diff -r 000000000000 -r b97547f5f1fa web/views/basecomponents.py
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/web/views/basecomponents.py	Wed Nov 05 15:52:50 2008 +0100
@@ -0,0 +1,236 @@
+"""Bases HTML components:
+
+* the rql input form
+* the logged user link
+* the workflow history section for workflowable objects
+
+:organization: Logilab
+:copyright: 2001-2008 LOGILAB S.A. (Paris, FRANCE), all rights reserved.
+:contact: http://www.logilab.fr/ -- mailto:contact@logilab.fr
+"""
+__docformat__ = "restructuredtext en"
+
+from rql import parse
+
+from cubicweb import Unauthorized
+from cubicweb.common.uilib import html_escape, toggle_action
+from cubicweb.common.selectors import yes_selector
+from cubicweb.schema import display_name
+from cubicweb.common.selectors import (chainfirst, multitype_selector,
+                                    req_form_params_selector)
+
+from cubicweb.web.htmlwidgets import MenuWidget, PopupBoxMenu, BoxSeparator, BoxLink
+from cubicweb.web.component import (SingletonVComponent, EntityVComponent, 
+                                 RelatedObjectsVComponent)
+
+_ = unicode
+
+
+class RQLInputForm(SingletonVComponent):
+    """build the rql input form, usually displayed in the header"""
+    id = 'rqlinput'
+    visible = False
+       
+    def call(self, view=None):
+        if hasattr(view, 'filter_box_context_info'):
+            rset = view.filter_box_context_info()[0]
+        else:
+            rset = self.rset
+        # display multilines query as one line
+        rql = rset is not None and rset.printable_rql(encoded=False) or self.req.form.get('rql', '')
+        rql = rql.replace(u"\n", u" ")
+        req = self.req
+        self.w(u'''<div id="rqlinput" class="%s">
+          <form action="%s">
+<fieldset>
+<input type="text" id="rql" name="rql" value="%s"  title="%s" tabindex="%s" accesskey="q" class="searchField" />
+<input type="submit" value="%s" class="searchButton" tabindex="%s" />
+</fieldset>
+''' % (not self.propval('visible') and 'hidden' or '', 
+       self.build_url('view'), html_escape(rql), req._('full text or RQL query'), req.next_tabindex(),
+       req._('search'), req.next_tabindex()))
+        if self.req.search_state[0] != 'normal':
+            self.w(u'<input type="hidden" name="__mode" value="%s"/>'
+                   % ':'.join(req.search_state[1]))
+        self.w(u'</form></div>')
+
+
+class ApplLogo(SingletonVComponent):
+    """build the application logo, usually displayed in the header"""
+    id = 'logo'
+    site_wide = True # don't want user to hide this component using an eproperty
+    def call(self):
+        self.w(u'<a href="%s"><img class="logo" src="%s" alt="logo"/></a>'
+               % (self.req.base_url(), self.req.external_resource('LOGO')))
+
+
+class ApplHelp(SingletonVComponent):
+    """build the help button, usually displayed in the header"""
+    id = 'help'
+    def call(self):
+        self.w(u'<a href="%s" class="help" title="%s">&nbsp;</a>'
+               % (self.build_url(_restpath='doc/main'),
+                  self.req._(u'help'),))
+
+
+class UserLink(SingletonVComponent):
+    """if the user is the anonymous user, build a link to login
+    else a link to the connected user object with a loggout link
+    """
+    id = 'loggeduserlink'
+    site_wide = True # don't want user to hide this component using an eproperty
+
+    def call(self):
+        if not self.req.cnx.anonymous_connection:
+            # display useractions and siteactions
+            actions = self.vreg.possible_actions(self.req, self.rset)
+            box = MenuWidget('', 'userActionsBox', _class='', islist=False)
+            menu = PopupBoxMenu(self.req.user.login, isitem=False)
+            box.append(menu)
+            for action in actions.get('useractions', ()):
+                menu.append(BoxLink(action.url(), self.req._(action.title),
+                                    action.html_class()))
+            if actions.get('useractions') and actions.get('siteactions'):
+                menu.append(BoxSeparator())
+            for action in actions.get('siteactions', ()):
+                menu.append(BoxLink(action.url(), self.req._(action.title),
+                                    action.html_class()))
+            box.render(w=self.w)
+        else:
+            self.anon_user_link()
+            
+    def anon_user_link(self):
+        if self.config['auth-mode'] == 'cookie':
+            self.w(self.req._('anonymous'))
+            self.w(u'''&nbsp;[<a class="logout" href="javascript:toggleVisibility('popupLoginBox'); document.login_form.__login.focus() ">%s</a>]'''
+                   % (self.req._('i18n_login_popup')))
+        else:
+            self.w(self.req._('anonymous'))
+            self.w(u'&nbsp;[<a class="logout" href="%s">%s</a>]'
+                   % (self.build_url('login'), self.req._('login')))
+
+
+class ApplicationMessage(SingletonVComponent):
