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// Copyright 2025 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/regional_capabilities/regional_capabilities_service_client_android.h"
#include "base/android/jni_android.h"
#include "base/android/jni_string.h"
#include "base/functional/callback.h"
#include "base/memory/ptr_util.h"
#include "base/strings/string_util.h"
#include "chrome/browser/regional_capabilities/android/jni_headers/RegionalCapabilitiesServiceClientAndroid_jni.h"
#include "chrome/browser/regional_capabilities/regional_capabilities_service_client.h"
#include "components/country_codes/country_codes.h"
#include "components/variations/service/variations_service.h"
using ::country_codes::CountryId;
namespace regional_capabilities {
RegionalCapabilitiesServiceClientAndroid::
RegionalCapabilitiesServiceClientAndroid(
variations::VariationsService* variations_service)
: RegionalCapabilitiesServiceClient(variations_service) {}
RegionalCapabilitiesServiceClientAndroid::
~RegionalCapabilitiesServiceClientAndroid() = default;
void RegionalCapabilitiesServiceClientAndroid::FetchCountryId(
CountryIdCallback on_country_id_fetched) {
// On Android get it from a device API in Java.
// Usage of `WeakPtr` is crucial here, as `RegionalCapabilitiesService` is
// not guaranteed to be alive when the response from Java arrives.
auto heap_callback =
std::make_unique<CountryIdCallback>(std::move(on_country_id_fetched));
// The ownership of the callback on the heap is passed to Java. It will be
// deleted by JNI_RegionalCapabilitiesService_ProcessDeviceCountryResponse.
Java_RegionalCapabilitiesServiceClientAndroid_requestDeviceCountry(
base::android::AttachCurrentThread(),
reinterpret_cast<intptr_t>(heap_callback.release()));
}
void JNI_RegionalCapabilitiesServiceClientAndroid_ProcessDeviceCountryResponse(
JNIEnv* env,
jlong ptr_to_native_callback,
const base::android::JavaParamRef<jstring>& j_device_country) {
// Using base::WrapUnique ensures that the callback is deleted when this goes
// out of scope.
using CountryIdCallback =
RegionalCapabilitiesService::Client::CountryIdCallback;
std::unique_ptr<CountryIdCallback> heap_callback = base::WrapUnique(
reinterpret_cast<CountryIdCallback*>(ptr_to_native_callback));
CHECK(heap_callback);
if (!j_device_country) {
return;
}
std::string device_country_code = base::ToUpperASCII(
base::android::ConvertJavaStringToUTF8(env, j_device_country));
std::move(*heap_callback).Run(CountryId(device_country_code));
}
} // namespace regional_capabilities
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