Make ASCollectionNode's pan gesture customizable (TextureGroup#1457)

* changes done * complete set of uigesturedeleagte methods
hebertialmeida · May 10, 2019 · 68a16b2 · 68a16b2
1 parent b0aabba
commit 68a16b2
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Showing 4 changed files with 67 additions and 3 deletions.
diff --git a/Source/ASCollectionNode.h b/Source/ASCollectionNode.h
@@ -25,7 +25,7 @@ NS_ASSUME_NONNULL_BEGIN
  * ASCollectionNode is a node based class that wraps an ASCollectionView. It can be used
  * as a subnode of another node, and provide room for many (great) features and improvements later on.
  */
-@interface ASCollectionNode : ASDisplayNode <ASRangeControllerUpdateRangeProtocol, ASRangeManagingNode>
+@interface ASCollectionNode : ASDisplayNode <ASRangeControllerUpdateRangeProtocol, ASRangeManagingNode, UIGestureRecognizerDelegate>
 
 - (instancetype)init NS_UNAVAILABLE;
 

diff --git a/Source/ASCollectionNode.mm b/Source/ASCollectionNode.mm
@@ -1040,6 +1040,38 @@ - (void)updateCurrentRangeWithMode:(ASLayoutRangeMode)rangeMode;
   return result;
 }
 
+#pragma mark - UIGestureRecognizerDelegate Methods
+// The value returned below are default implementation of UIKit's UIGestureRecognizerDelegate
+- (BOOL)gestureRecognizerShouldBegin:(UIGestureRecognizer *)gestureRecognizer
+{
+    return YES;
+}
+
+- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldReceiveTouch:(UITouch *)touch
+{
+    return YES;
+}
+
+- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldReceivePress:(UIPress *)press
+{
+    return YES;
+}
+
+- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldRecognizeSimultaneouslyWithGestureRecognizer:(UIGestureRecognizer *)otherGestureRecognizer
+{
+    return NO;
+}
+
+- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldRequireFailureOfGestureRecognizer:(UIGestureRecognizer *)otherGestureRecognizer
+{
+    return NO;
+}
+
+- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldBeRequiredToFailByGestureRecognizer:(UIGestureRecognizer *)otherGestureRecognizer
+{
+    return NO;
+}
+
 #pragma mark - Private methods
 
 - (void)_configureCollectionViewLayout:(UICollectionViewLayout *)layout

diff --git a/Source/ASCollectionView.h b/Source/ASCollectionView.h
@@ -30,7 +30,7 @@ NS_ASSUME_NONNULL_BEGIN
  *
  * @note ASCollectionNode is strongly recommended over ASCollectionView.  This class exists for adoption convenience.
  */
-@interface ASCollectionView : UICollectionView
+@interface ASCollectionView : UICollectionView <UIGestureRecognizerDelegate>
 
 /**
  * Returns the corresponding ASCollectionNode

diff --git a/Source/ASCollectionView.mm b/Source/ASCollectionView.mm
@@ -317,7 +317,8 @@ - (instancetype)_initWithFrame:(CGRect)frame collectionViewLayout:(UICollectionV
   [self registerClass:[_ASCollectionViewCell class] forCellWithReuseIdentifier:kReuseIdentifier];
 
   [self _configureCollectionViewLayout:layout];
-
+
+  self.panGestureRecognizer.delegate = self;
   return self;
 }
 
@@ -2518,4 +2519,35 @@ - (NSArray *)accessibilityElements
   return [super accessibilityElements];
 }
 
+#pragma mark - UIGestureRecognizerDelegate Method
+- (BOOL)gestureRecognizerShouldBegin:(UIGestureRecognizer *)gestureRecognizer
+{
+    return [self.collectionNode gestureRecognizerShouldBegin:gestureRecognizer];
+}
+
+- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldReceiveTouch:(UITouch *)touch
+{
+    return [self.collectionNode gestureRecognizer:gestureRecognizer shouldReceiveTouch:touch];
+}
+
+- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldReceivePress:(UIPress *)press
+{
+    return [self.collectionNode gestureRecognizer:gestureRecognizer shouldReceivePress:press];
+}
+
+- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldRecognizeSimultaneouslyWithGestureRecognizer:(UIGestureRecognizer *)otherGestureRecognizer
+{
+    return [self.collectionNode gestureRecognizer:gestureRecognizer shouldRecognizeSimultaneouslyWithGestureRecognizer:otherGestureRecognizer];
+}
+
+- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldRequireFailureOfGestureRecognizer:(UIGestureRecognizer *)otherGestureRecognizer
+{
+    return [self.collectionNode gestureRecognizer:gestureRecognizer shouldRequireFailureOfGestureRecognizer:otherGestureRecognizer];
+}
+
+- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldBeRequiredToFailByGestureRecognizer:(UIGestureRecognizer *)otherGestureRecognizer
+{
+    return [self.collectionNode gestureRecognizer:gestureRecognizer shouldBeRequiredToFailByGestureRecognizer:otherGestureRecognizer];
+}
+
 @end