message: feat(Popover): add more event
diff: @@ -147,6 +147,22 @@ export default createComponent({
  onClickOutside() {
  this.$emit('input', false);
  },
  +
  + onOpen() {
  + this.$emit('open');
  + },
  +
  + onOpened() {
  + this.$emit('opened');
  + },
  +
  + onClose() {
  + this.$emit('close');
  + },
  +
  + onClosed() {
  + this.$emit('closed');
  + },
  },
  render() {
  @@ -162,8 +178,12 @@ export default createComponent({
  transition="van-popover-zoom"
  lockScroll={false}
  getContainer={this.getContainer}
  - onInput={this.onToggle}
  + onOpen={this.onOpen}
  onClick={this.onClick}
  + onClose={this.onClose}
  + onInput={this.onToggle}
  + onOpened={this.onOpened}
  + onClosed={this.onClosed}
  >
  <div class={bem('arrow')} />
  {this.actions.map(this.renderAction)}
  