web/htmlwidgets.py
author Sylvain Thénault <sylvain.thenault@logilab.fr>
Fri, 26 Feb 2010 13:24:47 +0100
branchstable
changeset 4721 8f63691ccb7f
parent 4719 aaed3f813ef8
child 4786 df2a12bfbab6
permissions -rw-r--r--
pylint style fixes
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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"""html widgets
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those are in cubicweb since we need to know available widgets at schema
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serialization time
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:organization: Logilab
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:copyright: 2001-2010 LOGILAB S.A. (Paris, FRANCE), license is LGPL v2.
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:contact: http://www.logilab.fr/ -- mailto:contact@logilab.fr
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:license: GNU Lesser General Public License, v2.1 - http://www.gnu.org/licenses
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"""
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from math import floor
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import random
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from logilab.mtconverter import xml_escape
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from cubicweb.utils import UStringIO
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from cubicweb.uilib import toggle_action, htmlescape
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from cubicweb.web import jsonize
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# XXX HTMLWidgets should have access to req (for datadir / static urls,
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#     i18n strings, etc.)
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class HTMLWidget(object):
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    def _initialize_stream(self, w=None):
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        if w:
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            self.w = w
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        else:
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            self._stream = UStringIO()
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            self.w = self._stream.write
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    def _render(self):
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        raise NotImplementedError
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    def render(self, w=None):
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        self._initialize_stream(w)
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        self._render()
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        if w is None:
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            return self._stream.getvalue()
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    def is_empty(self):
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        return False
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class BoxWidget(HTMLWidget):
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    def __init__(self, title, id, items=None, _class="boxFrame",
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                 islist=True, shadow=True, escape=True):
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        self.title = title
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        self.id = id
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        self.items = items or []
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        self._class = _class
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        self.islist = islist
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        self.shadow = shadow
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        self.escape = escape
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    def __len__(self):
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        return len(self.items)
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    def is_empty(self):
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        return len(self) == 0
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    def append(self, item):
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        self.items.append(item)
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    def extend(self, items):
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        self.items.extend(items)
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    title_class = 'boxTitle'
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    main_div_class = 'boxContent'
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    listing_class = 'boxListing'
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    def box_begin_content(self):
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        self.w(u'<div class="%s">\n' % self.main_div_class)
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        if self.islist:
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            self.w(u'<ul class="%s">' % self.listing_class)
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    def box_end_content(self):
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        if self.islist:
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            self.w(u'</ul>\n')
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        self.w(u'</div>\n')
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        if self.shadow:
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            self.w(u'<div class="shadow">&#160;</div>')
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    def _render(self):
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        if self.id:
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            self.w(u'<div class="%s" id="%s">' % (self._class, self.id))
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        else:
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            self.w(u'<div class="%s">' % self._class)
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        if self.title:
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            if self.escape:
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                title = '<span>%s</span>' % xml_escape(self.title)
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            else:
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                title = '<span>%s</span>' % self.title
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            self.w(u'<div class="%s">%s</div>' % (self.title_class, title))
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        if self.items:
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            self.box_begin_content()
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            for item in self.items:
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                item.render(self.w)
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            self.box_end_content()
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        self.w(u'</div>')
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class SideBoxWidget(BoxWidget):
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    """default CubicWeb's sidebox widget"""
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    title_class = u'sideBoxTitle'
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    main_div_class = u'sideBoxBody'
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    listing_class = ''
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    def __init__(self, title, id=None):
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        super(SideBoxWidget, self).__init__(title, id=id, _class='sideBox',
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                                            shadow=False)
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class MenuWidget(BoxWidget):
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    main_div_class = 'menuContent'
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    listing_class = 'menuListing'
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    def box_end_content(self):
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        if self.islist:
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            self.w(u'</ul>\n')
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        self.w(u'</div>\n')
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class RawBoxItem(HTMLWidget):
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    """a simpe box item displaying raw data"""
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    def __init__(self, label, liclass=None):
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        self.label = label
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        self.liclass = liclass
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    def _start_li(self):
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        if self.liclass is None:
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            return u'<li>'
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        else:
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            return u'<li class="%s">' % self.liclass
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0
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        return self.label
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0
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    def _render(self):
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        self.w(u'%s%s</li>' % (self._start_li(), self.label))
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class BoxMenu(RawBoxItem):
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    """a menu in a box"""
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    link_class = 'boxMenu'
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0
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    def __init__(self, label, items=None, isitem=True, liclass=None, ident=None,
