remove mouse polling interval

main.go

@@ -43,7 +43,6 @@ const (
 	authenticationRateLimit time.Duration = time.Second / 10
 	authenticationRateBurst int           = 10
 	challengeLength         int           = 8
-	defaultUpdateInterval   int           = 50
 	defaultBind             string        = ":0"
 	version                 string        = "0.0.4"
 )
@@ -128,15 +127,13 @@ func secureRandBase64(length int) string {
 func main() {
 	var bind, certFile, keyFile, secret string
 	var showVersion, invert bool
-	var updateInterval int
 	flag.BoolVar(&showVersion, "version", false, "show program's version number and exit")
-	flag.StringVar(&bind, "bind", defaultBind, "bind server to [IP]:PORT")
+	flag.StringVar(&bind, "bind", defaultBind, "bind server to [HOSTNAME]:PORT")
 	flag.StringVar(&secret, "secret", "", "shared secret for client authentication")
 	flag.StringVar(&certFile, "cert", "", "file containing TLS certificate")
 	flag.StringVar(&keyFile, "key", "", "file containing TLS private key")
 	flag.BoolVar(&invert, "invert", false, "use inverse colors for QR code")
-	flag.IntVar(&updateInterval, "interval", defaultUpdateInterval,
-		"mouse polling interval in milliseconds")
+	flag.Int("interval", 0, "obsolete, not used anymore")
 	flag.Parse()
 	if showVersion {
 		fmt.Println(version)
@@ -152,9 +149,6 @@ func main() {
 	if secret == "" {
 		secret = secureRandBase64(defaultSecretLength)
 	}
-	if updateInterval < 0 {
-		log.Fatal("interval must be greater or equal to zero")
-	}
 	var plugin Plugin
 	var pluginName string
 	platformErrors := ""
@@ -208,7 +202,6 @@ func main() {
 		if !challenge.verify(message) {
 			return
 		}
-		websocket.Message.Send(ws, fmt.Sprintf("i%d", updateInterval))
 		for {
 			if err := websocket.Message.Receive(ws, &message); err != nil {
 				return

webdata/fn.js

@@ -24,7 +24,6 @@ const MOVE_MULT = 1;
 const SCROLL_MULT = 0.05;
 // [[px/s, mult], ...]
 const POINTER_ACCELERATION = [[0, 0], [87, 1], [173, 1], [553, 2]];
-const MAX_IDLE_UPDATES = 10;
 
 var ws;
 var pad;
@@ -41,9 +40,6 @@ var scrollXSum = 0;
 var scrollYSum = 0;
 var dragging = false;
 var draggingTimeout = null;
-var updateTimer = null;
-var updateInterval = 0;
-var idleUpdates = 0;
 
 function fullscreenEnabled() {
     return (document.fullscreenEnabled ||
@@ -145,22 +141,11 @@ function onDraggingTimeout() {
 }
 
 function updateMoveAndScroll() {
-    if (updateTimer == null) {
-        onUpdateTimeout();
-        if (updateInterval > 0 && idleUpdates == 0) {
-            updateTimer = setInterval(onUpdateTimeout, updateInterval);
-        }
-    }
-}
-
-function onUpdateTimeout() {
-    idleUpdates += 1;
     var moveX = Math.trunc(moveXSum);
     var moveY = Math.trunc(moveYSum);
     if (Math.abs(moveX) >= 1 || Math.abs(moveY) >= 1) {
         moveXSum -= moveX;
         moveYSum -= moveY;
-        idleUpdates = 0;
         ws.send("m" + moveX + ";" + moveY);
     }
     var scrollX = Math.trunc(scrollXSum);
@@ -168,13 +153,8 @@ function onUpdateTimeout() {
     if (Math.abs(scrollX) >= 1 || Math.abs(scrollY) >= 1) {
         scrollXSum -= scrollX;
         scrollYSum -= scrollY;
-        idleUpdates = 0;
         ws.send("s" + scrollX + ";" + scrollY);
     }
-    if (idleUpdates >= MAX_IDLE_UPDATES) {
-        clearInterval(updateTimer);
-        updateTimer = null;
-    }
 }
 
 function handleStart(evt) {
@@ -298,20 +278,6 @@ function challengeResponse(message) {
     return btoa(shaObj.getHMAC("BYTES"));
 }
 
-function processCommand(message) {
-    if (message.charAt(0) == "i") {
-        var x = parseInt(message.substr(1));
-        if (isNaN(x) || x.toString() != message.substr(1) || x < 0) {
-            return false;
-        }
-        updateInterval = x;
-        clearInterval(updateTimer);
-        updateTimer = null;
-        return true;
-    }
-    return false;
-}
-
 window.addEventListener("load", function() {
     var authenticated = false;
     var opening = document.getElementById("opening");
@@ -336,9 +302,7 @@ window.addEventListener("load", function() {
 
     ws.onmessage = function(event) {
         if (authenticated) {
-            if (!processCommand(event.data)) {
             ws.close();
-            }
             return;
         }
         authenticated = true;