149 lines
4.0 KiB
TypeScript
149 lines
4.0 KiB
TypeScript
/*
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* https://github.com/morethanwords/tweb
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* Copyright (C) 2019-2021 Eduard Kuzmenko
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* https://github.com/morethanwords/tweb/blob/master/LICENSE
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*
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* Originally from:
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* https://github.com/zhukov/webogram
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* Copyright (C) 2014 Igor Zhukov <igor.beatle@gmail.com>
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* https://github.com/zhukov/webogram/blob/master/LICENSE
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*/
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import { MOUNT_CLASS_TO } from "../../config/debug";
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import { nextRandomInt } from "../../helpers/random";
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import { logger } from "../logger";
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import rootScope from "../rootScope";
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import sessionStorage from "../sessionStorage";
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import apiManager from "./mtprotoworker";
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export type AppInstance = {
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id: number,
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idle: boolean,
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time: number
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};
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const CHECK_INSTANCE_INTERVAL = 5000;
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const DEACTIVATE_TIMEOUT = 30000;
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const MULTIPLE_TABS_THRESHOLD = 20000;
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export class SingleInstance {
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private instanceID: number;
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private started: boolean;
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private masterInstance: boolean;
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private deactivateTimeout: number;
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private deactivated: boolean;
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private initial: boolean;
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private log = logger('INSTANCE');
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public start() {
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if(!this.started/* && !Config.Navigator.mobile && !Config.Modes.packed */) {
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this.started = true;
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this.reset();
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//IdleManager.start();
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rootScope.addEventListener('idle', this.checkInstance);
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setInterval(this.checkInstance, CHECK_INSTANCE_INTERVAL);
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this.checkInstance();
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try {
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document.documentElement.addEventListener('beforeunload', this.clearInstance);
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} catch(e) {}
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}
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}
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public reset() {
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this.instanceID = nextRandomInt(0xFFFFFFFF);
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this.masterInstance = false;
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if(this.deactivateTimeout) clearTimeout(this.deactivateTimeout);
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this.deactivateTimeout = 0;
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this.deactivated = false;
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this.initial = false;
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}
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public clearInstance = () => {
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if(this.masterInstance && !this.deactivated) {
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this.log.warn('clear master instance');
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sessionStorage.delete('xt_instance');
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}
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};
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public activateInstance() {
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if(this.deactivated) {
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this.reset();
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this.checkInstance(false);
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rootScope.dispatchEvent('instance_activated');
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}
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}
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public deactivateInstance = () => {
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if(this.masterInstance || this.deactivated) {
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return false;
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}
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this.log('deactivate');
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this.deactivateTimeout = 0;
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this.deactivated = true;
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this.clearInstance();
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//$modalStack.dismissAll();
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//document.title = _('inactive_tab_title_raw')
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rootScope.idle.deactivated = true;
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rootScope.dispatchEvent('instance_deactivated');
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};
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public checkInstance = (idle = rootScope.idle && rootScope.idle.isIDLE) => {
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if(this.deactivated) {
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return false;
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}
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const time = Date.now();
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const newInstance: AppInstance = {
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id: this.instanceID,
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idle,
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time
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};
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sessionStorage.get('xt_instance', false).then((curInstance: AppInstance) => {
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// this.log('check instance', newInstance, curInstance)
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if(!idle ||
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!curInstance ||
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curInstance.id === this.instanceID ||
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curInstance.time < (time - MULTIPLE_TABS_THRESHOLD)) {
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sessionStorage.set({xt_instance: newInstance});
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if(!this.masterInstance) {
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apiManager.startAll();
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if(!this.initial) {
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this.initial = true;
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} else {
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this.log.warn('now master instance', newInstance);
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}
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this.masterInstance = true;
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}
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if(this.deactivateTimeout) {
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clearTimeout(this.deactivateTimeout);
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this.deactivateTimeout = 0;
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}
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} else {
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if(this.masterInstance) {
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apiManager.stopAll();
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this.log.warn('now idle instance', newInstance);
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if(!this.deactivateTimeout) {
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this.deactivateTimeout = window.setTimeout(this.deactivateInstance, DEACTIVATE_TIMEOUT);
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}
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this.masterInstance = false;
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}
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}
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});
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};
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}
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const singleInstance = new SingleInstance();
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MOUNT_CLASS_TO && (MOUNT_CLASS_TO.singleInstance = singleInstance);
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export default singleInstance;
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