655 lines
18 KiB
Vue
655 lines
18 KiB
Vue
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<template>
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<view class="tn-cascade-selection tn-cascade-selection-class">
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<scroll-view
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class="selection__scroll-view"
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:class="[{'tn-border-solid-bottom': headerLine}]"
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:style="[scrollViewStyle]"
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scroll-x
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scroll-with-animation
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:scroll-into-view="scrollViewId"
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>
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<view class="selection__header" :class="[backgroundColorClass]" :style="[headerStyle]">
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<view
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v-for="(item, index) in selectedArr"
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:key="index"
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:id="`select__${index}`"
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class="selection__header__item"
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:class="[headerItemClass(index)]"
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:style="[headerItemStyle(index)]"
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@tap.stop="clickNav(index)"
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>
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{{ item.text }}
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<view
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v-if="index===currentTab && showActiveLine"
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class="selection__header__line"
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:style="{backgroundColor: activeLineColor}"
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></view>
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</view>
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</view>
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</scroll-view>
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<swiper
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class="selection__list"
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:class="[backgroundColorClass]"
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:style="[listStyle]"
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:current="currentTab"
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:duration="300"
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@change="switchTab"
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>
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<swiper-item
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v-for="(item, index) in selectedArr"
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:key="index"
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>
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<scroll-view
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class="selection__list__item"
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:style="{height: selectionContainerHeight + 'rpx'}"
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scroll-y
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:scroll-into-view="item.scrollViewId"
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>
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<view class="selection__list__item--first"></view>
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<view
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v-for="(subItem, subIndex) in item.list"
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:key="subIndex"
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:id="`select__${subIndex}`"
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class="selection__list__item__cell"
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:style="[itemStyle]"
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@tap="change(index, subIndex, subItem)"
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>
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<view
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v-if="item.index === subIndex"
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class="selection__list__item__icon tn-icon-success"
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:style="[itemIconStyle]"
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></view>
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<image
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v-if="subItem.src"
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class="selection__list__item__image"
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:style="[itemImageStyle]"
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:src="subItem.src"
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></image>
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<view
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class="selection__list__item__title"
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:class="[{'tn-text-bold': item.index === subIndex && itemActiveBold}]"
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:style="[itemTitleStyle(index, subIndex)]"
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>
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{{ subItem.text }}
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</view>
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<view
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v-if="subItem.subText"
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class="selection__list__item__title--sub"
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:style="[itemSubTitleStyle]"
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>
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{{ subItem.subText }}
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</view>
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</view>
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</scroll-view>
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</swiper-item>
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</swiper>
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</view>
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</template>
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<script>
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import componentsColorMixin from '../../libs/mixin/components_color.js'
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export default {
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name: 'tn-cascade-selection',
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mixins: [ componentsColorMixin ],
