tdesktop/Telegram/SourceFiles/intro/introwidget.cpp

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/*
This file is part of Telegram Desktop,
the official desktop application for the Telegram messaging service.
For license and copyright information please follow this link:
https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
*/
#include "intro/introwidget.h"
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#include "lang/lang_keys.h"
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#include "storage/localstorage.h"
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#include "lang/lang_file_parser.h"
#include "intro/introstart.h"
#include "intro/introphone.h"
#include "intro/introcode.h"
#include "intro/introsignup.h"
#include "intro/intropwdcheck.h"
#include "mainwidget.h"
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#include "apiwrap.h"
#include "mainwindow.h"
#include "messenger.h"
#include "application.h"
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#include "boxes/confirm_box.h"
#include "ui/text/text.h"
#include "ui/widgets/buttons.h"
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#include "ui/widgets/labels.h"
#include "ui/wrap/fade_wrap.h"
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#include "ui/effects/slide_animation.h"
#include "core/update_checker.h"
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#include "window/window_slide_animation.h"
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#include "window/window_connecting_widget.h"
#include "styles/style_boxes.h"
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#include "styles/style_intro.h"
#include "styles/style_window.h"
#include "window/themes/window_theme.h"
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#include "lang/lang_cloud_manager.h"
#include "auth_session.h"
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namespace Intro {
namespace {
constexpr str_const kDefaultCountry = "US";
} // namespace
Widget::Widget(QWidget *parent) : RpWidget(parent)
, _back(this, object_ptr<Ui::IconButton>(this, st::introBackButton))
, _settings(
this,
object_ptr<Ui::RoundButton>(
this,
langFactory(lng_menu_settings),
st::defaultBoxButton))
, _next(this, base::lambda<QString()>(), st::introNextButton) {
auto country = Platform::SystemCountry();
if (country.isEmpty()) {
country = str_const_toString(kDefaultCountry);
}
getData()->country = country;
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_back->entity()->setClickedCallback([this] { historyMove(Direction::Back); });
_back->hide(anim::type::instant);
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_next->setClickedCallback([this] { getStep()->submit(); });
_settings->entity()->setClickedCallback([] { App::wnd()->showSettings(); });
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getNearestDC();
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setupConnectingWidget();
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appendStep(new StartWidget(this, getData()));
fixOrder();
subscribe(Lang::CurrentCloudManager().firstLanguageSuggestion(), [this] { createLanguageLink(); });
createLanguageLink();
if (_changeLanguage) _changeLanguage->finishAnimating();
subscribe(Lang::Current().updated(), [this] { refreshLang(); });
show();
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showControls();
getStep()->showFast();
cSetPasswordRecovered(false);
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#ifndef TDESKTOP_DISABLE_AUTOUPDATE
Core::UpdateChecker checker;
checker.isLatest() | rpl::start_with_next([=] {
onCheckUpdateStatus();
}, lifetime());
checker.failed() | rpl::start_with_next([=] {
onCheckUpdateStatus();
}, lifetime());
checker.ready() | rpl::start_with_next([=] {
onCheckUpdateStatus();
}, lifetime());
checker.start();
onCheckUpdateStatus();
#endif // !TDESKTOP_DISABLE_AUTOUPDATE
}
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void Widget::setupConnectingWidget() {
_connecting = Window::ConnectingWidget::CreateDefaultWidget(
this,
rpl::single(true));
}
void Widget::refreshLang() {
_changeLanguage.destroy();
createLanguageLink();
InvokeQueued(this, [this] { updateControlsGeometry(); });
}
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void Widget::createLanguageLink() {
if (_changeLanguage) return;
auto createLink = [this](const QString &text, const QString &languageId) {
_changeLanguage.create(
this,
object_ptr<Ui::LinkButton>(this, text));
_changeLanguage->hide(anim::type::instant);
_changeLanguage->entity()->setClickedCallback([=] {
