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Add OakFileManager
This is to be used with file actions done from the UI: Actions are undoable, proper dialogs will be shown for errors or to confirm permanent deletes on volumes without a trashcan (closes #589). Interface sounds will also be played (when moving, trashing, and duplicating items). I decided not to use the asynchronous file system methods that NSWorkspace offer. Mainly because they can only be used for the initial operation, not during replay, as performing asynchronous operations during replay may cause issues if user moves quickly between items (something that seems to be an actual problem for Finder). The problem though only exist as long as we rely on NSUndoManager to manage the process. Presently there is no API for batch operations, which leads to suboptimal action titles when performing multiple file system operations in the same undo group.
This commit is contained in:
Allan Odgaard
12
Frameworks/OakAppKit/src/OakFileManager.h
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12
Frameworks/OakAppKit/src/OakFileManager.h
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#import <oak/misc.h>
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PUBLIC @interface OakFileManager : NSObject
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+ (OakFileManager*)sharedInstance;
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- (NSURL*)createUntitledDirectoryAtURL:(NSURL*)anURL window:(NSWindow*)window;
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- (NSURL*)createDuplicateOfURL:(NSURL*)srcURL window:(NSWindow*)window;
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- (void)createSymbolicLinkAtURL:(NSURL*)anURL withDestinationURL:(NSURL*)dstURL window:(NSWindow*)window;
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- (BOOL)renameItemAtURL:(NSURL*)srcURL toURL:(NSURL*)dstURL window:(NSWindow*)window;
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- (void)copyItemAtURL:(NSURL*)srcURL toURL:(NSURL*)dstURL window:(NSWindow*)window;
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- (void)moveItemAtURL:(NSURL*)srcURL toURL:(NSURL*)dstURL window:(NSWindow*)window;
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- (void)trashItemAtURL:(NSURL*)anURL window:(NSWindow*)window;
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@end
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231
Frameworks/OakAppKit/src/OakFileManager.mm
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231
Frameworks/OakAppKit/src/OakFileManager.mm
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#import "OakFileManager.h"
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#import "OakSound.h"
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#import <OakFoundation/NSFileManager Additions.h>
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#import <OakFoundation/NSString Additions.h>
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#import <io/path.h>
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@interface OakFileManager ()
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@property (nonatomic) BOOL hasUISoundToPlay;
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@end
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@implementation OakFileManager
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+ (OakFileManager*)sharedInstance
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{
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static OakFileManager* instance = [OakFileManager new];
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return instance;
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}
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- (void)delsyedPlaySound:(id)aSound
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{
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OakPlayUISound((OakSoundIdentifier)[aSound intValue]);
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self.hasUISoundToPlay = NO;
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}
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- (void)playSound:(OakSoundIdentifier)aSound
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{
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if(!self.hasUISoundToPlay)
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{
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self.hasUISoundToPlay = YES;
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[self performSelector:@selector(delsyedPlaySound:) withObject:@(aSound) afterDelay:0];
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}
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}
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// ===================
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// = Stacked Actions =
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// ===================
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- (BOOL)doCreateDirectory:(NSURL*)dirURL window:(NSWindow*)window
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{
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BOOL res;
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NSError* error;
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if(res = [[NSFileManager defaultManager] createDirectoryAtURL:dirURL withIntermediateDirectories:NO attributes:nil error:&error])
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[[[window undoManager] prepareWithInvocationTarget:self] doRemoveDirectory:dirURL window:window];
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else [window presentError:error];
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return res;
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}
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- (void)doRemoveDirectory:(NSURL*)dirURL window:(NSWindow*)window
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{
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NSError* error;
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if([[NSFileManager defaultManager] removeItemAtURL:dirURL error:&error])
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[[[window undoManager] prepareWithInvocationTarget:self] doCreateDirectory:dirURL window:window];
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else [window presentError:error];
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}
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- (BOOL)doCreateCopy:(NSURL*)dstURL ofURL:(NSURL*)srcURL window:(NSWindow*)window
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{
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BOOL res;
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NSError* error;
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if(res = [[NSFileManager defaultManager] copyItemAtURL:srcURL toURL:dstURL error:&error])
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{
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[[[window undoManager] prepareWithInvocationTarget:self] doRemoveCopy:dstURL ofURL:srcURL window:window];
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[self playSound:OakSoundDidMoveItemUISound];
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}
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else
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{
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[window presentError:error];
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}
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return res;
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}
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- (void)doRemoveCopy:(NSURL*)dstURL ofURL:(NSURL*)srcURL window:(NSWindow*)window
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{
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NSError* error;
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if([[NSFileManager defaultManager] removeItemAtURL:dstURL error:&error])
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{
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[[[window undoManager] prepareWithInvocationTarget:self] doCreateCopy:dstURL ofURL:srcURL window:window];
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[self playSound:OakSoundDidMoveItemUISound];
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}
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else
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{
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[window presentError:error];
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}
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}
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- (BOOL)doCreateLink:(NSURL*)linkURL withDestinationURL:(NSURL*)contentURL window:(NSWindow*)window
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{
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BOOL res;
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NSError* error;
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if(res = [[NSFileManager defaultManager] createSymbolicLinkAtURL:linkURL withDestinationURL:contentURL error:&error])
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[[[window undoManager] prepareWithInvocationTarget:self] doRemoveLink:linkURL withDestinationURL:contentURL window:window];
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else [window presentError:error];
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return res;
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}
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- (void)doRemoveLink:(NSURL*)linkURL withDestinationURL:(NSURL*)contentURL window:(NSWindow*)window
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{
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NSError* error;
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if([[NSFileManager defaultManager] removeItemAtURL:linkURL error:&error])
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[[[window undoManager] prepareWithInvocationTarget:self] doCreateLink:linkURL withDestinationURL:contentURL window:window];
