1 files changed, 209 insertions, 0 deletions
diff --git a/extensions/source/macosx/spotlight/OOoMetaDataParser.m b/extensions/source/macosx/spotlight/OOoMetaDataParser.m
new file mode 100644
index 000000000..2b4dac82c
--- /dev/null
+++ b/extensions/source/macosx/spotlight/OOoMetaDataParser.m
@@ -0,0 +1,209 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <objc/objc-runtime.h>
+
+#import "OOoMetaDataParser.h"
+
+static NSSet *singleValueXMLElements;
+static NSSet *multiValueXMLElements;
+static NSDictionary *metaXML2MDIKeys;
+
+@implementation OOoMetaDataParser
+
++ (void)initialize
+{
+    static BOOL isInitialized = NO;
+
+    if (isInitialized == NO) {
+        //set up the meta elements with only one value
+        NSMutableSet *temp = [NSMutableSet new];
+//FIXME these should use namespace URIs and not prefixes
+        [temp addObject:@"dc:title"];
+        [temp addObject:@"dc:description"];
+        [temp addObject:@"meta:user-defined"];
+        singleValueXMLElements = [[NSSet setWithSet:temp] retain];
+
+        //set up the meta elements that can have more than one value
+        [temp removeAllObjects];
+        [temp addObject:@"dc:subject"];
+        [temp addObject:@"meta:keyword"];
+        [temp addObject:@"meta:initial-creator"];
+        [temp addObject:@"dc:creator"];
+        multiValueXMLElements = [[NSSet setWithSet:temp] retain];
+        [temp release];
+
+        //set up the map to store the values with the correct MDI keys
+        NSMutableDictionary *tempDict = [NSMutableDictionary new];
+        [tempDict setObject:(NSString*)kMDItemTitle forKey:@"dc:title"];
+        [tempDict setObject:(NSString*)kMDItemDescription forKey:@"dc:description"];
+        [tempDict setObject:(NSString*)kMDItemKeywords forKey:@"dc:subject"];
+        [tempDict setObject:(NSString*)kMDItemAuthors forKey:@"meta:initial-creator"];
+        [tempDict setObject:(NSString*)kMDItemAuthors forKey:@"dc:creator"];
+        [tempDict setObject:(NSString*)kMDItemKeywords forKey:@"meta:keyword"];
+        [tempDict setObject:@"org_openoffice_opendocument_custominfo1" forKey:@"Info 1"];
+        [tempDict setObject:@"org_openoffice_opendocument_custominfo2" forKey:@"Info 2"];
+        [tempDict setObject:@"org_openoffice_opendocument_custominfo3" forKey:@"Info 3"];
+        [tempDict setObject:@"org_openoffice_opendocument_custominfo4" forKey:@"Info 4"];
+        metaXML2MDIKeys = [[NSDictionary dictionaryWithDictionary:tempDict] retain];
+        [tempDict release];
+
+        isInitialized = YES;
+    }
+}
+
+- (id)init
+{
+    if ((self = [super init]) != nil) {
+        shouldReadCharacters = NO;
+        textCurrentElement = nil;
+
+        return self;
+    }
+
+    return nil;
+}
+
+- (void)parseXML:(NSData*)data intoDictionary:(NSMutableDictionary*)dict
+{
+    metaValues = dict;
+
+    //NSLog(@"data: %@ %d", data, [data length]);
+
+    //init parser settings
+    shouldReadCharacters = NO;
+
+    NSXMLParser *parser = [[NSXMLParser alloc] initWithData:data];
+
+    // class 'OOoMetaDataParser' does not implement the 'NSXMLParserDelegate' protocol
+    // So instead of this:
+    // [parser setDelegate:self];
+    // do this:
+    ((id (*)(id, SEL, ...))objc_msgSend)(parser, @selector(setDelegate:), self);
+
+    [parser setShouldResolveExternalEntities:NO];
+    [parser parse];
+
+    [parser release];
+
+    //NSLog(@"finished parsing meta");
+}
+
+- (void)parser:(NSXMLParser *)parser didStartElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qualifiedName attributes:(NSDictionary *)attributeDict
+{
+    (void) parser; // unused
+    (void) namespaceURI; // FIXME this should not be ignored but should be used
+                         // instead of meta: prefix in the comparison below!
+    (void) qualifiedName; // unused
+//    NSLog(@"<%@>", elementName);
+    if ([singleValueXMLElements containsObject:elementName] == YES) {
+        shouldReadCharacters = YES;
+    } else if ([multiValueXMLElements containsObject:elementName] == YES) {
+        shouldReadCharacters = YES;
+    } else {
+        //we are not interested in this element
+        shouldReadCharacters = NO;
+        return;
+    }
+
+    if (shouldReadCharacters == YES) {
+        textCurrentElement = [NSMutableString new];
+        isCustom = [elementName isEqualToString:@"meta:user-defined"];
+        if (isCustom == YES) {
+            customAttribute = [[attributeDict objectForKey:@"meta:name"] retain];
+            //NSLog(customAttribute);
+        }
+    }
+
+    //NSLog(@"start element %@", elementName);
+}
+
+- (void)parser:(NSXMLParser *)parser didEndElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName
+{
+    (void) parser; // unused
+    (void) namespaceURI; // unused
+    (void) qName; // unused
+//    NSLog(@"</%@>", elementName);
+    if (shouldReadCharacters == YES) {
+        NSString *mdiName = nil;
+        if (isCustom == YES) {
+            mdiName = (NSString*)[metaXML2MDIKeys objectForKey:customAttribute];
+        } else {
+            mdiName = (NSString*)[metaXML2MDIKeys objectForKey:elementName];
+        }
+        //NSLog(@"mdiName: %@", mdiName);
+
+        if (mdiName == nil) {
+            return;
+        }
+
+        if ([singleValueXMLElements containsObject:elementName] == YES) {
+            [metaValues setObject:textCurrentElement forKey:mdiName];
+        } else {
+            // must be multi-value
+            NSMutableArray *arr = [metaValues objectForKey:mdiName];
+            if (arr == nil) {
+                // we have no array yet, create it
+                arr = [[NSMutableArray new] autorelease];
+                // and store it
+                [metaValues setObject:arr forKey:mdiName];
+            }
+            // only store an element once, no need for duplicates
+            if ([arr containsObject:textCurrentElement] == NO) {
+                [arr addObject:textCurrentElement];
+            }
+        }
+        // cleanup part 1
+        [textCurrentElement release];
+        if (isCustom == YES) {
+            [customAttribute release];
+        }
+    }
+
+    //cleanup part 2
+    shouldReadCharacters = NO;
+    isCustom = NO;
+}
+
+- (void)parser:(NSXMLParser *)parser foundCharacters:(NSString *)string
+{
+    (void) parser; // unused
+//    NSLog(@"%@", string);
+    if (shouldReadCharacters == NO) {
+        return;
+    }
+
+    // this delegate method might be called several times for a single element,
+    // so we have to collect the received data
+    [textCurrentElement appendString:string];
+
+    //NSLog(@"chars read: %@", string);
+}
+
+- (void)parser:(NSXMLParser *)parser parseErrorOccurred:(NSError *)parseError
+{
+    //NSLog(@"parsing finished with error");
+    NSLog(@"Error %li, Description: %@, Line: %li, Column: %li", (long) [parseError code],
+          [[parser parserError] localizedDescription], (long) [parser lineNumber],
+          (long) [parser columnNumber]);
+}
+
+@end
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */