When I'm in Help-mode buffer generated from describe-function or similar command - after placing cursor on clickable filename text I wish to open this file in the same window (ideally I wish I could also kill this help buffer the same time). How can I achieve that?


Here is a push-button function wrapper:

(defun eab/push-button-on-file-same-window ()
  (let ((cwc (current-window-configuration))
        (hb (current-buffer))
        (file? (button-get (button-at (point)) 'help-args)))
     `(lambda ()
        (defun eab/push-button-on-file-same-window-internal ()
          (if (> (length ',file?) 1)
              (let ((cb (current-buffer)))
                (set-window-configuration ,cwc)
                (switch-to-buffer cb)
                (kill-buffer ,hb)))))))
  (call-interactively 'push-button)
  (run-with-timer 0.01 nil 'eab/push-button-on-file-same-window-internal))

It implements required behaviour.

Upd. Removed unnecessary file-exist-p checking. Now it works for C source files.

  • I tried to bind this function to enter like this (define-key button-map (kbd "<RET>") 'eab/push-button-on-file-same-window) and it still opens file in other window, but also showing message Invalid read syntax: "?"
    – sandric
    Jul 20 '16 at 2:14
  • Yes, I've just tested it in emacs 24.3.1 and it does not work. I use emacs 24.5.1 and it works there. I will think it over.
    – artscan
    Jul 20 '16 at 2:24
  • Well, my emacs is
    – sandric
    Jul 20 '16 at 2:44
  • just a quick note - I made it work just changing in help-function-def and help-variable-def function calls of pop-to-buffer to switch-to-buffer. Its looking not very good so I'll wait for other answers though.
    – sandric
    Jul 20 '16 at 3:13
  • I've fixed time: 0.01 instead of 0. Now it works on my emacs
    – artscan
    Jul 21 '16 at 12:17

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