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#import "MGLVectorSource_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 MGLVectorSource ()
@property (nonatomic, readonly) mbgl::style::VectorSource *rawSource;
@end
@implementation MGLVectorSource
- (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 MGLVectorSource (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 = [MGLVectorSource 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 [MGLVectorSource mapboxStreetsLanguages]) {
NSString *key = [NSString stringWithFormat:@"name_%@", languageCode];
localizedKeysByKey[key] = localizedKey;
}
return localizedKeysByKey;
}
@end
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