Ratelimit progressbar update to save some cpu time

src/Ui/media/Loading.coffee

@@ -7,7 +7,8 @@ class Loading
 	setProgress: (percent) ->
 		if @timer_hide
 			clearInterval @timer_hide
-		$(".progressbar").css("width", percent*100+"%").css("opacity", "1").css("display", "block")
+		RateLimit 200, ->
+			$(".progressbar").css("width", percent*100+"%").css("opacity", "1").css("display", "block")
 
 	hideProgress: ->
 		console.log "hideProgress"

src/Ui/media/all.js

@@ -10,6 +10,35 @@
 
 
 
+/* ---- src/Ui/media/lib/RateLimit.coffee ---- */
+
+
+(function() {
+  var call_after_interval, limits;
+
+  limits = {};
+
+  call_after_interval = {};
+
+  window.RateLimit = function(interval, fn) {
+    if (!limits[fn]) {
+      call_after_interval[fn] = false;
+      fn();
+      return limits[fn] = setTimeout((function() {
+        if (call_after_interval[fn]) {
+          fn();
+        }
+        delete limits[fn];
+        return delete call_after_interval[fn];
+      }), interval);
+    } else {
+      return call_after_interval[fn] = true;
+    }
+  };
+
+}).call(this);
+
+
 /* ---- src/Ui/media/lib/ZeroWebsocket.coffee ---- */
 
 
@@ -555,7 +584,9 @@ jQuery.extend( jQuery.easing,
       if (this.timer_hide) {
         clearInterval(this.timer_hide);
       }
-      return $(".progressbar").css("width", percent * 100 + "%").css("opacity", "1").css("display", "block");
+      return RateLimit(200, function() {
+        return $(".progressbar").css("width", percent * 100 + "%").css("opacity", "1").css("display", "block");
+      });
     };
 
     Loading.prototype.hideProgress = function() {
@@ -648,6 +679,7 @@ jQuery.extend( jQuery.easing,
 }).call(this);
 
 
+
 /* ---- src/Ui/media/Notifications.coffee ---- */
 
 
@@ -1493,4 +1525,4 @@ jQuery.extend( jQuery.easing,
 
   window.wrapper = new Wrapper(ws_url);
 
-}).call(this);
+}).call(this);

src/Ui/media/lib/RateLimit.coffee

@@ -0,0 +1,14 @@
+limits = {}
+call_after_interval = {}
+window.RateLimit = (interval, fn) ->
+	if not limits[fn]
+		call_after_interval[fn] = false
+		fn() # First call is not delayed
+		limits[fn] = setTimeout (->
+			if call_after_interval[fn]
+				fn()
+			delete limits[fn]
+			delete call_after_interval[fn]
+		), interval
+	else # Called within iterval, delay the call
+		call_after_interval[fn] = true