Confirm enable sharing request sending.

Telegram/Resources/langs/lang.strings

@@ -1909,6 +1909,9 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 "lng_disable_sharing_button" = "Disable Sharing";
 "lng_disable_sharing_toast" = "Sharing disabled for this chat.";
 "lng_enable_sharing_toast" = "Sharing enabled for this chat.";
+"lng_enable_sharing_request_title" = "Enable Sharing";
+"lng_enable_sharing_request_text" = "You need **{name}'s** approval to enable sharing. Send a request?";
+"lng_enable_sharing_request_button" = "Send Request";
 
 "lng_action_no_forwards_you_disabled" = "You disabled sharing in this chat.";
 "lng_action_no_forwards_you_enabled" = "You enabled sharing in this chat.";

Telegram/SourceFiles/data/data_session.cpp

@@ -1309,6 +1309,21 @@ void Session::maybeStopWatchForOffline(not_null<UserData*> user) {
 	}
 }
 
+void Session::recordSharingDisabledTime(not_null<UserData*> user) {
+	_sharingDisabledTimes[user] = base::unixtime::now();
+}
+
+bool Session::sharingRecentlyDisabledByMe(
+		not_null<UserData*> user) const {
+	const auto i = _sharingDisabledTimes.find(user);
+	return (i != end(_sharingDisabledTimes))
+		&& (base::unixtime::now() - i->second < 86400);
+}
+
+void Session::clearSharingDisabledTime(not_null<UserData*> user) {
+	_sharingDisabledTimes.remove(user);
+}
+
 void Session::checkLocalUsersWentOffline() {
 	_watchForOfflineTimer.cancel();
 

Telegram/SourceFiles/data/data_session.h

@@ -286,6 +286,11 @@ public:
 	void watchForOffline(not_null<UserData*> user, TimeId now = 0);
 	void maybeStopWatchForOffline(not_null<UserData*> user);
 
+	void recordSharingDisabledTime(not_null<UserData*> user);
+	[[nodiscard]] bool sharingRecentlyDisabledByMe(
+		not_null<UserData*> user) const;
+	void clearSharingDisabledTime(not_null<UserData*> user);
+
 	[[nodiscard]] auto invitedToCallUsers(CallId callId) const
 		-> const base::flat_map<not_null<UserData*>, bool> &;
 	void registerInvitedToCallUser(
@@ -1285,6 +1290,7 @@ private:
 
 	base::flat_map<not_null<UserData*>, TimeId> _watchingForOffline;
 	base::Timer _watchForOfflineTimer;
+	base::flat_map<not_null<UserData*>, TimeId> _sharingDisabledTimes;
 
 	base::flat_map<not_null<PeerData*>, MTP::DcId> _peerStatsDcIds;
 

Telegram/SourceFiles/data/data_user.cpp

@@ -656,6 +656,9 @@ void UserData::setNoForwardsFlags(bool myEnabled, bool peerEnabled) {
 	setFlags((flags() & ~mask)
 		| (myEnabled ? Flag::NoForwardsMyEnabled : Flag())
 		| (peerEnabled ? Flag::NoForwardsPeerEnabled : Flag()));
+	if (!myEnabled && !peerEnabled) {
+		owner().clearSharingDisabledTime(this);
+	}
 }
 
 int UserData::starsPerMessage() const {

Telegram/SourceFiles/window/window_peer_menu.cpp

@@ -1448,6 +1448,11 @@ void Filler::addToggleNoForwards() {
 			MTPint()
 		)).done([=](const MTPUpdates &result) {
 			peer->session().api().applyUpdates(result);
+			if (enabled) {
+				if (const auto user = peer->asUser()) {
+					peer->session().data().recordSharingDisabledTime(user);
+				}
+			}
 		}).fail([=](const MTP::Error &error) {
 			if (error.type() != u"CHAT_NOT_MODIFIED"_q) {
 				controller->showToast(error.type());
@@ -1461,7 +1466,27 @@ void Filler::addToggleNoForwards() {
 		if (controller->showFrozenError()) {
 			return;
 		} else if (disabledNow) {
+			const auto willBeRequest = true
+				&& (user->flags() & UserDataFlag::NoForwardsPeerEnabled)
+				&& !peer->session().data().sharingRecentlyDisabledByMe(user);
+			if (willBeRequest) {
+				controller->show(Ui::MakeConfirmBox({
+					.text = tr::lng_enable_sharing_request_text(
+						tr::now,
+						lt_name,
+						tr::marked(user->shortName()),
+						tr::rich),
+					.confirmed = [=](Fn<void()> close) {
 						toggleNoForwards(false);
+						controller->showPeerHistory(peer->id);
+						close();
+					},
+					.confirmText = tr::lng_enable_sharing_request_button(),
+					.title = tr::lng_enable_sharing_request_title(),
+				}));
+			} else {
+				toggleNoForwards(false);
+			}
 			return;
 		}
 		auto &settings = peer->session().settings();