Initial commit: .NET MAUI Linux Platform

Complete Linux platform implementation for .NET MAUI with: - 35+ Skia-rendered controls (Button, Label, Entry, CarouselView, etc.) - Platform services (Clipboard, FilePicker, Notifications, DragDrop, etc.) - Accessibility support (AT-SPI2, High Contrast) - HiDPI and Input Method support - 216 unit tests - CI/CD workflows - Project templates - Documentation 🤖 Generated with Claude Code
2025-12-19 09:30:16 +00:00
commit d87124fef2
138 changed files with 32939 additions and 0 deletions
--- a/Handlers/BorderHandler.cs
+++ b/Handlers/BorderHandler.cs
@@ -0,0 +1,104 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+
+using Microsoft.Maui.Handlers;
+using Microsoft.Maui.Graphics;
+using Microsoft.Maui.Controls;
+using Microsoft.Maui.Platform;
+using SkiaSharp;
+
+namespace Microsoft.Maui.Platform.Linux.Handlers;
+
+/// <summary>
+/// Handler for Border on Linux using Skia rendering.
+/// </summary>
+public partial class BorderHandler : ViewHandler<IBorderView, SkiaBorder>
+{
+    public static IPropertyMapper<IBorderView, BorderHandler> Mapper =
+        new PropertyMapper<IBorderView, BorderHandler>(ViewHandler.ViewMapper)
+        {
+            [nameof(IBorderView.Content)] = MapContent,
+            [nameof(IBorderStroke.Stroke)] = MapStroke,
+            [nameof(IBorderStroke.StrokeThickness)] = MapStrokeThickness,
+            [nameof(IView.Background)] = MapBackground,
+            [nameof(IPadding.Padding)] = MapPadding,
+        };
+
+    public static CommandMapper<IBorderView, BorderHandler> CommandMapper =
+        new(ViewHandler.ViewCommandMapper)
+        {
+        };
+
+    public BorderHandler() : base(Mapper, CommandMapper)
+    {
+    }
+
+    public BorderHandler(IPropertyMapper? mapper, CommandMapper? commandMapper = null)
+        : base(mapper ?? Mapper, commandMapper ?? CommandMapper)
+    {
+    }
+
+    protected override SkiaBorder CreatePlatformView()
+    {
+        return new SkiaBorder();
+    }
+
+    protected override void ConnectHandler(SkiaBorder platformView)
+    {
+        base.ConnectHandler(platformView);
+    }
+
+    protected override void DisconnectHandler(SkiaBorder platformView)
+    {
+        base.DisconnectHandler(platformView);
+    }
+
+    public static void MapContent(BorderHandler handler, IBorderView border)
+    {
+        if (handler.PlatformView is null) return;
+
+        handler.PlatformView.ClearChildren();
+
+        if (border.PresentedContent?.Handler?.PlatformView is SkiaView skiaContent)
+        {
+            handler.PlatformView.AddChild(skiaContent);
+        }
+    }
+
+    public static void MapStroke(BorderHandler handler, IBorderView border)
+    {
+        if (handler.PlatformView is null) return;
+
+        if (border.Stroke is SolidPaint solidPaint && solidPaint.Color is not null)
+        {
+            handler.PlatformView.Stroke = solidPaint.Color.ToSKColor();
+        }
+    }
+
+    public static void MapStrokeThickness(BorderHandler handler, IBorderView border)
+    {
+        if (handler.PlatformView is null) return;
+        handler.PlatformView.StrokeThickness = (float)border.StrokeThickness;
+    }
+
+    public static void MapBackground(BorderHandler handler, IBorderView border)
+    {
+        if (handler.PlatformView is null) return;
+
+        if (border.Background is SolidPaint solidPaint && solidPaint.Color is not null)
+        {
+            handler.PlatformView.BackgroundColor = solidPaint.Color.ToSKColor();
+        }
+    }
+
+    public static void MapPadding(BorderHandler handler, IBorderView border)
+    {
+        if (handler.PlatformView is null) return;
+
+        var padding = border.Padding;
+        handler.PlatformView.PaddingLeft = (float)padding.Left;
+        handler.PlatformView.PaddingTop = (float)padding.Top;
+        handler.PlatformView.PaddingRight = (float)padding.Right;
+        handler.PlatformView.PaddingBottom = (float)padding.Bottom;
+    }
+}