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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 "chrome/browser/ui/ash/ash_init.h"
      6 
      7 #include "ash/accelerators/accelerator_controller.h"
      8 #include "ash/ash_switches.h"
      9 #include "ash/high_contrast/high_contrast_controller.h"
     10 #include "ash/magnifier/magnification_controller.h"
     11 #include "ash/magnifier/partial_magnification_controller.h"
     12 #include "ash/shell.h"
     13 #include "ash/wm/event_rewriter_event_filter.h"
     14 #include "base/command_line.h"
     15 #include "chrome/browser/browser_shutdown.h"
     16 #include "chrome/browser/chromeos/accessibility/accessibility_manager.h"
     17 #include "chrome/browser/chromeos/accessibility/magnification_manager.h"
     18 #include "chrome/browser/lifetime/application_lifetime.h"
     19 #include "chrome/browser/ui/ash/chrome_shell_delegate.h"
     20 #include "chrome/browser/ui/ash/event_rewriter.h"
     21 #include "chrome/browser/ui/ash/screenshot_taker.h"
     22 #include "chrome/common/chrome_switches.h"
     23 #include "ui/aura/env.h"
     24 #include "ui/aura/root_window.h"
     25 
     26 #if defined(OS_CHROMEOS)
     27 #include "base/chromeos/chromeos_version.h"
     28 #include "chrome/browser/ui/ash/brightness_controller_chromeos.h"
     29 #include "chrome/browser/ui/ash/ime_controller_chromeos.h"
     30 #include "chrome/browser/ui/ash/volume_controller_chromeos.h"
     31 #include "chromeos/chromeos_switches.h"
     32 #include "chromeos/login/login_state.h"
     33 #include "ui/base/x/x11_util.h"
     34 #endif
     35 
     36 namespace chrome {
     37 
     38 bool ShouldOpenAshOnStartup() {
     39 #if defined(OS_CHROMEOS)
     40   return true;
     41 #endif
     42   // TODO(scottmg): http://crbug.com/133312, will need this for Win8 too.
     43   return CommandLine::ForCurrentProcess()->HasSwitch(switches::kOpenAsh);
     44 }
     45 
     46 void OpenAsh() {
     47 #if defined(OS_CHROMEOS)
     48   if (base::chromeos::IsRunningOnChromeOS()) {
     49     // Hides the cursor outside of the Aura root window. The cursor will be
     50     // drawn within the Aura root window, and it'll remain hidden after the
     51     // Aura window is closed.
     52     ui::HideHostCursor();
     53   }
     54 
     55   // Hide the mouse cursor completely at boot.
     56   if (!chromeos::LoginState::Get()->IsUserLoggedIn())
     57     ash::Shell::set_initially_hide_cursor(true);
     58 #endif
     59 
     60   // Shell takes ownership of ChromeShellDelegate.
     61   ash::Shell* shell = ash::Shell::CreateInstance(new ChromeShellDelegate);
     62   shell->event_rewriter_filter()->SetEventRewriterDelegate(
     63       scoped_ptr<ash::EventRewriterDelegate>(new EventRewriter).Pass());
     64   shell->accelerator_controller()->SetScreenshotDelegate(
     65       scoped_ptr<ash::ScreenshotDelegate>(new ScreenshotTaker).Pass());
     66 #if defined(OS_CHROMEOS)
     67   shell->accelerator_controller()->SetBrightnessControlDelegate(
     68       scoped_ptr<ash::BrightnessControlDelegate>(
     69           new BrightnessController).Pass());
     70   shell->accelerator_controller()->SetImeControlDelegate(
     71       scoped_ptr<ash::ImeControlDelegate>(new ImeController).Pass());
     72   ash::Shell::GetInstance()->high_contrast_controller()->SetEnabled(
     73       chromeos::AccessibilityManager::Get()->IsHighContrastEnabled());
     74 
     75   DCHECK(chromeos::MagnificationManager::Get());
     76   bool magnifier_enabled =
     77       chromeos::MagnificationManager::Get()->IsMagnifierEnabled();
     78   ash::MagnifierType magnifier_type =
     79       chromeos::MagnificationManager::Get()->GetMagnifierType();
     80   ash::Shell::GetInstance()->magnification_controller()->
     81       SetEnabled(magnifier_enabled && magnifier_type == ash::MAGNIFIER_FULL);
     82   ash::Shell::GetInstance()->partial_magnification_controller()->
     83       SetEnabled(magnifier_enabled && magnifier_type == ash::MAGNIFIER_PARTIAL);
     84 
     85   if (!CommandLine::ForCurrentProcess()->HasSwitch(
     86       switches::kDisableZeroBrowsersOpenForTests)) {
     87     chrome::StartKeepAlive();
     88   }
     89 #endif
     90   ash::Shell::GetPrimaryRootWindow()->ShowRootWindow();
     91 }
     92 
     93 void CloseAsh() {
     94   // If shutdown is initiated by |BrowserX11IOErrorHandler|, don't
     95   // try to cleanup resources.
     96   if (!browser_shutdown::ShuttingDownWithoutClosingBrowsers() &&
     97       ash::Shell::HasInstance()) {
     98     ash::Shell::DeleteInstance();
     99   }
    100 }
    101 
    102 }  // namespace chrome
    103