[news.eclipse.webtools.jsf] Re: Customizing palette in Web Page Editor

[cameron.bateman@xxxxxxxxxx (Cameron Bateman)]

> Could you please elaborate on how to implement 
> getDropCustomizationData() that returns an IAdaptable? I tried to search 
> the source code for an example but could not find any.

This will depend on what you want to do based on drop customization.  We 
do not currently have any framework that uses this data (if you want to 
propose something, please feel free to write some code and attach it to a 
bugzilla patch).

Let's say that you have an element called "foo" and you want to allow the 
user to customize an attribute on foo called "id".  So your goal is:

<somePrefix:foo id="<user value>"/>

You would use the the drop customizer to collect the <user value> from the 
user using your dialog.  You will then need to extend the ITagCreator API 
to change the way the element is created.  To do this, you need to return 
an implementation of ITagCreator from your AbstractElementEdit 
implementation (the same one that creates the drop customizer).

To do this, create a concrete implementation of AbstractTagCreator that 
returns your own sub-class of DefaultTagCreationAdvisor.  Override 
getElementCustomizationCommand to return your own 
ElementCustomizationCommand sub-class that overrides 
applyAttributeCustomization().  In your override, you will have access to 
_creationData.getDropCustomizationData() which will automatically be 
populated with the IAdaptable object that your returned from the drop 
customizer.

You can simply cast this to a known type, or better, call 
getAdapter(ISomeInterface.class) to make your customization data more 
flexible.


--Cam