[Seaside] Re: WAImageMapTag problem with Scriptaculous?
john.chludzinski at gmail.com
Tue Nov 10 23:02:53 UTC 2009
If I use:
callback: [ :point | point x > 200 ifTrue: [ self nextPage ] ifFalse:
[ self previousPage ]];
with: [ html image id: #WWW; url: MMAFileLibrary / self
This works BUT the entire page in re-rendered. Not what I want.
If I use:
onClick: (html scriptaculous evaluator
callback: [ :script | self nextPage ];
This updates the instance of WAImageMapTag with the next slide (without
re-rendering the entire page) BUT I don't have access to 'point' to
determine whether to invoke either #nextPage or #previousPage.
On Tue, Nov 10, 2009 at 5:10 PM, John Chludzinski <
john.chludzinski at gmail.com> wrote:
> I trying to use an instance of WAImageMapTag to hold a slide (in a
> presentation). Instead of using buttons (on an iPod), I'm trying to advance
> to the next slide by clicking on the right half of the slide or going back
> to the previous slide by clicking on the left half. This requires I have
> access to 'point' in 'callback: [ :point | ... ]' associated with the
> instance of WAImageMapTag. But when using Scriptaculous, I'd like to have
> something like this:
> html map
> onClick: (html scriptaculous evaluator
> callback: [ :script | self x > 200 ifTrue: [ self nextPage ]
> ifFalse: [ self previousPage ]];
> return: false);
> callback: [ :point | self x: point x ];
> with: [ html image id: #WWW; url: MMAFileLibrary / self
> getCurrentPageFile ]].
> This doesn't work (my conclusion?) because the #callback: in the
> Scriptaculous evaluator: "Registers aBlock as a primary callback of the
> receiver." and the other callback ([ :point | self x: point x ]) is never
> invoked? Is there a solution to this Catch-22?
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