shell_browser_main_parts.cc revision 1e9bf3e0803691d0a228da41fc608347b6db4340 
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 "ash/shell/content_client/shell_browser_main_parts.h"
6
7#include "ash/ash_switches.h"
8#include "ash/desktop_background/desktop_background_controller.h"
9#include "ash/shell.h"
10#include "ash/shell/shell_delegate_impl.h"
11#include "ash/shell/window_watcher.h"
12#include "ash/system/user/login_status.h"
13#include "base/bind.h"
14#include "base/command_line.h"
15#include "base/i18n/icu_util.h"
16#include "base/message_loop/message_loop.h"
17#include "base/strings/string_number_conversions.h"
18#include "base/threading/thread.h"
19#include "base/threading/thread_restrictions.h"
20#include "content/public/common/content_switches.h"
21#include "content/shell/browser/shell_browser_context.h"
22#include "content/shell/browser/shell_net_log.h"
23#include "net/base/net_module.h"
24#include "ui/aura/env.h"
25#include "ui/aura/root_window.h"
26#include "ui/aura/window.h"
27#include "ui/base/resource/resource_bundle.h"
28#include "ui/base/ui_base_paths.h"
29#include "ui/compositor/compositor.h"
30#include "ui/gfx/screen.h"
31#include "ui/message_center/message_center.h"
32#include "ui/views/focus/accelerator_handler.h"
33#include "ui/views/test/test_views_delegate.h"
34
35#if defined(USE_X11)
36#include "ui/events/x/touch_factory_x11.h"
37#endif
38
39#if defined(OS_CHROMEOS)
40#include "chromeos/audio/cras_audio_handler.h"
41#include "chromeos/dbus/dbus_thread_manager.h"
42#endif
43
44namespace ash {
45namespace shell {
46void InitWindowTypeLauncher();
47
48namespace {
49
50class ShellViewsDelegate : public views::TestViewsDelegate {
51 public:
52  ShellViewsDelegate() {}
53  virtual ~ShellViewsDelegate() {}
54
55  // Overridden from views::TestViewsDelegate:
56  virtual views::NonClientFrameView* CreateDefaultNonClientFrameView(
57      views::Widget* widget) OVERRIDE {
58    return ash::Shell::GetInstance()->CreateDefaultNonClientFrameView(widget);
59  }
60  virtual bool UseTransparentWindows() const OVERRIDE {
61    // Ash uses transparent window frames.
62    return true;
63  }
64  virtual void OnBeforeWidgetInit(
65      views::Widget::InitParams* params,
66      views::internal::NativeWidgetDelegate* delegate) OVERRIDE {
67    if (params->native_widget)
68      return;
69
70    if (!params->parent && !params->context && params->top_level)
71      params->context = Shell::GetPrimaryRootWindow();
72  }
73
74 private:
75  DISALLOW_COPY_AND_ASSIGN(ShellViewsDelegate);
76};
77
78}  // namespace
79
80ShellBrowserMainParts::ShellBrowserMainParts(
81    const content::MainFunctionParams& parameters)
82    : BrowserMainParts(),
83      delegate_(NULL) {
84}
85
86ShellBrowserMainParts::~ShellBrowserMainParts() {
87}
88
89void ShellBrowserMainParts::PreMainMessageLoopStart() {
90#if defined(USE_X11)
91  ui::TouchFactory::SetTouchDeviceListFromCommandLine();
92#endif
93}
94
95void ShellBrowserMainParts::PostMainMessageLoopStart() {
96#if defined(OS_CHROMEOS)
97  chromeos::DBusThreadManager::Initialize();
98#endif
99}
100
101void ShellBrowserMainParts::PreMainMessageLoopRun() {
102  net_log_.reset(new content::ShellNetLog());
103  browser_context_.reset(new content::ShellBrowserContext(
104      false, net_log_.get()));
105
106  // A ViewsDelegate is required.
107  if (!views::ViewsDelegate::views_delegate)
108    views::ViewsDelegate::views_delegate = new ShellViewsDelegate;
109
110  delegate_ = new ash::shell::ShellDelegateImpl;
111  // The global message center state must be initialized absent
112  // g_browser_process.
113  message_center::MessageCenter::Initialize();
114
115#if defined(OS_CHROMEOS)
116  // Create CrasAudioHandler for testing since g_browser_process
117  // is absent.
118  chromeos::CrasAudioHandler::InitializeForTesting();
119#endif
120
121  ash::Shell::CreateInstance(delegate_);
122  ash::Shell::GetInstance()->set_browser_context(browser_context_.get());
123  ash::Shell::GetInstance()->CreateLauncher();
124  ash::Shell::GetInstance()->UpdateAfterLoginStatusChange(
125      user::LOGGED_IN_USER);
126
127  window_watcher_.reset(new ash::shell::WindowWatcher);
128  gfx::Screen* screen = Shell::GetInstance()->GetScreen();
129  screen->AddObserver(window_watcher_.get());
130  delegate_->SetWatcher(window_watcher_.get());
131
132  ash::shell::InitWindowTypeLauncher();
133
134  Shell::GetInstance()->desktop_background_controller()->SetDefaultWallpaper(
135      false /* is_guest */);
136
137  ash::Shell::GetPrimaryRootWindow()->GetDispatcher()->ShowRootWindow();
138}
139
140void ShellBrowserMainParts::PostMainMessageLoopRun() {
141  gfx::Screen* screen = Shell::GetInstance()->GetScreen();
142  screen->RemoveObserver(window_watcher_.get());
143
144  window_watcher_.reset();
145  delegate_->SetWatcher(NULL);
146  delegate_ = NULL;
147  ash::Shell::DeleteInstance();
148  // The global message center state must be shutdown absent
149  // g_browser_process.
150  message_center::MessageCenter::Shutdown();
151
152#if defined(OS_CHROMEOS)
153  chromeos::CrasAudioHandler::Shutdown();
154#endif
155
156  aura::Env::DeleteInstance();
157
158  // The keyboard may have created a WebContents. The WebContents is destroyed
159  // with the UI, and it needs the BrowserContext to be alive during its
160  // destruction. So destroy all of the UI elements before destroying the
161  // browser context.
162  browser_context_.reset();
163}
164
165bool ShellBrowserMainParts::MainMessageLoopRun(int* result_code) {
166  base::MessageLoopForUI::current()->Run();
167  return true;
168}
169
170}  // namespace shell
171}  // namespace ash
172