1988793 - Paint and Overflow support for text-decoration-trim

Status: RESOLVED FIXED

(Core :: Layout: Text and Fonts, enhancement)

Description

[Emily McDonough [:alaskanemily]]

This represents the changes specifically to paint and overflow code to support non-zero text-decoration-trim.
This can be implemented right now without any further dependency and before the intricacies of actually calculating this value for each text frame, as at the CSS rendering level this should be quite simple.
Without enabling the pref, this code will always use the default value, which is the same as not implementing text-decoration-trim, so this can be landed first without any problems.
bug 1979915, the original bug, still encompasses the work to calculate what the correct offsets are.

Comment 1

[Emily McDonough [:alaskanemily]]

Attachment: Bug 1988793 - Add trim modifier for text decoration rect calculation and decoration painting

This currently is never set, it will be populated from the geometry of the
frame from which the decoration style comes from in Bug 1979915.

Comment 2

[Pulsebot]

Pushed by [e-mail]:
https://github.com/mozilla-firefox/firefox/commit/c7b82ce2af10
https://hg.mozilla.org/integration/autoland/rev/375900adf04b
Add trim modifier for text decoration rect calculation and decoration painting r=layout-jp-market-reviewers,jfkthame

Comment 3

[Iulian Moraru]

https://hg.mozilla.org/mozilla-central/rev/375900adf04b