tabs.py 40 KB
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# Copyright 2010 Le Coz Florent <louiz@louiz.org>
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#
# 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/>.

"""
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a Tab object is a way to organize various Windows (see windows.py)
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around the screen at once.
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A tab is then composed of multiple Buffer.
Each Tab object has different refresh() and resize() methods, defining how its
Buffer are displayed, resized, etc
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"""

MIN_WIDTH = 50
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MIN_HEIGHT = 16
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from gettext import (bindtextdomain, textdomain, bind_textdomain_codeset,
                     gettext as _)

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import logging
log = logging.getLogger(__name__)

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import windows
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import theme
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import curses
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import difflib
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import shlex
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import text_buffer
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from sleekxmpp.xmlstream.stanzabase import JID
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from config import config
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from roster import RosterGroup, roster
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from contact import Contact, Resource
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import multiuserchat as muc
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class Tab(object):
    number = 0

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    def __init__(self, core):
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        self.core = core        # a pointer to core, to access its attributes (ugly?)
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        self.nb = Tab.number
        Tab.number += 1
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        self.size = (self.height, self.width) = self.core.stdscr.getmaxyx()
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        if self.height < MIN_HEIGHT or self.width < MIN_WIDTH:
            self.visible = False
        else:
            self.visible = True
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        self.key_func = {}      # each tab should add their keys in there
                                # and use them in on_input
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        self.commands = {}      # and their own commands
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    def complete_commands(self, the_input):
        """
        Does command completion on the specified input for both global and tab-specific
        commands.
        This should be called from the completion method (on tab, for example), passing
        the input where completion is to be made.
        It can completion the command name itself or an argument of the command.
        Returns True if a completion was made, False else.
        """
        txt = the_input.get_text()
        # check if this is a command
        if txt.startswith('/') and not txt.startswith('//'):
            # check if we are in the middle of the command name
            if len(txt.split()) > 1 or\
                    (txt.endswith(' ') and not the_input.last_completion):
                command_name = txt.split()[0][1:]
                if command_name in self.core.commands:
                    command = self.core.commands[command_name]
                elif command_name in self.commands:
                    command = self.commands[command_name]
                else:           # Unknown command, cannot complete
                    return False
                if command[2] is None:
                    return False # There's no completion functio
                else:
                    return command[2](the_input)
            else:
                # complete the command's name
                words = ['/%s'%(name) for name in list(self.core.commands.keys())] +\
                    ['/%s'% (name) for name in list(self.commands.keys())]
                the_input.auto_completion(words, '')
                return True
        return False
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    def resize(self):
        self.size = (self.height, self.width) = self.core.stdscr.getmaxyx()
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        if self.height < MIN_HEIGHT or self.width < MIN_WIDTH:
            self.visible = False
        else:
            self.visible = True

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    def refresh(self, tabs, informations, roster):
        """
        Called on each screen refresh (when something has changed)
        """
        raise NotImplementedError

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    def get_color_state(self):
        """
        returns the color that should be used in the GlobalInfoBar
        """
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        return theme.COLOR_TAB_NORMAL
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    def set_color_state(self, color):
        """
        set the color state
        """
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        pass
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    def get_name(self):
        """
        get the name of the tab
        """
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        return self.__class__.__name__
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    def get_text_window(self):
        """
        Returns the principal TextWin window, if there's one
        """
        return None

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    def on_input(self, key):
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        pass
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    def on_lose_focus(self):
        """
        called when this tab loses the focus.
        """
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        pass
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    def on_gain_focus(self):
        """
        called when this tab gains the focus.
        """
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        pass
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    def add_message(self):
        """
        Adds a message in the tab.
        If the tab cannot add a message in itself (for example
        FormTab, where text is not intented to be appened), it returns False.
        If the tab can, it returns True
        """
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        return False
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    def on_scroll_down(self):
        """
        Defines what happens when we scrol down
        """
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        pass
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    def on_scroll_up(self):
        """
        Defines what happens when we scrol down
        """
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        pass
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    def on_info_win_size_changed(self):
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        """
        Called when the window with the informations is resized
        """
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        pass
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    def just_before_refresh(self):
        """
        Method called just before the screen refresh.
        Particularly useful to move the cursor at the
        correct position.
        """
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        pass
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    def on_close(self):
        """
        Called when the tab is to be closed
        """
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        pass
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class InfoTab(Tab):
    """
    The information tab, used to display global informations
    when using a anonymous account
    """
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    def __init__(self, core):
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        Tab.__init__(self, core)
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        self.tab_win = windows.GlobalInfoBar()
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        self.info_win = windows.TextWin()
        self.core.information_buffer.add_window(self.info_win)
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        self.input = windows.Input()
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        self.name = "Info"
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        self.color_state = theme.COLOR_TAB_NORMAL
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        self.resize()
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    def resize(self):
        Tab.resize(self)
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        self.tab_win.resize(1, self.width, self.height-2, 0, self.core.stdscr)
        self.text_win.resize(self.height-2, self.width, 0, 0, self.core.stdscr)
        self.input.resize(1, self.width, self.height-1, 0, self.core.stdscr)
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    def refresh(self, tabs, informations, _):
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        if not self.visible:
            return
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        self.text_win.refresh(informations)
        self.tab_win.refresh(tabs, tabs[0])
        self.input.refresh()

