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Added missing semicolons, improved state handling

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This commit is contained in:
Michael Jumper
2011-03-08 21:42:43 -08:00
parent cfebdb2cf3
commit aa0805595a
2 changed files with 91 additions and 80 deletions
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88
guacamole-common-js/src/main/resources/guacamole.js
View File

@@ -43,7 +43,7 @@ function GuacamoleClient(display, tunnel) {
this.setOnStateChangeHandler = function(handler) {
stateChangeHandler = handler;
}
};
function isConnected() {
return currentState == STATE_CONNECTED
@@ -89,7 +89,7 @@ function GuacamoleClient(display, tunnel) {
return;
tunnel.sendMessage("key:" + keysym + "," + pressed + ";");
}
};
this.sendMouseState = function(mouseState) {
@@ -115,7 +115,7 @@ function GuacamoleClient(display, tunnel) {
// Send message
tunnel.sendMessage("mouse:" + mouseState.getX() + "," + mouseState.getY() + "," + buttonMask + ";");
}
};
this.setClipboard = function(data) {
@@ -123,8 +123,8 @@ function GuacamoleClient(display, tunnel) {
if (!isConnected())
return;
tunnel.sendMessage("clipboard:" + tunnel.escapeGuacamoleString(data) + ";");
}
tunnel.sendMessage("clipboard:" + escapeGuacamoleString(data) + ";");
};
// Handlers
@@ -153,7 +153,7 @@ function GuacamoleClient(display, tunnel) {
this.getLayers = function() {
return layers;
}
};
function getLayer(index) {
@@ -217,16 +217,16 @@ function GuacamoleClient(display, tunnel) {
var instructionHandlers = {
"error": function(parameters) {
if (errorHandler) errorHandler(tunnel.unescapeGuacamoleString(parameters[0]));
if (errorHandler) errorHandler(unescapeGuacamoleString(parameters[0]));
disconnect();
},
"name": function(parameters) {
if (nameHandler) nameHandler(tunnel.unescapeGuacamoleString(parameters[0]));
if (nameHandler) nameHandler(unescapeGuacamoleString(parameters[0]));
},
"clipboard": function(parameters) {
if (clipboardHandler) clipboardHandler(tunnel.unescapeGuacamoleString(parameters[0]));
if (clipboardHandler) clipboardHandler(unescapeGuacamoleString(parameters[0]));
},
"size": function(parameters) {
@@ -319,17 +319,8 @@ function GuacamoleClient(display, tunnel) {
handler(parameters);
}
this.connect = function() {
setState(STATE_CONNECTING);
tunnel.connect();
setState(STATE_WAITING);
};
function disconnect() {
// Only attempt disconnection not disconnected.
@@ -344,6 +335,67 @@ function GuacamoleClient(display, tunnel) {
}
function escapeGuacamoleString(str) {
var escapedString = "";
for (var i=0; i<str.length; i++) {
var c = str.charAt(i);
if (c == ",")
escapedString += "\\c";
else if (c == ";")
escapedString += "\\s";
else if (c == "\\")
escapedString += "\\\\";
else
escapedString += c;
}
return escapedString;
}
function unescapeGuacamoleString(str) {
var unescapedString = "";
for (var i=0; i<str.length; i++) {
var c = str.charAt(i);
if (c == "\\" && i<str.length-1) {
var escapeChar = str.charAt(++i);
if (escapeChar == "c")
unescapedString += ",";
else if (escapeChar == "s")
unescapedString += ";";
else if (escapeChar == "\\")
unescapedString += "\\";
else
unescapedString += "\\" + escapeChar;
}
else
unescapedString += c;
}
return unescapedString;
}
this.disconnect = disconnect;
this.connect = function() {
setState(STATE_CONNECTING);
tunnel.connect();
setState(STATE_WAITING);
};
this.escapeGuacamoleString = escapeGuacamoleString;
this.unescapeGuacamoleString = unescapeGuacamoleString;
}

