void SpriteStore::setURL(const std::string& url) {
if (url.empty()) {
// Treat a non-existent sprite as a successfully loaded empty sprite.
loaded = true;
return;
}
std::string spriteURL(url + (pixelRatio > 1 ? "@2x" : "") + ".png");
std::string jsonURL(url + (pixelRatio > 1 ? "@2x" : "") + ".json");
loader = std::make_unique<Loader>();
FileSource* fs = util::ThreadContext::getFileSource();
loader->jsonRequest = fs->request({ Resource::Kind::SpriteJSON, jsonURL }, util::RunLoop::getLoop(),
[this, jsonURL](const Response& res) {
if (res.stale) {
// Only handle fresh responses.
return;
}
loader->jsonRequest = nullptr;
if (res.error) {
std::stringstream message;
message << "Failed to load [" << jsonURL << "]: " << res.error->message;
emitSpriteLoadingFailed(message.str());
return;
} else {
loader->json = res.data;
}
emitSpriteLoadedIfComplete();
});
loader->spriteRequest =
fs->request({ Resource::Kind::SpriteImage, spriteURL }, util::RunLoop::getLoop(),
[this, spriteURL](const Response& res) {
if (res.stale) {
// Only handle fresh responses.
return;
}
loader->spriteRequest = nullptr;
if (res.error) {
std::stringstream message;
message << "Failed to load [" << spriteURL << "]: " << res.error->message;
emitSpriteLoadingFailed(message.str());
return;
} else {
loader->image = res.data;
}
emitSpriteLoadedIfComplete();
});
}
void SpriteStore::setURL(const std::string& url) {
if (url.empty()) {
// Treat a non-existent sprite as a successfully loaded empty sprite.
loaded = true;
return;
}
std::string spriteURL(url + (pixelRatio > 1 ? "@2x" : "") + ".png");
std::string jsonURL(url + (pixelRatio > 1 ? "@2x" : "") + ".json");
loader = std::make_unique<Loader>();
FileSource* fs = util::ThreadContext::getFileSource();
loader->jsonRequest = fs->request({ Resource::Kind::SpriteJSON, jsonURL },
[this, jsonURL](Response res) {
if (res.stale) {
// Only handle fresh responses.
return;
}
loader->jsonRequest = nullptr;
if (res.error) {
observer->onSpriteError(std::make_exception_ptr(std::runtime_error(res.error->message)));
} else {
loader->json = res.data;
emitSpriteLoadedIfComplete();
}
});
loader->spriteRequest =
fs->request({ Resource::Kind::SpriteImage, spriteURL },
[this, spriteURL](Response res) {
if (res.stale) {
// Only handle fresh responses.
return;
}
loader->spriteRequest = nullptr;
if (res.error) {
observer->onSpriteError(std::make_exception_ptr(std::runtime_error(res.error->message)));
} else {
loader->image = res.data;
emitSpriteLoadedIfComplete();
}
});
}
Sprite::Sprite(const std::string& baseUrl, float pixelRatio_)
: pixelRatio(pixelRatio_ > 1 ? 2 : 1) {
if (baseUrl.empty()) {
// Treat a non-existent sprite as a successfully loaded empty sprite.
loaded = true;
return;
}
std::string spriteURL(baseUrl + (pixelRatio_ > 1 ? "@2x" : "") + ".png");
std::string jsonURL(baseUrl + (pixelRatio_ > 1 ? "@2x" : "") + ".json");
loader = std::make_unique<Loader>();
FileSource* fs = util::ThreadContext::getFileSource();
loader->jsonRequest = fs->request({ Resource::Kind::JSON, jsonURL }, util::RunLoop::getLoop(),
[this, jsonURL](const Response& res) {
loader->jsonRequest = nullptr;
if (res.status == Response::Successful) {
loader->data->json = res.data;
loader->loadedJSON = true;
} else {
std::stringstream message;
message << "Failed to load [" << jsonURL << "]: " << res.message;
emitSpriteLoadingFailed(message.str());
return;
}
emitSpriteLoadedIfComplete();
});
loader->spriteRequest =
fs->request({ Resource::Kind::Image, spriteURL }, util::RunLoop::getLoop(),
[this, spriteURL](const Response& res) {
loader->spriteRequest = nullptr;
if (res.status == Response::Successful) {
loader->data->image = res.data;
loader->loadedImage = true;
} else {
std::stringstream message;
message << "Failed to load [" << spriteURL << "]: " << res.message;
emitSpriteLoadingFailed(message.str());
return;
}
emitSpriteLoadedIfComplete();
});
}