Fix：修复除了向右生长的结构，其他结构鼠标移入展开收起按钮位置时不会触发按钮显示的问题

simple-mind-map/src/core/render/node/Node.js

@@ -275,7 +275,8 @@ class Node {
       }
       this._unVisibleRectRegionNode.fill({
         color: 'transparent'
-      }).size(this.expandBtnSize, height).x(width).y(0)
+      })
+      this.renderer.layout.renderExpandBtnRect(this._unVisibleRectRegionNode, this.expandBtnSize, width, height, this)
       this.group.add(this._unVisibleRectRegionNode)
     }
     // 概要节点添加一个带所属节点id的类名
@@ -289,7 +290,7 @@ class Node {
       foreignObject.height(height)
       foreignObject.add(SVG(this._customNodeContent))
       this.group.add(foreignObject)
-      return 
+      return
     }
     // 图片节点
     let imgHeight = 0
@@ -433,7 +434,8 @@ class Node {
     // 右键菜单事件
     this.group.on('contextmenu', e => {
       // 按住ctrl键点击鼠标左键不知为何触发的是contextmenu事件
-      if (this.mindMap.opt.readonly || e.ctrlKey) {// || this.isGeneralization
+      if (this.mindMap.opt.readonly || e.ctrlKey) {
+        // || this.isGeneralization
         return
       }
       e.stopPropagation()
@@ -467,8 +469,11 @@ class Node {
     if (!this.group) {
       return
     }
-    let { enableNodeTransitionMove, nodeTransitionMoveDuration, alwaysShowExpandBtn } =
+    let {
-      this.mindMap.opt
+      enableNodeTransitionMove,
+      nodeTransitionMoveDuration,
+      alwaysShowExpandBtn
+    } = this.mindMap.opt
     if (alwaysShowExpandBtn) {
       // 需要移除展开收缩按钮
       if (this._expandBtn && this.nodeData.children.length <= 0) {
@@ -783,7 +788,7 @@ class Node {
 
   //  获取padding值
   getPaddingVale() {
-    let { isActive }= this.nodeData.data
+    let { isActive } = this.nodeData.data
     return {
       paddingX: this.getStyle('paddingX', true, isActive),
       paddingY: this.getStyle('paddingY', true, isActive)

simple-mind-map/src/layouts/CatalogOrganization.js

@@ -349,6 +349,11 @@ class CatalogOrganization extends Base {
     gNode.left = right + generalizationNodeMargin
     gNode.top = top + (bottom - top - gNode.height) / 2
   }
+
+  // 渲染展开收起按钮的隐藏占位元素
+  renderExpandBtnRect(rect, expandBtnSize, width, height, node) {
+    rect.size(width, expandBtnSize).x(0).y(height)
+  }
 }
 
 export default CatalogOrganization

simple-mind-map/src/layouts/Fishbone.js

@@ -239,7 +239,7 @@ class Fishbone extends Base {
       // 当前节点是根节点
       // 根节点的子节点是和根节点同一水平线排列
       let maxx = -Infinity
-      node.children.forEach((item) => {
+      node.children.forEach(item => {
         if (item.left > maxx) {
           maxx = item.left
         }
@@ -250,15 +250,15 @@ class Fishbone extends Base {
         let line = this.draw.path()
         if (this.checkIsTop(item)) {
           line.plot(
-            `M ${nodeLineX - offsetX},${item.top + item.height + offset} L ${item.left},${
+            `M ${nodeLineX - offsetX},${item.top + item.height + offset} L ${
-              item.top + item.height
+              item.left
-            }`
+            },${item.top + item.height}`
           )
         } else {
           line.plot(
-            `M ${nodeLineX - offsetX},${
+            `M ${nodeLineX - offsetX},${item.top - offset} L ${nodeLineX},${
-              item.top - offset
+              item.top
-            } L ${nodeLineX},${item.top}`
+            }`
           )
         }
         node.style.line(line)
@@ -373,6 +373,27 @@ class Fishbone extends Base {
     gNode.left = right + generalizationNodeMargin
     gNode.top = top + (bottom - top - gNode.height) / 2
   }
+
+  // 渲染展开收起按钮的隐藏占位元素
+  renderExpandBtnRect(rect, expandBtnSize, width, height, node) {
+    let dir = ''
+    if (node.dir === CONSTANTS.LAYOUT_GROW_DIR.TOP) {
+      dir =
+        node.layerIndex === 1
+          ? CONSTANTS.LAYOUT_GROW_DIR.TOP
+          : CONSTANTS.LAYOUT_GROW_DIR.BOTTOM
+    } else {
+      dir =
+        node.layerIndex === 1
+          ? CONSTANTS.LAYOUT_GROW_DIR.BOTTOM
+          : CONSTANTS.LAYOUT_GROW_DIR.TOP
+    }
+    if (dir === CONSTANTS.LAYOUT_GROW_DIR.TOP) {
+      rect.size(width, expandBtnSize).x(0).y(-expandBtnSize)
+    } else {
+      rect.size(width, expandBtnSize).x(0).y(height)
+    }
+  }
 }
 
 export default Fishbone

simple-mind-map/src/layouts/LogicalStructure.js

@@ -172,9 +172,7 @@ class LogicalStructure extends Base {
       let x2 = item.left
       let y2 = item.top + item.height / 2
       // 节点使用横线风格，需要额外渲染横线
-      let nodeUseLineStyleOffset = nodeUseLineStyle
+      let nodeUseLineStyleOffset = nodeUseLineStyle ? item.width : 0
-        ? item.width
-        : 0
       y1 = nodeUseLineStyle && !node.isRoot ? y1 + height / 2 : y1
       y2 = nodeUseLineStyle ? y2 + item.height / 2 : y2
       let path = `M ${x1},${y1} L ${x1 + s1},${y1} L ${x1 + s1},${y2} L ${
@@ -260,10 +258,7 @@ class LogicalStructure extends Base {
     if (_x === translateX && _y === translateY) {
       return
     }
-    btn.translate(
+    btn.translate(_x - translateX, _y - translateY)
-      _x - translateX,
-      _y - translateY
-    )
   }
 
   //  创建概要节点
@@ -286,6 +281,11 @@ class LogicalStructure extends Base {
     gNode.left = right + generalizationNodeMargin
     gNode.top = top + (bottom - top - gNode.height) / 2
   }
+
+  // 渲染展开收起按钮的隐藏占位元素
+  renderExpandBtnRect(rect, expandBtnSize, width, height, node) {
+    rect.size(expandBtnSize, height).x(width).y(0)
+  }
 }
 
 export default LogicalStructure

simple-mind-map/src/layouts/MindMap.js

@@ -46,7 +46,10 @@ class MindMap extends Base {
             newNode.dir = parent._node.dir
           } else {
             // 节点生长方向
-            newNode.dir = index % 2 === 0 ? CONSTANTS.LAYOUT_GROW_DIR.RIGHT : CONSTANTS.LAYOUT_GROW_DIR.LEFT
+            newNode.dir =
+              index % 2 === 0
+                ? CONSTANTS.LAYOUT_GROW_DIR.RIGHT
+                : CONSTANTS.LAYOUT_GROW_DIR.LEFT
           }
           // 根据生长方向定位到父节点的左侧或右侧
           newNode.left =
@@ -163,7 +166,10 @@ class MindMap extends Base {
           return
         }
         let _offset = 0
-        let addHeight = item.dir === CONSTANTS.LAYOUT_GROW_DIR.LEFT ? leftAddHeight : rightAddHeight
+        let addHeight =
+          item.dir === CONSTANTS.LAYOUT_GROW_DIR.LEFT
+            ? leftAddHeight
+            : rightAddHeight
         // 上面的节点往上移
         if (_index < index) {
           _offset = -addHeight
@@ -209,9 +215,7 @@ class MindMap extends Base {
       let x1 = 0
       let _s = 0
       // 节点使用横线风格，需要额外渲染横线
-      let nodeUseLineStyleOffset = nodeUseLineStyle
+      let nodeUseLineStyleOffset = nodeUseLineStyle ? item.width : 0
-        ? item.width
-        : 0
       if (item.dir === CONSTANTS.LAYOUT_GROW_DIR.LEFT) {
         _s = -s1
         x1 = node.layerIndex === 0 ? left : left - expandBtnSize
@@ -221,7 +225,10 @@ class MindMap extends Base {
         x1 = node.layerIndex === 0 ? left + width : left + width + expandBtnSize
       }
       let y1 = top + height / 2
-      let x2 = item.dir === CONSTANTS.LAYOUT_GROW_DIR.LEFT ? item.left + item.width : item.left
+      let x2 =
+        item.dir === CONSTANTS.LAYOUT_GROW_DIR.LEFT
+          ? item.left + item.width
+          : item.left
       let y2 = item.top + item.height / 2
       y1 = nodeUseLineStyle && !node.isRoot ? y1 + height / 2 : y1
       y2 = nodeUseLineStyle ? y2 + item.height / 2 : y2
@@ -251,7 +258,10 @@ class MindMap extends Base {
           ? left - expandBtnSize
           : left + width + expandBtnSize
       let y1 = top + height / 2
-      let x2 = item.dir === CONSTANTS.LAYOUT_GROW_DIR.LEFT ? item.left + item.width : item.left
+      let x2 =
+        item.dir === CONSTANTS.LAYOUT_GROW_DIR.LEFT
+          ? item.left + item.width
+          : item.left
       let y2 = item.top + item.height / 2
       y1 = nodeUseLineStyle && !node.isRoot ? y1 + height / 2 : y1
       y2 = nodeUseLineStyle ? y2 + item.height / 2 : y2
@@ -288,7 +298,10 @@ class MindMap extends Base {
           ? left - expandBtnSize
           : left + width + expandBtnSize
       let y1 = top + height / 2
-      let x2 = item.dir === CONSTANTS.LAYOUT_GROW_DIR.LEFT ? item.left + item.width : item.left
+      let x2 =
+        item.dir === CONSTANTS.LAYOUT_GROW_DIR.LEFT
+          ? item.left + item.width
+          : item.left
       let y2 = item.top + item.height / 2
       let path = ''
       y1 = nodeUseLineStyle && !node.isRoot ? y1 + height / 2 : y1
@@ -321,7 +334,8 @@ class MindMap extends Base {
       ? height / 2
       : 0
     // 位置没有变化则返回
-    let _x = (node.dir === CONSTANTS.LAYOUT_GROW_DIR.LEFT ? 0 - expandBtnSize : width)
+    let _x =
+      node.dir === CONSTANTS.LAYOUT_GROW_DIR.LEFT ? 0 - expandBtnSize : width
     let _y = height / 2 + nodeUseLineStyleOffset
     if (_x === translateX && _y === translateY) {
       return
@@ -359,6 +373,15 @@ class MindMap extends Base {
       (isLeft ? gNode.width : 0)
     gNode.top = top + (bottom - top - gNode.height) / 2
   }
+
+  // 渲染展开收起按钮的隐藏占位元素
+  renderExpandBtnRect(rect, expandBtnSize, width, height, node) {
+    if (node.dir === CONSTANTS.LAYOUT_GROW_DIR.LEFT) {
+      rect.size(expandBtnSize, height).x(-expandBtnSize).y(0)
+    } else {
+      rect.size(expandBtnSize, height).x(width).y(0)
+    }
+  }
 }
 
 export default MindMap

simple-mind-map/src/layouts/OrganizationStructure.js

@@ -255,6 +255,11 @@ class OrganizationStructure extends Base {
     gNode.top = bottom + generalizationNodeMargin
     gNode.left = left + (right - left - gNode.width) / 2
   }
+
+  // 渲染展开收起按钮的隐藏占位元素
+  renderExpandBtnRect(rect, expandBtnSize, width, height, node) {
+    rect.size(width, expandBtnSize).x(0).y(height)
+  }
 }
 
 export default OrganizationStructure

simple-mind-map/src/layouts/Timeline.js

@@ -336,6 +336,28 @@ class Timeline extends Base {
     gNode.left = right + generalizationNodeMargin
     gNode.top = top + (bottom - top - gNode.height) / 2
   }
+
+  // 渲染展开收起按钮的隐藏占位元素
+  renderExpandBtnRect(rect, expandBtnSize, width, height, node) {
+    if (this.layout === CONSTANTS.LAYOUT.TIMELINE) {
+      rect.size(width, expandBtnSize).x(0).y(height)
+    } else {
+      let dir = ''
+      if (node.dir === CONSTANTS.LAYOUT_GROW_DIR.TOP) {
+        dir =
+          node.layerIndex === 1
+            ? CONSTANTS.LAYOUT_GROW_DIR.TOP
+            : CONSTANTS.LAYOUT_GROW_DIR.BOTTOM
+      } else {
+        dir = CONSTANTS.LAYOUT_GROW_DIR.BOTTOM
+      }
+      if (dir === CONSTANTS.LAYOUT_GROW_DIR.TOP) {
+        rect.size(width, expandBtnSize).x(0).y(-expandBtnSize)
+      } else {
+        rect.size(width, expandBtnSize).x(0).y(height)
+      }
+    }
+  }
 }
 
 export default Timeline

simple-mind-map/src/layouts/VerticalTimeline.js

@@ -46,7 +46,10 @@ class VerticalTimeline extends Base {
           if (parent._node.dir) {
             newNode.dir = parent._node.dir
           } else {
-            newNode.dir = index % 2 === 0 ? CONSTANTS.LAYOUT_GROW_DIR.RIGHT : CONSTANTS.LAYOUT_GROW_DIR.LEFT
+            newNode.dir =
+              index % 2 === 0
+                ? CONSTANTS.LAYOUT_GROW_DIR.RIGHT
+                : CONSTANTS.LAYOUT_GROW_DIR.LEFT
           }
           // 定位二级节点的left
           if (parent._node.isRoot) {
@@ -321,7 +324,10 @@ class VerticalTimeline extends Base {
             ? left - expandBtnSize
             : left + width + expandBtnSize
         let y1 = top + height / 2
-        let x2 = item.dir === CONSTANTS.LAYOUT_GROW_DIR.LEFT ? item.left + item.width : item.left
+        let x2 =
+          item.dir === CONSTANTS.LAYOUT_GROW_DIR.LEFT
+            ? item.left + item.width
+            : item.left
         let y2 = item.top + item.height / 2
         let path = `M ${x1},${y1} L ${x2},${y2}`
         lines[index].plot(path)
@@ -358,7 +364,10 @@ class VerticalTimeline extends Base {
             ? left - expandBtnSize
             : left + width + expandBtnSize
         let y1 = top + height / 2
-        let x2 = item.dir === CONSTANTS.LAYOUT_GROW_DIR.LEFT ? item.left + item.width : item.left
+        let x2 =
+          item.dir === CONSTANTS.LAYOUT_GROW_DIR.LEFT
+            ? item.left + item.width
+            : item.left
         let y2 = item.top + item.height / 2
         let path = this.cubicBezierPath(x1, y1, x2, y2)
         lines[index].plot(path)
@@ -408,6 +417,15 @@ class VerticalTimeline extends Base {
       (isLeft ? gNode.width : 0)
     gNode.top = top + (bottom - top - gNode.height) / 2
   }
+
+  // 渲染展开收起按钮的隐藏占位元素
+  renderExpandBtnRect(rect, expandBtnSize, width, height, node) {
+    if (node.dir === CONSTANTS.LAYOUT_GROW_DIR.LEFT) {
+      rect.size(expandBtnSize, height).x(-expandBtnSize).y(0)
+    } else {
+      rect.size(expandBtnSize, height).x(width).y(0)
+    }
+  }
 }
 
 export default VerticalTimeline