    def get_name(self):
        return self.name

    def get_color_state(self):
        return self.color_state

    def set_color_state(self, color):
        return

    def on_input(self, key):
        return self.input.do_command(key)

    def on_lose_focus(self):
        self.color_state = theme.COLOR_TAB_NORMAL

    def on_gain_focus(self):
        self.color_state = theme.COLOR_TAB_CURRENT
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        curses.curs_set(0)
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    def on_scroll_up(self):
        pass

    def on_scroll_down(self):
        pass

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    def on_info_win_size_changed(self):
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        return

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    def just_before_refresh(self):
        return

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    def on_close(self):
        return

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class ChatTab(Tab):
    """
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    A tab containing a chat of any type.
    Just use this class instead of Tab if the tab needs a recent-words completion
    Also, \n, ^J and ^M are already bound to on_enter
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    And also, add the /say command
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    """
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    def __init__(self, core, room):
        Tab.__init__(self, core)
        self._room = room
        self.key_func['M-/'] = self.last_words_completion
        self.key_func['^J'] = self.on_enter
        self.key_func['^M'] = self.on_enter
        self.key_func['\n'] = self.on_enter
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        self.commands['say'] =  (self.command_say,
                                 _("""Usage: /say <message>\nSay: Just send the message.
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                                        Useful if you want your message to begin with a '/'"""), None)
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    def last_words_completion(self):
        """
        Complete the input with words recently said
        """
        # build the list of the recent words
        char_we_dont_want = [',', '(', ')', '.', '"', '\'', ' ', # The last one is nbsp
                             '’', '“', '”', ':', ';', '[', ']', '{', '}']
        words = list()
        for msg in self._room.messages[:-40:-1]:
            if not msg:
                continue
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            txt = msg.txt
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            for char in char_we_dont_want:
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                txt = txt.replace(char, ' ')
            for word in txt.split():
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                if len(word) >= 4 and word not in words:
                    words.append(word)
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        self.input.auto_completion(words, ' ')
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    def on_enter(self):
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        txt = self.input.key_enter()
        if txt.startswith('/') and not txt.startswith('//') and\
                not txt.startswith('/me '):
            command = txt.strip().split()[0][1:]
            arg = txt[2+len(command):] # jump the '/' and the ' '
            if command in self.core.commands: # check global commands
                self.core.commands[command][0](arg)
            elif command in self.commands: # check tab-specific commands
                self.commands[command][0](arg)
            else:
                self.core.information(_("Unknown command (%s)") % (command), _('Error'))
        else:
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            if txt.startswith('//'):
                txt = txt[1:]
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            self.command_say(txt)

    def command_say(self, line):
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        raise NotImplementedError

class MucTab(ChatTab):
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    """
    The tab containing a multi-user-chat room.
    It contains an userlist, an input, a topic, an information and a chat zone
    """
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    def __init__(self, core, room):
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        ChatTab.__init__(self, core, room)
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        self.topic_win = windows.Topic()
        self.text_win = windows.TextWin()
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        room.add_window(self.text_win)
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        self.v_separator = windows.VerticalSeparator()
        self.user_win = windows.UserList()
        self.info_header = windows.MucInfoWin()
        self.info_win = windows.TextWin()
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        self.core.information_buffer.add_window(self.info_win)
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        self.tab_win = windows.GlobalInfoBar()
        self.input = windows.MessageInput()
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        self.ignores = []       # set of Users
        # keys
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        self.key_func['^I'] = self.completion
        self.key_func['M-i'] = self.completion
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        # commands
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        self.commands['ignore'] = (self.command_ignore, _("Usage: /ignore <nickname> \nIgnore: Ignore a specified nickname."), None)
        self.commands['unignore'] = (self.command_unignore, _("Usage: /unignore <nickname>\nUnignore: Remove the specified nickname from the ignore list."), None)
        self.commands['kick'] =  (self.command_kick, _("Usage: /kick <nick> [reason]\nKick: Kick the user with the specified nickname. You also can give an optional reason."), None)
        self.commands['topic'] = (self.command_topic, _("Usage: /topic <subject>\nTopic: Change the subject of the room"), None)
        self.commands['query'] = (self.command_query, _('Usage: /query <nick> [message]\nQuery: Open a private conversation with <nick>. This nick has to be present in the room you\'re currently in. If you specified a message after the nickname, it will immediately be sent to this user'), None)
        self.commands['part'] = (self.command_part, _("Usage: /part [message]\n Part: disconnect from a room. You can specify an optional message."), None)
        self.commands['nick'] = (self.command_nick, _("Usage: /nick <nickname>\nNick: Change your nickname in the current room"), None)
        self.commands['recolor'] = (self.command_recolor, _('Usage: /recolor\nRecolor: Re-assign a color to all participants of the current room, based on the last time they talked. Use this if the participants currently talking have too many identical colors.'), None)
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        self.resize()
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    def command_recolor(self, arg):
        """
        Re-assign color to the participants of the room
        """
        room = self.get_room()
        i = 0
        compare_users = lambda x: x.last_talked
        users = list(room.users)
        # search our own user, to remove it from the room
        for user in users:
            if user.nick == room.own_nick:
                users.remove(user)
        nb_color = len(theme.LIST_COLOR_NICKNAMES)
        for user in sorted(users, key=compare_users, reverse=True):
            user.color = theme.LIST_COLOR_NICKNAMES[i % nb_color]
            i+= 1
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        self.text_win.rebuild_everything(self.get_room())
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        self.core.refresh_window()

