Rename some Ui methods.

myEnsureResized -> Ui::SendPendingMoveResizeEvents.
myGrab -> Ui::GrabWidget.
myGrabImage -> Ui::GrabWidgetToImage.

Telegram/SourceFiles/boxes/abstract_box.cpp

@@ -169,7 +169,7 @@ QPixmap BoxContent::grabInnerCache() {
 	auto isBottomShadowVisible = !_bottomShadow->isHidden();
 	if (isTopShadowVisible) _topShadow->setVisible(false);
 	if (isBottomShadowVisible) _bottomShadow->setVisible(false);
-	auto result = myGrab(this, _scroll->geometry());
+	auto result = Ui::GrabWidget(this, _scroll->geometry());
 	if (isTopShadowVisible) _topShadow->setVisible(true);
 	if (isBottomShadowVisible) _bottomShadow->setVisible(true);
 	return result;

Telegram/SourceFiles/boxes/peer_list_box.cpp

@@ -104,7 +104,7 @@ void PeerListBox::prepare() {
 	setDimensions(st::boxWideWidth, st::boxMaxListHeight);
 	if (_select) {
 		_select->finishAnimating();
-		myEnsureResized(_select);
+		Ui::SendPendingMoveResizeEvents(_select);
 		_scrollBottomFixed = true;
 		onScrollToY(0);
 	}

Telegram/SourceFiles/boxes/share_box.cpp

@@ -52,7 +52,7 @@ ShareBox::ShareBox(QWidget*, CopyCallback &&copyCallback, SubmitCallback &&submi
 
 void ShareBox::prepare() {
 	_select->resizeToWidth(st::boxWideWidth);
-	myEnsureResized(_select);
+	Ui::SendPendingMoveResizeEvents(_select);
 
 	setTitle(langFactory(lng_share_title));
 

Telegram/SourceFiles/calls/calls_panel.cpp

@@ -388,10 +388,15 @@ void Panel::toggleOpacityAnimation(bool visible) {
 	if (_useTransparency) {
 		if (_animationCache.isNull()) {
 			showControls();
-			_animationCache = myGrab(this);
+			_animationCache = Ui::GrabWidget(this);
 			hideChildren();
 		}
-		_opacityAnimation.start([this] { update(); }, _visible ? 0. : 1., _visible ? 1. : 0., st::callPanelDuration, _visible ? anim::easeOutCirc : anim::easeInCirc);
+		_opacityAnimation.start(
+			[this] { update(); },
+			_visible ? 0. : 1.,
+			_visible ? 1. : 0.,
+			st::callPanelDuration,
+			_visible ? anim::easeOutCirc : anim::easeInCirc);
 	}
 	if (isHidden() && _visible) {
 		show();

Telegram/SourceFiles/chat_helpers/emoji_list_widget.cpp

@@ -250,7 +250,7 @@ void EmojiColorPicker::hideFast() {
 
 void EmojiColorPicker::hideAnimated() {
 	if (_cache.isNull()) {
-		_cache = myGrab(this);
+		_cache = Ui::GrabWidget(this);
 		clearSelection();
 	}
 	_hiding = true;
@@ -265,7 +265,7 @@ void EmojiColorPicker::showAnimated() {
 	}
 	_hiding = false;
 	if (_cache.isNull()) {
-		_cache = myGrab(this);
+		_cache = Ui::GrabWidget(this);
 		clearSelection();
 	}
 	show();

Telegram/SourceFiles/chat_helpers/field_autocomplete.cpp

@@ -408,7 +408,7 @@ void FieldAutocomplete::hideAnimated() {
 
 	if (_cache.isNull()) {
 		_scroll->show();
-		_cache = myGrab(this);
+		_cache = Ui::GrabWidget(this);
 	}
 	_scroll->hide();
 	_hiding = true;
@@ -429,7 +429,7 @@ void FieldAutocomplete::showAnimated() {
 	}
 	if (_cache.isNull()) {
 		_scroll->show();
-		_cache = myGrab(this);
+		_cache = Ui::GrabWidget(this);
 	}
 	_scroll->hide();
 	_hiding = false;

Telegram/SourceFiles/chat_helpers/tabbed_panel.cpp

@@ -255,7 +255,7 @@ void TabbedPanel::prepareCache() {
 	auto showAnimation = base::take(_a_show);
 	auto showAnimationData = base::take(_showAnimation);
 	showChildren();
-	_cache = myGrab(this);
+	_cache = Ui::GrabWidget(this);
 	_showAnimation = base::take(showAnimationData);
 	_a_show = base::take(showAnimation);
 	if (_a_show.animating()) {
@@ -296,7 +296,7 @@ QImage TabbedPanel::grabForAnimation() {
 	auto showAnimation = base::take(_a_show);
 
 	showChildren();
-	myEnsureResized(this);
+	Ui::SendPendingMoveResizeEvents(this);
 
 	auto result = QImage(size() * cIntRetinaFactor(), QImage::Format_ARGB32_Premultiplied);
 	result.setDevicePixelRatio(cRetinaFactor());

