WPF revealed files through the shell COM API (SHOpenFolderAndSelectItems):
selecting several assemblies and choosing "Open Containing Folder" opened
one Explorer window per folder with all of that folder's files selected,
reusing a window already open at the location. The Avalonia port replaced
this with explorer.exe /select, invoked once per file, so revealing N
assemblies spawned N new windows and a single reveal never reused an
existing one.
Restore the shell-COM reveal on Windows behind the existing cross-platform
ShellHelper, grouping the selection by containing folder. macOS keeps a
single Finder "open -R" for the whole selection; Linux, lacking a portable
select-item hook, opens each distinct parent folder once instead of one
window per file. The folder grouping is a pure, unit-tested seam so the
behaviour is verified without launching the OS file manager.
The Windows COM portion is adapted from the pre-Avalonia ShellHelper; its
author's copyright notice is retained per its MIT license.
Assisted-by: Claude:claude-opus-4-8:Claude Code
The Avalonia port had placed the UI app in an ILSpy.* namespace tree,
while the csproj RootNamespace and every prior release (through 10.1)
use ICSharpCode.ILSpy.*. Restoring the historical namespace reduces the
public API diff against release/10.1 for plugin authors and removes the
shadowing that forced global:: qualifiers in the test project. The
Images class and AccessOverlayIcon enum move back into the root
namespace (as in 10.1), since an ICSharpCode.ILSpy.Images namespace
would shadow the Images class for all code inside ICSharpCode.ILSpy.
Assisted-by: Claude:claude-fable-5:Claude Code
Refactor of the MessageBus port: CurrentAssemblyListChangedEventArgs,
TabPagesCollectionChangedEventArgs, and SettingsChangedEventArgs now
share a generic base — abstract WrappedEventArgs<T>(T inner) : EventArgs
exposing an explicit `Inner` property. The three subclasses collapse to
one-liners with no extra body, and consumers read .Inner uniformly
across all three. No implicit conversion operator — the unwrap is
always visible at the read site.
Brings WPF's MessageBus pattern to the Avalonia port so future features
(updater banner, navigate-to-reference plumbing, cross-pane settings
notifications) can fan out without each subscriber importing every
publisher's class. Infrastructure only — no existing Avalonia code wires
the bus yet; this commit makes it available.
Siegfried Pammer