# HG changeset patch
# User Thierry Florac <thierry.florac@onf.fr>
# Date 1522760037 -7200
# Node ID 174894a2293dda3fb905d1cf38a8062a16fd892b
# Parent  e60b9a60b5460e19632973ce84081e95229b248b
Added alerts

diff -r e60b9a60b546 -r 174894a2293d src/pyams_content/features/alert/__init__.py
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/pyams_content/features/alert/__init__.py	Tue Apr 03 14:53:57 2018 +0200
@@ -0,0 +1,72 @@
+#
+# Copyright (c) 2008-2015 Thierry Florac <tflorac AT ulthar.net>
+# All Rights Reserved.
+#
+# This software is subject to the provisions of the Zope Public License,
+# Version 2.1 (ZPL).  A copy of the ZPL should accompany this distribution.
+# THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED
+# WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+# WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS
+# FOR A PARTICULAR PURPOSE.
+#
+
+__docformat__ = 'restructuredtext'
+
+
+# import standard library
+from persistent import Persistent
+
+# import interfaces
+from pyams_content.features.alert.interfaces import IAlertItem, IAlertTarget
+from pyams_content.interfaces import MANAGE_SITE_ROOT_PERMISSION
+from pyams_content.reference.pictograms import IPictogramTable
+from pyams_form.interfaces.form import IFormContextPermissionChecker
+
+# import packages
+from pyams_sequence.utility import get_reference_target
+from pyams_utils.adapter import adapter_config, ContextAdapter
+from pyams_utils.registry import query_utility
+from pyams_utils.zodb import volatile_property
+from zope.container.contained import Contained
+from zope.interface import implementer
+from zope.schema.fieldproperty import FieldProperty
+
+
+@implementer(IAlertItem)
+class AlertItem(Persistent, Contained):
+    """Alert item persistent class"""
+
+    visible = FieldProperty(IAlertItem['visible'])
+    gravity = FieldProperty(IAlertItem['gravity'])
+    header = FieldProperty(IAlertItem['header'])
+    message = FieldProperty(IAlertItem['message'])
+    reference = FieldProperty(IAlertItem['reference'])
+    _pictogram_name = FieldProperty(IAlertItem['pictogram_name'])
+    start_date = FieldProperty(IAlertItem['start_date'])
+    end_date = FieldProperty(IAlertItem['end_date'])
+    maximum_interval = FieldProperty(IAlertItem['maximum_interval'])
+
+    @property
+    def pictogram_name(self):
+        return self._pictogram_name
+
+    @pictogram_name.setter
+    def pictogram_name(self, value):
+        if value != self._pictogram_name:
+            self._pictogram_name = value
+            del self.pictogram
+
+    @volatile_property
+    def pictogram(self):
+        table = query_utility(IPictogramTable)
+        return table.get(self.pictogram_name)
+
+    def get_target(self):
+        return get_reference_target(self.reference)
+
+
+@adapter_config(context=IAlertItem, provides=IFormContextPermissionChecker)
+class AlertitemPermissionChecker(ContextAdapter):
+    """Alert item permission checker"""
+
+    edit_permission = MANAGE_SITE_ROOT_PERMISSION
diff -r e60b9a60b546 -r 174894a2293d src/pyams_content/features/alert/container.py
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/pyams_content/features/alert/container.py	Tue Apr 03 14:53:57 2018 +0200
@@ -0,0 +1,80 @@
+#
+# Copyright (c) 2008-2015 Thierry Florac <tflorac AT ulthar.net>
+# All Rights Reserved.
+#
+# This software is subject to the provisions of the Zope Public License,
+# Version 2.1 (ZPL).  A copy of the ZPL should accompany this distribution.
+# THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED
+# WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+# WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS
+# FOR A PARTICULAR PURPOSE.
+#
+
+__docformat__ = 'restructuredtext'
+
+
+# import standard library
+
+# import interfaces
+from pyams_content.features.alert.interfaces import IAlertContainer, IAlertItem, IAlertTarget, ALERT_CONTAINER_KEY
+from zope.annotation.interfaces import IAnnotations
+from zope.location.interfaces import ISublocations
+from zope.traversing.interfaces import ITraversable
+
+# import packages
+from pyams_catalog.utils import index_object
+from pyams_utils.adapter import adapter_config, ContextAdapter
+from pyams_utils.registry import get_current_registry
+from zope.container.ordered import OrderedContainer
+from zope.interface import implementer
+from zope.lifecycleevent import ObjectCreatedEvent
+from zope.location import locate
+
+
+@implementer(IAlertContainer)
+class AlertContainer(OrderedContainer):
+    """Alert container persistent class"""
+
+    last_id = 1
+
+    def append(self, value, notify=True):
+        key = str(self.last_id)
+        if not notify:
+            # pre-locate alert item to avoid multiple notifications
+            locate(value, self, key)
+        self[key] = value
+        self.last_id += 1
+        if not notify:
+            # make sure that alert item is correctly indexed
+            index_object(value)
+
+    def get_visible_items(self):
+        return filter(lambda x: IAlertItem(x).visible, self.values())
+
+
+@adapter_config(context=IAlertTarget, provides=IAlertContainer)
+def alert_container_factory(target):
+    """Alert container factory"""
+    annotations = IAnnotations(target)
+    container = annotations.get(ALERT_CONTAINER_KEY)
+    if container is None:
+        container = annotations[ALERT_CONTAINER_KEY] = AlertContainer()
+        get_current_registry().notify(ObjectCreatedEvent(container))
+        locate(container, target, '++alert++')
+    return container
+
+
+@adapter_config(name='alert', context=IAlertTarget, provides=ITraversable)
+class AlertContainerNamespace(ContextAdapter):
+    """Alert container ++alert++ namespace"""
+
+    def traverse(self, name, furtherpath=None):
+        return IAlertContainer(self.context)
+
+
+@adapter_config(name='alerts', context=IAlertTarget, provides=ISublocations)
+class AlertContainerSublocations(ContextAdapter):
+    """Alert container sub-locations adapter"""
+
+    def sublocations(self):
+        return IAlertContainer(self.context).values()
diff -r e60b9a60b546 -r 174894a2293d src/pyams_content/features/alert/interfaces.py
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/pyams_content/features/alert/interfaces.py	Tue Apr 03 14:53:57 2018 +0200
@@ -0,0 +1,118 @@
+#
+# Copyright (c) 2008-2015 Thierry Florac <tflorac AT ulthar.net>
