kivy: share with qr code on double tap

gui/kivy/uix/dialogs/qr_dialog.py

@@ -5,6 +5,7 @@ Builder.load_string('''
 <QRDialog@Popup>
     id: popup
     title: ''
+    data: ''
     shaded: False
     AnchorLayout:
         anchor_x: 'center'
@@ -13,6 +14,8 @@ Builder.load_string('''
             size_hint: 1, 1
             QRCodeWidget:
                 id: qr
+            TopLabel:
+                text: root.data
             Widget:
                 size_hint: 1, 0.2
             BoxLayout:

gui/kivy/uix/ui_screens/receive.kv

@@ -35,9 +35,10 @@ ReceiveScreen:
                 width: min(self.height, bl.width)
                 pos_hint: {'center': (.5, .5)}
                 shaded: False
+                foreground_color: (0, 0, 0, 0.5) if self.shaded else (0, 0, 0, 0)
                 on_touch_down:
-                    self.shaded = not self.shaded
-                    self.foreground_color = (0, 0, 0, 0.5) if self.shaded else (0, 0, 0, 0)
+                    touch = args[1]
+                    if self.collide_point(*touch.pos): self.shaded = not self.shaded
             Label:
                 text: root.status
                 opacity: 1 if root.status else 0
@@ -52,7 +53,6 @@ ReceiveScreen:
                         pos: self.pos
                         size: self.size
 
-
         SendReceiveBlueBottom:
             id: blue_bottom
             size_hint: 1, None