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