+# All Rights Reserved.
+#
+# This software is subject to the provisions of the Zope Public License,
+# Version 2.1 (ZPL).  A copy of the ZPL should accompany this distribution.
+# THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED
+# WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+# WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS
+# FOR A PARTICULAR PURPOSE.
+#
+
+__docformat__ = 'restructuredtext'
+
+
+# import standard library
+from collections import OrderedDict
+
+# import interfaces
+from pyams_content.interfaces.container import IOrderedContainer
+from pyams_content.reference.pictograms.interfaces import PICTOGRAM_VOCABULARY
+from pyams_sequence.interfaces import IInternalReference
+from zope.annotation import IAttributeAnnotatable
+
+# import packages
+from pyams_i18n.schema import I18nTextLineField
+from pyams_sequence.schema import InternalReference
+from zope.container.constraints import containers, contains
+from zope.interface import Interface, Attribute
+from zope.schema import Bool, Choice, Datetime, Int
+from zope.schema.vocabulary import SimpleVocabulary, SimpleTerm
+
+from pyams_content import _
+
+
+ALERT_CONTAINER_KEY = 'pyams_content.alerts'
+
+
+ALERT_GRAVITY_NAMES = OrderedDict((
+    ('success', _("Success")),
+    ('info', _("Information")),
+    ('warning', _("Warning")),
+    ('danger', _("Danger"))
+))
+
+ALERT_GRAVITY_VOCABULARY = SimpleVocabulary([SimpleTerm(v, title=t) for v, t in ALERT_GRAVITY_NAMES.items()])
+
+
+class IAlertItem(IAttributeAnnotatable, IInternalReference):
+    """Alert item interface"""
+
+    containers('.IAlertContainer')
+
+    visible = Bool(title=_("Visible?"),
+                   description=_("Is this alert visible in front-office?"),
+                   required=True,
+                   default=False)
+
+    gravity = Choice(title=_("Alert gravity"),
+                     description=_("Alert gravity will affect rendered alert style"),
+                     required=True,
+                     default='info',
+                     vocabulary=ALERT_GRAVITY_VOCABULARY)
+
+    header = I18nTextLineField(title=_("Header"),
+                               description=_("Short alert header"),
+                               required=False)
+
+    message = I18nTextLineField(title=_("Message"),
+                                description=_("Alert message"),
+                                required=True)
+
+    reference = InternalReference(title=_("Internal reference"),
+                                  description=_("Internal link target reference. You can search a reference using "
+                                                "'+' followed by internal number, of by entering text matching "
+                                                "content title."),
+                                  required=False)
+
+    pictogram_name = Choice(title=_("Pictogram"),
+                            description=_("Name of the pictogram to select"),
+                            required=False,
+                            vocabulary=PICTOGRAM_VOCABULARY)
+
+    pictogram = Attribute("Selected pictogram object")
+
+    start_date = Datetime(title=_("Display start date"),
+                          description=_("First date at which alert should be displayed"),
+                          required=False)
+
+    end_date = Datetime(title=_("Display end date"),
+                        description=_("Last date at which alert should be displayed"),
+                        required=False)
+
+    maximum_interval = Int(title=_("Maximum interval"),
+                           description=_("Maximum interval between alert displays on a given device, "
+                                         "given in hours; set to 0 to always display the alert"),
+                           required=True,
+                           min=0,
+                           default=48)
+
+    def get_target(self):
+        """Get internal reference target"""
+
+
+class IAlertContainer(IOrderedContainer):
+    """Alert container interface"""
+
+    contains(IAlertItem)
+
+    def append(self, value, notify=True):
+        """Append given value to container"""
+
+    def get_visible_items(self):
+        """Get list of visible items"""
+
+
+class IAlertTarget(Interface):
+    """Alert container target interface"""
diff -r e60b9a60b546 -r 174894a2293d src/pyams_content/features/alert/zmi/__init__.py
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/pyams_content/features/alert/zmi/__init__.py	Tue Apr 03 14:53:57 2018 +0200
@@ -0,0 +1,111 @@
+#
+# Copyright (c) 2008-2015 Thierry Florac <tflorac AT ulthar.net>
+# All Rights Reserved.
+#
+# This software is subject to the provisions of the Zope Public License,
+# Version 2.1 (ZPL).  A copy of the ZPL should accompany this distribution.
+# THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED
+# WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+# WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS
+# FOR A PARTICULAR PURPOSE.
+#
+
+__docformat__ = 'restructuredtext'
+
+
+# import standard library
+
+# import interfaces
+from pyams_content.features.alert.interfaces import IAlertTarget, IAlertItem, IAlertContainer
+from pyams_content.interfaces import MANAGE_SITE_ROOT_PERMISSION
+from pyams_skin.interfaces.viewlet import IWidgetTitleViewletManager
+from pyams_skin.layer import IPyAMSLayer
+
+# import packages
+from pyams_content.features.alert import AlertItem
+from pyams_content.features.alert.zmi.container import AlertContainerView, AlertContainerTable
+from pyams_form.form import AJAXAddForm, AJAXEditForm
+from pyams_pagelet.pagelet import pagelet_config
+from pyams_skin.viewlet.toolbar import ToolbarAction
+from pyams_utils.traversing import get_parent
+from pyams_utils.url import absolute_url
+from pyams_viewlet.viewlet import viewlet_config
+from pyams_zmi.form import AdminDialogAddForm, AdminDialogEditForm
+from pyramid.view import view_config
+from z3c.form import field
+
+from pyams_content import _
+
+
+@viewlet_config(name='add-alert.action', context=IAlertTarget, layer=IPyAMSLayer, view=AlertContainerView,
+                manager=IWidgetTitleViewletManager, permission=MANAGE_SITE_ROOT_PERMISSION, weight=1)
+class AlertItemAddAction(ToolbarAction):
+    """Alert item add action"""
+
+    label = _("Add alert")
+    label_css_class = 'fa fa-fw fa-plus'
