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Merge pull request #1292 from nguyenhuy/visibility_improvements

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[ASCellNode] Update visibility API to support new event types for initial visibility & invisibility (caused by VC transitions, etc)
This commit is contained in:
appleguy
2016-03-02 19:30:31 -08:00
parent a06c67f027 1dffc20e4d
commit e82d1408d2
4 changed files with 51 additions and 11 deletions
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18
AsyncDisplayKit/ASTableView.mm
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@@ -597,8 +597,9 @@ static NSString * const kCellReuseIdentifier = @"_ASTableViewCell";
- (void)scrollViewDidScroll:(UIScrollView *)scrollView
{
for (_ASTableViewCell *tableCell in _cellsForVisibilityUpdates) {
ASCellNode *node = [tableCell node];
[node visibleNodeDidScroll:scrollView withCellFrame:tableCell.frame];
[[tableCell node] cellNodeVisibilityEvent:ASCellNodeVisibilityEventVisibleRectChanged
inScrollView:scrollView
withCellFrame:tableCell.frame];
}
if (_asyncDelegateImplementsScrollviewDidScroll) {
[_asyncDelegate scrollViewDidScroll:scrollView];
@@ -617,8 +618,11 @@ static NSString * const kCellReuseIdentifier = @"_ASTableViewCell";
ASCellNode *cellNode = [cell node];
if (ASSubclassOverridesSelector([ASCellNode class], [cellNode class], @selector(visibleNodeDidScroll:withCellFrame:))) {
if (ASSubclassOverridesSelector([ASCellNode class], [cellNode class], @selector(cellNodeVisibilityEvent:inScrollView:withCellFrame:))) {
[_cellsForVisibilityUpdates addObject:cell];
[cellNode cellNodeVisibilityEvent:ASCellNodeVisibilityEventVisible
inScrollView:tableView
withCellFrame:cell.frame];
}
if (cellNode.neverShowPlaceholders) {
[cellNode recursivelyEnsureDisplaySynchronously:YES];
@@ -639,7 +643,13 @@ static NSString * const kCellReuseIdentifier = @"_ASTableViewCell";
[_asyncDelegate tableView:self didEndDisplayingNode:node forRowAtIndexPath:indexPath];
}
[_cellsForVisibilityUpdates removeObject:cell];
if ([_cellsForVisibilityUpdates containsObject:cell]) {
[_cellsForVisibilityUpdates removeObject:cell];
ASCellNode *node = ((_ASTableViewCell *)cell).node;
[node cellNodeVisibilityEvent:ASCellNodeVisibilityEventInvisible
inScrollView:tableView
withCellFrame:cell.frame];
}
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wdeprecated-declarations"