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path: root/src/gui.py
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#!/usr/bin/python
# -*- coding:utf-8 -*-
#
# Copyright 2010 Le Coz Florent <louizatakk@fedoraproject.org>
#
# This file is part of Poezio.
#
# Poezio is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, version 3 of the License.
#
# Poezio is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with Poezio.  If not, see <http://www.gnu.org/licenses/>.

from gettext import (bindtextdomain, textdomain, bind_textdomain_codeset,
                     gettext as _)

bindtextdomain('poezio')
textdomain('poezio')
bind_textdomain_codeset('poezio', 'utf-8')

import locale
locale.setlocale(locale.LC_ALL, '')
import sys

import curses
from curses import textpad
from datetime import datetime

from handler import Handler
from logging import logger
from random import randrange
from config import config
from window import Window

class User(object):
    """
    keep trace of an user in a Room
    """
    def __init__(self, nick, affiliation, show, status, role):
        self.update(affiliation, show, status, role)
        self.change_nick(nick)
        self.color = randrange(2, 10)

    def update(self, affiliation, show, status, role):
        self.affiliation = None
        self.show = None
        self.status = status
        self.role = role

    def change_nick(self, nick):
        self.nick = nick.encode('utf-8')

class Room(object):
    """
    """
    def __init__(self, name, nick):
        self.name = name
        self.own_nick = nick
        self.joined = False     # false until self presence is received
        self.users = []
        self.lines = []         # (time, nick, msg) or (time, info)
        self.topic = ''

    def disconnect(self):
        self.joined = False
        self.users = []

    def add_message(self, nick, msg):
        if not msg:
            logger.info('msg is None..., %s' % (nick))
            return
        self.lines.append((datetime.now(), nick.encode('utf-8'), msg.encode('utf-8')))

    def add_info(self, info):
        """ info, like join/quit/status messages"""
        try:
            self.lines.append((datetime.now(), info.encode('utf-8')))
            return info.encode('utf-8')
        except:                 # I JUST FUCKING HATE THIS .encode.decode.shit !!!
            self.lines.append((datetime.now(), info))
            return info

    def get_user_by_name(self, nick):
        for user in self.users:
            if user.nick == nick.encode('utf-8'):
                return user
        return None

    def on_presence(self, stanza, nick):
        """
        """
        affiliation = stanza.getAffiliation()
        show = stanza.getShow()
        status = stanza.getStatus()
        role = stanza.getRole()
        if not self.joined:     # user in the room BEFORE us.
             self.users.append(User(nick, affiliation, show, status, role))
             if nick.encode('utf-8') == self.own_nick:
                 self.joined = True
                 return self.add_info(_("Your nickname is %s") % (nick))
             return self.add_info(_("%s is in the room") % (nick.encode-('utf-8')))
        change_nick = stanza.getStatusCode() == '303'
        kick = stanza.getStatusCode() == '307'
        user = self.get_user_by_name(nick)
        # New user
        if not user:
            self.users.append(User(nick, affiliation, show, status, role))
            return self.add_info(_('%(nick)s joined the room %(roomname)s') % {'nick':nick, 'roomname': self.name})
        # nick change
        if change_nick:
            if user.nick == self.own_nick:
                self.own_nick = stanza.getNick().encode('utf-8')
            user.change_nick(stanza.getNick())
            return self.add_info(_('%(old_nick)s is now known as %(new_nick)s') % {'old_nick':nick, 'new_nick':stanza.getNick()})
        # kick
        if kick:
            self.users.remove(user)
            reason = stanza.getReason().encode('utf-8') or ''
            try:
                by = stanza.getActor().encode('utf-8')
            except:
                by = None
            if nick == self.own_nick:
                self.disconnect()
                if by:
                    return self.add_info(_('You have been kicked by %(by)s. Reason: %(reason)s') % {'by':by, 'reason':reason})
                else:
                    return self.add_info(_('You have been kicked. Reason: %s') % (reason))
            else:
                if by:
                    return self.add_info(_('%(nick)s has been kicked by %(by)s. Reason: %(reason)s') % {'nick':nick, 'by':by, 'reason':reason})
                else:
                    return self.add_info(_('%(nick)s has been kicked. Reason: %(reason)s') % {'nick':nick, 'reason':reason})
        # user quit
        if status == 'offline' or role == 'none':
            self.users.remove(user)
            return self.add_info(_('%s has left the room') % (nick))
        # status change
        user.update(affiliation, show, status, role)
        return self.add_info(_('%(nick)s changed his/her status : %(a)s, %(b)s, %(c)s, %(d)s') % {'nick':nick, 'a':affiliation, 'b':role, 'c':show, 'd':status})