+    url = 'add-alert.html'
+    modal_target = True
+
+
+@pagelet_config(name='add-alert.html', context=IAlertTarget, layer=IPyAMSLayer, permission=MANAGE_SITE_ROOT_PERMISSION)
+class AlertItemAddForm(AdminDialogAddForm):
+    """Alert item add form"""
+
+    legend = _("Add new alert")
+    icon_css_class = 'fa fa-fw fa-exclamation-triangle'
+
+    fields = field.Fields(IAlertItem).omit('__parent__', '__name__', 'visible')
+    ajax_handler = 'add-alert.json'
+    edit_permission = MANAGE_SITE_ROOT_PERMISSION
+
+    def create(self, data):
+        return AlertItem()
+
+    def add(self, object):
+        IAlertContainer(self.context).append(object)
+
+    def nextURL(self):
+        return absolute_url(self.context, self.request, 'alerts.html')
+
+
+@view_config(name='add-alert.json', context=IAlertTarget, request_type=IPyAMSLayer,
+             permission=MANAGE_SITE_ROOT_PERMISSION, renderer='json', xhr=True)
+class AlertItemAJAXAddForm(AJAXAddForm, AlertItemAddForm):
+    """Alert item add form, JSON renderer"""
+
+
+@pagelet_config(name='properties.html', context=IAlertItem, layer=IPyAMSLayer, permission=MANAGE_SITE_ROOT_PERMISSION)
+class AlertItemPropertiesEditForm(AdminDialogEditForm):
+    """Alert item properties edit form"""
+
+    legend = _("Edit alert properties")
+    icon_css_class = 'fa fa-fw fa-exclamation-triangle'
+
+    fields = field.Fields(IAlertItem).omit('__parent__', '__name__', 'visible')
+    ajax_handler = 'properties.json'
+    edit_permission = MANAGE_SITE_ROOT_PERMISSION
+
+
+@view_config(name='properties.json', context=IAlertItem, request_type=IPyAMSLayer,
+             permission=MANAGE_SITE_ROOT_PERMISSION, renderer='json', xhr=True)
+class AlertItemPropertiesAJAXEditForm(AJAXEditForm, AlertItemPropertiesEditForm):
+    """Alert item properties edit form, JSON renderer"""
+
+    def get_ajax_output(self, changes):
+        output = super(AlertItemPropertiesAJAXEditForm, self).get_ajax_output(changes)
+        updated = changes.get(IAlertItem, ())
+        if updated:
+            target = get_parent(self.context, IAlertTarget)
+            table = AlertContainerTable(target, self.request)
+            table.update()
+            row = table.setUpRow(self.context)
+            output.setdefault('events', []).append({
+                'event': 'myams.refresh',
+                'options': {
+                    'handler': 'MyAMS.skin.refreshRow',
+                    'object_id': 'alert_{0}'.format(self.context.__name__),
+                    'row': table.renderRow(row)
+                }
+            })
+        return output
diff -r e60b9a60b546 -r 174894a2293d src/pyams_content/features/alert/zmi/container.py
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/pyams_content/features/alert/zmi/container.py	Tue Apr 03 14:53:57 2018 +0200
@@ -0,0 +1,242 @@
+#
+# Copyright (c) 2008-2015 Thierry Florac <tflorac AT ulthar.net>
+# All Rights Reserved.
+#
+# This software is subject to the provisions of the Zope Public License,
+# Version 2.1 (ZPL).  A copy of the ZPL should accompany this distribution.
+# THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED
+# WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+# WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS
+# FOR A PARTICULAR PURPOSE.
+#
+
+__docformat__ = 'restructuredtext'
+
+
+# import standard library
+import json
+
+# import interfaces
+from pyams_content.features.alert.interfaces import IAlertTarget, IAlertContainer
+from pyams_content.interfaces import MANAGE_SITE_ROOT_PERMISSION
+from pyams_i18n.interfaces import II18n
+from pyams_skin.interfaces import IPageHeader
+from pyams_skin.layer import IPyAMSLayer
+from pyams_zmi.interfaces.menu import ISiteManagementMenu
+from pyams_zmi.layer import IAdminLayer
+from z3c.table.interfaces import IValues, IColumn
+
+# import packages
+from pyams_content.skin import pyams_content
+from pyams_i18n.column import I18nAttrColumn
+from pyams_pagelet.pagelet import pagelet_config
+from pyams_skin.page import DefaultPageHeaderAdapter
+from pyams_skin.table import BaseTable, SorterColumn, JsActionColumn, I18nColumn, TrashColumn
+from pyams_skin.viewlet.menu import MenuItem
+from pyams_utils.adapter import adapter_config, ContextRequestViewAdapter
+from pyams_utils.fanstatic import get_resource_path
+from pyams_utils.text import get_text_start
+from pyams_utils.url import absolute_url
+from pyams_viewlet.viewlet import viewlet_config
+from pyams_zmi.view import ContainerAdminView
+from pyramid.decorator import reify
+from pyramid.exceptions import NotFound
+from pyramid.view import view_config
+from z3c.table.column import GetAttrColumn
+
+from pyams_content import _
+
+
+@viewlet_config(name='alerts.menu', context=IAlertTarget, layer=IPyAMSLayer, manager=ISiteManagementMenu,
+                permission=MANAGE_SITE_ROOT_PERMISSION, weight=4)
+class AlertsMenu(MenuItem):
+    """Alerts menu"""
+
+    label = _("Alerts")
+    icon_class = 'fa-exclamation-triangle'
+    url = '#alerts.html'
+
+
+class AlertContainerTable(BaseTable):
+    """Alerts container table"""
+
+    id = 'alerts_table'
+    hide_header = True
+    sortOn = None
+
+    cssClasses = {'table': 'table table-bordered table-striped table-hover table-tight table-dnd'}
+
+    @property
+    def data_attributes(self):
+        attributes = super(AlertContainerTable, self).data_attributes
+        attributes.setdefault('table', {}).update({
+            'id': self.id,
+            'data-ams-plugins': 'pyams_content',
+            'data-ams-plugin-pyams_content-src': get_resource_path(pyams_content),
+            'data-ams-location': absolute_url(IAlertContainer(self.context), self.request),
+            'data-ams-tablednd-drag-handle': 'td.sorter',
+            'data-ams-tablednd-drop-target': 'set-alerts-order.json'
+        })
+        attributes.setdefault('tr', {}).update({
+            'id': lambda x, col: 'alert_{0}'.format(x.__name__),
+            'data-ams-delete-target': 'delete-alert.json'
+        })
+        return attributes
+
+    @reify
+    def values(self):
+        return list(super(AlertContainerTable, self).values)
+
+    def render(self):
+        if not self.values:
+            translate = self.request.localizer.translate
+            return translate(_("No currently defined alert."))
+        return super(AlertContainerTable, self).render()
