Customisation of attributes

Hi,

I would like to insert a span with an attribute contentEditable into Trix editor text body, something like:

< span contenteditable="false" >text body< /span >

It is already feasible to add new textattributes for span, as using:

Trix.config.textAttributes.span = {
tagName: "span",
inheritable: true,
parser: false
}

But it is failed to add attribute contenteditable inside tag.

What is the right way to add this contenteditable attribute?

Thanks!

Start by reading the Trix.config.textAttributes configuration and the text-attribute parsing behavior that handles span tags. Reproduce the requested contenteditable="false" span in the editor and verify that the attribute is preserved in the text body without changing other span attributes.

Written by the indexing model from the issue text.