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path: root/addons/readfile.py
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# Copyright (C) 2009, Tutorius.org
#
# 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

import os

from sugar.tutorius.actions import Action
from sugar.tutorius.properties import TFileProperty
from sugar.tutorius.services import ObjectStore

class ReadFile(Action):
    filename = TFileProperty(None)

    def __init__(self, filename=None):
        """
        Calls activity.read_file to restore a specified state to an activity
        like when restored from the journal.
        @param filename Path to the file to read
        """
        Action.__init__(self)

        if filename:
            self.filename=filename

    def do(self):
        """
        Perform the action, call read_file on the activity
        """
        if os.path.isfile(str(self.filename)):
            ObjectStore().activity.read_file(self.filename)

    def undo(self):
        """
        Not undoable
        """
        pass

__action__ = {
    "name" : "ReadFile",
    "display_name" : "Read File",
    "icon" : "message-bubble", #FIXME
    "class" : ReadFile,
    "mandatory_props" : ["filename"]
}