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Diffstat (limited to 'webkit/pending/CSSParser.cpp')
| -rw-r--r-- | webkit/pending/CSSParser.cpp | 3971 |
1 files changed, 3971 insertions, 0 deletions
diff --git a/webkit/pending/CSSParser.cpp b/webkit/pending/CSSParser.cpp new file mode 100644 index 0000000..43601ef --- /dev/null +++ b/webkit/pending/CSSParser.cpp @@ -0,0 +1,3971 @@ +/* + * 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. + * + * 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 "CSSCharsetRule.h" +#include "CSSCursorImageValue.h" +#include "CSSHelper.h" +#include "CSSImageValue.h" +#include "CSSFontFaceRule.h" +#include "CSSFontFaceSrcValue.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 "CSSRuleList.h" +#include "CSSSelector.h" +#include "CSSStyleRule.h" +#include "CSSStyleSheet.h" +#include "CSSTransformValue.h" +#include "CSSUnicodeRangeValue.h" +#include "CSSValueKeywords.h" +#include "CSSValueList.h" +#include "Counter.h" +#include "DashboardRegion.h" +#include "Document.h" +#include "FloatConversion.h" +#include "FontFamilyValue.h" +#include "FontValue.h" +#include "KURL.h" +#include "MediaList.h" +#include "MediaQueryExp.h" +#include "Pair.h" +#include "ShadowValue.h" + +// strtod HACK: WebCore depends on KJS for strtod +#if USE(V8_BINDING) +// defined in v8/src/dtoa.c +extern "C" double strtod(const char *, char **); +#define kjs_strtod strtod +#else +#include <kjs/dtoa.h> +#endif + +#define YYDEBUG 0 + +#if YYDEBUG > 0 +extern int cssyydebug; +#endif + +extern int cssyyparse(void* parser); + +using namespace std; +using namespace WTF; + +namespace WebCore { + +ValueList::~ValueList() +{ + size_t numValues = m_values.size(); + for (size_t i = 0; i < numValues; i++) + if (m_values[i].unit == Value::Function) + delete m_values[i].function; +} + +namespace { + class ShorthandScope { + public: + ShorthandScope(CSSParser* parser, int propId) : m_parser(parser) + { + if (!(m_parser->m_inParseShorthand++)) + m_parser->m_currentShorthand = propId; + } + ~ShorthandScope() + { + if (!(--m_parser->m_inParseShorthand)) + m_parser->m_currentShorthand = 0; + } + + private: + CSSParser* m_parser; + }; +} + +CSSParser* CSSParser::currentParser = 0; + +CSSParser::CSSParser(bool strictParsing) + : m_floatingMediaQuery(0) + , m_floatingMediaQueryExp(0) + , m_floatingMediaQueryExpList(0) +{ +#ifdef CSS_DEBUG + kdDebug(6080) << "CSSParser::CSSParser this=" << this << endl; +#endif + strict = strictParsing; + + parsedProperties = (CSSProperty **)fastMalloc(32 * sizeof(CSSProperty *)); + numParsedProperties = 0; + maxParsedProperties = 32; + + data = 0; + valueList = 0; + id = 0; + important = false; + m_inParseShorthand = 0; + m_currentShorthand = 0; + m_implicitShorthand = false; + + defaultNamespace = starAtom; + + yy_start = 1; + +#if YYDEBUG > 0 + cssyydebug = 1; +#endif +} + +CSSParser::~CSSParser() +{ + clearProperties(); + fastFree(parsedProperties); + + delete valueList; + + fastFree(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 ParseString::lower() +{ + // Fast case for all-ASCII. + UChar ored = 0; + for (int i = 0; i < length; i++) + ored |= characters[i]; + if (ored & ~0x7F) + for (int i = 0; i < length; i++) + characters[i] = Unicode::toLower(characters[i]); + else + for (int i = 0; i < length; i++) + characters[i] = toASCIILower(characters[i]); +} + +void CSSParser::setupParser(const char* prefix, const String& string, const char* suffix) +{ + int length = string.length() + strlen(prefix) + strlen(suffix) + 2; + + if (data) + fastFree(data); + + data = static_cast<UChar*>(fastMalloc(length * sizeof(UChar))); + for (unsigned i = 0; i < strlen(prefix); i++) + data[i] = prefix[i]; + + memcpy(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++) + data[i] = suffix[i - start]; + + data[length - 1] = 0; + data[length - 2] = 0; + + yy_hold_char = 0; + yyleng = 0; + yytext = yy_c_buf_p = data; + yy_hold_char = *yy_c_buf_p; +} + +void CSSParser::parseSheet(CSSStyleSheet* sheet, const String& string) +{ + styleElement = sheet; + defaultNamespace = starAtom; // Reset the default namespace. + + setupParser("", string, ""); + + CSSParser* old = currentParser; + currentParser = this; + cssyyparse(this); + currentParser = old; + + rule = 0; +} + +PassRefPtr<CSSRule> CSSParser::parseRule(CSSStyleSheet *sheet, const String &string) +{ + styleElement = sheet; + + setupParser("@-webkit-rule{", string, "} "); + + CSSParser* old = currentParser; + currentParser = this; + cssyyparse(this); + currentParser = old; + + return rule.release(); +} + +bool CSSParser::parseValue(CSSMutableStyleDeclaration *declaration, int _id, const String &string, bool _important) +{ + styleElement = declaration->stylesheet(); + + setupParser("@-webkit-value{", string, "} "); + + id = _id; + important = _important; + + CSSParser* old = currentParser; + currentParser = this; + cssyyparse(this); + currentParser = old; + + rule = 0; + + bool ok = false; + if (numParsedProperties) { + ok = true; + declaration->addParsedProperties(parsedProperties, 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(new CSSMutableStyleDeclaration); + + // Now try to create a color from the rgb() or rgba() syntax. + if (parser.parseColor(dummyStyleDeclaration.get(), string)) { + CSSValue* value = parser.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) +{ + styleElement = declaration->stylesheet(); + + setupParser("@-webkit-decls{color:", string, "} "); + + CSSParser* old = currentParser; + currentParser = this; + cssyyparse(this); + currentParser = old; + + rule = 0; + + bool ok = false; + if (numParsedProperties && parsedProperties[0]->m_id == CSS_PROP_COLOR) + ok = true; + + return ok; +} + +bool CSSParser::parseDeclaration(CSSMutableStyleDeclaration *declaration, const String &string) +{ + styleElement = declaration->stylesheet(); + + setupParser("@-webkit-decls{", string, "} "); + + CSSParser* old = currentParser; + currentParser = this; + cssyyparse(this); + currentParser = old; + + rule = 0; + + bool ok = false; + if (numParsedProperties) { + ok = true; + declaration->addParsedProperties(parsedProperties, numParsedProperties); + clearProperties(); + } + + return ok; +} + +bool CSSParser::parseMediaQuery(MediaList* queries, const String& string) +{ + if (string.isEmpty() || string.isNull()) { + return true; + } + + 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, "} "); + + CSSParser* old = currentParser; + currentParser = this; + cssyyparse(this); + currentParser = old; + + bool ok = false; + if (mediaQuery) { + ok = true; + queries->appendMediaQuery(mediaQuery); + 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 (numParsedProperties >= maxParsedProperties) { + maxParsedProperties += 32; + parsedProperties = (CSSProperty **)fastRealloc(parsedProperties, + maxParsedProperties*sizeof(CSSProperty *)); + } + parsedProperties[numParsedProperties++] = prop; +} + +void CSSParser::rollbackLastProperties(int num) +{ + ASSERT(num >= 0); + ASSERT(numParsedProperties >= num); + + for (int i = 0; i < num; ++i) + delete parsedProperties[--numParsedProperties]; +} + +void CSSParser::clearProperties() +{ + for (int i = 0; i < numParsedProperties; i++) + delete parsedProperties[i]; + numParsedProperties = 0; +} + +Document *CSSParser::document() const +{ + StyleBase *root = styleElement; + Document *doc = 0; + while (root->parent()) + root = root->parent(); + if (root->isCSSStyleSheet()) + doc = static_cast<CSSStyleSheet*>(root)->doc(); + return doc; +} + +bool CSSParser::validUnit(Value* 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)) && (value->fValue == 0 || !strict))) { + value->unit = (unitflags & FLength) ? CSSPrimitiveValue::CSS_PX : CSSPrimitiveValue::CSS_DEG; + b = true; + } + if (!b && (unitflags & FInteger) && value->isInt) + b = true; + break; + case CSSPrimitiveValue::CSS_PERCENTAGE: + b = (unitflags & FPercent); + break; + case Value::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(Value* value) +{ + if (value->unit != CSSPrimitiveValue::CSS_IDENT || value->id) + return 0; + + String str = domString(value->string); + if (str == "em") + return CSSPrimitiveValue::CSS_EMS; + if (str == "ex") + return CSSPrimitiveValue::CSS_EXS; + if (str == "px") + return CSSPrimitiveValue::CSS_PX; + if (str == "cm") + return CSSPrimitiveValue::CSS_CM; + if (str == "mm") + return CSSPrimitiveValue::CSS_MM; + if (str == "in") + return CSSPrimitiveValue::CSS_IN; + if (str == "pt") + return CSSPrimitiveValue::CSS_PT; + if (str == "pc") + return CSSPrimitiveValue::CSS_PC; + if (str == "deg") + return CSSPrimitiveValue::CSS_DEG; + if (str == "rad") + return CSSPrimitiveValue::CSS_RAD; + if (str == "grad") + return CSSPrimitiveValue::CSS_GRAD; + if (str == "ms") + return CSSPrimitiveValue::CSS_MS; + if (str == "s") + return CSSPrimitiveValue::CSS_S; + if (str == "Hz") + return CSSPrimitiveValue::CSS_HZ; + if (str == "kHz") + return CSSPrimitiveValue::CSS_KHZ; + + return 0; +} + +void CSSParser::checkForOrphanedUnits() +{ + if (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. + Value* numericVal = 0; + unsigned size = valueList->size(); + for (unsigned i = 0; i < size; i++) { + Value* value = 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. + 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 (!valueList) + return false; + + Value *value = valueList->current(); + + if (!value) + return false; + + int id = value->id; + + int num = inShorthand() ? 1 : valueList->size(); + + if (id == CSS_VAL_INHERIT) { + if (num != 1) + return false; + addProperty(propId, new CSSInheritedValue(), important); + return true; + } + else if (id == CSS_VAL_INITIAL) { + if (num != 1) + return false; + addProperty(propId, new CSSInitialValue(false), important); + return true; + } + + bool valid_primitive = false; + RefPtr<CSSValue> parsedValue; + + // 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(); + + 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 CSS_PROP_SIZE: // <length>{1,2} | auto | portrait | landscape | inherit + case CSS_PROP_QUOTES: // [<string> <string>]+ | none | inherit + if (id) + valid_primitive = true; + break; + case CSS_PROP_UNICODE_BIDI: // normal | embed | bidi-override | inherit + if (id == CSS_VAL_NORMAL || + id == CSS_VAL_EMBED || + id == CSS_VAL_BIDI_OVERRIDE) + valid_primitive = true; + break; + + case CSS_PROP_POSITION: // static | relative | absolute | fixed | inherit + if (id == CSS_VAL_STATIC || + id == CSS_VAL_RELATIVE || + id == CSS_VAL_ABSOLUTE || + id == CSS_VAL_FIXED) + valid_primitive = true; + break; + + case CSS_PROP_PAGE_BREAK_AFTER: // auto | always | avoid | left | right | inherit + case CSS_PROP_PAGE_BREAK_BEFORE: + case CSS_PROP__WEBKIT_COLUMN_BREAK_AFTER: + case CSS_PROP__WEBKIT_COLUMN_BREAK_BEFORE: + if (id == CSS_VAL_AUTO || + id == CSS_VAL_ALWAYS || + id == CSS_VAL_AVOID || + id == CSS_VAL_LEFT || + id == CSS_VAL_RIGHT) + valid_primitive = true; + break; + + case CSS_PROP_PAGE_BREAK_INSIDE: // avoid | auto | inherit + case CSS_PROP__WEBKIT_COLUMN_BREAK_INSIDE: + if (id == CSS_VAL_AUTO || id == CSS_VAL_AVOID) + valid_primitive = true; + break; + + case CSS_PROP_EMPTY_CELLS: // show | hide | inherit + if (id == CSS_VAL_SHOW || + id == CSS_VAL_HIDE) + valid_primitive = true; + break; + + case CSS_PROP_CONTENT: // [ <string> | <uri> | <counter> | attr(X) | open-quote | + // close-quote | no-open-quote | no-close-quote ]+ | inherit + return parseContent(propId, important); + break; + + case CSS_PROP_WHITE_SPACE: // normal | pre | nowrap | inherit + if (id == CSS_VAL_NORMAL || + id == CSS_VAL_PRE || + id == CSS_VAL_PRE_WRAP || + id == CSS_VAL_PRE_LINE || + id == CSS_VAL_NOWRAP) + valid_primitive = true; + break; + + case CSS_PROP_CLIP: // <shape> | auto | inherit + if (id == CSS_VAL_AUTO) + valid_primitive = true; + else if (value->unit == Value::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 CSS_PROP_CAPTION_SIDE: // top | bottom | left | right | inherit + if (id == CSS_VAL_LEFT || id == CSS_VAL_RIGHT || + id == CSS_VAL_TOP || id == CSS_VAL_BOTTOM) + valid_primitive = true; + break; + + case CSS_PROP_BORDER_COLLAPSE: // collapse | separate | inherit + if (id == CSS_VAL_COLLAPSE || id == CSS_VAL_SEPARATE) + valid_primitive = true; + break; + + case CSS_PROP_VISIBILITY: // visible | hidden | collapse | inherit + if (id == CSS_VAL_VISIBLE || id == CSS_VAL_HIDDEN || id == CSS_VAL_COLLAPSE) + valid_primitive = true; + break; + + case CSS_PROP_OVERFLOW: { + ShorthandScope scope(this, propId); + if (num != 1 || !parseValue(CSS_PROP_OVERFLOW_X, important)) + return false; + CSSValue* value = parsedProperties[numParsedProperties - 1]->value(); + addProperty(CSS_PROP_OVERFLOW_Y, value, important); + return true; + } + case CSS_PROP_OVERFLOW_X: + case CSS_PROP_OVERFLOW_Y: // visible | hidden | scroll | auto | marquee | overlay | inherit + if (id == CSS_VAL_VISIBLE || id == CSS_VAL_HIDDEN || id == CSS_VAL_SCROLL || id == CSS_VAL_AUTO || + id == CSS_VAL_OVERLAY || id == CSS_VAL__WEBKIT_MARQUEE) + valid_primitive = true; + break; + + case CSS_PROP_LIST_STYLE_POSITION: // inside | outside | inherit + if (id == CSS_VAL_INSIDE || id == CSS_VAL_OUTSIDE) + valid_primitive = true; + break; + + case CSS_PROP_LIST_STYLE_TYPE: + // 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 >= CSS_VAL_DISC && id <= CSS_VAL_KATAKANA_IROHA) || id == CSS_VAL_NONE) + valid_primitive = true; + break; + + case CSS_PROP_DISPLAY: + // 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 >= CSS_VAL_INLINE && id <= CSS_VAL__WEBKIT_INLINE_BOX) || id == CSS_VAL_NONE) + valid_primitive = true; + break; + + case CSS_PROP_DIRECTION: // ltr | rtl | inherit + if (id == CSS_VAL_LTR || id == CSS_VAL_RTL) + valid_primitive = true; + break; + + case CSS_PROP_TEXT_TRANSFORM: // capitalize | uppercase | lowercase | none | inherit + if ((id >= CSS_VAL_CAPITALIZE && id <= CSS_VAL_LOWERCASE) || id == CSS_VAL_NONE) + valid_primitive = true; + break; + + case CSS_PROP_FLOAT: // left | right | none | inherit + center for buggy CSS + if (id == CSS_VAL_LEFT || id == CSS_VAL_RIGHT || + id == CSS_VAL_NONE || id == CSS_VAL_CENTER) + valid_primitive = true; + break; + + case CSS_PROP_CLEAR: // none | left | right | both | inherit + if (id == CSS_VAL_NONE || id == CSS_VAL_LEFT || + id == CSS_VAL_RIGHT|| id == CSS_VAL_BOTH) + valid_primitive = true; + break; + + case CSS_PROP_TEXT_ALIGN: + // left | right | center | justify | webkit_left | webkit_right | webkit_center | start | end | <string> | inherit + if ((id >= CSS_VAL__WEBKIT_AUTO && id <= CSS_VAL__WEBKIT_CENTER) || id == CSS_VAL_START || id == CSS_VAL_END || + value->unit == CSSPrimitiveValue::CSS_STRING) + valid_primitive = true; + break; + + case CSS_PROP_OUTLINE_STYLE: // <border-style> | auto | inherit + if (id == CSS_VAL_AUTO) { + valid_primitive = true; + break; + } // Fall through! + case CSS_PROP_BORDER_TOP_STYLE: //// <border-style> | inherit + case CSS_PROP_BORDER_RIGHT_STYLE: // Defined as: none | hidden | dotted | dashed | + case CSS_PROP_BORDER_BOTTOM_STYLE: // solid | double | groove | ridge | inset | outset + case CSS_PROP_BORDER_LEFT_STYLE: + case CSS_PROP__WEBKIT_COLUMN_RULE_STYLE: + if (id >= CSS_VAL_NONE && id <= CSS_VAL_DOUBLE) + valid_primitive = true; + break; + + case CSS_PROP_FONT_WEIGHT: // normal | bold | bolder | lighter | 100 | 200 | 300 | 400 | + // 500 | 600 | 700 | 800 | 900 | inherit + if (id >= CSS_VAL_NORMAL && id <= CSS_VAL_900) { + // Allready correct id + valid_primitive = true; + } else if (validUnit(value, FInteger|FNonNeg, false)) { + int weight = (int)value->fValue; + if ((weight % 100)) + break; + weight /= 100; + if (weight >= 1 && weight <= 9) { + id = CSS_VAL_100 + weight - 1; + valid_primitive = true; + } + } + break; + + case CSS_PROP_BORDER_SPACING: { + const int properties[2] = { CSS_PROP__WEBKIT_BORDER_HORIZONTAL_SPACING, + CSS_PROP__WEBKIT_BORDER_VERTICAL_SPACING }; + if (num == 1) { + ShorthandScope scope(this, CSS_PROP_BORDER_SPACING); + if (!parseValue(properties[0], important)) + return false; + CSSValue* value = parsedProperties[numParsedProperties-1]->value(); + addProperty(properties[1], value, important); + return true; + } + else if (num == 2) { + ShorthandScope scope(this, CSS_PROP_BORDER_SPACING); + if (!parseValue(properties[0], important) || !parseValue(properties[1], important)) + return false; + return true; + } + return false; + } + case CSS_PROP__WEBKIT_BORDER_HORIZONTAL_SPACING: + case CSS_PROP__WEBKIT_BORDER_VERTICAL_SPACING: + valid_primitive = validUnit(value, FLength|FNonNeg, strict); + break; + case CSS_PROP_SCROLLBAR_FACE_COLOR: // IE5.5 + case CSS_PROP_SCROLLBAR_SHADOW_COLOR: // IE5.5 + case CSS_PROP_SCROLLBAR_HIGHLIGHT_COLOR: // IE5.5 + case CSS_PROP_SCROLLBAR_3DLIGHT_COLOR: // IE5.5 + case CSS_PROP_SCROLLBAR_DARKSHADOW_COLOR: // IE5.5 + case CSS_PROP_SCROLLBAR_TRACK_COLOR: // IE5.5 + case CSS_PROP_SCROLLBAR_ARROW_COLOR: // IE5.5 + if (strict) + break; + /* nobreak */ + case CSS_PROP_OUTLINE_COLOR: // <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 == CSS_PROP_OUTLINE_COLOR && (id == CSS_VAL_INVERT || id == CSS_VAL__WEBKIT_FOCUS_RING_COLOR)) { + valid_primitive = true; + break; + } + /* nobreak */ + case CSS_PROP_BACKGROUND_COLOR: // <color> | inherit + case CSS_PROP_BORDER_TOP_COLOR: // <color> | inherit + case CSS_PROP_BORDER_RIGHT_COLOR: // <color> | inherit + case CSS_PROP_BORDER_BOTTOM_COLOR: // <color> | inherit + case CSS_PROP_BORDER_LEFT_COLOR: // <color> | inherit + case CSS_PROP_COLOR: // <color> | inherit + case CSS_PROP_TEXT_LINE_THROUGH_COLOR: // CSS3 text decoration colors + case CSS_PROP_TEXT_UNDERLINE_COLOR: + case CSS_PROP_TEXT_OVERLINE_COLOR: + case CSS_PROP__WEBKIT_COLUMN_RULE_COLOR: + case CSS_PROP__WEBKIT_TEXT_FILL_COLOR: + case CSS_PROP__WEBKIT_TEXT_STROKE_COLOR: + if (id == CSS_VAL__WEBKIT_TEXT) + valid_primitive = true; // Always allow this, even when strict parsing is on, + // since we use this in our UA sheets. + else if (id >= CSS_VAL_AQUA && id <= CSS_VAL_WINDOWTEXT || id == CSS_VAL_MENU || + (id >= CSS_VAL__WEBKIT_FOCUS_RING_COLOR && id < CSS_VAL__WEBKIT_TEXT && !strict)) { + valid_primitive = true; + } else { + parsedValue = parseColor(); + if (parsedValue) + valueList->next(); + } + break; + + case CSS_PROP_CURSOR: { + // [<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 ] ] | inherit + RefPtr<CSSValueList> list; + while (value && value->unit == CSSPrimitiveValue::CSS_URI) { + if (!list) + list = new CSSValueList; + String uri = parseURL(domString(value->string)); + Vector<int> coords; + value = valueList->next(); + while (value && value->unit == CSSPrimitiveValue::CSS_NUMBER) { + coords.append(int(value->fValue)); + value = valueList->next(); + } + IntPoint hotspot; + int nrcoords = coords.size(); + if (nrcoords > 0 && nrcoords != 2) { + if (strict) // only support hotspot pairs in strict mode + return false; + } else if(strict && nrcoords == 2) + hotspot = IntPoint(coords[0], coords[1]); + if (strict || coords.size() == 0) { +#if ENABLE(SVG) + if (uri.startsWith("#")) + list->append(new CSSPrimitiveValue(uri, CSSPrimitiveValue::CSS_URI)); + else +#endif + if (!uri.isEmpty()) { + list->append(new CSSCursorImageValue( + KURL(styleElement->baseURL().deprecatedString(), uri.deprecatedString()).string(), + hotspot, styleElement)); + } + } + if ((strict && !value) || (value && !(value->unit == Value::Operator && value->iValue == ','))) + return false; + value = valueList->next(); // comma + } + if (list) { + if (!value) { // no value after url list (MSIE 5 compatibility) + if (list->length() != 1) + return false; + } else if (!strict && value->id == CSS_VAL_HAND) // MSIE 5 compatibility :/ + list->append(new CSSPrimitiveValue(CSS_VAL_POINTER)); + else if (value && ((value->id >= CSS_VAL_AUTO && value->id <= CSS_VAL_ALL_SCROLL) || value->id == CSS_VAL_COPY || value->id == CSS_VAL_NONE)) + list->append(new CSSPrimitiveValue(value->id)); + valueList->next(); + parsedValue = list.release(); + break; + } + id = value->id; + if (!strict && value->id == CSS_VAL_HAND) { // MSIE 5 compatibility :/ + id = CSS_VAL_POINTER; + valid_primitive = true; + } else if ((value->id >= CSS_VAL_AUTO && value->id <= CSS_VAL_ALL_SCROLL) || value->id == CSS_VAL_COPY || value->id == CSS_VAL_NONE) + valid_primitive = true; + break; + } + + case CSS_PROP_BACKGROUND_ATTACHMENT: + case CSS_PROP__WEBKIT_BACKGROUND_CLIP: + case CSS_PROP__WEBKIT_BACKGROUND_COMPOSITE: + case CSS_PROP_BACKGROUND_IMAGE: + case CSS_PROP__WEBKIT_BACKGROUND_ORIGIN: + case CSS_PROP_BACKGROUND_POSITION: + case CSS_PROP_BACKGROUND_POSITION_X: + case CSS_PROP_BACKGROUND_POSITION_Y: + case CSS_PROP__WEBKIT_BACKGROUND_SIZE: + case CSS_PROP_BACKGROUND_REPEAT: { + RefPtr<CSSValue> val1; + RefPtr<CSSValue> val2; + int propId1, propId2; + if (parseBackgroundProperty(propId, propId1, propId2, val1, val2)) { + addProperty(propId1, val1.release(), important); + if (val2) + addProperty(propId2, val2.release(), important); + return true; + } + return false; + } + case CSS_PROP_LIST_STYLE_IMAGE: // <uri> | none | inherit + if (id == CSS_VAL_NONE) { + parsedValue = new CSSImageValue(); + valueList->next(); + } + else if (value->unit == CSSPrimitiveValue::CSS_URI) { + // ### allow string in non strict mode? + String uri = parseURL(domString(value->string)); + if (!uri.isEmpty()) { + parsedValue = new CSSImageValue( + KURL(styleElement->baseURL().deprecatedString(), uri.deprecatedString()).string(), + styleElement); + valueList->next(); + } + } + break; + + case CSS_PROP__WEBKIT_TEXT_STROKE_WIDTH: + case CSS_PROP_OUTLINE_WIDTH: // <border-width> | inherit + case CSS_PROP_BORDER_TOP_WIDTH: //// <border-width> | inherit + case CSS_PROP_BORDER_RIGHT_WIDTH: // Which is defined as + case CSS_PROP_BORDER_BOTTOM_WIDTH: // thin | medium | thick | <length> + case CSS_PROP_BORDER_LEFT_WIDTH: + case CSS_PROP__WEBKIT_COLUMN_RULE_WIDTH: + if (id == CSS_VAL_THIN || id == CSS_VAL_MEDIUM || id == CSS_VAL_THICK) + valid_primitive = true; + else + valid_primitive = validUnit(value, FLength, strict); + break; + + case CSS_PROP_LETTER_SPACING: // normal | <length> | inherit + case CSS_PROP_WORD_SPACING: // normal | <length> | inherit + if (id == CSS_VAL_NORMAL) + valid_primitive = true; + else + valid_primitive = validUnit(value, FLength, strict); + break; + + case CSS_PROP_WORD_BREAK: // normal | break-all | break-word (this is a custom extension) + if (id == CSS_VAL_NORMAL || id == CSS_VAL_BREAK_ALL || id == CSS_VAL_BREAK_WORD) + valid_primitive = true; + break; + + case CSS_PROP_WORD_WRAP: // normal | break-word + if (id == CSS_VAL_NORMAL || id == CSS_VAL_BREAK_WORD) + valid_primitive = true; + break; + + case CSS_PROP_TEXT_INDENT: // <length> | <percentage> | inherit + case CSS_PROP_PADDING_TOP: //// <padding-width> | inherit + case CSS_PROP_PADDING_RIGHT: // Which is defined as + case CSS_PROP_PADDING_BOTTOM: // <length> | <percentage> + case CSS_PROP_PADDING_LEFT: //// + case CSS_PROP__WEBKIT_PADDING_START: + valid_primitive = (!id && validUnit(value, FLength|FPercent, strict)); + break; + + case CSS_PROP_MAX_HEIGHT: // <length> | <percentage> | none | inherit + case CSS_PROP_MAX_WIDTH: // <length> | <percentage> | none | inherit + if (id == CSS_VAL_NONE || id == CSS_VAL_INTRINSIC || id == CSS_VAL_MIN_INTRINSIC) { + valid_primitive = true; + break; + } + /* nobreak */ + case CSS_PROP_MIN_HEIGHT: // <length> | <percentage> | inherit + case CSS_PROP_MIN_WIDTH: // <length> | <percentage> | inherit + if (id == CSS_VAL_INTRINSIC || id == CSS_VAL_MIN_INTRINSIC) + valid_primitive = true; + else + valid_primitive = (!id && validUnit(value, FLength|FPercent|FNonNeg, strict)); + break; + + case CSS_PROP_FONT_SIZE: + // <absolute-size> | <relative-size> | <length> | <percentage> | inherit + if (id >= CSS_VAL_XX_SMALL && id <= CSS_VAL_LARGER) + valid_primitive = true; + else + valid_primitive = (validUnit(value, FLength|FPercent, strict)); + break; + + case CSS_PROP_FONT_STYLE: // normal | italic | oblique | inherit + if (id == CSS_VAL_NORMAL || id == CSS_VAL_ITALIC || id == CSS_VAL_OBLIQUE) + valid_primitive = true; + break; + + case CSS_PROP_FONT_VARIANT: // normal | small-caps | inherit + if (id == CSS_VAL_NORMAL || id == CSS_VAL_SMALL_CAPS) + valid_primitive = true; + break; + + case CSS_PROP_VERTICAL_ALIGN: + // baseline | sub | super | top | text-top | middle | bottom | text-bottom | + // <percentage> | <length> | inherit + + if (id >= CSS_VAL_BASELINE && id <= CSS_VAL__WEBKIT_BASELINE_MIDDLE) + valid_primitive = true; + else + valid_primitive = (!id && validUnit(value, FLength|FPercent, strict)); + break; + + case CSS_PROP_HEIGHT: // <length> | <percentage> | auto | inherit + case CSS_PROP_WIDTH: // <length> | <percentage> | auto | inherit + if (id == CSS_VAL_AUTO || id == CSS_VAL_INTRINSIC || id == CSS_VAL_MIN_INTRINSIC) + valid_primitive = true; + else + // ### handle multilength case where we allow relative units + valid_primitive = (!id && validUnit(value, FLength|FPercent|FNonNeg, strict)); + break; + + case CSS_PROP_BOTTOM: // <length> | <percentage> | auto | inherit + case CSS_PROP_LEFT: // <length> | <percentage> | auto | inherit + case CSS_PROP_RIGHT: // <length> | <percentage> | auto | inherit + case CSS_PROP_TOP: // <length> | <percentage> | auto | inherit + case CSS_PROP_MARGIN_TOP: //// <margin-width> | inherit + case CSS_PROP_MARGIN_RIGHT: // Which is defined as + case CSS_PROP_MARGIN_BOTTOM: // <length> | <percentage> | auto | inherit + case CSS_PROP_MARGIN_LEFT: //// + case CSS_PROP__WEBKIT_MARGIN_START: + if (id == CSS_VAL_AUTO) + valid_primitive = true; + else + valid_primitive = (!id && validUnit(value, FLength|FPercent, strict)); + break; + + case CSS_PROP_Z_INDEX: // auto | <integer> | inherit + if (id == CSS_VAL_AUTO) { + valid_primitive = true; + break; + } + /* nobreak */ + case CSS_PROP_ORPHANS: // <integer> | inherit + case CSS_PROP_WIDOWS: // <integer> | inherit + // ### not supported later on + valid_primitive = (!id && validUnit(value, FInteger, false)); + break; + + case CSS_PROP_LINE_HEIGHT: // normal | <number> | <length> | <percentage> | inherit + if (id == CSS_VAL_NORMAL) + valid_primitive = true; + else + valid_primitive = (!id && validUnit(value, FNumber|FLength|FPercent, strict)); + break; + case CSS_PROP_COUNTER_INCREMENT: // [ <identifier> <integer>? ]+ | none | inherit + if (id != CSS_VAL_NONE) + return parseCounter(propId, 1, important); + valid_primitive = true; + break; + case CSS_PROP_COUNTER_RESET: // [ <identifier> <integer>? ]+ | none | inherit + if (id != CSS_VAL_NONE) + return parseCounter(propId, 0, important); + valid_primitive = true; + break; + case CSS_PROP_FONT_FAMILY: + // [[ <family-name> | <generic-family> ],]* [<family-name> | <generic-family>] | inherit + { + parsedValue = parseFontFamily(); + break; + } + + case CSS_PROP_TEXT_DECORATION: + case CSS_PROP__WEBKIT_TEXT_DECORATIONS_IN_EFFECT: + // none | [ underline || overline || line-through || blink ] | inherit + if (id == CSS_VAL_NONE) { + valid_primitive = true; + } else { + RefPtr<CSSValueList> list(new CSSValueList); + bool is_valid = true; + while(is_valid && value) { + switch (value->id) { + case CSS_VAL_BLINK: + break; + case CSS_VAL_UNDERLINE: + case CSS_VAL_OVERLINE: + case CSS_VAL_LINE_THROUGH: + list->append(new CSSPrimitiveValue(value->id)); + break; + default: + is_valid = false; + } + value = valueList->next(); + } + if (list->length() && is_valid) { + parsedValue = list.release(); + valueList->next(); + } + } + break; + + case CSS_PROP_TABLE_LAYOUT: // auto | fixed | inherit + if (id == CSS_VAL_AUTO || id == CSS_VAL_FIXED) + valid_primitive = true; + break; + + case CSS_PROP_SRC: // 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 CSS_PROP_UNICODE_RANGE: + return parseFontFaceUnicodeRange(); + + /* CSS3 properties */ + case CSS_PROP__WEBKIT_APPEARANCE: + if ((id >= CSS_VAL_CHECKBOX && id <= CSS_VAL_TEXTAREA) || id == CSS_VAL_NONE) + valid_primitive = true; + break; + + case CSS_PROP__WEBKIT_BINDING: +#if ENABLE(XBL) + if (id == CSS_VAL_NONE) + valid_primitive = true; + else { + RefPtr<CSSValueList> values(new CSSValueList()); + Value* val; + RefPtr<CSSValue> parsedValue; + while ((val = valueList->current())) { + if (val->unit == CSSPrimitiveValue::CSS_URI) { + String value = parseURL(domString(val->string)); + parsedValue = new CSSPrimitiveValue( + KURL(styleElement->baseURL().deprecatedString(), value.deprecatedString()).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()); + valueList->next(); + } + if (!values->length()) + return false; + + addProperty(propId, values.release(), important); + valueList->next(); + return true; + } +#endif + break; + case CSS_PROP__WEBKIT_BORDER_IMAGE: + if (id == CSS_VAL_NONE) + valid_primitive = true; + else + return parseBorderImage(propId, important); + break; + case CSS_PROP__WEBKIT_BORDER_TOP_RIGHT_RADIUS: + case CSS_PROP__WEBKIT_BORDER_TOP_LEFT_RADIUS: + case CSS_PROP__WEBKIT_BORDER_BOTTOM_LEFT_RADIUS: + case CSS_PROP__WEBKIT_BORDER_BOTTOM_RIGHT_RADIUS: + case CSS_PROP__WEBKIT_BORDER_RADIUS: { + if (num != 1 && num != 2) + return false; + valid_primitive = validUnit(value, FLength, strict); + if (!valid_primitive) + return false; + RefPtr<CSSPrimitiveValue> parsedValue1 = new CSSPrimitiveValue(value->fValue, (CSSPrimitiveValue::UnitTypes)value->unit); + RefPtr<CSSPrimitiveValue> parsedValue2; + if (num == 2) { + value = valueList->next(); + valid_primitive = validUnit(value, FLength, strict); + if (!valid_primitive) + return false; + parsedValue2 = new CSSPrimitiveValue(value->fValue, (CSSPrimitiveValue::UnitTypes)value->unit); + } else + parsedValue2 = parsedValue1; + + RefPtr<Pair> pair = new Pair(parsedValue1.release(), parsedValue2.release()); + RefPtr<CSSPrimitiveValue> val = new CSSPrimitiveValue(pair.release()); + if (propId == CSS_PROP__WEBKIT_BORDER_RADIUS) { + const int properties[4] = { CSS_PROP__WEBKIT_BORDER_TOP_RIGHT_RADIUS, + CSS_PROP__WEBKIT_BORDER_TOP_LEFT_RADIUS, + CSS_PROP__WEBKIT_BORDER_BOTTOM_LEFT_RADIUS, + CSS_PROP__WEBKIT_BORDER_BOTTOM_RIGHT_RADIUS }; + for (int i = 0; i < 4; i++) + addProperty(properties[i], val.get(), important); + } else + addProperty(propId, val.release(), important); + return true; + } + case CSS_PROP_OUTLINE_OFFSET: + valid_primitive = validUnit(value, FLength, strict); + break; + case CSS_PROP_TEXT_SHADOW: // CSS2 property, dropped in CSS2.1, back in CSS3, so treat as CSS3 + case CSS_PROP__WEBKIT_BOX_SHADOW: + if (id == CSS_VAL_NONE) + valid_primitive = true; + else + return parseShadow(propId, important); + break; + case CSS_PROP_OPACITY: + valid_primitive = validUnit(value, FNumber, strict); + break; + case CSS_PROP__WEBKIT_BOX_ALIGN: + if (id == CSS_VAL_STRETCH || id == CSS_VAL_START || id == CSS_VAL_END || + id == CSS_VAL_CENTER || id == CSS_VAL_BASELINE) + valid_primitive = true; + break; + case CSS_PROP__WEBKIT_BOX_DIRECTION: + if (id == CSS_VAL_NORMAL || id == CSS_VAL_REVERSE) + valid_primitive = true; + break; + case CSS_PROP__WEBKIT_BOX_LINES: + if (id == CSS_VAL_SINGLE || id == CSS_VAL_MULTIPLE) + valid_primitive = true; + break; + case CSS_PROP__WEBKIT_BOX_ORIENT: + if (id == CSS_VAL_HORIZONTAL || id == CSS_VAL_VERTICAL || + id == CSS_VAL_INLINE_AXIS || id == CSS_VAL_BLOCK_AXIS) + valid_primitive = true; + break; + case CSS_PROP__WEBKIT_BOX_PACK: + if (id == CSS_VAL_START || id == CSS_VAL_END || + id == CSS_VAL_CENTER || id == CSS_VAL_JUSTIFY) + valid_primitive = true; + break; + case CSS_PROP__WEBKIT_BOX_FLEX: + valid_primitive = validUnit(value, FNumber, strict); + break; + case CSS_PROP__WEBKIT_BOX_FLEX_GROUP: + case CSS_PROP__WEBKIT_BOX_ORDINAL_GROUP: + valid_primitive = validUnit(value, FInteger|FNonNeg, true); + break; + case CSS_PROP__WEBKIT_BOX_SIZING: + valid_primitive = id == CSS_VAL_BORDER_BOX || id == CSS_VAL_CONTENT_BOX; + break; + case CSS_PROP__WEBKIT_MARQUEE: { + const int properties[5] = { CSS_PROP__WEBKIT_MARQUEE_DIRECTION, CSS_PROP__WEBKIT_MARQUEE_INCREMENT, + CSS_PROP__WEBKIT_MARQUEE_REPETITION, + CSS_PROP__WEBKIT_MARQUEE_STYLE, CSS_PROP__WEBKIT_MARQUEE_SPEED }; + return parseShorthand(propId, properties, 5, important); + } + case CSS_PROP__WEBKIT_MARQUEE_DIRECTION: + if (id == CSS_VAL_FORWARDS || id == CSS_VAL_BACKWARDS || id == CSS_VAL_AHEAD || + id == CSS_VAL_REVERSE || id == CSS_VAL_LEFT || id == CSS_VAL_RIGHT || id == CSS_VAL_DOWN || + id == CSS_VAL_UP || id == CSS_VAL_AUTO) + valid_primitive = true; + break; + case CSS_PROP__WEBKIT_MARQUEE_INCREMENT: + if (id == CSS_VAL_SMALL || id == CSS_VAL_LARGE || id == CSS_VAL_MEDIUM) + valid_primitive = true; + else + valid_primitive = validUnit(value, FLength|FPercent, strict); + break; + case CSS_PROP__WEBKIT_MARQUEE_STYLE: + if (id == CSS_VAL_NONE || id == CSS_VAL_SLIDE || id == CSS_VAL_SCROLL || id == CSS_VAL_ALTERNATE) + valid_primitive = true; + break; + case CSS_PROP__WEBKIT_MARQUEE_REPETITION: + if (id == CSS_VAL_INFINITE) + valid_primitive = true; + else + valid_primitive = validUnit(value, FInteger|FNonNeg, strict); + break; + case CSS_PROP__WEBKIT_MARQUEE_SPEED: + if (id == CSS_VAL_NORMAL || id == CSS_VAL_SLOW || id == CSS_VAL_FAST) + valid_primitive = true; + else + valid_primitive = validUnit(value, FTime|FInteger|FNonNeg, strict); + break; + case CSS_PROP__WEBKIT_USER_DRAG: // auto | none | element + if (id == CSS_VAL_AUTO || id == CSS_VAL_NONE || id == CSS_VAL_ELEMENT) + valid_primitive = true; + break; + case CSS_PROP__WEBKIT_USER_MODIFY: // read-only | read-write + if (id == CSS_VAL_READ_ONLY || id == CSS_VAL_READ_WRITE || id == CSS_VAL_READ_WRITE_PLAINTEXT_ONLY) + valid_primitive = true; + break; + case CSS_PROP__WEBKIT_USER_SELECT: // auto | none | text + if (id == CSS_VAL_AUTO || id == CSS_VAL_NONE || id == CSS_VAL_TEXT) + valid_primitive = true; + break; + case CSS_PROP_TEXT_OVERFLOW: // clip | ellipsis + if (id == CSS_VAL_CLIP || id == CSS_VAL_ELLIPSIS) + valid_primitive = true; + break; + case CSS_PROP__WEBKIT_TRANSFORM: + if (id == CSS_VAL_NONE) + valid_primitive = true; + else { + PassRefPtr<CSSValue> val = parseTransform(); + if (val) { + addProperty(propId, val, important); + return true; + } + return false; + } + break; + case CSS_PROP__WEBKIT_TRANSFORM_ORIGIN: + case CSS_PROP__WEBKIT_TRANSFORM_ORIGIN_X: + case CSS_PROP__WEBKIT_TRANSFORM_ORIGIN_Y: { + 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 CSS_PROP__WEBKIT_TRANSITION_DURATION: + case CSS_PROP__WEBKIT_TRANSITION_REPEAT_COUNT: + case CSS_PROP__WEBKIT_TRANSITION_TIMING_FUNCTION: + case CSS_PROP__WEBKIT_TRANSITION_PROPERTY: { + RefPtr<CSSValue> val; + if (parseTransitionProperty(propId, val)) { + addProperty(propId, val.release(), important); + return true; + } + return false; + } + case CSS_PROP__WEBKIT_MARGIN_COLLAPSE: { + const int properties[2] = { CSS_PROP__WEBKIT_MARGIN_TOP_COLLAPSE, + CSS_PROP__WEBKIT_MARGIN_BOTTOM_COLLAPSE }; + if (num == 1) { + ShorthandScope scope(this, CSS_PROP__WEBKIT_MARGIN_COLLAPSE); + if (!parseValue(properties[0], important)) + return false; + CSSValue* value = parsedProperties[numParsedProperties-1]->value(); + addProperty(properties[1], value, important); + return true; + } + else if (num == 2) { + ShorthandScope scope(this, CSS_PROP__WEBKIT_MARGIN_COLLAPSE); + if (!parseValue(properties[0], important) || !parseValue(properties[1], important)) + return false; + return true; + } + return false; + } + case CSS_PROP__WEBKIT_MARGIN_TOP_COLLAPSE: + case CSS_PROP__WEBKIT_MARGIN_BOTTOM_COLLAPSE: + if (id == CSS_VAL_COLLAPSE || id == CSS_VAL_SEPARATE || id == CSS_VAL_DISCARD) + valid_primitive = true; + break; + case CSS_PROP_TEXT_LINE_THROUGH_MODE: + case CSS_PROP_TEXT_OVERLINE_MODE: + case CSS_PROP_TEXT_UNDERLINE_MODE: + if (id == CSS_VAL_CONTINUOUS || id == CSS_VAL_SKIP_WHITE_SPACE) + valid_primitive = true; + break; + case CSS_PROP_TEXT_LINE_THROUGH_STYLE: + case CSS_PROP_TEXT_OVERLINE_STYLE: + case CSS_PROP_TEXT_UNDERLINE_STYLE: + if (id == CSS_VAL_NONE || id == CSS_VAL_SOLID || id == CSS_VAL_DOUBLE || + id == CSS_VAL_DASHED || id == CSS_VAL_DOT_DASH || id == CSS_VAL_DOT_DOT_DASH || + id == CSS_VAL_WAVE) + valid_primitive = true; + break; + case CSS_PROP_TEXT_LINE_THROUGH_WIDTH: + case CSS_PROP_TEXT_OVERLINE_WIDTH: + case CSS_PROP_TEXT_UNDERLINE_WIDTH: + if (id == CSS_VAL_AUTO || id == CSS_VAL_NORMAL || id == CSS_VAL_THIN || + id == CSS_VAL_MEDIUM || id == CSS_VAL_THICK) + valid_primitive = true; + else + valid_primitive = !id && validUnit(value, FNumber|FLength|FPercent, strict); + break; + case CSS_PROP_RESIZE: // none | both | horizontal | vertical | auto + if (id == CSS_VAL_NONE || id == CSS_VAL_BOTH || id == CSS_VAL_HORIZONTAL || id == CSS_VAL_VERTICAL || id == CSS_VAL_AUTO) + valid_primitive = true; + break; + case CSS_PROP__WEBKIT_COLUMN_COUNT: + if (id == CSS_VAL_AUTO) + valid_primitive = true; + else + valid_primitive = !id && validUnit(value, FInteger | FNonNeg, false); + break; + case CSS_PROP__WEBKIT_COLUMN_GAP: // normal | <length> + if (id == CSS_VAL_NORMAL) + valid_primitive = true; + else + valid_primitive = validUnit(value, FLength, strict); + break; + case CSS_PROP__WEBKIT_COLUMN_WIDTH: // auto | <length> + if (id == CSS_VAL_AUTO) + 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 CSS_PROP__WEBKIT_LINE_CLAMP: + valid_primitive = (!id && validUnit(value, FPercent, false)); + break; + case CSS_PROP__WEBKIT_TEXT_SIZE_ADJUST: + if (id == CSS_VAL_AUTO || id == CSS_VAL_NONE) + valid_primitive = true; + break; + case CSS_PROP__WEBKIT_RTL_ORDERING: + if (id == CSS_VAL_LOGICAL || id == CSS_VAL_VISUAL) + valid_primitive = true; + break; + + case CSS_PROP__WEBKIT_FONT_SIZE_DELTA: // <length> + valid_primitive = validUnit(value, FLength, strict); + break; + + case CSS_PROP__WEBKIT_NBSP_MODE: // normal | space + if (id == CSS_VAL_NORMAL || id == CSS_VAL_SPACE) + valid_primitive = true; + break; + + case CSS_PROP__WEBKIT_LINE_BREAK: // normal | after-white-space + if (id == CSS_VAL_NORMAL || id == CSS_VAL_AFTER_WHITE_SPACE) + valid_primitive = true; + break; + + case CSS_PROP__WEBKIT_MATCH_NEAREST_MAIL_BLOCKQUOTE_COLOR: // normal | match + if (id == CSS_VAL_NORMAL || id == CSS_VAL_MATCH) + valid_primitive = true; + break; + + case CSS_PROP__WEBKIT_HIGHLIGHT: + if (id == CSS_VAL_NONE || value->unit == CSSPrimitiveValue::CSS_STRING) + valid_primitive = true; + break; + + case CSS_PROP__WEBKIT_BORDER_FIT: + if (id == CSS_VAL_BORDER || id == CSS_VAL_LINES) + valid_primitive = true; + break; + + case CSS_PROP__WEBKIT_TEXT_SECURITY: + // disc | circle | square | none | inherit + if (id == CSS_VAL_DISC || id == CSS_VAL_CIRCLE || id == CSS_VAL_SQUARE|| id == CSS_VAL_NONE) + valid_primitive = true; + break; + + case CSS_PROP__WEBKIT_DASHBOARD_REGION: // <dashboard-region> | <dashboard-region> + if (value->unit == Value::Function || id == CSS_VAL_NONE) + return parseDashboardRegions(propId, important); + break; + // End Apple-specific properties + + /* shorthand properties */ + case CSS_PROP_BACKGROUND: + // ['background-color' || 'background-image' || 'background-size' || 'background-repeat' || + // 'background-attachment' || 'background-position'] | inherit + return parseBackgroundShorthand(important); + case CSS_PROP_BORDER: + // [ 'border-width' || 'border-style' || <color> ] | inherit + { + const int properties[3] = { CSS_PROP_BORDER_WIDTH, CSS_PROP_BORDER_STYLE, + CSS_PROP_BORDER_COLOR }; + return parseShorthand(propId, properties, 3, important); + } + case CSS_PROP_BORDER_TOP: + // [ 'border-top-width' || 'border-style' || <color> ] | inherit + { + const int properties[3] = { CSS_PROP_BORDER_TOP_WIDTH, CSS_PROP_BORDER_TOP_STYLE, + CSS_PROP_BORDER_TOP_COLOR}; + return parseShorthand(propId, properties, 3, important); + } + case CSS_PROP_BORDER_RIGHT: + // [ 'border-right-width' || 'border-style' || <color> ] | inherit + { + const int properties[3] = { CSS_PROP_BORDER_RIGHT_WIDTH, CSS_PROP_BORDER_RIGHT_STYLE, + CSS_PROP_BORDER_RIGHT_COLOR }; + return parseShorthand(propId, properties, 3, important); + } + case CSS_PROP_BORDER_BOTTOM: + // [ 'border-bottom-width' || 'border-style' || <color> ] | inherit + { + const int properties[3] = { CSS_PROP_BORDER_BOTTOM_WIDTH, CSS_PROP_BORDER_BOTTOM_STYLE, + CSS_PROP_BORDER_BOTTOM_COLOR }; + return parseShorthand(propId, properties, 3, important); + } + case CSS_PROP_BORDER_LEFT: + // [ 'border-left-width' || 'border-style' || <color> ] | inherit + { + const int properties[3] = { CSS_PROP_BORDER_LEFT_WIDTH, CSS_PROP_BORDER_LEFT_STYLE, + CSS_PROP_BORDER_LEFT_COLOR }; + return parseShorthand(propId, properties, 3, important); + } + case CSS_PROP_OUTLINE: + // [ 'outline-color' || 'outline-style' || 'outline-width' ] | inherit + { + const int properties[3] = { CSS_PROP_OUTLINE_WIDTH, CSS_PROP_OUTLINE_STYLE, + CSS_PROP_OUTLINE_COLOR }; + return parseShorthand(propId, properties, 3, important); + } + case CSS_PROP_BORDER_COLOR: + // <color>{1,4} | inherit + { + const int properties[4] = { CSS_PROP_BORDER_TOP_COLOR, CSS_PROP_BORDER_RIGHT_COLOR, + CSS_PROP_BORDER_BOTTOM_COLOR, CSS_PROP_BORDER_LEFT_COLOR }; + return parse4Values(propId, properties, important); + } + case CSS_PROP_BORDER_WIDTH: + // <border-width>{1,4} | inherit + { + const int properties[4] = { CSS_PROP_BORDER_TOP_WIDTH, CSS_PROP_BORDER_RIGHT_WIDTH, + CSS_PROP_BORDER_BOTTOM_WIDTH, CSS_PROP_BORDER_LEFT_WIDTH }; + return parse4Values(propId, properties, important); + } + case CSS_PROP_BORDER_STYLE: + // <border-style>{1,4} | inherit + { + const int properties[4] = { CSS_PROP_BORDER_TOP_STYLE, CSS_PROP_BORDER_RIGHT_STYLE, + CSS_PROP_BORDER_BOTTOM_STYLE, CSS_PROP_BORDER_LEFT_STYLE }; + return parse4Values(propId, properties, important); + } + case CSS_PROP_MARGIN: + // <margin-width>{1,4} | inherit + { + const int properties[4] = { CSS_PROP_MARGIN_TOP, CSS_PROP_MARGIN_RIGHT, + CSS_PROP_MARGIN_BOTTOM, CSS_PROP_MARGIN_LEFT }; + return parse4Values(propId, properties, important); + } + case CSS_PROP_PADDING: + // <padding-width>{1,4} | inherit + { + const int properties[4] = { CSS_PROP_PADDING_TOP, CSS_PROP_PADDING_RIGHT, + CSS_PROP_PADDING_BOTTOM, CSS_PROP_PADDING_LEFT }; + return parse4Values(propId, properties, important); + } + case CSS_PROP_FONT: + // [ [ 'font-style' || 'font-variant' || 'font-weight' ]? 'font-size' [ / 'line-height' ]? + // 'font-family' ] | caption | icon | menu | message-box | small-caption | status-bar | inherit + if (id >= CSS_VAL_CAPTION && id <= CSS_VAL_STATUS_BAR) + valid_primitive = true; + else + return parseFont(important); + break; + case CSS_PROP_LIST_STYLE: + { + const int properties[3] = { CSS_PROP_LIST_STYLE_TYPE, CSS_PROP_LIST_STYLE_POSITION, + CSS_PROP_LIST_STYLE_IMAGE }; + return parseShorthand(propId, properties, 3, important); + } + case CSS_PROP__WEBKIT_COLUMNS: { + const int properties[2] = { CSS_PROP__WEBKIT_COLUMN_WIDTH, CSS_PROP__WEBKIT_COLUMN_COUNT }; + return parseShorthand(propId, properties, 2, important); + } + case CSS_PROP__WEBKIT_COLUMN_RULE: { + const int properties[3] = { CSS_PROP__WEBKIT_COLUMN_RULE_WIDTH, CSS_PROP__WEBKIT_COLUMN_RULE_STYLE, + CSS_PROP__WEBKIT_COLUMN_RULE_COLOR }; + return parseShorthand(propId, properties, 3, important); + } + case CSS_PROP__WEBKIT_TEXT_STROKE: { + const int properties[2] = { CSS_PROP__WEBKIT_TEXT_STROKE_WIDTH, CSS_PROP__WEBKIT_TEXT_STROKE_COLOR }; + return parseShorthand(propId, properties, 2, important); + } + case CSS_PROP__WEBKIT_TRANSITION: + return parseTransitionShorthand(important); + case CSS_PROP_INVALID: + return false; + case CSS_PROP_FONT_STRETCH: + case CSS_PROP_PAGE: + case CSS_PROP_TEXT_LINE_THROUGH: + case CSS_PROP_TEXT_OVERLINE: + case CSS_PROP_TEXT_UNDERLINE: + return false; +#if ENABLE(SVG) + default: + return parseSVGValue(propId, important); +#endif + } + + if (valid_primitive) { + if (id != 0) + parsedValue = new CSSPrimitiveValue(id); + else if (value->unit == CSSPrimitiveValue::CSS_STRING) + parsedValue = new CSSPrimitiveValue(domString(value->string), (CSSPrimitiveValue::UnitTypes) value->unit); + else if (value->unit >= CSSPrimitiveValue::CSS_NUMBER && value->unit <= CSSPrimitiveValue::CSS_KHZ) + parsedValue = new CSSPrimitiveValue(value->fValue, (CSSPrimitiveValue::UnitTypes) value->unit); + else if (value->unit >= Value::Q_EMS) + parsedValue = new CSSQuirkPrimitiveValue(value->fValue, CSSPrimitiveValue::CSS_EMS); + valueList->next(); + } + if (parsedValue) { + if (!valueList->current() || inShorthand()) { + addProperty(propId, parsedValue.release(), important); + return true; + } + } + return false; +} + +void CSSParser::addBackgroundValue(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(new CSSValueList()); + list->append(oldlVal); + list->append(rval); + lval = list; + } + } + else + lval = rval; +} + +bool CSSParser::parseBackgroundShorthand(bool important) +{ + // 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 CSS_PROP__KHTML_BACKGROUND_SIZE to the shorthand. + const int properties[] = { CSS_PROP_BACKGROUND_IMAGE, CSS_PROP_BACKGROUND_REPEAT, + CSS_PROP_BACKGROUND_ATTACHMENT, CSS_PROP_BACKGROUND_POSITION, CSS_PROP__WEBKIT_BACKGROUND_CLIP, + CSS_PROP__WEBKIT_BACKGROUND_ORIGIN, CSS_PROP_BACKGROUND_COLOR }; + const int numProperties = sizeof(properties) / sizeof(properties[0]); + + ShorthandScope scope(this, CSS_PROP_BACKGROUND); + + bool parsedProperty[numProperties] = { false }; // compiler will repeat false as necessary + RefPtr<CSSValue> values[numProperties]; + RefPtr<CSSValue> positionYValue; + int i; + + while (valueList->current()) { + Value* val = valueList->current(); + if (val->unit == Value::Operator && val->iValue == ',') { + // We hit the end. Fill in all remaining values with the initial value. + valueList->next(); + for (i = 0; i < numProperties; ++i) { + if (properties[i] == CSS_PROP_BACKGROUND_COLOR && parsedProperty[i]) + // Color is not allowed except as the last item in a list. Reject the entire + // property. + return false; + + if (!parsedProperty[i] && properties[i] != CSS_PROP_BACKGROUND_COLOR) { + addBackgroundValue(values[i], new CSSInitialValue(true)); + if (properties[i] == CSS_PROP_BACKGROUND_POSITION) + addBackgroundValue(positionYValue, new CSSInitialValue(true)); + } + parsedProperty[i] = false; + } + if (!