kivy:

- simplify menu
 - add lightning network dialog

electrum/gui/kivy/main.kv

@@ -421,34 +421,40 @@ BoxLayout:
         ActionView:
             id: av
             ActionPrevious:
-                app_icon: 'atlas://electrum/gui/kivy/theming/light/logo'
-                app_icon_width: '100dp'
                 with_previous: False
-                size_hint_x: None
-                on_release: app.popup_dialog('network')
+                size_hint: None, None
+                size: 0, 0
 
             ActionButton:
-                id: action_status
-                important: True
-                size_hint: 1, 1
+                size_hint_x: 0.5
+                text: app.wallet_name
                 bold: True
                 color: 0.7, 0.7, 0.7, 1
-                text: app.wallet_name
                 font_size: '22dp'
-                #minimum_width: '1dp'
-                on_release: app.popup_dialog('status')
+                on_release:
+                    Clock.schedule_once(lambda dt: app.popup_dialog('wallets'), 0.05)
+                    self.state = 'normal'
+
+            ActionButton:
+                size_hint_x: 0.4
+                text: ''
+                opacity:0
 
             ActionOverflow:
                 id: ao
+                size_hint_x: 0.15
                 ActionOvrButton:
                     name: 'about'
                     text: _('About')
-                ActionOvrButton:
-                    name: 'wallets'
-                    text: _('Wallets')
                 ActionOvrButton:
                     name: 'network'
                     text: _('Network')
+                ActionOvrButton:
+                    name: 'lightning'
+                    text: _('Lightning')
+                ActionOvrButton:
+                    name: 'status'
+                    text: _('Wallet Info')
                 ActionOvrButton:
                     name: 'addresses_dialog'
                     text: _('Addresses')
@@ -462,6 +468,7 @@ BoxLayout:
                         # when widget overflow drop down is shown, adjust the width
                         parent = args[1]
                         if parent: ao._dropdown.width = sp(200)
+
     ScreenManager:
         id: manager
         ScreenTabs:

electrum/gui/kivy/main_window.py

@@ -104,6 +104,11 @@ class ElectrumWindow(App):
     is_fiat = BooleanProperty(False)
     blockchain_forkpoint = NumericProperty(0)
 
+    lightning_gossip_num_peers = NumericProperty(0)
+    lightning_gossip_num_nodes = NumericProperty(0)
+    lightning_gossip_num_channels = NumericProperty(0)
+    lightning_gossip_num_queries = NumericProperty(0)
+
     auto_connect = BooleanProperty(False)
     def on_auto_connect(self, instance, x):
         net_params = self.network.get_parameters()
@@ -561,6 +566,9 @@ class ElectrumWindow(App):
             self.network.register_callback(self.on_channel, ['channel'])
             self.network.register_callback(self.on_invoice_status, ['invoice_status'])
             self.network.register_callback(self.on_request_status, ['request_status'])
+            self.network.register_callback(self.on_channel_db, ['channel_db'])
+            self.network.register_callback(self.set_num_peers, ['gossip_peers'])
+            self.network.register_callback(self.set_unknown_channels, ['unknown_channels'])
         # load wallet
         self.load_wallet_by_name(self.electrum_config.get_wallet_path(use_gui_last_wallet=True))
         # URI passed in config
@@ -568,6 +576,15 @@ class ElectrumWindow(App):
         if uri:
             self.set_URI(uri)
 
+    def on_channel_db(self, event, num_nodes, num_channels, num_policies):
+        self.lightning_gossip_num_nodes = num_nodes
+        self.lightning_gossip_num_channels = num_channels
+
+    def set_num_peers(self, event, num_peers):
+        self.lightning_gossip_num_peers = num_peers
+
+    def set_unknown_channels(self, event, unknown):
+        self.lightning_gossip_num_queries = unknown
 
     def get_wallet_path(self):
         if self.wallet:

electrum/gui/kivy/uix/ui_screens/lightning.kv

@@ -0,0 +1,28 @@
+Popup:
+    id: ln
+    title: _('Lightning Network')
+    BoxLayout:
+        orientation: 'vertical'
+        ScrollView:
+            GridLayout:
+                id: scrollviewlayout
+                cols:1
+                size_hint: 1, None
+                height: self.minimum_height
+                padding: '10dp'
+                SettingsItem:
+                    value: _("{} connections.").format(app.lightning_gossip_num_peers) if app.lightning_gossip_num_peers else _("Not connected")
+                    title: _("Gossip") + ': ' + self.value
+                    description: _("Connections with lightning nodes")
+                CardSeparator
+                SettingsItem:
+                    title: _("Nodes") + ': ' + str(app.lightning_gossip_num_nodes)
+                    description: _("Nodes in database.")
+                CardSeparator
+                SettingsItem:
+                    title: _("Channels") + ': ' + str(app.lightning_gossip_num_channels)
+                    description: _("Channels in database.")
+                CardSeparator
+                SettingsItem:
+                    title: _("Pending") + ': ' + str(app.lightning_gossip_num_queries)
+                    description: _("Channel updates to query.")