Hi,

On Fri, Nov 13, 2009 at 8:31 PM, Jerome Velociter <[email protected]> wrote:

> On 11/13/09 8:16 PM, Guillaume Lerouge wrote:
> > Hi,
> >
> > On Fri, Nov 13, 2009 at 8:05 PM, Jerome Velociter<[email protected]>
>  wrote:
> >
> >> On 11/12/09 3:54 PM, Marius Dumitru Florea wrote:
> >>
> >> [snip]
> >>>>
> >>>> BTW is it such a good idea to load extensions in edit mode?
> >>>> I'm not very convinced, since some extensions could affect the content
> >>>> of the edited DOM, leading to weird content. (Think about the addSizes
> >>>> extension of the SX tutorial for example
> >>>>
> >>
> http://platform.xwiki.org/xwiki/bin/view/DevGuide/SkinExtensionsTutorial).
> >>>
> >>> There were some complains regarding the fact that the live table
> doesn't
> >>> look the same in edit mode so I had to load the extensions in edit mode
> >>> ( http://jira.xwiki.org/jira/browse/XWIKI-3991 ). This is just an
> >>> example. Once we have transformation markers any JSX will be able to
> >>> change the DOM provided the changes are marked. Also, I'm thinking that
> >>> a macro could use a JSX to "draw" something on the page. If JSX are not
> >>> loaded in edit mode the page will look different.
> >>>
> >>> Marius
> >>>
> >>
> >> http://markmail.org/thread/rubnuunk4vd25bzt see :)
> >>
> >> I don't remember we've voted on that, we probably should have. I'm
> >> really not fan of executing the scripts in the WYSIWYG, in the end.
> >> Even the "mark DOM changes" technique will not be enough, as we can't
> >> control how JS libraries we use do inject their content (typically the
> >> lightbox code here) and most extensions are made of/rely on external
> >> libraries.
> >>
> >
> > I'm pretty sure we discussed it since I recall discussing about this with
> > Vincent about this in the past (maybe 1 year ago, when we started working
> on
> > the new editor.)  Marius eventually implemented full rendering and we
> went
> > along with it up to today.
> >
> > It has some great advantages (live macro rendering looks cool in demos)
> but
> > also some drawbacks. Additionally, I'm afraid that the cost of making
> live
> > rendering in edition mode work flawlessly will take a *lot* of work given
> > the huge complexity and variety of situations that might be encoutered.
> >
> > For the livetables ( http://jira.xwiki.org/jira/browse/XWIKI-3991 ) I
> >> tend to think it would have been enough to have the proper CSS, but not
> >> the JS (and have the table would remain empty). I don't see the value of
> >> having the tables really work in edit mode.  (Except for saying "it's
> >> really WYSIWYG").
> >>
> >
> > I agree with Jérôme here. I think we might have been aiming too high.
> While
> > it's very cool to have simple macros such as the ToC one execute right
> away
> > in the browser, maybe we could add a default "executeInEditMode"
> parameter
> > to all macros that lets the macro authors and/or users state whether they
> > want their macros to get executed in the WYSIWYG or to use a placeholder
> > instead.
>
> Well rendering macros and executing javascript code are different
> things. I think still in favor of executing macros (though maybe the
> parameter makes sense, I haven't though about it too much).
>
> Executing JS is different, it potentially can affect the whole document
> content, and there is no way we will be able to deal with it 100%, even
> introducing the transformation markers (how do we manage the extensions
> that remove content,  can we mark that ? how do we manage external
> libraries like the lightbox one that are not aware of the WYWISYG and
> its markers ? etc.)
>
> Jerome.
>
> >
> > In many cases, trying to display what's in the macro / embedded code
> leads
> > to issues of usability, performance and sometimes plain bugs as
> illustrated
> > by the livetable example. We're already going back in some cases such as
> the
> > Flash one.
> >
> > WDYT?
> >
> > I don't like too much the strategy that would say "extensions developers
> >> have to check if they are executed in the WYSIWYG (I guess it's
> >> possible, not tried yet) and adapt the extension behavior accordingly"
> >> Feels somehow a bit too complex.
>

Actually maybe this is a non-issue / best practice to publish for macro
writers since it's very easy to write something like:

{{velocity}}
#if($context.action == 'edit')
Placeholder
#else
JavaScript Code
#end
{{/velocity}}

WDYT?

Guillaume

>>
> >
> > I agree. The "don't execute in WYSIWYG editor" parameter for macros could
> be
> > a solution here.
> >
> > Guillaume
> >
> > Jerome.
> >> _______________________________________________
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> >>
> >
> >
> >
>
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-- 
Guillaume Lerouge
Product Manager - XWiki SAS
Skype: wikibc
Twitter: glerouge
http://guillaumelerouge.com/
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