class Gui(object):
    """
    Graphical user interface using ncurses
    """
    def __init__(self, stdscr=None, muc=None):

        self.init_curses(stdscr)
        self.stdscr = stdscr
        self.rooms = [Room('Info', '')]         # current_room is self.rooms[0]
        self.window = Window(stdscr)
        self.window.text_win.new_win('Info')
        self.window.refresh(self.rooms[0])

        self.muc = muc

        self.commands = {
            'help': (self.command_help, _('OLOL, this is SOOO recursive')),
            'join': (self.command_join, _('Usage: /join [room_name][/nick]\nJoin: Join the specified room. You can specify a nickname after a slash (/). If no nickname is specified, you will use the default_nick in the configuration file. You can omit the room name: you will then join the room you\'re looking at (useful if you were kicked). Examples:\n/join room@server.tld\n/join room@server.tld/John\n/join /me_again\n/join')),
            'quit': (self.command_quit, _('Usage: /quit\nQuit: Just disconnect from the server and exit poezio.')),
            'exit': (self.command_quit, _('Usage: /exit\nExit: Just disconnect from the server and exit poezio.')),
            'next': (self.rotate_rooms_left, _('Usage: /next\nNext: Go to the next room.')),
            'prev': (self.rotate_rooms_right, _('Usage: /prev\nPrev: Go to the previous room.')),
            'part': (self.command_part, _('Usage: /part [message]\nPart: disconnect from a room. You can specify an optional message.')),
            'show': (self.command_show, _(u'Usage: /show <availability> [status]\nShow: Change your availability and (optionaly) your status. The <availability> argument is one of "avail, available, ok, here, chat, away, afk, dnd, busy, xa" and the optional [message] argument will be your status message')),
            'away': (self.command_away, _('Usage: /away [message]\nAway: Sets your availability to away and (optional) sets your status message. This is equivalent to "/show away [message]"')),
            'busy': (self.command_busy, _('Usage: /busy [message]\nBusy: Sets your availability to busy and (optional) sets your status message. This is equivalent to "/show busy [message]"')),
            'avail': (self.command_avail, _('Usage: /avail [message]\nAvail: Sets your availability to available and (optional) sets your status message. This is equivalent to "/show available [message]"')),
            'available': (self.command_avail, _('Usage: /available [message]\nAvailable: Sets your availability to available and (optional) sets your status message. This is equivalent to "/show available [message]"')),
            'bookmark': (self.command_bookmark, _('Usage: /bookmark [roomname][/nick]\nBookmark: Bookmark the specified room (you will then auto-join it on each poezio start). This commands uses the same syntaxe as /nick. Type /help nick for syntaxe examples. Note that when typing "/bookmark" on its own, the room will be bookmarked with the nickname you\'re currently using in this room (instead of default_nick)')),
            'nick': (self.command_nick, _('Usage: /nick <nickname>\nNick: Change your nickname in the current room'))
            }

        self.key_func = {
            "KEY_LEFT": self.window.input.key_left,
            "KEY_RIGHT": self.window.input.key_right,
            "KEY_UP": self.window.input.key_up,
            "KEY_END": self.window.input.key_end,
            "KEY_HOME": self.window.input.key_home,
            "KEY_DOWN": self.window.input.key_down,
            "KEY_DC": self.window.input.key_dc,
            "KEY_F(5)": self.rotate_rooms_left,
            "KEY_F(6)": self.rotate_rooms_right,
            "kLFT5": self.rotate_rooms_left,
            "kRIT5": self.rotate_rooms_right,
            "KEY_BACKSPACE": self.window.input.key_backspace
            }

        self.handler = Handler()
        self.handler.connect('on-connected', self.on_connected)
        self.handler.connect('join-room', self.join_room)
        self.handler.connect('room-presence', self.room_presence)
        self.handler.connect('room-message', self.room_message)
        self.handler.connect('room-iq', self.room_iq)

