Show viewers count in RTMP streams.

Telegram/Resources/langs/lang.strings

@@ -2411,6 +2411,8 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 "lng_group_call_rtmp_start" = "Start Streaming";
 "lng_group_call_rtmp_revoke" = "Revoke Stream Key";
 "lng_group_call_rtmp_revoke_sure" = "Are you sure you want to revoke your Server URL and Stream Key?";
+"lng_group_call_rtmp_viewers#one" = "{count} viewer";
+"lng_group_call_rtmp_viewers#other" = "{count} viewers";
 
 "lng_no_mic_permission" = "Telegram needs access to your microphone so that you can make calls and record voice messages.";
 

Telegram/SourceFiles/calls/calls.style

@@ -494,8 +494,9 @@ callErrorToast: Toast(defaultToast) {
 groupCallWidth: 380px;
 groupCallHeight: 580px;
 groupCallWidthRtmp: 720px;
+groupCallWidthRtmpMin: 240px;
 groupCallHeightRtmp: 580px;
-groupCallHeightRtmpMin: 280px;
+groupCallHeightRtmpMin: 160px;
 
 groupCallRipple: RippleAnimation(defaultRippleAnimation) {
 	color: groupCallMembersBgRipple;
@@ -773,6 +774,7 @@ groupCallTitleLabel: FlatLabel(groupCallSubtitleLabel) {
 		linkFontOver: font(semibold 14px);
 	}
 }
+groupCallTitleSeparator: 4px;
 groupCallVideoLimitLabel: FlatLabel(defaultFlatLabel) {
 	align: align(top);
 	textFg: groupCallMemberNotJoinedStatus;

Telegram/SourceFiles/calls/group/calls_group_panel.cpp

@@ -209,6 +209,8 @@ void Panel::migrate(not_null<ChannelData*> channel) {
 	_peerLifetime.destroy();
 	subscribeToPeerChanges();
 	_title.destroy();
+	_titleSeparator.destroy();
+	_viewers.destroy();
 	refreshTitle();
 }
 
@@ -925,6 +927,10 @@ void Panel::raiseControls() {
 	if (_title) {
 		_title->raise();
 	}
+	if (_viewers) {
+		_titleSeparator->raise();
+		_viewers->raise();
+	}
 	if (_recordingMark) {
 		_recordingMark->raise();
 	}
@@ -1029,6 +1035,7 @@ void Panel::updateWideControlsVisibility() {
 void Panel::subscribeToChanges(not_null<Data::GroupCall*> real) {
 	const auto livestream = real->peer()->isBroadcast();
 	const auto validateRecordingMark = [=](bool recording) {
+		recording = true; AssertIsDebug();
 		if (!recording && _recordingMark) {
 			_recordingMark.destroy();
 		} else if (recording && !_recordingMark) {
@@ -1439,6 +1446,12 @@ void Panel::showBox(
 		Ui::LayerOptions options,
 		anim::type animated) {
 	hideStickedTooltip(StickedTooltipHide::Unavailable);
+	if (window()->width() < st::groupCallWidth
+		|| window()->height() < st::groupCallWidth) {
+		window()->resize(
+			std::max(window()->width(), st::groupCallWidth),
+			std::max(window()->height(), st::groupCallWidth));
+	}
 	_layerBg->showBox(std::move(box), options, animated);
 }
 
@@ -1502,17 +1515,20 @@ void Panel::initGeometry() {
 	const auto height = _call->rtmp()
 		? st::groupCallHeightRtmp
 		: st::groupCallHeight;
-	const auto minHeight = (_call->rtmp() && !_call->canManage())
+	const auto minWidth = _call->rtmp()
+		? st::groupCallWidthRtmpMin
+		: st::groupCallWidth;
+	const auto minHeight = _call->rtmp()
 		? st::groupCallHeightRtmpMin
 		: st::groupCallHeight;
 	const auto rect = QRect(0, 0, width, height);
 	window()->setGeometry(rect.translated(center - rect.center()));
-	window()->setMinimumSize({ st::groupCallWidth, minHeight });
+	window()->setMinimumSize({ minWidth, minHeight });
 	window()->show();
 }
 
