Merge pull request #3498 from michaelfaith84/terminal_resizing

Automatic Terminal resizing

evennia/commands/default/account.py

@@ -636,6 +636,11 @@ class CmdOption(COMMAND_DEFAULT_CLASS):
                     self.msg(f"Option |w{new_name}|n was kept as '|w{old_val}|n'.")
                 else:
                     flags[new_name] = new_val
+
+                    # If we're manually assign a display size, turn off auto-resizing
+                    if new_name in ['SCREENWIDTH', 'SCREENHEIGHT']:
+                        flags['AUTORESIZE'] = False
+
                     self.msg(
                         f"Option |w{new_name}|n was changed from '|w{old_val}|n' to"
                         f" '|w{new_val}|n'."
@@ -658,6 +663,7 @@ class CmdOption(COMMAND_DEFAULT_CLASS):
             "RAW": validate_bool,
             "SCREENHEIGHT": validate_size,
             "SCREENWIDTH": validate_size,
+            "AUTORESIZE": validate_bool,
             "SCREENREADER": validate_bool,
             "TERM": utils.to_str,
             "UTF-8": validate_bool,

evennia/server/inputfuncs.py

@@ -175,6 +175,7 @@ _CLIENT_OPTIONS = (
     "MCCP",
     "SCREENHEIGHT",
     "SCREENWIDTH",
+    "AUTORESIZE",
     "INPUTDEBUG",
     "RAW",
     "NOCOLOR",
@@ -201,6 +202,7 @@ def client_options(session, *args, **kwargs):
         mccp (bool): MCCP compression on/off
         screenheight (int): Screen height in lines
         screenwidth (int): Screen width in characters
+        autoresize (bool): Use NAWS updates to dynamically adjust format
         inputdebug (bool): Debug input functions
         nocolor (bool): Strip color
         raw (bool): Turn off parsing
@@ -256,6 +258,8 @@ def client_options(session, *args, **kwargs):
             flags["SCREENHEIGHT"] = validate_size(value)
         elif key == "screenwidth":
             flags["SCREENWIDTH"] = validate_size(value)
+        elif key == "autoresize":
+            flags["AUTORESIZE"] = validate_size(value)
         elif key == "inputdebug":
             flags["INPUTDEBUG"] = validate_bool(value)
         elif key == "nocolor":

evennia/server/portal/naws.py

@@ -58,6 +58,7 @@ class Naws:
             option (Option): Not used.
 
         """
+        self.protocol.protocol_flags["AUTORESIZE"] = False
         self.protocol.handshake_done()
 
     def do_naws(self, option):
@@ -68,6 +69,7 @@ class Naws:
             option (Option): Not used.
 
         """
+        self.protocol.protocol_flags["AUTORESIZE"] = True
         self.protocol.handshake_done()
 
     def negotiate_sizes(self, options):

evennia/server/portal/portalsessionhandler.py

@@ -467,7 +467,7 @@ class PortalSessionHandler(SessionHandler):
             kwargs (any): Each key is a command instruction to the
                 protocol on the form key = [[args],{kwargs}]. This will
                 call a method send_<key> on the protocol. If no such
-                method exixts, it sends the data to a method send_default.
+                method exits, it sends the data to a method send_default.
 
         """
         # from evennia.server.profiling.timetrace import timetrace  # DEBUG

evennia/server/portal/telnet.py

@@ -31,6 +31,7 @@ from twisted.internet.task import LoopingCall
 from evennia.server.portal import mssp, naws, suppress_ga, telnet_oob, ttype
 from evennia.server.portal.mccp import MCCP, Mccp, mccp_compress
 from evennia.server.portal.mxp import Mxp, mxp_parse
+from evennia.server.portal.naws import NAWS
 from evennia.utils import ansi
 from evennia.utils.utils import class_from_module, to_bytes
 
@@ -91,8 +92,14 @@ class TelnetProtocol(Telnet, StatefulTelnetProtocol, _BASE_SESSION_CLASS):
         of incoming data.
 
         """
-        # print(f"telnet dataReceived: {data}")
         try:
+            # Do we have a NAWS update?
+            if (NAWS in data and
+                    len([data[i:i+1] for i in range(0, len(data))]) == 9 and
+                    # Is auto resizing on?
+                    self.protocol_flags.get('AUTORESIZE')):
+                self.sessionhandler.sync(self.sessionhandler.get(self.sessid))
+
             super().dataReceived(data)
         except ValueError as err:
             from evennia.utils import logger

evennia/server/serversession.py

@@ -269,7 +269,7 @@ class ServerSession(_BASE_SESSION_CLASS):
 
         Notes:
             Since protocols can vary, no checking is done
-            as to the existene of the flag or not. The input
+            as to the existence of the flag or not. The input
             data should have been validated before this call.
 
         """