[SVG] SVG updates

[Rumyra]

Acceptance Criteria

• The listed features are documented sufficiently on MDN
• BCD is updated
• Interactive example and data repos are updated if appropriate
• The content has been reviewed as needed

For folks helping with Firefox related documentation

• Set bugs to dev-doc-complete
• Add entry to Firefox release notes if feature is enabled in release
  or
• Add entry to Firefox experimental features page if feature is not yet enabled in release

Features to document

Couple of bugs - one is unshipping https://bugzilla.mozilla.org/show_bug.cgi?id=1388931 the other is d property https://bugzilla.mozilla.org/show_bug.cgi?id=1744599

I know some work has started in removal of SVG docs & d prop has landed on my desk before - so this should just be a case of reading through the issue & making sure docs are removed/up to date + BCD updates

NB d attr is currently in experimental features

[hamishwillee]

For bug 1388931 I think all this needs is BCD note for SVGPathElement.getPathSegAtLength(), release note and experimental features update. There are other APS being removed but no point adding a whole file for a feature that is being removed.

Am confirming in https://bugzilla.mozilla.org/show_bug.cgi?id=1388931#c59 . For now will proceed with assumption I am correct.

TLDR is - I think it is just the following are now hidden behind dom.svg.pathSeg.enabled:

• SVGPathSegList (including .numberOfItems, getItem() and length).
  • Not documented, but is in sidebar for SVGPathElement and also as deprecated API in Web/API/Document_Object_Model
  • This is not in BCD.
  • Do not propose to add to either as it is on the way out. But will mention in release note.
• SVGPathElement.getPathSegAtLength()
  • Note in SVGPathElement that this was removed in SVG spec. No dedicated documented.
  • Is in BCD. Need removal
• SVGAnimatedPathData .pathSegList and .animatedPathSegList
  • not documented in MDN.
  • not in BCD

Status

• BCD - Firefox 97 SVGPathElement.getPathSegAtLength() behind pref browser-compat-data#14497
• Docs - None
• Experimental features- FF97 Relnote/Expr - SVGPathSeg and SVG d attribute #11896
• Release notes - FF97 Relnote/Expr - SVGPathSeg and SVG d attribute #11896
• dev-doc-complete

[hamishwillee]

For bug 1744599: Ship d property and make SVG path d attribute as the presentation attribute this was an experimental feature introduced in FF91 in https://bugzilla.mozilla.org/show_bug.cgi?id=1340422

Looking at this the BCD is a bit messy. We need to update the d property and the path(). There is missing spec info and it is not clear whether it is still "partial".
Other than that it looks like we need to remove experimental feature and add the release note.

• BCD
  • path() - FF97 CSS basic-shape path() function enabled by default browser-compat-data#14498
  • d TBD - not sure yet how to record it. Asking in FF97 CSS basic-shape path() function enabled by default browser-compat-data#14498
• Docs - FF97 SVG path d attribute and path() updates #11903
• Experimental features - note removed in FF97 Relnote/Expr - SVGPathSeg and SVG d attribute #11896
• Release notes - FF97 Relnote/Expr - SVGPathSeg and SVG d attribute #11896
• dev-doc-complete

[Rumyra]

Thanks @hamishwillee - I'm keeping my eye on the BCD for this (even tho it's making my head hurt) :)

[hamishwillee]

Cool. I'm chasing that up. This is pretty much done/on the path to done though.

[Rumyra]

In anticipation I'll close this :)