Javascript questions Re: [Seaside] Textarea and setSelectionRange()

[Carl Gundel]

Thanks guys.  I used Michel's suggestion by backporting the Seaside  
2.8 code back to 2.6.  I managed to make something work, but it is  
slightly different depending on the browser.  I also tried Lukas'  
suggestion but with less luck.

I do have an issue with the order of execution of Javascript.  For  
example I am using Editarea which is an open source code editor in  
Javascript.  It comes with it's own set selection function which I was  
unable to make work.  It does work, mind you in their examples and I  
think this is because they tie it to a button which is clicked after  
the page is all loaded up.  I need to make the selection happen  
automatically, but I couldn't figure out how to make the call to the  
selection method happen as the last thing on the page load.  I can  
actually see the selection happen really fast and then it gets wiped  
out by the actions of other scripts.

How is this done in Seaside?  What can I do to specify Javascript that  
will be guaranteed to run after some other Javascript code?  I am a  
beginner in the Javascript realm and I have been spending a lot of  
energy trying to figure this out, but the going has been slow.  Has  
somebody written some details on the use of Javascript with Seaside?

Thanks,

-Carl Gundel
http://www.runbasic.com
http://www.libertybasic.com

On Mar 16, 2009, at 3:26 AM, Bany, Michel wrote:

> Support for this is available in Seaside 2.8.
>
> See #setSelectionFrom:to: and WAStandardFiles>>miscJs.
> See also #renderTextArea: for an example.
>
> HTH,
> Michel
>
>
>
>
>> -----Original Message-----
>> From: seaside-bounces at lists.squeakfoundation.org
>> [mailto:seaside-bounces at lists.squeakfoundation.org] On Behalf
>> Of Lukas Renggli
>> Sent: samedi, 14. mars 2009 17:25
>> To: Seaside - general discussion
>> Subject: Re: [Seaside] Textarea and setSelectionRange()
>>
>>> Has anyone here managed to call the setSelectionRange()
>> method against
>>> a textarea in Seaside?  I cannot seem to get this working.
>>
>> Text selection is handled different in IE.
>>
>> There is JavaScript code in the Pier-EditorEnh plugin at
>> <http://source.lukas-renggli.ch/pieraddons> that retrieves
>> and sets the text selection. As far as I know this code works
>> in all web
>> browsers:
>>
>> function getSelection(element) {
>> 	if (document.selection && document.selection.createRange) {
>> 		var range = document.selection.createRange();
>> 		var stored = range.duplicate();
>> 		stored.moveToElementText(element);
>> 		stored.setEndPoint("EndToEnd", range);
>> 		element.selectionStart = stored.text.length -
>> range.text.length;
>> 		element.selectionEnd = element.selectionStart +
>> range.text.length;
>> 	}
>> 	return [element.selectionStart, element.selectionEnd]; }
>>
>> function setSelection(element, range) {
>> 	element.focus();
>> 	element.selectionStart = range[0];
>> 	element.selectionEnd = range[1];
>> 	if (document.selection && document.selection.createRange) {
>> 		var range = document.selection.createRange();
>> 	 	range.moveStart("character", element.selectionStart);
>> 	    	range.moveEnd("character", element.selectionEnd
>> - element.selectionStart);
>> 		range.select();
>> 	}
>> }
>>
>> Cheers,
>> Lukas
>>
>> --
>> Lukas Renggli
>> http://www.lukas-renggli.ch
>> _______________________________________________
>> seaside mailing list
>> seaside at lists.squeakfoundation.org
>> http://lists.squeakfoundation.org/cgi-bin/mailman/listinfo/seaside
>>
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