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Add code to determine if a node has children and the number if the count key is not specified

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Gregory John Casamento 2024-06-30 21:58:37 -04:00
parent ff97a5bbe2
commit 6b2bddab4c
1 changed files with 19 additions and 4 deletions
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23
Source/NSOutlineView.m
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@ -2070,15 +2070,30 @@ Also returns the child index relative to this parent. */
}
else
{
/* Per the documentation in NSTreeController, we can determine everything
* from whether there are children present on a given node. See
* the documentation for NSTreeController for more info.
*/
if ([self isExpandable: startitem] // leaf == NO
&& [self isItemExpanded: startitem])
{
NSString *childrenKeyPath = [tc childrenKeyPath];
NSString *countKeyPath = [tc countKeyPath];
NSNumber *countValue = [sitem valueForKeyPath: countKeyPath];
num = [countValue integerValue];
children = [sitem valueForKeyPath: childrenKeyPath];
if (childrenKeyPath != nil)
{
NSString *countKeyPath = [tc countKeyPath];
children = [sitem valueForKeyPath: childrenKeyPath];
if (countKeyPath == nil)
{
num = [children count]; // get the count directly...
}
else
{
NSNumber *countValue = [sitem valueForKeyPath: countKeyPath];
num = [countValue integerValue];
}
}
}
}