clear_browser_data_handler.cc revision f8ee788a64d60abd8f2d742a5fdedde054ecd910 
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/ui/webui/options/clear_browser_data_handler.h"
6
7#include "base/basictypes.h"
8#include "base/bind.h"
9#include "base/bind_helpers.h"
10#include "base/prefs/pref_service.h"
11#include "base/strings/string16.h"
12#include "base/values.h"
13#include "chrome/browser/browser_process.h"
14#include "chrome/browser/browsing_data/browsing_data_helper.h"
15#include "chrome/browser/browsing_data/browsing_data_remover.h"
16#include "chrome/browser/google/google_util.h"
17#include "chrome/browser/profiles/profile.h"
18#include "chrome/common/pref_names.h"
19#include "content/public/browser/notification_details.h"
20#include "content/public/browser/web_ui.h"
21#include "grit/chromium_strings.h"
22#include "grit/generated_resources.h"
23#include "grit/locale_settings.h"
24#include "ui/base/accelerators/accelerator.h"
25#include "ui/base/l10n/l10n_util.h"
26
27namespace {
28const char kClearBrowsingDataLearnMoreUrl[] =
29    "https://support.google.com/chrome/?p=settings_clear_browsing_data";
30}
31
32namespace options {
33
34ClearBrowserDataHandler::ClearBrowserDataHandler()
35    : remover_(NULL) {
36}
37
38ClearBrowserDataHandler::~ClearBrowserDataHandler() {
39  if (remover_)
40    remover_->RemoveObserver(this);
41}
42
43void ClearBrowserDataHandler::InitializeHandler() {
44  PrefService* prefs = Profile::FromWebUI(web_ui())->GetPrefs();
45  clear_plugin_lso_data_enabled_.Init(prefs::kClearPluginLSODataEnabled, prefs);
46  pepper_flash_settings_enabled_.Init(prefs::kPepperFlashSettingsEnabled,
47                                      prefs);
48  allow_deleting_browser_history_.Init(
49      prefs::kAllowDeletingBrowserHistory,
50      prefs,
51      base::Bind(&ClearBrowserDataHandler::OnBrowsingHistoryPrefChanged,
52                 base::Unretained(this)));
53}
54
55void ClearBrowserDataHandler::InitializePage() {
56  UpdateInfoBannerVisibility();
57  OnBrowsingHistoryPrefChanged();
58  bool removal_in_progress = !!remover_;
59  web_ui()->CallJavascriptFunction("ClearBrowserDataOverlay.setClearing",
60                                   base::FundamentalValue(removal_in_progress));
61
62  web_ui()->CallJavascriptFunction(
63      "ClearBrowserDataOverlay.markInitializationComplete");
64}
65
66void ClearBrowserDataHandler::UpdateInfoBannerVisibility() {
67  Profile* profile = Profile::FromWebUI(web_ui());
68  base::Time lastClearBrowsingDataTime = base::Time::FromInternalValue(
69      profile->GetPrefs()->GetInt64(prefs::kLastClearBrowsingDataTime));
70
71  const int64 kHoursPerDay = 24;
72  bool visible = (base::Time::Now() - lastClearBrowsingDataTime) <=
73      base::TimeDelta::FromHours(kHoursPerDay);
74
75  base::ListValue args;
76  args.Append(base::Value::CreateBooleanValue(visible));
77  web_ui()->CallJavascriptFunction(
78      "ClearBrowserDataOverlay.setBannerVisibility", args);
79}
80
81void ClearBrowserDataHandler::GetLocalizedValues(
82    base::DictionaryValue* localized_strings) {
83  DCHECK(localized_strings);
84
85  static OptionsStringResource resources[] = {
86    { "clearBrowserDataLabel", IDS_CLEAR_BROWSING_DATA_LABEL },
87    { "contentSettingsAndSearchEnginesRemain",
88      IDS_CLEAR_BROWSING_DATA_SOME_STUFF_REMAINS },
89    { "deleteBrowsingHistoryCheckbox", IDS_DEL_BROWSING_HISTORY_CHKBOX },
90    { "deleteDownloadHistoryCheckbox", IDS_DEL_DOWNLOAD_HISTORY_CHKBOX },
91    { "deleteCacheCheckbox", IDS_DEL_CACHE_CHKBOX },
92    { "deleteCookiesCheckbox", IDS_DEL_COOKIES_CHKBOX },
93    { "deleteCookiesFlashCheckbox", IDS_DEL_COOKIES_FLASH_CHKBOX },
94    { "deletePasswordsCheckbox", IDS_DEL_PASSWORDS_CHKBOX },
95    { "deleteFormDataCheckbox", IDS_DEL_FORM_DATA_CHKBOX },
96    { "deleteHostedAppsDataCheckbox", IDS_DEL_HOSTED_APPS_DATA_CHKBOX },
97    { "deauthorizeContentLicensesCheckbox",
98      IDS_DEAUTHORIZE_CONTENT_LICENSES_CHKBOX },
99    { "clearBrowserDataCommit", IDS_CLEAR_BROWSING_DATA_COMMIT },
100    { "flash_storage_url", IDS_FLASH_STORAGE_URL },
101  };
102
103  RegisterStrings(localized_strings, resources, arraysize(resources));
104  RegisterTitle(localized_strings, "clearBrowserDataOverlay",
105                IDS_CLEAR_BROWSING_DATA_TITLE);
106  localized_strings->SetString("clearBrowsingDataLearnMoreUrl",
107                               kClearBrowsingDataLearnMoreUrl);
108
109  ui::Accelerator acc(ui::VKEY_N, ui::EF_CONTROL_DOWN | ui::EF_SHIFT_DOWN);
110  localized_strings->SetString(
111      "clearBrowserDataInfoBar",
112      l10n_util::GetStringFUTF16(
