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