1st Pass update, Updated controls:

* DropDownList/ComboBox
* Reorderable List (Screen Space Camera Updates
* Curved text fixes

Examples/TextEffects/TextEffects.unity

@@ -37,7 +37,7 @@ RenderSettings:
   m_ReflectionIntensity: 1
   m_CustomReflection: {fileID: 0}
   m_Sun: {fileID: 0}
-  m_IndirectSpecularColor: {r: 0, g: 0, b: 0, a: 1}
+  m_IndirectSpecularColor: {r: 0.44657868, g: 0.49641263, b: 0.57481706, a: 1}
 --- !u!157 &3
 LightmapSettings:
   m_ObjectHideFlags: 0
@@ -756,9 +756,9 @@ MonoBehaviour:
   m_Script: {fileID: 11500000, guid: 97a58789aa01843488ef44dc747ee8e8, type: 3}
   m_Name: 
   m_EditorClassIdentifier: 
-  useHalfCharWidth: 0
-  halfCharWidth: 0
   m_spacing: 94.2
+  HalfCharWidth: 1
+  UseHalfCharWidth: 0
 --- !u!114 &755348327
 MonoBehaviour:
   m_ObjectHideFlags: 0
@@ -985,7 +985,7 @@ RectTransform:
   m_PrefabParentObject: {fileID: 0}
   m_PrefabInternal: {fileID: 0}
   m_GameObject: {fileID: 1101119004}
-  m_LocalRotation: {x: -0, y: -0, z: -0, w: 1}
+  m_LocalRotation: {x: 0, y: 0, z: 0, w: 1}
   m_LocalPosition: {x: 0, y: 0, z: 0}
   m_LocalScale: {x: 1, y: 1, z: 1}
   m_Children:
@@ -1009,7 +1009,7 @@ MonoBehaviour:
   m_Script: {fileID: 11500000, guid: 0ec526a95e7733b4396be80d3e1df80e, type: 3}
   m_Name: 
   m_EditorClassIdentifier: 
-  radius: 121.96
+  radius: 98.31
 --- !u!114 &1101119007
 MonoBehaviour:
   m_ObjectHideFlags: 0
@@ -1339,9 +1339,9 @@ MonoBehaviour:
   m_Script: {fileID: 11500000, guid: 97a58789aa01843488ef44dc747ee8e8, type: 3}
   m_Name: 
   m_EditorClassIdentifier: 
-  useHalfCharWidth: 1
-  halfCharWidth: 4.55
   m_spacing: 71.12
+  HalfCharWidth: 1
+  UseHalfCharWidth: 0
 --- !u!114 &1814753282
 MonoBehaviour:
   m_ObjectHideFlags: 0

Scripts/Controls/ComboBox/AutoCompleteComboBox.cs

@@ -76,8 +76,9 @@ namespace UnityEngine.UI.Extensions
 		public bool SelectFirstItemOnStart = false;
 
 		[SerializeField]
+        [Tooltip("Change input text color based on matching items")]
         private bool _ChangeInputTextColorBasedOnMatchingItems = false;
-		public bool ChangeInputTextColorBasedOnMatchingItems{
+		public bool InputColorMatching{
 			get { return _ChangeInputTextColorBasedOnMatchingItems; }
 			set 
 			{
@@ -100,7 +101,7 @@ namespace UnityEngine.UI.Extensions
 		}
 
         [System.Serializable]
-		public class SelectinTextChangedEvent :  UnityEngine.Events.UnityEvent<string> {
+		public class SelectionTextChangedEvent :  UnityEngine.Events.UnityEvent<string> {
 		}
 
 		[System.Serializable]
@@ -108,14 +109,12 @@ namespace UnityEngine.UI.Extensions
 		}
 
