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tabs.py

# coding: UTF-8
"""
Copyright (c) 2009 Marian Tietz
All rights reserved.

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:

1. Redistributions of source code must retain the above copyright
   notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
   notice, this list of conditions and the following disclaimer in the
   documentation and/or other materials provided with the distribution.

THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
SUCH DAMAGE.
"""

import sys
from typecheck import types
from dbus import String, UInt64

import urwid
from urwid import MetaSignals, SimpleListWalker, Text

import connection
import config

def tree_to_list(input_parents, target = None):

      l = []

      for parent in input_parents:

            if target and parent != target:
                  continue

            l.append(parent)

            for child in parent.children:
                  l.append(child)

      return l

def get_server(tab):
      if not tab:
            return None
      if type(tab) == Server:
            return tab
      else:
            parent = tab.parent
            if not parent:
                  return None
            return tab.parent
      return None

00067 class Tab(object):

      __metaclass__ = MetaSignals
      signals = ["child_added", "child_removed", "remove", "connected"]

      _valid_stati = [
            "informative",
            "actions", "actions_highlight","actions_own",
            "messages","messages_highlight","messages_own"]

      def __repr__(self):
            return "<tab: %s:%s:%s>" % (
                  type(self).__name__, self._parent, self.name)

      def __str__(self):
            return self.name

      # Properties

      @types(switch = bool)
      def set_connected(self, switch):
            self._connected = switch

            for child in self.children:
                  child.set_connected(switch)

            urwid.emit_signal(self, "connected", switch)

      connected = property(lambda x: x._connected, set_connected)

      def set_input_text(self, text):
            self._input_text = text

      input_text = property(lambda x: x._input_text, set_input_text)

      # Methods

      @types(name = (String, str, unicode))
      def __init__(self, name):
            self.name = name

            self._connected = False
            self._parent = None

            self.status = {}
            self.children = []
            self.input_history = None
            self.output_walker = SimpleListWalker([])
            self.input_text = ""
            self.auto_scroll = True

            self.read_line_index = -1

      def set_readline(self):
            if self.read_line_index != -1:
                  try:
                        del self.output_walker[self.read_line_index]
                  except IndexError:
                        pass

            line = Text("-"*30)
            line.set_align_mode ("center")
            self.output_walker.append(line)
            self.read_line_index = len(self.output_walker)-1

      def child_added(self, child):
            urwid.emit_signal(self, "child_added", self, child)
            child.set_connected(self.connected)
            self.children.append(child)

      def child_removed(self, child):
            urwid.emit_signal(self, "child_removed", self, child)
            try:
                  i = self.children.index(child)
            except ValueError:
                  pass
            else:
                  del self.children[i]

      def set_parent(self, parent):
            if parent in self.children:
                  print "Loop detected in '%s'.set_parent(%s)" % (
                        self, parent)
                  return

            try:
                  self._parent.child_removed(self)
            except AttributeError:
                  pass

            self._parent = parent

            try:
                  self._parent.child_added(self)
            except AttributeError:
                  pass

      parent = property(lambda x: x._parent, set_parent)

00166       def remove(self):
            """ emit remove signals """
            for child in self.children:
                  child.remove()
                  self.child_removed(child)
            urwid.emit_signal(self, "remove")
            self.set_parent(None)

      @types(name = str)
      def add_status(self, name):
            if name in self._valid_stati:
                  self.status[name] = True

      @types(status = str)
      def has_status(self, status):
            return self.status.has_key(status)

      @types(name = str)
      def remove_status(self, name):
            try:
                  del self.status[name]
            except KeyError:
                  pass

      def reset_status(self):
            self.status = {}

00193       def print_last_log(self, lines=0):
            """   Fetch the given amount of lines of history for
                  the channel on the given server and print it to the
                  channel's textview.
            """
            lines = UInt64(lines or config.get(
                  "chatting",
                  "last_log_lines",
                  "0"))

            if type(self) == Server:
                  server = self.name
                  channel = ""
            else:
                  server = self.parent.name
                  channel = self.name

            for line in connection.sushi.log(server, channel, lines):
                  self.output_walker.append(Text(unicode(line)))

00213 class Server(Tab):

      def __init__(self, name):
            Tab.__init__(self, name)

            self._nick = None
            self._away = ""

            self.support_chantypes = ()
            self.support_prefix = ()

      def update(self):
            self.support_prefix = connection.sushi.support_prefix(self.name)
            self.support_chantypes = connection.sushi.support_chantypes(self.name)

      @types(nick = (str,String))
      def set_nick(self, nick):
            self._nick = nick

      def get_nick(self):
            return self._nick

      @types(msg = str)
      def set_away(self, msg):
            self._away = msg

00239 class NickList(dict):

      def __init__(self):
            dict.__init__(self)

      @types(host = (str, unicode, String))
      def add_nick(self, host):
            (nick,ident,host) = connection.parse_from(host)
            self[unicode(nick)] = (ident,host)

      @types(nick = (str, unicode, String))
      def get_hostmask(self, nick):
            return self[unicode(nick)]

      @types(old = (str, unicode, String),
            new = (str, unicode, String))
      def rename_nick(self, old, new):
            u_old = unicode(old)
            self[unicode(new)] = self[u_old]
            del self[u_old]

      @types(nick = (str, unicode, String))
      def remove_nick(self, nick):
            del self[unicode(nick)]

      @types(nick = (str, unicode, String))
      def has_nick(self, nick):
            return self.has_key(unicode(nick))

00268 class Channel(Tab):

      @types(name = (String,str))
      def __init__(self, name, parent = None):
            Tab.__init__(self, name)
            self.joined = False
            self.set_parent(parent)
            self._topic = ""
            self.nicklist = NickList()

      @types(switch = bool)
      def set_joined(self, switch):
            self.joined = switch

      @types(topic = (String, unicode, str))
      def set_topic(self, topic):
            self._topic = unicode(topic)

      def get_topic(self):
            return self._topic

00289 class Query(Tab):

      def __init__(self, name, parent = None):
            Tab.__init__(self, name)
            self.set_parent(parent)

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