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/location.h"
   8 #include "base/memory/weak_ptr.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/single_thread_task_runner.h"
  13 #include "base/thread_task_runner_handle.h"
  14 #include "base/version.h"
  15 #include "chrome/browser/browser_process.h"
  16 #include "chrome/browser/first_run/first_run.h"
  17 #include "chrome/browser/infobars/infobar_service.h"
  18 #include "chrome/browser/profiles/profile.h"
  19 #include "chrome/browser/profiles/profile_manager.h"
  20 #include "chrome/browser/shell_integration.h"
  21 #include "chrome/browser/ui/browser.h"
  22 #include "chrome/browser/ui/browser_finder.h"
  23 #include "chrome/browser/ui/tabs/tab_strip_model.h"
  24 #include "chrome/common/chrome_version_info.h"
  25 #include "chrome/common/pref_names.h"
  26 #include "chrome/grit/chromium_strings.h"
  27 #include "chrome/grit/generated_resources.h"
  28 #include "chrome/installer/util/master_preferences.h"
  29 #include "chrome/installer/util/master_preferences_constants.h"
  30 #include "components/infobars/core/confirm_infobar_delegate.h"
  31 #include "components/infobars/core/infobar.h"
  32 #include "content/public/browser/browser_thread.h"
  33 #include "content/public/browser/navigation_details.h"
  34 #include "content/public/browser/web_contents.h"
  35 #include "grit/theme_resources.h"
  36 #include "ui/base/l10n/l10n_util.h"
  37
  38
  39 namespace {
  40
  41 // Calls the appropriate function for setting Chrome as the default browser.
  42 // This requires IO access (registry) and may result in interaction with a
  43 // modal system UI.
  44 void SetChromeAsDefaultBrowser(bool interactive_flow, PrefService* prefs) {
  45   if (interactive_flow) {
  46     UMA_HISTOGRAM_BOOLEAN("DefaultBrowserWarning.SetAsDefaultUI", true);
  47     if (!ShellIntegration::SetAsDefaultBrowserInteractive()) {
  48       UMA_HISTOGRAM_BOOLEAN("DefaultBrowserWarning.SetAsDefaultUIFailed", true);
  49     } else if (ShellIntegration::GetDefaultBrowser() ==
  50                ShellIntegration::NOT_DEFAULT) {
  51       // If the interaction succeeded but we are still not the default browser
  52       // it likely means the user simply selected another browser from the
  53       // panel. We will respect this choice and write it down as 'no, thanks'.
  54       UMA_HISTOGRAM_BOOLEAN("DefaultBrowserWarning.DontSetAsDefault", true);
  55     }
  56   } else {
  57     UMA_HISTOGRAM_BOOLEAN("DefaultBrowserWarning.SetAsDefault", true);
  58     ShellIntegration::SetAsDefaultBrowser();
  59   }
  60 }
  61
  62 // The delegate for the infobar shown when Chrome is not the default browser.
  63 class DefaultBrowserInfoBarDelegate : public ConfirmInfoBarDelegate {
  64  public:
  65   // Creates a default browser infobar and delegate and adds the infobar to
  66   // |infobar_service|.
  67   static void Create(InfoBarService* infobar_service,
  68                      PrefService* prefs,
  69                      bool interactive_flow_required);
  70
  71  private:
  72   DefaultBrowserInfoBarDelegate(PrefService* prefs,
  73                                 bool interactive_flow_required);
  74   ~DefaultBrowserInfoBarDelegate() override;
  75
  76   void AllowExpiry() { should_expire_ = true; }
  77
  78   // ConfirmInfoBarDelegate:
  79   int GetIconID() const override;
  80   bool ShouldExpire(const NavigationDetails& details) const override;
  81   base::string16 GetMessageText() const override;
  82   base::string16 GetButtonLabel(InfoBarButton button) const override;
  83   bool OKButtonTriggersUACPrompt() const override;
  84   bool Accept() override;
  85   bool Cancel() override;
  86
  87   // The prefs to use.
  88   PrefService* prefs_;
  89
  90   // Whether the user clicked one of the buttons.
  91   bool action_taken_;
  92
  93   // Whether the info-bar should be dismissed on the next navigation.
  94   bool should_expire_;
  95
  96   // Whether changing the default application will require entering the
  97   // modal-UI flow.
  98   const bool interactive_flow_required_;
  99
 100   // Used to delay the expiration of the info-bar.
