version 2.0.0

com.htc.upm.vive.openxr/Runtime/Raycast/Scripts/TargetCanvas.cs

@@ -0,0 +1,58 @@
+// Copyright HTC Corporation All Rights Reserved.
+
+using UnityEngine;
+
+namespace VIVE.OpenXR.Raycast
+{
+    public class TargetCanvas : MonoBehaviour
+    {
+		const string LOG_TAG = "VIVE.OpenXR.Raycast.TargetCanvas";
+		private void DEBUG(string msg) { Debug.Log(LOG_TAG + " " + gameObject.name + ", " + msg); }
+
+		Canvas m_Canvas = null;
+		private void Awake()
+		{
+			m_Canvas = GetComponent<Canvas>();
+		}
+		private void OnEnable()
+		{
+			DEBUG("OnEnable()");
+			if (m_Canvas != null)
+			{
+				DEBUG("OnEnable() RegisterTargetCanvas.");
+				CanvasProvider.RegisterTargetCanvas(m_Canvas);
+			}
+		}
+		private void OnDisable()
+		{
+			DEBUG("OnDisable()");
+			if (m_Canvas != null)
+			{
+				DEBUG("OnDisable() RemoveTargetCanvas.");
+				CanvasProvider.RemoveTargetCanvas(m_Canvas);
+			}
+		}
+
+		Canvas[] s_ChildrenCanvas = null;
+		private void Update()
+		{
+			Canvas[] canvases = GetComponentsInChildren<Canvas>();
+			if (canvases != null && canvases.Length > 0) // find children canvas
+			{
+				s_ChildrenCanvas = canvases;
+
+				for (int i = 0; i < s_ChildrenCanvas.Length; i++)
+					CanvasProvider.RegisterTargetCanvas(s_ChildrenCanvas[i]);
+
+				return;
+			}
+			if (s_ChildrenCanvas != null && s_ChildrenCanvas.Length > 0) // remove old children canvas
+			{
+				for (int i = 0; i < s_ChildrenCanvas.Length; i++)
+					CanvasProvider.RemoveTargetCanvas(s_ChildrenCanvas[i]);
+
+				s_ChildrenCanvas = null;
+			}
+		}
+	}
+}