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/ButtonHandler.Linux.cs
+++ b/Handlers/ButtonHandler.Linux.cs
@@ -0,0 +1,162 @@
+// 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 SkiaSharp;
+
+namespace Microsoft.Maui.Platform;
+
+/// <summary>
+/// Linux handler for Button control.
+/// </summary>
+public partial class ButtonHandler : ViewHandler<IButton, SkiaButton>
+{
+    /// <summary>
+    /// Maps the property mapper for the handler.
+    /// </summary>
+    public static IPropertyMapper<IButton, ButtonHandler> Mapper = new PropertyMapper<IButton, ButtonHandler>(ViewHandler.ViewMapper)
+    {
+        [nameof(IButton.Text)] = MapText,
+        [nameof(IButton.TextColor)] = MapTextColor,
+        [nameof(IButton.Background)] = MapBackground,
+        [nameof(IButton.Font)] = MapFont,
+        [nameof(IButton.Padding)] = MapPadding,
+        [nameof(IButton.CornerRadius)] = MapCornerRadius,
+        [nameof(IButton.BorderColor)] = MapBorderColor,
+        [nameof(IButton.BorderWidth)] = MapBorderWidth,
+        [nameof(IView.IsEnabled)] = MapIsEnabled,
+    };
+
+    /// <summary>
+    /// Maps the command mapper for the handler.
+    /// </summary>
+    public static CommandMapper<IButton, ButtonHandler> CommandMapper = new(ViewHandler.ViewCommandMapper)
+    {
+    };
+
+    public ButtonHandler() : base(Mapper, CommandMapper)
+    {
+    }
+
+    public ButtonHandler(IPropertyMapper? mapper)
+        : base(mapper ?? Mapper, CommandMapper)
+    {
+    }
+
+    public ButtonHandler(IPropertyMapper? mapper, CommandMapper? commandMapper)
+        : base(mapper ?? Mapper, commandMapper ?? CommandMapper)
+    {
+    }
+
+    protected override SkiaButton CreatePlatformView()
+    {
+        var button = new SkiaButton();
+        return button;
+    }
+
+    protected override void ConnectHandler(SkiaButton platformView)
+    {
+        base.ConnectHandler(platformView);
+        platformView.Clicked += OnClicked;
+        platformView.Pressed += OnPressed;
+        platformView.Released += OnReleased;
+    }
+
+    protected override void DisconnectHandler(SkiaButton platformView)
+    {
+        platformView.Clicked -= OnClicked;
+        platformView.Pressed -= OnPressed;
+        platformView.Released -= OnReleased;
+        base.DisconnectHandler(platformView);
+    }
+
+    private void OnClicked(object? sender, EventArgs e)
+    {
+        VirtualView?.Clicked();
+    }
+
+    private void OnPressed(object? sender, EventArgs e)
+    {
+        VirtualView?.Pressed();
+    }
+
+    private void OnReleased(object? sender, EventArgs e)
+    {
+        VirtualView?.Released();
+    }
+
+    public static void MapText(ButtonHandler handler, IButton button)
+    {
+        handler.PlatformView.Text = button.Text ?? "";
+        handler.PlatformView.Invalidate();
+    }
+
+    public static void MapTextColor(ButtonHandler handler, IButton button)
+    {
+        if (button.TextColor != null)
+        {
+            handler.PlatformView.TextColor = button.TextColor.ToSKColor();
+        }
+        handler.PlatformView.Invalidate();
+    }
+
+    public static void MapBackground(ButtonHandler handler, IButton button)
+    {
+        var background = button.Background;
+        if (background is SolidColorBrush solidBrush && solidBrush.Color != null)
+        {
+            handler.PlatformView.BackgroundColor = solidBrush.Color.ToSKColor();
+        }
+        handler.PlatformView.Invalidate();
+    }
+
+    public static void MapFont(ButtonHandler handler, IButton button)
+    {
+        var font = button.Font;
+        if (font.Family != null)
+        {
+            handler.PlatformView.FontFamily = font.Family;
+        }
+        handler.PlatformView.FontSize = (float)font.Size;
+        handler.PlatformView.IsBold = font.Weight == FontWeight.Bold;
+        handler.PlatformView.Invalidate();
+    }
+
+    public static void MapPadding(ButtonHandler handler, IButton button)
+    {
+        var padding = button.Padding;
+        handler.PlatformView.Padding = new SKRect(
+            (float)padding.Left,
+            (float)padding.Top,
+            (float)padding.Right,
+            (float)padding.Bottom);
+        handler.PlatformView.Invalidate();
+    }
+
+    public static void MapCornerRadius(ButtonHandler handler, IButton button)
+    {
+        handler.PlatformView.CornerRadius = button.CornerRadius;
+        handler.PlatformView.Invalidate();
+    }
+
+    public static void MapBorderColor(ButtonHandler handler, IButton button)
+    {
+        if (button.StrokeColor != null)
+        {
+            handler.PlatformView.BorderColor = button.StrokeColor.ToSKColor();
+        }
+        handler.PlatformView.Invalidate();
+    }
+
+    public static void MapBorderWidth(ButtonHandler handler, IButton button)
+    {
+        handler.PlatformView.BorderWidth = (float)button.StrokeThickness;
+        handler.PlatformView.Invalidate();
+    }
+
+    public static void MapIsEnabled(ButtonHandler handler, IButton button)
+    {
+        handler.PlatformView.IsEnabled = button.IsEnabled;
+        handler.PlatformView.Invalidate();
+    }
+}