[GH-ISSUE #869] Focus callback not called when a form receives focus? #631

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opened 2026-03-04 01:06:37 +03:00 by kerem · 2 comments

kerem commented

2026-03-04 01:06:37 +03:00

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Originally created by @adrianludwin on GitHub (Aug 23, 2023).
Original GitHub issue: https://github.com/rivo/tview/issues/869

Hi, I have a form in a grid layout, and I'd like the form to be highlighted when it has focus. For Lists, I was able to set the Focus/Blur callback to change the background colour, but this didn't seem to work for the Form. I believe this is because, while Box.Focus() calls the callback, Form.Focus() does not.

Would it be possible/advisable to call the callback in the form before passing the focus to the FormItem? After all, Form.HasFocus() returns true if any of its items have focus, so it might make sense for the callback to be called too. But I don't know what the implications of this are, or whether Blur() would be called properly as well.

Originally created by @adrianludwin on GitHub (Aug 23, 2023). Original GitHub issue: https://github.com/rivo/tview/issues/869 Hi, I have a form in a grid layout, and I'd like the form to be highlighted when it has focus. For Lists, I was able to set the Focus/Blur callback to change the background colour, but this didn't seem to work for the Form. I believe this is because, while `Box.Focus()` calls the callback, `Form.Focus()` does not. Would it be possible/advisable to call the callback in the form before passing the focus to the FormItem? After all, `Form.HasFocus()` returns true if any of its items have focus, so it might make sense for the callback to be called too. But I don't know what the implications of this are, or whether Blur() would be called properly as well.

kerem commented

2026-03-04 01:06:38 +03:00

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@carpii commented on GitHub (Aug 25, 2023):

Facing a similar issue with flex too #870

I'll keep mine open for now, just because it contains some sample code to repro

@carpii commented on GitHub (Aug 25, 2023): Facing a similar issue with flex too #870 I'll keep mine open for now, just because it contains some sample code to repro

kerem commented

2026-03-04 01:06:38 +03:00

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@rivo commented on GitHub (Aug 28, 2025):

With the latest commit, the "focus" and "blur" notifications are now invoked for all primitives along the hierarchy (see SetFocusFunc and SetBlurFunc for details). Please have a look and let me know if this solves your problem.

@rivo commented on GitHub (Aug 28, 2025): With the latest commit, the "focus" and "blur" notifications are now invoked for all primitives along the hierarchy (see [`SetFocusFunc`](https://github.com/rivo/tview/blob/f9502cf99cec5166dc89e09faab8ef73c18d1e97/box.go#L453) and [`SetBlurFunc`](https://github.com/rivo/tview/blob/f9502cf99cec5166dc89e09faab8ef73c18d1e97/box.go#L470) for details). Please have a look and let me know if this solves your problem.