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                 link_class=None):
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        super(BoxMenu, self).__init__(label, liclass)
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        self.items = items or []
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        self.isitem = isitem
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        self.ident = ident or u'boxmenu_%s' % label.replace(' ', '_').replace("'", '')
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        if link_class:
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            self.link_class = link_class
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0
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    def append(self, item):
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        self.items.append(item)
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    def _begin_menu(self, ident):
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        self.w(u'<ul id="%s" class="hidden">' % ident)
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    def _end_menu(self):
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        self.w(u'</ul>')
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0
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    def _render(self):
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        if self.isitem:
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            self.w(self._start_li())
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        ident = self.ident
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        self.w(u'<a href="%s" class="%s">%s</a>' % (
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            toggle_action(ident), self.link_class, self.label))
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        self._begin_menu(ident)
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        for item in self.items:
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            item.render(self.w)
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        self._end_menu()
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        if self.isitem:
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            self.w(u'</li>')
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class PopupBoxMenu(BoxMenu):
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    """like BoxMenu but uses div and specific css class
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    in order to behave like a popup menu
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    """
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    link_class = 'popupMenu'
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    def _begin_menu(self, ident):
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        self.w(u'<div class="popupWrapper"><div id="%s" class="hidden popup"><ul>' % ident)
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    def _end_menu(self):
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        self.w(u'</ul></div></div>')
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class BoxField(HTMLWidget):
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    """couples label / value meant to be displayed in a box"""
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    def __init__(self, label, value):
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        self.label = label
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        self.value = value
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0
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    def _render(self):
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        self.w(u'<li><div><span class="label">%s</span>&#160;'
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               u'<span class="value">%s</span></div></li>'
0
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               % (self.label, self.value))
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class BoxSeparator(HTMLWidget):
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    """a menu separator"""
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0
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    def _render(self):
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        self.w(u'</ul><hr class="boxSeparator"/><ul>')
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class BoxLink(HTMLWidget):
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    """a link in a box"""
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    def __init__(self, href, label, _class='', title='', ident='', escape=False):
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        self.href = href
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        if escape:
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            self.label = xml_escape(label)
0
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        else:
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            self.label = label
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        self._class = _class or ''
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        self.title = title
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        self.ident = ident
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    def _render(self):
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        link = u'<a href="%s" title="%s">%s</a>' % (
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            xml_escape(self.href), xml_escape(self.title), self.label)
0
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        if self.ident:
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            self.w(u'<li id="%s" class="%s">%s</li>\n' % (self.ident, self._class, link))
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        else:
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            self.w(u'<li class="%s">%s</li>\n' % (self._class, link))
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class BoxHtml(HTMLWidget):
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    """a form in a box"""
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    def __init__(self, rawhtml):
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        self.rawhtml = rawhtml
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    def _render(self):
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        self.w(self.rawhtml)
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class TableColumn(object):
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    def __init__(self, name, rset_sortcol):
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        """
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        :param name: the column's name
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        :param rset_sortcol: the model's column used to sort this column view
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        """
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        self.name = name
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        self.cellrenderers = []
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        self.rset_sortcol = rset_sortcol
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        self.cell_attrs = {}
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    def append_renderer(self, cellvid, colindex):
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        # XXX (adim) : why do we need colindex here ?
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        self.cellrenderers.append( (cellvid, colindex) )
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    def add_attr(self, attr, value):
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        self.cell_attrs[attr] = value
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class SimpleTableModel(object):
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    """
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    uses a list of lists as a storage backend
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    NB: the model expectes the cellvid passed to
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    TableColumn.append_renderer to be a callable accepting a single
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    argument and returning a unicode object
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    """
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    def __init__(self, rows):
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        self._rows = rows
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    def get_rows(self):
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        return self._rows
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    def render_cell(self, cellvid, rowindex, colindex, w):
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        value = self._rows[rowindex][colindex]
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        w(cellvid(value))
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    @htmlescape
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    @jsonize
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    def sortvalue(self, rowindex, colindex):
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        value =  self._rows[rowindex][colindex]
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        if value is None:
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            return u''
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        elif isinstance(value, int):
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            return u'%09d' % value
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        else:
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            return unicode(value)
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0
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class TableWidget(HTMLWidget):
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    """
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    Display data in a Table with sortable column.