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else [window presentError:error];
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}
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- (BOOL)doMove:(NSURL*)srcURL toURL:(NSURL*)dstURL window:(NSWindow*)window
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{
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BOOL res;
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NSError* error;
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if(res = [[NSFileManager defaultManager] moveItemAtURL:srcURL toURL:dstURL error:&error])
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{
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[[[window undoManager] prepareWithInvocationTarget:self] doMove:dstURL toURL:srcURL window:window];
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[self playSound:OakSoundDidMoveItemUISound];
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}
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else
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{
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[window presentError:error];
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}
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return res;
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}
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- (BOOL)doTrashItem:(NSURL*)trashURL window:(NSWindow*)window
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{
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NSError* error = nil;
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NSURL* inTrashURL;
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if([[NSFileManager defaultManager] tmTrashItemAtURL:trashURL resultingItemURL:&inTrashURL error:&error])
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{
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[[[window undoManager] prepareWithInvocationTarget:self] doRestoreItem:inTrashURL toURL:trashURL window:window];
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[self playSound:OakSoundDidTrashItemUISound];
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return YES;
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}
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if([error.domain isEqualToString:NSCocoaErrorDomain] && error.code == NSFeatureUnsupportedError)
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{
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error = nil;
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NSInteger choice = NSRunCriticalAlertPanel([NSString stringWithFormat:@"Are you sure you want to delete “%@”?", [[NSFileManager defaultManager] displayNameAtPath:[trashURL path]]], @"This item will be deleted immediately. You can’t undo this action.", @"Delete", @"Cancel", nil);
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if(choice == NSAlertDefaultReturn) // "Delete"
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{
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if([[NSFileManager defaultManager] removeItemAtURL:trashURL error:&error])
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[self playSound:OakSoundDidTrashItemUISound];
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}
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}
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if(error)
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[window presentError:error];
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return NO;
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}
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- (void)doRestoreItem:(NSURL*)inTrashURL toURL:(NSURL*)orgURL window:(NSWindow*)window
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{
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NSError* error;
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if([[NSFileManager defaultManager] moveItemAtURL:inTrashURL toURL:orgURL error:&error])
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{
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[[[window undoManager] prepareWithInvocationTarget:self] doTrashItem:orgURL window:window];
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[self playSound:OakSoundDidMoveItemUISound];
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}
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else
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{
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[window presentError:error];
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}
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}
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// ==========
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// = Helper =
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// ==========
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- (NSString*)expandFormat:(NSString*)aFormat withURL:(NSURL*)anURL
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{
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return [NSString stringWithFormat:aFormat, [[NSFileManager defaultManager] displayNameAtPath:[anURL path]]];
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}
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// =======
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// = API =
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// =======
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- (NSURL*)createUntitledDirectoryAtURL:(NSURL*)anURL window:(NSWindow*)window
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{
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NSURL* dst = [NSURL fileURLWithPath:[NSString stringWithCxxString:path::unique(path::join([[anURL path] fileSystemRepresentation], "untitled folder"))] isDirectory:YES];
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if([self doCreateDirectory:dst window:window])
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{
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[[window undoManager] setActionName:@"New Folder"];
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return dst;
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}
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return nil;
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}
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- (NSURL*)createDuplicateOfURL:(NSURL*)srcURL window:(NSWindow*)window
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{
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NSURL* dst = [NSURL fileURLWithPath:[NSString stringWithCxxString:path::unique([[srcURL path] fileSystemRepresentation], " copy")]];
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if([self doCreateCopy:dst ofURL:srcURL window:window])
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{
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[[window undoManager] setActionName:[self expandFormat:@"Duplicate of “%@”" withURL:srcURL]];
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return dst;
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}
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return nil;
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}
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- (void)createSymbolicLinkAtURL:(NSURL*)anURL withDestinationURL:(NSURL*)dstURL window:(NSWindow*)window
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{
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if([self doCreateLink:anURL withDestinationURL:dstURL window:window])
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[[window undoManager] setActionName:[self expandFormat:@"Create Link “%@”" withURL:anURL]];
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}
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- (BOOL)renameItemAtURL:(NSURL*)srcURL toURL:(NSURL*)dstURL window:(NSWindow*)window
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{
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if([self doMove:srcURL toURL:dstURL window:window])
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{
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[[window undoManager] setActionName:@"Rename"];
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return YES;
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}
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return NO;
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}
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- (void)copyItemAtURL:(NSURL*)srcURL toURL:(NSURL*)dstURL window:(NSWindow*)window
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{
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if([self doCreateCopy:dstURL ofURL:srcURL window:window])
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[[window undoManager] setActionName:[self expandFormat:@"Copy of “%@”" withURL:srcURL]];
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}
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- (void)moveItemAtURL:(NSURL*)srcURL toURL:(NSURL*)dstURL window:(NSWindow*)window
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{
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if([self doMove:srcURL toURL:dstURL window:window])
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[[window undoManager] setActionName:[self expandFormat:@"Move of “%@”" withURL:srcURL]];
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}
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- (void)trashItemAtURL:(NSURL*)anURL window:(NSWindow*)window
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{
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if([self doTrashItem:anURL window:window])
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[[window undoManager] setActionName:[self expandFormat:@"Move of “%@”" withURL:anURL]];
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}
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@end
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