7d9018093a
This refactors the source removal methods to make them consistent with the way layers are removed. This makes removal of nonexistent sources and removal of sources of a different type but same identifier as a previously added source a no-ops. As with layers, the check at the top of the method to ensure that the raw pointer is the same as the one in mbgl for the same identifier string should make it impossible to attempt to remove a source of a different type than the one in mbgl for the same identifier. However, for consistency with the layer implementation, the reinterpret_cast has been replaced with a dynamic_cast and check for nullptr.
121 lines
4.7 KiB
Plaintext
121 lines
4.7 KiB
Plaintext
#import "MGLRasterSource_Private.h"
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#import "MGLMapView_Private.h"
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#import "MGLSource_Private.h"
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#import "MGLTileSource_Private.h"
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#import "NSURL+MGLAdditions.h"
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#include <mbgl/map/map.hpp>
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#include <mbgl/style/sources/raster_source.hpp>
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const MGLTileSourceOption MGLTileSourceOptionTileSize = @"MGLTileSourceOptionTileSize";
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static const CGFloat MGLRasterSourceClassicTileSize = 256;
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static const CGFloat MGLRasterSourceRetinaTileSize = 512;
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@interface MGLRasterSource ()
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- (instancetype)initWithRawSource:(mbgl::style::RasterSource *)rawSource NS_DESIGNATED_INITIALIZER;
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@property (nonatomic) mbgl::style::RasterSource *rawSource;
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@end
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@implementation MGLRasterSource {
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std::unique_ptr<mbgl::style::RasterSource> _pendingSource;
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}
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- (instancetype)initWithIdentifier:(NSString *)identifier configurationURL:(NSURL *)configurationURL {
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// The style specification default is 512, but 256 is the expected value for
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// any tile set that would be accessed through a mapbox: URL and therefore
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// any tile URL that this option currently affects.
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BOOL isMapboxURL = ([configurationURL.scheme isEqualToString:@"mapbox"]
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&& [configurationURL.host containsString:@"."]
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&& (!configurationURL.path.length || [configurationURL.path isEqualToString:@"/"]));
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CGFloat tileSize = isMapboxURL ? MGLRasterSourceClassicTileSize : MGLRasterSourceRetinaTileSize;
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return [self initWithIdentifier:identifier configurationURL:configurationURL tileSize:tileSize];
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}
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- (instancetype)initWithIdentifier:(NSString *)identifier configurationURL:(NSURL *)configurationURL tileSize:(CGFloat)tileSize {
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if (self = [super initWithIdentifier:identifier configurationURL:configurationURL]) {
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auto source = std::make_unique<mbgl::style::RasterSource>(identifier.UTF8String,
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configurationURL.mgl_URLByStandardizingScheme.absoluteString.UTF8String,
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uint16_t(round(tileSize)));
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_pendingSource = std::move(source);
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self.rawSource = _pendingSource.get();
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}
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return self;
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}
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- (instancetype)initWithIdentifier:(NSString *)identifier tileURLTemplates:(NS_ARRAY_OF(NSString *) *)tileURLTemplates options:(nullable NS_DICTIONARY_OF(MGLTileSourceOption, id) *)options {
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if (self = [super initWithIdentifier:identifier tileURLTemplates:tileURLTemplates options:options]) {
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mbgl::Tileset tileSet = MGLTileSetFromTileURLTemplates(tileURLTemplates, options);
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uint16_t tileSize = MGLRasterSourceRetinaTileSize;
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if (NSNumber *tileSizeNumber = options[MGLTileSourceOptionTileSize]) {
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if (![tileSizeNumber isKindOfClass:[NSNumber class]]) {
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[NSException raise:NSInvalidArgumentException
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format:@"MGLTileSourceOptionTileSize must be set to an NSNumber."];
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}
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tileSize = static_cast<uint16_t>(round(tileSizeNumber.doubleValue));
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}
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auto source = std::make_unique<mbgl::style::RasterSource>(identifier.UTF8String, tileSet, tileSize);
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_pendingSource = std::move(source);
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self.rawSource = _pendingSource.get();
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}
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return self;
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}
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- (instancetype)initWithRawSource:(mbgl::style::RasterSource *)rawSource {
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return [super initWithRawSource:rawSource];
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}
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- (void)addToMapView:(MGLMapView *)mapView {
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if (_pendingSource == nullptr) {
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[NSException raise:@"MGLRedundantSourceException"
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format:@"This instance %@ was already added to %@. Adding the same source instance " \
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@"to the style more than once is invalid.", self, mapView.style];
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}
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mapView.mbglMap->addSource(std::move(_pendingSource));
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}
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- (void)removeFromMapView:(MGLMapView *)mapView {
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if (self.rawSource != mapView.mbglMap->getSource(self.identifier.UTF8String)) {
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return;
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}
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auto removedSource = mapView.mbglMap->removeSource(self.identifier.UTF8String);
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mbgl::style::RasterSource *source = dynamic_cast<mbgl::style::RasterSource *>(removedSource.get());
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if (!source) {
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return;
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}
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removedSource.release();
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_pendingSource = std::unique_ptr<mbgl::style::RasterSource>(source);
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self.rawSource = _pendingSource.get();
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}
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- (mbgl::style::RasterSource *)rawSource {
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return (mbgl::style::RasterSource *)super.rawSource;
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}
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- (void)setRawSource:(mbgl::style::RasterSource *)rawSource {
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super.rawSource = rawSource;
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}
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- (NSURL *)configurationURL {
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auto url = self.rawSource->getURL();
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return url ? [NSURL URLWithString:@(url->c_str())] : nil;
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}
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- (NSString *)attributionHTMLString {
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auto attribution = self.rawSource->getAttribution();
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return attribution ? @(attribution->c_str()) : nil;
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}
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@end
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