Telegram/SourceFiles/chat_helpers/tabbed_selector.cpp

@@ -489,7 +489,7 @@ QImage TabbedSelector::grabForAnimation() {
 	showAll();
 	_topShadow->hide();
 	_tabsSlider->hide();
-	myEnsureResized(this);
+	Ui::SendPendingMoveResizeEvents(this);
 
 	auto result = QImage(size() * cIntRetinaFactor(), QImage::Format_ARGB32_Premultiplied);
 	result.setDevicePixelRatio(cRetinaFactor());

Telegram/SourceFiles/dialogs/dialogs_widget.cpp

@@ -229,7 +229,7 @@ void DialogsWidget::startWidthAnimation() {
 		st::columnMinimalWidthLeft,
 		scrollGeometry.height());
 	_scroll->setGeometry(grabGeometry);
-	myEnsureResized(_scroll);
+	Ui::SendPendingMoveResizeEvents(_scroll);
 	auto image = QImage(
 		grabGeometry.size() * cIntRetinaFactor(),
 		QImage::Format_ARGB32_Premultiplied);

Telegram/SourceFiles/history/history_admin_log_section.cpp

@@ -294,7 +294,7 @@ not_null<ChannelData*> Widget::channel() const {
 
 QPixmap Widget::grabForShowAnimation(const Window::SectionSlideParams &params) {
 	if (params.withTopBarShadow) _fixedBarShadow->hide();
-	auto result = myGrab(this);
+	auto result = Ui::GrabWidget(this);
 	if (params.withTopBarShadow) _fixedBarShadow->show();
 	return result;
 }
@@ -319,7 +319,7 @@ bool Widget::showInternal(
 
 void Widget::setInternalState(const QRect &geometry, not_null<SectionMemento*> memento) {
 	setGeometry(geometry);
-	myEnsureResized(this);
+	Ui::SendPendingMoveResizeEvents(this);
 	restoreState(memento);
 }
 

Telegram/SourceFiles/history/history_drag_area.cpp

@@ -143,7 +143,9 @@ void DragArea::hideStart() {
 		return;
 	}
 	if (_cache.isNull()) {
-		_cache = myGrab(this, innerRect().marginsAdded(st::boxRoundShadow.extend));
+		_cache = Ui::GrabWidget(
+			this,
+			innerRect().marginsAdded(st::boxRoundShadow.extend));
 	}
 	_hiding = true;
 	setIn(false);
@@ -162,7 +164,9 @@ void DragArea::showStart() {
 	}
 	_hiding = false;
 	if (_cache.isNull()) {
-		_cache = myGrab(this, innerRect().marginsAdded(st::boxRoundShadow.extend));
+		_cache = Ui::GrabWidget(
+			this,
+			innerRect().marginsAdded(st::boxRoundShadow.extend));
 	}
 	show();
 	_a_opacity.start([this] { opacityAnimationCallback(); }, 0., 1., st::boxDuration);

Telegram/SourceFiles/history/history_widget.cpp

@@ -280,7 +280,7 @@ void HistoryHider::startHide() {
 	if (Adaptive::OneColumn()) {
 		QTimer::singleShot(0, this, SLOT(deleteLater()));
 	} else {
-		if (_offered) _cacheForAnim = myGrab(this, _box);
+		if (_offered) _cacheForAnim = Ui::GrabWidget(this, _box);
 		if (_forwardRequest) MTP::cancel(_forwardRequest);
 		_send->hide();
 		_cancel->hide();

Telegram/SourceFiles/info/common_groups/info_common_groups_widget.cpp

@@ -87,7 +87,7 @@ void Widget::setInternalState(
 		const QRect &geometry,
 		not_null<Memento*> memento) {
 	setGeometry(geometry);
-	myEnsureResized(this);
+	Ui::SendPendingMoveResizeEvents(this);
 	restoreState(memento);
 }
 

Telegram/SourceFiles/info/info_wrap_widget.cpp

@@ -652,7 +652,7 @@ QPixmap WrapWidget::grabForShowAnimation(
 	//if (params.withTabs && _topTabs) {
 	//	_topTabs->hide();
 	//}
-	auto result = myGrab(this);
+	auto result = Ui::GrabWidget(this);
 	if (params.withTopBarShadow) {
 		_topShadow->setVisible(true);
 	}

Telegram/SourceFiles/info/media/info_media_widget.cpp

@@ -122,7 +122,7 @@ void Widget::setInternalState(
 		const QRect &geometry,
 		not_null<Memento*> memento) {
 	setGeometry(geometry);
-	myEnsureResized(this);
+	Ui::SendPendingMoveResizeEvents(this);
 	restoreState(memento);
 }
 

Telegram/SourceFiles/info/members/info_members_widget.cpp

@@ -84,7 +84,7 @@ void Widget::setInternalState(
 		const QRect &geometry,
 		not_null<Memento*> memento) {
 	setGeometry(geometry);
-	myEnsureResized(this);
+	Ui::SendPendingMoveResizeEvents(this);
 	restoreState(memento);
 }
 

