transmission/macosx/FileListNode.m

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/******************************************************************************
2012-01-14 17:12:04 +00:00
* Copyright (c) 2008-2012 Transmission authors and contributors
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*****************************************************************************/
#import "FileListNode.h"
@interface FileListNode (Private)
- (id) initWithFolder: (BOOL) isFolder name: (NSString *) name path: (NSString *) path torrent: (Torrent *) torrent;
@end
@implementation FileListNode
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{
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NSMutableIndexSet * _indexes;
NSImage * _icon;
NSMutableArray * _children;
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}
- (id) initWithFolderName: (NSString *) name path: (NSString *) path torrent: (Torrent *) torrent
{
if ((self = [self initWithFolder: YES name: name path: path torrent: torrent]))
{
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_children = [[NSMutableArray alloc] init];
_size = 0;
}
return self;
}
- (id) initWithFileName: (NSString *) name path: (NSString *) path size: (uint64_t) size index: (NSUInteger) index torrent: (Torrent *) torrent
{
if ((self = [self initWithFolder: NO name: name path: path torrent: torrent]))
{
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_size = size;
[_indexes addIndex: index];
}
return self;
}
- (void) insertChild: (FileListNode *) child
{
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NSAssert(_isFolder, @"method can only be invoked on folders");
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[_children addObject: child];
}
- (void) insertIndex: (NSUInteger) index withSize: (uint64_t) size
{
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NSAssert(_isFolder, @"method can only be invoked on folders");
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[_indexes addIndex: index];
_size += size;
}
- (id) copyWithZone: (NSZone *) zone
{
//this object is essentially immutable after initial setup
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return self;
}
- (NSString *) description
{
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if (!_isFolder)
return [NSString stringWithFormat: @"%@ (%ld)", _name, [_indexes firstIndex]];
else
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return [NSString stringWithFormat: @"%@ (folder: %@)", _name, _indexes];
}
- (NSImage *) icon
{
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if (!_icon)
_icon = [[NSWorkspace sharedWorkspace] iconForFileType: _isFolder ? NSFileTypeForHFSTypeCode(kGenericFolderIcon)
: [_name pathExtension]];
return _icon;
}
- (NSMutableArray *) children
{
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NSAssert(_isFolder, @"method can only be invoked on folders");
return _children;
}
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- (NSIndexSet *) indexes
{
return _indexes;
}
- (BOOL) updateFromOldName: (NSString *) oldName toNewName: (NSString *) newName inPath: (NSString *) path
{
NSParameterAssert(oldName != nil);
NSParameterAssert(newName != nil);
NSParameterAssert(path != nil);
NSArray * lookupPathComponents = [path pathComponents];
NSArray * thesePathComponents = [self.path pathComponents];
if ([lookupPathComponents isEqualToArray: thesePathComponents]) //this node represents what's being renamed
{
if ([oldName isEqualToString: self.name])
{
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_name = [newName copy];
_icon = nil;
return YES;
}
}
else if ([lookupPathComponents count] < [thesePathComponents count]) //what's being renamed is part of this node's path
{
lookupPathComponents = [lookupPathComponents arrayByAddingObject: oldName];
const BOOL allSame = NSNotFound == [lookupPathComponents indexOfObjectWithOptions: NSEnumerationConcurrent passingTest: ^BOOL(NSString * name, NSUInteger idx, BOOL * stop) {
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return ![name isEqualToString: thesePathComponents[idx]];
}];
if (allSame)
{
NSString * oldPathPrefix = [path stringByAppendingPathComponent: oldName];
NSString * newPathPrefix = [path stringByAppendingPathComponent: newName];
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_path = [_path stringByReplacingCharactersInRange: NSMakeRange(0, [oldPathPrefix length]) withString: newPathPrefix];
return YES;
}
}
return NO;
}
@end
@implementation FileListNode (Private)
- (id) initWithFolder: (BOOL) isFolder name: (NSString *) name path: (NSString *) path torrent: (Torrent *) torrent
{
if ((self = [super init]))
{
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_isFolder = isFolder;
_name = [name copy];
_path = [path copy];
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_indexes = [[NSMutableIndexSet alloc] init];
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_torrent = torrent;
}
return self;
}
@end