tdesktop/Telegram/SourceFiles/intro/introwidget.cpp

760 lines
24 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 "intro/introwidget.h"
#include "lang.h"
#include "storage/localstorage.h"
#include "langloaderplain.h"
#include "intro/introstart.h"
#include "intro/introphone.h"
#include "intro/introcode.h"
#include "intro/introsignup.h"
#include "intro/intropwdcheck.h"
#include "mainwidget.h"
#include "mainwindow.h"
#include "messenger.h"
#include "application.h"
#include "boxes/confirm_box.h"
#include "ui/text/text.h"
#include "ui/widgets/buttons.h"
#include "ui/widgets/labels.h"
#include "ui/effects/widget_fade_wrap.h"
#include "ui/effects/slide_animation.h"
#include "autoupdater.h"
#include "window/window_slide_animation.h"
#include "styles/style_boxes.h"
#include "styles/style_intro.h"
#include "styles/style_window.h"
#include "window/themes/window_theme.h"
#include "auth_session.h"
namespace Intro {
Widget::Widget(QWidget *parent) : TWidget(parent)
, _back(this, object_ptr<Ui::IconButton>(this, st::introBackButton), st::introSlideDuration)
, _settings(this, object_ptr<Ui::RoundButton>(this, lang(lng_menu_settings), st::defaultBoxButton), st::introCoverDuration)
, _next(this, QString(), st::introNextButton) {
getData()->country = psCurrentCountry();
_back->entity()->setClickedCallback([this] { historyMove(Direction::Back); });
_back->hideFast();
_next->setClickedCallback([this] { getStep()->submit(); });
_settings->entity()->setClickedCallback([] { App::wnd()->showSettings(); });
if (cLang() == languageDefault) {
auto systemLangId = Sandbox::LangSystem();
if (systemLangId != languageDefault) {
LangLoaderPlain loader(qsl(":/langs/lang_") + LanguageCodes[systemLangId].c_str() + qsl(".strings"), langLoaderRequest(lng_switch_to_this));
QString text = loader.found().value(lng_switch_to_this);
if (!text.isEmpty()) {
_changeLanguage.create(this, object_ptr<Ui::LinkButton>(this, text), st::introCoverDuration);
_changeLanguage->entity()->setClickedCallback([this, systemLangId] { changeLanguage(systemLangId); });
}
}
} else {
_changeLanguage.create(this, object_ptr<Ui::LinkButton>(this, langOriginal(lng_switch_to_this)), st::introCoverDuration);
_changeLanguage->entity()->setClickedCallback([this] { changeLanguage(languageDefault); });
}
MTP::send(MTPhelp_GetNearestDc(), rpcDone(&Widget::gotNearestDC));
appendStep(new StartWidget(this, getData()));
fixOrder();
show();
showControls();
getStep()->showFast();
cSetPasswordRecovered(false);
#ifndef TDESKTOP_DISABLE_AUTOUPDATE
Sandbox::connect(SIGNAL(updateLatest()), this, SLOT(onCheckUpdateStatus()));
Sandbox::connect(SIGNAL(updateFailed()), this, SLOT(onCheckUpdateStatus()));
Sandbox::connect(SIGNAL(updateReady()), this, SLOT(onCheckUpdateStatus()));
Sandbox::startUpdateCheck();
onCheckUpdateStatus();
#endif // !TDESKTOP_DISABLE_AUTOUPDATE
}
#ifndef TDESKTOP_DISABLE_AUTOUPDATE
void Widget::onCheckUpdateStatus() {
if (Sandbox::updatingState() == Application::UpdatingReady) {
if (_update) return;
_update.create(this, object_ptr<Ui::RoundButton>(this, lang(lng_menu_update).toUpper(), st::defaultBoxButton), st::introCoverDuration);
if (!_a_show.animating()) _update->show();
_update->entity()->setClickedCallback([] {
checkReadyUpdate();
App::restart();
});
} else {
if (!_update) return;
_update.destroy();
}
updateControlsGeometry();
}
#endif // TDESKTOP_DISABLE_AUTOUPDATE
void Widget::changeLanguage(int32 languageId) {
cSetLang(languageId);
Local::writeSettings();
App::restart();
}
void Widget::setInnerFocus() {
if (getStep()->animating()) {
setFocus();
} else {
getStep()->setInnerFocus();
}
}
void Widget::historyMove(Direction direction) {
if (getStep()->animating()) return;
t_assert(_stepHistory.size() > 1);
auto wasStep = getStep((direction == Direction::Back) ? 0 : 1);
if (direction == Direction::Back) {
_stepHistory.pop_back();
wasStep->cancelled();
} else if (direction == Direction::Replace) {
_stepHistory.removeAt(_stepHistory.size() - 2);
}
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);
}
if (direction == Direction::Forward || direction == Direction::Replace) {
wasStep->finished();
}
if (direction == Direction::Back || direction == Direction::Replace) {
delete base::take(wasStep);
}
_back->toggleAnimated(getStep()->hasBack());
auto stepHasCover = getStep()->hasCover();
_settings->toggleAnimated(!stepHasCover);