Telegram/SourceFiles/info/profile/info_profile_widget.cpp

@@ -103,7 +103,7 @@ void Widget::setInternalState(
 		const QRect &geometry,
 		not_null<Memento*> memento) {
 	setGeometry(geometry);
-	myEnsureResized(this);
+	Ui::SendPendingMoveResizeEvents(this);
 	restoreState(memento);
 }
 

Telegram/SourceFiles/inline_bots/inline_results_widget.cpp

@@ -874,7 +874,7 @@ void Widget::prepareCache() {
 	auto showAnimation = base::take(_a_show);
 	auto showAnimationData = base::take(_showAnimation);
 	showChildren();
-	_cache = myGrab(this);
+	_cache = Ui::GrabWidget(this);
 	_showAnimation = base::take(showAnimationData);
 	_a_show = base::take(showAnimation);
 	if (_a_show.animating()) {
@@ -911,7 +911,7 @@ void Widget::startShowAnimation() {
 }
 
 QImage Widget::grabForPanelAnimation() {
-	myEnsureResized(this);
+	Ui::SendPendingMoveResizeEvents(this);
 	auto result = QImage(size() * cIntRetinaFactor(), QImage::Format_ARGB32_Premultiplied);
 	result.setDevicePixelRatio(cRetinaFactor());
 	result.fill(Qt::transparent);

Telegram/SourceFiles/intro/introwidget.cpp

@@ -336,7 +336,7 @@ void Widget::showAnimated(const QPixmap &bgAnimCache, bool back) {
 
 	_a_show.finish();
 	showControls();
-	(_showBack ? _cacheUnder : _cacheOver) = myGrab(this);
+	(_showBack ? _cacheUnder : _cacheOver) = Ui::GrabWidget(this);
 	hideControls();
 
 	_a_show.start([this] { animationCallback(); }, 0., 1., st::slideDuration, Window::SlideAnimation::transition());
@@ -491,7 +491,7 @@ void Widget::Step::resizeEvent(QResizeEvent *e) {
 }
 
 void Widget::Step::updateLabelsPosition() {
-	myEnsureResized(_description->entity());
+	Ui::SendPendingMoveResizeEvents(_description->entity());
 	if (hasCover()) {
 		_title->moveToLeft((width() - _title->width()) / 2, contentTop() + st::introCoverTitleTop);
 		_description->moveToLeft((width() - _description->width()) / 2, contentTop() + st::introCoverDescriptionTop);
@@ -503,7 +503,7 @@ void Widget::Step::updateLabelsPosition() {
 		if (_errorCentered) {
 			_error->entity()->resizeToWidth(width());
 		}
-		myEnsureResized(_error->entity());
+		Ui::SendPendingMoveResizeEvents(_error->entity());
 		auto errorLeft = _errorCentered ? 0 : (contentLeft() + st::buttonRadius);
 		auto errorTop = contentTop() + (_errorBelowLink ? st::introErrorBelowLinkTop : st::introErrorTop);
 		_error->moveToLeft(errorLeft, errorTop);
@@ -773,8 +773,16 @@ void Widget::Step::prepareShowAnimated(Step *after) {
 
 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.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;
@@ -783,13 +791,15 @@ Widget::Step::CoverAnimation Widget::Step::prepareCoverAnimation(Step *after) {
 QPixmap Widget::Step::prepareContentSnapshot() {
 	auto otherTop = _description->y() + _description->height();
 	auto otherRect = myrtlrect(contentLeft(), otherTop, st::introStepWidth, height() - otherTop);
-	return myGrab(this, otherRect);
+	return Ui::GrabWidget(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));
+	return Ui::GrabWidget(
+		this,
+		QRect(grabLeft, grabTop, st::introStepWidth, st::introStepHeight));
 }
 
 void Widget::Step::showAnimated(Direction direction) {

Telegram/SourceFiles/mainwidget.cpp

@@ -2554,7 +2554,7 @@ Window::SectionSlideParams MainWidget::prepareShowAnimation(
 
 	auto sectionTop = getMainSectionTop();
 	if (selectingPeer() && Adaptive::OneColumn()) {
-		result.oldContentCache = myGrab(this, QRect(
+		result.oldContentCache = Ui::GrabWidget(this, QRect(
 			0,
 			sectionTop,
 			_dialogsWidth,
@@ -2568,7 +2568,7 @@ Window::SectionSlideParams MainWidget::prepareShowAnimation(
 			_history->grabStart();
 		}
 		if (Adaptive::OneColumn()) {
-			result.oldContentCache = myGrab(this, QRect(
+			result.oldContentCache = Ui::GrabWidget(this, QRect(
 				0,
 				sectionTop,
 				_dialogsWidth,
@@ -2578,7 +2578,7 @@ Window::SectionSlideParams MainWidget::prepareShowAnimation(
 			if (_thirdShadow) {
 				_thirdShadow->hide();
 			}
-			result.oldContentCache = myGrab(this, QRect(
+			result.oldContentCache = Ui::GrabWidget(this, QRect(
 				_dialogsWidth,
 				sectionTop,
 				width() - _dialogsWidth,
@@ -2890,7 +2890,7 @@ QPixmap MainWidget::grabForShowAnimation(const Window::SectionSlideParams &param
 
