1 ### -*- coding: utf-8 -*- ####################################################

     2 ##############################################################################

     3 #

     4 # Copyright (c) 2008-2010 Thierry Florac <tflorac AT ulthar.net>

     5 # All Rights Reserved.

     6 #

     7 # This software is subject to the provisions of the Zope Public License,

     8 # Version 2.1 (ZPL).  A copy of the ZPL should accompany this distribution.

     9 # THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED

    10 # WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED

    11 # WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS

    12 # FOR A PARTICULAR PURPOSE.

    13 #

    14 ##############################################################################

    15 

    16 __docformat__ = "restructuredtext"

    17 

    18 # import standard packages

    19 

    20 # import Zope3 interfaces

    21 from zope.tales.interfaces import ITALESFunctionNamespace

    22 

    23 # import local interfaces

    24 from interfaces import IHTMLTalesAPI

    25 

    26 # import Zope3 packages

    27 from zope.app import zapi

    28 from zope.app.renderer.plaintext import PlainTextToHTMLRenderer

    29 from zope.app.renderer.rest import ReStructuredTextToHTMLRenderer

    30 from zope.app.renderer.stx import StructuredTextToHTMLRenderer

    31 from zope.component import createObject

    32 from zope.interface import implements

    33 

    34 # import local packages

    35 from ztfy.utils.html import htmlToText

    36 

    37 

    38 class HTMLTalesAdapter(object):

    39 

    40     implements(IHTMLTalesAPI, ITALESFunctionNamespace)

    41 

    42     def __init__(self, context):

    43         self.context = context

    44 

    45     def setEngine(self, engine):

    46         self.request = engine.vars['request']

    47 

    48     def totext(self):

    49         if not self.context:

    50             return u''

    51         return htmlToText(self.context)

    52 

    53     def text(self):

    54         if not self.context:

    55             return u''

    56         formatter = createObject('zope.source.plaintext', self.context)

    57         renderer = PlainTextToHTMLRenderer(formatter, self.request)

    58         return renderer.render()

    59 

    60     def stx(self):

    61         if not self.context:

    62             return u''

    63         formatter = createObject('zope.source.stx', self.context)

    64         renderer = StructuredTextToHTMLRenderer(formatter, self.request)

    65         return renderer.render()

    66 

    67     def rest(self):

    68         if not self.context:

    69             return u''

    70         formatter = createObject('zope.source.rest', self.context)

    71         renderer = ReStructuredTextToHTMLRenderer(formatter, self.request)

    72         return renderer.render()