Implement drafted new UI.

Assets/Cryville/Crtr/Browsing/UI/BrowserTab.cs

@@ -0,0 +1,37 @@
+using UnityEngine;
+using UnityEngine.EventSystems;
+
+namespace Cryville.Crtr.Browsing.UI {
+	[RequireComponent(typeof(BrowserTabLayout))]
+	[RequireComponent(typeof(CanvasGroup))]
+	internal class BrowserTab : MonoBehaviour, IPointerClickHandler {
+		[SerializeField]
+		float m_deselectedAlpha = 0.6f;
+
+		bool m_selected;
+		public bool Selected {
+			get { return m_selected; }
+			set {
+				if (m_selected == value) return;
+				m_selected = value;
+				UpdateSelected();
+			}
+		}
+		void UpdateSelected() {
+			_group.alpha = Selected ? 1 : m_deselectedAlpha;
+			_layout.Selected = Selected;
+		}
+
+		CanvasGroup _group;
+		BrowserTabLayout _layout;
+		void Awake() {
+			_group = GetComponent<CanvasGroup>();
+			_layout = GetComponent<BrowserTabLayout>();
+			UpdateSelected();
+		}
+
+		public void OnPointerClick(PointerEventData eventData) {
+			throw new System.NotImplementedException();
+		}
+	}
+}