diff options
Diffstat (limited to 'platform/ios/src/MGLMapView.mm')
| -rw-r--r-- | platform/ios/src/MGLMapView.mm | 496 |
1 files changed, 377 insertions, 119 deletions
diff --git a/platform/ios/src/MGLMapView.mm b/platform/ios/src/MGLMapView.mm index ed51754b0a..c960c60c78 100644 --- a/platform/ios/src/MGLMapView.mm +++ b/platform/ios/src/MGLMapView.mm @@ -43,6 +43,7 @@ #import "MGLFoundation_Private.h" #import "MGLRendererFrontend.h" +#import "MGLVectorSource+MGLAdditions.h" #import "NSBundle+MGLAdditions.h" #import "NSDate+MGLAdditions.h" #import "NSException+MGLAdditions.h" @@ -68,6 +69,7 @@ #import "MGLAnnotationContainerView.h" #import "MGLAnnotationContainerView_Private.h" #import "MGLAttributionInfo_Private.h" +#import "MGLMapAccessibilityElement.h" #include <algorithm> #include <cstdlib> @@ -139,9 +141,6 @@ const CGFloat MGLAnnotationImagePaddingForCallout = 1; const CGSize MGLAnnotationAccessibilityElementMinimumSize = CGSizeMake(10, 10); -/// Unique identifier representing a single annotation in mbgl. -typedef uint32_t MGLAnnotationTag; - /// An indication that the requested annotation was not found or is nonexistent. enum { MGLAnnotationTagNotFound = UINT32_MAX }; @@ -164,38 +163,6 @@ mbgl::util::UnitBezier MGLUnitBezierForMediaTimingFunction(CAMediaTimingFunction return { p1[0], p1[1], p2[0], p2[1] }; } -@interface MGLAnnotationAccessibilityElement : UIAccessibilityElement - -@property (nonatomic) MGLAnnotationTag tag; - -- (instancetype)initWithAccessibilityContainer:(id)container tag:(MGLAnnotationTag)identifier NS_DESIGNATED_INITIALIZER; - -@end - -@implementation MGLAnnotationAccessibilityElement - -- (instancetype)initWithAccessibilityContainer:(id)container tag:(MGLAnnotationTag)tag -{ - if (self = [super initWithAccessibilityContainer:container]) - { - _tag = tag; - self.accessibilityTraits = UIAccessibilityTraitButton | UIAccessibilityTraitAdjustable; - } - return self; -} - -- (void)accessibilityIncrement -{ - [self.accessibilityContainer accessibilityIncrement]; -} - -- (void)accessibilityDecrement -{ - [self.accessibilityContainer accessibilityDecrement]; -} - -@end - /// Lightweight container for metadata about an annotation, including the annotation itself. class MGLAnnotationContext { public: @@ -207,26 +174,6 @@ public: NSString *viewReuseIdentifier; }; -/** An accessibility element representing the MGLMapView at large. */ -@interface MGLMapViewProxyAccessibilityElement : UIAccessibilityElement - -@end - -@implementation MGLMapViewProxyAccessibilityElement - -- (instancetype)initWithAccessibilityContainer:(id)container -{ - if (self = [super initWithAccessibilityContainer:container]) - { - self.accessibilityTraits = UIAccessibilityTraitButton; - self.accessibilityLabel = [self.accessibilityContainer accessibilityLabel]; - self.accessibilityHint = NSLocalizedStringWithDefaultValue(@"CLOSE_CALLOUT_A11Y_HINT", nil, nil, @"Returns to the map", @"Accessibility hint for closing the selected annotation’s callout view and returning to the map"); - } - return self; -} - -@end - #pragma mark - Private - @interface MGLMapView () <UIGestureRecognizerDelegate, @@ -327,6 +274,10 @@ public: BOOL _delegateHasLineWidthsForShapeAnnotations; MGLCompassDirectionFormatter *_accessibilityCompassFormatter; + NS_ARRAY_OF(id <MGLFeature>) *_visiblePlaceFeatures; + NS_ARRAY_OF(id <MGLFeature>) *_visibleRoadFeatures; + NS_MUTABLE_SET_OF(MGLFeatureAccessibilityElement *) *_featureAccessibilityElements; + BOOL _accessibilityValueAnnouncementIsPending; MGLReachability *_reachability; } @@ -2355,8 +2306,61 @@ public: - (NSString *)accessibilityValue { + NSMutableArray *facts = [NSMutableArray array]; + double zoomLevel = round(self.zoomLevel + 1); - return [NSString stringWithFormat:NSLocalizedStringWithDefaultValue(@"MAP_A11Y_VALUE", nil, nil, @"Zoom %dx\n%ld annotation(s) visible", @"Map accessibility value"), (int)zoomLevel, (long)self.accessibilityAnnotationCount]; + [facts addObject:[NSString stringWithFormat:NSLocalizedStringWithDefaultValue(@"MAP_A11Y_VALUE_ZOOM", nil, nil, @"Zoom %dx.", @"Map accessibility value; {zoom level}"), (int)zoomLevel]]; + + NSInteger annotationCount = self.accessibilityAnnotationCount; + if (annotationCount) { + [facts addObject:[NSString stringWithFormat:NSLocalizedStringWithDefaultValue(@"MAP_A11Y_VALUE_ANNOTATIONS", nil, nil, @"%ld annotation(s) visible.", @"Map accessibility value; {number of visible annotations}"), (long)self.accessibilityAnnotationCount]]; + } + + NSArray *placeFeatures = self.visiblePlaceFeatures; + if (placeFeatures.count) { + NSMutableArray *placesArray = [NSMutableArray arrayWithCapacity:placeFeatures.count]; + NSMutableSet *placesSet = [NSMutableSet setWithCapacity:placeFeatures.count]; + for (id <MGLFeature> placeFeature in placeFeatures.reverseObjectEnumerator) { + NSString *name = [placeFeature attributeForKey:@"name"]; + if (![placesSet containsObject:name]) { + [placesArray addObject:name]; + [placesSet addObject:name]; + } + if (placesArray.count >= 3) { + break; + } + } + NSString *placesString = [placesArray componentsJoinedByString:NSLocalizedStringWithDefaultValue(@"LIST_SEPARATOR", nil, nil, @", ", @"List separator")]; + [facts addObject:[NSString stringWithFormat:NSLocalizedStringWithDefaultValue(@"MAP_A11Y_VALUE_PLACES", nil, nil, @"Places visible: %@.", @"Map accessibility value; {list of visible places}"), placesString]]; + } + + NSArray *roadFeatures = self.visibleRoadFeatures; + if (roadFeatures.count) { + [facts addObject:[NSString stringWithFormat:NSLocalizedStringWithDefaultValue(@"MAP_A11Y_VALUE_ROADS", nil, nil, @"%ld road(s) visible.", @"Map accessibility value; {number of visible roads}"), roadFeatures.count]]; + } + + NSString *value = [facts componentsJoinedByString:@" "]; + return value; +} + +- (NS_ARRAY_OF(id <MGLFeature>) *)visiblePlaceFeatures +{ + if (!_visiblePlaceFeatures) + { + NSArray *placeStyleLayerIdentifiers = [self.style.placeStyleLayers valueForKey:@"identifier"]; + _visiblePlaceFeatures = [self visibleFeaturesInRect:self.bounds inStyleLayersWithIdentifiers:[NSSet setWithArray:placeStyleLayerIdentifiers]]; + } + return _visiblePlaceFeatures; +} + +- (NS_ARRAY_OF(id <MGLFeature>) *)visibleRoadFeatures +{ + if (!