    def command_nick(self, arg):
        """
        /nick <nickname>
        """
        try:
            args = shlex.split(arg)
        except ValueError as error:
            return self.core.information(str(error), _("Error"))
        if len(args) != 1:
            return
        nick = args[0]
        room = self.get_room()
        if not room.joined:
            return
        muc.change_nick(self.core.xmpp, room.name, nick)

    def command_part(self, arg):
        """
        /part [msg]
        """
        args = arg.split()
        reason = None
        room = self.get_room()
        if len(args):
            msg = ' '.join(args)
        else:
            msg = None
        if self.get_room().joined:
            muc.leave_groupchat(self.core.xmpp, room.name, room.own_nick, arg)
        self.core.close_tab()

    def command_query(self, arg):
        """
        /query <nick> [message]
        """
        try:
            args = shlex.split(arg)
        except ValueError as error:
            return self.core.information(str(error), _("Error"))
        if len(args) < 1:
            return
        nick = args[0]
        room = self.get_room()
        r = None
        for user in room.users:
            if user.nick == nick:
                r = self.core.open_private_window(room.name, user.nick)
        if r and len(args) > 1:
            msg = arg[len(nick)+1:]
            muc.send_private_message(self.core.xmpp, r.name, msg)
            self.core.add_message_to_text_buffer(r, msg, None, r.own_nick)

    def command_topic(self, arg):
        """
        /topic [new topic]
        """
        if not arg.strip():
            self.core.add_message_to_text_buffer(self.get_room(),
                                                 _("The subject of the room is: %s") % self.get_room().topic)
            return
        subject = arg
        muc.change_subject(self.core.xmpp, self.get_room().name, subject)

    def command_kick(self, arg):
        """
        /kick <nick> [reason]
        """
        try:
            args = shlex.split(arg)
        except ValueError as error:
            return self.core.information(str(error), _("Error"))
        if len(args) < 1:
            self.core.command_help('kick')
            return
        nick = args[0]
        if len(args) >= 2:
            reason = ' '.join(args[1:])
        else:
            reason = ''
        if not self.get_room().joined:
            return
        res = muc.eject_user(self.core.xmpp, self.get_name(), nick, reason)
        if res['type'] == 'error':
            self.core.room_error(res, self.get_name())

    def command_say(self, line):
        muc.send_groupchat_message(self.core.xmpp, self.get_name(), line)

    def command_ignore(self, arg):
        """
        /ignore <nick>
        """
        try:
            args = shlex.split(arg)
        except ValueError as error:
            return self.core.information(str(error), _("Error"))
        if len(args) != 1:
            self.core.command_help('ignore')
            return
        nick = args[0]
        user = self._room.get_user_by_name(nick)
        if not user:
            self.core.information(_('%s is not in the room') % nick)
        elif user in self.ignores:
            self.core.information(_('%s is already ignored') % nick)
        else:
            self.ignores.append(user)
            self.core.information(_("%s is now ignored") % nick, 'info')

    def command_unignore(self, arg):
        """
        /unignore <nick>
        """
        try:
            args = shlex.split(arg)
        except ValueError as error:
            return self.core.information(str(error), _("Error"))
        if len(args) != 1:
            self.core.command_help('unignore')
            return
        nick = args[0]
        user = self._room.get_user_by_name(nick)
        if not user:
            self.core.information(_('%s is not in the room') % nick)
        elif user not in self.ignores:
            self.core.information(_('%s is not ignored') % nick)
        else:
            self.ignores.remove(user)
            self.core.information(_('%s is now unignored') % nick)

