<script setup lang="ts">
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import type { SimpleFlowNode } from '../../consts';
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import { getCurrentInstance, inject, nextTick, ref, watch } from 'vue';
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import { BpmNodeTypeEnum } from '@vben/constants';
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import { IconifyIcon } from '@vben/icons';
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import { cloneDeep, buildShortUUID as generateUUID } from '@vben/utils';
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import { Button, Input } from 'ant-design-vue';
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import {
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ConditionType,
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DEFAULT_CONDITION_GROUP_VALUE,
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NODE_DEFAULT_TEXT,
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} from '../../consts';
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import { getDefaultConditionNodeName, useTaskStatusClass } from '../../helpers';
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import ConditionNodeConfig from '../nodes-config/condition-node-config.vue';
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import ProcessNodeTree from '../process-node-tree.vue';
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import NodeHandler from './node-handler.vue';
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defineOptions({ name: 'ExclusiveNode' });
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const props = defineProps({
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flowNode: {
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type: Object as () => SimpleFlowNode,
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required: true,
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},
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});
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// 定义事件，更新父组件
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const emits = defineEmits<{
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findParentNode: [nodeList: SimpleFlowNode[], nodeType: number];
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recursiveFindParentNode: [
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nodeList: SimpleFlowNode[],
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currentNode: SimpleFlowNode,
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nodeType: number,
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];
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'update:modelValue': [node: SimpleFlowNode | undefined];
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}>();
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const { proxy } = getCurrentInstance() as any;
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// 是否只读
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const readonly = inject<boolean>('readonly');
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const currentNode = ref<SimpleFlowNode>(props.flowNode);
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watch(
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() => props.flowNode,
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(newValue) => {
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currentNode.value = newValue;
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},
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);
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// 条件节点名称输入框引用
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const inputRefs = ref<HTMLInputElement[]>([]);
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// 节点名称输入框显示状态
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const showInputs = ref<boolean[]>([]);
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// 监听显示状态变化
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watch(
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showInputs,
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(newValues) => {
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// 当状态为 true 时, 自动聚焦
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newValues.forEach((value, index) => {
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if (value) {
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// 当显示状态从 false 变为 true 时, 自动聚焦
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nextTick(() => {
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inputRefs.value[index]?.focus();
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});
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}
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});
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},
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{ deep: true },
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);
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// 修改节点名称
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function changeNodeName(index: number) {
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showInputs.value[index] = false;
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const conditionNode = currentNode.value.conditionNodes?.at(
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index,
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) as SimpleFlowNode;
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conditionNode.name =
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conditionNode.name ||
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getDefaultConditionNodeName(
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index,
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conditionNode.conditionSetting?.defaultFlow,
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);
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}
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// 点击条件名称
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function clickEvent(index: number) {
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showInputs.value[index] = true;
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}
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function conditionNodeConfig(nodeId: string) {
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if (readonly) {
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return;
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}
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const conditionNode = proxy.$refs[nodeId][0];
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conditionNode.open();
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}
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// 新增条件
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function addCondition() {
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const conditionNodes = currentNode.value.conditionNodes;
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if (conditionNodes) {
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const len = conditionNodes.length;
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const lastIndex = len - 1;
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const conditionData: SimpleFlowNode = {
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id: `Flow_${generateUUID()}`,
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name: `条件${len}`,
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showText: '',
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type: BpmNodeTypeEnum.CONDITION_NODE,
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childNode: undefined,
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conditionNodes: [],
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conditionSetting: {
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defaultFlow: false,
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conditionType: ConditionType.RULE,
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conditionGroups: cloneDeep(DEFAULT_CONDITION_GROUP_VALUE),
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},
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};
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conditionNodes.splice(lastIndex, 0, conditionData);
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}
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}
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// 删除条件
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function deleteCondition(index: number) {
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const conditionNodes = currentNode.value.conditionNodes;
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if (conditionNodes) {
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conditionNodes.splice(index, 1);
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if (conditionNodes.length === 1) {
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const childNode = currentNode.value.childNode;
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// 更新此节点为后续孩子节点
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emits('update:modelValue', childNode);
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}
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}
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}
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// 移动节点
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function moveNode(index: number, to: number) {
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// -1 ：向左 1： 向右
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if (
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currentNode.value.conditionNodes &&
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currentNode.value.conditionNodes[index]
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) {
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currentNode.value.conditionNodes[index] =
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currentNode.value.conditionNodes.splice(
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index + to,
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1,
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currentNode.value.conditionNodes[index],
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)[0] as SimpleFlowNode;
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}
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}
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// 递归从父节点中查询匹配的节点
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function recursiveFindParentNode(
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nodeList: SimpleFlowNode[],
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node: SimpleFlowNode,
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nodeType: number,
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) {