_visibleRoadFeatures) + { + NSArray *roadStyleLayerIdentifiers = [self.style.roadStyleLayers valueForKey:@"identifier"]; + _visibleRoadFeatures = [self visibleFeaturesInRect:self.bounds inStyleLayersWithIdentifiers:[NSSet setWithArray:roadStyleLayerIdentifiers]]; + } + return _visibleRoadFeatures; } - (CGRect)accessibilityFrame @@ -2390,14 +2394,9 @@ public: { if (self.calloutViewForSelectedAnnotation) { - return 2 /* selectedAnnotationCalloutView, mapViewProxyAccessibilityElement */; + return 2 /* calloutViewForSelectedAnnotation, mapViewProxyAccessibilityElement */; } - NSInteger count = self.accessibilityAnnotationCount + 2 /* compass, attributionButton */; - if (self.userLocationAnnotationView) - { - count++; - } - return count; + return !!self.userLocationAnnotationView + self.accessibilityAnnotationCount + self.visiblePlaceFeatures.count + self.visibleRoadFeatures.count + 2 /* compass, attributionButton */; } - (NSInteger)accessibilityAnnotationCount @@ -2422,67 +2421,123 @@ public: } return nil; } - std::vector<MGLAnnotationTag> visibleAnnotations = [self annotationTagsInRect:self.bounds]; - - // Ornaments - if (index == 0) + + // Compass + NSUInteger compassIndex = 0; + if (index == compassIndex) { return self.compassView; } - if ( ! self.userLocationAnnotationView) - { - index++; - } - else if (index == 1) + + // User location annotation + NSRange userLocationAnnotationRange = NSMakeRange(compassIndex + 1, !!self.userLocationAnnotationView); + if (NSLocationInRange(index, userLocationAnnotationRange)) { return self.userLocationAnnotationView; } - if (index > 0 && (NSUInteger)index == visibleAnnotations.size() + 2 /* compass, userLocationAnnotationView */) - { - return self.attributionButton; - } - - std::sort(visibleAnnotations.begin(), visibleAnnotations.end()); + CGPoint centerPoint = self.contentCenter; if (self.userTrackingMode != MGLUserTrackingModeNone) { centerPoint = self.userLocationAnnotationViewCenter; } - CLLocationCoordinate2D currentCoordinate = [self convertPoint:centerPoint toCoordinateFromView:self]; - std::sort(visibleAnnotations.begin(), visibleAnnotations.end(), [&](const MGLAnnotationTag tagA, const MGLAnnotationTag tagB) { - CLLocationCoordinate2D coordinateA = [[self annotationWithTag:tagA] coordinate]; - CLLocationCoordinate2D coordinateB = [[self annotationWithTag:tagB] coordinate]; - CLLocationDegrees deltaA = hypot(coordinateA.latitude - currentCoordinate.latitude, - coordinateA.longitude - currentCoordinate.longitude); - CLLocationDegrees deltaB = hypot(coordinateB.latitude - currentCoordinate.latitude, - coordinateB.longitude - currentCoordinate.longitude); - return deltaA < deltaB; - }); - - NSUInteger annotationIndex = MGLAnnotationTagNotFound; - if (index >= 0 && (NSUInteger)(index - 2) < visibleAnnotations.size()) + + // Visible annotations + std::vector<MGLAnnotationTag> visibleAnnotations = [self annotationTagsInRect:self.bounds]; + NSRange visibleAnnotationRange = NSMakeRange(NSMaxRange(userLocationAnnotationRange), visibleAnnotations.size()); + if (NSLocationInRange(index, visibleAnnotationRange)) + { + std::sort(visibleAnnotations.begin(), visibleAnnotations.end()); + std::sort(visibleAnnotations.begin(), visibleAnnotations.end(), [&](const MGLAnnotationTag tagA, const MGLAnnotationTag tagB) { + CLLocationCoordinate2D coordinateA = [[self annotationWithTag:tagA] coordinate]; + CLLocationCoordinate2D coordinateB = [[self annotationWithTag:tagB] coordinate]; + CGPoint pointA = [self convertCoordinate:coordinateA toPointToView:self]; + CGPoint pointB = [self convertCoordinate:coordinateB toPointToView:self]; + CGFloat deltaA = hypot(pointA.x - centerPoint.x, pointA.y - centerPoint.y); + CGFloat deltaB = hypot(pointB.x - centerPoint.x, pointB.y - centerPoint.y); + return deltaA < deltaB; + }); + + NSUInteger annotationIndex = index - visibleAnnotationRange.location; + MGLAnnotationTag annotationTag = visibleAnnotations[annotationIndex]; + NSAssert(annotationTag != MGLAnnotationTagNotFound, @"Can’t get accessibility element for nonexistent or invisible annotation at index %li.", (long)index); + return [self accessibilityElementForAnnotationWithTag:annotationTag]; + } + + // Visible place features + NSArray *visiblePlaceFeatures = self.visiblePlaceFeatures; + NSRange visiblePlaceFeatureRange = NSMakeRange(NSMaxRange(visibleAnnotationRange), visiblePlaceFeatures.count); + if (NSLocationInRange(index, visiblePlaceFeatureRange)) + { + visiblePlaceFeatures = [visiblePlaceFeatures sortedArrayUsingComparator:^NSComparisonResult(id <MGLFeature> _Nonnull featureA, id <MGLFeature> _Nonnull featureB) { + CGPoint pointA = [self convertCoordinate:featureA.coordinate toPointToView:self]; + CGPoint pointB = [self convertCoordinate:featureB.coordinate toPointToView:self]; + CGFloat deltaA = hypot(pointA.x - centerPoint.x, pointA.y - centerPoint.y); + CGFloat deltaB = hypot(pointB.x - centerPoint.x, pointB.y - centerPoint.y); + return [@(deltaA) compare:@(deltaB)]; + }]; + + id <MGLFeature> feature = visiblePlaceFeatures[index - visiblePlaceFeatureRange.location]; + return [self accessibilityElementForPlaceFeature:feature]; + } + + // Visible road features + NSArray *visibleRoadFeatures = self.visibleRoadFeatures; + NSRange visibleRoadFeatureRange = NSMakeRange(NSMaxRange(visiblePlaceFeatureRange), visibleRoadFeatures.count); + if (NSLocationInRange(index, visibleRoadFeatureRange)) + { + visibleRoadFeatures = [visibleRoadFeatures sortedArrayUsingComparator:^NSComparisonResult(id <MGLFeature> _Nonnull featureA, id <MGLFeature> _Nonnull featureB) { + CGPoint pointA = [self convertCoordinate:featureA.coordinate toPointToView:self]; + CGPoint pointB = [self convertCoordinate:featureB.coordinate toPointToView:self]; + CGFloat deltaA = hypot(pointA.x - centerPoint.x, pointA.y - centerPoint.y); + CGFloat deltaB = hypot(pointB.x - centerPoint.x, pointB.y - centerPoint.y); + return [@(deltaA) compare:@(deltaB)]; + }]; + + id <MGLFeature> feature = visibleRoadFeatures[index - visibleRoadFeatureRange.location]; + return [self accessibilityElementForRoadFeature:feature]; + } + + // Attribution button + NSUInteger attributionButtonIndex = NSMaxRange(visibleRoadFeatureRange); + if (index == attributionButtonIndex) { - annotationIndex = index - 2 /* compass, userLocationAnnotationView */; + return self.attributionButton; } - MGLAnnotationTag annotationTag = visibleAnnotations[annotationIndex]; - NSAssert(annotationTag != MGLAnnotationTagNotFound, @"Can’t get accessibility element for nonexistent or invisible annotation at index %li.", (long)index); + + NSAssert(NO, @"Index %ld not in recognized accessibility element ranges. " + @"User location annotation range: %@; visible annotation range: %@; " + @"visible place feature range: %@; visible road feature range: %@.", + (long)index, NSStringFromRange(userLocationAnnotationRange), + NSStringFromRange(visibleAnnotationRange), NSStringFromRange(visiblePlaceFeatureRange), + NSStringFromRange(visibleRoadFeatureRange)); + return nil; +} + +/** + Returns an accessibility element corresponding to a visible annotation with the given tag. + + @param annotationTag Tag of the annotation represented by the accessibility