#!/usr/bin/python2.5

#

# Copyright 2008 the Melange authors.

#

# Licensed under the Apache License, Version 2.0 (the "License");

# you may not use this file except in compliance with the License.

# You may obtain a copy of the License at

#

#   http://www.apache.org/licenses/LICENSE-2.0

#

# Unless required by applicable law or agreed to in writing, software

# distributed under the License is distributed on an "AS IS" BASIS,

# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

# See the License for the specific language governing permissions and

# limitations under the License.

"""Custom widgets used for form fields.

"""

__authors__ = [

  '"Pawel Solyga" <pawel.solyga@gmail.com>',

  ]

import django.newforms as forms

from django.newforms.widgets import flatatt

from django.newforms.util import smart_unicode

from django.utils.html import escape

from django.utils import simplejson

from django.utils.safestring import mark_safe

class TinyMCE(forms.Textarea):

    """

    TinyMCE widget. requires you include tiny_mce_src.js in your template

    you can customize the mce_settings by overwriting instance mce_settings,

    or add extra options using update_settings

    """ 

    mce_settings = dict(

        mode = "exact",

        theme = "simple",

        theme_advanced_toolbar_location = "top",

        theme_advanced_toolbar_align = "center",

    )    

    def update_settings(self, custom):

        return_dict = self.mce_settings.copy()

        return_dict.update(custom)

        return return_dict

    def render(self, name, value, attrs=None):

        if value is None:

          value = ''

        value = smart_unicode(value)

        final_attrs = self.build_attrs(attrs, name=name)

        self.mce_settings['elements'] = "id_%s" % name

        mce_json = simplejson.JSONEncoder().encode(self.mce_settings)

        return mark_safe(u'<textarea%s>%s</textarea> \

                <script type="text/javascript">\

                tinyMCE.init(%s)</script>' % (flatatt(final_attrs), 

                                              escape(value), 

                                              mce_json))