From 685996b56bfe3ddff4b7956ba0e8cbc3eede55a6 Mon Sep 17 00:00:00 2001
From: Dong Bin <popmessiah@hotmail.com>
Date: Mon, 13 Jan 2025 14:02:48 +0800
Subject: [PATCH] feat: try to add ime client.

---
 src/Ursa/Controls/{ => IPv4Box}/IPv4Box.cs    |  7 ++-
 .../IPv4Box/IPv4BoxInputMethodClient.cs       | 44 +++++++++++++++++++
 2 files changed, 50 insertions(+), 1 deletion(-)
 rename src/Ursa/Controls/{ => IPv4Box}/IPv4Box.cs (98%)
 create mode 100644 src/Ursa/Controls/IPv4Box/IPv4BoxInputMethodClient.cs

diff --git a/src/Ursa/Controls/IPv4Box.cs b/src/Ursa/Controls/IPv4Box/IPv4Box.cs
similarity index 98%
rename from src/Ursa/Controls/IPv4Box.cs
rename to src/Ursa/Controls/IPv4Box/IPv4Box.cs
index cb1d2e857..4a41b704a 100644
--- a/src/Ursa/Controls/IPv4Box.cs
+++ b/src/Ursa/Controls/IPv4Box/IPv4Box.cs
@@ -7,6 +7,7 @@
 using Avalonia.Data;
 using Avalonia.Input;
 using Avalonia.Input.Platform;
+using Avalonia.Input.TextInput;
 using Avalonia.Interactivity;
 using Avalonia.Media;
 using Avalonia.Media.TextFormatting;
@@ -96,11 +97,15 @@ public IPv4BoxInputMode InputMode
         get => GetValue(InputModeProperty);
         set => SetValue(InputModeProperty, value);
     }
-
+    private readonly IPv4BoxInputMethodClient _imClient = new IPv4BoxInputMethodClient();
     static IPv4Box()
     {
         ShowLeadingZeroProperty.Changed.AddClassHandler<IPv4Box>((o, e) => o.OnFormatChange(e));
         IPAddressProperty.Changed.AddClassHandler<IPv4Box>((o, e) => o.OnIPChanged(e));
+        TextInputMethodClientRequestedEvent.AddClassHandler<IPv4Box>((tb, e) =>
+        {
+            e.Client = tb._imClient;
+        });
     }
     
     #region Overrides
diff --git a/src/Ursa/Controls/IPv4Box/IPv4BoxInputMethodClient.cs b/src/Ursa/Controls/IPv4Box/IPv4BoxInputMethodClient.cs
new file mode 100644
index 000000000..c6812ec3b
--- /dev/null
+++ b/src/Ursa/Controls/IPv4Box/IPv4BoxInputMethodClient.cs
@@ -0,0 +1,44 @@
+using Avalonia;
+using Avalonia.Controls.Presenters;
+using Avalonia.Input.TextInput;
+
+namespace Ursa.Controls;
+
+public class IPv4BoxInputMethodClient:TextInputMethodClient
+{
+    private TextPresenter? _presenter;
+    public override Visual TextViewVisual => _presenter;
+    public override bool SupportsPreedit => false;
+    public override bool SupportsSurroundingText => true;
+
+    public override string SurroundingText
+    {
+        get;
+    }
+    public override Rect CursorRectangle { get; }
+    public override TextSelection Selection { get; set; }
+    private IPv4Box? _parent;
+    public void SetPresenter(TextPresenter? presenter, IPv4Box? parent)
+    {
+        if (this._parent != null)
+            this._parent.PropertyChanged -= new EventHandler<AvaloniaPropertyChangedEventArgs>(this.OnParentPropertyChanged);
+        this._parent = parent;
+        if (this._parent != null)
+            this._parent.PropertyChanged += new EventHandler<AvaloniaPropertyChangedEventArgs>(this.OnParentPropertyChanged);
+        TextPresenter presenter1 = this._presenter;
+        if (presenter1 != null)
+        {
+            presenter1.CaretBoundsChanged -= (EventHandler) ((s, e) => this.RaiseCursorRectangleChanged());
+        }
+        this._presenter = presenter;
+        if (this._presenter != null)
+            this._presenter.CaretBoundsChanged += (EventHandler) ((s, e) => this.RaiseCursorRectangleChanged());
+        this.RaiseTextViewVisualChanged();
+        this.RaiseCursorRectangleChanged();
+    }
+    
+    private void OnParentPropertyChanged(object? sender, AvaloniaPropertyChangedEventArgs e)
+    {
+        this.RaiseSelectionChanged();
+    }
+}
\ No newline at end of file