1 files changed, 89 insertions, 0 deletions
diff --git a/Ryujinx/Ui/Applet/SwkbdAppletDialog.cs b/Ryujinx/Ui/Applet/SwkbdAppletDialog.cs
new file mode 100644
index 00000000..7c14f0e8
--- /dev/null
+++ b/Ryujinx/Ui/Applet/SwkbdAppletDialog.cs
@@ -0,0 +1,89 @@
+using Gtk;
+using System;
+
+namespace Ryujinx.Ui.Applet
+{
+    public class SwkbdAppletDialog : MessageDialog
+    {
+        private int _inputMin;
+        private int _inputMax;
+
+        private Predicate<int> _checkLength;
+
+        private readonly Label _validationInfo;
+
+        public Entry  InputEntry   { get; }
+        public Button OkButton     { get; }
+        public Button CancelButton { get; }
+
+        public SwkbdAppletDialog(Window parent) : base(parent, DialogFlags.Modal | DialogFlags.DestroyWithParent, MessageType.Question, ButtonsType.None, null)
+        {
+            SetDefaultSize(300, 0);
+
+            _validationInfo = new Label()
+            {
+                Visible = false
+            };
+
+            InputEntry = new Entry()
+            {
+                Visible = true
+            };
+
+            InputEntry.Activated += OnInputActivated;
+            InputEntry.Changed   += OnInputChanged;
+
+            OkButton     = (Button)AddButton("OK",     ResponseType.Ok);
+            CancelButton = (Button)AddButton("Cancel", ResponseType.Cancel);
+
+            ((Box)MessageArea).PackEnd(_validationInfo, true, true, 0);
+            ((Box)MessageArea).PackEnd(InputEntry,      true, true, 4);
+
+            SetInputLengthValidation(0, int.MaxValue); // Disable by default.
+        }
+
+        public void SetInputLengthValidation(int min, int max)
+        {
+            _inputMin = Math.Min(min, max);
+            _inputMax = Math.Max(min, max);
+
+            _validationInfo.Visible = false;
+
+            if (_inputMin <= 0 && _inputMax == int.MaxValue) // Disable.
+            {
+                _validationInfo.Visible = false;
+
+                _checkLength = (length) => true;
+            }
+            else if (_inputMin > 0 && _inputMax == int.MaxValue)
+            {
+                _validationInfo.Visible = true;
+                _validationInfo.Markup  = $"<i>Must be at least {_inputMin} characters long</i>";
+
+                _checkLength = (length) => _inputMin <= length;
+            }
+            else
+            {
+                _validationInfo.Visible = true;
+                _validationInfo.Markup  = $"<i>Must be {_inputMin}-{_inputMax} characters long</i>";
+
+                _checkLength = (length) => _inputMin <= length && length <= _inputMax;
+            }
+
+            OnInputChanged(this, EventArgs.Empty);
+        }
+
+        private void OnInputActivated(object sender, EventArgs e)
+        {
+            if (OkButton.IsSensitive)
+            {
+                Respond(ResponseType.Ok);
+            }
+        }
+
+        private void OnInputChanged(object sender, EventArgs e)
+        {
+            OkButton.Sensitive = _checkLength(InputEntry.Text.Length);
+        }
+    }
+}
+\ No newline at end of file