1// Copyright (c) 2012 The Chromium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5#ifndef BASE_ANDROID_JNI_STRING_H_
6#define BASE_ANDROID_JNI_STRING_H_
7
8#include <jni.h>
9#include <string>
10
11#include "base/android/scoped_java_ref.h"
12#include "base/base_export.h"
13#include "base/strings/string_piece.h"
14
15namespace base {
16namespace android {
17
18// Convert a Java string to UTF8. Returns a std string.
19BASE_EXPORT void ConvertJavaStringToUTF8(JNIEnv* env,
20                                         jstring str,
21                                         std::string* result);
22BASE_EXPORT std::string ConvertJavaStringToUTF8(JNIEnv* env, jstring str);
23BASE_EXPORT std::string ConvertJavaStringToUTF8(const JavaRef<jstring>& str);
24
25// Convert a std string to Java string.
26BASE_EXPORT ScopedJavaLocalRef<jstring> ConvertUTF8ToJavaString(
27    JNIEnv* env,
28    const base::StringPiece& str);
29
30// Convert a Java string to UTF16. Returns a string16.
31BASE_EXPORT void ConvertJavaStringToUTF16(JNIEnv* env,
32                                          jstring str,
33                                          string16* result);
34BASE_EXPORT string16 ConvertJavaStringToUTF16(JNIEnv* env, jstring str);
35BASE_EXPORT string16 ConvertJavaStringToUTF16(const JavaRef<jstring>& str);
36
37// Convert a string16 to a Java string.
38BASE_EXPORT ScopedJavaLocalRef<jstring> ConvertUTF16ToJavaString(
39    JNIEnv* env,
40    const base::StringPiece16& str);
41
42}  // namespace android
43}  // namespace base
44
45#endif  // BASE_ANDROID_JNI_STRING_H_
46