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base / android / jni_string.h [blame]
// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef BASE_ANDROID_JNI_STRING_H_
#define BASE_ANDROID_JNI_STRING_H_
#include <jni.h>
#include <string>
#include <string_view>
#include "base/android/scoped_java_ref.h"
#include "base/base_export.h"
namespace base {
namespace android {
// Convert a Java string to UTF8. Returns a std string.
BASE_EXPORT void ConvertJavaStringToUTF8(JNIEnv* env,
jstring str,
std::string* result);
BASE_EXPORT std::string ConvertJavaStringToUTF8(JNIEnv* env, jstring str);
BASE_EXPORT std::string ConvertJavaStringToUTF8(const JavaRef<jstring>& str);
BASE_EXPORT std::string ConvertJavaStringToUTF8(JNIEnv* env,
const JavaRef<jstring>& str);
// Convert a std string to Java string.
BASE_EXPORT ScopedJavaLocalRef<jstring> ConvertUTF8ToJavaString(
JNIEnv* env,
std::string_view str);
// Convert a Java string to UTF16. Returns a std::u16string.
BASE_EXPORT void ConvertJavaStringToUTF16(JNIEnv* env,
jstring str,
std::u16string* result);
BASE_EXPORT std::u16string ConvertJavaStringToUTF16(JNIEnv* env, jstring str);
BASE_EXPORT std::u16string ConvertJavaStringToUTF16(
const JavaRef<jstring>& str);
BASE_EXPORT std::u16string ConvertJavaStringToUTF16(
JNIEnv* env,
const JavaRef<jstring>& str);
// Convert a std::u16string to a Java string.
BASE_EXPORT ScopedJavaLocalRef<jstring> ConvertUTF16ToJavaString(
JNIEnv* env,
std::u16string_view str);
} // namespace android
} // namespace base
namespace jni_zero {
template <>
inline std::string FromJniType<std::string>(JNIEnv* env,
const JavaRef<jobject>& input) {
return base::android::ConvertJavaStringToUTF8(
env, static_cast<jstring>(input.obj()));
}
template <>
inline ScopedJavaLocalRef<jobject> ToJniType<std::string>(
JNIEnv* env,
const std::string& input) {
return base::android::ConvertUTF8ToJavaString(env, input);
}
template <>
inline ScopedJavaLocalRef<jobject> ToJniType<const char>(JNIEnv* env,
const char* input) {
return base::android::ConvertUTF8ToJavaString(env, input);
}
template <>
inline std::u16string FromJniType<std::u16string>(
JNIEnv* env,
const JavaRef<jobject>& input) {
return base::android::ConvertJavaStringToUTF16(
env, static_cast<jstring>(input.obj()));
}
template <>
inline ScopedJavaLocalRef<jobject> ToJniType<std::u16string>(
JNIEnv* env,
const std::u16string& input) {
return base::android::ConvertUTF16ToJavaString(env, input);
}
template <>
inline ScopedJavaLocalRef<jobject> ToJniType<std::u16string_view>(
JNIEnv* env,
const std::u16string_view& input) {
return base::android::ConvertUTF16ToJavaString(env, input);
}
} // namespace jni_zero
#endif // BASE_ANDROID_JNI_STRING_H_