/* * Copyright (C) 2003 Lars Knoll (knoll@kde.org) * Copyright (C) 2005 Allan Sandfeld Jensen (kde@carewolf.com) * Copyright (C) 2004, 2005, 2006, 2007 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 "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 "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" #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(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 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)) { RefPtrdummyStyleDeclaration = 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(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 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(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; CSSValue *parsedValue = 0; // 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(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: // {1,2} | auto | portrait | landscape | inherit case CSS_PROP_QUOTES: // [ ]+ | 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: // [ | | | 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: // | 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 | | 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: // | auto | inherit if (id == CSS_VAL_AUTO) { valid_primitive = true; break; } // Fall through! case CSS_PROP_BORDER_TOP_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: // | 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: // | inherit case CSS_PROP_BORDER_TOP_COLOR: // | inherit case CSS_PROP_BORDER_RIGHT_COLOR: // | inherit case CSS_PROP_BORDER_BOTTOM_COLOR: // | inherit case CSS_PROP_BORDER_LEFT_COLOR: // | inherit case CSS_PROP_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: { // [,]* [ 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 CSSValueList* list = 0; while (value && value->unit == CSSPrimitiveValue::CSS_URI) { if (!list) list = new CSSValueList; String uri = parseURL(domString(value->string)); Vector 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 delete list; 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 == ','))) { delete list; return false; } value = valueList->next(); // comma } if (list) { if (!value) { // no value after url list (MSIE 5 compatibility) if (list->length() != 1) { delete list; 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; 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: { CSSValue *val1 = 0, *val2 = 0; int propId1, propId2; if (parseBackgroundProperty(propId, propId1, propId2, val1, val2)) { addProperty(propId1, val1, important); if (val2) addProperty(propId2, val2, important); return true; } return false; } case CSS_PROP_LIST_STYLE_IMAGE: // | 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: // | inherit case CSS_PROP_BORDER_TOP_WIDTH: //// | inherit case CSS_PROP_BORDER_RIGHT_WIDTH: // Which is defined as case CSS_PROP_BORDER_BOTTOM_WIDTH: // thin | medium | thick | 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 | | inherit case CSS_PROP_WORD_SPACING: // normal | | 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: // | | inherit case CSS_PROP_PADDING_TOP: //// | inherit case CSS_PROP_PADDING_RIGHT: // Which is defined as case CSS_PROP_PADDING_BOTTOM: // | 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: // | | none | inherit case CSS_PROP_MAX_WIDTH: // | | 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: // | | inherit case CSS_PROP_MIN_WIDTH: // | | 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: // | | | | 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 | // | | 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: // | | auto | inherit case CSS_PROP_WIDTH: // | | 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: // | | auto | inherit case CSS_PROP_LEFT: // | | auto | inherit case CSS_PROP_RIGHT: // | | auto | inherit case CSS_PROP_TOP: // | | auto | inherit case CSS_PROP_MARGIN_TOP: //// | inherit case CSS_PROP_MARGIN_RIGHT: // Which is defined as case CSS_PROP_MARGIN_BOTTOM: // | | 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 | | inherit if (id == CSS_VAL_AUTO) { valid_primitive = true; break; } /* nobreak */ case CSS_PROP_ORPHANS: // | inherit case CSS_PROP_WIDOWS: // | inherit // ### not supported later on valid_primitive = (!id && validUnit(value, FInteger, false)); break; case CSS_PROP_LINE_HEIGHT: // normal | | | | 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: // [ ? ]+ | none | inherit if (id != CSS_VAL_NONE) return parseCounter(propId, 1, important); valid_primitive = true; break; case CSS_PROP_COUNTER_RESET: // [ ? ]+ | none | inherit if (id != CSS_VAL_NONE) return parseCounter(propId, 0, important); valid_primitive = true; break; case CSS_PROP_FONT_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 { 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; valueList->next(); } else delete list; } 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(); /* 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 { CSSValueList* values = new CSSValueList(); Value* val; CSSValue* parsedValue = 0; 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) values->append(parsedValue); else break; valueList->next(); } if (values->length()) { addProperty(propId, values, important); valueList->next(); return true; } delete values; return false; } #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; CSSPrimitiveValue* parsedValue1 = new CSSPrimitiveValue(value->fValue, (CSSPrimitiveValue::UnitTypes)value->unit); CSSPrimitiveValue* parsedValue2 = parsedValue1; if (num == 2) { value = valueList->next(); valid_primitive = validUnit(value, FLength, strict); if (!valid_primitive) { delete parsedValue1; return false; } parsedValue2 = new CSSPrimitiveValue(value->fValue, (CSSPrimitiveValue::UnitTypes)value->unit); } Pair* pair = new Pair(parsedValue1, parsedValue2); CSSPrimitiveValue* val = new CSSPrimitiveValue(pair); 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, important); } else addProperty(propId, val, 