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props: {
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// 如果下一级是请求返回，则为第一级数据，否则为所有数据
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/* {
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text: '', // 标题
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subText: '', // 子标题
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src: '', // 图片地址
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value: 0, // 选中的值
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children: [
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{
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text: '',
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subText: '',
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value: 0,
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children: []
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}
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]
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} */
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list: {
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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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// 默认选中值
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// ['value1','value2','value3']
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defaultValue: {
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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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// 子集数据通过请求来获取
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request: {
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type: Boolean,
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default: false
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},
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// request为true时生效, 获取到的子集数据
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receiveData: {
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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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// 显示header底部细线
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headerLine: {
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type: Boolean,
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default: true
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},
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// header背景颜色
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headerBgColor: {
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type: String,
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default: ''
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},
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// 顶部标签栏高度,单位rpx
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tabsHeight: {
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type: Number,
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default: 88
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},
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// 默认显示文字
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text: {
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type: String,
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default: '请选择'
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},
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// 选中的颜色
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activeColor: {
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type: String,
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default: '#01BEFF'
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},
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// 选中后加粗
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activeBold: {
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type: Boolean,
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default: true
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},
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// 选中显示底部线条
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showActiveLine: {
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type: Boolean,
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default: true
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},
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// 线条颜色
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activeLineColor: {
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type: String,
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default: '#01BEFF'
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},
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// icon大小,单位rpx
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activeIconSize: {
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type: Number,
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default: 0
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},
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// icon颜色
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activeIconColor: {
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type: String,
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default: '#01BEFF'
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},
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// item图片宽度, 单位rpx
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itemImgWidth: {
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type: Number,
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default: 0
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},
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// item图片高度, 单位rpx
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itemImgHeight: {
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type: Number,
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default: 0
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},
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// item图片圆角
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itemImgRadius: {
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type: String,
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default: '50%'
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},
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// item text颜色
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itemTextColor: {
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type: String,
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default: ''
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},
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// item text选中颜色
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itemActiveTextColor: {
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type: String,
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default: ''
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},
