152 lines
4.1 KiB
Vue
152 lines
4.1 KiB
Vue
<template>
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<view :class="`wd-collapse ${viewmore ? 'is-viewmore' : ''} ${customClass}`" :style="customStyle">
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<!-- 普通或手风琴 -->
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<block v-if="!viewmore">
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<slot></slot>
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</block>
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<!-- 查看更多模式 -->
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<view v-else>
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<view
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:class="`wd-collapse__content ${!modelValue ? 'is-retract' : ''} `"
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:style="`-webkit-line-clamp: ${contentLineNum}; -webkit-box-orient: vertical`"
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>
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<slot></slot>
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</view>
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<view class="wd-collapse__more" @click="handleMore">
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<!-- 自定义展开按钮 -->
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<view v-if="useMoreSlot" :class="customMoreSlotClass">
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<slot name="more"></slot>
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</view>
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<!-- 显示展开或折叠按钮 -->
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<block v-else>
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<span class="wd-collapse__more-txt">{{ !modelValue ? translate('expand') : translate('retract') }}</span>
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<view :class="`wd-collapse__arrow ${modelValue ? 'is-retract' : ''}`">
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<wd-icon name="arrow-down"></wd-icon>
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</view>
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</block>
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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 lang="ts">
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export default {
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name: 'wd-collapse',
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options: {
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addGlobalClass: true,
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virtualHost: true,
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styleIsolation: 'shared'
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}
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}
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</script>
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<script lang="ts" setup>
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import wdIcon from '../wd-icon/wd-icon.vue'
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import { onBeforeMount, ref, watch } from 'vue'
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import { COLLAPSE_KEY, collapseProps, type CollapseExpose, type CollapseToggleAllOptions } from './types'
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import { useChildren } from '../composables/useChildren'
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import { isArray, isBoolean, isDef } from '../common/util'
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import { useTranslate } from '../composables/useTranslate'
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const props = defineProps(collapseProps)
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const emit = defineEmits(['change', 'update:modelValue'])
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const { translate } = useTranslate('collapse')
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const contentLineNum = ref<number>(0) // 查看更多的折叠面板，收起时的显示行数
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const { linkChildren, children } = useChildren(COLLAPSE_KEY)
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linkChildren({ props, toggle })
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watch(
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() => props.modelValue,
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(newVal) => {
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const { viewmore, accordion } = props
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// 手风琴状态下 value 类型只能为 string
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if (accordion && typeof newVal !== 'string') {
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console.error('accordion value must be string')
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} else if (!accordion && !viewmore && !isArray(newVal)) {
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console.error('value must be Array')
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}
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},
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{ deep: true }
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)
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watch(
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() => props.lineNum,
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(newVal) => {
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if (newVal <= 0) {
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console.error('lineNum must greater than 0')
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}
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},
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{ deep: true, immediate: true }
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)
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onBeforeMount(() => {
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const { lineNum, viewmore, modelValue } = props
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contentLineNum.value = viewmore && !modelValue ? lineNum : 0
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})
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function updateChange(activeNames: string | string[] | boolean) {
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emit('update:modelValue', activeNames)
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emit('change', {
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value: activeNames
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})
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}
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function toggle(name: string, expanded: boolean) {
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const { accordion, modelValue } = props
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if (accordion) {
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updateChange(name === modelValue ? '' : name)
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} else if (expanded) {
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updateChange((modelValue as string[]).concat(name))
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} else {
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updateChange((modelValue as string[]).filter((activeName) => activeName !== name))
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}
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}
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/**
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* 切换所有面板展开状态，传 true 为全部展开，false 为全部收起，不传参为全部切换
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* @param options 面板状态
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*/
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const toggleAll = (options: CollapseToggleAllOptions = {}) => {
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if (props.accordion) {
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return
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}
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if (isBoolean(options)) {
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options = { expanded: options }
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}
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const { expanded, skipDisabled } = options
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const names: string[] = []
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children.forEach((item, index) => {
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if (item.disabled && skipDisabled) {
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if (item.$.exposed!.getExpanded()) {
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names.push(item.name || index)
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}
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} else if (isDef(expanded) ? expanded : !item.$.exposed!.getExpanded()) {
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names.push(item.name || index)
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}
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})
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updateChange(names)
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}
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/**
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* 查看更多点击
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*/
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function handleMore() {
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emit('update:modelValue', !props.modelValue)
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emit('change', {
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value: !props.modelValue
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})
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}
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defineExpose<CollapseExpose>({
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toggleAll
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})
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</script>
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<style lang="scss" scoped>
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@import './index.scss';
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</style>
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