Foundation/NSUserDefaults.swift - third_party/swift-corelibs-foundation - Git at Google

 // This source file is part of the Swift.org open source project
 //
 // Copyright (c) 2014 - 2015 Apple Inc. and the Swift project authors
 // Licensed under Apache License v2.0 with Runtime Library Exception
 //
 // See http://swift.org/LICENSE.txt for license information
 // See http://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
 //

 import CoreFoundation

 public let NSGlobalDomain: String = "NSGlobalDomain"
 public let NSArgumentDomain: String = "NSArgumentDomain"
 public let NSRegistrationDomain: String = "NSRegistrationDomain"

 private var registeredDefaults = [String: AnyObject]()
 private var sharedDefaults = NSUserDefaults()

 public class NSUserDefaults : NSObject {
     private let suite: String?

     public class func standardUserDefaults() -> NSUserDefaults {
         return sharedDefaults
     }

     public class func resetStandardUserDefaults() {
         //sharedDefaults.synchronize()
         //sharedDefaults = NSUserDefaults()
     }

     public convenience override init() {
         self.init(suiteName: nil)!
     }

     /// nil suite means use the default search list that +standardUserDefaults uses
     public init?(suiteName suitename: String?) {
         suite = suitename
     }

     public func objectForKey(defaultName: String) -> AnyObject? {
         func getFromRegistered() -> AnyObject? {
             return registeredDefaults[defaultName]
         }

         guard let anObj = CFPreferencesCopyAppValue(defaultName._cfObject, suite?._cfObject ?? kCFPreferencesCurrentApplication) else {
             return getFromRegistered()
         }

         //Force the returned value to an NSObject
         switch CFGetTypeID(anObj) {
         case CFStringGetTypeID():
             return (anObj as! CFString)._nsObject

         case CFNumberGetTypeID():
             return (anObj as! CFNumber)._nsObject

         case CFURLGetTypeID():
             return (anObj as! CFURL)._nsObject

         case CFArrayGetTypeID():
             return (anObj as! CFArray)._nsObject

         case CFDictionaryGetTypeID():
             return (anObj as! CFDictionary)._nsObject

         case CFDataGetTypeID():
             return (anObj as! CFData)._nsObject

         default:
             return getFromRegistered()
         }
     }
     public func setObject(value: AnyObject?, forKey defaultName: String) {
         guard let value = value else {
             CFPreferencesSetAppValue(defaultName._cfObject, nil, suite?._cfObject ?? kCFPreferencesCurrentApplication)
             return
         }

         var cfType: CFTypeRef? = nil

 		//FIXME: is this needed? Am I overcomplicating things?
         //Foundation types
         if let bType = value as? NSNumber {
             cfType = bType._cfObject
         } else if let bType = value as? NSString {
             cfType = bType._cfObject
         } else if let bType = value as? NSArray {
             cfType = bType._cfObject
         } else if let bType = value as? NSDictionary {
             cfType = bType._cfObject
         } else if let bType = value as? NSURL {
 			setURL(bType, forKey: defaultName)
 			return
         } else if let bType = value as? NSData {
             cfType = bType._cfObject
         }

         CFPreferencesSetAppValue(defaultName._cfObject, cfType, suite?._cfObject ?? kCFPreferencesCurrentApplication)
     }
     public func removeObjectForKey(defaultName: String) {
         CFPreferencesSetAppValue(defaultName._cfObject, nil, suite?._cfObject ?? kCFPreferencesCurrentApplication)
     }

     public func stringForKey(defaultName: String) -> String? {
         guard let aVal = objectForKey(defaultName), bVal = aVal as? NSString else {
             return nil
         }
         return bVal._swiftObject
     }
     public func arrayForKey(defaultName: String) -> [AnyObject]? {
         guard let aVal = objectForKey(defaultName), bVal = aVal as? NSArray else {
             return nil
         }
         return bVal._swiftObject
     }
     public func dictionaryForKey(defaultName: String) -> [String : AnyObject]? {
         guard let aVal = objectForKey(defaultName), bVal = aVal as? NSDictionary else {
             return nil
         }
         //This got out of hand fast...
         let cVal = bVal._swiftObject
         enum convErr: ErrorProtocol {
             case ConvErr
         }
         do {
             let dVal = try cVal.map({ (key, val) -> (String, AnyObject) in
                 if let strKey = key as? NSString {
                     return (strKey._swiftObject, val)
                 } else {
                     throw convErr.ConvErr
                 }
             })
             var eVal = [String : AnyObject]()

