Split CompositionExpressions into a separate published NuGet package

The typed expression DSL (Microsoft.Toolkit.Uwp.UI.Animations.ExpressionsFork
nodes + ExpressionFunctions, the AnimatableNode wrappers,
BindableCompositionPropertySet, and AnimationConstants) was already
compiled directly into CompositionCollectionView.dll. To let other
consumers (e.g. Combobulate) take a NuGet dependency on just the
expression DSL without pulling in the collection-view types, ship it
as its own assembly + package.

Changes:
- src/CompositionExpressions/ : new UWP class library mirroring
  src/CompositionExpressions.WinAppSdk/. Compiles the same source
  files (still physically located under src/CompositionCollectionView/
  to keep one canonical copy) but against the UAP target. Excludes
  TrackedInteractionNodes.cs which uses Microsoft.UI.Composition.Interactions
  APIs without a UWP counterpart we want to ship.
- src/CompositionCollectionView/CompositionCollectionView.csproj :
  remove the ExpressionsFork/AnimatableNodes/BindableCompositionPropertySet/
  AnimationConstants Compile entries and ProjectReference the new
  CompositionExpressions project instead. Mirrors what CCV.WinAppSdk
  has been doing already.
- CompositionExpressions.nuspec : new package id 'arcadiog.CompositionExpressions',
  ships UWP + WinAppSdk lib folders.
- CompositionCollectionView.nuspec : declares a NuGet dependency on
  arcadiog.CompositionExpressions \\$ in both targetFramework
  groups.
- .github/workflows/release.yml : pack and push both nuspecs (the
  WinAppSdk CompositionExpressions assembly is already produced
  transitively via CCV.WinAppSdk's ProjectReference; the new UWP one
  is produced transitively via CCV.csproj's ProjectReference).

Author: arcadiogarcia

.github/workflows/release.yml

@@ -45,6 +45,7 @@ jobs:
       - name: Restore & Build UWP library
         shell: pwsh
         run: |
+          # CCV ProjectReferences CompositionExpressions; building CCV builds both.
           nuget restore src/CompositionCollectionView/CompositionCollectionView.csproj
           & "${{ steps.vs.outputs.MSBUILD }}" src/CompositionCollectionView/CompositionCollectionView.csproj `
             /t:Build /p:Configuration=Release /p:Platform=AnyCPU
@@ -87,6 +88,9 @@ jobs:
       - name: Pack NuGet
         shell: pwsh
         run: |
+          nuget pack CompositionExpressions.nuspec `
+            -Version ${{ steps.version.outputs.VERSION }} `
+            -OutputDirectory artifacts
           nuget pack CompositionCollectionView.nuspec `
             -Version ${{ steps.version.outputs.VERSION }} `
             -OutputDirectory artifacts

CompositionCollectionView.nuspec

@@ -11,9 +11,12 @@
     <tags>uwp winui3 winappsdk composition collection layout animation xaml</tags>
     <readme>docs\README.md</readme>
     <dependencies>
-      <group targetFramework="UAP10.0.19041" />
+      <group targetFramework="UAP10.0.19041">
+        <dependency id="arcadiog.CompositionExpressions" version="$version$" />
+      </group>
       <group targetFramework="net10.0-windows10.0.19041.0">
         <dependency id="Microsoft.WindowsAppSDK" version="1.7.250401001" exclude="Build,Analyzers" />
+        <dependency id="arcadiog.CompositionExpressions" version="$version$" />
       </group>
     </dependencies>
   </metadata>

