Add drag and drop item creation

MainWindow.xaml.cs

@@ -3,6 +3,7 @@ using System.Windows.Controls;
 using System.Windows.Forms;
 using System.Windows.Media;
 using System.IO;
+using System.Text;
 using System.Windows.Input;
 using TaskbarLauncher.Models;
 using TaskbarLauncher.Services;
@@ -156,15 +157,42 @@ public partial class MainWindow : Window
 
     private void ItemsTree_DragOver(object sender, System.Windows.DragEventArgs e)
     {
-        e.Effects = CanDrop(e) ? System.Windows.DragDropEffects.Move : System.Windows.DragDropEffects.None;
+        if (CanMoveDroppedItem(e))
+        {
+            e.Effects = System.Windows.DragDropEffects.Move;
+        }
+        else if (CanAddExternalDroppedItems(e.Data))
+        {
+            e.Effects = System.Windows.DragDropEffects.Copy;
+        }
+        else
+        {
+            e.Effects = System.Windows.DragDropEffects.None;
+        }
+
         e.Handled = true;
     }
 
     private void ItemsTree_Drop(object sender, System.Windows.DragEventArgs e)
     {
-        if (controller is null ||
-            !e.Data.GetDataPresent(typeof(LauncherItem)) ||
-            e.Data.GetData(typeof(LauncherItem)) is not LauncherItem draggedItem)
+        if (controller is null)
+        {
+            return;
+        }
+
+        if (e.Data.GetDataPresent(typeof(LauncherItem)) &&
+            e.Data.GetData(typeof(LauncherItem)) is LauncherItem draggedItem)
+        {
+            MoveDroppedItem(e, draggedItem);
+            return;
+        }
+
+        AddExternalDroppedItems(e);
+    }
+
+    private void MoveDroppedItem(System.Windows.DragEventArgs e, LauncherItem draggedItem)
+    {
+        if (controller is null)
         {
             return;
         }
@@ -213,7 +241,59 @@ public partial class MainWindow : Window
         e.Handled = true;
     }
 
-    private bool CanDrop(System.Windows.DragEventArgs e)
+    private void AddExternalDroppedItems(System.Windows.DragEventArgs e)
+    {
+        if (controller is null)
+        {
+            return;
+        }
+
+        List<LauncherItem> droppedItems = CreateItemsFromDropData(e.Data, controller.Config.DisplayMode);
+        if (droppedItems.Count == 0)
+        {
+            return;
+        }
+
+        ApplyCurrentItem();
+
+        TreeViewItem? targetTreeItem = FindAncestor<TreeViewItem>(e.OriginalSource as DependencyObject);
+        LauncherItem? targetItem = targetTreeItem?.Tag as LauncherItem;
+        if (targetItem is null)
+        {
+            controller.Config.Items.AddRange(droppedItems);
+        }
+        else if (targetItem.Type == LauncherItemType.Menu)
+        {
+            targetItem.Children.AddRange(droppedItems);
+            if (targetTreeItem is not null)
+            {
+                targetTreeItem.IsExpanded = true;
+            }
+        }
+        else
+        {
+            List<LauncherItem>? targetSiblings = FindSiblings(controller.Config.Items, targetItem);
+            if (targetSiblings is null)
+            {
+                controller.Config.Items.AddRange(droppedItems);
+            }
+            else
+            {
+                int targetIndex = targetSiblings.IndexOf(targetItem);
+                targetSiblings.InsertRange(targetIndex + 1, droppedItems);
+            }
+        }
+
+        LauncherItem itemToSelect = droppedItems[0];
+        selectedPath = FindItemPath(itemToSelect);
+        RefreshView(itemToSelect);
+        StatusText.Text = droppedItems.Count == 1
+            ? $"Added {itemToSelect.Title}. Click Save to keep it."
+            : $"Added {droppedItems.Count} items. Click Save to keep them.";
+        e.Handled = true;
+    }
+
+    private bool CanMoveDroppedItem(System.Windows.DragEventArgs e)
     {
         if (!e.Data.GetDataPresent(typeof(LauncherItem)) ||
             e.Data.GetData(typeof(LauncherItem)) is not LauncherItem draggedItem)
@@ -226,6 +306,204 @@ public partial class MainWindow : Window
         return targetItem is null || (!ReferenceEquals(draggedItem, targetItem) && !ContainsItem(draggedItem, targetItem));
     }
 
