1 files changed, 83 insertions, 0 deletions
diff --git a/Assets/uGUI-2017.1/UnityEngine.UI/UI/Core/UIControls/Button.cs b/Assets/uGUI-2017.1/UnityEngine.UI/UI/Core/UIControls/Button.cs
new file mode 100644
index 0000000..d0c9ae3
--- /dev/null
+++ b/Assets/uGUI-2017.1/UnityEngine.UI/UI/Core/UIControls/Button.cs
@@ -0,0 +1,83 @@
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine.Events;
+using UnityEngine.EventSystems;
+using UnityEngine.Serialization;
+
+namespace UnityEngine.UI
+{
+    // Button that's meant to work with mouse or touch-based devices.
+    [AddComponentMenu("UI/Button", 30)]
+    public class Button 
+        : Selectable
+        , IPointerClickHandler // 鼠标点击\触摸
+        , ISubmitHandler  // Input>Submit触发，比如手柄、键盘某个按键按下
+    {
+        [Serializable]
+        public class ButtonClickedEvent : UnityEvent {}
+
+        // Event delegates triggered on click.
+        [FormerlySerializedAs("onClick")]
+        [SerializeField]
+        private ButtonClickedEvent m_OnClick = new ButtonClickedEvent();
+
+        protected Button()
+        {}
+
+        public ButtonClickedEvent onClick
+        {
+            get { return m_OnClick; }
+            set { m_OnClick = value; }
+        }
+
+        // 调回调
+        private void Press()
+        {
+            if (!IsActive() || !IsInteractable())
+                return;
+
+            UISystemProfilerApi.AddMarker("Button.onClick", this);
+            m_OnClick.Invoke();
+        }
+
+        // Trigger all registered callbacks.
+        public virtual void OnPointerClick(PointerEventData eventData)
+        {
+            if (eventData.button != PointerEventData.InputButton.Left)
+                return;
+
+            Press();
+        }
+
+        public virtual void OnSubmit(BaseEventData eventData)
+        {
+            LogHelper.Log("OnSubmit() " + gameObject.name);
+
+            Press();
+
+            // if we get set disabled during the press
+            // don't run the coroutine.
+            if (!IsActive() || !IsInteractable())
+                return;
+
+            DoStateTransition(SelectionState.Pressed, false);
+            StartCoroutine(OnFinishSubmit());
+        }
+
+        private IEnumerator OnFinishSubmit()
+        {
+            var fadeTime = colors.fadeDuration;
+            var elapsedTime = 0f;
+
+            while (elapsedTime < fadeTime)
+            {
+                elapsedTime += Time.unscaledDeltaTime;
+                yield return null;
+            }
+
+            DoStateTransition(currentSelectionState, false);
+        }
+
+    }
+}