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 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: { CSSValue *val1 = 0, *val2 = 0; int propId1, propId2; if (parseTransformOrigin(propId, propId1, propId2, val1, val2)) { addProperty(propId1, val1, important); if (val2) addProperty(propId2, val2, 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: { CSSValue* val = 0; if (parseTransitionProperty(propId, val)) { addProperty(propId, val, 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 | if (id == CSS_VAL_NORMAL) valid_primitive = true; else valid_primitive = validUnit(value, FLength, strict); break; case CSS_PROP__WEBKIT_COLUMN_WIDTH: // auto | 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: // 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: // | 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' || ] | 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' || ] | 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' || ] | 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' || ] | 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' || ] | 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: // {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: // {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: // {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: // {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: // {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, important); return true; } delete parsedValue; } return false; } void CSSParser::addBackgroundValue(CSSValue*& lval, CSSValue* rval) { if (lval) { if (lval->isValueList()) static_cast(lval)->append(rval); else { CSSValue* oldVal = lval; CSSValueList* list = new CSSValueList(); lval = list; list->append(oldVal); list->append(rval); } } 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 CSSValue* values[numProperties] = { 0 }; // compiler will repeat 0 as necessary CSSValue* positionYValue = 0; 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. goto fail; 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]) { CSSValue *val1 = 0, *val2 = 0; int propId1, propId2; if (parseBackgroundProperty(properties[i], propId1, propId2, val1, val2)) { parsedProperty[i] = found = true; addBackgroundValue(values[i], val1); if (properties[i] == CSS_PROP_BACKGROUND_POSITION) addBackgroundValue(positionYValue, val2); } } } // if we didn't find at least one match, this is an // invalid shorthand and we have to ignore it if (!found) goto fail; } // 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], important); addProperty(CSS_PROP_BACKGROUND_POSITION_Y, positionYValue, important); } else addProperty(properties[i], values[i], important); } return true; fail: for (int k = 0; k < numProperties; k++) delete values[k]; delete positionYValue; return false; } void CSSParser::addTransitionValue(CSSValue*& lval, CSSValue* rval) { if (lval) { if (lval->isValueList()) static_cast(lval)->append(rval); else { CSSValue* oldVal = lval; CSSValueList* list = new CSSValueList(); lval = list; list->append(oldVal); list->append(rval); } } 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 CSSValue* values[numProperties] = { 0 }; // compiler will repeat 0 as necessary 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]) { CSSValue* val = 0; if (parseTransitionProperty(properties[i], val)) { parsedProperty[i] = found = true; addTransitionValue(values[i], val); } } } // if we didn't find at least one match, this is an // invalid shorthand and we have to ignore it if (!found) goto fail; } // 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], important); return true; fail: for (int k = 0; k < numProperties; k++) delete values[k]; return false; } 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; } // [ | | | attr(X) | open-quote | close-quote | no-open-quote | no-close-quote ]+ | inherit // in CSS 2.1 this got somewhat reduced: // [ | attr(X) | open-quote | close-quote | no-open-quote | no-close-quote ]+ | inherit bool CSSParser::parseContent(int propId, bool important) { RefPtr values = new CSSValueList; while (Value* val = valueList->current()) { RefPtr 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; } 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(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; } 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(CSSValue*& value1, CSSValue*& value2) { value1 = value2 = 0; 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()) { delete value1; value1 = 0; 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) { // Swap our two values. CSSValue* val = value2; value2 = value1; value1 = val; } } 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, CSSValue*& retValue1, CSSValue*& retValue2) { CSSValueList *values = 0, *values2 = 0; Value* val; CSSValue *value = 0, *value2 = 0; 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())) { CSSValue *currValue = 0, *currValue2 = 0; if (allowComma) { if (val->unit != Value::Operator || val->iValue != ',') goto failed; 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) goto failed; if (value && !values) { values = new CSSValueList(); values->append(value); value = 0; } if (value2 && !values2) { values2 = new CSSValueList(); values2->append(value2); value2 = 0; } if (values) values->append(currValue); else value = currValue; if (currValue2) { if (values2) values2->append(currValue2); else value2 = currValue2; } 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; if (values2 && values2->length()) retValue2 = values2; return true; } if (value) { retValue1 = value; retValue2 = value2; return true; } failed: delete values; delete values2; delete value; delete value2; return false; } CSSValue* CSSParser::parseTransitionDuration() { Value* value = valueList->current(); if (validUnit(value, FTime, strict)) return new CSSPrimitiveValue(value->fValue, (CSSPrimitiveValue::UnitTypes)value->unit); return 0; } 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; } 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); } CSSValue* CSSParser::parseTransitionProperty() { Value* value = valueList->current(); if (value->unit == CSSPrimitiveValue::CSS_IDENT) { DeprecatedString str = deprecatedString(value->string); str.lower(); if (str == "all") return new CSSPrimitiveValue(cAnimateAll); if (str == "none") return new CSSPrimitiveValue(cAnimateNone); int result = getPropertyID(str.ascii(), str.length()); if (result) return new CSSPrimitiveValue(result); } return 0; } bool CSSParser::parseTransitionProperty(int propId, CSSValue*& result) { CSSValueList* values = 0; Value* val; CSSValue* value = 0; bool allowComma = false; result = 0; while ((val = valueList->current())) { CSSValue* currValue = 0; if (allowComma) { if (val->unit != Value::Operator || val->iValue != ',') goto failed; 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) goto failed; if (value && !values) { values = new CSSValueList(); values->append(value); value = 0; } if (values) values->append(currValue); else value = currValue; 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; return true; } if (value) { result = value; return true; } failed: delete values; delete value; 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 firstRegion = new DashboardRegion; DashboardRegion* region = 0; while (value) { if (region == 0) { region = firstRegion.get(); } else { RefPtr 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 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 identifier = new CSSPrimitiveValue(domString(i->string), CSSPrimitiveValue::CSS_STRING); RefPtr 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 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 // | | | | 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; } 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() { CSSValueList* values = new CSSValueList(); Value* val; bool expectComma = false; bool allowFormat = false; bool failed = false; CSSFontFaceSrcValue* parsedValue = 0; CSSFontFaceSrcValue* uriValue = 0; while ((val = valueList->current())) { parsedValue = 0; 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 = 0; parsedValue = new CSSFontFaceSrcValue(domString(a->string), true); } else if (fname == "format(" && allowFormat && uriValue) { expectComma = true; allowFormat = false; uriValue->setFormat(domString(args->current()->string)); uriValue = 0; valueList->next(); continue; } } } else if (val->unit == Value::Operator && val->iValue == ',' && expectComma) { expectComma = false; allowFormat = false; uriValue = 0; valueList->next(); continue; } if (parsedValue) values->append(parsedValue); else { failed = true; break; } valueList->next(); } if (values->length() && !failed) { addProperty(CSS_PROP_SRC, values, important); valueList->next(); return true; } delete values; return false; } 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(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(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(max(0.0, min(1.0, v->fValue)) * 255); } return true; } // CSS3 sepcification defines the format of a HSL color as // hsl(, , ) // and with alpha, the format is // hsla(, , , ) // 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(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; } 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() :values(0), x(0), y(0), blur(0), color(0), 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 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(CSSPrimitiveValue* val) { color = val; allowColor = false; if (allowX) allowBreak = false; else allowBlur = false; } RefPtr values; RefPtr x; RefPtr y; RefPtr blur; RefPtr 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. CSSPrimitiveValue* parsedColor = 0; 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); } 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_image(0), m_top(0), m_right(0), m_bottom(0), m_left(0), 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) { 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.set(val); else if (!m_borderRight) m_borderRight.set(val); else if (!m_borderBottom) m_borderBottom.set(val); else { ASSERT(!m_borderLeft); m_borderLeft.set(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. 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, 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); p->valueList = &newList; p->parseValue(CSS_PROP_BORDER_WIDTH, important); p->valueList = 0; } } bool m_allowBreak; bool m_allowNumber; bool m_allowSlash; bool m_allowWidth; bool m_allowRule; RefPtr m_image; RefPtr m_top; RefPtr m_right; RefPtr m_bottom; RefPtr m_left; OwnPtr m_borderTop; OwnPtr m_borderRight; OwnPtr m_borderBottom; OwnPtr 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 list = new CSSValueList; RefPtr 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 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 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, CSSValue*& value, 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" int CSSParser::lex(void* yylvalWithoutType) { YYSTYPE* yylval = static_cast(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 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 = DeprecatedString((DeprecatedChar*)t, length).toFloat(); 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* CSSParser::createFloatingMediaQueryExpList() { if (m_floatingMediaQueryExpList) { deleteAllValues(*m_floatingMediaQueryExpList); delete m_floatingMediaQueryExpList; } m_floatingMediaQueryExpList = new Vector; return m_floatingMediaQueryExpList; } Vector* CSSParser::sinkFloatingMediaQueryExpList(Vector* l) { ASSERT(l == m_floatingMediaQueryExpList); m_floatingMediaQueryExpList = 0; return l; } MediaQuery* CSSParser::createFloatingMediaQuery(MediaQuery::Restrictor r, const String& mediaType, Vector* 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(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" }