[jbosstools-dev] Re: VPE editor

[Sergey Vasilyev]

Max Rydahl Andersen wrote:
>> - lazy Visual Editor update
>> The Visual editor is updated on every keystroke. I propose to postpone
>> the update for some time. This means - if a user enters a few keys
>> quickly, the Visual editor will be updated only once. There is the
>> org.eclipse.wst.sse.ui.sourcevalidation extenison point within the
>> Webtools project that can be used for adding this feature. It is also
>> possible to implement this feature using the code I added when fixing
>> http://jira.jboss.com/jira/browse/JBIDE-1479 (we could use 400 ms during
>> editing; this is the default value for the sourcevalidation extenison
>> point).
>>     
>
> If we don't have that already (I thought we had) then definitly since I even 
> did that for my trivial HQL to SQL view and that gave a tremendous speedup (at
> least it is perceived to the user as such)
>
>   
>> - adding the Link (Synchronize) action to the Visual editor next to the
>> Preferences, Refresh, Page Design Options actions.
>> This action would be a check box similar to the "Link with editor" in
>> the Package Explorer view. It would be checked/enabled by default. In
>> that case, the VPE would behave as it does now. If the user disables the
>> action, the VPE wouldn't be updated (VpeController.notifyChanged()
>> wouldn't be called). This would be very useful when editing large JSP
>> files. The user could always call Refresh (or check Link) to show the
>> visual part of the editor.
>>     
>
> I see what you mean here, and I like the idea but what happens when the user
> disabled the synchronization and changes from one part of the view to the other -
> I guess it should be forcefully updated to make sure the two views are in sync when 
> they edit each others models ?
>
> /max
>   
Right now we are thinking about if it possible to use caching to avoid 
rebuild children tags when we are editing the parent. If the parent tag 
has a lot of children tags rebuilding all of them can take a lot of time.

In my opinion after we have separated source and visual editors to 
reduce time to rebuild visual part a user can simply switch to source 
tab, and there is no necessity in check box link/unlink to visual editor.

/sergey