~skss/usu/misc

#!/usr/bin/python

# -*- coding: utf-8 -*-

#

# Copyright (c) 2011 Krasimir S. Stefanov

#

# AUTHOR:

# Krasimir S. Stefanov <lokiisyourmaster@gmail.com>

#

# NOTE:

# This file belongs in /usr/lib/nautilus/extensions-2.0/python/

 

import os

import os.path

import sys

 

import gtk

import nautilus

import urllib

import urlparse

import re

import gobject

import pygst

pygst.require("0.10")

import gst

import time

import datetime

import glob

 

import gettext as _gettext

from locale import getdefaultlocale

 

APP_NAME = "nautilus-v4l-infobar"

 

languages = ( [getdefaultlocale()[0]] or [] )

if 'LANGUAGE' in os.environ:

    languages = os.environ['LANGUAGE'].split(':') + languages

elif 'LANG' in os.environ:

    languages = os.environ['LANG'].split(':') + languages

 

_gettext.bindtextdomain(APP_NAME, os.path.join(sys.prefix, 'share', 'locale'))

_gettext.textdomain(APP_NAME)

 

gettext = _gettext.translation(APP_NAME, os.path.join(sys.prefix, 'share', 'locale'), languages=languages, fallback=True)

_ = gettext.gettext

 

def get_pictures_dir():

    if 'XDG_CONFIG_HOME' in os.environ:

        XDG_CONFIG_HOME = os.environ['XDG_CONFIG_HOME']

    else:

        XDG_CONFIG_HOME = os.path.join(os.path.expanduser('~'),'.config')

    user_dirs = os.path.join(XDG_CONFIG_HOME, 'user-dirs.dirs')

    if os.path.exists(user_dirs):

        user_dirs_content = open(user_dirs,'r').read()

        m = re.search('XDG_PICTURES_DIR="(.*?)"', user_dirs_content)

        if m:

            return os.path.expandvars(m.group(1))

        else:

            return None

    else:

        return None

        

class NautilusV4L(nautilus.LocationWidgetProvider):

    def __init__(self):

        pass

    

    def get_widget(self, uri, window):

        def take_picture(widget = None, path = None):

            now = datetime.datetime.now()

            current_time = now.strftime("%Y-%m-%d %H.%M.%S")

            player = gst.parse_launch ('v4l2src ! ffmpegcolorspace ! pngenc ! filesink location="%s/photo_%s.png"' % (path, current_time))

            player.set_state(gst.STATE_PLAYING)

            time.sleep(1)

            player.set_state(gst.STATE_NULL)

            player = None

           

        path = urllib.unquote(urlparse.urlparse(uri)[2]) # path

        XDG_PICTURES_DIR = get_pictures_dir()

        if XDG_PICTURES_DIR != None and glob.glob('/dev/video[0-999]') != []:

            if path == XDG_PICTURES_DIR or path.startswith(XDG_PICTURES_DIR):

                hbox = gtk.HBox()

                icon = gtk.image_new_from_icon_name('camera-photo', gtk.ICON_SIZE_SMALL_TOOLBAR)

                icon.show()

                button = gtk.Button(_('Take picture with the webcam'))

                button.connect('clicked', take_picture, path)

                hbox.pack_start(icon, expand=False, fill=False, padding=4)

                hbox.pack_end(button, expand=False, fill=False, padding=4)

                hbox.show_all()

                return hbox

            else:

                return None

        else:

            return None