chrome/browser/browsing_data/browsing_data_flash_lso_helper.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/browsing_data/browsing_data_flash_lso_helper.h"
   6
   7 #include <limits>
   8 #include <map>
   9
  10 #include "base/callback.h"
  11 #include "base/logging.h"
  12 #include "chrome/browser/pepper_flash_settings_manager.h"
  13
  14 namespace {
  15
  16 class BrowsingDataFlashLSOHelperImpl
  17     : public BrowsingDataFlashLSOHelper,
  18       public PepperFlashSettingsManager::Client {
  19  public:
  20   explicit BrowsingDataFlashLSOHelperImpl(
  21       content::BrowserContext* browser_context);
  22
  23   // BrowsingDataFlashLSOHelper implementation:
  24   void StartFetching(const GetSitesWithFlashDataCallback& callback) override;
  25   void DeleteFlashLSOsForSite(const std::string& site) override;
  26
  27   // PepperFlashSettingsManager::Client overrides:
  28   void OnGetSitesWithDataCompleted(
  29       uint32 request_id,
  30       const std::vector<std::string>& sites) override;
  31   void OnClearSiteDataCompleted(uint32 request_id, bool success) override;
  32
  33  private:
  34   ~BrowsingDataFlashLSOHelperImpl() override;
  35
  36   // Asynchronously fetches and deletes data and calls us back.
  37   PepperFlashSettingsManager settings_manager_;
  38
  39   // Identifies the request to fetch site data.
  40   uint32 get_sites_with_data_request_id_;
  41
  42   // Contains the pending requests to clear site data. The key is the request
  43   // ID, the value the site for which to clear data.
  44   std::map<uint32, std::string> clear_site_data_ids_;
  45
  46   // Called when we have fetched the list of sites.
  47   GetSitesWithFlashDataCallback callback_;
  48
  49   DISALLOW_COPY_AND_ASSIGN(BrowsingDataFlashLSOHelperImpl);
  50 };
  51
  52 BrowsingDataFlashLSOHelperImpl::BrowsingDataFlashLSOHelperImpl(
  53     content::BrowserContext* browser_context)
  54     : settings_manager_(this, browser_context),
  55       get_sites_with_data_request_id_(0u) {
  56 }
  57
  58 BrowsingDataFlashLSOHelperImpl::~BrowsingDataFlashLSOHelperImpl() {
  59 }
  60
  61 void BrowsingDataFlashLSOHelperImpl::StartFetching(
  62     const GetSitesWithFlashDataCallback& callback) {
  63   DCHECK(callback_.is_null());
  64   callback_ = callback;
  65   get_sites_with_data_request_id_ = settings_manager_.GetSitesWithData();
  66 }
  67
  68 void BrowsingDataFlashLSOHelperImpl::DeleteFlashLSOsForSite(
  69     const std::string& site) {
  70   const uint64 kClearAllData = 0;
  71   uint32 id = settings_manager_.ClearSiteData(
  72       site, kClearAllData, std::numeric_limits<uint64>::max());
  73   clear_site_data_ids_[id] = site;
  74 }
  75
  76 void BrowsingDataFlashLSOHelperImpl::OnGetSitesWithDataCompleted(
  77     uint32 request_id,
  78     const std::vector<std::string>& sites) {
  79   DCHECK_EQ(get_sites_with_data_request_id_, request_id);
  80   callback_.Run(sites);
  81   callback_ = GetSitesWithFlashDataCallback();
  82 }
  83
  84 void BrowsingDataFlashLSOHelperImpl::OnClearSiteDataCompleted(uint32 request_id,
  85                                                               bool success) {
  86   std::map<uint32, std::string>::iterator entry =
  87       clear_site_data_ids_.find(request_id);
  88   DCHECK(entry != clear_site_data_ids_.end());
  89   LOG_IF(ERROR, !success) << "Couldn't clear Flash LSO data for "
  90                           << entry->second;
  91   clear_site_data_ids_.erase(entry);
  92 }
  93
  94 }  // namespace
  95
  96 // static
  97 BrowsingDataFlashLSOHelper* BrowsingDataFlashLSOHelper::Create(
  98     content::BrowserContext* browser_context) {
  99   return new BrowsingDataFlashLSOHelperImpl(browser_context);
 100 }