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Lang::CurrentCloudManager().switchToLanguage(languageId);
});
_changeLanguage->toggle(!_resetAccount, anim::type::normal);
updateControlsGeometry();
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};
auto currentId = Lang::Current().id();
auto defaultId = Lang::DefaultLanguageId();
auto suggestedId = Lang::CurrentCloudManager().suggestedLanguage();
if (!currentId.isEmpty() && currentId != defaultId) {
createLink(Lang::GetOriginalValue(lng_switch_to_this), defaultId);
} else if (!suggestedId.isEmpty() && suggestedId != currentId) {
request(MTPlangpack_GetStrings(
MTP_string(suggestedId),
MTP_vector<MTPstring>(1, MTP_string("lng_switch_to_this"))
)).done([=](const MTPVector<MTPLangPackString> &result) {
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auto strings = Lang::Instance::ParseStrings(result);
auto it = strings.find(lng_switch_to_this);
if (it != strings.end()) {
createLink(it->second, suggestedId);
}
}).send();
}
}
#ifndef TDESKTOP_DISABLE_AUTOUPDATE
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void Widget::onCheckUpdateStatus() {
if (Core::UpdateChecker().state() == Core::UpdateChecker::State::Ready) {
if (_update) return;
_update.create(
this,
object_ptr<Ui::RoundButton>(
this,
langFactory(lng_menu_update),
st::defaultBoxButton));
if (!_a_show.animating()) {
_update->setVisible(true);
}
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_update->entity()->setClickedCallback([] {
Core::checkReadyUpdate();
App::restart();
});
} else {
if (!_update) return;
_update.destroy();
}
updateControlsGeometry();
}
#endif // TDESKTOP_DISABLE_AUTOUPDATE
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void Widget::setInnerFocus() {
if (getStep()->animating()) {
setFocus();
} else {
getStep()->setInnerFocus();
}
}
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void Widget::historyMove(Direction direction) {
if (getStep()->animating()) return;
Assert(_stepHistory.size() > 1);
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auto wasStep = getStep((direction == Direction::Back) ? 0 : 1);
if (direction == Direction::Back) {
_stepHistory.pop_back();
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wasStep->cancelled();
} else if (direction == Direction::Replace) {
_stepHistory.removeAt(_stepHistory.size() - 2);
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}
getStep()->prepareShowAnimated(wasStep);
if (wasStep->hasCover() != getStep()->hasCover()) {
_nextTopFrom = wasStep->contentTop() + st::introStepHeight;
_controlsTopFrom = wasStep->hasCover() ? st::introCoverHeight : 0;
_coverShownAnimation.start([this] { updateControlsGeometry(); }, 0., 1., st::introCoverDuration, wasStep->hasCover() ? anim::linear : anim::easeOutCirc);
}
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if (direction == Direction::Forward || direction == Direction::Replace) {
wasStep->finished();
}
if (direction == Direction::Back || direction == Direction::Replace) {
delete base::take(wasStep);
}
_back->toggle(getStep()->hasBack(), anim::type::normal);
auto stepHasCover = getStep()->hasCover();
_settings->toggle(!stepHasCover, anim::type::normal);
if (_update) _update->toggle(!stepHasCover, anim::type::normal);
if (_changeLanguage) _changeLanguage->toggle(!_resetAccount, anim::type::normal);
_next->setText([this] { return getStep()->nextButtonText(); });
if (_resetAccount) _resetAccount->hide(anim::type::normal);
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getStep()->showAnimated(direction);
fixOrder();
}
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void Widget::fixOrder() {
_next->raise();
if (_update) _update->raise();
_settings->raise();
_back->raise();
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_connecting->raise();
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}
void Widget::moveToStep(Step *step, Direction direction) {
appendStep(step);
_back->raise();
_settings->raise();
if (_update) {
_update->raise();
}
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_connecting->raise();
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historyMove(direction);
}
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void Widget::appendStep(Step *step) {
_stepHistory.push_back(step);
step->setGeometry(calculateStepRect());
step->setGoCallback([this](Step *step, Direction direction) {
if (direction == Direction::Back) {
historyMove(direction);
} else {
moveToStep(step, direction);
}
});
step->setShowResetCallback([this] {
showResetButton();
});
}
