Support translations in replies / pinned.

Telegram/SourceFiles/history/history_inner_widget.cpp

@@ -915,7 +915,6 @@ void HistoryInner::paintEvent(QPaintEvent *e) {
 
 	const auto historyDisplayedEmpty = _history->isDisplayedEmpty()
 		&& (!_migrated || _migrated->isDisplayedEmpty());
-	const auto translatedTo = _history->translatedTo();
 	if (_botAbout && !_botAbout->info->text.isEmpty() && _botAbout->height > 0) {
 		const auto st = context.st;
 		const auto stm = &st->messageStyle(false, false);
@@ -969,7 +968,7 @@ void HistoryInner::paintEvent(QPaintEvent *e) {
 	auto readContents = base::flat_set<not_null<HistoryItem*>>();
 	const auto guard = gsl::finally([&] {
 		if (_pinnedItem) {
-			_translateTracker->add(_pinnedItem, translatedTo);
+			_translateTracker->add(_pinnedItem);
 		}
 		_translateTracker->finishBunch();
 		if (readTill && _widget->markingMessagesRead()) {
@@ -985,7 +984,7 @@ void HistoryInner::paintEvent(QPaintEvent *e) {
 			not_null<Element*> view,
 			int top,
 			int height) {
-		_translateTracker->add(view, translatedTo);
+		_translateTracker->add(view);
 		const auto item = view->data();
 		const auto isSponsored = item->isSponsored();
 		const auto isUnread = !item->out()

Telegram/SourceFiles/history/view/history_view_contact_status.cpp

@@ -480,6 +480,7 @@ SlidingBar::SlidingBar(
 , _shadow(parent) {
 	setup(parent);
 	_wrapped.hide(anim::type::instant);
+	_shadow.hide();
 }
 
 void SlidingBar::setup(not_null<Ui::RpWidget*> parent) {
@@ -497,10 +498,13 @@ void SlidingBar::setup(not_null<Ui::RpWidget*> parent) {
 			st::lineWidth);
 	}, _shadow.lifetime());
 
-	_wrapped.shownValue(
-	) | rpl::start_with_next([=](bool shown) {
-		_shadow.setVisible(shown);
-	}, _shadow.lifetime());
+	_shadow.showOn(rpl::combine(
+		_wrapped.shownValue(),
+		_wrapped.heightValue(),
+		rpl::mappers::_1 && rpl::mappers::_2 > 0
+	) | rpl::filter([=](bool shown) {
+		return (shown == _shadow.isHidden());
+	}));
 }
 
 void SlidingBar::toggleContent(bool visible) {
@@ -516,14 +520,13 @@ void SlidingBar::raise() {
 }
 
 void SlidingBar::setVisible(bool visible) {
-	if (_shown == visible) {
-		return;
-	}
 	_shown = visible;
 	if (!_shown) {
 		_wrapped.hide(anim::type::instant);
 	} else if (_contentShown) {
 		_wrapped.show(anim::type::instant);
+	} else if (!_wrapped.isHidden() && !_wrapped.animating()) {
+		_wrapped.hide(anim::type::instant);
 	}
 }
 

Telegram/SourceFiles/history/view/history_view_list_widget.cpp

@@ -24,6 +24,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "history/view/history_view_message.h"
 #include "history/view/history_view_service_message.h"
 #include "history/view/history_view_cursor_state.h"
+#include "history/view/history_view_translate_tracker.h"
 #include "history/view/history_view_quick_action.h"
 #include "chat_helpers/message_field.h"
 #include "mainwindow.h"
@@ -83,6 +84,11 @@ constexpr auto kPreloadedScreensCountFull
 	= kPreloadedScreensCount + 1 + kPreloadedScreensCount;
 constexpr auto kClearUserpicsAfter = 50;
 
+[[nodiscard]] std::unique_ptr<TranslateTracker> MaybeTranslateTracker(
+		History *history) {
+	return history ? std::make_unique<TranslateTracker>(history) : nullptr;
+}
+
 } // namespace
 
 ListWidget::MouseState::MouseState() : pointState(PointState::Outside) {
@@ -297,6 +303,7 @@ ListWidget::ListWidget(
 		this,
 		[=](QRect updated) { update(updated); },
 		controller->cachedReactionIconFactory().createMethod()))
+, _translateTracker(MaybeTranslateTracker(_delegate->listTranslateHistory()))
 , _scrollDateCheck([this] { scrollDateCheck(); })
 , _applyUpdatedScrollState([this] { applyUpdatedScrollState(); })
 , _selectEnabled(_delegate->listAllowsMultiSelect())
@@ -359,6 +366,15 @@ ListWidget::ListWidget(
 		maybeMarkReactionsRead(update.item);
 	}, lifetime());
 