+    private static bool CanAddExternalDroppedItems(System.Windows.IDataObject data)
+    {
+        return data.GetDataPresent(System.Windows.DataFormats.FileDrop) ||
+            data.GetDataPresent(System.Windows.DataFormats.UnicodeText) ||
+            data.GetDataPresent(System.Windows.DataFormats.Text) ||
+            data.GetDataPresent("UniformResourceLocatorW") ||
+            data.GetDataPresent("UniformResourceLocator");
+    }
+
+    private static List<LauncherItem> CreateItemsFromDropData(System.Windows.IDataObject data, LauncherDisplayMode displayMode)
+    {
+        List<LauncherItem> items = [];
+
+        if (data.GetDataPresent(System.Windows.DataFormats.FileDrop) &&
+            data.GetData(System.Windows.DataFormats.FileDrop) is string[] paths)
+        {
+            foreach (string path in paths)
+            {
+                LauncherItem? item = CreateItemFromPath(path, displayMode);
+                if (item is not null)
+                {
+                    items.Add(item);
+                }
+            }
+        }
+
+        if (items.Count > 0)
+        {
+            return items;
+        }
+
+        string? droppedText = GetDroppedText(data);
+        if (!string.IsNullOrWhiteSpace(droppedText))
+        {
+            foreach (string line in droppedText.Split(["\r\n", "\n"], StringSplitOptions.RemoveEmptyEntries | StringSplitOptions.TrimEntries))
+            {
+                LauncherItem? item = CreateItemFromText(line, displayMode);
+                if (item is not null)
+                {
+                    items.Add(item);
+                }
+            }
+        }
+
+        return items;
+    }
+
+    private static string? GetDroppedText(System.Windows.IDataObject data)
+    {
+        if (data.GetDataPresent(System.Windows.DataFormats.UnicodeText))
+        {
+            return data.GetData(System.Windows.DataFormats.UnicodeText) as string;
+        }
+
+        if (data.GetDataPresent(System.Windows.DataFormats.Text))
+        {
+            return data.GetData(System.Windows.DataFormats.Text) as string;
+        }
+
+        return GetDroppedUrlFormatText(data, "UniformResourceLocatorW", Encoding.Unicode) ??
+            GetDroppedUrlFormatText(data, "UniformResourceLocator", Encoding.UTF8);
+    }
+
+    private static string? GetDroppedUrlFormatText(System.Windows.IDataObject data, string format, Encoding encoding)
+    {
+        if (!data.GetDataPresent(format))
+        {
+            return null;
+        }
+
+        object? rawData = data.GetData(format);
+        return rawData switch
+        {
+            string text => text,
+            byte[] bytes => DecodeDroppedUrlBytes(bytes, encoding),
+            MemoryStream stream => DecodeDroppedUrlBytes(stream.ToArray(), encoding),
+            _ => null
+        };
+    }
+
+    private static string DecodeDroppedUrlBytes(byte[] bytes, Encoding encoding)
+    {
+        return encoding.GetString(bytes).TrimEnd('\0', '\r', '\n', ' ');
+    }
+
+    private static LauncherItem? CreateItemFromText(string text, LauncherDisplayMode displayMode)
+    {
+        string target = text.Trim();
+        if (!Uri.TryCreate(target, UriKind.Absolute, out Uri? uri) ||
+            (uri.Scheme != Uri.UriSchemeHttp && uri.Scheme != Uri.UriSchemeHttps))
+        {
+            return null;
+        }
+
+        return new LauncherItem
+        {
+            Title = GetWebsiteTitle(uri),
+            Type = LauncherItemType.Website,
+            Target = uri.ToString(),
+            IconPath = uri.ToString(),
+            DisplayMode = displayMode
+        };
+    }
+
+    private static LauncherItem CreateWebsiteItem(Uri uri, string title, LauncherDisplayMode displayMode)
+    {
+        return new LauncherItem
+        {
+            Title = title,
+            Type = LauncherItemType.Website,
+            Target = uri.ToString(),
+            IconPath = uri.ToString(),
+            DisplayMode = displayMode
+        };
+    }
+
+    private static LauncherItem? CreateItemFromPath(string path, LauncherDisplayMode displayMode)
+    {
+        if (string.IsNullOrWhiteSpace(path))
+        {
+            return null;
+        }
+
+        string fullPath = path.Trim();
+        if (Directory.Exists(fullPath))
+        {
+            return new LauncherItem
+            {
+                Title = new DirectoryInfo(fullPath).Name,
+                Type = LauncherItemType.Folder,
+                Target = fullPath,
+                IconPath = fullPath,
+                DisplayMode = displayMode
+            };
+        }
+
+        if (!File.Exists(fullPath))
+        {
+            return null;
+        }
+
+        if (Path.GetExtension(fullPath).Equals(".url", StringComparison.OrdinalIgnoreCase))
+        {
+            return CreateItemFromInternetShortcut(fullPath, displayMode);
+        }
+
+        LauncherItemType type = IsApplicationPath(fullPath) ? LauncherItemType.App : LauncherItemType.File;
+        return new LauncherItem
+        {
+            Title = Path.GetFileNameWithoutExtension(fullPath),
+            Type = type,
+            Target = fullPath,
+            IconPath = fullPath,
+            DisplayMode = displayMode
+        };
+    }
+
+    private static LauncherItem? CreateItemFromInternetShortcut(string path, LauncherDisplayMode displayMode)
+    {
+        foreach (string line in File.ReadLines(path))
+        {
+            if (!line.StartsWith("URL=", StringComparison.OrdinalIgnoreCase))
+            {
+                continue;
+            }
+
+            string target = line["URL=".Length..].Trim();
+            if (Uri.TryCreate(target, UriKind.Absolute, out Uri? uri) &&
+                (uri.Scheme == Uri.UriSchemeHttp || uri.Scheme == Uri.UriSchemeHttps))
+            {
+                return CreateWebsiteItem(uri, Path.GetFileNameWithoutExtension(path), displayMode);
+            }
+        }
+
+        return null;
+    }
+
+    private static bool IsApplicationPath(string path)
+    {
+        string extension = Path.GetExtension(path);
+        return extension.Equals(".exe", StringComparison.OrdinalIgnoreCase) ||
+            extension.Equals(".lnk", StringComparison.OrdinalIgnoreCase) ||
+            extension.Equals(".bat", StringComparison.OrdinalIgnoreCase) ||
+            extension.Equals(".cmd", StringComparison.OrdinalIgnoreCase) ||
+            extension.Equals(".ps1", StringComparison.OrdinalIgnoreCase);
+    }
+
+    private static string GetWebsiteTitle(Uri uri)
+    {
+        string host = uri.Host;
+        if (host.StartsWith("www.", StringComparison.OrdinalIgnoreCase))
+        {
+            host = host[4..];
+        }
+
+        return string.IsNullOrWhiteSpace(host) ? uri.ToString() : host;
+    }
+
     private static bool ContainsItem(LauncherItem parent, LauncherItem possibleChild)
     {
         foreach (LauncherItem child in parent.Children)

