chrome/browser/ui/startup/default_browser_prompt.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/startup/default_browser_prompt.h"
   6
   7 #include "base/memory/weak_ptr.h"
   8 #include "base/message_loop/message_loop.h"
   9 #include "base/metrics/histogram.h"
  10 #include "base/prefs/pref_registry_simple.h"
  11 #include "base/prefs/pref_service.h"
  12 #include "base/version.h"
  13 #include "chrome/browser/browser_process.h"
  14 #include "chrome/browser/first_run/first_run.h"
  15 #include "chrome/browser/infobars/confirm_infobar_delegate.h"
  16 #include "chrome/browser/infobars/infobar.h"
  17 #include "chrome/browser/infobars/infobar_service.h"
  18 #include "chrome/browser/profiles/profile.h"
  19 #include "chrome/browser/shell_integration.h"
  20 #include "chrome/browser/ui/browser.h"
  21 #include "chrome/browser/ui/browser_finder.h"
  22 #include "chrome/browser/ui/tabs/tab_strip_model.h"
  23 #include "chrome/common/chrome_version_info.h"
  24 #include "chrome/common/pref_names.h"
  25 #include "chrome/installer/util/master_preferences.h"
  26 #include "chrome/installer/util/master_preferences_constants.h"
  27 #include "content/public/browser/browser_thread.h"
  28 #include "content/public/browser/navigation_details.h"
  29 #include "content/public/browser/web_contents.h"
  30 #include "grit/chromium_strings.h"
  31 #include "grit/generated_resources.h"
  32 #include "grit/theme_resources.h"
  33 #include "ui/base/l10n/l10n_util.h"
  34
  35
  36 namespace {
  37
  38 // Calls the appropriate function for setting Chrome as the default browser.
  39 // This requires IO access (registry) and may result in interaction with a
  40 // modal system UI.
  41 void SetChromeAsDefaultBrowser(bool interactive_flow, PrefService* prefs) {
  42   if (interactive_flow) {
  43     UMA_HISTOGRAM_COUNTS("DefaultBrowserWarning.SetAsDefaultUI", 1);
  44     if (!ShellIntegration::SetAsDefaultBrowserInteractive()) {
  45       UMA_HISTOGRAM_COUNTS("DefaultBrowserWarning.SetAsDefaultUIFailed", 1);
  46     } else if (ShellIntegration::GetDefaultBrowser() ==
  47                ShellIntegration::NOT_DEFAULT) {
  48       // If the interaction succeeded but we are still not the default browser
  49       // it likely means the user simply selected another browser from the
  50       // panel. We will respect this choice and write it down as 'no, thanks'.
  51       UMA_HISTOGRAM_COUNTS("DefaultBrowserWarning.DontSetAsDefault", 1);
  52     }
  53   } else {
  54     UMA_HISTOGRAM_COUNTS("DefaultBrowserWarning.SetAsDefault", 1);
  55     ShellIntegration::SetAsDefaultBrowser();
  56   }
  57 }
  58
  59 // The delegate for the infobar shown when Chrome is not the default browser.
  60 class DefaultBrowserInfoBarDelegate : public ConfirmInfoBarDelegate {
  61  public:
  62   // Creates a default browser infobar and delegate and adds the infobar to
  63   // |infobar_service|.
  64   static void Create(InfoBarService* infobar_service,
  65                      PrefService* prefs,
  66                      bool interactive_flow_required);
  67
  68  private:
  69   DefaultBrowserInfoBarDelegate(PrefService* prefs,
  70                                 bool interactive_flow_required);
  71   virtual ~DefaultBrowserInfoBarDelegate();
  72
  73   void AllowExpiry() { should_expire_ = true; }
  74
  75   // ConfirmInfoBarDelegate:
  76   virtual int GetIconID() const OVERRIDE;
  77   virtual base::string16 GetMessageText() const OVERRIDE;
  78   virtual base::string16 GetButtonLabel(InfoBarButton button) const OVERRIDE;
  79   virtual bool NeedElevation(InfoBarButton button) const OVERRIDE;
  80   virtual bool Accept() OVERRIDE;
  81   virtual bool Cancel() OVERRIDE;
  82   virtual bool ShouldExpireInternal(
  83       const content::LoadCommittedDetails& details) const OVERRIDE;
  84
  85   // The prefs to use.
