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Consolidate methods for batch fetching in ASTableView

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This commit is contained in:
Michael Schneider
2016-04-08 14:56:09 -07:00
parent f92e7d5a29
commit ab8928c140
1 changed files with 9 additions and 13 deletions
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22
AsyncDisplayKit/ASTableView.mm
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@@ -700,20 +700,16 @@ static NSString * const kCellReuseIdentifier = @"_ASTableViewCell";
}
#pragma mark -
#pragma mark Batch Fetching
#pragma mark - Batch Fetching
- (void)_checkForBatchFetching
{
// Dragging will be handled in scrollViewWillEndDragging:withVelocity:targetContentOffset:
if ([self isDragging] || [self isTracking] || ![self _shouldBatchFetch]) {
if ([self isDragging] || [self isTracking]) {
return;
}
// Check if we should batch fetch
if (ASDisplayShouldFetchBatchForContext(_batchContext, [self scrollableDirections], self.bounds, self.contentSize, self.contentOffset, _leadingScreensForBatching)) {
[self _beginBatchFetching];
}
[self _beginBatchFetchingIfNeededForScrollDirection:[self scrollableDirections] contentOffset:self.contentOffset];
}
- (void)scrollViewWillEndDragging:(UIScrollView *)scrollView withVelocity:(CGPoint)velocity targetContentOffset:(inout CGPoint *)targetContentOffset
@@ -724,7 +720,8 @@ static NSString * const kCellReuseIdentifier = @"_ASTableViewCell";
);
if (targetContentOffset != NULL) {
[self _handleBatchFetchScrollingToOffset:*targetContentOffset];
ASDisplayNodeAssert(_batchContext != nil, @"Batch context should exist");
[self _beginBatchFetchingIfNeededForScrollDirection:[self scrollDirection] contentOffset:*targetContentOffset];
}
if ([_asyncDelegate respondsToSelector:@selector(scrollViewWillEndDragging:withVelocity:targetContentOffset:)]) {
@@ -732,15 +729,14 @@ static NSString * const kCellReuseIdentifier = @"_ASTableViewCell";
}
}
- (void)_handleBatchFetchScrollingToOffset:(CGPoint)targetOffset
- (void)_beginBatchFetchingIfNeededForScrollDirection:(ASScrollDirection)scrollDirection contentOffset:(CGPoint)contentOffset
{
ASDisplayNodeAssert(_batchContext != nil, @"Batch context should exist");
if (![self _shouldBatchFetch]) {
return;
}
if (ASDisplayShouldFetchBatchForContext(_batchContext, [self scrollDirection], self.bounds, self.contentSize, targetOffset, _leadingScreensForBatching)) {
// Check if we should batch fetch
if (ASDisplayShouldFetchBatchForContext(_batchContext, [self scrollableDirections], self.bounds, self.contentSize, self.contentOffset, _leadingScreensForBatching)) {
[self _beginBatchFetching];
}
}