transmission/macosx/FileListNode.m

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/******************************************************************************
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* 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
#warning remove ivars in header when 64-bit only (or it compiles in 32-bit mode)
@synthesize name = fName;
@synthesize path = fPath;
@synthesize torrent = fTorrent;
@synthesize size = fSize;
@synthesize icon = fIcon;
@synthesize isFolder = fIsFolder;
@synthesize indexes = fIndexes;
@synthesize children = fChildren;
- (id) initWithFolderName: (NSString *) name path: (NSString *) path torrent: (Torrent *) torrent
{
if ((self = [self initWithFolder: YES name: name path: path torrent: torrent]))
{
fChildren = [[NSMutableArray alloc] init];
fSize = 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]))
{
fSize = size;
[fIndexes addIndex: index];
}
return self;
}
- (void) insertChild: (FileListNode *) child
{
NSAssert(fIsFolder, @"method can only be invoked on folders");
[fChildren addObject: child];
}
- (void) insertIndex: (NSUInteger) index withSize: (uint64_t) size
{
NSAssert(fIsFolder, @"method can only be invoked on folders");
[fIndexes addIndex: index];
fSize += size;
}
- (id) copyWithZone: (NSZone *) zone
{
//this object is essentially immutable after initial setup
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return self;
}
- (NSString *) description
{
if (!fIsFolder)
return [NSString stringWithFormat: @"%@ (%ld)", fName, [fIndexes firstIndex]];
else
return [NSString stringWithFormat: @"%@ (folder: %@)", fName, fIndexes];
}
- (NSImage *) icon
{
if (!fIcon)
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fIcon = [[NSWorkspace sharedWorkspace] iconForFileType: fIsFolder ? NSFileTypeForHFSTypeCode(kGenericFolderIcon)
: [fName pathExtension]];
return fIcon;
}
- (NSMutableArray *) children
{
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NSAssert(fIsFolder, @"method can only be invoked on folders");
return fChildren;
}
- (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])
{
fName = [newName copy];
fIcon = 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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fPath = [fPath 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]))
{
fIsFolder = isFolder;
fName = [name copy];
fPath = [path copy];
fIndexes = [[NSMutableIndexSet alloc] init];
fTorrent = torrent;
}
return self;
}
@end