refactor: use EventEmitter from @dedot/utils

Author: 1cedrus

packages/typink/package.json

@@ -13,7 +13,6 @@
   },
   "dependencies": {
     "dedot": "^0.6.1",
-    "eventemitter3": "^5.0.1",
     "fast-deep-equal": "^3.1.3",
     "react": "^18.3.1",
     "react-use": "^17.6.0"

packages/typink/src/utils/events.ts

@@ -1,4 +1,4 @@
-import { EventEmitter as EE } from 'eventemitter3';
+import { EventEmitter } from 'dedot/utils'
 import type { FrameSystemEventRecord } from 'dedot/chaintypes';
 
 export type SystemEventsListener = (events: FrameSystemEventRecord[]) => void;
@@ -8,76 +8,6 @@ export enum InternalEvent {
   SystemEvents = 'SYSTEM_EVENTS',
 }
 
-export interface IEventEmitter<EventTypes extends string = string> {
-  on(event: EventTypes, handler: HandlerFn): Unsub;
-  once(event: EventTypes, handler: HandlerFn): Unsub;
-  off(event: EventTypes, handler?: HandlerFn): this;
-}
-
-const handlerWrapper = (handler: HandlerFn): HandlerFn => {
-  return (...args: any[]) => {
-    try {
-      handler(...args);
-    } catch {
-      // ignore this!
-    }
-  };
-};
-
-export class EventEmitter<EventTypes extends string = string> implements IEventEmitter<EventTypes> {
-  #emitter: EE;
-  #mapper: Map<HandlerFn, HandlerFn>;
-
-  constructor() {
-    this.#emitter = new EE();
-    this.#mapper = new Map();
-  }
-
-  emit(event: EventTypes, ...args: any[]): boolean {
-    return this.#emitter.emit(event, ...args);
-  }
-
-  protected clearEvents() {
-    this.#emitter.removeAllListeners();
-    this.#mapper.clear();
-  }
-
-  public on(event: EventTypes, handler: HandlerFn): Unsub {
-    const wrapper = handlerWrapper(handler);
-    this.#mapper.set(handler, wrapper);
-    this.#emitter.on(event, wrapper);
-
-    return () => {
-      this.off(event, handler);
-    };
-  }
-
-  public once(event: EventTypes, handler: HandlerFn): Unsub {
-    const wrapper = handlerWrapper(handler);
-    this.#mapper.set(handler, wrapper);
-
-    this.#emitter.once(event, wrapper);
-
-    return () => {
-      this.off(event, handler);
-    };
-  }
-
-  public off(event: EventTypes, handler?: HandlerFn): this {
-    if (handler) {
-      const wrapper = this.#mapper.get(handler);
-      if (!wrapper) return this;
-
-      this.#emitter.off(event, wrapper);
-      this.#mapper.delete(handler);
-    } else {
-      this.#emitter.off(event);
-    }
-
-    return this;
-  }
-}
-
 export default new EventEmitter();
 
 

yarn.lock

@@ -13259,7 +13259,6 @@ __metadata:
   dependencies:
     "@types/react": "npm:^18.3.16"
     dedot: "npm:^0.6.1"
-    eventemitter3: "npm:^5.0.1"
     fast-deep-equal: "npm:^3.1.3"
     react: "npm:^18.3.1"
     react-use: "npm:^17.6.0"