How to use LabelEditValidator?

[glsp-bot]

I created scheme element with structure ElementBody -> Label. I Made label editable, by setting feature editLabelFeature, by implementing Nameable, WithEditableLabel and setting DEFAULT_FEATURES in element model.

On server i created own implementation of LabelEditValidator and registered it. All works fine - label on client can be edited, validator on server works fine. But when validator returns error with message there is no message on client side. Just cannot apply entered text. What should i do to make error message visible for user?

original thread by MoHcmp

[planger]

The rendering of validation messages of label edits is done by the bound implementation of IEditLabelvalidatorDecorator:
https://github.com/eclipse-glsp/glsp-client/blob/master/packages/client/src/features/edit-label/edit-label-validator.ts
By default, we bind the BalloonLabelvalidationDecorator that shows the validation message based on balloon.css. It is bound here:
https://github.com/eclipse-glsp/glsp-client/blob/4e7da984e79b162cf4c5ccc3cedf82ced047ddb9/packages/client/src/features/edit-label/di.config.ts#L25
If this is also bound in your diagram editor implementation, maybe what's missing is to include the css:
https://github.com/eclipse-glsp/glsp-client/blob/4e7da984e79b162cf4c5ccc3cedf82ced047ddb9/examples/workflow-glsp/src/di.config.ts#L17

[glsp-bot]

[MoHcmp]

Thank you. This works but with old version of balloon-css. Should use '^0.5.0' like in workflow-glsp example

[planger]

Ok good! If you'd like to upgrade the baloon-css dependency, feel free to open a PR. Thanks!