Add edit voice chat title.

Telegram/SourceFiles/calls/calls.style

@@ -505,6 +505,27 @@ groupCallMultiSelect: MultiSelect(defaultMultiSelect) {
 	}
 }
 
+groupCallField: InputField(defaultInputField) {
+	textMargins: margins(2px, 7px, 2px, 0px);
+
+	textBg: transparent;
+	textFg: groupCallMembersFg;
+
+	placeholderFg: groupCallMemberNotJoinedStatus;
+	placeholderFgActive: groupCallMemberNotJoinedStatus;
+	placeholderFgError: groupCallMemberNotJoinedStatus;
+	placeholderMargins: margins(2px, 0px, 2px, 0px);
+	placeholderScale: 0.;
+	placeholderFont: normalFont;
+	heightMin: 32px;
+
+	borderFg: inputBorderFg;
+	borderFgActive: groupCallMemberInactiveStatus;
+	borderFgError: activeLineFgError;
+
+	menu: groupCallPopupMenu;
+}
+
 groupCallMembersTop: 62px;
 groupCallTitleTop: 14px;
 groupCallSubtitleTop: 33px;

Telegram/SourceFiles/calls/calls_group_call.cpp

@@ -705,6 +705,22 @@ void GroupCall::handleUpdate(const MTPDupdateGroupCallParticipants &data) {
 	}
 }
 
+void GroupCall::changeTitle(const QString &title) {
+	const auto real = _peer->groupCall();
+	if (!real || real->id() != _id || real->title() == title) {
+		return;
+	}
+
+	real->setTitle(title);
+	_api.request(MTPphone_EditGroupCallTitle(
+		inputCall(),
+		MTP_string(title)
+	)).done([=](const MTPUpdates &result) {
+		_peer->session().api().applyUpdates(result);
+	}).fail([=](const RPCError &error) {
+	}).send();
+}
+
 void GroupCall::createAndStartController() {
 	const auto &settings = Core::App().settings();
 

Telegram/SourceFiles/calls/calls_group_call.h

@@ -115,6 +115,7 @@ public:
 	void join(const MTPInputGroupCall &inputCall);
 	void handleUpdate(const MTPGroupCall &call);
 	void handleUpdate(const MTPDupdateGroupCallParticipants &data);
+	void changeTitle(const QString &title);
 
 	void setMuted(MuteState mute);
 	[[nodiscard]] MuteState muted() const {

Telegram/SourceFiles/calls/calls_group_panel.cpp

@@ -28,6 +28,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "data/data_user.h"
 #include "data/data_group_call.h"
 #include "data/data_session.h"
+#include "data/data_changes.h"
 #include "main/main_session.h"
 #include "base/event_filter.h"
 #include "boxes/peers/edit_participants_box.h"
@@ -324,6 +325,7 @@ GroupPanel::GroupPanel(not_null<GroupCall*> call)
 		_peer,
 		_window->lifetime(),
 		[=](not_null<ChannelData*> channel) { migrate(channel); });
+	setupRealCallViewers(call);
 
 	initWindow();
 	initWidget();
@@ -334,6 +336,22 @@ GroupPanel::GroupPanel(not_null<GroupCall*> call)
 
 GroupPanel::~GroupPanel() = default;
 
+void GroupPanel::setupRealCallViewers(not_null<GroupCall*> call) {
+	const auto peer = call->peer();
+	peer->session().changes().peerFlagsValue(
+		peer,
+		Data::PeerUpdate::Flag::GroupCall
+	) | rpl::map([=] {
+		return peer->groupCall();
+	}) | rpl::filter([=](Data::GroupCall *real) {
+		return _call && real && (real->id() == _call->id());
+	}) | rpl::take(
+		1
+	) | rpl::start_with_next([=](not_null<Data::GroupCall*> real) {
+		subscribeToChanges(real);
+	}, _window->lifetime());
+}
+
 bool GroupPanel::isActive() const {
 	return _window->isActiveWindow()
 		&& _window->isVisible()
@@ -565,6 +583,10 @@ void GroupPanel::initWithCall(GroupCall *call) {
 	}, _callLifetime);
 }
 
