chrome/browser/ui/browser_list.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/ui/browser_list.h"
   6
   7 #include <algorithm>
   8
   9 #include "base/logging.h"
  10 #include "chrome/browser/browser_process.h"
  11 #include "chrome/browser/browser_shutdown.h"
  12 #include "chrome/browser/chrome_notification_types.h"
  13 #include "chrome/browser/lifetime/application_lifetime.h"
  14 #include "chrome/browser/profiles/profile.h"
  15 #include "chrome/browser/ui/browser.h"
  16 #include "chrome/browser/ui/browser_finder.h"
  17 #include "chrome/browser/ui/browser_iterator.h"
  18 #include "chrome/browser/ui/browser_list_observer.h"
  19 #include "chrome/browser/ui/browser_window.h"
  20 #include "chrome/browser/ui/host_desktop.h"
  21 #include "content/public/browser/notification_service.h"
  22 #include "content/public/browser/user_metrics.h"
  23
  24 #if defined(OS_CHROMEOS)
  25 #include "chrome/browser/chromeos/login/user_manager.h"
  26 #endif
  27
  28 using base::UserMetricsAction;
  29 using content::WebContents;
  30
  31 // static
  32 base::LazyInstance<ObserverList<chrome::BrowserListObserver> >::Leaky
  33     BrowserList::observers_ = LAZY_INSTANCE_INITIALIZER;
  34
  35 // static
  36 BrowserList* BrowserList::native_instance_ = NULL;
  37 BrowserList* BrowserList::ash_instance_ = NULL;
  38
  39 ////////////////////////////////////////////////////////////////////////////////
  40 // BrowserList, public:
  41
  42 Browser* BrowserList::GetLastActive() const {
  43   if (!last_active_browsers_.empty())
  44     return *(last_active_browsers_.rbegin());
  45   return NULL;
  46 }
  47
  48 // static
  49 BrowserList* BrowserList::GetInstance(chrome::HostDesktopType type) {
  50   BrowserList** list = NULL;
  51   if (type == chrome::HOST_DESKTOP_TYPE_NATIVE)
  52     list = &native_instance_;
  53   else if (type == chrome::HOST_DESKTOP_TYPE_ASH)
  54     list = &ash_instance_;
  55   else
  56     NOTREACHED();
  57   if (!*list)
  58     *list = new BrowserList;
  59   return *list;
  60 }
  61
  62 // static
  63 void BrowserList::AddBrowser(Browser* browser) {
  64   DCHECK(browser);
  65   // Push |browser| on the appropriate list instance.
  66   BrowserList* browser_list = GetInstance(browser->host_desktop_type());
  67   browser_list->browsers_.push_back(browser);
  68
  69   g_browser_process->AddRefModule();
  70
  71   content::NotificationService::current()->Notify(
  72       chrome::NOTIFICATION_BROWSER_OPENED,
  73       content::Source<Browser>(browser),
  74       content::NotificationService::NoDetails());
  75
  76   FOR_EACH_OBSERVER(chrome::BrowserListObserver, observers_.Get(),
  77                     OnBrowserAdded(browser));
  78 }
  79
  80 // static
  81 void BrowserList::RemoveBrowser(Browser* browser) {
  82   // Remove |browser| from the appropriate list instance.
  83   BrowserList* browser_list = GetInstance(browser->host_desktop_type());
  84   RemoveBrowserFrom(browser, &browser_list->last_active_browsers_);
  85
  86   content::NotificationService::current()->Notify(
  87       chrome::NOTIFICATION_BROWSER_CLOSED,
  88       content::Source<Browser>(browser),
  89       content::NotificationService::NoDetails());
  90
  91   RemoveBrowserFrom(browser, &browser_list->browsers_);
  92
  93   FOR_EACH_OBSERVER(chrome::BrowserListObserver, observers_.Get(),
  94                     OnBrowserRemoved(browser));
  95
  96   g_browser_process->ReleaseModule();
  97
  98   // If we're exiting, send out the APP_TERMINATING notification to allow other
  99   // modules to shut themselves down.
