Handle pinned bar clicks.

Telegram/SourceFiles/data/data_messages.cpp

@@ -135,6 +135,7 @@ void MessagesList::addSlice(
 }
 
 void MessagesList::removeOne(MessagePosition messageId) {
+	auto update = MessagesSliceUpdate();
 	auto slice = ranges::lower_bound(
 		_slices,
 		messageId,
@@ -144,10 +145,16 @@ void MessagesList::removeOne(MessagePosition messageId) {
 		_slices.modify(slice, [&](Slice &slice) {
 			return slice.messages.remove(messageId);
 		});
+		update.messages = &slice->messages;
+		update.range = slice->range;
 	}
 	if (_count) {
 		--*_count;
 	}
+	update.count = _count;
+	if (update.messages) {
+		_sliceUpdated.fire(std::move(update));
+	}
 }
 
 void MessagesList::removeAll(ChannelId channelId) {
@@ -188,6 +195,8 @@ void MessagesList::removeLessThan(MessagePosition messageId) {
 				}
 			});
 			break;
+		} else {
+			break;
 		}
 	}
 	if (removed && _count) {

Telegram/SourceFiles/history/history_widget.cpp

@@ -4973,9 +4973,6 @@ void HistoryWidget::mousePressEvent(QMouseEvent *e) {
 		} else {
 			Ui::showPeerHistory(_peer, _editMsgId ? _editMsgId : replyToId());
 		}
-	//} else if (_inPinnedMsg) { // #TODO pinned
-	//	Assert(_pinnedBar != nullptr);
-	//	Ui::showPeerHistory(_peer, _pinnedBar->msgId);
 	}
 }
 
@@ -5266,6 +5263,14 @@ void HistoryWidget::checkPinnedBarState() {
 		hidePinnedMessage();
 	}, _pinnedBar->lifetime());
 
+	_pinnedBar->barClicks(
+	) | rpl::start_with_next([=] {
+		const auto id = _pinnedTracker->currentMessageId();
+		if (id.message) {
+			Ui::showPeerHistory(_peer, id.message);
+		}
+	}, _pinnedBar->lifetime());
+
 	_pinnedBarHeight = 0;
 	_pinnedBar->heightValue(
 	) | rpl::start_with_next([=](int height) {
@@ -6369,10 +6374,6 @@ void HistoryWidget::drawRecording(Painter &p, float64 recordActive) {
 //	//		}
 //	//		left += st::msgReplyBarSize.height() + st::msgReplyBarSkip - st::msgReplyBarSize.width() - st::msgReplyBarPos.x();
 //	//	}
-//	//} else {
-//	//	p.setFont(st::msgDateFont);
-//	//	p.setPen(st::historyComposeAreaFgService);
-//	//	p.drawText(left, top + (st::msgReplyBarSize.height() - st::msgDateFont->height) / 2 + st::msgDateFont->ascent, st::msgDateFont->elided(tr::lng_profile_loading(tr::now), width() - left - _pinnedBar->cancel->width() - st::msgReplyPadding.right()));
 //	//}
 //}
 

Telegram/SourceFiles/history/view/history_view_pinned_bar.cpp

@@ -35,7 +35,7 @@ namespace {
 		return Ui::MessageBarContent{
 			.id = item->id,
 			.title = ((type == PinnedIdType::First)
-				? "First message"
+				? tr::lng_pinned_previous(tr::now) // #TODO pinned first?
 				: (type == PinnedIdType::Middle)
 				? tr::lng_pinned_previous(tr::now)
 				: !poll
@@ -148,6 +148,24 @@ void PinnedBar::createControls() {
 		_close->raise();
 	}
 
