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Diffstat (limited to 'platform/darwin/src/MGLVectorTileSource.mm')
-rw-r--r-- | platform/darwin/src/MGLVectorTileSource.mm | 126 |
1 files changed, 126 insertions, 0 deletions
diff --git a/platform/darwin/src/MGLVectorTileSource.mm b/platform/darwin/src/MGLVectorTileSource.mm new file mode 100644 index 0000000000..5678d9c0bb --- /dev/null +++ b/platform/darwin/src/MGLVectorTileSource.mm @@ -0,0 +1,126 @@ +#import "MGLVectorTileSource_Private.h" + +#import "MGLFeature_Private.h" +#import "MGLSource_Private.h" +#import "MGLTileSource_Private.h" +#import "MGLStyle_Private.h" +#import "MGLMapView_Private.h" + +#import "NSPredicate+MGLAdditions.h" +#import "NSURL+MGLAdditions.h" + +#include <mbgl/map/map.hpp> +#include <mbgl/style/sources/vector_source.hpp> +#include <mbgl/renderer/renderer.hpp> + +@interface MGLVectorTileSource () + +@property (nonatomic, readonly) mbgl::style::VectorSource *rawSource; + +@end + +@implementation MGLVectorTileSource + +- (instancetype)initWithIdentifier:(NSString *)identifier configurationURL:(NSURL *)configurationURL { + auto source = std::make_unique<mbgl::style::VectorSource>(identifier.UTF8String, + configurationURL.mgl_URLByStandardizingScheme.absoluteString.UTF8String); + return self = [super initWithPendingSource:std::move(source)]; +} + +- (instancetype)initWithIdentifier:(NSString *)identifier tileURLTemplates:(NS_ARRAY_OF(NSString *) *)tileURLTemplates options:(nullable NS_DICTIONARY_OF(MGLTileSourceOption, id) *)options { + mbgl::Tileset tileSet = MGLTileSetFromTileURLTemplates(tileURLTemplates, options); + auto source = std::make_unique<mbgl::style::VectorSource>(identifier.UTF8String, tileSet); + return self = [super initWithPendingSource:std::move(source)]; +} + +- (mbgl::style::VectorSource *)rawSource { + return (mbgl::style::VectorSource *)super.rawSource; +} + +- (NSURL *)configurationURL { + auto url = self.rawSource->getURL(); + return url ? [NSURL URLWithString:@(url->c_str())] : nil; +} + +- (NSString *)attributionHTMLString { + auto attribution = self.rawSource->getAttribution(); + return attribution ? @(attribution->c_str()) : nil; +} + +- (NS_ARRAY_OF(id <MGLFeature>) *)featuresInSourceLayersWithIdentifiers:(NS_SET_OF(NSString *) *)sourceLayerIdentifiers predicate:(nullable NSPredicate *)predicate { + + mbgl::optional<std::vector<std::string>> optionalSourceLayerIDs; + if (sourceLayerIdentifiers) { + __block std::vector<std::string> layerIDs; + layerIDs.reserve(sourceLayerIdentifiers.count); + [sourceLayerIdentifiers enumerateObjectsUsingBlock:^(NSString * _Nonnull identifier, BOOL * _Nonnull stop) { + layerIDs.push_back(identifier.UTF8String); + }]; + optionalSourceLayerIDs = layerIDs; + } + + mbgl::optional<mbgl::style::Filter> optionalFilter; + if (predicate) { + optionalFilter = predicate.mgl_filter; + } + + std::vector<mbgl::Feature> features; + if (self.mapView) { + features = self.mapView.renderer->querySourceFeatures(self.rawSource->getID(), { optionalSourceLayerIDs, optionalFilter }); + } + return MGLFeaturesFromMBGLFeatures(features); +} + +@end + +@implementation MGLVectorTileSource (Private) + ++ (NS_SET_OF(NSString *) *)mapboxStreetsLanguages { + // https://www.mapbox.com/vector-tiles/mapbox-streets-v7/#overview + static dispatch_once_t onceToken; + static NS_SET_OF(NSString *) *mapboxStreetsLanguages; + dispatch_once(&onceToken, ^{ + // https://www.mapbox.com/vector-tiles/mapbox-streets-v7/#overview + mapboxStreetsLanguages = [NSSet setWithObjects:@"ar", @"de", @"en", @"es", @"fr", @"pt", @"ru", @"zh", @"zh-Hans", nil]; + }); + return mapboxStreetsLanguages; +} + ++ (NSString *)preferredMapboxStreetsLanguage { + NSArray<NSString *> *supportedLanguages = [MGLVectorTileSource mapboxStreetsLanguages].allObjects; + NSArray<NSString *> *preferredLanguages = [NSBundle preferredLocalizationsFromArray:supportedLanguages + forPreferences:[NSLocale preferredLanguages]]; + NSString *mostSpecificLanguage; + for (NSString *language in preferredLanguages) { + if (language.length > mostSpecificLanguage.length) { + mostSpecificLanguage = language; + } + } + return mostSpecificLanguage ?: @"en"; +} + +- (BOOL)isMapboxStreets { + NSURL *url = self.configurationURL; + if (![url.scheme isEqualToString:@"mapbox"]) { + return NO; + } + NSArray *identifiers = [url.host componentsSeparatedByString:@","]; + return [identifiers containsObject:@"mapbox.mapbox-streets-v7"] || [identifiers containsObject:@"mapbox.mapbox-streets-v6"]; +} + +- (NS_DICTIONARY_OF(NSString *, NSString *) *)localizedKeysByKeyForPreferredLanguage:(nullable NSString *)preferredLanguage { + if (!self.mapboxStreets) { + return @{}; + } + + // Replace {name} and {name_*} with the matching localized name tag. + NSString *localizedKey = preferredLanguage ? [NSString stringWithFormat:@"name_%@", preferredLanguage] : @"name"; + NSMutableDictionary *localizedKeysByKey = [NSMutableDictionary dictionaryWithObject:localizedKey forKey:@"name"]; + for (NSString *languageCode in [MGLVectorTileSource mapboxStreetsLanguages]) { + NSString *key = [NSString stringWithFormat:@"name_%@", languageCode]; + localizedKeysByKey[key] = localizedKey; + } + return localizedKeysByKey; +} + +@end |