Refactor nodeDidRelayoutWithSizeChange: -> nodeDidRelayout:sizeChanged:

AsyncDisplayKit/ASCellNode.h

@@ -15,13 +15,13 @@ typedef NSUInteger ASCellNodeAnimation;
 @protocol ASCellNodeLayoutDelegate <NSObject>
 
 /**
- * Notifies the delegate that the specified cell node has done a relayout
- * that resulted in a change of `calculatedSize`.
+ * Notifies the delegate that the specified cell node has done a relayout.
  * The notification is done on main thread.
  *
  * @param node A node informing the delegate about the relayout.
+ * @param sizeChanged `YES` if the node's `calculatedSize` changed during the relayout, `NO` otherwise.
  */
-- (void)nodeDidRelayoutWithSizeChange:(ASCellNode *)node;
+- (void)nodeDidRelayout:(ASCellNode *)node sizeChanged:(BOOL)sizeChanged;
 @end
 
 /**

AsyncDisplayKit/ASCellNode.m

@@ -56,9 +56,10 @@
   CGSize oldSize = self.calculatedSize;
   [super setNeedsLayout];
 
-  if (_layoutDelegate != nil && !CGSizeEqualToSize(oldSize, self.calculatedSize)) {
+  if (_layoutDelegate != nil) {
+    BOOL sizeChanged = !CGSizeEqualToSize(oldSize, self.calculatedSize);
     ASPerformBlockOnMainThread(^{
-      [_layoutDelegate nodeDidRelayoutWithSizeChange:self];
+      [_layoutDelegate nodeDidRelayout:self sizeChanged:sizeChanged];
     });
   }
 }

AsyncDisplayKit/ASCollectionView.mm

@@ -913,11 +913,11 @@ static BOOL _isInterceptedSelector(SEL sel)
 
 #pragma mark - ASCellNodeDelegate
 
-- (void)nodeDidRelayoutWithSizeChange:(ASCellNode *)node
+- (void)nodeDidRelayout:(ASCellNode *)node sizeChanged:(BOOL)sizeChanged
 {
   ASDisplayNodeAssertMainThread();
 
-  if (_queuedNodeSizeUpdate) {
+  if (!sizeChanged || _queuedNodeSizeUpdate) {
     return;
   }
 

AsyncDisplayKit/ASTableView.mm

@@ -910,11 +910,11 @@ static BOOL _isInterceptedSelector(SEL sel)
 
 #pragma mark - ASCellNodeLayoutDelegate
 
-- (void)nodeDidRelayoutWithSizeChange:(ASCellNode *)node
+- (void)nodeDidRelayout:(ASCellNode *)node sizeChanged:(BOOL)sizeChanged
 {
   ASDisplayNodeAssertMainThread();
 
-  if (_queuedNodeHeightUpdate) {
+  if (!sizeChanged || _queuedNodeHeightUpdate) {
     return;
   }