Speckle SelectionExtension onSelection event

Speckle Help Developers
,
2

Hi @sanchez

Yup, your use case make perfect sense. We might add default events in the SelectionExtension in a future iteration, but you can already achieve the same thing with the following minimal code

export enum SelectionEvent {
  Selected,
  // Other types that you'd want
}

export class EventedSelectionExtension extends SelectionExtension {

  protected applySelection() {
    super.applySelection()
    this.emit(SelectionEvent.Selected)
    /** You can send data as event payload if you wish */
    // this.emit(SelectionEvent.Selected, payload)
  }
}

Here, we’re defining our own SelectionEvent types, then we’re extending the default SelectionExtension and making it emit the Selected event whenever something gets selected. Like you already mentioned all extensions can emit events by default ,so it’s just the matter of calling the emit function.

For the sake of completeness, here is a sandbox with a complete example containing the above code.

Cheers

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