def grok(self, name, interface, module_info, config, **kw):
# This `InstanceGrokker` will be called for every instance of
# `InterfaceClass` - that is, for every interface defined in an
# application module! So we have to do our own filtering, by
# checking whether each interface includes the `grok.restskin()`
# directive, and skipping those that do not.
restskin = grok.restskin.bind(default=_restskin_not_used
).get(interface)
if restskin is _restskin_not_used:
# The restskin directive is not actually used on the found
# interface.
return False
if not interface.extends(grok.IRESTLayer):
# For REST layers it is required to extend IRESTLayer.
raise GrokError(
"The grok.restskin() directive is used on interface %r. "
"However, %r does not extend IRESTLayer which is "
"required for interfaces that are used as layers and are to "
"be registered as a restskin."
% (interface.__identifier__, interface.__identifier__),
interface
)
config.action(
discriminator=('restprotocol', restskin),
callable=zope.component.interface.provideInterface,
args=(restskin, interface, IRESTSkinType)
)
return True
def grok(self, name, interface, module_info, config, **kw):
skin = grokcore.view.skin.bind(default=_skin_not_used).get(interface)
if skin is _skin_not_used:
# The skin directive is not actually used on the found interface.
return False
if not interface.extends(IBrowserRequest):
# For layers it is required to extend IBrowserRequest.
raise GrokError(
"The grok.skin() directive is used on interface %r. "
"However, %r does not extend IBrowserRequest which is "
"required for interfaces that are used as layers and are to "
"be registered as a skin."
% (interface.__identifier__, interface.__identifier__),
interface
)
config.action(
discriminator=('utility', IBrowserSkinType, skin),
callable=zope.component.interface.provideInterface,
args=(skin, interface, IBrowserSkinType)
)
return True
