lsp-ui

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lsp-ui-imenu is super nice.

Some of its bindings are a bit off compared to, for example, occur mode or xref (which also have differences between each other...). Or at the very least they surprised me enough that I checked out its keymap:

• RET should visit the location (instead of M-RET)
• "o" should display the file in the other window (like RET does now)
• "g" should refresh imenu (like "r" does now)
• using n/p to navigate could be supported on top of C-n/C-p

This is what I have now for lsp-ui-imenu:

(use-package lsp-ui
  :bind
  (:map lsp-ui-imenu-mode-map
        ;; Use bindings that are closer to occur-mode...
        ("n" . next-line)
        ("p" . previous-line)
        ("o" . lsp-ui-imenu--view)
        ("g" . lsp-ui-imenu--refresh)
        ("<return>" . lsp-ui-imenu--visit))
  :custom
  ;; more code here)

The only breaking change is M-RET vs RET. The others can be added to the existing bindings with no conflict.

Finally, when displaying the window, it shouldn't call display-buffer-in-side-window directly. I have side windows with 0.4 size (for 40% of the screen) but if I display imenu first then next side windows are narrower than usual because lsp-ui-imenu already set a different size. And I cannot re-position the window via display-buffer-alist either.