New instance hands off to existing one

src/net/apocalypselabs/symat/Main.java

@@ -118,6 +118,10 @@ public class Main extends javax.swing.JFrame {
      * Application icon, for setting frame icons.
      */
     public static ArrayList<Image> symatlogo = new ArrayList<>();
+    
+    public static SingleInstanceServer sisrv;
+    
+    public static Main maingui;
 
     /**
      * Creates the main app window and does some quick things that aren't
@@ -125,6 +129,7 @@ public class Main extends javax.swing.JFrame {
      */
     public Main() {
         initComponents();
+        maingui = this;
 
         // Set icon
         setIconImages(symatlogo);
@@ -1006,6 +1011,15 @@ public class Main extends javax.swing.JFrame {
                     break;
             }
         }
+        
+        SingleInstanceClient sicli = new SingleInstanceClient(argfile);
+        
+        try {
+            new SingleInstanceServer().start();
+        } catch (IOException ex) {
+            Debug.printerr("Cannot start instance listener:\n\n");
+            Debug.stacktrace(ex);
+        }
 
         Platform.setImplicitExit(false);
 

src/net/apocalypselabs/symat/SingleInstanceClient.java

@@ -0,0 +1,82 @@
+/*
+ * CODE LICENSE =====================
+ * Copyright (c) 2015, Apocalypse Laboratories
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without modification,
+ *  are permitted provided that the following conditions are met:
+ * 
+ * 1. Redistributions of source code must retain the above copyright notice, this 
+ * list of conditions and the following disclaimer.
+ * 
+ * 2. Redistributions in binary form must reproduce the above copyright notice, 
+ * this list of conditions and the following disclaimer in the documentation and/or
+ *  other materials provided with the distribution.
+ * 
+ * 3. Neither the name of the copyright holder nor the names of its contributors 
+ * may be used to endorse or promote products derived from this software without 
+ * specific prior written permission.
+ * 
+ * 4. You adhere to the Media License detailed below.  If you do not, this license
+ * is automatically revoked and you must purge all copies of the software you
+ * possess, in source or binary form.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND 
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
+ *  ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON 
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ * 
+ * MEDIA LICENSE ====================
+ * All images and other graphical files (the "graphics") included with this
+ * software are copyright (c) 2015 Apocalypse Laboratories.  You may not distribute
+ * the graphics or any program, source code repository, or other digital storage 
+ * media containing them without written permission from Apocalypse Laboratories.
+ * This ban on distribution only applies to publicly available systems.
+ * A password-protected network file share, USB drive, or other storage scheme that
+ * cannot be easily accessed by the public is generally allowed.  If in doubt,
+ * contact Apocalypse Laboratories.  If Apocalypse Laboratories allows or denies
+ * you permission, that decision is considered final and binding.
+ */
+package net.apocalypselabs.symat;
+
+import java.io.BufferedReader;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.net.URL;
+
+/**
+ * This class attempts to send startup data to an existing instance, and if it
+ * succeeds it kills this instance of SyMAT.
+ *
+ * @author Skylar
+ */
+public class SingleInstanceClient {
+
+    public SingleInstanceClient(String arg) {
+        String response = "";
+        String args = (arg.equals("") ? "" : "?arg=" + arg);
+        try {
+            URL url = new URL("http://127.0.0.1:26879" + args);
+            InputStream is = url.openStream();
+            BufferedReader br = new BufferedReader(new InputStreamReader(is));
+
+            String line = br.readLine();
+            br.close();
+            is.close();
+            response = line;
+        } catch (Exception ex) {
+
+        }
+
+        if (response.equals("OK")) {
+            Debug.println("Handing off to original instance...");
+            System.exit(0);
+        }
+    }
+}

src/net/apocalypselabs/symat/SingleInstanceServer.java

@@ -0,0 +1,81 @@
+/*
+ * CODE LICENSE =====================
+ * Copyright (c) 2015, Apocalypse Laboratories
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without modification,
+ *  are permitted provided that the following conditions are met:
+ * 
+ * 1. Redistributions of source code must retain the above copyright notice, this 
+ * list of conditions and the following disclaimer.
+ * 
+ * 2. Redistributions in binary form must reproduce the above copyright notice, 
+ * this list of conditions and the following disclaimer in the documentation and/or
+ *  other materials provided with the distribution.
+ * 
+ * 3. Neither the name of the copyright holder nor the names of its contributors 
+ * may be used to endorse or promote products derived from this software without 
+ * specific prior written permission.
+ * 
+ * 4. You adhere to the Media License detailed below.  If you do not, this license
+ * is automatically revoked and you must purge all copies of the software you
+ * possess, in source or binary form.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND 
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
+ *  ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON 
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ * 
+ * MEDIA LICENSE ====================
+ * All images and other graphical files (the "graphics") included with this
+ * software are copyright (c) 2015 Apocalypse Laboratories.  You may not distribute
+ * the graphics or any program, source code repository, or other digital storage 
+ * media containing them without written permission from Apocalypse Laboratories.
+ * This ban on distribution only applies to publicly available systems.
+ * A password-protected network file share, USB drive, or other storage scheme that
+ * cannot be easily accessed by the public is generally allowed.  If in doubt,
+ * contact Apocalypse Laboratories.  If Apocalypse Laboratories allows or denies
+ * you permission, that decision is considered final and binding.
+ */
+package net.apocalypselabs.symat;
+
+import fi.iki.elonen.NanoHTTPD;
+import java.util.Map;
+
+/**
+ *
+ * @author Skylar
+ */
+public class SingleInstanceServer extends NanoHTTPD {
+
+    public SingleInstanceServer() {
+        super(26879);
+    }
+
+    @Override
+    public Response serve(IHTTPSession session) {
+        Debug.println("Another instance detected");
+        String msg = "OK";
+        Map<String, String> parms = session.getParms();
+        if (parms.get("arg") != null) {
+            CodeEditor ed = new CodeEditor();
+            Main.loadFrame(ed);
+            ed.openFileFromName(parms.get("arg"));
+            java.awt.EventQueue.invokeLater(new Runnable() {
+                @Override
+                public void run() {
+                    Main.maingui.toFront();
+                    Main.maingui.repaint();
+                }
+            });
+        }
+        return new NanoHTTPD.Response(msg);
+    }
+
+}