    def main_loop(self, stdscr):
        while 1:
            curses.doupdate()
            try:
                key = stdscr.getkey()
            except:
                self.window.resize(stdscr)
                self.window.refresh(self.current_room())
            if str(key) in self.key_func.keys():
                self.key_func[key]()
            elif str(key) == 'KEY_RESIZE':
                self.window.resize(stdscr)
                self.window.refresh(self.current_room())
            elif len(key) >= 4:
                continue
            elif ord(key) == 10:
                self.execute()
            elif ord(key) == 8 or ord(key) == 127:
                self.window.input.key_backspace()
            elif ord(key) < 32:
                continue
            else:
                if ord(key) == 27 and ord(stdscr.getkey()) == 91:
                    last = ord(stdscr.getkey()) # FIXME: ugly ugly workaroung.
                    if last == 51:
                        self.window.input.key_dc()
                    continue
                elif ord(key) > 190 and ord(key) < 225:
                    key = key+stdscr.getkey()
                elif ord(key) == 226:
                    key = key+stdscr.getkey()
                    key = key+stdscr.getkey()
                self.window.do_command(key)

    def current_room(self):
	return self.rooms[0]

    def get_room_by_name(self, name):
	for room in self.rooms:
	    if room.name == name:
		return room
	return None

    def init_curses(self, stdscr):
        curses.start_color()
        curses.noecho()
        stdscr.keypad(True)
        curses.init_pair(1, curses.COLOR_WHITE, curses.COLOR_BLUE)
        curses.init_pair(2, curses.COLOR_BLUE, curses.COLOR_BLACK)
        curses.init_pair(3, curses.COLOR_RED, curses.COLOR_BLACK) # Admin
        curses.init_pair(4, curses.COLOR_BLUE, curses.COLOR_BLACK) # Participant
        curses.init_pair(5, curses.COLOR_WHITE, curses.COLOR_BLACK) # Visitor
        curses.init_pair(6, curses.COLOR_CYAN, curses.COLOR_BLACK)
        curses.init_pair(7, curses.COLOR_GREEN, curses.COLOR_BLACK)
        curses.init_pair(8, curses.COLOR_MAGENTA, curses.COLOR_BLACK)
        curses.init_pair(9, curses.COLOR_YELLOW, curses.COLOR_BLACK)

    def reset_curses(self):
	curses.echo()
        curses.endwin()

    def on_connected(self, jid):
        self.information(_("Welcome on Poezio \o/!"))
        self.information(_("Your JID is %s") % jid)

    def join_room(self, room, nick):
        self.window.text_win.new_win(room)
        self.rooms.insert(0, Room(room, nick))
        self.window.refresh(self.current_room())

    def rotate_rooms_left(self, args=None):
        self.rooms.append(self.rooms.pop(0))
        self.window.refresh(self.current_room())

    def rotate_rooms_right(self, args=None):
        self.rooms.insert(0, self.rooms.pop())
        self.window.refresh(self.current_room())

    def room_message(self, stanza):
        if len(sys.argv) > 1:
            self.information(str(stanza))
        if stanza.getType() != 'groupchat':
            return  # ignore all messages not comming from a MUC
        room_from = stanza.getFrom().getStripped()
        nick_from = stanza.getFrom().getResource()
        if not nick_from:
            nick_from = ''
	room = self.get_room_by_name(room_from)
	if not room:
	    self.information(_("message received for a non-existing room: %s") % (name))
            return
        body = stanza.getBody()
        if not body:
            body = stanza.getSubject()
            info = room.add_info(_("%(nick)s changed the subject to: %(subject)s") % {'nick':nick_from, 'subject':stanza.getSubject()})
            self.window.text_win.add_line(room, (datetime.now(), info))
            room.topic = stanza.getSubject().encode('utf-8').replace('\n', '|')
            if room == self.current_room():
                self.window.topic_win.refresh(room.topic)
                self.window.text_win.refresh(room.name)
            curses.doupdate()
        else:
            room.add_message(nick_from, body)
            self.window.text_win.add_line(room, (datetime.now(), nick_from.encode('utf-8'), body.encode('utf-8')))
        if room == self.current_room():
            self.window.text_win.refresh(room.name)
            self.window.input.refresh()
        curses.doupdate()

    def room_presence(self, stanza):
        if len(sys.argv) > 1:
            self.information(str(stanza))
        from_nick = stanza.getFrom().getResource()
        from_room = stanza.getFrom().getStripped()
	room = self.get_room_by_name(from_room)
	if not room:
	    self.information(_("presence received for a non-existing room: %s") % (name))
        if stanza.getType() == 'error':
            msg = _("Error: %s") % stanza.getError()
        else:
            msg = room.on_presence(stanza, from_nick)
        if room == self.current_room():
            try:
                self.window.text_win.add_line(room, (datetime.now(), msg))
            except:
                pass
            self.window.text_win.refresh(room.name)
            self.window.user_win.refresh(room.users)
            self.window.text_win.refresh()
            curses.doupdate()