             for (key, value) in dVal {
                 eVal[key] = value
             }

             return eVal
         } catch _ { }
         return nil
     }
     public func dataForKey(defaultName: String) -> NSData? {
         guard let aVal = objectForKey(defaultName), bVal = aVal as? NSData else {
             return nil
         }
         return bVal
     }
     public func stringArrayForKey(defaultName: String) -> [String]? {
         guard let aVal = objectForKey(defaultName), bVal = aVal as? NSArray else {
             return nil
         }
         return _expensivePropertyListConversion(bVal) as? [String]
     }
     public func integerForKey(defaultName: String) -> Int {
         guard let aVal = objectForKey(defaultName), bVal = aVal as? NSNumber else {
             return 0
         }
         return bVal.integerValue
     }
     public func floatForKey(defaultName: String) -> Float {
         guard let aVal = objectForKey(defaultName), bVal = aVal as? NSNumber else {
             return 0
         }
         return bVal.floatValue
     }
     public func doubleForKey(defaultName: String) -> Double {
         guard let aVal = objectForKey(defaultName), bVal = aVal as? NSNumber else {
             return 0
         }
         return bVal.doubleValue
     }
     public func boolForKey(defaultName: String) -> Bool {
         guard let aVal = objectForKey(defaultName), bVal = aVal as? NSNumber else {
             return false
         }
         return bVal.boolValue
     }
     public func URLForKey(defaultName: String) -> NSURL? {
         guard let aVal = objectForKey(defaultName) else {
             return nil
         }

         if let bVal = aVal as? NSString {
             let cVal = bVal.stringByExpandingTildeInPath

             return NSURL(fileURLWithPath: cVal)
         } else if let bVal = aVal as? NSData {
             return NSKeyedUnarchiver.unarchiveObjectWithData(bVal) as? NSURL
         }

         return nil
     }

     public func setInteger(value: Int, forKey defaultName: String) {
         setObject(NSNumber(integer: value), forKey: defaultName)
     }
     public func setFloat(value: Float, forKey defaultName: String) {
         setObject(NSNumber(float: value), forKey: defaultName)
     }
     public func setDouble(value: Double, forKey defaultName: String) {
         setObject(NSNumber(double: value), forKey: defaultName)
     }
     public func setBool(value: Bool, forKey defaultName: String) {
         setObject(NSNumber(bool: value), forKey: defaultName)
     }
     public func setURL(url: NSURL?, forKey defaultName: String) {
 		if let url = url {
             //FIXME: CFURLIsFileReferenceURL is limited to OS X/iOS
             #if os(OSX) || os(iOS)
                 //FIXME: no SwiftFoundation version of CFURLIsFileReferenceURL at time of writing!
                 if !CFURLIsFileReferenceURL(url._cfObject) {
                     //FIXME: stringByAbbreviatingWithTildeInPath isn't implemented in SwiftFoundation
                     //TODO: use stringByAbbreviatingWithTildeInPath when it is
                     let urlPath = url.path!

                     setObject(urlPath._nsObject, forKey: defaultName)
                     return
                 }
             #else
                 if let urlPath = url.path {
                     //FIXME: stringByAbbreviatingWithTildeInPath isn't implemented in SwiftFoundation
                     //TODO: use stringByAbbreviatingWithTildeInPath when it is
                     setObject(urlPath._nsObject, forKey: defaultName)
                     return
                 }
             #endif
             let data = NSKeyedArchiver.archivedDataWithRootObject(url)
             setObject(data, forKey: defaultName)
         } else {
             setObject(nil, forKey: defaultName)
         }
     }

     public func registerDefaults(registrationDictionary: [String : AnyObject]) {
         for (key, value) in registrationDictionary {
             registeredDefaults[key] = value
         }
     }

