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      1 // Copyright (c) 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 "chrome/browser/browser_process_platform_part_aurawin.h"
      6 
      7 #include "base/command_line.h"
      8 #include "base/logging.h"
      9 #include "base/prefs/pref_service.h"
     10 #include "base/process/kill.h"
     11 #include "base/win/windows_version.h"
     12 #include "chrome/browser/browser_process.h"
     13 #include "chrome/browser/chrome_notification_types.h"
     14 #include "chrome/browser/first_run/upgrade_util.h"
     15 #include "chrome/browser/first_run/upgrade_util_win.h"
     16 #include "chrome/browser/lifetime/application_lifetime.h"
     17 #include "chrome/browser/metro_viewer/chrome_metro_viewer_process_host_aurawin.h"
     18 #include "chrome/common/chrome_switches.h"
     19 #include "chrome/common/pref_names.h"
     20 #include "content/public/browser/notification_service.h"
     21 
     22 #include "ui/aura/remote_window_tree_host_win.h"
     23 
     24 BrowserProcessPlatformPart::BrowserProcessPlatformPart() {
     25   if (base::win::GetVersion() >= base::win::VERSION_WIN8) {
     26     // Tell metro viewer to close when we are shutting down.
     27     registrar_.Add(this, chrome::NOTIFICATION_APP_TERMINATING,
     28                    content::NotificationService::AllSources());
     29   }
     30 }
     31 
     32 BrowserProcessPlatformPart::~BrowserProcessPlatformPart() {
     33 }
     34 
     35 void BrowserProcessPlatformPart::OnMetroViewerProcessTerminated() {
     36   metro_viewer_process_host_.reset(NULL);
     37 }
     38 
     39 void BrowserProcessPlatformPart::PlatformSpecificCommandLineProcessing(
     40     const CommandLine& command_line) {
     41   // Check for Windows 8 specific commandlines requesting that this process
     42   // either connect to an existing viewer or launch a new viewer and
     43   // synchronously wait for it to connect.
     44 
     45   bool launch = command_line.HasSwitch(switches::kViewerLaunchViaAppId);
     46   bool connect = (launch ||
     47                   (command_line.HasSwitch(switches::kViewerConnect) &&
     48                    !metro_viewer_process_host_.get()));
     49   if (!connect)
     50     return;
     51   // Create a host to connect to the Metro viewer process over IPC.
     52   metro_viewer_process_host_.reset(new ChromeMetroViewerProcessHost());
     53   if (launch) {
     54     CHECK(metro_viewer_process_host_->LaunchViewerAndWaitForConnection(
     55         command_line.GetSwitchValueNative(
     56             switches::kViewerLaunchViaAppId)));
     57   }
     58 
     59 }
     60 
     61 void BrowserProcessPlatformPart::Observe(
     62     int type,
     63     const content::NotificationSource& source,
     64     const content::NotificationDetails& details) {
     65 
     66   DCHECK(type == chrome::NOTIFICATION_APP_TERMINATING);
     67   PrefService* pref_service = g_browser_process->local_state();
     68   bool is_relaunch = pref_service->GetBoolean(prefs::kWasRestarted);
     69   if (is_relaunch) {
     70     upgrade_util::RelaunchMode mode =
     71         upgrade_util::RelaunchModeStringToEnum(
     72             pref_service->GetString(prefs::kRelaunchMode));
     73     if (metro_viewer_process_host_.get()) {
     74       if (mode == upgrade_util::RELAUNCH_MODE_DESKTOP) {
     75         // Metro -> Desktop
     76         chrome::ActivateDesktopHelper(chrome::ASH_TERMINATE);
     77       } else {
     78         // Metro -> Metro
     79         ChromeMetroViewerProcessHost::HandleMetroExit();
     80       }
     81     }
     82   }
     83 }
     84