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
|
#include <mbgl/style/sources/vector_source.hpp>
#include <mbgl/style/sources/vector_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>
#include <mbgl/util/constants.hpp>
#include <mbgl/util/exception.hpp>
namespace mbgl {
namespace style {
VectorSource::VectorSource(std::string id, variant<std::string, Tileset> urlOrTileset_)
: Source(makeMutable<Impl>(std::move(id))),
urlOrTileset(std::move(urlOrTileset_)) {
}
VectorSource::~VectorSource() = default;
const VectorSource::Impl& VectorSource::impl() const {
return static_cast<const Impl&>(*baseImpl);
}
const variant<std::string, Tileset>& VectorSource::getURLOrTileset() const {
return urlOrTileset;
}
optional<std::string> VectorSource::getURL() const {
if (urlOrTileset.is<Tileset>()) {
return {};
}
return urlOrTileset.get<std::string>();
}
void VectorSource::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, error);
if (!tileset) {
observer->onSourceError(*this, std::make_exception_ptr(util::StyleParseException(error.message)));
return;
}
util::mapbox::canonicalizeTileset(*tileset, url, getType(), util::tileSize);
bool changed = impl().getTileset() != *tileset;
baseImpl = makeMutable<Impl>(impl(), *tileset);
loaded = true;
observer->onSourceLoaded(*this);
if (changed) {
observer->onSourceChanged(*this);
}
}
});
}
} // namespace style
} // namespace mbgl
|
