From e936068a247e5092e108378e582f5d3544d1f9a6 Mon Sep 17 00:00:00 2001
From: mike-lsadigital <mike@lsadigital.com>
Date: Wed, 4 Feb 2026 14:47:49 -0500
Subject: [PATCH] feat(xmind): Import relationships as associative lines

When parsing XMind files, the relationships array is now processed to
create associative lines between nodes. Each relationship's source and
target nodes are mapped to SimpleMindMap UIDs, and the relationship
title is preserved as the associative line label.

This enables users to import XMind files that contain non-hierarchical
relationships and see them rendered as associative lines in SimpleMindMap.

Co-authored-by: Cursor <cursoragent@cursor.com>
---
 simple-mind-map/src/parse/xmind.js | 60 +++++++++++++++++++++++++++++-
 1 file changed, 59 insertions(+), 1 deletion(-)

diff --git a/simple-mind-map/src/parse/xmind.js b/simple-mind-map/src/parse/xmind.js
index d2bce01f..ede69c07 100644
--- a/simple-mind-map/src/parse/xmind.js
+++ b/simple-mind-map/src/parse/xmind.js
@@ -1,5 +1,6 @@
 import JSZip from 'jszip'
 import xmlConvert from 'xml-js'
+import { v4 as uuid } from 'uuid'
 import { getTextFromHtml, isUndef } from '../utils/index'
 import {
   getSummaryText,
@@ -48,9 +49,15 @@ const parseXmindFile = (file, handleMultiCanvas) => {
 }
 
 //  转换xmind数据
+//  PATCHED: relationships - Added support for importing XMind relationships as associative lines
 const transformXmind = async (content, files, handleMultiCanvas) => {
   content = JSON.parse(content)
   let data = null
+  
+  // PATCH: Map xmind node IDs to SimpleMindMap UIDs
+  const xmindIdToUid = new Map()
+  const uidToNewNode = new Map()
+  
   if (content.length > 1 && typeof handleMultiCanvas === 'function') {
     data = await handleMultiCanvas(content)
   }
@@ -60,11 +67,24 @@ const transformXmind = async (content, files, handleMultiCanvas) => {
   const nodeTree = data.rootTopic
   const newTree = {}
   const waitLoadImageList = []
+  
   const walk = async (node, newNode) => {
+    // PATCH: Generate UID for this node
+    const nodeUid = uuid()
+    
     newNode.data = {
       // 节点内容
-      text: isUndef(node.title) ? '' : node.title
+      text: isUndef(node.title) ? '' : node.title,
+      // PATCH: Assign UID to node
+      uid: nodeUid
     }
+    
+    // PATCH: Store mapping from xmind ID to our UID
+    if (node.id) {
+      xmindIdToUid.set(node.id, nodeUid)
+      uidToNewNode.set(nodeUid, newNode)
+    }
+    
     // 节点备注
     if (node.notes) {
       const notesData = node.notes.realHTML || node.notes.plain
@@ -118,6 +138,44 @@ const transformXmind = async (content, files, handleMultiCanvas) => {
   }
   walk(nodeTree, newTree)
   await Promise.all(waitLoadImageList)
+  
+  // PATCH: Process relationships (associative lines)
+  const relationships = data.relationships || []
+  if (relationships.length > 0) {
+    relationships.forEach(rel => {
+      const sourceXmindId = rel.end1Id
+      const targetXmindId = rel.end2Id
+      const relationshipTitle = rel.title || ''
+      
+      // Get the SimpleMindMap UIDs
+      const sourceUid = xmindIdToUid.get(sourceXmindId)
+      const targetUid = xmindIdToUid.get(targetXmindId)
+      
+      if (sourceUid && targetUid) {
+        const sourceNode = uidToNewNode.get(sourceUid)
+        if (sourceNode && sourceNode.data) {
+          // Initialize associative line arrays if not present
+          if (!sourceNode.data.associativeLineTargets) {
+            sourceNode.data.associativeLineTargets = []
+          }
+          if (!sourceNode.data.associativeLineText) {
+            sourceNode.data.associativeLineText = {}
+          }
+          
+          // Add the target UID to the associative line targets
+          if (!sourceNode.data.associativeLineTargets.includes(targetUid)) {
+            sourceNode.data.associativeLineTargets.push(targetUid)
+          }
+          
+          // Add the relationship title/label
+          if (relationshipTitle) {
+            sourceNode.data.associativeLineText[targetUid] = relationshipTitle
+          }
+        }
+      }
+    })
+  }
+  
   return newTree
 }