Allow disabling fast reply button.

Telegram/SourceFiles/history/history_inner_widget.cpp

@@ -450,6 +450,14 @@ HistoryInner::HistoryInner(
 		}
 	}, lifetime());
 
+	Core::App().settings().cornerReplyValue(
+	) | rpl::on_next([=](bool value) {
+		_useCornerReply = value;
+		if (!value) {
+			_replyButtonManager->updateButton({});
+		}
+	}, lifetime());
+
 	controller->adaptive().chatWideValue(
 	) | rpl::on_next([=](bool wide) {
 		_isChatWide = wide;
@@ -4324,6 +4332,9 @@ auto HistoryInner::replyButtonParameters(
 	QPoint position,
 	const HistoryView::TextState &replyState) const
 -> HistoryView::ReplyButton::ButtonParameters {
+	if (!_useCornerReply) {
+		return {};
+	}
 	const auto top = itemTop(view);
 	if (top < 0
 		|| _mouseAction == MouseAction::Dragging

Telegram/SourceFiles/history/history_inner_widget.h

@@ -537,6 +537,7 @@ private:
 	bool _dragStateUserpic = false;
 	bool _pressWasInactive = false;
 	bool _recountedAfterPendingResizedItems = false;
+	bool _useCornerReply = false;
 	bool _useCornerReaction = false;
 	bool _acceptsHorizontalScroll = false;
 	bool _horizontalScrollLocked = false;

Telegram/SourceFiles/history/view/history_view_list_widget.cpp

@@ -527,6 +527,16 @@ ListWidget::ListWidget(
 		}, lifetime());
 	}
 
+	if (_replyButtonManager) {
+		Core::App().settings().cornerReplyValue(
+		) | rpl::on_next([=](bool value) {
+			_useCornerReply = value;
+			if (!value) {
+				_replyButtonManager->updateButton({});
+			}
+		}, lifetime());
+	}
+
 	_delegate->listChatWideValue(
 	) | rpl::on_next([=](bool wide) {
 		_isChatWide = wide;
@@ -3626,6 +3636,9 @@ ReplyButton::ButtonParameters ListWidget::replyButtonParameters(
 		not_null<const Element*> view,
 		QPoint position,
 		const TextState &replyState) const {
+	if (!_useCornerReply) {
+		return {};
+	}
 	const auto top = itemTop(view);
 	if (top < 0
 		|| _mouseAction == MouseAction::Dragging

Telegram/SourceFiles/history/view/history_view_list_widget.h

@@ -788,6 +788,7 @@ private:
 
 	std::unique_ptr<HistoryView::Reactions::Manager> _reactionsManager;
 	rpl::variable<HistoryItem*> _reactionsItem;
+	bool _useCornerReply = false;
 	bool _useCornerReaction = false;
 
 	std::unique_ptr<ReplyButton::Manager> _replyButtonManager;

Telegram/SourceFiles/history/view/history_view_reply_button.cpp

@@ -16,7 +16,7 @@ namespace HistoryView::ReplyButton {
 namespace {
 
 constexpr auto kToggleDuration = crl::time(120);
-constexpr auto kButtonShowDelay = crl::time(300);
+constexpr auto kButtonShowDelay = crl::time(0);
 constexpr auto kButtonHideDelay = crl::time(300);
 
 [[nodiscard]] float64 ScaleForState(ButtonState state) {
@@ -344,7 +344,11 @@ void Manager::removeStaleButtons() {
 }
 
 void Manager::clearAppearAnimations() {
-	_buttonHiding.clear();
+	for (const auto &button : base::take(_buttonHiding)) {
+		if (!button->isHidden()) {
+			button->repaint();
+		}
+	}
 }
 
 } // namespace HistoryView::ReplyButton

Telegram/SourceFiles/history/view/history_view_reply_button.h

@@ -68,6 +68,10 @@ public:
 	[[nodiscard]] float64 currentScale() const;
 	[[nodiscard]] float64 currentOpacity() const;
 
+	void repaint() const {
+		_update(_geometry);
+	}
+
 private:
 	void updateGeometry(Fn<void(QRect)> update);
 	void applyState(ButtonState state, Fn<void(QRect)> update);