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    def resize(self):
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        """
        Resize the whole window. i.e. all its sub-windows
        """
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        Tab.resize(self)
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        text_width = (self.width//10)*9
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        self.topic_win.resize(1, self.width, 0, 0, self.core.stdscr)
        self.text_win.resize(self.height-4-self.core.information_win_size, text_width, 1, 0, self.core.stdscr)
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        self.text_win.rebuild_everything(self._room)
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        self.v_separator.resize(self.height-3, 1, 1, 9*(self.width//10), self.core.stdscr)
        self.user_win.resize(self.height-3, self.width-text_width-1, 1, text_width+1, self.core.stdscr)
        self.info_header.resize(1, (self.width//10)*9, self.height-3-self.core.information_win_size, 0, self.core.stdscr)
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        self.info_win.resize(self.core.information_win_size, (self.width//10)*9, self.height-2-self.core.information_win_size, 0, self.core.stdscr, self.core.information_buffer)
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        self.tab_win.resize(1, self.width, self.height-2, 0, self.core.stdscr)
        self.input.resize(1, self.width, self.height-1, 0, self.core.stdscr)
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    def refresh(self, tabs, informations, _):
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        if not self.visible:
            return
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        self.topic_win.refresh(self._room.topic)
        self.text_win.refresh(self._room)
        self.v_separator.refresh()
        self.user_win.refresh(self._room.users)
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        self.info_header.refresh(self._room, self.text_win)
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        self.tab_win.refresh(tabs, tabs[0])
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        self.info_win.refresh(informations)
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        self.input.refresh()

    def on_input(self, key):
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        if key in self.key_func:
            self.key_func[key]()
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            return False
        self.input.do_command(key)
        return False
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    def completion(self):
        """
        Called when Tab is pressed, complete the nickname in the input
        """
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        if self.complete_commands(self.input):
            return
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        # If we are not completing a command or a command's argument, complete a nick
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        compare_users = lambda x: x.last_talked
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        word_list = [user.nick for user in sorted(self._room.users, key=compare_users, reverse=True)\
                         if user.nick != self._room.own_nick]
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        after = config.get('after_completion', ',')+" "
        if ' ' not in self.input.get_text() or (self.input.last_completion and\
                     self.input.get_text()[:-len(after)] == self.input.last_completion):
            add_after = after
        else:
            add_after = ' '
        self.input.auto_completion(word_list, add_after)
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    def get_color_state(self):
        return self._room.color_state

    def set_color_state(self, color):
        self._room.set_color_state(color)

    def get_name(self):
        return self._room.name

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    def get_text_window(self):
        return self.text_win

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    def get_room(self):
        return self._room

    def on_lose_focus(self):
        self._room.set_color_state(theme.COLOR_TAB_NORMAL)
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        self.text_win.remove_line_separator()
        self.text_win.add_line_separator()
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    def on_gain_focus(self):
        self._room.set_color_state(theme.COLOR_TAB_CURRENT)
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        curses.curs_set(1)
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    def on_scroll_up(self):
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        self.text_win.scroll_up(self.text_win.height-1)
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    def on_scroll_down(self):
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        self.text_win.scroll_down(self.text_win.height-1)
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    def on_info_win_size_changed(self):
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        text_width = (self.width//10)*9
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        self.text_win.resize(self.height-4-self.core.information_win_size, text_width, 1, 0, self.core.stdscr)
        self.info_header.resize(1, (self.width//10)*9, self.height-3-self.core.information_win_size, 0, self.core.stdscr)
        self.info_win.resize(self.core.information_win_size, (self.width//10)*9, self.height-2-self.core.information_win_size, 0, self.core.stdscr)
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    def just_before_refresh(self):
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        return
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    def on_close(self):
        return

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class PrivateTab(ChatTab):
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    """
    The tab containg a private conversation (someone from a MUC)
    """
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    def __init__(self, core, room):
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        ChatTab.__init__(self, core, room)
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        self.text_win = windows.TextWin()
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        room.add_window(self.text_win)
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        self.info_header = windows.PrivateInfoWin()
        self.info_win = windows.TextWin()
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        self.core.information_buffer.add_window(self.info_win)
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        self.tab_win = windows.GlobalInfoBar()
        self.input = windows.MessageInput()
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        # keys
        self.key_func['^I'] = self.completion
        self.key_func['M-i'] = self.completion
        # commands
        self.commands['unquery'] = (self.command_unquery, _("Usage: /unquery\nUnquery: close the tab"), None)
        self.commands['part'] = (self.command_unquery, _("Usage: /part\Part: close the tab"), None)
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        self.resize()
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    def completion(self):
        self.complete_commands(self.input)

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    def command_say(self, line):
        muc.send_private_message(self.core.xmpp, self.get_name(), line)
        self.core.add_message_to_text_buffer(self.get_room(), line, None, self.get_room().own_nick)

    def command_unquery(self, arg):
        """
        /unquery
        """
        self.core.close_tab()