 101   base::WeakPtrFactory<DefaultBrowserInfoBarDelegate> weak_factory_;
 102
 103   DISALLOW_COPY_AND_ASSIGN(DefaultBrowserInfoBarDelegate);
 104 };
 105
 106 // static
 107 void DefaultBrowserInfoBarDelegate::Create(InfoBarService* infobar_service,
 108                                            PrefService* prefs,
 109                                            bool interactive_flow_required) {
 110   infobar_service->AddInfoBar(infobar_service->CreateConfirmInfoBar(
 111       scoped_ptr<ConfirmInfoBarDelegate>(new DefaultBrowserInfoBarDelegate(
 112           prefs, interactive_flow_required))));
 113 }
 114
 115 DefaultBrowserInfoBarDelegate::DefaultBrowserInfoBarDelegate(
 116     PrefService* prefs,
 117     bool interactive_flow_required)
 118     : ConfirmInfoBarDelegate(),
 119       prefs_(prefs),
 120       action_taken_(false),
 121       should_expire_(false),
 122       interactive_flow_required_(interactive_flow_required),
 123       weak_factory_(this) {
 124   // We want the info-bar to stick-around for few seconds and then be hidden
 125   // on the next navigation after that.
 126   base::ThreadTaskRunnerHandle::Get()->PostDelayedTask(
 127       FROM_HERE, base::Bind(&DefaultBrowserInfoBarDelegate::AllowExpiry,
 128                             weak_factory_.GetWeakPtr()),
 129       base::TimeDelta::FromSeconds(8));
 130 }
 131
 132 DefaultBrowserInfoBarDelegate::~DefaultBrowserInfoBarDelegate() {
 133   if (!action_taken_)
 134     UMA_HISTOGRAM_BOOLEAN("DefaultBrowserWarning.Ignored", true);
 135 }
 136
 137 int DefaultBrowserInfoBarDelegate::GetIconID() const {
 138   return IDR_PRODUCT_LOGO_32;
 139 }
 140
 141 bool DefaultBrowserInfoBarDelegate::ShouldExpire(
 142     const NavigationDetails& details) const {
 143   return should_expire_ && ConfirmInfoBarDelegate::ShouldExpire(details);
 144 }
 145
 146 base::string16 DefaultBrowserInfoBarDelegate::GetMessageText() const {
 147   return l10n_util::GetStringUTF16(IDS_DEFAULT_BROWSER_INFOBAR_SHORT_TEXT);
 148 }
 149
 150 base::string16 DefaultBrowserInfoBarDelegate::GetButtonLabel(
 151     InfoBarButton button) const {
 152   return l10n_util::GetStringUTF16((button == BUTTON_OK) ?
 153       IDS_SET_AS_DEFAULT_INFOBAR_BUTTON_LABEL :
 154       IDS_DONT_ASK_AGAIN_INFOBAR_BUTTON_LABEL);
 155 }
 156
 157 bool DefaultBrowserInfoBarDelegate::OKButtonTriggersUACPrompt() const {
 158   return true;
 159 }
 160
 161 bool DefaultBrowserInfoBarDelegate::Accept() {
 162   action_taken_ = true;
 163   content::BrowserThread::PostTask(
 164       content::BrowserThread::FILE, FROM_HERE,
 165       base::Bind(&SetChromeAsDefaultBrowser, interactive_flow_required_,
 166                  prefs_));
 167
 168   return true;
 169 }
 170
 171 bool DefaultBrowserInfoBarDelegate::Cancel() {
 172   action_taken_ = true;
 173   UMA_HISTOGRAM_BOOLEAN("DefaultBrowserWarning.DontSetAsDefault", true);
 174   // User clicked "Don't ask me again", remember that.
 175   prefs_->SetBoolean(prefs::kCheckDefaultBrowser, false);
 176   return true;
 177 }
 178
 179 void NotifyNotDefaultBrowserCallback(chrome::HostDesktopType desktop_type) {
 180   Browser* browser = chrome::FindLastActiveWithHostDesktopType(desktop_type);
 181   if (!browser)
 182     return;  // Reached during ui tests.
 183
 184   // In ChromeBot tests, there might be a race. This line appears to get
 185   // called during shutdown and |tab| can be NULL.
