kivy: show routing options explicitly

electrum/gui/kivy/uix/dialogs/choice_dialog.py

@@ -10,12 +10,17 @@ Builder.load_string('''
 <ChoiceDialog@Popup>
     id: popup
     title: ''
+    description: ''
     size_hint: 0.8, 0.8
     pos_hint: {'top':0.9}
     BoxLayout:
         orientation: 'vertical'
-        Widget:
-            size_hint: 1, 0.1
+        Label:
+            size_hint: 1, None
+            text: root.description
+            halign: 'left'
+            text_size: self.width, None
+            size: self.texture_size
         ScrollView:
             orientation: 'vertical'
             size_hint: 1, 0.8
@@ -44,8 +49,9 @@ Builder.load_string('''
 
 class ChoiceDialog(Factory.Popup):
 
-    def __init__(self, title, choices, key, callback, keep_choice_order=False):
+    def __init__(self, title, choices, key, callback, *, description='', keep_choice_order=False):
         Factory.Popup.__init__(self)
+        self.description = description
         if keep_choice_order:
             orig_index = {choice: i for (i, choice) in enumerate(choices)}
             sort_key = lambda x: orig_index[x[0]]

electrum/gui/kivy/uix/dialogs/settings.py

@@ -99,12 +99,7 @@ Builder.load_string('''
                     status: _('Trampoline') if not app.use_gossip else _('Gossip')
                     title: _('Lightning Routing') + ': ' + self.status
                     description: _("Use trampoline routing or gossip.")
-                    message:
-                        _('Lightning payments require finding a path through the Lightning Network.')\
-                        + ' ' + ('You may use trampoline routing, or local routing (gossip).')\
-                        + ' ' + ('Downloading the network gossip uses quite some bandwidth and storage, and is not recommended on mobile devices.')\
-                        + ' ' + ('If you use trampoline, you can only open channels with trampoline nodes.')
-                    action: partial(root.boolean_dialog, 'use_gossip', _('Download Gossip'), self.message)
+                    action: partial(root.routing_dialog, self)
                 CardSeparator
                 SettingsItem:
                     status: _('Yes') if app.android_backups else _('No')
@@ -173,6 +168,22 @@ class SettingsDialog(Factory.Popup):
                                              self.app.base_unit, cb, keep_choice_order=True)
         self._unit_dialog.open()
 
+    def routing_dialog(self, item, dt):
+        description = \
+            _('Lightning payments require finding a path through the Lightning Network.')\
+            + ' ' + ('You may use trampoline routing, or local routing (gossip).')\
+            + ' ' + ('Downloading the network gossip uses quite some bandwidth and storage, and is not recommended on mobile devices.')\
+            + ' ' + ('If you use trampoline, you can only open channels with trampoline nodes.')
+        def cb(text):
+            self.app.use_gossip = (text == 'Gossip')
+        dialog = ChoiceDialog(
+            _('Lightning Routing'),
+            ['Trampoline', 'Gossip'],
+            'Gossip' if self.app.use_gossip else 'Trampoline',
+            cb, description=description,
+            keep_choice_order=True)
+        dialog.open()
+
     def coinselect_status(self):
         return coinchooser.get_name(self.app.electrum_config)