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    def resize(self):
        Tab.resize(self)
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        self.text_win.resize(self.height-3-self.core.information_win_size, self.width, 0, 0, self.core.stdscr)
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        self.text_win.rebuild_everything(self._room)
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        self.info_header.resize(1, self.width, self.height-3-self.core.information_win_size, 0, self.core.stdscr)
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        self.info_win.resize(self.core.information_win_size, self.width, self.height-2-self.core.information_win_size, 0, self.core.stdscr, self.core.information_buffer)
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        self.tab_win.resize(1, self.width, self.height-2, 0, self.core.stdscr)
        self.input.resize(1, self.width, self.height-1, 0, self.core.stdscr)
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    def refresh(self, tabs, informations, _):
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        if not self.visible:
            return
631
        self.text_win.refresh(self._room)
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        self.info_header.refresh(self._room, self.text_win)
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        self.info_win.refresh(informations)
        self.tab_win.refresh(tabs, tabs[0])
        self.input.refresh()

    def get_color_state(self):
        if self._room.color_state == theme.COLOR_TAB_NORMAL or\
                self._room.color_state == theme.COLOR_TAB_CURRENT:
            return self._room.color_state
        return theme.COLOR_TAB_PRIVATE

    def set_color_state(self, color):
        self._room.color_state = color

    def get_name(self):
        return self._room.name

    def on_input(self, key):
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        if key in self.key_func:
            self.key_func[key]()
652
            return False
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        self.input.do_command(key)
        return False
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    def on_lose_focus(self):
        self._room.set_color_state(theme.COLOR_TAB_NORMAL)
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        self.text_win.remove_line_separator()
        self.text_win.add_line_separator()
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    def on_gain_focus(self):
        self._room.set_color_state(theme.COLOR_TAB_CURRENT)
663
        curses.curs_set(1)
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    def on_scroll_up(self):
666
        self.text_win.scroll_up(self.text_win.height-1)
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    def on_scroll_down(self):
669
        self.text_win.scroll_down(self.text_win.height-1)
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671
    def on_info_win_size_changed(self):
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        self.text_win.resize(self.height-3-self.core.information_win_size, self.width, 0, 0, self.core.stdscr)
        self.info_header.resize(1, self.width, self.height-3-self.core.information_win_size, 0, self.core.stdscr)
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        self.info_win.resize(self.core.information_win_size, self.width, self.height-2-self.core.information_win_size, 0, self.core.stdscr, None)
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    def get_room(self):
        return self._room
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679 680 681
    def get_text_window(self):
        return self.text_win

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    def just_before_refresh(self):
        return

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    def on_close(self):
        return

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class RosterInfoTab(Tab):
    """
690
    A tab, splitted in two, containing the roster and infos
691
    """
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    def __init__(self, core):
        Tab.__init__(self, core)
694
        self.name = "Roster"
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        self.v_separator = windows.VerticalSeparator()
        self.tab_win = windows.GlobalInfoBar()
        self.info_win = windows.TextWin()
698
        self.core.information_buffer.add_window(self.info_win)
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        self.roster_win = windows.RosterWin()
        self.contact_info_win = windows.ContactInfoWin()
        self.default_help_message = windows.HelpText("Enter commands with “/”. “o”: toggle offline show")
702
        self.input = self.default_help_message
703
        self.set_color_state(theme.COLOR_TAB_NORMAL)
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        self.key_func['^I'] = self.completion
        self.key_func['M-i'] = self.completion
        self.key_func["^J"] = self.on_enter
        self.key_func["^M"] = self.on_enter
        self.key_func[' '] = self.on_space
        self.key_func["/"] = self.on_slash
        self.key_func["KEY_UP"] = self.move_cursor_up
        self.key_func["KEY_DOWN"] = self.move_cursor_down
        self.key_func["o"] = self.toggle_offline_show
        self.key_func["^F"] = self.start_search
714
        self.resize()
715

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    def resize(self):
        Tab.resize(self)
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        roster_width = self.width//2
        info_width = self.width-roster_width-1
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        self.v_separator.resize(self.height-2, 1, 0, roster_width, self.core.stdscr)
        self.tab_win.resize(1, self.width, self.height-2, 0, self.core.stdscr)
722
        self.info_win.resize(self.height-2, info_width, 0, roster_width+1, self.core.stdscr, self.core.information_buffer)
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        self.roster_win.resize(self.height-2-3, roster_width, 0, 0, self.core.stdscr)
        self.contact_info_win.resize(3, roster_width, self.height-2-3, 0, self.core.stdscr)
        self.input.resize(1, self.width, self.height-1, 0, self.core.stdscr)
726