 		// fires when input text is changed;
-		public SelectinTextChangedEvent OnSelectinTextChanged;
+		public SelectionTextChangedEvent OnSelectionTextChanged;
 		// fires when when an Item gets selected / deselected (including when items are added/removed once this is possible)
 		public SelectionValidityChangedEvent OnSelectionValidityChanged;
 		// fires in both cases
 		public SelectionChangedEvent OnSelectionChanged;
 
-
-
         public void Awake()
         {
             Initialize();
@@ -354,7 +353,7 @@ namespace UnityEngine.UI.Extensions
 			bool validity_changed = (_panelItems.Contains (Text) == _selectionIsValid);
 			_selectionIsValid = _panelItems.Contains (Text);
 			OnSelectionChanged.Invoke (Text, _selectionIsValid);
-			OnSelectinTextChanged.Invoke (Text);
+			OnSelectionTextChanged.Invoke (Text);
 			if(validity_changed){
 				OnSelectionValidityChanged.Invoke (_selectionIsValid);
 			}
@@ -363,7 +362,7 @@ namespace UnityEngine.UI.Extensions
         }
 
 		private void SetInputTextColor(){
-			if (ChangeInputTextColorBasedOnMatchingItems) {
+			if (InputColorMatching) {
 				if (_selectionIsValid) {
 					_mainInput.textComponent.color = ValidSelectionTextColor;
 				} else if (_panelItems.Count > 0) {

Scripts/Controls/ComboBox/ComboBox.cs

@@ -15,7 +15,18 @@ namespace UnityEngine.UI.Extensions
 
         public List<string> AvailableOptions;
 
-        public System.Action<int> OnSelectionChanged; // fires when selection is changed;
+        [SerializeField]
+        private float _scrollBarWidth = 20.0f;
+
+        [SerializeField]
+        private int _itemsToDisplay;
+
+        [System.Serializable]
+        public class SelectionChangedEvent : UnityEngine.Events.UnityEvent<string>
+        {
+        }
+        // fires when item is changed;
+        public SelectionChangedEvent OnSelectionChanged;
 
         //private bool isInitialized = false;
         private bool _isPanelActive = false;
@@ -46,8 +57,6 @@ namespace UnityEngine.UI.Extensions
 
         public string Text { get; private set; }
 
-        [SerializeField]
-        private float _scrollBarWidth = 20.0f;
         public float ScrollBarWidth
         {
             get { return _scrollBarWidth; }
@@ -61,8 +70,6 @@ namespace UnityEngine.UI.Extensions
         //    private int scrollOffset; //offset of the selected item
         //    private int _selectedIndex = 0;
 
-        [SerializeField]
-        private int _itemsToDisplay;
         public int ItemsToDisplay
         {
             get { return _itemsToDisplay; }
@@ -294,6 +301,7 @@ namespace UnityEngine.UI.Extensions
             {
                 ToggleDropdownPanel(false);
             }
+            OnSelectionChanged.Invoke(Text);
         }
 
         /// <summary>

Scripts/Controls/ComboBox/DropDownList.cs

@@ -79,8 +79,6 @@ namespace UnityEngine.UI.Extensions
 		public SelectionChangedEvent OnSelectionChanged;
 
 
-
-
 		public void Start()
 		{
 			Initialize();

Scripts/Controls/ReorderableList/ReorderableList.cs

@@ -2,6 +2,8 @@
 /// Sourced from - http://forum.unity3d.com/threads/free-reorderable-list.364600/
 
 using System;
+using System.Collections;
+using System.Linq;
 using UnityEngine.Events;
 
 namespace UnityEngine.UI.Extensions
@@ -28,6 +30,7 @@ namespace UnityEngine.UI.Extensions
         public ReorderableListHandler OnElementDropped = new ReorderableListHandler();
         public ReorderableListHandler OnElementGrabbed = new ReorderableListHandler();
         public ReorderableListHandler OnElementRemoved = new ReorderableListHandler();
+        public ReorderableListHandler OnElementAdded = new ReorderableListHandler();
 
