diff options
Diffstat (limited to 'platform/darwin/src/MGLStyle.mm')
| -rw-r--r-- | platform/darwin/src/MGLStyle.mm | 136 |
1 files changed, 136 insertions, 0 deletions
diff --git a/platform/darwin/src/MGLStyle.mm b/platform/darwin/src/MGLStyle.mm index eb838085d7..1e0a2e02b7 100644 --- a/platform/darwin/src/MGLStyle.mm +++ b/platform/darwin/src/MGLStyle.mm @@ -21,6 +21,7 @@ #import "MGLSource.h" #import "MGLTileSource_Private.h" #import "MGLVectorSource.h" +#import "MGLVectorSource+MGLAdditions.h" #import "MGLRasterSource.h" #import "MGLShapeSource.h" @@ -48,11 +49,34 @@ #import "NSImage+MGLAdditions.h" #endif +/** + Model class for localization changes. + */ +@interface MGLTextLanguage: NSObject +@property (strong, nonatomic) NSString *originalTextField; +@property (strong, nonatomic) NSString *updatedTextField; + +- (instancetype)initWithTextLanguage:(NSString *)originalTextField updatedTextField:(NSString *)updatedTextField; + +@end + +@implementation MGLTextLanguage +- (instancetype)initWithTextLanguage:(NSString *)originalTextField updatedTextField:(NSString *)updatedTextField +{ + if (self = [super init]) { + _originalTextField = originalTextField; + _updatedTextField = updatedTextField; + } + return self; +} +@end + @interface MGLStyle() @property (nonatomic, readwrite, weak) MGLMapView *mapView; @property (readonly, copy, nullable) NSURL *URL; @property (nonatomic, readwrite, strong) NS_MUTABLE_DICTIONARY_OF(NSString *, MGLOpenGLStyleLayer *) *openGLLayers; +@property (nonatomic) NS_MUTABLE_DICTIONARY_OF(NSString *, NS_DICTIONARY_OF(NSObject *, MGLTextLanguage *) *) *localizedLayersByIdentifier; @end @@ -116,6 +140,7 @@ static NSURL *MGLStyleURL_emerald; if (self = [super init]) { _mapView = mapView; _openGLLayers = [NSMutableDictionary dictionary]; + _localizedLayersByIdentifier = [NSMutableDictionary dictionary]; } return self; } @@ -609,4 +634,115 @@ static NSURL *MGLStyleURL_emerald; self.URL ? [NSString stringWithFormat:@"\"%@\"", self.URL] : self.URL]; } +#pragma mark Style language preferences + +- (void)setLocalizesLabels:(BOOL)localizesLabels +{ + if (_localizesLabels != localizesLabels) { + _localizesLabels = localizesLabels; + } else { + return; + } + + if (_localizesLabels) { + NSString *preferredLanguage = [MGLVectorSource preferredMapboxStreetsLanguage]; + NSMutableDictionary *localizedKeysByKeyBySourceIdentifier = [NSMutableDictionary dictionary]; + for (MGLSymbolStyleLayer *layer in self.layers) { + if (![layer isKindOfClass:[MGLSymbolStyleLayer class]]) { + continue; + } + + MGLVectorSource *source = (MGLVectorSource *)[self sourceWithIdentifier:layer.sourceIdentifier]; + if (![source isKindOfClass:[MGLVectorSource class]] || !source.mapboxStreets) { + continue; + } + + NSDictionary *localizedKeysByKey = localizedKeysByKeyBySourceIdentifier[layer.sourceIdentifier]; + if (!localizedKeysByKey) { + localizedKeysByKey = localizedKeysByKeyBySourceIdentifier[layer.sourceIdentifier] = [source localizedKeysByKeyForPreferredLanguage:preferredLanguage]; + } + + NSString *(^stringByLocalizingString)(NSString *) = ^ NSString * (NSString *string) { + NSMutableString *localizedString = string.mutableCopy; + [localizedKeysByKey enumerateKeysAndObjectsUsingBlock:^(NSString * _Nonnull key, NSString * _Nonnull localizedKey, BOOL * _Nonnull stop) { + NSAssert([key isKindOfClass:[NSString class]], @"key is not a string"); + NSAssert([localizedKey isKindOfClass:[NSString class]], @"localizedKey is not a