Ranger open same file existing in other windows will overwrite the existing window

[ztlevi]

Description

If Emacs with split windows，open the same file existing in other windows will overwrite the exsiting window.

Reproduction

• Start Emacs

• split window

• open the same file using dired or ranger

• split windows are merged

Observed behaviour

split windows are mereged

Expected behaviour

Do not merge split windows

[ztlevi]

Found the solution, overwriting the ranger-disable function. We probly should add a custom variable for users to select the behavior, e.g. ranger-merge-opened-buffers-if-existing-in-windows.

(defun ranger-disable ()
    "Interactively disable ranger-mode."
    (interactive)
    (ranger-revert))

[punassuming]

This is an issue only in deer-mode right?

[ztlevi]

Yes, because we probly will not open two ranger buffers at the same time

[punassuming]

It happens and is a use case I need to figure out (two ranger frames). Just to clarify, would you like opening the file just focus the existing buffer window and not close deer?

[ztlevi]

I do like open two deer buffers at the same time. For example, I can do copy pasting files between these two deer buffers.

I've noticed deer can create multiple tabs. But I prefer open multiple deer buffers.

[thanhvg]

I have another issue with current behavior of deer-mode when opening the same file. After the split window is deleted because ranger is opening the same file, do a deer on the buffer to go to deer-mode will trigger a warning:

file changed on disk; really edit the buffer? (y, n, r or C-h)

The buffer is not changed at all. I guess ranger misread the buffer state in this case. And there is no way to get out of this. I find @ztlevi's solution fixed my problem. I am using Spacemacs so it could be Spacemacs's issue, but I doubt it.

Thanks