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// item text选中加粗
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itemActiveBold: {
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type: Boolean,
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default: true
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},
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// item text文字大小, 单位rpx
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itemTextSize: {
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type: Number,
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default: 0
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},
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// item subText颜色
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itemSubTextColor: {
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type: String,
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default: ''
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},
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// item subText字体大小, 单位rpx
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itemSubTextSize: {
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type: Number,
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default: 0
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},
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// item样式
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itemStyle: {
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type: Object,
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default() {
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return {}
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}
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},
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// selection选项容器高度, 单位rpx
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selectionContainerHeight: {
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type: Number,
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default: 300
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}
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},
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computed: {
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scrollViewStyle() {
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let style = {}
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if (this.headerBgColor) {
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style.backgroundColor = this.headerBgColor
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}
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return style
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},
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headerStyle() {
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let style = {}
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style.height = `${this.tabsHeight}rpx`
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if (this.backgroundColorStyle) {
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style.backgroundColor = this.backgroundColorStyle
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}
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return style
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},
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headerItemClass() {
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return (index) => {
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let clazz = ''
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if (index !== this.currentTab) {
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clazz += ` ${this.fontColorClass}`
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} else {
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if (this.activeBold) {
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clazz += ' tn-text-bold'
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}
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}
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return clazz
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}
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},
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headerItemStyle() {
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return (index) => {
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let style = {}
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style.color = index === this.currentTab ? this.activeColor : (this.fontColorStyle ? this.fontColorStyle : '')
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if (this.fontSizeStyle) {
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style.fontSize = this.fontSizeStyle
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}
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return style
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}
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},
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listStyle() {
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let style = {}
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style.height = `${this.selectionContainerHeight}rpx`
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if (this.backgroundColorStyle) {
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style.color = this.backgroundColorStyle
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}
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return style
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},
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itemIconStyle() {
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let style = {}
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if (this.activeIconColor) {
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style.color = this.activeIconColor
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}
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if (this.activeIconSize) {
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style.fontSize = this.activeIconSize + 'rpx'
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}
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return style
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},
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itemImageStyle() {
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let style = {}
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if (this.itemImgWidth) {
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style.width = this.itemImgWidth + 'rpx'
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}
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if (this.itemImgHeight) {
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style.height = this.itemImgHeight + 'rpx'
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}
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if (this.itemImgRadius) {
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style.borderRadius = this.itemImgRadius
