Refactoring command args and change the signal instance implement.

Wox/CommandArgs/CommandArgsFactory.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Reflection;
+using System.Text;
+using System.Windows.Input;
+
+namespace Wox.CommandArgs
+{
+    internal static class CommandArgsFactory
+    {
+        private static List<ICommandArg> commandArgs;
+
+        static CommandArgsFactory()
+        {
+            var type = typeof(ICommandArg);
+            commandArgs = Assembly.GetExecutingAssembly()
+                    .GetTypes()
+                    .Where(p => type.IsAssignableFrom(p) && !p.IsInterface)
+                    .Select(t => Activator.CreateInstance(t) as ICommandArg).ToList();
+        }
+
+        public static void Execute(IList<string> args)
+        {
+            if (args.Count > 0)
+            {
+                string command = args[0];
+                ICommandArg cmd = commandArgs.FirstOrDefault(o => o.Command.ToLower() == command);
+                if (cmd != null)
+                {
+                    args.RemoveAt(0); //remove command itself
+                    cmd.Execute(args);
+                }
+            }
+            else
+            {
+                App.Window.ShowApp();
+            }
+        }
+    }
+}

Wox/CommandArgs/HideStartCommandArg.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace Wox.CommandArgs
+{
+    public class HideStartCommandArg : ICommandArg
+    {
+        public string Command
+        {
+            get { return "hidestart"; }
+        }
+
+        public void Execute(IList<string> args)
+        {
+            //App.Window.ShowApp();
+            //App.Window.HideApp();
+        }
+    }
+}

Wox/CommandArgs/ICommandArg.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace Wox.CommandArgs
+{
+    interface ICommandArg
+    {
+        string Command { get; }
+        void Execute(IList<string> args);
+    }
+}

Wox/CommandArgs/InstallPluginCommandArg.cs

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+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Text;
+using System.Windows;
+using Wox.Helper;
+
+namespace Wox.CommandArgs
+{
+    public class InstallPluginCommandArg : ICommandArg
+    {
+        public string Command
+        {
+            get { return "installplugin"; }
+        }
+
+        public void Execute(IList<string> args)
+        {
+            if (args.Count > 0)
+            {
+                var path = args[0];
+                if (!File.Exists(path))
+                {
+                    MessageBox.Show("Plugin " + path + " didn't exist");
+                    return;
+                }
+                PluginInstaller.Install(path);
+            }
+        }
+    }
+}

Wox/CommandArgs/PluginDebuggerCommandArg.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Windows.Input;
+
+namespace Wox.CommandArgs
+{
+    public class PluginDebuggerCommandArg : ICommandArg
+    {
+        public string Command
+        {
+            get { return "plugindebugger"; }
+        }
+
+        public void Execute(IList<string> args)
+        {
+            if (args.Count > 0)
+            {
+                var pluginFolderPath = args[0];
+                PluginLoader.Plugins.ActivatePluginDebugger(pluginFolderPath);
+            }
+        }
+    }
+}

Wox/CommandArgs/QueryCommandArg.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace Wox.CommandArgs
+{
+    public class QueryCommandArg : ICommandArg
+    {
+        public string Command
+        {
+            get { return "query"; }
+        }
+
+        public void Execute(IList<string> args)
+        {
+            if (args.Count > 0)
+            {
+                string query = args[0];
+                App.Window.ChangeQuery(query);
+            }
+            App.Window.ShowApp();
+        }
+    }
+}

Wox/CommandArgs/ReloadPluginCommandArg.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using Wox.PluginLoader;
+
+namespace Wox.CommandArgs
+{
+    public class ReloadPluginCommandArg : ICommandArg
+    {
+        public string Command
+        {
+            get { return "reloadplugin"; }
+        }
+
+        public void Execute(IList<string> args)
+        {
+            Plugins.Init();
+        }
+    }
+}