49 lines
1.0 KiB
JavaScript
49 lines
1.0 KiB
JavaScript
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const constants = require('../constants');
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class Events {
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constructor() {
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this.eventId = 0;
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this.subscribedEvents = {};
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this.listenToParentProcess();
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}
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listenToParentProcess() {
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process.on('message', (msg) => {
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if (!msg.event || msg.event !== constants.process.events.response) {
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return;
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}
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if (!this.subscribedEvents[msg.eventId]) {
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return;
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}
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this.subscribedEvents[msg.eventId](msg.result);
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});
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}
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sendEvent() {
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const eventType = arguments[0];
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const requestName = arguments[1];
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let args = [].slice.call(arguments, 2);
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this.eventId++;
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this.subscribedEvents[this.eventId] = args[args.length - 1];
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args = args.splice(0, args.length - 2);
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process.send({
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event: eventType,
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requestName,
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args,
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eventId: this.eventId
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});
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}
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on() {
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this.sendEvent(constants.process.events.on, ...arguments);
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}
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request() {
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this.sendEvent(constants.process.events.request, ...arguments);
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}
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}
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module.exports = Events;
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