#!/usr/bin/python
# -*- coding: utf-8 -*-

"""
Libervia: a Salut à Toi frontend
Copyright (C) 2011, 2012, 2013 Jérôme Poisson <goffi@goffi.org>

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published by
the Free Software Foundation, either version 3 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 Affero General Public License for more details.

You should have received a copy of the GNU Affero General Public License
along with this program.  If not, see <http://www.gnu.org/licenses/>.
"""

from pyjamas.ui.DragWidget import DragWidget

def html_sanitize(html):
    """Naive sanitization of HTML"""
    return html.replace('<','&lt;').replace('>','&gt;')

class DragLabel(DragWidget):

    def __init__(self, text, _type):
        DragWidget.__init__(self)
        self._text = text
        self._type = _type
    
    def onDragStart(self, event):
        dt = event.dataTransfer
        dt.setData('text/plain', "%s\n%s" % (self._text, self._type))
        dt.setDragImage(self.getElement(), 15, 15)

class LiberviaDragWidget(DragLabel):
    """ A DragLabel which keep the widget being dragged as class value """
    current = None # widget currently dragged

    def __init__(self, text, _type, widget):
        DragLabel.__init__(self, text, _type)
        self.widget = widget

    def onDragStart(self, event):
        LiberviaDragWidget.current = self.widget
        DragLabel.onDragStart(self, event)

    def onDragEnd(self, event):
        LiberviaDragWidget.current = None