README.md

@@ -13,7 +13,7 @@ Download the compiled Windows release from:
 - System tray launcher
 - Global hotkey, default `Ctrl+Alt+Space`
 - Search/filter in the launcher popup
-- Nested menus and drag/drop ordering in Settings
+- Nested menus, drag/drop ordering, and drag/drop item creation in Settings
 - Per-item icon and display mode
 - Automatic icon selection from app/folder targets
 - Portable `config.json`

TaskbarLauncher.csproj

@@ -12,8 +12,8 @@
     <Authors>Ray Berezowski</Authors>
     <ApplicationIcon>Assets\AppIcon.ico</ApplicationIcon>
     <Version>1.0.1</Version>
-    <AssemblyVersion>1.0.1.1</AssemblyVersion>
-    <FileVersion>1.0.1.1</FileVersion>
+    <AssemblyVersion>1.0.1.2</AssemblyVersion>
+    <FileVersion>1.0.1.2</FileVersion>
     <InformationalVersion>1.0.1</InformationalVersion>
   </PropertyGroup>
 

docs/INSTALL.md

@@ -30,6 +30,7 @@ From Settings you can:
 - Add submenus
 - Add folders, apps, files, and websites
 - Drag/drop items to reorder
+- Drag/drop files, folders, shortcuts, or web links into the launcher item list
 - Set per-item icon sizes
 - Back up and restore `config.json`
 - Enable Start with Windows