     public func addSuiteNamed(suiteName: String) {
         CFPreferencesAddSuitePreferencesToApp(kCFPreferencesCurrentApplication, suiteName._cfObject)
     }
     public func removeSuiteNamed(suiteName: String) {
         CFPreferencesRemoveSuitePreferencesFromApp(kCFPreferencesCurrentApplication, suiteName._cfObject)
     }

     public func dictionaryRepresentation() -> [String : AnyObject] {
         NSUnimplemented()
         /*
         Currently crashes the compiler.
         guard let aPref = CFPreferencesCopyMultiple(nil, kCFPreferencesCurrentApplication, kCFPreferencesCurrentUser, kCFPreferencesCurrentHost),
             bPref = (aPref._swiftObject) as? [NSString: AnyObject] else {
                 return registeredDefaults
         }
         var allDefaults = registeredDefaults

         for (key, value) in bPref {
             allDefaults[key._swiftObject] = value
         }

         return allDefaults
         */
     }

     public var volatileDomainNames: [String] { NSUnimplemented() }
     public func volatileDomainForName(domainName: String) -> [String : AnyObject] { NSUnimplemented() }
     public func setVolatileDomain(domain: [String : AnyObject], forName domainName: String) { NSUnimplemented() }
     public func removeVolatileDomainForName(domainName: String) { NSUnimplemented() }

     public func persistentDomainForName(domainName: String) -> [String : AnyObject]? { NSUnimplemented() }
     public func setPersistentDomain(domain: [String : AnyObject], forName domainName: String) { NSUnimplemented() }
     public func removePersistentDomainForName(domainName: String) { NSUnimplemented() }

     public func synchronize() -> Bool {
         return CFPreferencesAppSynchronize(kCFPreferencesCurrentApplication)
     }

     public func objectIsForcedForKey(key: String) -> Bool { NSUnimplemented() }
     public func objectIsForcedForKey(key: String, inDomain domain: String) -> Bool { NSUnimplemented() }
 }

 public let NSUserDefaultsDidChangeNotification: String = "NSUserDefaultsDidChangeNotification"
	// This source file is part of the Swift.org open source project
	//
	// Copyright (c) 2014 - 2015 Apple Inc. and the Swift project authors
	// Licensed under Apache License v2.0 with Runtime Library Exception
	//
	// See http://swift.org/LICENSE.txt for license information
	// See http://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
	//

	import CoreFoundation

	public let NSGlobalDomain: String = "NSGlobalDomain"
	public let NSArgumentDomain: String = "NSArgumentDomain"
	public let NSRegistrationDomain: String = "NSRegistrationDomain"

	private var registeredDefaults = [String: AnyObject]()
	private var sharedDefaults = NSUserDefaults()

	public class NSUserDefaults : NSObject {
	private let suite: String?

	public class func standardUserDefaults() -> NSUserDefaults {
	return sharedDefaults
	}

	public class func resetStandardUserDefaults() {
	//sharedDefaults.synchronize()
	//sharedDefaults = NSUserDefaults()
	}

	public convenience override init() {
	self.init(suiteName: nil)!
	}

	/// nil suite means use the default search list that +standardUserDefaults uses
	public init?(suiteName suitename: String?) {
	suite = suitename
	}

	public func objectForKey(defaultName: String) -> AnyObject? {
	func getFromRegistered() -> AnyObject? {
	return registeredDefaults[defaultName]
	}

	guard let anObj = CFPreferencesCopyAppValue(defaultName._cfObject, suite?._cfObject ?? kCFPreferencesCurrentApplication) else {
	return getFromRegistered()
	}

