chrome/browser/ui/webui/options/clear_browser_data_handler.h

   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 #ifndef CHROME_BROWSER_UI_WEBUI_OPTIONS_CLEAR_BROWSER_DATA_HANDLER_H_
   6 #define CHROME_BROWSER_UI_WEBUI_OPTIONS_CLEAR_BROWSER_DATA_HANDLER_H_
   7
   8 #include "base/memory/scoped_vector.h"
   9 #include "base/prefs/pref_member.h"
  10 #include "chrome/browser/browsing_data/browsing_data_counter.h"
  11 #include "chrome/browser/browsing_data/browsing_data_remover.h"
  12 #include "chrome/browser/ui/webui/options/options_ui.h"
  13
  14 namespace options {
  15
  16 // Clear browser data handler page UI handler.
  17 class ClearBrowserDataHandler : public OptionsPageUIHandler,
  18                                 public BrowsingDataRemover::Observer {
  19  public:
  20   ClearBrowserDataHandler();
  21   ~ClearBrowserDataHandler() override;
  22
  23   // OptionsPageUIHandler implementation.
  24   void GetLocalizedValues(base::DictionaryValue* localized_strings) override;
  25   void InitializeHandler() override;
  26   void InitializePage() override;
  27
  28   // WebUIMessageHandler implementation.
  29   void RegisterMessages() override;
  30
  31   void UpdateInfoBannerVisibility();
  32
  33  private:
  34   // Javascript callback to start clearing data.
  35   void HandleClearBrowserData(const base::ListValue* value);
  36
  37   // BrowsingDataRemover::Observer implementation.
  38   // Closes the dialog once all requested data has been removed.
  39   void OnBrowsingDataRemoverDone() override;
  40
  41   // Updates UI when the pref to allow clearing history changes.
  42   virtual void OnBrowsingHistoryPrefChanged();
  43
  44   // Adds a |counter| for browsing data. Its output will be displayed
  45   // in the dialog with the string |text_grd_id|.
  46   void AddCounter(scoped_ptr<BrowsingDataCounter> counter, int text_grd_id);
  47
  48   // Updates the counter of the pref |pref_name| in the UI according
  49   // to a callback from a |BrowsingDataCounter| that specifies whether
  50   // the counting has |finished| and what the |count| is. The |count| will
  51   // be substituted into the string with the ID |text_grd_id|.
  52   void UpdateCounterText(const std::string& pref_name,
  53                          int text_grd_id,
  54                          bool finished,
  55                          uint32 count);
  56
  57   // If non-null it means removal is in progress. BrowsingDataRemover takes care
  58   // of deleting itself when done.
  59   BrowsingDataRemover* remover_;
  60
  61   // Keeps track of whether clearing LSO data is supported.
  62   BooleanPrefMember clear_plugin_lso_data_enabled_;
  63
  64   // Keeps track of whether Pepper Flash is enabled and thus Flapper-specific
  65   // settings and removal options (e.g. Content Licenses) are available.
  66   BooleanPrefMember pepper_flash_settings_enabled_;
  67
  68   // Keeps track of whether deleting browsing history and downloads is allowed.
  69   BooleanPrefMember allow_deleting_browser_history_;
  70
  71   // Counters that calculate the data volume for some of the data types.
  72   ScopedVector<BrowsingDataCounter> counters_;
  73
  74   DISALLOW_COPY_AND_ASSIGN(ClearBrowserDataHandler);
  75 };
  76
  77 }  // namespace options
  78
  79 #endif  // CHROME_BROWSER_UI_WEBUI_OPTIONS_CLEAR_BROWSER_DATA_HANDLER_H_