From 52062134457c09118878031b90c4dacf323ba029 Mon Sep 17 00:00:00 2001
From: Ignacio Rodríguez <ignaciorodriguez@sugarlabs.org>
Date: Fri, 22 Nov 2013 19:41:33 +0000
Subject: Use sound for events.

---
diff --git a/activity.py b/activity.py
index d746d35..de76eb8 100644
--- a/activity.py
+++ b/activity.py
@@ -16,9 +16,17 @@
 
 from gi.repository import Gtk
 from gi.repository import Gdk
+
+try:
+    from gi.repository import Gst
+    HAS_SOUND = True
+except:
+    HAS_SOUND = False
+
 import logging
 import json
 import math
+import os
 from gettext import gettext as _
 
 from telepathy.interfaces import CHANNEL_INTERFACE
@@ -35,6 +43,7 @@ from sugar3.graphics.alert import NotifyAlert
 from sugar3.graphics.palette import Palette
 from sugar3.graphics.toolbarbox import ToolbarBox
 from sugar3.activity import activity
+from sugar3.activity.activity import get_bundle_path
 from sugar3.presence import presenceservice
 from sugar3.activity.widgets import ActivityButton
 from sugar3.activity.widgets import TitleEntry
@@ -50,6 +59,8 @@ logger = logging.getLogger('chat-activity')
 
 SMILIES_COLUMNS = 5
 
+if HAS_SOUND:
+    Gst.init([])
 
 # pylint: disable-msg=W0223
 class Chat(activity.Activity):
@@ -111,6 +122,9 @@ class Chat(activity.Activity):
         self._chat_is_room = False
         self.text_channel = None
 
+        if HAS_SOUND:
+            self.element = Gst.ElementFactory.make("playbin", "Player")
+
         if self.shared_activity:
             # we are joining the activity
             self.connect('joined', self._joined_cb)
@@ -222,6 +236,11 @@ class Chat(activity.Activity):
         logger.debug('Received message from %s: %s', nick, text)
         self.chatbox.add_text(buddy, text)
 
+        if self.owner.props.nick in text:
+            self.play_sound("said_nick")
+        else:
+            self.play_sound("received")
+
     def _alert(self, title, text=None):
         alert = NotifyAlert(timeout=5)
         alert.props.title = title
@@ -241,6 +260,8 @@ class Chat(activity.Activity):
             buddy.props.nick + ' ' + _('joined the chat'),
             status_message=True)
 
+        self.play_sound("login")
+
     def _buddy_left_cb(self, sender, buddy):
         """Show a buddy who joined"""
         if buddy == self.owner:
@@ -249,6 +270,8 @@ class Chat(activity.Activity):
             buddy.props.nick + ' ' + _('left the chat'),
             status_message=True)
 
+        self.play_sound("logout")
+
     def _buddy_already_exists(self, buddy):
         """Show a buddy already in the chat."""
         if buddy == self.owner:
@@ -318,6 +341,7 @@ class Chat(activity.Activity):
             entry.props.text = ''
             if self.text_channel:
                 self.text_channel.send(text)
+                self.play_sound("send")
             else:
                 logger.debug('Tried to send message but text channel '
                     'not connected.')
@@ -358,6 +382,22 @@ class Chat(activity.Activity):
                     text, status_message)
                 last_line_was_timestamp = False
 
+    def play_sound(self, event):
+        if not HAS_SOUND:
+            return
+        SOUNDS_PATH = os.path.join(get_bundle_path(), 'sounds')
+        SOUNDS = {"said_nick": os.path.join(SOUNDS_PATH, 'alert.wav'),
+            "login": os.path.join(SOUNDS_PATH, 'login.wav'),
+            "logout": os.path.join(SOUNDS_PATH, 'logout.wav'),
+            "received": os.path.join(SOUNDS_PATH, 'receive.wav'),
+            "send": os.path.join(SOUNDS_PATH, 'send.wav')}
+
+        self.element.set_state(Gst.State.NULL)
+        self.element.set_property("uri", "file://%s" % SOUNDS[event])
+        self.element.set_state(Gst.State.PLAYING)
+
+        return True
+
 class TextChannelWrapper(object):
     """Wrap a telepathy Text Channfel to make usage simpler."""
 
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