Add premium promo for disable sharing.

Telegram/Resources/langs/lang.strings

@@ -2938,6 +2938,8 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 "lng_premium_summary_about_peer_colors" = "Choose a color and logo for your profile and replies to your messages.";
 "lng_premium_summary_subtitle_gifts" = "Telegram Gifts";
 "lng_premium_summary_about_gifts" = "Gifts are collectible items you can trade or showcase on your profile.";
+"lng_premium_summary_subtitle_no_forwards" = "Disable Sharing";
+"lng_premium_summary_about_no_forwards" = "Restrict forwarding, copying, and saving content from your private chats.";
 "lng_premium_summary_bottom_subtitle" = "About Telegram Premium";
 "lng_premium_summary_bottom_about" = "While the free version of Telegram already gives its users more than any other messaging application, **Telegram Premium** pushes its capabilities even further.\n\n**Telegram Premium** is a paid option, because most Premium Features require additional expenses from Telegram to third parties such as data center providers and server manufacturers. Contributions from **Telegram Premium** users allow us to cover such costs and also help Telegram stay free for everyone.";
 "lng_premium_summary_button" = "Subscribe for {cost} per month";

Telegram/SourceFiles/boxes/premium_preview_box.cpp

@@ -144,6 +144,8 @@ void PreloadSticker(const std::shared_ptr<Data::DocumentMedia> &media) {
 		return tr::lng_premium_summary_subtitle_peer_colors();
 	case PremiumFeature::Gifts:
 		return tr::lng_premium_summary_subtitle_gifts();
+	case PremiumFeature::NoForwards:
+		return tr::lng_premium_summary_subtitle_no_forwards();
 
 	case PremiumFeature::BusinessLocation:
 		return tr::lng_business_subtitle_location();
@@ -215,6 +217,8 @@ void PreloadSticker(const std::shared_ptr<Data::DocumentMedia> &media) {
 		return tr::lng_premium_summary_about_peer_colors();
 	case PremiumFeature::Gifts:
 		return tr::lng_premium_summary_about_gifts();
+	case PremiumFeature::NoForwards:
+		return tr::lng_premium_summary_about_no_forwards();
 
 	case PremiumFeature::BusinessLocation:
 		return tr::lng_business_about_location();
@@ -558,6 +562,7 @@ struct VideoPreviewDocument {
 		case PremiumFeature::TodoLists: return "todo";
 		case PremiumFeature::PeerColors: return "peer_colors";
 		case PremiumFeature::Gifts: return "gifts";
+		case PremiumFeature::NoForwards: return "no_forwards";
 
 		case PremiumFeature::BusinessLocation: return "business_location";
 		case PremiumFeature::BusinessHours: return "business_hours";

Telegram/SourceFiles/boxes/premium_preview_box.h

@@ -75,6 +75,7 @@ enum class PremiumFeature {
 	TodoLists,
 	PeerColors,
 	Gifts,
+	NoForwards,
 
 	// Business features.
 	BusinessLocation,

Telegram/SourceFiles/settings/sections/settings_premium.cpp

@@ -460,6 +460,15 @@ using Order = std::vector<QString>;
 				true,
 			},
 		},
+		{
+			u"no_forwards"_q,
+			Entry{
+				&st::settingsPremiumIconNoForwards,
+				tr::lng_premium_summary_subtitle_no_forwards(),
+				tr::lng_premium_summary_about_no_forwards(),
+				PremiumFeature::NoForwards,
+			},
+		},
 	};
 }
 
@@ -1021,6 +1030,8 @@ void TopBarWithSticker::resizeEvent(QResizeEvent *e) {
 		return tr::lng_premium_summary_subtitle_effects(tr::now);
 	} else if (key == u"todo"_q) {
 		return tr::lng_premium_summary_subtitle_todo_lists(tr::now);
+	} else if (key == u"no_forwards"_q) {
+		return tr::lng_premium_summary_subtitle_no_forwards(tr::now);
 	}
 	return QString();
 }
@@ -2097,6 +2108,8 @@ std::vector<PremiumFeature> PremiumFeaturesOrder(
 			return PremiumFeature::PeerColors;
 		} else if (s == u"gifts"_q) {
 			return PremiumFeature::Gifts;
+		} else if (s == u"no_forwards"_q) {
+			return PremiumFeature::NoForwards;
 		}
 		return PremiumFeature::kCount;
 	}) | ranges::views::filter([](PremiumFeature type) {

Telegram/SourceFiles/settings/settings.style

@@ -105,6 +105,7 @@ settingsPremiumIconBusiness: icon {{ "settings/premium/market", settingsIconFg }
 settingsPremiumIconEffects: icon {{ "settings/premium/effects", settingsIconFg }};
 settingsPremiumIconChecklist: icon {{ "settings/premium/checklist", settingsIconFg }};
 settingsPremiumIconPeerColors: icon {{ "settings/premium/peer_colors-24x24", settingsIconFg }};
+settingsPremiumIconNoForwards: icon {{ "menu/share_off-24x24", settingsIconFg }};
 
 settingsStoriesIconOrder: icon {{ "settings/premium/stories_order", premiumButtonBg1 }};
 settingsStoriesIconStealth: icon {{ "menu/stealth", premiumButtonBg1 }};

Telegram/SourceFiles/window/window_peer_menu.cpp

@@ -1410,7 +1410,7 @@ void ShowDisableSharingBox(
 				toggleNoForwards(true);
 				box->closeBox();
 			} else {
-				Settings::ShowPremium(controller, u"no_forwards"_q);
+				ShowPremiumPreviewBox(controller, PremiumFeature::NoForwards);
 			}
 		});
 		button->setText(
@@ -1473,7 +1473,7 @@ void Filler::addToggleNoForwards() {
 			if (peer->session().premium()) {
 				toggleNoForwards(true);
 			} else {
-				Settings::ShowPremium(controller, u"no_forwards"_q);
+				ShowPremiumPreviewBox(controller, PremiumFeature::NoForwards);
 			}
 			return;
 		}