+	if (const auto history = _delegate->listTranslateHistory()) {
+		session().changes().historyUpdates(
+			history,
+			Data::HistoryUpdate::Flag::TranslatedTo
+		) | rpl::start_with_next([=] {
+			update();
+		}, lifetime());
+	}
+
 	session().data().itemVisibilityQueries(
 	) | rpl::start_with_next([=](
 			const Data::Session::ItemVisibilityQuery &query) {
@@ -2025,9 +2041,16 @@ void ListWidget::paintEvent(QPaintEvent *e) {
 		return;
 	}
 
+	if (_translateTracker) {
+		_translateTracker->startBunch();
+	}
 	auto readTill = (HistoryItem*)nullptr;
 	auto readContents = base::flat_set<not_null<HistoryItem*>>();
 	const auto guard = gsl::finally([&] {
+		if (_translateTracker) {
+			_delegate->listAddTranslatedItems(_translateTracker.get());
+			_translateTracker->finishBunch();
+		}
 		if (readTill && markingMessagesRead()) {
 			_delegate->listMarkReadTill(readTill);
 		}
@@ -2076,6 +2099,9 @@ void ListWidget::paintEvent(QPaintEvent *e) {
 			context.selection = itemRenderSelection(view);
 			view->draw(p, context);
 		}
+		if (_translateTracker) {
+			_translateTracker->add(view);
+		}
 		const auto isSponsored = item->isSponsored();
 		const auto isUnread = _delegate->listElementShownUnread(view)
 			&& item->isRegular();

Telegram/SourceFiles/history/view/history_view_list_widget.h

@@ -53,6 +53,7 @@ namespace HistoryView {
 struct TextState;
 struct StateRequest;
 class EmojiInteractions;
+class TranslateTracker;
 enum class CursorState : char;
 enum class PointState : char;
 enum class Context : char;
@@ -142,6 +143,9 @@ public:
 		Painter &p,
 		const Ui::ChatPaintContext &context) = 0;
 	virtual QString listElementAuthorRank(not_null<const Element*> view) = 0;
+	virtual History *listTranslateHistory() = 0;
+	virtual void listAddTranslatedItems(
+		not_null<TranslateTracker*> tracker) = 0;
 };
 
 struct SelectionData {
@@ -644,6 +648,8 @@ private:
 	rpl::variable<HistoryItem*> _reactionsItem;
 	bool _useCornerReaction = false;
 
+	std::unique_ptr<TranslateTracker> _translateTracker;
+
 	int _minHeight = 0;
 	int _visibleTop = 0;
 	int _visibleBottom = 0;

Telegram/SourceFiles/history/view/history_view_pinned_section.cpp

@@ -8,6 +8,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "history/view/history_view_pinned_section.h"
 
 #include "history/view/history_view_top_bar_widget.h"
+#include "history/view/history_view_translate_bar.h"
 #include "history/view/history_view_list_widget.h"
 #include "history/history.h"
 #include "history/history_item_components.h"
@@ -100,6 +101,7 @@ PinnedWidget::PinnedWidget(
 	: nullptr)
 , _topBar(this, controller)
 , _topBarShadow(this)
+, _translateBar(std::make_unique<TranslateBar>(this, controller, _history))
 , _scroll(std::make_unique<Ui::ScrollArea>(
 	this,
 	controller->chatStyle()->value(lifetime(), st::historyScroll),
@@ -150,6 +152,7 @@ PinnedWidget::PinnedWidget(
 		clearSelected();
 	}, _topBar->lifetime());
 
+	_translateBar->raise();
 	_topBarShadow->raise();
 	controller->adaptive().value(
 	) | rpl::start_with_next([=] {
@@ -168,6 +171,7 @@ PinnedWidget::PinnedWidget(
 	}, lifetime());
 
 	setupClearButton();
+	setupTranslateBar();
 }
 
 PinnedWidget::~PinnedWidget() = default;
@@ -195,6 +199,29 @@ void PinnedWidget::setupClearButton() {
 	});
 }
 
