Fix：修复多次粘贴节点时由于节点uid重复造成的渲染异常问题

simple-mind-map/package.json

@@ -1,6 +1,6 @@
 {
   "name": "simple-mind-map",
-  "version": "0.7.3",
+  "version": "0.7.3-fix.1",
   "description": "一个简单的web在线思维导图",
   "authors": [
     {

simple-mind-map/src/core/render/Render.js

@@ -512,7 +512,7 @@ class Render {
           uid: createUid(),
           ...(appointData || {})
         },
-        children: [...createUidForAppointNodes(appointChildren)]
+        children: [...createUidForAppointNodes(appointChildren, true)]
       }
       parent.nodeData.children.splice(index + 1, 0, newNodeData)
     })
@@ -558,7 +558,7 @@ class Render {
       const index = parent.nodeData.children.findIndex(item => {
         return item.data.uid === node.uid
       })
-      const newNodeList = createUidForAppointNodes(simpleDeepClone(nodeList))
+      const newNodeList = createUidForAppointNodes(simpleDeepClone(nodeList), true)
       parent.nodeData.children.splice(
         index + 1,
         0,
@@ -619,7 +619,7 @@ class Render {
           ...params,
           ...(appointData || {})
         },
-        children: [...createUidForAppointNodes(appointChildren)]
+        children: [...createUidForAppointNodes(appointChildren, true)]
       }
       node.nodeData.children.push(newNode)
       // 插入子节点时自动展开子节点
@@ -659,7 +659,7 @@ class Render {
       if (!node.nodeData.children) {
         node.nodeData.children = []
       }
-      childList = createUidForAppointNodes(childList)
+      childList = createUidForAppointNodes(childList, true)
       node.nodeData.children.push(...childList)
       // 插入子节点时自动展开子节点
       node.nodeData.data.expand = true
@@ -1071,7 +1071,9 @@ class Render {
     this.activeNodeList.forEach(node => {
       node.nodeData.children.push(
         ...data.map(item => {
-          return simpleDeepClone(item)
+          const newData = simpleDeepClone(item)
+          createUidForAppointNodes([newData], true)
+          return newData
         })
       )
     })

simple-mind-map/src/utils/index.js

@@ -167,11 +167,13 @@ export const copyNodeTree = (
   tree,
   root,
   removeActiveState = false,
-  keepId = false
+  removeId = true
 ) => {
   tree.data = simpleDeepClone(root.nodeData ? root.nodeData.data : root.data)
-  // 重新创建节点uid，因为节点uid不能重复
+  // 移除节点uid
-  if (!keepId) {
+  if (removeId) {
+    delete tree.data.uid
+  } else if (!tree.data.uid) {// 否则保留或生成
     tree.data.uid = createUid()
   }
   if (removeActiveState) {
@@ -180,7 +182,7 @@ export const copyNodeTree = (
   tree.children = []
   if (root.children && root.children.length > 0) {
     root.children.forEach((item, index) => {
-      tree.children[index] = copyNodeTree({}, item, removeActiveState, keepId)
+      tree.children[index] = copyNodeTree({}, item, removeActiveState, removeId)
     })
   } else if (
     root.nodeData &&
@@ -188,7 +190,7 @@ export const copyNodeTree = (
     root.nodeData.children.length > 0
   ) {
     root.nodeData.children.forEach((item, index) => {
-      tree.children[index] = copyNodeTree({}, item, removeActiveState, keepId)
+      tree.children[index] = copyNodeTree({}, item, removeActiveState, removeId)
     })
   }
   return tree
@@ -766,14 +768,15 @@ export const addDataToAppointNodes = (appointNodes, data = {}) => {
   return appointNodes
 }
 
-// 给指定的节点列表树数据添加uid，如果不存在的话，会修改原数据
+// 给指定的节点列表树数据添加uid，会修改原数据
-export const createUidForAppointNodes = appointNodes => {
+// createNewId默认为false，即如果节点不存在uid的话，会创建新的uid。如果传true，那么无论节点数据原来是否存在uid，都会创建新的uid
+export const createUidForAppointNodes = (appointNodes, createNewId = false) => {
   const walk = list => {
     list.forEach(node => {
       if (!node.data) {
         node.data = {}
       }
-      if (isUndef(node.data.uid)) {
+      if (createNewId || isUndef(node.data.uid)) {
         node.data.uid = createUid()
       }
       if (node.children && node.children.length > 0) {