[Seaside] Anchor double click problematic

[dtrussardi at tiscali.it]

Ciao,  thanks.

> You should set the new onClick handler after the first one is triggered.

	What do you mean?

> It is, once clicked, you set a new handler that basically is an dummy handler.

	What should I do to set up a new handler?

> html anchor
>      id: idAjaxAnchor;
>      onClick:(html jQuery script: [:script |
>          script << (JSStream on: ''this.onclick = function(){ return
> false; }').
>          script << (html jQuery ajax callback: [
> flagDialog := false.
>                             [self setupVoceAttiva: each] on:
> DTRDataBaseLockError do: [:ex | flagDialog := true] ] ];
>                               onSuccess: ( html jQuery ajax
>                                                       script: [ :s |
> flagDialog ifTrue:[  s << (s  jQuery: #'dialogId') dialog open ])
>                              ]);
>      with: [ self render6Item: each on: html ].
> 
> (code untested)

	I render the anchor code following your code ( at least I think so )

	but after the first click the anchor click is disabled for forever.

	Many thanks for your help.

		Dario

> 
> This might prevent a double callback invocation, but keep in mind that
> protecting this from the client side is brittle, some mobile browsers
> might submit a request twice if it timeouts, so the robust way of
> achieving this is to have some sort of server side protection.
> 
> I wonder if somebody already implemented a callback that can be
> activated only once or returns an error otherwise.
> 
> Regards,
> 
> Esteban A. Maringolo
> 
> 
> 2018-03-26 13:15 GMT-03:00 dtrussardi at tiscali.it <dtrussardi at tiscali.it>:
>> Ciao,
>> 
>> in the seaside 3.1 application i have a classic anchor declaration:
>> 
>> 
>> html anchor callback:[  delta :=  self doSomethingWithJQDialogError  ];
>> with: [html image url: DTRFileLibrary / #greenupGif ; altText: 'Incrementa';
>> title:'Incrementa' ]
>> 
>> But if the user doubleClick on the anchor i have some problematic and the
>> dialog is not right display.
>> 
>> The double click and the relative double callback generated some
>> problematic.
>> 
>> 
>> Double click isn't a problem you handle at the server, it's something you
>> handle at the client. Toss a touch of JavaScript on the onClick of the
>> anchor and your problem is solved. One click and the anchor is disabled from
>> future clicks while it's submitting.
>> 
>> html anchor
>> callback:[  delta :=  self doSomethingWithJQDialogError  ];
>> onClick: 'this.onclick = function(){ return false; }';
>> with: [html image url:  DTRFileLibrary / #greenupGif ;
>> altText: 'Incrementa';
>> title:'Incrementa' ]
>> 
>> --
>> Ramon Leon
>> 
>> 
>> Now as Leon suggested ( thanks ) i add the :   onClick: 'this.onclick =
>> function(){ return false; }';
>> 
>> and all work right with callback re-rendering.
>> 
>> 
>> But with the ajax callback as :
>> 
>> html anchor
>>     id: idAjaxAnchor;
>> onClick: 'this.onclick = function(){ return false; }';
>>      onClick:( html jQuery ajax callback: [ flagDialog := false.
>> [self setupVoceAttiva: each] on: DTRDataBaseLockError do: [:ex | flagDialog
>> := true] ] ];
>>              onSuccess:
>>                  ( html jQuery ajax
>>                      script: [ :s | flagDialog ifTrue:[  s << (s  jQuery:
>> #'dialogId') dialog open ]);
>> 
>> with: [ self render6Item: each on: html ].
>> 
>> the anchor is not rendering after the first click and the click is disabled
>> for always.
>> 
>> I can disabled the click only for some time ( one second )?
>> 
>> Any trick to solve the problem?
>> 
>> Thanks,
>> 
>> Dario
>> 
>> _______________________________________________
>> seaside mailing list
>> seaside at lists.squeakfoundation.org
>> http://lists.squeakfoundation.org/cgi-bin/mailman/listinfo/seaside
>> 
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