1 files changed, 123 insertions, 0 deletions
diff --git a/platform/darwin/src/MGLTileSource.mm b/platform/darwin/src/MGLTileSource.mm
new file mode 100644
index 0000000000..522675bc88
--- /dev/null
+++ b/platform/darwin/src/MGLTileSource.mm
@@ -0,0 +1,123 @@
+#import "MGLTileSource_Private.h"
+
+#import "MGLAttributionInfo_Private.h"
+#import "NSString+MGLAdditions.h"
+
+#if TARGET_OS_IPHONE
+    #import <UIKit/UIKit.h>
+#else
+    #import <Cocoa/Cocoa.h>
+#endif
+
+#include <mbgl/util/tileset.hpp>
+
+const MGLTileSourceOption MGLTileSourceOptionMinimumZoomLevel = @"MGLTileSourceOptionMinimumZoomLevel";
+const MGLTileSourceOption MGLTileSourceOptionMaximumZoomLevel = @"MGLTileSourceOptionMaximumZoomLevel";
+const MGLTileSourceOption MGLTileSourceOptionAttributionHTMLString = @"MGLTileSourceOptionAttributionHTMLString";
+const MGLTileSourceOption MGLTileSourceOptionAttributionInfos = @"MGLTileSourceOptionAttributionInfos";
+const MGLTileSourceOption MGLTileSourceOptionTileCoordinateSystem = @"MGLTileSourceOptionTileCoordinateSystem";
+
+@implementation MGLTileSource
+
+- (instancetype)initWithIdentifier:(NSString *)identifier configurationURL:(NSURL *)configurationURL {
+    return [super initWithIdentifier:identifier];
+}
+
+- (instancetype)initWithIdentifier:(NSString *)identifier tileURLTemplates:(NS_ARRAY_OF(NSString *) *)tileURLTemplates options:(NS_DICTIONARY_OF(MGLTileSourceOption, id) *)options {
+    return [super initWithIdentifier:identifier];
+}
+
+- (NS_ARRAY_OF(MGLAttributionInfo *) *)attributionInfos {
+    return [self attributionInfosWithFontSize:0 linkColor:nil];
+}
+
+- (NS_ARRAY_OF(MGLAttributionInfo *) *)attributionInfosWithFontSize:(CGFloat)fontSize linkColor:(nullable MGLColor *)linkColor {
+    return [MGLAttributionInfo attributionInfosFromHTMLString:self.attributionHTMLString
+                                                     fontSize:fontSize
+                                                    linkColor:linkColor];
+}
+
+- (NSString *)attributionHTMLString {
+    [NSException raise:@"MGLAbstractClassException"
+                format:@"MGLTileSource is an abstract class"];
+    return nil;
+}
+
+@end
+
+mbgl::Tileset MGLTileSetFromTileURLTemplates(NS_ARRAY_OF(NSString *) *tileURLTemplates, NS_DICTIONARY_OF(MGLTileSourceOption, id) * _Nullable options) {
+    mbgl::Tileset tileSet;
+    
+    for (NSString *tileURLTemplate in tileURLTemplates) {
+        tileSet.tiles.push_back(tileURLTemplate.UTF8String);
+    }
+    
+    // set the minimum / maximum zoom range to the values specified by this class if they
+    // were set. otherwise, use the core objects default values
+    if (NSNumber *minimumZoomLevel = options[MGLTileSourceOptionMinimumZoomLevel]) {
+        if (![minimumZoomLevel isKindOfClass:[NSNumber class]]) {
+            [NSException raise:NSInvalidArgumentException
+                        format:@"MGLTileSourceOptionMinimumZoomLevel must be set to an NSNumber."];
+        }
+        tileSet.zoomRange.min = minimumZoomLevel.integerValue;
+    }
+    if (NSNumber *maximumZoomLevel = options[MGLTileSourceOptionMaximumZoomLevel]) {
+        if (![maximumZoomLevel isKindOfClass:[NSNumber class]]) {
+            [NSException raise:NSInvalidArgumentException
+                        format:@"MGLTileSourceOptionMinimumZoomLevel must be set to an NSNumber."];
+        }
+        tileSet.zoomRange.max = maximumZoomLevel.integerValue;
+    }
+    if (tileSet.zoomRange.min > tileSet.zoomRange.max) {
+        [NSException raise:NSInvalidArgumentException
+                    format:@"MGLTileSourceOptionMinimumZoomLevel must be less than MGLTileSourceOptionMaximumZoomLevel."];
+    }
+    
+    if (NSString *attribution = options[MGLTileSourceOptionAttributionHTMLString]) {
+        if (![attribution isKindOfClass:[NSString class]]) {
+            [NSException raise:NSInvalidArgumentException
+                        format:@"MGLTileSourceOptionAttributionHTMLString must be set to a string."];
+        }
+        tileSet.attribution = attribution.UTF8String;
+    }
+    
+    if (NSArray *attributionInfos = options[MGLTileSourceOptionAttributionInfos]) {
+        if (![attributionInfos isKindOfClass:[NSArray class]]) {
+            [NSException raise:NSInvalidArgumentException
+                        format:@"MGLTileSourceOptionAttributionInfos must be set to a string."];
+        }
+        
+        NSAttributedString *attributedString = [MGLAttributionInfo attributedStringForAttributionInfos:attributionInfos];
+#if TARGET_OS_IPHONE
+        static NSString * const NSExcludedElementsDocumentAttribute = @"ExcludedElements";
+#endif
+        NSDictionary *documentAttributes = @{
+            NSDocumentTypeDocumentAttribute: NSHTMLTextDocumentType,
+            NSCharacterEncodingDocumentAttribute: @(NSUTF8StringEncoding),
+            // The attribution string is meant to be a simple, inline fragment, not a full-fledged, validating document.
+            NSExcludedElementsDocumentAttribute: @[@"XML", @"DOCTYPE", @"html", @"head", @"meta", @"title", @"style", @"body", @"p"],
+        };
+        NSData *data = [attributedString dataFromRange:attributedString.mgl_wholeRange documentAttributes:documentAttributes error:NULL];
+        NSString *html = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];
+        tileSet.attribution = html.UTF8String;
+    }
+    
+    if (NSNumber *tileCoordinateSystemNumber = options[MGLTileSourceOptionTileCoordinateSystem]) {
+        if (![tileCoordinateSystemNumber isKindOfClass:[NSValue class]]) {
+            [NSException raise:NSInvalidArgumentException
+                        format:@"MGLTileSourceOptionTileCoordinateSystem must be set to an NSValue or NSNumber."];
+        }
+        MGLTileCoordinateSystem tileCoordinateSystem;
+        [tileCoordinateSystemNumber getValue:&tileCoordinateSystem];
+        switch (tileCoordinateSystem) {
+            case MGLTileCoordinateSystemXYZ:
+                tileSet.scheme = mbgl::Tileset::Scheme::XYZ;
+                break;
+            case MGLTileCoordinateSystemTMS:
+                tileSet.scheme = mbgl::Tileset::Scheme::TMS;
+                break;
+        }
+    }
+    
+    return tileSet;
+}