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}
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return style
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},
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itemTitleStyle() {
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return (index, subIndex) => {
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let style = {}
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if (index === subIndex) {
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if (this.itemActiveTextColor) {
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style.color = this.itemActiveTextColor
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}
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} else {
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if (this.itemTextColor) {
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style.color = this.itemTextColor
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}
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}
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if (this.itemTextSize) {
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style.fontSize = this.itemTextSize + 'rpx'
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}
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return style
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}
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},
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itemSubTitleStyle() {
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let style = {}
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if (this.itemSubTextColor) {
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style.color = this.itemSubTextColor
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}
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if (this.itemSubTextSize) {
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style.fontSize = this.itemSubTextSize + 'rpx'
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}
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return {}
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}
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},
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watch: {
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list(val) {
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this.initData(val, -1)
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},
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defaultValue(val) {
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this.setDefaultValue(val)
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},
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receiveData(val) {
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this.addSubData(val, this.currentTab)
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},
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},
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data() {
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return {
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// 当前选中的子集
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currentTab: 0,
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// tabs栏scrollView滚动的位置
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scrollViewId: 'select__0',
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// 选项数组
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selectedArr: []
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}
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},
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created() {
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this.setDefaultValue(this.defaultValue)
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},
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methods: {
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// 初始化数据
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initData(data, index) {
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if (!data || data.length === 0) return
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if (this.request) {
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// 第一级数据
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this.addSubData(data, index)
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} else {
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this.addSubData(this.getItemList(index, -1), index)
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}
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},
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// 重置数据
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reset() {
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this.initData(this.list, -1)
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},
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// 滚动切换
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switchTab(e) {
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this.currentTab = e.detail.current
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this.checkSelectPosition()
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},
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// 点击标题切换
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clickNav(index) {
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if (this.currentTab !== index) {
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this.currentTab = index
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}
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},
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// 列表数据发生改变
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change(index, subIndex, subItem) {
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let item = this.selectedArr[index]
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if (item.index === subIndex) return
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item.index = subIndex
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item.text = subItem.text
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item.subText = subItem.subText || ''
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item.value = subItem.value
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item.src = subItem.src || ''
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this.$emit('change', {
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index: index,
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subIndex: subIndex,
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...subItem
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})
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// 如果不是异步加载，则取出对应的数据
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if (!this.request) {
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let data = this.getItemList(index, subIndex)
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this.addSubData(data, index)
