Java content handler for Android.

services/android/java_handler.cc

+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "services/android/java_handler.h"
+
+#include "base/android/jni_android.h"
+#include "base/android/jni_string.h"
+#include "base/files/file_path.h"
+#include "base/logging.h"
+#include "base/scoped_native_library.h"
+#include "jni/JavaHandler_jni.h"
+#include "mojo/android/system/base_run_loop.h"
+#include "mojo/android/system/core_impl.h"
+#include "mojo/application/application_runner_chromium.h"
+#include "mojo/application/content_handler_factory.h"
+#include "mojo/common/data_pipe_utils.h"
+#include "mojo/public/c/system/main.h"
+#include "mojo/public/cpp/application/application_impl.h"
+
+using base::android::AttachCurrentThread;
+using base::android::ScopedJavaLocalRef;
+using base::android::ConvertJavaStringToUTF8;
+using base::android::ConvertUTF8ToJavaString;
+using base::android::GetApplicationContext;
+
+namespace services {
+namespace android {
+JavaHandler::JavaHandler() : content_handler_factory_(this) {
+}
+
+JavaHandler::~JavaHandler() {
+}
+
+void JavaHandler::RunApplication(
+    mojo::InterfaceRequest<mojo::Application> application_request,
+    mojo::URLResponsePtr response) {
+  JNIEnv* env = base::android::AttachCurrentThread();
+  ScopedJavaLocalRef<jstring> j_archive_path =
+      Java_JavaHandler_getNewTempLibraryPath(env, GetApplicationContext());
+  base::FilePath archive_path(
+      base::android::ConvertJavaStringToUTF8(env, j_archive_path.obj()));
+
+  mojo::common::BlockingCopyToFile(response->body.Pass(), archive_path);
+
+  jobject context = base::android::GetApplicationContext();
+  Java_JavaHandler_bootstrap(
+      env, context, j_archive_path.obj(),
+      application_request.PassMessagePipe().release().value());
+}
+
+void JavaHandler::Initialize(mojo::ApplicationImpl* app) {
+}
+
+bool JavaHandler::ConfigureIncomingConnection(
+    mojo::ApplicationConnection* connection) {
+  connection->AddService(&content_handler_factory_);
+  return true;
+}
+
+bool RegisterJavaHandlerJni(JNIEnv* env) {
+  return RegisterNativesImpl(env);
+}
+
+}  // namespace android
+}  // namespace services
+
+MojoResult MojoMain(MojoHandle shell_handle) {
+  mojo::ApplicationRunnerChromium runner(new services::android::JavaHandler());
+  return runner.Run(shell_handle);
+}
+
+JNI_EXPORT jint JNI_OnLoad(JavaVM* vm, void* reserved) {
+  base::android::InitVM(vm);
+  JNIEnv* env = base::android::AttachCurrentThread();
+
+  if (!services::android::RegisterJavaHandlerJni(env))
+    return -1;
+
+  if (!mojo::android::RegisterCoreImpl(env))
+    return -1;
+
+  if (!mojo::android::RegisterBaseRunLoop(env))
+    return -1;
+
+  return JNI_VERSION_1_4;
+}
+
+// This is needed only if the application actually needs to access the
+// application context.

[qsr, 2015/02/05 16:50:08]

s/only if/because/

[etiennej, 2015/02/06 16:22:29]

Done.

+extern "C" JNI_EXPORT void InitApplicationContext(
+    const base::android::JavaRef<jobject>& context) {
+  JNIEnv* env = base::android::AttachCurrentThread();
+  base::android::InitApplicationContext(env, context);
+}
+