+void PinnedWidget::setupTranslateBar() {
+	controller()->adaptive().oneColumnValue(
+	) | rpl::start_with_next([=, raw = _translateBar.get()](bool one) {
+		raw->setShadowGeometryPostprocess([=](QRect geometry) {
+			if (!one) {
+				geometry.setLeft(geometry.left() + st::lineWidth);
+			}
+			return geometry;
+		});
+	}, _translateBar->lifetime());
+
+	_translateBarHeight = 0;
+	_translateBar->heightValue(
+	) | rpl::start_with_next([=](int height) {
+		if (const auto delta = height - _translateBarHeight) {
+			_translateBarHeight = height;
+			setGeometryWithTopMoved(geometry(), delta);
+		}
+	}, _translateBar->lifetime());
+
+	_translateBar->finishAnimating();
+}
+
 void PinnedWidget::cornerButtonsShowAtPosition(
 		Data::MessagePosition position) {
 	showAtPosition(position);
@@ -261,6 +288,7 @@ QPixmap PinnedWidget::grabForShowAnimation(const Window::SectionSlideParams &par
 	if (params.withTopBarShadow) _topBarShadow->hide();
 	auto result = Ui::GrabWidget(this);
 	if (params.withTopBarShadow) _topBarShadow->show();
+	_translateBar->hide();
 	return result;
 }
 
@@ -370,8 +398,11 @@ void PinnedWidget::updateControlsGeometry() {
 	_clearButton->resizeToWidth(width());
 	_clearButton->move(0, bottom);
 	const auto controlsHeight = 0;
-	const auto scrollY = _topBar->height();
-	const auto scrollHeight = bottom - scrollY - controlsHeight;
+	auto top = _topBar->height();
+	_translateBar->move(0, top);
+	_translateBar->resizeToWidth(contentWidth);
+	top += _translateBarHeight;
+	const auto scrollHeight = bottom - top - controlsHeight;
 	const auto scrollSize = QSize(contentWidth, scrollHeight);
 	if (_scroll->size() != scrollSize) {
 		_skipScrollEvent = true;
@@ -379,7 +410,7 @@ void PinnedWidget::updateControlsGeometry() {
 		_inner->resizeToWidth(scrollSize.width(), _scroll->height());
 		_skipScrollEvent = false;
 	}
-	_scroll->move(0, scrollY);
+	_scroll->move(0, top);
 	if (!_scroll->isHidden()) {
 		if (newScrollTop) {
 			_scroll->scrollToY(*newScrollTop);
@@ -429,6 +460,7 @@ void PinnedWidget::showAnimatedHook(
 void PinnedWidget::showFinishedHook() {
 	_topBar->setAnimatingMode(false);
 	_inner->showFinished();
+	_translateBar->show();
 }
 
 bool PinnedWidget::floatPlayerHandleWheelEvent(QEvent *e) {
@@ -630,6 +662,14 @@ QString PinnedWidget::listElementAuthorRank(not_null<const Element*> view) {
 	return {};
 }
 
+History *PinnedWidget::listTranslateHistory() {
+	return _history;
+}
+
+void PinnedWidget::listAddTranslatedItems(
+	not_null<TranslateTracker*> tracker) {
+}
+
 void PinnedWidget::confirmDeleteSelected() {
 	ConfirmDeleteSelectedItems(_inner);
 }

Telegram/SourceFiles/history/view/history_view_pinned_section.h

@@ -32,6 +32,7 @@ namespace HistoryView {
 class Element;
 class TopBarWidget;
 class PinnedMemento;
+class TranslateBar;
 
 class PinnedWidget final
 	: public Window::SectionWidget
@@ -126,6 +127,9 @@ public:
 		Painter &p,
 		const Ui::ChatPaintContext &context) override;
 	QString listElementAuthorRank(not_null<const Element*> view) override;
+	History *listTranslateHistory() override;
+	void listAddTranslatedItems(
+		not_null<TranslateTracker*> tracker) override;
 
 	// CornerButtonsDelegate delegate.
 	void cornerButtonsShowAtPosition(
@@ -158,6 +162,7 @@ private:
 		FullMsgId originId = {});
 
 	void setupClearButton();
+	void setupTranslateBar();
 
 	void confirmDeleteSelected();
 	void confirmForwardSelected();
@@ -175,6 +180,9 @@ private:
 	object_ptr<TopBarWidget> _topBar;
 	object_ptr<Ui::PlainShadow> _topBarShadow;
 