+void GroupPanel::subscribeToChanges(not_null<Data::GroupCall*> real) {
+	_titleText = real->titleValue();
+}
+
 void GroupPanel::addMembers() {
 	const auto real = _peer->groupCall();
 	if (!_call || !real || real->id() != _call->id()) {
@@ -829,32 +851,26 @@ void GroupPanel::updateControlsGeometry() {
 }
 
 void GroupPanel::refreshTitle() {
-	if (const auto titleRect = computeTitleRect()) {
+	if (computeTitleRect().has_value()) {
 		if (!_title) {
+			auto text = rpl::combine(
+				Info::Profile::NameValue(_peer),
+				_titleText.value()
+			) | rpl::map([=](
+					const TextWithEntities &name,
+					const QString &title) {
+				return title.isEmpty() ? name.text : title;
+			}) | rpl::after_next([=] {
+				refreshTitleGeometry();
+			});
 			_title.create(
 				widget(),
-				Info::Profile::NameValue(_peer),
+				rpl::duplicate(text),
 				st::groupCallTitleLabel);
 			_title->show();
 			_title->setAttribute(Qt::WA_TransparentForMouseEvents);
 		}
-		const auto best = _title->naturalWidth();
-		const auto from = (widget()->width() - best) / 2;
-		const auto top = st::groupCallTitleTop;
-		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);
-		}
+		refreshTitleGeometry();
 	} else if (_title) {
 		_title.destroy();
 	}
@@ -879,6 +895,30 @@ void GroupPanel::refreshTitle() {
 		top);
 }
 
+void GroupPanel::refreshTitleGeometry() {
+	const auto titleRect = computeTitleRect();
+	if (!_title || !titleRect) {
+		return;
+	}
+	const auto best = _title->naturalWidth();
+	const auto from = (widget()->width() - best) / 2;
+	const auto top = st::groupCallTitleTop;
+	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);
+	}
+}
+
 void GroupPanel::paint(QRect clip) {
 	Painter p(widget());
 

Telegram/SourceFiles/calls/calls_group_panel.h

@@ -19,6 +19,7 @@ class Image;
 namespace Data {
 class PhotoMedia;
 class CloudImageView;
+class GroupCall;
 } // namespace Data
 
 namespace Ui {
@@ -100,6 +101,9 @@ private:
 	[[nodiscard]] int computeMembersListTop() const;
 	[[nodiscard]] std::optional<QRect> computeTitleRect() const;
 	void refreshTitle();
+	void refreshTitleGeometry();
+	void setupRealCallViewers(not_null<GroupCall*> call);
+	void subscribeToChanges(not_null<Data::GroupCall*> real);
 
 	void migrate(not_null<ChannelData*> channel);
 	void subscribeToPeerChanges();
@@ -119,6 +123,7 @@ private:
 	object_ptr<Ui::FlatLabel> _title = { nullptr };
 	object_ptr<Ui::FlatLabel> _subtitle = { nullptr };
 	object_ptr<GroupMembers> _members;
+	rpl::variable<QString> _titleText;
 
 	object_ptr<Ui::CallButton> _settings;
 	std::unique_ptr<Ui::CallMuteButton> _mute;

Telegram/SourceFiles/calls/calls_group_settings.cpp

@@ -15,6 +15,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "ui/widgets/level_meter.h"
 #include "ui/widgets/continuous_sliders.h"
 #include "ui/widgets/buttons.h"
+#include "ui/widgets/input_fields.h"
 #include "ui/wrap/slide_wrap.h"
 #include "ui/text/text_utilities.h"
 #include "ui/toast/toast.h"
@@ -84,6 +85,28 @@ void SaveCallJoinMuted(
 			QString::number(delay / 1000., 'f', 2));
 }
 
