Q: How to programatically terminate repeat-mode

Q: How to programatically terminate repeat-mode

[T.V Raman]

I have been using repeat-mode to good effect in emacspeak e.g. in the
context of its media player etc.

One issue  I have is that once a command to stop media has been
executed, I'd like the repeat to stop i.e. without me executing
another explicit kbd command like C-g to terminate the repeat. 

How do I do this from lisp?

I'd rather not call keyboard-quit  explicitly -- that sounds like
overkill?



-- 

Thanks,

--Raman(I Search, I Find, I Misplace, I Research)
♉ Id: kg:/m/0285kf1  🦮

-- 

Thanks,

--Raman(I Search, I Find, I Misplace, I Research)
♉ Id: kg:/m/0285kf1  🦮

Re: Q: How to programatically terminate repeat-mode

[Juri Linkov]

> I have been using repeat-mode to good effect in emacspeak e.g. in the
> context of its media player etc.
>
> One issue  I have is that once a command to stop media has been
> executed, I'd like the repeat to stop i.e. without me executing
> another explicit kbd command like C-g to terminate the repeat.

The simplest way is just not to put the property 'repeat-map'
on the symbol of the command that stops media.  Then executing
this command will terminate the repeat.

> How do I do this from lisp?

It's no easy to do the same from Lisp because in repeat-post-hook
the value of 'exitfun' returned from 'set-transient-map' is not
exposed outside.  Maybe the value of 'exitfun' should be stored
in a variable?  Currently 'exitfun' is used only by repeat-exit-timer.

> I'd rather not call keyboard-quit  explicitly -- that sounds like
> overkill?

Or you could put 'repeat-exit-key' on 'unread-command-events'.

Re: Q: How to programatically terminate repeat-mode

[T.V Raman]

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Juri Linkov <juri@linkov.net> writes:

will try your suggestions. Would be nice to have  a simple API to do
this.

>> I have been using repeat-mode to good effect in emacspeak e.g. in the
>> context of its media player etc.
>>
>> One issue  I have is that once a command to stop media has been
>> executed, I'd like the repeat to stop i.e. without me executing
>> another explicit kbd command like C-g to terminate the repeat.
>
> The simplest way is just not to put the property 'repeat-map'
> on the symbol of the command that stops media.  Then executing
> this command will terminate the repeat.
>
>> How do I do this from lisp?
>
> It's no easy to do the same from Lisp because in repeat-post-hook
> the value of 'exitfun' returned from 'set-transient-map' is not
> exposed outside.  Maybe the value of 'exitfun' should be stored
> in a variable?  Currently 'exitfun' is used only by repeat-exit-timer.
>
>> I'd rather not call keyboard-quit  explicitly -- that sounds like
>> overkill?
>
> Or you could put 'repeat-exit-key' on 'unread-command-events'.

-- 

Thanks,

--Raman(I Search, I Find, I Misplace, I Research)
7©4 Id: kg:/m/0285kf1  •0Ü8

Re: Q: How to programatically terminate repeat-mode

[T.V Raman]

Works like a charm, that took less than a minute to implement and
test:-)
T.V Raman writes:
 > Juri Linkov <juri@linkov.net> writes:
 > 
 > will try your suggestions. Would be nice to have  a simple API to do
 > this.
 > 
 > >> I have been using repeat-mode to good effect in emacspeak e.g. in the
 > >> context of its media player etc.
 > >>
 > >> One issue  I have is that once a command to stop media has been
 > >> executed, I'd like the repeat to stop i.e. without me executing
 > >> another explicit kbd command like C-g to terminate the repeat.
 > >
 > > The simplest way is just not to put the property 'repeat-map'
 > > on the symbol of the command that stops media.  Then executing
 > > this command will terminate the repeat.
 > >
 > >> How do I do this from lisp?
 > >
 > > It's no easy to do the same from Lisp because in repeat-post-hook
 > > the value of 'exitfun' returned from 'set-transient-map' is not
 > > exposed outside.  Maybe the value of 'exitfun' should be stored
 > > in a variable?  Currently 'exitfun' is used only by repeat-exit-timer.
 > >
 > >> I'd rather not call keyboard-quit  explicitly -- that sounds like
 > >> overkill?
 > >
 > > Or you could put 'repeat-exit-key' on 'unread-command-events'.
 > 
 > -- 
 > 
 > Thanks,
 > 
 > --Raman(I Search, I Find, I Misplace, I Research)
 > ♉ Id: kg:/m/0285kf1  🦮

