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      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/shell_init_params.h"
     13 #include "ash/system/user/login_status.h"
     14 #include "base/bind.h"
     15 #include "base/command_line.h"
     16 #include "base/i18n/icu_util.h"
     17 #include "base/message_loop/message_loop.h"
     18 #include "base/strings/string_number_conversions.h"
     19 #include "base/threading/thread.h"
     20 #include "base/threading/thread_restrictions.h"
     21 #include "content/public/browser/context_factory.h"
     22 #include "content/public/common/content_switches.h"
     23 #include "content/shell/browser/shell_browser_context.h"
     24 #include "content/shell/browser/shell_net_log.h"
     25 #include "net/base/net_module.h"
     26 #include "ui/aura/env.h"
     27 #include "ui/aura/window.h"
     28 #include "ui/aura/window_tree_host.h"
     29 #include "ui/base/ui_base_paths.h"
     30 #include "ui/compositor/compositor.h"
     31 #include "ui/gfx/screen.h"
     32 #include "ui/message_center/message_center.h"
     33 #include "ui/views/test/test_views_delegate.h"
     34 #include "ui/wm/core/wm_state.h"
     35 
     36 #if defined(USE_X11)
     37 #include "ui/events/x/touch_factory_x11.h"
     38 #endif
     39 
     40 #if defined(OS_CHROMEOS)
     41 #include "chromeos/audio/cras_audio_handler.h"
     42 #include "chromeos/dbus/dbus_thread_manager.h"
     43 #endif
     44 
     45 namespace ash {
     46 namespace shell {
     47 void InitWindowTypeLauncher();
     48 
     49 namespace {
     50 
     51 class ShellViewsDelegate : public views::TestViewsDelegate {
     52  public:
     53   ShellViewsDelegate() {}
     54   virtual ~ShellViewsDelegate() {}
     55 
     56   // Overridden from views::TestViewsDelegate:
     57   virtual views::NonClientFrameView* CreateDefaultNonClientFrameView(
     58       views::Widget* widget) OVERRIDE {
     59     return ash::Shell::GetInstance()->CreateDefaultNonClientFrameView(widget);
     60   }
     61   virtual void OnBeforeWidgetInit(
     62       views::Widget::InitParams* params,
     63       views::internal::NativeWidgetDelegate* delegate) OVERRIDE {
     64     if (params->opacity == views::Widget::InitParams::INFER_OPACITY)
     65       params->opacity = views::Widget::InitParams::TRANSLUCENT_WINDOW;
     66 
     67     if (params->native_widget)
     68       return;
     69 
     70     if (!params->parent && !params->context && !params->child)
     71       params->context = Shell::GetPrimaryRootWindow();
     72   }
     73 
     74  private:
     75   DISALLOW_COPY_AND_ASSIGN(ShellViewsDelegate);
     76 };
     77 
     78 }  // namespace
     79 
     80 ShellBrowserMainParts::ShellBrowserMainParts(
     81     const content::MainFunctionParams& parameters)
     82     : BrowserMainParts(),
     83       delegate_(NULL) {
     84 }
     85 
     86 ShellBrowserMainParts::~ShellBrowserMainParts() {
     87 }
     88 
     89 void ShellBrowserMainParts::PreMainMessageLoopStart() {
     90 #if defined(USE_X11)
     91   ui::TouchFactory::SetTouchDeviceListFromCommandLine();
     92 #endif
     93 }
     94 
     95 void ShellBrowserMainParts::PostMainMessageLoopStart() {
     96 #if defined(OS_CHROMEOS)
     97   chromeos::DBusThreadManager::Initialize();
     98 #endif
     99 }
    100 
    101 void ShellBrowserMainParts::ToolkitInitialized() {
    102   wm_state_.reset(new wm::WMState);
    103 }
    104 
    105 void ShellBrowserMainParts::PreMainMessageLoopRun() {
    106   net_log_.reset(new content::ShellNetLog("ash_shell"));
    107   browser_context_.reset(new content::ShellBrowserContext(
    108       false, net_log_.get()));
    109 
    110   // A ViewsDelegate is required.
    111   if (!views::ViewsDelegate::views_delegate)
    112     views::ViewsDelegate::views_delegate = new ShellViewsDelegate;
    113 
    114   delegate_ = new ash::shell::ShellDelegateImpl;
    115   // The global message center state must be initialized absent
    116   // g_browser_process.
    117   message_center::MessageCenter::Initialize();
    118 
    119 #if defined(OS_CHROMEOS)
    120   // Create CrasAudioHandler for testing since g_browser_process
    121   // is absent.
    122   chromeos::CrasAudioHandler::InitializeForTesting();
    123 #endif
    124 
    125   ash::ShellInitParams init_params;
    126   init_params.delegate = delegate_;
    127   init_params.context_factory = content::GetContextFactory();
    128   ash::Shell::CreateInstance(init_params);
    129   delegate_->set_browser_context(browser_context_.get());
    130   ash::Shell::GetInstance()->CreateShelf();
    131   ash::Shell::GetInstance()->UpdateAfterLoginStatusChange(
    132       user::LOGGED_IN_USER);
    133 
    134   window_watcher_.reset(new ash::shell::WindowWatcher);
    135   gfx::Screen* screen = Shell::GetInstance()->GetScreen();
    136   screen->AddObserver(window_watcher_.get());
    137   delegate_->SetWatcher(window_watcher_.get());
    138 
    139   ash::shell::InitWindowTypeLauncher();
    140 
    141   ash::Shell::GetPrimaryRootWindow()->GetHost()->Show();
    142 }
    143 
    144 void ShellBrowserMainParts::PostMainMessageLoopRun() {
    145   gfx::Screen* screen = Shell::GetInstance()->GetScreen();
    146   screen->RemoveObserver(window_watcher_.get());
    147 
    148   window_watcher_.reset();
    149   delegate_->SetWatcher(NULL);
    150   delegate_ = NULL;
    151   ash::Shell::DeleteInstance();
    152   // The global message center state must be shutdown absent
    153   // g_browser_process.
    154   message_center::MessageCenter::Shutdown();
    155 
    156 #if defined(OS_CHROMEOS)
    157   chromeos::CrasAudioHandler::Shutdown();
    158 #endif
    159 
    160   aura::Env::DeleteInstance();
    161 
    162   // The keyboard may have created a WebContents. The WebContents is destroyed
    163   // with the UI, and it needs the BrowserContext to be alive during its
    164   // destruction. So destroy all of the UI elements before destroying the
    165   // browser context.
    166   browser_context_.reset();
    167 }
    168 
    169 bool ShellBrowserMainParts::MainMessageLoopRun(int* result_code) {
    170   base::MessageLoopForUI::current()->Run();
    171   return true;
    172 }
    173 
    174 }  // namespace shell
    175 }  // namespace ash
    176