U ^žìM)ã@sPdZdZdZddlmZddlZddlZddlmZm Z m Z dd „Z d d „Z dS) z%Utils for using deferreds with D-Bus.z%Sebastian Heinlein )Údbus_deferred_methodÚ deferableé©ÚwrapsNé)ÚdeferÚDeferredÚDeferredExceptioncs‡‡fdd„}|S)a¦Export the decorated method on the D-Bus and handle a maybe returned Deferred. This decorator can be applied to methods in the same way as the @dbus.service.method method, but it correctly handles the case where the method returns a Deferred. This decorator was kindly taken from James Henstridge blog post and adopted: http://blogs.gnome.org/jamesh/2009/07/06/watching-iview-with-rygel/ cs0tjjˆˆŽˆƒ‰tˆƒ‡fdd„ƒ}d|_|S)NcsP‡fdd„}| d¡‰| d¡‰tˆf|ž|Ž}| |¡| ‡fdd„¡dS)Ncs|dkrˆƒnˆ|ŽdS)N©N©)Zcb_args)Ú dbus_callbackr ú-/usr/lib/python3/dist-packages/defer/utils.pyÚignore_none_callback5szVdbus_deferred_method..decorator..wrapper..ignore_none_callbackÚ_dbus_callbackÚ _dbus_errbackcs ˆ|jƒSr )Úvalue)Úerror)Ú dbus_errbackr r Ú@ózJdbus_deferred_method..decorator..wrapper..)ÚpoprZ add_callbackZ add_errback)ÚargsÚkwargsrÚdeferred©Úfunction)r rr Úwrapper3s     z8dbus_deferred_method..decorator..wrapper)rr)ÚdbusÚserviceÚmethodrZ_dbus_async_callbacks)rr©rrrr Ú decorator1s z'dbus_deferred_method..decoratorr )rrr!r r r r%s rcstˆƒ‡fdd„ƒ}|S)a:Add a defer attribute to the decorated function and return a Deferred object. The callback of the Deferred will be passed as reply_handler argument and the errback as the error_handler argument to the decorated function. This decorator allows to easily make use of Deferreds in a DBus client. c s dd„‰z| d¡}WnJtk r`t ¡}z|dddk}Wntk rZd}YnXYnX|r–tƒ‰ˆj|d<‡‡fd d „|d <ˆ||ŽˆSˆ||ŽS) NcSs(t|tƒr| |¡n| t|ƒ¡dSr )Ú isinstancer Zerrback)rrr r r Úon_errorRs  z/deferable.._deferable..on_errorrééZ_inline_callbacksFZ reply_handlercs ˆ|ˆƒSr r )Úerr©rr#r r rhrz/deferable.._deferable..Z error_handler)rÚKeyErrorÚinspectÚstackÚ IndexErrorrÚcallback)rrZto_deferr*©Úfuncr'r Ú _deferablePs   zdeferable.._deferabler)r.r/r r-r rHsr) Ú__doc__Ú __author__Ú__all__Ú functoolsrr)rÚrrr rrr r r r Ús #