  86   PrefService* prefs_;
  87
  88   // Whether the user clicked one of the buttons.
  89   bool action_taken_;
  90
  91   // Whether the info-bar should be dismissed on the next navigation.
  92   bool should_expire_;
  93
  94   // Whether changing the default application will require entering the
  95   // modal-UI flow.
  96   const bool interactive_flow_required_;
  97
  98   // Used to delay the expiration of the info-bar.
  99   base::WeakPtrFactory<DefaultBrowserInfoBarDelegate> weak_factory_;
 100
 101   DISALLOW_COPY_AND_ASSIGN(DefaultBrowserInfoBarDelegate);
 102 };
 103
 104 // static
 105 void DefaultBrowserInfoBarDelegate::Create(InfoBarService* infobar_service,
 106                                            PrefService* prefs,
 107                                            bool interactive_flow_required) {
 108   infobar_service->AddInfoBar(ConfirmInfoBarDelegate::CreateInfoBar(
 109       scoped_ptr<ConfirmInfoBarDelegate>(new DefaultBrowserInfoBarDelegate(
 110           prefs, interactive_flow_required))));
 111 }
 112
 113 DefaultBrowserInfoBarDelegate::DefaultBrowserInfoBarDelegate(
 114     PrefService* prefs,
 115     bool interactive_flow_required)
 116     : ConfirmInfoBarDelegate(),
 117       prefs_(prefs),
 118       action_taken_(false),
 119       should_expire_(false),
 120       interactive_flow_required_(interactive_flow_required),
 121       weak_factory_(this) {
 122   // We want the info-bar to stick-around for few seconds and then be hidden
 123   // on the next navigation after that.
 124   base::MessageLoop::current()->PostDelayedTask(
 125       FROM_HERE,
 126       base::Bind(&DefaultBrowserInfoBarDelegate::AllowExpiry,
 127                  weak_factory_.GetWeakPtr()),
 128       base::TimeDelta::FromSeconds(8));
 129 }
 130
 131 DefaultBrowserInfoBarDelegate::~DefaultBrowserInfoBarDelegate() {
 132   if (!action_taken_)
 133     UMA_HISTOGRAM_COUNTS("DefaultBrowserWarning.Ignored", 1);
 134 }
 135
 136 int DefaultBrowserInfoBarDelegate::GetIconID() const {
 137   return IDR_PRODUCT_LOGO_32;
 138 }
 139
 140 base::string16 DefaultBrowserInfoBarDelegate::GetMessageText() const {
 141   return l10n_util::GetStringUTF16(IDS_DEFAULT_BROWSER_INFOBAR_SHORT_TEXT);
 142 }
 143
 144 base::string16 DefaultBrowserInfoBarDelegate::GetButtonLabel(
 145     InfoBarButton button) const {
 146   return l10n_util::GetStringUTF16((button == BUTTON_OK) ?
 147       IDS_SET_AS_DEFAULT_INFOBAR_BUTTON_LABEL :
 148       IDS_DONT_ASK_AGAIN_INFOBAR_BUTTON_LABEL);
 149 }
 150
 151 bool DefaultBrowserInfoBarDelegate::NeedElevation(InfoBarButton button) const {
 152   return button == BUTTON_OK;
 153 }
 154
 155 bool DefaultBrowserInfoBarDelegate::Accept() {
 156   action_taken_ = true;
 157   content::BrowserThread::PostTask(
 158       content::BrowserThread::FILE, FROM_HERE,
 159       base::Bind(&SetChromeAsDefaultBrowser, interactive_flow_required_,
 160                  prefs_));
 161
 162   return true;
 163 }
 164
 165 bool DefaultBrowserInfoBarDelegate::Cancel() {
 166   action_taken_ = true;
 167   UMA_HISTOGRAM_COUNTS("DefaultBrowserWarning.DontSetAsDefault", 1);
 168   // User clicked "Don't ask me again", remember that.