+
+
+@adapter_config(context=(IAlertTarget, IPyAMSLayer, AlertContainerTable), provides=IValues)
+class AlertContainerValues(ContextRequestViewAdapter):
+    """Alerts container values"""
+
+    @property
+    def values(self):
+        return IAlertContainer(self.context).values()
+
+
+@adapter_config(name='sorter', context=(IAlertTarget, IPyAMSLayer, AlertContainerTable), provides=IColumn)
+class AlertContainerSorterColumn(SorterColumn):
+    """Alert container sorter column"""
+
+
+@view_config(name='set-alerts-order.json', context=IAlertContainer, request_type=IPyAMSLayer,
+             permission=MANAGE_SITE_ROOT_PERMISSION, renderer='json', xhr=True)
+def set_alerts_order(request):
+    """Update alerts order"""
+    order = list(map(str, json.loads(request.params.get('names'))))
+    request.context.updateOrder(order)
+    return {'status': 'success'}
+
+
+@adapter_config(name='show-hide', context=(IAlertTarget, IPyAMSLayer, AlertContainerTable), provides=IColumn)
+class AlertContainerShowHideColumn(JsActionColumn):
+    """Alert container visibility switcher column"""
+
+    cssClasses = {'th': 'action',
+                  'td': 'action switcher'}
+
+    icon_class = 'fa fa-fw fa-eye'
+    icon_hint = _("Switch alert visibility")
+
+    url = 'PyAMS_content.alerts.switchVisibility'
+
+    weight = 5
+
+    def get_icon_class(self, item):
+        if item.visible:
+            return self.icon_class
+        else:
+            return 'fa fa-fw fa-eye-slash text-danger'
+
+
+@view_config(name='set-alert-visibility.json', context=IAlertContainer, request_type=IPyAMSLayer,
+             permission=MANAGE_SITE_ROOT_PERMISSION, renderer='json', xhr=True)
+def set_alert_visibility(request):
+    """Set alert visibility"""
+    container = IAlertContainer(request.context)
+    alert = container.get(str(request.params.get('object_name')))
+    if alert is None:
+        raise NotFound()
+    alert.visible = not alert.visible
+    return {'visible': alert.visible}
+
+
+@adapter_config(name='pictogram', context=(IAlertTarget, IPyAMSLayer, AlertContainerTable), provides=IColumn)
+class AlertContainerPictogramColumn(GetAttrColumn):
+    """Alert container pictogram image column"""
+
+    header = ''
+    weight = 10
+
+    cssClasses = {'td': 'text-center width-50'}
+    dt_sortable = 'false'
+
+    def getValue(self, obj):
+        pictogram = obj.pictogram
+        if pictogram is not None:
+            image = II18n(pictogram).query_attribute('image', request=self.request)
+            if image:
+                return '<img src="{0}" />'.format(absolute_url(image, self.request, '++thumb++32x32'))
+        return '--'
+
+
+@adapter_config(name='header', context=(IAlertTarget, IPyAMSLayer, AlertContainerTable), provides=IColumn)
+class AlertContainerHeaderColumn(I18nColumn, I18nAttrColumn):
+    """Alert container header column"""
+
+    _header = _("Header")
+    attrName = 'header'
+    weight = 20
+
+    def getValue(self, obj):
+        return super(AlertContainerHeaderColumn, self).getValue(obj) or '--'
+
+
+@adapter_config(name='name', context=(IAlertTarget, IPyAMSLayer, AlertContainerTable), provides=IColumn)
+class AlertContainerNameColumn(I18nColumn, I18nAttrColumn):
+    """Alert container message column"""
+
+    _header = _("Message")
+    attrName = 'message'
+    weight = 30
+
+    def getValue(self, obj):
+        value = super(AlertContainerNameColumn, self).getValue(obj)
+        if not value:
+            return '--'
+        return get_text_start(value, 50, 10)
+
+
+@adapter_config(name='trash', context=(IAlertTarget, IPyAMSLayer, AlertContainerTable), provides=IColumn)
+class AlertContainerTrashColumn(TrashColumn):
+    """Alert container trash column"""
+
+
+@view_config(name='delete-alert.json', context=IAlertTarget, request_type=IPyAMSLayer,
+             permission=MANAGE_SITE_ROOT_PERMISSION, renderer='json', xhr=True)
+def delete_alert(request):
+    """Delete alert"""
+    translate = request.localizer.translate
+    name = request.params.get('object_name')
+    if not name:
+        return {
+            'status': 'message',
+            'messagebox': {
+                'status': 'error',
+                'content': translate(_("No provided object_name argument!"))
+            }
+        }
+    if name not in request.context:
+        return {
+            'status': 'message',
+            'messagebox': {
+                'status': 'error',
+                'content': translate(_("Given alert name doesn't exist!"))
+            }
+        }
+    del request.context[name]
+    return {'status': 'success'}
+
+
+@pagelet_config(name='alerts.html', context=IAlertTarget, layer=IPyAMSLayer, permission=MANAGE_SITE_ROOT_PERMISSION)
+class AlertContainerView(ContainerAdminView):
+    """Alerts container view"""
+
+    title = _("Alert list")
+    table_class = AlertContainerTable
+
+
+@adapter_config(context=(IAlertTarget, IAdminLayer, AlertContainerView), provides=IPageHeader)
+class AlertContainerViewHeaderAdapter(DefaultPageHeaderAdapter):
+    """Alerts container view header adapter"""
+
+    icon_class = 'fa fa-fw fa-exclamation-triangle'
diff -r e60b9a60b546 -r 174894a2293d src/pyams_content/locales/fr/LC_MESSAGES/pyams_content.mo
Binary file src/pyams_content/locales/fr/LC_MESSAGES/pyams_content.mo has changed
diff -r e60b9a60b546 -r 174894a2293d src/pyams_content/locales/fr/LC_MESSAGES/pyams_content.po
--- a/src/pyams_content/locales/fr/LC_MESSAGES/pyams_content.po	Tue Apr 03 12:46:09 2018 +0200
+++ b/src/pyams_content/locales/fr/LC_MESSAGES/pyams_content.po	Tue Apr 03 14:53:57 2018 +0200
@@ -5,7 +5,7 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: PACKAGE 1.0\n"
-"POT-Creation-Date: 2018-03-23 11:00+0100\n"
+"POT-Creation-Date: 2018-04-03 14:35+0200\n"
 "PO-Revision-Date: 2015-09-10 10:42+0200\n"
 "Last-Translator: Thierry Florac <tflorac@ulthar.net>\n"
 "Language-Team: French\n"
@@ -115,7 +115,8 @@
 #: src/pyams_content/shared/common/zmi/types.py:457
 #: src/pyams_content/shared/imagemap/zmi/container.py:169
 #: src/pyams_content/shared/site/zmi/container.py:573
-#: src/pyams_content/root/zmi/sites.py:195
+#: src/pyams_content/root/zmi/sites.py:197
+#: src/pyams_content/features/alert/zmi/container.py:215
 msgid "No provided object_name argument!"
 msgstr "Argument 'object_name' non fourni !"
 
