* bug#44375: Always give a message when flashing the screen
@ 2020-11-01 19:32 積丹尼 Dan Jacobson
2020-11-01 21:26 ` Stefan Kangas
0 siblings, 1 reply; 7+ messages in thread
From: 積丹尼 Dan Jacobson @ 2020-11-01 19:32 UTC (permalink / raw
To: 44375
Always give a message when flashing the screen. See e.g., bug 44340
(Archived rather fast.)
^ permalink raw reply [flat|nested] 7+ messages in thread
* bug#44375: Always give a message when flashing the screen
2020-11-01 19:32 bug#44375: Always give a message when flashing the screen 積丹尼 Dan Jacobson
@ 2020-11-01 21:26 ` Stefan Kangas
2020-11-01 21:48 ` 積丹尼 Dan Jacobson
0 siblings, 1 reply; 7+ messages in thread
From: Stefan Kangas @ 2020-11-01 21:26 UTC (permalink / raw
To: 積丹尼 Dan Jacobson, 44375
積丹尼 Dan Jacobson <jidanni@jidanni.org> writes:
> Always give a message when flashing the screen. See e.g., bug 44340
> (Archived rather fast.)
I have no idea what any of the above means.
What is the bug?
^ permalink raw reply [flat|nested] 7+ messages in thread
* bug#44375: Always give a message when flashing the screen
2020-11-01 21:26 ` Stefan Kangas
@ 2020-11-01 21:48 ` 積丹尼 Dan Jacobson
2020-11-02 16:01 ` Lars Ingebrigtsen
0 siblings, 1 reply; 7+ messages in thread
From: 積丹尼 Dan Jacobson @ 2020-11-01 21:48 UTC (permalink / raw
To: Stefan Kangas; +Cc: 44375
In http://debbugs.gnu.org/cgi/bugreport.cgi?bug=44340 one can see how to
produce a [Show] button.
If the user just clicks it, the screen flashes.
Instead there should be a message printed at the bottom of the screen.
"Don't just click me. I need to be specially clicked: with the middle
button to work."
The above is a case of where flashing should be replaced by a message.
I think most of the cases where emacs just flashes like this, leaving
the user puzzled, have been found already. But there still may be others.
^ permalink raw reply [flat|nested] 7+ messages in thread
* bug#44375: Always give a message when flashing the screen
2020-11-01 21:48 ` 積丹尼 Dan Jacobson
@ 2020-11-02 16:01 ` Lars Ingebrigtsen
2020-11-02 16:24 ` Lars Ingebrigtsen
0 siblings, 1 reply; 7+ messages in thread
From: Lars Ingebrigtsen @ 2020-11-02 16:01 UTC (permalink / raw
To: 積丹尼 Dan Jacobson; +Cc: 44375, Stefan Kangas
積丹尼 Dan Jacobson <jidanni@jidanni.org> writes:
> In http://debbugs.gnu.org/cgi/bugreport.cgi?bug=44340 one can see how to
> produce a [Show] button.
>
> If the user just clicks it, the screen flashes.
I'm now sure what's this is about. Clicking any links (with mouse-1) in
the *Help* buffer here dings my Emacs, and this is the backtrace I'm
getting if I instrument `ding':
Debugger entered--entering a function:
* ding()
pop-mark()
#f(compiled-function () #<bytecode 0xb41ff211354d205>)()
#f(compiled-function () #<bytecode 0x1b178ae04d6865b2>)()
clear-transient-map()
I don't have a recipe to reproduce it, though -- In this Emacs I can do
`M-x describe-face RET default RET' and then mouse-1 on the "faces.el"
button, and Emacs will ding me before taking me to the faces.el file.
--
(domestic pets only, the antidote for overdose, milk.)
bloggy blog: http://lars.ingebrigtsen.no
^ permalink raw reply [flat|nested] 7+ messages in thread
* bug#44375: Always give a message when flashing the screen
2020-11-02 16:01 ` Lars Ingebrigtsen
@ 2020-11-02 16:24 ` Lars Ingebrigtsen
2020-11-02 16:26 ` Lars Ingebrigtsen
0 siblings, 1 reply; 7+ messages in thread
From: Lars Ingebrigtsen @ 2020-11-02 16:24 UTC (permalink / raw
To: 積丹尼 Dan Jacobson; +Cc: 44375, Stefan Kangas
Lars Ingebrigtsen <larsi@gnus.org> writes:
> I don't have a recipe to reproduce it, though -- In this Emacs I can do
> `M-x describe-face RET default RET' and then mouse-1 on the "faces.el"
> button, and Emacs will ding me before taking me to the faces.el file.
I still don't have a recipe -- it seems to happen after having done an
unspecified number of actions in the *Help* buffer. The thing that's
dinging is this, though:
(defun mouse-drag-track (start-event)
[...]
t (lambda ()
(setq track-mouse old-track-mouse)
(setq auto-hscroll-mode auto-hscroll-mode-saved)
(deactivate-mark)
(pop-mark)))))
When the pop-mark is called (mark t) is non-nil. pop-mark is just this:
(defun pop-mark ()
"Pop off mark ring into the buffer's actual mark.
Does not set point. Does nothing if mark ring is empty."
(when mark-ring
(setq mark-ring (nconc mark-ring (list (copy-marker (mark-marker)))))
(set-marker (mark-marker) (car mark-ring))
(set-marker (car mark-ring) nil)
(unless (mark t) (ding))
(pop mark-ring))
(deactivate-mark))
(mark t) is nil here, so it dings.
--
(domestic pets only, the antidote for overdose, milk.)
bloggy blog: http://lars.ingebrigtsen.no
^ permalink raw reply [flat|nested] 7+ messages in thread
* bug#44375: Always give a message when flashing the screen
2020-11-02 16:24 ` Lars Ingebrigtsen
@ 2020-11-02 16:26 ` Lars Ingebrigtsen
2021-09-08 10:22 ` Lars Ingebrigtsen
0 siblings, 1 reply; 7+ messages in thread
From: Lars Ingebrigtsen @ 2020-11-02 16:26 UTC (permalink / raw
To: 積丹尼 Dan Jacobson; +Cc: 44375, Stefan Kangas
Lars Ingebrigtsen <larsi@gnus.org> writes:
> (defun pop-mark ()
> "Pop off mark ring into the buffer's actual mark.
> Does not set point. Does nothing if mark ring is empty."
> (when mark-ring
> (setq mark-ring (nconc mark-ring (list (copy-marker (mark-marker)))))
> (set-marker (mark-marker) (car mark-ring))
And this is the bit that unsets the mark -- the first entry in mark-ring
is a mark that points to no buffer.
Is it obvious to anybody what's going wrong here? :-)
--
(domestic pets only, the antidote for overdose, milk.)
bloggy blog: http://lars.ingebrigtsen.no
^ permalink raw reply [flat|nested] 7+ messages in thread
end of thread, other threads:[~2021-09-08 10:22 UTC | newest]
Thread overview: 7+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2020-11-01 19:32 bug#44375: Always give a message when flashing the screen 積丹尼 Dan Jacobson
2020-11-01 21:26 ` Stefan Kangas
2020-11-01 21:48 ` 積丹尼 Dan Jacobson
2020-11-02 16:01 ` Lars Ingebrigtsen
2020-11-02 16:24 ` Lars Ingebrigtsen
2020-11-02 16:26 ` Lars Ingebrigtsen
2021-09-08 10:22 ` Lars Ingebrigtsen
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