Bug 219735

Summary: Implement ascent-override, descent-override, and line-gap-override
Product: WebKit Reporter: Tobi Reif <tobi>
Component: TextAssignee: Nobody <webkit-unassigned>
Status: NEW    
Severity: Enhancement CC: agafvv, benoit.rouleau, chen.jingan, chrisjshull, chriskirknielsen+wkbugs, fuliang8, gabrien.symons, jesse.bc, karlcow, kizmarh, m.hohengarten, mmaxfield, paul.c.pederson, peter, rasec_1113, rik, tyler, webkit-bug-importer, webkitbugzilla, webkitbugzilla, webkit
Priority: P2 Keywords: BrowserCompat, InRadar
Version: Other   
Hardware: Unspecified   
OS: Unspecified   
Bug Depends on:    
Bug Blocks: 246579    
Attachments:
Description Flags
the general issue none

Tobi Reif
Reported 2020-12-10 02:39:31 PST
It would be very useful if you could implement ascent-override, descent-override, and line-gap-override. More info: https://bugs.chromium.org/p/chromium/issues/detail?id=800693 (especially comments #20, #30 and #31) https://tobireif.com/non_site_stuff/test_case_for_font_position_report_yet_another_font/ https://www.w3.org/TR/css-fonts-4/#font-metrics-override-desc
Attachments
the general issue (12.17 KB, image/png)
2021-02-15 01:52 PST, Tobi Reif 		no flags
Details
View All Add attachment proposed patch, testcase, etc.
Tobi Reif
Comment 1 2020-12-11 02:31:31 PST
Chrome supports it (tested on MacOS vs Windows).
Radar WebKit Bug Importer
Comment 2 2020-12-17 02:40:18 PST
<rdar://problem/72419793>
Tobi Reif
Comment 3 2021-01-08 03:33:03 PST
Here's one reason why it's important to implement this feature: https://tobireif.com/posts/ensuring_the_correct_vertical_position_of_large_text/ (And there's another reason listed in the post below "Another use case".)
Tobi Reif
Comment 4 2021-02-15 01:52:30 PST
Created attachment 420285 [details] the general issue Given that the issue can be as severe as in the attached screenshot, please consider assigning a high priority to implementing this feature.
Tobi Reif
Comment 5 2021-03-23 03:43:55 PDT
Chrome and Edge support the properties, and they are currently getting implemented in Firefox: https://bugzilla.mozilla.org/show_bug.cgi?id=1681691 I hope that they will get implemented in Safari soon.
Tobi Reif
Comment 6 2021-06-25 03:15:28 PDT
Chrome, Edge, and Firefox support it. Safari now is the only major browser which doesn't support this feature. Please implement it soon.
Rick
Comment 7 2022-06-22 04:03:10 PDT
+1 for Safari implementation!
Fu liang
Comment 8 2022-07-17 18:24:28 PDT
+1 for Safari implementation!
Roel Nieskens
Comment 9 2022-09-05 06:43:43 PDT
+1! Any news on when/if this will land?
Jesse Bennett-Chamberlain
Comment 10 2022-09-05 07:59:23 PDT
+1 these properties (along with size-adjust) would be useful for any application that allows users to change their preferred typeface.
Tim Nguyen (:ntim)
Comment 11 2022-10-15 08:41:57 PDT
*** Bug 229726 has been marked as a duplicate of this bug. ***
Cesar
Comment 12 2022-11-30 09:18:29 PST
+1 - Would like to see updates on this
Tyler Sticka
Comment 13 2024-05-15 12:54:34 PDT
+1 Would love to see this happen!
Gabrien Symons
Comment 14 2024-08-20 07:26:33 PDT
+1 to have in Safari!
m.hohengarten
Comment 15 2024-12-03 01:49:15 PST
+1 I'd love to see this 3 years old standard feature on every other browser engine (Blink/Geko supports it since 2021) becoming a standard in all browser engines.
paul.c.pederson
Comment 16 2025-04-21 10:33:39 PDT
Believe it or not the lack of support for this feature in safari is costing us thousands of dollars. @Tim Nguyen (:ntim) is there any way we could get this moved up in the team's queue?
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