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Add setNeedsDataFetch method to queue off screen fetchData calls

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This commit is contained in:
Levi McCallum
2016-01-27 14:52:37 -08:00
parent f696eb7476
commit ec7a3599bd
4 changed files with 48 additions and 3 deletions
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14
AsyncDisplayKit/ASDisplayNode.mm
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@@ -1727,6 +1727,15 @@ static BOOL ShouldUseNewRenderingRange = YES;
// subclass override
}
- (void)setNeedsDataFetch
{
if (ASInterfaceStateIncludesFetchData(_interfaceState)) {
[self fetchData];
} else {
_needsDataFetch = YES;
}
}
// TODO: Replace this with ASDisplayNodePerformBlockOnEveryNode or enterInterfaceState:
- (void)recursivelyFetchData
{
@@ -1793,9 +1802,10 @@ static BOOL ShouldUseNewRenderingRange = YES;
BOOL nowFetchData = ASInterfaceStateIncludesFetchData(newState);
BOOL wasFetchData = ASInterfaceStateIncludesFetchData(oldState);
if (nowFetchData != wasFetchData) {
if (nowFetchData) {
if (nowFetchData != wasFetchData || _needsDataFetch) {
if (nowFetchData || _needsDataFetch) {
[self fetchData];
_needsDataFetch = NO;
} else {
if ([self supportsRangeManagedInterfaceState]) {
[self clearFetchedData];