From ef9d8b0ea47f5ed552f182ebedb68b081c763d98 Mon Sep 17 00:00:00 2001
From: wanglin2 <1013335014@qq.com>
Date: Fri, 4 Aug 2023 09:11:02 +0800
Subject: [PATCH] =?UTF-8?q?Fix=EF=BC=9A=E4=BF=AE=E5=A4=8D=E7=A7=BB?=
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---
 simple-mind-map/package-lock.json               |  4 ++--
 simple-mind-map/src/constants/defaultOptions.js |  4 +++-
 simple-mind-map/src/plugins/Drag.js             | 14 ++++++++------
 3 files changed, 13 insertions(+), 9 deletions(-)

diff --git a/simple-mind-map/package-lock.json b/simple-mind-map/package-lock.json
index 29f719ea..160c304d 100644
--- a/simple-mind-map/package-lock.json
+++ b/simple-mind-map/package-lock.json
@@ -1,11 +1,11 @@
 {
   "name": "simple-mind-map",
-  "version": "0.6.7",
+  "version": "0.6.11-fix.1",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
-      "version": "0.6.7",
+      "version": "0.6.11-fix.1",
       "license": "MIT",
       "dependencies": {
         "@svgdotjs/svg.js": "^3.0.16",
diff --git a/simple-mind-map/src/constants/defaultOptions.js b/simple-mind-map/src/constants/defaultOptions.js
index babb77d5..2c72933e 100644
--- a/simple-mind-map/src/constants/defaultOptions.js
+++ b/simple-mind-map/src/constants/defaultOptions.js
@@ -124,5 +124,7 @@ export const defaultOpt = {
   // 自定义返回节点内容的方法
   customCreateNodeContent: null,
   // 指定内部一些元素（节点文本编辑元素、节点备注显示元素、关联线文本编辑元素、节点图片调整按钮元素）添加到的位置，默认添加到document.body下
-  customInnerElsAppendTo: null
+  customInnerElsAppendTo: null,
+  // 拖拽元素时，指示元素新位置的块的最大高度
+  nodeDragPlaceholderMaxSize: 20
 }
diff --git a/simple-mind-map/src/plugins/Drag.js b/simple-mind-map/src/plugins/Drag.js
index 1e54dd84..28a8b354 100644
--- a/simple-mind-map/src/plugins/Drag.js
+++ b/simple-mind-map/src/plugins/Drag.js
@@ -44,6 +44,7 @@ class Drag extends Base {
     this.mouseMoveY = 0
     // 鼠标移动的距离距鼠标按下的位置距离多少以上才认为是拖动事件
     this.checkDragOffset = 10
+    this.minOffset = 10
   }
 
   //  绑定事件
@@ -206,6 +207,7 @@ class Drag extends Base {
     if (!this.drawTransform) {
       return
     }
+    const { nodeDragPlaceholderMaxSize } = this.mindMap.opt 
     let x = this.mouseMoveX
     let y = this.mouseMoveY
     this.overlapNode = null
@@ -247,19 +249,19 @@ class Drag extends Base {
         let prevNodeRect = this.getNodeRect(prevBrother)  
         prevBrotherOffset = nodeRect.top - prevNodeRect.bottom
         // 间距小于10就当它不存在
-        prevBrotherOffset = prevBrotherOffset >= 10 ? prevBrotherOffset / 2 : 0
+        prevBrotherOffset = prevBrotherOffset >= this.minOffset ? prevBrotherOffset / 2 : 0
       } else {
         // 没有前一个兄弟节点，那么假设和前一个节点的距离为20
-        prevBrotherOffset = 10
+        prevBrotherOffset = this.minOffset
       }
       // 和后一个兄弟节点的距离
       let nextBrotherOffset = 0
       if (nextBrother) {
         let nextNodeRect = this.getNodeRect(nextBrother)
         nextBrotherOffset = nextNodeRect.top - nodeRect.bottom
-        nextBrotherOffset = nextBrotherOffset >= 10 ? nextBrotherOffset / 2 : 0
+        nextBrotherOffset = nextBrotherOffset >= this.minOffset ? nextBrotherOffset / 2 : 0
       } else {
-        nextBrotherOffset = 10
+        nextBrotherOffset = this.minOffset
       }
       if (nodeRect.left <= x && nodeRect.right >= x) {
         // 检测兄弟节点位置
@@ -272,11 +274,11 @@ class Drag extends Base {
             y >= nodeRect.top && y <= nodeRect.top + oneFourthHeight
           if (checkIsPrevNode) {
             this.prevNode = node
-            let size = nextBrotherOffset > 0 ? nextBrotherOffset : 5
+            let size = nextBrotherOffset > 0 ? Math.min(nextBrotherOffset, nodeDragPlaceholderMaxSize) : 5
             this.placeholder.size(node.width, size).move(nodeRect.originLeft, nodeRect.originBottom)
           } else if (checkIsNextNode) {
             this.nextNode = node
-            let size = prevBrotherOffset > 0 ? prevBrotherOffset : 5
+            let size = prevBrotherOffset > 0 ? Math.min(prevBrotherOffset, nodeDragPlaceholderMaxSize) : 5
             this.placeholder.size(node.width, size).move(nodeRect.originLeft, nodeRect.originTop - size)
           }
         }