+	std::unique_ptr<TranslateBar> _translateBar;
+	int _translateBarHeight = 0;
+
 	bool _skipScrollEvent = false;
 	std::unique_ptr<Ui::ScrollArea> _scroll;
 	std::unique_ptr<Ui::FlatButton> _clearButton;

Telegram/SourceFiles/history/view/history_view_replies_section.cpp

@@ -18,6 +18,8 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "history/view/history_view_service_message.h"
 #include "history/view/history_view_pinned_tracker.h"
 #include "history/view/history_view_pinned_section.h"
+#include "history/view/history_view_translate_bar.h"
+#include "history/view/history_view_translate_tracker.h"
 #include "history/history.h"
 #include "history/history_drag_area.h"
 #include "history/history_item_components.h"
@@ -241,14 +243,15 @@ RepliesWidget::RepliesWidget(
 	[=](not_null<DocumentData*> emoji) { listShowPremiumToast(emoji); },
 	ComposeControls::Mode::Normal,
 	SendMenu::Type::SilentOnly))
+, _translateBar(std::make_unique<TranslateBar>(this, controller, history))
 , _scroll(std::make_unique<Ui::ScrollArea>(
 	this,
 	controller->chatStyle()->value(lifetime(), st::historyScroll),
 	false))
 , _cornerButtons(
-	_scroll.get(),
-	controller->chatStyle(),
-	static_cast<HistoryView::CornerButtonsDelegate*>(this)) {
+		_scroll.get(),
+		controller->chatStyle(),
+		static_cast<HistoryView::CornerButtonsDelegate*>(this)) {
 	controller->chatStyle()->paletteChanged(
 	) | rpl::start_with_next([=] {
 		_scroll->updateBars();
@@ -265,6 +268,7 @@ RepliesWidget::RepliesWidget(
 	setupRoot();
 	setupRootView();
 	setupShortcuts();
+	setupTranslateBar();
 
 	_history->peer->updateFull();
 
@@ -406,8 +410,9 @@ RepliesWidget::~RepliesWidget() {
 }
 
 void RepliesWidget::orderWidgets() {
-	if (_topBar) {
-		_topBar->raise();
+	_translateBar->raise();
+	if (_topicReopenBar) {
+		_topicReopenBar->bar().raise();
 	}
 	if (_rootView) {
 		_rootView->raise();
@@ -415,8 +420,8 @@ void RepliesWidget::orderWidgets() {
 	if (_pinnedBar) {
 		_pinnedBar->raise();
 	}
-	if (_topicReopenBar) {
-		_topicReopenBar->bar().raise();
+	if (_topBar) {
+		_topBar->raise();
 	}
 	_topBarShadow->raise();
 	_composeControls->raisePanels();
@@ -453,8 +458,12 @@ void RepliesWidget::setupRootView() {
 			_rootId,
 			[bar = _rootView.get()] { bar->customEmojiRepaint(); }),
 		_rootVisible.value()
-	) | rpl::map([=](Ui::MessageBarContent &&content, bool shown) {
-		return shown ? std::move(content) : Ui::MessageBarContent();
+	) | rpl::map([=](Ui::MessageBarContent &&content, bool show) {
+		const auto shown = !content.title.isEmpty() && !content.text.empty();
+		_shownPinnedItem = shown
+			? _history->owner().message(_history->peer->id, _rootId)
+			: nullptr;
+		return show ? std::move(content) : Ui::MessageBarContent();
 	}));
 
 	controller()->adaptive().oneColumnValue(
@@ -585,6 +594,7 @@ void RepliesWidget::setTopic(Data::ForumTopic *topic) {
 	refreshTopBarActiveChat();
 	if (_topic) {
 		if (_rootView) {
+			_shownPinnedItem = nullptr;
 			_rootView = nullptr;
 			_rootViewHeight = 0;
 		}
@@ -1510,6 +1520,29 @@ void RepliesWidget::checkLastPinnedClickedIdReset(
 	}
 }
 
+void RepliesWidget::setupTranslateBar() {
+	controller()->adaptive().oneColumnValue(
+	) | rpl::start_with_next([=, raw = _translateBar.get()](bool one) {
+		raw->setShadowGeometryPostprocess([=](QRect geometry) {
+			if (!one) {
+				geometry.setLeft(geometry.left() + st::lineWidth);
+			}
+			return geometry;
+		});
+	}, _translateBar->lifetime());
+
+	_translateBarHeight = 0;
+	_translateBar->heightValue(
+	) | rpl::start_with_next([=](int height) {
+		if (const auto delta = height - _translateBarHeight) {
+			_translateBarHeight = height;
+			setGeometryWithTopMoved(geometry(), delta);
+		}
+	}, _translateBar->lifetime());
+
+	_translateBar->finishAnimating();
+}
+
 void RepliesWidget::setupPinnedTracker() {
 	Expects(_topic != nullptr);
 