@@ -629,6 +630,8 @@
 
 #: src/pyams_content/component/paragraph/header.py:47
 #: src/pyams_content/component/paragraph/interfaces/header.py:40
+#: src/pyams_content/features/alert/interfaces.py:65
+#: src/pyams_content/features/alert/zmi/container.py:176
 msgid "Header"
 msgstr "Chapô"
 
@@ -679,7 +682,6 @@
 msgstr "Le jalon a été ajouté."
 
 #: src/pyams_content/component/paragraph/zmi/milestone.py:357
-#: src/pyams_content/component/paragraph/zmi/pictogram.py:371
 #: src/pyams_content/component/association/zmi/__init__.py:292
 msgid "Given association name doesn't exist!"
 msgstr "Le nom d'association indiqué n'existe pas !"
@@ -841,6 +843,10 @@
 msgid "Pictogram was correctly added"
 msgstr "Le pictogramme a été ajouté."
 
+#: src/pyams_content/component/paragraph/zmi/pictogram.py:371
+msgid "Given pictogram name doesn't exist!"
+msgstr "Le pictogramme indiqué n'existe pas !"
+
 #: src/pyams_content/component/paragraph/zmi/frame.py:84
 msgid "Framed text..."
 msgstr "Encadré"
@@ -865,27 +871,27 @@
 msgid "Edit verbatim paragraph properties"
 msgstr "Propriétés du verbatim"
 
-#: src/pyams_content/component/paragraph/zmi/html.py:77
+#: src/pyams_content/component/paragraph/zmi/html.py:78
 msgid "Raw HTML..."
 msgstr "Code HTML"
 
-#: src/pyams_content/component/paragraph/zmi/html.py:88
+#: src/pyams_content/component/paragraph/zmi/html.py:89
 msgid "Add new raw HTML paragraph"
 msgstr "Ajout d'un paragraphe de code HTML"
 
-#: src/pyams_content/component/paragraph/zmi/html.py:121
+#: src/pyams_content/component/paragraph/zmi/html.py:122
 msgid "Edit raw HTML paragraph properties"
 msgstr "Propriétés du code HTML"
 
-#: src/pyams_content/component/paragraph/zmi/html.py:192
+#: src/pyams_content/component/paragraph/zmi/html.py:193
 msgid "Rich text..."
 msgstr "Texte enrichi"
 
-#: src/pyams_content/component/paragraph/zmi/html.py:203
+#: src/pyams_content/component/paragraph/zmi/html.py:204
 msgid "Add new rich text paragraph"
 msgstr "Ajout d'un paragraphe de texte enrichi"
 
-#: src/pyams_content/component/paragraph/zmi/html.py:236
+#: src/pyams_content/component/paragraph/zmi/html.py:237
 msgid "Edit rich text paragraph properties"
 msgstr "Propriétés du paragraphe de texte enrichi"
 
@@ -919,6 +925,7 @@
 #: src/pyams_content/component/association/interfaces/__init__.py:43
 #: src/pyams_content/shared/form/interfaces/__init__.py:86
 #: src/pyams_content/shared/site/interfaces/__init__.py:107
+#: src/pyams_content/features/alert/interfaces.py:54
 msgid "Visible?"
 msgstr "Visible ?"
 
@@ -1011,10 +1018,12 @@
 
 #: src/pyams_content/component/paragraph/interfaces/pictogram.py:47
 #: src/pyams_content/shared/common/interfaces/types.py:67
+#: src/pyams_content/features/alert/interfaces.py:79
 msgid "Pictogram"
 msgstr "Pictogramme"
 
 #: src/pyams_content/component/paragraph/interfaces/pictogram.py:48
+#: src/pyams_content/features/alert/interfaces.py:80
 msgid "Name of the pictogram to select"
 msgstr "Sélection du pictogramme à afficher"
 
@@ -1026,8 +1035,8 @@
 msgid ""
 "Alternate pictogram label; if not specified, the pictogram title will be used"
 msgstr ""
-"Libellé de substitution utilisé par le pictogramme; si rien n'est spécifié, le titre "
-"du pictogramme sélectionné sera utilisé."
+"Libellé de substitution utilisé par le pictogramme; si rien n'est spécifié, "
+"le titre du pictogramme sélectionné sera utilisé."
 
 #: src/pyams_content/component/paragraph/interfaces/pictogram.py:59
 msgid "Associated text"
@@ -3171,21 +3180,21 @@
 
 #: src/pyams_content/shared/news/zmi/__init__.py:44
 msgid "This news topic"
-msgstr "Cette brève"
+msgstr "Cette actualité"
 
 #: src/pyams_content/shared/news/zmi/__init__.py:63
 #: src/pyams_content/shared/news/zmi/__init__.py:74
 msgid "Add news topic"
-msgstr "Ajouter une brève"
+msgstr "Ajouter une actualité"
 
 #: src/pyams_content/shared/news/zmi/__init__.py:54
 #, python-format
 msgid "News topic « {title} »"
-msgstr "Brève « {title} »"
+msgstr "Actualité « {title} »"
 
 #: src/pyams_content/shared/news/interfaces/__init__.py:28
 msgid "News topic"
-msgstr "Brève"
+msgstr "Actualité"
 
 #: src/pyams_content/shared/view/zmi/properties.py:38
 msgid "Main view settings"
@@ -3466,6 +3475,7 @@
 msgstr "Liste des zones cliquables définies sur l'image"
 
 #: src/pyams_content/shared/imagemap/interfaces/__init__.py:93
+#: src/pyams_content/features/alert/interfaces.py:73
 msgid "Internal reference"
 msgstr "Référence interne"
 
