Editor stuff

Assets/Plugins/com.unity.uiextensions/Runtime/Scripts/Utilities/UISelectableExtension.cs

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+/// Credit AriathTheWise, Sfyne 
+/// Sourced from - http://forum.unity3d.com/threads/scripts-useful-4-6-scripts-collection.264161/page-2#post-1796783
+/// Additional disabled - https://bitbucket.org/SimonDarksideJ/unity-ui-extensions/issues/47/uiselectableextension-_pressed-bug
+/// Extended to include a HELD state that continually fires while the button is held down.
+/// Refactored so it can be added to any button and expose the events in the editor.
+
+using UnityEngine.Events;
+using UnityEngine.EventSystems;
+
+namespace UnityEngine.UI.Extensions
+{
+	/// <summary>
+	/// UIButton
+	/// </summary>
+	[AddComponentMenu("UI/Extensions/UI Selectable Extension")]
+	[RequireComponent(typeof(Selectable))]
+	public class UISelectableExtension : MonoBehaviour, IPointerDownHandler, IPointerUpHandler
+	{
+		#region Sub-Classes
+		[System.Serializable]
+		public class UIButtonEvent : UnityEvent<PointerEventData.InputButton> { }
+		#endregion
+
+		#region Events
+		[Tooltip("Event that fires when a button is initially pressed down")]
+		public UIButtonEvent OnButtonPress;
+		[Tooltip("Event that fires when a button is released")]
+		public UIButtonEvent OnButtonRelease;
+		[Tooltip("Event that continually fires while a button is held down")]
+		public UIButtonEvent OnButtonHeld;
+		#endregion
+		
+		private bool _pressed;
+		private PointerEventData _heldEventData;
+
+		void IPointerDownHandler.OnPointerDown(PointerEventData eventData)
+		{
+			//Can't set the state as it's too locked down.
+			//DoStateTransition(SelectionState.Pressed, false);
+
+			if (OnButtonPress != null)
+			{
+				OnButtonPress.Invoke(eventData.button);
+			}
+			_pressed = true;
+			_heldEventData = eventData;
+		}
+
+
+		void IPointerUpHandler.OnPointerUp(PointerEventData eventData)
+		{
+			//DoStateTransition(SelectionState.Normal, false);
+
+			if (OnButtonRelease != null)
+			{
+				OnButtonRelease.Invoke(eventData.button);
+			}
+			_pressed = false;
+			_heldEventData = null;
+	   }
+	   
+		void Update()
+		{
+			if (!_pressed)
+				return;
+			
+			if (OnButtonHeld != null)
+			{
+				OnButtonHeld.Invoke(_heldEventData.button);
+			}
+		}
+		
+		/// <summary>
+		/// Test method to verify a control has been clicked
+		/// </summary>
+		public void TestClicked()
+		{
+			#if DEBUG || UNITY_EDITOR
+				Debug.Log("Control Clicked");
+			#endif
+		}
+		
+		/// <summary>
+		/// Test method to verify a control is pressed
+		/// </summary>
+		public void TestPressed()
+		{
+			#if DEBUG || UNITY_EDITOR
+				Debug.Log("Control Pressed");
+			#endif
+		}
+		
+		/// <summary>
+		/// est method to verify if a control is released
+		/// </summary>
+		public void TestReleased()
+		{
+			#if DEBUG || UNITY_EDITOR
+				Debug.Log("Control Released");
+			#endif
+		}
+		
+		/// <summary>
+		/// est method to verify if a control is being held
+		/// </summary>
+		public void TestHold()
+		{
+			#if DEBUG || UNITY_EDITOR
+				Debug.Log("Control Held");
+			#endif
+		}
+
+		//Fixed UISelectableExtension inactive bug (if gameObject becomes inactive while button is held down it never goes back to _pressed = false)
+		void OnDisable()
+		{
+			_pressed = false;
+		}
+	}
+}