Add push-to-talk release delay.

Telegram/Resources/langs/lang.strings

@@ -1839,6 +1839,9 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 "lng_group_call_push_to_talk" = "Push to Talk";
 "lng_group_call_ptt_shortcut" = "Edit Shortcut";
 "lng_group_call_ptt_recording" = "Stop Recording";
+"lng_group_call_ptt_delay_ms" = "{amount} ms";
+"lng_group_call_ptt_delay_s" = "{amount}s";
+"lng_group_call_ptt_delay" = "Push to Talk release delay: {delay}";
 "lng_group_call_share" = "Share Invite Link";
 "lng_group_call_end" = "End Voice Chat";
 "lng_group_call_join" = "Join";

Telegram/SourceFiles/calls/calls.style

@@ -670,6 +670,23 @@ groupCallBoxLabel: FlatLabel(boxLabel) {
 groupCallRowBlobMinRadius: 27px;
 groupCallRowBlobMaxRadius: 29px;
 
+groupCallDelayLabel: LabelSimple(defaultLabelSimple) {
+	textFg: groupCallMembersFg;
+	font: boxTextFont;
+}
+groupCallDelayLabelMargin: margins(22px, 10px, 20px, 5px);
+groupCallDelaySlider: MediaSlider(defaultContinuousSlider) {
+	seekSize: size(15px, 15px);
+	activeFg: groupCallActiveFg;
+	inactiveFg: groupCallMemberNotJoinedStatus;
+	activeFgOver: groupCallActiveFg;
+	inactiveFgOver: groupCallMemberNotJoinedStatus;
+	activeFgDisabled: groupCallActiveFg;
+	inactiveFgDisabled: groupCallMemberNotJoinedStatus;
+	receivedTillFg: groupCallMemberNotJoinedStatus;
+}
+groupCallDelayMargin: margins(22px, 5px, 20px, 10px);
+
 callTopBarMuteCrossLine: CrossLineAnimation {
 	fg: callBarFg;
 	icon: icon {{ "calls/call_record_active", callBarFg }};

Telegram/SourceFiles/calls/calls_group_call.cpp

@@ -52,7 +52,8 @@ GroupCall::GroupCall(
 , _history(channel->owner().history(channel))
 , _api(&_channel->session().mtp())
 , _lastSpokeCheckTimer([=] { checkLastSpoke(); })
-, _checkJoinedTimer([=] { checkJoined(); }) {
+, _checkJoinedTimer([=] { checkJoined(); })
+, _pushToTalkCancelTimer([=] { pushToTalkCancel(); }) {
 	_muted.value(
 	) | rpl::combine_previous(
 	) | rpl::start_with_next([=](MuteState previous, MuteState state) {
@@ -781,12 +782,28 @@ void GroupCall::applyGlobalShortcutChanges() {
 	}
 	_pushToTalk = shortcut;
 	_shortcutManager->startWatching(_pushToTalk, [=](bool pressed) {
-		if (muted() != MuteState::ForceMuted
-			&& muted() != MuteState::Active) {
-			setMuted(pressed ? MuteState::PushToTalk : MuteState::Muted);
+		const auto delay = Core::App().settings().groupCallPushToTalkDelay();
+		if (muted() == MuteState::ForceMuted
+			|| muted() == MuteState::Active) {
+			return;
+		} else if (pressed) {
+			_pushToTalkCancelTimer.cancel();
+			setMuted(MuteState::PushToTalk);
+		} else if (delay) {
+			_pushToTalkCancelTimer.callOnce(delay);
+		} else {
+			pushToTalkCancel();
 		}
 	});
 }
+
+void GroupCall::pushToTalkCancel() {
+	_pushToTalkCancelTimer.cancel();
+	if (muted() == MuteState::PushToTalk) {
+		setMuted(MuteState::Muted);
+	}
+}
+
 //void GroupCall::setAudioVolume(bool input, float level) {
 //	if (_instance) {
 //		if (input) {