@@ -3525,7 +3535,7 @@
 msgid "Rent existing content"
 msgstr "Lier un contenu existant"
 
-#: src/pyams_content/shared/site/zmi/link.py:139
+#: src/pyams_content/shared/site/zmi/link.py:140
 msgid "Edit content link properties"
 msgstr "Propriétés du lien"
 
@@ -3681,16 +3691,16 @@
 msgid "Logos template"
 msgstr "Mode de rendu"
 
-#: src/pyams_content/shared/blog/zmi/__init__.py:49
+#: src/pyams_content/shared/blog/zmi/__init__.py:52
 msgid "This blog post"
 msgstr "Cet article"
 
-#: src/pyams_content/shared/blog/zmi/__init__.py:68
-#: src/pyams_content/shared/blog/zmi/__init__.py:78
+#: src/pyams_content/shared/blog/zmi/__init__.py:71
+#: src/pyams_content/shared/blog/zmi/__init__.py:81
 msgid "Add blog post"
 msgstr "Ajouter un article"
 
-#: src/pyams_content/shared/blog/zmi/__init__.py:59
+#: src/pyams_content/shared/blog/zmi/__init__.py:62
 #, python-format
 msgid "Blog post « {title} »"
 msgstr "Article de blog « {title} »"
@@ -3752,7 +3762,7 @@
 msgid "Delete shared site"
 msgstr "Supprimer ce site"
 
-#: src/pyams_content/root/zmi/sites.py:199
+#: src/pyams_content/root/zmi/sites.py:205
 msgid "Given site name doesn't exist!"
 msgstr "Le nom de site indiqué n'existe pas !"
 
@@ -4265,6 +4275,116 @@
 msgid "preview"
 msgstr "aperçu"
 
+#: src/pyams_content/features/alert/interfaces.py:40
+msgid "Success"
+msgstr "Levée d'alerte"
+
+#: src/pyams_content/features/alert/interfaces.py:41
+msgid "Information"
+msgstr "Information"
+
+#: src/pyams_content/features/alert/interfaces.py:42
+msgid "Warning"
+msgstr "Avertissement"
+
+#: src/pyams_content/features/alert/interfaces.py:43
+msgid "Danger"
+msgstr "Danger !"
+
+#: src/pyams_content/features/alert/interfaces.py:55
+msgid "Is this alert visible in front-office?"
+msgstr "Si 'non', cette alerte ne sera pas présentée aux internautes"
+
+#: src/pyams_content/features/alert/interfaces.py:59
+msgid "Alert gravity"
+msgstr "Niveau de gravité"
+
+#: src/pyams_content/features/alert/interfaces.py:60
+msgid "Alert gravity will affect rendered alert style"
+msgstr "Le niveau de gravité chosi affectera le style de rendu de l'alerte"
+
+#: src/pyams_content/features/alert/interfaces.py:66
+msgid "Short alert header"
+msgstr "En-tête de l'alerte"
+
+#: src/pyams_content/features/alert/interfaces.py:69
+#: src/pyams_content/features/alert/zmi/container.py:188
+msgid "Message"
+msgstr "Message"
+
+#: src/pyams_content/features/alert/interfaces.py:70
+msgid "Alert message"
+msgstr "Le message d'alerte doit être assez court et explicite"
+
+#: src/pyams_content/features/alert/interfaces.py:74
+msgid ""
+"Internal link target reference. You can search a reference using '+' "
+"followed by internal number, of by entering text matching content title."
+msgstr ""
+"Référence interne vers la cible du lien. Vous pouvez la rechercher par des "
+"mots de son titre, ou par son numéro interne (précédé d'un '+') ; le titre "
+"d'origine peut être modifié en utilisant le titre de substitution."
+
+#: src/pyams_content/features/alert/interfaces.py:86
+msgid "Display start date"
+msgstr "Date d'affichage"
+
+#: src/pyams_content/features/alert/interfaces.py:87
+msgid "First date at which alert should be displayed"
+msgstr "Première date à laquelle l'alerte sera affichée. Laissez la zone vide pour qu'elle soit affichée immédiatement."
+
+#: src/pyams_content/features/alert/interfaces.py:90
+msgid "Display end date"
+msgstr "Date de retrait"
+
+#: src/pyams_content/features/alert/interfaces.py:91
+msgid "Last date at which alert should be displayed"
+msgstr "Dernière date à laquelle l'alerte sera affichée. Laissez la zone vide pour qu'elle ne soit pas retirée."
+
+#: src/pyams_content/features/alert/interfaces.py:94
+msgid "Maximum interval"
+msgstr "Intervalle d'affichage"
+
+#: src/pyams_content/features/alert/interfaces.py:95
+msgid ""
+"Maximum interval between alert displays on a given device, given in hours; "
+"set to 0 to always display the alert"
+msgstr ""
+"Cet intervalle est donnée en heures ; passé ce délai, pour un internaute donné, l'alerte apparaîtra à nouveau. "
+"Si aucun intervalle n'est indiqué, l'alerte s'affichera en permanence."
+
+#: src/pyams_content/features/alert/zmi/__init__.py:45
+msgid "Add alert"
+msgstr "Ajouter une alerte"
+
+#: src/pyams_content/features/alert/zmi/__init__.py:55
+msgid "Add new alert"
+msgstr "Ajout d'une alerte"
+
+#: src/pyams_content/features/alert/zmi/__init__.py:82
+msgid "Edit alert properties"
+msgstr "Propriétés de l'alerte"
+
+#: src/pyams_content/features/alert/zmi/container.py:55
+msgid "Alerts"
+msgstr "Alertes"
+
+#: src/pyams_content/features/alert/zmi/container.py:128
+msgid "Switch alert visibility"
+msgstr "Cliquez pour rendre l'alerte visible ou non"
+
+#: src/pyams_content/features/alert/zmi/container.py:234
+msgid "Alert list"
+msgstr "Liste des alertes"
+
+#: src/pyams_content/features/alert/zmi/container.py:93
+msgid "No currently defined alert."
+msgstr "Aucune alerte n'est définie actuellement."
+
+#: src/pyams_content/features/alert/zmi/container.py:223
+msgid "Given alert name doesn't exist!"
+msgstr "L'alerte indiquée n'existe pas !"
+
 #: src/pyams_content/features/review/__init__.py:186
 #, python-format
 msgid "Request comment: {comment}"
@@ -4534,14 +4654,6 @@
 #~ msgid "internal reference target is not published"
 #~ msgstr "l'image cliquable référencée n'est pas publiée"
 