CompositionExpressions.nuspec

@@ -0,0 +1,38 @@
+<?xml version="1.0" encoding="utf-8"?>
+<package xmlns="http://schemas.microsoft.com/packaging/2013/05/nuspec.xsd">
+  <metadata>
+    <id>arcadiog.CompositionExpressions</id>
+    <version>$version$</version>
+    <authors>Arcadio Garcia</authors>
+    <license type="expression">MIT</license>
+    <projectUrl>https://github.com/arcadiogarcia/CompositionCollectionView</projectUrl>
+    <repository type="git" url="https://github.com/arcadiogarcia/CompositionCollectionView" />
+    <description>A typed C# DSL for composing Windows.UI.Composition / Microsoft.UI.Composition expression animations, plus animatable-node wrappers and a property-set helper. Fork of the original CommunityToolkit ExpressionsFork; ships standalone for UWP and WinUI 3 / Windows App SDK so consumers can take the expression DSL without depending on the broader CompositionCollectionView control.</description>
+    <tags>uwp winui3 winappsdk composition expressions animation</tags>
+    <readme>docs\README.md</readme>
+    <dependencies>
+      <group targetFramework="UAP10.0.19041" />
+      <group targetFramework="net10.0-windows10.0.19041.0">
+        <dependency id="Microsoft.WindowsAppSDK" version="1.8.260317003" exclude="Build,Analyzers" />
+      </group>
+    </dependencies>
+  </metadata>
+  <files>
+    <!-- README -->
+    <file src="README.md" target="docs\README.md" />
+
+    <!-- UWP (uap10.0.19041) -->
+    <file src="src\CompositionExpressions\bin\Release\CompositionExpressions.dll" target="lib\uap10.0.19041" />
+    <file src="src\CompositionExpressions\bin\Release\CompositionExpressions.xml" target="lib\uap10.0.19041" />
+
+    <!-- WinUI 3 / Windows App SDK – compile reference (net10.0-windows10.0.19041.0) -->
+    <file src="src\CompositionExpressions.WinAppSdk\bin\x64\Release\net10.0-windows10.0.19041.0\CompositionExpressions.dll" target="lib\net10.0-windows10.0.19041.0" />
+    <file src="src\CompositionExpressions.WinAppSdk\bin\x64\Release\net10.0-windows10.0.19041.0\CompositionExpressions.xml" target="lib\net10.0-windows10.0.19041.0" />
+
+    <!-- WinUI 3 / Windows App SDK – x64 runtime -->
+    <file src="src\CompositionExpressions.WinAppSdk\bin\x64\Release\net10.0-windows10.0.19041.0\CompositionExpressions.dll" target="runtimes\win-x64\lib\net10.0-windows10.0.19041.0" />
+
+    <!-- WinUI 3 / Windows App SDK – ARM64 runtime -->
+    <file src="src\CompositionExpressions.WinAppSdk\bin\ARM64\Release\net10.0-windows10.0.19041.0\CompositionExpressions.dll" target="runtimes\win-arm64\lib\net10.0-windows10.0.19041.0" />
+  </files>
+</package>