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}
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|
},
|
||
|
|
// 设置默认的数据
|
||
|
|
setDefaultValue(val) {
|
||
|
|
let defaultValues = val || []
|
||
|
|
if (defaultValues.length > 0) {
|
||
|
|
this.selectedArr = this.getItemListWithValues(JSON.parse(JSON.stringify(this.list)), defaultValues)
|
||
|
|
if (!this.selectedArr) return
|
||
|
|
this.currentTab = this.selectedArr.length - 1
|
||
|
|
this.$nextTick(() => {
|
||
|
|
this.checkSelectPosition()
|
||
|
|
})
|
||
|
|
// defaultItemList.map((item) => {
|
||
|
|
// item.scrollViewId = `select__${item.index}`
|
||
|
|
// })
|
||
|
|
// this.selectedArr = defaultItemList
|
||
|
|
// this.currentTab = defaultItemList.length - 1
|
||
|
|
// this.$nextTick(() => {
|
||
|
|
// this.checkSelectPosition()
|
||
|
|
// })
|
||
|
|
} else {
|
||
|
|
this.initData(this.list, -1)
|
||
|
|
}
|
||
|
|
},
|
||
|
|
// 获取对应选项的item数据
|
||
|
|
getItemList(index, subIndex) {
|
||
|
|
let list = []
|
||
|
|
let arr = JSON.parse(JSON.stringify(this.list))
|
||
|
|
// 初始化数据
|
||
|
|
if (index === -1) {
|
||
|
|
list = this.removeChildren(arr)
|
||
|
|
} else {
|
||
|
|
// 判断第一项是否已经选择
|
||
|
|
let value = this.selectedArr[0].index
|
||
|
|
value = value === -1 ? subIndex : value
|
||
|
|
list = arr[value].children || []
|
||
|
|
if (index > 0) {
|
||
|
|
for (let i = 1; i < index + 1; i++) {
|
||
|
|
// 获取当前数据选中的序号
|
||
|
|
let val = index === i ? subIndex : this.selectedArr[i].index
|
||
|
|
list = list[val].children || []
|
||
|
|
if (list.length === 0) break
|
||
|
|
}
|
||
|
|
}
|
||
|
|
list = this.removeChildren(list)
|
||
|
|
}
|
||
|
|
return list
|
||
|
|
},
|
||
|
|
// 根据数组中的值获取对应的item数据
|
||
|
|
getItemListWithValues(data, values) {
|
||
|
|
const defaultValues = JSON.parse(JSON.stringify(values))
|
||
|
|
if (!defaultValues || defaultValues.length === 0) return
|
||
|
|
// 取出第一个值所对应的item
|
||
|
|
const itemIndex = data.findIndex((item) => {
|
||
|
|
return item.value === defaultValues[0]
|
||
|
|
})
|
||
|
|
if (itemIndex === -1) return
|
||
|
|
const item = data[itemIndex]
|
||
|
|
item.index = itemIndex
|
||
|
|
item.scrollViewId = `select__${itemIndex}`
|
||
|
|
item.list = this.removeChildren(JSON.parse(JSON.stringify(data)))
|
||
|
|
// 判断是否只有1个值
|
||
|
|
if (defaultValues.length === 1 || (!item.hasOwnProperty('children') || item.children.length === 0)) {
|
||
|
|
return this.removeChildren([item])
|
||
|
|
} else {
|
||
|
|
let selectItemList = []
|
||
|
|
const children = item.children
|
||
|
|
selectItemList.push(item)
|
||
|
|
// 移除已经获取的值
|
||
|
|
defaultValues.splice(0, 1)
|
||
|
|
const childrenValue = this.getItemListWithValues(children, defaultValues)
|
||
|
|
selectItemList = selectItemList.concat(childrenValue)
|
||
|
|
|
||
|
|
return this.removeChildren(selectItemList)
|
||
|
|
}
|
||
|
|
},
|
||
|
|
// 删除子元素
|
||
|
|
removeChildren(data) {
|
||
|
|
let list = data.map((item) => {
|
||
|
|
if (item.hasOwnProperty('children')) {
|
||
|
|
delete item['children']
|
||
|
|
}
|
||
|
|
return item
|
||
|
|
})
|
||
|
|
return list
|
||
|
|
},
|
||
|
|
// 新增子集数据时处理
|
||
|
|
addSubData(data, index) {
|
||
|
|
// 判断是否已经完成选择数据或者为初始化数据
|
||
|
|
if (!data || data.length === 0) {
|
||
|
|
if (index == -1) return
|
||
|
|
// 完成选择
|
||
|
|
let arr = this.selectedArr
|
||
|
|
// 如果当前选中项的序号比已选数据的长度小，则表示当前重新选择了数据
|
||
|
|
if (index < arr.length - 1) {
|
||
|
|
let newArr = arr.slice(0, index + 1)
|
||
|
|
this.selectedArr = newArr
|
||
|
|
}
|
||
|
|
let result = JSON.parse(JSON.stringify(this.selectedArr))
|
||
|
|
let lastItem = result[result.length - 1] || {}
|
||
|
|
let text = ''
|
||
|
|
result.map(item => {
|
||
|
|
text += item.text
|
||
|
|
delete item['list']
|
||
|
|
delete item['scrollViewId']
|
||
|
|
return item
|
||
|
|
})
|
||
|
|
this.$emit('complete', {
|
||
|
|
result: result,
|
||
|
|
value: lastItem.value,
|
||
|
|
text: text,
|
||
|
|
subText: lastItem.subText,
|
||
|
|
src: lastItem.src
|
||
|
|
})
|
||
|
|
} else {
|
||
|
|
// 重置数据
|
||
|
|
let item = [{
|
||
|
|
text: this.text,
|
||
|
|
subText: '',
|
||
|
|
value: '',
|
||
|
|
src: '',
|
||
|
|
index: -1,
|
||
|
|
scrollViewId: 'select__0',
|
||
|
|
list: data
|
||
|
|
}]
|
||
|
|
// 初始化数据
|
||
|
|
if (index === -1) {
|
||
|
|
this.selectedArr = item
|
||
|
|
} else {
|
||
|
|
// 拼接新旧数据并且判断是否为重新选择了数据（如果为重新选择了数据则重置之后的选项数据）
|
||
|
|
let retainArr = this.selectedArr.slice(0, index + 1)
|
||
|
|
this.selectedArr = retainArr.concat(item)
|
||
|
|
}
|
||
|
|
this.$nextTick(() => {
|
||
|
|
this.currentTab = this.selectedArr.length - 1
|
||
|
|
})
|
||
|
|
}
|
||
|
|
},
|
||
|
|
// 检查当前选中项，并将选项设置位置信息
|
||
|
|
checkSelectPosition() {
|
||
|
|
let item = this.selectedArr[this.currentTab]
|
||
|
|
item.scrollViewId = 'select__0'
|
||
|
|
this.$nextTick(() => {
|
||
|
|
setTimeout(() => {
|
||
|
|
// 设置当前数据滚动到的位置
|
||
|
|
let val = item.index < 2 ? 0 : Number(item.index - 2)
|
||
|
|
item.scrollViewId = `select__${val}`
|
||
|
|
}, 10)
|
||
|
|
})
|
||
|
|
|
||
|
|
// 设置选项滚动到所在的位置
|
||
|
|
if (this.currentTab > 1) {
|
||
|
|
this.scrollViewId = `select__${this.currentTab - 1}`
|
||
|
|
} else {
|
||
|
|
this.scrollViewId = `select__0`
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
</script>
|
||
|
|
|
||
|
|
<style lang="scss" scoped>
|
||
|
|
.tn-cascade-selection {
|
||
|
|
width: 100%;
|
||
|
|
}
|
||
|
|
|
||
|
|
.selection {
|
||
|
|
&__scroll-view {
|
||
|
|
background-color: #FFFFFF;
|
||
|
|
}
|
||
|
|
|
||
|
|
&__header {
|
||
|
|
width: 100%;
|
||
|
|
display: flex;
|
||
|
|
align-items: center;
|
||
|
|
position: relative;
|
||
|
|
|
||
|
|
&__item {
|
||
|
|
max-width: 240rpx;
|
||
|
|
padding: 15rpx 30rpx;
|
||
|
|
flex-shrink: 0;
|
||
|
|
overflow: hidden;
|
||
|
|
white-space: nowrap;
|
||
|
|
text-overflow: ellipsis;
|
||
|
|
position: relative;
|
||
|
|
}
|
||
|
|
|
||
|
|
&__line {
|
||
|
|
width: 60rpx;
|
||
|
|
height: 6rpx;
|
||
|
|
border-radius: 4rpx;
|
||
|
|
position: absolute;
|
||
|
|
bottom: 0;
|
||
|
|
right: 0;
|
||
|
|
left: 50%;
|
||
|
|
transform: translateX(-50%);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
&__list {
|
||
|
|
background-color: #FFFFFF;
|
||
|
|
&__item {
|
||
|
|
&--first {
|
||
|
|
width: 100%;
|
||
|
|
height: 20rpx;
|
||
|
|
}
|
||
|
|
|
||
|
|
&__cell {
|
||
|
|
width: 100%;
|
||
|
|
display: flex;
|
||
|
|
align-items: center;
|
||
|
|
padding: 20rpx 30rpx;
|
||
|
|
}
|
||
|
|
|
||
|
|
&__icon {
|
||
|
|
margin-right: 12rpx;
|
||
|
|
font-size: 24rpx;
|
||
|
|
}
|
||
|
|
|
||
|
|
&__image {
|
||
|
|
width: 40rpx;
|
||
|
|
height: 40rpx;
|
||
|
|
margin-right: 12rpx;
|
||
|
|
flex-shrink: 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
&__title {
|
||
|
|
word-break: break-all;
|
||
|
|
color: #333333;
|
||
|
|
font-size: 28rpx;
|
||
|
|
|
||
|
|
&--sub {
|
||
|
|
margin-left: 20rpx;
|
||
|
|
word-break: break-all;
|
||
|
|
color: $tn-font-sub-color;
|
||
|
|
font-size: 24rpx;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
</style>
|