79 lines
1.9 KiB
TypeScript
79 lines
1.9 KiB
TypeScript
/*
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* This file is part of the kernelstudio package.
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*
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* (c) 2014-2026 zlin <admin@kernelstudio.com>
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*
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* For the full copyright and license information, please view the LICENSE file
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* that was distributed with this source code.
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*/
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export class EventError {
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code: number;
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status: number;
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message: string | null;
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stack: string | null;
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constructor(code = 500, status = 500, message: string | null = null, stack: string | null = null) {
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this.code = code;
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this.status = status;
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this.message = message;
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this.stack = stack;
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}
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}
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export class EventListener {
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private _listeners: Record<string, Function[]>;
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constructor(listeners: Record<string, Function[]> = {}) {
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this._listeners = listeners;
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}
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all(): Record<string, Function[]> {
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return { ...this._listeners }; // 返回副本，避免外部直接修改
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}
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has(name: string): boolean {
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return Array.isArray(this._listeners[name]) && this._listeners[name].length > 0;
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}
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on(name: string, fn: Function): void {
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if (!Array.isArray(this._listeners[name])) {
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this._listeners[name] = [];
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}
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this._listeners[name].push(fn);
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}
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off(name: string): void {
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delete this._listeners[name];
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}
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emit(name: string, options?: any): void {
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const listeners = this._listeners[name];
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if (Array.isArray(listeners)) {
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// 复制一份避免在执行中修改数组导致问题
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[...listeners].forEach(f => f(options));
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}
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}
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clear(){
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for (const key in this._listeners) {
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if (this._listeners.hasOwnProperty(key)) {
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delete this._listeners[key];
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}
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}
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}
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}
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export const safePreventDefault = (event: any) => {
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if (event && typeof event.preventDefault === 'function') {
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event.preventDefault();
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}
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};
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export const safeStopPropagation = (event: any) => {
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if (event && typeof event.stopPropagation === 'function') {
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event.stopPropagation();
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}
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};
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