src/net/apocalypselabs/symat/SplashScreen.form

@@ -140,4 +140,4 @@
       </SubComponents>
     </Container>
   </SubComponents>
-</Form>
+</Form>

src/net/apocalypselabs/symat/SplashScreen.java

@@ -50,7 +50,6 @@ import java.io.BufferedReader;
 import java.io.InputStream;
 import java.io.InputStreamReader;
 import java.net.URL;
-import javax.swing.ImageIcon;
 import javax.swing.SwingUtilities;
 import static net.apocalypselabs.symat.Main.API_URL;
 import static net.apocalypselabs.symat.Main.APP_CODE;
@@ -67,7 +66,7 @@ public class SplashScreen extends javax.swing.JFrame {
      */
     public SplashScreen() {
         initComponents();
-        setBackground(new Color(0, 0, 0, 0));
+        setBackground(new Color(255, 255, 255, 0));
         setIconImages(Main.symatlogo);
         setLocationRelativeTo(null);
     }
@@ -103,7 +102,7 @@ public class SplashScreen extends javax.swing.JFrame {
 
         jLayeredPane1.setBackground(new java.awt.Color(255, 255, 255));
 
-        dispLabel.setFont(Main.ubuntuRegular.deriveFont(22.0F));
+        dispLabel.setFont(net.apocalypselabs.symat.Main.ubuntuRegular.deriveFont(22.0F));
         dispLabel.setHorizontalAlignment(javax.swing.SwingConstants.LEFT);
         dispLabel.setText("Loading...");
         dispLabel.setHorizontalTextPosition(javax.swing.SwingConstants.LEFT);
@@ -111,9 +110,9 @@ public class SplashScreen extends javax.swing.JFrame {
         jLayeredPane1.add(dispLabel);
         dispLabel.setBounds(250, 250, 350, 80);
 
-        jLabel1.setFont(Main.ubuntuRegular.deriveFont(20.0F));
+        jLabel1.setFont(net.apocalypselabs.symat.Main.ubuntuRegular.deriveFont(20.0F));
         jLabel1.setHorizontalAlignment(javax.swing.SwingConstants.TRAILING);
-        jLabel1.setText("v. "+Main.VERSION_NAME);
+        jLabel1.setText("v. "+net.apocalypselabs.symat.Main.VERSION_NAME);
         jLayeredPane1.add(jLabel1);
         jLabel1.setBounds(520, 70, 80, 30);
         jLayeredPane1.setLayer(jLabel1, javax.swing.JLayeredPane.POPUP_LAYER);
@@ -122,14 +121,14 @@ public class SplashScreen extends javax.swing.JFrame {
         jLayeredPane1.add(jLabel2);
         jLabel2.setBounds(0, 0, 700, 470);
 
-        jLabel3.setFont(Main.ubuntuRegular.deriveFont(12.0F));
+        jLabel3.setFont(net.apocalypselabs.symat.Main.ubuntuRegular.deriveFont(12.0F));
         jLabel3.setHorizontalAlignment(javax.swing.SwingConstants.CENTER);
         jLabel3.setText("<html><div style=\"text-align: center;\">Apocalypse<br>Laboratories</div>");
         jLayeredPane1.add(jLabel3);
         jLabel3.setBounds(50, 420, 120, 40);
         jLayeredPane1.setLayer(jLabel3, javax.swing.JLayeredPane.POPUP_LAYER);
 
-        jLabel4.setFont(Main.ubuntuRegular.deriveFont(12.0F));
+        jLabel4.setFont(net.apocalypselabs.symat.Main.ubuntuRegular.deriveFont(12.0F));
         jLabel4.setHorizontalAlignment(javax.swing.SwingConstants.CENTER);
         jLabel4.setText("symatapp.com");
         jLayeredPane1.add(jLabel4);