# 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 from gettext import gettext as _ 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.activity import activityfactory from sugar.graphics.icon import CanvasIcon from sugar.graphics.roundbox import CanvasRoundBox from sugar.graphics.xocolor import XoColor 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 ( CHANNEL_GROUP_FLAG_CHANNEL_SPECIFIC_HANDLES, 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() self.entry.grab_focus() 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.add_text(self.owner.props.nick, self._buddy_icon(self.owner), _('Share, or invite someone.'), status_message=True) def _shared_cb(self, activity): logger.debug('Chat was shared') self._setup() def _setup(self): self.text_channel = TextChannelWrapper(self) self.text_channel.set_received_callback(self._received_cb) self.add_text(self.owner.props.nick, self._buddy_icon(self.owner), _('Connected'), status_message=True) self._shared_activity.connect('buddy-joined', self._buddy_joined_cb) self._shared_activity.connect('buddy-left', self._buddy_left_cb) self.entry.set_editable(True) 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, buddy, text): """Show message that was received.""" 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'), status_message=True) 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'), status_message=True) 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'), status_message=True) 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='computer-xo', 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=4) self.conversation = conversation entry = gtk.Entry() entry.set_editable(False) entry.connect('activate', self.entry_activate_cb) self.entry = entry 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 vadj = self.scrolled_window.get_vadjustment() vadj.connect('changed', self.rescroll) widget = hippo.CanvasWidget(widget=sw) box = gtk.VBox(homogeneous=False) box.pack_start(sw) box.pack_start(hbox, expand=False) return box def rescroll(self, adj, scroll=None): """Scroll the chat window to the bottom""" adj.set_value(adj.upper-adj.page_size) def _link_activated_cb(self, link): activityfactory.create_with_uri( 'org.laptop.WebActivity', link.props.text) def add_text(self, name, icon, text, status_message=False): """Display text on screen, with name and icon. name -- string, buddy nick icon -- buddy icon - see self._buddy_icon text -- string, what the buddy said status_message -- boolean False: show what buddy said True: show what buddy did """ if status_message: self._add_log('*', '%s %s' % (name, text)) else: self._add_log(name, text) if text.startswith('http://'): text = hippo.CanvasLink(text=text) text.connect('activated', self._link_activated_cb) else: 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=5) if icon: vbox.append(icon) vbox.append(name) if status_message: rb = CanvasRoundBox(background_color=0x808080ff, padding=3) else: rb = CanvasRoundBox(background_color=0xffffffff, padding=3) rb.append(text) box = hippo.CanvasBox( orientation=hippo.ORIENTATION_HORIZONTAL, spacing=5) box.append(vbox) box.append(rb) self.conversation.append(box) 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 = '' if self.text_channel: self.text_channel.send(text) else: logger.debug('Tried to send message but text channel ' 'not connected.') 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 TextChannelWrapper(object): """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_cb = None self._activity = activity self._logger = logging.getLogger( 'chat-activity.TextChannelWrapper') 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 set_received_callback(self, callback): """Connect the function callback to the signal. callback -- callback function taking buddy and text args """ if not self._text_chan: self._logger.debug( 'Failed to connect callback - text channel not connected.') 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): """Handle received text from the text channel. Converts sender to a Buddy. Calls self._activity_cb which is a callback to the activity. """ if self._activity_cb: # XXX: cache these buddy = self._get_buddy(sender) self._activity_cb(buddy, text) else: self._logger.debug('Throwing received message on the floor' ' since there is no callback connected. See ' 'set_received_callback') 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() elif group.GetGroupFlags() & \ CHANNEL_GROUP_FLAG_CHANNEL_SPECIFIC_HANDLES: handle = group.GetHandleOwners([cs_handle])[0] else: handle = cs_handle # XXX: deal with failure to get the handle owner assert handle != 0 return self._activity._pservice.get_buddy_by_telepathy_handle( tp_name, tp_path, handle)