"""base classes to handle tabbed views

:organization: Logilab

:copyright: 2008 LOGILAB S.A. (Paris, FRANCE), all rights reserved.

:contact: http://www.logilab.fr/ -- mailto:contact@logilab.fr

"""

__docformat__ = "restructuredtext en"

from logilab.mtconverter import html_escape

from cubicweb import NoSelectableObject, role

from cubicweb.common.selectors import has_related_entities

from cubicweb.common.view import EntityView

class TabsMixIn(object):

    def active_tab(self, default):

        cookie = self.req.get_cookie()

        activetab = cookie.get('active_tab')

        if activetab is None:

            cookie['active_tab'] = default

            self.req.set_cookie(cookie, 'active_tab')

            return default

        return activetab.value

    def render_tabs(self, tabs, default, **kwargs):

        self.req.add_css('ui.tabs.css')

        self.req.add_js( ('ui.core.js', 'ui.tabs.js', 'cubicweb.tabs.js') )

        active_tab = self.active_tab(default)

        self.req.html_headers.add_post_inline_script(u"""

 jQuery(document).ready(function() {

   jQuery('#entity-tabs > ul').tabs( { selected: %(tabindex)s });

   set_tab('%(vid)s');

 });

 """ % {'tabindex' : tabs.index(active_tab),

        'vid'      : active_tab})

        # build the html structure

        w = self.w

        w(u'<div id="entity-tabs">')

        w(u'<ul>')

        tabviews = []

        for tab in tabs:

            try:

                tabview = self.vreg.select_view(tab, self.req, self.rset, **kwargs)

            except NoSelectableObject:

                continue

            tabviews.append(tabview)

            w(u'<li>')

            w(u'<a href="#as-%s">' % tab)

            w(u'<span onclick="set_tab(\'%s\')">' % tab)

            w(self.req._(tab))

            w(u'</span>')

            w(u'</a>')

            w(u'</li>')

        w(u'</ul>')

        w(u'</div>')

        # XXX ajaxify !

        for tabview in tabviews:

            w(u'<div id="as-%s">' % tabview.id)

            tabview.dispatch(w=self.w, **kwargs)

            w(u'</div>')    

class EntityRelationTab(EntityView):

    __selectors__ = EntityView.__selectors__ + (has_related_entities,)

    vid = 'list'

    def cell_call(self, row, col):

        rset = self.rset.get_entity(row, col).related(self.rtype, role(self))

        self.w(u'<div class="mainInfo">')

        self.wview(self.vid, rset, 'noresult')

        self.w(u'</div>')