Method

MaplibreNativeFfiMapadd_geo_json_source_async

Declaration [src] 

void
maplibre_native_ffi_map_add_geo_json_source_async (
  MaplibreNativeFfiMap* self,
  const char* source_id,
  MaplibreNativeFfiGeoJsonSourceOptions* options,
  const char* attribution,
  GAsyncReadyCallback callback,
  gpointer user_data
)

Description [src]

Adds a GeoJSON source with no data.

Give it data with maplibre_native_ffi_map_set_geo_json_source_data_async() or maplibre_native_ffi_map_set_geo_json_source_url_async(). Its options stay fixed for as long as the style holds it.

attribution is the source’s [attribution](https://maplibre.org/maplibre-style-spec/sources/#attribution), or empty for none.

See mln_map_add_geo_json_source in the C API reference.

It fails with these errors:

  • MAPLIBRE_NATIVE_FFI_ERROR_INVALID_ARGUMENT when an option in options is out of range.
  • MAPLIBRE_NATIVE_FFI_ERROR_ALREADY_EXISTS when the style already has a source named source_id.
  • MAPLIBRE_NATIVE_FFI_ERROR_INVALID_STATE while the style isn’t loaded, as maplibre_native_ffi_map_set_style_url_async() describes.

Without callback, nothing reports whether the call succeeds.

This method completes asynchronously. Use maplibre_native_ffi_map_add_geo_json_source_finish() inside the GAsyncReadyCallback to obtain the result of the operation.

Parameters

source_id

Type: const char*

The UTF-8 text.

The data is owned by the caller of the method.
The value is a NUL terminated UTF-8 string.
options

Type: MaplibreNativeFfiGeoJsonSourceOptions

The value, or NULL.

The argument can be NULL.
The data is owned by the caller of the method.
attribution

Type: const char*

The UTF-8 text.

The argument can be NULL.
The data is owned by the caller of the method.
The value is a NUL terminated UTF-8 string.
callback

Type: GAsyncReadyCallback

The callback to call when the call finishes.

The argument can be NULL.
user_data

Type: gpointer

The data to pass to callback.

The argument can be NULL.
The data is owned by the caller of the method.