def on_orderCancelButton_clicked(self):
selection = self.orderTableWidget.selectedItems()
if not selection:
return
index = self.indexFromOrderStatus()
prevmsg = MM_util.searchlistbyhash(self.listDict[index],
str(selection[4].text()))
conf = None
order = None
if index == 'order':
order = prevmsg
for ver in self.listDict['conf']:
if ver.obj['orderhash'] == order.hash:
conf = ver
elif index == 'conf':
conf = prevmsg
order = MM_util.searchlistbyhash(self.listDict['order'],
conf.obj['orderhash'])
if conf:
for ver in self.listDict['pay']:
if ver.obj['confhash'] == conf.hash:
self.info("We cannot cancel this Order, " + \
"as a Payment has already been sent.")
return
if not self.yorn("Are you sure?"):
return
msgstr = MM_util.createcancel(self.myid.hash, self.btcaddr, \
"buyer", self.listDict['conf'], order)
hash = MM_util.MM_writefile(msgstr)
MM_util.appendindex('cancel', hash)
self.do_sendmsgviabm(vendor.obj['bmaddr'], msgstr)
self.info("Order cancellation message sent to Vendor!")
