feat(event): add changeDirection event for mind map direction changes

Author: SSShooter

src/dev.ts

@@ -167,8 +167,8 @@ mind.bus.addListener('selectNodes', nodes => {
 mind.bus.addListener('unselectNodes', nodes => {
   console.log('unselectNodes', nodes)
 })
-mind.bus.addListener('expandNode', node => {
-  console.log('expandNode: ', node)
+mind.bus.addListener('changeDirection', direction => {
+  console.log('changeDirection: ', direction)
 })
 
 const dl2 = async () => {

src/interact.ts

@@ -271,6 +271,7 @@ export const initLeft = function (this: MindElixirInstance) {
   this.direction = 0
   this.refresh()
   this.toCenter()
+  this.bus.fire('changeDirection', this.direction)
 }
 /**
  * @function
@@ -283,6 +284,7 @@ export const initRight = function (this: MindElixirInstance) {
   this.direction = 1
   this.refresh()
   this.toCenter()
+  this.bus.fire('changeDirection', this.direction)
 }
 /**
  * @function
@@ -295,6 +297,7 @@ export const initSide = function (this: MindElixirInstance) {
   this.direction = 2
   this.refresh()
   this.toCenter()
+  this.bus.fire('changeDirection', this.direction)
 }
 
 /**

src/utils/pubsub.ts

@@ -75,6 +75,7 @@ export type EventMap = {
   selectNodes: (nodeObj: NodeObj[]) => void
   unselectNodes: (nodeObj: NodeObj[]) => void
   expandNode: (nodeObj: NodeObj) => void
+  changeDirection: (direction: number) => void
   linkDiv: () => void
   scale: (scale: number) => void
   move: (data: { dx: number; dy: number }) => void