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663 lines
17 KiB
663 lines
17 KiB
<template>
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<view>
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<view class="maskbox" v-show="active" @tap="maskClick"></view>
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<view :class="description == 'row'?'uni-combox-row':'uni-combox-column'">
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<view v-if="label" class="uni-combox__label" :style="labelStyle">
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<text>{{label}}</text>
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</view>
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<view class="u-dropdown">
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<view class="u-dropdown__menu">
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<view class="u-dropdown__menu__item">
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<view class="u-flex " style="width: 100%;">
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<view class="u-close-wrap" v-if="isSearch">
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<u-icon class="u-clear-icon" :size="30" :name="searchIcon"
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:color="searchIconColor ? searchIconColor : color"></u-icon>
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</view>
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<view class="u-input">
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<u-input confirm-type="search" class="uni-combox__input"
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:type="isAutoHeight ? 'textarea':'text'" v-model="inputVal" @confirm="confirm()"
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:placeholder="placeholder" :auto-height="isAutoHeight"
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:height="isAutoHeight ?height-20:height" />
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</view>
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<icon class="uni-combox__icon" type="clear" size="16" @tap="clearInputValue"
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v-if="inputVal!=''" style="height: 100%;align-items: center;justify-content: center;" />
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<!-- <image size="16" src="/static/icons/close-circle2.svg"
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style="height: 35%;width: 10%;align-items: center;justify-content: center;background-color: aqua;display: flex;"> -->
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<!-- </image> -->
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<view :style="{width:height + 'rpx'}" class="u-dropdown__menu__item__arrow" :class="{
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'u-dropdown__menu__item__arrow--rotate': active
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}" @tap.stop="menuClick()">
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<u-icon :custom-style="{display: 'flex'}" :name="menuIcon"
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:size="$u.addUnit(menuIconSize)" :color="active ? activeColor : '#c0c4cc'"></u-icon>
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</view>
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</view>
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</view>
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</view>
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<view class="u-dropdown__content" :style="[contentStyle, {
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transition: `opacity ${duration / 1000}s linear`,
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top: $u.addUnit(height+28),
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height: contentHeight + 'px'}]" @tap="maskClick" @touchmove.stop.prevent>
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<view class="u-dropdown__content__popup" :style="[popupStyle]" @touchmove.stop.prevent="() => {}"
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@tap.stop.prevent="() => {}">
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<view class="uni-combox__selector-empty" v-if="optionsLength === 0" @click="empty()">
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<text>{{emptyTips}}</text>
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</view>
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<view v-for="(item, index) in filterOptions" style="width: 100%;"
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@click="onSelectorClick(index)">
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<view v-if="itemTextCount == 1" class="uni-combox-item">
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<text class="uni-combox-item-text" :title-style="{
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color: inputVal === item ? activeColor : inactiveColor
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}">{{item}}</text>
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<u-icon v-if="inputVal === item" name="checkbox-mark" :color="activeColor" size="32">
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</u-icon>
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</view>
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<view v-if="itemTextCount == 2" class="uni-combox-item2">
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<text class="uni-combox-item-text" :title-style="{
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color: inputVal === item ? activeColor : inactiveColor
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}">{{item.value}}</text>
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<text class="uni-combox-item-text" :title-style="{
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color: inputVal === item ? activeColor : inactiveColor
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}">{{item.desc}}</text>
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</view>
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<u-line class="line_color"></u-line>
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</view>
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</view>
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<!-- <view class="u-dropdown__content__mask"></view> -->
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</view>
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</view>
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</view>
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</view>
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</template>
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<script>
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/**
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* dropdown 下拉菜单
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* @description 菜单标题与编辑框排列方向,即水平排列row/垂直排列column,默认水平排列row
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* @tutorial http://uviewui.com/components/dropdown.html
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* @property {String} active-color 标题和选项卡选中的颜色(默认#2979ff)
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* @property {String} inactive-color 标题和选项卡未选中的颜色(默认#606266)
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* @property {Boolean} close-on-click-mask 点击遮罩是否关闭菜单(默认true)