void Widget::showResetButton() {
if (!_resetAccount) {
auto entity = object_ptr<Ui::RoundButton>(this, langFactory(lng_signin_reset_account), st::introResetButton);
_resetAccount.create(
this,
std::move(entity));
_resetAccount->hide(anim::type::instant);
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_resetAccount->entity()->setClickedCallback([this] { resetAccount(); });
updateControlsGeometry();
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}
_resetAccount->show(anim::type::normal);
if (_changeLanguage) _changeLanguage->hide(anim::type::normal);
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}
void Widget::resetAccount() {
if (_resetRequest) return;
Ui::show(Box<ConfirmBox>(lang(lng_signin_sure_reset), lang(lng_signin_reset), st::attentionBoxButton, base::lambda_guarded(this, [this] {
if (_resetRequest) return;
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_resetRequest = request(MTPaccount_DeleteAccount(MTP_string("Forgot password"))).done([this](const MTPBool &result) {
_resetRequest = 0;
Ui::hideLayer();
moveToStep(new SignupWidget(this, getData()), Direction::Replace);
}).fail([this](const RPCError &error) {
_resetRequest = 0;
auto type = error.type();
if (type.startsWith(qstr("2FA_CONFIRM_WAIT_"))) {
auto seconds = type.mid(qstr("2FA_CONFIRM_WAIT_").size()).toInt();
auto days = (seconds + 59) / 86400;
auto hours = ((seconds + 59) % 86400) / 3600;
auto minutes = ((seconds + 59) % 3600) / 60;
auto when = lng_signin_reset_minutes(lt_count, minutes);
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if (days > 0) {
auto daysCount = lng_signin_reset_days(lt_count, days);
auto hoursCount = lng_signin_reset_hours(lt_count, hours);
when = lng_signin_reset_in_days(lt_days_count, daysCount, lt_hours_count, hoursCount, lt_minutes_count, when);
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} else if (hours > 0) {
auto hoursCount = lng_signin_reset_hours(lt_count, hours);
when = lng_signin_reset_in_hours(lt_hours_count, hoursCount, lt_minutes_count, when);
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}
Ui::show(Box<InformBox>(lng_signin_reset_wait(lt_phone_number, App::formatPhone(getData()->phone), lt_when, when)));
} else if (type == qstr("2FA_RECENT_CONFIRM")) {
Ui::show(Box<InformBox>(lang(lng_signin_reset_cancelled)));
} else {
Ui::hideLayer();
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getStep()->showError(&Lang::Hard::ServerError);
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}
}).send();
})));
}
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void Widget::getNearestDC() {
request(MTPhelp_GetNearestDc()).done([this](const MTPNearestDc &result) {
auto &nearest = result.c_nearestDc();
DEBUG_LOG(("Got nearest dc, country: %1, nearest: %2, this: %3").arg(qs(nearest.vcountry)).arg(nearest.vnearest_dc.v).arg(nearest.vthis_dc.v));
Messenger::Instance().suggestMainDcId(nearest.vnearest_dc.v);
auto nearestCountry = qs(nearest.vcountry);
if (getData()->country != nearestCountry) {
getData()->country = nearestCountry;
getData()->updated.notify();
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}
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}).send();
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}
void Widget::showControls() {
getStep()->show();
_next->show();
_next->setText([this] { return getStep()->nextButtonText(); });
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_connecting->setForceHidden(false);
auto hasCover = getStep()->hasCover();
_settings->toggle(!hasCover, anim::type::instant);
if (_update) _update->toggle(!hasCover, anim::type::instant);
if (_changeLanguage) _changeLanguage->toggle(!_resetAccount, anim::type::instant);
_back->toggle(getStep()->hasBack(), anim::type::instant);
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}
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void Widget::hideControls() {
getStep()->hide();
_next->hide();
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_connecting->setForceHidden(true);
_settings->hide(anim::type::instant);
if (_update) _update->hide(anim::type::instant);
if (_changeLanguage) _changeLanguage->hide(anim::type::instant);
_back->hide(anim::type::instant);
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}
void Widget::showAnimated(const QPixmap &bgAnimCache, bool back) {
_showBack = back;
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(_showBack ? _cacheOver : _cacheUnder) = bgAnimCache;
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_a_show.finish();
