#!/usr/bin/env python import sha import dbus import dbus.service import dbus.glib import pygtk pygtk.require('2.0') import gtk, gobject, pango from sugar.chat.Emoticons import Emoticons from sugar.chat.ChatToolbar import ChatToolbar from sugar.chat.ChatEditor import ChatEditor from sugar.presence.PresenceService import PresenceService import richtext PANGO_SCALE = 1024 # Where is this defined? class Chat(gtk.VBox): SERVICE_TYPE = "_olpc_chat._tcp" SERVICE_PORT = 6100 def __init__(self): gtk.VBox.__init__(self, False, 6) self._stream_writer = None self.set_border_width(12) chat_vbox = gtk.VBox() chat_vbox.set_spacing(6) self._chat_sw = gtk.ScrolledWindow() self._chat_sw.set_shadow_type(gtk.SHADOW_IN) self._chat_sw.set_policy(gtk.POLICY_NEVER, gtk.POLICY_ALWAYS) self._chat_view = richtext.RichTextView() self._chat_view.connect("link-clicked", self.__link_clicked_cb) self._chat_view.set_editable(False) self._chat_view.set_cursor_visible(False) self._chat_view.set_pixels_above_lines(7) self._chat_view.set_left_margin(5) self._chat_sw.add(self._chat_view) self._chat_view.show() chat_vbox.pack_start(self._chat_sw) self._chat_sw.show() self.pack_start(chat_vbox) chat_vbox.show() self._editor = ChatEditor(self) toolbar = ChatToolbar(self._editor.get_buffer()) self.pack_start(toolbar, False) toolbar.show() self.pack_start(self._editor, False) self._editor.show() def __get_browser_shell(self): bus = dbus.SessionBus() proxy_obj = bus.get_object('com.redhat.Sugar.Browser', '/com/redhat/Sugar/Browser') self._browser_shell = dbus.Interface(proxy_obj, 'com.redhat.Sugar.BrowserShell') def __link_clicked_cb(self, view, address): self.__get_browser_shell().open_browser(address) def _scroll_chat_view_to_bottom(self): # Only scroll to bottom if the view is already close to the bottom vadj = self._chat_sw.get_vadjustment() if vadj.value + vadj.page_size > vadj.upper * 0.8: vadj.value = vadj.upper - vadj.page_size self._chat_sw.set_vadjustment(vadj) def _message_inserted(self): gobject.idle_add(self._scroll_chat_view_to_bottom) def _insert_buddy(self, buf, buddy): # Stuff in the buddy icon, if we have one for this buddy icon = buddy.get_icon_pixbuf() if icon: rise = int(icon.get_height() / 4) * -1 hash_string = "%s-%s" % (buddy.get_nick_name(), buddy.get_address()) sha_hash = sha.new() sha_hash.update(hash_string) tagname = "buddyicon-%s" % sha_hash.hexdigest() if not buf.get_tag_table().lookup(tagname): buf.create_tag(tagname, rise=(rise * PANGO_SCALE)) aniter = buf.get_end_iter() buf.insert_pixbuf(aniter, icon) aniter.backward_char() enditer = buf.get_end_iter() buf.apply_tag_by_name(tagname, aniter, enditer) # Stick in the buddy's nickname if not buf.get_tag_table().lookup("nickname"): buf.create_tag("nickname", weight=pango.WEIGHT_BOLD) aniter = buf.get_end_iter() offset = aniter.get_offset() buf.insert(aniter, " " + buddy.get_nick_name() + ": ") enditer = buf.get_iter_at_offset(offset) buf.apply_tag_by_name("nickname", aniter, enditer) def _insert_rich_message(self, buddy, msg): msg = Emoticons.get_instance().replace(msg) buf = self._chat_view.get_buffer() self._insert_buddy(buf, buddy) serializer = richtext.RichTextSerializer() serializer.deserialize(msg, buf) aniter = buf.get_end_iter() buf.insert(aniter, "\n") self._message_inserted() def _insert_sketch(self, nick, svgdata): """Insert a sketch object into the chat buffer.""" pbl = gtk.gdk.PixbufLoader("svg") pbl.write(svgdata) pbl.close() pbuf = pbl.get_pixbuf() buf = self._chat_view.get_buffer() self._insert_buddy(buf, nick) rise = int(pbuf.get_height() / 3) * -1 sha_hash = sha.new() sha_hash.update(svgdata) tagname = "sketch-%s" % sha_hash.hexdigest() if not buf.get_tag_table().lookup(tagname): buf.create_tag(tagname, rise=(rise * PANGO_SCALE)) aniter = buf.get_end_iter() buf.insert_pixbuf(aniter, pbuf) aniter.backward_char() enditer = buf.get_end_iter() buf.apply_tag_by_name(tagname, aniter, enditer) aniter = buf.get_end_iter() buf.insert(aniter, "\n") self._message_inserted() def _get_first_richtext_chunk(self, msg): """Scan the message for the first richtext-tagged chunk and return it.""" rt_last = -1 tag_rt_start = "" tag_rt_end = "" rt_first = msg.find(tag_rt_start) length = -1 if rt_first >= 0: length = len(msg) rt_last = msg.find(tag_rt_end, rt_first) if rt_first >= 0 and rt_last >= (rt_first + len(tag_rt_start)) and length > 0: return msg[rt_first:rt_last + len(tag_rt_end)] return None def _get_first_sketch_chunk(self, msg): """Scan the message for the first SVG-tagged chunk and return it.""" svg_last = -1 tag_svg_start = "") if desc_start < 0: return None ignore = msg.find("= 0: length = len(msg) svg_last = msg.find(tag_svg_end, svg_first) if svg_first >= 0 and svg_last >= (svg_first + len(tag_svg_start)) and length > 0: return msg[desc_start:svg_last + len(tag_svg_end)] return None def recv_message(self, buddy, msg): """Insert a remote chat message into the chat buffer.""" if not buddy: return chunk = self._get_first_richtext_chunk(msg) if chunk: self._insert_rich_message(buddy, chunk) return chunk = self._get_first_sketch_chunk(msg) if chunk: self._insert_sketch(buddy, chunk) return def send_sketch(self, svgdata): if not svgdata or not len(svgdata): return self._stream_writer.write(svgdata) owner = PresenceService.get_instance().get_owner() self._insert_sketch(owner.get_nick_name(), svgdata) def send_text_message(self, text): """Send a chat message and insert it into the local buffer.""" if len(text) <= 0: return self._stream_writer.write(text) owner = PresenceService.get_instance().get_owner() self._insert_rich_message(owner, text)