 100   if (chrome::GetTotalBrowserCount() == 0 &&
 101       (browser_shutdown::IsTryingToQuit() ||
 102        g_browser_process->IsShuttingDown())) {
 103     // Last browser has just closed, and this is a user-initiated quit or there
 104     // is no module keeping the app alive, so send out our notification. No need
 105     // to call ProfileManager::ShutdownSessionServices() as part of the
 106     // shutdown, because Browser::WindowClosing() already makes sure that the
 107     // SessionService is created and notified.
 108     chrome::NotifyAppTerminating();
 109     chrome::OnAppExiting();
 110   }
 111 }
 112
 113 // static
 114 void BrowserList::AddObserver(chrome::BrowserListObserver* observer) {
 115   observers_.Get().AddObserver(observer);
 116 }
 117
 118 // static
 119 void BrowserList::RemoveObserver(chrome::BrowserListObserver* observer) {
 120   observers_.Get().RemoveObserver(observer);
 121 }
 122
 123 void BrowserList::CloseAllBrowsersWithProfile(Profile* profile) {
 124   BrowserVector browsers_to_close;
 125   for (chrome::BrowserIterator it; !it.done(); it.Next()) {
 126     if (it->profile()->GetOriginalProfile() == profile->GetOriginalProfile())
 127       browsers_to_close.push_back(*it);
 128   }
 129
 130   for (BrowserVector::const_iterator it = browsers_to_close.begin();
 131        it != browsers_to_close.end(); ++it) {
 132     (*it)->window()->Close();
 133   }
 134 }
 135
 136 // static
 137 void BrowserList::SetLastActive(Browser* browser) {
 138   content::RecordAction(UserMetricsAction("ActiveBrowserChanged"));
 139   BrowserList* browser_list = GetInstance(browser->host_desktop_type());
 140
 141   RemoveBrowserFrom(browser, &browser_list->last_active_browsers_);
 142   browser_list->last_active_browsers_.push_back(browser);
 143
 144   FOR_EACH_OBSERVER(chrome::BrowserListObserver, observers_.Get(),
 145                     OnBrowserSetLastActive(browser));
 146 }
 147
 148 // static
 149 bool BrowserList::IsOffTheRecordSessionActive() {
 150   for (chrome::BrowserIterator it; !it.done(); it.Next()) {
 151     if (it->profile()->IsOffTheRecord())
 152       return true;
 153   }
 154   return false;
 155 }
 156
 157 // static
 158 bool BrowserList::IsOffTheRecordSessionActiveForProfile(Profile* profile) {
 159   #if defined(OS_CHROMEOS)
 160   // In ChromeOS, we assume that the default profile is always valid, so if
 161   // we are in guest mode, keep the OTR profile active so it won't be deleted.
 162   if (chromeos::UserManager::Get()->IsLoggedInAsGuest())
 163     return true;
 164 #endif
 165   for (chrome::BrowserIterator it; !it.done(); it.Next()) {
 166     if (it->profile()->IsSameProfile(profile) &&
 167         it->profile()->IsOffTheRecord()) {
 168       return true;
 169     }
 170   }
 171   return false;
 172 }
 173
 174 ////////////////////////////////////////////////////////////////////////////////
 175 // BrowserList, private:
 176
 177 BrowserList::BrowserList() {
 178 }
 179
 180 BrowserList::~BrowserList() {
 181 }
 182
 183 // static
 184 void BrowserList::RemoveBrowserFrom(Browser* browser,
 185                                     BrowserVector* browser_list) {
 186   BrowserVector::iterator remove_browser =
 187       std::find(browser_list->begin(), browser_list->end(), browser);
 188   if (remove_browser != browser_list->end())
 189     browser_list->erase(remove_browser);
 190 }