+    """display application's messages given using the __message parameter
+    into a special div section
+    """
+    __selectors__ = yes_selector,
+    id = 'applmessages'
+    site_wide = True # don't want user to hide this component using an eproperty
+
+    def call(self):
+        msgs = [msg for msg in (self.req.get_shared_data('sources_error', pop=True),
+                                self.req.message) if msg]
+        self.w(u'<div id="appMsg" onclick="%s" class="%s">\n' %
+               (toggle_action('appMsg'), (msgs and ' ' or 'hidden')))
+        for msg in msgs:
+            self.w(u'<div class="message" id="%s">%s</div>' % (
+                self.div_id(), msg))
+        self.w(u'</div>')
+
+
+class WFHistoryVComponent(EntityVComponent):
+    """display the workflow history for entities supporting it"""
+    id = 'wfhistory'
+    accepts = ('Any',)
+    context = 'navcontentbottom'
+    rtype = 'wf_info_for'
+    target = 'subject'
+    title = _('Workflow history')
+
+    def call(self, view=None):
+        _ = self.req._
+        eid = self.rset[0][0]
+        sel = 'Any FS,TS,WF,D'
+        rql = ' ORDERBY D DESC WHERE WF wf_info_for X,'\
+              'WF from_state FS, WF to_state TS, WF comment C,'\
+              'WF creation_date D'
+        if self.vreg.schema.eschema('EUser').has_perm(self.req, 'read'):
+            sel += ',U,C'
+            rql += ', WF owned_by U?'
+            displaycols = range(5)
+            headers = (_('from_state'), _('to_state'), _('comment'), _('date'),
+                       _('EUser'))            
+        else:
+            sel += ',C'
+            displaycols = range(4)
+            headers = (_('from_state'), _('to_state'), _('comment'), _('date'))
+        rql = '%s %s, X eid %%(x)s' % (sel, rql)
+        try:
+            rset = self.req.execute(rql, {'x': eid}, 'x')
+        except Unauthorized:
+            return
+        if rset:
+            self.wview('table', rset, title=_(self.title), displayactions=False,
+                       displaycols=displaycols, headers=headers)
+
+
+class ApplicationName(SingletonVComponent):
+    """display the application name"""
+    id = 'appliname'
+
+    def call(self):
+        self.w(u'<span id="appliName"><a href="%s">%s</a></span>' % (self.req.base_url(),
+                                                         self.req.property_value('ui.site-title')))
+        
+
+class SeeAlsoVComponent(RelatedObjectsVComponent):
+    """display any entity's see also"""
+    id = 'seealso'
+    context = 'navcontentbottom'
+    rtype = 'see_also'
+    target = 'object'
+    order = 40
+    # register msg not generated since no entity use see_also in cubicweb itself
+    title = _('contentnavigation_seealso')
+    help = _('contentnavigation_seealso_description')
+
+    
+class EtypeRestrictionComponent(SingletonVComponent):
+    """displays the list of entity types contained in the resultset
+    to be able to filter accordingly.
+    """
+    id = 'etypenavigation'
+    __select__ = classmethod(chainfirst(multitype_selector, req_form_params_selector))
+    form_params = ('__restrtype', '__restrtypes', '__restrrql')
+    visible = False # disabled by default
+    
+    def call(self):
+        _ = self.req._
+        self.w(u'<div id="etyperestriction">')
+        restrtype = self.req.form.get('__restrtype')
+        restrtypes = self.req.form.get('__restrtypes', '').split(',')
+        restrrql = self.req.form.get('__restrrql')
+        if not restrrql:
+            rqlst = self.rset.syntax_tree()
+            restrrql = rqlst.as_string(self.req.encoding, self.rset.args)
+            restrtypes = self.rset.column_types(0)
+        else:
+            rqlst = parse(restrrql)
+        html = []
+        on_etype = False
+        etypes = sorted((display_name(self.req, etype).capitalize(), etype)
+                        for etype in restrtypes)
+        for elabel, etype in etypes:
+            if etype == restrtype:
+                html.append(u'<span class="selected">%s</span>' % elabel)
+                on_etype = True
+            else:
+                rqlst.save_state()
+                for select in rqlst.children:
+                    select.add_type_restriction(select.selection[0], etype)
+                newrql = rqlst.as_string(self.req.encoding, self.rset.args)
+                url = self.build_url(rql=newrql, __restrrql=restrrql,
+                                     __restrtype=etype, __restrtypes=','.join(restrtypes))
+                html.append(u'<span><a href="%s">%s</a></span>' % (
+                        html_escape(url), elabel))
+                rqlst.recover()
+        if on_etype:
+            url = self.build_url(rql=restrrql)
+            html.insert(0, u'<span><a href="%s">%s</a></span>' % (
+                    url, _('Any')))
+        else:
+            html.insert(0, u'<span class="selected">%s</span>' % _('Any'))
+        self.w(u'&nbsp;|&nbsp;'.join(html))
+        self.w(u'</div>')
+