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| <template>
| <uni-shadow-root class="vant-dropdown-menu-index"><view class="van-dropdown-menu van-dropdown-menu--top-bottom">
| <view v-for="(item,index) in (itemListData)" :key="item.index" :data-index="index" :class="utils.bem('dropdown-menu__item', { disabled: item.disabled })" @click="onTitleTap">
| <view :class="(item.titleClass)+' '+(utils.bem('dropdown-menu__title', { active: item.showPopup, down: item.showPopup === (direction === 'down') }))" :style="item.showPopup ? 'color:' + activeColor : ''">
| <view class="van-ellipsis">
| {{ computed.displayTitle(item) }}
| </view>
| </view>
| </view>
|
| <slot></slot>
| </view></uni-shadow-root>
| </template>
| <wxs src="../wxs/utils.wxs" module="utils"></wxs><wxs src="./index.wxs" module="computed"></wxs>
| <script>
|
| global['__wxRoute'] = 'vant/dropdown-menu/index'
| import { VantComponent } from '../common/component';
| import { addUnit } from '../common/utils';
| let ARRAY = [];
| VantComponent({
| field: true,
| relation: {
| name: 'dropdown-item',
| type: 'descendant',
| current: 'dropdown-menu',
| linked() {
| this.updateItemListData();
| },
| unlinked() {
| this.updateItemListData();
| },
| },
| props: {
| activeColor: {
| type: String,
| observer: 'updateChildrenData',
| },
| overlay: {
| type: Boolean,
| value: true,
| observer: 'updateChildrenData',
| },
| zIndex: {
| type: Number,
| value: 10,
| },
| duration: {
| type: Number,
| value: 200,
| observer: 'updateChildrenData',
| },
| direction: {
| type: String,
| value: 'down',
| observer: 'updateChildrenData',
| },
| closeOnClickOverlay: {
| type: Boolean,
| value: true,
| observer: 'updateChildrenData',
| },
| closeOnClickOutside: {
| type: Boolean,
| value: true,
| },
| },
| data: {
| itemListData: [],
| },
| beforeCreate() {
| const { windowHeight } = wx.getSystemInfoSync();
| this.windowHeight = windowHeight;
| ARRAY.push(this);
| },
| destroyed() {
| ARRAY = ARRAY.filter((item) => item !== this);
| },
| methods: {
| updateItemListData() {
| this.setData({
| itemListData: this.children.map((child) => child.data),
| });
| },
| updateChildrenData() {
| this.children.forEach((child) => {
| child.updateDataFromParent();
| });
| },
| toggleItem(active) {
| this.children.forEach((item, index) => {
| const { showPopup } = item.data;
| if (index === active) {
| item.toggle();
| } else if (showPopup) {
| item.toggle(false, { immediate: true });
| }
| });
| },
| close() {
| this.children.forEach((child) => {
| child.toggle(false, { immediate: true });
| });
| },
| getChildWrapperStyle() {
| const { zIndex, direction } = this.data;
| return this.getRect('.van-dropdown-menu').then((rect) => {
| const { top = 0, bottom = 0 } = rect;
| const offset = direction === 'down' ? bottom : this.windowHeight - top;
| let wrapperStyle = `z-index: ${zIndex};`;
| if (direction === 'down') {
| wrapperStyle += `top: ${addUnit(offset)};`;
| } else {
| wrapperStyle += `bottom: ${addUnit(offset)};`;
| }
| return wrapperStyle;
| });
| },
| onTitleTap(event) {
| const { index } = event.currentTarget.dataset;
| const child = this.children[index];
| if (!child.data.disabled) {
| ARRAY.forEach((menuItem) => {
| if (
| menuItem &&
| menuItem.data.closeOnClickOutside &&
| menuItem !== this
| ) {
| menuItem.close();
| }
| });
| this.toggleItem(index);
| }
| },
| },
| });
| export default global['__wxComponents']['vant/dropdown-menu/index']
| </script>
| <style platform="mp-weixin">
| @import '../common/index.css';.van-dropdown-menu{display:-webkit-flex;display:flex;-webkit-user-select:none;user-select:none;height:50px;height:var(--dropdown-menu-height,50px);background-color:#fff;background-color:var(--dropdown-menu-background-color,#fff)}.van-dropdown-menu__item{display:-webkit-flex;display:flex;-webkit-flex:1;flex:1;-webkit-align-items:center;align-items:center;-webkit-justify-content:center;justify-content:center;min-width:0}.van-dropdown-menu__item:active{opacity:.7}.van-dropdown-menu__item--disabled:active{opacity:1}.van-dropdown-menu__item--disabled .van-dropdown-menu__title{color:#969799;color:var(--dropdown-menu-title-disabled-text-color,#969799)}.van-dropdown-menu__title{position:relative;box-sizing:border-box;max-width:100%;padding:0 8px;padding:var(--dropdown-menu-title-padding,0 8px);color:#323233;color:var(--dropdown-menu-title-text-color,#323233);font-size:15px;font-size:var(--dropdown-menu-title-font-size,15px);line-height:18px;line-height:var(--dropdown-menu-title-line-height,18px)}.van-dropdown-menu__title:after{position:absolute;top:50%;right:-4px;margin-top:-5px;border-color:transparent transparent currentcolor currentcolor;border-style:solid;border-width:3px;-webkit-transform:rotate(-45deg);transform:rotate(-45deg);opacity:.8;content:""}.van-dropdown-menu__title--active{color:#1989fa;color:var(--dropdown-menu-title-active-text-color,#1989fa)}.van-dropdown-menu__title--down:after{margin-top:-1px;-webkit-transform:rotate(135deg);transform:rotate(135deg)}
| </style>
|
|
