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Implement Calc for LengthOrPercentageOrAuto

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This commit is contained in:
David Zbarsky 2015-08-11 21:08:05 -04:00
parent 9556141e57
commit cb4d878169
7 changed files with 44 additions and 0 deletions
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10
components/layout/block.rs
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@ -327,8 +327,12 @@ impl CandidateBSizeIterator {
(LengthOrPercentageOrAuto::Percentage(percent), Some(block_container_block_size)) => {
MaybeAuto::Specified(block_container_block_size.scale_by(percent))
}
(LengthOrPercentageOrAuto::Calc(calc), Some(block_container_block_size)) => {
MaybeAuto::Specified(calc.length() + block_container_block_size.scale_by(calc.percentage()))
}
(LengthOrPercentageOrAuto::Percentage(_), None) | (LengthOrPercentageOrAuto::Auto, _) => MaybeAuto::Auto,
(LengthOrPercentageOrAuto::Length(length), _) => MaybeAuto::Specified(length),
(LengthOrPercentageOrAuto::Calc(calc), _) => MaybeAuto::Specified(calc.length()),
};
let max_block_size = match (fragment.style.max_block_size(), block_container_block_size) {
(LengthOrPercentageOrNone::Percentage(percent), Some(block_container_block_size)) =>
@ -1118,6 +1122,12 @@ impl BlockFlow {
let content_block_size = self.fragment.style().content_block_size();
match (content_block_size, containing_block_size) {
(LengthOrPercentageOrAuto::Calc(calc), Some(container_size)) => {
Some(container_size.scale_by(calc.percentage()) + calc.length())
}
(LengthOrPercentageOrAuto::Calc(calc), _) => {
Some(calc.length())
},
(LengthOrPercentageOrAuto::Length(length), _) => Some(length),
(LengthOrPercentageOrAuto::Percentage(percent), Some(container_size)) => {
Some(container_size.scale_by(percent))