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    def completion(self):
        # Check if we are entering a command (with the '/' key)
        if isinstance(self.input, windows.CommandInput) and\
                not self.input.help_message:
            self.complete_commands(self.input)
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    def refresh(self, tabs, informations, roster):
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        if not self.visible:
            return
736
        self.v_separator.refresh()
737
        self.roster_win.refresh(roster)
738
        self.contact_info_win.refresh(self.roster_win.get_selected_row())
739
        # self.core.global_information_win.refresh(informations)
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        self.info_win.refresh(informations)
        self.tab_win.refresh(tabs, tabs[0])
        self.input.refresh()

    def get_name(self):
        return self.name

    def get_color_state(self):
        return self._color_state

    def set_color_state(self, color):
        self._color_state = color

    def on_input(self, key):
754 755
        res = self.input.do_command(key)
        if res:
756
            return True
757 758
        if key in self.key_func:
            return self.key_func[key]()
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    def toggle_offline_show(self):
        """
        Show or hide offline contacts
        """
        option = 'roster_show_offline'
        if config.get(option, 'false') == 'false':
            config.set_and_save(option, 'true')
        else:
            config.set_and_save(option, 'false')
        return True
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    def on_slash(self):
        """
        '/' is pressed, we enter "input mode"
        """
        curses.curs_set(1)
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        self.input = windows.CommandInput("", self.reset_help_message, self.execute_slash_command)
        self.input.resize(1, self.width, self.height-1, 0, self.core.stdscr)
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        self.input.do_command("/") # we add the slash

    def reset_help_message(self, _=None):
        curses.curs_set(0)
        self.input = self.default_help_message
        return True

    def execute_slash_command(self, txt):
        if txt.startswith('/'):
            self.core.execute(txt)
        return self.reset_help_message()
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    def on_lose_focus(self):
        self._color_state = theme.COLOR_TAB_NORMAL

    def on_gain_focus(self):
        self._color_state = theme.COLOR_TAB_CURRENT
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        if isinstance(self.input, windows.HelpText):
            curses.curs_set(0)
        else:
            curses.curs_set(1)
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    def add_message(self):
        return False

803
    def move_cursor_down(self):
804
        self.roster_win.move_cursor_down()
805
        return True
806

807
    def move_cursor_up(self):
808
        self.roster_win.move_cursor_up()
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        return True

    def on_scroll_down(self):
        # Scroll info win
        pass

    def on_scroll_up(self):
        # Scroll info down
        pass
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819
    def on_info_win_size_changed(self):
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        pass

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    def on_space(self):
        selected_row = self.roster_win.get_selected_row()
        if isinstance(selected_row, RosterGroup) or\
                isinstance(selected_row, Contact):
            selected_row.toggle_folded()
            return True
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    def on_enter(self):
830
        selected_row = self.roster_win.get_selected_row()
831
        self.core.on_roster_enter_key(selected_row)
832
        return selected_row
833

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    def start_search(self):
        """
        Start the search. The input should appear with a short instruction
        in it.
        """
        curses.curs_set(1)
840 841
        self.input = windows.CommandInput("[Search]", self.on_search_terminate, self.on_search_terminate, self.set_roster_filter)
        self.input.resize(1, self.width, self.height-1, 0, self.core.stdscr)
842 843
        return True

844 845
    def set_roster_filter(self, txt):
        roster._contact_filter = (jid_and_name_match, txt)
846 847
        self.roster_win.refresh(roster)
        return False
848

849 850 851
    def on_search_terminate(self, txt):
        curses.curs_set(0)
        roster._contact_filter = None
852
        self.reset_help_message()
853
        return False
854

855 856 857
    def just_before_refresh(self):
        return

858 859 860
    def on_close(self):
        return

861
class ConversationTab(ChatTab):
862
    """
863
    The tab containg a normal conversation (not from a MUC)
864
    """
865
    def __init__(self, core, jid):
866 867
        txt_buff = text_buffer.TextBuffer()
        ChatTab.__init__(self, core, txt_buff)
868 869
        self.color_state = theme.COLOR_TAB_NORMAL
        self._name = jid        # a conversation tab is linked to one specific full jid OR bare jid
870
        self.text_win = windows.TextWin()
871
        txt_buff.add_window(self.text_win)
872 873 874
        self.upper_bar = windows.ConversationStatusMessageWin()
        self.info_header = windows.ConversationInfoWin()
        self.info_win = windows.TextWin()
875
        self.core.information_buffer.add_window(self.info_win)
876 877
        self.tab_win = windows.GlobalInfoBar()
        self.input = windows.MessageInput()
878 879 880 881 882 883
        # keys
        self.key_func['^I'] = self.completion
        self.key_func['M-i'] = self.completion
        # commands
        self.commands['unquery'] = (self.command_unquery, _("Usage: /unquery\nUnquery: close the tab"), None)
        self.commands['part'] = (self.command_unquery, _("Usage: /part\Part: close the tab"), None)
884
        self.resize()
885

886 887 888
    def completion(self):
        self.complete_commands(self.input)