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showControls();
(_showBack ? _cacheUnder : _cacheOver) = Ui::GrabWidget(this);
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hideControls();
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_a_show.start([this] { animationCallback(); }, 0., 1., st::slideDuration, Window::SlideAnimation::transition());
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show();
}
void Widget::animationCallback() {
update();
if (!_a_show.animating()) {
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_cacheUnder = _cacheOver = QPixmap();
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showControls();
getStep()->activate();
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}
}
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void Widget::paintEvent(QPaintEvent *e) {
bool trivial = (rect() == e->rect());
setMouseTracking(true);
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if (_coverShownAnimation.animating()) {
_coverShownAnimation.step(getms());
}
QPainter p(this);
if (!trivial) {
p.setClipRect(e->rect());
}
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p.fillRect(e->rect(), st::windowBg);
auto progress = _a_show.current(getms(), 1.);
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if (_a_show.animating()) {
auto coordUnder = _showBack ? anim::interpolate(-st::slideShift, 0, progress) : anim::interpolate(0, -st::slideShift, progress);
auto coordOver = _showBack ? anim::interpolate(0, width(), progress) : anim::interpolate(width(), 0, progress);
auto shadow = _showBack ? (1. - progress) : progress;
if (coordOver > 0) {
p.drawPixmap(QRect(0, 0, coordOver, height()), _cacheUnder, QRect(-coordUnder * cRetinaFactor(), 0, coordOver * cRetinaFactor(), height() * cRetinaFactor()));
p.setOpacity(shadow);
p.fillRect(0, 0, coordOver, height(), st::slideFadeOutBg);
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p.setOpacity(1);
}
p.drawPixmap(coordOver, 0, _cacheOver);
p.setOpacity(shadow);
st::slideShadow.fill(p, QRect(coordOver - st::slideShadow.width(), 0, st::slideShadow.width(), height()));
}
}
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QRect Widget::calculateStepRect() const {
auto stepInnerTop = (height() - st::introHeight) / 2;
accumulate_max(stepInnerTop, st::introStepTopMin);
auto nextTop = stepInnerTop + st::introStepHeight;
auto additionalHeight = st::introStepHeightAdd;
auto stepWidth = width();
auto stepHeight = nextTop + additionalHeight;
return QRect(0, 0, stepWidth, stepHeight);
}
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void Widget::resizeEvent(QResizeEvent *e) {
auto stepRect = calculateStepRect();
for_const (auto step, _stepHistory) {
step->setGeometry(stepRect);
}
updateControlsGeometry();
}
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void Widget::updateControlsGeometry() {
auto shown = _coverShownAnimation.current(1.);
auto controlsTopTo = getStep()->hasCover() ? st::introCoverHeight : 0;
auto controlsTop = anim::interpolate(_controlsTopFrom, controlsTopTo, shown);
_settings->moveToRight(st::introSettingsSkip, controlsTop + st::introSettingsSkip);
if (_update) {
_update->moveToRight(st::introSettingsSkip + _settings->width() + st::introSettingsSkip, _settings->y());
}
_back->moveToLeft(0, controlsTop);
auto nextTopTo = getStep()->contentTop() + st::introStepHeight;
auto nextTop = anim::interpolate(_nextTopFrom, nextTopTo, shown);
_next->moveToLeft((width() - _next->width()) / 2, nextTop);
if (_changeLanguage) {
_changeLanguage->moveToLeft((width() - _changeLanguage->width()) / 2, _next->y() + _next->height() + _changeLanguage->height());
}
if (_resetAccount) {
_resetAccount->moveToLeft((width() - _resetAccount->width()) / 2, height() - st::introResetBottom - _resetAccount->height());
}
}
void Widget::keyPressEvent(QKeyEvent *e) {
if (_a_show.animating() || getStep()->animating()) return;
if (e->key() == Qt::Key_Escape) {
if (getStep()->hasBack()) {
historyMove(Direction::Back);
}
} else if (e->key() == Qt::Key_Enter || e->key() == Qt::Key_Return || e->key() == Qt::Key_Space) {
getStep()->submit();
}
}
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Widget::~Widget() {
for (auto step : base::take(_stepHistory)) {
delete step;
}
if (App::wnd()) App::wnd()->noIntro(this);
}
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QString Widget::Step::nextButtonText() const {
return lang(lng_intro_next);
}
void Widget::Step::finish(const MTPUser &user, QImage &&photo) {
if (user.type() != mtpc_user || !user.c_user().is_self()) {
// No idea what to do here.
