<template>
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<el-tree
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class="el-tree"
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v-loading="isLoading"
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:data="dataList"
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:props="defaultProps"
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@node-click="handleNodeClick"
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default-expand-all
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highlight-current
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check-on-click-node
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empty-text="暂无记录"
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>
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<template #default="{ node, data }">
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<slot :node="node" :data="data">
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<div
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:class="
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data.selected
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? 'selected-tree-node custom-tree-node'
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: 'custom-tree-node'
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"
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>
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<el-icon v-if="data.type == 0" color="var(--el-color-info)">
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<SuccessFilled/>
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</el-icon>
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<el-icon v-else-if="data.type == 1" color="var(--el-color-danger)">
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<QuestionFilled />
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</el-icon>
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<el-icon v-else-if="data.type == 2" color="var(--el-color-warning)">
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<QuestionFilled />
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</el-icon>
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<el-icon v-else-if="data.type == 3" color="var(--el-color-danger)">
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<WarnTriangleFilled />
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</el-icon>
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<el-icon v-else-if="data.type == 4" color="var(--el-color-danger)">
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<WarningFilled/>
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</el-icon>
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<el-icon v-else-if="data.type == 5" color="var(--el-color-warning)">
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<WarningFilled/>
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</el-icon>
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<el-icon v-else-if="data.type == 6" color="var(--el-color-success)">
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<SuccessFilled/>
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</el-icon>
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<div>{{ node.label }}</div>
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</div>
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</slot>
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</template>
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</el-tree>
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</template>
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<script>
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export default {
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props: {
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items: {
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type: Array,
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default: () => [
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{
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type: 0,
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title: 'title',
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categoly: '2022-10-10',
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data: {}
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}
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]
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},
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loading: Boolean
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},
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emits: ['itemClick'],
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data() {
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return {
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defaultProps: {
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children: 'children',
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label: 'title'
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},
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isLoading: this.loading
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};
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},
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computed: {
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dataList() {
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const _items = this.$props.items;
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_items.sort(function (a, b) {
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return b.type - a.type;
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});
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const itemMap = new Map();
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_items.forEach((t) => {
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itemMap.has(t.categoly)
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? itemMap.get(t.categoly).push(t)
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: itemMap.set(t.categoly, [t]);
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});
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const list = [];
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for (const [key, value] of itemMap) {
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const i = {
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title: key,
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children: []
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};
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value.forEach((v) => {
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i.children.push(v);
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});
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list.push(i);
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}
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list.sort(function (a, b) {
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if (b.title > a.title) {
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return 1;
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} else if (b.title < a.title) {
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return -1;
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} else {
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return 0;
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}
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});
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return list;
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}
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},
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watch: {
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loading(nValue) {
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this.isLoading = nValue;
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},
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//当数据第一次更新时
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dataList(nValue) {
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if (this.isLoading) {
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if (nValue.length > 0) {
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this.dataList.forEach((d) => {
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d.children.forEach((c) => {
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c.selected = false;
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});
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});
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if (nValue[0].children.length > 0) {
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const c = nValue[0].children[0];
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c.selected = true;
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this.$emit('itemClick', c);
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} else {
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nValue[0].selected = true;
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}
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}
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this.isLoading = false;
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}
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}
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},
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methods: {
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handleNodeClick(data) {
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this.dataList.forEach((d) => {
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d.children.forEach((c) => {
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c.selected = false;
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});
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});
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data.selected = true;
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//父节点的点击事件不做传递
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if (data.children == undefined) {
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this.$emit('itemClick', data);
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}
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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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.el-tree {
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// background-color: aliceblue;
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// width: var(--el-aside-width, 200px)
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}
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.custom-tree-node {
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display: flex;
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align-items: center;
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}
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.selected-tree-node {
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color: var(--el-color-primary);
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}
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</style>
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