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List: kde-panel-devel
Subject: Re: [Panel-devel] Scripted DataEngines
From: "Aaron J. Seigo" <aseigo () kde ! org>
Date: 2007-11-29 15:58:06
Message-ID: 200711290858.07291.aseigo () kde ! org
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On Thursday 29 November 2007, Petri Damstén wrote:
> I know that this was discussed earlier and Aaron don't like it. I know I'm
i have a few issues with teh idea, yes. i really don't want to have to deal
with a mess of engines written in N different languages, nor do i want to
have N+1 entry points to the engine system. i'd like to *encourage* people to
write the engines in c++ so that we don't get these huge memory consuming
beasts that do things slowly. we're not talking about UI here, but actual
mechanics; it's akin to writing underlying libraries in higher level
languages: you can but you pay a penalty.
> hardheaded and do things my own way but please at least consider this...
;)
> This patch adds support for making script dataEngines. I tried to change
*if* we are going to do this, it won't be until 4.1. and *if* we do this, i'd
really prefer to see this done as we do with Applets:
when an applet is discovered via the kservice query, we check
X-Plasma-Language. we then query for a Plasma/ScriptEngine plugin and load a
ScriptEngine. we pass it the Applet* and the engine provides the glue.
this has a number of benefits over coding in the engine with X-EngineName: the
writer only needs to know the language they are writing in, not the plugin
that supports it; it allows us to swap ScriptEngines around for the same
language with no changes to the scripts ...
additionally, *if* we do this, i'd like to see ScriptEngine extended to
support this. right now ScriptEngine is pretty Applet-centric. but we will
likely end up supporting scripted runners as well, and i'd really, really
like to avoid having N*Y plugins where Y are the types (applets, runners,
engine) and N are the languages. much more sensible, to me, would be to have
one class that handles all the scripting needs for a given language. then one
person can sit down and write one plugin; this should also keep code quality
consistent and encourage people to work together.
--
Aaron J. Seigo
humru othro a kohnu se
GPG Fingerprint: 8B8B 2209 0C6F 7C47 B1EA EE75 D6B7 2EB1 A7F1 DB43
KDE core developer sponsored by Trolltech
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