# Copyright 2007 Collabora Ltd. # # This program 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; either version 2 of the License, or # (at your option) any later version. # # This program 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 this program; if not, write to the Free Software # Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA import dbus import hippo import gtk import pango import logging from datetime import datetime from sugar import profile from sugar.activity.activity import Activity, ActivityToolbox from sugar.graphics import font from sugar.graphics.canvasicon import CanvasIcon from sugar.graphics.roundbox import RoundBox from sugar.graphics.xocolor import XoColor from sugar.graphics.units import points_to_pixels as px from sugar.presence import presenceservice from telepathy.client import Connection, Channel from telepathy.interfaces import ( CONN_INTERFACE, PROPERTIES_INTERFACE, CHANNEL_INTERFACE_GROUP, CONN_INTERFACE_ALIASING, CHANNEL_TYPE_TEXT) from telepathy.constants import ( CONNECTION_HANDLE_TYPE_NONE, CONNECTION_HANDLE_TYPE_CONTACT, CONNECTION_HANDLE_TYPE_ROOM, CHANNEL_TEXT_MESSAGE_TYPE_NORMAL, CONNECTION_STATUS_CONNECTED, CONNECTION_STATUS_DISCONNECTED, CONNECTION_STATUS_CONNECTING) logger = logging.getLogger('chat-activity') class Chat(Activity): def __init__(self, handle): Activity.__init__(self, handle) self.set_title('Chat') root = self.make_root() self.set_canvas(root) root.show_all() toolbox = ActivityToolbox(self) self.set_toolbox(toolbox) toolbox.show() self.owner = self._pservice.get_owner() # for chat logging, we want to save the log as text/plain # in the Journal so it will resume with the appropriate # activity to view the chat log. # XXX MorganCollett 2007/06/19: change to text/html once the # browser is verified to handle that mime type self._chat_log = '' self.metadata['activity'] = '' self.metadata['mime_type'] = 'text/plain' self.connect('shared', self._shared_cb) self.text_channel = None if self._shared_activity: # we are joining the activity self.connect('joined', self._joined_cb) if self.get_shared(): # we have already joined self._joined_cb() else: # we are creating the activity self.share() # Share immediately since there are no invites yet def _shared_cb(self, activity): logger.debug('Chat was shared') self._setup() def _setup(self): self.text_channel = TextChannel(self) self.text_channel.received_callback(self._received_cb) self._shared_activity.connect('buddy-joined', self._buddy_joined_cb) self._shared_activity.connect('buddy-left', self._buddy_left_cb) def _joined_cb(self, activity): """Joined a shared activity.""" if not self._shared_activity: return logger.debug('Joined a shared chat') for buddy in self._shared_activity.get_joined_buddies(): self._buddy_already_exists(buddy) self._setup() #def _received_cb(self, id, timestamp, sender, type, flags, text): def _received_cb(self, buddy, text): """Show message that was received.""" # buddy = self._get_buddy(sender) if buddy: nick = buddy.props.nick else: nick = '' icon = self._buddy_icon(buddy) self.add_text(nick, icon, text) def _buddy_joined_cb (self, activity, buddy): """Show a buddy who joined""" if buddy == self.owner: return if buddy: nick = buddy.props.nick else: nick = '???' icon = self._buddy_icon(buddy) self.add_text(nick, icon, 'joined the chat') def _buddy_left_cb (self, activity, buddy): """Show a buddy who joined""" if buddy == self.owner: return if buddy: nick = buddy.props.nick else: nick = '???' icon = self._buddy_icon(buddy) self.add_text(nick, icon, 'left the chat') def _buddy_already_exists(self, buddy): """Show a buddy already in the chat.""" if buddy == self.owner: return if buddy: nick = buddy.props.nick else: nick = '???' icon = self._buddy_icon(buddy) self.add_text(nick, icon, 'is here') def _buddy_icon(self, buddy): """Make a CanvasIcon for this Buddy""" if buddy: buddy_color = buddy.props.color else: buddy_color = '' if not buddy_color: buddy_color = "#000000,#ffffff" icon = CanvasIcon( icon_name='theme:stock-buddy', xo_color=XoColor(buddy_color)) return icon def make_root(self): text = hippo.CanvasText( text='Hello', font_desc=pango.FontDescription('Sans 64'), color=0xffffffff) conversation = hippo.CanvasBox(spacing=px(4)) self.conversation = conversation entry = gtk.Entry() # XXX make this entry unsensitive while we're not # connected. entry.connect('activate', self.entry_activate_cb) hbox = gtk.HBox() hbox.add(entry) canvas = hippo.Canvas() canvas.set_root(conversation) sw = gtk.ScrolledWindow() sw.set_policy(gtk.POLICY_NEVER, gtk.POLICY_AUTOMATIC) sw.add_with_viewport(canvas) self.scrolled_window = sw widget = hippo.CanvasWidget(widget=sw) box = gtk.VBox(homogeneous=False) box.pack_start(sw) box.pack_start(hbox, expand=False) return box def add_text(self, name, icon, text): self._add_log(name, text) text = hippo.CanvasText( text=text, size_mode=hippo.CANVAS_SIZE_WRAP_WORD, xalign=hippo.ALIGNMENT_START) name = hippo.CanvasText(text=name) vbox = hippo.CanvasBox(padding=px(5)) if icon: vbox.append(icon) vbox.append(name) rb = RoundBox(background_color=0xffffffff, padding=px(3)) rb.append(text) box = hippo.CanvasBox( orientation=hippo.ORIENTATION_HORIZONTAL, spacing=px(5)) box.append(vbox) box.append(rb) self.conversation.append(box) aw, ah = self.conversation.get_allocation() rw, rh = self.conversation.get_height_request(aw) adj = self.scrolled_window.get_vadjustment() adj.set_value(adj.upper - adj.page_size - 804) def entry_activate_cb(self, entry): text = entry.props.text logger.debug('Entry: %s' % text) if text: self.add_text(self.owner.props.nick, self._buddy_icon(self.owner), text) entry.props.text = '' self.text_channel.send(text) def _add_log(self, name, text): """Add the text to the chat log.""" self._chat_log += '%s<%s>\t%s\n' % ( datetime.strftime(datetime.now(), '%b %d %H:%M:%S '), name, text) def _get_log(self): return self._chat_log def write_file(self, file_path): """Store chat log in Journal. Handling the Journal is provided by Activity - we only need to define this method. """ f = open(file_path, 'w') try: f.write(self._get_log()) finally: f.close() class TextChannel(): """Wrap a telepathy text Channel to make usage simpler.""" def __init__(self, activity): """Connect to the text channel if possible.""" self._text_chan = None self._activity = activity self._logger = logging.getLogger('chat-activity.TextChannel') self._connect() def _connect(self): bus_name, conn_path, channel_paths = self._activity._shared_activity.get_channels() for channel_path in channel_paths: channel = Channel(bus_name, channel_path) htype, handle = channel.GetHandle() if htype == CONNECTION_HANDLE_TYPE_ROOM: self._logger.debug('Found our room: it has handle#%d', handle) room = handle ctype = channel.GetChannelType() if ctype == CHANNEL_TYPE_TEXT: self._logger.debug('Found our Text channel at %s', channel_path) self._text_chan = channel def connected(self): return (self._text_chan is not None) def send(self, text): if self._text_chan: self._text_chan[CHANNEL_TYPE_TEXT].Send( CHANNEL_TEXT_MESSAGE_TYPE_NORMAL, text) def close(self): if self._text_chan: self._text_chan.Close() self._text_chan = None def signal_connect(self, signal, callback): """Connect the function callback to the signal. signal -- string, for example 'Received' callback -- callback function """ if self._text_chan: self._text_chan[CHANNEL_TYPE_TEXT].connect_to_signal(signal, callback) def received_callback(self, callback): """Connect the function callback to the signal. callback -- callback function taking buddy and text args """ if not self._text_chan: return self._activity_cb = callback self._text_chan[CHANNEL_TYPE_TEXT].connect_to_signal('Received', self._received_cb) def _received_cb(self, id, timestamp, sender, type, flags, text): buddy = self._get_buddy(sender) self._activity_cb(buddy, text) def _get_buddy(self, cs_handle): """Get a Buddy from a handle.""" tp_name, tp_path = self._activity._pservice.get_preferred_connection() conn = Connection(tp_name, tp_path) group = self._text_chan[CHANNEL_INTERFACE_GROUP] my_csh = group.GetSelfHandle() if my_csh == cs_handle: handle = conn.GetSelfHandle() else: handle = group.GetHandleOwners([cs_handle])[0] # XXX: deal with failure to get the handle owner assert handle != 0 # XXX: we're assuming that we have Buddy objects for all contacts - # this might break when the server becomes scalable. return self._activity._pservice.get_buddy_by_telepathy_handle(tp_name, tp_path, handle)