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* @property {Boolean} close-on-click-self 点击当前激活项标题是否关闭菜单(默认true)
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* @property {String | Number} duration 选项卡展开和收起的过渡时间,单位ms(默认300)
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* @property {String | Number} height 标题菜单的高度,单位任意(默认80)
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* @property {String | Number} border-radius 菜单展开内容下方的圆角值,单位任意(默认0)
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* @property {Boolean} border-bottom 标题菜单是否显示下边框(默认false)
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* @property {String | Number} title-size 标题的字体大小,单位任意,数值默认为rpx单位(默认28)
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* @event {Function} open 下拉菜单被打开时触发
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* @event {Function} close 下拉菜单被关闭时触发
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* @example <pulldown></pulldown>
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*/
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export default {
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name: 'pulldown',
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emits: ["open", "close", "update:modelValue", "input", "change", "confirm"],
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props: {
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// 菜单标题与编辑框排列方向,水平排列row/垂直排列column
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description: {
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type: String,
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default: 'row'
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},
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// 菜单标题
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label: {
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type: String,
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default: ''
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},
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// 菜单标题长度
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labelWidth: {
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type: String,
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default: 'auto'
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},
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// 菜单标题和选项的激活态颜色
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activeColor: {
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type: String,
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default: '#2979ff'
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},
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// 菜单标题和选项的未激活态颜色
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inactiveColor: {
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type: String,
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default: '#606266'
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},
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// 点击遮罩是否关闭菜单
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closeOnClickMask: {
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type: Boolean,
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default: true
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},
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// 点击当前激活项标题是否关闭菜单
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closeOnClickSelf: {
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type: Boolean,
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default: true
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},
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// 过渡时间
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duration: {
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type: [Number, String],
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default: 300
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},
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// 标题菜单的高度,单位任意,数值默认为rpx单位
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height: {
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type: [Number, String],
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default: 55
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},
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// 是否显示下边框
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borderBottom: {
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type: Boolean,
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default: false
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},
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// 标题的字体大小
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titleSize: {
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type: [Number, String],
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default: 28
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},
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// 下拉出来的内容部分的圆角值
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borderRadius: {
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type: [Number, String],
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default: 0
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},
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// 菜单右侧的icon图标
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menuIcon: {
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type: String,
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default: 'arrow-down'
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},
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// 菜单右侧图标的大小
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menuIconSize: {
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type: [Number, String],
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default: 26
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},
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emptyTips: {
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type: String,
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default: '无匹配项'
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},
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// 是否开启搜索模式
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isSearch: {
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type: Boolean,
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default: false
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},
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// 占位提示文字
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hint: {
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type: String,
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default: ''
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},
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// 搜索图标的颜色,默认同输入框字体颜色
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searchIconColor: {
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type: String,
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default: ''
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},
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// 输入框字体颜色
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color: {
