How to reload glsp Palette UI

[amiths89]

I am currently working on the Theia Blueprint repo with glsp server and model server as well. I am trying to load the palette using an javalin endpoint configured in the modelserver which I am able to do successfully using the modelserveracess object in glsp server. But the Palette UI still does not update even thoughthe nodes in the palette objectis updated, it only updates if i close the diagram and reopen.

Currently I am triggering it like this
'actionDispatcher.dispatch(new Request("tool-palette"),context)'

This works on Java server as I am able to debug into the palette provider but on the client side i see an error message Missing handler.for setContextActions

Whats the action that i can trigger to make this update from the Java glsp server?

[martin-fleck-at]

Hi @amiths89, I'm not sure I fully understand your scenario. In theory it shouldn't make a difference whether you use the Java or the Node server. For the tool palette to be visible there are two things that need to happen:

• SetContextActions: The SetContextActions is the response to a RequestContextActions containing all actions for the queried context. The tool palette is automatically requesting the actions/items after the initial model loading request and is reloaded every time there is an update to the model if we have dynamic actions, so there shouldn't be any need for you to do that.
• SetUIExtensionVisibilityAction: This actually makes sure that the tool palette is visibly rendered. I believe in our default setup this should also be executed automatically as soon as the edit mode is set. If you have a readonly diagram, the tool palette is hidden. So I would definitely also debug into that on the client side and see why that may not be rendered.

The reason you get the message about the SetContextActions is probably because we use it as a request-response pair and not as something that is simply sent from the server without an explicit request.