An "Integration" is a webxdc file that speaks to the deltachat-core-library instead of other webxdc instances. From the view of the messenger implementor, the integrations behave like a normal webxdc.
To use this integration in a client,
get a core with 1.137.4 or newer,
build maps.xdc as described below,
add it to the client using
dc_set_webxdc_integration()/dc_init_webxdc_integration()
and open it as a usual webxdc.
The map is shown using Leaflet and looks like the following:
The protocol used to speak to core is described atop of
maps_integration.rs.
Compared to eg. Mapbox on Android, this solution is 8mb smaller and has 2000+ lines less boilerplate code.
In general, however, the integration could use other maps as well, it is not bound to Leaflet.
to create maps.xdc file, execute:
./create-xdc.shNote, that maps.xdc is meant to be used as an integration as described below
and will work only limited when send to a chat.