chrome/browser/ui/startup/default_browser_prompt_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/ui/startup/default_browser_prompt.h"
   6
   7 #include "base/prefs/pref_service.h"
   8 #include "chrome/browser/profiles/profile.h"
   9 #include "chrome/browser/shell_integration.h"
  10 #include "chrome/browser/ui/browser.h"
  11 #include "chrome/browser/ui/browser_finder.h"
  12 #include "chrome/browser/ui/webui/set_as_default_browser_ui.h"
  13 #include "components/startup_metric_utils/startup_metric_utils.h"
  14 #include "content/public/browser/browser_thread.h"
  15 #include "content/public/browser/notification_service.h"
  16 #include "content/public/browser/notification_types.h"
  17
  18 using content::BrowserThread;
  19
  20 namespace {
  21
  22 // Show the page prompting the user to make Chrome the default browser on
  23 // Windows 8 (which means becoming "the browser" in Metro mode). The page
  24 // will be shown at the first appropriate opportunity. It can be placed in
  25 // a tab or in a dialog, depending on other settings.
  26 class SetMetroBrowserFlowLauncher : public content::NotificationObserver {
  27  public:
  28   static void LaunchSoon(Profile* profile) {
  29     // The instance will manage its own lifetime.
  30     new SetMetroBrowserFlowLauncher(profile);
  31   }
  32
  33  private:
  34   explicit SetMetroBrowserFlowLauncher(Profile* profile)
  35       : profile_(profile) {
  36     registrar_.Add(this, content::NOTIFICATION_LOAD_COMPLETED_MAIN_FRAME,
  37                    content::NotificationService::AllSources());
  38   }
  39
  40   // content::NotificationObserver override:
  41   void Observe(int type,
  42                const content::NotificationSource& source,
  43                const content::NotificationDetails& details) override;
  44
  45   content::NotificationRegistrar registrar_;
  46   Profile* profile_;
  47
  48   DISALLOW_COPY_AND_ASSIGN(SetMetroBrowserFlowLauncher);
  49 };
  50
  51 void SetMetroBrowserFlowLauncher::Observe(
  52     int type,
  53     const content::NotificationSource& source,
  54     const content::NotificationDetails& details) {
  55   DCHECK_EQ(type, content::NOTIFICATION_LOAD_COMPLETED_MAIN_FRAME);
  56   Browser* browser = chrome::FindBrowserWithWebContents(
  57       content::Source<content::WebContents>(source).ptr());
  58
  59   if (!browser || !browser->is_type_tabbed())
  60     return;
  61
  62   // Unregister and delete.
  63   registrar_.RemoveAll();
  64   SetAsDefaultBrowserUI::Show(profile_, browser);
  65   delete this;
  66 }
  67
  68 }  // namespace
  69
  70 namespace chrome {
  71
  72 bool ShowFirstRunDefaultBrowserPrompt(Profile* profile) {
  73   // If the only available mode of setting the default browser requires
  74   // user interaction, it means this couldn't have been done yet. Therefore,
  75   // we launch the dialog and inform the caller of it.
  76   bool show_status =
  77       (ShellIntegration::CanSetAsDefaultBrowser() ==
  78        ShellIntegration::SET_DEFAULT_INTERACTIVE) &&
  79       (ShellIntegration::GetDefaultBrowser() == ShellIntegration::NOT_DEFAULT);
  80
  81   if (show_status) {
  82     startup_metric_utils::SetNonBrowserUIDisplayed();
  83     SetMetroBrowserFlowLauncher::LaunchSoon(profile);
  84   }
  85
  86   return show_status;
  87 }
  88
  89 }  // namespace chrome