Function handleAndDispatchCustomEvent

packages/ui/src/dismissable-layer.tsx:323–338

(
  name: string,
  handler: ((event: E) => void) | undefined,
  detail: { originalEvent: OriginalEvent } & (E extends CustomEvent<infer D> ? D : never),
  { discrete }: { discrete: boolean },
)

}

function handleAndDispatchCustomEvent<E extends CustomEvent, OriginalEvent extends Event>(
  name: string,
  handler: ((event: E) => void) | undefined,
  detail: { originalEvent: OriginalEvent } & (E extends CustomEvent<infer D> ? D : never),
  { discrete }: { discrete: boolean },
) {
  const target = detail.originalEvent.target
  const event = new CustomEvent(name, { bubbles: false, cancelable: true, detail })
  if (handler) target.addEventListener(name, handler as EventListener, { once: true })

  if (discrete) {
    dispatchDiscreteCustomEvent(target, event)
  } else {
    target.dispatchEvent(event)
  }
}

export { DismissableLayer, DismissableLayerBranch }