 	auto sectionTop = getMainSectionTop();
 	if (Adaptive::OneColumn()) {
-		result = myGrab(this, QRect(
+		result = Ui::GrabWidget(this, QRect(
 			0,
 			sectionTop,
 			_dialogsWidth,
@@ -2900,7 +2900,7 @@ QPixmap MainWidget::grabForShowAnimation(const Window::SectionSlideParams &param
 		if (_thirdShadow) {
 			_thirdShadow->hide();
 		}
-		result = myGrab(this, QRect(
+		result = Ui::GrabWidget(this, QRect(
 			_dialogsWidth,
 			sectionTop,
 			width() - _dialogsWidth,
@@ -3001,10 +3001,15 @@ void MainWidget::showAnimated(const QPixmap &bgAnimCache, bool back) {
 	_a_show.finish();
 
 	showAll();
-	(_showBack ? _cacheUnder : _cacheOver) = myGrab(this);
+	(_showBack ? _cacheUnder : _cacheOver) = Ui::GrabWidget(this);
 	hideAll();
 
-	_a_show.start([this] { animationCallback(); }, 0., 1., st::slideDuration, Window::SlideAnimation::transition());
+	_a_show.start(
+		[this] { animationCallback(); },
+		0.,
+		1.,
+		st::slideDuration,
+		Window::SlideAnimation::transition());
 
 	show();
 }

Telegram/SourceFiles/mainwindow.cpp

@@ -194,11 +194,11 @@ void MainWindow::clearWidgetsHook() {
 QPixmap MainWindow::grabInner() {
 	QPixmap result;
 	if (_intro) {
-		result = myGrab(_intro);
+		result = Ui::GrabWidget(_intro);
 	} else if (_passcode) {
-		result = myGrab(_passcode);
+		result = Ui::GrabWidget(_passcode);
 	} else if (_main) {
-		result = myGrab(_main);
+		result = Ui::GrabWidget(_main);
 	}
 	return result;
 }

Telegram/SourceFiles/media/player/media_player_panel.cpp

@@ -426,7 +426,7 @@ void Panel::startAnimation() {
 	auto to = _hiding ? 0. : 1.;
 	if (_cache.isNull()) {
 		showChildren();
-		_cache = myGrab(this);
+		_cache = Ui::GrabWidget(this);
 	}
 	hideChildren();
 	_a_appearance.start([this] { appearanceCallback(); }, from, to, st::defaultInnerDropdown.duration);

Telegram/SourceFiles/media/player/media_player_volume_controller.cpp

@@ -207,7 +207,7 @@ void VolumeWidget::startAnimation() {
 	auto to = _hiding ? 0. : 1.;
 	if (_cache.isNull()) {
 		showChildren();
-		_cache = myGrab(this);
+		_cache = Ui::GrabWidget(this);
 	}
 	hideChildren();
 	_a_appearance.start([this] { appearanceCallback(); }, from, to, st::defaultInnerDropdown.duration);

Telegram/SourceFiles/mediaview.cpp

@@ -1634,7 +1634,7 @@ void MediaView::setClipControllerGeometry() {
 		controllerBottom - _clipController->height() - st::mediaviewCaptionPadding.bottom() - st::mediaviewCaptionMargin.height(),
 		st::mediaviewControllerSize.width(),
 		st::mediaviewControllerSize.height());
-	myEnsureResized(_clipController);
+	Ui::SendPendingMoveResizeEvents(_clipController);
 }
 
 void MediaView::onVideoPauseResume() {

Telegram/SourceFiles/passcodewidget.cpp

@@ -109,10 +109,15 @@ void PasscodeWidget::showAnimated(const QPixmap &bgAnimCache, bool back) {
 	showAll();
 	setInnerFocus();
 	_passcode->finishAnimating();
-	(_showBack ? _cacheUnder : _cacheOver) = myGrab(this);
+	(_showBack ? _cacheUnder : _cacheOver) = Ui::GrabWidget(this);
 	hideAll();
 
-	_a_show.start([this] { animationCallback(); }, 0., 1., st::slideDuration, Window::SlideAnimation::transition());
+	_a_show.start(
+		[this] { animationCallback(); },
+		0.,
+		1.,
+		st::slideDuration,
+		Window::SlideAnimation::transition());
 	show();
 }
 

