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com.unity.uiextensions
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Updated enhancement to scm to work generically with either vertical or horizontal scroll snaps. 

Will also automatically configure the parent scroll snap if missing
Added fault protection in case a ParentScrollSnap is not available.
pull/413/head
Simon (darkside) Jackson 2020-05-22 13:29:03 +01:00
parent 6ea1c4e8e5
commit 5c94a03081
1 changed files with 21 additions and 11 deletions
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32
Scripts/Utilities/ScrollConflictManager.cs
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@ -14,8 +14,12 @@ namespace UnityEngine.UI.Extensions
[AddComponentMenu("UI/Extensions/Scrollrect Conflict Manager")]
public class ScrollConflictManager : MonoBehaviour, IBeginDragHandler, IEndDragHandler, IDragHandler
{
[Tooltip("The parent ScrollRect control hosting this ScrollSnap")]
public ScrollRect ParentScrollRect;
public HorizontalScrollSnap ParentScrollSnapHorizontal;
[Tooltip("The parent ScrollSnap control hosting this Scroll Snap.\nIf left empty, it will use the ScrollSnap of the ParentScrollRect")]
public ScrollSnapBase ParentScrollSnap;
private ScrollRect _myScrollRect;
private IBeginDragHandler[] _beginDragHandlers;
private IEndDragHandler[] _endDragHandlers;
@ -35,13 +39,18 @@ namespace UnityEngine.UI.Extensions
if (scrollOtherHorizontally)
{
if (_myScrollRect.horizontal)
Debug.Log("You have added the SecondScrollRect to a scroll view that already has both directions selected");
Debug.LogError("You have added the SecondScrollRect to a scroll view that already has both directions selected");
if (!ParentScrollRect.horizontal)
Debug.Log("The other scroll rect doesnt support scrolling horizontally");
Debug.LogError("The other scroll rect doesnt support scrolling horizontally");
}
else if (!ParentScrollRect.vertical)
{
Debug.Log("The other scroll rect doesnt support scrolling vertically");
Debug.LogError("The other scroll rect doesnt support scrolling vertically");
}
if (ParentScrollRect && !ParentScrollSnap)
{
ParentScrollSnap = ParentScrollRect.GetComponent<ScrollSnapBase>();
}
}
@ -52,7 +61,8 @@ namespace UnityEngine.UI.Extensions
_endDragHandlers = ParentScrollRect.GetComponents<IEndDragHandler>();
}
//IBeginDragHandler
#region DragHandler
public void OnBeginDrag(PointerEventData eventData)
{
//Get the absolute values of the x and y differences so we can see which one is bigger and scroll the other scroll rect accordingly
@ -68,7 +78,7 @@ namespace UnityEngine.UI.Extensions
for (int i = 0, length = _beginDragHandlers.Length; i < length; i++)
{
_beginDragHandlers[i].OnBeginDrag(eventData);
ParentScrollSnapHorizontal.OnBeginDrag(eventData);
if(ParentScrollSnap) ParentScrollSnap.OnBeginDrag(eventData);
}
}
}
@ -80,12 +90,11 @@ namespace UnityEngine.UI.Extensions
for (int i = 0, length = _beginDragHandlers.Length; i < length; i++)
{
_beginDragHandlers[i].OnBeginDrag(eventData);
ParentScrollSnapHorizontal.OnBeginDrag(eventData);
if (ParentScrollSnap) ParentScrollSnap.OnBeginDrag(eventData);
}
}
}
//IEndDragHandler
public void OnEndDrag(PointerEventData eventData)
{
if (scrollOther)
@ -95,12 +104,11 @@ namespace UnityEngine.UI.Extensions
for (int i = 0, length = _endDragHandlers.Length; i < length; i++)
{
_endDragHandlers[i].OnEndDrag(eventData);
ParentScrollSnapHorizontal.OnEndDrag(eventData);
if (ParentScrollSnap) ParentScrollSnap.OnEndDrag(eventData);
}
}
}
//IDragHandler
public void OnDrag(PointerEventData eventData)
{
if (scrollOther)
@ -108,9 +116,11 @@ namespace UnityEngine.UI.Extensions
for (int i = 0, length = _endDragHandlers.Length; i < length; i++)
{
_dragHandlers[i].OnDrag(eventData);
ParentScrollSnapHorizontal.OnDrag(eventData);
if (ParentScrollSnap) ParentScrollSnap.OnDrag(eventData);
}
}
}
#endregion DragHandler
}
}