-- 

Thanks,

--Raman(I Search, I Find, I Misplace, I Research)
♉ Id: kg:/m/0285kf1  🦮

--

Thanks,

--Raman(I Search, I Find, I Misplace, I Research)
♉ Id: kg:/m/0285kf1  🦮

Re: Q: How to programatically terminate repeat-mode

[T.V Raman]

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Juri Linkov <juri@linkov.net> writes:
Hi,

The suggestion you gave me, ie dont put the repeat property on the
command that stops media works brilliantly --- excpt:

If the media plays to completion while repeat is still active, then the
repeat fails to deactivate. Any ideas on how to handle that?


>> I have been using repeat-mode to good effect in emacspeak e.g. in the
>> context of its media player etc.
>>
>> One issue  I have is that once a command to stop media has been
>> executed, I'd like the repeat to stop i.e. without me executing
>> another explicit kbd command like C-g to terminate the repeat.
>
> The simplest way is just not to put the property 'repeat-map'
> on the symbol of the command that stops media.  Then executing
> this command will terminate the repeat.
>
>> How do I do this from lisp?
>
> It's no easy to do the same from Lisp because in repeat-post-hook
> the value of 'exitfun' returned from 'set-transient-map' is not
> exposed outside.  Maybe the value of 'exitfun' should be stored
> in a variable?  Currently 'exitfun' is used only by repeat-exit-timer.
>
>> I'd rather not call keyboard-quit  explicitly -- that sounds like
>> overkill?
>
> Or you could put 'repeat-exit-key' on 'unread-command-events'.

-- 

Thanks,

--Raman(I Search, I Find, I Misplace, I Research)
7©4 Id: kg:/m/0285kf1  •0Ü8

Re: Q: How to programatically terminate repeat-mode

[T.V Raman]

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"T.V Raman" <raman@google.com> writes:


Answering my own question:

(push 7 unread-command-events)

in the process sentinel  works where I have customized repeat-exit-key
to C-g.

However I needed to explicitly use (push 7 unread-command-events)
rather than the more readable (push repeat-exit-key
unread-command-events)

since unread-command-events doesn't like having a vector pushed onto it.
> Juri Linkov <juri@linkov.net> writes:
> Hi,
>
> The suggestion you gave me, ie dont put the repeat property on the
> command that stops media works brilliantly --- excpt:
>
> If the media plays to completion while repeat is still active, then the
> repeat fails to deactivate. Any ideas on how to handle that?
>
>
>>> I have been using repeat-mode to good effect in emacspeak e.g. in the
>>> context of its media player etc.
>>>
>>> One issue  I have is that once a command to stop media has been
>>> executed, I'd like the repeat to stop i.e. without me executing
>>> another explicit kbd command like C-g to terminate the repeat.
>>
>> The simplest way is just not to put the property 'repeat-map'
>> on the symbol of the command that stops media.  Then executing
>> this command will terminate the repeat.
>>
>>> How do I do this from lisp?
>>
>> It's no easy to do the same from Lisp because in repeat-post-hook
>> the value of 'exitfun' returned from 'set-transient-map' is not
>> exposed outside.  Maybe the value of 'exitfun' should be stored
>> in a variable?  Currently 'exitfun' is used only by repeat-exit-timer.
>>
>>> I'd rather not call keyboard-quit  explicitly -- that sounds like
>>> overkill?
>>
>> Or you could put 'repeat-exit-key' on 'unread-command-events'.

-- 

Thanks,

--Raman(I Search, I Find, I Misplace, I Research)
7©4 Id: kg:/m/0285kf1  •0Ü8

Re: Q: How to programatically terminate repeat-mode

[Juri Linkov]

> However I needed to explicitly use (push 7 unread-command-events)
> rather than the more readable (push repeat-exit-key
> unread-command-events)
>
> since unread-command-events doesn't like having a vector pushed onto it.

