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shinypb/gist:786923

Created January 19, 2011 21:39
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Test whether your browser supports window focus/blur events
Raw
gistfile1.html
<!DOCTYPE html>
<script>
var timer = startTimer();
function startTimer() {
return setInterval(function() {
console.log('tick');
}, 1000);
}
window.onblur = function() {
if(timer) {
console.log('stopping');
clearInterval(timer);
timer = null;
}
}
window.onfocus = function() {
if(!timer) {
console.log('starting');
timer = startTimer();
}
}
</script>
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