[ios] Implement bindings for `Map::cameraForGeometry`

2 files changed, 25 insertions, 0 deletions

diff --git a/platform/ios/src/MGLMapView.h b/platform/ios/src/MGLMapView.h
index a1347cc09c..843fb3d280 100644
--- a/platform/ios/src/MGLMapView.h
+++ b/platform/ios/src/MGLMapView.h
@@ -890,6 +890,20 @@ MGL_EXPORT IB_DESIGNABLE
 - (MGLMapCamera *)cameraThatFitsCoordinateBounds:(MGLCoordinateBounds)bounds edgePadding:(UIEdgeInsets)insets;
 
 /**
+ Returns the camera that best fits the given shape, with the specified direction,
+ optionally with some additional padding on each side.
+
+ @param shape The shape to fit to the receiver’s viewport.
+ @param direction The direction of the viewport, measured in degrees clockwise from true north.
+ @param insets The minimum padding (in screen points) that would be visible
+    around the returned camera object if it were set as the receiver’s camera.
+ @return A camera object centered on the shape's center with zoom level as high 
+    (close to the ground) as possible while still including the entire shape. The
+    camera object uses the current pitch.
+ */
+- (MGLMapCamera *)cameraThatFitsShape:(MGLShape *)shape direction:(double)direction edgePadding:(UIEdgeInsets)insets;
+
+/**
  Returns the point in this view’s coordinate system on which to "anchor" in
  response to a user-initiated gesture.
 
diff --git a/platform/ios/src/MGLMapView.mm b/platform/ios/src/MGLMapView.mm
index 3288a93ab4..cc6c6bde6d 100644
--- a/platform/ios/src/MGLMapView.mm
+++ b/platform/ios/src/MGLMapView.mm
@@ -35,6 +35,7 @@
 #include <mbgl/util/projection.hpp>
 
 #import "Mapbox.h"
+#import "MGLShape_Private.h"
 #import "MGLFeature_Private.h"
 #import "MGLGeometry_Private.h"
 #import "MGLMultiPoint_Private.h"
@@ -3011,6 +3012,16 @@ public:
     return [self cameraForCameraOptions:cameraOptions];
 }
 
+- (MGLMapCamera *)cameraThatFitsShape:(MGLShape *)shape direction:(double)direction edgePadding:(UIEdgeInsets)insets {
+    mbgl::EdgeInsets padding = MGLEdgeInsetsFromNSEdgeInsets(insets);
+    padding += MGLEdgeInsetsFromNSEdgeInsets(self.contentInset);
+
+    mbgl::CameraOptions cameraOptions = _mbglMap->cameraForGeometry([shape geometryObject], padding, direction);
+
+    return [self cameraForCameraOptions:cameraOptions];
+
+}
+
 - (MGLMapCamera *)cameraForCameraOptions:(const mbgl::CameraOptions &)cameraOptions
 {
     CLLocationCoordinate2D centerCoordinate = MGLLocationCoordinate2DFromLatLng(cameraOptions.center ? *cameraOptions.center : _mbglMap->getLatLng());