GMFinderInfo.m

//
//  GMFinderInfo.m
//  OSXFUSE
//

//  Copyright (c) 2014 Benjamin Fleischer.
//  All rights reserved.

//  OSXFUSE.framework is based on MacFUSE.framework. MacFUSE.framework is
//  covered under the following BSD-style license:
//
//  Copyright (c) 2007 Google Inc.
//  All rights reserved.
//
//  Redistribution  and  use  in  source  and  binary  forms,  with  or  without
//  modification, are permitted provided that the following conditions are met:
//
//  1. Redistributions of source code must retain the  above  copyright  notice,
//     this list of conditions and the following disclaimer.
//  2. Redistributions in binary form must reproduce the above copyright notice,
//     this list of conditions and the following disclaimer in the documentation
//     and/or other materials provided with the distribution.
//  3. Neither the name of Google Inc. nor the names of its contributors may  be
//     used to endorse or promote products derived from  this  software  without
//     specific prior written permission.
//
//  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS  IS"
//  AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT  LIMITED  TO,  THE
//  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A  PARTICULAR  PURPOSE
//  ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT  OWNER  OR  CONTRIBUTORS  BE
//  LIABLE  FOR  ANY  DIRECT,  INDIRECT,  INCIDENTAL,  SPECIAL,  EXEMPLARY,   OR
//  CONSEQUENTIAL  DAMAGES  (INCLUDING,  BUT  NOT  LIMITED  TO,  PROCUREMENT  OF
//  SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,  OR  PROFITS;  OR  BUSINESS
//  INTERRUPTION) HOWEVER CAUSED AND ON ANY  THEORY  OF  LIABILITY,  WHETHER  IN
//  CONTRACT, STRICT LIABILITY, OR  TORT  (INCLUDING  NEGLIGENCE  OR  OTHERWISE)
//  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED  OF  THE
//  POSSIBILITY OF SUCH DAMAGE.

#import "GMFinderInfo.h"

// All fields should be in network order. See CoreServices/CarbonCore/Finder.h
// for details on what flags and extendedFlags can be.
#pragma pack(push, 1)
typedef struct {
  union {
    struct {
      UInt32 type;
      UInt32 creator;
    } fileInfo;
    struct {
      UInt16 y1;  // Top left of window.
      UInt16 x1;
      UInt16 y2;  // Bottom right of window.
      UInt16 x2;
    } dirInfo;
  } fileOrDirInfo;
  UInt16 flags;  // Finder flags.
  struct {
    UInt16 y;
    UInt16 x;
  } location;
  UInt16 reserved;
} GenericFinderInfo;

typedef struct {
  UInt32 ignored0;
  UInt32 ignored1;
  UInt16 extendedFlags;  // Extended finder flags.
  UInt16 ignored3;
  UInt32 ignored4;
} GenericExtendedFinderInfo;

typedef struct {
  GenericFinderInfo base;
  GenericExtendedFinderInfo extended;
} PackedFinderInfo;
#pragma pack(pop)

@implementation GMFinderInfo

+ (GMFinderInfo *)finderInfo {
  return [[[GMFinderInfo alloc] init] autorelease];
}

- (id)init {
  self = [super init];
  if (self) {
    flags_ = 0;
    extendedFlags_ = 0;
    typeCode_ = 0;
    creatorCode_ = 0;
  }
  return self;
}

- (void)setFlags:(UInt16)flags {
  flags_ = flags;
}
- (void)setExtendedFlags:(UInt16)extendedFlags {
  extendedFlags_ = extendedFlags;
}
- (void)setTypeCode:(OSType)typeCode {
  typeCode_ = typeCode;
}
- (void)setCreatorCode:(OSType)creatorCode {
  creatorCode_ = creatorCode;
}

- (NSData *)data {
  PackedFinderInfo info;
  assert(sizeof(info) == 32);
  memset(&info, 0, sizeof(info));
  info.base.fileOrDirInfo.fileInfo.type = htonl(typeCode_);
  info.base.fileOrDirInfo.fileInfo.creator = htonl(creatorCode_);
  info.base.flags = htons(flags_);
  info.extended.extendedFlags = htons(extendedFlags_);
  return [NSData dataWithBytes:&info length:sizeof(info)];    
}

@end