// We could've reset intro and MTP, but this really should not happen.
Ui::show(Box<InformBox>("Internal error: bad user.is_self() after sign in."));
return;
}
// Save the default language if we've suggested some other and user ignored it.
auto currentId = Lang::Current().id();
auto defaultId = Lang::DefaultLanguageId();
auto suggestedId = Lang::CurrentCloudManager().suggestedLanguage();
if (currentId.isEmpty() && !suggestedId.isEmpty() && suggestedId != defaultId) {
Lang::Current().switchToId(defaultId);
Local::writeLangPack();
}
Messenger::Instance().authSessionCreate(user.c_user().vid.v);
Local::writeMtpData();
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App::wnd()->setupMain(&user);
// "this" is already deleted here by creating the main widget.
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if (auto user = App::self()) {
Auth().api().requestFullPeer(user);
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}
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if (!photo.isNull()) {
Messenger::Instance().uploadProfilePhoto(
std::move(photo),
Auth().userId());
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}
}
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void Widget::Step::paintEvent(QPaintEvent *e) {
Painter p(this);
paintAnimated(p, e->rect());
}
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void Widget::Step::resizeEvent(QResizeEvent *e) {
updateLabelsPosition();
}
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void Widget::Step::updateLabelsPosition() {
Ui::SendPendingMoveResizeEvents(_description->entity());
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if (hasCover()) {
_title->moveToLeft((width() - _title->width()) / 2, contentTop() + st::introCoverTitleTop);
_description->moveToLeft((width() - _description->width()) / 2, contentTop() + st::introCoverDescriptionTop);
} else {
_title->moveToLeft(contentLeft() + st::buttonRadius, contentTop() + st::introTitleTop);
_description->moveToLeft(contentLeft() + st::buttonRadius, contentTop() + st::introDescriptionTop);
}
if (_error) {
if (_errorCentered) {
_error->entity()->resizeToWidth(width());
}
Ui::SendPendingMoveResizeEvents(_error->entity());
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auto errorLeft = _errorCentered ? 0 : (contentLeft() + st::buttonRadius);
auto errorTop = contentTop() + (_errorBelowLink ? st::introErrorBelowLinkTop : st::introErrorTop);
_error->moveToLeft(errorLeft, errorTop);
}
}
void Widget::Step::setTitleText(base::lambda<QString()> richTitleTextFactory) {
_titleTextFactory = std::move(richTitleTextFactory);
refreshTitle();
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updateLabelsPosition();
}
void Widget::Step::refreshTitle() {
_title->setRichText(_titleTextFactory());
}
void Widget::Step::setDescriptionText(base::lambda<QString()> richDescriptionTextFactory) {
_descriptionTextFactory = std::move(richDescriptionTextFactory);
refreshDescription();
updateLabelsPosition();
}
void Widget::Step::refreshDescription() {
_description->entity()->setRichText(_descriptionTextFactory());
}
void Widget::Step::refreshLang() {
refreshTitle();
refreshDescription();
refreshError();
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updateLabelsPosition();
}
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void Widget::Step::showFinished() {
_a_show.finish();
_coverAnimation = CoverAnimation();
_slideAnimation.reset();
prepareCoverMask();
activate();
}
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bool Widget::Step::paintAnimated(Painter &p, QRect clip) {
if (_slideAnimation) {
_slideAnimation->paintFrame(p, (width() - st::introStepWidth) / 2, contentTop(), width(), getms());
