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implement cluster query features on GeoJsonSource #18

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implement cluster query features on GeoJsonSource #18

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9 changes: 9 additions & 0 deletions lib/src/interop/style/sources/geojson_source_interop.dart
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Original file line number Diff line number Diff line change
Expand Up @@ -17,4 +17,13 @@ class GeoJsonSourceJsImpl {

external GeoJsonSourceJsImpl setData(
FeatureCollectionJsImpl featureCollection);

external GeoJsonSourceJsImpl getClusterChildren(
int clusterId, Function(dynamic, [List<dynamic>?]) callback);

external GeoJsonSourceJsImpl getClusterLeaves(int clusterId, int limit,
int offset, Function(dynamic, [List<dynamic>?]) callback);

external GeoJsonSourceJsImpl getClusterExpansionZoom(
int clusterId, Function(dynamic, [int?]) callback);
}
40 changes: 40 additions & 0 deletions lib/src/style/sources/geojson_source.dart
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Original file line number Diff line number Diff line change
@@ -1,5 +1,6 @@
library mapboxgl.style.sources.geojson_source;

import 'package:js/js.dart';
import 'package:mapbox_gl_dart/mapbox_gl_dart.dart';
import 'package:mapbox_gl_dart/src/interop/interop.dart';

Expand All @@ -20,6 +21,45 @@ class GeoJsonSource extends Source<GeoJsonSourceJsImpl> {
GeoJsonSource setData(FeatureCollection featureCollection) =>
GeoJsonSource.fromJsObject(jsObject.setData(featureCollection.jsObject));

GeoJsonSource getClusterChildren(
int clusterId, Function(dynamic, List<Feature>?) callback) =>
GeoJsonSource.fromJsObject(
jsObject.getClusterChildren(
clusterId,
allowInterop((error, [children]) {
callback(
error,
children?.map((child) => Feature.fromJsObject(child)).toList(),
);
}),
),
);

GeoJsonSource getClusterLeaves(int clusterId, int limit, int offset,
Function(dynamic, List<Feature>?) callback) =>
GeoJsonSource.fromJsObject(
jsObject.getClusterLeaves(
clusterId,
limit,
offset,
allowInterop((error, [leaves]) {
callback(
error,
leaves?.map((leaf) => Feature.fromJsObject(leaf)).toList(),
);
}),
),
);

GeoJsonSource getClusterExpansionZoom(
int clusterId, Function(dynamic, int?) callback) =>
GeoJsonSource.fromJsObject(
jsObject.getClusterExpansionZoom(
clusterId,
allowInterop((error, [level]) => callback(error, level)),
),
);

/// Creates a new GeoJsonSource from a [jsObject].
GeoJsonSource.fromJsObject(GeoJsonSourceJsImpl jsObject)
: super.fromJsObject(jsObject);
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