Can Widgets add onModifiedEnd event handler or export a leftButtonPress handle just receive a callback

[supriome]

I'm using ImplicitPlaneWidget, I want to listen event of left button release. I notice implict plane behavior has this event listener.

But when i use widget, I can only have an option of listen onModified event, it trigger every time when i drag the actor.

So, is it possible that add a function like widget.getWidgetState().onModifiedEnd(callback)

[bruyeret]

You can register a callback on "end interaction event" thanks to this line in ImplicitPlanWidget:

publicAPI.invokeEndInteractionEvent();

To register a callback, use:

/**
 * Registers a callback to be invoked when an end interaction event occurs.
 * 
 * @param {EventHandler} cb The callback to be called. 
 * @param {Number?} [priority] The callback to be called
 */
onEndInteractionEvent(cb: EventHandler, priority?: number): Readonly<vtkSubscription>;

[bruyeret]

Is this the function you were looking for?

[finetjul]

To do so, you need to do something like:

const instancedWidgetInView = widgetManager.addWidget(widget);
instancedWidgetInView.onEndInteractionEvent(...)

[supriome]

@finetjul @bruyeret
Thanks you both, I've try your code instancedWidgetInView.onEndInteractionEvent(...) and it works, it helps me a lot.