if (!_slideAnimation->animating()) {
showFinished();
return false;
}
return true;
}
auto dt = _a_show.current(getms(), 1.);
if (!_a_show.animating()) {
if (hasCover()) {
paintCover(p, 0);
}
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if (_coverAnimation.title) {
showFinished();
}
if (!QRect(0, contentTop(), width(), st::introStepHeight).intersects(clip)) {
return true;
}
return false;
}
auto progress = (hasCover() ? anim::easeOutCirc(1., dt) : anim::linear(1., dt));
auto arrivingAlpha = progress;
auto departingAlpha = 1. - progress;
auto showCoverMethod = progress;
auto hideCoverMethod = progress;
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auto coverTop = (hasCover() ? anim::interpolate(-st::introCoverHeight, 0, showCoverMethod) : anim::interpolate(0, -st::introCoverHeight, hideCoverMethod));
paintCover(p, coverTop);
auto positionReady = hasCover() ? showCoverMethod : hideCoverMethod;
_coverAnimation.title->paintFrame(p, positionReady, departingAlpha, arrivingAlpha);
_coverAnimation.description->paintFrame(p, positionReady, departingAlpha, arrivingAlpha);
paintContentSnapshot(p, _coverAnimation.contentSnapshotWas, departingAlpha, showCoverMethod);
paintContentSnapshot(p, _coverAnimation.contentSnapshotNow, arrivingAlpha, 1. - hideCoverMethod);
return true;
}
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void Widget::Step::fillSentCodeData(const MTPauth_SentCodeType &type) {
switch (type.type()) {
case mtpc_auth_sentCodeTypeApp: {
getData()->codeByTelegram = true;
getData()->codeLength = type.c_auth_sentCodeTypeApp().vlength.v;
} break;
case mtpc_auth_sentCodeTypeSms: {
getData()->codeByTelegram = false;
getData()->codeLength = type.c_auth_sentCodeTypeSms().vlength.v;
} break;
case mtpc_auth_sentCodeTypeCall: {
getData()->codeByTelegram = false;
getData()->codeLength = type.c_auth_sentCodeTypeCall().vlength.v;
} break;
case mtpc_auth_sentCodeTypeFlashCall: LOG(("Error: should not be flashcall!")); break;
}
}
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void Widget::Step::showDescription() {
_description->show(anim::type::normal);
}
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void Widget::Step::hideDescription() {
_description->hide(anim::type::normal);
}
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void Widget::Step::paintContentSnapshot(Painter &p, const QPixmap &snapshot, float64 alpha, float64 howMuchHidden) {
if (!snapshot.isNull()) {
auto contentTop = anim::interpolate(height() - (snapshot.height() / cIntRetinaFactor()), height(), howMuchHidden);
if (contentTop < height()) {
p.setOpacity(alpha);
p.drawPixmap(QPoint(contentLeft(), contentTop), snapshot, QRect(0, 0, snapshot.width(), (height() - contentTop) * cIntRetinaFactor()));
}
}
}
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void Widget::Step::prepareCoverMask() {
if (!_coverMask.isNull()) return;
auto maskWidth = cIntRetinaFactor();
auto maskHeight = st::introCoverHeight * cIntRetinaFactor();
auto mask = QImage(maskWidth, maskHeight, QImage::Format_ARGB32_Premultiplied);
auto maskInts = reinterpret_cast<uint32*>(mask.bits());
Assert(mask.depth() == (sizeof(uint32) << 3));
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auto maskIntsPerLineAdded = (mask.bytesPerLine() >> 2) - maskWidth;
Assert(maskIntsPerLineAdded >= 0);
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auto realHeight = static_cast<float64>(maskHeight - 1);
for (auto y = 0; y != maskHeight; ++y) {
auto color = anim::color(st::introCoverTopBg, st::introCoverBottomBg, y / realHeight);
auto colorInt = anim::getPremultiplied(color);
for (auto x = 0; x != maskWidth; ++x) {
*maskInts++ = colorInt;
}
maskInts += maskIntsPerLineAdded;
