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Remove "working range" from flow layout

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This is a step towards a preloading range. We first want to migrate towards arbitrary ranges instead of being coupled to the notion of a single "working range".
This commit is contained in:
Ryan Nystrom
2015-01-30 11:57:57 -08:00
parent 9477114c86
commit 43be3294bc
3 changed files with 13 additions and 14 deletions
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14
AsyncDisplayKit/Details/ASFlowLayoutController.mm
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@@ -16,8 +16,8 @@ static const CGFloat kASFlowLayoutControllerRefreshingThreshold = 0.3;
std::pair<int, int> _visibleRangeStartPos;
std::pair<int, int> _visibleRangeEndPos;
std::pair<int, int> _workingRangeStartPos;
std::pair<int, int> _workingRangeEndPos;
std::pair<int, int> _rangeStartPos;
std::pair<int, int> _rangeEndPos;
}
@end
@@ -74,7 +74,7 @@ static const CGFloat kASFlowLayoutControllerRefreshingThreshold = 0.3;
}];
}
- (BOOL)shouldUpdateWorkingRangesForVisibleIndexPath:(NSArray *)indexPaths
- (BOOL)shouldUpdateForVisibleIndexPath:(NSArray *)indexPaths
viewportSize:(CGSize)viewportSize {
if (!indexPaths.count) {
return NO;
@@ -83,12 +83,12 @@ static const CGFloat kASFlowLayoutControllerRefreshingThreshold = 0.3;
std::pair<int, int> startPos, endPos;
ASFindIndexPathRange(indexPaths, startPos, endPos);
if (_workingRangeStartPos >= startPos || _workingRangeEndPos <= endPos) {
if (_rangeStartPos >= startPos || _rangeEndPos <= endPos) {
return YES;
}
return ASFlowLayoutDistance(startPos, _visibleRangeStartPos, _nodeSizes) > ASFlowLayoutDistance(_visibleRangeStartPos, _workingRangeStartPos, _nodeSizes) * kASFlowLayoutControllerRefreshingThreshold ||
ASFlowLayoutDistance(endPos, _visibleRangeEndPos, _nodeSizes) > ASFlowLayoutDistance(_visibleRangeEndPos, _workingRangeEndPos, _nodeSizes) * kASFlowLayoutControllerRefreshingThreshold;
return ASFlowLayoutDistance(startPos, _visibleRangeStartPos, _nodeSizes) > ASFlowLayoutDistance(_visibleRangeStartPos, _rangeStartPos, _nodeSizes) * kASFlowLayoutControllerRefreshingThreshold ||
ASFlowLayoutDistance(endPos, _visibleRangeEndPos, _nodeSizes) > ASFlowLayoutDistance(_visibleRangeEndPos, _rangeEndPos, _nodeSizes) * kASFlowLayoutControllerRefreshingThreshold;
}
- (void)setVisibleNodeIndexPaths:(NSArray *)indexPaths {
@@ -98,7 +98,7 @@ static const CGFloat kASFlowLayoutControllerRefreshingThreshold = 0.3;
/**
* IndexPath array for the element in the working range.
*/
- (NSSet *)workingRangeIndexPathsForScrolling:(enum ASScrollDirection)scrollDirection
- (NSSet *)indexPathsForScrolling:(enum ASScrollDirection)scrollDirection
viewportSize:(CGSize)viewportSize {
std::pair<int, int> startIter, endIter;