if (_update) _update->toggleAnimated(!stepHasCover);
if (_changeLanguage) _changeLanguage->toggleAnimated(stepHasCover);
_next->setText(getStep()->nextButtonText());
if (_resetAccount) _resetAccount->hideAnimated();
getStep()->showAnimated(direction);
fixOrder();
}
void Widget::fixOrder() {
_next->raise();
if (_update) _update->raise();
_settings->raise();
_back->raise();
}
void Widget::moveToStep(Step *step, Direction direction) {
appendStep(step);
_back->raise();
_settings->raise();
if (_update) {
_update->raise();
}
historyMove(direction);
}
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, lang(lng_signin_reset_account), st::introResetButton);
_resetAccount.create(this, std::move(entity), st::introErrorDuration);
_resetAccount->hideFast();
_resetAccount->entity()->setClickedCallback([this] { resetAccount(); });
updateControlsGeometry();
}
_resetAccount->showAnimated();
}
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;
_resetRequest = MTP::send(MTPaccount_DeleteAccount(MTP_string("Forgot password")), rpcDone(&Widget::resetDone), rpcFail(&Widget::resetFail));
})));
}
void Widget::resetDone(const MTPBool &result) {
Ui::hideLayer();
moveToStep(new SignupWidget(this, getData()), Direction::Replace);
}
bool Widget::resetFail(const RPCError &error) {
if (MTP::isDefaultHandledError(error)) return false;
_resetRequest = 0;
auto type = error.type();
if (type.startsWith(qstr("2FA_CONFIRM_WAIT_"))) {
int seconds = type.mid(qstr("2FA_CONFIRM_WAIT_").size()).toInt();
int days = (seconds + 59) / 86400;
int hours = ((seconds + 59) % 86400) / 3600;
int minutes = ((seconds + 59) % 3600) / 60;
QString when;
if (days > 0) {
when = lng_signin_reset_in_days(lt_count_days, days, lt_count_hours, hours, lt_count_minutes, minutes);
} else if (hours > 0) {
when = lng_signin_reset_in_hours(lt_count_hours, hours, lt_count_minutes, minutes);
} else {
when = lng_signin_reset_in_minutes(lt_count_minutes, minutes);
}
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();
getStep()->showError(lang(lng_server_error));
}
return true;
}
void Widget::gotNearestDC(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();
}
}
void Widget::showControls() {
getStep()->show();
_next->show();
_next->setText(getStep()->nextButtonText());
auto hasCover = getStep()->hasCover();
_settings->toggleFast(!hasCover);
if (_update) _update->toggleFast(!hasCover);
if (_changeLanguage) _changeLanguage->toggleFast(hasCover);
_back->toggleFast(getStep()->hasBack());
}
void Widget::hideControls() {
getStep()->hide();
_next->hide();
_settings->hideFast();
if (_update) _update->hideFast();
if (_changeLanguage) _changeLanguage->hideFast();
_back->hideFast();
}
void Widget::showAnimated(const QPixmap &bgAnimCache, bool back) {
_showBack = back;
(_showBack ? _cacheOver : _cacheUnder) = bgAnimCache;
_a_show.finish();
showControls();
(_showBack ? _cacheUnder : _cacheOver) = myGrab(this);
hideControls();
_a_show.start([this] { animationCallback(); }, 0., 1., st::slideDuration, Window::SlideAnimation::transition());
show();
}
void Widget::animationCallback() {
update();
if (!_a_show.animating()) {
_cacheUnder = _cacheOver = QPixmap();
showControls();
getStep()->activate();
}
}
void Widget::paintEvent(QPaintEvent *e) {
bool trivial = (rect() == e->rect());
setMouseTracking(true);
if (_coverShownAnimation.animating()) {
_coverShownAnimation.step(getms());
}
QPainter p(this);
if (!trivial) {
p.setClipRect(e->rect());
}
p.fillRect(e->rect(), st::windowBg);
auto progress = _a_show.current(getms(), 1.);
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);
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()));
}
}
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);
}
void Widget::resizeEvent(QResizeEvent *e) {
auto stepRect = calculateStepRect();
for_const (auto step, _stepHistory) {
step->setGeometry(stepRect);
}
updateControlsGeometry();
}
void Widget::moveControls() {
}
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();
}
}
Widget::~Widget() {
for (auto step : base::take(_stepHistory)) {
delete step;
}
if (App::wnd()) App::wnd()->noIntro(this);
}
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;
}
Messenger::Instance().authSessionCreate(user.c_user().vid.v);
Local::writeMtpData();
App::wnd()->setupMain(&user);
// "this" is already deleted here by creating the main widget.