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 (parseBackgroundProperty(properties[i], propId1, propId2, val1, val2)) { + parsedProperty[i] = found = true; + addBackgroundValue(values[i], val1.release()); + if (properties[i] == CSS_PROP_BACKGROUND_POSITION) + addBackgroundValue(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]) { + addBackgroundValue(values[i], new CSSInitialValue(true)); + if (properties[i] == CSS_PROP_BACKGROUND_POSITION) + addBackgroundValue(positionYValue, new CSSInitialValue(true)); + } + } + + // Now add all of the properties we found. + for (i = 0; i < numProperties; i++) { + if (properties[i] == CSS_PROP_BACKGROUND_POSITION) { + addProperty(CSS_PROP_BACKGROUND_POSITION_X, values[i].release(), important); + // it's OK to call positionYValue.release() since we only see CSS_PROP_BACKGROUND_POSITION once + addProperty(CSS_PROP_BACKGROUND_POSITION_Y, positionYValue.release(), important); + } else + addProperty(properties[i], values[i].release(), important); + } + + return true; +} + +void CSSParser::addTransitionValue(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(new CSSValueList()); + list->append(oldVal); + list->append(rval); + lval = list; + } + } + else + lval = rval; +} + +bool CSSParser::parseTransitionShorthand(bool important) +{ + const int properties[] = { CSS_PROP__WEBKIT_TRANSITION_PROPERTY, CSS_PROP__WEBKIT_TRANSITION_DURATION, + CSS_PROP__WEBKIT_TRANSITION_TIMING_FUNCTION, CSS_PROP__WEBKIT_TRANSITION_REPEAT_COUNT }; + const int numProperties = sizeof(properties) / sizeof(properties[0]); + + ShorthandScope scope(this, CSS_PROP__WEBKIT_TRANSITION); + + bool parsedProperty[numProperties] = { false }; // compiler will repeat false as necessary + RefPtr<CSSValue> values[numProperties]; + + int i; + while (valueList->current()) { + Value* val = valueList->current(); + if (val->unit == Value::Operator && val->iValue == ',') { + // We hit the end. Fill in all remaining values with the initial value. + valueList->next(); + for (i = 0; i < numProperties; ++i) { + if (!parsedProperty[i]) + addTransitionValue(values[i], new CSSInitialValue(true)); + parsedProperty[i] = false; + } + if (!valueList->current()) + break; + } + + bool found = false; + for (i = 0; !found && i < numProperties; ++i) { + if (!parsedProperty[i]) { + RefPtr<CSSValue> val; + if (parseTransitionProperty(properties[i], val)) { + parsedProperty[i] = found = true; + addTransitionValue(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]) + addTransitionValue(values[i], new CSSInitialValue(true)); + } + + // 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 (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], new CSSInitialValue(true), 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 : 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 = parsedProperties[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 = parsedProperties[numParsedProperties-2]->value(); + m_implicitShorthand = true; + addProperty(properties[2], value, important); + value = parsedProperties[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 = parsedProperties[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 = new CSSValueList; + + while (Value* val = valueList->current()) { + RefPtr<CSSValue> parsedValue; + if (val->unit == CSSPrimitiveValue::CSS_URI) { + // url + String value = parseURL(domString(val->string)); + parsedValue = new CSSImageValue( + KURL(styleElement->baseURL().deprecatedString(), value.deprecatedString()).string(), styleElement); + } else if (val->unit == Value::Function) { + // attr(X) | counter(X [,Y]) | counters(X, Y, [,Z]) + ValueList *args = val->function->args; + String fname = domString(val->function->name).lower(); + if (!args) + return false; + if (fname == "attr(") { + if (args->size() != 1) + return false; + Value* a = args->current(); + String attrName = domString(a->string); + if (document()->isHTMLDocument()) + attrName = attrName.lower(); + parsedValue = new CSSPrimitiveValue(attrName, CSSPrimitiveValue::CSS_ATTR); + } else if (fname == "counter(") { + parsedValue = parseCounterContent(args, false); + if (!parsedValue) return false; + } else if (fname == "counters(") { + parsedValue = parseCounterContent(args, true); + if (!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 = new CSSPrimitiveValue(domString(val->string), CSSPrimitiveValue::CSS_STRING); + } + if (!parsedValue) + break; + values->append(parsedValue.release()); + valueList->next(); + } + + if (values->length()) { + addProperty(propId, values.release(), important); + valueList->next(); + return true; + } + + return false; +} + +PassRefPtr<CSSValue> CSSParser::parseBackgroundColor() +{ + int id = valueList->current()->id; + if (id == CSS_VAL__WEBKIT_TEXT || (id >= CSS_VAL_AQUA && id <= CSS_VAL_WINDOWTEXT) || id == CSS_VAL_MENU || + (id >= CSS_VAL_GREY && id < CSS_VAL__WEBKIT_TEXT && !strict)) + return new CSSPrimitiveValue(id); + return parseColor(); +} + +bool CSSParser::parseBackgroundImage(RefPtr<CSSValue>& value) +{ + if (valueList->current()->id == CSS_VAL_NONE) { + value = new CSSImageValue(); + return true; + } + if (valueList->current()->unit == CSSPrimitiveValue::CSS_URI) { + String uri = parseURL(domString(valueList->current()->string)); + if (!uri.isEmpty()) + value = new CSSImageValue(KURL(styleElement->baseURL().deprecatedString(), uri.deprecatedString()).string(), + styleElement); + return true; + } + return false; +} + +PassRefPtr<CSSValue> CSSParser::parseBackgroundPositionXY(bool& xFound, bool& yFound) +{ + int id = valueList->current()->id; + if (id == CSS_VAL_LEFT || id == CSS_VAL_TOP || id == CSS_VAL_RIGHT || id == CSS_VAL_BOTTOM || id == CSS_VAL_CENTER) { + int percent = 0; + if (id == CSS_VAL_LEFT || id == CSS_VAL_RIGHT) { + if (xFound) + return 0; + xFound = true; + if (id == CSS_VAL_RIGHT) + percent = 100; + } + else if (id == CSS_VAL_TOP || id == CSS_VAL_BOTTOM) { + if (yFound) + return 0; + yFound = true; + if (id == CSS_VAL_BOTTOM) + percent = 100; + } + else if (id == CSS_VAL_CENTER) + // Center is ambiguous, so we're not sure which position we've found yet, an x or a y. + percent = 50; + return new CSSPrimitiveValue(percent, CSSPrimitiveValue::CSS_PERCENTAGE); + } + if (validUnit(valueList->current(), FPercent|FLength, strict)) + return new CSSPrimitiveValue(valueList->current()->fValue, + (CSSPrimitiveValue::UnitTypes)valueList->current()->unit); + + return 0; +} + +void CSSParser::parseBackgroundPosition(RefPtr<CSSValue>& value1, RefPtr<CSSValue>& value2) +{ + Value* value = 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 = parseBackgroundPositionXY(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 = valueList->next(); + + // First check for the comma. If so, we are finished parsing this value or value pair. + if (value && value->unit == Value::Operator && value->iValue == ',') + value = 0; + + bool value2IsX = false, value2IsY = false; + if (value) { + value2 = parseBackgroundPositionXY(value2IsX, value2IsY); + if (value2) + 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 = new CSSPrimitiveValue(50, CSSPrimitiveValue::CSS_PERCENTAGE); + + if (value1IsY || value2IsX) + value1.swap(value2); +} + +PassRefPtr<CSSValue> CSSParser::parseBackgroundSize() +{ + Value* value = valueList->current(); + CSSPrimitiveValue* parsedValue1; + + if (value->id == CSS_VAL_AUTO) + parsedValue1 = new CSSPrimitiveValue(0, CSSPrimitiveValue::CSS_UNKNOWN); + else { + if (!validUnit(value, FLength|FPercent, strict)) + return 0; + parsedValue1 = new CSSPrimitiveValue(value->fValue, (CSSPrimitiveValue::UnitTypes)value->unit); + } + + CSSPrimitiveValue* parsedValue2 = parsedValue1; + if ((value = valueList->next())) { + if (value->id == CSS_VAL_AUTO) + parsedValue2 = new CSSPrimitiveValue(0, CSSPrimitiveValue::CSS_UNKNOWN); + else { + if (!validUnit(value, FLength|FPercent, strict)) { + delete parsedValue1; + return 0; + } + parsedValue2 = new CSSPrimitiveValue(value->fValue, (CSSPrimitiveValue::UnitTypes)value->unit); + } + } + + Pair* pair = new Pair(parsedValue1, parsedValue2); + return new CSSPrimitiveValue(pair); +} + +bool CSSParser::parseBackgroundProperty(int propId, int& propId1, int& propId2, + RefPtr<CSSValue>& retValue1, RefPtr<CSSValue>& retValue2) +{ + RefPtr<CSSValueList> values; + RefPtr<CSSValueList> values2; + Value* val; + RefPtr<CSSValue> value; + RefPtr<CSSValue> value2; + + bool allowComma = false; + + retValue1 = retValue2 = 0; + propId1 = propId; + propId2 = propId; + if (propId == CSS_PROP_BACKGROUND_POSITION) { + propId1 = CSS_PROP_BACKGROUND_POSITION_X; + propId2 = CSS_PROP_BACKGROUND_POSITION_Y; + } + + while ((val = valueList->current())) { + RefPtr<CSSValue> currValue; + RefPtr<CSSValue> currValue2; + + if (allowComma) { + if (val->unit != Value::Operator || val->iValue != ',') + return false; + valueList->next(); + allowComma = false; + } else { + switch (propId) { + case CSS_PROP_BACKGROUND_ATTACHMENT: + if (val->id == CSS_VAL_SCROLL || val->id == CSS_VAL_FIXED) { + currValue = new CSSPrimitiveValue(val->id); + valueList->next(); + } + break; + case CSS_PROP_BACKGROUND_COLOR: + currValue = parseBackgroundColor(); + if (currValue) + valueList->next(); + break; + case CSS_PROP_BACKGROUND_IMAGE: + if (parseBackgroundImage(currValue)) + valueList->next(); + break; + case CSS_PROP__WEBKIT_BACKGROUND_CLIP: + case CSS_PROP__WEBKIT_BACKGROUND_ORIGIN: + if (val->id == CSS_VAL_BORDER || val->id == CSS_VAL_PADDING || val->id == CSS_VAL_CONTENT) { + currValue = new CSSPrimitiveValue(val->id); + valueList->next(); + } + break; + case CSS_PROP_BACKGROUND_POSITION: + parseBackgroundPosition(currValue, currValue2); + // unlike the other functions, parseBackgroundPosition advances the valueList pointer + break; + case CSS_PROP_BACKGROUND_POSITION_X: { + bool xFound = false, yFound = true; + currValue = parseBackgroundPositionXY(xFound, yFound); + if (currValue) + valueList->next(); + break; + } + case CSS_PROP_BACKGROUND_POSITION_Y: { + bool xFound = true, yFound = false; + currValue = parseBackgroundPositionXY(xFound, yFound); + if (currValue) + valueList->next(); + break; + } + case CSS_PROP__WEBKIT_BACKGROUND_COMPOSITE: + if ((val->id >= CSS_VAL_CLEAR && val->id <= CSS_VAL_PLUS_LIGHTER) || val->id == CSS_VAL_HIGHLIGHT) { + currValue = new CSSPrimitiveValue(val->id); + valueList->next(); + } + break; + case CSS_PROP_BACKGROUND_REPEAT: + if (val->id >= CSS_VAL_REPEAT && val->id <= CSS_VAL_NO_REPEAT) { + currValue = new CSSPrimitiveValue(val->id); + valueList->next(); + } + break; + case CSS_PROP__WEBKIT_BACKGROUND_SIZE: + currValue = parseBackgroundSize(); + if (currValue) + valueList->next(); + break; + } + if (!currValue) + return false; + + if (value && !values) { + values = new CSSValueList(); + values->append(value.release()); + } + + if (value2 && !values2) { + values2 = new CSSValueList(); + 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 the 'background' 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::parseTransitionDuration() +{ + Value* value = valueList->current(); + if (validUnit(value, FTime, strict)) + return new CSSPrimitiveValue(value->fValue, (CSSPrimitiveValue::UnitTypes)value->unit); + return 0; +} + +PassRefPtr<CSSValue> CSSParser::parseTransitionRepeatCount() +{ + Value* value = valueList->current(); + if (value->id == CSS_VAL_INFINITE) + return new CSSPrimitiveValue(value->id); + if (validUnit(value, FInteger|FNonNeg, strict)) + return new CSSPrimitiveValue(value->fValue, (CSSPrimitiveValue::UnitTypes)value->unit); + return 0; +} + +bool CSSParser::parseTimingFunctionValue(ValueList*& args, double& result) +{ + Value* v = args->current(); + if (!validUnit(v, FNumber, 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 != Value::Operator && v->iValue != ',') + return false; + v = args->next(); + return true; +} + +PassRefPtr<CSSValue> CSSParser::parseTransitionTimingFunction() +{ + Value* value = valueList->current(); + if (value->id == CSS_VAL_AUTO || value->id == CSS_VAL_LINEAR || value->id == CSS_VAL_EASE_IN || value->id == CSS_VAL_EASE_OUT || value->id == CSS_VAL_EASE_IN_OUT) + return new CSSPrimitiveValue(value->id); + + // We must be a function. + if (value->unit != Value::Function) + return 0; + + // The only timing function we accept for now is a cubic bezier function. 4 points must be specified. + ValueList* args = value->function->args; + String fname = domString(value->function->name).lower(); + if (fname != "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 new CSSTimingFunctionValue(x1, y1, x2, y2); +} + +PassRefPtr<CSSValue> CSSParser::parseTransitionProperty() +{ + Value* value = valueList->current(); + if (value->unit == CSSPrimitiveValue::CSS_IDENT) { + String str = domString(value->string); + str.lower(); + if (str == "all") + return new CSSPrimitiveValue(cAnimateAll); + if (str == "none") + return new CSSPrimitiveValue(cAnimateNone); + CString propertyName = str.utf8(); + int result = getPropertyID(propertyName.data(), propertyName.length()); + if (result) + return new CSSPrimitiveValue(result); + } + return 0; +} + +bool CSSParser::parseTransitionProperty(int propId, RefPtr<CSSValue>& result) +{ + RefPtr<CSSValueList> values; + Value* val; + RefPtr<CSSValue> value; + bool allowComma = false; + + result = 0; + + while ((val = valueList->current())) { + RefPtr<CSSValue> currValue; + if (allowComma) { + if (val->unit != Value::Operator || val->iValue != ',') + return false; + valueList->next(); + allowComma = false; + } + else { + switch (propId) { + case CSS_PROP__WEBKIT_TRANSITION_DURATION: + currValue = parseTransitionDuration(); + if (currValue) + valueList->next(); + break; + case CSS_PROP__WEBKIT_TRANSITION_REPEAT_COUNT: + currValue = parseTransitionRepeatCount(); + if (currValue) + valueList->next(); + break; + case CSS_PROP__WEBKIT_TRANSITION_TIMING_FUNCTION: + currValue = parseTransitionTimingFunction(); + if (currValue) + valueList->next(); + break; + case CSS_PROP__WEBKIT_TRANSITION_PROPERTY: + currValue = parseTransitionProperty(); + if (currValue) + valueList->next(); + break; + } + + if (!currValue) + return false; + + if (value && !values) { + values = new CSSValueList(); + 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; +} + +#define DASHBOARD_REGION_NUM_PARAMETERS 6 +#define DASHBOARD_REGION_SHORT_NUM_PARAMETERS 2 + +static Value *skipCommaInDashboardRegion (ValueList *args) +{ + if (args->size() == (DASHBOARD_REGION_NUM_PARAMETERS*2-1) || + args->size() == (DASHBOARD_REGION_SHORT_NUM_PARAMETERS*2-1)) { + Value *current = args->current(); + if (current->unit == Value::Operator && current->iValue == ',') + return args->next(); + } + return args->current(); +} + +bool CSSParser::parseDashboardRegions(int propId, bool important) +{ + bool valid = true; + + Value *value = valueList->current(); + + if (value->id == CSS_VAL_NONE) { + if (valueList->next()) + return false; + addProperty(propId, new CSSPrimitiveValue(value->id), important); + return valid; + } + + RefPtr<DashboardRegion> firstRegion = new DashboardRegion; + DashboardRegion* region = 0; + + while (value) { + if (region == 0) { + region = firstRegion.get(); + } else { + RefPtr<DashboardRegion> nextRegion = new DashboardRegion(); + region->m_next = nextRegion; + region = nextRegion.get(); + } + + if (value->unit != Value::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) + ValueList* args = value->function->args; + String fname = domString(value->function->name).lower(); + if (fname != "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. + Value* arg = args->current(); + if (arg->unit != CSSPrimitiveValue::CSS_IDENT) { + valid = false; + break; + } + + region->m_label = domString(arg->string); + + // Second arg is a type. + arg = args->next(); + arg = skipCommaInDashboardRegion (args); + if (arg->unit != CSSPrimitiveValue::CSS_IDENT) { + valid = false; + break; + } + + String geometryType = domString(arg->string).lower(); + if (geometryType == "circle") + region->m_isCircle = true; + else if (geometryType == "rectangle") + region->m_isRectangle = true; + else { + valid = false; + break; + } + + region->m_geometryType = domString(arg->string); + + if (numArgs == DASHBOARD_REGION_SHORT_NUM_PARAMETERS || numArgs == (DASHBOARD_REGION_SHORT_NUM_PARAMETERS*2-1)) { + // This originally used CSS_VAL_INVALID by accident. It might be more logical to use something else. + CSSPrimitiveValue *amount = new CSSPrimitiveValue(CSS_VAL_INVALID); + + 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 == CSS_VAL_AUTO || validUnit(arg, FLength, strict); + if (!valid) + break; + + CSSPrimitiveValue *amount = arg->id == CSS_VAL_AUTO ? + new CSSPrimitiveValue(CSS_VAL_AUTO) : + new CSSPrimitiveValue(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 = valueList->next(); + } + + if (valid) + addProperty(propId, new CSSPrimitiveValue(firstRegion.release()), important); + + return valid; +} + +PassRefPtr<CSSValue> CSSParser::parseCounterContent(ValueList* args, bool counters) +{ + unsigned numArgs = args->size(); + if (counters && numArgs != 3 && numArgs != 5) + return 0; + if (!counters && numArgs != 1 && numArgs != 3) + return 0; + + Value* i = args->current(); + RefPtr<CSSPrimitiveValue> identifier = new CSSPrimitiveValue(domString(i->string), + CSSPrimitiveValue::CSS_STRING); + + RefPtr<CSSPrimitiveValue> separator; + if (!counters) + separator = new CSSPrimitiveValue(String(), CSSPrimitiveValue::CSS_STRING); + else { + i = args->next(); + if (i->unit != Value::Operator || i->iValue != ',') + return 0; + + i = args->next(); + if (i->unit != CSSPrimitiveValue::CSS_STRING) + return 0; + + separator = new CSSPrimitiveValue(domString(i->string), (CSSPrimitiveValue::UnitTypes) i->unit); + } + + RefPtr<CSSPrimitiveValue> listStyle; + i = args->next(); + if (!i) // Make the list style default decimal + listStyle = new CSSPrimitiveValue(CSS_VAL_DECIMAL - CSS_VAL_DISC, CSSPrimitiveValue::CSS_NUMBER); + else { + if (i->unit != Value::Operator || i->iValue != ',') + return 0; + + i = args->next(); + if (i->unit != CSSPrimitiveValue::CSS_IDENT) + return 0; + + short ls = 0; + if (i->id == CSS_VAL_NONE) + ls = CSS_VAL_KATAKANA_IROHA - CSS_VAL_DISC + 1; + else if (i->id >= CSS_VAL_DISC && i->id <= CSS_VAL_KATAKANA_IROHA) + ls = i->id - CSS_VAL_DISC; + else + return 0; + + listStyle = new CSSPrimitiveValue(ls, (CSSPrimitiveValue::UnitTypes) i->unit); + } + + return new CSSPrimitiveValue(new Counter(identifier.release(), listStyle.release(), separator.release())); +} + +bool CSSParser::parseShape(int propId, bool important) +{ + Value *value = valueList->current(); + ValueList *args = value->function->args; + String fname = domString(value->function->name).lower(); + if (fname != "rect(" || !args) + return false; + + // rect(t, r, b, l) || rect(t r b l) + if (args->size() != 4 && args->size() != 7) + return false; + Rect *rect = new Rect(); + bool valid = true; + int i = 0; + Value *a = args->current(); + while (a) { + valid = a->id == CSS_VAL_AUTO || validUnit(a, FLength, strict); + if (!valid) + break; + CSSPrimitiveValue *length = a->id == CSS_VAL_AUTO ? + new CSSPrimitiveValue(CSS_VAL_AUTO) : + new CSSPrimitiveValue(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 == Value::Operator && a->iValue == ',') { + a = args->next(); + } else { + valid = false; + break; + } + } + i++; + } + if (valid) { + addProperty(propId, new CSSPrimitiveValue(rect), important); + valueList->next(); + return true; + } + delete rect; + return false; +} + +// [ 'font-style' || 'font-variant' || 'font-weight' ]? 'font-size' [ / 'line-height' ]? 'font-family' +bool CSSParser::parseFont(bool important) +{ + bool valid = true; + Value *value = valueList->current(); + FontValue *font = new FontValue; + // optional font-style, font-variant and font-weight + while (value) { + int id = value->id; + if (id) { + if (id == CSS_VAL_NORMAL) { + // do nothing, it's the inital value for all three + } else if (id == CSS_VAL_ITALIC || id == CSS_VAL_OBLIQUE) { + if (font->style) + goto invalid; + font->style = new CSSPrimitiveValue(id); + } else if (id == CSS_VAL_SMALL_CAPS) { + if (font->variant) + goto invalid; + font->variant = new CSSPrimitiveValue(id); + } else if (id >= CSS_VAL_BOLD && id <= CSS_VAL_LIGHTER) { + if (font->weight) + goto invalid; + font->weight = new CSSPrimitiveValue(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 = CSS_VAL_100; + else if (weight == 200) + val = CSS_VAL_200; + else if (weight == 300) + val = CSS_VAL_300; + else if (weight == 400) + val = CSS_VAL_400; + else if (weight == 500) + val = CSS_VAL_500; + else if (weight == 600) + val = CSS_VAL_600; + else if (weight == 700) + val = CSS_VAL_700; + else if (weight == 800) + val = CSS_VAL_800; + else if (weight == 900) + val = CSS_VAL_900; + + if (val) + font->weight = new CSSPrimitiveValue(val); + else + valid = false; + } else { + valid = false; + } + if (!valid) + break; + value = valueList->next(); + } + if (!value) + goto invalid; + + // set undefined values to default + if (!font->style) + font->style = new CSSPrimitiveValue(CSS_VAL_NORMAL); + if (!font->variant) + font->variant = new CSSPrimitiveValue(CSS_VAL_NORMAL); + if (!font->weight) + font->weight = new CSSPrimitiveValue(CSS_VAL_NORMAL); + + // now a font size _must_ come + // <absolute-size> | <relative-size> | <length> | <percentage> | inherit + if (value->id >= CSS_VAL_XX_SMALL && value->id <= CSS_VAL_LARGER) + font->size = new CSSPrimitiveValue(value->id); + else if (validUnit(value, FLength|FPercent, strict)) + font->size = new CSSPrimitiveValue(value->fValue, (CSSPrimitiveValue::UnitTypes) value->unit); + value = valueList->next(); + if (!font->size || !value) + goto invalid; + + if (value->unit == Value::Operator && value->iValue == '/') { + // line-height + value = valueList->next(); + if (!value) + goto invalid; + if (value->id == CSS_VAL_NORMAL) { + // default value, nothing to do + } else if (validUnit(value, FNumber|FLength|FPercent, strict)) + font->lineHeight = new CSSPrimitiveValue(value->fValue, (CSSPrimitiveValue::UnitTypes) value->unit); + else + goto invalid; + value = valueList->next(); + if (!value) + goto invalid; + } + + if (!font->lineHeight) + font->lineHeight = new CSSPrimitiveValue(CSS_VAL_NORMAL); + + // font family must come now + font->family = parseFontFamily(); + + if (valueList->current() || !font->family) + goto invalid; + + addProperty(CSS_PROP_FONT, font, important); + return true; + + invalid: + delete font; + return false; +} + +PassRefPtr<CSSValueList> CSSParser::parseFontFamily() +{ + CSSValueList* list = new CSSValueList; + Value* value = valueList->current(); + FontFamilyValue* currFamily = 0; + while (value) { + Value* nextValue = valueList->next(); + bool nextValBreaksFont = !nextValue || + (nextValue->unit == Value::Operator && nextValue->iValue == ','); + bool nextValIsFontName = nextValue && + ((nextValue->id >= CSS_VAL_SERIF && nextValue->id <= CSS_VAL__WEBKIT_BODY) || + (nextValue->unit == CSSPrimitiveValue::CSS_STRING || nextValue->unit == CSSPrimitiveValue::CSS_IDENT)); + + if (value->id >= CSS_VAL_SERIF && value->id <= CSS_VAL__WEBKIT_BODY) { + if (currFamily) { + currFamily->parsedFontName += ' '; + currFamily->parsedFontName += deprecatedString(value->string); + } + else if (nextValBreaksFont || !nextValIsFontName) + list->append(new CSSPrimitiveValue(value->id)); + else + list->append(currFamily = new FontFamilyValue(deprecatedString(value->string))); + } + else if (value->unit == CSSPrimitiveValue::CSS_STRING) { + // Strings never share in a family name. + currFamily = 0; + list->append(new FontFamilyValue(deprecatedString(value->string))); + } + else if (value->unit == CSSPrimitiveValue::CSS_IDENT) { + if (currFamily) { + currFamily->parsedFontName += ' '; + currFamily->parsedFontName += deprecatedString(value->string); + } + else if (nextValBreaksFont || !nextValIsFontName) + list->append(new FontFamilyValue(deprecatedString(value->string))); + else + list->append(currFamily = new FontFamilyValue(deprecatedString(value->string))); + } + else { + break; + } + + if (!nextValue) + break; + + if (nextValBreaksFont) { + value = valueList->next(); + currFamily = 0; + } + else if (nextValIsFontName) + value = nextValue; + else + break; + } + if (!list->length()) { + delete list; + list = 0; + } + return list; +} + +bool CSSParser::parseFontFaceSrc() +{ + RefPtr<CSSValueList> values(new CSSValueList()); + Value* val; + bool expectComma = false; + bool allowFormat = false; + bool failed = false; + RefPtr<CSSFontFaceSrcValue> uriValue; + while ((val = valueList->current())) { + RefPtr<CSSFontFaceSrcValue> parsedValue; + if (val->unit == CSSPrimitiveValue::CSS_URI && !expectComma) { + String value = parseURL(domString(val->string)); + parsedValue = new CSSFontFaceSrcValue(KURL(styleElement->baseURL().deprecatedString(), value.deprecatedString()).string(), false); + uriValue = parsedValue; + allowFormat = true; + expectComma = true; + } else if (val->unit == Value::Function) { + // There are two allowed functions: local() and format(). + String fname = domString(val->function->name).lower(); + ValueList* args = val->function->args; + if (args && args->size() == 1) { + if (fname == "local(" && !expectComma) { + expectComma = true; + allowFormat = false; + Value* a = args->current(); + uriValue.clear(); + parsedValue = new CSSFontFaceSrcValue(domString(a->string), true); + } else if (fname == "format(" && allowFormat && uriValue) { + expectComma = true; + allowFormat = false; + uriValue->setFormat(domString(args->current()->string)); + uriValue.clear(); + valueList->next(); + continue; + } + } + } else if (val->unit == Value::Operator && val->iValue == ',' && expectComma) { + expectComma = false; + allowFormat = false; + uriValue.clear(); + valueList->next(); + continue; + } + + if (parsedValue) + values->append(parsedValue.release()); + else { + failed = true; + break; + } + valueList->next(); + } + + if (values->length() && !failed) { + addProperty(CSS_PROP_SRC, values.release(), important); + valueList->next(); + return true; + } + + return false; +} + +bool CSSParser::parseFontFaceUnicodeRange() +{ + CSSValueList* values = new CSSValueList(); + Value* currentValue; + bool failed = false; + while ((currentValue = valueList->current())) { + if (valueList->current()->unit != CSSPrimitiveValue::CSS_UNICODE_RANGE) { + failed = true; + break; + } + + String rangeString = domString(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(new CSSUnicodeRangeValue(from, to)); + valueList->next(); + } + if (failed || !values->length()) { + delete values; + return false; + } + addProperty(CSS_PROP_UNICODE_RANGE, values, 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.lower()); + if (tc.isValid()) { + rgb = tc.rgb(); + return true; + } + + return false; +} + +bool CSSParser::parseColorParameters(Value* value, int* colorArray, bool parseAlpha) +{ + ValueList* args = value->function->args; + Value* v = args->current(); + // Get the first value + if (!validUnit(v, FInteger | FPercent, true)) + 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 != Value::Operator && v->iValue != ',') + return false; + v = args->next(); + if (!validUnit(v, FInteger | FPercent, 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 != Value::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; +} + +// CSS3 sepcification 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(Value* value, double* colorArray, bool parseAlpha) +{ + ValueList* args = value->function->args; + Value* 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 != Value::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 != Value::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(Value* value) +{ + RGBA32 c = Color::transparent; + if (!parseColorFromValue(value ? value : valueList->current(), c)) + return 0; + return new CSSPrimitiveValue(c); +} + +bool CSSParser::parseColorFromValue(Value* value, RGBA32& c, bool svg) +{ + if (!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, strict)) + return false; + } else if (value->unit == CSSPrimitiveValue::CSS_RGBCOLOR || + value->unit == CSSPrimitiveValue::CSS_IDENT || + (!strict && value->unit == CSSPrimitiveValue::CSS_DIMENSION)) { + if (!CSSParser::parseColor(domString(value->string), c, strict && value->unit == CSSPrimitiveValue::CSS_IDENT)) + return false; + } else if (value->unit == Value::Function && + value->function->args != 0 && + value->function->args->size() == 5 /* rgb + two commas */ && + domString(value->function->name).lower() == "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 == Value::Function && + value->function->args != 0 && + value->function->args->size() == 7 /* rgba + three commas */ && + domString(value->function->name).lower() == "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 == Value::Function && + value->function->args != 0 && + value->function->args->size() == 5 /* hsl + two commas */ && + domString(value->function->name).lower() == "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 == Value::Function && + value->function->args != 0 && + value->function->args->size() == 7 /* hsla + three commas */ && + domString(value->function->name).lower() == "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 = new CSSValueList(); + + // Construct the current shadow value and add it to the list. + values->append(new ShadowValue(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(Value* v) { + RefPtr<CSSPrimitiveValue> val = new CSSPrimitiveValue(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; + Value* val; + while ((val = valueList->current())) { + // Check for a comma break first. + if (val->unit == Value::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 >= CSS_VAL_AQUA && val->id <= CSS_VAL_WINDOWTEXT || val->id == CSS_VAL_MENU || + (val->id >= CSS_VAL__WEBKIT_FOCUS_RING_COLOR && val->id <= CSS_VAL__WEBKIT_TEXT && !strict)); + if (isColor) { + if (!context.allowColor) + return false; + parsedColor = new CSSPrimitiveValue(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()); + } + + valueList->next(); + } + + if (context.allowBreak) { + context.commitValue(); + if (context.values->length()) { + addProperty(propId, context.values.release(), important); + valueList->next(); + return true; + } + } + + return false; +} + +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(CSSImageValue* image) { m_image = image; m_allowNumber = true; } + void commitNumber(Value* v) { + PassRefPtr<CSSPrimitiveValue> val = new CSSPrimitiveValue(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(Value* 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; + } + void commitBorderImage(CSSParser* p, int propId, bool important) { + // We need to clone and repeat values for any omissions. + if (!m_right) { + m_right = new CSSPrimitiveValue(m_top->getDoubleValue(), (CSSPrimitiveValue::UnitTypes)m_top->primitiveType()); + m_bottom = new CSSPrimitiveValue(m_top->getDoubleValue(), (CSSPrimitiveValue::UnitTypes)m_top->primitiveType()); + m_left = new CSSPrimitiveValue(m_top->getDoubleValue(), (CSSPrimitiveValue::UnitTypes)m_top->primitiveType()); + } + if (!m_bottom) { + m_bottom = new CSSPrimitiveValue(m_top->getDoubleValue(), (CSSPrimitiveValue::UnitTypes)m_top->primitiveType()); + m_left = new CSSPrimitiveValue(m_right->getDoubleValue(), (CSSPrimitiveValue::UnitTypes)m_right->primitiveType()); + } + if (!m_left) + m_left = new CSSPrimitiveValue(m_top->getDoubleValue(), (CSSPrimitiveValue::UnitTypes)m_top->primitiveType()); + + // Now build a rect value to hold all four of our primitive values. + RefPtr<Rect> rect = new Rect; + 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 = CSS_VAL_STRETCH; + + // The vertical rule should match the horizontal rule if unspecified. + if (!m_verticalRule) + m_verticalRule = m_horizontalRule; + + // Make our new border image value now and add it as the result. + CSSBorderImageValue* borderImage = new CSSBorderImageValue(m_image, rect.release(), m_horizontalRule, m_verticalRule); + p->addProperty(propId, borderImage, important); + + // 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) { + ValueList 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); + ValueList* oldList = p->valueList; + p->valueList = &newList; + p->parseValue(CSS_PROP_BORDER_WIDTH, important); + p->valueList = oldList; + } + } + + bool m_allowBreak; + bool m_allowNumber; + bool m_allowSlash; + bool m_allowWidth; + bool