update channel listmodel when channel opened

electrum/gui/qml/components/OpenChannel.qml

@@ -176,9 +176,11 @@ Pane {
         onChannelOpenSuccess: {
             var message = 'success!'
             if (!has_backup)
-                message = message = ' (but no backup. TODO: show QR)'
+                message = message + ' (but no backup. TODO: show QR)'
             var dialog = app.messageDialog.createObject(root, { 'text': message })
             dialog.open()
+            channelopener.wallet.channelModel.new_channel(cid)
+            app.stack.pop()
         }
     }
 

electrum/gui/qml/qechannellistmodel.py

@@ -129,3 +129,15 @@ class QEChannelListModel(QAbstractListModel):
 
         mi = self.createIndex(modelindex, 0)
         self.dataChanged.emit(mi, mi, self._ROLE_KEYS)
+
+    @pyqtSlot(str)
+    def new_channel(self, cid):
+        lnchannels = self.wallet.lnworker.channels
+        for channel in lnchannels.values():
+            self._logger.debug(repr(channel))
+            if cid == channel.channel_id.hex():
+                item = self.channel_to_model(channel)
+                self._logger.debug(item)
+                self.beginInsertRows(QModelIndex(), 0, 0)
+                self.channels.insert(0,item)
+                self.endInsertRows()

electrum/gui/qml/qechannelopener.py

@@ -25,7 +25,7 @@ class QEChannelOpener(QObject):
     validationError = pyqtSignal([str,str], arguments=['code','message'])
     conflictingBackup = pyqtSignal([str], arguments=['message'])
     channelOpenError = pyqtSignal([str], arguments=['message'])
-    channelOpenSuccess = pyqtSignal([bool], arguments=['has_backup'])
+    channelOpenSuccess = pyqtSignal([str,bool], arguments=['cid','has_backup'])
 
     dataChanged = pyqtSignal() # generic notify signal
 
@@ -160,7 +160,7 @@ class QEChannelOpener(QObject):
             self.channelOpenError.emit(_('Problem opening channel: ') + '\n' + repr(e))
             return
 
-        self.channelOpenSuccess.emit(chan.has_onchain_backup())
+        self.channelOpenSuccess.emit(chan.channel_id.hex(), chan.has_onchain_backup())
 
         # TODO: it would be nice to show this before broadcasting
         #if chan.has_onchain_backup():