Skip to content

resume timer after the computer wake up from sleep mode #400

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Draft
cytim wants to merge 2 commits into
base: master
Choose a base branch
from
Draft

resume timer after the computer wake up from sleep mode #400

Changes from all commits
Commits
Show all changes
2 commits
Select commit Hold shift + click to select a range
86cbeea
resume timer after the computer wake up from sleep mode
cytim Sep 12, 2021
b7fc2d9
refactoring
cytim Sep 12, 2021
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
67 changes: 37 additions & 30 deletions src/background/Timer.js
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -16,11 +16,10 @@ class Timer extends EventEmitter
this.duration = duration;
this.tick = tick;

this.tickInterval = null;
this.expireTimeout = null;

this.checkpointStartAt = null;
this.checkpointElapsed = 0;

this.countdownInterval = null;
}

observe(observer) {
Expand Down Expand Up @@ -72,11 +71,11 @@ class Timer extends EventEmitter
return;
}

this.setExpireTimeout(this.duration);
this.setTickInterval(this.tick);
this.checkpointStartAt = Date.now();

this.countdown();

this.state = TimerState.Running;
this.checkpointStartAt = Date.now();

this.emit('start', this.status);
}
Expand All @@ -86,11 +85,9 @@ class Timer extends EventEmitter
return;
}

clearInterval(this.tickInterval);
clearTimeout(this.expireTimeout);
clearInterval(this.countdownInterval);
this.countdownInterval = null;

this.tickInterval = null;
this.expireTimeout = null;
this.checkpointStartAt = null;
this.checkpointElapsed = 0;

Expand All @@ -104,8 +101,8 @@ class Timer extends EventEmitter
return;
}

clearInterval(this.tickInterval);
clearTimeout(this.expireTimeout);
clearInterval(this.countdownInterval);
this.countdownInterval = null;

let periodElapsed = (Date.now() - this.checkpointStartAt) / 1000;
this.checkpointElapsed += periodElapsed;
Expand All @@ -120,11 +117,11 @@ class Timer extends EventEmitter
return;
}

this.setExpireTimeout(this.remaining);
this.setTickInterval(this.tick);
this.checkpointStartAt = Date.now();

this.countdown();

this.state = TimerState.Running;
this.checkpointStartAt = Date.now();

this.emit('resume', this.status);
}
Expand All @@ -134,26 +131,36 @@ class Timer extends EventEmitter
this.start();
}

setExpireTimeout(seconds) {
this.expireTimeout = setTimeout(() => {
clearInterval(this.tickInterval);
clearTimeout(this.expireTimeout);
expire() {
clearInterval(this.countdownInterval);
this.countdownInterval = null;

this.checkpointStartAt = null;
this.checkpointElapsed = 0;

this.state = TimerState.Stopped;

this.emit('expire', this.status);
}

this.tickInterval = null;
this.expireTimeout = null;
this.checkpointStartAt = Date.now();
this.checkpointElapsed = this.duration;
countdown() {
const expireAt = this.checkpointStartAt + this.remaining * 1000;
let nextTickAt = this.checkpointStartAt + this.getRemainingTimeBeforeNextTick() * 1000;

this.state = TimerState.Stopped;
this.countdownInterval = setInterval(() => {
const now = Date.now();

this.emit('expire', this.status);
}, seconds * 1000);
if (now >= expireAt) {
this.expire();
} else if (now >= nextTickAt) {
this.emit('tick', this.status);
nextTickAt = now + this.getRemainingTimeBeforeNextTick() * 1000;
}
}, 1000);
}

setTickInterval(seconds) {
this.tickInterval = setInterval(() => {
this.emit('tick', this.status);
}, seconds * 1000);
getRemainingTimeBeforeNextTick() {
return this.tick - ((this.elapsed + this.tick) % this.tick);
}
}

Expand Down