File explorer support

.github/workflows/build.yml

@@ -8,11 +8,11 @@ jobs:
   build:
     runs-on: windows-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
       - name: Setup .NET
-        uses: actions/setup-dotnet@v1
+        uses: actions/setup-dotnet@v2
         with:
-          dotnet-version: 3.1.301
+          dotnet-version: 5.0.x
       - name: Restore dependencies
         run: dotnet restore
       - name: Build

.github/workflows/publish.yml

@@ -11,11 +11,11 @@ jobs:
   publish:
     runs-on: windows-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
       - name: Setup .NET
-        uses: actions/setup-dotnet@v1
+        uses: actions/setup-dotnet@v2
         with:
-          dotnet-version: 3.1.301
+          dotnet-version: 5.0.x
       - name: get version
         id: version
         uses: notiz-dev/github-action-json-property@release

Wox.Plugin.Runner/Runner.cs

@@ -96,13 +96,15 @@ public Control CreateSettingPanel()
             return new RunnerSettings(viewModel);
         }
 
-        private bool RunCommand(ActionContext e, Command command, IEnumerable<string> terms = null)
+        private bool RunCommand(ActionContext e, Command command, IEnumerable<string>? terms = null)
         {
             try
             {
                 var args = GetProcessArguments(command, terms);
-                var startInfo = new ProcessStartInfo(args.FileName, args.Arguments);
-                startInfo.UseShellExecute = true;
+                var startInfo = new ProcessStartInfo(args.FileName, args.Arguments)
+                {
+                    UseShellExecute = true
+                };
                 if (args.WorkingDirectory != null)
                 {
                     startInfo.WorkingDirectory = args.WorkingDirectory;
@@ -116,14 +118,15 @@ private bool RunCommand(ActionContext e, Command command, IEnumerable<string> te
                 if (w32Ex.Message != "The operation was canceled by the user")
                     throw;
             }
-            catch (FormatException)
+            catch (FormatException ex)
             {
                 Context.API.ShowMsg("There was a problem. Please check the arguments format for the command.");
+                Context.API.LogException(nameof(Runner), "Argument format was invalid", ex);
             }
             return true;
         }
 
-        private ProcessArguments GetProcessArguments(Command c, IEnumerable<string> terms)
+        private ProcessArguments GetProcessArguments(Command c, IEnumerable<string>? terms)
         {
             var argString = string.Empty;
 
@@ -135,7 +138,7 @@ private ProcessArguments GetProcessArguments(Command c, IEnumerable<string> term
                     // remove '{*}' flag from arguments
                     argString = c.ArgumentsFormat.Remove(c.ArgumentsFormat.Length - 3, 3);
                     // add user specified arguments to the arguments to be passed
-                    argString = argString + string.Join(" ", terms);
+                    argString += terms != null ? string.Join(" ", terms) : "";
                 }
                 // command's arguments HAS flag/s, thus user is able to manually pass in arguments e.g. settings: {0} {1}
                 // or command's arguments HAS set normal text arguments e.g. settings: -h myremotecomp -p 22
@@ -148,11 +151,18 @@ private ProcessArguments GetProcessArguments(Command c, IEnumerable<string> term
             }
 
             var workingDir = c.WorkingDirectory;
+            if (workingDir == "{explorer}")
+            {
+                var openExplorerPaths = ExplorerPathsService.GetOpenExplorerPaths();
+                workingDir = openExplorerPaths.FirstOrDefault();
+            }
+
             if (string.IsNullOrEmpty(workingDir))
             {
                 // Use directory where executable is based.
                 workingDir = Path.GetDirectoryName(c.Path);
-            }
+            } 
+
             return new ProcessArguments
             {
                 FileName = c.Path,