element to return. + */ +- (id)accessibilityElementForAnnotationWithTag:(MGLAnnotationTag)annotationTag +{ NSAssert(_annotationContextsByAnnotationTag.count(annotationTag), @"Missing annotation for tag %u.", annotationTag); MGLAnnotationContext &annotationContext = _annotationContextsByAnnotationTag.at(annotationTag); id <MGLAnnotation> annotation = annotationContext.annotation; - + // Let the annotation view serve as its own accessibility element. MGLAnnotationView *annotationView = annotationContext.annotationView; if (annotationView && annotationView.superview) { return annotationView; } - + // Lazily create an accessibility element for the found annotation. if ( ! annotationContext.accessibilityElement) { annotationContext.accessibilityElement = [[MGLAnnotationAccessibilityElement alloc] initWithAccessibilityContainer:self tag:annotationTag]; } - + // Update the accessibility element. MGLAnnotationImage *annotationImage = [self imageOfAnnotationWithTag:annotationTag]; CGRect annotationFrame = [self frameOfImage:annotationImage.image centeredAtCoordinate:annotation.coordinate]; @@ -2493,8 +2548,7 @@ public: annotationFrame = CGRectUnion(annotationFrame, minimumFrame); CGRect screenRect = UIAccessibilityConvertFrameToScreenCoordinates(annotationFrame, self); annotationContext.accessibilityElement.accessibilityFrame = screenRect; - annotationContext.accessibilityElement.accessibilityHint = NSLocalizedStringWithDefaultValue(@"ANNOTATION_A11Y_HINT", nil, nil, @"Shows more info", @"Accessibility hint"); - + if ([annotation respondsToSelector:@selector(title)]) { annotationContext.accessibilityElement.accessibilityLabel = annotation.title; @@ -2503,10 +2557,114 @@ public: { annotationContext.accessibilityElement.accessibilityValue = annotation.subtitle; } - + return annotationContext.accessibilityElement; } +/** + Returns an accessibility element corresponding to the given place feature. + + @param feature The place feature represented by the accessibility element. + */ +- (id)accessibilityElementForPlaceFeature:(id <MGLFeature>)feature +{ + if (!_featureAccessibilityElements) + { + _featureAccessibilityElements = [NSMutableSet set]; + } + + MGLFeatureAccessibilityElement *element = [_featureAccessibilityElements objectsPassingTest:^BOOL(MGLFeatureAccessibilityElement * _Nonnull element, BOOL * _Nonnull stop) { + return element.feature.identifier && ![element.feature.identifier isEqual:@0] && [element.feature.identifier isEqual:feature.identifier]; + }].anyObject; + if (!element) + { + element = [[MGLPlaceFeatureAccessibilityElement alloc] initWithAccessibilityContainer:self feature:feature]; + } + CGPoint center = [self convertCoordinate:feature.coordinate toPointToView:self]; + CGRect annotationFrame = CGRectInset({center, CGSizeZero}, -MGLAnnotationAccessibilityElementMinimumSize.width / 2, -MGLAnnotationAccessibilityElementMinimumSize.width / 2); + CGRect screenRect = UIAccessibilityConvertFrameToScreenCoordinates(annotationFrame, self); + element.accessibilityFrame = screenRect; + + [_featureAccessibilityElements addObject:element]; + + return element; +} + +/** + Returns an accessibility element corresponding to the given road feature. + + @param feature The road feature represented by the accessibility element. + */ +- (id)accessibilityElementForRoadFeature:(id <MGLFeature>)feature +{ + if (!