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211
extensions/app/assets/base/BaseController.ts
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211
extensions/app/assets/base/BaseController.ts
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import { DEV } from 'cc/env';
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import { IReadOnly } from '../../../../assets/app-builtin/app-admin/executor';
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import { Logger } from '../lib/logger/logger';
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class CallbackInfo {
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public callback: Function = null;
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public target: unknown = null;
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public once = false;
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public constructor(callback: Function, target: unknown = null, once: boolean = false) {
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this.callback = callback;
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this.target = target;
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this.once = once;
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}
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}
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type Parameters<T extends (...args: any) => any> = T extends (...args: infer P) => any ? P : any;
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type AnyFunc = (...args: any[]) => any;
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class CallbackList {
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private callbacks: CallbackInfo[] = [];
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public size() {
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return this.callbacks.length;
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}
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public add(callback: Function, target: unknown = null, once: boolean = false) {
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this.callbacks.push(new CallbackInfo(callback, target, once));
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}
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public emit(args: any[]) {
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for (let index = 0; index < this.callbacks.length; index++) {
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const info = this.callbacks[index];
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// 先移除
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if (info.once) {
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this.callbacks.splice(index, 1);
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--index;
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}
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if (info.callback) {
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info.callback.apply(info.target, args);
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}
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}
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}
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public call(args: any[]) {
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if (this.callbacks.length === 0) return;
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const info = this.callbacks[0];
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// 先移除
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if (info.once) this.callbacks.splice(0, 1);
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if (!info.callback) return;
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return info.callback.apply(info.target, args);
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}
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public remove(callback: Function, target: unknown = null) {
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for (let index = this.callbacks.length - 1; index >= 0; index--) {
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const info = this.callbacks[index];
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if (info.callback !== callback || info.target !== target) continue;
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this.callbacks.splice(index, 1);
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}
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}
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public removeByCallback(callback: Function) {
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for (let index = this.callbacks.length - 1; index >= 0; index--) {
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const info = this.callbacks[index];
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if (info.callback !== callback) continue;
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this.callbacks.splice(index, 1);
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}
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}
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public removeByTarget(target: unknown) {
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for (let index = this.callbacks.length - 1; index >= 0; index--) {
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const info = this.callbacks[index];
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if (info.target !== target) continue;
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this.callbacks.splice(index, 1);
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}
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}
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}
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class EventEmitter {
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private listeners: { [key in string]: CallbackList } = {};
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public on(event: string | number, cb: (...data: any[]) => void, target?: unknown) {
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if (!event.toString() || !cb) return;
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if (!this.listeners[event]) this.listeners[event] = new CallbackList();
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this.listeners[event].add(cb, target);
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}
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public once(event: string | number, cb: (...data: any[]) => void, target?: unknown) {
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if (!event.toString() || !cb) return;
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if (!this.listeners[event]) this.listeners[event] = new CallbackList();
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this.listeners[event].add(cb, target, true);
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}
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public off(event: string | number, cb: (...data: any[]) => void, target?: unknown) {
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if (!event.toString() || !cb) return;
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if (!this.listeners[event]) return;
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this.listeners[event].remove(cb, target);
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}
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public targetOff(target?: unknown) {
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if (!target) return;
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for (const key in this.listeners) {
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if (Object.prototype.hasOwnProperty.call(this.listeners, key)) {
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const element = this.listeners[key];
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element.removeByTarget(target);
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}
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}
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}
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public emit(event: string | number, args: any[]) {
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if (!event.toString()) return;
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if (!this.listeners[event]) return;
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this.listeners[event].emit(args);
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}
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public call(event: string | number, args: any[]) {
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if (!event.toString()) return;
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if (!this.listeners[event]) return;
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return this.listeners[event].call(args);
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}
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}
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export interface IBaseController<C, T extends { [key in string]?: AnyFunc }> {
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readonly inst: Readonly<C>
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//用于类型提示推导////////////////
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new(): SuperBaseController<T>//
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///////////////////////////////
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}
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class SuperBaseController<T extends { [key in string]?: AnyFunc }> {
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//用于类型提示推导//
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private t: T;////
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/////////////////
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private event = new EventEmitter();
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/**获取第一个事件回调的返回值 */
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protected call<K extends keyof T>(key: K, ...args: Parameters<T[K]>): ReturnType<T[K]> {
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return this.event.call.call(this.event, key, args);
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}
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/**发射事件 */
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protected emit<K extends keyof T>(key: K, ...args: Parameters<T[K]>): void {
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return this.event.emit.call(this.event, key, args);
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}
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private on(...args: any[]): void {
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return this.event.on.apply(this.event, args);
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}
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private once(...args: any[]): void {
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return this.event.once.apply(this.event, args);
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}
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private off(...args: any[]): void {
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return this.event.off.apply(this.event, args);
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}
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private targetOff(target: any): void {
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return this.event.targetOff.call(this.event, target);
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}
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/**打印日志 */
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protected get log(): Function {
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return Logger.create('log', '#4682b4', DEV ? `[${this['constructor'].name}] LOG` : `[${this['constructor'].name}] [LOG]`);
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}
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/**打印警告 */
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protected get warn(): Function {
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return Logger.create('warn', '#ff7f50', DEV ? `[${this['constructor'].name}] WARN` : `[${this['constructor'].name}] [WARN]`);
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}
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/**打印错误 */
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protected get error(): Function {
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return Logger.create('error', '#ff4757', DEV ? `[${this['constructor'].name}] ERROR` : `[${this['constructor'].name}] [ERROR]`);
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}
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}
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export default function BaseController<C, T extends { [key in string]?: AnyFunc } = any>() {
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return class BaseController extends SuperBaseController<T> {
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/**
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* 控制器事件
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*/
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public static Event: { [key in keyof T]: key } = new Proxy({} as any, {
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get: function (target, key) {
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if (target[key]) return target[key];
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target[key] = key;
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return key;
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}
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});
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private static _base_inst: IReadOnly<C> = null;
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/**
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* 控制器单例
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* - 尽量使用app.controller，可以避免因跨Bundle引用导致的问题，也可以避免Controller之间循环引用的问题
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*/
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public static get inst() {
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return this._base_inst;
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}
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constructor() {
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super();
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BaseController._base_inst = this as any;
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}
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};
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}
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