cosmic changes

[robtfm]

not to be merged as is, but in case it's useful as a starting point for you in the future.

here i have modifications to support bevy 0.14 with bevy#10193 (cosmic text) cherry picked in.

i added floating cursor, selection management, undo/redo and cut/copy/paste (on a feature flag for clipboard integration - it might be nice to allow some other non-system-clipboard support via resources/events but i don't need it personally).

still plan to add at least some mouse support (probably optional in settings).

[robtfm]

Recording.2024-08-30.142832.mp4

[rparrett]

Lovely, thank you!

I was playing around with this a bit with https://github.com/rparrett/bevy_simple_text_input/tree/bevy_main as a base earlier, but really wasn't liking how it was going. I was referencing https://github.com/tigregalis/bevy_text_editor, but your implementation retaining an Editor seems way nicer.

[robtfm]

it does require copying the buffer (though using the lazy init, only when needed)... but it seems bevy does this internally for TextMeasures already, so maybe it's not so bad.

perhaps cosmic's BufferRef could be extended with a shared Arc<RwLock<Buffer>> variant as well, but i am not really willing to get into that at the moment.

[rparrett]

tigregalis had some ideas over here: pop-os/cosmic-text#285