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SUPPORTED_FORMATS = 'image/jpeg', 'image/png'
BACKGROUND_SCHEMA = 'org.mate.background'
BACKGROUND_KEY = 'picture-filename'
try:
# Python 3.
from urllib.parse import unquote, urlparse
except:
# Python 2.
from urllib import unquote
from urlparse import urlparse
from gi.repository import Caja, GObject, Gio
class BackgroundImageExtension(GObject.GObject, Caja.MenuProvider):
def __init__(self):
self.bgsettings = Gio.Settings.new(BACKGROUND_SCHEMA)
def _filepath(self, file):
try:
file = file.get_uri()
except:
pass
(scheme, netloc, path, parameters, query, fragment) = urlparse(file)
if scheme and unquote(scheme) != 'file':
return None
return unquote(path)
def menu_activate_cb(self, menu, file):
if file.is_gone():
return
self.bgsettings[BACKGROUND_KEY] = self._filepath(file)
def get_file_items(self, window, files):
if len(files) != 1:
return
file = files[0]
# We're only going to put ourselves on images context menus
if not file.get_mime_type() in SUPPORTED_FORMATS:
return
# Mate can only handle file:
# In the future we might want to copy the file locally
if file.get_uri_scheme() != 'file':
return
item = Caja.MenuItem(name='Caja::set_background_image',
label='Use as background image',
tip='Set the current image as a background image')
item.connect('activate', self.menu_activate_cb, file)
return item,
def get_background_items(self, window, file):
return []
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