tdesktop/Telegram/SourceFiles/lang/lang_cloud_manager.cpp

320 lines
9.5 KiB
C++

/*
This file is part of Telegram Desktop,
the official desktop version of Telegram messaging app, see https://telegram.org
Telegram Desktop is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
It is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
In addition, as a special exception, the copyright holders give permission
to link the code of portions of this program with the OpenSSL library.
Full license: https://github.com/telegramdesktop/tdesktop/blob/master/LICENSE
Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
*/
#include "lang/lang_cloud_manager.h"
#include "lang/lang_instance.h"
#include "mtproto/mtp_instance.h"
#include "storage/localstorage.h"
#include "messenger.h"
#include "apiwrap.h"
#include "auth_session.h"
#include "boxes/confirm_box.h"
#include "lang/lang_file_parser.h"
#include "core/file_utilities.h"
namespace Lang {
CloudManager::CloudManager(Instance &langpack, not_null<MTP::Instance*> mtproto) : MTP::Sender()
, _langpack(langpack) {
requestLangPackDifference();
}
void CloudManager::requestLangPackDifference() {
request(_langPackRequestId).cancel();
if (_langpack.isCustom()) {
return;
}
auto version = _langpack.version();
if (version > 0) {
_langPackRequestId = request(MTPlangpack_GetDifference(MTP_int(version))).done([this](const MTPLangPackDifference &result) {
_langPackRequestId = 0;
applyLangPackDifference(result);
}).fail([this](const RPCError &error) {
_langPackRequestId = 0;
}).send();
} else {
_langPackRequestId = request(MTPlangpack_GetLangPack(MTP_string(_langpack.cloudLangCode()))).done([this](const MTPLangPackDifference &result) {
_langPackRequestId = 0;
applyLangPackDifference(result);
}).fail([this](const RPCError &error) {
_langPackRequestId = 0;
}).send();
}
}
void CloudManager::setSuggestedLanguage(const QString &langCode) {
if (!langCode.isEmpty()
&& langCode != Lang::DefaultLanguageId()) {
_suggestedLanguage = langCode;
} else {
_suggestedLanguage = QString();
}
if (!_languageWasSuggested) {
_languageWasSuggested = true;
_firstLanguageSuggestion.notify();
if (AuthSession::Exists() && _langpack.id().isEmpty() && !_suggestedLanguage.isEmpty()) {
auto isLegacy = [](const QString &languageId) {
for (auto &legacyString : kLegacyLanguages) {
auto legacyId = str_const_toString(legacyString);
if (ConvertLegacyLanguageId(legacyId) == languageId) {
return true;
}
}
return false;
};
// The old available languages (de/it/nl/ko/es/pt_BR) won't be
// suggested anyway, because everyone saw the suggestion in intro.
if (!isLegacy(_suggestedLanguage)) {
_offerSwitchToId = _suggestedLanguage;
offerSwitchLangPack();
}
}
}
}
void CloudManager::applyLangPackDifference(const MTPLangPackDifference &difference) {
Expects(difference.type() == mtpc_langPackDifference);
if (_langpack.isCustom()) {
return;
}
auto &langpack = difference.c_langPackDifference();
auto langpackId = qs(langpack.vlang_code);
if (needToApplyLangPack(langpackId)) {
applyLangPackData(langpack);
if (_restartAfterSwitch) {
App::restart();
}
} else {
LOG(("Lang Warning: Ignoring update for '%1' because our language is '%2'").arg(langpackId).arg(_langpack.id()));
}
}
void CloudManager::requestLanguageList() {
_languagesRequestId = request(MTPlangpack_GetLanguages()).done([this](const MTPVector<MTPLangPackLanguage> &result) {
auto languages = Languages();
for_const (auto &langData, result.v) {
Assert(langData.type() == mtpc_langPackLanguage);
auto &language = langData.c_langPackLanguage();
languages.push_back({ qs(language.vlang_code), qs(language.vname), qs(language.vnative_name) });
}
if (_languages != languages) {
_languages = languages;
_languagesChanged.notify();
}
_languagesRequestId = 0;
}).fail([this](const RPCError &error) {
_languagesRequestId = 0;
}).send();
}
bool CloudManager::needToApplyLangPack(const QString &id) {
auto currentId = _langpack.id();
if (currentId == id) {
return true;
} else if (currentId.isEmpty() && id == DefaultLanguageId()) {
return true;
}
return false;
}
void CloudManager::offerSwitchLangPack() {
Expects(!_offerSwitchToId.isEmpty());
Expects(_offerSwitchToId != DefaultLanguageId());
if (!showOfferSwitchBox()) {
subscribe(languageListChanged(), [this] {
showOfferSwitchBox();
});
requestLanguageList();
}
}
QString CloudManager::findOfferedLanguageName() {
for_const (auto &language, _languages) {
if (language.id == _offerSwitchToId) {
return language.name;
}
}
return QString();
}
bool CloudManager::showOfferSwitchBox() {
