Make LeafNode property nullable and return null when the binding expression
has no nodes (e.g., when using a constant source with a converter but no path).
This fixes an ArgumentOutOfRangeException that occurred when accessing
LeafNode or Description properties on such bindings.
Fixes#20441
Co-authored-by: Claude Sonnet 4.5 <noreply@anthropic.com>
* Add support for parsing BoxShadows with colors expressions with parentheses
* Added BoxShadowsTests
* BoxShadow parsing should also respect parentheses
* Add StringSplitter
* Fix test
* Apply suggestions from code review
Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
* StringSplitter should not accept same bracket pairs
* Returns empty array only when input is null
* Add StringSplitterTests
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Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
* Add NumericUpDown NumberFormat failing test
* Force text update when NumberFormat has changed
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Co-authored-by: Julien Lebosquain <julien@lebosquain.net>
* [X11] Clean up IME inconsistencies
* Fix where combinations like `GTK_IM_MODULE=none XMODIFIERS=@im=fcitx` can actually enable IME instead of forbid it - this is consistent with `AvaloniaX11Platform.EnableIme()`
* XIM should always be used if none of `IM_MODULE` is set (instead of only when they are explicitly set to `xim`)
* [X11] Try connecting to IMEs specified in `XMODIFIERS=@im=` through D-Bus before falling back to XIM
* [X11] Refine `XMODIFIERS=@im=` parsing
* Only the first one specified will be parsed and accepted
* Implement FillRuleProperty on Polyline
* Implement FillRule Property on Polygon
* Add tests
* Added comments to new public APIs
* Added more comments
* More tests
* More tests
* Updated API
* Added render tests
* More render tests
* Reintroducing the original PolylineGeometry constructor
* Updated API file
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Co-authored-by: Julien Lebosquain <julien@lebosquain.net>
* Reduce allocations for FontFamily.Parse
* Turn Trie data into static data
* Use static lambda in s_cachedLanguage.GetOrAdd
* Make LineBreakEnumerator+LineBreakState a ref struct to avoid allocations
* Use backing field for storing trie data in debug builds
.NET Standard compatibility
* Implement layout rounding for child sizes
Added layout rounding for child measurements in UniformGrid.
* Remove comment on child measurement in UniformGrid
Removed comment about measuring children in UniformGrid.
* Improved layout rounding logic for UniformGrid
* Grid_Ensures_Consistent_Cell_Width_When_UseLayoutRounding
* Fixed invalid renering of controls with non-zero bounds position.
Fixed text clipping of text elements inside LayoutTransformControl.
* Fixed rendering of VisualBrush.
* Fixed control clipping.
* Fixed opacity mask state.
* Reworked to skip rendering of elements out of clip.
* Code cleanup.
* Added unit test.
* Parameters order.
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Co-authored-by: PleshakovDV <pleshakovdv@ugpa.ru>
* Improve effect render performance by providing Skia with information about subscene bounds
* Fixed test
* apidiff
* Update API diff
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Co-authored-by: Julien Lebosquain <julien@lebosquain.net>
* Added unit tests for ReversibleStackPanel (#20171)
* Invalidates_Arrange_On_Reverse_Order_Change fails.
* Fixed ReversibleStackPanel not invalidating arrange on ReverseOrder change (#20171)
* Add failing test for preserving run formatting during selection
* Fix selection styling to preserve original text formatting in SelectableTextBlock
* fix: apply old logic when `_textRuns` is null
* Fixed the issue where a newline character required two backspaces to be deleted in Windows.
* add unit test
* Handling the differences between HeadlessTextShaperStub and TextShaperImpl
* Make unit tests available
* Treat "\r\n" as a single unit.
* The backspace test against CRLF
* Backspace should treat CRLF as a unit.
* Prevents repeated platform calls for matches that are already found and cached.
Ensures family-name normalization logic correctly maps platform-provided family names.
* Add missing test font
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Co-authored-by: Gillibald <stebner@avaloniaui.net>