    def room_iq(self, iq):
        if len(sys.argv) > 1:
            self.information(str(iq))

    def execute(self):
        line = self.window.input.get_text()
        self.window.input.clear_text()
        self.window.input.refresh()
        curses.doupdate()
        if line == "":
            return
        if line.startswith('/'):
            command = line.strip()[:].split()[0][1:]
            args = line.strip()[:].split()[1:]
            if command in self.commands.keys():
                func = self.commands[command][0]
                func(args)
                return
        if self.current_room().name != 'Info':
            self.muc.send_message(self.current_room().name, line)
	self.window.input.refresh()

    def command_help(self, args):
        room = self.current_room()
        if len(args) == 0:
            msg = _('Available commands are:')
            for command in self.commands.keys():
                msg += "%s " % command
            msg += _("\nType /help <command_name> to know what each command does")
        if len(args) == 1:
            if args[0] in self.commands.keys():
                msg = self.commands[args[0]][1]
            else:
                msg = _('Unknown command: %s') % args[0]
        room.add_info(msg)
        self.window.text_win.add_line(room, (datetime.now(), msg))
        self.window.text_win.refresh(room.name)
        self.window.input.refresh()

    def command_join(self, args):
        if len(args) == 0:
            r = self.current_room()
            if r.name == 'Info':
                return
            room = r.name
            nick = r.own_nick
        else:
            info = args[0].split('/')
            if len(info) == 1:
                nick = config.get('default_nick', 'Poezio')
            else:
                nick = info[1]
            if info[0] == '':   # happens with /join /nickname, which is OK
                r = self.current_room()
                if r.name == 'Info':
                    return
                room = r.name
            else:
                room = info[0]
            r = self.get_room_by_name(room)
        if r and r.joined:                   # if we are already in the room
            self.information(_("already in room [%s]") % room)
            return
        self.muc.join_room(room, nick)
        if not r: # if the room window exists, we don't recreate it.
            self.join_room(room, nick)

    def command_bookmark(self, args):
        bookmarked = config.get('rooms', '')
        nick = None
        if len(args) == 0:
            room = self.current_room()
            if room.name == 'Info':
                return
            roomname = room.name
            if room.joined:
                nick = room.own_nick
        else:
            info = args[0].split('/')
            if len(info) == 2:
                nick = info[1]
            roomname = info[0]
        if nick:
            res = roomname+'/'+nick
        else:
            res = roomname
        config.setAndSave('rooms', bookmarked+':'+res)

    def command_show(self, args):
        possible_show = {'avail':'None',
                         'available':'None',
                         'ok':'None',
                         'here':'None',
                         'chat':'chat',
                         'away':'away',
                         'afk':'away',
                         'dnd':'dnd',
                         'busy':'dnd',
                         'xa':'xa'
                         }
        if len(args) < 1:
            return
        if not args[0] in possible_show.keys():
            self.command_help(['show'])
            return
        show = possible_show[args[0]]
        if len(args) > 1:
            msg = ' '.join(args[1:])
        else:
            msg = None
        for room in self.rooms:
            if room.joined:
                self.muc.change_show(room.name, room.own_nick, show, msg)

    def command_away(self, args):
        args.insert(0, 'away')
        self.command_show(args)

    def command_busy(self, args):
        args.insert(0, 'busy')
        self.command_show(args)

    def command_avail(self, args):
        args.insert(0, 'available')
        self.command_show(args)

    def command_part(self, args):
        reason = None
        room = self.current_room()
        if room.name == 'Info':
            return
        if len(args):
            msg = ' '.join(args)
        else:
            msg = None
        if room.joined:
            self.muc.quit_room(room.name, room.own_nick, msg)
        self.rooms.remove(self.current_room())
        self.window.refresh(self.current_room())

    def command_nick(self, args):
        if len(args) != 1:
            return
        nick = args[0]
        room = self.current_room()
        if not room.joined or room.name == "Info":
            return
        self.muc.change_nick(room.name, nick)

    def information(self, msg):
        room = self.get_room_by_name("Info")
        info = room.add_info(msg)
        if self.current_room() == room:
            self.window.text_win.add_line(room, (datetime.now(), info))
            self.window.text_win.refresh(room.name)
            curses.doupdate()

    def command_quit(self, args):
	self.reset_curses()
        sys.exit()