Telegram/SourceFiles/calls/calls_group_call.h

@@ -152,6 +152,7 @@ private:
 		gsl::span<const std::pair<std::uint32_t, float>> data);
 	void setInstanceConnected(bool connected);
 	void checkLastSpoke();
+	void pushToTalkCancel();
 
 	void checkJoined();
 
@@ -183,6 +184,7 @@ private:
 
 	std::shared_ptr<GlobalShortcutManager> _shortcutManager;
 	std::shared_ptr<GlobalShortcutValue> _pushToTalk;
+	base::Timer _pushToTalkCancelTimer;
 	bool _pushToTalkStarted = false;
 
 	rpl::lifetime _lifetime;

Telegram/SourceFiles/calls/calls_group_settings.cpp

@@ -11,6 +11,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "calls/calls_group_panel.h" // LeaveGroupCallBox.
 #include "calls/calls_instance.h"
 #include "ui/widgets/level_meter.h"
+#include "ui/widgets/continuous_sliders.h"
 #include "ui/widgets/buttons.h"
 #include "ui/wrap/slide_wrap.h"
 #include "ui/toast/toast.h"
@@ -36,6 +37,8 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 namespace Calls {
 namespace {
 
+constexpr auto kDelaysCount = 201;
+
 void SaveCallJoinMuted(
 		not_null<ChannelData*> channel,
 		uint64 callId,
@@ -56,6 +59,22 @@ void SaveCallJoinMuted(
 	)).send();
 }
 
+[[nodiscard]] crl::time DelayByIndex(int index) {
+	return index * crl::time(10);
+}
+
+[[nodiscard]] QString FormatDelay(crl::time delay) {
+	return (delay < crl::time(1000))
+		? tr::lng_group_call_ptt_delay_ms(
+			tr::now,
+			lt_amount,
+			QString::number(delay))
+		: tr::lng_group_call_ptt_delay_s(
+			tr::now,
+			lt_amount,
+			QString::number(delay / 1000., 'f', 2));
+}
+
 } // namespace
 
 void GroupCallSettingsBox(
@@ -164,6 +183,7 @@ void GroupCallSettingsBox(
 		rpl::variable<QString> recordText = tr::lng_group_call_ptt_shortcut();
 		rpl::variable<QString> shortcutText;
 		GlobalShortcut shortcut;
+		crl::time delay = 0;
 		bool recording = false;
 	};
 	const auto manager = call->ensureGlobalShortcutManager();
@@ -171,6 +191,7 @@ void GroupCallSettingsBox(
 		const auto state = box->lifetime().make_state<PushToTalkState>();
 		state->shortcut = manager->shortcutFromSerialized(
 			settings.groupCallPushToTalkShortcut());
+		state->delay = settings.groupCallPushToTalkDelay();
 		state->shortcutText = state->shortcut
 			? state->shortcut->toDisplayString()
 			: QString();
@@ -240,16 +261,40 @@ void GroupCallSettingsBox(
 			recordingWrap->toggle(toggled, anim::type::normal);
 		}, pushToTalk->lifetime());
 
+		const auto label = layout->add(
+			object_ptr<Ui::LabelSimple>(layout, st::groupCallDelayLabel),
+			st::groupCallDelayLabelMargin);
+		const auto value = std::clamp(
+			state->delay,
+			crl::time(0),
+			DelayByIndex(kDelaysCount - 1));
+		const auto callback = [=](crl::time delay) {
+			state->delay = delay;
+			label->setText(tr::lng_group_call_ptt_delay(
+				tr::now,
+				lt_delay,
+				FormatDelay(delay)));
+			Core::App().settings().setGroupCallPushToTalkDelay(delay);
+			Core::App().saveSettingsDelayed();
+		};
+		callback(value);
+		const auto slider = layout->add(
+			object_ptr<Ui::MediaSlider>(layout, st::groupCallDelaySlider),
+			st::groupCallDelayMargin);
+		slider->resize(st::groupCallDelaySlider.seekSize);
+		slider->setPseudoDiscrete(
+			kDelaysCount,
+			DelayByIndex,
+			value,
+			callback);
+
 		box->boxClosing(
 		) | rpl::start_with_next([=] {
 			call->applyGlobalShortcutChanges();
 		}, box->lifetime());
 
 		auto boxKeyFilter = [=](not_null<QEvent*> e) {
-			if (e->type() != QEvent::KeyPress) {
-				return base::EventFilterResult::Continue;
-			}
-			return (state->recording)
+			return (e->type() == QEvent::KeyPress && state->recording)
 				? base::EventFilterResult::Cancel
 				: base::EventFilterResult::Continue;
 		};

