How to use the vcard.VcardWindow function in vcard

def edit_own_details(self, account):
		jid = gajim.get_jid_from_account(account)
		if not self.instances[account]['infos'].has_key(jid):
			self.instances[account]['infos'][jid] = \
				vcard.VcardWindow(jid, account, True)
			gajim.connections[account].request_vcard(jid)

def on_info(self, widget, room_jid, nick):
		'''Call vcard_information_window class to display user's information'''
		c = gajim.contacts.get_gc_contact(self.account, room_jid, nick)
		# we create a Contact instance
		c2 = gajim.contacts.contact_from_gc_contact(c)
		if gajim.interface.instances[self.account]['infos'].has_key(c2.jid):
			gajim.interface.instances[self.account]['infos'][c2.jid].window.present()
		else:
			gajim.interface.instances[self.account]['infos'][c2.jid] = \
				vcard.VcardWindow(c2, self.account, False)

def on_information_button_clicked(self, widget):
		(model, iter) = self.result_treeview.get_selection().get_selected()
		if not iter:
			return
		jid = model[iter][self.jid_column]
		if gajim.interface.instances[self.account]['infos'].has_key(jid):
			gajim.interface.instances[self.account]['infos'][jid].window.present()
		else:
			contact = gajim.contacts.create_contact(jid = jid, name='', groups=[],
				show='', status='', sub='', ask='', resource='', priority=0,
				keyID='', our_chatstate=None, chatstate=None)
			gajim.interface.instances[self.account]['infos'][jid] = \
				vcard.VcardWindow(contact, self.account)

def on_info(self, widget, contact, account):
		'''Call vcard_information_window class to display contact's information'''
		info = gajim.interface.instances[account]['infos']
		if info.has_key(contact.jid):
			info[contact.jid].window.present()
		else:
			info[contact.jid] = vcard.VcardWindow(contact, account)

def on_info(self, widget, contact, account):
		'''Call vcard_information_window class to display contact's information'''
		info = gajim.interface.instances[account]['infos']
		if info.has_key(contact.jid):
			info[contact.jid].window.present()
		else:
			info[contact.jid] = vcard.VcardWindow(contact, account)

def on_info(self, widget, nick):
		'''Call vcard_information_window class to display user's information'''
		c = gajim.contacts.get_gc_contact(self.account, self.room_jid, nick)
		c2 = gajim.contacts.contact_from_gc_contact(c)
		if gajim.interface.instances[self.account]['infos'].has_key(c2.jid):
			gajim.interface.instances[self.account]['infos'][c2.jid].window.\
				present()
		else:
			gajim.interface.instances[self.account]['infos'][c2.jid] = \
				vcard.VcardWindow(c2, self.account, c)

'''Call vcard_information_window class to display user's information'''
		c = gajim.contacts.get_gc_contact(self.account, room_jid, nick)
		if c.jid and c.resource:
			# on GC, we know resource only if we're mod and up
			jid = c.jid
			fjid = c.jid + '/' + c.resource
		else:
			fjid = gajim.construct_fjid(room_jid, nick)
			jid = fjid
		if gajim.interface.instances[self.account]['infos'].has_key(jid):
			gajim.interface.instances[self.account]['infos'][jid].window.present()
		else:
			# we copy contact because c.jid must contain the fakeJid for vcard
			c2 = gajim.contacts.contact_from_gc_contact(c)
			gajim.interface.instances[self.account]['infos'][jid] = \
				vcard.VcardWindow(c2, self.account, False)

def on_info(self, widget, contact, account):
		'''Call vcard_information_window class to display contact's information'''
		info = gajim.interface.instances[account]['infos']
		if info.has_key(contact.jid):
			info[contact.jid].window.present()
		else:
			info[contact.jid] = vcard.VcardWindow(contact, account)