1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
|
#include <mbgl/style/sources/geojson_source.hpp>
#include <mbgl/style/sources/geojson_source_impl.hpp>
#include <mbgl/style/source_observer.hpp>
#include <mbgl/style/conversion/json.hpp>
#include <mbgl/style/conversion/geojson.hpp>
#include <mbgl/storage/file_source.hpp>
#include <mbgl/util/logging.hpp>
namespace mbgl {
namespace style {
GeoJSONSource::GeoJSONSource(const std::string& id, const GeoJSONOptions& options)
: Source(makeMutable<Impl>(std::move(id), options)),
stateChanges(makeMutable<std::vector<FeatureStateChange>>()) {
}
GeoJSONSource::~GeoJSONSource() = default;
const GeoJSONSource::Impl& GeoJSONSource::impl() const {
return static_cast<const Impl&>(*baseImpl);
}
void GeoJSONSource::setURL(const std::string& url_) {
url = std::move(url_);
// Signal that the source description needs a reload
if (loaded || req) {
loaded = false;
req.reset();
observer->onSourceDescriptionChanged(*this);
}
}
void GeoJSONSource::setGeoJSON(const mapbox::geojson::geojson& geoJSON) {
req.reset();
baseImpl = makeMutable<Impl>(impl(), geoJSON);
observer->onSourceChanged(*this);
}
void GeoJSONSource::setFeatureState(const FeatureIdentifier& featureId, const std::string& key, const mbgl::Value& value) {
if ( featureId.valid() && !key.empty()) {
stateChanges->emplace_back(FeatureStateChange::ChangeType::Insert, featureId, key, value);
// observer->onSourceChanged(*this);
}
}
Immutable<std::vector<FeatureStateChange>> GeoJSONSource::collectFeatureStates() {
Immutable<std::vector<FeatureStateChange>> immutable(std::move(stateChanges));
stateChanges = makeMutable<std::vector<FeatureStateChange>>();
printf("!)!)! Collecting feature state!@$!@$\n");
return immutable;
}
optional<std::string> GeoJSONSource::getURL() const {
return url;
}
void GeoJSONSource::loadDescription(FileSource& fileSource) {
if (!url) {
loaded = true;
return;
}
if (req) {
return;
}
req = fileSource.request(Resource::source(*url), [this](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 GeoJSON")));
} else {
conversion::Error error;
optional<GeoJSON> geoJSON = conversion::convertJSON<GeoJSON>(*res.data, error);
if (!geoJSON) {
Log::Error(Event::ParseStyle, "Failed to parse GeoJSON data: %s",
error.message.c_str());
// Create an empty GeoJSON VT object to make sure we're not infinitely waiting for
// tiles to load.
baseImpl = makeMutable<Impl>(impl(), GeoJSON{ FeatureCollection{} });
} else {
baseImpl = makeMutable<Impl>(impl(), *geoJSON);
}
loaded = true;
observer->onSourceLoaded(*this);
}
});
}
} // namespace style
} // namespace mbgl
|