@@ -1563,6 +1596,7 @@ void RepliesWidget::checkPinnedBarState() {
 		if (_pinnedBar) {
 			_pinnedBar->setContent(rpl::single(Ui::MessageBarContent()));
 			_pinnedTracker->reset();
+			_shownPinnedItem = nullptr;
 			_hidingPinnedBar = base::take(_pinnedBar);
 			const auto raw = _hidingPinnedBar.get();
 			base::call_delayed(st::defaultMessageBar.duration, this, [=] {
@@ -1614,7 +1648,12 @@ void RepliesWidget::checkPinnedBarState() {
 		std::move(pinnedRefreshed),
 		std::move(markupRefreshed),
 		_rootVisible.value()
-	) | rpl::map([](Ui::MessageBarContent &&content, auto, auto, bool show) {
+	) | rpl::map([=](Ui::MessageBarContent &&content, auto, auto, bool show) {
+		const auto shown = !content.title.isEmpty() && !content.text.empty();
+		_shownPinnedItem = shown
+			? _history->owner().message(
+				_pinnedTracker->currentMessageId().message)
+			: nullptr;
 		return (show || content.count > 1)
 			? std::move(content)
 			: Ui::MessageBarContent();
@@ -1896,6 +1935,7 @@ QPixmap RepliesWidget::grabForShowAnimation(const Window::SectionSlideParams &pa
 	if (_pinnedBar) {
 		_pinnedBar->hide();
 	}
+	_translateBar->hide();
 	return result;
 }
 
@@ -2125,22 +2165,24 @@ void RepliesWidget::updateControlsGeometry() {
 	if (_rootView) {
 		_rootView->resizeToWidth(contentWidth);
 	}
+	auto top = _topBar->height() + _rootViewHeight;
 	if (_pinnedBar) {
-		_pinnedBar->move(0, _topBar->height());
+		_pinnedBar->move(0, top);
 		_pinnedBar->resizeToWidth(contentWidth);
+		top += _pinnedBarHeight;
 	}
+	if (_topicReopenBar) {
+		_topicReopenBar->bar().move(0, top);
+		top += _topicReopenBar->bar().height();
+	}
+	_translateBar->move(0, top);
+	_translateBar->resizeToWidth(contentWidth);
+	top += _translateBarHeight;
 
 	const auto bottom = height();
 	const auto controlsHeight = _joinGroup
 		? _joinGroup->height()
 		: _composeControls->heightCurrent();
-	auto top = _topBar->height()
-		+ _rootViewHeight
-		+ _pinnedBarHeight;
-	if (_topicReopenBar) {
-		_topicReopenBar->bar().move(0, top);
-		top += _topicReopenBar->bar().height();
-	}
 	const auto scrollHeight = bottom - top - controlsHeight;
 	const auto scrollSize = QSize(contentWidth, scrollHeight);
 	if (_scroll->size() != scrollSize) {
@@ -2250,11 +2292,6 @@ void RepliesWidget::setPinnedVisibility(bool shown) {
 				}
 			}
 		}
-		if (shown) {
-			_rootView->show();
-		} else {
-			_rootView->hide();
-		}
 		_rootVisible = shown;
 		if (!_rootViewInited) {
 			_rootView->finishAnimating();
@@ -2293,6 +2330,10 @@ void RepliesWidget::showFinishedHook() {
 	if (_pinnedBar) {
 		_pinnedBar->show();
 	}
+	_translateBar->show();
+	if (_topicReopenBar) {
+		_topicReopenBar->bar().show();
+	}
 
 	// We should setup the drag area only after
 	// the section animation is finished,
@@ -2536,6 +2577,17 @@ QString RepliesWidget::listElementAuthorRank(not_null<const Element*> view) {
 		: QString();
 }
 
+History *RepliesWidget::listTranslateHistory() {
+	return _history;
+}
+
+void RepliesWidget::listAddTranslatedItems(
+		not_null<TranslateTracker*> tracker) {
+	if (_shownPinnedItem) {
+		tracker->add(_shownPinnedItem);
+	}
+}
+
 void RepliesWidget::setupEmptyPainter() {
 	Expects(_topic != nullptr);
 

