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// Copyright 2015 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/browsing_data/browsing_data_counter_utils.h"
#include "base/command_line.h"
#include "chrome/browser/browsing_data/autofill_counter.h"
#include "chrome/browser/browsing_data/cache_counter.h"
#include "chrome/browser/browsing_data/history_counter.h"
#include "chrome/browser/browsing_data/passwords_counter.h"
#include "chrome/common/chrome_switches.h"
#include "chrome/common/pref_names.h"
#include "chrome/grit/generated_resources.h"
#include "components/prefs/pref_service.h"
#include "ui/base/l10n/l10n_util.h"
#include "ui/base/text/bytes_formatting.h"
bool AreCountersEnabled() {
if (base::CommandLine::ForCurrentProcess()->HasSwitch(
switches::kEnableClearBrowsingDataCounters)) {
return true;
}
if (base::CommandLine::ForCurrentProcess()->HasSwitch(
switches::kDisableClearBrowsingDataCounters)) {
return false;
}
// Enabled by default on desktop. Disabled on Android until the feature
// is finished.
#if defined(OS_ANDROID)
return false;
#else
return true;
#endif
}
// A helper function to display the size of cache in units of MB or higher.
// We need this, as 1 MB is the lowest nonzero cache size displayed by the
// counter.
base::string16 FormatBytesMBOrHigher(BrowsingDataCounter::ResultInt bytes) {
if (ui::GetByteDisplayUnits(bytes) >= ui::DataUnits::DATA_UNITS_MEBIBYTE)
return ui::FormatBytes(bytes);
return ui::FormatBytesWithUnits(
bytes, ui::DataUnits::DATA_UNITS_MEBIBYTE, true);
}
base::string16 GetCounterTextFromResult(
const BrowsingDataCounter::Result* result) {
base::string16 text;
std::string pref_name = result->source()->GetPrefName();
if (!result->Finished()) {
// The counter is still counting.
text = l10n_util::GetStringUTF16(IDS_CLEAR_BROWSING_DATA_CALCULATING);
} else if (pref_name == prefs::kDeletePasswords) {
// Passwords counter.
BrowsingDataCounter::ResultInt passwords_count =
static_cast<const BrowsingDataCounter::FinishedResult*>(
result)->Value();
text = l10n_util::GetPluralStringFUTF16(
IDS_DEL_PASSWORDS_COUNTER, passwords_count);
} else if (pref_name == prefs::kDeleteCache) {
// Cache counter.
BrowsingDataCounter::ResultInt cache_size_bytes =
static_cast<const BrowsingDataCounter::FinishedResult*>(
result)->Value();
PrefService* prefs = result->source()->GetProfile()->GetPrefs();
BrowsingDataRemover::TimePeriod time_period =
static_cast<BrowsingDataRemover::TimePeriod>(
prefs->GetInteger(prefs::kDeleteTimePeriod));
// Three cases: Nonzero result for the entire cache, nonzero result for
// a subset of cache (i.e. a finite time interval), and almost zero (< 1MB).
static const int kBytesInAMegabyte = 1024 * 1024;
if (cache_size_bytes >= kBytesInAMegabyte) {
base::string16 formatted_size = FormatBytesMBOrHigher(cache_size_bytes);
text = time_period == BrowsingDataRemover::EVERYTHING
? formatted_size
: l10n_util::GetStringFUTF16(IDS_DEL_CACHE_COUNTER_UPPER_ESTIMATE,
formatted_size);
} else {
text = l10n_util::GetStringUTF16(IDS_DEL_CACHE_COUNTER_ALMOST_EMPTY);
}
} else if (pref_name == prefs::kDeleteBrowsingHistory) {
// History counter.
const HistoryCounter::HistoryResult* history_result =
static_cast<const HistoryCounter::HistoryResult*>(result);
BrowsingDataCounter::ResultInt local_item_count = history_result->Value();
bool has_synced_visits = history_result->has_synced_visits();
text = has_synced_visits
? l10n_util::GetPluralStringFUTF16(
IDS_DEL_BROWSING_HISTORY_COUNTER_SYNCED, local_item_count)
: l10n_util::GetPluralStringFUTF16(
IDS_DEL_BROWSING_HISTORY_COUNTER, local_item_count);
} else if (pref_name == prefs::kDeleteFormData) {
// Autofill counter.