 186   content::WebContents* web_contents =
 187       browser->tab_strip_model()->GetActiveWebContents();
 188   if (!web_contents)
 189     return;
 190
 191   DefaultBrowserInfoBarDelegate::Create(
 192       InfoBarService::FromWebContents(web_contents),
 193       Profile::FromBrowserContext(
 194           web_contents->GetBrowserContext())->GetPrefs(),
 195       (ShellIntegration::CanSetAsDefaultBrowser() ==
 196           ShellIntegration::SET_DEFAULT_INTERACTIVE));
 197 }
 198
 199 void ResetCheckDefaultBrowserPrefOnUIThread(
 200     const base::FilePath& profile_path) {
 201   DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
 202   Profile* profile =
 203       g_browser_process->profile_manager()->GetProfileByPath(profile_path);
 204   if (profile)
 205     profile->GetPrefs()->SetBoolean(prefs::kCheckDefaultBrowser, true);
 206 }
 207
 208 void CheckDefaultBrowserOnFileThread(const base::FilePath& profile_path,
 209                                      bool show_prompt,
 210                                      chrome::HostDesktopType desktop_type) {
 211   DCHECK_CURRENTLY_ON(content::BrowserThread::FILE);
 212   ShellIntegration::DefaultWebClientState state =
 213       ShellIntegration::GetDefaultBrowser();
 214   if (state == ShellIntegration::IS_DEFAULT) {
 215     // Notify the user in the future if Chrome ceases to be the user's chosen
 216     // default browser.
 217     content::BrowserThread::PostTask(
 218         content::BrowserThread::UI, FROM_HERE,
 219         base::Bind(&ResetCheckDefaultBrowserPrefOnUIThread, profile_path));
 220   } else if (show_prompt && state == ShellIntegration::NOT_DEFAULT) {
 221     ShellIntegration::DefaultWebClientSetPermission default_change_mode =
 222         ShellIntegration::CanSetAsDefaultBrowser();
 223
 224     if (default_change_mode != ShellIntegration::SET_DEFAULT_NOT_ALLOWED) {
 225       content::BrowserThread::PostTask(
 226           content::BrowserThread::UI, FROM_HERE,
 227           base::Bind(&NotifyNotDefaultBrowserCallback, desktop_type));
 228     }
 229   }
 230 }
 231
 232 }  // namespace
 233
 234 namespace chrome {
 235
 236 void RegisterDefaultBrowserPromptPrefs(PrefRegistrySimple* registry) {
 237   registry->RegisterStringPref(
 238       prefs::kBrowserSuppressDefaultBrowserPrompt, std::string());
 239 }
 240
 241 void ShowDefaultBrowserPrompt(Profile* profile, HostDesktopType desktop_type) {
 242   // We do not check if we are the default browser if:
 243   // - There is a policy in control of this setting.
 244   // We check if we are the default browser but do not prompt if:
 245   // - The user said "don't ask me again" on the infobar earlier.
 246   // - The "suppress_default_browser_prompt_for_version" master preference is
 247   //     set to the current version.
 248   bool show_prompt =
 249       profile->GetPrefs()->GetBoolean(prefs::kCheckDefaultBrowser);
 250
 251   if (g_browser_process->local_state()->IsManagedPreference(
 252       prefs::kDefaultBrowserSettingEnabled)) {
 253     if (g_browser_process->local_state()->GetBoolean(
 254         prefs::kDefaultBrowserSettingEnabled)) {
 255       content::BrowserThread::PostTask(
 256           content::BrowserThread::FILE, FROM_HERE,
 257           base::Bind(
 258               base::IgnoreResult(&ShellIntegration::SetAsDefaultBrowser)));
 259     } else {
 260       // TODO(pastarmovj): We can't really do anything meaningful here yet but
 261       // just prevent showing the infobar.
 262     }
 263     return;
 264   }
 265
 266   if (show_prompt) {
 267     const std::string disable_version_string =
 268         g_browser_process->local_state()->GetString(
 269             prefs::kBrowserSuppressDefaultBrowserPrompt);
 270     const Version disable_version(disable_version_string);
 271     DCHECK(disable_version_string.empty() || disable_version.IsValid());
 272     if (disable_version.IsValid()) {
 273       const chrome::VersionInfo version_info;
 274       if (disable_version.Equals(Version(version_info.Version())))
 275         show_prompt = false;
 276     }
 277   }
 278
 279   content::BrowserThread::PostTask(
 280       content::BrowserThread::FILE, FROM_HERE,
 281       base::Bind(&CheckDefaultBrowserOnFileThread, profile->GetPath(),
 282                  show_prompt, desktop_type));
 283 }
 284
 285 #if !defined(OS_WIN)
 286 bool ShowFirstRunDefaultBrowserPrompt(Profile* profile) {
 287   return false;
 288 }
 289 #endif
 290
 291 }  // namespace chrome