auto name = findOfferedLanguageName();
if (name.isEmpty()) {
return false;
}
Ui::show(Box<ConfirmBox>("Do you want to switch your language to " + name + "? You can always change your language in Settings.", "Change", lang(lng_cancel), [this] {
Ui::hideLayer();
if (_offerSwitchToId.isEmpty()) {
return;
}
performSwitchAndRestart(_offerSwitchToId);
}, [this] {
Ui::hideLayer();
changeIdAndReInitConnection(DefaultLanguageId());
Local::writeLangPack();
}), KeepOtherLayers);
return true;
}
void CloudManager::applyLangPackData(const MTPDlangPackDifference &data) {
switchLangPackId(qs(data.vlang_code));
if (_langpack.version() < data.vfrom_version.v) {
requestLangPackDifference();
} else if (!data.vstrings.v.isEmpty()) {
_langpack.applyDifference(data);
Local::writeLangPack();
} else {
LOG(("Lang Info: Up to date."));
}
}
bool CloudManager::canApplyWithoutRestart(const QString &id) const {
if (id == qstr("TEST_X") || id == qstr("TEST_0")) {
return true;
}
// We don't support instant language switch if the auth session exists :(
return !AuthSession::Exists();
}
void CloudManager::resetToDefault() {
performSwitch(DefaultLanguageId());
}
void CloudManager::switchToLanguage(QString id) {
if (id.isEmpty()) {
id = DefaultLanguageId();
}
if (_langpack.id() == id && id != qstr("custom")) {
return;
}
request(_switchingToLanguageRequest).cancel();
if (id == qstr("custom")) {
performSwitchToCustom();
} else if (canApplyWithoutRestart(id)) {
performSwitch(id);
} else {
QVector<MTPstring> keys;
keys.reserve(3);
keys.push_back(MTP_string("lng_sure_save_language"));
keys.push_back(MTP_string("lng_box_ok"));
keys.push_back(MTP_string("lng_cancel"));
_switchingToLanguageRequest = request(MTPlangpack_GetStrings(MTP_string(id), MTP_vector<MTPstring>(std::move(keys)))).done([this, id](const MTPVector<MTPLangPackString> &result) {
auto values = Instance::ParseStrings(result);
auto getValue = [&values](LangKey key) {
auto it = values.find(key);
return (it == values.cend()) ? GetOriginalValue(key) : it->second;
};
auto text = getValue(lng_sure_save_language);
auto save = getValue(lng_box_ok);
auto cancel = getValue(lng_cancel);
Ui::show(Box<ConfirmBox>(text, save, cancel, [this, id] {
performSwitchAndRestart(id);
}), KeepOtherLayers);
}).send();
}
}
void CloudManager::performSwitchToCustom() {
auto filter = qsl("Language files (*.strings)");
auto title = qsl("Choose language .strings file");
FileDialog::GetOpenPath(title, filter, [weak = base::make_weak_unique(this)](const FileDialog::OpenResult &result) {
if (!weak || result.paths.isEmpty()) {
return;
}
auto filePath = result.paths.front();
Lang::FileParser loader(filePath, { lng_sure_save_language, lng_box_ok, lng_cancel });
if (loader.errors().isEmpty()) {
weak->request(weak->_switchingToLanguageRequest).cancel();
if (weak->canApplyWithoutRestart(qsl("custom"))) {
weak->_langpack.switchToCustomFile(filePath);
} else {
auto values = loader.found();
auto getValue = [&values](LangKey key) {
auto it = values.find(key);
return (it == values.cend()) ? GetOriginalValue(key) : it.value();
};
auto text = getValue(lng_sure_save_language);
auto save = getValue(lng_box_ok);
auto cancel = getValue(lng_cancel);
Ui::show(Box<ConfirmBox>(text, save, cancel, [weak, filePath] {
weak->_langpack.switchToCustomFile(filePath);
App::restart();
}), KeepOtherLayers);
}
} else {
Ui::show(Box<InformBox>("Custom lang failed :(\n\nError: " + loader.errors()), KeepOtherLayers);
}
});
}
void CloudManager::switchToTestLanguage() {
auto testLanguageId = (_langpack.id() == qstr("TEST_X")) ? qsl("TEST_0") : qsl("TEST_X");
performSwitch(testLanguageId);
}
void CloudManager::performSwitch(const QString &id) {
_restartAfterSwitch = false;
switchLangPackId(id);
requestLangPackDifference();
}
void CloudManager::performSwitchAndRestart(const QString &id) {
performSwitch(id);
if (_langPackRequestId) {
_restartAfterSwitch = true;
} else {
App::restart();
}
}
void CloudManager::switchLangPackId(const QString &id) {
auto currentId = _langpack.id();
auto notChanged = (currentId == id) || (currentId.isEmpty() && id == DefaultLanguageId());
if (!notChanged) {
changeIdAndReInitConnection(id);
}
}
void CloudManager::changeIdAndReInitConnection(const QString &id) {
_langpack.switchToId(id);
auto mtproto = requestMTP();
mtproto->reInitConnection(mtproto->mainDcId());
}
CloudManager &CurrentCloudManager() {
auto result = Messenger::Instance().langCloudManager();
Assert(result != nullptr);
return *result;
}
} // namespace Lang