Telegram/SourceFiles/profile/profile_cover_drop_area.cpp

@@ -91,10 +91,14 @@ void CoverDropArea::paintEvent(QPaintEvent *e) {
 
 void CoverDropArea::setupAnimation() {
 	if (_cache.isNull()) {
-		_cache = myGrab(this);
+		_cache = Ui::GrabWidget(this);
 	}
 	auto from = _hiding ? 1. : 0., to = _hiding ? 0. : 1.;
-	_a_appearance.start([this]() { update(); }, from, to, st::profileDropAreaDuration);
+	_a_appearance.start(
+		[this] { update(); },
+		from,
+		to,
+		st::profileDropAreaDuration);
 }
 
 } // namespace Profile

Telegram/SourceFiles/ui/effects/fade_animation.cpp

@@ -74,7 +74,7 @@ void FadeAnimation::refreshCache() {
 }
 
 QPixmap FadeAnimation::grabContent() {
-	myEnsureResized(_widget);
+	SendPendingMoveResizeEvents(_widget);
 	_size = _widget->size();
 	if (_size.isEmpty()) {
 		auto image = QImage(
@@ -84,7 +84,7 @@ QPixmap FadeAnimation::grabContent() {
 		image.fill(Qt::transparent);
 		return App::pixmapFromImageInPlace(std::move(image));
 	}
-	auto widgetContent = myGrab(_widget);
+	auto widgetContent = GrabWidget(_widget);
 	if (_scale < 1.) {
 		auto result = QImage(kWideScale * _size * cIntRetinaFactor(), QImage::Format_ARGB32_Premultiplied);
 		result.setDevicePixelRatio(cRetinaFactor());

Telegram/SourceFiles/ui/special_buttons.cpp

@@ -367,7 +367,10 @@ QPixmap SendButton::grabContent() {
 	result.fill(Qt::transparent);
 	{
 		Painter p(&result);
-		p.drawPixmap((kWideScale - 1) / 2 * width(), (kWideScale - 1) / 2 * height(), myGrab(this));
+		p.drawPixmap(
+			(kWideScale - 1) / 2 * width(),
+			(kWideScale - 1) / 2 * height(),
+			GrabWidget(this));
 	}
 	return App::pixmapFromImageInPlace(std::move(result));
 }
@@ -715,7 +718,7 @@ void UserpicButton::grabOldUserpic() {
 		countPhotoPosition(),
 		QSize(_st.photoSize, _st.photoSize)
 	);
-	_oldUserpic = myGrab(this, photoRect);
+	_oldUserpic = GrabWidget(this, photoRect);
 }
 
 void UserpicButton::startNewPhotoShowing() {

Telegram/SourceFiles/ui/twidget.cpp

@@ -118,6 +118,7 @@ QString GetOverride(const QString &familyName) {
 
 } // Fonts
 
+namespace Ui {
 namespace {
 
 class WidgetCreator : public QWidget {
@@ -182,48 +183,61 @@ void SendPendingEventsRecursive(QWidget *target, bool parentHiddenFlag) {
 
 } // namespace
 
-void myEnsureResized(QWidget *target) {
-	if (!target) {
-		return;
-	}
+void SendPendingMoveResizeEvents(not_null<QWidget*> target) {
 	CreateWidgetStateRecursive(target);
 	SendPendingEventsRecursive(target, !target->isVisible());
 }
 
-QPixmap myGrab(TWidget *target, QRect rect, QColor bg) {
-	myEnsureResized(target);
-	if (rect.isNull()) rect = target->rect();
-
-    auto result = QPixmap(rect.size() * cIntRetinaFactor());
-    result.setDevicePixelRatio(cRetinaFactor());
-	if (!target->testAttribute(Qt::WA_OpaquePaintEvent)) {
-		result.fill(bg);
+QPixmap GrabWidget(not_null<TWidget*> target, QRect rect, QColor bg) {
+	SendPendingMoveResizeEvents(target);
+	if (rect.isNull()) {
+		rect = target->rect();
 	}
 
-	target->grabStart();
-	target->render(&result, QPoint(0, 0), rect, QWidget::DrawChildren | QWidget::IgnoreMask);
-	target->grabFinish();
-
-	return result;
-}
-
-QImage myGrabImage(TWidget *target, QRect rect, QColor bg) {
-	myEnsureResized(target);
-	if (rect.isNull()) rect = target->rect();
-
-	auto result = QImage(rect.size() * cIntRetinaFactor(), QImage::Format_ARGB32_Premultiplied);
+	auto result = QPixmap(rect.size() * cIntRetinaFactor());
 	result.setDevicePixelRatio(cRetinaFactor());
 	if (!target->testAttribute(Qt::WA_OpaquePaintEvent)) {
 		result.fill(bg);
 	}
 
 	target->grabStart();
-	target->render(&result, QPoint(0, 0), rect, QWidget::DrawChildren | QWidget::IgnoreMask);
+	target->render(
+		&result,
+		QPoint(0, 0),
+		rect,
+		QWidget::DrawChildren | QWidget::IgnoreMask);
 	target->grabFinish();
 