         private RectTransform _content;
         private ReorderableListContent _listContent;
@@ -83,9 +86,9 @@ namespace UnityEngine.UI.Extensions
                 Debug.LogError("You need to have a Graphic control (such as an Image) for the list [" + name + "] to be droppable", gameObject);
                 return;
             }
-            if (GetCanvas().renderMode != RenderMode.ScreenSpaceOverlay)
+            if (GetCanvas().renderMode > RenderMode.ScreenSpaceCamera)
             {
-                Debug.LogError("The ReOrderable List is only supported on a Screenspace-Overlay Canvas at the moment");
+                Debug.LogError("The ReOrderable List is only supported on a Screen-Space Canvas at the moment");
             }
 
             _listContent = ContentLayout.gameObject.AddComponent<ReorderableListContent>();
@@ -104,6 +107,11 @@ namespace UnityEngine.UI.Extensions
             public GameObject SourceObject;
             public int ToIndex;
             public ReorderableList ToList;
+
+            public void Cancel()
+            {
+                SourceObject.GetComponent<ReorderableListElement>().isValid = false;
+            }
         }
 
         #endregion

Scripts/Controls/ReorderableList/ReorderableList.cs.meta

@@ -1,7 +1,7 @@
 fileFormatVersion: 2
 guid: 6b333d67eb08d464d823874f6a1666c2
-timeCreated: 1446072130
+timeCreated: 1492560112
-licenseType: Pro
+licenseType: Free
 MonoImporter:
   serializedVersion: 2
   defaultReferences: []

Scripts/Controls/ReorderableList/ReorderableListContent.cs

@@ -14,9 +14,15 @@ namespace UnityEngine.UI.Extensions
         private ReorderableList _extList;
         private RectTransform _rect;
 
+        private void OnEnable()
+        {
+            if(_rect)StartCoroutine(RefreshChildren());
+        }
+
+
         public void OnTransformChildrenChanged()
         {
-            StartCoroutine(RefreshChildren());
+            if(this.isActiveAndEnabled)StartCoroutine(RefreshChildren());
         }
 
         public void Init(ReorderableList extList)

Scripts/Controls/ReorderableList/ReorderableListElement.cs

@@ -2,7 +2,9 @@
 /// Sourced from - http://forum.unity3d.com/threads/free-reorderable-list.364600/
 /// Last Child Fix - https://bitbucket.org/ddreaper/unity-ui-extensions/issues/70/all-re-orderable-lists-cause-a-transform
 
+using System;
 using System.Collections.Generic;
+using System.Linq;
 using UnityEngine.EventSystems;
 
 namespace UnityEngine.UI.Extensions
@@ -11,6 +13,14 @@ namespace UnityEngine.UI.Extensions
     [RequireComponent(typeof(RectTransform))]
     public class ReorderableListElement : MonoBehaviour, IDragHandler, IBeginDragHandler, IEndDragHandler
     {
+        [Tooltip("Can this element be dragged?")]
+        public bool IsGrabbable = true;
+        [Tooltip("Can this element be transfered to another list")]
+        public bool IsTransferable = true;
+        [Tooltip("Can this element be dropped in space?")]
+        public bool isDroppableInSpace = false;
+
+
         private readonly List<RaycastResult> _raycastResults = new List<RaycastResult>();
         private ReorderableList _currentReorderableListRaycasted;
         private RectTransform _draggingObject;
@@ -22,16 +32,18 @@ namespace UnityEngine.UI.Extensions
         private bool _isDragging;
         private RectTransform _rect;
         private ReorderableList _reorderableList;
+        internal bool isValid;
 
         #region IBeginDragHandler Members
 
         public void OnBeginDrag(PointerEventData eventData)
         {
+            isValid = true;
             if (_reorderableList == null)
                 return;
 
