android_webview/lib/main/webview_entry_point.cc

   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
  17 static 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.
  27 JNI_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 }