1865470 - Support by animation on viewBox attribute

Status: RESOLVED FIXED

(Core :: SVG, enhancement)

Description

[Robert Longson [:longsonr]]

Chrome and Safari both support this despite the specification being ambiguous (See bug 541884 comment 3 and bug 541884 comment 4 and bug 541884 comment 5).

Given there are WPT now we should just make ourselves compatible.

Comment 1

[Robert Longson [:longsonr]]

Attachment: Bug 1865470 - support by animation on viewBox r=emilio

Comment 2

[Robert Longson [:longsonr]]

https://treeherder.mozilla.org/jobs?repo=try&revision=5530bfe519787bba5e2884b500642718f171430f

Comment 3

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/ef4b51874d9f
support by animation on viewBox r=emilio

Comment 4

[Cosmin Sabou [:CosminS]]

https://hg.mozilla.org/mozilla-central/rev/ef4b51874d9f

Comment 5

[Donal Meehan [:dmeehan]]

:longsonr could you consider nominating this for a release note? (Process info)

Comment 6

[Robert Longson [:longsonr]]

Attachment: example of by anumation on viewBox

We now support animating the SVG viewBox attribute using SMIL by animations. by animations are relative to the original value. Other attributes such as lengths and angles already support by but a viewBox consists of four separate values.

See https://svgwg.org/specs/animations/#ByAttribute

Comment 7

[Robert Longson [:longsonr]]

Release Note Request (optional, but appreciated)
[Why is this notable]:

Completes support for animating viewBox attributes via SMIL

[Suggested wording]:

We now support animating the SVG viewBox attribute using SMIL by animations. by animations are animations that are relative to the original value. Other attributes such as lengths and angles already support by but a viewBox consists of four separate values.

[Links (documentation, blog post, etc)]: https://svgwg.org/specs/animations/#ByAttribute see also example attachment in this bug

Comment 8

[Donal Meehan [:dmeehan]]

Thanks, added to the Fx122 nightly release notes, please allow 30 mins for the site to update.
Keeping the relnote-firefox flag as ? to keep it on the radar for inclusion in the final Fx122 release notes