Re: menubar Commands Hide Signature vs. mode-line

[Kai.Grossjohann@CS.Uni-Dortmund.DE (Kai Großjohann)]

Lars Magne Ingebrigtsen <larsi@gnus.org> writes:

> At present, they are generated by the `gnus-article-wash-status'
> function, which just returns a string.  The mode line is updated by
> `gnus-set-mode-line'.  I'm guessing that there'll have to be voodoo in
> that function to add these mousey thingies?  Or what?

I don't know, but I think it is enough to just return a propertized
string (with the `help-echo' text property?).

Ah.  Cf the following node in the lispref for Emacs 21:

/----[ Properties in the Mode Line ]
| 
| Properties in the Mode Line
| ---------------------------
| 
|    Starting in Emacs 21, certain text properties are meaningful in the
| mode line.  The `face' property affects the appearance of text; the
| `help-echo' property associate help strings with the text, and
| `local-map' can make the text mouse-sensitive.
| 
|    There are three ways to specify text properties for text in the mode
| line:
| 
|   1. Put a string with the `local-map' property directly into the
|      mode-line data structure.
| 
|   2. Put a `local-map' property on a mode-line %-construct such as
|      `%12b'; then the expansion of the %-construct will have that same
|      text property.
| 
|   3. Use a list containing `:eval FORM' in the mode-line data
|      structure, and make FORM evaluate to a string that has a
|      `local-map' property.
| 
|    You use the `local-map' property to specify a keymap.  Like any
| keymap, it can bind character keys and function keys; but that has no
| effect, since it is impossible to move point into the mode line.  This
| keymap can only take real effect for mouse clicks.
| 
\----


kai
-- 
Simplification good!  Oversimplification bad!  (Larry Wall)