Telegram/SourceFiles/history/view/history_view_replies_section.h

@@ -67,6 +67,7 @@ class StickerToast;
 class TopicReopenBar;
 class EmptyPainter;
 class PinnedTracker;
+class TranslateBar;
 
 class RepliesWidget final
 	: public Window::SectionWidget
@@ -170,6 +171,9 @@ public:
 		Painter &p,
 		const Ui::ChatPaintContext &context) override;
 	QString listElementAuthorRank(not_null<const Element*> view) override;
+	History *listTranslateHistory() override;
+	void listAddTranslatedItems(
+		not_null<TranslateTracker*> tracker) override;
 
 	// CornerButtonsDelegate delegate.
 	void cornerButtonsShowAtPosition(
@@ -217,9 +221,9 @@ private:
 	void setTopic(Data::ForumTopic *topic);
 	void setupDragArea();
 	void setupShortcuts();
+	void setupTranslateBar();
 
 	void searchInTopic();
-	void scrollDownAnimationFinish();
 	void updatePinnedVisibility();
 
 	void confirmDeleteSelected();
@@ -332,12 +336,16 @@ private:
 	bool _skipScrollEvent = false;
 	bool _synteticScrollEvent = false;
 
+	std::unique_ptr<TranslateBar> _translateBar;
+	int _translateBarHeight = 0;
+
 	std::unique_ptr<PinnedTracker> _pinnedTracker;
 	std::unique_ptr<Ui::PinnedBar> _pinnedBar;
 	std::unique_ptr<Ui::PinnedBar> _hidingPinnedBar;
 	int _pinnedBarHeight = 0;
 	FullMsgId _pinnedClickedId;
 	std::optional<FullMsgId> _minPinnedId;
+	HistoryItem *_shownPinnedItem = nullptr;
 
 	std::unique_ptr<Ui::PinnedBar> _rootView;
 	int _rootViewHeight = 0;

Telegram/SourceFiles/history/view/history_view_scheduled_section.cpp

@@ -1325,6 +1325,14 @@ QString ScheduledWidget::listElementAuthorRank(
 	return {};
 }
 
+History *ScheduledWidget::listTranslateHistory() {
+	return nullptr;
+}
+
+void ScheduledWidget::listAddTranslatedItems(
+	not_null<TranslateTracker*> tracker) {
+}
+
 void ScheduledWidget::confirmSendNowSelected() {
 	ConfirmSendNowSelectedItems(_inner);
 }

Telegram/SourceFiles/history/view/history_view_scheduled_section.h

@@ -150,6 +150,9 @@ public:
 		Painter &p,
 		const Ui::ChatPaintContext &context) override;
 	QString listElementAuthorRank(not_null<const Element*> view) override;
+	History *listTranslateHistory() override;
+	void listAddTranslatedItems(
+		not_null<TranslateTracker*> tracker) override;
 
 	// CornerButtonsDelegate delegate.
 	void cornerButtonsShowAtPosition(

Telegram/SourceFiles/history/view/history_view_translate_bar.cpp

@@ -237,18 +237,19 @@ TranslateBar::TranslateBar(
 	_wrap.hide(anim::type::instant);
 	_shadow->hide();
 
+	_shadow->showOn(rpl::combine(
+		_wrap.shownValue(),
+		_wrap.heightValue(),
+		rpl::mappers::_1 && rpl::mappers::_2 > 0
+	) | rpl::filter([=](bool shown) {
+		return (shown == _shadow->isHidden());
+	}));
+
 	setup(history);
 }
 
 TranslateBar::~TranslateBar() = default;
 
-void TranslateBar::updateControlsGeometry(QRect wrapGeometry) {
-	const auto hidden = _wrap.isHidden() || !wrapGeometry.height();
-	if (_shadow->isHidden() != hidden) {
-		_shadow->setVisible(!hidden);
-	}
-}
-
 void TranslateBar::setShadowGeometryPostprocess(
 		Fn<QRect(QRect)> postprocess) {
 	_shadowGeometryPostprocess = std::move(postprocess);
@@ -270,7 +271,6 @@ void TranslateBar::setup(not_null<History*> history) {
 	_wrap.geometryValue(
 	) | rpl::start_with_next([=](QRect rect) {
 		updateShadowGeometry(rect);
-		updateControlsGeometry(rect);
 	}, _wrap.lifetime());
 
 	const auto translateTo = [=](LanguageId id) {
@@ -563,7 +563,8 @@ void TranslateBar::show() {
 	_forceHidden = false;
 	if (_shouldBeShown) {
 		_wrap.show(anim::type::instant);
-		_shadow->show();
+	} else if (!_wrap.isHidden() && !_wrap.animating()) {
+		_wrap.hide(anim::type::instant);
 	}
 }
 
