1/* 2 * Copyright (C) 2012 Apple Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY 15 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 16 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 17 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY 18 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 19 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 20 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 21 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26#import "config.h" 27#import "UTIUtilities.h" 28 29#if PLATFORM(IOS) 30#import "SoftLinking.h" 31#import <MobileCoreServices/MobileCoreServices.h> 32 33SOFT_LINK_FRAMEWORK(MobileCoreServices) 34 35SOFT_LINK(MobileCoreServices, UTTypeCopyDeclaration, CFDictionaryRef, (CFStringRef inUTI), (inUTI)) 36SOFT_LINK(MobileCoreServices, UTTypeCopyPreferredTagWithClass, CFStringRef, (CFStringRef inUTI, CFStringRef inTagClass), (inUTI, inTagClass)) 37SOFT_LINK(MobileCoreServices, UTTypeCreatePreferredIdentifierForTag, CFStringRef, (CFStringRef inTagClass, CFStringRef inTag, CFStringRef inConformingToUTI), (inTagClass, inTag, inConformingToUTI)) 38 39SOFT_LINK_CONSTANT(MobileCoreServices, kUTTypeConformsToKey, CFStringRef) 40SOFT_LINK_CONSTANT(MobileCoreServices, kUTTagClassMIMEType, CFStringRef) 41 42#define kUTTagClassMIMEType getkUTTagClassMIMEType() 43#define kUTTypeConformsToKey getkUTTypeConformsToKey() 44#endif 45 46namespace WebCore { 47 48RetainPtr<CFStringRef> mimeTypeFromUTITree(CFStringRef uti) 49{ 50 // Check if this UTI has a MIME type. 51 RetainPtr<CFStringRef> mimeType = adoptCF(UTTypeCopyPreferredTagWithClass(uti, kUTTagClassMIMEType)); 52 if (mimeType) 53 return mimeType.get(); 54 55 // If not, walk the ancestory of this UTI via its "ConformsTo" tags and return the first MIME type we find. 56 RetainPtr<CFDictionaryRef> decl = adoptCF(UTTypeCopyDeclaration(uti)); 57 if (!decl) 58 return nil; 59 CFTypeRef value = CFDictionaryGetValue(decl.get(), kUTTypeConformsToKey); 60 if (!value) 61 return nil; 62 CFTypeID typeID = CFGetTypeID(value); 63 64 if (typeID == CFStringGetTypeID()) 65 return mimeTypeFromUTITree((CFStringRef)value); 66 67 if (typeID == CFArrayGetTypeID()) { 68 CFArrayRef newTypes = (CFArrayRef)value; 69 CFIndex count = CFArrayGetCount(newTypes); 70 for (CFIndex i = 0; i < count; ++i) { 71 CFTypeRef object = CFArrayGetValueAtIndex(newTypes, i); 72 if (CFGetTypeID(object) != CFStringGetTypeID()) 73 continue; 74 75 if (RetainPtr<CFStringRef> mimeType = mimeTypeFromUTITree((CFStringRef)object)) 76 return mimeType; 77 } 78 } 79 80 return nil; 81} 82 83RetainPtr<CFStringRef> UTIFromMIMEType(CFStringRef mime) 84{ 85 RetainPtr<CFStringRef> uti = adoptCF(UTTypeCreatePreferredIdentifierForTag(kUTTagClassMIMEType, mime, 0)); 86 return uti; 87} 88 89} 90