fix CMD issues and add history support.

WinAlfred.Plugin.System/CMD.cs

@@ -1,7 +1,9 @@
 using System;
 using System.Collections.Generic;
 using System.Diagnostics;
+using System.IO;
 using System.Linq;
+using System.Runtime.Serialization.Formatters.Binary;
 using System.Text;
 using System.Windows.Forms;
 
@@ -9,6 +11,9 @@ namespace WinAlfred.Plugin.System
 {
     public class CMD : BaseSystemPlugin
     {
+        private Dictionary<string, int> cmdHistory = new Dictionary<string, int>();
+        private string filePath = Directory.GetCurrentDirectory() + "\\CMDHistory.dat";
+
         protected override List<Result> QueryInternal(Query query)
         {
             List<Result> results = new List<Result>();
@@ -18,29 +23,96 @@ namespace WinAlfred.Plugin.System
                 Result result = new Result
                 {
                     Title = cmd,
+                    Score = 5000,
                     SubTitle = "execute command through command shell",
                     IcoPath = "Images/cmd.png",
                     Action = () =>
                     {
-                        Process process = new Process();
-                        ProcessStartInfo startInfo = new ProcessStartInfo
-                        {
-                            WindowStyle = ProcessWindowStyle.Normal,
-                            FileName = "cmd.exe",
-                            Arguments = "/C " + cmd
-                        };
-                        process.StartInfo = startInfo;
-                        process.Start();
+                        ExecuteCmd(cmd);
+                        AddCmdHistory(cmd);
                     }
                 };
                 results.Add(result);
+
+                IEnumerable<Result> history = cmdHistory.Where(o => o.Key.Contains(cmd))
+                    .OrderByDescending(o => o.Value)
+                    .Select(m => new Result
+                    {
+                        Title = m.Key,
+                        SubTitle = "this command has been executed " + m.Value + " times",
+                        IcoPath = "Images/cmd.png",
+                        Action = () =>
+                        {
+                            ExecuteCmd(m.Key);
+                            AddCmdHistory(m.Key);
+                        }
+                    }).Take(4);
+
+                results.AddRange(history);
             }
             return results;
         }
 
-        protected override void InitInternal(PluginInitContext context)
+        private static void ExecuteCmd(string cmd)
         {
+            try
+            {
+                Process process = new Process();
+                process.StartInfo.UseShellExecute = true;
+                process.StartInfo.FileName = cmd;
+                process.Start();
+            }
+            catch (Exception e)
+            {
+                MessageBox.Show("WinAlfred cound't execute this command.");
+            }
         }
 
+        protected override void InitInternal(PluginInitContext context)
+        {
+            LoadCmdHistory();
+        }
+
+        //todo:we need provide a common data persist interface for user?
+        private void AddCmdHistory(string cmdName)
+        {
+            if (cmdHistory.ContainsKey(cmdName))
+            {
+                cmdHistory[cmdName] += 1;
+            }
+            else
+            {
+                cmdHistory.Add(cmdName, 1);
+            }
+            PersistCmdHistory();
+        }
+
+        public void LoadCmdHistory()
+        {
+            if (File.Exists(filePath))
+            {
+                FileStream fileStream = new FileStream(filePath, FileMode.Open, FileAccess.Read, FileShare.Read);
+                BinaryFormatter b = new BinaryFormatter();
+                cmdHistory = (Dictionary<string, int>)b.Deserialize(fileStream);
+                fileStream.Close();
+            }
+
+            if (cmdHistory.Count > 1000)
+            {
+                List<string> onlyOnceKeys = (from c in cmdHistory where c.Value == 1 select c.Key).ToList();
+                foreach (string onlyOnceKey in onlyOnceKeys)
+                {
+                    cmdHistory.Remove(onlyOnceKey);
+                }
+            }
+        }
+
+        private void PersistCmdHistory()
+        {
+            FileStream fileStream = new FileStream(filePath, FileMode.Create);
+            BinaryFormatter b = new BinaryFormatter();
+            b.Serialize(fileStream, cmdHistory);
+            fileStream.Close();
+        }
     }
 }

WinAlfred/Helper/KeyboardListener.cs

@@ -2,10 +2,8 @@
 using System.Diagnostics;
 using System.Runtime.CompilerServices;
 using System.Runtime.InteropServices;
-using System.Windows.Input;
-using System.Windows.Threading;
 
-namespace WinAlfred
+namespace WinAlfred.Helper
 {
     public enum KeyEvent : int
     {

WinAlfred/WinAlfred.csproj

@@ -121,7 +121,7 @@
     <Compile Include="Helper\Log.cs" />
     <Compile Include="Helper\Settings.cs" />
     <Compile Include="Helper\WinAlfredException.cs" />
-    <Compile Include="KeyboardListener.cs" />
+    <Compile Include="Helper\KeyboardListener.cs" />
     <Compile Include="Msg.xaml.cs">
       <DependentUpon>Msg.xaml</DependentUpon>
     </Compile>