Org-roam: Cannot split org-roam window

[crbinz]

Description

When I open the org-roam window with C-c n l, emacs will not let me split it (it gives the message Cannot split side window or parent of side window. It would be nice to be able to split this window. If I open the org-roam buffer in an existing window, it allows me to split the window like normal.

Steps to Reproduce

1. M-x org-roam-buffer-toggle-display (or C-c n l)
2. Switch to org-roam buffer
3. Try to split the window vertically with M-2

Expected Results

The window gets split vertically.

Actual Results

The window does not split, emacs displays Cannot split side window or parent of side window.

Environment

- Emacs: GNU Emacs 26.3 (build 1, x86_64-apple-darwin18.2.0, NS appkit-1671.20 Version 10.14.3 (Build 18D109))
 of 2019-09-02

[jethrokuan]

Do you have a particular reason you want to split this window? The org-roam backlinks buffer is currently displayed in what Emacs terms a side window: https://www.gnu.org/software/emacs/manual/html_node/elisp/Side-Windows.html

These windows aren't splittable by default. There's also no reason it has to be a side window, and I feel that this is a decision we might retract on when Org-roam eventually grows to accept more complex workflows.

[crbinz]

Do you have a particular reason you want to split this window?

Just that I often use emacs in full screen on a large monitor, and I find that giving the org-roam buffer an entire side results in a lot of wasted space, for me.