 	return result;
 }
 
+QImage GrabWidgetToImage(not_null<TWidget*> target, QRect rect, QColor bg) {
+	Ui::SendPendingMoveResizeEvents(target);
+	if (rect.isNull()) {
+		rect = target->rect();
+	}
+
+	auto result = QImage(
+		rect.size() * cIntRetinaFactor(),
+		QImage::Format_ARGB32_Premultiplied);
+	result.setDevicePixelRatio(cRetinaFactor());
+	if (!target->testAttribute(Qt::WA_OpaquePaintEvent)) {
+		result.fill(bg);
+	}
+
+	target->grabStart();
+	target->render(
+		&result,
+		QPoint(0, 0),
+		rect,
+		QWidget::DrawChildren | QWidget::IgnoreMask);
+	target->grabFinish();
+
+	return result;
+}
+
+} // namespace Ui
+
 void sendSynteticMouseEvent(QWidget *widget, QEvent::Type type, Qt::MouseButton button, const QPoint &globalPoint) {
 	if (auto windowHandle = widget->window()->windowHandle()) {
 		auto localPoint = windowHandle->mapFromGlobal(globalPoint);

Telegram/SourceFiles/ui/twidget.h

@@ -29,6 +29,8 @@ QString GetOverride(const QString &familyName);
 
 } // namespace
 
+class TWidget;
+
 template <typename Object>
 class object_ptr;
 
@@ -57,6 +59,17 @@ inline ChildWidget *AttachParentChild(
 	return nullptr;
 }
 
+void SendPendingMoveResizeEvents(not_null<QWidget*> target);
+
+QPixmap GrabWidget(
+	not_null<TWidget*> target,
+	QRect rect = QRect(),
+	QColor bg = QColor(255, 255, 255, 0));
+QImage GrabWidgetToImage(
+	not_null<TWidget*> target,
+	QRect rect = QRect(),
+	QColor bg = QColor(255, 255, 255, 0));
+
 } // namespace Ui
 
 enum class RectPart {
@@ -209,8 +222,6 @@ private:
 
 };
 
-class TWidget;
-
 template <typename Base>
 class TWidgetHelper : public Base {
 public:
@@ -444,10 +455,6 @@ QPointer<const Widget> make_weak(const Widget *object) {
 	return QPointer<const Widget>(object);
 }
 
-void myEnsureResized(QWidget *target);
-QPixmap myGrab(TWidget *target, QRect rect = QRect(), QColor bg = QColor(255, 255, 255, 0));
-QImage myGrabImage(TWidget *target, QRect rect = QRect(), QColor bg = QColor(255, 255, 255, 0));
-
 class SingleQueuedInvokation : public QObject {
 public:
 	SingleQueuedInvokation(base::lambda<void()> callback) : _callback(callback) {

Telegram/SourceFiles/ui/widgets/inner_dropdown.cpp

@@ -247,7 +247,7 @@ void InnerDropdown::prepareCache() {
 	auto showAnimation = base::take(_a_show);
 	auto showAnimationData = base::take(_showAnimation);
 	showChildren();
-	_cache = myGrab(this);
+	_cache = GrabWidget(this);
 	_showAnimation = base::take(showAnimationData);
 	_a_show = base::take(showAnimation);
 	if (_a_show.animating()) {
@@ -305,7 +305,7 @@ void InnerDropdown::startShowAnimation() {
 }
 
 QImage InnerDropdown::grabForPanelAnimation() {
-	myEnsureResized(this);
+	SendPendingMoveResizeEvents(this);
 	auto result = QImage(size() * cIntRetinaFactor(), QImage::Format_ARGB32_Premultiplied);
 	result.setDevicePixelRatio(cRetinaFactor());
 	result.fill(Qt::transparent);

Telegram/SourceFiles/ui/widgets/input_fields.cpp

@@ -244,7 +244,7 @@ bool FlatTextarea::heightAutoupdated() {
 	if (_minHeight < 0 || _maxHeight < 0 || _inHeightCheck) return false;
 	_inHeightCheck = true;
 
-	myEnsureResized(this);
+	SendPendingMoveResizeEvents(this);
 
 	int newh = ceil(document()->size().height()) + 2 * fakeMargin();
 	if (newh > _maxHeight) {
@@ -1824,7 +1824,7 @@ bool InputArea::heightAutoupdated() {
 	if (_st.heightMin < 0 || _st.heightMax < 0 || _inHeightCheck) return false;
 	_inHeightCheck = true;
 
-	myEnsureResized(this);
+	SendPendingMoveResizeEvents(this);
 
 	int newh = qCeil(_inner->document()->size().height()) + _st.textMargins.top() + _st.textMargins.bottom();
 	if (newh > _st.heightMax) {

Telegram/SourceFiles/ui/widgets/labels.cpp

@@ -640,7 +640,12 @@ void FlatLabel::clickHandlerPressedChanged(const ClickHandlerPtr &action, bool a
 	update();
 }
 
