mojo_main.cc revision 6e8cce623b6e4fe0c9e4af605d675dd9d0338c38 
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/java_handler_thread.h"
8#include "base/android/jni_string.h"
9#include "base/at_exit.h"
10#include "base/bind.h"
11#include "base/command_line.h"
12#include "base/lazy_instance.h"
13#include "base/logging.h"
14#include "base/macros.h"
15#include "base/message_loop/message_loop.h"
16#include "jni/MojoMain_jni.h"
17#include "mojo/application_manager/application_loader.h"
18#include "mojo/application_manager/application_manager.h"
19#include "mojo/shell/context.h"
20#include "mojo/shell/init.h"
21#include "mojo/shell/run.h"
22#include "ui/gl/gl_surface_egl.h"
23
24using base::LazyInstance;
25
26namespace mojo {
27
28namespace {
29
30LazyInstance<scoped_ptr<base::MessageLoop> > g_java_message_loop =
31    LAZY_INSTANCE_INITIALIZER;
32
33LazyInstance<scoped_ptr<shell::Context> > g_context =
34    LAZY_INSTANCE_INITIALIZER;
35
36LazyInstance<scoped_ptr<base::android::JavaHandlerThread> > g_shell_thread =
37    LAZY_INSTANCE_INITIALIZER;
38
39void RunShell(std::vector<GURL> app_urls) {
40  g_context.Get()->Init();
41  g_context.Get()->set_ui_loop(g_java_message_loop.Get().get());
42  shell::Run(g_context.Get().get(), app_urls);
43}
44
45}  // namespace
46
47static void Init(JNIEnv* env, jclass clazz, jobject context) {
48  base::android::ScopedJavaLocalRef<jobject> scoped_context(env, context);
49
50  base::android::InitApplicationContext(env, scoped_context);
51
52  base::CommandLine::Init(0, 0);
53  mojo::shell::InitializeLogging();
54
55  // We want ~MessageLoop to happen prior to ~Context. Initializing
56  // LazyInstances is akin to stack-allocating objects; their destructors
57  // will be invoked first-in-last-out.
58  shell::Context* shell_context = new shell::Context();
59  g_context.Get().reset(shell_context);
60  g_java_message_loop.Get().reset(new base::MessageLoopForUI);
61  base::MessageLoopForUI::current()->Start();
62
63  // TODO(abarth): At which point should we switch to cross-platform
64  // initialization?
65
66  gfx::GLSurface::InitializeOneOff();
67}
68
69static void Start(JNIEnv* env, jclass clazz, jstring jurl) {
70  std::vector<GURL> app_urls;
71#if defined(MOJO_SHELL_DEBUG_URL)
72  app_urls.push_back(GURL(MOJO_SHELL_DEBUG_URL));
73  // Sleep for 5 seconds to give the debugger a chance to attach.
74  sleep(5);
75#else
76  if (jurl)
77    app_urls.push_back(GURL(base::android::ConvertJavaStringToUTF8(env, jurl)));
78#endif
79
80  g_shell_thread.Get().reset(
81      new base::android::JavaHandlerThread("shell_thread"));
82  g_shell_thread.Get()->Start();
83  g_shell_thread.Get()->message_loop()->PostTask(
84      FROM_HERE, base::Bind(&RunShell, app_urls));
85}
86
87bool RegisterMojoMain(JNIEnv* env) {
88  return RegisterNativesImpl(env);
89}
90
91}  // namespace mojo
92