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Add a custom schema file
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This has two benefits.

The first is that we can create custom attributes for things we can
extract (e.g. illustrators) that Spotlight has no concept of (i.e. the
kMDItemFoo things)

So this creates attributes for illustrators and translators. Note the
name is reverse DNS style with "." replaced with "_". Note also that "-"
needs to be replaced or the schema file will be unparseable at runtime -
I used "_" for that too.

The second benefit is that this allows us to customize the "More info"
panel in the Finder "Get Info" window. This is quite cool.

It would be nice if the More info panel could display our custom
attributes, but it doesn't seem to. There's no obvious way for it to map
the attribute name org_idpf_foo to a friendly label.

I commented out the "Indexed nnnn characters" things.
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@chrisridd
chrisridd committed Mar 4, 2012
1 parent 2cf1ba9 commit 4a328ab
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Showing 3 changed files with 53 additions and 3 deletions.
4 changes: 4 additions & 0 deletions epub.xcodeproj/project.pbxproj
View file
Expand Up @@ -51,6 +51,7 @@
675FAB5C14D9BF780065603A /* zip.c in Sources */ = {isa = PBXBuildFile; fileRef = D78388991354AA7600E7937B /* zip.c */; };
6783BD9F14FA8C1C00696991 /* NSString+HTML.m in Sources */ = {isa = PBXBuildFile; fileRef = 674D09CF14CF2C6800127A36 /* NSString+HTML.m */; };
67909CE914F37D9E009819B2 /* NSDate+OPF.m in Sources */ = {isa = PBXBuildFile; fileRef = 67E3077214E9A24A0004C1D8 /* NSDate+OPF.m */; };
67932B221503FEA600D61278 /* schema.xml in Resources */ = {isa = PBXBuildFile; fileRef = 67932B211503FEA600D61278 /* schema.xml */; };
67BE43EE14DEC886003C7DFC /* fake-adept.epub in Resources */ = {isa = PBXBuildFile; fileRef = 67BE43EB14DEC886003C7DFC /* fake-adept.epub */; };
67BE43EF14DEC886003C7DFC /* fake-fairplay.epub in Resources */ = {isa = PBXBuildFile; fileRef = 67BE43EC14DEC886003C7DFC /* fake-fairplay.epub */; };
67BE43F014DEC886003C7DFC /* fake-kobo.epub in Resources */ = {isa = PBXBuildFile; fileRef = 67BE43ED14DEC886003C7DFC /* fake-kobo.epub */; };
Expand Down Expand Up @@ -121,6 +122,7 @@
675FAB4A14D9B8760065603A /* EpubTests.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = EpubTests.h; sourceTree = "<group>"; };
675FAB4B14D9B8760065603A /* EpubTests.m */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.objc; path = EpubTests.m; sourceTree = "<group>"; };
675FAB4D14D9B8760065603A /* EpubTests-Prefix.pch */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = "EpubTests-Prefix.pch"; sourceTree = "<group>"; };
67932B211503FEA600D61278 /* schema.xml */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.xml; path = schema.xml; sourceTree = "<group>"; };
67BE43EB14DEC886003C7DFC /* fake-adept.epub */ = {isa = PBXFileReference; lastKnownFileType = file; path = "fake-adept.epub"; sourceTree = "<group>"; };
67BE43EC14DEC886003C7DFC /* fake-fairplay.epub */ = {isa = PBXFileReference; lastKnownFileType = file; path = "fake-fairplay.epub"; sourceTree = "<group>"; };
67BE43ED14DEC886003C7DFC /* fake-kobo.epub */ = {isa = PBXFileReference; lastKnownFileType = file; path = "fake-kobo.epub"; sourceTree = "<group>"; };
Expand Down Expand Up @@ -224,6 +226,7 @@
235DC65414EFB3C800D28657 /* InfoPlist.strings */,
235DC65714EFB3C800D28657 /* main.c */,
235DC65F14EFB3C800D28657 /* epubMDI-Prefix.pch */,
67932B211503FEA600D61278 /* schema.xml */,
);
name = "Supporting Files";
sourceTree = "<group>";
Expand Down Expand Up @@ -507,6 +510,7 @@
files = (
235DC65614EFB3C800D28657 /* InfoPlist.strings in Resources */,
674566961502B4810012224C /* entities.plist in Resources */,
67932B221503FEA600D61278 /* schema.xml in Resources */,
);
runOnlyForDeploymentPostprocessing = 0;
};
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13 changes: 10 additions & 3 deletions epubMDI/MySpotlightImporter.m
View file
Expand Up @@ -39,7 +39,14 @@ - (BOOL)importFileAtPath:(NSString *)filePath attributes:(NSMutableDictionary *)
[spotlightData setObject:editors forKey:(NSString *)kMDItemEditors];

// illustrators
NSArray *illustrators = [epub illustrators];
if ([illustrators count] > 0)
[spotlightData setObject:illustrators forKey:@"org_idpf_epub_container_metadata_illustrators"];

// translators
NSArray *translators = [epub translators];
if ([translators count] > 0)
[spotlightData setObject:translators forKey:@"org_idpf_epub_container_metadata_translators"];

// synopsis kMDItemHeadline ?
NSString *synopsis = [[epub synopsis] stringByStrippingHTML];
Expand Down Expand Up @@ -74,12 +81,12 @@ - (BOOL)importFileAtPath:(NSString *)filePath attributes:(NSMutableDictionary *)
if (text)
[content appendString:text];
} while (text);
NSString *tmp = [NSString stringWithFormat:@"Indexed %lu", [content length]];
[spotlightData setObject:tmp forKey:(NSString *)kMDItemComment];
//NSString *tmp = [NSString stringWithFormat:@"Indexed %lu", [content length]];
//[spotlightData setObject:tmp forKey:(NSString *)kMDItemComment];
[spotlightData setObject:content forKey:(NSString *)kMDItemTextContent];
[content release];
} else {
[spotlightData setObject:@"No indexed content" forKey:(NSString *)kMDItemComment];
//[spotlightData setObject:@"No indexed content" forKey:(NSString *)kMDItemComment];
}

[epub release];
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39 changes: 39 additions & 0 deletions epubMDI/schema.xml
View file
@@ -0,0 +1,39 @@
<?xml version="1.0" encoding="UTF-8"?>
<schema version="1.0" xmlns="http://www.apple.com/metadata"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.apple.com/metadata
file:///System/Library/Frameworks/CoreServices.framework/Frameworks/Metadata.framework/Resources/MetadataSchema.xsd">
<note>
Custom attributes indexed by this EPUB metadata importer.
</note>
<attributes>
<attribute name="org_idpf_epub_container_metadata_illustrators" multivalued="true" type="CFString"/>
<attribute name="org_idpf_epub_container_metadata_translators" multivalued="true" type="CFString"/>
</attributes>
<types>
<type name="org.idpf.epub-container">
<allattrs>
kMDItemDisplayName
kMDItemAuthors
kMDItemPublishers
kMDItemContributors
kMDItemEditors
org_idpf_epub_container_metadata_illustrators
org_idpf_epub_container_metadata_translators
kMDItemHeadline
kMDItemIdentifier
kMDItemDueDate
kMDItemSecurityMethod
kMDItemComment
kMDItemTextContent
</allattrs>
<displayattrs>
kMDItemDisplayName
kMDItemAuthors
kMDItemPublishers
kMDItemDueDate
kMDItemSecurityMethod
</displayattrs>
</type>
</types>
</schema>

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