 169   prefs_->SetBoolean(prefs::kCheckDefaultBrowser, false);
 170   return true;
 171 }
 172
 173 bool DefaultBrowserInfoBarDelegate::ShouldExpireInternal(
 174     const content::LoadCommittedDetails& details) const {
 175   return should_expire_;
 176 }
 177
 178 void NotifyNotDefaultBrowserCallback(chrome::HostDesktopType desktop_type) {
 179   Browser* browser = chrome::FindLastActiveWithHostDesktopType(desktop_type);
 180   if (!browser)
 181     return;  // Reached during ui tests.
 182
 183   // In ChromeBot tests, there might be a race. This line appears to get
 184   // called during shutdown and |tab| can be NULL.
 185   content::WebContents* web_contents =
 186       browser->tab_strip_model()->GetActiveWebContents();
 187   if (!web_contents)
 188     return;
 189
 190   DefaultBrowserInfoBarDelegate::Create(
 191       InfoBarService::FromWebContents(web_contents),
 192       Profile::FromBrowserContext(
 193           web_contents->GetBrowserContext())->GetPrefs(),
 194       (ShellIntegration::CanSetAsDefaultBrowser() ==
 195           ShellIntegration::SET_DEFAULT_INTERACTIVE));
 196 }
 197
 198 void CheckDefaultBrowserCallback(chrome::HostDesktopType desktop_type) {
 199   if (ShellIntegration::GetDefaultBrowser() == ShellIntegration::NOT_DEFAULT) {
 200     ShellIntegration::DefaultWebClientSetPermission default_change_mode =
 201         ShellIntegration::CanSetAsDefaultBrowser();
 202
 203     if (default_change_mode != ShellIntegration::SET_DEFAULT_NOT_ALLOWED) {
 204       content::BrowserThread::PostTask(
 205           content::BrowserThread::UI, FROM_HERE,
 206           base::Bind(&NotifyNotDefaultBrowserCallback, desktop_type));
 207     }
 208   }
 209 }
 210
 211 }  // namespace
 212
 213 namespace chrome {
 214
 215 void RegisterDefaultBrowserPromptPrefs(PrefRegistrySimple* registry) {
 216   registry->RegisterStringPref(
 217       prefs::kBrowserSuppressDefaultBrowserPrompt, std::string());
 218 }
 219
 220 void ShowDefaultBrowserPrompt(Profile* profile, HostDesktopType desktop_type) {
 221   // We do not check if we are the default browser if:
 222   // - The user said "don't ask me again" on the infobar earlier.
 223   // - There is a policy in control of this setting.
 224   // - The "suppress_default_browser_prompt_for_version" master preference is
 225   //     set to the current version.
 226   if (!profile->GetPrefs()->GetBoolean(prefs::kCheckDefaultBrowser))
 227     return;
 228
 229   if (g_browser_process->local_state()->IsManagedPreference(
 230       prefs::kDefaultBrowserSettingEnabled)) {
 231     if (g_browser_process->local_state()->GetBoolean(
 232         prefs::kDefaultBrowserSettingEnabled)) {
 233       content::BrowserThread::PostTask(
 234           content::BrowserThread::FILE, FROM_HERE,
 235           base::Bind(
 236               base::IgnoreResult(&ShellIntegration::SetAsDefaultBrowser)));
 237     } else {
 238       // TODO(pastarmovj): We can't really do anything meaningful here yet but
 239       // just prevent showing the infobar.
 240     }
 241     return;
 242   }
 243
 244   const std::string disable_version_string =
 245       g_browser_process->local_state()->GetString(
 246           prefs::kBrowserSuppressDefaultBrowserPrompt);
 247   const Version disable_version(disable_version_string);
 248   DCHECK(disable_version_string.empty() || disable_version.IsValid());
 249   if (disable_version.IsValid()) {
 250     const chrome::VersionInfo version_info;
 251     if (disable_version.Equals(Version(version_info.Version())))
 252       return;
 253   }
 254
 255   content::BrowserThread::PostTask(
 256       content::BrowserThread::FILE, FROM_HERE,
 257       base::Bind(&CheckDefaultBrowserCallback, desktop_type));
 258
 259 }
 260
 261 #if !defined(OS_WIN)
 262 bool ShowFirstRunDefaultBrowserPrompt(Profile* profile) {
 263   return false;
 264 }
 265 #endif
 266
 267 }  // namespace chrome