+void EditGroupCallTitleBox(
+		not_null<Ui::GenericBox*> box,
+		const QString &placeholder,
+		const QString &title,
+		Fn<void(QString)> done) {
+	box->setTitle(tr::lng_group_call_edit_title());
+	const auto input = box->addRow(object_ptr<Ui::InputField>(
+		box,
+		st::groupCallField,
+		rpl::single(placeholder),
+		title));
+	box->setFocusCallback([=] {
+		input->setFocusFast();
+	});
+	box->addButton(tr::lng_settings_save(), [=] {
+		const auto result = input->getLastText();
+		box->closeBox();
+		done(result);
+	});
+	box->addButton(tr::lng_cancel(), [=] { box->closeBox(); });
+}
+
 } // namespace
 
 void GroupCallSettingsBox(
@@ -119,6 +142,7 @@ void GroupCallSettingsBox(
 	const auto canChangeJoinMuted = (goodReal && real->canChangeJoinMuted());
 	const auto addCheck = (peer->canManageGroupCall() && canChangeJoinMuted);
 	const auto addEditJoinAs = (call->possibleJoinAs().size() > 1);
+	const auto addEditTitle = peer->canManageGroupCall();
 	if (addCheck || addEditJoinAs) {
 		AddSkip(layout);
 	}
@@ -128,6 +152,12 @@ void GroupCallSettingsBox(
 			tr::lng_group_call_display_as_header(),
 			st::groupCallSettingsButton).get()
 		: nullptr;
+	const auto editTitle = (goodReal && addEditTitle)
+		? AddButton(
+			layout,
+			tr::lng_group_call_edit_title(),
+			st::groupCallSettingsButton).get()
+		: nullptr;
 	if (editJoinAs) {
 		editJoinAs->setClickedCallback([=] {
 			const auto context = Group::ChooseJoinAsProcess::Context::Switch;
@@ -145,6 +175,18 @@ void GroupCallSettingsBox(
 				call->joinAs());
 		});
 	}
+	if (editTitle) {
+		editTitle->setClickedCallback([=] {
+			const auto done = [=](const QString &title) {
+				call->changeTitle(title);
+			};
+			box->getDelegate()->show(Box(
+				EditGroupCallTitleBox,
+				peer->name,
+				goodReal ? real->title() : QString(),
+				done));
+		});
+	}
 	const auto muteJoined = addCheck
 		? AddButton(
 			layout,

Telegram/SourceFiles/data/data_group_call.cpp

@@ -175,10 +175,12 @@ void GroupCall::applyUpdate(const MTPGroupCall &update) {
 
 void GroupCall::applyCall(const MTPGroupCall &call, bool force) {
 	call.match([&](const MTPDgroupCall &data) {
+		const auto title = qs(data.vtitle().value_or_empty());
 		const auto changed = (_version != data.vversion().v)
 			|| (_fullCount.current() != data.vparticipants_count().v)
 			|| (_joinMuted != data.is_join_muted())
-			|| (_canChangeJoinMuted != data.is_can_change_join_muted());
+			|| (_canChangeJoinMuted != data.is_can_change_join_muted())
+			|| (_title.current() != title);
 		if (!force && !changed) {
 			return;
 		} else if (!force && _version > data.vversion().v) {
@@ -189,6 +191,7 @@ void GroupCall::applyCall(const MTPGroupCall &call, bool force) {
 		_canChangeJoinMuted = data.is_can_change_join_muted();
 		_version = data.vversion().v;
 		_fullCount = data.vparticipants_count().v;
+		_title = title;
 		changePeerEmptyCallFlag();
 	}, [&](const MTPDgroupCallDiscarded &data) {
 		const auto id = _id;

Telegram/SourceFiles/data/data_group_call.h

@@ -28,6 +28,15 @@ public:
 	[[nodiscard]] uint64 id() const;
 	[[nodiscard]] not_null<PeerData*> peer() const;
 	[[nodiscard]] MTPInputGroupCall input() const;
+	[[nodiscard]] QString title() const {
+		return _title.current();
+	}
+	[[nodiscard]] rpl::producer<QString> titleValue() const {
+		return _title.value();
+	}
+	void setTitle(const QString &title) {
+		_title = title;
+	}
 
 	void setPeer(not_null<PeerData*> peer);
 
@@ -105,6 +114,7 @@ private:
 	int _version = 0;
 	mtpRequestId _participantsRequestId = 0;
 	mtpRequestId _reloadRequestId = 0;
+	rpl::variable<QString> _title;
 
 	std::vector<Participant> _participants;
 	base::flat_map<uint32, not_null<PeerData*>> _participantPeerBySsrc;