CrayonWindow to XAML UI (#4987)

* Create and rename files

* CrayonWindow to XAML

Content.Client/Crayon/UI/CrayonWindow.xaml.cs

@@ -0,0 +1,105 @@
+using System.Collections.Generic;
+using Content.Client.Stylesheets;
+using Content.Shared.Crayon;
+using Robust.Client.AutoGenerated;
+using Robust.Client.Graphics;
+using Robust.Client.UserInterface.Controls;
+using Robust.Client.UserInterface.CustomControls;
+using Robust.Client.UserInterface.XAML;
+using Robust.Client.Utility;
+using Robust.Shared.Maths;
+using Robust.Shared.Utility;
+using static Robust.Client.UserInterface.Controls.BaseButton;
+
+namespace Content.Client.Crayon.UI
+{
+    [GenerateTypedNameReferences]
+    public partial class CrayonWindow : SS14Window
+    {
+        public CrayonBoundUserInterface Owner { get; }
+
+        private Dictionary<string, Texture>? _decals;
+        private string? _selected;
+        private Color _color;
+
+        public CrayonWindow(CrayonBoundUserInterface owner)
+        {
+            RobustXamlLoader.Load(this);
+
+            Owner = owner;
+
+            Search.OnTextChanged += _ => RefreshList();
+        }
+
+        private void RefreshList()
+        {
+            // Clear
+            Grid.RemoveAllChildren();
+            if (_decals == null) return;
+
+            var filter = Search.Text;
+            foreach (var (decal, tex) in _decals)
+            {
+                if (!decal.Contains(filter))
+                    continue;
+
+                var button = new TextureButton()
+                {
+                    TextureNormal = tex,
+                    Name = decal,
+                    ToolTip = decal,
+                    Modulate = _color,
+                };
+                button.OnPressed += ButtonOnPressed;
+                if (_selected == decal)
+                {
+                    var panelContainer = new PanelContainer()
+                    {
+                        PanelOverride = new StyleBoxFlat()
+                        {
+                            BackgroundColor = StyleNano.ButtonColorDefault,
+                        },
+                        Children =
+                        {
+                            button,
+                        },
+                    };
+                    Grid.AddChild(panelContainer);
+                }
+                else
+                {
+                    Grid.AddChild(button);
+                }
+            }
+        }
+
+        private void ButtonOnPressed(ButtonEventArgs obj)
+        {
+            if (obj.Button.Name == null) return;
+
+            Owner.Select(obj.Button.Name);
+            _selected = obj.Button.Name;
+            RefreshList();
+        }
+
+        public void UpdateState(CrayonBoundUserInterfaceState state)
+        {
+            _selected = state.Selected;
+            _color = state.Color;
+            RefreshList();
+        }
+
+        public void Populate(CrayonDecalPrototype proto)
+        {
+            var path = new ResourcePath(proto.SpritePath);
+            _decals = new Dictionary<string, Texture>();
+            foreach (var state in proto.Decals)
+            {
+                var rsi = new SpriteSpecifier.Rsi(path, state);
+                _decals.Add(state, rsi.Frame0());
+            }
+
+            RefreshList();
+        }
+    }
+}