}
_coverMask = App::pixmapFromImageInPlace(std::move(mask));
}
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void Widget::Step::paintCover(Painter &p, int top) {
auto coverHeight = top + st::introCoverHeight;
if (coverHeight > 0) {
p.drawPixmap(QRect(0, 0, width(), coverHeight), _coverMask, QRect(0, -top * cIntRetinaFactor(), _coverMask.width(), coverHeight * cIntRetinaFactor()));
}
auto left = 0;
auto right = 0;
if (width() < st::introCoverMaxWidth) {
auto iconsMaxSkip = st::introCoverMaxWidth - st::introCoverLeft.width() - st::introCoverRight.width();
auto iconsSkip = st::introCoverIconsMinSkip + (iconsMaxSkip - st::introCoverIconsMinSkip) * (width() - st::introStepWidth) / (st::introCoverMaxWidth - st::introStepWidth);
auto outside = iconsSkip + st::introCoverLeft.width() + st::introCoverRight.width() - width();
left = -outside / 2;
right = -outside - left;
}
if (top < 0) {
auto shown = float64(coverHeight) / st::introCoverHeight;
auto leftShown = qRound(shown * (left + st::introCoverLeft.width()));
left = leftShown - st::introCoverLeft.width();
auto rightShown = qRound(shown * (right + st::introCoverRight.width()));
right = rightShown - st::introCoverRight.width();
}
st::introCoverLeft.paint(p, left, coverHeight - st::introCoverLeft.height(), width());
st::introCoverRight.paint(p, width() - right - st::introCoverRight.width(), coverHeight - st::introCoverRight.height(), width());
auto planeLeft = (width() - st::introCoverIcon.width()) / 2 - st::introCoverIconLeft;
auto planeTop = top + st::introCoverIconTop;
if (top < 0 && !_hasCover) {
auto deltaLeft = -qRound(float64(st::introPlaneWidth / st::introPlaneHeight) * top);
// auto deltaTop = top;
planeLeft += deltaLeft;
// planeTop += top;
}
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st::introCoverIcon.paint(p, planeLeft, planeTop, width());
}
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int Widget::Step::contentLeft() const {
return (width() - st::introNextButton.width) / 2;
}
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int Widget::Step::contentTop() const {
auto result = height() - st::introStepHeight - st::introStepHeightAdd;
if (_hasCover) {
auto added = 1. - snap(float64(height() - st::windowMinHeight) / (st::introStepHeightFull - st::windowMinHeight), 0., 1.);
result += qRound(added * st::introStepHeightAdd);
}
return result;
}
void Widget::Step::setErrorCentered(bool centered) {
_errorCentered = centered;
_error.destroy();
}
void Widget::Step::setErrorBelowLink(bool below) {
_errorBelowLink = below;
if (_error) {
updateLabelsPosition();
}
}
void Widget::Step::showError(base::lambda<QString()> textFactory) {
_errorTextFactory = std::move(textFactory);
refreshError();
updateLabelsPosition();
}
void Widget::Step::refreshError() {
if (!_errorTextFactory) {
if (_error) _error->hide(anim::type::normal);
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} else {
if (!_error) {
_error.create(
this,
object_ptr<Ui::FlatLabel>(
this,
_errorCentered
? st::introErrorCentered
: st::introError));
_error->hide(anim::type::instant);
}
_error->entity()->setText(_errorTextFactory());
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updateLabelsPosition();
_error->show(anim::type::normal);
}
}
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Widget::Step::Step(QWidget *parent, Data *data, bool hasCover) : TWidget(parent)
, _data(data)
, _hasCover(hasCover)
, _title(this, _hasCover ? st::introCoverTitle : st::introTitle)
, _description(
this,
object_ptr<Ui::FlatLabel>(
this,
_hasCover
? st::introCoverDescription
: st::introDescription)) {
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hide();
