"No HTML documentation will be generated" on valid elements

[etraisnel2]

Reproduced on Capella 7.0.0 , xhtmldocgen 7.0.1 and
with Requirement-vp 0.14 for the example.

When running "HTML Documentation Generation on selected elements ..."
Some model elements appear grayed out, even though you can generate documentation for it.

Example with requirements-vp:

After taking a look at the code, it appears that all elements that are not a CapellaElement, a DModelElement, or a DRepresentationElement are displayed as greyed out.

capella-xhtml-docgen/docgenhtml/plugins/org.polarsys.capella.docgen.configuration.ui/src/org/polarsys/capella/docgen/configuration/ui/utils/ConfigurationUtils.java

Line 201 in 3371a6b

public boolean canGenerateHtmlDocumentationFor(EObject eObject) {

So basically, all elements contributed from viewpoint, which do not extend NamedElement/CapellaElement, but just ExtensibleElement/ElementExtension are greyed out, even if a docgen extension is contributed.

This is purely a UI issue, as the document generation is not impacted.
Elements can be checked and their documentation is properly generated