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Adds check for nodes who should rasterize descendants and opts to recurse down the subnode hierarchy in _recursiveSetPreventOrCancelDisplay.

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This commit is contained in:
Rene Cacheaux 2014-10-12 09:02:59 -05:00
parent 8499bac020
commit 0a6e36a239
1 changed files with 2 additions and 2 deletions
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4
AsyncDisplayKit/ASDisplayNode.mm
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@ -1290,13 +1290,13 @@ static void _recursiveSetPreventOrCancelDisplay(ASDisplayNode *node, CALayer *la
// Set the flag on the node. If this is a pure layer (no node) then this has no effect (plain layers don't support preventing/cancelling display). // Set the flag on the node. If this is a pure layer (no node) then this has no effect (plain layers don't support preventing/cancelling display).
node.preventOrCancelDisplay = flag; node.preventOrCancelDisplay = flag;
if (layer) { if (layer && !node.shouldRasterizeDescendants) {
// If there is a layer, recurse down the layer hierarchy to set the flag on descendants. This will cover both layer-based and node-based children. // If there is a layer, recurse down the layer hierarchy to set the flag on descendants. This will cover both layer-based and node-based children.
for (CALayer *sublayer in layer.sublayers) { for (CALayer *sublayer in layer.sublayers) {
_recursiveSetPreventOrCancelDisplay(nil, sublayer, flag); _recursiveSetPreventOrCancelDisplay(nil, sublayer, flag);
} }
} else { } else {
// If there is no layer (view not loaded yet), recurse down the subnode hierarchy to set the flag on descendants. This covers only node-based children, but for a node whose view is not loaded it can't possibly have nodeless children. // If there is no layer (view not loaded yet) or this node rasterizes descendants (there won't be a layer tree to traverse), recurse down the subnode hierarchy to set the flag on descendants. This covers only node-based children, but for a node whose view is not loaded it can't possibly have nodeless children.
for (ASDisplayNode *subnode in node.subnodes) { for (ASDisplayNode *subnode in node.subnodes) {
_recursiveSetPreventOrCancelDisplay(subnode, nil, flag); _recursiveSetPreventOrCancelDisplay(subnode, nil, flag);
} }