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Re: DBus Menu in Gtk theme

From: David Chisnall
Subject: Re: DBus Menu in Gtk theme
Date: Wed, 15 Jan 2014 11:55:01 -0800

On 15 Jan 2014, at 11:34, Niels Grewe <address@hidden> wrote:

> Hi guys,
> Am 01.01.2014 um 21:09 schrieb Niels Grewe <address@hidden>:
>> Unfortunately, it’s not very useful at the moment, because I haven’t 
>> implemented sending signals/notifications from DBusKit out to other D-Bus 
>> objects. This is required to keep the menu server updated about the current 
>> status of the menu, so by the time you start interacting with the menu, the 
>> structure is out of date and ends up getting a bit messed up, so many of the 
>> menu items won’t work properly.
> Well, about this. I’ve implemented the signal stuff, and it turns out that 
> not properly updating the menu wasn’t the entire problem. The other problem 
> was that D-Bus has a type called ‘variant’, which basically means ‘whatever 
> we agreed upon in some obscure comment in the interface description file that 
> really should be backed by a proper specification’ 
> The existing approach was to make an educated guess about what D-Bus type 
> most closely matches the Objective-C type of the object you’re passing, and 
> assume that the other side, e.g. promote integers to the larger type if 
> required, etc. That was of course a bit fragile, and as it turns out, fails 
> for a number of D-Bus implementations (for example the one used in 
> libdbusmenu). As a result, I have extended DBusKit with an interface for 
> explicitly indicating the type as which an object should be passed over the 
> bus.
> Using these changes, our D-Bus menu implementation is now working to the 
> point where it is just as usable as  the native menu. It even passes icons 
> along to the global menu. That’s so cool! The one remaining problem that I 
> can’t figure out right now is that the menu is not being restored when you 
> minimise and re-maximise the window. But I’m sure that we’ll figure that out 
> eventually.

That's really great!  I'd love to see the Ubuntu packages use this and the 
GNOME theme by default, so GNUstep applications looked and felt like other 
applications out of the box.


-- Sent from my brain

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