from plone.app.controlpanel.interfaces import IPloneControlPanelView
from plone.app.controlpanel.interfaces import IPloneControlPanelForm
from Products.CMFPlone import PloneMessageFactory as _
from zope.schema import ValidationError


class EmailAddressInvalid(ValidationError):
    __doc__ = _(u'Invalid email address.')


class IAccountPanelView(IPloneControlPanelView):
    """A marker interface for views showing an account panel.
    """


class IAccountPanelForm(IPloneControlPanelForm):
    """Forms using plone.app.users
    """

    def _on_save():
        """Callback mehod which can be implemented by control panels to
        react when the form is successfully saved. This avoids the need
        to re-define actions only to do some additional notification or
        configuration which cannot be handled by the normal schema adapter.

        By default, does nothing.
        """