limit how often the notes window updates presentation states

main
Hakim El Hattab 9 years ago
parent c02d185cfd
commit f396b9b871

@ -244,6 +244,9 @@
}
// Limit to max one state update per X ms
handleStateMessage = debounce( handleStateMessage, 200 );
/**
* Creates the preview iframes.
*/
@ -340,6 +343,37 @@
}
/**
* Limits the frequency at which a function can be called.
*/
function debounce( fn, ms ) {
var lastTime = 0,
timeout;
return function() {
var args = arguments;
var context = this;
clearTimeout( timeout );
var timeSinceLastCall = Date.now() - lastTime;
if( timeSinceLastCall > ms ) {
fn.apply( context, args );
lastTime = Date.now();
}
else {
timeout = setTimeout( function() {
fn.apply( context, args );
lastTime = Date.now();
}, ms - timeSinceLastCall );
}
}
}
})();
</script>

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