Import new maps on web #1014
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Import new maps on web #1014
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... slightly stuck at the clipboard step
IT WORKS. getting overpass xml data back now!
... hitting the wasm env but though. I recognize you!
and try to load the received map we seem stuck after preparing the CH?
raw bincoded bytes if we can
fine... what is going on?!
byte len matches, but then serde deserialize breaks. Invalid size 7310312400223103264: sizes must fit in a usize (0 to 4294967295)
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Importing new areas works only on the native version today. For #1009 and other reasons, it could be nice to do this on the web too, even though it'd be slow and someone would have to re-import the map every single session, even when switching apps.
The complication is that we can't just include the extra dependencies in all of the app executables; it would increase initial loading time, even for the common case of only using pre-imported maps. On native, we split out a
clibinary and call it as a subprocess. The approach in this PR is the same -- we can dynamically load a JS+WASM module and bring in the extra dependencies.This PR is a draft because it's still not working. The two big problems:
When I try to turn a
Mapinto bincoded bytes to pass back to JS, it freezes and I can't figure out why. For some reason, serializing aRawMapworks fine, so we could do theRawMap->Mapstep back inmap_guiwithout needing extra dependencies. But bizarrely, deserializing breaks. The number of bytes passed back is the same, but the actual bytes themselves seem to change. Is it somehow an endianness or 32/64-bit issue, even though both ends are using wasm32?Reading the clipboard contents for the GeoJSON boundary isn't obvious. The WASM support for it requires some experimental flag, and it's async. I found https://docs.rs/quad-wasmnastics/latest/quad_wasmnastics/ as possible reference.
Many other cleanups still needed, but first I just want to get this working