26 lines
769 B
JavaScript
26 lines
769 B
JavaScript
export const EventEmitter = {
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events: {},
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lastUid: -1,
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dispatch: function (event, data) {
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if (!this.events[event]) return;
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for (let token of Object.keys(this.events[event])) {
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const callback = this.events[event][token];
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if (callback && typeof callback == "function") callback(data);
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}
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},
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subscribe: function (event, callback) {
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if (!callback) return;
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if (!this.events[event]) this.events[event] = {};
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const token = "uID_" + String(++this.lastUid);
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this.events[event][token] = callback;
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},
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unsubcribe: function (...tokens) {
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for (let k of Object.keys(events)) {
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let toks = Object.keys(events[k]);
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for (let tok of toks) {
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if (tokens.includes(tok)) delete events[k][tok];
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}
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}
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},
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};
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