889 890 891 892 893 894 895
    def command_say(self, line):
        muc.send_private_message(self.core.xmpp, self.get_name(), line)
        self.core.add_message_to_text_buffer(self.get_room(), line, None, self.core.own_nick)

    def command_unquery(self, arg):
        self.core.close_tab()

896 897
    def resize(self):
        Tab.resize(self)
898
        self.text_win.resize(self.height-4-self.core.information_win_size, self.width, 1, 0, self.core.stdscr)
899
        self.text_win.rebuild_everything(self._room)
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        self.upper_bar.resize(1, self.width, 0, 0, self.core.stdscr)
        self.info_header.resize(1, self.width, self.height-3-self.core.information_win_size, 0, self.core.stdscr)
902
        self.info_win.resize(self.core.information_win_size, self.width, self.height-2-self.core.information_win_size, 0, self.core.stdscr, self.core.information_buffer)
903 904
        self.tab_win.resize(1, self.width, self.height-2, 0, self.core.stdscr)
        self.input.resize(1, self.width, self.height-1, 0, self.core.stdscr)
905

906
    def refresh(self, tabs, informations, roster):
907 908
        if not self.visible:
            return
909
        self.text_win.refresh(self._room)
910
        self.upper_bar.refresh(self.get_name(), roster.get_contact_by_jid(self.get_name()))
911
        self.info_header.refresh(self.get_name(), roster.get_contact_by_jid(self.get_name()), self._room, self.text_win)
912 913 914 915 916
        self.info_win.refresh(informations)
        self.tab_win.refresh(tabs, tabs[0])
        self.input.refresh()

    def get_color_state(self):
917 918 919
        if self.color_state == theme.COLOR_TAB_NORMAL or\
                self.color_state == theme.COLOR_TAB_CURRENT:
            return self.color_state
920 921 922
        return theme.COLOR_TAB_PRIVATE

    def set_color_state(self, color):
923
        self.color_state = color
924 925

    def get_name(self):
926
        return self._name
927 928

    def on_input(self, key):
929 930
        if key in self.key_func:
            self.key_func[key]()
931
            return False
932
        self.input.do_command(key)
933
        return False
934 935

    def on_lose_focus(self):
936
        self.set_color_state(theme.COLOR_TAB_NORMAL)
937 938
        self.text_win.remove_line_separator()
        self.text_win.add_line_separator()
939 940

    def on_gain_focus(self):
941 942
        self.set_color_state(theme.COLOR_TAB_CURRENT)
        curses.curs_set(1)
943 944

    def on_scroll_up(self):
945
        self.text_win.scroll_up(self.text_win.height-1)
946 947

    def on_scroll_down(self):
948
        self.text_win.scroll_down(self.text_win.height-1)
949

950
    def on_info_win_size_changed(self):
951 952 953
        self.text_win.resize(self.height-3-self.core.information_win_size, self.width, 0, 0, self.core.stdscr)
        self.info_header.resize(1, self.width, self.height-3-self.core.information_win_size, 0, self.core.stdscr)
        self.info_win.resize(self.core.information_win_size, self.width, self.height-2-self.core.information_win_size, 0, self.core.stdscr)
954 955

    def get_room(self):
956
        return self._room
957

958 959 960
    def get_text_window(self):
        return self.text_win

961 962
    def just_before_refresh(self):
        return
963

964 965 966
    def on_close(self):
        return

967 968 969 970 971 972 973 974 975 976 977 978 979 980
class MucListTab(Tab):
    """
    A tab listing rooms from a specific server, displaying various information,
    scrollable, and letting the user join them, etc
    """
    def __init__(self, core, server):
        Tab.__init__(self, core)
        self._color_state = theme.COLOR_TAB_NORMAL
        self.name = server
        self.upper_message = windows.Topic()
        columns = ('node-part','name', 'users')
        self.list_header = windows.ColumnHeaderWin(columns)
        self.listview = windows.ListWin(columns)
        self.tab_win = windows.GlobalInfoBar()
981
        self.default_help_message = windows.HelpText("“j”: join room.")
982 983 984 985 986 987
        self.input = self.default_help_message
        self.key_func["KEY_DOWN"] = self.listview.move_cursor_down
        self.key_func["KEY_UP"] = self.listview.move_cursor_up
        self.key_func["/"] = self.on_slash
        self.key_func['j'] = self.join_selected
        self.key_func['J'] = self.join_selected_no_focus
988 989
        self.key_func['^J'] = self.join_selected
        self.key_func['^M'] = self.join_selected
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        self.resize()

    def refresh(self, tabs, informations, roster):
        self.upper_message.refresh('Chatroom list on server %s' % self.name)
        self.list_header.refresh()
        self.listview.refresh()
        self.tab_win.refresh(tabs, tabs[0])
        self.input.refresh()

