<template>
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<view class="tn-tree-node-class tn-tree-node">
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<view class="tn-tree__label" @tap="handleClick">
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<view
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v-if="node.children && node.children.length > 0 && triangle"
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class="tn-tree__triangle"
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:class="[{'tn-tree__triangle--90deg': !collapsed}]"
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></view>
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<view class="tn-tree__label__item">
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<view v-if="collapsed && node.image" class="tn-tree__label__item__image">
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<image :src="node.image" mode="widthFix"></image>
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</view>
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<view v-if="!collapsed && node.activeImage" class="tn-tree__label__item__image">
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<image :src="node.activeImage" mode="widthFix"></image>
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</view>
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<view class="tn-tree__label__item__text">{{ node.text }}</view>
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</view>
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</view>
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<view v-if="!collapsed && node.children && node.children.length > 0" class="tn-tree__children">
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<tn-tree-node
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v-for="(item, index) in node.children"
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:key="index"
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:node="item"
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:collapsible="collapsible"
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:triangle="triangle"
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@click="nodeClick"
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></tn-tree-node>
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</view>
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</view>
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</template>
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<script>
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//如果未开启easycom模式，请自行引入tn-tree-node组件
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export default {
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name: 'tn-tree-node',
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props: {
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// 节点信息
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node: {
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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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// 可以折叠
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collapsible: {
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type: Boolean,
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default: true
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},
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// 显示三角形
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triangle: {
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type: Boolean,
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default: true
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}
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},
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watch: {
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node(val) {
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if (val.collapsed !== this.collapsed && this.node.children && this.node.children.length > 0) {
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this.collapsed = val.collapsed
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}
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}
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},
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data() {
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return {
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// 标记是否折叠
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collapsed: true
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}
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},
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created() {
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if (this.node.collapsed === false) {
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this.collapsed = false
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}
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},
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methods: {
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// 处理点击
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handleClick(e) {
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if (this.collapsible && this.node.children && this.node.children.length > 0) {
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this.collapsed = !this.collapsed
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}
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this.$emit('click', this.node)
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},
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nodeClick(e) {
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this.$emit('click', e)
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}
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}
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}
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</script>
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<style lang="scss" scoped>
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.tn-tree-node {
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.tn-tree {
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&__label {
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position: relative;
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display: inline-flex;
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align-items: center;
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padding: 20rpx 30rpx;
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background-color: transparent;
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/* #ifdef H5 */
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cursor: pointer;
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/* #endif */
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// 字体抗锯齿
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-webkit-font-smoothing: antialiased;
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&__item {
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display: flex;
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flex-direction: row;
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align-items: center;
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&__image {
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width: 40rpx;
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height: 40rpx;
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margin-right: 16rpx;
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image {
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width: 100%;
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height: 100%;
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}
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}
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}
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}
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&__children {
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padding-left: 60rpx;
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position: relative;
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}
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&__triangle {
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width: 0;
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height: 0;
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border-top: 12rpx solid transparent;
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border-bottom: 12rpx solid transparent;
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border-left: 16rpx solid #080808;
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margin-right: 20rpx;
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transition: transform 0.25s ease-out;
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flex-shrink: 0;
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&--90deg {
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transform:rotate(90deg) translate3d(0, 0, 0);
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}
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}
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}
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}
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</style>
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