Actually, the most reliable solution would be to use repeat-exit-timer
because the timer function should run the repeat exit function.
I don't know if there is a function to run the timer function immediately.
The only way that I found is to change the timer's time to 0 seconds,
then the existing timer will fire immediately.  For example:

  (when repeat-exit-timer
    (timer-set-idle-time repeat-exit-timer 0))

Re: Q: How to programatically terminate repeat-mode

[T.V Raman]

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Juri Linkov <juri@linkov.net> writes:

Replacing the earlier (push 7 unread-command-events)
with 
(when repeat-exit-timer
      (timer-set-idle-time repeat-exit-timer 0))

in my disable-repeat function that I called from the process-sentinel of
the media player -- with check for exit as the guard condition has no
effect and the repeat remains in effect.

>> However I needed to explicitly use (push 7 unread-command-events)
>> rather than the more readable (push repeat-exit-key
>> unread-command-events)
>>
>> since unread-command-events doesn't like having a vector pushed onto it.
>
> Actually, the most reliable solution would be to use repeat-exit-timer
> because the timer function should run the repeat exit function.
> I don't know if there is a function to run the timer function immediately.
> The only way that I found is to change the timer's time to 0 seconds,
> then the existing timer will fire immediately.  For example:
>
>   (when repeat-exit-timer
>     (timer-set-idle-time repeat-exit-timer 0))

-- 

Thanks,

--Raman(I Search, I Find, I Misplace, I Research)
7©4 Id: kg:/m/0285kf1  •0Ü8

Re: Q: How to programatically terminate repeat-mode

[Juri Linkov]

> Replacing the earlier (push 7 unread-command-events)
> with
> (when repeat-exit-timer
>       (timer-set-idle-time repeat-exit-timer 0))
>
> in my disable-repeat function that I called from the process-sentinel of
> the media player -- with check for exit as the guard condition has no
> effect and the repeat remains in effect.

Maybe you are starting multiple timers?  Currently repeat-mode cancels
all previously started timers, but unfortunately cancel-timer for
repeat-exit-timer doesn't run its timer function that should exit
the repeat map.  I propose to add a new optional argument RUN-FUNCTION
to cancel-timer, that will run the timer function after canceling the timer.
This means copying this part of timer-event-handler to cancel-timer:

  (save-current-buffer
    (apply (timer--function timer) (timer--args timer)))

Re: Q: How to programatically terminate repeat-mode

[Stefan Monnier]

Juri Linkov [2022-10-03 09:56:32] wrote:

>> Replacing the earlier (push 7 unread-command-events)
>> with
>> (when repeat-exit-timer
>>       (timer-set-idle-time repeat-exit-timer 0))
>>
>> in my disable-repeat function that I called from the process-sentinel of
>> the media player -- with check for exit as the guard condition has no
>> effect and the repeat remains in effect.
>
> Maybe you are starting multiple timers?  Currently repeat-mode cancels
> all previously started timers, but unfortunately cancel-timer for
> repeat-exit-timer doesn't run its timer function that should exit
> the repeat map.  I propose to add a new optional argument RUN-FUNCTION
> to cancel-timer, that will run the timer function after canceling the timer.
> This means copying this part of timer-event-handler to cancel-timer:

I don't see any need to add some weird `run-function` arg to
`cancel-timer`, here.

Why can't the repeat-map code offer a function to ... "programatically
terminate repeat-mode"?  Since it set up the timer, it can know what
function the timer will run and with what args and can thus run that
same code if it wants to.


