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#import "MGLTileSource_Private.h"
#import "MGLAttributionInfo_Private.h"
#import "MGLGeometry_Private.h"
#import "MGLRasterDEMSource.h"
#import "NSString+MGLAdditions.h"
#import "NSValue+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 MGLTileSourceOptionCoordinateBounds = @"MGLTileSourceOptionCoordinateBounds";
const MGLTileSourceOption MGLTileSourceOptionAttributionHTMLString = @"MGLTileSourceOptionAttributionHTMLString";
const MGLTileSourceOption MGLTileSourceOptionAttributionInfos = @"MGLTileSourceOptionAttributionInfos";
const MGLTileSourceOption MGLTileSourceOptionTileCoordinateSystem = @"MGLTileSourceOptionTileCoordinateSystem";
const MGLTileSourceOption MGLTileSourceOptionDEMEncoding = @"MGLTileSourceOptionDEMEncoding";
@implementation MGLTileSource
- (NSURL *)configurationURL {
[NSException raise:@"MGLAbstractClassException"
format:@"MGLTileSource is an abstract class"];
return nil;
}
- (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 (NSValue *coordinateBounds = options[MGLTileSourceOptionCoordinateBounds]) {
if (![coordinateBounds isKindOfClass:[NSValue class]]
&& strcmp(coordinateBounds.objCType, @encode(MGLCoordinateBounds)) == 0) {
[NSException raise:NSInvalidArgumentException
format:@"MGLTileSourceOptionCoordinateBounds must be set to an NSValue containing an MGLCoordinateBounds."];
}
tileSet.bounds = MGLLatLngBoundsFromCoordinateBounds(coordinateBounds.MGLCoordinateBoundsValue);
}
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;
}
}
if (NSNumber *demEncodingNumber = options[MGLTileSourceOptionDEMEncoding]) {
if (![demEncodingNumber isKindOfClass:[NSValue class]]) {
[NSException raise:NSInvalidArgumentException
format:@"MGLTileSourceOptionDEMEncoding must be set to an NSValue or NSNumber."];
}
MGLDEMEncoding demEncoding;
[demEncodingNumber getValue:&demEncoding];
switch (demEncoding) {
case MGLDEMEncodingMapbox:
tileSet.encoding = mbgl::Tileset::DEMEncoding::Mapbox;
break;
case MGLDEMEncodingTerrarium:
tileSet.encoding = mbgl::Tileset::DEMEncoding::Terrarium;
break;
}
}
return tileSet;
}
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