[compiz] [PATCH] Actions restrictions

[Vasek Potocek]

> On Tue, 2007-03-06 at 11:39 +0100, Cedric wrote:
>> Here a patch to add actions restrictions to core.
>>
>> What it do:
>> - add restrictActionsMask to CompWindow.
>> - add constrainWindowActions() returning "filtered" window actions
>> - add changeWindowActions() taking care of restrictActionsMask
>>
>> I have do some testing with winrules, seems to works well.
>> David, maybe you have a better idea?
> 
> This only allows one plugin to restrict actions. We want to allow any
> number of plugins to restrict available actions.
> 
> I quickly added a getAllowedActionsForWindow screen function that should
> take care of this. Wrap getAllowedActionsForWindow and do something like
> this in your plugin implementation of that function:
> 
> static unsigned int
> pluginGetOutputExtentsForWindow (CompWindow *w)
> {
>     unsigned int actions;
> 
>     PLUGIN_WINDOW (w);
> 
>     UNWRAP (ps, w->screen, getAllowedActionsForWindow);
>     actions = (*w->screen->getAllowedActionsForWindow) (w);
>     WRAP (ps, w->screen, getAllowedActionsForWindow,
> 	  pluginGetAllowedActionsForWindow);
> 
>     return actions & pluginAllowedActions;
> }
> 
> and call recalcWindowActions whenever you want it updated.
> 
> Any problems, just let me know.
> 
> - David

There is a little but a bit funny typing error - it is necessary to delete the tilde on line 696 of window.c, otherwise 
all common actions will be taken from all the windows.

Vasek