m_allowRule; + + RefPtr<CSSImageValue> m_image; + + RefPtr<CSSPrimitiveValue> m_top; + RefPtr<CSSPrimitiveValue> m_right; + RefPtr<CSSPrimitiveValue> m_bottom; + RefPtr<CSSPrimitiveValue> m_left; + + Value* m_borderTop; + Value* m_borderRight; + Value* m_borderBottom; + Value* m_borderLeft; + + int m_horizontalRule; + int m_verticalRule; +}; + +bool CSSParser::parseBorderImage(int propId, bool important) +{ + // Look for an image initially. If the first value is not a URI, then we're done. + BorderImageParseContext context; + Value* val = valueList->current(); + if (val->unit != CSSPrimitiveValue::CSS_URI) + return false; + + String uri = parseURL(domString(val->string)); + if (uri.isEmpty()) + return false; + + context.commitImage(new CSSImageValue(KURL(styleElement->baseURL().deprecatedString(), uri.deprecatedString()).string(), + styleElement)); + while ((val = valueList->next())) { + if (context.allowNumber() && validUnit(val, FInteger|FNonNeg|FPercent, true)) { + context.commitNumber(val); + } else if (context.allowSlash() && val->unit == Value::Operator && val->iValue == '/') { + context.commitSlash(); + } else if (context.allowWidth() && + (val->id == CSS_VAL_THIN || val->id == CSS_VAL_MEDIUM || val->id == CSS_VAL_THICK || validUnit(val, FLength, strict))) { + context.commitWidth(val); + } else if (context.allowRule() && + (val->id == CSS_VAL_STRETCH || val->id == CSS_VAL_ROUND || val->id == CSS_VAL_REPEAT)) { + context.commitRule(val->id); + } else { + // Something invalid was encountered. + return false; + } + } + + if (context.allowBreak()) { + // Need to fully commit as a single value. + context.commitBorderImage(this, propId, important); + return true; + } + + return false; +} + +bool CSSParser::parseCounter(int propId, int defaultValue, bool important) +{ + enum { ID, VAL } state = ID; + + RefPtr<CSSValueList> list = new CSSValueList; + RefPtr<CSSPrimitiveValue> counterName; + + while (true) { + Value* val = valueList->current(); + switch (state) { + case ID: + if (val && val->unit == CSSPrimitiveValue::CSS_IDENT) { + counterName = new CSSPrimitiveValue(domString(val->string), CSSPrimitiveValue::CSS_STRING); + state = VAL; + valueList->next(); + continue; + } + break; + case VAL: { + int i = defaultValue; + if (val && val->unit == CSSPrimitiveValue::CSS_NUMBER) { + i = (int)val->fValue; + valueList->next(); + } + + list->append(new CSSPrimitiveValue(new Pair(counterName.release(), + new CSSPrimitiveValue(i, CSSPrimitiveValue::CSS_NUMBER)))); + state = ID; + continue; + } + } + break; + } + + if (list->length() > 0) { + addProperty(propId, list.release(), important); + return true; + } + + return false; +} + +class TransformOperationInfo +{ +public: + TransformOperationInfo(const String& fname) + : m_type(CSSTransformValue::UnknownTransformOperation) + , m_argCount(1) + , m_allowSingleArgument(false) + , m_unit(CSSParser::FUnknown) + { + if (fname == "scale(" || fname == "scaleX(" || fname == "scaleY(") { + m_unit = CSSParser::FNumber; + if (fname == "scale(") + m_type = CSSTransformValue::ScaleTransformOperation; + else if (fname == "scaleX(") + m_type = CSSTransformValue::ScaleXTransformOperation; + else + m_type = CSSTransformValue::ScaleYTransformOperation; + } else if (fname == "rotate(") { + m_type = CSSTransformValue::RotateTransformOperation; + m_unit = CSSParser::FAngle; + } else if (fname == "skew(" || fname == "skewX(" || fname == "skewY(") { + m_unit = CSSParser::FAngle; + if (fname == "skew(") + m_type = CSSTransformValue::SkewTransformOperation; + else if (fname == "skewX(") + m_type = CSSTransformValue::SkewXTransformOperation; + else + m_type = CSSTransformValue::SkewYTransformOperation; + } else if (fname == "translate(" || fname == "translateX(" || fname == "translateY(") { + m_unit = CSSParser::FLength | CSSParser::FPercent; + if (fname == "translate(") + m_type = CSSTransformValue::TranslateTransformOperation; + else if (fname == "translateX(") + m_type = CSSTransformValue::TranslateXTransformOperation; + else + m_type = CSSTransformValue::TranslateYTransformOperation; + } else if (fname == "matrix(") { + m_type = CSSTransformValue::MatrixTransformOperation; + m_argCount = 11; + m_unit = CSSParser::FNumber; + } + + if (fname == "scale(" || fname == "skew(" || fname == "translate(") { + m_allowSingleArgument = true; + m_argCount = 3; + } + } + + CSSTransformValue::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 == CSSTransformValue::UnknownTransformOperation; } + bool hasCorrectArgCount(unsigned argCount) { return m_argCount == argCount || (m_allowSingleArgument && argCount == 1); } + +private: + CSSTransformValue::TransformOperationType m_type; + unsigned m_argCount; + bool m_allowSingleArgument; + CSSParser::Units m_unit; +}; + +PassRefPtr<CSSValue> CSSParser::parseTransform() +{ + if (!valueList) + return 0; + + // The transform is a list of functional primitives that specify transform operations. We collect a list + // of CSSTransformValues, where each value specifies a single operation. + RefPtr<CSSValueList> list = new CSSValueList; + for (Value* value = valueList->current(); value; value = valueList->next()) { + if (value->unit != Value::Function || !value->function) + return 0; + String fname = domString(value->function->name).lower(); + + // Every primitive requires at least one argument. + ValueList* args = value->function->args; + if (!args) + return 0; + + // See if the specified primitive is one we understand. + TransformOperationInfo info(fname); + if (info.unknown()) + return 0; + + if (!info.hasCorrectArgCount(args->size())) + return 0; + + // Create the new CSSTransformValue for this operation and add it to our list. + CSSTransformValue* transformValue = new CSSTransformValue(info.type()); + list->append(transformValue); + + // Snag our values. + Value* 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->addValue(new CSSPrimitiveValue(a->fValue, (CSSPrimitiveValue::UnitTypes) a->unit)); + + a = args->next(); + if (!a) + break; + if (a->unit != Value::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 == CSS_PROP__WEBKIT_TRANSFORM_ORIGIN) { + propId1 = CSS_PROP__WEBKIT_TRANSFORM_ORIGIN_X; + propId2 = CSS_PROP__WEBKIT_TRANSFORM_ORIGIN_Y; + } + + switch (propId) { + case CSS_PROP__WEBKIT_TRANSFORM_ORIGIN: + parseBackgroundPosition(value, value2); + // Unlike the other functions, parseBackgroundPosition advances the valueList pointer + break; + case CSS_PROP__WEBKIT_TRANSFORM_ORIGIN_X: { + bool xFound = false, yFound = true; + value = parseBackgroundPositionXY(xFound, yFound); + if (value) + valueList->next(); + break; + } + case CSS_PROP__WEBKIT_TRANSFORM_ORIGIN_Y: { + bool xFound = true, yFound = false; + value = parseBackgroundPositionXY(xFound, yFound); + if (value) + 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" + +static inline float convertASCIIToFloat(const UChar* characters, unsigned length) +{ + Vector<char, 256> bytes(length + 1); + for (unsigned i = 0; i < length; ++i) + bytes[i] = characters[i]; + bytes[length] = 0; + char* end; + return narrowPrecisionToFloat(kjs_strtod(bytes.data(), &end)); +} + +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: + 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 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->val = convertASCIIToFloat(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--; + + 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; +} + +CSSSelector* CSSParser::sinkFloatingSelector(CSSSelector* selector) +{ + if (selector) { + ASSERT(m_floatingSelectors.contains(selector)); + m_floatingSelectors.remove(selector); + } + return selector; +} + +ValueList* CSSParser::createFloatingValueList() +{ + ValueList* list = new ValueList; + m_floatingValueLists.add(list); + return list; +} + +ValueList* CSSParser::sinkFloatingValueList(ValueList* list) +{ + if (list) { + ASSERT(m_floatingValueLists.contains(list)); + m_floatingValueLists.remove(list); + } + return list; +} + +Function* CSSParser::createFloatingFunction() +{ + Function* function = new Function; + m_floatingFunctions.add(function); + return function; +} + +Function* CSSParser::sinkFloatingFunction(Function* function) +{ + if (function) { + ASSERT(m_floatingFunctions.contains(function)); + m_floatingFunctions.remove(function); + } + return function; +} + +Value& CSSParser::sinkFloatingValue(Value& value) +{ + if (value.unit == Value::Function) { + ASSERT(m_floatingFunctions.contains(value.function)); + m_floatingFunctions.remove(value.function); + } + return value; +} + +MediaQueryExp* CSSParser::createFloatingMediaQueryExp(const AtomicString& mediaFeature, ValueList* 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::sinkFloatingMediaQuery(MediaQuery* mq) +{ + ASSERT(mq == m_floatingMediaQuery); + m_floatingMediaQuery = 0; + return mq; +} + +MediaList* CSSParser::createMediaList() +{ + MediaList* list = new MediaList; + m_parsedStyleObjects.append(list); + return list; +} + +CSSRule* CSSParser::createCharsetRule(const ParseString& charset) +{ + if (!styleElement) + return 0; + if (!styleElement->isCSSStyleSheet()) + return 0; + CSSCharsetRule* rule = new CSSCharsetRule(styleElement, domString(charset)); + m_parsedStyleObjects.append(rule); + return rule; +} + +CSSRule* CSSParser::createImportRule(const ParseString& url, MediaList* media) +{ + if (!media) + return 0; + if (!styleElement) + return 0; + if (!styleElement->isCSSStyleSheet()) + return 0; + CSSImportRule* rule = new CSSImportRule(styleElement, domString(url), media); + m_parsedStyleObjects.append(rule); + return rule; +} + +CSSRule* CSSParser::createMediaRule(MediaList* media, CSSRuleList* rules) +{ + if (!media) + return 0; + if (!rules) + return 0; + if (!styleElement) + return 0; + if (!styleElement->isCSSStyleSheet()) + return 0; + CSSMediaRule* rule = new CSSMediaRule(styleElement, media, rules); + m_parsedStyleObjects.append(rule); + return rule; +} + +CSSRuleList* CSSParser::createRuleList() +{ + CSSRuleList* list = new CSSRuleList; + m_parsedRuleLists.append(list); + return list; +} + +CSSRule* CSSParser::createStyleRule(CSSSelector* selector) +{ + CSSStyleRule* rule = 0; + if (selector) { + rule = new CSSStyleRule(styleElement); + m_parsedStyleObjects.append(rule); + rule->setSelector(sinkFloatingSelector(selector)); + rule->setDeclaration(new CSSMutableStyleDeclaration(rule, parsedProperties, numParsedProperties)); + } + clearProperties(); + return rule; +} + +CSSRule* CSSParser::createFontFaceRule() +{ + CSSFontFaceRule* rule = new CSSFontFaceRule(styleElement); + m_parsedStyleObjects.append(rule); + rule->setDeclaration(new CSSMutableStyleDeclaration(rule, parsedProperties, numParsedProperties)); + clearProperties(); + return rule; +} + +DeprecatedString deprecatedString(const ParseString& ps) +{ + return DeprecatedString(reinterpret_cast<const DeprecatedChar*>(ps.characters), ps.length); +} + +#define YY_DECL int CSSParser::lex() +#define yyconst const +typedef int yy_state_type; +typedef unsigned YY_CHAR; +// this line makes sure we treat all Unicode chars 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 line below is needed to build the tokenizer with conditon 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" + +} |