Merge pull request #3 from InitialForce/cherry-pick-batch-h3xds1nz-2026-05-01

Batch cherry-pick: 9 h3xds1nz upstream PRs (clean apply onto if/main)

Author: oysteinkrog

src/Microsoft.DotNet.Wpf/src/PresentationBuildTasks/PresentationBuildTasks.csproj

@@ -73,9 +73,6 @@
     <Compile Include="$(WpfSharedDir)\MS\Internal\ReflectionUtils.cs">
       <Link>Shared\MS\Internal\ReflectionUtils.cs</Link>
     </Compile>
-    <Compile Include="$(WpfSharedDir)\MS\Internal\SecurityHelper.cs">
-      <Link>Shared\MS\Internal\SecurityHelper.cs</Link>
-    </Compile>
     <Compile Include="$(WpfSharedDir)\MS\Internal\TokenizerHelper.cs">
       <Link>Shared\MS\Internal\TokenizerHelper.cs</Link>
     </Compile>

src/Microsoft.DotNet.Wpf/src/PresentationCore/PresentationCore.csproj

@@ -714,6 +714,7 @@
     <Compile Include="System\Windows\Media\CultureSpecificStringDictionary.cs" />
     <Compile Include="System\Windows\Media\DashStyle.cs" />
     <Compile Include="System\Windows\Media\DashStyles.cs" />
+	<Compile Include="System\Windows\Media\DoubleCollection.cs" />
     <Compile Include="System\Windows\Media\Drawing.cs" />
     <Compile Include="System\Windows\Media\DrawingBrush.cs" />
     <Compile Include="System\Windows\Media\DrawingCollection.cs" />

src/Microsoft.DotNet.Wpf/src/PresentationCore/System/Windows/Input/Command/MouseActionConverter.cs

@@ -7,12 +7,12 @@
 namespace System.Windows.Input
 {
     /// <summary>
-    /// Converter class for converting between a <see langword="string"/> and <see cref="MouseAction"/>.
+    /// Converter class for converting between a <see cref="string"/> and <see cref="MouseAction"/>.
     /// </summary>
     public class MouseActionConverter : TypeConverter
     {
         ///<summary>
-        /// Used to check whether we can convert a <see langword="string"/> into a <see cref="MouseAction"/>.
+        /// Used to check whether we can convert a <see cref="string"/> into a <see cref="MouseAction"/>.
         ///</summary>
         ///<param name="context">ITypeDescriptorContext</param>
         ///<param name="sourceType">type to convert from</param>
@@ -24,32 +24,32 @@ public override bool CanConvertFrom(ITypeDescriptorContext context, Type sourceT
         }
 
         /// <summary>
-        /// Used to check whether we can convert specified value to <see langword="string"/>.
+        /// Used to check whether we can convert specified value to <see cref="string"/>.
         /// </summary>
         /// <param name="context">ITypeDescriptorContext</param>
         /// <param name="destinationType">Type to convert to</param>
-        /// <returns><see langword="true"/> if conversion to <see langword="string"/> is possible, <see langword="false"/> otherwise.</returns>
+        /// <returns><see langword="true"/> if conversion to <see cref="string"/> is possible, <see langword="false"/> otherwise.</returns>
         public override bool CanConvertTo(ITypeDescriptorContext context, Type destinationType)
         {
             // We can convert to an InstanceDescriptor or to a string
             if (destinationType != typeof(string))
                 return false;
 
             // When invoked by the serialization engine we can convert to string only for known type
-            if (context is null || context.Instance is null)
+            if (context?.Instance is not MouseAction mouseAction)
                 return false;
 
             // Make sure the value falls within defined set
-            return IsDefinedMouseAction((MouseAction)context.Instance);
+            return IsDefinedMouseAction(mouseAction);
         }
 
