mouse-1 in Customize should respect mouse-1-click-follows-link

mouse-1 in Customize should respect mouse-1-click-follows-link

[Drew Adams]

Click mouse-1 on a link in a Customize buffer that is a link to
another option name or similar. That is, on text between `' that is
highlighted with mouseover (`mouse-face').  The link is followed.

The link should not be followed by `mouse-1' if
`mouse-1-click-follows-link' is nil.  In that case, only clicking
`mouse-2' should follow the link.


In GNU Emacs 22.1.1 (i386-mingw-nt5.1.2600)
 of 2007-06-02 on RELEASE
Windowing system distributor `Microsoft Corp.', version 5.1.2600
configured using `configure --with-gcc (3.4) --cflags -Ic:/gnuwin32/include'

RE: mouse-1 in Customize should respect mouse-1-click-follows-link

[Drew Adams]

What makes this especially bad is that these links (or buttons, if you prefer)
are not indicated as such. The only way to know that there is a link present is
to use mouseover, because there is no highlighting except for `mouse-face'.

This means that you can easily click mouse-1 to move the cursor somewhere and
end up accidentally following a link, even if you have
`mouse-1-click-follows-link' = nil. 

This is a UI no-no.

> From: Drew Adams Sent: Wednesday, December 26, 2007 1:29 PM
> Click mouse-1 on a link in a Customize buffer that is a link to
> another option name or similar. That is, on text between `' that is
> highlighted with mouseover (`mouse-face').  The link is followed.
> 
> The link should not be followed by `mouse-1' if
> `mouse-1-click-follows-link' is nil.  In that case, only clicking
> `mouse-2' should follow the link.
> 
> 
> In GNU Emacs 22.1.1 (i386-mingw-nt5.1.2600)
>  of 2007-06-02 on RELEASE
> Windowing system distributor `Microsoft Corp.', version 5.1.2600
> configured using `configure --with-gcc (3.4) --cflags 
> -Ic:/gnuwin32/include'