src/chrome/browser/ui/sync/profile_signin_confirmation_helper.cc

   1 // Copyright 2013 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/profile_signin_confirmation_helper.h"
   6
   7 #include "base/bind.h"
   8 #include "base/memory/ref_counted.h"
   9 #include "base/prefs/pref_service.h"
  10 #include "base/strings/string16.h"
  11 #include "chrome/browser/bookmarks/bookmark_model_factory.h"
  12 #include "chrome/browser/common/cancelable_request.h"
  13 #include "chrome/browser/extensions/extension_service.h"
  14 #include "chrome/browser/history/history_backend.h"
  15 #include "chrome/browser/history/history_db_task.h"
  16 #include "chrome/browser/history/history_service.h"
  17 #include "chrome/browser/history/history_service_factory.h"
  18 #include "chrome/browser/history/history_types.h"
  19 #include "chrome/browser/profiles/profile.h"
  20 #include "chrome/common/extensions/extension_constants.h"
  21 #include "chrome/common/extensions/sync_helper.h"
  22 #include "components/bookmarks/browser/bookmark_model.h"
  23 #include "extensions/browser/extension_system.h"
  24 #include "extensions/common/extension.h"
  25 #include "extensions/common/extension_set.h"
  26 #include "ui/gfx/color_utils.h"
  27 #include "ui/native_theme/native_theme.h"
  28
  29 namespace {
  30
  31 const int kHistoryEntriesBeforeNewProfilePrompt = 10;
  32
  33 // Determines whether a profile has any typed URLs in its history.
  34 class HasTypedURLsTask : public history::HistoryDBTask {
  35  public:
  36   HasTypedURLsTask(const base::Callback<void(bool)>& cb)
  37       : has_typed_urls_(false), cb_(cb) {
  38   }
  39
  40   virtual bool RunOnDBThread(history::HistoryBackend* backend,
  41                              history::HistoryDatabase* db) OVERRIDE {
  42     history::URLRows rows;
  43     backend->GetAllTypedURLs(&rows);
  44     if (!rows.empty()) {
  45       DVLOG(1) << "ProfileSigninConfirmationHelper: profile contains "
  46                << rows.size() << " typed URLs";
  47       has_typed_urls_ = true;
  48     }
  49     return true;
  50   }
  51
  52   virtual void DoneRunOnMainThread() OVERRIDE {
  53     cb_.Run(has_typed_urls_);
  54   }
  55
  56  private:
  57   virtual ~HasTypedURLsTask() {}
  58   bool has_typed_urls_;
  59   base::Callback<void(bool)> cb_;
  60 };
  61
  62 bool HasBookmarks(Profile* profile) {
  63   BookmarkModel* bookmarks = BookmarkModelFactory::GetForProfile(profile);
  64   bool has_bookmarks = bookmarks && bookmarks->HasBookmarks();
  65   if (has_bookmarks)
  66     DVLOG(1) << "ProfileSigninConfirmationHelper: profile contains bookmarks";
  67   return has_bookmarks;
  68 }
  69
  70 // Helper functions for Chrome profile signin.
  71 class ProfileSigninConfirmationHelper
  72     : public base::RefCounted<ProfileSigninConfirmationHelper> {
  73  public:
  74   ProfileSigninConfirmationHelper(
  75       Profile* profile,
  76       const base::Callback<void(bool)>& return_result);
  77   void CheckHasHistory(int max_entries);
  78   void CheckHasTypedURLs();
  79   void set_pending_requests(int requests);
  80
  81  private:
  82   friend class base::RefCounted<ProfileSigninConfirmationHelper>;
  83
  84   ~ProfileSigninConfirmationHelper();
  85
  86   void OnHistoryQueryResults(size_t max_entries,
  87                              CancelableRequestProvider::Handle handle,
  88                              history::QueryResults* results);
  89   void ReturnResult(bool result);
  90
  91   // Weak pointer to the profile being signed-in.
  92   Profile* profile_;
  93
  94   // Used for async tasks.
  95   CancelableRequestConsumer request_consumer_;
  96
  97   // Keep track of how many async requests are pending.
  98   int pending_requests_;
  99
 100   // Indicates whether the result has already been returned to caller.
 101   bool result_returned_;
 102
 103   // Callback to pass the result back to the caller.
