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| <template>
| <view
| class="uv-vtabs-item"
| :id="`content_${index}`"
| ref="uv-vtabs-item"
| >
| <slot />
| </view>
| </template>
| <script>
| import mpMixin from '@/uni_modules/uv-ui-tools/libs/mixin/mpMixin.js';
| import mixin from '@/uni_modules/uv-ui-tools/libs/mixin/mixin.js';
| // #ifdef APP-NVUE
| const dom = uni.requireNativePlugin('dom');
| // #endif
| export default {
| name: 'uv-vtabs-item',
| mixins: [mpMixin, mixin],
| props: {
| index: {
| type: [Number,String],
| default: 0
| }
| },
| data(){
| return {
| // 记录item的离顶部的距离
| top: 0,
| // 记录item的高度
| height: 0
| // 是否为联动
| }
| },
| mounted() {
| this.init();
| },
| methods: {
| async init(){
| this.getParentData('uv-vtabs');
| if (!this.parent) {
| return this.$uv.error('uv-vtabs必须要搭配uv-vtabs-item组件使用')
| }
| if(!this.parent.chain) return;
| await this.$uv.sleep();
| this.getItemRect().then(size=>{
| // 由于对象的引用特性，此处会同时生效到父组件的children数组的本实例的top属性中，供父组件判断读取
| this.top = size.top;
| this.height = size.height;
| });
| },
| getItemRect(){
| return new Promise(resolve => {
| // #ifndef APP-NVUE
| this.$uvGetRect('.uv-vtabs-item').then(size => {
| resolve(size)
| })
| // #endif
| // #ifdef APP-NVUE
| const ref = this.$refs['uv-vtabs-item']
| dom.getComponentRect(ref, res => {
| resolve(res.size)
| })
| // #endif
| })
| }
| }
| }
| </script>
|
|
