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bug#19012: 25.0.50; `help-window-select'
From: |
Drew Adams |
Subject: |
bug#19012: 25.0.50; `help-window-select' |
Date: |
Tue, 11 Nov 2014 06:26:08 -0800 (PST) |
> Who creates the *Help* buffer and who calls `display-buffer' in the
> case at hand?
The usual displayers of *Help*: `C-h f', `C-h v', `C-h m', `C-h b',
... And those do generally use `with-help-window'.
But as I mentioned, `display-buffer' in this case uses the logic
of `special-display':
(add-to-list
'special-display-buffer-names
(list "*Help*" '1on1-display-*Help*-frame
(list (cons 'background-color 1on1-help-frame-background)
(cons 'mouse-color 1on1-help-frame-mouse+cursor-color)
(cons 'cursor-color 1on1-help-frame-mouse+cursor-color)
'(height . 40))))
(defun 1on1-display-*Help*-frame (buf &optional args)
"Display *Help* buffer in its own frame.
`special-display-function' is used to do the actual displaying.
BUF and ARGS are the arguments to `special-display-function'."
(let ((old-ptr-shape (and (boundp 'x-pointer-shape) x-pointer-shape))
return-window)
(when (boundp 'x-pointer-xterm)
(setq x-pointer-shape x-pointer-xterm))
(setq return-window (select-window
(funcall special-display-function buf args)))
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
(raise-frame)
(setq x-pointer-shape old-ptr-shape)
return-window))
^^^^^^^^^^^^^
> > but it's not obvious to me. How is a user supposed to know
> > whether this option applies, i.e., whether "the help window
> > was created by `with-help-window'?
>
> By trial and error, I suppose... [When] the help window
> gets selected in some unintuitive way they can tune the behavior
> using this option.
OK. It doesn't seem to work in the case I presented: *Help* shown
in a dedicated window in a separate frame.
> > say, for value `other', that "if the help window is alone in
> > its frame then it is selected".
>
> I'll do that.
Thanks.
> Indeed. It would be a bug if it didn't get selected.
That was my hope. It does not get selected, even with an option
value of `t'.
- bug#19012: 25.0.50; `help-window-select', Drew Adams, 2014/11/10
- bug#19012: 25.0.50; `help-window-select', martin rudalics, 2014/11/10
- bug#19012: 25.0.50; `help-window-select', Drew Adams, 2014/11/10
- bug#19012: 25.0.50; `help-window-select', martin rudalics, 2014/11/11
- bug#19012: 25.0.50; `help-window-select',
Drew Adams <=
- bug#19012: 25.0.50; `help-window-select', martin rudalics, 2014/11/11
- bug#19012: 25.0.50; `help-window-select', Drew Adams, 2014/11/11
- bug#19012: 25.0.50; `help-window-select', Drew Adams, 2014/11/11
- bug#19012: 25.0.50; `help-window-select', Drew Adams, 2014/11/13
- bug#19012: 25.0.50; `help-window-select', martin rudalics, 2014/11/13
- bug#19012: 25.0.50; `help-window-select', Drew Adams, 2014/11/13
- bug#19012: 25.0.50; `help-window-select', martin rudalics, 2014/11/13
- bug#19012: 25.0.50; `help-window-select', Drew Adams, 2014/11/13
- bug#19012: 25.0.50; `help-window-select', martin rudalics, 2014/11/13
- bug#19012: 25.0.50; `help-window-select', Drew Adams, 2014/11/13