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short-circuit editing calls after the asyncDataSource has been set to nil (ASCollectionView)

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This commit is contained in:
Ethan Nagel
2015-07-16 20:26:45 -07:00
parent 9762e7cfe6
commit c14ecd7e99
1 changed files with 24 additions and 0 deletions
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24
AsyncDisplayKit/ASCollectionView.mm
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@@ -543,6 +543,13 @@ static BOOL _isInterceptedSelector(SEL sel)
- (void)rangeControllerEndUpdates:(ASRangeController *)rangeController completion:(void (^)(BOOL))completion {
ASDisplayNodeAssertMainThread();
if (!self.asyncDataSource) {
if (completion) {
completion(NO);
}
return; // if the asyncDataSource has become invalid while we are processing, ignore this request to avoid crashes
}
[super performBatchUpdates:^{
[_batchUpdateBlocks enumerateObjectsUsingBlock:^(dispatch_block_t block, NSUInteger idx, BOOL *stop) {
block();
@@ -577,6 +584,11 @@ static BOOL _isInterceptedSelector(SEL sel)
- (void)rangeController:(ASRangeController *)rangeController didInsertNodesAtIndexPaths:(NSArray *)indexPaths withAnimationOptions:(ASDataControllerAnimationOptions)animationOptions
{
ASDisplayNodeAssertMainThread();
if (!self.asyncDataSource) {
return; // if the asyncDataSource has become invalid while we are processing, ignore this request to avoid crashes
}
if (_performingBatchUpdates) {
[_batchUpdateBlocks addObject:^{
[super insertItemsAtIndexPaths:indexPaths];
@@ -592,6 +604,10 @@ static BOOL _isInterceptedSelector(SEL sel)
{
ASDisplayNodeAssertMainThread();
if (!self.asyncDataSource) {
return; // if the asyncDataSource has become invalid while we are processing, ignore this request to avoid crashes
}
if (_performingBatchUpdates) {
[_batchUpdateBlocks addObject:^{
[super deleteItemsAtIndexPaths:indexPaths];
@@ -607,6 +623,10 @@ static BOOL _isInterceptedSelector(SEL sel)
{
ASDisplayNodeAssertMainThread();
if (!self.asyncDataSource) {
return; // if the asyncDataSource has become invalid while we are processing, ignore this request to avoid crashes
}
if (_performingBatchUpdates) {
[_batchUpdateBlocks addObject:^{
[super insertSections:indexSet];
@@ -622,6 +642,10 @@ static BOOL _isInterceptedSelector(SEL sel)
{
ASDisplayNodeAssertMainThread();
if (!self.asyncDataSource) {
return; // if the asyncDataSource has become invalid while we are processing, ignore this request to avoid crashes
}
if (_performingBatchUpdates) {
[_batchUpdateBlocks addObject:^{
[super deleteSections:indexSet];