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type: String,
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default: '#606266'
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},
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// 左边输入框的图标,可以为uView图标名称或图片路径
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searchIcon: {
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type: String,
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default: 'search'
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},
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// 选项数据,如果传入了默认slot,此参数无效
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options: {
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type: Array,
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default () {
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return [];
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}
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},
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// 搜索图标的颜色,默认同输入框字体颜色
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itemTextCount: {
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type: Number,
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default: 1
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},
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//输入框的高度是否随着行数增加,而自动增加输入框的高度
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isAutoHeight: {
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type: Boolean,
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default: false
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},
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},
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data() {
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return {
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inputVal: '',
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showDropdown: true, // 是否打开下来菜单,
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menuList: [], // 显示的菜单
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active: false, // 下拉菜单的状态
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// 当前是第几个菜单处于激活状态,小程序中此处不能写成false或者"",否则后续将current赋值为0,
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// 无能的TX没有使用===而是使用==判断,导致程序认为前后二者没有变化,从而不会触发视图更新
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current: 99999,
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// 外层内容的样式,初始时处于底层,且透明
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contentStyle: {
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// zIndex: 11,
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zIndex: -1,
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opacity: 0
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},
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// 让某个菜单保持高亮的状态
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highlightIndex: 99999,
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contentHeight: 0
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}
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},
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computed: {
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// 下拉出来部分的样式
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popupStyle() {
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let style = {};
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// 进行Y轴位移,展开状态时,恢复原位。收齐状态时,往上位移100%,进行隐藏
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style.transform = `translateY(${this.active ? 0 : '-100%'})`
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style['transition-duration'] = this.duration / 1000 + 's';
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style.borderRadius = `0 0 ${this.$u.addUnit(this.borderRadius)} ${this.$u.addUnit(this.borderRadius)}`;
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return style;
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},
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labelStyle() {
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if (this.labelWidth === 'auto') {
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return {}
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}
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return {
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width: this.labelWidth
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}
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},
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optionsLength() {
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return this.options.length
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},
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filterOptions() {
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if (this.isSearch) {
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return this.options.filter((item) => {
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return item.indexOf(this.inputVal) > -1
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})
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} else {
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return this.options;
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}
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},
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placeholder() {
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if (this.hint) {
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return this.hint;
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} else {
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if (this.isSearch) {
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return '请输入关键字';
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} else {
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return '请选择';
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}
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}
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},
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},
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created() {
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// 引用所有子组件(u-dropdown-item)的this,不能在data中声明变量,否则在微信小程序会造成循环引用而报错
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this.children = [];
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},
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mounted() {
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this.getContentHeight();
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},
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methods: {
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//清空数据
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clearInputValue() {
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this.inputVal = "";
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},
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//回车监听
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confirm() {
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this.$emit("confirm", this.inputVal);
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},
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init() {
