kivy: disable amount and description buttons if payment request is signed

gui/kivy/uix/screens.py

@@ -204,13 +204,16 @@ class SendScreen(CScreen):
         self.screen.message = ''
         self.screen.address = ''
         self.payment_request = None
+        self.screen.is_pr = False
 
     def set_request(self, pr):
-        self.payment_request = pr
         self.screen.address = pr.get_requestor()
         amount = pr.get_amount()
         self.screen.amount = self.app.format_amount_and_units(amount) if amount else ''
         self.screen.message = pr.get_memo()
+        if pr.is_pr():
+            self.screen.is_pr = True
+            self.payment_request = pr
 
     def do_save(self):
         if not self.screen.address:
@@ -439,13 +442,13 @@ class InvoicesScreen(CScreen):
             msg = _('This screen shows the list of payment requests that have been sent to you. You may also use it to store contact addresses.')
             invoices_list.add_widget(EmptyLabel(text=msg))
 
-
     def do_pay(self, obj):
-        self.app.do_pay(obj)
+        pr = self.app.invoices.get(obj.key)
+        self.app.on_pr(pr)
 
     def do_view(self, obj):
         pr = self.app.invoices.get(obj.key)
-        pr.verify({})
+        pr.verify(self.app.contacts)
         self.app.show_pr_details(pr.get_dict(), obj.status, True)
 
     def do_delete(self, obj):

gui/kivy/uix/ui_screens/send.kv

@@ -11,6 +11,7 @@ SendScreen:
     address: ''
     amount: ''
     message: ''
+    is_pr: False
     BoxLayout
         padding: '12dp', '12dp', '12dp', '12dp'
         spacing: '12dp'
@@ -31,7 +32,7 @@ SendScreen:
                 BlueButton:
                     id: payto_e
                     text: s.address if s.address else _('Recipient')
-                    on_release: app.address_dialog(s)
+                    disabled: True
                     shorten: True
             CardSeparator:
                 opacity: message_selection.opacity
@@ -49,6 +50,7 @@ SendScreen:
                     id: amount_e
                     default_text: _('Amount')
                     text: s.amount if s.amount else _('Amount')
+                    disabled: root.is_pr
                     on_release: Clock.schedule_once(lambda dt: app.amount_dialog(s, True))
             CardSeparator:
                 opacity: message_selection.opacity
@@ -66,6 +68,7 @@ SendScreen:
                 BlueButton:
                     id: description
                     text: s.message if s.message else _('Description')
+                    disabled: root.is_pr
                     on_release: Clock.schedule_once(lambda dt: app.description_dialog(s))
         BoxLayout:
             size_hint: 1, None