On Jan 29, 2010, at 3:33 PM, Jerome Velociter wrote:

> Vincent Massol wrote:
>> On Jan 29, 2010, at 3:04 PM, Marius Dumitru Florea wrote:
>> 
>>> Hi devs,
>>> 
>>> Right now JavaScript extensions are included when a document is rendered 
>>> in WYSIWYG edit mode. This has  both advantages and disadvantages.
>>> 
>>> Pro: If the output of a macro depends on a JavaScript extension, then 
>>> the result of rendering that macro will be the same in view mode and 
>>> (WYSIWYG) edit mode.
>>> 
>>> Con: If the JavaScript extension is not aware of the edit mode then it 
>>> can modify the DOM document outside of the read-only macro markers which 
>>> leads to unwanted changes in the content of the edited document (i.e. 
>>> the modifications done by the JavaScript extension are saved). Such an 
>>> example is http://jira.xwiki.org/jira/browse/XWIKI-4665 .
>> 
>> Before deciding isn't there a possibility to protect the DOM? Is there no 
>> way to do that?
> 
> What do you mean protect the DOM ?
> 
> If you mean prevent DOM modifications by the extensions, I think it is a 
> hard problem, and it does not really make sense (what the point of 
> including extensions to not discriminate vs. view mode if in the end 
> they cannot affect the DOM ?)
> 
> But maybe that's not what you mean.

No I meant protect the DOM when in wysiwyg edit mode.

I have no idea if it's possible. We have the same issue for the XDOM when a 
transformation makes a change in other parts of the XDOM and we need to protect 
it (by adding markers around the changes). The way I plan to implement this is 
to implement a TransformationXDOM which is an extension of the default XOM 
implementation and that automatically adds markers when a change is done 
outside of its zone.

Thanks
-Vincent

> 
> Jerome.
> 
>> 
>> We're going to do something a little similar for the rendering is there's 
>> invalid HTML entered:
>> http://jira.xwiki.org/jira/browse/XWIKI-3782
>> 
>> Thanks
>> -Vincent
>> 
>>> WDYT? Should we limit the WYSIWYG in order to make the editing safer?
>>> 
>>> I'm +0.
>>> 
>>> Thanks,
>>> Marius
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