Telegram/SourceFiles/core/core_settings.cpp

@@ -111,7 +111,8 @@ QByteArray Settings::serialize() const {
 			<< _callVideoInputDeviceId
 			<< qint32(_ipRevealWarning ? 1 : 0)
 			<< qint32(_groupCallPushToTalk ? 1 : 0)
-			<< _groupCallPushToTalkShortcut;
+			<< _groupCallPushToTalkShortcut
+			<< qint64(_groupCallPushToTalkDelay);
 	}
 	return result;
 }
@@ -181,6 +182,7 @@ void Settings::addFromSerialized(const QByteArray &serialized) {
 	qint32 ipRevealWarning = _ipRevealWarning ? 1 : 0;
 	qint32 groupCallPushToTalk = _groupCallPushToTalk ? 1 : 0;
 	QByteArray groupCallPushToTalkShortcut = _groupCallPushToTalkShortcut;
+	qint64 groupCallPushToTalkDelay = _groupCallPushToTalkDelay;
 
 	stream >> themesAccentColors;
 	if (!stream.atEnd()) {
@@ -270,9 +272,11 @@ void Settings::addFromSerialized(const QByteArray &serialized) {
 	if (!stream.atEnd()) {
 		stream
 			>> groupCallPushToTalk
-			>> groupCallPushToTalkShortcut;
+			>> groupCallPushToTalkShortcut
+			>> groupCallPushToTalkDelay;
 	}
-	if (stream.status() != QDataStream::Ok) {
+	if (false && stream.status() != QDataStream::Ok) {
+		AssertIsDebug();
 		LOG(("App Error: "
 			"Bad data for Core::Settings::constructFromSerialized()"));
 		return;
@@ -365,6 +369,7 @@ void Settings::addFromSerialized(const QByteArray &serialized) {
 	_systemDarkModeEnabled = (systemDarkModeEnabled == 1);
 	_groupCallPushToTalk = (groupCallPushToTalk == 1);
 	_groupCallPushToTalkShortcut = groupCallPushToTalkShortcut;
+	_groupCallPushToTalkDelay = groupCallPushToTalkDelay;
 }
 
 bool Settings::chatWide() const {
@@ -471,6 +476,10 @@ void Settings::resetOnLastLogout() {
 	//_callInputVolume = 100;
 	//_callAudioDuckingEnabled = true;
 
+	_groupCallPushToTalk = false;
+	_groupCallPushToTalkShortcut = QByteArray();
+	_groupCallPushToTalkDelay = 20;
+
 	//_themesAccentColors = Window::Theme::AccentColors();
 
 	_lastSeenWarningSeen = false;

Telegram/SourceFiles/core/core_settings.h

@@ -229,6 +229,12 @@ public:
 	void setGroupCallPushToTalkShortcut(const QByteArray &serialized) {
 		_groupCallPushToTalkShortcut = serialized;
 	}
+	[[nodiscard]] crl::time groupCallPushToTalkDelay() const {
+		return _groupCallPushToTalkDelay;
+	}
+	void setGroupCallPushToTalkDelay(crl::time delay) {
+		_groupCallPushToTalkDelay = delay;
+	}
 	[[nodiscard]] Window::Theme::AccentColors &themesAccentColors() {
 		return _themesAccentColors;
 	}
@@ -527,6 +533,7 @@ private:
 	bool _callAudioDuckingEnabled = true;
 	bool _groupCallPushToTalk = false;
 	QByteArray _groupCallPushToTalkShortcut;
+	crl::time _groupCallPushToTalkDelay = 20;
 	Window::Theme::AccentColors _themesAccentColors;
 	bool _lastSeenWarningSeen = false;
 	Ui::SendFilesWay _sendFilesWay;