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# Copyright 2008 Chris Ball.
#
# 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
"""Screencast Activity: An activity for producing XO tutorials."""
from gettext import gettext as _
from dbus.service import method
from dbus.service import signal as dbus_signal
import fcntl
import gobject
import gtk
import logging
import os
import popen2
import re
import shutil
import signal
import sys
from sugar.activity import activity
from sugar.activity.activity import ActivityToolbox
from sugar.activity.activity import get_bundle_path
from sugar.activity.activity import get_bundle_name
from sugar.graphics.alert import NotifyAlert
from sugar.graphics.combobox import ComboBox
SERVICE = "org.laptop.Screencast"
IFACE = SERVICE
PATH = "/org/laptop/Screencast"
OUTFILE = "/tmp/recordmydesktop.ogv"
class ScreencastActivity(activity.Activity):
"""Screencast Activity as specified in activity.info"""
def __init__(self, handle):
"""Set up the Screencast activity."""
super(ScreencastActivity, self).__init__(handle)
self._logger = logging.getLogger('screencast-activity')
self.timed_id2 = None
from sugar.graphics.menuitem import MenuItem
from sugar.graphics.icon import Icon
# Main layout. Record button, stop button, label.
hbox = gtk.HBox()
vbox = gtk.VBox()
# Toolbar.
toolbox = ActivityToolbox(self)
activity_toolbar = toolbox.get_activity_toolbar()
activity_toolbar.remove(activity_toolbar.share)
activity_toolbar.share = None
activity_toolbar.remove(activity_toolbar.keep)
activity_toolbar.keep = None
self.set_toolbox(toolbox)
toolbox.show()
# Recording buttons.
self.record = gtk.Button("Record")
self.record.connect("clicked", self.record_cb)
self.record.set_size_request(150, 150)
recimage = gtk.Image()
recimage.set_from_icon_name("media-record", -1)
self.record.set_image(recimage)
self.stop = gtk.Button("Stop")
self.stop.connect("clicked", self.stop_cb)
self.stop.set_size_request(150, 150)
self.stop.set_sensitive(False)
stopimage = gtk.Image()
stopimage.set_from_icon_name("media-playback-stop", -1)
self.stop.set_image(stopimage)
# Record sound checkbox and quality selector
hbox2 = gtk.HBox(spacing=50)
self.audiocheckbox = gtk.CheckButton(label="record sound")
self.audiocheckbox.set_active(True)
hbox2.add(self.audiocheckbox)
self.qualitycombo = ComboBox()
self.qualitycombo.append_item("0", "high quality video")
self.qualitycombo.append_item("1", "medium quality video")
self.qualitycombo.append_item("2", "low quality video")
self.qualitycombo.set_active(2)
hbox2.add(self.qualitycombo)
options = gtk.Alignment(0.5, 0, 0, 0)
options.add(hbox2)
# Status label.
self.status = gtk.Label(_("Status: Stopped"))
hbox.pack_start(self.record, expand=False, padding=40)
hbox.pack_start(self.stop, expand=False, padding=40)
# Encoding progress bar
self.progressbar = gtk.ProgressBar(adjustment=None)
self.progressbar.set_fraction(0)
self.progressbar.set_text("0% complete")
valign = gtk.Alignment(0.5, 0.4, 0, 0)
valign.add(vbox)
vbox.pack_end(self.progressbar, expand=True, padding=20)
vbox.pack_end(self.status, expand=True, padding=40)
vbox.pack_end(hbox, expand=True, fill=False)
vbox.pack_end(options, expand=True, padding=40)
self.set_canvas(valign)
self.show_all()
self.progressbar.hide()
def write_file(self, file_path):
print "Saving file to %s" % file_path
self.metadata['mime_type'] = 'video/ogg'
#try:
# shutil.copy(OUTFILE, file_path)
#except IOError, e:
# print "unable to save to outfile: %s" % e
# FIXME: This fails in /tmp.
# that comment by probably cjb
# I have no idea why it was saving to filepath
#added copy-to-journal in check_status_cb
#error msgs are OK probably just no video processed
#Tony Forster
#try:
# os.remove(OUTFILE)
#except OSError, e:
# print "unable to remove outfile: %s" % e
def can_close(self):
if self.status.get_text().startswith("Status: Stopped"):
return True
else:
self.alert("You need to finish operation before quitting.", self.status.get_text())
def alert(self, title, text=None):
alert = NotifyAlert(timeout=10)
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 record_cb(self, record):
self.stop.set_sensitive(True)
self.record.set_sensitive(False)
self.audiocheckbox.set_sensitive(False)
self.qualitycombo.set_sensitive(False)
execargs = ["./recordmydesktop", "--no-frame", "--overwrite"]
if not self.audiocheckbox.get_active():
execargs.append("--no-sound")
if self.qualitycombo.get_active() == 0:
execargs.append("-v_quality") # in later versions seems to be --v_quality instead
execargs.append("0")
elif self.qualitycombo.get_active() == 1:
execargs.append("-v_quality") # in later versions seems to be --v_quality instead
execargs.append("31")
execargs.append("-o")
execargs.append(OUTFILE)
self.childp = popen2.Popen3(execargs, "t", 0)
flags = fcntl.fcntl(self.childp.childerr, fcntl.F_GETFL)
fcntl.fcntl(self.childp.childerr, fcntl.F_SETFL, flags | os.O_NONBLOCK)
flags = fcntl.fcntl(self.childp.fromchild, fcntl.F_GETFL)
fcntl.fcntl(self.childp.fromchild, fcntl.F_SETFL, flags | os.O_NONBLOCK)
self.timed_id = gobject.timeout_add(1000, self.check_status_cb)
self.status.set_text("Status: Recording")
def stop_cb(self, stop):
exitret = os.waitpid(self.childp.pid, os.WNOHANG)
if exitret[0] == 0:
os.kill(self.childp.pid, signal.SIGTERM)
self.stop.set_sensitive(False)
def update_counter(self):
self.progressbar.show()
while True:
try:
strstdout = self.childp.fromchild.read()
self.counter_fraction = float(re.search("[0-9][0-9]?[0-9]?", strstdout).group())
percentage = self.counter_fraction / 100.0
if percentage > 1.0:
percentage = 1.0
#print "PORCENTAJE %s " % str(percentage)
self.progressbar.set_fraction(percentage)
self.progressbar.set_text("%d%%"%int(percentage * 100)+' complete')
except IOError:
gtk.main_iteration(block=False)
except AttributeError:
break
except:
print "Unexpected error:", sys.exc_info()[0]
print "Unexpected error:", sys.exc_info()[1]
break
def check_status_cb(self):
if self.childp.pid:
exitret = os.waitpid(self.childp.pid, os.WNOHANG)
if exitret[0] != 0:
# The recording process exited
self.status.set_text("Status: Stopped")
if self.timed_id2:
gobject.source_remove(self.timed_id2)
self.timed_id2 = None
self.progressbar.hide()
self.alert("Success:", "Saved recording to journal")
self.progressbar.set_fraction(0)
self.progressbar.set_text('0% complete')
self.record.set_sensitive(True)
self.audiocheckbox.set_sensitive(True)
self.qualitycombo.set_sensitive(True)
if self._jobject.metadata['title_set_by_user'] == '1':
title = self.metadata['title']
else:
title = "My Screencast"
os.system("copy-to-journal /tmp/recordmydesktop.ogv -m video/ogg -t \"%s\""% title)
return False
else:
# Maybe we have new stderr.
while True:
try:
err_line = self.childp.childerr.readline()
if err_line.startswith("STATE:ENCODING"):
if not self.timed_id2:
self.timed_id2=gobject.timeout_add(300, self.update_counter)
self.status.set_text("Status: Encoding, please wait")
except:
break
return True
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