	//Force the returned value to an NSObject
	switch CFGetTypeID(anObj) {
	case CFStringGetTypeID():
	return (anObj as! CFString)._nsObject

	case CFNumberGetTypeID():
	return (anObj as! CFNumber)._nsObject

	case CFURLGetTypeID():
	return (anObj as! CFURL)._nsObject

	case CFArrayGetTypeID():
	return (anObj as! CFArray)._nsObject

	case CFDictionaryGetTypeID():
	return (anObj as! CFDictionary)._nsObject

	case CFDataGetTypeID():
	return (anObj as! CFData)._nsObject

	default:
	return getFromRegistered()
	}
	}
	public func setObject(value: AnyObject?, forKey defaultName: String) {
	guard let value = value else {
	CFPreferencesSetAppValue(defaultName._cfObject, nil, suite?._cfObject ?? kCFPreferencesCurrentApplication)
	return
	}

	var cfType: CFTypeRef? = nil

	//FIXME: is this needed? Am I overcomplicating things?
	//Foundation types
	if let bType = value as? NSNumber {
	cfType = bType._cfObject
	} else if let bType = value as? NSString {
	cfType = bType._cfObject
	} else if let bType = value as? NSArray {
	cfType = bType._cfObject
	} else if let bType = value as? NSDictionary {
	cfType = bType._cfObject
	} else if let bType = value as? NSURL {
	setURL(bType, forKey: defaultName)
	return
	} else if let bType = value as? NSData {
	cfType = bType._cfObject
	}

	CFPreferencesSetAppValue(defaultName._cfObject, cfType, suite?._cfObject ?? kCFPreferencesCurrentApplication)
	}
	public func removeObjectForKey(defaultName: String) {
	CFPreferencesSetAppValue(defaultName._cfObject, nil, suite?._cfObject ?? kCFPreferencesCurrentApplication)
	}

	public func stringForKey(defaultName: String) -> String? {
	guard let aVal = objectForKey(defaultName), bVal = aVal as? NSString else {
	return nil
	}
	return bVal._swiftObject
	}
	public func arrayForKey(defaultName: String) -> [AnyObject]? {
	guard let aVal = objectForKey(defaultName), bVal = aVal as? NSArray else {
	return nil
	}
	return bVal._swiftObject
	}
	public func dictionaryForKey(defaultName: String) -> [String : AnyObject]? {
	guard let aVal = objectForKey(defaultName), bVal = aVal as? NSDictionary else {
	return nil
	}
	//This got out of hand fast...
	let cVal = bVal._swiftObject
	enum convErr: ErrorProtocol {
	case ConvErr
	}
	do {
	let dVal = try cVal.map({ (key, val) -> (String, AnyObject) in
	if let strKey = key as? NSString {
	return (strKey._swiftObject, val)
	} else {
	throw convErr.ConvErr
	}
	})
	var eVal = [String : AnyObject]()

	for (key, value) in dVal {
	eVal[key] = value
	}

	return eVal
	} catch _ { }
	return nil
	}
	public func dataForKey(defaultName: String) -> NSData? {
	guard let aVal = objectForKey(defaultName), bVal = aVal as? NSData else {
	return nil
	}
	return bVal
	}
	public func stringArrayForKey(defaultName: String) -> [String]? {
	guard let aVal = objectForKey(defaultName), bVal = aVal as? NSArray else {
	return nil
	}
	return _expensivePropertyListConversion(bVal) as? [String]
	}
	public func integerForKey(defaultName: String) -> Int {
	guard let aVal = objectForKey(defaultName), bVal = aVal as? NSNumber else {
	return 0
	}
	return bVal.integerValue
	}
	public func floatForKey(defaultName: String) -> Float {
	guard let aVal = objectForKey(defaultName), bVal = aVal as? NSNumber else {
	return 0
	}
	return bVal.floatValue
	}
	public func doubleForKey(defaultName: String) -> Double {
	guard let aVal = objectForKey(defaultName), bVal = aVal as? NSNumber else {
	return 0
	}
	return bVal.doubleValue
	}
	public func boolForKey(defaultName: String) -> Bool {
	guard let aVal = objectForKey(defaultName), bVal = aVal as? NSNumber else {
	return false
	}
	return bVal.boolValue
	}
	public func URLForKey(defaultName: String) -> NSURL? {
	guard let aVal = objectForKey(defaultName) else {
	return nil
	}

	if let bVal = aVal as? NSString {
	let cVal = bVal.stringByExpandingTildeInPath

	return NSURL(fileURLWithPath: cVal)
	} else if let bVal = aVal as? NSData {
	return NSKeyedUnarchiver.unarchiveObjectWithData(bVal) as? NSURL
	}