-#~ msgid ""
-#~ "Internal link target reference. You can search a reference using '+' "
-#~ "followed by internal number, of by entering text matching content title."
-#~ msgstr ""
-#~ "Référence interne vers la cible du lien. Vous pouvez la rechercher par "
-#~ "des mots de son titre, ou par son numéro interne (précédé d'un '+') ; le "
-#~ "titre d'origine peut être modifié en utilisant le titre de substitution."
-
 #~ msgid "Image style"
 #~ msgstr "Style de l'illustration"
 
@@ -4664,9 +4776,6 @@
 #~ msgid "Edit galleries links"
 #~ msgstr "Galeries d'images associées"
 
-#~ msgid "No currently defined gallery."
-#~ msgstr "Aucune galerie d'images associée à ce contenu."
-
 #~ msgid "Visible gallery?"
 #~ msgstr "Galerie visible ?"
 
@@ -4736,9 +4845,6 @@
 #~ msgid "About this version"
 #~ msgstr "À propos de cette version"
 
-#~ msgid "Display first version date"
-#~ msgstr "Date de publication de la première version"
-
 #~ msgid "Display current version date"
 #~ msgstr "Date de publication de cette version"
 
diff -r e60b9a60b546 -r 174894a2293d src/pyams_content/locales/pyams_content.pot
--- a/src/pyams_content/locales/pyams_content.pot	Tue Apr 03 12:46:09 2018 +0200
+++ b/src/pyams_content/locales/pyams_content.pot	Tue Apr 03 14:53:57 2018 +0200
@@ -6,7 +6,7 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: PACKAGE 1.0\n"
-"POT-Creation-Date: 2018-03-23 11:00+0100\n"
+"POT-Creation-Date: 2018-04-03 14:35+0200\n"
 "PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
 "Last-Translator: FULL NAME <EMAIL@ADDRESS\n"
 "Language-Team: LANGUAGE <LL@li.org>\n"
@@ -116,7 +116,8 @@
 #: ./src/pyams_content/shared/common/zmi/types.py:457
 #: ./src/pyams_content/shared/imagemap/zmi/container.py:169
 #: ./src/pyams_content/shared/site/zmi/container.py:573
-#: ./src/pyams_content/root/zmi/sites.py:195
+#: ./src/pyams_content/root/zmi/sites.py:197
+#: ./src/pyams_content/features/alert/zmi/container.py:215
 msgid "No provided object_name argument!"
 msgstr ""
 
@@ -602,6 +603,8 @@
 
 #: ./src/pyams_content/component/paragraph/header.py:47
 #: ./src/pyams_content/component/paragraph/interfaces/header.py:40
+#: ./src/pyams_content/features/alert/interfaces.py:65
+#: ./src/pyams_content/features/alert/zmi/container.py:176
 msgid "Header"
 msgstr ""
 
@@ -652,7 +655,6 @@
 msgstr ""
 
 #: ./src/pyams_content/component/paragraph/zmi/milestone.py:357
-#: ./src/pyams_content/component/paragraph/zmi/pictogram.py:371
 #: ./src/pyams_content/component/association/zmi/__init__.py:292
 msgid "Given association name doesn't exist!"
 msgstr ""
@@ -802,6 +804,10 @@
 msgid "Pictogram was correctly added"
 msgstr ""
 
+#: ./src/pyams_content/component/paragraph/zmi/pictogram.py:371
+msgid "Given pictogram name doesn't exist!"
+msgstr ""
+
 #: ./src/pyams_content/component/paragraph/zmi/frame.py:84
 msgid "Framed text..."
 msgstr ""
@@ -826,27 +832,27 @@
 msgid "Edit verbatim paragraph properties"
 msgstr ""
 
-#: ./src/pyams_content/component/paragraph/zmi/html.py:77
+#: ./src/pyams_content/component/paragraph/zmi/html.py:78
 msgid "Raw HTML..."
 msgstr ""
 
-#: ./src/pyams_content/component/paragraph/zmi/html.py:88
+#: ./src/pyams_content/component/paragraph/zmi/html.py:89
 msgid "Add new raw HTML paragraph"
 msgstr ""
 
-#: ./src/pyams_content/component/paragraph/zmi/html.py:121
+#: ./src/pyams_content/component/paragraph/zmi/html.py:122
 msgid "Edit raw HTML paragraph properties"
 msgstr ""
 
-#: ./src/pyams_content/component/paragraph/zmi/html.py:192
+#: ./src/pyams_content/component/paragraph/zmi/html.py:193
 msgid "Rich text..."
 msgstr ""
 
-#: ./src/pyams_content/component/paragraph/zmi/html.py:203
+#: ./src/pyams_content/component/paragraph/zmi/html.py:204
 msgid "Add new rich text paragraph"
 msgstr ""
 
-#: ./src/pyams_content/component/paragraph/zmi/html.py:236
+#: ./src/pyams_content/component/paragraph/zmi/html.py:237
 msgid "Edit rich text paragraph properties"
 msgstr ""
 
@@ -880,6 +886,7 @@
 #: ./src/pyams_content/component/association/interfaces/__init__.py:43
 #: ./src/pyams_content/shared/form/interfaces/__init__.py:86
 #: ./src/pyams_content/shared/site/interfaces/__init__.py:107
+#: ./src/pyams_content/features/alert/interfaces.py:54
 msgid "Visible?"
 msgstr ""
 
@@ -966,10 +973,12 @@
 
 #: ./src/pyams_content/component/paragraph/interfaces/pictogram.py:47
 #: ./src/pyams_content/shared/common/interfaces/types.py:67
+#: ./src/pyams_content/features/alert/interfaces.py:79
 msgid "Pictogram"
 msgstr ""
 
 #: ./src/pyams_content/component/paragraph/interfaces/pictogram.py:48
+#: ./src/pyams_content/features/alert/interfaces.py:80
 msgid "Name of the pictogram to select"
 msgstr ""
 
@@ -3271,6 +3280,7 @@
 msgstr ""
 
 #: ./src/pyams_content/shared/imagemap/interfaces/__init__.py:93
+#: ./src/pyams_content/features/alert/interfaces.py:73
 msgid "Internal reference"
 msgstr ""
 
