Added settings controlpanel with custom css field

backend/src/ploneorg/src/ploneorg/browser/configure.zcml

@@ -12,6 +12,16 @@
       type="plone"
       />
 
+  <!-- Ploneorg settings controlpanel -->
+  <browser:page
+      name="ploneorg-settings"
+      for="Products.CMFPlone.interfaces.IPloneSiteRoot"
+      class="..controlpanel.PloneorgSettings"
+      permission="cmf.ManagePortal"
+      layer="ploneorg.interfaces.IPLONEORGLayer"
+      />
+
+
   <!-- Import stuff (for migration only) -->
   <browser:page
       name="import_content"

backend/src/ploneorg/src/ploneorg/controlpanel.py

@@ -0,0 +1,16 @@
+from plone.app.registry.browser.controlpanel import (
+    ControlPanelFormWrapper,
+    RegistryEditForm,
+)
+from ploneorg import _
+from ploneorg.interfaces import IPLONEORGSettings
+
+
+class PloneorgSettingsForm(RegistryEditForm):
+    schema = IPLONEORGSettings
+    label = _("ploneorg_settings_label", default="Plone.org Settings")
+    description = ""
+
+
+class PloneorgSettings(ControlPanelFormWrapper):
+    form = PloneorgSettingsForm

backend/src/ploneorg/src/ploneorg/interfaces.py

@@ -1,7 +1,23 @@
 """Module where all interfaces, events and exceptions live."""
 
+from plone.restapi.controlpanels.interfaces import IControlpanel
+from ploneorg import _
 from zope.publisher.interfaces.browser import IDefaultBrowserLayer
+from zope.schema import SourceText
 
 
 class IPLONEORGLayer(IDefaultBrowserLayer):
     """Marker interface that defines a browser layer."""
+
+
+class IPLONEORGSettings(IControlpanel):
+    custom_css = SourceText(
+        title=_("custom_css_label", default="Custom CSS"),
+        description=_(
+            "custom_css_help",
+            default="Add custom CSS in your site. \n"
+            "Warning: use this at your own risk!",
+        ),
+        required=False,
+        default="",
+    )

backend/src/ploneorg/src/ploneorg/profiles/default/controlpanel.xml

@@ -0,0 +1,21 @@
+<?xml version="1.0"?>
+<object
+    name="portal_controlpanel"
+    xmlns:i18n="http://xml.zope.org/namespaces/i18n"
+    i18n:domain="ploneorg"
+    purge="False">
+
+    <configlet
+        title="Plone.org Settings"
+        action_id="ploneorg-settings"
+        appId="ploneorg"
+        category="Products"
+        condition_expr=""
+        url_expr="string:${portal_url}/@@ploneorg-settings"
+        icon_expr=""
+        visible="True"
+        i18n:attributes="title">
+        <permission>Manage portal</permission>
+    </configlet>
+
+</object>

backend/src/ploneorg/src/ploneorg/profiles/default/registry/ploneorg.interfaces.IPLONEORGSettings.xml

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<registry>
+  <records interface="ploneorg.interfaces.IPLONEORGSettings" />
+</registry>

backend/src/ploneorg/src/ploneorg/services/configure.zcml

@@ -1,3 +1,6 @@
 <configure xmlns="http://namespaces.zope.org/zope">
 
+  <include package=".controlpanel" />
+  <include package=".custom_css" />
+
 </configure>

backend/src/ploneorg/src/ploneorg/services/controlpanel/configure.zcml

@@ -0,0 +1,10 @@
+<configure xmlns="http://namespaces.zope.org/zope">
+
+  <!-- controlpanel service -->
+  <adapter
+      factory=".controlpanel.PloneorgSettingsControlpanel"
+      provides="ploneorg.interfaces.IPLONEORGSettings"
+      name="ploneorg-settings"
+      />
+
+</configure>

backend/src/ploneorg/src/ploneorg/services/controlpanel/controlpanel.py

@@ -0,0 +1,13 @@
+from plone.restapi.controlpanels import RegistryConfigletPanel
+from ploneorg.interfaces import IPLONEORGLayer, IPLONEORGSettings
+from zope.component import adapter
+from zope.interface import Interface, implementer
+
+
+@adapter(Interface, IPLONEORGLayer)
+@implementer(IPLONEORGSettings)
+class PloneorgSettingsControlpanel(RegistryConfigletPanel):
+    schema = IPLONEORGSettings
+    configlet_id = "ploneorg-settings"
+    configlet_category_id = "Products"
+    schema_prefix = None

backend/src/ploneorg/src/ploneorg/services/custom_css/configure.zcml

@@ -0,0 +1,18 @@
+<configure
+    xmlns="http://namespaces.zope.org/zope"
+    xmlns:plone="http://namespaces.plone.org/plone"
+    xmlns:zcml="http://namespaces.zope.org/zcml"
+    >
+
+
+  <!-- endpoint to get custom css -->
+  <plone:service
+      method="GET"
+      factory=".get.CustomCSS"
+      for="Products.CMFCore.interfaces.ISiteRoot"
+      permission="zope2.View"
+      name="@custom-css"
+      />
+
+
+</configure>

backend/src/ploneorg/src/ploneorg/services/custom_css/get.py

@@ -0,0 +1,18 @@
+# -*- coding: utf-8 -*-
+from plone import api
+from plone.restapi.services import Service
+from ploneorg.interfaces import IPLONEORGSettings
+from zope.interface import implementer
+from zope.publisher.interfaces import IPublishTraverse
+
+
+@implementer(IPublishTraverse)
+class CustomCSS(Service):
+    def __init__(self, context, request):
+        super(CustomCSS, self).__init__(context, request)
+
+    def reply(self):
+        record = api.portal.get_registry_record(
+            "custom_css", interface=IPLONEORGSettings, default=""
+        )
+        return {"data": record}