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127 lines
2.8 KiB
127 lines
2.8 KiB
10 months ago
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<template>
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<view class="tree_container">
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<block v-for="item in $props.treeData" :key="item.id">
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<view class="">
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<view :class="{'tree_label': true, 'active': item.id === $props.activeId}" @click="nodeClick(item)">
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<template v-if="item.children && item.children.length > 0">
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<view class="tree_icon">
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<view :class="{'icon': true ,'down': isOpen(item.id)}">
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<u-icon name="arrow-down-fill" color="#adafb6" size="26"></u-icon>
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</view>
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</view>
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</template>
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<text>{{item.title}}</text>
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</view>
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<!-- #ifdef H5 -->
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<view class="tree_item" :style="{'grid-template-rows': isOpen(item.id) ? '1fr' : '0fr'}">
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<!-- #endif -->
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<!-- #ifdef APP -->
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<view class="tree_item" :style="{'display': isOpen(item.id) ? 'block' : 'none'}">
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<!-- #endif -->
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<!-- #ifdef MP-WEIXIN -->
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<view class="tree_item" :style="{'display': isOpen(item.id) ? 'block' : 'none'}">
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<!-- #endif -->
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<template v-if="item.children && item.children.length > 0">
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<MyTree :treeData="item.children" @node-click="$emit('node-click', $event)"
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:activeId="$props.activeId"></MyTree>
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</template>
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</view>
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</view>
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</block>
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</view>
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</template>
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<script setup lang="ts">
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import { defineProps, ref } from 'vue';
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const $props = defineProps(["treeData", 'activeId'])
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console.log('$props :>> ', $props);
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const $emit = defineEmits(["node-click"])
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const expandedKeys = ref([])
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const treeData = $props.treeData
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const isOpen = (id) => {
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// 判断节点id在不在数组中，在则显示，不在则隐藏
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return expandedKeys.value.includes(id)
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}
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const nodeClick = (item) => {
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$emit("node-click", item)
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if (item.children && item.children.length) {
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let index = expandedKeys.value.indexOf(item.id)
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if (index > -1) {
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// 如果当前节点id存在数组中，则删除
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expandedKeys.value.splice(index, 1)
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} else {
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// 如果当前节点id不存在数组中，则添加
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expandedKeys.value.push(item.id)
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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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.tree_label {
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padding: 10upx 40upx;
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position: relative;
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&.active {
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background-color: var(--subjectColor);
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border-radius: 10upx;
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color: #fff;
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:deep(.u-icon__icon) {
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color: #fff !important;
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}
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}
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}
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.tree_item {
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margin-top: 10upx;
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padding-left: 40upx;
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}
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// 头部搜索
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.tree_item {
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display: grid;
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grid-template-rows: 0fr;
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transition: all 0.3s;
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// overflow: hidden;
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&>view {
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min-height: 0;
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overflow: hidden;
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}
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// &>div,
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// &>form {
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// }
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}
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.tree_icon {
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position: absolute;
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left: 5upx;
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top: 50%;
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transform: translateY(-50%);
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margin-right: 20upx;
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transform-origin: center;
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.icon {
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transition: all 0.3s;
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transform: rotate(-90deg);
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}
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.down {
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transform: rotate(0deg);
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}
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}
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</style>
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