Show exact option votes count in a tooltip.

Fixes #5505.

Telegram/SourceFiles/history/history_inner_widget.cpp

@@ -955,7 +955,7 @@ void HistoryInner::touchScrollUpdated(const QPoint &screenPos) {
 	touchUpdateSpeed();
 }
 
-QPoint HistoryInner::mapPointToItem(QPoint p, const Element *view) {
+QPoint HistoryInner::mapPointToItem(QPoint p, const Element *view) const {
 	if (view) {
 		const auto top = itemTop(view);
 		p.setY(p.y() - top);
@@ -964,7 +964,9 @@ QPoint HistoryInner::mapPointToItem(QPoint p, const Element *view) {
 	return QPoint();
 }
 
-QPoint HistoryInner::mapPointToItem(QPoint p, const HistoryItem *item) {
+QPoint HistoryInner::mapPointToItem(
+		QPoint p,
+		const HistoryItem *item) const {
 	return item ? mapPointToItem(p, item->mainView()) : QPoint();
 }
 
@@ -2524,7 +2526,8 @@ void HistoryInner::mouseActionUpdate() {
 	}
 	if (dragState.link
 		|| dragState.cursor == CursorState::Date
-		|| dragState.cursor == CursorState::Forwarded) {
+		|| dragState.cursor == CursorState::Forwarded
+		|| dragState.customTooltip) {
 		Ui::Tooltip::Show(1000, this);
 	}
 
@@ -3037,8 +3040,17 @@ QString HistoryInner::tooltipText() const {
 				return forwarded->text.originalText(AllTextSelection, ExpandLinksNone);
 			}
 		}
-	} else if (auto lnk = ClickHandler::getActive()) {
+	} else if (const auto lnk = ClickHandler::getActive()) {
 		return lnk->tooltip();
+	} else if (const auto view = App::mousedItem()) {
+		StateRequest request;
+		const auto local = mapFromGlobal(_mousePosition);
+		const auto point = _widget->clampMousePosition(local);
+		request.flags |= Text::StateRequest::Flag::LookupCustomTooltip;
+		const auto state = view->textState(
+			mapPointToItem(point, view),
+			request);
+		return state.customTooltipText;
 	}
 	return QString();
 }

Telegram/SourceFiles/history/history_inner_widget.h

@@ -199,8 +199,8 @@ private:
 	std::unique_ptr<QMimeData> prepareDrag();
 	void performDrag();
 
-	QPoint mapPointToItem(QPoint p, const Element *view);
+	QPoint mapPointToItem(QPoint p, const Element *view) const;
-	QPoint mapPointToItem(QPoint p, const HistoryItem *item);
+	QPoint mapPointToItem(QPoint p, const HistoryItem *item) const;
 
 	void showContextMenu(QContextMenuEvent *e, bool showFromTouch = false);
 	void cancelContextDownload(not_null<DocumentData*> document);

Telegram/SourceFiles/history/media/history_media_poll.cpp

@@ -730,10 +730,11 @@ void HistoryPoll::startAnswersAnimation() const {
 
 TextState HistoryPoll::textState(QPoint point, StateRequest request) const {
 	auto result = TextState(_parent);
-	if (!canVote() || !_poll->sendingVote.isEmpty()) {
+	if (!_poll->sendingVote.isEmpty()) {
 		return result;
 	}
 
+	const auto can = canVote();
 	const auto padding = st::msgPadding;
 	auto paintw = width();
 	auto tshift = st::historyPollQuestionTop;
@@ -750,8 +751,18 @@ TextState HistoryPoll::textState(QPoint point, StateRequest request) const {
 	for (const auto &answer : _answers) {
 		const auto height = countAnswerHeight(answer, paintw);
 		if (point.y() >= tshift && point.y() < tshift + height) {
+			if (can) {
 				_lastLinkPoint = point;
 				result.link = answer.handler;
+			} else {
+				result.customTooltip = true;
+				using Flag = Text::StateRequest::Flag;
+				if (request.flags & Flag::LookupCustomTooltip) {
+					result.customTooltipText = answer.votes
+						? lng_polls_votes_count(lt_count, answer.votes)
+						: lang(lng_polls_votes_none);
+				}
+			}
 			return result;
 		}
 		tshift += height;

Telegram/SourceFiles/history/view/history_view_cursor_state.h

@@ -50,7 +50,9 @@ struct TextState {
 	CursorState cursor = CursorState::None;
 	ClickHandlerPtr link;
 	bool afterSymbol = false;
+	bool customTooltip = false;
 	uint16 symbol = 0;
+	QString customTooltipText;
 
 };
 

Telegram/SourceFiles/ui/text/text.h

@@ -118,6 +118,7 @@ public:
 			BreakEverywhere     = (1 << 0),
 			LookupSymbol        = (1 << 1),
 			LookupLink          = (1 << 2),
+			LookupCustomTooltip = (1 << 3),
 		};
 		using Flags = base::flags<Flag>;
 		friend inline constexpr auto is_flag_type(Flag) { return true; };