Wox.Plugin.Runner/Services/ExplorerPathsService.cs

@@ -0,0 +1,91 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Runtime.InteropServices;
+
+namespace Wox.Plugin.Runner
+{
+    class ExplorerPathsService
+    {
+        public static List<string> GetOpenExplorerPaths()
+        {
+            var results = new List<string>();
+            if (OperatingSystem.IsWindows())
+            {
+                Type? type = Type.GetTypeFromProgID("Shell.Application");
+                if (type == null) return results;
+                dynamic? shell = Activator.CreateInstance(type);
+                if (shell == null) return results;
+                try
+                {
+                    var fullResults = new List<ExplorerResult>();
+
+                    var openWindows = shell.Windows();
+                    for (int i = 0; i < openWindows.Count; i++)
+                    {
+                        var window = openWindows.Item(i);
+                        if (window == null) continue;
+                        var fileName = Path.GetFileName((string)window.FullName);
+                        if (fileName.ToLower() == "explorer.exe")
+                        {
+                            string locationUrl = window.LocationURL;
+                            if (!string.IsNullOrEmpty(locationUrl))
+                            {
+                                fullResults.Add(new ExplorerResult(new IntPtr(window.HWND), new Uri(locationUrl).LocalPath));
+                            }
+                        }
+                    }
+
+                    int zIndex = fullResults.Count;
+                    EnumWindows((IntPtr hwnd, IntPtr param) =>
+                    {
+                        var result = fullResults.Find(v => v.HWND == hwnd);
+                        if(result != null)
+                        {
+                            result.ZIndex = zIndex;
+                            zIndex -= 1;
+                        }
+                        // zIndex is also used as a counter: how many more windows do we have to find
+                        return zIndex > 0;
+                    }, IntPtr.Zero);
+
+                    // sort descending
+                    fullResults.Sort((a, b) => b.ZIndex - a.ZIndex);
+                    results.AddRange(fullResults.Select(v => v.Path));
+                }
+                finally
+                {
+                    Marshal.FinalReleaseComObject(shell);
+                }
+            }
+
+            return results;
+        }
+
+        private class ExplorerResult
+        {
+            /// <summary>
+            /// Higher values means that the window is closer to the user
+            /// </summary>
+            public int ZIndex { get; set; } = 0;
+            public IntPtr HWND { get; }
+            public string Path { get; }
+
+            public ExplorerResult(IntPtr hwnd, string path)
+            {
+                HWND = hwnd;
+                Path = path;
+            }
+        }
+
+        [DllImport("user32.dll")]
+        [return: MarshalAs(UnmanagedType.Bool)]
+        private static extern bool EnumWindows(EnumWindowsProc enumProc, IntPtr lParam);
+
+        // Delegate to filter which windows to include 
+        public delegate bool EnumWindowsProc(IntPtr hWnd, IntPtr lParam);
+
+
+    }
+}

