Source code for plone.app.tiles.browser.base

from zope.component import getMultiAdapter
from zope.security import checkPermission

from AccessControl import Unauthorized

from z3c.form.interfaces import IWidgets
from plone.autoform.form import AutoExtensibleForm
from plone.z3cform.interfaces import IDeferSecurityCheck

from plone.app.drafts.interfaces import ICurrentDraftManagement


class TileFormLayout(object):
    """Layout view giving access to macro slots
    """

    def __init__(self, context, request):
        self.context = context
        self.request = request

    @property
    def macros(self):
        return self.index.macros


class TileForm(AutoExtensibleForm):
    """Mixin class for tile add/edit forms, which will load the tile schema
    and set up an appropriate form.
    """

    # Must be set by subclass
    tileType = None
    tileId = None

    # Get fieldets if subclass sets additional_schemata
    autoGroups = True

    # We don't want the tile edit screens to use a form prefix, so that we
    # can pass simple things on the edit screen and have them be interpreted
    # by transient tiles
    prefix = ''

    def update(self):

        # Set up draft information if required
        currentDraft = ICurrentDraftManagement(self.request)
        currentDraft.mark()

        # Override to check the tile add/edit permission
        if not IDeferSecurityCheck.providedBy(self.request):
            if not checkPermission(self.tileType.add_permission, self.context):
                raise Unauthorized(
                    "You are not allowed to add this kind of tile")

        super(TileForm, self).update()

    def render(self):
        if self.request.response.getStatus() in (301, 302):
            return ''
        return super(TileForm, self).render()

    def updateWidgets(self):
        # Override to set the widgets prefix before widgets are updated
        self.widgets = getMultiAdapter((self, self.request, self.getContent()),
            IWidgets)
        self.widgets.prefix = self.tileType.__name__
        self.widgets.mode = self.mode
        self.widgets.ignoreContext = self.ignoreContext
        self.widgets.ignoreRequest = self.ignoreRequest
        self.widgets.ignoreReadonly = self.ignoreReadonly
        self.widgets.update()

    @property
    def description(self):
        return self.tileType.description

    # AutoExtensibleForm contract

    @property
    def schema(self):
        return self.tileType.schema

    additionalSchemata = ()