             //Can't drag, return...
-            if (!_reorderableList.IsDraggable)
+            if (!_reorderableList.IsDraggable || !this.IsGrabbable)
             {
                 _draggingObject = null;
                 return;
@@ -54,6 +66,11 @@ namespace UnityEngine.UI.Extensions
                         FromIndex = _fromIndex,
                     });
                 }
+                if (isValid == false)
+                {
+                    _draggingObject = null;
+                    return;
+                }
             }
             //Else Duplicate
             else
@@ -86,6 +103,12 @@ namespace UnityEngine.UI.Extensions
                     FromList = _reorderableList,
                     FromIndex = _fromIndex,
                 });
+
+                if (!isValid)
+                {
+                    CancelDrag();
+                    return;
+                }
             }
 
             _isDragging = true;
@@ -99,9 +122,17 @@ namespace UnityEngine.UI.Extensions
         {
             if (!_isDragging)
                 return;
-
+            if (!isValid)
+            {
+                CancelDrag();
+                return;
+            }
             //Set dragging object on cursor
-            _draggingObject.position = eventData.position;
+            var canvas = _draggingObject.GetComponentInParent<Canvas>();
+            Vector3 worldPoint;
+            RectTransformUtility.ScreenPointToWorldPointInRectangle(canvas.GetComponent<RectTransform>(), eventData.position,
+                canvas.worldCamera, out worldPoint);
+            _draggingObject.position = worldPoint;
 
             //Check everything under the cursor to find a ReorderableList
             EventSystem.current.RaycastAll(eventData, _raycastResults);
@@ -135,11 +166,11 @@ namespace UnityEngine.UI.Extensions
                     var c = _currentReorderableListRaycasted.Content.GetChild(j).GetComponent<RectTransform>();
 
                     if (_currentReorderableListRaycasted.ContentLayout is VerticalLayoutGroup)
-                        dist = Mathf.Abs(c.position.y - eventData.position.y);
+                        dist = Mathf.Abs(c.position.y - worldPoint.y);
                     else if (_currentReorderableListRaycasted.ContentLayout is HorizontalLayoutGroup)
-                        dist = Mathf.Abs(c.position.x - eventData.position.x);
+                        dist = Mathf.Abs(c.position.x - worldPoint.x);
                     else if (_currentReorderableListRaycasted.ContentLayout is GridLayoutGroup)
-                        dist = (Mathf.Abs(c.position.x - eventData.position.x) + Mathf.Abs(c.position.y - eventData.position.y));
+                        dist = (Mathf.Abs(c.position.x - worldPoint.x) + Mathf.Abs(c.position.y - worldPoint.y));
 