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    When using remember to include the required css and js with:
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    self._cw.add_js('jquery.tablesorter.js')
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    self._cw.add_css(('cubicweb.tablesorter.css', 'cubicweb.tableview.css'))
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    """
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    highlight = "onmouseover=\"addElementClass(this, 'highlighted');\" " \
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                "onmouseout=\"removeElementClass(this, 'highlighted');\""
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0
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    def __init__(self, model):
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        self.model = model
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        self.columns = []
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    def append_column(self, column):
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        """
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        :type column: TableColumn
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        """
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        self.columns.append(column)
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    def _render(self):
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        self.w(u'<table class="listing">')
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        self.w(u'<thead>')
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        self.w(u'<tr class="header">')
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        for column in self.columns:
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            attrs = ('%s="%s"' % (name, value) for name, value in column.cell_attrs.iteritems())
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            self.w(u'<th %s>%s</th>' % (' '.join(attrs), column.name))
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        self.w(u'</tr>')
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        self.w(u'</thead><tbody>')
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        for rowindex in xrange(len(self.model.get_rows())):
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            klass = (rowindex%2==1) and 'odd' or 'even'
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            self.w(u'<tr class="%s" %s>' % (klass, self.highlight))
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            for column, sortvalue in self.itercols(rowindex):
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                attrs = dict(column.cell_attrs)
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                attrs["cubicweb:sortvalue"] = 'json:' + sortvalue
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                attrs = ('%s="%s"' % (name, value) for name, value in attrs.iteritems())
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                self.w(u'<td %s>' % (' '.join(attrs)))
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                for cellvid, colindex in column.cellrenderers:
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                    self.model.render_cell(cellvid, rowindex, colindex, w=self.w)
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                self.w(u'</td>')
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            self.w(u'</tr>')
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        self.w(u'</tbody>')
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        self.w(u'</table>')
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    def itercols(self, rowindex):
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        for column in self.columns:
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            yield column, self.model.sortvalue(rowindex, column.rset_sortcol)
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class ProgressBarWidget(HTMLWidget):
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    """display a progress bar widget"""
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    precision = 0.1
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    red_threshold = 1.1
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    orange_threshold = 1.05
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    yellow_threshold = 1
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0
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    def __init__(self, done, todo, total):
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        self.done = done
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        self.todo = todo
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        self.budget = total
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    @property
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    def overrun(self):
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        """overrun = done + todo - """
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        if self.done + self.todo > self.budget:
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            overrun = self.done + self.todo - self.budget
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        else:
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            overrun = 0
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        if overrun < self.precision:
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            overrun = 0
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        return overrun
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    @property
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    def overrun_percentage(self):
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        """pourcentage overrun = overrun / budget"""
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        if self.budget == 0:
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            return 0
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        else:
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            return self.overrun * 100. / self.budget
0
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    def _render(self):
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        done = self.done
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        todo = self.todo
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        budget = self.budget
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        if budget == 0:
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            pourcent = 100
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        else:
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            pourcent = done*100./budget
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        if pourcent > 100.1:
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            color = 'red'
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        elif todo+done > self.red_threshold*budget:
