Re: [emf-dev] Allowing custom property editors

[Jens Reimann <jens.reimann@xxxxxxxxxxxxxxx>]

Hi,

I also opened an issue [1] in bugzilla.

Jens

[1] https://bugs.eclipse.org/bugs/show_bug.cgi?id=438123

On 06/18/2014 04:59 PM, Jens Reimann wrote:
> Hi,
>
> I just stumbled over the issue again that I would like to have a custom
> property editor for the EMF generated editors. However this seems to be
> a bigger task. Either one has to replace a lot of generated classes or
> use some other toolset like EEF.
>
> I think there is way to do this with EMF.Edit and started performing the
> changes in our own project, Eclipse SCADA. However I would like to see
> the changes become part of EMF, if possible.
>
> As far as I have figured it out, the basic problem is, that
> AdapterFactoryContentProvider creates the actual IPropertySource
> instance, which is derived from a IItemPropertyDescriptor. This process
> takes place in PropertyDescriptor.createPropertyEditor(...). However
> there seems to be no extensible way to intercept this process and inject
> a custom property editor.
>
> I started with a small patch in gerrit [1] which basically allows other
> adapters to join in when the conversion from "Object" to
> "IPropertySource" takes place. This would be a first step to allow
> others to inject custom property editors, if needed. Otherwise the
> default process takes place.
>
> This could also be done in a custom implementation on a per project
> (editor) base. However if you have a bigger set or models and extension
> models. This would mean that all editors have to use this extended
> version of AdapterFactoryContentProvider. If one editor implementation
> still uses the default implementation, then the whole process would be
> broken for a extending model.
>
> Please let me know what you think.
>
> Jens Reimann
>
> [1] https://git.eclipse.org/r/#/c/28689/
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