Added playlistloader class.

Playlist/PlaylistLoader.h

@@ -0,0 +1,48 @@
+//
+//  PlaylistLoader.h
+//  Cog
+//
+//  Created by Vincent Spader on 3/05/07.
+//  Copyright 2007 Vincent Spader All rights reserved.
+//
+
+#import <Cocoa/Cocoa.h>
+
+@class PlaylistController;
+
+typedef enum {
+	kPlaylistM3u,
+	kPlaylistPls,
+} PlaylistType;
+
+@interface PlaylistLoader : NSObject {
+	PlaylistController *playlistController;
+
+	PlaylistType currentType; //m3u or pls
+	NSString *currentFile;
+}
+
+
+
+//load playlist auto-determines type to be either pls or m3u.
+- (BOOL)load:(NSString *)filename;
+- (BOOL)loadM3u:(NSString *)filename;
+- (BOOL)loadPls:(NSString *)filename;
+
+//save playlist, uses current info, will fail if there is no current info.
+- (BOOL)save;
+//save playlist, auto-determines type based on extension. Uses m3u if it cannot be determined.
+- (BOOL)save:(NSString *)filename;
+- (BOOL)save:(NSString *)filename asType:(PlaylistType)type;
+- (BOOL)saveM3u:(NSString *)filename;
+- (BOOL)savePls:(NSString *)filename;
+
+- (NSArray *)acceptablePlaylistTypes;
+
+- (PlaylistType)currentType;
+- (void)setCurrentType:(PlaylistType)type;
+
+- (NSString *)currentFile;
+- (void)setCurrentFile:(NSString *)currentFile;
+
+@end

Playlist/PlaylistLoader.m

@@ -0,0 +1,189 @@
+//
+//  PlaylistLoader.m
+//  Cog
+//
+//  Created by Vincent Spader on 3/05/07.
+//  Copyright 2007 Vincent Spader All rights reserved.
+//
+
+#import "PlaylistLoader.h"
+#import "PlaylistController.h"
+#import "PlaylistEntry.h"
+
+@implementation PlaylistLoader
+
+//load/save playlist auto-determines type to be either pls or m3u.
+- (BOOL)load:(NSString *)filename
+{
+	NSString *ext = [filename pathExtension];
+	if ([ext isEqualToString:@"m3u"])
+	{
+		return [self loadM3u:filename];
+	}
+	else if ([ext isEqualToString:@"pls"])
+	{
+		return [self loadPls:filename];
+	}
+	else
+	{
+		return [self loadPls:filename] || [self loadM3u:filename];
+	}
+}
+
+- (BOOL)save
+{
+	[self save:currentFilename asType:currentType];
+}
+
+- (BOOL)save:(NSString *)filename
+{
+	NSString *ext = [filename pathExtension];
+	if ([ext isEqualToString:@"pls"])
+	{
+		return [self save:filename asType:kPlaylistPls];
+	}
+	else
+	{
+		return [self save:filename asType:kPlaylistM3u];
+	}
+}	
+
+- (BOOL)save:(NSString *)filename asType:(PlaylistType)type
+{
+	if (type == kPlaylistM3u)
+	{
+		return [self saveM3u:filename];
+	}
+	else if (type == kPlaylistPls)
+	{
+		return [self savePls:filename];
+	}
+
+	return NO;
+}
+
+- (BOOL)loadM3u:(NSString *)filename
+{
+}
+
+- (NSString *)pathRelativeTo:(NSString *)filename forEntry:(PlaylistEntry *)pe
+{
+	NSString *basePath = [[[filename stringByStandardizingPath] stringByDeletingLastPathComponent] stringByAppendingString:@"/"];
+
+	NSURL *entryURL = [pe url];
+	if ([[entryURL scheme] isEqualToString:@"file"]) {
+		//We want relative paths.
+		NSMutableString *entryPath = [[[[entryURL path] stringByStandardizingPath] mutableCopy] autorelease];
+
+		[entryPath replaceOccurrencesOfString:basePath withString:@"" options:(NSAnchoredSearch | NSLiteralSearch | NSCaseInsensitiveSearch) range:NSMakeRange(0, [entryURL length])];
+
+		return entryPath;		
+	}
+	else {
+		//Write [entryURL absoluteString] to file
+		return [entryURL absoluteString];
+	}
+}
+
+	return paths;
+}
+
+- (BOOL)saveM3u:(NSString *)filename
+{
+	NSFileHandle *fileHandle = [NSFileHandle fileHandleForWritingAtPath:filename];
+	if (!fileHandle) {
+		return NO;
+	}
+
+	PlaylistEntry *pe;
+	NSEnumerator *e = [[playlistController content] objectEnumerator];
+
+	while (pe = [e nextObject])
+	{
+		NSString *path = [self pathRelativeTo:filename forEntry:pe];
+		[fileHandle writeData:[[path stringByAppendingString:@"\n"] dataUsingEncoding:NSUTF8StringEncoding]];
+	}
+
+	[self setCurrentFile:filename];
+	[self setType:kPlaylistM3u];
+
+	return YES;
+}
+
+- (BOOL)loadPls:(NSString *)filename
+{
+	NSError *error;
+	NSStringEncoding enc;
+	NSString *contents = [NSString stringWithContentsOfFile:filename encoding:&enc error:&error];
+	if (error || !contents) {
+		return NO;
+	}
+
+	NSArray *entries = [contents componentsSeparatedByString:@"\n"];
+
+	NSString *entry;
+	NSEnumerator *e = [entries objectEnumerator];
+
+	while (entry = [e nextObject])
+	{
+		NSString *
+
+	}
+
+	[playlistController addURLs:urls];
+	
+	return YES;
+}
+
+- (BOOL)savePls:(NSString *)filename
+{
+	NSFileHandle *fileHandle = [NSFileHandle fileHandleForWritingAtPath:filename];
+	if (!fileHandle) {
+		return NO;
+	}
+
+	NSEnumerator *e = [[playlistController content] objectEnumerator];
+	PlaylistEntry *pe;
+
+	while (pe = [e nextObject])
+	{
+		NSString *path = [self pathRelativeTo:filename forEntry:pe];
+		NSString *entry = [NSString stringWithFormat:@"File%i=%@\n",i,path];
+
+		[fileHandle writeData:[entry dataUsingEncoding:NSUTF8StringEncoding]];
+	}
+
+	[self setCurrentFile:filename];
+	[self setType:kPlaylistM3u];
+
+	return YES;
+}
+
+- (NSArray *)acceptablePlaylistTypes
+{
+	return [NSArray arrayWithObject:@"m3u",@"pls",nil];
+}
+
+- (PlaylistType)currentType
+{
+	return currentType;
+}
+
+- (void)setCurrentType:(PlaylistType)type
+{
+	currentType = type;
+}
+
+- (NSString *)currentFile
+{
+	return currentFile;
+}
+
+- (void)setCurrentFile:(NSString *)file
+{
+	[file retain];
+	[currentFile release];
+	currentFile = file;
+}
+
+@end