angular - how to pevent ng2-idle instantiating multiple times with each successful login -


i have problem set idle display popup minute before session expiration. session times out or user logs out. next time user logs on, have 2 popups when there timeout. user logs out , in again , have 3 popups, , on. how destroy current instance of idle when user logs out?

my setup follows:

constructor(private idle: idle, ...) {}  ngoninit() {     this.setidle(); }  private setidle() {     // client activity timeout. 29 minutes 'idle', 1 minute beyond timeout     this.ngzone.runoutsideangular(() => {         // this.idle.setidle(29 * 60);         // this.idle.settimeout(1 * 60);         this.idle.setidle(10);         this.idle.settimeout(10);         this.idle.setinterrupts(default_interruptsources);     });       this.idle.ontimeout.subscribe(() => {         this.ngzone.run(() => {             this.errordialogref.close();             sessionstorage.setitem('sessionexpired', 'true');             this.displayerrormodal(true);         });      });      this.idle.onidlestart.subscribe(() => {         this.ngzone.run(() => {             this.displayidlewarning();         });     });      this.ngzone.runoutsideangular(() => {         this.idle.watch();     }); }

during logout process, tried this.idle.stop() , delete this.idle. neither worked.

fyi: has run outside angular zone or else our protractor tests break.

update: until found solution of zeroing out arrays, did try:

this.idle.ontimeout.unsubscribe(); this.idle.onidlestart.unsubscribe(); this.idle.onidleend.unsubscribe();

but resulted in following error during subsequent login:

core.es5.js?0445:1084 error error: uncaught (in promise): objectunsubscribederror: object unsubscribed

it seems me component holding on references or not getting destroyed during logout.

i able inspect this.idle object , discovered "do stuff" objects (ontimeout, onidlestart, onidleend, oninterrupt, , ontimeoutwarning) eventemitters. , each of had object called observers. observers array of observer. each time new popup created, noticed array had increased. so, during logout process, cleared observers:

this.idle.stop(); this.idle.ontimeout.observers.length = 0; this.idle.onidlestart.observers.length = 0; this.idle.onidleend.observers.length = 0;

this may not best way. i'm sure there's better way delete observer eventemitter. couldn't find , quick , dirty way it.


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