-std::unique_ptr<CrossFadeAnimation> FlatLabel::CrossFade(FlatLabel *from, FlatLabel *to, style::color bg, QPoint fromPosition, QPoint toPosition) {
+std::unique_ptr<CrossFadeAnimation> FlatLabel::CrossFade(
+		not_null<FlatLabel*> from,
+		not_null<FlatLabel*> to,
+		style::color bg,
+		QPoint fromPosition,
+		QPoint toPosition) {
 	auto result = std::make_unique<CrossFadeAnimation>(bg);
 
 	struct Data {
@@ -649,9 +654,9 @@ std::unique_ptr<CrossFadeAnimation> FlatLabel::CrossFade(FlatLabel *from, FlatLa
 		int lineHeight = 0;
 		int lineAddTop = 0;
 	};
-	auto prepareData = [&bg](FlatLabel *label) {
+	auto prepareData = [&bg](not_null<FlatLabel*> label) {
 		auto result = Data();
-		result.full = myGrabImage(label, QRect(), bg->c);
+		result.full = GrabWidgetToImage(label, QRect(), bg->c);
 		auto textWidth = label->width() - label->_st.margin.left() - label->_st.margin.right();
 		label->_text.countLineWidths(textWidth, &result.lineWidths);
 		result.lineHeight = label->_st.style.font->height;

Telegram/SourceFiles/ui/widgets/labels.h

@@ -128,7 +128,12 @@ public:
 	void clickHandlerActiveChanged(const ClickHandlerPtr &action, bool active) override;
 	void clickHandlerPressedChanged(const ClickHandlerPtr &action, bool pressed) override;
 
-	static std::unique_ptr<CrossFadeAnimation> CrossFade(FlatLabel *from, FlatLabel *to, style::color bg, QPoint fromPosition = QPoint(), QPoint toPosition = QPoint());
+	static std::unique_ptr<CrossFadeAnimation> CrossFade(
+		not_null<FlatLabel*> from,
+		not_null<FlatLabel*> to,
+		style::color bg,
+		QPoint fromPosition = QPoint(),
+		QPoint toPosition = QPoint());
 
 protected:
 	void paintEvent(QPaintEvent *e) override;

Telegram/SourceFiles/ui/widgets/popup_menu.cpp

@@ -320,7 +320,7 @@ void PopupMenu::prepareCache() {
 	auto showAnimation = base::take(_a_show);
 	auto showAnimationData = base::take(_showAnimation);
 	showChildren();
-	_cache = myGrab(this);
+	_cache = GrabWidget(this);
 	_showAnimation = base::take(showAnimationData);
 	_a_show = base::take(showAnimation);
 }
@@ -396,7 +396,7 @@ void PopupMenu::showAnimationCallback() {
 }
 
 QImage PopupMenu::grabForPanelAnimation() {
-	myEnsureResized(this);
+	SendPendingMoveResizeEvents(this);
 	auto result = QImage(size() * cIntRetinaFactor(), QImage::Format_ARGB32_Premultiplied);
 	result.setDevicePixelRatio(cRetinaFactor());
 	result.fill(Qt::transparent);

Telegram/SourceFiles/ui/widgets/scroll_area.cpp

@@ -359,7 +359,9 @@ void ScrollArea::touchDeaccelerate(int32 elapsed) {
 }
 
 void ScrollArea::onScrolled() {
-	myEnsureResized(widget());
+	if (const auto inner = widget()) {
+		SendPendingMoveResizeEvents(inner);
+	}
 
 	bool em = false;
 	int horizontalValue = horizontalScrollBar()->value();
@@ -703,8 +705,10 @@ void ScrollArea::scrollToWidget(not_null<QWidget*> widget) {
 }
 
 void ScrollArea::scrollToY(int toTop, int toBottom) {
-	myEnsureResized(widget());
-	myEnsureResized(this);
+	if (const auto inner = widget()) {
+		SendPendingMoveResizeEvents(inner);
+	}
+	SendPendingMoveResizeEvents(this);
 
 	int toMin = 0, toMax = scrollTopMax();
 	if (toTop < toMin) {

Telegram/SourceFiles/ui/widgets/shadow.cpp

@@ -89,8 +89,11 @@ void Shadow::paint(Painter &p, const QRect &box, int outerWidth, const style::Sh
 	}
 }
 
-QPixmap Shadow::grab(TWidget *target, const style::Shadow &shadow, RectParts sides) {
-	myEnsureResized(target);
+QPixmap Shadow::grab(
+		not_null<TWidget*> target,
+		const style::Shadow &shadow,
+		RectParts sides) {
+	SendPendingMoveResizeEvents(target);
 	auto rect = target->rect();
 	auto extend = QMargins(
 		(sides & RectPart::Left) ? shadow.extend.left() : 0,

Telegram/SourceFiles/ui/widgets/shadow.h

@@ -42,14 +42,26 @@ private:
 
 class Shadow : public TWidget {
 public:
-	Shadow(QWidget *parent, const style::Shadow &st, RectParts sides = RectPart::Left | RectPart::Top | RectPart::Right | RectPart::Bottom) : TWidget(parent)
+	Shadow(
+		QWidget *parent,
+		const style::Shadow &st,
+		RectParts sides = RectPart::AllSides)
+	: TWidget(parent)
 	, _st(st)
 	, _sides(sides) {
 	}
 