    def resize(self):
        Tab.resize(self)
        self.upper_message.resize(1, self.width, 0, 0, self.core.stdscr)
        column_size = {'node-part': (self.width-5)//4,
                       'name': (self.width-5)//4*3,
                       'users': 5}
        self.list_header.resize_columns(column_size)
        self.list_header.resize(1, self.width, 1, 0, self.core.stdscr)
        self.listview.resize_columns(column_size)
        self.listview.resize(self.height-4, self.width, 2, 0, self.core.stdscr)
        self.tab_win.resize(1, self.width, self.height-2, 0, self.core.stdscr)
        self.input.resize(1, self.width, self.height-1, 0, self.core.stdscr)

    def on_slash(self):
        """
        '/' is pressed, activate the input
        """
        curses.curs_set(1)
        self.input = windows.CommandInput("", self.reset_help_message, self.execute_slash_command)
        self.input.resize(1, self.width, self.height-1, 0, self.core.stdscr)
        self.input.do_command("/") # we add the slash

    def join_selected_no_focus(self):
        return

    def join_selected(self):
1025 1026 1027 1028
        row = self.listview.get_selected_row()
        if not row:
            return
        self.core.command_join(row['jid'])
1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039

    def reset_help_message(self, _=None):
        curses.curs_set(0)
        self.input = self.default_help_message
        return True

    def execute_slash_command(self, txt):
        if txt.startswith('/'):
            self.core.execute(txt)
        return self.reset_help_message()

1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056
    def get_name(self):
        return self.name

    def on_input(self, key):
        res = self.input.do_command(key)
        if res:
            return True
        if key in self.key_func:
            return self.key_func[key]()

    def on_lose_focus(self):
        self._color_state = theme.COLOR_TAB_NORMAL

    def on_gain_focus(self):
        self._color_state = theme.COLOR_TAB_CURRENT
        curses.curs_set(0)

1057
    def get_color_state(self):
1058
        return self._color_state
1059

1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075
class SimpleTextTab(Tab):
    """
    A very simple tab, with just a text displaying some
    information or whatever.
    For example used to display tracebacks
    """
    def __init__(self, core, text):
        Tab.__init__(self, core)
        self._color_state = theme.COLOR_TAB_NORMAL
        self.text_win = windows.SimpleTextWin(text)
        self.tab_win = windows.GlobalInfoBar()
        self.default_help_message = windows.HelpText("“Ctrl+q”: close")
        self.input = self.default_help_message
        self.key_func['^T'] = self.close
        self.key_func["/"] = self.on_slash
        self.resize()
1076

1077 1078 1079 1080 1081 1082 1083 1084
    def on_slash(self):
        """
        '/' is pressed, activate the input
        """
        curses.curs_set(1)
        self.input = windows.CommandInput("", self.reset_help_message, self.execute_slash_command)
        self.input.resize(1, self.width, self.height-1, 0, self.core.stdscr)
        self.input.do_command("/") # we add the slash
1085 1086 1087 1088 1089 1090 1091 1092

    def on_input(self, key):
        res = self.input.do_command(key)
        if res:
            return True
        if key in self.key_func:
            return self.key_func[key]()

1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105
    def close(self):
        self.core.close_tab()

    def resize(self):
        self.text_win.resize(self.height-2, self.width, 0, 0, self.core.stdscr)
        self.tab_win.resize(1, self.width, self.height-2, 0, self.core.stdscr)
        self.input.resize(1, self.width, self.height-1, 0, self.core.stdscr)

    def refresh(self, tabs, information, roster):
        self.text_win.refresh()
        self.tab_win.refresh(tabs, tabs[0])
        self.input.refresh()

1106 1107 1108 1109 1110 1111 1112 1113 1114 1115
    def on_lose_focus(self):
        self._color_state = theme.COLOR_TAB_NORMAL

    def on_gain_focus(self):
        self._color_state = theme.COLOR_TAB_CURRENT
        curses.curs_set(0)

    def get_color_state(self):
        return self._color_state

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def diffmatch(search, string):
    """
    Use difflib and a loop to check if search_pattern can
    be 'almost' found INSIDE a string.
    'almost' being defined by difflib
    """
    l = len(search)
    ratio = 0.7
    for i in range(len(string) - l + 1):
        if difflib.SequenceMatcher(None, search, string[i:i+l]).ratio() >= ratio:
            return True
    return False

1129 1130 1131 1132 1133
def jid_and_name_match(contact, txt):
    """
    A function used to know if a contact in the roster should
    be shown in the roster
    """
1134 1135 1136 1137 1138 1139 1140
    ratio = 0.7
    if not txt:
        return True             # Everything matches when search is empty
    user = JID(contact.get_bare_jid()).user
    if diffmatch(txt, user):
        return True
    if contact.get_name() and diffmatch(txt, contact.get_name()):
1141 1142
        return True
    return False