@@ -573,7 +574,6 @@ void TranslateBar::hide() {
 	}
 	_forceHidden = true;
 	_wrap.hide(anim::type::instant);
-	_shadow->hide();
 }
 
 void TranslateBar::raise() {

Telegram/SourceFiles/history/view/history_view_translate_bar.h

@@ -51,7 +51,6 @@ public:
 private:
 	void setup(not_null<History*> history);
 	void updateShadowGeometry(QRect wrapGeometry);
-	void updateControlsGeometry(QRect wrapGeometry);
 	[[nodiscard]] base::unique_qptr<Ui::PopupMenu> createMenu(
 		not_null<Ui::IconButton*> button);
 	void showMenu(base::unique_qptr<Ui::PopupMenu> menu);

Telegram/SourceFiles/history/view/history_view_translate_tracker.cpp

@@ -19,7 +19,6 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "history/history_item_components.h"
 #include "history/view/history_view_element.h"
 #include "main/main_session.h"
-#include "spellcheck/spellcheck_types.h"
 #include "spellcheck/platform/platform_language.h"
 
 namespace HistoryView {
@@ -32,11 +31,6 @@ constexpr auto kRequestCountLimit = 20;
 
 } // namespace
 
-struct TranslateTracker::ItemForRecognize {
-	uint64 generation = 0;
-	MaybeLanguageId id;
-};
-
 TranslateTracker::TranslateTracker(not_null<History*> history)
 : _history(history)
 , _limit(kEnoughForRecognition) {
@@ -85,29 +79,25 @@ bool TranslateTracker::enoughForRecognition() const {
 
 void TranslateTracker::startBunch() {
 	_addedInBunch = 0;
+	_bunchTranslatedTo = _history->translatedTo();
 	++_generation;
 }
 
-void TranslateTracker::add(
-		not_null<Element*> view,
-		LanguageId translatedTo) {
+void TranslateTracker::add(not_null<Element*> view) {
 	const auto item = view->data();
 	const auto only = view->isOnlyEmojiAndSpaces();
 	if (only != OnlyEmojiAndSpaces::Unknown) {
 		item->cacheOnlyEmojiAndSpaces(only == OnlyEmojiAndSpaces::Yes);
 	}
-	add(item, translatedTo, false);
+	add(item, false);
+}
+
+void TranslateTracker::add(not_null<HistoryItem*> item) {
+	add(item, false);
 }
 
 void TranslateTracker::add(
 		not_null<HistoryItem*> item,
-		LanguageId translatedTo) {
-	add(item, translatedTo, false);
-}
-
-void TranslateTracker::add(
-		not_null<HistoryItem*> item,
-		LanguageId translatedTo,
 		bool skipDependencies) {
 	Expects(_addedInBunch >= 0);
 
@@ -117,15 +107,26 @@ void TranslateTracker::add(
 		|| item->isOnlyEmojiAndSpaces()) {
 		return;
 	}
-	if (item->translationShowRequiresCheck(translatedTo)) {
-		_switchTranslations[item] = translatedTo;
+	if (item->translationShowRequiresCheck(_bunchTranslatedTo)) {
+		_switchTranslations[item] = _bunchTranslatedTo;
 	}
 	if (!skipDependencies) {
 		if (const auto reply = item->Get<HistoryMessageReply>()) {
 			if (const auto to = reply->replyToMsg.get()) {
-				add(to, translatedTo, true);
+				add(to, true);
 			}
 		}
+#if 0 // I hope this is not needed, although I'm not sure.
+		if (item->groupId()) {
+			if (const auto group = _history->owner().groups().find(item)) {
+				for (const auto &other : group->items) {
+					if (other != item) {
+						add(other, true);
+					}
+				}
+			}
+		}
+#endif
 	}
 	const auto id = item->fullId();
 	const auto i = _itemsForRecognize.find(id);
@@ -162,7 +163,6 @@ void TranslateTracker::finishBunch() {
 			checkRecognized();
 		}
 	}
-	requestSome();
 	if (!_switchTranslations.empty()) {
 		auto switching = base::take(_switchTranslations);
 		for (const auto &[item, id] : switching) {
@@ -171,6 +171,7 @@ void TranslateTracker::finishBunch() {
 		_switchTranslations = std::move(switching);
 		_switchTranslations.clear();
 	}
+	requestSome();
 }
 
 void TranslateTracker::cancelToRequest() {

Telegram/SourceFiles/history/view/history_view_translate_tracker.h

@@ -7,9 +7,10 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 */
 #pragma once
 
