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<template>
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<view :class="`wd-tab ${customClass}`">
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<view v-if="painted" class="wd-tab__body" :style="isShow ? '' : 'display: none;'">
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<slot />
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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-tab',
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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 { getCurrentInstance, ref, watch } from 'vue'
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import { getType, isDef } from '../common/util'
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import { useParent } from '../composables/useParent'
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import { TABS_KEY } from '../wd-tabs/types'
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import { computed } from 'vue'
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interface Props {
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customClass?: string
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// 唯一标识符
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name?: string | number
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// tab的label
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title?: string
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// tab禁用，无法点击
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disabled?: boolean
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}
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const props = withDefaults(defineProps<Props>(), {
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customClass: '',
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disabled: false
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})
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const painted = ref<boolean>(false) // 初始状态tab不会渲染，必须通过tabs来设置painted使tab渲染
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const isShow = ref<boolean>(false)
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const { proxy } = getCurrentInstance() as any
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const { parent: tabs, index } = useParent(TABS_KEY)
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// 激活项下标
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const activeIndex = computed(() => {
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return isDef(tabs) ? tabs.state.activeIndex : 0
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})
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watch(
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() => props.name,
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(newValue) => {
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if (newValue && getType(newValue) !== 'number' && getType(newValue) !== 'string') {
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console.error('[wot design] error(wd-tab): the type of name should be number or string')
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return
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}
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if (tabs) {
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checkName(proxy)
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}
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},
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{
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deep: true,
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immediate: true
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}
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)
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watch(
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() => activeIndex.value,
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(newValue) => {
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if (newValue === index.value) {
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setShow(true, true)
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} else {
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setShow(painted.value, false)
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}
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},
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{ deep: true, immediate: true }
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)
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/**
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* @description 检测tab绑定的name是否和其它tab的name冲突
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* @param {Object} self 自身
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*/
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function checkName(self) {
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const { name: myName } = props
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if (myName === undefined || myName === null || myName === '') {
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return
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}
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tabs &&
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tabs.children.forEach((child: any) => {
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if (child.$.uid !== self.$.uid && child.name === myName) {
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console.error(`The tab's bound value: ${myName} has been used`)
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}
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})
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}
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/**
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* 设置子组件展示
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* @param setPainted
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* @param setIsShow
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*/
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function setShow(setPainted: boolean, setIsShow: boolean) {
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painted.value = setPainted
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isShow.value = setIsShow
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}
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defineExpose({
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setShow,
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painted
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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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