import { VantComponent } from '../common/component'; VantComponent({ classes: [ 'active-class', 'disabled-class', ], relation: { type: 'ancestor', name: 'sidebar', linked(target) { this.parent = target; } }, props: { dot: Boolean, info: null, title: String, disabled: Boolean }, methods: { onClick() { const { parent } = this; if (!parent || this.data.disabled) { return; } const index = parent.children.indexOf(this); parent.setActive(index).then(() => { this.$emit('click', index); parent.$emit('change', index); }); }, setActive(selected) { return this.setData({ selected }); } } });