GNU bug report logs - #53170
29.0.50; Can't repetitively click next node button inside Info header line

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From: Juri Linkov <juri <at> linkov.net>
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: luangruo <at> yahoo.com, 53170 <at> debbugs.gnu.org
Subject: bug#53170: 29.0.50; Can't repetitively click next node button inside Info header line
Date: Tue, 11 Jan 2022 20:24:02 +0200

>> > Starting from emacs -Q, say "C-h i m tramp RET", then click the text
>> > that reads "Next: Overview".  As long as you don't move the mouse at
>> > all, you won't be able to click that button again.
>> 
>> I guess this is the case when you click the mouse button too fast?
>> By default, mouse-1-click-follows-link is 450, and Info-link-keymap
>> uses such settings:
>> 
>>     (define-key keymap [mouse-2] 'Info-mouse-follow-link)
>>     (define-key keymap [follow-link] 'mouse-face)
>
> Sorry, I don't understand how these settings explain the issue.
> AFAIU, the 450 msec is the time one need to _hold_ mouse-1 to make
> such a long mouse-1 press be considered as meaning "move point here".
> By contrast, what happens here is that 2 separate mouse-1 clicks, if
> the time between them is too short, seem to have no effect at all:
> Emacs neither follows the link nor does anything else.
>
> So I suspect that something else is at work here, or maybe the effect
> of mouse-1-click-follows-link is not documented accurately enough?
>
> Can you explain the observed behavior in more detail given the above
> defaults, please?  In particular, how come a feature that's
> documented to affect only "click and hold" mouse gestures seems to
> affect double-click?

The second click selects the word.  Could you arrange the Info dir buffer
such that clicking on a menu item opens another Info node, where the second
quickly pressed mouse button is on another menu?  Then you will see the effect.
It selects the word on the menu item, instead of navigating to the node
under the menu item.

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