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#include <mbgl/style/sources/raster_source.hpp>
#include <mbgl/style/sources/raster_source_impl.hpp>
#include <mbgl/style/source_observer.hpp>
#include <mbgl/style/conversion/json.hpp>
#include <mbgl/style/conversion/tileset.hpp>
#include <mbgl/storage/file_source.hpp>
#include <mbgl/util/mapbox.hpp>
namespace mbgl {
namespace style {
RasterSource::RasterSource(std::string id, variant<std::string, Tileset> urlOrTileset_, uint16_t tileSize, SourceType sourceType)
: Source(makeMutable<Impl>(sourceType, std::move(id), tileSize)),
urlOrTileset(std::move(urlOrTileset_)) {
}
RasterSource::~RasterSource() = default;
const RasterSource::Impl& RasterSource::impl() const {
return static_cast<const Impl&>(*baseImpl);
}
const variant<std::string, Tileset>& RasterSource::getURLOrTileset() const {
return urlOrTileset;
}
optional<std::string> RasterSource::getURL() const {
if (urlOrTileset.is<Tileset>()) {
return {};
}
return urlOrTileset.get<std::string>();
}
uint16_t RasterSource::getTileSize() const {
return impl().getTileSize();
}
void RasterSource::loadDescription(FileSource& fileSource) {
if (urlOrTileset.is<Tileset>()) {
baseImpl = makeMutable<Impl>(impl(), urlOrTileset.get<Tileset>());
loaded = true;
return;
}
if (req) {
return;
}
const std::string& url = urlOrTileset.get<std::string>();
req = fileSource.request(Resource::source(url), [this, url](Response res) {
if (res.error) {
observer->onSourceError(*this, std::make_exception_ptr(std::runtime_error(res.error->message)));
} else if (res.notModified) {
return;
} else if (res.noContent) {
observer->onSourceError(*this, std::make_exception_ptr(std::runtime_error("unexpectedly empty TileJSON")));
} else {
conversion::Error error;
optional<Tileset> tileset = conversion::convertJSON<Tileset>(*res.data.uncompressedData(), error);
if (!tileset) {
observer->onSourceError(*this, std::make_exception_ptr(std::runtime_error(error.message)));
return;
}
util::mapbox::canonicalizeTileset(*tileset, url, getType(), getTileSize());
bool changed = impl().getTileset() != *tileset;
baseImpl = makeMutable<Impl>(impl(), *tileset);
loaded = true;
observer->onSourceLoaded(*this);
if (changed) {
observer->onSourceChanged(*this);
}
}
});
}
} // namespace style
} // namespace mbgl
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