string"); + [localizedString replaceOccurrencesOfString:[NSString stringWithFormat:@"{%@}", key] + withString:[NSString stringWithFormat:@"{%@}", localizedKey] + options:0 + range:NSMakeRange(0, localizedString.length)]; + }]; + return localizedString; + }; + + if ([layer.text isKindOfClass:[MGLConstantStyleValue class]]) { + NSString *textField = [(MGLConstantStyleValue<NSString *> *)layer.text rawValue]; + NSString *localizingString = stringByLocalizingString(textField); + if (![textField isEqualToString:localizingString]) { + MGLTextLanguage *textLanguage = [[MGLTextLanguage alloc] initWithTextLanguage:textField + updatedTextField:localizingString]; + [self.localizedLayersByIdentifier setObject:@{ textField : textLanguage } forKey:layer.identifier]; + layer.text = [MGLStyleValue<NSString *> valueWithRawValue:localizingString]; + } + } + else if ([layer.text isKindOfClass:[MGLCameraStyleFunction class]]) { + MGLCameraStyleFunction *function = (MGLCameraStyleFunction<NSString *> *)layer.text; + NSMutableDictionary *stops = function.stops.mutableCopy; + NSMutableDictionary *cameraStops = [NSMutableDictionary dictionary]; + [stops enumerateKeysAndObjectsUsingBlock:^(NSNumber *zoomLevel, MGLConstantStyleValue<NSString *> *stop, BOOL *done) { + NSString *textField = stop.rawValue; + NSString *localizingString = stringByLocalizingString(textField); + if (![textField isEqualToString:localizingString]) { + MGLTextLanguage *textLanguage = [[MGLTextLanguage alloc] initWithTextLanguage:textField + updatedTextField:localizingString]; + [cameraStops setObject:textLanguage forKey:zoomLevel]; + stops[zoomLevel] = [MGLStyleValue<NSString *> valueWithRawValue:localizingString]; + } + + }]; + if (cameraStops.count > 0) { + [self.localizedLayersByIdentifier setObject:cameraStops forKey:layer.identifier]; + } + function.stops = stops; + layer.text = function; + } + } + } else { + + [self.localizedLayersByIdentifier enumerateKeysAndObjectsUsingBlock:^(NSString *identifier, NSDictionary<NSObject *, MGLTextLanguage *> *textFields, BOOL *done) { + MGLSymbolStyleLayer *layer = (MGLSymbolStyleLayer *)[self.mapView.style layerWithIdentifier:identifier]; + + if ([layer.text isKindOfClass:[MGLConstantStyleValue class]]) { + NSString *textField = [(MGLConstantStyleValue<NSString *> *)layer.text rawValue]; + [textFields enumerateKeysAndObjectsUsingBlock:^(NSObject *originalLanguage, MGLTextLanguage *textLanguage, BOOL *done) { + if ([textLanguage.updatedTextField isEqualToString:textField]) { + layer.text = [MGLStyleValue<NSString *> valueWithRawValue:textLanguage.originalTextField]; + } + }]; + + } + else if ([layer.text isKindOfClass:[MGLCameraStyleFunction class]]) { + MGLCameraStyleFunction *function = (MGLCameraStyleFunction<NSString *> *)layer.text; + NSMutableDictionary *stops = function.stops.mutableCopy; + [textFields enumerateKeysAndObjectsUsingBlock:^(NSObject *zoomKey, MGLTextLanguage *textLanguage, BOOL *done) { + if ([zoomKey isKindOfClass:[NSNumber class]]) { + NSNumber *zoomLevel = (NSNumber*)zoomKey; + MGLConstantStyleValue<NSString *> *stop = [stops objectForKey:zoomLevel]; + NSString *textField = stop.rawValue; + if ([textLanguage.updatedTextField isEqualToString:textField]) { + stops[zoomLevel] = [MGLStyleValue<NSString *> valueWithRawValue:textLanguage.originalTextField]; + } + } + }]; + + function.stops = stops; + layer.text = function; + } + + }]; + + self.localizedLayersByIdentifier = [NSMutableDictionary dictionary]; + } +} + @end |