+#include "spellcheck/spellcheck_types.h"
+
 class History;
 class HistoryItem;
-struct LanguageId;
 
 namespace HistoryView {
 
@@ -22,24 +23,24 @@ public:
 
 	[[nodiscard]] bool enoughForRecognition() const;
 	void startBunch();
-	void add(not_null<Element*> view, LanguageId translatedTo);
-	void add(not_null<HistoryItem*> item, LanguageId translatedTo);
+	void add(not_null<Element*> view);
+	void add(not_null<HistoryItem*> item);
 	void finishBunch();
 
 	[[nodiscard]] rpl::producer<bool> trackingLanguage() const;
 
 private:
 	using MaybeLanguageId = std::variant<QString, LanguageId>;
-	struct ItemForRecognize;
+	struct ItemForRecognize {
+		uint64 generation = 0;
+		MaybeLanguageId id;
+	};
 	struct ItemToRequest {
 		int length = 0;
 	};
 
 	void setup();
-	void add(
-		not_null<HistoryItem*> item,
-		LanguageId translatedTo,
-		bool skipDependencies);
+	void add(not_null<HistoryItem*> item, bool skipDependencies);
 	void recognizeCollected();
 	void trackSkipLanguages();
 	void checkRecognized();
@@ -58,6 +59,7 @@ private:
 	rpl::variable<bool> _trackingLanguage = false;
 	base::flat_map<FullMsgId, ItemForRecognize> _itemsForRecognize;
 	uint64 _generation = 0;
+	LanguageId _bunchTranslatedTo;
 	int _limit = 0;
 	int _addedInBunch = -1;
 	bool _allLoaded = false;

Telegram/SourceFiles/history/view/media/history_view_media_grouped.cpp

@@ -759,7 +759,10 @@ void GroupedMedia::unloadHeavyPart() {
 }
 
 void GroupedMedia::parentTextUpdated() {
-	history()->owner().requestViewResize(_parent);
+	if (_parent->media() == this) {
+		refreshCaption();
+		history()->owner().requestViewResize(_parent);
+	}
 }
 
 bool GroupedMedia::needsBubble() const {

Telegram/SourceFiles/ui/chat/pinned_bar.cpp

@@ -28,6 +28,14 @@ PinnedBar::PinnedBar(
 	_wrap.hide(anim::type::instant);
 	_shadow->hide();
 
+	_shadow->showOn(rpl::combine(
+		_wrap.shownValue(),
+		_wrap.heightValue(),
+		rpl::mappers::_1 && rpl::mappers::_2 > 0
+	) | rpl::filter([=](bool shown) {
+		return (shown == _shadow->isHidden());
+	}));
+
 	_wrap.entity()->paintRequest(
 	) | rpl::start_with_next([=](QRect clip) {
 		QPainter(_wrap.entity()).fillRect(clip, st::historyPinnedBg);
@@ -121,10 +129,6 @@ void PinnedBar::setRightButton(object_ptr<Ui::RpWidget> button) {
 
 void PinnedBar::updateControlsGeometry(QRect wrapGeometry) {
 	_bar->widget()->resizeToWidth(wrapGeometry.width());
-	const auto hidden = _wrap.isHidden() || !wrapGeometry.height();
-	if (_shadow->isHidden() != hidden) {
-		_shadow->setVisible(!hidden);
-	}
 	if (_right.button) {
 		_right.button->moveToRight(0, 0);
 	}
@@ -208,7 +212,8 @@ void PinnedBar::show() {
 	_forceHidden = false;
 	if (_shouldBeShown) {
 		_wrap.show(anim::type::instant);
-		_shadow->show();
+	} else if (!_wrap.isHidden() && !_wrap.animating()) {
+		_wrap.hide(anim::type::instant);
 	}
 }
 
@@ -218,7 +223,6 @@ void PinnedBar::hide() {
 	}
 	_forceHidden = true;
 	_wrap.hide(anim::type::instant);
-	_shadow->hide();
 }
 
 void PinnedBar::raise() {