Add Taskbar Folder Menus v0.5

[sb4ssman]

Summary

Adds Taskbar Folder Menus (taskbar-folder-menus) — compact tray buttons that open configured Shell targets as native popup menus.

Recreates the most useful part of the classic Windows taskbar toolbar workflow: click a small tray button and browse a folder, drive, Desktop, or Control Panel without minimizing any windows.

Features

• One or more configurable folder buttons injected into the system tray
• Native Shell popup menus backed by PIDLs — Shell icons, virtual folders, and namespace roots all work
• Subfolders expand on hover with lazy loading (only fetched when opened — large folders like C:\ open instantly)
• "Open in Explorer" shortcut at the top of every subfolder popup
• Right-click any menu item for the full Windows Shell context menu via IContextMenu
• Supports normal paths, drive roots, and Shell namespace roots (shell:Desktop, shell:ControlPanelFolder, etc.)
• Environment variables expanded in targets (%USERPROFILE%, %SystemRoot%, etc.)
• Configurable grid layout: row, column, or grid with fill order and alignment control
• Full color theming: text, background, hover (#4488FF default), pressed, border, corner radius, opacity, shine

Entry format

🖥=shell:Desktop
⚙=shell:ControlPanelFolder
📥=%USERPROFILE%\Downloads
C:=C:\

Technical

• Same GetTaskbarXamlRoot / GetSystemTrayModuleHandle / IconView::IconView pattern as other tray mods
• Menu owner subclassed via SetWindowSubclass for WM_INITMENUPOPUP (lazy subfolder load) and WM_MENURBUTTONDOWN (right-click → IContextMenu)
• ILCloneFull used to maintain PIDL copies for both lazy-load queue and right-click lookup
• Shell namespace enumerated via IShellFolder::EnumObjects; items executed via ShellExecuteEx by PIDL
• Duplicates in shell:Desktop suppressed automatically

Test plan

• Default settings load two buttons (Desktop + Control Panel)
• Clicking a button opens the correct folder as a popup menu with Shell icons
• Subfolders expand on hover with "Open in Explorer" at top
• Right-clicking an item shows Windows Shell context menu
• shell:Desktop, shell:ControlPanelFolder, path targets, and %VAR% expansion all work
• Grid layout modes (row/column/grid) and all position options work
• Mod loads and unloads cleanly with no crashes

🤖 Generated with Claude Code

[m417z]

• I think it makes more sense for the folders option to be an array.
• If HookTaskbarDllSymbols fails, return FALSE at Wh_ModInit.
• Instead of handling Taskbar.View.dll and hooking LoadLibraryExW, you can hook TrayUI::StartTaskbar and simplify the implementation. There are several mods you can use as reference, such as taskbar-ai-quota.
• You might want to clarify that this is a Win11-only mod, and that it won't work on Win10.