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// 当某个子组件内容变化时,触发父组件的init,父组件再让每一个子组件重新初始化一遍
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// 以保证数据的正确性
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this.menuList = [];
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this.children.map(child => {
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child.init();
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})
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},
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// 点击菜单
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menuClick() {
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// 判断是否被禁用
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// if (this.menuList[index].disabled) return;
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// 如果点击时的索引和当前激活项索引相同,意味着点击了激活项,需要收起下拉菜单
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if (this.active) {
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this.close();
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// 等动画结束后,再移除下拉菜单中的内容,否则直接移除,也就没有下拉菜单收起的效果了
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// setTimeout(() => {
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// this.active = false;
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// }, this.duration)
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return;
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}
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this.open();
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},
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onSelectorClick(index) {
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// console.log(index);
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if (this.itemTextCount == 1) {
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this.inputVal = this.options[index];
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this.close();
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// 修改通过v-model绑定的值
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this.$emit("input", this.inputVal);
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this.$emit("update:modelValue", this.inputVal);
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// 发出事件,抛出当前勾选项的value
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this.$emit("change", index, this.inputVal);
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} else if (this.itemTextCount == 2) {
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this.inputVal = this.options[index].value;
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this.close();
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// 修改通过v-model绑定的值
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this.$emit("input", this.inputVal);
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this.$emit("update:modelValue", this.inputVal);
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// 发出事件,抛出当前勾选项的value
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this.$emit("change", index, this.inputVal);
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}
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},
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// 打开下拉菜单
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open() {
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console.log(this.options[0]);
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console.log(this.options.length);
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// console.log(this.filterOptions());
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// 重置高亮索引,否则会造成多个菜单同时高亮
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// this.highlightIndex = 9999;
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// 展开时,设置下拉内容的样式
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this.contentStyle = {
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zIndex: 11,
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}
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this.$forceUpdate();
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// 标记展开状态以及当前展开项的索引
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this.active = true;
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// this.current = index;
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// 历遍所有的子元素,将索引匹配的项标记为激活状态,因为子元素是通过v-if控制切换的
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// 之所以不是因display: none,是因为nvue没有display这个属性
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this.$emit('open', this.current);
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},
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// 设置下拉菜单处于收起状态
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close() {
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this.$emit('close', this.current);
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// 设置为收起状态,同时current归位,设置为空字符串
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this.active = false;
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this.current = 99999;
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// 下拉内容的样式进行调整,不透明度设置为0
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this.contentStyle = {
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zIndex: -1,
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opacity: 0
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}
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},
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//点击无匹配选项关闭下拉菜单
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empty() {
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// 设置为收起状态,同时current归位,设置为空字符串
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this.active = false;
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this.current = 99999;
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// 下拉内容的样式进行调整,不透明度设置为0
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this.contentStyle = {
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zIndex: -1,
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opacity: 0
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}
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},
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// 点击遮罩
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maskClick() {
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// 如果不允许点击遮罩,直接返回
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if (!this.closeOnClickMask) return;
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this.close();
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},
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// 外部手动设置某个菜单高亮
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highlight(index = undefined) {
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this.highlightIndex = index !== undefined ? index : 99999;
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},
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// 获取下拉菜单内容的高度
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getContentHeight() {
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// 这里的原理为,因为dropdown组件是相对定位的,它的下拉出来的内容,必须给定一个高度
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// 才能让遮罩占满菜单一下,直到屏幕底部的高度