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            color = 'red'
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        elif todo+done > self.orange_threshold*budget:
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            color = 'orange'
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        elif todo+done > self.yellow_threshold*budget:
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            color = 'yellow'
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        else:
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            color = 'green'
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 4183
diff changeset
   388
        if pourcent < 0:
eac4b23a42ff [views] backport progressbar template from shingouz
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 4183
diff changeset
   389
            pourcent = 0
eac4b23a42ff [views] backport progressbar template from shingouz
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 4183
diff changeset
   390
eac4b23a42ff [views] backport progressbar template from shingouz
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 4183
diff changeset
   391
        if floor(done) == done or done>100:
eac4b23a42ff [views] backport progressbar template from shingouz
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 4183
diff changeset
   392
            done_str = '%i' % done
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   393
        else:
4211
eac4b23a42ff [views] backport progressbar template from shingouz
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 4183
diff changeset
   394
            done_str = '%.1f' % done
eac4b23a42ff [views] backport progressbar template from shingouz
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 4183
diff changeset
   395
        if floor(budget) == budget or budget>100:
eac4b23a42ff [views] backport progressbar template from shingouz
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 4183
diff changeset
   396
            budget_str = '%i' % budget
eac4b23a42ff [views] backport progressbar template from shingouz
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 4183
diff changeset
   397
        else:
eac4b23a42ff [views] backport progressbar template from shingouz
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 4183
diff changeset
   398
            budget_str = '%.1f' % budget
213
6842c3dee34b adding files (formely appearing in jpl) specific to cubicweb
Laure Bourgois <Laure.Bourgois@logilab.fr>
parents: 203
diff changeset
   399
4211
eac4b23a42ff [views] backport progressbar template from shingouz
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 4183
diff changeset
   400
        title = u'%s/%s = %i%%' % (done_str, budget_str, pourcent)
eac4b23a42ff [views] backport progressbar template from shingouz
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 4183
diff changeset
   401
        short_title = title
eac4b23a42ff [views] backport progressbar template from shingouz
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 4183
diff changeset
   402
        if self.overrun_percentage:
eac4b23a42ff [views] backport progressbar template from shingouz
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 4183
diff changeset
   403
            title += u' overrun +%sj (+%i%%)' % (self.overrun,
eac4b23a42ff [views] backport progressbar template from shingouz
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 4183
diff changeset
   404
                                                 self.overrun_percentage)
eac4b23a42ff [views] backport progressbar template from shingouz
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 4183
diff changeset
   405
            overrun = self.overrun
eac4b23a42ff [views] backport progressbar template from shingouz
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 4183
diff changeset
   406
            if floor(overrun) == overrun or overrun>100:
eac4b23a42ff [views] backport progressbar template from shingouz
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 4183
diff changeset
   407
                overrun_str = '%i' % overrun
eac4b23a42ff [views] backport progressbar template from shingouz
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 4183
diff changeset
   408
            else:
eac4b23a42ff [views] backport progressbar template from shingouz
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 4183
diff changeset
   409
                overrun_str = '%.1f' % overrun
eac4b23a42ff [views] backport progressbar template from shingouz
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 4183
diff changeset
   410
            short_title += u' +%s' % overrun_str
eac4b23a42ff [views] backport progressbar template from shingouz
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 4183
diff changeset
   411
        # write bars
eac4b23a42ff [views] backport progressbar template from shingouz
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 4183
diff changeset
   412
        maxi = max(done+todo, budget)
eac4b23a42ff [views] backport progressbar template from shingouz
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 4183
diff changeset
   413
        if maxi == 0:
eac4b23a42ff [views] backport progressbar template from shingouz
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 4183
diff changeset
   414
            maxi = 1
eac4b23a42ff [views] backport progressbar template from shingouz
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 4183
diff changeset
   415
eac4b23a42ff [views] backport progressbar template from shingouz
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 4183
diff changeset
   416
        cid = random.randint(0, 100000)
eac4b23a42ff [views] backport progressbar template from shingouz
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 4183
diff changeset
   417
        self.w(u'%s<br/>'
eac4b23a42ff [views] backport progressbar template from shingouz
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 4183
diff changeset
   418
               u'<canvas class="progressbar" id="canvas%i" width="100" height="10"></canvas>'
eac4b23a42ff [views] backport progressbar template from shingouz
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 4183
diff changeset
   419
               u'<script type="application/x-javascript">'
eac4b23a42ff [views] backport progressbar template from shingouz
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 4183
diff changeset
   420
               u'draw_progressbar("canvas%i", %i, %i, %i, "%s");</script>'
eac4b23a42ff [views] backport progressbar template from shingouz
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 4183
diff changeset
   421
               % (short_title.replace(' ','&nbsp;'), cid, cid,
eac4b23a42ff [views] backport progressbar template from shingouz
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 4183
diff changeset
   422
                  int(100.*done/maxi), int(100.*(done+todo)/maxi),
eac4b23a42ff [views] backport progressbar template from shingouz
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 4183
diff changeset
   423
                  int(100.*budget/maxi), color))