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Bug 939901 part 6: Calculate the intrinsic min-width of a multi-line flex container by assuming a wrap between each flex item. r=mats
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@ -2908,7 +2908,12 @@ nsFlexContainerFrame::GetMinWidth(nsRenderingContext* aRenderingContext)
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nscoord childMinWidth =
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nsLayoutUtils::IntrinsicForContainer(aRenderingContext, e.get(),
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nsLayoutUtils::MIN_WIDTH);
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if (IsAxisHorizontal(axisTracker.GetMainAxis())) {
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// For a horizontal single-line flex container, the intrinsic min width is
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// the sum of its items' min widths.
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// For a vertical flex container, or for a multi-line horizontal flex
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// container, the intrinsic min width is the max of its items' min widths.
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if (IsAxisHorizontal(axisTracker.GetMainAxis()) &&
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NS_STYLE_FLEX_WRAP_NOWRAP == StylePosition()->mFlexWrap) {
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minWidth += childMinWidth;
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} else {
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minWidth = std::max(minWidth, childMinWidth);
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