[compiz] Tweaks to plugin dependency rules

[Dennis Kasprzyk]

Am Mittwoch, 11. April 2007 19:45 schrieb Mike Dransfield:
> It seems to me that the plugin dependencies are not flexible
> enough for most plugins.
>
> The particular problem I am thinking about is animation/group
> and fade.  They both specify RuleAfter but compiz interprets
> that as 'load after AND require it', there is a Require rule, but
> this relates to features not plugins.
>
> I would like to propose these changes and definitions, they seem
> more logical unless I am missing something.
>
> CompPluginRuleBefore - If this plugin is loaded, make sure I am
> loaded before it.
>
> CompPluginRuleAfter - If this plugin is loaded, make sure I am
> loaded after
>
> CompPluginRuleRequire - Require this plugin to be loaded if I
> am loaded.  This can be combined with other rules.  This is roughly
> what RuleAfter is now.
>
> CompPluginRuleRequireFeature - Requires a feature to be
> loaded.
>
> What do you think?  RuleBefore might be tricky to implement
> because it is checked retrospectively.  It would probably take
> 2 passes for each check, but maybe we could find a better way.
>
> _______________________________________________
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> compiz at lists.freedesktop.org
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I have already discussed this problem with David, and we came to that 
conclusion to remove the rule checking code from compiz during the switch to 
xml metadata and let the configuration tools check the rules. The rules will 
be a part of the xml metadata file.

Dennis