subscribe(Window::Theme::Background(), [this](
const Window::Theme::BackgroundUpdate &update) {
if (update.paletteChanged()) {
if (!_coverMask.isNull()) {
_coverMask = QPixmap();
prepareCoverMask();
}
}
});
subscribe(Lang::Current().updated(), [this] { refreshLang(); });
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}
void Widget::Step::prepareShowAnimated(Step *after) {
setInnerFocus();
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if (hasCover() || after->hasCover()) {
_coverAnimation = prepareCoverAnimation(after);
prepareCoverMask();
} else {
auto leftSnapshot = after->prepareSlideAnimation();
auto rightSnapshot = prepareSlideAnimation();
_slideAnimation = std::make_unique<Ui::SlideAnimation>();
_slideAnimation->setSnapshots(std::move(leftSnapshot), std::move(rightSnapshot));
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_slideAnimation->setOverflowHidden(false);
}
}
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Widget::Step::CoverAnimation Widget::Step::prepareCoverAnimation(Step *after) {
auto result = CoverAnimation();
result.title = Ui::FlatLabel::CrossFade(
after->_title,
_title,
st::introBg);
result.description = Ui::FlatLabel::CrossFade(
after->_description->entity(),
_description->entity(),
st::introBg,
after->_description->pos(),
_description->pos());
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result.contentSnapshotWas = after->prepareContentSnapshot();
result.contentSnapshotNow = prepareContentSnapshot();
return result;
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}
QPixmap Widget::Step::prepareContentSnapshot() {
auto otherTop = _description->y() + _description->height();
auto otherRect = myrtlrect(contentLeft(), otherTop, st::introStepWidth, height() - otherTop);
return Ui::GrabWidget(this, otherRect);
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}
QPixmap Widget::Step::prepareSlideAnimation() {
auto grabLeft = (width() - st::introStepWidth) / 2;
auto grabTop = contentTop();
return Ui::GrabWidget(
this,
QRect(grabLeft, grabTop, st::introStepWidth, st::introStepHeight));
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}
void Widget::Step::showAnimated(Direction direction) {
setFocus();
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show();
hideChildren();
if (_slideAnimation) {
auto slideLeft = (direction == Direction::Back);
_slideAnimation->start(slideLeft, [this] { update(0, contentTop(), width(), st::introStepHeight); }, st::introSlideDuration);
} else {
_a_show.start([this] { update(); }, 0., 1., st::introCoverDuration);
}
}
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void Widget::Step::setGoCallback(base::lambda<void(Step *step, Direction direction)> callback) {
_goCallback = std::move(callback);
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}
void Widget::Step::setShowResetCallback(base::lambda<void()> callback) {
_showResetCallback = std::move(callback);
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}
void Widget::Step::showFast() {
show();
showFinished();
}
bool Widget::Step::animating() const {
return (_slideAnimation && _slideAnimation->animating()) || _a_show.animating();
}
bool Widget::Step::hasCover() const {
return _hasCover;
}
bool Widget::Step::hasBack() const {
return false;
}
void Widget::Step::activate() {
_title->show();
_description->show(anim::type::instant);
if (_errorTextFactory) {
_error->show(anim::type::instant);
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}
}
void Widget::Step::cancelled() {
}
void Widget::Step::finished() {
hide();
}
Widget::Step::CoverAnimation::~CoverAnimation() = default;
Widget::Step::~Step() = default;
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} // namespace Intro