101 lines
2.3 KiB
Objective-C
101 lines
2.3 KiB
Objective-C
/**
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* Copyright (c) 2015-present, Facebook, Inc.
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* All rights reserved.
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*
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* This source code is licensed under the BSD-style license found in the
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* LICENSE file in the root directory of this source tree. An additional grant
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* of patent rights can be found in the PATENTS file in the same directory.
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*/
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#import "RCTSettingsManager.h"
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#import "RCTBridge.h"
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#import "RCTConvert.h"
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#import "RCTEventDispatcher.h"
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@implementation RCTSettingsManager
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{
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BOOL _ignoringUpdates;
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NSUserDefaults *_defaults;
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}
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@synthesize bridge = _bridge;
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RCT_EXPORT_MODULE()
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- (instancetype)init
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{
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return [self initWithUserDefaults:[NSUserDefaults standardUserDefaults]];
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}
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- (instancetype)initWithUserDefaults:(NSUserDefaults *)defaults
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{
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if ((self = [super init])) {
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_defaults = defaults;
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[[NSNotificationCenter defaultCenter] addObserver:self
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selector:@selector(userDefaultsDidChange:)
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name:NSUserDefaultsDidChangeNotification
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object:_defaults];
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}
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return self;
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}
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- (void)dealloc
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{
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[[NSNotificationCenter defaultCenter] removeObserver:self];
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}
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- (void)userDefaultsDidChange:(NSNotification *)note
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{
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if (_ignoringUpdates) {
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return;
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}
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[_bridge.eventDispatcher sendDeviceEventWithName:@"settingsUpdated" body:[_defaults dictionaryRepresentation]];
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}
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- (NSDictionary *)constantsToExport
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{
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return @{
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@"settings": [_defaults dictionaryRepresentation]
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};
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}
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/**
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* Set one or more values in the settings.
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* TODO: would it be useful to have a callback for when this has completed?
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*/
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RCT_EXPORT_METHOD(setValues:(NSDictionary *)values)
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{
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_ignoringUpdates = YES;
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[values enumerateKeysAndObjectsUsingBlock:^(NSString *key, id json, BOOL *stop) {
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id plist = [RCTConvert NSPropertyList:json];
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if (plist) {
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[_defaults setObject:plist forKey:key];
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} else {
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[_defaults removeObjectForKey:key];
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}
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}];
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[_defaults synchronize];
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_ignoringUpdates = NO;
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}
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/**
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* Remove some values from the settings.
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*/
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RCT_EXPORT_METHOD(deleteValues:(NSStringArray *)keys)
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{
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_ignoringUpdates = YES;
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for (NSString *key in keys) {
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[_defaults removeObjectForKey:key];
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}
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[_defaults synchronize];
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_ignoringUpdates = NO;
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}
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@end
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