Method

MaplibreNativeFfiMapadd_style_source_json_async

Declaration [src] 

void
maplibre_native_ffi_map_add_style_source_json_async (
  MaplibreNativeFfiMap* self,
  const char* source_id,
  const char* source_json,
  GAsyncReadyCallback callback,
  gpointer user_data
)

Description [src]

Adds a source to the map’s style.

source_json is a [source](https://maplibre.org/maplibre-style-spec/sources/) object.

See mln_map_add_style_source_json in the C API reference.

It fails with these errors:

  • 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_style_source_json_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.
source_json

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.
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.