const AutofillCounter::AutofillResult* autofill_result =
static_cast<const AutofillCounter::AutofillResult*>(result);
AutofillCounter::ResultInt num_suggestions = autofill_result->Value();
AutofillCounter::ResultInt num_credit_cards =
autofill_result->num_credit_cards();
AutofillCounter::ResultInt num_addresses = autofill_result->num_addresses();
std::vector<base::string16> displayed_strings;
if (num_credit_cards) {
displayed_strings.push_back(l10n_util::GetPluralStringFUTF16(
IDS_DEL_AUTOFILL_COUNTER_CREDIT_CARDS, num_credit_cards));
}
if (num_addresses) {
displayed_strings.push_back(l10n_util::GetPluralStringFUTF16(
IDS_DEL_AUTOFILL_COUNTER_ADDRESSES, num_addresses));
}
if (num_suggestions) {
// We use a different wording for autocomplete suggestions based on the
// length of the entire string.
switch (displayed_strings.size()) {
case 0:
displayed_strings.push_back(l10n_util::GetPluralStringFUTF16(
IDS_DEL_AUTOFILL_COUNTER_SUGGESTIONS, num_suggestions));
break;
case 1:
displayed_strings.push_back(l10n_util::GetPluralStringFUTF16(
IDS_DEL_AUTOFILL_COUNTER_SUGGESTIONS_LONG, num_suggestions));
break;
case 2:
displayed_strings.push_back(l10n_util::GetPluralStringFUTF16(
IDS_DEL_AUTOFILL_COUNTER_SUGGESTIONS_SHORT, num_suggestions));
break;
default:
NOTREACHED();
}
}
// Construct the resulting string from the sections in |displayed_strings|.
switch (displayed_strings.size()) {
case 0:
text = l10n_util::GetStringUTF16(IDS_DEL_AUTOFILL_COUNTER_EMPTY);
break;
case 1:
text = displayed_strings[0];
break;
case 2:
text = l10n_util::GetStringFUTF16(IDS_DEL_AUTOFILL_COUNTER_TWO_TYPES,
displayed_strings[0],
displayed_strings[1]);
break;
case 3:
text = l10n_util::GetStringFUTF16(IDS_DEL_AUTOFILL_COUNTER_THREE_TYPES,
displayed_strings[0],
displayed_strings[1],
displayed_strings[2]);
break;
default:
NOTREACHED();
}
}
return text;
}
bool GetDeletionPreferenceFromDataType(
BrowsingDataType data_type, std::string* out_pref) {
switch (data_type) {
case HISTORY:
*out_pref = prefs::kDeleteBrowsingHistory;
return true;
case CACHE:
*out_pref = prefs::kDeleteCache;
return true;
case COOKIES:
*out_pref = prefs::kDeleteCookies;
return true;
case PASSWORDS:
*out_pref = prefs::kDeletePasswords;
return true;
case FORM_DATA:
*out_pref = prefs::kDeleteFormData;
return true;
case BOOKMARKS:
// Bookmarks are deleted on the Android side. No corresponding deletion
// preference.
return false;
case NUM_TYPES:
// This is not an actual type.
NOTREACHED();
return false;
}
NOTREACHED();
return false;
}
BrowsingDataCounter* CreateCounterForPreference(std::string pref_name) {
if (!AreCountersEnabled())
return nullptr;
if (pref_name == prefs::kDeleteBrowsingHistory)
return new HistoryCounter();
if (pref_name == prefs::kDeleteCache)
return new CacheCounter();
if (pref_name == prefs::kDeletePasswords)
return new PasswordsCounter();
if (pref_name == prefs::kDeleteFormData)
return new AutofillCounter();
return nullptr;
}
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