	return nil
	}

	public func setInteger(value: Int, forKey defaultName: String) {
	setObject(NSNumber(integer: value), forKey: defaultName)
	}
	public func setFloat(value: Float, forKey defaultName: String) {
	setObject(NSNumber(float: value), forKey: defaultName)
	}
	public func setDouble(value: Double, forKey defaultName: String) {
	setObject(NSNumber(double: value), forKey: defaultName)
	}
	public func setBool(value: Bool, forKey defaultName: String) {
	setObject(NSNumber(bool: value), forKey: defaultName)
	}
	public func setURL(url: NSURL?, forKey defaultName: String) {
	if let url = url {
	//FIXME: CFURLIsFileReferenceURL is limited to OS X/iOS
	#if os(OSX) \|\| os(iOS)
	//FIXME: no SwiftFoundation version of CFURLIsFileReferenceURL at time of writing!
	if !CFURLIsFileReferenceURL(url._cfObject) {
	//FIXME: stringByAbbreviatingWithTildeInPath isn't implemented in SwiftFoundation
	//TODO: use stringByAbbreviatingWithTildeInPath when it is
	let urlPath = url.path!

	setObject(urlPath._nsObject, forKey: defaultName)
	return
	}
	#else
	if let urlPath = url.path {
	//FIXME: stringByAbbreviatingWithTildeInPath isn't implemented in SwiftFoundation
	//TODO: use stringByAbbreviatingWithTildeInPath when it is
	setObject(urlPath._nsObject, forKey: defaultName)
	return
	}
	#endif
	let data = NSKeyedArchiver.archivedDataWithRootObject(url)
	setObject(data, forKey: defaultName)
	} else {
	setObject(nil, forKey: defaultName)
	}
	}

	public func registerDefaults(registrationDictionary: [String : AnyObject]) {
	for (key, value) in registrationDictionary {
	registeredDefaults[key] = value
	}
	}

	public func addSuiteNamed(suiteName: String) {
	CFPreferencesAddSuitePreferencesToApp(kCFPreferencesCurrentApplication, suiteName._cfObject)
	}
	public func removeSuiteNamed(suiteName: String) {
	CFPreferencesRemoveSuitePreferencesFromApp(kCFPreferencesCurrentApplication, suiteName._cfObject)
	}

	public func dictionaryRepresentation() -> [String : AnyObject] {
	NSUnimplemented()
	/*
	Currently crashes the compiler.
	guard let aPref = CFPreferencesCopyMultiple(nil, kCFPreferencesCurrentApplication, kCFPreferencesCurrentUser, kCFPreferencesCurrentHost),
	bPref = (aPref._swiftObject) as? [NSString: AnyObject] else {
	return registeredDefaults
	}
	var allDefaults = registeredDefaults

	for (key, value) in bPref {
	allDefaults[key._swiftObject] = value
	}

	return allDefaults
	*/
	}

	public var volatileDomainNames: [String] { NSUnimplemented() }
	public func volatileDomainForName(domainName: String) -> [String : AnyObject] { NSUnimplemented() }
	public func setVolatileDomain(domain: [String : AnyObject], forName domainName: String) { NSUnimplemented() }
	public func removeVolatileDomainForName(domainName: String) { NSUnimplemented() }

	public func persistentDomainForName(domainName: String) -> [String : AnyObject]? { NSUnimplemented() }
	public func setPersistentDomain(domain: [String : AnyObject], forName domainName: String) { NSUnimplemented() }
	public func removePersistentDomainForName(domainName: String) { NSUnimplemented() }

	public func synchronize() -> Bool {
	return CFPreferencesAppSynchronize(kCFPreferencesCurrentApplication)
	}

	public func objectIsForcedForKey(key: String) -> Bool { NSUnimplemented() }
	public func objectIsForcedForKey(key: String, inDomain domain: String) -> Bool { NSUnimplemented() }
	}

	public let NSUserDefaultsDidChangeNotification: String = "NSUserDefaultsDidChangeNotification"