ElDoc box

Install
Usage

This package displays ElDoc documentations in a childframe.

/jessieh/eldoc-frame/media/commit/108403d5f317a51b07679c05f4b0c9641cee9bcf/screenshot.png — Using with eglot in python-mode

Install

Get the file, add to load path, and

(require 'eldoc-box)

Usage

Function

eldoc-box-hover-mode: Show documentation upon hover. Note that you need to enable ElDoc mode for this to work.
eldoc-box-hover-at-point-mode: This minor mode shows doc at point. Don't try to enable both minor mode: you can only enable one in the same time.

Face

eldoc-box-border: Adjust :background of this face for border color.
eldoc-box-body: Adjust :background of this face for background color of childframe.

Variable

eldoc-box-max-pixel-width & eldoc-box-max-pixel-height: Set them according to the screen resolution of your machine.
eldoc-box-only-multi-line: Set this to non-nil and eldoc-box only display multi-line message in childframe. One line messages are left in minibuffer.
eldoc-box-cleanup-interval: After this amount of seconds will eldoc-box attempt to cleanup the childframe. E.g. if it is set to 1, the childframe is cleared 1 second after you moved the point to somewhere else (that doesn't have a doc to show). This doesn't apply to eldoc-box-hover-at-point-mode, in that mode the childframe is cleared as soon as point moves.

Use with eglot

As of writing this README, eglot doesn't have a public mode hook, use this hook:

(add-hook 'eglot--managed-mode-hook #'eldoc-box-hover-mode t)

Help at point hack

If all you need is a "help at point" popup to be used with eglot, here is my hack:

(defun moon-help-at-point ()
  (interactive)
  (when eglot--managed-mode
    (require 'eldoc-box)
    (let ((eldoc-box-position-function #'eldoc-box--default-at-point-position-function))
      (eldoc-box--display
       (eglot--dbind ((Hover) contents range)
           (jsonrpc-request (eglot--current-server-or-lose) :textDocument/hover
                            (eglot--TextDocumentPositionParams))
         (when (seq-empty-p contents) (eglot--error "No hover info here"))
         (eglot--hover-info contents range))))
    (add-hook 'pre-command-hook #'eldoc-box-quit-frame t t)))

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