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if (!node || node.type === BpmNodeTypeEnum.START_USER_NODE) {
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return;
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}
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if (node.type === nodeType) {
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nodeList.push(node);
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}
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// 条件节点 (NodeType.CONDITION_NODE) 比较特殊。需要调用其父节点条件分支节点（NodeType.EXCLUSIVE_NODE) 继续查找
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emits('findParentNode', nodeList, nodeType);
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}
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</script>
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<template>
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<div class="branch-node-wrapper">
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<div class="branch-node-container">
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<div
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v-if="readonly"
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class="branch-node-readonly"
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:class="`${useTaskStatusClass(currentNode?.activityStatus)}`"
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>
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<span class="iconfont icon-exclusive icon-size condition"></span>
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</div>
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<Button v-else class="branch-node-add" @click="addCondition">
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添加条件
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</Button>
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<!-- 排他网关节点下面可以多个分支，每个分支第一个节点是条件节点 NodeType.CONDITION_NODE -->
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<div
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class="branch-node-item"
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v-for="(item, index) in currentNode.conditionNodes"
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:key="index"
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>
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<template v-if="index === 0">
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<div class="branch-line-first-top"></div>
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<div class="branch-line-first-bottom"></div>
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</template>
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<template v-if="index + 1 === currentNode.conditionNodes?.length">
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<div class="branch-line-last-top"></div>
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<div class="branch-line-last-bottom"></div>
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</template>
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<div class="node-wrapper">
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<div class="node-container">
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<div
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class="node-box"
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:class="[
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{ 'node-config-error': !item.showText },
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`${useTaskStatusClass(item.activityStatus)}`,
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]"
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>
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<div class="branch-node-title-container">
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<div v-if="!readonly && showInputs[index]">
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<Input
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:ref="
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(el) => {
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inputRefs[index] = el as HTMLInputElement;
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}
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"
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type="text"
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class="editable-title-input"
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@blur="changeNodeName(index)"
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@press-enter="changeNodeName(index)"
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v-model:value="item.name"
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/>
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</div>
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<div v-else class="branch-title" @click="clickEvent(index)">
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{{ item.name }}
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</div>
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<div class="branch-priority">优先级{{ index + 1 }}</div>
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</div>
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<div
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class="branch-node-content"
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@click="conditionNodeConfig(item.id)"
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>
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<div
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class="branch-node-text"
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:title="item.showText"
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v-if="item.showText"
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>
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{{ item.showText }}
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</div>
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<div class="branch-node-text" v-else>
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{{ NODE_DEFAULT_TEXT.get(BpmNodeTypeEnum.CONDITION_NODE) }}
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</div>
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</div>
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<div
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class="node-toolbar"
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v-if="
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!readonly && index + 1 !== currentNode.conditionNodes?.length
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"
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>
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<div class="toolbar-icon">
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<IconifyIcon
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color="#0089ff"
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icon="lucide:circle-x"
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:size="18"
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@click="deleteCondition(index)"
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/>
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</div>
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</div>
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<div
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class="branch-node-move move-node-left"
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v-if="
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!readonly &&
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index !== 0 &&
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index + 1 !== currentNode.conditionNodes?.length
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"
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@click="moveNode(index, -1)"
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>
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<IconifyIcon icon="lucide:chevron-left" />
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</div>
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<div
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class="branch-node-move move-node-right"
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v-if="
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!readonly &&
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currentNode.conditionNodes &&
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index < currentNode.conditionNodes.length - 2
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"
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@click="moveNode(index, 1)"
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>
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<IconifyIcon icon="lucide:chevron-right" />
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</div>
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</div>
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<NodeHandler
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v-model:child-node="item.childNode"
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:current-node="item"
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/>
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</div>
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</div>
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<!-- 条件节点配置 -->
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<ConditionNodeConfig
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:node-index="index"
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:condition-node="item"
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:ref="item.id"
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/>
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<!-- 递归显示子节点 -->
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<ProcessNodeTree
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v-if="item && item.childNode"
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:parent-node="item"
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v-model:flow-node="item.childNode"
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@recursive-find-parent-node="recursiveFindParentNode"
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/>
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</div>
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</div>
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<NodeHandler
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v-if="currentNode"
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v-model:child-node="currentNode.childNode"
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:current-node="currentNode"
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/>
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</div>
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</template>
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