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- import { getRect } from '../common/utils';
- import { VantComponent } from '../common/component';
- VantComponent({
- relation: {
- name: 'tabbar-item',
- type: 'descendant',
- current: 'tabbar',
- linked(target) {
- target.parent = this;
- target.updateFromParent();
- },
- unlinked() {
- this.updateChildren();
- },
- },
- props: {
- active: {
- type: null,
- observer: 'updateChildren',
- },
- activeColor: {
- type: String,
- observer: 'updateChildren',
- },
- inactiveColor: {
- type: String,
- observer: 'updateChildren',
- },
- fixed: {
- type: Boolean,
- value: true,
- observer: 'setHeight',
- },
- placeholder: {
- type: Boolean,
- observer: 'setHeight',
- },
- border: {
- type: Boolean,
- value: true,
- },
- zIndex: {
- type: Number,
- value: 1,
- },
- safeAreaInsetBottom: {
- type: Boolean,
- value: true,
- },
- },
- data: {
- height: 50,
- },
- methods: {
- updateChildren() {
- const { children } = this;
- if (!Array.isArray(children) || !children.length) {
- return;
- }
- children.forEach((child) => child.updateFromParent());
- },
- setHeight() {
- if (!this.data.fixed || !this.data.placeholder) {
- return;
- }
- wx.nextTick(() => {
- getRect(this, '.van-tabbar').then((res) => {
- this.setData({ height: res.height });
- });
- });
- },
- },
- });
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