terminal.py

# Open Terminal in chosen local directory from Caja; based on example from:
# <https://github.com/mate-desktop/python-caja/blob/master/examples/open-terminal.py>
# klg, Nov 2018
import os
from gi.repository import Caja, GObject, Gio

TERMINAL_SCHEMA = 'org.mate.applications-terminal'
TERMINAL_KEY = 'exec'


class OpenTerminalExtension(GObject.GObject, Caja.MenuProvider):
    def __init__(self):
        self.gsettings = Gio.Settings.new(TERMINAL_SCHEMA)
        pass

    def spawn_terminal_at(self, path):
        term = self.gsettings[TERMINAL_KEY]
        pid = os.fork()
        if pid == 0:
            os.chdir(path)
            os.execl('/bin/sh', 'sh', '-c', '%s &' % term)
            assert False
        os.waitpid(pid, 0)

    def check_make_menu(self, file):
        if not file.is_directory():
            return
        path = file.get_location().get_path()
        if not path:
            return
        item = Caja.MenuItem(
            name='CajaPython::openterminal',
            icon='Terminal',
            label='Open Terminal',
            tip='Open Terminal in %s' % file.get_name())
        item.connect('activate', self.menu_activate_cb, file)
        return item,

    def menu_activate_cb(self, menu, file):
        self.spawn_terminal_at(file.get_location().get_path())

    def get_file_items(self, window, files):
        if len(files) != 1:
            return
        return self.check_make_menu(files[0])

    def get_background_items(self, window, folder):
        return self.check_make_menu(folder)