        Stefan

Re: Q: How to programatically terminate repeat-mode

[T.V Raman]

yes, API-wise, repeat-mode providing a programmatic means of turning
off a  repeat would be best; also I dont think there is a way for a
user to have multiple repeats active, which makes things simpler.
Stefan Monnier writes:
 > Juri Linkov [2022-10-03 09:56:32] wrote:
 > 
 > >> Replacing the earlier (push 7 unread-command-events)
 > >> with
 > >> (when repeat-exit-timer
 > >>       (timer-set-idle-time repeat-exit-timer 0))
 > >>
 > >> in my disable-repeat function that I called from the process-sentinel of
 > >> the media player -- with check for exit as the guard condition has no
 > >> effect and the repeat remains in effect.
 > >
 > > Maybe you are starting multiple timers?  Currently repeat-mode cancels
 > > all previously started timers, but unfortunately cancel-timer for
 > > repeat-exit-timer doesn't run its timer function that should exit
 > > the repeat map.  I propose to add a new optional argument RUN-FUNCTION
 > > to cancel-timer, that will run the timer function after canceling the timer.
 > > This means copying this part of timer-event-handler to cancel-timer:
 > 
 > I don't see any need to add some weird `run-function` arg to
 > `cancel-timer`, here.
 > 
 > Why can't the repeat-map code offer a function to ... "programatically
 > terminate repeat-mode"?  Since it set up the timer, it can know what
 > function the timer will run and with what args and can thus run that
 > same code if it wants to.
 > 
 > 
 >         Stefan

-- 

Thanks,

--Raman(I Search, I Find, I Misplace, I Research)
♉ Id: kg:/m/0285kf1  🦮

--

Thanks,

--Raman(I Search, I Find, I Misplace, I Research)
♉ Id: kg:/m/0285kf1  🦮

Re: Q: How to programatically terminate repeat-mode

[Juri Linkov]

> Why can't the repeat-map code offer a function to ... "programatically
> terminate repeat-mode"?  Since it set up the timer, it can know what
> function the timer will run and with what args and can thus run that
> same code if it wants to.

This is what I proposed:

>> How do I do this from lisp?
> Maybe the value of 'exitfun' should be stored in a variable?

So a new variable 'repeat-exit-function' and new function 'repeat-exit'
are added now.  Raman, please try to use 'repeat-exit'.

Re: Q: How to programatically terminate repeat-mode

[T.V Raman]

Thanks, will give it a try in the next few days and report back 


-- 

Thanks,

--Raman(I Search, I Find, I Misplace, I Research)
♉ Id: kg:/m/0285kf1  🦮

--

Thanks,

--Raman(I Search, I Find, I Misplace, I Research)
♉ Id: kg:/m/0285kf1  🦮

Re: Q: How to programatically terminate repeat-mode

[T.V Raman]

Works like a charm -- repeat-exit.

Thanks again for working on this --
-- 

Thanks,

--Raman(I Search, I Find, I Misplace, I Research)
♉ Id: kg:/m/0285kf1  🦮

--

Thanks,

--Raman(I Search, I Find, I Misplace, I Research)
♉ Id: kg:/m/0285kf1  🦮

--

Thanks,

--Raman(I Search, I Find, I Misplace, I Research)
♉ Id: kg:/m/0285kf1  🦮

Re: Q: How to programatically terminate repeat-mode

[T.V Raman]

Dont know that I am starting multiple timer, unless that is it's
happening magically underneath Juri Linkov writes:
 > > Replacing the earlier (push 7 unread-command-events)
 > > with
 > > (when repeat-exit-timer
 > >       (timer-set-idle-time repeat-exit-timer 0))
 > >
 > > in my disable-repeat function that I called from the process-sentinel of
 > > the media player -- with check for exit as the guard condition has no
 > > effect and the repeat remains in effect.
 > 
 > Maybe you are starting multiple timers?  Currently repeat-mode cancels
 > all previously started timers, but unfortunately cancel-timer for
 > repeat-exit-timer doesn't run its timer function that should exit
 > the repeat map.  I propose to add a new optional argument RUN-FUNCTION
 > to cancel-timer, that will run the timer function after canceling the timer.
 > This means copying this part of timer-event-handler to cancel-timer:
 > 
 >   (save-current-buffer
 >     (apply (timer--function timer) (timer--args timer)))

-- 

Thanks,

--Raman(I Search, I Find, I Misplace, I Research)
♉ Id: kg:/m/0285kf1  🦮

--

Thanks,

--Raman(I Search, I Find, I Misplace, I Research)
♉ Id: kg:/m/0285kf1  🦮