83
guacamole-common-js/src/main/resources/tunnel.js
View File

@@ -22,8 +22,18 @@ function GuacamoleHTTPTunnel(tunnelURL) {
var TUNNEL_READ = tunnelURL + "?read";
var TUNNEL_WRITE = tunnelURL + "?write";
var connected = 0;
var pollResponse = 1; // Default to polling - will be turned off automatically if not needed
var STATE_IDLE = 0;
var STATE_CONNECTED = 1;
var STATE_DISCONNECTED = 2;
var currentState = STATE_IDLE;
var POLLING_ENABLED = 1;
var POLLING_DISABLED = 0;
// Default to polling - will be turned off automatically if not needed
var pollingMode = POLLING_ENABLED;
var instructionHandler = null;
var sendingMessages = 0;
@@ -32,7 +42,7 @@ function GuacamoleHTTPTunnel(tunnelURL) {
function sendMessage(message) {
// Do not attempt to send messages if not connected
if (!connected)
if (currentState != STATE_CONNECTED)
return;
// Add event to queue, restart send loop if finished.
@@ -40,7 +50,7 @@ function GuacamoleHTTPTunnel(tunnelURL) {
if (sendingMessages == 0)
sendPendingMessages();
};
}
function sendPendingMessages() {
@@ -81,7 +91,7 @@ function GuacamoleHTTPTunnel(tunnelURL) {
function parseResponse() {
// Do not handle responses if not connected
if (!connected) {
if (currentState != STATE_CONNECTED) {
// Clean up interval if polling
if (interval != null)
@@ -99,7 +109,7 @@ function GuacamoleHTTPTunnel(tunnelURL) {
xmlhttprequest.readyState == 4) {
// Also poll every 30ms (some browsers don't repeatedly call onreadystatechange for new data)
if (pollResponse == 1) {
if (pollingMode == POLLING_ENABLED) {
if (xmlhttprequest.readyState == 3 && interval == null)
interval = setInterval(parseResponse, 30);
else if (xmlhttprequest.readyState == 4 && interval != null)
@@ -165,7 +175,7 @@ function GuacamoleHTTPTunnel(tunnelURL) {
// If response polling enabled, attempt to detect if still
// necessary (via wrapping parseResponse())
if (pollResponse == 1) {
if (pollingMode == POLLING_ENABLED) {
xmlhttprequest.onreadystatechange = function() {
// If we receive two or more readyState==3 events,
@@ -173,7 +183,7 @@ function GuacamoleHTTPTunnel(tunnelURL) {
if (xmlhttprequest.readyState == 3) {
dataUpdateEvents++;
if (dataUpdateEvents >= 2) {
pollResponse = 0;
pollingMode = POLLING_DISABLED;
xmlhttprequest.onreadystatechange = parseResponse;
}
}
@@ -212,13 +222,13 @@ function GuacamoleHTTPTunnel(tunnelURL) {
connect_xmlhttprequest.send(null);
// Start reading data
connected = 1;
currentState = STATE_CONNECTED;
handleResponse(makeRequest());
}
function disconnect() {
connected = 0;
currentState = STATE_DISCONNECTED;
}
// External API
@@ -227,57 +237,6 @@ function GuacamoleHTTPTunnel(tunnelURL) {
this.sendMessage = sendMessage;
this.setInstructionHandler = function(handler) {
instructionHandler = handler;
}
this.escapeGuacamoleString = function(str) {
var escapedString = "";
for (var i=0; i<str.length; i++) {
var c = str.charAt(i);
if (c == ",")
escapedString += "\\c";
else if (c == ";")
escapedString += "\\s";
else if (c == "\\")
escapedString += "\\\\";
else
escapedString += c;
}
return escapedString;
}
this.unescapeGuacamoleString = function(str) {
var unescapedString = "";
for (var i=0; i<str.length; i++) {
var c = str.charAt(i);
if (c == "\\" && i<str.length-1) {
var escapeChar = str.charAt(++i);
if (escapeChar == "c")
unescapedString += ",";
else if (escapeChar == "s")
unescapedString += ";";
else if (escapeChar == "\\")
unescapedString += "\\";
else
unescapedString += "\\" + escapeChar;
}
else
unescapedString += c;
}
return unescapedString;
}
};
}