Rails spinoffs - Mar 2007 - Element forgets original size if Effect interrupted

I''ve run into an issue. Running Effect.Grow (for instance) to cancel
out
Effect.Shrink makes elements forget their original size, etc. I''ve
looked unsuccessfully a bit for a way to halt further progression of
an
effect so that I can simply put on the brakes and reverse the
transition, whatever the effect is. Any help would be appreciated.

I have a page where I''m demoing effects for my company and
here''s how
it
works:

A set of checkboxes on one side toggle the results of a search page on
and off depending on various selectors (brand, model of product, etc)
and the effects run fine if you let the initiated effect finish. i.e.,
if I run Effect.Shrink on a container, it and its contents shrink away
as expected, etc.

However, if this effect is "interrupted" by another effect call, all
of
its originalX info gets messed with by the new effect.

What is the best way to halt progression and backpedal an effect in
this
way?


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Hey there,

OK, first, there''s the question of whether you need to pull the brakes 
on a running effect, or just run a symetrical effect once your first one 
is done with.

In the latter case, it should work alright, as most effects restore the 
element''s original styling (or lack thereof) upon completion, usually
in
their afterFinishInternal callback.

So for instance:

new Effect.Shrink(''id'');
new Effect.Grow(''id'', { queue: ''end'' });

will work like a charm.

Now, if you need to stop an effect cold, and still have it restore 
original styling, you need to keep a reference on the effect object, 
then trick it into believing it''s done:

var shrinker = new Effect.Shrink(''id'');
// some code, then trick the effect into believing it''s done:
shrinker.loop(shrinker.finishOn);

This uses a rather "private" part of the effects API, but I think
you''re
safe as maintenance goes...

-- 
Christophe Porteneuve aka TDD
tdd-x+CfDp/qHev2eFz/2MeuCQ@public.gmane.org

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Thanks for the response! Will look into it. However, another wrinkle
is that I''m looping through all the boxes with given classes to run
the effect on, and optimally running the effect simultaneously (or
close to it) would be best.


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thynctank a écrit :
> Thanks for the response! Will look into it. However, another wrinkle
> is that I''m looping through all the boxes with given classes to
run
> the effect on, and optimally running the effect simultaneously (or
> close to it) would be best.
How is that impossible ?  Using "new Effect" with the default queue
mode
(''parallel'') triggers them ASAP...

-- 
Christophe Porteneuve a.k.a. TDD
"[They] did not know it was impossible, so they did it." --Mark Twain
Email: tdd-x+CfDp/qHev2eFz/2MeuCQ@public.gmane.org

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Strange that messages from Google Groups propagate to the other list
but not the other way around. Sorry just noticing. It''s an annoyance.


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