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|
# 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
import re
from datetime import datetime
from sugar import profile
from sugar.activity.activity import Activity, ActivityToolbox
from sugar.activity import activityfactory
from sugar.graphics.alert import NotifyAlert
from sugar.graphics.style import (Color, COLOR_BLACK, COLOR_WHITE,
FONT_BOLD, FONT_NORMAL)
from sugar.graphics.roundbox import CanvasRoundBox
from sugar.graphics.xocolor import XoColor
from sugar.graphics.palette import Palette, CanvasInvoker
from sugar.graphics.menuitem import MenuItem
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)
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()
self._chat_log = ''
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._alert(_('Off-line'), _('Share, or invite someone.'))
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._alert(_('On-line'), _('Connected'))
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 = '???'
self.add_text(buddy, text)
def _alert(self, title, text=None):
alert = NotifyAlert(timeout=5)
alert.props.title = title
alert.props.msg = text
self.add_alert(alert)
alert.connect('response', self._alert_cancel_cb)
alert.show()
def _alert_cancel_cb(self, alert, response_id):
self.remove_alert(alert)
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 = '???'
self.add_text(buddy, buddy.props.nick+' '+_('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 = '???'
self.add_text(buddy, buddy.props.nick+' '+_('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 = '???'
self.add_text(buddy, buddy.props.nick+' '+_('is here'),
status_message=True)
def make_root(self):
conversation = hippo.CanvasBox(
spacing=4,
background_color=COLOR_WHITE.get_int())
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, buddy, text, status_message=False):
"""Display text on screen, with name and colors.
buddy -- buddy object or dict {nick: string, color: string}
text -- string, what the buddy said
status_message -- boolean
False: show what buddy said
True: show what buddy did
"""
if buddy:
if type(buddy) is dict:
nick = buddy['nick']
color = buddy['color']
else:
nick = buddy.props.nick
color = buddy.props.color
try:
color_stroke, color_fill = color.split(',')
except ValueError:
color_stroke, color_fill = ('#000000', '#888888')
color_stroke = Color(color_stroke).get_int()
color_fill = Color(color_fill).get_int()
text_color = COLOR_WHITE.get_int()
self._add_log(nick, color, text, status_message)
else:
nick = '???' # XXX: should be '' but leave for debugging
color_stroke = COLOR_BLACK.get_int()
color_fill = COLOR_WHITE.get_int()
text_color = COLOR_BLACK.get_int()
rb = CanvasRoundBox(background_color=color_fill,
border_color=color_stroke,
padding=4)
rb.props.border_color = color_stroke # Bug #3742
if not status_message:
name = hippo.CanvasText(text=nick+': ',
color=text_color,
font_desc=FONT_BOLD.get_pango_desc())
rb.append(name)
regexp = re.compile('((http|ftp)s?://)?'
'(([-a-zA-Z0-9]+[.])+[-a-zA-Z0-9]{2,}|([0-9]{1,3}[.]){3}[0-9]{1,3})'
'(:[1-9][0-9]{0,4})?(/[-a-zA-Z0-9/%~@&_+=;:,.?#]*[a-zA-Z0-9/])?')
match = regexp.search(text)
while match:
# there is a URL in the text
starttext = text[:match.start()]
if starttext:
message = hippo.CanvasText(
text=starttext,
size_mode=hippo.CANVAS_SIZE_WRAP_WORD,
color=text_color,
font_desc=FONT_NORMAL.get_pango_desc(),
xalign=hippo.ALIGNMENT_START)
rb.append(message)
url = text[match.start():match.end()]
message = hippo.CanvasLink(
text=url,
color=text_color,
font_desc=FONT_BOLD.get_pango_desc(),
)
attrs = pango.AttrList()
attrs.insert(pango.AttrUnderline(pango.UNDERLINE_SINGLE, 0, 32767))
message.set_property("attributes", attrs)
message.connect('activated', self._link_activated_cb)
palette = URLMenu(url)
palette.props.invoker = CanvasInvoker(message)
rb.append(message)
text = text[match.end():]
match = regexp.search(text)
if text:
message = hippo.CanvasText(
text=text,
size_mode=hippo.CANVAS_SIZE_WRAP_WORD,
color=text_color,
font_desc=FONT_NORMAL.get_pango_desc(),
xalign=hippo.ALIGNMENT_START)
rb.append(message)
box = hippo.CanvasBox(padding=4)
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, 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, nick, color, text, status_message):
"""Add the text to the chat log.
nick -- string, buddy nickname
color -- string, buddy.props.color
text -- string, body of message
status_message -- boolean
"""
self._chat_log += '%s\t%s\t%s\t%d\t%s\n' % (
datetime.strftime(datetime.now(), '%b %d %H:%M:%S'),
nick, color, status_message, 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.
"""
logger.debug('write_file: writing %s' % file_path)
f = open(file_path, 'w')
try:
f.write(self._get_log())
finally:
f.close()
def read_file(self, file_path):
"""Load a chat log from the Journal.
Handling the Journal is provided by Activity - we only need
to define this method.
"""
logger.debug('read_file: reading %s' % file_path)
log = open(file_path).readlines()
for line in log:
timestamp, nick, color, status, text = line.strip().split('\t')
status_message = bool(int(status))
self.add_text({'nick': nick, 'color': color},
text, status_message)
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)
class URLMenu(Palette):
def __init__(self, url):
Palette.__init__(self, url)
self.url = url
menu_item = MenuItem(_('Copy to Clipboard'), 'edit-copy')
menu_item.connect('activate', self._copy_to_clipboard_cb)
self.menu.append(menu_item)
menu_item.show()
def _copy_to_clipboard_cb(self, menuitem):
logger.debug('Copy %s to clipboard', self.url)
clipboard = gtk.clipboard_get()
clipboard.set_text(self.url)
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