+	// Clicks.
+	_bar->widget()->setCursor(style::cur_pointer);
+	_bar->widget()->events(
+	) | rpl::filter([=](not_null<QEvent*> event) {
+		return (event->type() == QEvent::MouseButtonPress);
+	}) | rpl::map([=] {
+		return _bar->widget()->events(
+		) | rpl::filter([=](not_null<QEvent*> event) {
+			return (event->type() == QEvent::MouseButtonRelease);
+		}) | rpl::take(1) | rpl::filter([=](not_null<QEvent*> event) {
+			return _bar->widget()->rect().contains(
+				static_cast<QMouseEvent*>(event.get())->pos());
+		});
+	}) | rpl::flatten_latest(
+	) | rpl::map([] {
+		return rpl::empty_value();
+	}) | rpl::start_to_stream(_barClicks, _bar->widget()->lifetime());
+
 	_bar->widget()->move(0, 0);
 	_bar->widget()->show();
 	_wrap.entity()->resize(_wrap.entity()->width(), _bar->widget()->height());
@@ -233,4 +251,8 @@ rpl::producer<> PinnedBar::closeClicks() const {
 		: (_close->clicks() | rpl::map([] { return rpl::empty_value(); }));
 }
 
-} // namespace HistoryView
+rpl::producer<> PinnedBar::barClicks() const {
+	return _barClicks.events();
+}
+
+} // namespace HistoryView

Telegram/SourceFiles/history/view/history_view_pinned_bar.h

@@ -51,6 +51,7 @@ public:
 	[[nodiscard]] int height() const;
 	[[nodiscard]] rpl::producer<int> heightValue() const;
 	[[nodiscard]] rpl::producer<> closeClicks() const;
+	[[nodiscard]] rpl::producer<> barClicks() const;
 
 	[[nodiscard]] rpl::lifetime &lifetime() {
 		return _wrap.lifetime();
@@ -64,6 +65,7 @@ private:
 	std::unique_ptr<Ui::IconButton> _close;
 	std::unique_ptr<Ui::PlainShadow> _shadow;
 	rpl::event_stream<Ui::MessageBarContent> _content;
+	rpl::event_stream<> _barClicks;
 	bool _shouldBeShown = false;
 	bool _forceHidden = false;
 

Telegram/SourceFiles/ui/chat/message_bar.cpp

@@ -49,12 +49,13 @@ MessageBar::BodyAnimation MessageBar::DetectBodyAnimationType(
 	const auto now = currentAnimation
 		? currentAnimation->bodyAnimation
 		: BodyAnimation::None;
+	const auto somethingChanged = (currentContent.text != nextContent.text)
+		|| (currentContent.id != nextContent.id);
 	return (now == BodyAnimation::Full
-		|| currentContent.title != nextContent.title)
+		|| currentContent.title != nextContent.title
+		|| (currentContent.title.isEmpty() && somethingChanged))
 		? BodyAnimation::Full
-		: (now == BodyAnimation::Text
+		: (now == BodyAnimation::Text || somethingChanged)
-			|| currentContent.text != nextContent.text
-			|| currentContent.id != nextContent.id)
 		? BodyAnimation::Text
 		: BodyAnimation::None;
 }
@@ -275,9 +276,20 @@ void MessageBar::paint(Painter &p) {
 		}
 	}
 	if (!_animation || _animation->bodyAnimation == BodyAnimation::None) {
-		p.setPen(_st.textFg);
+		if (_title.isEmpty()) {
-		p.setTextPalette(_st.textPalette);
+			// "Loading..." state.
-		_text.drawLeftElided(p, body.x(), text.y(), body.width(), width);
+			p.setPen(st::historyComposeAreaFgService);
+			_text.drawLeftElided(
+				p,
+				body.x(),
+				body.y() + (body.height() - st::normalFont->height) / 2,
+				body.width(),
+				width);
+		} else {
+			p.setPen(_st.textFg);
+			p.setTextPalette(_st.textPalette);
+			_text.drawLeftElided(p, body.x(), text.y(), body.width(), width);
+		}
 	} else if (_animation->bodyAnimation == BodyAnimation::Text) {
 		p.setOpacity(1. - progress);
 		p.drawPixmap(