c7be3d52a7
* [core] add sources to source collection before triggering load * [test] add testcase for #15514 * [core] also call onSourceLoaded observers when no network request was necessary
82 lines
2.5 KiB
C++
82 lines
2.5 KiB
C++
#include <mbgl/style/sources/vector_source.hpp>
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#include <mbgl/style/sources/vector_source_impl.hpp>
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#include <mbgl/style/source_observer.hpp>
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#include <mbgl/style/conversion/json.hpp>
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#include <mbgl/style/conversion/tileset.hpp>
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#include <mbgl/storage/file_source.hpp>
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#include <mbgl/util/mapbox.hpp>
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#include <mbgl/util/constants.hpp>
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#include <mbgl/util/exception.hpp>
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namespace mbgl {
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namespace style {
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VectorSource::VectorSource(std::string id, variant<std::string, Tileset> urlOrTileset_)
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: Source(makeMutable<Impl>(std::move(id))),
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urlOrTileset(std::move(urlOrTileset_)) {
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}
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VectorSource::~VectorSource() = default;
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const VectorSource::Impl& VectorSource::impl() const {
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return static_cast<const Impl&>(*baseImpl);
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}
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const variant<std::string, Tileset>& VectorSource::getURLOrTileset() const {
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return urlOrTileset;
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}
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optional<std::string> VectorSource::getURL() const {
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if (urlOrTileset.is<Tileset>()) {
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return {};
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}
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return urlOrTileset.get<std::string>();
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}
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void VectorSource::loadDescription(FileSource& fileSource) {
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if (urlOrTileset.is<Tileset>()) {
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baseImpl = makeMutable<Impl>(impl(), urlOrTileset.get<Tileset>());
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loaded = true;
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observer->onSourceLoaded(*this);
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return;
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}
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if (req) {
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return;
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}
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const auto& url = urlOrTileset.get<std::string>();
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req = fileSource.request(Resource::source(url), [this, url](Response res) {
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if (res.error) {
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observer->onSourceError(*this, std::make_exception_ptr(std::runtime_error(res.error->message)));
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} else if (res.notModified) {
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return;
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} else if (res.noContent) {
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observer->onSourceError(*this, std::make_exception_ptr(std::runtime_error("unexpectedly empty TileJSON")));
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} else {
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conversion::Error error;
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optional<Tileset> tileset = conversion::convertJSON<Tileset>(*res.data, error);
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if (!tileset) {
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observer->onSourceError(*this, std::make_exception_ptr(util::StyleParseException(error.message)));
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return;
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}
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util::mapbox::canonicalizeTileset(*tileset, url, getType(), util::tileSize);
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bool changed = impl().tileset != *tileset;
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baseImpl = makeMutable<Impl>(impl(), *tileset);
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loaded = true;
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observer->onSourceLoaded(*this);
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if (changed) {
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observer->onSourceChanged(*this);
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}
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}
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});
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}
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} // namespace style
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} // namespace mbgl
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