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      1 // Copyright 2013 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 "mojo/shell/android/mojo_main.h"
      6 
      7 #include "base/android/jni_string.h"
      8 #include "base/at_exit.h"
      9 #include "base/bind.h"
     10 #include "base/command_line.h"
     11 #include "base/lazy_instance.h"
     12 #include "base/logging.h"
     13 #include "base/message_loop/message_loop.h"
     14 #include "jni/MojoMain_jni.h"
     15 #include "mojo/shell/context.h"
     16 #include "mojo/shell/init.h"
     17 #include "mojo/shell/run.h"
     18 #include "ui/gl/gl_surface_egl.h"
     19 
     20 using base::LazyInstance;
     21 
     22 namespace mojo {
     23 
     24 namespace {
     25 
     26 base::AtExitManager* g_at_exit = 0;
     27 
     28 LazyInstance<scoped_ptr<base::MessageLoop> > g_java_message_loop =
     29     LAZY_INSTANCE_INITIALIZER;
     30 
     31 LazyInstance<scoped_ptr<shell::Context> > g_context =
     32     LAZY_INSTANCE_INITIALIZER;
     33 
     34 }  // namspace
     35 
     36 static void Init(JNIEnv* env, jclass clazz, jobject context) {
     37   base::android::ScopedJavaLocalRef<jobject> scoped_context(env, context);
     38 
     39   base::android::InitApplicationContext(env, scoped_context);
     40 
     41   if (g_at_exit)
     42     return;
     43   g_at_exit = new base::AtExitManager();
     44   // TODO(abarth): Currently we leak g_at_exit.
     45 
     46   CommandLine::Init(0, 0);
     47   mojo::shell::InitializeLogging();
     48 
     49   g_java_message_loop.Get().reset(
     50       new base::MessageLoop(base::MessageLoop::TYPE_UI));
     51   base::MessageLoopForUI::current()->Start();
     52 
     53   // TODO(abarth): At which point should we switch to cross-platform
     54   // initialization?
     55 
     56   gfx::GLSurface::InitializeOneOff();
     57 }
     58 
     59 static void Start(JNIEnv* env, jclass clazz, jobject context, jstring jurl) {
     60   if (jurl) {
     61     std::string app_url = base::android::ConvertJavaStringToUTF8(env, jurl);
     62     std::vector<std::string> argv;
     63     argv.push_back("mojo_shell");
     64     argv.push_back("--app=" + app_url);
     65     CommandLine::ForCurrentProcess()->InitFromArgv(argv);
     66   }
     67 
     68   base::android::ScopedJavaGlobalRef<jobject> activity;
     69   activity.Reset(env, context);
     70 
     71   shell::Context* shell_context = new shell::Context();
     72   shell_context->set_activity(activity.obj());
     73   g_context.Get().reset(shell_context);
     74   shell::Run(shell_context);
     75 }
     76 
     77 bool RegisterMojoMain(JNIEnv* env) {
     78   return RegisterNativesImpl(env);
     79 }
     80 
     81 }  // namespace mojo
     82