cad53fcf69
New KRVector3 math functions --HG-- extra : convert_revision : svn%3A7752d6cf-9f14-4ad2-affc-04f1e67b81a5/trunk%4058
109 lines
2.9 KiB
Objective-C
109 lines
2.9 KiB
Objective-C
//
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// KRWBFileSystemItem.m
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// KRWorldBuilder
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//
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// Created by Kearwood Gilbert on 12-05-12.
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// Copyright (c) 2012 Kearwood Software. All rights reserved.
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//
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#import "KRWBFileSystemItem.h"
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@implementation KRWBFileSystemItem
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static KRWBFileSystemItem *rootItem = nil;
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static NSMutableArray *leafNode = nil;
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+ (void)initialize {
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if (self == [KRWBFileSystemItem class]) {
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leafNode = [[NSMutableArray alloc] init];
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}
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}
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- (id)initWithPath:(NSURL *)url parent:(KRWBFileSystemItem *)parentItem {
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self = [super init];
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if (self) {
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fullPath = url;
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parent = parentItem;
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}
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return self;
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}
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+ (KRWBFileSystemItem *)rootItem {
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if (rootItem == nil) {
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rootItem = [[KRWBFileSystemItem alloc] initWithPath:[NSURL URLWithString:@"file://localhost/"] parent:nil];
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}
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return rootItem;
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}
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// Creates, caches, and returns the array of children
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// Loads children incrementally
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- (NSArray *)children {
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if (children == nil) {
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NSFileManager *fileManager = [NSFileManager defaultManager];
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NSError *error;
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BOOL valid = [fullPath checkResourceIsReachableAndReturnError:NULL];
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NSNumber *isDirectory = nil;
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if (! [fullPath getResourceValue:&isDirectory forKey:NSURLIsDirectoryKey error:&error]) {
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// handle error
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}
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BOOL isDir = [isDirectory boolValue];
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if (valid && isDir) {
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NSArray *keys = [NSArray arrayWithObject:NSURLIsDirectoryKey];
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NSArray *child_urls = [fileManager contentsOfDirectoryAtURL:fullPath includingPropertiesForKeys:keys options: NSDirectoryEnumerationSkipsHiddenFiles error:&error];
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/*
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NSDirectoryEnumerator *enumerator = [fileManager
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enumeratorAtURL:fullPath
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includingPropertiesForKeys:keys
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options:0
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errorHandler:^(NSURL *url, NSError *error) {
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// Handle the error.
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// Return YES if the enumeration should continue after the error.
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return YES;
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}];
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*/
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children = [[NSMutableArray alloc] init];
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for (NSURL *url in child_urls) {
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KRWBFileSystemItem *newChild = [[KRWBFileSystemItem alloc]
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initWithPath:url parent:self];
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[children addObject:newChild];
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}
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} else {
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children = leafNode;
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}
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}
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return children;
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}
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- (NSString *)relativePath {
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return [[fullPath lastPathComponent] copy];
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}
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- (KRWBFileSystemItem *)childAtIndex:(NSUInteger)n {
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return [[self children] objectAtIndex:n];
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}
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- (NSInteger)numberOfChildren {
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NSArray *tmp = [self children];
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return (tmp == leafNode) ? (-1) : [tmp count];
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}
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- (void)dealloc {
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}
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@end |