSPrimitiveValue::CSS_IDENT) { + valid = false; + break; + } + + region->m_label = arg->string; + + // Second arg is a type. + arg = args->next(); + arg = skipCommaInDashboardRegion (args); + if (arg->unit != CSSPrimitiveValue::CSS_IDENT) { + valid = false; + break; + } + + if (equalIgnoringCase(arg->string, "circle")) + region->m_isCircle = true; + else if (equalIgnoringCase(arg->string, "rectangle")) + region->m_isRectangle = true; + else { + valid = false; + break; + } + + region->m_geometryType = arg->string; + + if (numArgs == DASHBOARD_REGION_SHORT_NUM_PARAMETERS || numArgs == (DASHBOARD_REGION_SHORT_NUM_PARAMETERS*2-1)) { + // This originally used CSSValueInvalid by accident. It might be more logical to use something else. + RefPtr<CSSPrimitiveValue> amount = CSSPrimitiveValue::createIdentifier(CSSValueInvalid); + + region->setTop(amount); + region->setRight(amount); + region->setBottom(amount); + region->setLeft(amount); + } else { + // Next four arguments must be offset numbers + int i; + for (i = 0; i < 4; i++) { + arg = args->next(); + arg = skipCommaInDashboardRegion (args); + + valid = arg->id == CSSValueAuto || validUnit(arg, FLength, m_strict); + if (!valid) + break; + + RefPtr<CSSPrimitiveValue> amount = arg->id == CSSValueAuto ? + CSSPrimitiveValue::createIdentifier(CSSValueAuto) : + CSSPrimitiveValue::create(arg->fValue, (CSSPrimitiveValue::UnitTypes) arg->unit); + + if (i == 0) + region->setTop(amount); + else if (i == 1) + region->setRight(amount); + else if (i == 2) + region->setBottom(amount); + else + region->setLeft(amount); + } + } + + if (args->next()) + return false; + + value = m_valueList->next(); + } + + if (valid) + addProperty(propId, CSSPrimitiveValue::create(firstRegion.release()), important); + + return valid; +} + +#endif /* ENABLE(DASHBOARD_SUPPORT) */ + +PassRefPtr<CSSValue> CSSParser::parseCounterContent(CSSParserValueList* args, bool counters) +{ + unsigned numArgs = args->size(); + if (counters && numArgs != 3 && numArgs != 5) + return 0; + if (!counters && numArgs != 1 && numArgs != 3) + return 0; + + CSSParserValue* i = args->current(); + if (i->unit != CSSPrimitiveValue::CSS_IDENT) + return 0; + RefPtr<CSSPrimitiveValue> identifier = CSSPrimitiveValue::create(i->string, CSSPrimitiveValue::CSS_STRING); + + RefPtr<CSSPrimitiveValue> separator; + if (!counters) + separator = CSSPrimitiveValue::create(String(), CSSPrimitiveValue::CSS_STRING); + else { + i = args->next(); + if (i->unit != CSSParserValue::Operator || i->iValue != ',') + return 0; + + i = args->next(); + if (i->unit != CSSPrimitiveValue::CSS_STRING) + return 0; + + separator = CSSPrimitiveValue::create(i->string, (CSSPrimitiveValue::UnitTypes) i->unit); + } + + RefPtr<CSSPrimitiveValue> listStyle; + i = args->next(); + if (!i) // Make the list style default decimal + listStyle = CSSPrimitiveValue::create(CSSValueDecimal - CSSValueDisc, CSSPrimitiveValue::CSS_NUMBER); + else { + if (i->unit != CSSParserValue::Operator || i->iValue != ',') + return 0; + + i = args->next(); + if (i->unit != CSSPrimitiveValue::CSS_IDENT) + return 0; + + short ls = 0; + if (i->id == CSSValueNone) + ls = CSSValueKatakanaIroha - CSSValueDisc + 1; + else if (i->id >= CSSValueDisc && i->id <= CSSValueKatakanaIroha) + ls = i->id - CSSValueDisc; + else + return 0; + + listStyle = CSSPrimitiveValue::create(ls, (CSSPrimitiveValue::UnitTypes) i->unit); + } + + return CSSPrimitiveValue::create(Counter::create(identifier.release(), listStyle.release(), separator.release())); +} + +bool CSSParser::parseShape(int propId, bool important) +{ + CSSParserValue* value = m_valueList->current(); + CSSParserValueList* args = value->function->args; + + if (!equalIgnoringCase(value->function->name, "rect(") || !args) + return false; + + // rect(t, r, b, l) || rect(t r b l) + if (args->size() != 4 && args->size() != 7) + return false; + RefPtr<Rect> rect = Rect::create(); + bool valid = true; + int i = 0; + CSSParserValue* a = args->current(); + while (a) { + valid = a->id == CSSValueAuto || validUnit(a, FLength, m_strict); + if (!valid) + break; + RefPtr<CSSPrimitiveValue> length = a->id == CSSValueAuto ? + CSSPrimitiveValue::createIdentifier(CSSValueAuto) : + CSSPrimitiveValue::create(a->fValue, (CSSPrimitiveValue::UnitTypes) a->unit); + if (i == 0) + rect->setTop(length); + else if (i == 1) + rect->setRight(length); + else if (i == 2) + rect->setBottom(length); + else + rect->setLeft(length); + a = args->next(); + if (a && args->size() == 7) { + if (a->unit == CSSParserValue::Operator && a->iValue == ',') { + a = args->next(); + } else { + valid = false; + break; + } + } + i++; + } + if (valid) { + addProperty(propId, CSSPrimitiveValue::create(rect.release()), important); + m_valueList->next(); + return true; + } + return false; +} + +// [ 'font-style' || 'font-variant' || 'font-weight' ]? 'font-size' [ / 'line-height' ]? 'font-family' +bool CSSParser::parseFont(bool important) +{ + bool valid = true; + CSSParserValue *value = m_valueList->current(); + RefPtr<FontValue> font = FontValue::create(); + // optional font-style, font-variant and font-weight + while (value) { + int id = value->id; + if (id) { + if (id == CSSValueNormal) { + // do nothing, it's the inital value for all three + } else if (id == CSSValueItalic || id == CSSValueOblique) { + if (font->style) + return false; + font->style = CSSPrimitiveValue::createIdentifier(id); + } else if (id == CSSValueSmallCaps) { + if (font->variant) + return false; + font->variant = CSSPrimitiveValue::createIdentifier(id); + } else if (id >= CSSValueBold && id <= CSSValueLighter) { + if (font->weight) + return false; + font->weight = CSSPrimitiveValue::createIdentifier(id); + } else { + valid = false; + } + } else if (!font->weight && validUnit(value, FInteger|FNonNeg, true)) { + int weight = (int)value->fValue; + int val = 0; + if (weight == 100) + val = CSSValue100; + else if (weight == 200) + val = CSSValue200; + else if (weight == 300) + val = CSSValue300; + else if (weight == 400) + val = CSSValue400; + else if (weight == 500) + val = CSSValue500; + else if (weight == 600) + val = CSSValue600; + else if (weight == 700) + val = CSSValue700; + else if (weight == 800) + val = CSSValue800; + else if (weight == 900) + val = CSSValue900; + + if (val) + font->weight = CSSPrimitiveValue::createIdentifier(val); + else + valid = false; + } else { + valid = false; + } + if (!valid) + break; + value = m_valueList->next(); + } + if (!value) + return false; + + // set undefined values to default + if (!font->style) + font->style = CSSPrimitiveValue::createIdentifier(CSSValueNormal); + if (!font->variant) + font->variant = CSSPrimitiveValue::createIdentifier(CSSValueNormal); + if (!font->weight) + font->weight = CSSPrimitiveValue::createIdentifier(CSSValueNormal); + + // now a font size _must_ come + // <absolute-size> | <relative-size> | <length> | <percentage> | inherit + if (value->id >= CSSValueXxSmall && value->id <= CSSValueLarger) + font->size = CSSPrimitiveValue::createIdentifier(value->id); + else if (validUnit(value, FLength|FPercent|FNonNeg, m_strict)) + font->size = CSSPrimitiveValue::create(value->fValue, (CSSPrimitiveValue::UnitTypes) value->unit); + value = m_valueList->next(); + if (!font->size || !value) + return false; + + if (value->unit == CSSParserValue::Operator && value->iValue == '/') { + // line-height + value = m_valueList->next(); + if (!value) + return false; + if (value->id == CSSValueNormal) { + // default value, nothing to do + } else if (validUnit(value, FNumber|FLength|FPercent|FNonNeg, m_strict)) + font->lineHeight = CSSPrimitiveValue::create(value->fValue, (CSSPrimitiveValue::UnitTypes) value->unit); + else + return false; + value = m_valueList->next(); + if (!value) + return false; + } + + if (!font->lineHeight) + font->lineHeight = CSSPrimitiveValue::createIdentifier(CSSValueNormal); + + // font family must come now + font->family = parseFontFamily(); + + if (m_valueList->current() || !font->family) + return false; + + addProperty(CSSPropertyFont, font.release(), important); + return true; +} + +PassRefPtr<CSSValueList> CSSParser::parseFontFamily() +{ + RefPtr<CSSValueList> list = CSSValueList::createCommaSeparated(); + CSSParserValue* value = m_valueList->current(); + + FontFamilyValue* currFamily = 0; + while (value) { + CSSParserValue* nextValue = m_valueList->next(); + bool nextValBreaksFont = !nextValue || + (nextValue->unit == CSSParserValue::Operator && nextValue->iValue == ','); + bool nextValIsFontName = nextValue && + ((nextValue->id >= CSSValueSerif && nextValue->id <= CSSValueWebkitBody) || + (nextValue->unit == CSSPrimitiveValue::CSS_STRING || nextValue->unit == CSSPrimitiveValue::CSS_IDENT)); + + if (value->id >= CSSValueSerif && value->id <= CSSValueWebkitBody) { + if (currFamily) + currFamily->appendSpaceSeparated(value->string.characters, value->string.length); + else if (nextValBreaksFont || !nextValIsFontName) + list->append(CSSPrimitiveValue::createIdentifier(value->id)); + else { + RefPtr<FontFamilyValue> newFamily = FontFamilyValue::create(value->string); + currFamily = newFamily.get(); + list->append(newFamily.release()); + } + } else if (value->unit == CSSPrimitiveValue::CSS_STRING) { + // Strings never share in a family name. + currFamily = 0; + list->append(FontFamilyValue::create(value->string)); + } else if (value->unit == CSSPrimitiveValue::CSS_IDENT) { + if (currFamily) + currFamily->appendSpaceSeparated(value->string.characters, value->string.length); + else if (nextValBreaksFont || !nextValIsFontName) + list->append(FontFamilyValue::create(value->string)); + else { + RefPtr<FontFamilyValue> newFamily = FontFamilyValue::create(value->string); + currFamily = newFamily.get(); + list->append(newFamily.release()); + } + } else { + break; + } + + if (!nextValue) + break; + + if (nextValBreaksFont) { + value = m_valueList->next(); + currFamily = 0; + } + else if (nextValIsFontName) + value = nextValue; + else + break; + } + if (!list->length()) + list = 0; + return list.release(); +} + +bool CSSParser::parseFontStyle(bool important) +{ + RefPtr<CSSValueList> values; + if (m_valueList->size() > 1) + values = CSSValueList::createCommaSeparated(); + CSSParserValue* val; + bool expectComma = false; + while ((val = m_valueList->current())) { + RefPtr<CSSPrimitiveValue> parsedValue; + if (!expectComma) { + expectComma = true; + if (val->id == CSSValueNormal || val->id == CSSValueItalic || val->id == CSSValueOblique) + parsedValue = CSSPrimitiveValue::createIdentifier(val->id); + else if (val->id == CSSValueAll && !values) { + // 'all' is only allowed in @font-face and with no other values. Make a value list to + // indicate that we are in the @font-face case. + values = CSSValueList::createCommaSeparated(); + parsedValue = CSSPrimitiveValue::createIdentifier(val->id); + } + } else if (val->unit == CSSParserValue::Operator && val->iValue == ',') { + expectComma = false; + m_valueList->next(); + continue; + } + + if (!parsedValue) + return false; + + m_valueList->next(); + + if (values) + values->append(parsedValue.release()); + else { + addProperty(CSSPropertyFontStyle, parsedValue.release(), important); + return true; + } + } + + if (values && values->length()) { + m_hasFontFaceOnlyValues = true; + addProperty(CSSPropertyFontStyle, values.release(), important); + return true; + } + + return false; +} + +bool CSSParser::parseFontVariant(bool important) +{ + RefPtr<CSSValueList> values; + if (m_valueList->size() > 1) + values = CSSValueList::createCommaSeparated(); + CSSParserValue* val; + bool expectComma = false; + while ((val = m_valueList->current())) { + RefPtr<CSSPrimitiveValue> parsedValue; + if (!expectComma) { + expectComma = true; + if (val->id == CSSValueNormal || val->id == CSSValueSmallCaps) + parsedValue = CSSPrimitiveValue::createIdentifier(val->id); + else if (val->id == CSSValueAll && !values) { + // 'all' is only allowed in @font-face and with no other values. Make a value list to + // indicate that we are in the @font-face case. + values = CSSValueList::createCommaSeparated(); + parsedValue = CSSPrimitiveValue::createIdentifier(val->id); + } + } else if (val->unit == CSSParserValue::Operator && val->iValue == ',') { + expectComma = false; + m_valueList->next(); + continue; + } + + if (!parsedValue) + return false; + + m_valueList->next(); + + if (values) + values->append(parsedValue.release()); + else { + addProperty(CSSPropertyFontVariant, parsedValue.release(), important); + return true; + } + } + + if (values && values->length()) { + m_hasFontFaceOnlyValues = true; + addProperty(CSSPropertyFontVariant, values.release(), important); + return true; + } + + return false; +} + +bool CSSParser::parseFontWeight(bool important) +{ + RefPtr<CSSValueList> values; + if (m_valueList->size() > 1) + values = CSSValueList::createCommaSeparated(); + CSSParserValue* val; + bool expectComma = false; + while ((val = m_valueList->current())) { + RefPtr<CSSPrimitiveValue> parsedValue; + if (!expectComma) { + expectComma = true; + if (val->unit == CSSPrimitiveValue::CSS_IDENT) { + if (val->id >= CSSValueNormal && val->id <= CSSValue900) + parsedValue = CSSPrimitiveValue::createIdentifier(val->id); + else if (val->id == CSSValueAll && !values) { + // 'all' is only allowed in @font-face and with no other values. Make a value list to + // indicate that we are in the @font-face case. + values = CSSValueList::createCommaSeparated(); + parsedValue = CSSPrimitiveValue::createIdentifier(val->id); + } + } else if (validUnit(val, FInteger | FNonNeg, false)) { + int weight = static_cast<int>(val->fValue); + if (!(weight % 100) && weight >= 100 && weight <= 900) + parsedValue = CSSPrimitiveValue::createIdentifier(CSSValue100 + weight / 100 - 1); + } + } else if (val->unit == CSSParserValue::Operator && val->iValue == ',') { + expectComma = false; + m_valueList->next(); + continue; + } + + if (!parsedValue) + return false; + + m_valueList->next(); + + if (values) + values->append(parsedValue.release()); + else { + addProperty(CSSPropertyFontWeight, parsedValue.release(), important); + return true; + } + } + + if (values && values->length()) { + m_hasFontFaceOnlyValues = true; + addProperty(CSSPropertyFontWeight, values.release(), important); + return true; + } + + return false; +} + +bool CSSParser::parseFontFaceSrc() +{ + RefPtr<CSSValueList> values(CSSValueList::createCommaSeparated()); + CSSParserValue* val; + bool expectComma = false; + bool allowFormat = false; + bool failed = false; + RefPtr<CSSFontFaceSrcValue> uriValue; + while ((val = m_valueList->current())) { + RefPtr<CSSFontFaceSrcValue> parsedValue; + if (val->unit == CSSPrimitiveValue::CSS_URI && !expectComma) { + String value = parseURL(val->string); + parsedValue = CSSFontFaceSrcValue::create(KURL(m_styleSheet->baseURL(), value).string()); + uriValue = parsedValue; + allowFormat = true; + expectComma = true; + } else if (val->unit == CSSParserValue::Function) { + // There are two allowed functions: local() and format(). + CSSParserValueList* args = val->function->args; + if (args && args->size() == 1) { + if (equalIgnoringCase(val->function->name, "local(") && !expectComma) { + expectComma = true; + allowFormat = false; + CSSParserValue* a = args->current(); + uriValue.clear(); + parsedValue = CSSFontFaceSrcValue::createLocal(a->string); + } else if (equalIgnoringCase(val->function->name, "format(") && allowFormat && uriValue) { + expectComma = true; + allowFormat = false; + uriValue->setFormat(args->current()->string); + uriValue.clear(); + m_valueList->next(); + continue; + } + } + } else if (val->unit == CSSParserValue::Operator && val->iValue == ',' && expectComma) { + expectComma = false; + allowFormat = false; + uriValue.clear(); + m_valueList->next(); + continue; + } + + if (parsedValue) + values->append(parsedValue.release()); + else { + failed = true; + break; + } + m_valueList->next(); + } + + if (values->length() && !failed) { + addProperty(CSSPropertySrc, values.release(), m_important); + m_valueList->next(); + return true; + } + + return false; +} + +bool CSSParser::parseFontFaceUnicodeRange() +{ + RefPtr<CSSValueList> values = CSSValueList::createCommaSeparated(); + CSSParserValue* currentValue; + bool failed = false; + while ((currentValue = m_valueList->current())) { + if (m_valueList->current()->unit != CSSPrimitiveValue::CSS_UNICODE_RANGE) { + failed = true; + break; + } + + String rangeString = m_valueList->current()->string; + UChar32 from = 0; + UChar32 to = 0; + unsigned length = rangeString.length(); + + if (length < 3) { + failed = true; + break; + } + + unsigned i = 2; + while (i < length) { + UChar c = rangeString[i]; + if (c == '-' || c == '?') + break; + from *= 16; + if (c >= '0' && c <= '9') + from += c - '0'; + else if (c >= 'A' && c <= 'F') + from += 10 + c - 'A'; + else if (c >= 'a' && c <= 'f') + from += 10 + c - 'a'; + else { + failed = true; + break; + } + i++; + } + if (failed) + break; + + if (i == length) + to = from; + else if (rangeString[i] == '?') { + unsigned span = 1; + while (i < length && rangeString[i] == '?') { + span *= 16; + from *= 16; + i++; + } + if (i < length) + failed = true; + to = from + span - 1; + } else { + if (length < i + 2) { + failed = true; + break; + } + i++; + while (i < length) { + UChar c = rangeString[i]; + to *= 16; + if (c >= '0' && c <= '9') + to += c - '0'; + else if (c >= 'A' && c <= 'F') + to += 10 + c - 'A'; + else if (c >= 'a' && c <= 'f') + to += 10 + c - 'a'; + else { + failed = true; + break; + } + i++; + } + if (failed) + break; + } + values->append(CSSUnicodeRangeValue::create(from, to)); + m_valueList->next(); + } + if (failed || !values->length()) + return false; + addProperty(CSSPropertyUnicodeRange, values.release(), m_important); + return true; +} + +bool CSSParser::parseColor(const String &name, RGBA32& rgb, bool strict) +{ + if (!strict && Color::parseHexColor(name, rgb)) + return true; + + // try a little harder + Color tc; + tc.setNamedColor(name); + if (tc.isValid()) { + rgb = tc.rgb(); + return true; + } + + return false; +} + +bool CSSParser::parseColorParameters(CSSParserValue* value, int* colorArray, bool parseAlpha) +{ + CSSParserValueList* args = value->function->args; + CSSParserValue* v = args->current(); + Units unitType = FUnknown; + // Get the first value and its type + if (validUnit(v, FInteger, true)) + unitType = FInteger; + else if (validUnit(v, FPercent, true)) + unitType = FPercent; + else + return false; + colorArray[0] = static_cast<int>(v->fValue * (v->unit == CSSPrimitiveValue::CSS_PERCENTAGE ? 256.0 / 100.0 : 1.0)); + for (int i = 1; i < 3; i++) { + v = args->next(); + if (v->unit != CSSParserValue::Operator && v->iValue != ',') + return false; + v = args->next(); + if (!validUnit(v, unitType, true)) + return false; + colorArray[i] = static_cast<int>(v->fValue * (v->unit == CSSPrimitiveValue::CSS_PERCENTAGE ? 256.0 / 100.0 : 1.0)); + } + if (parseAlpha) { + v = args->next(); + if (v->unit != CSSParserValue::Operator && v->iValue != ',') + return false; + v = args->next(); + if (!validUnit(v, FNumber, true)) + return false; + colorArray[3] = static_cast<int>(max(0.0, min(1.0, v->fValue)) * 255); + } + return true; +} + +// The CSS3 specification defines the format of a HSL color as +// hsl(<number>, <percent>, <percent>) +// and with alpha, the format is +// hsla(<number>, <percent>, <percent>, <number>) +// The first value, HUE, is in an angle with a value between 0 and 360 +bool CSSParser::parseHSLParameters(CSSParserValue* value, double* colorArray, bool parseAlpha) +{ + CSSParserValueList* args = value->function->args; + CSSParserValue* v = args->current(); + // Get the first value + if (!validUnit(v, FNumber, true)) + return false; + // normalize the Hue value and change it to be between 0 and 1.0 + colorArray[0] = (((static_cast<int>(v->fValue) % 360) + 360) % 360) / 360.0; + for (int i = 1; i < 3; i++) { + v = args->next(); + if (v->unit != CSSParserValue::Operator && v->iValue != ',') + return false; + v = args->next(); + if (!validUnit(v, FPercent, true)) + return false; + colorArray[i] = max(0.0, min(100.0, v->fValue)) / 100.0; // needs to be value between 0 and 1.0 + } + if (parseAlpha) { + v = args->next(); + if (v->unit != CSSParserValue::Operator && v->iValue != ',') + return false; + v = args->next(); + if (!validUnit(v, FNumber, true)) + return false; + colorArray[3] = max(0.0, min(1.0, v->fValue)); + } + return true; +} + +PassRefPtr<CSSPrimitiveValue> CSSParser::parseColor(CSSParserValue* value) +{ + RGBA32 c = Color::transparent; + if (!parseColorFromValue(value ? value : m_valueList->current(), c)) + return 0; + return CSSPrimitiveValue::createColor(c); +} + +bool CSSParser::parseColorFromValue(CSSParserValue* value, RGBA32& c, bool svg) +{ + if (!m_strict && value->unit == CSSPrimitiveValue::CSS_NUMBER && + value->fValue >= 0. && value->fValue < 1000000.) { + String str = String::format("%06d", (int)(value->fValue+.5)); + if (!CSSParser::parseColor(str, c, m_strict)) + return false; + } else if (value->unit == CSSPrimitiveValue::CSS_PARSER_HEXCOLOR || + value->unit == CSSPrimitiveValue::CSS_IDENT || + (!m_strict && value->unit == CSSPrimitiveValue::CSS_DIMENSION)) { + if (!CSSParser::parseColor(value->string, c, m_strict && value->unit == CSSPrimitiveValue::CSS_IDENT)) + return false; + } else if (value->unit == CSSParserValue::Function && + value->function->args != 0 && + value->function->args->size() == 5 /* rgb + two commas */ && + equalIgnoringCase(value->function->name, "rgb(")) { + int colorValues[3]; + if (!parseColorParameters(value, colorValues, false)) + return false; + c = makeRGB(colorValues[0], colorValues[1], colorValues[2]); + } else if (!svg) { + if (value->unit == CSSParserValue::Function && + value->function->args != 0 && + value->function->args->size() == 7 /* rgba + three commas */ && + equalIgnoringCase(value->function->name, "rgba(")) { + int colorValues[4]; + if (!parseColorParameters(value, colorValues, true)) + return false; + c = makeRGBA(colorValues[0], colorValues[1], colorValues[2], colorValues[3]); + } else if (value->unit == CSSParserValue::Function && + value->function->args != 0 && + value->function->args->size() == 5 /* hsl + two commas */ && + equalIgnoringCase(value->function->name, "hsl(")) { + double colorValues[3]; + if (!parseHSLParameters(value, colorValues, false)) + return false; + c = makeRGBAFromHSLA(colorValues[0], colorValues[1], colorValues[2], 1.0); + } else if (value->unit == CSSParserValue::Function && + value->function->args != 0 && + value->function->args->size() == 7 /* hsla + three commas */ && + equalIgnoringCase(value->function->name, "hsla(")) { + double colorValues[4]; + if (!parseHSLParameters(value, colorValues, true)) + return false; + c = makeRGBAFromHSLA(colorValues[0], colorValues[1], colorValues[2], colorValues[3]); + } else + return false; + } else + return false; + + return true; +} + +// This class tracks parsing state for shadow values. If it goes out of scope (e.g., due to an early return) +// without the allowBreak bit being set, then it will clean up all of the objects and destroy them. +struct ShadowParseContext { + ShadowParseContext() + : allowX(true) + , allowY(false) + , allowBlur(false) + , allowColor(true) + , allowBreak(true) + {} + + bool allowLength() { return allowX || allowY || allowBlur; } + + void commitValue() { + // Handle the ,, case gracefully by doing nothing. + if (x || y || blur || color) { + if (!values) + values = CSSValueList::createCommaSeparated(); + + // Construct the current shadow value and add it to the list. + values->append(ShadowValue::create(x.release(), y.release(), blur.release(), color.release())); + } + + // Now reset for the next shadow value. + x = y = blur = color = 0; + allowX = allowColor = allowBreak = true; + allowY = allowBlur = false; + } + + void commitLength(CSSParserValue* v) { + RefPtr<CSSPrimitiveValue> val = CSSPrimitiveValue::create(v->fValue, (CSSPrimitiveValue::UnitTypes)v->unit); + + if (allowX) { + x = val.release(); + allowX = false; allowY = true; allowColor = false; allowBreak = false; + } + else if (allowY) { + y = val.release(); + allowY = false; allowBlur = true; allowColor = true; allowBreak = true; + } + else if (allowBlur) { + blur = val.release(); + allowBlur = false; + } + } + + void commitColor(PassRefPtr<CSSPrimitiveValue> val) { + color = val; + allowColor = false; + if (allowX) + allowBreak = false; + else + allowBlur = false; + } + + RefPtr<CSSValueList> values; + RefPtr<CSSPrimitiveValue> x; + RefPtr<CSSPrimitiveValue> y; + RefPtr<CSSPrimitiveValue> blur; + RefPtr<CSSPrimitiveValue> color; + + bool allowX; + bool allowY; + bool allowBlur; + bool allowColor; + bool allowBreak; +}; + +bool CSSParser::parseShadow(int propId, bool important) +{ + ShadowParseContext context; + CSSParserValue* val; + while ((val = m_valueList->current())) { + // Check for a comma break first. + if (val->unit == CSSParserValue::Operator) { + if (val->iValue != ',' || !context.allowBreak) + // Other operators aren't legal or we aren't done with the current shadow + // value. Treat as invalid. + return false; + + // The value is good. Commit it. + context.commitValue(); + } + // Check to see if we're a length. + else if (validUnit(val, FLength, true)) { + // We required a length and didn't get one. Invalid. + if (!context.allowLength()) + return false; + + // A length is allowed here. Construct the value and add it. + context.commitLength(val); + } + else { + // The only other type of value that's ok is a color value. + RefPtr<CSSPrimitiveValue> parsedColor; + bool isColor = (val->id >= CSSValueAqua && val->id <= CSSValueWindowtext || val->id == CSSValueMenu || + (val->id >= CSSValueWebkitFocusRingColor && val->id <= CSSValueWebkitText && !m_strict)); + if (isColor) { + if (!context.allowColor) + return false; + parsedColor = CSSPrimitiveValue::createIdentifier(val->id); + } + + if (!parsedColor) + // It's not built-in. Try to parse it as a color. + parsedColor = parseColor(val); + + if (!parsedColor || !context.allowColor) + return false; // This value is not a color or length and is invalid or + // it is a color, but a color isn't allowed at this point. + + context.commitColor(parsedColor.release()); + } + + m_valueList->next(); + } + + if (context.allowBreak) { + context.commitValue(); + if (context.values->length()) { + addProperty(propId, context.values.release(), important); + m_valueList->next(); + return true; + } + } + + return false; +} + +bool CSSParser::parseReflect(int propId, bool important) +{ + // box-reflect: <direction> <offset> <mask> + + // Direction comes first. + CSSParserValue* val = m_valueList->current(); + CSSReflectionDirection direction; + switch (val->id) { + case CSSValueAbove: + direction = ReflectionAbove; + break; + case CSSValueBelow: + direction = ReflectionBelow; + break; + case CSSValueLeft: + direction = ReflectionLeft; + break; + case CSSValueRight: + direction = ReflectionRight; + break; + default: + return false; + } + + // The offset comes next. + val = m_valueList->next(); + RefPtr<CSSPrimitiveValue> offset; + if (!val) + offset = CSSPrimitiveValue::create(0, CSSPrimitiveValue::CSS_PX); + else { + if (!validUnit(val, FLength | FPercent, m_strict)) + return false; + offset = CSSPrimitiveValue::create(val->fValue, static_cast<CSSPrimitiveValue::UnitTypes>(val->unit)); + } + + // Now for the mask. + RefPtr<CSSValue> mask; + val = m_valueList->next(); + if (val) { + if (!parseBorderImage(propId, important, mask)) + return false; + } + + RefPtr<CSSReflectValue> reflectValue = CSSReflectValue::create(direction, offset.release(), mask.release()); + addProperty(propId, reflectValue.release(), important); + m_valueList->next(); + return true; +} + +struct BorderImageParseContext +{ + BorderImageParseContext() + : m_allowBreak(false) + , m_allowNumber(false) + , m_allowSlash(false) + , m_allowWidth(false) + , m_allowRule(false) + , m_borderTop(0) + , m_borderRight(0) + , m_borderBottom(0) + , m_borderLeft(0) + , m_horizontalRule(0) + , m_verticalRule(0) + {} + + bool allowBreak() const { return m_allowBreak; } + bool allowNumber() const { return m_allowNumber; } + bool allowSlash() const { return m_allowSlash; } + bool allowWidth() const { return m_allowWidth; } + bool allowRule() const { return m_allowRule; } + + void commitImage(PassRefPtr<CSSValue> image) { m_image = image; m_allowNumber = true; } + void commitNumber(CSSParserValue* v) { + PassRefPtr<CSSPrimitiveValue> val = CSSPrimitiveValue::create(v->fValue, (CSSPrimitiveValue::UnitTypes)v->unit); + if (!m_top) + m_top = val; + else if (!m_right) + m_right = val; + else if (!m_bottom) + m_bottom = val; + else { + ASSERT(!m_left); + m_left = val; + } + + m_allowBreak = m_allowSlash = m_allowRule = true; + m_allowNumber = !m_left; + } + void commitSlash() { m_allowBreak = m_allowSlash = m_allowNumber = false; m_allowWidth = true; } + void commitWidth(CSSParserValue* val) { + if (!m_borderTop) + m_borderTop = val; + else if (!m_borderRight) + m_borderRight = val; + else if (!m_borderBottom) + m_borderBottom = val; + else { + ASSERT(!m_borderLeft); + m_borderLeft = val; + } + + m_allowBreak = m_allowRule = true; + m_allowWidth = !m_borderLeft; + } + void commitRule(int keyword) { + if (!m_horizontalRule) + m_horizontalRule = keyword; + else if (!m_verticalRule) + m_verticalRule = keyword; + m_allowRule = !m_verticalRule; + } + PassRefPtr<CSSValue> commitBorderImage(CSSParser* p, bool important) { + // We need to clone and repeat values for any omissions. + if (!m_right) { + m_right = CSSPrimitiveValue::create(m_top->getDoubleValue(), (CSSPrimitiveValue::UnitTypes)m_top->primitiveType()); + m_bottom = CSSPrimitiveValue::create(m_top->getDoubleValue(), (CSSPrimitiveValue::UnitTypes)m_top->primitiveType()); + m_left = CSSPrimitiveValue::create(m_top->getDoubleValue(), (CSSPrimitiveValue::UnitTypes)m_top->primitiveType()); + } + if (!m_bottom) { + m_bottom = CSSPrimitiveValue::create(m_top->getDoubleValue(), (CSSPrimitiveValue::UnitTypes)m_top->primitiveType()); + m_left = CSSPrimitiveValue::create(m_right->getDoubleValue(), (CSSPrimitiveValue::UnitTypes)m_right->primitiveType()); + } + if (!m_left) + m_left = CSSPrimitiveValue::create(m_right->getDoubleValue(), (CSSPrimitiveValue::UnitTypes)m_right->primitiveType()); + + // Now build a rect value to hold all four of our primitive values. + RefPtr<Rect> rect = Rect::create(); + rect->setTop(m_top); + rect->setRight(m_right); + rect->setBottom(m_bottom); + rect->setLeft(m_left); + + // Fill in STRETCH as the default if it wasn't specified. + if (!m_horizontalRule) + m_horizontalRule = CSSValueStretch; + + // The vertical rule should match the horizontal rule if unspecified. + if (!m_verticalRule) + m_verticalRule = m_horizontalRule; + + // Now we have to deal with the border widths. The best way to deal with these is to actually put these values into a value + // list and then make our parsing machinery do the parsing. + if (m_borderTop) { + CSSParserValueList newList; + newList.addValue(*m_borderTop); + if (m_borderRight) + newList.addValue(*m_borderRight); + if (m_borderBottom) + newList.addValue(*m_borderBottom); + if (m_borderLeft) + newList.addValue(*m_borderLeft); + CSSParserValueList* oldList = p->m_valueList; + p->m_valueList = &newList; + p->parseValue(CSSPropertyBorderWidth, important); + p->m_valueList = oldList; + } + + // Make our new border image value now. + return CSSBorderImageValue::create(m_image, rect.release(), m_horizontalRule, m_verticalRule); + } + + bool m_allowBreak; + bool m_allowNumber; + bool m_allowSlash; + bool m_allowWidth; + bool m_allowRule; + + RefPtr<CSSValue> m_image; + + RefPtr<CSSPrimitiveValue> m_top; + RefPtr<CSSPrimitiveValue> m_right; + RefPtr<CSSPrimitiveValue> m_bottom; + RefPtr<CSSPrimitiveValue> m_left; + + CSSParserValue* m_borderTop; + CSSParserValue* m_borderRight; + CSSParserValue* m_borderBottom; + CSSParserValue* m_borderLeft; + + int m_horizontalRule; + int m_verticalRule; +}; + +bool CSSParser::parseBorderImage(int propId, bool important, RefPtr<CSSValue>& result) +{ + // Look for an image initially. If the first value is not a URI, then we're done. + BorderImageParseContext context; + CSSParserValue* val = m_valueList->current(); + if (val->unit == CSSPrimitiveValue::CSS_URI) { + String uri = parseURL(val->string); + if (uri.isNull()) + return false; + context.commitImage(CSSImageValue::create(KURL(m_styleSheet->baseURL(), uri).string())); + } else if (val->unit == CSSParserValue::Function) { + RefPtr<CSSValue> value; + if ((equalIgnoringCase(val->function->name, "-webkit-gradient(") && parseGradient(value)) || + (equalIgnoringCase(val->function->name, "-webkit-canvas(") && parseCanvas(value))) + context.commitImage(value); + else + return false; + } else + return false; + + while ((val = m_valueList->next())) { + if (context.allowNumber() && validUnit(val, FInteger|FNonNeg|FPercent, true)) { + context.commitNumber(val); + } else if (propId == CSSPropertyWebkitBorderImage && context.allowSlash() && val->unit == CSSParserValue::Operator && val->iValue == '/') { + context.commitSlash(); + } else if (context.allowWidth() && + (val->id == CSSValueThin || val->id == CSSValueMedium || val->id == CSSValueThick || validUnit(val, FLength, m_strict))) { + context.commitWidth(val); + } else if (context.allowRule() && + (val->id == CSSValueStretch || val->id == CSSValueRound || val->id == CSSValueRepeat)) { + context.commitRule(val->id); + } else { + // Something invalid was encountered. + return false; + } + } + + if (context.allowNumber() && propId != CSSPropertyWebkitBorderImage) { + // Allow the slices to be omitted for images that don't fit to a border. We just set the slices to be 0. + context.m_top = CSSPrimitiveValue::create(0, CSSPrimitiveValue::CSS_NUMBER); + context.m_allowBreak = true; + } + + if (context.allowBreak()) { + // Need to fully commit as a single value. + result = context.commitBorderImage(this, important); + return true; + } + + return false; +} + +bool CSSParser::parseCounter(int propId, int defaultValue, bool important) +{ + enum { ID, VAL } state = ID; + + RefPtr<CSSValueList> list = CSSValueList::createCommaSeparated(); + RefPtr<CSSPrimitiveValue> counterName; + + while (true) { + CSSParserValue* val = m_valueList->current(); + switch (state) { + case ID: + if (val && val->unit == CSSPrimitiveValue::CSS_IDENT) { + counterName = CSSPrimitiveValue::create(val->string, CSSPrimitiveValue::CSS_STRING); + state = VAL; + m_valueList->next(); + continue; + } + break; + case VAL: { + int i = defaultValue; + if (val && val->unit == CSSPrimitiveValue::CSS_NUMBER) { + i = (int)val->fValue; + m_valueList->next(); + } + + list->append(CSSPrimitiveValue::create(Pair::create(counterName.release(), + CSSPrimitiveValue::create(i, CSSPrimitiveValue::CSS_NUMBER)))); + state = ID; + continue; + } + } + break; + } + + if (list->length() > 0) { + addProperty(propId, list.release(), important); + return true; + } + + return false; +} + +static PassRefPtr<CSSPrimitiveValue> parseGradientPoint(CSSParserValue* a, bool horizontal) +{ + RefPtr<CSSPrimitiveValue> result; + if (a->unit == CSSPrimitiveValue::CSS_IDENT) { + if ((equalIgnoringCase(a->string, "left") && horizontal) || + (equalIgnoringCase(a->string, "top") && !horizontal)) + result = CSSPrimitiveValue::create(0., CSSPrimitiveValue::CSS_PERCENTAGE); + else if ((equalIgnoringCase(a->string, "right") && horizontal) || + (equalIgnoringCase(a->string, "bottom") && !horizontal)) + result = CSSPrimitiveValue::create(100., CSSPrimitiveValue::CSS_PERCENTAGE); + else if (equalIgnoringCase(a->string, "center")) + result = CSSPrimitiveValue::create(50., CSSPrimitiveValue::CSS_PERCENTAGE); + } else if (a->unit == CSSPrimitiveValue::CSS_NUMBER || a->unit == CSSPrimitiveValue::CSS_PERCENTAGE) + result = CSSPrimitiveValue::create(a->fValue, (CSSPrimitiveValue::UnitTypes)a->unit); + return result; +} + +bool parseGradientColorStop(CSSParser* p, CSSParserValue* a, CSSGradientColorStop& stop) +{ + if (a->unit != CSSParserValue::Function) + return false; + + if (!equalIgnoringCase(a->function->name, "from(") && + !equalIgnoringCase(a->function->name, "to(") && + !equalIgnoringCase(a->function->name, "color-stop(")) + return false; + + CSSParserValueList* args = a->function->args; + if (!args) + return false; + + if (equalIgnoringCase(a->function->name, "from(") || + equalIgnoringCase(a->function->name, "to(")) { + // The "from" and "to" stops expect 1 argument. + if (args->size() != 1) + return false; + + if (equalIgnoringCase(a->function->name, "from(")) + stop.m_stop = 0.f; + else + stop.m_stop = 1.f; + + int id = args->current()->id; + if (id == CSSValueWebkitText || (id >= CSSValueAqua && id <= CSSValueWindowtext) || id == CSSValueMenu) + stop.m_color = CSSPrimitiveValue::createIdentifier(id); + else + stop.m_color = p->parseColor(args->current()); + if (!stop.m_color) + return false; + } + + // The "color-stop" function expects 3 arguments. + if (equalIgnoringCase(a->function->name, "color-stop(")) { + if (args->size() != 3) + return false; + + CSSParserValue* stopArg = args->current(); + if (stopArg->unit == CSSPrimitiveValue::CSS_PERCENTAGE) + stop.m_stop = (float)stopArg->fValue / 100.f; + else if (stopArg->unit == CSSPrimitiveValue::CSS_NUMBER) + stop.m_stop = (float)stopArg->fValue; + else + return false; + + stopArg = args->next(); + if (stopArg->unit != CSSParserValue::Operator || stopArg->iValue != ',') + return false; + + stopArg = args->next(); + int id = stopArg->id; + if (id == CSSValueWebkitText || (id >= CSSValueAqua && id <= CSSValueWindowtext) || id == CSSValueMenu) + stop.m_color = CSSPrimitiveValue::createIdentifier(id); + else + stop.m_color = p->parseColor(stopArg); + if (!stop.m_color) + return false; + } + + return true; +} + +bool CSSParser::parseGradient(RefPtr<CSSValue>& gradient) +{ + RefPtr<CSSGradientValue> result = CSSGradientValue::create(); + + // Walk the arguments. + CSSParserValueList* args = m_valueList->current()->function->args; + if (!args || args->size() == 0) + return false; + + // The first argument is the gradient type. It is an identifier. + CSSParserValue* a = args->current(); + if (!a || a->unit != CSSPrimitiveValue::CSS_IDENT) + return false; + if (equalIgnoringCase(a->string, "linear")) + result->setType(CSSLinearGradient); + else if (equalIgnoringCase(a->string, "radial")) + result->setType(CSSRadialGradient); + else + return false; + + // Comma. + a = args->next(); + if (!a || a->unit != CSSParserValue::Operator || a->iValue != ',') + return false; + + // Next comes the starting point for the gradient as an x y pair. There is no + // comma between the x and the y values. + // First X. It can be left, right, number or percent. + a = args->next(); + if (!a) + return false; + RefPtr<CSSPrimitiveValue> point = parseGradientPoint(a, true); + if (!point) + return false; + result->setFirstX(point.release()); + + // First Y. It can be top, bottom, number or percent. + a = args->next(); + if (!a) + return false; + point = parseGradientPoint(a, false); + if (!point) + return false; + result->setFirstY(point.release()); + + // Comma after the first point. + a = args->next(); + if (!a || a->unit != CSSParserValue::Operator || a->iValue != ',') + return false; + + // For radial gradients only, we now expect a numeric radius. + if (result->type() == CSSRadialGradient) { + a = args->next(); + if (!a || a->unit != CSSPrimitiveValue::CSS_NUMBER) + return false; + result->setFirstRadius(CSSPrimitiveValue::create(a->fValue, CSSPrimitiveValue::CSS_NUMBER)); + + // Comma after the first radius. + a = args->next(); + if (!a || a->unit != CSSParserValue::Operator || a->iValue != ',') + return false; + } + + // Next is the ending point for the gradient as an x, y pair. + // Second X. It can be left, right, number or percent. + a = args->next(); + if (!a) + return false; + point = parseGradientPoint(a, true); + if (!point) + return false; + result->setSecondX(point.release()); + + // Second Y. It can be top, bottom, number or percent. + a = args->next(); + if (!a) + return false; + point = parseGradientPoint(a, false); + if (!point) + return false; + result->setSecondY(point.release()); + + // For radial gradients only, we now expect the second radius. + if (result->type() == CSSRadialGradient) { + // Comma after the second point. + a = args->next(); + if (!a || a->unit != CSSParserValue::Operator || a->iValue != ',') + return false; + + a = args->next(); + if (!a || a->unit != CSSPrimitiveValue::CSS_NUMBER) + return false; + result->setSecondRadius(CSSPrimitiveValue::create(a->fValue, CSSPrimitiveValue::CSS_NUMBER)); + } + + // We