Wox.Plugin.Runner/Settings/RunnerSettings.xaml

@@ -63,6 +63,7 @@
                     <RowDefinition/>
                     <RowDefinition/>
                     <RowDefinition/>
+                    <RowDefinition/>
                 </Grid.RowDefinitions>
                 <Label Grid.Row="0" Content="Description:" HorizontalAlignment="Left" Margin="5,10,0,0" VerticalAlignment="Top"/>
                 <TextBox  Grid.Row="0" Grid.Column="1" Height="23" Margin="5,3,10,0" Text="{Binding SelectedCommand.Description, UpdateSourceTrigger=PropertyChanged}" VerticalAlignment="Top"/>
@@ -74,9 +75,14 @@
                 <Label  Grid.Row="4"  Content="Working dir:" HorizontalAlignment="Left" Margin="10,10,0,0" VerticalAlignment="Top"/>
                 <TextBox  Grid.Row="4"  Grid.Column="1" Name="tbWorkDir" Height="23" Margin="5,10,10,0" Text="{Binding SelectedCommand.WorkingDirectory, UpdateSourceTrigger=PropertyChanged}" VerticalAlignment="Top"/>
                 <Button  Grid.Row="5"  Grid.Column="1" HorizontalAlignment="Right" Content="Browse" Name="btnBrowseWorkDir" Margin="0,10,10,0" VerticalAlignment="Top" Click="btnBrowseWorkDir_Click" />
-                <Label  Grid.Row="6"  Content="Arguments:" HorizontalAlignment="Left" Margin="5,10,0,0" VerticalAlignment="Top"/>
-                <TextBox  Grid.Row="6"  Grid.Column="1" Height="23" Margin="5,10,10,0" Text="{Binding SelectedCommand.ArgumentsFormat, UpdateSourceTrigger=PropertyChanged}" VerticalAlignment="Top"/>
-                <StackPanel Grid.Row="7" Grid.Column="1">
+                <StackPanel Grid.Row="6" Grid.Column="1">
+                    <TextBlock FontSize="12" HorizontalAlignment="Left" Margin="5,10,0,0" VerticalAlignment="Top" TextWrapping="WrapWithOverflow">
+                        Use {explorer} to use the currently open file explorer window's path
+                    </TextBlock>
+                </StackPanel>
+                <Label  Grid.Row="7"  Content="Arguments:" HorizontalAlignment="Left" Margin="5,10,0,0" VerticalAlignment="Top"/>
+                <TextBox  Grid.Row="7"  Grid.Column="1" Height="23" Margin="5,10,10,0" Text="{Binding SelectedCommand.ArgumentsFormat, UpdateSourceTrigger=PropertyChanged}" VerticalAlignment="Top"/>
+                <StackPanel Grid.Row="8" Grid.Column="1">
                     <TextBlock FontSize="12" HorizontalAlignment="Left" Margin="5,10,0,0" VerticalAlignment="Top" TextWrapping="WrapWithOverflow">
                         Add {*} flag to the end to allow infinite arguments to passed through the query window
                     </TextBlock>

Wox.Plugin.Runner/Wox.Plugin.Runner.csproj

@@ -1,15 +1,18 @@
-<Project Sdk="Microsoft.NET.Sdk.WindowsDesktop">
+<Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
-    <TargetFramework>netcoreapp3.1</TargetFramework>
+    <TargetFramework>net5.0-windows</TargetFramework>
     <OutputType>Library</OutputType>
     <SolutionDir Condition="$(SolutionDir) == '' Or $(SolutionDir) == '*Undefined*'">..\</SolutionDir>
     <RestorePackages>true</RestorePackages>
     <GenerateAssemblyInfo>false</GenerateAssemblyInfo>
+    <Nullable>enable</Nullable>
     <UseWindowsForms>true</UseWindowsForms>
     <UseWPF>true</UseWPF>
     <AppendTargetFrameworkToOutputPath>false</AppendTargetFrameworkToOutputPath>
     <AppendRuntimeIdentifierToOutputPath>false</AppendRuntimeIdentifierToOutputPath>
     <CopyLocalLockFileAssemblies>true</CopyLocalLockFileAssemblies>
+    <PlatformTarget>AnyCPU</PlatformTarget>
+    <AnalysisLevel>none</AnalysisLevel>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|AnyCPU'">
     <OutputPath>..\Output\Release\Wox.Plugin.Runner</OutputPath>
@@ -18,7 +21,7 @@
     <OutputPath>..\Output\Debug\Wox.Plugin.Runner</OutputPath>
   </PropertyGroup>
   <ItemGroup>
-    <PackageReference Include="Flow.Launcher.Plugin" Version="1.4.0" />
+    <PackageReference Include="Flow.Launcher.Plugin" Version="2.1.1" />
     <PackageReference Include="System.Data.DataSetExtensions" Version="4.5.0" />
   </ItemGroup>
 
@@ -36,7 +39,4 @@
       <CopyToOutputDirectory>Always</CopyToOutputDirectory>
     </Content>
   </ItemGroup>
-  <ItemGroup>
-    <PackageReference Include="CommonServiceLocator" Version="1.3" />
-  </ItemGroup>
 </Project>