Merge pull request #715 from irihitech/ip_ime

Try to fix android ime crash

Ursa.sln

@@ -42,8 +42,8 @@ EndProject
 Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "GitHub Action", "GitHub Action", "{66123AC1-7C8C-4AA0-BBDB-5CC3E647A741}"
 	ProjectSection(SolutionItems) = preProject
 		.github\workflows\deploy.yml = .github\workflows\deploy.yml
-		.github\workflows\pack.yml = .github\workflows\pack.yml
 		.github\workflows\pack-nightly.yml = .github\workflows\pack-nightly.yml
+		.github\workflows\pack.yml = .github\workflows\pack.yml
 		.github\workflows\publish.yml = .github\workflows\publish.yml
 		.github\workflows\release-tag.yml = .github\workflows\release-tag.yml
 		.github\workflows\test.yml = .github\workflows\test.yml
@@ -69,6 +69,7 @@ Global
 		{53B5F277-3AEB-4661-ACAE-15CFFF2ED800}.Release|Any CPU.Build.0 = Release|Any CPU
 		{3FC76CD9-CE5D-4804-A8D6-4E292EB296AA}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
 		{3FC76CD9-CE5D-4804-A8D6-4E292EB296AA}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{3FC76CD9-CE5D-4804-A8D6-4E292EB296AA}.Debug|Any CPU.Deploy.0 = Debug|Any CPU
 		{3FC76CD9-CE5D-4804-A8D6-4E292EB296AA}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{3FC76CD9-CE5D-4804-A8D6-4E292EB296AA}.Release|Any CPU.Build.0 = Release|Any CPU
 		{B6BAB821-A9FE-44F3-B9CD-06E27FDB63F6}.Debug|Any CPU.ActiveCfg = Debug|Any CPU

src/Package.props

@@ -1,7 +1,7 @@
 <Project>
     <PropertyGroup>
         <Version>1.11.1</Version>
-        <AvaloniaVersion>11.1.1</AvaloniaVersion>
+        <AvaloniaVersion>11.1.3</AvaloniaVersion>
         <Authors>IRIHI Technology Co., Ltd.</Authors>
         <RepositoryUrl>https://github.com/irihitech/Ursa.Avalonia</RepositoryUrl>
         <PackageLicenseExpression>MIT</PackageLicenseExpression>

src/Ursa/Controls/IPv4Box/IPv4Box.cs

@@ -283,11 +283,13 @@ public class IPv4Box: TemplatedControl
             {
                 if (e.ClickCount == 1)
                 {
+                    _imClient.ShowInputPanel();
 					_imClient.SetPresenter(presenter);
 					presenter.ShowCaret();
                     _currentActivePresenter = presenter;
                     var caretPosition = position.WithX(position.X - presenter.Bounds.X);
                     presenter.MoveCaretToPoint(caretPosition);
+                    
                 }
                 else if (e.ClickCount == 2)
                 {

src/Ursa/Controls/IPv4Box/IPv4BoxInputMethodClient.cs

@@ -1,6 +1,9 @@
 using Avalonia;
 using Avalonia.Controls.Presenters;
 using Avalonia.Input.TextInput;
+using Avalonia.Media.TextFormatting;
+using Avalonia.VisualTree;
+using System.Text;
 
 namespace Ursa.Controls;
 
@@ -11,10 +14,95 @@ public class IPv4BoxInputMethodClient: TextInputMethodClient
     public override bool SupportsPreedit => false;
     public override bool SupportsSurroundingText => true;
 
-    public override string SurroundingText { get; } = null!;
+    public override string SurroundingText
+    {
+		get
+		{
+			if (_presenter is null)
+			{
+				return "";
+			}
+
+			var lineIndex = _presenter.TextLayout.GetLineIndexFromCharacterIndex(_presenter.CaretIndex, false);
+
+			var textLine = _presenter.TextLayout.TextLines[lineIndex];
+
+			var lineText = GetTextLineText(textLine);
+
+			return lineText;
+		}
+	}
+
+	private static string GetTextLineText(TextLine textLine)
+	{
+		if (textLine.Length == 0)
+		{
+			return string.Empty;
+		}
+
+		var builder = new StringBuilder();
+
+		foreach (var run in textLine.TextRuns)
+		{
+			if (run.Length > 0)
+			{
+#if NET6_0_OR_GREATER
+				builder.Append(run.Text.Span);
+#else
+                    builder.Append(run.Text.Span.ToArray());
+#endif
+			}
+		}
+
+		var lineText = builder.ToString();
+
+		return lineText;
+	}
 
 	public override Rect CursorRectangle { get; } = new();
-    public override TextSelection Selection { get; set; }
+	public override TextSelection Selection
+	{
+		get
+		{
+			if (_presenter is null)
+			{
+				return default;
+			}
+
+			var lineIndex = _presenter.TextLayout.GetLineIndexFromCharacterIndex(_presenter.CaretIndex, false);
+
+			var textLine = _presenter.TextLayout.TextLines[lineIndex];
+
+			var lineStart = textLine.FirstTextSourceIndex;
+
+			var selectionStart = Math.Max(0, _presenter.SelectionStart - lineStart);
+
+			var selectionEnd = Math.Max(0, _presenter.SelectionEnd - lineStart);
+
+			return new TextSelection(selectionStart, selectionEnd);
+		}
+		set
+		{
+			if (_presenter is null)
+			{
+				return;
+			}
+
+			var lineIndex = _presenter.TextLayout.GetLineIndexFromCharacterIndex(_presenter.CaretIndex, false);
+
+			var textLine = _presenter.TextLayout.TextLines[lineIndex];
+
+			var lineStart = textLine.FirstTextSourceIndex;
+
+			var selectionStart = lineStart + value.Start;
+			var selectionEnd = lineStart + value.End;
+
+			_presenter.SelectionStart = selectionStart;
+			_presenter.SelectionEnd = selectionEnd;
+
+			RaiseSelectionChanged();
+		}
+	}
 	public void SetPresenter(TextPresenter? presenter)
     {
         _presenter = presenter;