# InputDialog.py    Own implementation of InputDialog
#
#This file is part of LearningWriting.
#
#LearningWriting 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 3 of the License, or
#(at your option) any later version.
#
#LearningWriting 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 LearningWriting.  If not, see <http://www.gnu.org/licenses/>.

import pygtk
pygtk.require('2.0')
import gtk

class InputDialog(gtk.MessageDialog):
    '''
    Creates an input dialog with
    => a label (for the prompt)
    => a text entry
    => ok_button and cancel_button
    '''


    def __init__(self, prompt, parent=None, text=""):
        '''
        Constructor(prompt, parent=None)
        prompt argument : the text of the dialog
        parent : the parent control
        text : the initial text in the TextEntry
        '''
        gtk.MessageDialog.__init__(self, 
                            parent, gtk.DIALOG_MODAL, gtk.MESSAGE_QUESTION,
                            gtk.BUTTONS_OK_CANCEL, prompt)
        self.__entry = gtk.Entry()
        self.__entry.set_text(text)
        self.vbox.pack_start(self.__entry, True, True, 0)
        self.connect("delete-event", lambda widget, event : self.__close() )
        
    def run(self):
        '''
        Run()
        Runs the dialog
        '''
        self.show_all()
        response = super(InputDialog,self).run()
        if response == gtk.RESPONSE_OK :
            text = self.__entry.get_text()
        else :
            text = None
        self.destroy()
        return text
    
    def __close(self):
        '''
        __close()
        Closes the dialog and returns None
        '''
        self.destroy()
        return None