1224424 - mask-mode must not have a value called 'auto'

Status: RESOLVED FIXED

(Core :: Layout, defect)

Description

[u459114]

Report by dbaron
https://lists.w3.org/Archives/Public/public-fx/2015OctDec/0021.html

In short, mask-mode should not have a value called 'auto' since it makes parsing the mask shorthand ambiguous.

For example,
  mask: url(xxx) auto

You have no idea that this auto means mask-mode:auto or mask-size:auto

Comment 1

[David Baron :dbaron:]

The CSS WG just (a few minutes ago) resolved to rename 'auto' to 'match-source'.

(We also noticed that the definition for SVG images should really say to honor mask-type, not to just do luminance -- but there was discussion about maybe removing mask-type.)

Comment 2

[u459114]

Attachment: MozReview Request: Bug 1224424 - Replace mask-mode:auto keyword by mask-mode:match-source

Review commit: https://reviewboard.mozilla.org/r/36117/diff/#index_header
See other reviews: https://reviewboard.mozilla.org/r/36117/

Comment 3

[u459114]

Change in this patch is very trivial. Waiting for test result.

Comment 4

[David Baron :dbaron:]

Comment on attachment 8722595 [details]
MozReview Request: Bug 1224424 - Replace mask-mode:auto keyword by mask-mode:match-source

https://reviewboard.mozilla.org/r/36117/#review33059

Comment 5

[u459114]

https://hg.mozilla.org/integration/mozilla-inbound/rev/244ab4103b969298cc006d1459de0653344235dd
Bug 1224424 - Replace mask-mode:auto keyword by mask-mode:match-source; r=dbaron

Comment 6

[Wes Kocher (:KWierso) (Not reading bugmail; email directly if needed)]

https://hg.mozilla.org/mozilla-central/rev/244ab4103b96