Fix shrinking in non strech alignments while retaining legacy behaviour

Summary:
This fixes shrinking of elements which are in a non stretch alignment, but keeps the legacy stretch behaviour in place. Additionally this adds a testcase for ```useLegacyStretchBehaviour```

Fixes #633
Closes https://github.com/facebook/yoga/pull/635

Differential Revision: D6408037

Pulled By: emilsjolander

fbshipit-source-id: 377ab0308dd3a75a148a0af31ab5eb3ffb5b5d83
This commit is contained in:
Lukas Wöhrl 2017-11-27 03:09:47 -08:00 committed by Facebook Github Bot
parent 41da6e3128
commit 1d62848535
1 changed files with 3 additions and 1 deletions

View File

@ -2123,6 +2123,7 @@ static void YGNodelayoutImpl(const YGNodeRef node,
// If the main dimension size isn't known, it is computed based on
// the line length, so there's no more space left to distribute.
bool sizeBasedOnContent = false;
// If we don't measure with exact main dimension we want to ensure we don't violate min and max
if (measureModeMainDim != YGMeasureModeExactly) {
if (!YGFloatIsUndefined(minInnerMainDim) && sizeConsumedOnCurrentLine < minInnerMainDim) {
@ -2137,11 +2138,12 @@ static void YGNodelayoutImpl(const YGNodeRef node,
// space we've used is all space we need. Root node also should be shrunk to minimum
availableInnerMainDim = sizeConsumedOnCurrentLine;
}
sizeBasedOnContent = !node->config->useLegacyStretchBehaviour;
}
}
float remainingFreeSpace = 0;
if (!YGFloatIsUndefined(availableInnerMainDim)) {
if (!sizeBasedOnContent && !YGFloatIsUndefined(availableInnerMainDim)) {
remainingFreeSpace = availableInnerMainDim - sizeConsumedOnCurrentLine;
} else if (sizeConsumedOnCurrentLine < 0) {
// availableInnerMainDim is indefinite which means the node is being sized based on its