_featureAccessibilityElements) + { + _featureAccessibilityElements = [NSMutableSet set]; + } + + MGLFeatureAccessibilityElement *element = [_featureAccessibilityElements objectsPassingTest:^BOOL(MGLFeatureAccessibilityElement * _Nonnull element, BOOL * _Nonnull stop) { + return element.feature.identifier && ![element.feature.identifier isEqual:@0] && [element.feature.identifier isEqual:feature.identifier]; + }].anyObject; + if (!element) + { + element = [[MGLRoadFeatureAccessibilityElement alloc] initWithAccessibilityContainer:self feature:feature]; + } + + UIBezierPath *path; + if ([feature isKindOfClass:[MGLPointFeature class]]) + { + CGPoint center = [self convertCoordinate:feature.coordinate toPointToView:self]; + CGRect annotationFrame = CGRectInset({center, CGSizeZero}, -MGLAnnotationAccessibilityElementMinimumSize.width / 2, -MGLAnnotationAccessibilityElementMinimumSize.width / 2); + CGRect screenRect = UIAccessibilityConvertFrameToScreenCoordinates(annotationFrame, self); + element.accessibilityFrame = screenRect; + } + else if ([feature isKindOfClass:[MGLPolylineFeature class]]) + { + path = [self pathOfPolyline:(MGLPolyline *)feature]; + } + else if ([feature isKindOfClass:[MGLMultiPolylineFeature class]]) + { + path = [UIBezierPath bezierPath]; + for (MGLPolyline *polyline in [(MGLMultiPolylineFeature *)feature polylines]) + { + [path appendPath:[self pathOfPolyline:polyline]]; + } + } + + if (path) + { + CGPathRef strokedCGPath = CGPathCreateCopyByStrokingPath(path.CGPath, NULL, MGLAnnotationAccessibilityElementMinimumSize.width, kCGLineCapButt, kCGLineJoinMiter, 0); + UIBezierPath *strokedPath = [UIBezierPath bezierPathWithCGPath:strokedCGPath]; + CGPathRelease(strokedCGPath); + UIBezierPath *screenPath = UIAccessibilityConvertPathToScreenCoordinates(strokedPath, self); + element.accessibilityPath = screenPath; + } + + [_featureAccessibilityElements addObject:element]; + + return element; +} + +- (UIBezierPath *)pathOfPolyline:(MGLPolyline *)polyline +{ + CLLocationCoordinate2D *coordinates = polyline.coordinates; + NSUInteger pointCount = polyline.pointCount; + UIBezierPath *path = [UIBezierPath bezierPath]; + for (NSUInteger i = 0; i < pointCount; i++) + { + CGPoint point = [self convertCoordinate:coordinates[i] toPointToView:self]; + if (i) + { + [path addLineToPoint:point]; + } + else + { + [path moveToPoint:point]; + } + } + return path; +} + - (NSInteger)indexOfAccessibilityElement:(id)element { if (self.calloutViewForSelectedAnnotation) @@ -2514,17 +2672,30 @@ public: return [@[self.calloutViewForSelectedAnnotation, self.mapViewProxyAccessibilityElement] indexOfObject:element]; } + + // Compass + NSUInteger compassIndex = 0; if (element == self.compassView) { - return 0; + return compassIndex; } + + // User location annotation + NSRange userLocationAnnotationRange = NSMakeRange(compassIndex + 1, !!self.userLocationAnnotationView); if (element == self.userLocationAnnotationView) { - return 1; + return userLocationAnnotationRange.location; } - + + CGPoint centerPoint = self.contentCenter; + if (self.userTrackingMode != MGLUserTrackingModeNone) + { + centerPoint = self.userLocationAnnotationViewCenter; + } + + // Visible annotations std::vector<MGLAnnotationTag> visibleAnnotations = [self annotationTagsInRect:self.bounds]; - + NSRange visibleAnnotationRange = NSMakeRange(NSMaxRange(userLocationAnnotationRange), visibleAnnotations.size()); MGLAnnotationTag tag = MGLAnnotationTagNotFound; if ([element isKindOfClass:[MGLAnnotationView class]]) { @@ -2535,22 +2706,92 @@ public: { tag = [(MGLAnnotationAccessibilityElement *)element tag]; } - else if (element == self.attributionButton) - { - return !!self.userLocationAnnotationView + visibleAnnotations.size(); + + if (tag != MGLAnnotationTagNotFound) + { + std::sort(visibleAnnotations.begin(), visibleAnnotations.end()); + std::sort(visibleAnnotations.begin(), visibleAnnotations.end(), [&](const MGLAnnotationTag tagA, const MGLAnnotationTag tagB) { + CLLocationCoordinate2D coordinateA = [[self annotationWithTag:tagA] coordinate]; + CLLocationCoordinate2D coordinateB = [[self annotationWithTag:tagB] coordinate]; + CGPoint pointA = [self convertCoordinate:coordinateA toPointToView:self]; + CGPoint pointB = [self convertCoordinate:coordinateB toPointToView:self]; + CGFloat deltaA = hypot(pointA.x - centerPoint.x, pointA.y - centerPoint.y); + CGFloat deltaB = hypot(pointB.x - centerPoint.x, pointB.y - centerPoint.y); + return deltaA < deltaB; + }); + + auto foundElement = std::find(visibleAnnotations.begin(), visibleAnnotations.end(), tag); + if (foundElement == visibleAnnotations.end()) + { + return NSNotFound; + } + return visibleAnnotationRange.location + std::distance(visibleAnnotations.begin(), foundElement); } - else - { - return NSNotFound; + + // Visible place features + NSArray *visiblePlaceFeatures = self.visiblePlaceFeatures; + NSRange visiblePlaceFeatureRange = NSMakeRange(NSMaxRange(visibleAnnotationRange), visiblePlaceFeatures.count); + if ([element isKindOfClass:[MGLPlaceFeatureAccessibilityElement class]]) + { + visiblePlaceFeatures = [visiblePlaceFeatures sortedArrayUsingComparator:^NSComparisonResult(id <MGLFeature> _Nonnull featureA, id <MGLFeature> _Nonnull featureB) { + CGPoint pointA = [self convertCoordinate:featureA.coordinate toPointToView:self]; + CGPoint pointB = [self convertCoordinate:featureB.coordinate toPointToView:self]; + CGFloat deltaA = hypot(pointA.x - centerPoint.x, pointA.y - centerPoint.y); + CGFloat deltaB = hypot(pointB.x - centerPoint.x, pointB.y - centerPoint.y); + return [@(deltaA) compare:@(deltaB)]; + }]; + + id <MGLFeature> feature = [(MGLPlaceFeatureAccessibilityElement *)element feature]; + NSUInteger featureIndex = [visiblePlaceFeatures indexOfObject:feature]; + if (featureIndex == NSNotFound) + { + featureIndex = [visiblePlaceFeatures indexOfObjectPassingTest:^BOOL (id <MGLFeature> _Nonnull visibleFeature, NSUInteger idx, BOOL * _Nonnull stop) { + return visibleFeature.identifier && ![visibleFeature.identifier isEqual:@0] && [visibleFeature.identifier isEqual:feature.identifier]; + }]; + } + if (featureIndex == NSNotFound) + { + return NSNotFound; + } + return visiblePlaceFeatureRange.location + featureIndex; } - - std::sort(visibleAnnotations.begin(), visibleAnnotations.end()); - auto foundElement = std::find(visibleAnnotations.begin(), visibleAnnotations.end(), tag); - if (foundElement == visibleAnnotations.end()) + + // Visible road features + NSArray *visibleRoadFeatures = self.visibleRoadFeatures; + NSRange visibleRoadFeatureRange = NSMakeRange(NSMaxRange(visiblePlaceFeatureRange), visibleRoadFeatures.count); + if ([element isKindOfClass:[MGLRoadFeatureAccessibilityElement