                     if (dist < minDistance)
                     {
@@ -167,17 +198,10 @@ namespace UnityEngine.UI.Extensions
             {
                 //If we have a, ReorderableList that is dropable
                 //Put the dragged object into the content and at the right index
-                if (_currentReorderableListRaycasted != null && _currentReorderableListRaycasted.IsDropable)
+                if (_currentReorderableListRaycasted != null && _currentReorderableListRaycasted.IsDropable
+                    && (IsTransferable || _currentReorderableListRaycasted == _reorderableList ))
                 {
-                    RefreshSizes();
+                    var args = new ReorderableList.ReorderableListEventStruct
-                    _draggingObject.SetParent(_currentReorderableListRaycasted.Content, false);
-                    _draggingObject.SetSiblingIndex(_fakeElement.GetSiblingIndex());
-
-
-                    //Send OnelementDropped Event
-                    if (_reorderableList.OnElementDropped != null)
-                    {
-                        _reorderableList.OnElementDropped.Invoke(new ReorderableList.ReorderableListEventStruct
                     {
                         DroppedObject = _draggingObject.gameObject,
                         IsAClone = _reorderableList.CloneDraggedObject,
@@ -185,13 +209,59 @@ namespace UnityEngine.UI.Extensions
                         FromList = _reorderableList,
                         FromIndex = _fromIndex,
                         ToList = _currentReorderableListRaycasted,
-                            ToIndex = _fakeElement.GetSiblingIndex() - 1
+                        ToIndex = _fakeElement.GetSiblingIndex()
-                        });
+                    };
+                    //Send OnelementDropped Event
+                    if (_reorderableList && _reorderableList.OnElementDropped != null)
+                    {
+                        _reorderableList.OnElementDropped.Invoke(args);
                     }
+                    if (!isValid)
+                    {
+                        CancelDrag();
+                        return;
+                    }
+                    RefreshSizes();
+                    _draggingObject.SetParent(_currentReorderableListRaycasted.Content, false);
+                    _draggingObject.SetSiblingIndex(_fakeElement.GetSiblingIndex());
+
+                    _reorderableList.OnElementAdded.Invoke(args);
+
+                    if(!isValid) throw new Exception("It's too late to cancel the Transfer! Do so in OnElementDropped!");
+
                 }
                 //We don't have an ReorderableList
                 else
                 {
+                    if (this.isDroppableInSpace)
+                    {
+                        _reorderableList.OnElementDropped.Invoke(new ReorderableList.ReorderableListEventStruct
+                        {
+                            DroppedObject = _draggingObject.gameObject,
+                            IsAClone = _reorderableList.CloneDraggedObject,
+                            SourceObject =
+                                _reorderableList.CloneDraggedObject ? gameObject : _draggingObject.gameObject,
+                            FromList = _reorderableList,
+                            FromIndex = _fromIndex
+                        });
+                    }
+                    else
+                    {
+                        CancelDrag();
+                    }
+                }
+            }
+
+            //Delete fake element
+            if (_fakeElement != null)
+                Destroy(_fakeElement.gameObject);
+        }
+
+        #endregion
+
+        void CancelDrag()
+        {
+            _isDragging = false;
             //If it's a clone, delete it
             if (_reorderableList.CloneDraggedObject)
             {
@@ -203,8 +273,24 @@ namespace UnityEngine.UI.Extensions
                 RefreshSizes();
                 _draggingObject.SetParent(_reorderableList.Content, false);
                 _draggingObject.SetSiblingIndex(_fromIndex);
-                    }
+
-                }
+
+                var args = new ReorderableList.ReorderableListEventStruct
+                {
+                    DroppedObject = _draggingObject.gameObject,
+                    IsAClone = _reorderableList.CloneDraggedObject,
+                    SourceObject = _reorderableList.CloneDraggedObject ? gameObject : _draggingObject.gameObject,
+                    FromList = _reorderableList,
+                    FromIndex = _fromIndex,
+                    ToList = _reorderableList,
+                    ToIndex = _fromIndex
+                };
+
+
+                _reorderableList.OnElementAdded.Invoke(args);
+
+                if (!isValid) throw new Exception("Transfer is already Cancelled.");
+
             }
 
             //Delete fake element
@@ -212,8 +298,6 @@ namespace UnityEngine.UI.Extensions
                 Destroy(_fakeElement.gameObject);
         }
 
-        #endregion
-
         private void RefreshSizes()
         {
             Vector2 size = _draggingObjectOriginalSize;

Scripts/Controls/ReorderableList/ReorderableListElement.cs.meta

@@ -1,7 +1,7 @@
 fileFormatVersion: 2
 guid: 916e98f1b982a9a4082fcc45c87b66c5
-timeCreated: 1446072130
+timeCreated: 1492560112
-licenseType: Pro
+licenseType: Free
 MonoImporter:
   serializedVersion: 2
   defaultReferences: []

Scripts/Effects/CurvedText.cs

@@ -57,9 +57,12 @@ namespace UnityEngine.UI.Extensions
         }
         protected override void OnRectTransformDimensionsChange()
         {
-            var tmpRect = curveForText[curveForText.length - 1];
+            if (rectTrans)
+            {
+                Keyframe tmpRect = curveForText[curveForText.length - 1];
                 tmpRect.time = rectTrans.rect.width;
                 curveForText.MoveKey(curveForText.length - 1, tmpRect);
             }
         }
+    }
 }