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[ASTableView] Add constrainedSizeForRowAtIndexPath: to control row heights from delegate (#1769)

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* [ASTableView] constrainedSizeForRowAtIndexPath

* Quick fix to header file

* Switch to Delegate from DataSource.

* Update testing variables to reflect switch to delegate
This commit is contained in:
Hannah Troisi
2016-06-26 23:09:53 -07:00
committed by appleguy
parent ae87717263
commit db04f4b851
3 changed files with 67 additions and 3 deletions
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17
AsyncDisplayKit/ASTableView.mm
View File

@@ -28,6 +28,7 @@
#import <CoreFoundation/CoreFoundation.h>
static const ASSizeRange kInvalidSizeRange = {CGSizeZero, CGSizeZero};
static NSString * const kCellReuseIdentifier = @"_ASTableViewCell";
//#define LOG(...) NSLog(__VA_ARGS__)
@@ -125,6 +126,7 @@ static NSString * const kCellReuseIdentifier = @"_ASTableViewCell";
unsigned int asyncDelegateScrollViewWillEndDraggingWithVelocityTargetContentOffset:1;
unsigned int asyncDelegateTableViewWillBeginBatchFetchWithContext:1;
unsigned int asyncDelegateShouldBatchFetchForTableView:1;
unsigned int asyncDelegateTableViewConstrainedSizeForRowAtIndexPath:1;
} _asyncDelegateFlags;
struct {
@@ -316,6 +318,8 @@ static NSString * const kCellReuseIdentifier = @"_ASTableViewCell";
_asyncDelegateFlags.asyncDelegateShouldBatchFetchForTableView = [_asyncDelegate respondsToSelector:@selector(shouldBatchFetchForTableView:)];
_asyncDelegateFlags.asyncDelegateScrollViewWillBeginDragging = [_asyncDelegate respondsToSelector:@selector(scrollViewWillBeginDragging:)];
_asyncDelegateFlags.asyncDelegateScrollViewDidEndDragging = [_asyncDelegate respondsToSelector:@selector(scrollViewDidEndDragging:willDecelerate:)];
_asyncDelegateFlags.asyncDelegateTableViewConstrainedSizeForRowAtIndexPath = [_asyncDelegate respondsToSelector:@selector(tableView:constrainedSizeForRowAtIndexPath:)];
}
super.delegate = (id<UITableViewDelegate>)_proxyDelegate;
@@ -1069,8 +1073,17 @@ static NSString * const kCellReuseIdentifier = @"_ASTableViewCell";
- (ASSizeRange)dataController:(ASDataController *)dataController constrainedSizeForNodeAtIndexPath:(NSIndexPath *)indexPath
{
return ASSizeRangeMake(CGSizeMake(_nodesConstrainedWidth, 0),
CGSizeMake(_nodesConstrainedWidth, FLT_MAX));
ASSizeRange constrainedSize = kInvalidSizeRange;
if (_asyncDelegateFlags.asyncDelegateTableViewConstrainedSizeForRowAtIndexPath) {
ASSizeRange delegateConstrainedSize = [_asyncDelegate tableView:self constrainedSizeForRowAtIndexPath:indexPath];
// ignore widths in the returned size range (for TableView)
constrainedSize = ASSizeRangeMake(CGSizeMake(_nodesConstrainedWidth, delegateConstrainedSize.min.height),
CGSizeMake(_nodesConstrainedWidth, delegateConstrainedSize.max.height));
} else {
constrainedSize = ASSizeRangeMake(CGSizeMake(_nodesConstrainedWidth, 0),
CGSizeMake(_nodesConstrainedWidth, FLT_MAX));
}
return constrainedSize;
}
- (NSUInteger)dataController:(ASDataController *)dataController rowsInSection:(NSUInteger)section