chrome/browser/ui/sync/one_click_signin_sync_observer.cc

   1 // Copyright 2014 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/sync/one_click_signin_sync_observer.h"
   6
   7 #include "base/bind.h"
   8 #include "base/location.h"
   9 #include "base/single_thread_task_runner.h"
  10 #include "base/thread_task_runner_handle.h"
  11 #include "chrome/browser/profiles/profile.h"
  12 #include "chrome/browser/signin/signin_promo.h"
  13 #include "chrome/browser/sync/profile_sync_service.h"
  14 #include "chrome/browser/sync/profile_sync_service_factory.h"
  15 #include "content/public/browser/web_contents.h"
  16 #include "content/public/browser/web_contents_delegate.h"
  17
  18 namespace {
  19
  20 void CloseTab(content::WebContents* tab) {
  21   content::WebContentsDelegate* tab_delegate = tab->GetDelegate();
  22   if (tab_delegate)
  23     tab_delegate->CloseContents(tab);
  24 }
  25
  26 }  // namespace
  27
  28
  29 OneClickSigninSyncObserver::OneClickSigninSyncObserver(
  30     content::WebContents* web_contents,
  31     const GURL& continue_url)
  32     : content::WebContentsObserver(web_contents),
  33       continue_url_(continue_url),
  34       weak_ptr_factory_(this) {
  35   DCHECK(!continue_url_.is_empty());
  36
  37   ProfileSyncService* sync_service = GetSyncService(web_contents);
  38   if (sync_service) {
  39     sync_service->AddObserver(this);
  40   } else {
  41     LoadContinueUrl();
  42     // Post a task rather than calling |delete this| here, so that the
  43     // destructor is not called directly from the constructor. Note that it's
  44     // important to pass a weak pointer rather than base::Unretained(this)
  45     // because it's possible for e.g. WebContentsDestroyed() to be called
  46     // before this task has a chance to run.
  47     base::ThreadTaskRunnerHandle::Get()->PostTask(
  48         FROM_HERE, base::Bind(&OneClickSigninSyncObserver::DeleteObserver,
  49                               weak_ptr_factory_.GetWeakPtr()));
  50   }
  51 }
  52
  53 OneClickSigninSyncObserver::~OneClickSigninSyncObserver() {}
  54
  55 void OneClickSigninSyncObserver::WebContentsDestroyed() {
  56   ProfileSyncService* sync_service = GetSyncService(web_contents());
  57   if (sync_service)
  58     sync_service->RemoveObserver(this);
  59
  60   delete this;
  61 }
  62
  63 void OneClickSigninSyncObserver::OnStateChanged() {
  64   ProfileSyncService* sync_service = GetSyncService(web_contents());
  65
  66   // At this point, the sign-in process is complete, and control has been handed
  67   // back to the sync engine. Close the gaia sign in tab if the |continue_url_|
  68   // contains the |auto_close| parameter. Otherwise, wait for sync setup to
  69   // complete and then navigate to the |continue_url_|.
  70   if (signin::IsAutoCloseEnabledInURL(continue_url_)) {
  71     // Close the Gaia sign-in tab via a task to make sure we aren't in the
  72     // middle of any WebUI handler code.
  73     base::ThreadTaskRunnerHandle::Get()->PostTask(
  74         FROM_HERE, base::Bind(&CloseTab, base::Unretained(web_contents())));
  75   } else {
  76     if (sync_service->IsFirstSetupInProgress()) {
  77       // Sync setup has not completed yet. Wait for it to complete.
  78       return;
  79     }
  80
  81     if (sync_service->IsSyncActive() &&
  82         signin::GetSourceForPromoURL(continue_url_)
  83             != signin_metrics::SOURCE_SETTINGS) {
  84       // TODO(isherman): Having multiple settings pages open can cause issues
  85       // redirecting after Sync is set up: http://crbug.com/355885
  86       LoadContinueUrl();
  87     }
  88   }
  89
  90   sync_service->RemoveObserver(this);
  91   delete this;
  92 }
  93
  94 void OneClickSigninSyncObserver::LoadContinueUrl() {
  95   web_contents()->GetController().LoadURL(
  96       continue_url_,
  97       content::Referrer(),
  98       ui::PAGE_TRANSITION_AUTO_TOPLEVEL,
  99       std::string());
 100 }
 101
 102 ProfileSyncService* OneClickSigninSyncObserver::GetSyncService(
 103     content::WebContents* web_contents) {
 104   Profile* profile =
 105       Profile::FromBrowserContext(web_contents->GetBrowserContext());
 106   return ProfileSyncServiceFactory::GetForProfile(profile);
 107 }
 108
 109 // static
 110 void OneClickSigninSyncObserver::DeleteObserver(
 111     base::WeakPtr<OneClickSigninSyncObserver> observer) {
 112   if (observer)
 113     delete observer.get();
 114 }