Admin notes (#7259)

Co-authored-by: metalgearsloth <31366439+metalgearsloth@users.noreply.github.com>

Content.Client/Administration/UI/Notes/AdminNotesLine.xaml.cs

@@ -0,0 +1,142 @@
+using Content.Shared.Administration.Notes;
+using Robust.Client.AutoGenerated;
+using Robust.Client.UserInterface;
+using Robust.Client.UserInterface.Controls;
+using Robust.Client.UserInterface.XAML;
+using Robust.Shared.Input;
+using static Robust.Client.UserInterface.Controls.LineEdit;
+
+namespace Content.Client.Administration.UI.Notes;
+
+[GenerateTypedNameReferences]
+public sealed partial class AdminNotesLine : BoxContainer
+{
+    private RichTextLabel? _label;
+    private LineEdit? _edit;
+
+    public AdminNotesLine(SharedAdminNote note)
+    {
+        RobustXamlLoader.Load(this);
+
+        Note = note;
+        MouseFilter = MouseFilterMode.Pass;
+
+        AddLabel();
+    }
+
+    public SharedAdminNote Note { get; private set; }
+    public int Id => Note.Id;
+    public string OriginalMessage => Note.Message;
+    public string EditText => _edit?.Text ?? OriginalMessage;
+
+    public event Action<AdminNotesLine>? OnSubmitted;
+    public event Func<AdminNotesLine, bool>? OnRightClicked;
+
+    private void AddLabel()
+    {
+        if (_edit != null)
+        {
+            _edit.OnTextEntered -= Submitted;
+            _edit.OnFocusExit -= Submitted;
+
+            RemoveChild(_edit);
+            _edit = null;
+        }
+
+        _label = new RichTextLabel();
+        _label.SetMessage(Note.Message);
+
+        AddChild(_label);
+        _label.SetPositionFirst();
+
+        Separator.Visible = true;
+    }
+
+    private void AddLineEdit()
+    {
+        if (_label != null)
+        {
+            RemoveChild(_label);
+            _label = null;
+        }
+
+        _edit = new LineEdit {Text = Note.Message};
+        _edit.OnTextEntered += Submitted;
+        _edit.OnFocusExit += Submitted;
+
+        AddChild(_edit);
+        _edit.SetPositionFirst();
+        _edit.GrabKeyboardFocus();
+        _edit.CursorPosition = _edit.Text.Length;
+
+        Separator.Visible = false;
+    }
+
+    private void Submitted(LineEditEventArgs args)
+    {
+        OnSubmitted?.Invoke(this);
+
+        AddLabel();
+
+        var note = Note with {Message = args.Text};
+        UpdateNote(note);
+    }
+
+    protected override void KeyBindDown(GUIBoundKeyEventArgs args)
+    {
+        base.KeyBindDown(args);
+
+        if (args.Function != EngineKeyFunctions.UIRightClick &&
+            args.Function != EngineKeyFunctions.UIClick)
+        {
+            return;
+        }
+
+        if (OnRightClicked?.Invoke(this) == true)
+        {
+            args.Handle();
+        }
+    }
+
+    public void UpdateNote(SharedAdminNote note)
+    {
+        Note = note;
+        _label?.SetMessage(note.Message);
+
+        if (_edit != null && _edit.Text != note.Message)
+        {
+            _edit.Text = note.Message;
+        }
+    }
+
+    public void SetEditable(bool editable)
+    {
+        if (editable)
+        {
+            AddLineEdit();
+        }
+        else
+        {
+            AddLabel();
+        }
+    }
+
+    protected override void Dispose(bool disposing)
+    {
+        base.Dispose(disposing);
+
+        if (!disposing)
+        {
+            return;
+        }
+
+        if (_edit != null)
+        {
+            _edit.OnTextEntered -= Submitted;
+            _edit.OnFocusExit -= Submitted;
+        }
+
+        OnSubmitted = null;
+        OnRightClicked = null;
+    }
+}