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// this.$u.sys()为uView封装的获取设备信息的方法
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let windowHeight = this.$u.sys().windowHeight;
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this.$uGetRect('.u-dropdown__menu').then(res => {
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// 这里获取的是dropdown的尺寸,在H5上,uniapp获取尺寸是有bug的(以前提出修复过,后来又出现了此bug,目前hx2.8.11版本)
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// H5端bug表现为元素尺寸的top值为导航栏底部到到元素的上边沿的距离,但是元素的bottom值确是导航栏顶部到元素底部的距离
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// 二者是互相矛盾的,本质原因是H5端导航栏非原生,uni的开发者大意造成
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// 这里取菜单栏的botton值合理的,不能用res.top,否则页面会造成滚动
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this.contentHeight = windowHeight - res.bottom;
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// console.log(this.contentHeight);
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// console.log(res.bottom);
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})
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}
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}
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}
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</script>
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<style scoped lang="scss">
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@import "../../uni_modules/vk-uview-ui/libs/css/style.components.scss";
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.u-input {
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width: 100%;
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padding-top: 5px;
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padding-bottom: 5px;
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}
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.u-clear-icon {
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@include vue-flex;
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align-items: center;
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}
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.u-close-wrap {
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width: 30px;
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height: 100%;
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@include vue-flex;
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align-items: center;
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justify-content: center;
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border-radius: 50%;
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}
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.maskbox {
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position: fixed;
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top: 0;
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left: 0;
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width: 100vw;
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height: 100vh;
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z-index: 4;
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}
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.uni-combox-row {
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/* #ifndef APP-NVUE */
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|
width: 100%;
|
|
display: flex;
|
|
/* #endif */
|
|
min-height: 40px;
|
|
flex-direction: row;
|
|
align-items: center;
|
|
position: relative;
|
|
background-color: #FFFFFF;
|
|
// padding-right: 5px;
|
|
// padding-left: 5px;
|
|
// z-index: 3;
|
|
}
|
|
|
|
.uni-combox-column {
|
|
/* #ifndef APP-NVUE */
|
|
width: 100%;
|
|
display: flex;
|
|
/* #endif */
|
|
min-height: 40px;
|
|
flex-direction: column;
|
|
align-items: flex-start;
|
|
position: relative;
|
|
background-color: #FFFFFF;
|
|
// padding-right: 5px;
|
|
// padding-left: 5px;
|
|
// z-index: 3;
|
|
}
|
|
|
|
.uni-combox__label {
|
|
font-size: 16px;
|
|
line-height: 22px;
|
|
padding-right: 10px;
|
|
}
|
|
|
|
.uni-combox__selector-empty,
|
|
.uni-combox__selector-item {
|
|
/* #ifdef APP-NVUE */
|
|
display: flex;
|
|
/* #endif */
|
|
line-height: 36px;
|
|
font-size: 14px;
|
|
text-align: center;
|
|
border-bottom: solid 1px #DDDDDD;
|
|
/* margin: 0px 10px; */
|
|
}
|
|
|
|
.uni-combox__icon {
|
|
display: flex;
|
|
height: 100%;
|
|
align-items: center;
|
|
justify-content: center;
|
|
background-color: #FFFFFF;
|
|
z-index: 4;
|
|
|
|
}
|
|
|
|
.uni-combox__input {
|
|
// flex: 1;
|
|
font-size: 16px;
|
|
height: 100%;
|
|
line-height: 100%;
|
|
background-color: #FFFFFF;
|
|
width: 100%;
|
|
z-index: 5;
|
|
}
|
|
|
|
.uni-combox-item {
|
|
display: flex;
|
|
flex-direction: row;
|
|
font-size: 16px;
|
|
height: 100%;
|
|
line-height: 100%;
|
|
background-color: #FFFFFF;
|
|
width: 100%;
|
|
}
|
|
|
|
.uni-combox-item2 {
|
|
display: flex;
|
|
flex-direction: column;
|
|
font-size: 16px;
|
|
height: 100%;
|
|
line-height: 100%;
|
|
background-color: #FFFFFF;
|
|
width: 100%;
|
|
}
|
|
|
|
.uni-combox-item-text {
|
|
font-size: 16px;
|
|
height: 100%;
|
|
line-height: 100%;
|
|
background-color: #FFFFFF;
|
|
width: 100%;
|
|
padding: 20rpx;
|
|
display: flex;
|
|
}
|
|
|
|
.uni-combox__input-box {
|
|
/* #ifndef APP-NVUE */
|
|
display: flex;
|
|
/* #endif */
|
|
flex: 1;
|
|
flex-direction: column;
|
|
}
|
|
|
|
.uni-combox__selector {
|
|
box-sizing: border-box;
|
|
position: absolute;
|
|
top: 42px;
|
|
left: 0;
|
|
width: 100%;
|
|
background-color: #FFFFFF;
|
|
border-radius: 6px;
|
|
box-shadow: #DDDDDD 4px 4px 8px, #DDDDDD -4px -4px 8px;
|
|
z-index: 2;
|
|
}
|
|
|
|
.u-dropdown {
|
|
flex: 1;
|
|
width: 100%;
|
|
position: relative;
|
|
background-color: #FFFFFF;
|
|
margin-right: 2rpx;
|
|
margin-left: 2rpx;
|
|
|
|
&__menu {
|
|
@include vue-flex;
|
|
// position: relative;
|
|
z-index: 11;
|
|
width: 100%;
|
|
|
|
&__item {
|
|
// flex: 1;
|
|
@include vue-flex;
|
|
justify-content: center;
|
|
// align-items: center;
|
|
border: 2rpx solid $uni-border-color;
|
|
width: 100%;
|
|
margin-top: 2rpx;
|
|
// margin-right: 2rpx;
|
|
// margin-left: 2rpx;
|
|
|
|
&__text {
|
|
font-size: 28rpx;
|
|
color: $u-content-color;
|
|
}
|
|
|
|
&__arrow {
|
|
transition: transform .3s;
|
|
align-items: center;
|
|
justify-content: center;
|
|
@include vue-flex;
|
|
|
|
&--rotate {
|
|
transform: rotate(180deg);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
&__content {
|
|
position: absolute;
|
|
z-index: 8;
|
|
width: 100%;
|
|
left: 0px;
|
|
bottom: 0;
|
|
overflow: hidden;
|
|
// z-index: 10;
|
|
// box-sizing: border-box;
|
|
// position: absolute;
|
|
// top: 42px;
|
|
// left: 0;
|
|
// width: 100%;
|
|
// // background-color: #FFFFFF;
|
|
// border-radius: 6px;
|
|
// box-shadow: #DDDDDD 4px 4px 8px, #DDDDDD -4px -4px 8px;
|
|
// z-index: 10;
|
|
|
|
&__mask {
|
|
position: relative;
|
|
z-index: 9;
|
|
background: rgba(0, 0, 0, .3);
|
|
width: 100%;
|
|
height: 100%;
|
|
left: 0;
|
|
top: 0;
|
|
bottom: 0;
|
|
}
|
|
|
|
&__popup {
|
|
position: relative;
|
|
z-index: 11;
|
|
transition: all 0.3s;
|
|
transform: translate3D(0, -100%, 0);
|
|
overflow: hidden;
|
|
width: 100%;
|
|
background-color: aliceblue;
|
|
border: 2rpx solid $uni-border-color;
|
|
// z-index: 10;
|
|
}
|
|
}
|
|
|
|
}
|
|
</style>
|
|
|