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The issue is that select elements may contain some non-Latin characters that need extra block-size to display than the one line-height calculated by using a Latin font spec in the style. Before this patch, when a control has an unconstrained block-size, we set the element's block-size to one line-height in Reflow(), which is intended to properly initialize `BlockReflowInput::mMinLineHeight` since it uses `line-height:-moz-block-height`. However, this simply prevents the display from choosing a larger block-size after the reflow occurs. Previously, this discrepancy was absorbed by the extra padding present to make select elements the same intrinsic size as buttons, but since we did away with that, we're losing the extra space and the font glyphs get clipped. This patch fixes the issue by carrying the computed line height over to the element's display so that its computed block-size is still unconstrained. This way it can accommodate taller characters in the display text. After this patch, a <select><option> containing non-Latin characters should have the same block-size as <button>, and no characters should be clipped. |
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| .. | ||
| base | ||
| build | ||
| doc | ||
| forms | ||
| generic | ||
| inspector | ||
| ipc | ||
| mathml | ||
| media | ||
| printing | ||
| reftests | ||
| style | ||
| svg | ||
| tables | ||
| tools | ||
| xul | ||
| moz.build | ||