feat：新增当泄漏区出现节点时的事件

src/Common/eventBus.ts

@@ -0,0 +1,38 @@
+
+
+export interface EventBusInterface {
+    events: { [key: string]: Function[] };
+    on(eventName: string, callback: Function): void;
+    emit(eventName: string, payload?: any): void;
+}
+
+
+export const EventBus: EventBusInterface = {
+    events: { },
+
+    /**
+     * 绑定事件
+     * @param eventName 
+     * @param callback 
+     */
+    on(eventName: string, callback: Function) {
+        if(EventBus.events[eventName] === undefined) {
+            EventBus.events[eventName] = [];
+        }
+
+        EventBus.events[eventName].push(callback);
+    },
+
+    /**
+     * 
+     * @param eventName 
+     * @param payload 
+     */
+    emit(eventName: string, payload?: any) {
+        if(EventBus.events[eventName] === undefined) {
+            return;
+        }
+
+        EventBus.events[eventName].map(item => item(payload));
+    }
+};