[Webkit-unassigned] [Bug 191976] [FreeType] Noto Color Emoji is partially used

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=191976

--- Comment #7 from Michael Catanzaro <mcatanzaro at igalia.com> ---
(In reply to Myles C. Maxfield from comment #5)
> Neither Arial nor sans (Helvetica) support emoji characters, so the cluster
> should end up causing FontCache::systemFallbackForCharacters() to be called.
> That's your opportunity to select the emoji font.
> 
> When investigating this, I would see which of those functions listed above
> is returning the wrong thing.

I think Akira is right, sans (usually DejaVu on Linux) does support emoji (that's the problem) and I don't think any function is necessarily returning the wrong thing. It's just not designed to work.

(In reply to Akira TAGOH from comment #6)
> if none of colored fonts is available on the list of fonts in CSS, then you
> can perform another fallback with "emoji". does it make sense?

No, I still don't understand. Your example shows how to detect if the emoji font supports color, but I'm not sure what you suggest doing with that.

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