 QRect Panel::computeTitleRect() const {
-	const auto skip = st::groupCallTitleTop;
+	const auto skip = st::groupCallTitleSeparator;
 	const auto remove = skip
 		+ (_menuToggle
 			? (_menuToggle->width() + st::groupCallMenuTogglePosition.x())
@@ -1555,11 +1571,7 @@ bool Panel::updateMode() {
 		_niceTooltip.destroy();
 	}
 	_mode = mode;
-	if (_title) {
-		_title->setTextColorOverride(wide
-			? std::make_optional(st::groupCallMemberNotJoinedStatus->c)
-			: std::nullopt);
-	}
+	refreshTitleColors();
 	if (wide && _subtitle) {
 		_subtitle.destroy();
 	} else if (!wide && !_subtitle) {
@@ -1664,6 +1676,8 @@ void Panel::setupEmptyRtmp() {
 				(size.width() - _emptyRtmp->width()) / 2,
 				(size.height() - _emptyRtmp->height()) / 3);
 		}, _emptyRtmp->lifetime());
+
+		raiseControls();
 	}, lifetime());
 
 }
@@ -2322,6 +2336,38 @@ void Panel::refreshTitle() {
 			st::groupCallTitleLabel);
 		_title->show();
 		_title->setAttribute(Qt::WA_TransparentForMouseEvents);
+		if (_call->rtmp()) {
+			_titleSeparator.create(
+				widget(),
+				rpl::single(QString::fromUtf8("\xE2\x80\xA2")),
+				st::groupCallTitleLabel);
+			_titleSeparator->show();
+			_titleSeparator->setAttribute(Qt::WA_TransparentForMouseEvents);
+			auto countText = _call->real(
+			) | rpl::map([=](not_null<Data::GroupCall*> real) {
+				return tr::lng_group_call_rtmp_viewers(
+					lt_count,
+					real->fullCountValue(
+					) | rpl::map([=](int count) {
+						return std::max(float64(count), 1.);
+					}));
+			}) | rpl::flatten_latest(
+			) | rpl::after_next([=] {
+				refreshTitleGeometry();
+			});
+			_viewers.create(
+				widget(),
+				std::move(countText),
+				st::groupCallTitleLabel);
+			_viewers->show();
+			_viewers->setAttribute(Qt::WA_TransparentForMouseEvents);
+		}
+
+		refreshTitleColors();
+		style::PaletteChanged(
+		) | rpl::start_with_next([=] {
+			refreshTitleColors();
+		}, _title->lifetime());
 	}
 	refreshTitleGeometry();
 	if (!_subtitle && mode() == PanelMode::Default) {
@@ -2372,7 +2418,10 @@ void Panel::refreshTitleGeometry() {
 			fullRect.width() - _recordingMark->width(),
 			fullRect.height())
 		: fullRect;
-	const auto best = _title->naturalWidth();
+	const auto sep = st::groupCallTitleSeparator;
+	const auto best = _title->naturalWidth() + (_viewers
+		? (_titleSeparator->width() + sep * 2 + _viewers->naturalWidth())
+		: 0);
 	const auto from = (widget()->width() - best) / 2;
 	const auto shownTop = (mode() == PanelMode::Default)
 		? st::groupCallTitleTop
@@ -2386,23 +2435,35 @@ void Panel::refreshTitleGeometry() {
 				_wideControlsShown ? 1. : 0.)
 			: 1.));
 	const auto left = titleRect.x();
-	if (from >= left && from + best <= left + titleRect.width()) {
-		_title->resizeToWidth(best);
-		_title->moveToLeft(from, top);
-	} else if (titleRect.width() < best) {
-		_title->resizeToWidth(titleRect.width());
-		_title->moveToLeft(left, top);
-	} else if (from < left) {
-		_title->resizeToWidth(best);
-		_title->moveToLeft(left, top);
-	} else {
