1 // Copyright 2014 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 #include <jni.h>
6
7 #include "android_webview/native/aw_assets.h"
8
9 #include "base/android/jni_array.h"
10 #include "base/android/jni_string.h"
11 #include "base/android/scoped_java_ref.h"
12 #include "jni/AwAssets_jni.h"
13
14 namespace android_webview {
15 namespace AwAssets {
16
OpenAsset(const std::string & filename,int * fd,int64 * offset,int64 * size)17 bool OpenAsset(const std::string& filename,
18 int* fd,
19 int64* offset,
20 int64* size) {
21 JNIEnv* env = base::android::AttachCurrentThread();
22 ScopedJavaLocalRef<jlongArray> jarr = Java_AwAssets_openAsset(
23 env,
24 base::android::GetApplicationContext(),
25 base::android::ConvertUTF8ToJavaString(env, filename).Release());
26 std::vector<long> results;
27 base::android::JavaLongArrayToLongVector(env, jarr.obj(), &results);
28 DCHECK_EQ(3U, results.size());
29 *fd = static_cast<int>(results[0]);
30 *offset = results[1];
31 *size = results[2];
32 return *fd != -1;
33 }
34
35 } // namespace AwAssets
36
RegisterAwAssets(JNIEnv * env)37 bool RegisterAwAssets(JNIEnv* env) {
38 return RegisterNativesImpl(env);
39 }
40
41 } // namespace android_webview
42