From bfafe15df79718c389698f939e9097263685fc56 Mon Sep 17 00:00:00 2001
From: cxc <quantulr@outlook.com>
Date: Thu, 5 Jan 2023 11:08:01 +0800
Subject: [PATCH] no start event node warning

---
 src/components/ProcessDesigner/index.vue | 14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)

diff --git a/src/components/ProcessDesigner/index.vue b/src/components/ProcessDesigner/index.vue
index 8abacaf..f8ac74d 100644
--- a/src/components/ProcessDesigner/index.vue
+++ b/src/components/ProcessDesigner/index.vue
@@ -35,7 +35,7 @@ import "@/plugins/package/theme/index.scss";
 import CustomContentPadProvider from "@/plugins/package/designer/plugins/content-pad";
 import CustomPaletteProvider from "@/plugins/package/designer/plugins/palette";
 import { ref, nextTick, reactive, toRefs } from "vue";
-import { ElMessageBox } from "element-plus";
+import { ElMessage, ElMessageBox } from "element-plus";
 
 const props = defineProps({
   bpmnXml: {
@@ -49,7 +49,6 @@ const props = defineProps({
 });
 const { bpmnXml, designerForm } = toRefs(props);
 let element;
-let msgInstance;
 const modeler = ref(null);
 const height = ref(document.documentElement.clientHeight - 94.5 + "px;");
 const xmlString = ref(bpmnXml.value);
@@ -88,6 +87,14 @@ function handlerEvent(eventName) {
 
 function goToFormSelect() {
   if (!window.bpmnInstances) return;
+  const startEle = window.bpmnInstances.elementRegistry.find(
+    (el) => el.type == "bpmn:StartEvent"
+  );
+  if (!startEle) {
+    ElMessage.warning("请添加开始节点");
+    return;
+  }
+
   const formKeyExist =
     !!window.bpmnInstances.elementRegistry.find(
       (el) => el.type == "bpmn:StartEvent"
@@ -99,9 +106,6 @@ function goToFormSelect() {
       icon: "warning",
     })
       .then(() => {
-        const startEle = window.bpmnInstances.elementRegistry.find(
-          (el) => el.type == "bpmn:StartEvent"
-        );
         const EventBus = window.bpmnInstances.eventBus;
         startEle && EventBus.fire("element.click", { element: startEle });
         nextTick(() => {