Facebook: Fix reseting chat name

When user changed thread name from website and set it to "", in Miranda it previously stay "". Now it correctly generates new name from participant names.

1 files changed, 37 insertions, 2 deletions

diff --git a/protocols/FacebookRM/src/chat.cpp b/protocols/FacebookRM/src/chat.cpp
index d271b544f9..126976137f 100644
--- a/protocols/FacebookRM/src/chat.cpp
+++ b/protocols/FacebookRM/src/chat.cpp
@@ -3,7 +3,7 @@
 Facebook plugin for Miranda Instant Messenger
 _____________________________________________
 
-Copyright � 2011-17 Robert P�sel
+Copyright © 2011-17 Robert Pösel
 
 This program is free software: you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by
@@ -432,4 +432,39 @@ void FacebookProto::UpdateNotificationsChatRoom(facebook_notification *notificat
 	gce.ptszUID = idT;
 
 	Chat_Event(&gce);
-}
\ No newline at end of file
+}
+
+std::string FacebookProto::GenerateChatName(facebook_chatroom *fbc)
+{
+	std::string name = "";
+	unsigned int namesUsed = 0;
+
+	for (auto it = fbc->participants.begin(); it != fbc->participants.end(); ++it) {
+		std::string participant = it->second.nick;
+
+		// Ignore self contact, empty and numeric only participant names
+		if (it->second.role == ROLE_ME || participant.empty() || participant.find_first_not_of("0123456789") == std::string::npos)
+			continue;
+
+		if (namesUsed > 0)
+			name += ", ";
+
+		name += utils::text::prepare_name(participant, false);
+
+		if (++namesUsed >= FACEBOOK_CHATROOM_NAMES_COUNT)
+			break;
+	}
+
+	// Participants.size()-1 because we ignore self contact
+	if (fbc->participants.size() - 1 > namesUsed) {
+		wchar_t more[200];
+		mir_snwprintf(more, TranslateT("%s and more (%d)"), fbc->chat_name.c_str(), fbc->participants.size() - 1 - namesUsed); // -1 because we ignore self contact
+		fbc->chat_name = more;
+	}
+
+	// If there are no participants to create a name from, use just thread_id
+	if (name.empty())
+		name = fbc->thread_id.c_str();
+
+	return name;
+}