webview_entry_point.cc revision 03b57e008b61dfcb1fbad3aea950ae0e001748b0 
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#include "android_webview/lib/main/aw_main_delegate.h"
6#include "android_webview/native/android_webview_jni_registrar.h"
7#include "base/android/jni_android.h"
8#include "base/android/jni_registrar.h"
9#include "base/android/jni_utils.h"
10#include "base/android/library_loader/library_loader_hooks.h"
11#include "components/navigation_interception/component_jni_registrar.h"
12#include "components/web_contents_delegate_android/component_jni_registrar.h"
13#include "content/public/app/android_library_loader_hooks.h"
14#include "content/public/app/content_main.h"
15#include "url/url_util.h"
16
17static base::android::RegistrationMethod
18    kWebViewDependencyRegisteredMethods[] = {
19    { "NavigationInterception",
20        navigation_interception::RegisterNavigationInterceptionJni },
21    { "WebContentsDelegateAndroid",
22        web_contents_delegate_android::RegisterWebContentsDelegateAndroidJni },
23};
24
25// This is called by the VM when the shared library is first loaded.
26// Most of the initialization is done in LibraryLoadedOnMainThread(), not here.
27JNI_EXPORT jint JNI_OnLoad(JavaVM* vm, void* reserved) {
28
29  base::android::SetLibraryLoadedHook(&content::LibraryLoaded);
30
31  base::android::InitVM(vm);
32  JNIEnv* env = base::android::AttachCurrentThread();
33  if (!base::android::RegisterLibraryLoaderEntryHook(env))
34    return -1;
35
36  // Register content JNI functions now, rather than waiting until
37  // LibraryLoadedOnMainThread, so that we can call into native code early.
38  if (!content::EnsureJniRegistered(env))
39    return -1;
40
41  // Register JNI for components we depend on.
42  if (!RegisterNativeMethods(
43      env,
44      kWebViewDependencyRegisteredMethods,
45      arraysize(kWebViewDependencyRegisteredMethods)))
46    return -1;
47
48  if (!android_webview::RegisterJni(env))
49    return -1;
50
51  base::android::InitReplacementClassLoader(env,
52                                            base::android::GetClassLoader(env));
53
54  content::SetContentMainDelegate(new android_webview::AwMainDelegate());
55
56  // Initialize url lib here while we are still single-threaded, in case we use
57  // CookieManager before initializing Chromium (which would normally have done
58  // this). It's safe to call this multiple times.
59  url::Initialize();
60
61  return JNI_VERSION_1_4;
62}
63