Support stylus events as mouse events on Wayland

[vbkaisetsu]

Body

What are you proposing?

Support stylus events as mouse events on Wayland.

Why does this matter?

GNOME and Wayland support graphics tablets. GTK processes stylus events as mouse events and exposes pressure and tilt as properties of the mouse event.

However, GPUI ignores Wayland's stylus events, so Zed cannot be used with a graphics tablet.

Are there any examples or context?

Example:

https://github.com/vbkaisetsu/zed/tree/pen-tablet-wayland

Related issues:

• Support touch input #13698
• gpui: Add touch input support for Wayland #64079
• gpui: Report stylus pressure on the mouse events #63250

Possible approach

Process stylus events as mouse events, as GTK does.