@@ -3326,7 +3336,7 @@
 msgid "Rent existing content"
 msgstr ""
 
-#: ./src/pyams_content/shared/site/zmi/link.py:139
+#: ./src/pyams_content/shared/site/zmi/link.py:140
 msgid "Edit content link properties"
 msgstr ""
 
@@ -3480,16 +3490,16 @@
 msgid "Logos template"
 msgstr ""
 
-#: ./src/pyams_content/shared/blog/zmi/__init__.py:49
+#: ./src/pyams_content/shared/blog/zmi/__init__.py:52
 msgid "This blog post"
 msgstr ""
 
-#: ./src/pyams_content/shared/blog/zmi/__init__.py:68
-#: ./src/pyams_content/shared/blog/zmi/__init__.py:78
+#: ./src/pyams_content/shared/blog/zmi/__init__.py:71
+#: ./src/pyams_content/shared/blog/zmi/__init__.py:81
 msgid "Add blog post"
 msgstr ""
 
-#: ./src/pyams_content/shared/blog/zmi/__init__.py:59
+#: ./src/pyams_content/shared/blog/zmi/__init__.py:62
 #, python-format
 msgid "Blog post « {title} »"
 msgstr ""
@@ -3551,7 +3561,7 @@
 msgid "Delete shared site"
 msgstr ""
 
-#: ./src/pyams_content/root/zmi/sites.py:199
+#: ./src/pyams_content/root/zmi/sites.py:205
 msgid "Given site name doesn't exist!"
 msgstr ""
 
@@ -4057,6 +4067,111 @@
 msgid "preview"
 msgstr ""
 
+#: ./src/pyams_content/features/alert/interfaces.py:40
+msgid "Success"
+msgstr ""
+
+#: ./src/pyams_content/features/alert/interfaces.py:41
+msgid "Information"
+msgstr ""
+
+#: ./src/pyams_content/features/alert/interfaces.py:42
+msgid "Warning"
+msgstr ""
+
+#: ./src/pyams_content/features/alert/interfaces.py:43
+msgid "Danger"
+msgstr ""
+
+#: ./src/pyams_content/features/alert/interfaces.py:55
+msgid "Is this alert visible in front-office?"
+msgstr ""
+
+#: ./src/pyams_content/features/alert/interfaces.py:59
+msgid "Alert gravity"
+msgstr ""
+
+#: ./src/pyams_content/features/alert/interfaces.py:60
+msgid "Alert gravity will affect rendered alert style"
+msgstr ""
+
+#: ./src/pyams_content/features/alert/interfaces.py:66
+msgid "Short alert header"
+msgstr ""
+
+#: ./src/pyams_content/features/alert/interfaces.py:69
+#: ./src/pyams_content/features/alert/zmi/container.py:188
+msgid "Message"
+msgstr ""
+
+#: ./src/pyams_content/features/alert/interfaces.py:70
+msgid "Alert message"
+msgstr ""
+
+#: ./src/pyams_content/features/alert/interfaces.py:74
+msgid ""
+"Internal link target reference. You can search a reference using '+' followed"
+" by internal number, of by entering text matching content title."
+msgstr ""
+
+#: ./src/pyams_content/features/alert/interfaces.py:86
+msgid "Display start date"
+msgstr ""
+
+#: ./src/pyams_content/features/alert/interfaces.py:87
+msgid "First date at which alert should be displayed"
+msgstr ""
+
+#: ./src/pyams_content/features/alert/interfaces.py:90
+msgid "Display end date"
+msgstr ""
+
+#: ./src/pyams_content/features/alert/interfaces.py:91
+msgid "Last date at which alert should be displayed"
+msgstr ""
+
+#: ./src/pyams_content/features/alert/interfaces.py:94
+msgid "Maximum interval"
+msgstr ""
+
+#: ./src/pyams_content/features/alert/interfaces.py:95
+msgid ""
+"Maximum interval between alert displays on a given device, given in hours; "
+"set to 0 to always display the alert"
+msgstr ""
+
+#: ./src/pyams_content/features/alert/zmi/__init__.py:45
+msgid "Add alert"
+msgstr ""
+
+#: ./src/pyams_content/features/alert/zmi/__init__.py:55
+msgid "Add new alert"
+msgstr ""
+
+#: ./src/pyams_content/features/alert/zmi/__init__.py:82
+msgid "Edit alert properties"
+msgstr ""
+
+#: ./src/pyams_content/features/alert/zmi/container.py:55
+msgid "Alerts"
+msgstr ""
+
+#: ./src/pyams_content/features/alert/zmi/container.py:128
+msgid "Switch alert visibility"
+msgstr ""
+
+#: ./src/pyams_content/features/alert/zmi/container.py:234
+msgid "Alert list"
+msgstr ""
+
+#: ./src/pyams_content/features/alert/zmi/container.py:93
+msgid "No currently defined alert."
+msgstr ""
+
+#: ./src/pyams_content/features/alert/zmi/container.py:223
+msgid "Given alert name doesn't exist!"
+msgstr ""
+
 #: ./src/pyams_content/features/review/__init__.py:186
 #, python-format
 msgid "Request comment: {comment}"
diff -r e60b9a60b546 -r 174894a2293d src/pyams_content/root/__init__.py
--- a/src/pyams_content/root/__init__.py	Tue Apr 03 12:46:09 2018 +0200
+++ b/src/pyams_content/root/__init__.py	Tue Apr 03 14:53:57 2018 +0200
@@ -18,6 +18,7 @@
 # import standard library
 
 # import interfaces
+from pyams_content.features.alert import IAlertTarget
 from pyams_content.features.preview.interfaces import IPreviewTarget
 from pyams_content.interfaces import WEBMASTER_ROLE, OPERATOR_ROLE
 from pyams_content.root.interfaces import ISiteRootRoles, ISiteRootConfiguration, ISiteRoot, \
@@ -43,7 +44,8 @@
 from zope.interface import implementer
 
 
-@implementer(IDefaultProtectionPolicy, ISiteRoot, ISiteRootRoles, IPortalContext, IPreviewTarget)
+@implementer(IDefaultProtectionPolicy, ISiteRoot, ISiteRootRoles, IPortalContext,
+             IAlertTarget, IPreviewTarget)
 class SiteRoot(ProtectedObject, BaseSiteRoot, UserSkinnableContent):
     """Main site root"""