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Assets/Samples/Unity Render Streaming/3.1.0-exp.9/Example/WebBrowserInput/UIController.cs

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+using System.Linq;
+using UnityEngine;
+using UnityEngine.InputSystem;
+using UnityEngine.UI;
+
+namespace Unity.RenderStreaming.Samples
+{
+    [RequireComponent(typeof(RectTransform))]
+    class UIController : MonoBehaviour
+    {
+        [SerializeField] Text text;
+        [SerializeField] CanvasGroup canvasGroup;
+        [SerializeField] Image pointer;
+        [SerializeField] GameObject noticeTouchControl;
+        [SerializeField]
+        private AnimationCurve transitionCurve =
+            new AnimationCurve(
+                new Keyframe(0.75f, 1f, 0f, 0f),
+                new Keyframe(1f, 0f, 0f, 0f));
+
+        private float timeTransition = 0f;
+        private Color transparentColor = new Color(0, 0, 0, 0);
+        private RectTransform m_rectTransform = null;
+
+        private Keyboard m_keyboard;
+        private Mouse m_mouse;
+        private Touchscreen m_screen;
+
+        public void SetDevice(InputDevice device, bool add = false)
+        {
+            switch (device)
+            {
+                case Mouse mouse:
+                    m_mouse = add ? mouse : null;
+                    return;
+                case Keyboard keyboard:
+                    m_keyboard = add ? keyboard : null;
+                    if (add)
+                        m_keyboard.onTextInput += OnTextInput;
+                    return;
+                case Touchscreen screen:
+                    m_screen = add ? screen : null;
+                    if (noticeTouchControl != null)
+                    {
+                        noticeTouchControl.SetActive(add);
+                    }
+                    return;
+            }
+        }
+
+        void Start()
+        {
+            m_rectTransform = GetComponent<RectTransform>();
+            canvasGroup.alpha = 0;
+            text.text = string.Empty;
+        }
+
+        void FixedUpdate()
+        {
+            if (m_keyboard != null && !m_keyboard.anyKey.isPressed &&
+                !Mathf.Approximately(canvasGroup.alpha, 0f))
+            {
+                timeTransition += Time.deltaTime;
+                canvasGroup.alpha = transitionCurve.Evaluate(timeTransition);
+                if (Mathf.Approximately(canvasGroup.alpha, 0f))
+                {
+                    text.text = string.Empty;
+                }
+            }
+
+            bool pointerFromMouse = HighlightPointerFromMouse(
+                m_mouse, new Vector2Int(Screen.width, Screen.height));
+            if (pointerFromMouse)
+                return;
+
+            var touches = m_screen?.GetTouches();
+
+            if (touches != null && touches.Count() > 0)
+            {
+                var position = Vector2.zero;
+                var count = touches.Count();
+                var activeTouches = touches.ToArray();
+
+                for (var i = 0; i < count; i++)
+                {
+                    position += activeTouches[i].screenPosition;
+                }
+
+                pointer.rectTransform.anchoredPosition = position / (float)count;
+                pointer.color = Color.red;
+            }
+            else
+            {
+                pointer.color = transparentColor;
+            }
+        }
+
+        //----------------------------------------------------------------------------------------------------------------------
+        bool HighlightPointerFromMouse(Mouse mouse, Vector2Int screenSize)
+        {
+            if (mouse == null)
+                return false;
+            if (!Screen.safeArea.Contains(mouse.position.ReadValue()))
+                return false;
+
+            if (!mouse.leftButton.isPressed && !mouse.rightButton.isPressed)
+                return false;
+            Vector2 mousePos = mouse.position.ReadValue();
+            Vector2 pos = mousePos / screenSize * new Vector2(m_rectTransform.rect.width, m_rectTransform.rect.height);
+
+            pointer.rectTransform.anchoredPosition = pos;
+            pointer.color = Color.red;
+            return true;
+        }
+
+        void OnTextInput(char c)
+        {
+            canvasGroup.alpha = 1f;
+            text.text = c.ToString();
+            timeTransition = 0;
+        }
+    }
+}