Add setHostname, setPort to QZ Tray 1.9 API

js/qz-websocket.js

@@ -326,6 +326,11 @@ function mapMethods(websocket, methods) {
         window["qz"][key](setupMethods);
     }
 
+    // Special case for getNetworkUtilities
+    qz.getNetworkUtilities = function() {
+        return {setHostname: qz.setHostname, setPort: qz.setPort}
+    };
+
     logger.log("Sent methods off to get rehabilitated");
 }
 

sample.html

@@ -869,8 +869,8 @@
     if (isLoaded()) {
         // Makes a quick connection to www.google.com to determine the active interface
         // Note, if you don't wish to use google.com, you can customize the host and port
-        // qz.getNetworkUtilities().setHostname("qzindustries.com");
-        // qz.getNetworkUtilities().setPort(80);
+        qz.getNetworkUtilities().setHostname("qz.io");    // optional, default is google.com
+        qz.getNetworkUtilities().setPort(80);             // optional, default is 80
         qz.findNetworkInfo();
 
         // Automatically gets called when "qz.findPrinter()" is finished.

src/qz/PrintFunction.java

@@ -718,6 +718,14 @@ public String getIP() {
         return this.getIPAddress();
     }
 
+    public void setHostname(String hostname) throws SocketException, ReflectException, UnknownHostException {
+        getNetworkUtilities().setHostname(hostname);
+    }
+
+    public void setPort(int port) throws SocketException, ReflectException, UnknownHostException {
+        getNetworkUtilities().setPort(port);
+    }
+
     /**
      * Returns a comma separated <code>String</code> containing all MAC
      * Addresses found on the system, or <code>null</code> if none are found.

src/qz/utils/NetworkUtilities.java

@@ -41,14 +41,6 @@ public class NetworkUtilities {
     private String hostname = "www.google.com";
     private int port = 80;
 
-    public NetworkUtilities() throws SocketException, ReflectException, UnknownHostException {
-        try {
-            gatherNetworkInfo();
-        } catch (IOException e) {
-            e.printStackTrace();
-        }
-    }
-
     public void setHostname(String hostname) {
         this.hostname = hostname;
     }
@@ -75,11 +67,17 @@ public void gatherNetworkInfo() throws IOException, ReflectException {
         }
     }
 
-    public String getHardwareAddress() {
+    public String getHardwareAddress() throws IOException {
+        if (this.macAddress == null) {
+            gatherNetworkInfo();
+        }
         return this.macAddress;
     }
 
-    public String getInetAddress() {
+    public String getInetAddress() throws IOException {
+        if (this.ipAddress == null) {
+            gatherNetworkInfo();
+        }
         return this.ipAddress;
     }
 }

src/qz/ws/PrintSocket.java

@@ -78,7 +78,7 @@ public class PrintSocket {
     private final List<String> printingMethods = Arrays.asList("print", "printHTML", "printPS", "printToFile", "printToHost");
     // List of methods that will cause the gateway dialog to pop-up
     private final List<String> privilegedMethods = Arrays.asList("findNetworkInfo", "closePort", "findPrinter", "findPrinters",
-            "findPorts", "openPort", "send", "setSerialProperties", "setSerialBegin", "setSerialEnd", "getSerialIO");
+            "findPorts", "openPort", "send", "setSerialProperties", "setSerialBegin", "setSerialEnd", "getSerialIO", "setHostname", "setPort");
 
     private final TrayManager trayManager = PrintWebSocketServer.getTrayManager();