Added author of channel post in tooltip.

- Added "const" to vars within HistoryMessageSigned::refresh().

Telegram/Resources/langs/lang.strings

@@ -1000,6 +1000,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 "lng_forwarded_via" = "Forwarded from {user} via {inline_bot}";
 "lng_forwarded_channel_via" = "Forwarded from {channel} via {inline_bot}";
 "lng_forwarded_signed" = "{channel} ({user})";
+"lng_signed_author" = "Author: {user}";
 "lng_in_reply_to" = "In reply to";
 "lng_edited" = "edited";
 "lng_edited_date" = "Edited: {date}";

Telegram/SourceFiles/history/history_inner_widget.cpp

@@ -3055,6 +3055,11 @@ QString HistoryInner::tooltipText() const {
 						QLocale::system().dateTimeFormat(
 							QLocale::LongFormat)));
 			}
+			if (const auto msgsigned = view->data()->Get<HistoryMessageSigned>()) {
+				if (msgsigned->isElided) {
+					dateText += '\n' + lng_signed_author(lt_user, msgsigned->author);
+				}
+			}
 			return dateText;
 		}
 	} else if (_mouseCursorState == CursorState::Forwarded

Telegram/SourceFiles/history/history_item_components.cpp

@@ -50,11 +50,12 @@ void HistoryMessageVia::resize(int32 availw) const {
 }
 
 void HistoryMessageSigned::refresh(const QString &date) {
-	auto time = qsl(", ") + date;
 	auto name = author;
-	auto timew = st::msgDateFont->width(time);
-	auto namew = st::msgDateFont->width(name);
-	if (timew + namew > st::maxSignatureSize) {
+	const auto time = qsl(", ") + date;
+	const auto timew = st::msgDateFont->width(time);
+	const auto namew = st::msgDateFont->width(name);
+	isElided = (timew + namew > st::maxSignatureSize);
+	if (isElided) {
 		name = st::msgDateFont->elided(author, st::maxSignatureSize - timew);
 	}
 	signature.setText(

Telegram/SourceFiles/history/history_item_components.h

@@ -37,6 +37,7 @@ struct HistoryMessageSigned : public RuntimeComponent<HistoryMessageSigned, Hist
 	void refresh(const QString &date);
 	int maxWidth() const;
 
+	bool isElided = false;
 	QString author;
 	Text signature;
 };