now will accept any number of stops (0 or more). + a = args->next(); + while (a) { + // Look for the comma before the next stop. + if (a->unit != CSSParserValue::Operator || a->iValue != ',') + return false; + + // Now examine the stop itself. + a = args->next(); + if (!a) + return false; + + // The function name needs to be one of "from", "to", or "color-stop." + CSSGradientColorStop stop; + if (!parseGradientColorStop(this, a, stop)) + return false; + result->addStop(stop); + + // Advance + a = args->next(); + } + + gradient = result.release(); + return true; +} + +bool CSSParser::parseCanvas(RefPtr<CSSValue>& canvas) +{ + RefPtr<CSSCanvasValue> result = CSSCanvasValue::create(); + + // Walk the arguments. + CSSParserValueList* args = m_valueList->current()->function->args; + if (!args || args->size() != 1) + return false; + + // The first argument is the canvas name. It is an identifier. + CSSParserValue* a = args->current(); + if (!a || a->unit != CSSPrimitiveValue::CSS_IDENT) + return false; + result->setName(a->string); + canvas = result; + return true; +} + +class TransformOperationInfo { +public: + TransformOperationInfo(const CSSParserString& name) + : m_type(WebKitCSSTransformValue::UnknownTransformOperation) + , m_argCount(1) + , m_allowSingleArgument(false) + , m_unit(CSSParser::FUnknown) + { + if (equalIgnoringCase(name, "scale(") || equalIgnoringCase(name, "scalex(") || equalIgnoringCase(name, "scaley(")) { + m_unit = CSSParser::FNumber; + if (equalIgnoringCase(name, "scale(")) + m_type = WebKitCSSTransformValue::ScaleTransformOperation; + else if (equalIgnoringCase(name, "scalex(")) + m_type = WebKitCSSTransformValue::ScaleXTransformOperation; + else + m_type = WebKitCSSTransformValue::ScaleYTransformOperation; + } else if (equalIgnoringCase(name, "rotate(")) { + m_type = WebKitCSSTransformValue::RotateTransformOperation; + m_unit = CSSParser::FAngle; + } else if (equalIgnoringCase(name, "skew(") || equalIgnoringCase(name, "skewx(") || equalIgnoringCase(name, "skewy(")) { + m_unit = CSSParser::FAngle; + if (equalIgnoringCase(name, "skew(")) + m_type = WebKitCSSTransformValue::SkewTransformOperation; + else if (equalIgnoringCase(name, "skewx(")) + m_type = WebKitCSSTransformValue::SkewXTransformOperation; + else + m_type = WebKitCSSTransformValue::SkewYTransformOperation; + } else if (equalIgnoringCase(name, "translate(") || equalIgnoringCase(name, "translatex(") || equalIgnoringCase(name, "translatey(")) { + m_unit = CSSParser::FLength | CSSParser::FPercent; + if (equalIgnoringCase(name, "translate(")) + m_type = WebKitCSSTransformValue::TranslateTransformOperation; + else if (equalIgnoringCase(name, "translatex(")) + m_type = WebKitCSSTransformValue::TranslateXTransformOperation; + else + m_type = WebKitCSSTransformValue::TranslateYTransformOperation; + } else if (equalIgnoringCase(name, "matrix(")) { + m_type = WebKitCSSTransformValue::MatrixTransformOperation; + m_argCount = 11; + m_unit = CSSParser::FNumber; + } + + if (equalIgnoringCase(name, "scale(") || equalIgnoringCase(name, "skew(") || equalIgnoringCase(name, "translate(")) { + m_allowSingleArgument = true; + m_argCount = 3; + } + } + + WebKitCSSTransformValue::TransformOperationType type() const { return m_type; } + unsigned argCount() const { return m_argCount; } + CSSParser::Units unit() const { return m_unit; } + + bool unknown() const { return m_type == WebKitCSSTransformValue::UnknownTransformOperation; } + bool hasCorrectArgCount(unsigned argCount) { return m_argCount == argCount || (m_allowSingleArgument && argCount == 1); } + +private: + WebKitCSSTransformValue::TransformOperationType m_type; + unsigned m_argCount; + bool m_allowSingleArgument; + CSSParser::Units m_unit; +}; + +PassRefPtr<CSSValueList> CSSParser::parseTransform() +{ + if (!m_valueList) + return 0; + + // The transform is a list of functional primitives that specify transform operations. + // We collect a list of WebKitCSSTransformValues, where each value specifies a single operation. + RefPtr<CSSValueList> list = CSSValueList::createSpaceSeparated(); + for (CSSParserValue* value = m_valueList->current(); value; value = m_valueList->next()) { + if (value->unit != CSSParserValue::Function || !value->function) + return 0; + + // Every primitive requires at least one argument. + CSSParserValueList* args = value->function->args; + if (!args) + return 0; + + // See if the specified primitive is one we understand. + TransformOperationInfo info(value->function->name); + if (info.unknown()) + return 0; + + if (!info.hasCorrectArgCount(args->size())) + return 0; + + // Create the new WebKitCSSTransformValue for this operation and add it to our list. + RefPtr<WebKitCSSTransformValue> transformValue = WebKitCSSTransformValue::create(info.type()); + list->append(transformValue); + + // Snag our values. + CSSParserValue* a = args->current(); + unsigned argNumber = 0; + while (a) { + CSSParser::Units unit = info.unit(); + + if (!validUnit(a, unit, true)) + return 0; + + // Add the value to the current transform operation. + transformValue->append(CSSPrimitiveValue::create(a->fValue, (CSSPrimitiveValue::UnitTypes) a->unit)); + + a = args->next(); + if (!a) + break; + if (a->unit != CSSParserValue::Operator || a->iValue != ',') + return 0; + a = args->next(); + + argNumber++; + } + } + + return list.release(); +} + +bool CSSParser::parseTransformOrigin(int propId, int& propId1, int& propId2, RefPtr<CSSValue>& value, RefPtr<CSSValue>& value2) +{ + propId1 = propId; + propId2 = propId; + if (propId == CSSPropertyWebkitTransformOrigin) { + propId1 = CSSPropertyWebkitTransformOriginX; + propId2 = CSSPropertyWebkitTransformOriginY; + } + + switch (propId) { + case CSSPropertyWebkitTransformOrigin: + parseFillPosition(value, value2); + // Unlike the other functions, parseFillPosition advances the m_valueList pointer + break; + case CSSPropertyWebkitTransformOriginX: { + bool xFound = false, yFound = true; + value = parseFillPositionXY(xFound, yFound); + if (value) + m_valueList->next(); + break; + } + case CSSPropertyWebkitTransformOriginY: { + bool xFound = true, yFound = false; + value = parseFillPositionXY(xFound, yFound); + if (value) + m_valueList->next(); + break; + } + } + + return value; +} + +#ifdef CSS_DEBUG + +static inline int yyerror(const char *str) +{ + kdDebug(6080) << "CSS parse error " << str << endl; + return 1; +} + +#else + +static inline int yyerror(const char*) { return 1; } + +#endif + +#define END_TOKEN 0 + +#include "CSSGrammar.h" + +int CSSParser::lex(void* yylvalWithoutType) +{ + YYSTYPE* yylval = static_cast<YYSTYPE*>(yylvalWithoutType); + int token = lex(); + int length; + UChar* t = text(&length); + + switch(token) { + case WHITESPACE: + case SGML_CD: + case INCLUDES: + case DASHMATCH: + break; + + case URI: + case STRING: + case IDENT: + case NTH: + case HEX: + case IDSEL: + case DIMEN: + case UNICODERANGE: + case FUNCTION: + case NOTFUNCTION: + case VARCALL: + yylval->string.characters = t; + yylval->string.length = length; + break; + + case IMPORT_SYM: + case PAGE_SYM: + case MEDIA_SYM: + case FONT_FACE_SYM: + case CHARSET_SYM: + case NAMESPACE_SYM: + case WEBKIT_KEYFRAMES_SYM: + + case IMPORTANT_SYM: + break; + + case QEMS: + length--; + case GRADS: + length--; + case DEGS: + case RADS: + case KHERZ: + length--; + case MSECS: + case HERZ: + case EMS: + case EXS: + case PXS: + case CMS: + case MMS: + case INS: + case PTS: + case PCS: + length--; + case SECS: + case PERCENTAGE: + length--; + case FLOATTOKEN: + case INTEGER: + yylval->number = charactersToDouble(t, length); + break; + + default: + break; + } + + return token; +} + +static inline int toHex(char c) +{ + if ('0' <= c && c <= '9') + return c - '0'; + if ('a' <= c && c <= 'f') + return c - 'a' + 10; + if ('A' <= c && c<= 'F') + return c - 'A' + 10; + return 0; +} + +UChar* CSSParser::text(int *length) +{ + UChar* start = yytext; + int l = yyleng; + switch(yyTok) { + case STRING: + l--; + /* nobreak */ + case HEX: + case IDSEL: + start++; + l--; + break; + case URI: + // "url("{w}{string}{w}")" + // "url("{w}{url}{w}")" + + // strip "url(" and ")" + start += 