class]]) + { + visibleRoadFeatures = [visibleRoadFeatures sortedArrayUsingComparator:^NSComparisonResult(id <MGLFeature> _Nonnull featureA, id <MGLFeature> _Nonnull featureB) { + CGPoint pointA = [self convertCoordinate:featureA.coordinate toPointToView:self]; + CGPoint pointB = [self convertCoordinate:featureB.coordinate toPointToView:self]; + CGFloat deltaA = hypot(pointA.x - centerPoint.x, pointA.y - centerPoint.y); + CGFloat deltaB = hypot(pointB.x - centerPoint.x, pointB.y - centerPoint.y); + return [@(deltaA) compare:@(deltaB)]; + }]; + + id <MGLFeature> feature = [(MGLRoadFeatureAccessibilityElement *)element feature]; + NSUInteger featureIndex = [visibleRoadFeatures indexOfObject:feature]; + if (featureIndex == NSNotFound) + { + featureIndex = [visibleRoadFeatures indexOfObjectPassingTest:^BOOL (id <MGLFeature> _Nonnull visibleFeature, NSUInteger idx, BOOL * _Nonnull stop) { + return visibleFeature.identifier && ![visibleFeature.identifier isEqual:@0] && [visibleFeature.identifier isEqual:feature.identifier]; + }]; + } + if (featureIndex == NSNotFound) + { + return NSNotFound; + } + return visibleRoadFeatureRange.location + featureIndex; + } + + // Attribution button + NSUInteger attributionButtonIndex = NSMaxRange(visibleRoadFeatureRange); + if (element == self.attributionButton) { - return NSNotFound; + return attributionButtonIndex; } - return !!self.userLocationAnnotationView + std::distance(visibleAnnotations.begin(), foundElement) + 1 /* compass */; + + return NSNotFound; } - (MGLMapViewProxyAccessibilityElement *)mapViewProxyAccessibilityElement @@ -2581,10 +2822,11 @@ public: { centerPoint = self.userLocationAnnotationViewCenter; } - _mbglMap->setZoom(_mbglMap->getZoom() + log2(scaleFactor), mbgl::ScreenCoordinate { centerPoint.x, centerPoint.y }); + double newZoom = round(self.zoomLevel) + log2(scaleFactor); + _mbglMap->setZoom(newZoom, mbgl::ScreenCoordinate { centerPoint.x, centerPoint.y }); [self unrotateIfNeededForGesture]; - UIAccessibilityPostNotification(UIAccessibilityAnnouncementNotification, self.accessibilityValue); + _accessibilityValueAnnouncementIsPending = YES; } #pragma mark - Geography - @@ -5144,12 +5386,26 @@ public: { if ([UIApplication sharedApplication].applicationState == UIApplicationStateActive) { - UIAccessibilityPostNotification(UIAccessibilityLayoutChangedNotification, nil); + _featureAccessibilityElements = nil; + _visiblePlaceFeatures = nil; + _visibleRoadFeatures = nil; + if (_accessibilityValueAnnouncementIsPending) { + _accessibilityValueAnnouncementIsPending = NO; + [self performSelector:@selector(announceAccessibilityValue) withObject:nil afterDelay:0.1]; + } else { + UIAccessibilityPostNotification(UIAccessibilityLayoutChangedNotification, nil); + } } [self.delegate mapView:self regionDidChangeAnimated:animated]; } } +- (void)announceAccessibilityValue +{ + UIAccessibilityPostNotification(UIAccessibilityAnnouncementNotification, self.accessibilityValue); + UIAccessibilityPostNotification(UIAccessibilityLayoutChangedNotification, nil); +} + - (void)mapViewWillStartLoadingMap { if (!_mbglMap) { return; @@ -5231,6 +5487,8 @@ public: if (!_mbglMap) { return; } + + UIAccessibilityPostNotification(UIAccessibilityLayoutChangedNotification, nil); if ([self.delegate respondsToSelector:@selector(mapViewDidFinishRenderingMap:fullyRendered:)]) { |