Implement closable tab.

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

@@ -13,9 +13,12 @@ namespace Cryville.Crtr.Browsing.UI {
 		[SerializeField]
 		TextMeshProUGUI m_text;
 		[SerializeField]
+		Button m_closeButton;
+		[SerializeField]
 		float m_deselectedAlpha = 0.6f;
 
 		public event Action<BrowserTab> Clicked;
+		public event Action<BrowserTab> Closed;
 
 		public Sprite Icon {
 			get { return m_icon.sprite; }
@@ -25,6 +28,10 @@ namespace Cryville.Crtr.Browsing.UI {
 			get { return m_text.text; }
 			set { m_text.text = value; }
 		}
+		public bool Closable {
+			get { return m_closeButton.gameObject.activeSelf; }
+			set { m_closeButton.gameObject.SetActive(value); }
+		}
 
 		bool m_selected;
 		public bool Selected {
@@ -45,11 +52,15 @@ namespace Cryville.Crtr.Browsing.UI {
 		void Awake() {
 			_group = GetComponent<CanvasGroup>();
 			_layout = GetComponent<BrowserTabLayout>();
+			m_closeButton.onClick.AddListener(OnCloseClicked);
 			UpdateSelected();
 		}
 
 		public void OnPointerClick(PointerEventData eventData) {
 			Clicked?.Invoke(this);
 		}
+		public void OnCloseClicked() {
+			Closed?.Invoke(this);
+		}
 	}
 }

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

@@ -47,6 +47,7 @@ namespace Cryville.Crtr.Browsing.UI {
 			tab.Icon = browser.Icon;
 			tab.Text = name;
 			tab.Clicked += OnTabClicked;
+			tab.Closed += OnTabClosed;
 			browser.gameObject.SetActive(false);
 			_tabs.Add(tab, browser);
 			return tab;
@@ -64,6 +65,12 @@ namespace Cryville.Crtr.Browsing.UI {
 				_tabs[_currentTab].gameObject.SetActive(true);
 			}
 		}
+		void OnTabClosed(BrowserTab tab) {
+			Destroy(tab.gameObject);
+			Destroy(_tabs[tab].gameObject);
+			_tabs.Remove(tab);
+			if (_currentTab == tab) _currentTab = null;
+		}
 
 		void OnActionsChanged() {
 			foreach (var tab in _tabs) {