         /// <summary>
-        /// Converts <paramref name="source"/> of <see langword="string"/> type to its <see cref="MouseAction"/> represensation.
+        /// Converts <paramref name="source"/> of <see cref="string"/> type to its <see cref="MouseAction"/> representation.
         /// </summary>
         /// <param name="context">Parser Context</param>
         /// <param name="culture">Culture Info</param>
         /// <param name="source">MouseAction String</param>
-        /// <returns>A <see cref="MouseAction"/> representing the <see langword="string"/> specified by <paramref name="source"/>.</returns>
+        /// <returns>A <see cref="MouseAction"/> representing the <see cref="string"/> specified by <paramref name="source"/>.</returns>
         public override object ConvertFrom(ITypeDescriptorContext context, CultureInfo culture, object source)
         {
             if (source is not string mouseAction)
@@ -72,21 +72,20 @@ _ when mouseActionToken.Equals("MiddleDoubleClick", StringComparison.OrdinalIgno
         }
 
         /// <summary>
-        /// Converts a <paramref name="value"/> of <see cref="MouseAction"/> to its <see langword="string"/> represensation.
+        /// Converts a <paramref name="value"/> of <see cref="MouseAction"/> to its <see cref="string"/> representation.
         /// </summary>
         /// <param name="context">Serialization Context</param>
         /// <param name="culture">Culture Info</param>
         /// <param name="value">MouseAction value </param>
         /// <param name="destinationType">Type to Convert</param>
-        /// <returns>A <see langword="string"/> representing the <see cref="MouseAction"/> specified by <paramref name="value"/>.</returns>
+        /// <returns>A <see cref="string"/> representing the <see cref="MouseAction"/> specified by <paramref name="value"/>.</returns>
         public override object ConvertTo(ITypeDescriptorContext context, CultureInfo culture, object value, Type destinationType)
         {
             ArgumentNullException.ThrowIfNull(destinationType);
 
-            if (value is null || destinationType != typeof(string))
+            if (value is not MouseAction mouseAction || destinationType != typeof(string))
                 throw GetConvertToException(value, destinationType);
 
-            MouseAction mouseAction = (MouseAction)value;
             return mouseAction switch
             {
                 MouseAction.None => string.Empty,

src/Microsoft.DotNet.Wpf/src/PresentationCore/System/Windows/Media/DoubleCollection.cs

@@ -0,0 +1,23 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+
+using MS.Utility;
+
+namespace System.Windows.Media;
+
+public sealed partial class DoubleCollection
+{
+    /// <summary>
+    /// Initializes a new instance using a <paramref name="values"/>. Elements are copied.
+    /// </summary>
+    /// <param name="values"></param>
+    internal DoubleCollection(params ReadOnlySpan<double> values)
+    {
+        _collection = new FrugalStructList<double>(values.Length);
+
+        foreach (double item in values)
+        {
+            _collection.Add(item);
+        }
+    }
+}

src/Microsoft.DotNet.Wpf/src/PresentationCore/System/Windows/Media/NativeMethodsMilCoreApi.cs

@@ -271,13 +271,9 @@ private static CultureInfo GetDocumentCultureInfo(ITextContainer textContainer)
         /// <param name="findToolBar">FindToolBar instance.</param>
         internal static void ShowFindUnsuccessfulMessage(FindToolBar findToolBar)
         {
-            string messageString;
-
             // No, we did not find anything. Alert the user.
-            messageString = findToolBar.SearchUp ?
-                        SR.DocumentViewerSearchUpCompleteLabel :
-                        SR.DocumentViewerSearchDownCompleteLabel;
-            messageString = String.Format(System.Globalization.CultureInfo.CurrentCulture, messageString, findToolBar.SearchText);
+            string messageString = findToolBar.SearchUp ? SR.DocumentViewerSearchUpCompleteLabel : SR.DocumentViewerSearchDownCompleteLabel;
+            messageString = string.Format(CultureInfo.CurrentCulture, messageString, findToolBar.SearchText);
 
             HwndSource hwndSource = PresentationSource.CriticalFromVisual(findToolBar) as HwndSource;
             IntPtr hwnd = (hwndSource != null) ? hwndSource.Handle : IntPtr.Zero;

src/Microsoft.DotNet.Wpf/src/PresentationFramework/MS/Internal/documents/DocumentViewerHelper.cs

