chrome/browser/lifetime/application_lifetime_win.cc

   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/lifetime/application_lifetime.h"
   6
   7 #include "base/bind.h"
   8 #include "base/prefs/pref_service.h"
   9 #include "base/win/metro.h"
  10 #include "base/win/windows_version.h"
  11 #include "chrome/browser/browser_process.h"
  12 #include "chrome/browser/first_run/upgrade_util.h"
  13 #include "chrome/browser/ui/browser_finder.h"
  14 #include "chrome/common/pref_names.h"
  15 #include "content/public/browser/browser_thread.h"
  16 #include "ui/views/widget/widget.h"
  17
  18 #if defined(USE_AURA)
  19 #include "base/environment.h"
  20 #include "base/files/file_path.h"
  21 #include "base/path_service.h"
  22 #include "chrome/browser/metro_utils/metro_chrome_win.h"
  23 #include "chrome/browser/shell_integration.h"
  24 #include "chrome/common/chrome_constants.h"
  25 #include "chrome/installer/util/util_constants.h"
  26 #include "content/public/browser/web_contents.h"
  27 #include "ui/aura/remote_root_window_host_win.h"
  28 #endif
  29
  30 namespace chrome {
  31
  32 #if !defined(USE_AURA)
  33 void HandleAppExitingForPlatform() {
  34   views::Widget::CloseAllSecondaryWidgets();
  35 }
  36 #endif
  37
  38 // Following set of functions, which are used to switch chrome mode after
  39 // restart are used for in places where either user explicitly wants to switch
  40 // mode or some functionality is not available in either mode and we ask user
  41 // to switch mode.
  42 // Here mode refers to Windows 8 modes such as Metro (also called immersive)
  43 // and desktop mode (Classic or traditional).
  44
  45 // Mode switch based on current mode which is devised from current process.
  46 void AttemptRestartWithModeSwitch() {
  47 #if defined(USE_AURA)
  48   // This function should be called only from non aura code path.
  49   // In aura/ash windows world browser process is always non metro.
  50   CHECK(false);
  51   return;
  52 #endif
  53   // The kRestartSwitchMode preference does not exists for Windows 7 and older
  54   // operating systems so there is no need for OS version check.
  55   PrefService* prefs = g_browser_process->local_state();
  56   if (base::win::IsMetroProcess()) {
  57     prefs->SetString(prefs::kRelaunchMode,
  58                      upgrade_util::kRelaunchModeDesktop);
  59   } else {
  60     prefs->SetString(prefs::kRelaunchMode,
  61                      upgrade_util::kRelaunchModeMetro);
  62   }
  63   AttemptRestart();
  64 }
  65
  66 #if defined(USE_AURA)
  67 void ActivateDesktopHelper(AshExecutionStatus ash_execution_status) {
  68   scoped_ptr<base::Environment> env(base::Environment::Create());
  69   std::string version_str;
  70
  71   // Get the version variable and remove it from the environment.
  72   if (!env->GetVar(chrome::kChromeVersionEnvVar, &version_str))
  73     version_str.clear();
  74
  75   base::FilePath exe_path;
  76   if (!PathService::Get(base::FILE_EXE, &exe_path))
  77     return;
  78
  79   base::FilePath path(exe_path.DirName());
  80
  81   // The relauncher is ordinarily in the version directory.  When running in a
  82   // build tree however (where CHROME_VERSION is not set in the environment)
  83   // look for it in Chrome's directory.
  84   if (!version_str.empty())
  85     path = path.AppendASCII(version_str);
  86
  87   path = path.Append(installer::kDelegateExecuteExe);
  88
  89   // Actually launching the process needs to happen in the metro viewer,
  90   // otherwise it won't automatically transition to desktop.  So we have
  91   // to send an IPC to the viewer to do the ShellExecute.
  92   aura::HandleActivateDesktop(path, ash_execution_status == ASH_TERMINATE);
  93 }
  94 #endif
  95
  96 void AttemptRestartToDesktopMode() {
  97   PrefService* prefs = g_browser_process->local_state();
  98   prefs->SetString(prefs::kRelaunchMode,
  99                    upgrade_util::kRelaunchModeDesktop);
 100
 101   AttemptRestart();
 102 }
 103
 104 void AttemptRestartToMetroMode() {
 105   PrefService* prefs = g_browser_process->local_state();
 106   prefs->SetString(prefs::kRelaunchMode,
 107                    upgrade_util::kRelaunchModeMetro);
 108   AttemptRestart();
 109 }
 110
 111 }  // namespace chrome