113          IDS_CLEAR_BROWSING_DATA_INFO_BAR_TEXT,
114          acc.GetShortcutText()));
115
116  base::ListValue* time_list = new base::ListValue;
117  for (int i = 0; i < 5; i++) {
118    base::string16 label_string;
119    switch (i) {
120      case 0:
121        label_string = l10n_util::GetStringUTF16(IDS_CLEAR_DATA_HOUR);
122        break;
123      case 1:
124        label_string = l10n_util::GetStringUTF16(IDS_CLEAR_DATA_DAY);
125        break;
126      case 2:
127        label_string = l10n_util::GetStringUTF16(IDS_CLEAR_DATA_WEEK);
128        break;
129      case 3:
130        label_string = l10n_util::GetStringUTF16(IDS_CLEAR_DATA_4WEEKS);
131        break;
132      case 4:
133        label_string = l10n_util::GetStringUTF16(IDS_CLEAR_DATA_EVERYTHING);
134        break;
135    }
136    base::ListValue* option = new base::ListValue();
137    option->Append(new base::FundamentalValue(i));
138    option->Append(new base::StringValue(label_string));
139    time_list->Append(option);
140  }
141  localized_strings->Set("clearBrowserDataTimeList", time_list);
142  localized_strings->SetBoolean("showDeleteBrowsingHistoryCheckboxes",
143                                !Profile::FromWebUI(web_ui())->IsSupervised());
144}
145
146void ClearBrowserDataHandler::RegisterMessages() {
147  // Setup handlers specific to this panel.
148  web_ui()->RegisterMessageCallback("performClearBrowserData",
149      base::Bind(&ClearBrowserDataHandler::HandleClearBrowserData,
150                 base::Unretained(this)));
151}
152
153void ClearBrowserDataHandler::HandleClearBrowserData(
154    const base::ListValue* value) {
155  // We should never be called when the previous clearing has not yet finished.
156  CHECK(!remover_);
157
158  Profile* profile = Profile::FromWebUI(web_ui());
159  PrefService* prefs = profile->GetPrefs();
160
161  int site_data_mask = BrowsingDataRemover::REMOVE_SITE_DATA;
162  // Don't try to clear LSO data if it's not supported.
163  if (!*clear_plugin_lso_data_enabled_)
164    site_data_mask &= ~BrowsingDataRemover::REMOVE_PLUGIN_DATA;
165
166  int remove_mask = 0;
167  int origin_mask = 0;
168  if (prefs->GetBoolean(prefs::kDeleteBrowsingHistory) &&
169      *allow_deleting_browser_history_) {
170    remove_mask |= BrowsingDataRemover::REMOVE_HISTORY;
171  }
172  if (prefs->GetBoolean(prefs::kDeleteDownloadHistory) &&
173      *allow_deleting_browser_history_) {
174    remove_mask |= BrowsingDataRemover::REMOVE_DOWNLOADS;
175  }
176  if (prefs->GetBoolean(prefs::kDeleteCache))
177    remove_mask |= BrowsingDataRemover::REMOVE_CACHE;
178  if (prefs->GetBoolean(prefs::kDeleteCookies)) {
179    remove_mask |= site_data_mask;
180    origin_mask |= BrowsingDataHelper::UNPROTECTED_WEB;
181  }
182  if (prefs->GetBoolean(prefs::kDeletePasswords))
183    remove_mask |= BrowsingDataRemover::REMOVE_PASSWORDS;
184  if (prefs->GetBoolean(prefs::kDeleteFormData))
185    remove_mask |= BrowsingDataRemover::REMOVE_FORM_DATA;
186  // Clearing Content Licenses is only supported in Pepper Flash.
187  if (prefs->GetBoolean(prefs::kDeauthorizeContentLicenses) &&
188      *pepper_flash_settings_enabled_) {
189    remove_mask |= BrowsingDataRemover::REMOVE_CONTENT_LICENSES;
190  }
191  if (prefs->GetBoolean(prefs::kDeleteHostedAppsData)) {
192    remove_mask |= site_data_mask;
193    origin_mask |= BrowsingDataHelper::PROTECTED_WEB;
194  }
195
196  // BrowsingDataRemover deletes itself when done.
197  int period_selected = prefs->GetInteger(prefs::kDeleteTimePeriod);
198  remover_ = BrowsingDataRemover::CreateForPeriod(profile,
199      static_cast<BrowsingDataRemover::TimePeriod>(period_selected));
200  remover_->AddObserver(this);
201  remover_->Remove(remove_mask, origin_mask);
202
203  // Store the clear browsing data time. Next time the clear browsing data
204  // dialog is open, this time is used to decide whether to display an info
205  // banner or not.
206  prefs->SetInt64(prefs::kLastClearBrowsingDataTime,
207                  base::Time::Now().ToInternalValue());
208}
209
210void ClearBrowserDataHandler::OnBrowsingDataRemoverDone() {
211  // No need to remove ourselves as an observer as BrowsingDataRemover deletes
212  // itself after we return.
213  remover_ = NULL;
214  web_ui()->CallJavascriptFunction("ClearBrowserDataOverlay.doneClearing");
215}
216
217void ClearBrowserDataHandler::OnBrowsingHistoryPrefChanged() {
218  web_ui()->CallJavascriptFunction(
219      "ClearBrowserDataOverlay.setAllowDeletingHistory",
220      base::FundamentalValue(*allow_deleting_browser_history_));
221}
222
223}  // namespace options
224