I'm trying to make an application in Python3 with Gtk and other GNOME technologies. I want to implement a plugin system(preferably libpeas) but it has no documentation for python.
Hence I was translating the C examples, to python. At the point where I have to instantiate PeasExtensionSet.
First tried,
pset = Peas.ExtensionSet.new(engine, Peas.Activatable, ["window",window])
pset.connect("extension-added", self.on_extension_added, None)
pset.connect("extension-removed", self.on_extension_removed, None)
Error: Expected GObject.Parameter, but got str
Then tried,
param = GObject.Parameter()
param.name = "something"
pset = Peas.ExtensionSet.new(engine, Peas.Activatable, [param])
pset.connect("extension-added", self.on_extension_added, None)
pset.connect("extension-removed", self.on_extension_removed, None)
Warning: can't peek value table for type '' which is not currently referenced.
Warning: gvalue.c:188: cannot initialize GValue with type '(null)', this type has no GTypeValueTable implementation
Warning: g_value_copy: assertion 'G_IS_VALUE (src_value)' failed
Then tried,
param.value=window
Error: cannot set a structure which has no well-defined ownership transfer rules
Now I got stuck here. Any help would be appreciated.
This is a known bug and is being tackled here and here.
We can make it work with some hacky changes in the API and by doing this on the extension-added signal:
def on_extension_added(self, set, info, activatable):
# main difference from how normal libpeas plugin system works
activatable.set_object(self.public_object)
activatable.activate()