[Webkit-unassigned] [Bug 208129] [GTK] Stop using gtk foreign drawing API to style form controls

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=208129

--- Comment #16 from Michael Catanzaro <mcatanzaro at gnome.org> ---
(In reply to Carlos Garcia Campos from comment #14)
> For GTK3 the only solution I see is to bring back the old code and add a new
> setting (useSystemAppearance), disabled by default, that apps can use to
> keep the consistency.

Compromise proposal: do this, but enabled by default, and only for scrollbars. All the web form controls can use Adwaita theme. Scrollbar is going to be more important than form controls since having a non-native scrollbar will look really out of place. The rest is just web content, and it's not expected that web content look native. Then when GTK 4 comes around... well, I don't know what to do for GTK 4, but I think retaining native scrollbar would be enough to avoid most complaints. Maybe we could try moving the scrollbar to the UI process, except when it's actually themed by websites (in which case it has to be in the web process no matter what).

Maybe we could add a config file or some other way of configuring a color scheme on top of Adwaita that Yaru and Granite (and other themes) could use, without creating a completely separate RenderTheme class that would be tough to maintain.

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