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#import "MGLSource_Private.h"
#import "MGLStyle_Private.h"
#import "MGLMapView_Private.h"
#import "NSBundle+MGLAdditions.h"
#include <mbgl/style/style.hpp>
#include <mbgl/map/map.hpp>
#include <mbgl/style/source.hpp>
@interface MGLSource ()
// Even though this class is abstract, MGLStyle uses it to represent some
// special internal source types like mbgl::AnnotationSource.
@property (nonatomic, readonly) mbgl::style::Source *rawSource;
@property (nonatomic, readonly, weak) MGLMapView *mapView;
@end
@implementation MGLSource {
std::unique_ptr<mbgl::style::Source> _pendingSource;
}
- (instancetype)initWithIdentifier:(NSString *)identifier
{
if (self = [super init]) {
_identifier = identifier;
}
return self;
}
- (instancetype)initWithRawSource:(mbgl::style::Source *)rawSource mapView:(MGLMapView *)mapView {
NSString *identifier = @(rawSource->getID().c_str());
if (self = [self initWithIdentifier:identifier]) {
_rawSource = rawSource;
_rawSource->peer = SourceWrapper { self };
_mapView = mapView;
}
return self;
}
- (instancetype)initWithPendingSource:(std::unique_ptr<mbgl::style::Source>)pendingSource {
if (self = [self initWithRawSource:pendingSource.get() mapView:nil]) {
_pendingSource = std::move(pendingSource);
}
return self;
}
- (void)addToMapView:(MGLMapView *)mapView {
if (_pendingSource == nullptr) {
[NSException raise:MGLRedundantSourceException
format:@"This instance %@ was already added to %@. Adding the same source instance " \
"to the style more than once is invalid.", self, mapView.style];
}
_mapView = mapView;
_mapView.style.rawStyle->addSource(std::move(_pendingSource));
}
- (BOOL)removeFromMapView:(MGLMapView *)mapView error:(NSError * __nullable * __nullable)outError {
BOOL removed = NO;
if (self.rawSource == mapView.style.rawStyle->getSource(self.identifier.UTF8String)) {
auto removedSource = mapView.style.rawStyle->removeSource(self.identifier.UTF8String);
if (removedSource) {
removed = YES;
_pendingSource = std::move(removedSource);
_mapView = nil;
} else if (outError) {
NSString *format = NSLocalizedStringWithDefaultValue(@"REMOVE_SRC_FAIL_IN_USE_FMT", nil, nil, @"Source '%@' is in use, cannot remove.", @"User-friendly error description");
NSString *localizedDescription = [NSString stringWithFormat:format, self.identifier];
*outError = [NSError errorWithDomain:MGLErrorDomain
code:MGLErrorCodeSourceIsInUseCannotRemove
userInfo:@{ NSLocalizedDescriptionKey : localizedDescription }];
}
}
else if (outError) {
// Consider raising an exception here
NSString *format = NSLocalizedStringWithDefaultValue(@"REMOVE_SRC_FAIL_MISMATCH_FMT", nil, nil, @"Identifier '%@' does not match source identifier '%s'", @"User-friendly error description");
NSString *localizedDescription = [NSString stringWithFormat:format,
self.identifier,
self.rawSource ? self.rawSource->getID().c_str() : "(null)"];
*outError = [NSError errorWithDomain:MGLErrorDomain
code:MGLErrorCodeSourceIdentifierMismatch
userInfo:@{ NSLocalizedDescriptionKey : localizedDescription }];
}
return removed;
}
- (NSString *)description {
return [NSString stringWithFormat:@"<%@: %p; identifier = %@>",
NSStringFromClass([self class]), (void *)self, self.identifier];
}
@end
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