Add Mapbox 0.46 compatibility and features

1 files changed, 21 insertions, 2 deletions

diff --git a/src/Mapbox/Element.elm b/src/Mapbox/Element.elm
index 73b569f..13f5f00 100644
--- a/src/Mapbox/Element.elm
+++ b/src/Mapbox/Element.elm
@@ -1,4 +1,4 @@
-module Mapbox.Element exposing (map, css, MapboxAttr, token, id, maxZoom, minZoom, maxBounds, LngLat, renderWorldCopies, EventData, TouchEvent, eventFeaturesFilter, eventFeaturesLayers, onMouseDown, onMouseUp, onMouseOver, onMouseMove, onClick, onDblClick, onMouseOut, onContextMenu, onZoom, onZoomStart, onZoomEnd, onRotate, onRotateStart, onRotateEnd, onTouchEnd, onTouchMove, onTouchCancel, controlledMap, Viewport)
+module Mapbox.Element exposing (map, css, MapboxAttr, token, id, maxZoom, minZoom, maxBounds, LngLat, renderWorldCopies, featureState, EventData, TouchEvent, eventFeaturesFilter, eventFeaturesLayers, onMouseDown, onMouseUp, onMouseOver, onMouseMove, onClick, onDblClick, onMouseOut, onContextMenu, onZoom, onZoomStart, onZoomEnd, onRotate, onRotateStart, onRotateEnd, onTouchEnd, onTouchMove, onTouchCancel, controlledMap, Viewport)
 
 {-| This library wraps a Custom Element that actually renders a map.
 
@@ -7,7 +7,7 @@ module Mapbox.Element exposing (map, css, MapboxAttr, token, id, maxZoom, minZoo
 
 ### Attributes
 
-@docs token, id, maxZoom, minZoom, maxBounds, LngLat, renderWorldCopies
+@docs token, id, maxZoom, minZoom, maxBounds, LngLat, renderWorldCopies, featureState
 
 
 ### Events
@@ -136,6 +136,25 @@ decodePair decoder =
             )
 
 
+{-| This is a declarative API for controlling states on the features.
+
+The API takes a bunch of GeoJSON features (these can be returned from the event listeners for example). They should at a minimum have these properties defined:
+
+  - `source`
+  - `sourceLayer` (only for vector sources)
+  - `id` the feature's unique id
+
+Then you can give it a `List ( String, Value )` state. You can use this state infromation through the `Mapbox.Expression.featureState` expression.
+
+-}
+featureState : List ( Value, List ( String, Value ) ) -> MapboxAttr msg
+featureState =
+    List.map (\( feature, state ) -> Encode.list [ feature, Encode.object state ])
+        >> Encode.list
+        >> property "featureState"
+        >> MapboxAttr
+
+
 
 -- Events