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/Services/ClipboardService.cs
+++ b/Services/ClipboardService.cs
@@ -0,0 +1,206 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+
+using System.Runtime.InteropServices;
+using System.Diagnostics;
+using Microsoft.Maui.ApplicationModel.DataTransfer;
+
+namespace Microsoft.Maui.Platform.Linux.Services;
+
+/// <summary>
+/// Linux clipboard implementation using xclip/xsel command line tools.
+/// </summary>
+public class ClipboardService : IClipboard
+{
+    private string? _lastSetText;
+
+    public bool HasText
+    {
+        get
+        {
+            try
+            {
+                var result = GetTextAsync().GetAwaiter().GetResult();
+                return !string.IsNullOrEmpty(result);
+            }
+            catch
+            {
+                return false;
+            }
+        }
+    }
+
+    public event EventHandler<EventArgs>? ClipboardContentChanged;
+
+    public async Task<string?> GetTextAsync()
+    {
+        // Try xclip first
+        var result = await TryGetWithXclip();
+        if (result != null) return result;
+
+        // Try xsel as fallback
+        return await TryGetWithXsel();
+    }
+
+    public async Task SetTextAsync(string? text)
+    {
+        _lastSetText = text;
+
+        if (string.IsNullOrEmpty(text))
+        {
+            await ClearClipboard();
+            return;
+        }
+
+        // Try xclip first
+        var success = await TrySetWithXclip(text);
+        if (!success)
+        {
+            // Try xsel as fallback
+            await TrySetWithXsel(text);
+        }
+
+        ClipboardContentChanged?.Invoke(this, EventArgs.Empty);
+    }
+
+    private async Task<string?> TryGetWithXclip()
+    {
+        try
+        {
+            var startInfo = new ProcessStartInfo
+            {
+                FileName = "xclip",
+                Arguments = "-selection clipboard -o",
+                UseShellExecute = false,
+                RedirectStandardOutput = true,
+                RedirectStandardError = true,
+                CreateNoWindow = true
+            };
+
+            using var process = Process.Start(startInfo);
+            if (process == null) return null;
+
+            var output = await process.StandardOutput.ReadToEndAsync();
+            await process.WaitForExitAsync();
+
+            return process.ExitCode == 0 ? output : null;
+        }
+        catch
+        {
+            return null;
+        }
+    }
+
+    private async Task<string?> TryGetWithXsel()
+    {
+        try
+        {
+            var startInfo = new ProcessStartInfo
+            {
+                FileName = "xsel",
+                Arguments = "--clipboard --output",
+                UseShellExecute = false,
+                RedirectStandardOutput = true,
+                RedirectStandardError = true,
+                CreateNoWindow = true
+            };
+
+            using var process = Process.Start(startInfo);
+            if (process == null) return null;
+
+            var output = await process.StandardOutput.ReadToEndAsync();
+            await process.WaitForExitAsync();
+
+            return process.ExitCode == 0 ? output : null;
+        }
+        catch
+        {
+            return null;
+        }
+    }
+
+    private async Task<bool> TrySetWithXclip(string text)
+    {
+        try
+        {
+            var startInfo = new ProcessStartInfo
+            {
+                FileName = "xclip",
+                Arguments = "-selection clipboard",
+                UseShellExecute = false,
+                RedirectStandardInput = true,
+                RedirectStandardError = true,
+                CreateNoWindow = true
+            };
+
+            using var process = Process.Start(startInfo);
+            if (process == null) return false;
+
+            await process.StandardInput.WriteAsync(text);
+            process.StandardInput.Close();
+
+            await process.WaitForExitAsync();
+            return process.ExitCode == 0;
+        }
+        catch
+        {
+            return false;
+        }
+    }
+
+    private async Task<bool> TrySetWithXsel(string text)
+    {
+        try
+        {
+            var startInfo = new ProcessStartInfo
+            {
+                FileName = "xsel",
+                Arguments = "--clipboard --input",
+                UseShellExecute = false,
+                RedirectStandardInput = true,
+                RedirectStandardError = true,
+                CreateNoWindow = true
+            };
+
+            using var process = Process.Start(startInfo);
+            if (process == null) return false;
+
+            await process.StandardInput.WriteAsync(text);
+            process.StandardInput.Close();
+
+            await process.WaitForExitAsync();
+            return process.ExitCode == 0;
+        }
+        catch
+        {
+            return false;
+        }
+    }
+
+    private async Task ClearClipboard()
+    {
+        try
+        {
+            // Try xclip first
+            var startInfo = new ProcessStartInfo
+            {
+                FileName = "xclip",
+                Arguments = "-selection clipboard",
+                UseShellExecute = false,
+                RedirectStandardInput = true,
+                CreateNoWindow = true
+            };
+
+            using var process = Process.Start(startInfo);
+            if (process != null)
+            {
+                process.StandardInput.Close();
+                await process.WaitForExitAsync();
+            }
+        }
+        catch
+        {
+            // Ignore errors when clearing
+        }
+    }
+}