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/* HBAutoNamer.m $
This file is part of the HandBrake source code.
Homepage: <http://handbrake.fr/>.
It may be used under the terms of the GNU General Public License. */
#import "HBAutoNamer.h"
#import "HBJob.h"
#import "HBUtilities.h"
static void *HBAutoNamerPrefsContext = &HBAutoNamerPrefsContext;
static void *HBAutoNamerContext = &HBAutoNamerContext;
@interface HBAutoNamer ()
@property (nonatomic) HBJob *job;
@property (nonatomic) NSArray<NSString *> *format;
@end
@implementation HBAutoNamer
- (instancetype)initWithJob:(HBJob *)job
{
self = [super init];
if (self)
{
_job = job;
_format = [[NSUserDefaults standardUserDefaults] objectForKey:@"HBAutoNamingFormat"];
[self addFormatObservers];
[self addJobObservers];
[self addPrefsObservers];
}
return self;
}
- (void)dealloc
{
[self removeFormatObservers];
[self removeJobObservers];
[self removePrefsObservers];
}
#pragma mark - KVO
- (void)observeValueForKeyPath:(NSString *)keyPath ofObject:(id)object change:(NSDictionary *)change context:(void *)context
{
if (context == HBAutoNamerContext)
{
[self updateFileName];
}
else if (context == HBAutoNamerPrefsContext)
{
[self removeJobObservers];
self.format = [[NSUserDefaults standardUserDefaults] objectForKey:@"HBAutoNamingFormat"];
[self addJobObservers];
[self updateFileName];
[self updateFileExtension];
}
else
{
[super observeValueForKeyPath:keyPath ofObject:object change:change context:context];
}
}
- (void)addPrefsObservers
{
NSUserDefaultsController *ud = [NSUserDefaultsController sharedUserDefaultsController];
[ud addObserver:self forKeyPath:@"values.HBAutoNamingFormat" options:0 context:HBAutoNamerPrefsContext];
[ud addObserver:self forKeyPath:@"values.HBAutoNamingRemoveUnderscore" options:0 context:HBAutoNamerPrefsContext];
[ud addObserver:self forKeyPath:@"values.HBAutoNamingRemovePunctuation" options:0 context:HBAutoNamerPrefsContext];
[ud addObserver:self forKeyPath:@"values.HBAutoNamingTitleCase" options:0 context:HBAutoNamerPrefsContext];
}
- (void)removePrefsObservers
{
NSUserDefaultsController *ud = [NSUserDefaultsController sharedUserDefaultsController];
[ud removeObserver:self forKeyPath:@"values.HBAutoNamingFormat" context:HBAutoNamerPrefsContext];
[ud removeObserver:self forKeyPath:@"values.HBAutoNamingRemoveUnderscore" context:HBAutoNamerPrefsContext];
[ud removeObserver:self forKeyPath:@"values.HBAutoNamingRemovePunctuation" context:HBAutoNamerPrefsContext];
[ud removeObserver:self forKeyPath:@"values.HBAutoNamingTitleCase" context:HBAutoNamerPrefsContext];
}
#pragma mark - File extension
- (void)addFormatObservers
{
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(updateFileExtension:) name:HBAudioEncoderChangedNotification object:self.job.audio];
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(updateFileExtension:) name:HBChaptersChangedNotification object:self.job];
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(updateFileExtension:) name:HBRangeChangedNotification object:self.job.range];
}
- (void)removeFormatObservers
{
[[NSNotificationCenter defaultCenter] removeObserver:self name:HBAudioEncoderChangedNotification object:self.job.audio];
[[NSNotificationCenter defaultCenter] removeObserver:self name:HBChaptersChangedNotification object:self.job];
[[NSNotificationCenter defaultCenter] removeObserver:self name:HBRangeChangedNotification object:_job.range];
}
- (void)updateFileExtension:(NSNotification *)notification
{
NSUndoManager *undo = self.job.undo;
if (self.job && !(undo.isUndoing || undo.isRedoing))
{
NSString *extension = [HBUtilities automaticExtForJob:self.job];
if (![extension isEqualTo:self.job.outputFileName.pathExtension])
{
self.job.outputFileName = [[self.job.outputFileName stringByDeletingPathExtension] stringByAppendingPathExtension:extension];
}
}
}
- (void)updateFileExtension
{
[self updateFileExtension:nil];
}
#pragma mark - File name
- (void)addJobObservers
{
for (NSString *formatKey in self.format)
{
if ([formatKey isEqualToString:@"{Chapters}"])
{
[self.job addObserver:self forKeyPath:@"range.chapterStart" options:0 context:HBAutoNamerContext];
[self.job addObserver:self forKeyPath:@"range.chapterStop" options:0 context:HBAutoNamerContext];
}
else if ([formatKey isEqualToString:@"{Quality/Bitrate}"])
{
[self.job addObserver:self forKeyPath:@"video.qualityType" options:0 context:HBAutoNamerContext];
[self.job addObserver:self forKeyPath:@"video.avgBitrate" options:0 context:HBAutoNamerContext];
[self.job addObserver:self forKeyPath:@"video.quality" options:0 context:HBAutoNamerContext];
}
}
}
- (void)removeJobObservers
{
for (NSString *formatKey in self.format)
{
if ([formatKey isEqualToString:@"{Chapters}"])
{
[self.job removeObserver:self forKeyPath:@"range.chapterStart" context:HBAutoNamerContext];
[self.job removeObserver:self forKeyPath:@"range.chapterStop" context:HBAutoNamerContext];
}
else if ([formatKey isEqualToString:@"{Quality/Bitrate}"])
{
[self.job removeObserver:self forKeyPath:@"video.qualityType" context:HBAutoNamerContext];
[self.job removeObserver:self forKeyPath:@"video.avgBitrate" context:HBAutoNamerContext];
[self.job removeObserver:self forKeyPath:@"video.quality" context:HBAutoNamerContext];
}
}
}
- (void)updateFileName
{
NSUndoManager *undo = self.job.undo;
if ([[NSUserDefaults standardUserDefaults] boolForKey:@"DefaultAutoNaming"] && self.job && !(undo.isUndoing || undo.isRedoing))
{
// Generate a new file name
NSString *fileName = [HBUtilities automaticNameForJob:self.job];
// Swap the old one with the new one
self.job.outputFileName = [NSString stringWithFormat:@"%@.%@", fileName, self.job.outputFileName.pathExtension];
}
}
@end
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