ドラッグ＆ドロップされた複数のファイルのパスを得るカスタムView

DropView.h

#import <Cocoa/Cocoa.h>

@interface DropView : NSView

@end

DropView.m

#import "DropView.h"

@implementation DropView

- (id)initWithFrame:(NSRect)frame
{
    self = [super initWithFrame:frame];
    if (self) {

        [self registerForDraggedTypes:[NSArray arrayWithObjects:
                                       NSColorPboardType, NSFilenamesPboardType, nil]];
    }

    return self;
}

- (void)drawRect:(NSRect)dirtyRect
{
    // Drawing code here.
}

- (NSDragOperation)draggingEntered:(id <NSDraggingInfo>)sender {
    NSPasteboard *pboard;
    NSDragOperation sourceDragMask;

    sourceDragMask = [sender draggingSourceOperationMask];
    pboard = [sender draggingPasteboard];

    if ( [[pboard types] containsObject:NSColorPboardType] ) {
        if (sourceDragMask & NSDragOperationGeneric) {
            return NSDragOperationGeneric;
        }
    }
    if ( [[pboard types] containsObject:NSFilenamesPboardType] ) {
        if (sourceDragMask & NSDragOperationLink) {
            return NSDragOperationLink;
        } else if (sourceDragMask & NSDragOperationCopy) {
            return NSDragOperationCopy;
        }
    }
    return NSDragOperationNone;
}

- (BOOL)performDragOperation:(id <NSDraggingInfo>)sender {
    NSPasteboard *pboard;
    NSDragOperation sourceDragMask;

    sourceDragMask = [sender draggingSourceOperationMask];
    pboard = [sender draggingPasteboard];

    if ( [[pboard types] containsObject:NSFilenamesPboardType] ) {
        NSArray *files = [pboard propertyListForType:NSFilenamesPboardType];
        NSLog(@"%@", files);
    }
    return YES;
}

@end