how to stop increment or decrement with mouse leave from updown pressed button?

[Sjaeseok]

  <vue-numeric-input
    ref="input"
    :value="value"
    :min="min"
    :max="max"
    :step="step"
    :width="width"
    :precision="precision"
    :disabled="disabled"
    @mouseleave="stopEvent"
    @input="onInput"
    controlsType="updown"
  ></vue-numeric-input>

Does not work as above