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62 lines
2.4 KiB
TeX
62 lines
2.4 KiB
TeX
\section{Standard Module \sectcode{MiniAEFrame}}
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\stmodindex{MiniAEFrame}
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\label{module-MiniAEFrame}
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The module \var{MiniAEFrame} provides a framework for an application
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that can function as an OSA server, i.e. receive and process
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AppleEvents. It can be used in conjunction with \var{FrameWork} or
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standalone.
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This module is temporary, it will eventually be replaced by a module
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that handles argument names better and possibly automates making your
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application scriptable.
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The \var{MiniAEFrame} module defines the following classes:
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\setindexsubitem{(in module MiniAEFrame)}
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\begin{funcdesc}{AEServer}{}
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A class that handles AppleEvent dispatch. Your application should
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subclass this class together with either
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\code{MiniAEFrame.MiniApplication} or
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\code{FrameWork.Application}. Your \code{__init__} method should call
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the \code{__init__} method for both classes.
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\end{funcdesc}
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\begin{funcdesc}{MiniApplication}{}
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A class that is more or less compatible with
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\code{FrameWork.Application} but with less functionality. Its
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eventloop supports the apple menu, command-dot and AppleEvents, other
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events are passed on to the Python interpreter and/or Sioux.
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Useful if your application wants to use \code{AEServer} but does not
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provide its own windows, etc.
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\end{funcdesc}
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\subsection{AEServer Objects}
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\setindexsubitem{(AEServer method)}
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\begin{funcdesc}{installaehandler}{classe, type, callback}
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Installs an AppleEvent handler. \code{Classe} and \code{type} are the
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four-char OSA Class and Type designators, \code{'****'} wildcards are
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allowed. When a matching AppleEvent is received the parameters are
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decoded and your callback is invoked.
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\end{funcdesc}
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\begin{funcdesc}{callback}{_object, **kwargs}
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Your callback is called with the OSA Direct Object as first positional
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parameter. The other parameters are passed as keyword arguments, with
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the 4-char designator as name. Three extra keyword parameters are
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passed: \code{_class} and \code{_type} are the Class and Type
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designators and \code{_attributes} is a dictionary with the AppleEvent
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attributes.
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The return value of your method is packed with
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\code{aetools.packevent} and sent as reply.
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\end{funcdesc}
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Note that there are some serious problems with the current
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design. AppleEvents which have non-identifier 4-char designators for
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arguments are not implementable, and it is not possible to return an
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error to the originator. This will be addressed in a future release.
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