🐞 Suggestion window fails to draw

[nkleemann]

Description

Everytime after using the editor with the suggestion feature for a short period of time (5-15 appereances of the panel), the panel window just doesnt appear anymore, but pressing "TAB" or "ENTER" still inserts suggestions at the cursor.

In the XCode console I get:

Warning: -[NSWindow makeKeyWindow] called on <NSWindow: 0x401330240> windowNumber=151f8 which returned NO from -[NSWindow canBecomeKeyWindow].

This happens for the latest version still, with the new "Suggestion Window Fixes" PR merged.

To Reproduce

1. Use the example with the mock completions for a longer period of time
2. Let the panel appear and disappear 10-20x

Expected Behavior

The suggestions window should always render, and IF something fails to render, the viewmodel should refrain from inserting completions.

Version Information

CodeEditSourceEditor: latest main branch
macOS: 15.5 (24F74)
Xcode: 16.4 (16F6)

Additional Context

No response

Screenshots

No response

[thecoolwinter]

That's really odd, it sounds like the suggestion window is being created but maybe is stuck behind something? I'm not sure what would cause that.

[lucasmotta]

Oh I just noticed this too. And what's weird is that you can still "navigate" the suggestions and pick one, but it does not render:

CleanShot.2025-09-28.at.23.04.38.mp4

(And I got LSP working in this btw, super cool!)

---

And you can see it when it's actually working:
https://github.com/user-attachments/assets/4c24fcce-9d3c-466c-ae86-b19d00db09d0

(I need to fix the insert that's adding an extra .)

[lucasmotta]

@nkleemann it would be great if you could test this PR claude just created - for me it seems to be working fine, even thou I still see the same warning in the logs.