@@ -8464,9 +8464,13 @@ private object InvalidateCellsPanelHorizontalOffset(object args)
             IProvideDataGridColumn cell = GetAnyCellOrColumnHeader();
             if (cell != null)
             {
-                CellsPanelHorizontalOffset = DataGridHelper.GetParentCellsPanelHorizontalOffset(cell);
+                // Due to layout rounding, computation of the offset may return a negative value while computing the difference between controls,
+                // however since this offset is used also for Button's Width servicing the DataGrid.SelectAllCommand in all standard styles,
+                // we cannot accept this. Even if we could, the DataGrid[CellsPanel] layout logic depends on this offset being 0 or greater.
+                // See https://github.com/dotnet/wpf/pull/9983 for more information regarding this.
+                CellsPanelHorizontalOffset = Math.Max(0d, DataGridHelper.GetParentCellsPanelHorizontalOffset(cell));
             }
-            else if (!Double.IsNaN(RowHeaderWidth))
+            else if (!double.IsNaN(RowHeaderWidth))
             {
                 CellsPanelHorizontalOffset = RowHeaderWidth;
             }

src/Microsoft.DotNet.Wpf/src/PresentationFramework/System/Windows/Controls/DataGrid.cs

@@ -856,7 +856,7 @@ private bool HandleIsMouseOverChanged()
                     (_headerGripper == null || !_headerGripper.IsMouseOver))
                 {
                     // Hovering over the button will click in the OnHover click mode
-                    SetValue(IsPressedPropertyKey, BooleanBoxes.Box(true));
+                    SetValue(IsPressedPropertyKey, BooleanBoxes.TrueBox);
                     OnClick();
                 }
                 else

src/Microsoft.DotNet.Wpf/src/PresentationFramework/System/Windows/Controls/GridViewColumnHeader.cs

@@ -85,23 +85,17 @@ public event HwndSourceHook MessageHook
         {
             add
             {
-
-                if(_hooks == null)
-                {
-                    _hooks = new ArrayList(8);
-                }
+                _hooks ??= new List<HwndSourceHook>(8);
 
                 _hooks.Add(value);
             }
-
             remove
             {
-
-                if(_hooks != null)
+                if (_hooks is not null)
                 {
                     _hooks.Remove(value);
 
-                    if(_hooks.Count == 0)
+                    if (_hooks.Count == 0)
                     {
                         _hooks = null;
                     }
@@ -1101,22 +1095,19 @@ private object AsyncDestroyWindow(object arg)
 
         private IntPtr SubclassWndProc(IntPtr hwnd, int msg, IntPtr wParam, IntPtr lParam, ref bool handled)
         {
-            IntPtr result = IntPtr.Zero ;
+            // Call the virtual first
+            IntPtr result = WndProc(hwnd, msg, wParam, lParam, ref handled);
 
-            // Call the virtual first.
-            result = WndProc(hwnd, msg, wParam, lParam, ref handled);
+            if (_hooks is null || handled)
+                return result;
 
-            // Call the handlers for the MessageHook event.
-            if(!handled && _hooks != null)
+            // Call the handlers for the MessageHook event
+            for (int i = 0, nCount = _hooks.Count; i < nCount; i++)
             {
-                for(int i = 0, nCount = _hooks.Count; i < nCount; i++)
-                {
-                    result = ((HwndSourceHook)_hooks[i])(hwnd, msg, wParam, lParam, ref handled);
-                    if(handled)
-                    {
-                        break;
-                    }
-                }
+                result = _hooks[i].Invoke(hwnd, msg, wParam, lParam, ref handled);
+
+                if (handled)
+                    break;
             }
 
             return result;
@@ -1132,7 +1123,7 @@ private IntPtr SubclassWndProc(IntPtr hwnd, int msg, IntPtr wParam, IntPtr lPara
 
         private HandleRef _hwnd;
 
-        private ArrayList _hooks;
+        private List<HwndSourceHook> _hooks;
         private Size _desiredSize;
 
         /// <summary>

src/Microsoft.DotNet.Wpf/src/PresentationFramework/System/Windows/Interop/HwndHost.cs

@@ -14,9 +14,7 @@
 using System.Linq;
 using System.Reflection;
 using MS.Utility;
-#if PBTCOMPILER
-using MS.Internal.PresentationBuildTasks;
-#else
+#if !PBTCOMPILER
 using MS.Internal.PresentationFramework;
 using MS.Internal.Utility;  // AssemblyCacheEnum
 #endif