111 lines
2.7 KiB
Vue
111 lines
2.7 KiB
Vue
<docs>
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---
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order: 7
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title:
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zh-CN: 树穿梭框
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en-US: Tree Transfer
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---
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## zh-CN
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使用 Tree 组件作为自定义渲染列表。
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## en-US
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Customize render list with Tree component.
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</docs>
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<template>
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<div>
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<a-transfer
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v-model:target-keys="targetKeys"
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class="tree-transfer"
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:data-source="dataSource"
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:render="item => item.title"
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:show-select-all="false"
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>
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<template #children="{ direction, selectedKeys, onItemSelect }">
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<a-tree
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v-if="direction === 'left'"
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block-node
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checkable
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check-strictly
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default-expand-all
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:checked-keys="[...selectedKeys, ...targetKeys]"
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:tree-data="treeData"
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@check="
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(_, props) => {
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onChecked(props, [...selectedKeys, ...targetKeys], onItemSelect);
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}
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"
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@select="
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(_, props) => {
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onChecked(props, [...selectedKeys, ...targetKeys], onItemSelect);
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}
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"
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/>
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</template>
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</a-transfer>
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</div>
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</template>
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<script lang="ts" setup>
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import { computed, ref } from 'vue';
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import type { TransferProps, TreeProps } from 'ant-design-vue';
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const tData: TransferProps['dataSource'] = [
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{ key: '0-0', title: '0-0' },
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{
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key: '0-1',
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title: '0-1',
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children: [
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{ key: '0-1-0', title: '0-1-0' },
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{ key: '0-1-1', title: '0-1-1' },
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],
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},
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{ key: '0-2', title: '0-3' },
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];
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const transferDataSource: TransferProps['dataSource'] = [];
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function flatten(list: TransferProps['dataSource'] = []) {
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list.forEach(item => {
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transferDataSource.push(item);
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flatten(item.children);
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});
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}
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flatten(JSON.parse(JSON.stringify(tData)));
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function isChecked(selectedKeys: (string | number)[], eventKey: string | number) {
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return selectedKeys.indexOf(eventKey) !== -1;
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}
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function handleTreeData(treeNodes: TransferProps['dataSource'], targetKeys: string[] = []) {
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return treeNodes.map(({ children, ...props }) => ({
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...props,
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disabled: targetKeys.includes(props.key as string),
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children: handleTreeData(children ?? [], targetKeys),
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}));
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}
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const targetKeys = ref<string[]>([]);
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const dataSource = ref(transferDataSource);
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const treeData = computed(() => {
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return handleTreeData(tData, targetKeys.value);
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});
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const onChecked = (
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e: Parameters<TreeProps['onCheck']>[1] | Parameters<TreeProps['onSelect']>[1],
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checkedKeys: string[],
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onItemSelect: (n: any, c: boolean) => void,
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) => {
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const { eventKey } = e.node;
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onItemSelect(eventKey, !isChecked(checkedKeys, eventKey));
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};
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</script>
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<style scoped>
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.tree-transfer .ant-transfer-list:first-child {
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width: 50%;
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flex: none;
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}
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</style>
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