4; + l -= 5; + // strip {w} + while (l && + (*start == ' ' || *start == '\t' || *start == '\r' || + *start == '\n' || *start == '\f')) { + start++; l--; + } + if (*start == '"' || *start == '\'') { + start++; l--; + } + while (l && + (start[l-1] == ' ' || start[l-1] == '\t' || start[l-1] == '\r' || + start[l-1] == '\n' || start[l-1] == '\f')) { + l--; + } + if (l && (start[l-1] == '\"' || start[l-1] == '\'')) + l--; + + break; + case VARCALL: + // "-webkit-var("{w}{ident}{w}")" + // strip "-webkit-var(" and ")" + start += 12; + l -= 13; + // strip {w} + while (l && + (*start == ' ' || *start == '\t' || *start == '\r' || + *start == '\n' || *start == '\f')) { + start++; l--; + } + while (l && + (start[l-1] == ' ' || start[l-1] == '\t' || start[l-1] == '\r' || + start[l-1] == '\n' || start[l-1] == '\f')) { + l--; + } + default: + break; + } + + // process escapes + UChar* out = start; + UChar* escape = 0; + + for (int i = 0; i < l; i++) { + UChar* current = start + i; + if (escape == current - 1) { + if ((*current >= '0' && *current <= '9') || + (*current >= 'a' && *current <= 'f') || + (*current >= 'A' && *current <= 'F')) + continue; + if (yyTok == STRING && + (*current == '\n' || *current == '\r' || *current == '\f')) { + // ### handle \r\n case + if (*current != '\r') + escape = 0; + continue; + } + // in all other cases copy the char to output + // ### + *out++ = *current; + escape = 0; + continue; + } + if (escape == current - 2 && yyTok == STRING && + *(current-1) == '\r' && *current == '\n') { + escape = 0; + continue; + } + if (escape > current - 7 && + ((*current >= '0' && *current <= '9') || + (*current >= 'a' && *current <= 'f') || + (*current >= 'A' && *current <= 'F'))) + continue; + if (escape) { + // add escaped char + unsigned uc = 0; + escape++; + while (escape < current) { + uc *= 16; + uc += toHex(*escape); + escape++; + } + // can't handle chars outside ucs2 + if (uc > 0xffff) + uc = 0xfffd; + *out++ = uc; + escape = 0; + if (*current == ' ' || + *current == '\t' || + *current == '\r' || + *current == '\n' || + *current == '\f') + continue; + } + if (!escape && *current == '\\') { + escape = current; + continue; + } + *out++ = *current; + } + if (escape) { + // add escaped char + unsigned uc = 0; + escape++; + while (escape < start+l) { + uc *= 16; + uc += toHex(*escape); + escape++; + } + // can't handle chars outside ucs2 + if (uc > 0xffff) + uc = 0xfffd; + *out++ = uc; + } + + *length = out - start; + return start; +} + +CSSSelector* CSSParser::createFloatingSelector() +{ + CSSSelector* selector = new CSSSelector; + m_floatingSelectors.add(selector); + return selector; +} + +CSSNthSelector* CSSParser::createFloatingNthSelector() +{ + CSSNthSelector* selector = new CSSNthSelector; + m_floatingSelectors.add(selector); + return selector; +} + +CSSSelector* CSSParser::sinkFloatingSelector(CSSSelector* selector) +{ + if (selector) { + ASSERT(m_floatingSelectors.contains(selector)); + m_floatingSelectors.remove(selector); + } + return selector; +} + +CSSParserValueList* CSSParser::createFloatingValueList() +{ + CSSParserValueList* list = new CSSParserValueList; + m_floatingValueLists.add(list); + return list; +} + +CSSParserValueList* CSSParser::sinkFloatingValueList(CSSParserValueList* list) +{ + if (list) { + ASSERT(m_floatingValueLists.contains(list)); + m_floatingValueLists.remove(list); + } + return list; +} + +CSSParserFunction* CSSParser::createFloatingFunction() +{ + CSSParserFunction* function = new CSSParserFunction; + m_floatingFunctions.add(function); + return function; +} + +CSSParserFunction* CSSParser::sinkFloatingFunction(CSSParserFunction* function) +{ + if (function) { + ASSERT(m_floatingFunctions.contains(function)); + m_floatingFunctions.remove(function); + } + return function; +} + +CSSParserValue& CSSParser::sinkFloatingValue(CSSParserValue& value) +{ + if (value.unit == CSSParserValue::Function) { + ASSERT(m_floatingFunctions.contains(value.function)); + m_floatingFunctions.remove(value.function); + } + return value; +} + +MediaQueryExp* CSSParser::createFloatingMediaQueryExp(const AtomicString& mediaFeature, CSSParserValueList* values) +{ + delete m_floatingMediaQueryExp; + m_floatingMediaQueryExp = new MediaQueryExp(mediaFeature, values); + return m_floatingMediaQueryExp; +} + +MediaQueryExp* CSSParser::sinkFloatingMediaQueryExp(MediaQueryExp* e) +{ + ASSERT(e == m_floatingMediaQueryExp); + m_floatingMediaQueryExp = 0; + return e; +} + +Vector<MediaQueryExp*>* CSSParser::createFloatingMediaQueryExpList() +{ + if (m_floatingMediaQueryExpList) { + deleteAllValues(*m_floatingMediaQueryExpList); + delete m_floatingMediaQueryExpList; + } + m_floatingMediaQueryExpList = new Vector<MediaQueryExp*>; + return m_floatingMediaQueryExpList; +} + +Vector<MediaQueryExp*>* CSSParser::sinkFloatingMediaQueryExpList(Vector<MediaQueryExp*>* l) +{ + ASSERT(l == m_floatingMediaQueryExpList); + m_floatingMediaQueryExpList = 0; + return l; +} + +MediaQuery* CSSParser::createFloatingMediaQuery(MediaQuery::Restrictor r, const String& mediaType, Vector<MediaQueryExp*>* exprs) +{ + delete m_floatingMediaQuery; + m_floatingMediaQuery = new MediaQuery(r, mediaType, exprs); + return m_floatingMediaQuery; +} + +MediaQuery* CSSParser::createFloatingMediaQuery(Vector<MediaQueryExp*>* exprs) +{ + return createFloatingMediaQuery(MediaQuery::None, "all", exprs); +} + +MediaQuery* CSSParser::sinkFloatingMediaQuery(MediaQuery* mq) +{ + ASSERT(mq == m_floatingMediaQuery); + m_floatingMediaQuery = 0; + return mq; +} + +MediaList* CSSParser::createMediaList() +{ + RefPtr<MediaList> list = MediaList::create(); + MediaList* result = list.get(); + m_parsedStyleObjects.append(list.release()); + return result; +} + +CSSRule* CSSParser::createCharsetRule(const CSSParserString& charset) +{ + if (!m_styleSheet) + return 0; + RefPtr<CSSCharsetRule> rule = CSSCharsetRule::create(m_styleSheet, charset); + CSSCharsetRule* result = rule.get(); + m_parsedStyleObjects.append(rule.release()); + return result; +} + +CSSRule* CSSParser::createImportRule(const CSSParserString& url, MediaList* media) +{ + if (!media || !m_styleSheet) + return 0; + RefPtr<CSSImportRule> rule = CSSImportRule::create(m_styleSheet, url, media); + CSSImportRule* result = rule.get(); + m_parsedStyleObjects.append(rule.release()); + return result; +} + +CSSRule* CSSParser::createMediaRule(MediaList* media, CSSRuleList* rules) +{ + if (!media || !rules || !m_styleSheet) + return 0; + RefPtr<CSSMediaRule> rule = CSSMediaRule::create(m_styleSheet, media, rules); + CSSMediaRule* result = rule.get(); + m_parsedStyleObjects.append(rule.release()); + return result; +} + +CSSRuleList* CSSParser::createRuleList() +{ + RefPtr<CSSRuleList> list = CSSRuleList::create(); + CSSRuleList* listPtr = list.get(); + + m_parsedRuleLists.append(list.release()); + return listPtr; +} + +WebKitCSSKeyframesRule* CSSParser::createKeyframesRule() +{ + RefPtr<WebKitCSSKeyframesRule> rule = WebKitCSSKeyframesRule::create(m_styleSheet); + WebKitCSSKeyframesRule* rulePtr = rule.get(); + m_parsedStyleObjects.append(rule.release()); + return rulePtr; +} + +CSSRule* CSSParser::createStyleRule(CSSSelector* selector) +{ + CSSStyleRule* result = 0; + if (selector) { + RefPtr<CSSStyleRule> rule = CSSStyleRule::create(m_styleSheet); + rule->setSelector(sinkFloatingSelector(selector)); + if (m_hasFontFaceOnlyValues) + deleteFontFaceOnlyValues(); + rule->setDeclaration(CSSMutableStyleDeclaration::create(rule.get(), m_parsedProperties, m_numParsedProperties)); + result = rule.get(); + m_parsedStyleObjects.append(rule.release()); + } + clearProperties(); + return result; +} + +CSSRule* CSSParser::createFontFaceRule() +{ + RefPtr<CSSFontFaceRule> rule = CSSFontFaceRule::create(m_styleSheet); + for (int i = 0; i < m_numParsedProperties; ++i) { + CSSProperty* property = m_parsedProperties[i]; + int id = property->id(); + if ((id == CSSPropertyFontWeight || id == CSSPropertyFontStyle || id == CSSPropertyFontVariant) && property->value()->isPrimitiveValue()) { + RefPtr<CSSValue> value = property->m_value.release(); + property->m_value = CSSValueList::createCommaSeparated(); + static_cast<CSSValueList*>(property->m_value.get())->append(value.release()); + } + } + rule->setDeclaration(CSSMutableStyleDeclaration::create(rule.get(), m_parsedProperties, m_numParsedProperties)); + clearProperties(); + CSSFontFaceRule* result = rule.get(); + m_parsedStyleObjects.append(rule.release()); + return result; +} + +CSSRule* CSSParser::createVariablesRule(MediaList* mediaList, bool variablesKeyword) +{ +#if ENABLE(CSS_VARIABLES) + RefPtr<CSSVariablesRule> rule = CSSVariablesRule::create(m_styleSheet, mediaList, variablesKeyword); + rule->setDeclaration(CSSVariablesDeclaration::create(rule.get(), m_variableNames, m_variableValues)); + clearVariables(); + CSSRule* result = rule.get(); + m_parsedStyleObjects.append(rule.release()); + return result; +#else + return 0; +#endif +} + +bool CSSParser::addVariable(const CSSParserString& name, CSSParserValueList* valueList) +{ +#if ENABLE(CSS_VARIABLES) + if (checkForVariables(valueList)) { + delete valueList; + return false; + } + m_variableNames.append(String(name)); + m_variableValues.append(CSSValueList::createFromParserValueList(valueList)); + return true; +#else + return false; +#endif +} + +bool CSSParser::addVariableDeclarationBlock(const CSSParserString& name) +{ +#if ENABLE(CSS_VARIABLES) + m_variableNames.append(String(name)); + m_variableValues.append(CSSMutableStyleDeclaration::create(0, m_parsedProperties, m_numParsedProperties)); + clearProperties(); + return true; +#else + return false; +#endif +} + +void CSSParser::clearVariables() +{ + m_variableNames.clear(); + m_variableValues.clear(); +} + +bool CSSParser::parseVariable(CSSVariablesDeclaration* declaration, const String& variableName, const String& variableValue) +{ + m_styleSheet = static_cast<CSSStyleSheet*>(declaration->stylesheet()); + + String nameValuePair = variableName + ": "; + nameValuePair += variableValue; + + setupParser("@-webkit-variables-decls{", nameValuePair, "} "); + cssyyparse(this); + m_rule = 0; + + bool ok = false; + if (m_variableNames.size()) { + ok = true; + declaration->addParsedVariable(variableName, m_variableValues[0]); + } + + clearVariables(); + + return ok; +} + +void CSSParser::parsePropertyWithResolvedVariables(int propId, bool isImportant, CSSMutableStyleDeclaration* declaration, CSSParserValueList* list) +{ + m_valueList = list; + m_styleSheet = static_cast<CSSStyleSheet*>(declaration->stylesheet()); + + if (parseValue(propId, isImportant)) + declaration->addParsedProperties(m_parsedProperties, m_numParsedProperties); + + clearProperties(); + m_valueList = 0; +} + +bool CSSParser::checkForVariables(CSSParserValueList* valueList) +{ + if (!valueList || !valueList->containsVariables()) + return false; + + bool hasVariables = false; + for (unsigned i = 0; i < valueList->size(); ++i) { + if (valueList->valueAt(i)->isVariable()) { + hasVariables = true; + break; + } + + if (valueList->valueAt(i)->unit == CSSParserValue::Function && checkForVariables(valueList->valueAt(i)->function->args)) { + hasVariables = true; + break; + } + } + + return hasVariables; +} + +void CSSParser::addUnresolvedProperty(int propId, bool important) +{ + RefPtr<CSSVariableDependentValue> val = CSSVariableDependentValue::create(CSSValueList::createFromParserValueList(m_valueList)); + addProperty(propId, val.release(), important); +} + +void CSSParser::deleteFontFaceOnlyValues() +{ + ASSERT(m_hasFontFaceOnlyValues); + int deletedProperties = 0; + + for (int i = 0; i < m_numParsedProperties; ++i) { + CSSProperty* property = m_parsedProperties[i]; + int id = property->id(); + if ((id == CSSPropertyFontWeight || id == CSSPropertyFontStyle || id == CSSPropertyFontVariant) && property->value()->isValueList()) { + delete property; + deletedProperties++; + } else if (deletedProperties) + m_parsedProperties[i - deletedProperties] = m_parsedProperties[i]; + } + + m_numParsedProperties -= deletedProperties; +} + +WebKitCSSKeyframeRule* CSSParser::createKeyframeRule(CSSParserValueList* keys) +{ + // Create a key string from the passed keys + String keyString; + for (unsigned i = 0; i < keys->size(); ++i) { + float key = (float) keys->valueAt(i)->fValue; + if (i != 0) + keyString += ","; + keyString += String::number(key); + keyString += "%"; + } + + RefPtr<WebKitCSSKeyframeRule> keyframe = WebKitCSSKeyframeRule::create(m_styleSheet); + keyframe->setKeyText(keyString); + keyframe->setDeclaration(CSSMutableStyleDeclaration::create(0, m_parsedProperties, m_numParsedProperties)); + + clearProperties(); + + WebKitCSSKeyframeRule* keyframePtr = keyframe.get(); + m_parsedStyleObjects.append(keyframe.release()); + return keyframePtr; +} + +static int cssPropertyID(const UChar* propertyName, unsigned length) +{ + if (!length) + return 0; + if (length > maxCSSPropertyNameLength) + return 0; + + char buffer[maxCSSPropertyNameLength + 1 + 1]; // 1 to turn "apple"/"khtml" into "webkit", 1 for null character + + for (unsigned i = 0; i != length; ++i) { + UChar c = propertyName[i]; + if (c == 0 || c >= 0x7F) + return 0; // illegal character + buffer[i] = toASCIILower(c); + } + buffer[length] = '\0'; + + const char* name = buffer; + if (buffer[0] == '-') { + // If the prefix is -apple- or -khtml-, change it to -webkit-. + // This makes the string one character longer. + if (hasPrefix(buffer, length, "-apple-") || hasPrefix(buffer, length, "-khtml-")) { + memmove(buffer + 7, buffer + 6, length + 1 - 6); + memcpy(buffer, "-webkit", 7); + ++length; + } + + // Honor -webkit-opacity as a synonym for opacity. + // This was the only syntax that worked in Safari 1.1, and may be in use on some websites and widgets. + if (strcmp(buffer, "-webkit-opacity") == 0) { + const char * const opacity = "opacity"; + name = opacity; + length = strlen(opacity); + } + } + + const props* hashTableEntry = findProp(name, length); + return hashTableEntry ? hashTableEntry->id : 0; +} + +int cssPropertyID(const String& string) +{ + return cssPropertyID(string.characters(), string.length()); +} + +int cssPropertyID(const CSSParserString& string) +{ + return cssPropertyID(string.characters, string.length); +} + +int cssValueKeywordID(const CSSParserString& string) +{ + unsigned length = string.length; + if (!length) + return 0; + if (length > maxCSSValueKeywordLength) + return 0; + + char buffer[maxCSSValueKeywordLength + 1 + 1]; // 1 to turn "apple"/"khtml" into "webkit", 1 for null character + + for (unsigned i = 0; i != length; ++i) { + UChar c = string.characters[i]; + if (c == 0 || c >= 0x7F) + return 0; // illegal character + buffer[i] = WTF::toASCIILower(c); + } + buffer[length] = '\0'; + + if (buffer[0] == '-') { + // If the prefix is -apple- or -khtml-, change it to -webkit-. + // This makes the string one character longer. + if (hasPrefix(buffer, length, "-apple-") || hasPrefix(buffer, length, "-khtml-")) { + memmove(buffer + 7, buffer + 6, length + 1 - 6); + memcpy(buffer, "-webkit", 7); + ++length; + } + } + + const css_value* hashTableEntry = findValue(buffer, length); + return hashTableEntry ? hashTableEntry->id : 0; +} + +#define YY_DECL int CSSParser::lex() +#define yyconst const +typedef int yy_state_type; +typedef unsigned YY_CHAR; +// The following line makes sure we treat non-Latin-1 Unicode characters correctly. +#define YY_SC_TO_UI(c) (c > 0xff ? 0xff : c) +#define YY_DO_BEFORE_ACTION \ + yytext = yy_bp; \ + yyleng = (int) (yy_cp - yy_bp); \ + yy_hold_char = *yy_cp; \ + *yy_cp = 0; \ + yy_c_buf_p = yy_cp; +#define YY_BREAK break; +#define ECHO +#define YY_RULE_SETUP +#define INITIAL 0 +#define YY_STATE_EOF(state) (YY_END_OF_BUFFER + state + 1) +#define yyterminate() yyTok = END_TOKEN; return yyTok +#define YY_FATAL_ERROR(a) +// The following line is needed to build the tokenizer with a condition stack. +// The macro is used in the tokenizer grammar with lines containing +// BEGIN(mediaqueries) and BEGIN(initial). yy_start acts as index to +// tokenizer transition table, and 'mediaqueries' and 'initial' are +// offset multipliers that specify which transitions are active +// in the tokenizer during in each condition (tokenizer state). +#define BEGIN yy_start = 1 + 2 * + +#include "tokenizer.cpp" + +} |