Add the possibility to use with multiple select elements

@DieterHolvoet to clarify this: You mean tagify should also work as better ux replacement for
<select multiple></select>
right?

Would you expect that as global replacement or as a widget to select on these fields?

My request is for a new select_tagify element for use in custom code, but afterwards this could also be used as an optional global replacement and in the existing field widget.

Thanks @DieterHolvoet +1 on both! :)

Pushed work in progress to issue fork. Current approach:

• Use Select form element as base for new TagifySelect form element.
• Attach tagify to input HTML element with dropdown which copies options and default value from select HTML element.
• Update selected values via add and remove Tagify events.
• The value callback then is the same as for a select form element.

Some todos:

• Handle single value setting in form element. At the moment, multiple values setting is used.
• Check edge cases for no options, identical options text and identical options keys.
• Check hierarchical options.
• Check if JavaScript can be simplified.
• JavaScript linting.
• Add form element description.
• Work on form widget.
• Add tests.

And here is a small demo.

gxleano → credited kensae → .

Update from #9 ✨ Add the possibility to use with multiple select elements Active

Pushed work in progress to issue fork. Current approach:

• Handle single value setting in form element. At the moment, multiple values setting is used.
• Check edge cases for no options, identical options text and identical options keys.
• Check hierarchical options.
• Check if JavaScript can be simplified.
• JavaScript linting.
• Add form element description.

Some todos:

• Check if JavaScript can be simplified.
• Work on form widget.
• Add tests.

Update from #15 ✨ Add the possibility to use with multiple select elements Active

Pushed work in progress to issue fork. Current approach:

Handle single value setting in form element. At the moment, multiple values setting is used.
Check edge cases for no options, identical options text and identical options keys.
Check hierarchical options.
JavaScript linting.
Add form element description.
Check if JavaScript can be simplified.
Work on form widget.

Some todos:

Add tests.

It will be included in release 1.2.15