Predict and cleanup RingerComponent (#35907)

* clean up most stuff

* move to shared

* works

* shuffle shit around

* oops! access

* fixes

* todo: everything

* SUFFERING

* curse you

Content.Client/PDA/Ringer/RingtoneMenu.xaml.cs

@@ -1,6 +1,6 @@
 using System.Numerics;
+using Content.Client.UserInterface.Controls;
 using Robust.Client.AutoGenerated;
-using Robust.Client.UserInterface.CustomControls;
 using Robust.Client.UserInterface.XAML;
 using Content.Shared.PDA;
 using Robust.Client.UserInterface.Controls;
@@ -8,15 +8,21 @@ using Robust.Client.UserInterface.Controls;
 namespace Content.Client.PDA.Ringer
 {
     [GenerateTypedNameReferences]
-    public sealed partial class RingtoneMenu : DefaultWindow
+    public sealed partial class RingtoneMenu : FancyWindow
     {
         public string[] PreviousNoteInputs = new[] { "A", "A", "A", "A", "A", "A" };
-        public LineEdit[] RingerNoteInputs = default!;
+        public LineEdit[] RingerNoteInputs;
+
+        public event Action? SetRingtoneButtonPressed;
+        public event Action? TestRingtoneButtonPressed;
 
         public RingtoneMenu()
         {
             RobustXamlLoader.Load(this);
 
+            SetRingerButton.OnPressed += _ => SetRingtoneButtonPressed?.Invoke();
+            TestRingerButton.OnPressed += _ => TestRingtoneButtonPressed?.Invoke();
+
             RingerNoteInputs = new[] { RingerNoteOneInput, RingerNoteTwoInput, RingerNoteThreeInput, RingerNoteFourInput, RingerNoteFiveInput, RingerNoteSixInput };
 
             for (var i = 0; i < RingerNoteInputs.Length; ++i)
@@ -43,14 +49,28 @@ namespace Content.Client.PDA.Ringer
                     foo();
                     input.CursorPosition = input.Text.Length; // Resets caret position to the end of the typed input
                 };
-                input.OnTextChanged += _ =>
-                {
-                    input.Text = input.Text.ToUpper();
 
-                    if (!IsNote(input.Text))
+                input.OnTextChanged += args =>
+                {
+                    // Convert to uppercase
+                    var upperText = args.Text.ToUpper();
+
+                    // Filter to only valid notes
+                    var newText = upperText;
+                    if (!IsNote(newText))
+                    {
+                        newText = PreviousNoteInputs[index];
                         input.AddStyleClass("Caution");
+                    }
                     else
+                    {
+                        PreviousNoteInputs[index] = newText;
                         input.RemoveStyleClass("Caution");
+                    }
+
+                    // Only update if there's a change
+                    if (newText != input.Text)
+                        input.Text = newText;
                 };
             }
         }