close #17

shadowsocks-csharp/Program.cs

@@ -3,8 +3,11 @@ using Shadowsocks.Properties;
 using Shadowsocks.View;
 using System;
 using System.Collections.Generic;
+using System.Diagnostics;
 using System.IO;
+using System.Reflection;
 using System.Runtime.InteropServices;
+using System.Threading;
 using System.Windows.Forms;
 
 namespace Shadowsocks
@@ -20,39 +23,51 @@ namespace Shadowsocks
         [STAThread]
         static void Main()
         {
-            string tempPath = Path.GetTempPath();
-            string dllPath = tempPath + "/polarssl.dll";
-            try
+            using (Mutex mutex = new Mutex(false, "Global\\" + Assembly.GetExecutingAssembly().GetType().GUID.ToString()))
             {
-                FileManager.UncompressFile(dllPath, Resources.polarssl_dll);
-            }
-            catch (IOException e)
-            {
-                Console.WriteLine(e.ToString());
-            }
-            LoadLibrary(dllPath);
+                if (!mutex.WaitOne(0, false))
+                {
+                    Process[] oldProcesses = Process.GetProcessesByName("Shadowsocks");
+                    if (oldProcesses.Length > 0)
+                    {
+                        Process oldProcess = oldProcesses[0];
+                    }
+                    MessageBox.Show("Shadowsocks is already running.\n\nFind Shadowsocks icon in your notify tray.");
+                    return;
+                }
+                string tempPath = Path.GetTempPath();
+                string dllPath = tempPath + "/polarssl.dll";
+                try
+                {
+                    FileManager.UncompressFile(dllPath, Resources.polarssl_dll);
+                }
+                catch (IOException e)
+                {
+                    Console.WriteLine(e.ToString());
+                }
+                LoadLibrary(dllPath);
 
-            try
-            {
-                FileStream fs = new FileStream("shadowsocks.log", FileMode.Append);
-                TextWriter tmp = Console.Out;
-                StreamWriter sw = new StreamWriter(fs);
-                sw.AutoFlush = true;
-                Console.SetOut(sw);
-                Console.SetError(sw);
-            }
-            catch (IOException e)
-            {
-                Console.WriteLine(e.ToString());
-            }
-            Application.EnableVisualStyles();
-            Application.SetCompatibleTextRenderingDefault(false);
-            ShadowsocksController controller = new ShadowsocksController();
-
-            // TODO run without a main form to save RAM
-            Application.Run(new ConfigForm(controller));
+                try
+                {
+                    FileStream fs = new FileStream("shadowsocks.log", FileMode.Append);
+                    TextWriter tmp = Console.Out;
+                    StreamWriter sw = new StreamWriter(fs);
+                    sw.AutoFlush = true;
+                    Console.SetOut(sw);
+                    Console.SetError(sw);
+                }
+                catch (IOException e)
+                {
+                    Console.WriteLine(e.ToString());
+                }
+                Application.EnableVisualStyles();
+                Application.SetCompatibleTextRenderingDefault(false);
+                ShadowsocksController controller = new ShadowsocksController();
 
+                // TODO run without a main form to save RAM
+                Application.Run(new ConfigForm(controller));
 
+            }
         }
     }
 }

shadowsocks-csharp/View/ConfigForm.cs

@@ -17,6 +17,7 @@ namespace Shadowsocks.View
         // this is a copy of configuration that we are working on
         private Configuration modifiedConfiguration;
         private int oldSelectedIndex = -1;
+        private bool isFirstRun;
 
         public ConfigForm(ShadowsocksController controller)
         {
@@ -162,6 +163,10 @@ namespace Shadowsocks.View
                     this.Hide();
                 }));
             }
+            else
+            {
+                isFirstRun = true;
+            }
         }
 
         private void ServersListBox_SelectedIndexChanged(object sender, EventArgs e)
@@ -222,6 +227,17 @@ namespace Shadowsocks.View
             this.Close();
         }
 
+        private void showFirstTimeBalloon()
+        {
+            if (isFirstRun)
+            {
+                notifyIcon1.BalloonTipTitle = "Shadowsocks is here";
+                notifyIcon1.BalloonTipText = "You can find turn on/off Shadowsocks in the context menu";
+                notifyIcon1.ShowBalloonTip(0);
+                isFirstRun = false;
+            }
+        }
+
         private void OKButton_Click(object sender, EventArgs e)
         {
             if (!saveOldSelectedServer())
@@ -235,12 +251,14 @@ namespace Shadowsocks.View
             }
             controller.SaveConfig(modifiedConfiguration);
             this.Hide();
+            showFirstTimeBalloon();
         }
 
         private void CancelButton_Click(object sender, EventArgs e)
         {
             this.Hide();
             loadCurrentConfiguration();
+            showFirstTimeBalloon();
         }
 
         private void ConfigForm_FormClosed(object sender, FormClosedEventArgs e)