How to resolve a Promise based on data coming from a third party component?

Question

css

Let's say there is a function that calls a promise and waits for its execution, but we need to ask the user how to split this very promise. Accordingly, we show a custom dialog (javscript confirm does not suit us, although it works) and from this very dialog we need to process this very promise.
promise

{
  closeModalView() { return this.closeView() }

  closeView() { 
    return new Promise( (resolve, reject) => {
      if (this.state.saveViewWithoutChanges) {
        return reject();
      }

      if (!this.state.saveViewWithoutChanges) {
        return resolve();
      }
    })
  }


  render() {
    <Dialog 
      onSuccessButtonClick={ () => this.setState({saveViewWithoutChanges: false}) }
      onCancelButtonClick={ () => this.setState({saveViewWithoutChanges: true}) }
    />
  }
}

Actually, we have the initialization of Promise before the call and, accordingly, mutating the state will not give us anything.
Question: how to resolve a Promise based on data received from a third-party component?
I can well assume that I'm dumb. Please correct if so.

Answer 1

jqueryui.com/draggable but this does not help in any way?

Answer 2

it is not clear when you call the same closeView() , if before the event, then it will work before the changes.
you do closeView().then(()=>{console.log('true');}).catch((error=>{console.log('error');}); and you will see that rather your promise dies just fine before the event
changes.promise is a one-time asynchronous task, and judging by your code, you think that the promise will wait for changes that you send to the
state.Clumsy option, in the success and kensel events, call the closeView( true) closeView(false)
and rewrite the function like this:

closeView(state) { 
    return new Promise( (resolve, reject) => {
      if (state) {
        return reject();
      }
else {
        return resolve();
      }
    })
  }

Answer 3

And what prevents to initialize a promise after a mutation? Or store the promise itself in the constructor?