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-rw-r--r--layout/base/nsCSSRendering.cpp10
1 files changed, 10 insertions, 0 deletions
diff --git a/layout/base/nsCSSRendering.cpp b/layout/base/nsCSSRendering.cpp
index e6e3b5f6f..d5df17020 100644
--- a/layout/base/nsCSSRendering.cpp
+++ b/layout/base/nsCSSRendering.cpp
@@ -5290,6 +5290,16 @@ nsImageRenderer::ComputeIntrinsicSize()
if (haveHeight) {
result.SetHeight(nsPresContext::CSSPixelsToAppUnits(imageIntSize.height));
}
+
+ if (!haveHeight && haveWidth && result.mRatio) {
+ nscoord intrinsicHeight =
+ result.mRatio.Inverted().ApplyTo(imageIntSize.width);
+ result.SetHeight(nsPresContext::CSSPixelsToAppUnits(intrinsicHeight));
+ } else if (haveHeight && !haveWidth && result.mRatio) {
+ nscoord intrinsicWidth = result.mRatio.ApplyTo(imageIntSize.height);
+ result.SetWidth(nsPresContext::CSSPixelsToAppUnits(intrinsicWidth));
+ }
+
break;
}
case eStyleImageType_Element: