At bug 59109, I forgot to fix the overflow computation of floating first letter.
Comment on attachment 649063 [details] [diff] [review] Patch I'm not sure if we check whether the frame has decoration lines actually. If you have some idea to write automated tests for this, let me know it.
Does nsStyleTextReset::CalcDifference cause a reflow style hint in all the cases where the result of this calculation could change?
(In reply to David Baron [:dbaron] from comment #4) > Does nsStyleTextReset::CalcDifference cause a reflow style hint in all the > cases where the result of this calculation could change? Ah, it's good point. Currently, if the line style is changed to/from double or wavy, it returns NS_STYLE_HINT_REFLOW because solid/dotted/dashed are always same thickness. However, there is "-moz-none". I think that nsStyleTextReset::CalcDifference() should returns NS_STYLE_HINT_REFLOW for it or we should include solid underline rect to the overflow rect even if the style is none. I like the former better because the latter is hacky. We may be able to take same mistake in the future. Do you agree?
I think in general we've been taking the opposite approach -- trying to include the underline in the overflow rect (at least for common underline styles) so that we don't have to reflow. Then again, I think Mats was working on supporting a stronger variant of UpdateOverflowArea that might be sufficient here (in addition to repaint).
Created attachment 649949 [details] [diff] [review] Additional Patch So, do you think that this is right approach?
Comment on attachment 649949 [details] [diff] [review] Additional Patch I filed bug 812143 for this.