bool SizesAttributeParser::parse(CSSParserTokenRange range)
{
// Split on a comma token and parse the result tokens as (media-condition, length) pairs
while (!range.atEnd()) {
const CSSParserToken* mediaConditionStart = &range.peek();
// The length is the last component value before the comma which isn't whitespace or a comment
const CSSParserToken* lengthTokenStart = &range.peek();
const CSSParserToken* lengthTokenEnd = &range.peek();
while (!range.atEnd() && range.peek().type() != CommaToken) {
lengthTokenStart = &range.peek();
range.consumeComponentValue();
lengthTokenEnd = &range.peek();
range.consumeWhitespace();
}
range.consume();
float length;
if (!calculateLengthInPixels(range.makeSubRange(lengthTokenStart, lengthTokenEnd), length))
continue;
RefPtrWillBeRawPtr<MediaQuerySet> mediaCondition = MediaQueryParser::parseMediaCondition(range.makeSubRange(mediaConditionStart, lengthTokenStart));
if (!mediaCondition || !mediaConditionMatches(mediaCondition))
continue;
m_length = length;
m_lengthWasSet = true;
return true;
}
return false;
}
bool SizesAttributeParser::parseMediaConditionAndLength(MediaQueryTokenIterator startToken, MediaQueryTokenIterator endToken)
{
MediaQueryTokenIterator lengthTokenStart;
MediaQueryTokenIterator lengthTokenEnd;
reverseSkipIrrelevantTokens(endToken, startToken);
lengthTokenEnd = endToken;
reverseSkipUntilComponentStart(endToken, startToken);
lengthTokenStart = endToken;
unsigned length;
if (!calculateLengthInPixels(lengthTokenStart, lengthTokenEnd, length))
return false;
RefPtrWillBeRawPtr<MediaQuerySet> mediaCondition = MediaQueryParser::parseMediaCondition(startToken, endToken);
if (mediaCondition && mediaConditionMatches(mediaCondition)) {
m_length = length;
return true;
}
return false;
}
