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#include "custom_geometry_source.hpp"
#include <mbgl/renderer/query.hpp>
// Java -> C++ conversion
#include "../android_conversion.hpp"
#include "../conversion/filter.hpp"
// C++ -> Java conversion
#include "../../conversion/conversion.hpp"
#include "../../conversion/collection.hpp"
#include "../../geojson/conversion/feature.hpp"
#include <mbgl/style/conversion/custom_geometry_source_options.hpp>
#include <string>
namespace mbgl {
namespace android {
// This conversion is expected not to fail because it's used only in contexts where
// the value was originally a CustomGeometrySourceOptions object on the Java side. If it fails
// to convert, it's a bug in our serialization or Java-side static typing.
static style::CustomGeometrySource::Options convertCustomGeometrySourceOptions(jni::JNIEnv& env,
jni::Object<> options,
style::TileFunction fetchFn,
style::TileFunction cancelFn) {
using namespace mbgl::style::conversion;
if (!options) {
return style::CustomGeometrySource::Options();
}
Error error;
optional<style::CustomGeometrySource::Options> result = convert<style::CustomGeometrySource::Options>(Value(env, options), error);
if (!result) {
throw std::logic_error(error.message);
}
result->fetchTileFunction = fetchFn;
result->cancelTileFunction = cancelFn;
return *result;
}
CustomGeometrySource::CustomGeometrySource(jni::JNIEnv& env,
jni::String sourceId,
jni::Object<> options)
: Source(env, std::make_unique<mbgl::style::CustomGeometrySource>(
jni::Make<std::string>(env, sourceId),
convertCustomGeometrySourceOptions(env, options,
std::bind(&CustomGeometrySource::fetchTile, this, std::placeholders::_1),
std::bind(&CustomGeometrySource::cancelTile, this, std::placeholders::_1)))) {
}
CustomGeometrySource::CustomGeometrySource(jni::JNIEnv& env,
mbgl::style::Source& coreSource,
AndroidRendererFrontend& frontend)
: Source(env, coreSource, createJavaPeer(env), frontend) {
}
CustomGeometrySource::~CustomGeometrySource() {
releaseThreads();
}
void CustomGeometrySource::fetchTile (const mbgl::CanonicalTileID& tileID) {
android::UniqueEnv _env = android::AttachEnv();
static auto fetchTile = javaClass.GetMethod<void (jni::jint, jni::jint, jni::jint)>(*_env, "fetchTile");
assert(javaPeer);
auto peer = jni::Cast(*_env, *javaPeer, javaClass);
peer.Call(*_env, fetchTile, (int)tileID.z, (int)tileID.x, (int)tileID.y);
};
void CustomGeometrySource::cancelTile(const mbgl::CanonicalTileID& tileID) {
android::UniqueEnv _env = android::AttachEnv();
static auto cancelTile = javaClass.GetMethod<void (jni::jint, jni::jint, jni::jint)>(*_env, "cancelTile");
assert(javaPeer);
auto peer = jni::Cast(*_env, *javaPeer, javaClass);
peer.Call(*_env, cancelTile, (int)tileID.z, (int)tileID.x, (int)tileID.y);
};
void CustomGeometrySource::startThreads() {
android::UniqueEnv _env = android::AttachEnv();
static auto startThreads = javaClass.GetMethod<void ()>(*_env, "startThreads");
assert(javaPeer);
auto peer = jni::Cast(*_env, *javaPeer, javaClass);
peer.Call(*_env, startThreads);
}
void CustomGeometrySource::releaseThreads() {
android::UniqueEnv _env = android::AttachEnv();
static auto releaseThreads = javaClass.GetMethod<void ()>(*_env, "releaseThreads");
assert(javaPeer);
auto peer = jni::Cast(*_env, *javaPeer, javaClass);
peer.Call(*_env, releaseThreads);
};
void CustomGeometrySource::setTileData(jni::JNIEnv& env,
jni::jint z,
jni::jint x,
jni::jint y,
jni::Object<geojson::FeatureCollection> jFeatures) {
using namespace mbgl::android::geojson;
// Convert the jni object
auto geometry = geojson::FeatureCollection::convert(env, jFeatures);
// Update the core source
source.as<mbgl::style::CustomGeometrySource>()->CustomGeometrySource::setTileData(CanonicalTileID(z, x, y), GeoJSON(geometry));
}
void CustomGeometrySource::invalidateTile(jni::JNIEnv&, jni::jint z, jni::jint x, jni::jint y) {
source.as<mbgl::style::CustomGeometrySource>()->CustomGeometrySource::invalidateTile(CanonicalTileID(z, x, y));
}
void CustomGeometrySource::invalidateBounds(jni::JNIEnv& env, jni::Object<LatLngBounds> jBounds) {
auto bounds = LatLngBounds::getLatLngBounds(env, jBounds);
source.as<mbgl::style::CustomGeometrySource>()->CustomGeometrySource::invalidateRegion(bounds);
}
jni::Array<jni::Object<geojson::Feature>> CustomGeometrySource::querySourceFeatures(jni::JNIEnv& env,
jni::Array<jni::Object<>> jfilter) {
using namespace mbgl::android::conversion;
using namespace mbgl::android::geojson;
std::vector<mbgl::Feature> features;
if (rendererFrontend) {
features = rendererFrontend->querySourceFeatures(source.getID(), { {}, toFilter(env, jfilter) });
}
return *convert<jni::Array<jni::Object<Feature>>, std::vector<mbgl::Feature>>(env, features);
}
jni::Class<CustomGeometrySource> CustomGeometrySource::javaClass;
jni::Object<Source> CustomGeometrySource::createJavaPeer(jni::JNIEnv& env) {
static auto constructor = CustomGeometrySource::javaClass.template GetConstructor<jni::jlong>(env);
return jni::Object<Source>(CustomGeometrySource::javaClass.New(env, constructor, reinterpret_cast<jni::jlong>(this)).Get());
}
void CustomGeometrySource::addToMap(JNIEnv& env, jni::Object<Source> obj, mbgl::Map& map, AndroidRendererFrontend& frontend) {
Source::addToMap(env, obj, map, frontend);
startThreads();
}
bool CustomGeometrySource::removeFromMap(JNIEnv& env, jni::Object<Source> source, mbgl::Map& map) {
bool successfullyRemoved = Source::removeFromMap(env, source, map);
if (successfullyRemoved) {
releaseThreads();
}
return successfullyRemoved;
}
void CustomGeometrySource::registerNative(jni::JNIEnv& env) {
// Lookup the class
CustomGeometrySource::javaClass = *jni::Class<CustomGeometrySource>::Find(env).NewGlobalRef(env).release();
#define METHOD(MethodPtr, name) jni::MakeNativePeerMethod<decltype(MethodPtr), (MethodPtr)>(name)
// Register the peer
jni::RegisterNativePeer<CustomGeometrySource>(
env, CustomGeometrySource::javaClass, "nativePtr",
std::make_unique<CustomGeometrySource, JNIEnv&, jni::String, jni::Object<>>,
"initialize",
"finalize",
METHOD(&CustomGeometrySource::querySourceFeatures, "querySourceFeatures"),
METHOD(&CustomGeometrySource::setTileData, "nativeSetTileData"),
METHOD(&CustomGeometrySource::invalidateTile, "nativeInvalidateTile"),
METHOD(&CustomGeometrySource::invalidateBounds, "nativeInvalidateBounds")
);
}
} // namespace android
} // namespace mbgl
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