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Add an lvt plugin that detects and dumps the visual tree of Avalonia
desktop applications. The plugin follows the same injection pattern as
the WPF provider:
1. Plugin DLL (lvt_avalonia_plugin.dll) - detects Avalonia.Base.dll in
the target process, injects the TAP DLL, reads tree JSON via named
pipe.
2. TAP DLL (lvt_avalonia_tap_x64.dll) - native DLL injected into the
target process. Hosts .NET CLR via hostfxr and calls the managed
tree walker.
3. Managed tree walker (LvtAvaloniaTreeWalker.dll) - walks the Avalonia
visual tree via Visual.VisualChildren (using reflection), serializes
type names, bounds, text content, visibility, and element names to
JSON.
Also includes:
- Simple Hello World Avalonia test app (tests/avalonia_test_app/)
- CMake build targets for the plugin and TAP DLL
- Fix plugin graft code to prefer 'text' over 'name' JSON field
Tested end-to-end: detects Avalonia 11.2.7, dumps 37-element tree with
TextBlock ('Hello World'), Button ('Click Me'), TextBox elements.
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
- Add docs/avalonia-plugin.md with installation, usage, and architecture - Update README.md: mention Avalonia in framework list, add Optional plugins table under Plugin system section - Update docs/architecture.md: add Avalonia to framework detection table Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
The POST_BUILD copy command for the Avalonia TAP DLL expects the managed LvtAvaloniaTreeWalker.dll to already exist. Add a dotnet build step before cmake --build in both CI and release workflows. Also include the plugins/ directory in CI artifacts and release packages. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Replace copy_if_different with 'dotnet publish -o <dir>' to place the managed assembly directly in the build output. This avoids failures when the bin/Release/ output path doesn't match expectations across different .NET SDK versions. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
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Summary
Add an lvt plugin that detects and dumps the visual tree of Avalonia UI desktop applications.
Components
lvt_avalonia_plugin.dll) - C ABI plugin detectingAvalonia.Base.dllin the target process, injecting the TAP DLL, reading tree JSON via named pipelvt_avalonia_tap_x64.dll) - native DLL injected into the target process; hosts .NET CLR via hostfxr to call the managed tree walker; unloads itself viaFreeLibraryAndExitThreadafter collectionLvtAvaloniaTreeWalker.dll) - walks Avalonia'sVisual.VisualChildrenvia reflection, serializes type names, bounds, text content, visibility to JSONtests/avalonia_test_app/) - simple Hello World Avalonia desktop app with TextBlock, Button, TextBoxdocs/avalonia-plugin.mdwith installation/usage; README and architecture docs updatedBug fix
Updated
plugin_loader.cppgraft code to prefer thetextovernameJSON field when setting element text, matching how the WPF provider's graft works.Testing