126 lines
3.0 KiB
Vue
126 lines
3.0 KiB
Vue
<docs>
|
|
---
|
|
order: 4
|
|
title:
|
|
zh-CN: 可搜索
|
|
en-US: Searchable
|
|
---
|
|
|
|
## zh-CN
|
|
|
|
可搜索的树。
|
|
|
|
## en-US
|
|
|
|
Searchable Tree.
|
|
|
|
</docs>
|
|
|
|
<template>
|
|
<div>
|
|
<a-input-search v-model:value="searchValue" style="margin-bottom: 8px" placeholder="Search" />
|
|
<a-tree
|
|
:expanded-keys="expandedKeys"
|
|
:auto-expand-parent="autoExpandParent"
|
|
:tree-data="gData"
|
|
@expand="onExpand"
|
|
>
|
|
<template #title="{ title }">
|
|
<span v-if="title.indexOf(searchValue) > -1">
|
|
{{ title.substring(0, title.indexOf(searchValue)) }}
|
|
<span style="color: #f50">{{ searchValue }}</span>
|
|
{{ title.substring(title.indexOf(searchValue) + searchValue.length) }}
|
|
</span>
|
|
<span v-else>{{ title }}</span>
|
|
</template>
|
|
</a-tree>
|
|
</div>
|
|
</template>
|
|
|
|
<script lang="ts" setup>
|
|
import { ref, watch } from 'vue';
|
|
import type { TreeProps } from 'ant-design-vue';
|
|
|
|
const x = 3;
|
|
const y = 2;
|
|
const z = 1;
|
|
const genData: TreeProps['treeData'] = [];
|
|
|
|
const generateData = (_level: number, _preKey?: string, _tns?: TreeProps['treeData']) => {
|
|
const preKey = _preKey || '0';
|
|
const tns = _tns || genData;
|
|
|
|
const children = [];
|
|
for (let i = 0; i < x; i++) {
|
|
const key = `${preKey}-${i}`;
|
|
tns.push({ title: key, key });
|
|
if (i < y) {
|
|
children.push(key);
|
|
}
|
|
}
|
|
if (_level < 0) {
|
|
return tns;
|
|
}
|
|
const level = _level - 1;
|
|
children.forEach((key, index) => {
|
|
tns[index].children = [];
|
|
return generateData(level, key, tns[index].children);
|
|
});
|
|
};
|
|
generateData(z);
|
|
|
|
const dataList: TreeProps['treeData'] = [];
|
|
const generateList = (data: TreeProps['treeData']) => {
|
|
for (let i = 0; i < data.length; i++) {
|
|
const node = data[i];
|
|
const key = node.key;
|
|
dataList.push({ key, title: key });
|
|
if (node.children) {
|
|
generateList(node.children);
|
|
}
|
|
}
|
|
};
|
|
generateList(genData);
|
|
|
|
const getParentKey = (
|
|
key: string | number,
|
|
tree: TreeProps['treeData'],
|
|
): string | number | undefined => {
|
|
let parentKey;
|
|
for (let i = 0; i < tree.length; i++) {
|
|
const node = tree[i];
|
|
if (node.children) {
|
|
if (node.children.some(item => item.key === key)) {
|
|
parentKey = node.key;
|
|
} else if (getParentKey(key, node.children)) {
|
|
parentKey = getParentKey(key, node.children);
|
|
}
|
|
}
|
|
}
|
|
return parentKey;
|
|
};
|
|
const expandedKeys = ref<(string | number)[]>([]);
|
|
const searchValue = ref<string>('');
|
|
const autoExpandParent = ref<boolean>(true);
|
|
const gData = ref<TreeProps['treeData']>(genData);
|
|
|
|
const onExpand = (keys: string[]) => {
|
|
expandedKeys.value = keys;
|
|
autoExpandParent.value = false;
|
|
};
|
|
|
|
watch(searchValue, value => {
|
|
const expanded = dataList
|
|
.map((item: TreeProps['treeData'][number]) => {
|
|
if (item.title.indexOf(value) > -1) {
|
|
return getParentKey(item.key, gData.value);
|
|
}
|
|
return null;
|
|
})
|
|
.filter((item, i, self) => item && self.indexOf(item) === i);
|
|
expandedKeys.value = expanded;
|
|
searchValue.value = value;
|
|
autoExpandParent.value = true;
|
|
});
|
|
</script>
|