if (!photo.isNull()) {
App::app()->uploadProfilePhoto(photo, AuthSession::CurrentUserId());
}
}
void Widget::Step::paintEvent(QPaintEvent *e) {
Painter p(this);
paintAnimated(p, e->rect());
}
void Widget::Step::resizeEvent(QResizeEvent *e) {
updateLabelsPosition();
}
void Widget::Step::updateLabelsPosition() {
myEnsureResized(_description->entity());
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());
}
myEnsureResized(_error->entity());
auto errorLeft = _errorCentered ? 0 : (contentLeft() + st::buttonRadius);
auto errorTop = contentTop() + (_errorBelowLink ? st::introErrorBelowLinkTop : st::introErrorTop);
_error->moveToLeft(errorLeft, errorTop);
}
}
void Widget::Step::setTitleText(QString richText) {
_title->setRichText(richText);
updateLabelsPosition();
}
void Widget::Step::setDescriptionText(QString richText) {
_description->entity()->setRichText(richText);
updateLabelsPosition();
}
void Widget::Step::showFinished() {
_a_show.finish();
_coverAnimation = CoverAnimation();
_slideAnimation.reset();
prepareCoverMask();
activate();
}
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 guard = base::scope_guard([this, &p] {
if (hasCover()) paintCover(p, 0);
});
auto dt = _a_show.current(getms(), 1.);
if (!_a_show.animating()) {
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;
auto coverTop = (hasCover() ? anim::interpolate(-st::introCoverHeight, 0, showCoverMethod) : anim::interpolate(0, -st::introCoverHeight, hideCoverMethod));
paintCover(p, coverTop);
guard.dismiss();
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;
}
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;
}
}
void Widget::Step::showDescription() {
_description->showAnimated();
}
void Widget::Step::hideDescription() {
_description->hideAnimated();
}
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()));
}
}
}
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());
t_assert(mask.depth() == (sizeof(uint32) << 3));
auto maskIntsPerLineAdded = (mask.bytesPerLine() >> 2) - maskWidth;
t_assert(maskIntsPerLineAdded >= 0);
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));
}
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;
}
st::introCoverIcon.paint(p, planeLeft, planeTop, width());
}
int Widget::Step::contentLeft() const {
return (width() - st::introNextButton.width) / 2;
}
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(const QString &text) {
_errorText = text;
if (_errorText.isEmpty()) {
if (_error) _error->hideAnimated();
} else {
if (!_error) {
_error.create(this, object_ptr<Ui::FlatLabel>(this, _errorCentered ? st::introErrorCentered : st::introError), st::introErrorDuration);
_error->hideFast();
}
_error->entity()->setText(text);
updateLabelsPosition();
_error->showAnimated();
}
}
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), st::introErrorDuration) {
hide();
subscribe(Window::Theme::Background(), [this](const Window::Theme::BackgroundUpdate &update) {
if (update.paletteChanged()) {
if (!_coverMask.isNull()) {
_coverMask = QPixmap();
prepareCoverMask();
}
}
});
}
void Widget::Step::prepareShowAnimated(Step *after) {
setInnerFocus();
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));
_slideAnimation->setOverflowHidden(false);
}
}
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());
result.contentSnapshotWas = after->prepareContentSnapshot();
result.contentSnapshotNow = prepareContentSnapshot();
return result;
}
QPixmap Widget::Step::prepareContentSnapshot() {
auto otherTop = _description->y() + _description->height();
auto otherRect = myrtlrect(contentLeft(), otherTop, st::introStepWidth, height() - otherTop);
return myGrab(this, otherRect);
}
QPixmap Widget::Step::prepareSlideAnimation() {
auto grabLeft = (width() - st::introStepWidth) / 2;
auto grabTop = contentTop();
return myGrab(this, QRect(grabLeft, grabTop, st::introStepWidth, st::introStepHeight));
}
void Widget::Step::showAnimated(Direction direction) {
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);
}
}
void Widget::Step::setGoCallback(base::lambda<void(Step *step, Direction direction)> callback) {
_goCallback = std::move(callback);
}
void Widget::Step::setShowResetCallback(base::lambda<void()> callback) {
_showResetCallback = std::move(callback);
}
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();
if (!_errorText.isEmpty()) {
_error->showFast();
}
}
void Widget::Step::cancelled() {
}
void Widget::Step::finished() {
hide();
}
Widget::Step::CoverAnimation::~CoverAnimation() = default;
Widget::Step::~Step() = default;
} // namespace Intro