qml: show channelbackups in channel list,

add channelbackups support in qechanneldetails.py,
only request-fclose option in CloseChannelDialog

electrum/gui/qml/components/ChannelDetails.qml

@@ -271,6 +271,7 @@ Pane {
 
         RowLayout {
             Layout.fillWidth: true
+            visible: channeldetails.isOpen
 
             FlatButton {
                 Layout.fillWidth: true

electrum/gui/qml/components/CloseChannelDialog.qml

@@ -121,7 +121,7 @@ ElDialog {
                 RadioButton {
                     ButtonGroup.group: closetypegroup
                     property string closetype: 'local_force'
-                    enabled: !closing && channeldetails.canForceClose
+                    enabled: !closing && channeldetails.canForceClose && !channeldetails.isBackup
                     text: qsTr('Local Force-close')
                 }
             }

electrum/gui/qml/components/controls/ChannelDelegate.qml

@@ -36,7 +36,11 @@ ItemDelegate {
 
         Image {
             id: walleticon
-            source: model.is_trampoline ? '../../../icons/kangaroo.png' : '../../../icons/lightning.png'
+            source: model.is_backup
+                        ? '../../../icons/nocloud.png'
+                        : model.is_trampoline
+                            ? '../../../icons/kangaroo.png'
+                            : '../../../icons/lightning.png'
             fillMode: Image.PreserveAspectFit
             Layout.rowSpan: 3
             Layout.preferredWidth: constants.iconSizeLarge

electrum/gui/qml/qechanneldetails.py

@@ -67,9 +67,8 @@ class QEChannelDetails(QObject, QtEventListener):
             self.channelidChanged.emit()
 
     def load(self):
-        lnchannels = self._wallet.wallet.lnworker.channels
+        lnchannels = self._wallet.wallet.lnworker.get_channel_objects()
         for channel in lnchannels.values():
-            #self._logger.debug('%s == %s ?' % (self._channelid, channel.channel_id))
             if self._channelid == channel.channel_id.hex():
                 self._channel = channel
                 self.channelChanged.emit()
@@ -94,6 +93,8 @@ class QEChannelDetails(QObject, QtEventListener):
 
     @pyqtProperty(str, notify=channelChanged)
     def initiator(self):
+        if self._channel.is_backup():
+            return ''
         return 'Local' if self._channel.constraints.is_initiator else 'Remote'
 
     @pyqtProperty(QEAmount, notify=channelChanged)
@@ -103,12 +104,18 @@ class QEChannelDetails(QObject, QtEventListener):
 
     @pyqtProperty(QEAmount, notify=channelChanged)
     def canSend(self):
-        self._can_send = QEAmount(amount_sat=self._channel.available_to_spend(LOCAL)/1000)
+        if self._channel.is_backup():
+            self._can_send = QEAmount()
+        else:
+            self._can_send = QEAmount(amount_sat=self._channel.available_to_spend(LOCAL)/1000)
         return self._can_send
 
     @pyqtProperty(QEAmount, notify=channelChanged)
     def canReceive(self):
-        self._can_receive = QEAmount(amount_sat=self._channel.available_to_spend(REMOTE)/1000)
+        if self._channel.is_backup():
+            self._can_receive = QEAmount()
+        else:
+            self._can_receive = QEAmount(amount_sat=self._channel.available_to_spend(REMOTE)/1000)
         return self._can_receive
 
     @pyqtProperty(bool, notify=channelChanged)
@@ -121,7 +128,7 @@ class QEChannelDetails(QObject, QtEventListener):
 
     @pyqtProperty(str, notify=channelChanged)
     def channelType(self):
-        return self._channel.storage['channel_type'].name_minimal
+        return self._channel.storage['channel_type'].name_minimal if 'channel_type' in self._channel.storage else 'Channel Backup'
 
     @pyqtProperty(bool, notify=channelChanged)
     def isOpen(self):
@@ -137,7 +144,7 @@ class QEChannelDetails(QObject, QtEventListener):
 
     @pyqtProperty(bool, notify=channelChanged)
     def canForceClose(self):
-        return ChanCloseOption.LOCAL_FCLOSE in self._channel.get_close_options()
+        return any([o in [ChanCloseOption.LOCAL_FCLOSE, ChanCloseOption.REQUEST_REMOTE_FCLOSE] for o in self._channel.get_close_options()])
 
     @pyqtProperty(bool, notify=channelChanged)
     def canDelete(self):
@@ -147,6 +154,10 @@ class QEChannelDetails(QObject, QtEventListener):
     def message_force_close(self, notify=channelChanged):
         return _(messages.MSG_REQUEST_FORCE_CLOSE)
 
+    @pyqtProperty(bool, notify=channelChanged)
+    def isBackup(self):
+        return self._channel.is_backup()
+
     @pyqtSlot()
     def freezeForSending(self):
         lnworker = self._channel.lnworker

electrum/gui/qml/qechannellistmodel.py

@@ -15,7 +15,8 @@ class QEChannelListModel(QAbstractListModel, QtEventListener):
     # define listmodel rolemap
     _ROLE_NAMES=('cid','state','state_code','initiator','capacity','can_send',
                  'can_receive','l_csv_delay','r_csv_delay','send_frozen','receive_frozen',
-                 'type','node_id','node_alias','short_cid','funding_tx','is_trampoline')
+                 'type','node_id','node_alias','short_cid','funding_tx','is_trampoline',
+                 'is_backup')
     _ROLE_KEYS = range(Qt.UserRole, Qt.UserRole + len(_ROLE_NAMES))
     _ROLE_MAP  = dict(zip(_ROLE_KEYS, [bytearray(x.encode()) for x in _ROLE_NAMES]))
     _ROLE_RMAP = dict(zip(_ROLE_NAMES, _ROLE_KEYS))
@@ -72,10 +73,15 @@ class QEChannelListModel(QAbstractListModel, QtEventListener):
         item['short_cid'] = lnc.short_id_for_GUI()
         item['state'] = lnc.get_state_for_GUI()
         item['state_code'] = int(lnc.get_state())
-        item['capacity'] = QEAmount(amount_sat=lnc.get_capacity())
+        item['is_backup'] = lnc.is_backup()
-        item['can_send'] = QEAmount(amount_msat=lnc.available_to_spend(LOCAL))
-        item['can_receive'] = QEAmount(amount_msat=lnc.available_to_spend(REMOTE))
         item['is_trampoline'] = lnworker.is_trampoline_peer(lnc.node_id)
+        item['capacity'] = QEAmount(amount_sat=lnc.get_capacity())
+        if lnc.is_backup():
+            item['can_send'] = QEAmount()
+            item['can_receive'] = QEAmount()
+        else:
+            item['can_send'] = QEAmount(amount_msat=lnc.available_to_spend(LOCAL))
+            item['can_receive'] = QEAmount(amount_msat=lnc.available_to_spend(REMOTE))
         return item
 
     numOpenChannelsChanged = pyqtSignal()
@@ -94,9 +100,6 @@ class QEChannelListModel(QAbstractListModel, QtEventListener):
 
         lnchannels = self.wallet.lnworker.get_channel_objects()
         for channel in lnchannels.values():
-            if channel.is_backup():
-                # not implemented
-                continue
             item = self.channel_to_model(channel)
             channels.append(item)