-		_title->resizeToWidth(best);
-		_title->moveToLeft(left + titleRect.width() - best, top);
+
+	const auto notEnough = std::max(0, best - titleRect.width());
+	const auto titleMaxWidth = _title->naturalWidth();
+	const auto viewersMaxWidth = _viewers ? _viewers->naturalWidth() : 0;
+	const auto viewersNotEnough = std::clamp(
+		viewersMaxWidth - titleMaxWidth,
+		0,
+		notEnough
+	) + std::max(
+		(notEnough - std::abs(viewersMaxWidth - titleMaxWidth)) / 2,
+		0);
+	_title->resizeToWidth(
+		_title->naturalWidth() - (notEnough - viewersNotEnough));
+	if (_viewers) {
+		_viewers->resizeToWidth(_viewers->naturalWidth() - viewersNotEnough);
+	}
+	const auto layout = [&](int position) {
+		_title->moveToLeft(position, top);
+		position += _title->width();
+		if (_viewers) {
+			_titleSeparator->moveToLeft(position + sep, top);
+			position += sep + _titleSeparator->width() + sep;
+			_viewers->moveToLeft(position, top);
+			position += _viewers->width();
 		}
 		if (_recordingMark) {
 			const auto markTop = top + st::groupCallRecordingMarkTop;
 			_recordingMark->move(
-			_title->x() + _title->width(),
+				position,
 				markTop - st::groupCallRecordingMarkSkip);
 		}
 		if (_titleBackground) {
@@ -2413,13 +2474,40 @@ void Panel::refreshTitleGeometry() {
 			_titleBackground->setGeometry(
 				_title->x() - st::boxRadius,
 				bottom - height,
-			(_title->width()
+				(position - _title->x()
 					+ st::boxRadius
 					+ (_recordingMark
 						? (_recordingMark->width() + st::boxRadius / 2)
 						: st::boxRadius)),
 				height);
 		}
+	};
+
+	if (from >= left && from + best <= left + titleRect.width()) {
+		layout(from);
+	} else if (titleRect.width() < best) {
+		layout(left);
+	} else if (from < left) {
+		layout(left);
+	} else {
+		layout(left + titleRect.width() - best);
+	}
+}
+
+void Panel::refreshTitleColors() {
+	if (!_title) {
+		return;
+	}
+	auto gray = st::groupCallMemberNotJoinedStatus->c;
+	const auto wide = (_mode.current() == PanelMode::Wide);
+	_title->setTextColorOverride(wide
+		? std::make_optional(gray)
+		: std::nullopt);
+	if (_viewers) {
+		_viewers->setTextColorOverride(gray);
+		gray.setAlphaF(gray.alphaF() * 0.5);
+		_titleSeparator->setTextColorOverride(gray);
+	}
 }
 
 void Panel::paint(QRect clip) {

Telegram/SourceFiles/calls/group/calls_group_panel.h

@@ -178,6 +178,7 @@ private:
 	[[nodiscard]] QRect computeTitleRect() const;
 	void refreshTitle();
 	void refreshTitleGeometry();
+	void refreshTitleColors();
 	void setupRealCallViewers();
 	void subscribeToChanges(not_null<Data::GroupCall*> real);
 
@@ -212,6 +213,8 @@ private:
 
 	object_ptr<Ui::RpWidget> _titleBackground = { nullptr };
 	object_ptr<Ui::FlatLabel> _title = { nullptr };
+	object_ptr<Ui::FlatLabel> _titleSeparator = { nullptr };
+	object_ptr<Ui::FlatLabel> _viewers = { nullptr };
 	object_ptr<Ui::FlatLabel> _subtitle = { nullptr };
 	object_ptr<Ui::AbstractButton> _recordingMark = { nullptr };
 	object_ptr<Ui::IconButton> _menuToggle = { nullptr };