Restricted removing of poll answer by time from app config.

Telegram/SourceFiles/history/history_inner_widget.cpp

@@ -81,6 +81,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "base/qt/qt_key_modifiers.h"
 #include "base/unixtime.h"
 #include "base/call_delayed.h"
+#include "main/main_app_config.h"
 #include "main/main_session.h"
 #include "main/main_session_settings.h"
 #include "mainwidget.h"
@@ -3003,7 +3004,24 @@ void HistoryInner::showContextMenu(QContextMenuEvent *e, bool showFromTouch) {
 							TextUtilities::SetClipboardText(text);
 						},
 						&st::menuIconCopy);
-					if (poll->creator() && a->addedDate) {
+					const auto canDelete = [&] {
+						if (!a->addedDate) {
+							return false;
+						}
+						if (poll->creator()) {
+							return true;
+						}
+						if (a->addedBy
+							&& a->addedBy->isSelf()) {
+							const auto period = poll->session()
+								.appConfig()
+								.pollAnswerDeletePeriod();
+							return (base::unixtime::now() - a->addedDate)
+								< period;
+						}
+						return false;
+					}();
+					if (canDelete) {
 						const auto itemId = item->fullId();
 						const auto option = pollOptionLink;
 						_menu->addAction(

Telegram/SourceFiles/history/view/history_view_context_menu.cpp

@@ -87,6 +87,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "window/window_session_controller.h"
 #include "lang/lang_keys.h"
 #include "core/application.h"
+#include "main/main_app_config.h"
 #include "main/main_session.h"
 #include "main/main_session_settings.h"
 #include "spellcheck/spellcheck_types.h"
@@ -1323,7 +1324,24 @@ base::unique_qptr<Ui::PopupMenu> FillContextMenu(
 								TextUtilities::SetClipboardText(text);
 							},
 							&st::menuIconCopy);
-						if (poll->creator() && a->addedDate) {
+						const auto canDelete = [&] {
+							if (!a->addedDate) {
+								return false;
+							}
+							if (poll->creator()) {
+								return true;
+							}
+							if (a->addedBy
+								&& a->addedBy->isSelf()) {
+								const auto period = poll->session()
+									.appConfig()
+									.pollAnswerDeletePeriod();
+								return (base::unixtime::now() - a->addedDate)
+									< period;
+							}
+							return false;
+						}();
+						if (canDelete) {
 							const auto itemId = item->fullId();
 							result->addAction(
 								tr::lng_context_delete_poll_option(tr::now),

Telegram/SourceFiles/main/main_app_config.cpp

@@ -208,6 +208,10 @@ int AppConfig::pollOptionsLimit() const {
 	return get<int>(u"poll_answers_max"_q, 12);
 }
 
+int AppConfig::pollAnswerDeletePeriod() const {
+	return get<int>(u"poll_answer_delete_period"_q, 300);
+}
+
 int AppConfig::todoListItemsLimit() const {
 	return get<int>(
 		u"todo_items_max"_q,

Telegram/SourceFiles/main/main_app_config.h

@@ -105,6 +105,7 @@ public:
 	[[nodiscard]] int giftResaleNanoTonThousandths() const;
 
 	[[nodiscard]] int pollOptionsLimit() const;
+	[[nodiscard]] int pollAnswerDeletePeriod() const;
 	[[nodiscard]] int todoListItemsLimit() const;
 	[[nodiscard]] int todoListTitleLimit() const;
 	[[nodiscard]] int todoListItemTextLimit() const;