Improve refresh performance in big rooms

going through a list with more than 1000 elements, one at a time, can be
a bit tedious. Especially if you go through it every time you receive
one of those elements.

poezio/core/handlers.py

@@ -532,7 +532,7 @@ class HandlerCore:
 
         if tab is self.core.current_tab():
             tab.text_win.refresh()
-            tab.info_header.refresh(tab, tab.text_win)
+            tab.info_header.refresh(tab, tab.text_win, user=tab.own_user)
             tab.input.refresh()
             self.core.doupdate()
         elif tab.state != old_state:

poezio/tabs/muctab.py

@@ -59,6 +59,7 @@ class MucTab(ChatTab):
         if self.joined == False:
             self._state = 'disconnected'
         self.own_nick = nick
+        self.own_user = None
         self.name = jid
         self.password = password
         self.users = []
@@ -958,7 +959,7 @@ class MucTab(ChatTab):
         if display_user_list:
             self.v_separator.refresh()
             self.user_win.refresh(self.users)
-        self.info_header.refresh(self, self.text_win)
+        self.info_header.refresh(self, self.text_win, user=self.own_user)
         self.refresh_tab_win()
         if display_info_win:
             self.info_win.refresh()
@@ -1096,6 +1097,7 @@ class MucTab(ChatTab):
                     # ejabberd or every gateway in the world that just do
                     # not send a 110 status code with the presence
                     self.own_nick = from_nick
+                    self.own_user = new_user
                     self.joined = True
                     if self.name in self.core.initial_joins:
                         self.core.initial_joins.remove(self.name)
@@ -1201,7 +1203,7 @@ class MucTab(ChatTab):
         if self.core.current_tab() is self:
             self.text_win.refresh()
             self.user_win.refresh_if_changed(self.users)
-            self.info_header.refresh(self, self.text_win)
+            self.info_header.refresh(self, self.text_win, user=self.own_user)
             self.input.refresh()
             self.core.doupdate()
 

poezio/windows/info_wins.py

@@ -213,14 +213,14 @@ class MucInfoWin(InfoWin):
     def __init__(self):
         InfoWin.__init__(self)
 
-    def refresh(self, room, window=None):
+    def refresh(self, room, window=None, user=None):
         log.debug('Refresh: %s', self.__class__.__name__)
         self._win.erase()
         self.write_room_name(room)
         self.write_participants_number(room)
         self.write_own_nick(room)
         self.write_disconnected(room)
-        self.write_role(room)
+        self.write_role(room, user)
         if window:
             self.print_scroll_position(window)
         self.finish_line(get_theme().COLOR_INFORMATION_BAR)
@@ -252,21 +252,16 @@ class MucInfoWin(InfoWin):
             return
         self.addstr(truncate_nick(nick, 13), to_curses_attr(get_theme().COLOR_INFORMATION_BAR))
 
-    def write_role(self, room):
+    def write_role(self, room, user):
         """
         Write our own role and affiliation
         """
-        own_user = None
-        for user in room.users:
-            if user.nick == room.own_nick:
-                own_user = user
-                break
-        if not own_user:
+        if not user:
             return
         txt = ' ('
-        if own_user.affiliation != 'none':
-            txt += own_user.affiliation+', '
-        txt += own_user.role+')'
+        if user.affiliation != 'none':
+            txt += user.affiliation + ', '
+        txt += user.role + ')'
         self.addstr(txt, to_curses_attr(get_theme().COLOR_INFORMATION_BAR))
 
 class ConversationStatusMessageWin(InfoWin):