components/resource_provider/android/android_hooks.cc

   1 // Copyright 2015 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 <vector>
   6
   7 #include "base/android/base_jni_onload.h"
   8 #include "base/android/jni_android.h"
   9 #include "base/android/library_loader/library_loader_hooks.h"
  10 #include "base/bind.h"
  11 #include "components/resource_provider/jni/Main_jni.h"
  12
  13 namespace {
  14 bool RegisterJNI(JNIEnv* env) {
  15   return true;
  16 }
  17
  18 bool Init() {
  19   return true;
  20 }
  21 }  // namespace
  22
  23 // This is called by the VM when the shared library is first loaded.
  24 JNI_EXPORT jint JNI_OnLoad(JavaVM* vm, void* reserved) {
  25   std::vector<base::android::RegisterCallback> register_callbacks;
  26   register_callbacks.push_back(base::Bind(&RegisterJNI));
  27   register_callbacks.push_back(
  28       base::Bind(&resource_provider::RegisterNativesImpl));
  29
  30   std::vector<base::android::InitCallback> init_callbacks;
  31   init_callbacks.push_back(base::Bind(&Init));
  32
  33   if (!base::android::OnJNIOnLoadRegisterJNI(vm, register_callbacks) ||
  34       !base::android::OnJNIOnLoadInit(init_callbacks)) {
  35     return -1;
  36   }
  37
  38   // There cannot be two AtExitManagers at the same time. Remove the one from
  39   // LibraryLoader as ApplicationRunner also uses one.
  40   base::android::LibraryLoaderExitHook();
  41
  42   return JNI_VERSION_1_4;
  43 }
  44
  45 extern "C" JNI_EXPORT void InitApplicationContext(
  46     const base::android::JavaRef<jobject>& context) {
  47   JNIEnv* env = base::android::AttachCurrentThread();
  48   base::android::InitApplicationContext(env, context);
  49   resource_provider::Java_Main_init(
  50       env, base::android::GetApplicationContext());
  51 }