transmission/macosx/ExpandedPathToIconTransformer.mm

/******************************************************************************
 * Copyright (c) 2007-2012 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 <AppKit/AppKit.h>

#import "ExpandedPathToIconTransformer.h"

@implementation ExpandedPathToIconTransformer

+ (Class)transformedValueClass
{
    return [NSImage class];
}

+ (BOOL)allowsReverseTransformation
{
    return NO;
}

- (id)transformedValue:(id)value
{
    if (!value)
    {
        return nil;
    }

    NSString* path = [value stringByExpandingTildeInPath];
    NSImage* icon;
    //show a folder icon if the folder doesn't exist
    if ([path.pathExtension isEqualToString:@""] && ![NSFileManager.defaultManager fileExistsAtPath:path])
    {
        icon = [NSWorkspace.sharedWorkspace iconForFileType:NSFileTypeForHFSTypeCode(kGenericFolderIcon)];
    }
    else
    {
        icon = [NSWorkspace.sharedWorkspace iconForFile:path];
    }

    icon.size = NSMakeSize(16.0, 16.0);

    return icon;
}

@end