@cloudbase/utilities
Version:
cloudbase javascript sdk utilities
102 lines • 12.8 kB
JavaScript
var __extends = (this && this.__extends) || (function () {
var extendStatics = function (d, b) {
extendStatics = Object.setPrototypeOf ||
({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
return extendStatics(d, b);
};
return function (d, b) {
if (typeof b !== "function" && b !== null)
throw new TypeError("Class extends value " + String(b) + " is not a constructor or null");
extendStatics(d, b);
function __() { this.constructor = d; }
d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
};
})();
var __spreadArray = (this && this.__spreadArray) || function (to, from, pack) {
if (pack || arguments.length === 2) for (var i = 0, l = from.length, ar; i < l; i++) {
if (ar || !(i in from)) {
if (!ar) ar = Array.prototype.slice.call(from, 0, i);
ar[i] = from[i];
}
}
return to.concat(ar || Array.prototype.slice.call(from));
};
import { isString, isInstanceOf } from './util';
function customeAddEventListener(name, listener, listeners) {
listeners[name] = listeners[name] || [];
listeners[name].push(listener);
}
function customRemoveEventListener(name, listener, listeners) {
if (listeners === null || listeners === void 0 ? void 0 : listeners[name]) {
var index = listeners[name].indexOf(listener);
if (index !== -1) {
listeners[name].splice(index, 1);
}
}
}
var CloudbaseEvent = (function () {
function CloudbaseEvent(name, data) {
this.data = data || null;
this.name = name;
}
return CloudbaseEvent;
}());
export { CloudbaseEvent };
var IErrorEvent = (function (_super) {
__extends(IErrorEvent, _super);
function IErrorEvent(error, data) {
var _this = _super.call(this, 'error', { error: error, data: data }) || this;
_this.error = error;
return _this;
}
return IErrorEvent;
}(CloudbaseEvent));
export { IErrorEvent };
var CloudbaseEventEmitter = (function () {
function CloudbaseEventEmitter() {
this.listeners = {};
}
CloudbaseEventEmitter.prototype.on = function (name, listener) {
customeAddEventListener(name, listener, this.listeners);
return this;
};
CloudbaseEventEmitter.prototype.off = function (name, listener) {
customRemoveEventListener(name, listener, this.listeners);
return this;
};
CloudbaseEventEmitter.prototype.fire = function (event, data) {
if (isInstanceOf(event, IErrorEvent)) {
console.error(event.error);
return this;
}
var ev = isString(event) ? new CloudbaseEvent(event, data || {}) : event;
var name = ev.name;
if (this.listens(name)) {
ev.target = this;
var handlers = this.listeners[name] ? __spreadArray([], this.listeners[name], true) : [];
for (var _i = 0, handlers_1 = handlers; _i < handlers_1.length; _i++) {
var fn = handlers_1[_i];
fn.call(this, ev);
}
}
return this;
};
CloudbaseEventEmitter.prototype.listens = function (name) {
return this.listeners[name] && this.listeners[name].length > 0;
};
return CloudbaseEventEmitter;
}());
export { CloudbaseEventEmitter };
var eventEmitter = new CloudbaseEventEmitter();
export function addEventListener(event, callback) {
eventEmitter.on(event, callback);
}
export function activateEvent(event, data) {
if (data === void 0) { data = {}; }
eventEmitter.fire(event, data);
}
export function removeEventListener(event, callback) {
eventEmitter.off(event, callback);
}
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添加监听\n * @param {string} name - event名称\n * @param {Function} listener - 响应函数\n * @param {Listeners} listeners - 已存响应函数集合\n */\nfunction customeAddEventListener(name: string, listener: Function, listeners: Listeners) {\n  listeners[name] = listeners[name] || []\n  listeners[name].push(listener)\n}\n/**\n * @private\n * @function _removeEventListener - 移除监听\n * @param {string} name - event名称\n * @param {Function} listener - 响应函数\n * @param {Listeners} listeners - 已存响应函数集合\n */\nfunction customRemoveEventListener(name: string, listener: Function, listeners: Listeners) {\n  if (listeners?.[name]) {\n    const index = listeners[name].indexOf(listener)\n    if (index !== -1) {\n      listeners[name].splice(index, 1)\n    }\n  }\n}\ninterface IEvent {\n  name: string;\n  target: any;\n  data: any;\n}\n/**\n * 自定义事件\n * @class CloudbaseEvent\n * @param {string} name - 类型\n * @param {any} data - 数据\n */\nexport class CloudbaseEvent implements IEvent {\n  public readonly name: string\n  public target: any\n  public data: any\n\n  constructor(name: string, data: any) {\n    this.data = data || null\n    this.name = name\n  }\n}\n/**\n * 自定义错误事件\n * @class IErrorEvent\n * @extends CloudbaseEvent\n * @param {Error} error - 错误信息对象\n * @param {any} data  - 数据\n */\nexport class IErrorEvent extends CloudbaseEvent {\n  public readonly error: Error\n  constructor(error: Error, data?: any) {\n    super('error', { error, data })\n    this.error = error\n  }\n}\n\n/**\n * @class CloudbaseEventEmitter\n */\nexport class CloudbaseEventEmitter implements ICloudbaseEventEmitter {\n  /**\n   * @private\n   * @readonly\n   * @property {Listeners} listeners - 响应函数集合\n   * @default `{}`\n   */\n  private readonly listeners: Listeners = {}\n\n  /**\n   * @public\n   * @method on - 添加监听\n   * @param {string} name - event名称\n   * @param {Function} listener - 响应函数\n   * @return `this`\n   */\n  public on(name: string, listener: Function): this {\n    customeAddEventListener(name, listener, this.listeners)\n    return this\n  }\n  /**\n   * @public\n   * @method off - 移除监听\n   * @param {string} name - event名称\n   * @param {Function} listener - 响应函数\n   * @return `this`\n   */\n  public off(name: string, listener: Function): this {\n    customRemoveEventListener(name, listener, this.listeners)\n    return this\n  }\n  /**\n   * @public\n   * @method fire - 触发事件\n   * @param {string|CloudbaseEvent} event - event\n   * @return `this`\n   */\n  public fire(event: string | CloudbaseEvent, data?: any): this {\n    // 打印错误信息\n    if (isInstanceOf(event, IErrorEvent)) {\n      console.error((event as IErrorEvent).error)\n      return this\n    }\n\n    const ev: CloudbaseEvent = isString(event) ? new CloudbaseEvent(event as string, data || {}) : event as CloudbaseEvent\n\n    const { name } = ev\n\n    if (this.listens(name)) {\n      ev.target = this\n\n      const handlers = this.listeners[name] ? [...this.listeners[name]] : []\n      for (const fn of handlers) {\n        fn.call(this, ev)\n      }\n    }\n\n    return this\n  }\n\n  /**\n   * @private\n   * @method listens - 判断是否监听了name事件\n   * @param {string} name - event名称\n   * @return `boolean`\n   */\n  private listens(name: string): boolean {\n    return this.listeners[name] && this.listeners[name].length > 0\n  }\n}\n\n\nconst eventEmitter = new CloudbaseEventEmitter()\n\nexport function addEventListener(event: string, callback: Function) {\n  eventEmitter.on(event, callback)\n}\n\nexport function activateEvent(event: string, data: any = {}) {\n  eventEmitter.fire(event, data)\n}\n\nexport function removeEventListener(event: string, callback: Function) {\n  eventEmitter.off(event, callback)\n}\n"]}