src/CompositionCollectionView/CompositionCollectionView.csproj

@@ -125,18 +125,21 @@
     <RestoreProjectStyle>PackageReference</RestoreProjectStyle>
   </PropertyGroup>
   <ItemGroup>
-    <Compile Include="AnimatableNodes\AnimatableCompositionNodeSet.cs" />
-    <Compile Include="AnimatableNodes\AnimatableMatrix4x4CompositionNode.cs" />
-    <Compile Include="AnimatableNodes\AnimatableQuaternionCompositionNode.cs" />
-    <Compile Include="AnimatableNodes\AnimatableScalarCompositionNode.cs" />
-    <Compile Include="AnimatableNodes\AnimatableVector3CompositionNode.cs" />
-    <Compile Include="AnimationConstants.cs" />
+    <!--
+      Source files for the typed Composition expression DSL + the
+      animatable-node wrappers + BindableCompositionPropertySet +
+      AnimationConstants live in this same folder, but are now compiled
+      into a sibling project (..\CompositionExpressions) and referenced
+      via ProjectReference below. That keeps a single canonical copy of
+      those files (this folder) while letting them ship as a separate
+      assembly so non-CCV consumers (e.g. Combobulate) can take a
+      dependency on them without pulling in the collection-view types.
+    -->
     <Compile Include="Behaviors\InteractionTrackerGesture\GesturePreviewControl.cs" />
     <Compile Include="Behaviors\InteractionTrackerGesture\InteractionTrackerGesture.cs" />
     <Compile Include="Behaviors\ElementInteractionTrackerBehavior.cs" />
     <Compile Include="Behaviors\InteractionTrackerBehavior.cs" />
     <Compile Include="Behaviors\LayoutBehavior.cs" />
-    <Compile Include="BindableCompositionPropertySet.cs" />
     <Compile Include="CompositionCollectionLayout.Behaviors.cs" />
     <Compile Include="CompositionCollectionLayout.cs" />
     <Compile Include="CompositionCollectionLayout.Overridable.cs" />
@@ -146,45 +149,11 @@
     <Compile Include="DeconstructPolyfillExtensions.cs" />
     <Compile Include="ElementReference.cs" />
     <Compile Include="GlobalUsings.cs" />
-    <Compile Include="ExpressionsFork\Expressions\ExpressionNodes\BooleanNode.cs" />
-    <Compile Include="ExpressionsFork\Expressions\ExpressionNodes\ColorNode.cs" />
-    <Compile Include="ExpressionsFork\Expressions\ExpressionNodes\ExpressionNode.cs" />
-    <Compile Include="ExpressionsFork\Expressions\ExpressionNodes\ExpressionNodeType.cs" />
-    <Compile Include="ExpressionsFork\Expressions\ExpressionNodes\Matrix3x2Node.cs" />
-    <Compile Include="ExpressionsFork\Expressions\ExpressionNodes\Matrix4x4Node.cs" />
-    <Compile Include="ExpressionsFork\Expressions\ExpressionNodes\Matrix4x4Node.Subchannel.cs" />
-    <Compile Include="ExpressionsFork\Expressions\ExpressionNodes\QuaternionNode.cs" />
-    <Compile Include="ExpressionsFork\Expressions\ExpressionNodes\ScalarNode.cs" />
-    <Compile Include="ExpressionsFork\Expressions\ExpressionNodes\ValueKeywordKind.cs" />
-    <Compile Include="ExpressionsFork\Expressions\ExpressionNodes\Vector2Node.cs" />
-    <Compile Include="ExpressionsFork\Expressions\ExpressionNodes\Vector3Node.cs" />
-    <Compile Include="ExpressionsFork\Expressions\ExpressionNodes\Vector4Node.cs" />
-    <Compile Include="ExpressionsFork\Expressions\ExpressionValues\ExpressionValues.Constant.cs" />
-    <Compile Include="ExpressionsFork\Expressions\ExpressionValues\ExpressionValues.CurrentValue.cs" />
-    <Compile Include="ExpressionsFork\Expressions\ExpressionValues\ExpressionValues.Reference.cs" />
-    <Compile Include="ExpressionsFork\Expressions\ExpressionValues\ExpressionValues.StartingValue.cs" />
-    <Compile Include="ExpressionsFork\Expressions\ExpressionValues\ExpressionValues.Target.cs" />
-    <Compile Include="ExpressionsFork\Expressions\ReferenceNodes\AmbientLightReferenceNode.cs" />
-    <Compile Include="ExpressionsFork\Expressions\ReferenceNodes\ColorBrushReferenceNode.cs" />
-    <Compile Include="ExpressionsFork\Expressions\ReferenceNodes\DistantLightReferenceNode.cs" />
-    <Compile Include="ExpressionsFork\Expressions\ReferenceNodes\DropShadowReferenceNode.cs" />
-    <Compile Include="ExpressionsFork\Expressions\ReferenceNodes\InsetClipReferenceNode.cs" />
-    <Compile Include="ExpressionsFork\Expressions\ReferenceNodes\InteractionTrackerReferenceNode.cs" />
-    <Compile Include="ExpressionsFork\Expressions\ReferenceNodes\ManipulationPropertySetReferenceNode.cs" />
-    <Compile Include="ExpressionsFork\Expressions\ReferenceNodes\NineGridBrushReferenceNode.cs" />
-    <Compile Include="ExpressionsFork\Expressions\ReferenceNodes\PointerPositionPropertySetReferenceNode.cs" />
-    <Compile Include="ExpressionsFork\Expressions\ReferenceNodes\PointLightReferenceNode.cs" />
-    <Compile Include="ExpressionsFork\Expressions\ReferenceNodes\PropertySetReferenceNode.cs" />
-    <Compile Include="ExpressionsFork\Expressions\ReferenceNodes\ReferenceNode.cs" />
-    <Compile Include="ExpressionsFork\Expressions\ReferenceNodes\SpotLightReferenceNode.cs" />
-    <Compile Include="ExpressionsFork\Expressions\ReferenceNodes\SurfaceBrushReferenceNode.cs" />
-    <Compile Include="ExpressionsFork\Expressions\ReferenceNodes\VisualReferenceNode.cs" />
-    <Compile Include="ExpressionsFork\Expressions\CompositionExtensions.cs" />
-    <Compile Include="ExpressionsFork\Expressions\ExpressionFunctions.cs" />
-    <Compile Include="ExpressionsFork\Expressions\FloatExtensions.cs" />
-    <Compile Include="ExpressionsFork\Expressions\OperationType.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
   </ItemGroup>
+  <ItemGroup>
+    <ProjectReference Include="..\CompositionExpressions\CompositionExpressions.csproj" />
+  </ItemGroup>
   <ItemGroup>
     <Page Include="Themes\Generic.xaml">
       <Generator>MSBuild:Compile</Generator>