-	static void paint(Painter &p, const QRect &box, int outerWidth, const style::Shadow &st, RectParts sides = RectPart::Left | RectPart::Top | RectPart::Right | RectPart::Bottom);
+	static void paint(
+		Painter &p,
+		const QRect &box,
+		int outerWidth,
+		const style::Shadow &st,
+		RectParts sides = RectPart::AllSides);
 
-	static QPixmap grab(TWidget *target, const style::Shadow &shadow, RectParts sides = RectPart::Left | RectPart::Top | RectPart::Right | RectPart::Bottom);
+	static QPixmap grab(
+		not_null<TWidget*> target,
+		const style::Shadow &shadow,
+		RectParts sides = RectPart::AllSides);
 
 protected:
 	void paintEvent(QPaintEvent *e) override;

Telegram/SourceFiles/ui/widgets/tooltip.cpp

@@ -311,7 +311,7 @@ void ImportantTooltip::refreshAnimationCache() {
 		auto animation = base::take(_visibleAnimation);
 		auto visible = std::exchange(_visible, true);
 		showChildren();
-		_cache = myGrab(this);
+		_cache = GrabWidget(this);
 		_visible = base::take(visible);
 		_visibleAnimation = base::take(animation);
 	}

Telegram/SourceFiles/ui/wrap/slide_wrap.cpp

@@ -122,7 +122,7 @@ void SlideWrap<RpWidget>::animationStep() {
 	if (shouldBeHidden != isHidden()) {
 		setVisible(!shouldBeHidden);
 		if (shouldBeHidden) {
-			myEnsureResized(this);
+			SendPendingMoveResizeEvents(this);
 		}
 	}
 }

Telegram/SourceFiles/window/layer_widget.cpp

@@ -405,7 +405,7 @@ void LayerStackWidget::setCacheImages() {
 	auto bodyCache = QPixmap(), mainMenuCache = QPixmap();
 	auto specialLayerCache = QPixmap();
 	if (_specialLayer) {
-		myEnsureResized(_specialLayer);
+		Ui::SendPendingMoveResizeEvents(_specialLayer);
 		auto sides = RectPart::Left | RectPart::Right;
 		if (_specialLayer->y() > 0) {
 			sides |= RectPart::Top;
@@ -425,7 +425,7 @@ void LayerStackWidget::setCacheImages() {
 	if (_mainMenu) {
 		setAttribute(Qt::WA_OpaquePaintEvent, false);
 		hideChildren();
-		bodyCache = myGrab(App::wnd()->bodyWidget());
+		bodyCache = Ui::GrabWidget(App::wnd()->bodyWidget());
 		showChildren();
 		mainMenuCache = Ui::Shadow::grab(_mainMenu, st::boxRoundShadow, RectPart::Right);
 	}
@@ -733,7 +733,7 @@ void LayerStackWidget::initChildLayer(LayerWidget *layer) {
 	layer->setClosedCallback([this, layer] { onLayerClosed(layer); });
 	layer->setResizedCallback([this] { onLayerResized(); });
 	connect(layer, SIGNAL(destroyed(QObject*)), this, SLOT(onLayerDestroyed(QObject*)));
-	myEnsureResized(layer);
+	Ui::SendPendingMoveResizeEvents(layer);
 	layer->parentResized();
 }
 

Telegram/SourceFiles/window/notifications_manager_default.cpp

@@ -539,7 +539,7 @@ void Notification::refreshLang() {
 }
 
 void Notification::prepareActionsCache() {
-	auto replyCache = myGrab(_reply);
+	auto replyCache = Ui::GrabWidget(_reply);
 	auto fadeWidth = st::notifyFadeRight.width();
 	auto actionsTop = st::notifyTextTop + st::msgNameFont->height;
 	auto replyRight = _replyPadding - st::notifyBorderWidth;

Telegram/SourceFiles/window/section_widget.h

@@ -105,7 +105,7 @@ public:
 	// This can be used to grab with or without top bar shadow.
 	// This will be protected when animation preparation will be done inside.
 	virtual QPixmap grabForShowAnimation(const SectionSlideParams &params) {
-		return myGrab(this);
+		return Ui::GrabWidget(this);
 	}
 
 	// Attempt to show the required section inside the existing one.

Telegram/SourceFiles/window/themes/window_theme_warning.cpp

@@ -136,8 +136,8 @@ void WarningWidget::startAnimation(bool hiding) {
 	_hiding = hiding;
 	if (_cache.isNull()) {
 		showChildren();
-		myEnsureResized(this);
-		_cache = myGrab(this, _outer);
+		Ui::SendPendingMoveResizeEvents(this);
+		_cache = Ui::GrabWidget(this, _outer);
 	}
 	hideChildren();
 	_animation.start([this] {