 104   const base::Callback<void(bool)> return_result_;
 105
 106   DISALLOW_COPY_AND_ASSIGN(ProfileSigninConfirmationHelper);
 107 };
 108
 109 ProfileSigninConfirmationHelper::ProfileSigninConfirmationHelper(
 110     Profile* profile,
 111     const base::Callback<void(bool)>& return_result)
 112     : profile_(profile),
 113       pending_requests_(0),
 114       result_returned_(false),
 115       return_result_(return_result) {
 116 }
 117
 118 ProfileSigninConfirmationHelper::~ProfileSigninConfirmationHelper() {
 119 }
 120
 121 void ProfileSigninConfirmationHelper::OnHistoryQueryResults(
 122     size_t max_entries,
 123     CancelableRequestProvider::Handle handle,
 124     history::QueryResults* results) {
 125   history::QueryResults owned_results;
 126   results->Swap(&owned_results);
 127   bool too_much_history = owned_results.size() >= max_entries;
 128   if (too_much_history) {
 129     DVLOG(1) << "ProfileSigninConfirmationHelper: profile contains "
 130              << owned_results.size() << " history entries";
 131   }
 132   ReturnResult(too_much_history);
 133 }
 134
 135 void ProfileSigninConfirmationHelper::CheckHasHistory(int max_entries) {
 136   HistoryService* service =
 137       HistoryServiceFactory::GetForProfileWithoutCreating(profile_);
 138   if (!service) {
 139     ReturnResult(false);
 140     return;
 141   }
 142   history::QueryOptions opts;
 143   opts.max_count = max_entries;
 144   service->QueryHistory(
 145       base::string16(), opts, &request_consumer_,
 146       base::Bind(&ProfileSigninConfirmationHelper::OnHistoryQueryResults,
 147                  this,
 148                  max_entries));
 149 }
 150
 151 void ProfileSigninConfirmationHelper::CheckHasTypedURLs() {
 152   HistoryService* service =
 153       HistoryServiceFactory::GetForProfileWithoutCreating(profile_);
 154   if (!service) {
 155     ReturnResult(false);
 156     return;
 157   }
 158   service->ScheduleDBTask(
 159       new HasTypedURLsTask(
 160           base::Bind(
 161               &ProfileSigninConfirmationHelper::ReturnResult,
 162               this)),
 163       &request_consumer_);
 164 }
 165
 166 void ProfileSigninConfirmationHelper::set_pending_requests(int requests) {
 167   pending_requests_ = requests;
 168 }
 169
 170 void ProfileSigninConfirmationHelper::ReturnResult(bool result) {
 171   // Pass |true| into the callback as soon as one of the tasks passes a
 172   // result of |true|, otherwise pass the last returned result.
 173   if (!result_returned_ && (--pending_requests_ == 0 || result)) {
 174     result_returned_ = true;
 175     request_consumer_.CancelAllRequests();
 176     return_result_.Run(result);
 177   }
 178 }
 179
 180 }  // namespace
 181
 182 namespace ui {
 183
 184 SkColor GetSigninConfirmationPromptBarColor(SkAlpha alpha) {
 185   static const SkColor kBackgroundColor =
 186       ui::NativeTheme::instance()->GetSystemColor(
 187           ui::NativeTheme::kColorId_DialogBackground);
 188   return color_utils::BlendTowardOppositeLuminance(kBackgroundColor, alpha);
 189 }
 190
 191 bool HasBeenShutdown(Profile* profile) {
 192   bool has_been_shutdown = !profile->IsNewProfile();
 193   if (has_been_shutdown)
 194     DVLOG(1) << "ProfileSigninConfirmationHelper: profile is not new";
 195   return has_been_shutdown;
 196 }
 197
 198 bool HasSyncedExtensions(Profile* profile) {
 199   extensions::ExtensionSystem* system =
 200       extensions::ExtensionSystem::Get(profile);
 201   if (system && system->extension_service()) {
 202     const extensions::ExtensionSet* extensions =
 203         system->extension_service()->extensions();
 204     for (extensions::ExtensionSet::const_iterator iter = extensions->begin();
 205          iter != extensions->end(); ++iter) {
 206       // The webstore is synced so that it stays put on the new tab
 207       // page, but since it's installed by default we don't want to
 208       // consider it when determining if the profile is dirty.
 209       if (extensions::sync_helper::IsSyncable(iter->get()) &&
 210           (*iter)->id() != extension_misc::kWebStoreAppId &&
 211           (*iter)->id() != extension_misc::kChromeAppId) {
 212         DVLOG(1) << "ProfileSigninConfirmationHelper: "
 213                  << "profile contains a synced extension: " << (*iter)->id();
 214         return true;
 215       }
 216     }
 217   }
 218   return false;
 219 }
 220
 221 void CheckShouldPromptForNewProfile(
 222     Profile* profile,
 223     const base::Callback<void(bool)>& return_result) {
 224   if (HasBeenShutdown(profile) ||
 225       HasBookmarks(profile) ||
 226       HasSyncedExtensions(profile)) {
 227     return_result.Run(true);
 228     return;
 229   }
 230   // Fire asynchronous queries for profile data.
 231   scoped_refptr<ProfileSigninConfirmationHelper> helper =
 232       new ProfileSigninConfirmationHelper(profile, return_result);
 233   const int requests = 2;
 234   helper->set_pending_requests(requests);
 235   helper->CheckHasHistory(kHistoryEntriesBeforeNewProfilePrompt);
 236   helper->CheckHasTypedURLs();
 237 }
 238
 239 }  // namespace ui