Passthrough pagingEnabled for ASCollectionNode / ASTableNode

TextureGroup · Apr 24, 2019 · 1caf792 · 1caf792
1 parent bb6c89e
commit 1caf792
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Showing 4 changed files with 60 additions and 1 deletion.
diff --git a/Source/ASCollectionNode.h b/Source/ASCollectionNode.h
@@ -125,6 +125,12 @@ NS_ASSUME_NONNULL_BEGIN
  */
 @property (nonatomic) BOOL showsHorizontalScrollIndicator;
 
+/**
+ * A Boolean value that determines whether paging is enabled for the scroll view.
+ * The default value of this property is NO.
+ */
+@property (nonatomic, getter=isPagingEnabled) BOOL pagingEnabled;
+
 /**
  * The layout used to organize the node's items.
  *

diff --git a/Source/ASCollectionNode.mm b/Source/ASCollectionNode.mm
@@ -52,6 +52,7 @@ @interface _ASCollectionPendingState : NSObject {
 @property (nonatomic) BOOL animatesContentOffset;
 @property (nonatomic) BOOL showsVerticalScrollIndicator;
 @property (nonatomic) BOOL showsHorizontalScrollIndicator;
+@property (nonatomic) BOOL pagingEnabled;
 @end
 
 @implementation _ASCollectionPendingState
@@ -72,6 +73,7 @@ - (instancetype)init
     _animatesContentOffset = NO;
     _showsVerticalScrollIndicator = YES;
     _showsHorizontalScrollIndicator = YES;
+    _pagingEnabled = NO;
   }
   return self;
 }
@@ -197,6 +199,7 @@ - (void)didLoad
     view.layoutInspector                = pendingState.layoutInspector;
     view.showsVerticalScrollIndicator   = pendingState.showsVerticalScrollIndicator;
     view.showsHorizontalScrollIndicator = pendingState.showsHorizontalScrollIndicator;
+    view.pagingEnabled                  = pendingState.pagingEnabled;
 
     // Only apply these flags if they're enabled; the view might come with them turned on.
     if (pendingState.alwaysBounceVertical) {
@@ -528,6 +531,26 @@ - (BOOL)showsHorizontalScrollIndicator
   }
 }
 
+- (void)setPagingEnabled:(BOOL)pagingEnabled
+{
+  if ([self pendingState]) {
+    _pendingState.pagingEnabled = pagingEnabled;
+  } else {
+    ASDisplayNodeAssert([self isNodeLoaded],
+                        @"ASCollectionNode should be loaded if pendingState doesn't exist");
+    self.view.pagingEnabled = pagingEnabled;
+  }
+}
+
+- (BOOL)isPagingEnabled
+{
+  if ([self pendingState]) {
+    return _pendingState.pagingEnabled;
+  } else {
+    return self.view.isPagingEnabled;
+  }
+}
+
 - (void)setCollectionViewLayout:(UICollectionViewLayout *)layout
 {
   if ([self pendingState]) {

diff --git a/Source/ASTableNode.h b/Source/ASTableNode.h
@@ -77,6 +77,12 @@ NS_ASSUME_NONNULL_BEGIN
  */
 @property (nonatomic) BOOL automaticallyAdjustsContentOffset;
 
+/**
+ * A Boolean value that determines whether paging is enabled for the scroll view.
+ * The default value of this property is NO.
+ */
+@property (nonatomic, getter=isPagingEnabled) BOOL pagingEnabled;
+
 /*
  * A Boolean value that determines whether users can select a row.
  * If the value of this property is YES (the default), users can select rows. If you set it to NO, they cannot select rows. Setting this property affects cell selection only when the table view is not in editing mode. If you want to restrict selection of cells in editing mode, use `allowsSelectionDuringEditing`.

diff --git a/Source/ASTableNode.mm b/Source/ASTableNode.mm
@@ -43,7 +43,7 @@ @interface _ASTablePendingState : NSObject {
 @property (nonatomic) CGPoint contentOffset;
 @property (nonatomic) BOOL animatesContentOffset;
 @property (nonatomic) BOOL automaticallyAdjustsContentOffset;
-
+@property (nonatomic) BOOL pagingEnabled;
 @end
 
 @implementation _ASTablePendingState
@@ -66,6 +66,7 @@ - (instancetype)init
     _contentOffset = CGPointZero;
     _animatesContentOffset = NO;
     _automaticallyAdjustsContentOffset = NO;
+    _pagingEnabled = NO;
   }
   return self;
 }
@@ -164,6 +165,7 @@ - (void)didLoad
     view.allowsMultipleSelection              = pendingState.allowsMultipleSelection;
     view.allowsMultipleSelectionDuringEditing = pendingState.allowsMultipleSelectionDuringEditing;
     view.automaticallyAdjustsContentOffset    = pendingState.automaticallyAdjustsContentOffset;
+    view.pagingEnabled                        = pendingState.pagingEnabled;
 
     UIEdgeInsets contentInset = pendingState.contentInset;
     if (!UIEdgeInsetsEqualToEdgeInsets(contentInset, UIEdgeInsetsZero)) {
@@ -366,6 +368,28 @@ - (BOOL)automaticallyAdjustsContentOffset
   }
 }
 
+- (void)setPagingEnabled:(BOOL)pagingEnabled
+{
+  _ASTablePendingState *pendingState = self.pendingState;
+  if (pendingState) {
+    pendingState.pagingEnabled = pagingEnabled;
+  } else {
+    ASDisplayNodeAssert([self isNodeLoaded],
+                        @"ASCollectionNode should be loaded if pendingState doesn't exist");
+    self.view.pagingEnabled = pagingEnabled;
+  }
+}
+
+- (BOOL)isPagingEnabled
+{
+  _ASTablePendingState *pendingState = self.pendingState;
+  if (pendingState) {
+    return pendingState.pagingEnabled;
+  } else {
+    return self.view.isPagingEnabled;
+  }
+}
+
 - (void)setDelegate:(id <ASTableDelegate>)delegate
 {
   if ([self pendingState]) {