Added Delegation Support

Author: Johannes Ekberg

SSZipArchive.h

@@ -7,13 +7,17 @@
 //
 
 #import <Foundation/Foundation.h>
+#import "SSZipArchiveDelegate.h"
 
 @interface SSZipArchive : NSObject
 
 // Unzip
 + (BOOL)unzipFileAtPath:(NSString *)path toDestination:(NSString *)destination;
 + (BOOL)unzipFileAtPath:(NSString *)path toDestination:(NSString *)destination overwrite:(BOOL)overwrite password:(NSString *)password error:(NSError **)error;
 
++ (BOOL)unzipFileAtPath:(NSString *)path toDestination:(NSString *)destination delegate:(id<SSZipArchiveDelegate>)delegate;
++ (BOOL)unzipFileAtPath:(NSString *)path toDestination:(NSString *)destination overwrite:(BOOL)overwrite password:(NSString *)password error:(NSError **)error delegate:(id<SSZipArchiveDelegate>)delegate;
+
 // Zip
 + (BOOL)createZipFileAtPath:(NSString *)path withFilesAtPaths:(NSArray *)filenames;
 

SSZipArchive.m

@@ -29,11 +29,21 @@ @implementation SSZipArchive {
 #pragma mark - Unzipping
 
 + (BOOL)unzipFileAtPath:(NSString *)path toDestination:(NSString *)destination {
-	return [self unzipFileAtPath:path toDestination:destination overwrite:YES password:nil error:nil];
+	return [self unzipFileAtPath:path toDestination:destination delegate:nil];
 }
 
 
 + (BOOL)unzipFileAtPath:(NSString *)path toDestination:(NSString *)destination overwrite:(BOOL)overwrite password:(NSString *)password error:(NSError **)error {
+	return [self unzipFileAtPath:path toDestination:destination overwrite:overwrite password:password error:error delegate:nil];
+}
+
+
++ (BOOL)unzipFileAtPath:(NSString *)path toDestination:(NSString *)destination delegate:(id<SSZipArchiveDelegate>)delegate {
+	return [self unzipFileAtPath:path toDestination:destination overwrite:YES password:nil error:nil delegate:delegate];
+}
+
+
++ (BOOL)unzipFileAtPath:(NSString *)path toDestination:(NSString *)destination overwrite:(BOOL)overwrite password:(NSString *)password error:(NSError **)error delegate:(id<SSZipArchiveDelegate>)delegate {
 	// Begin opening
 	zipFile zip = unzOpen((const char*)[path UTF8String]);	
 	if (zip == NULL) {
@@ -62,6 +72,7 @@ + (BOOL)unzipFileAtPath:(NSString *)path toDestination:(NSString *)destination o
 	NSFileManager *fileManager = [NSFileManager defaultManager];
 	NSMutableSet *directoriesModificationDates = [[NSMutableSet alloc] init];
 
+	NSInteger currentFileNumber = 0;
 	do {
 		if ([password length] == 0) {
 			ret = unzOpenCurrentFile(zip);
@@ -85,6 +96,8 @@ + (BOOL)unzipFileAtPath:(NSString *)path toDestination:(NSString *)destination o
 			break;
 		}
 
+		[delegate zipArchiveWillUnzipFileNumber:currentFileNumber fromFile:path fileInfo:fileInfo];
+		
 		char *filename = (char *)malloc(fileInfo.size_filename + 1);
 		unzGetCurrentFileInfo(zip, &fileInfo, filename, fileInfo.size_filename + 1, NULL, 0, NULL, 0);
 		filename[fileInfo.size_filename] = '\0';
@@ -155,6 +168,8 @@ + (BOOL)unzipFileAtPath:(NSString *)path toDestination:(NSString *)destination o
 
 		unzCloseCurrentFile( zip );
 		ret = unzGoToNextFile( zip );
+		
+		currentFileNumber++;
 	} while(ret == UNZ_OK && UNZ_OK != UNZ_END_OF_LIST_OF_FILE);
 
 	// Close