kivy: improve ref label and QR codes

gui/kivy/main.kv

@@ -127,12 +127,15 @@
 
 <RefLabel@TopLabel>
     font_size: '6pt'
-    ref_text: ''
-    text: self.ref_text
+    name: ''
+    data: ''
+    text: self.data
+    touched: False
     padding: '10dp', '10dp'
     on_touch_down:
         touch = args[1]
-        if self.collide_point(*touch.pos): app.on_ref_label(self.ref_text, touch)
+        if self.collide_point(*touch.pos): app.on_ref_label(self, touch)
+        else: self.touched = False
     canvas.before:
         Color:
             rgb: .3, .3, .3
@@ -141,9 +144,8 @@
             pos: self.pos
 
 <TxHashLabel@RefLabel>
-    tx_hash: ''
-    ref_text: self.tx_hash
-    text: ' '.join(map(''.join, zip(*[iter(self.tx_hash)]*4))) if self.tx_hash else ''
+    data: ''
+    text: ' '.join(map(''.join, zip(*[iter(self.data)]*4))) if self.data else ''
 
 <InfoBubble>
     size_hint: None, None

gui/kivy/main_window.py

@@ -299,9 +299,9 @@ class ElectrumWindow(App):
         popup.on_open = lambda: popup.ids.output_list.update(req.get('outputs', []))
         popup.open()
 
-    def qr_dialog(self, title, data):
+    def qr_dialog(self, title, data, show_text=False):
         from uix.dialogs.qr_dialog import QRDialog
-        popup = QRDialog(title, data)
+        popup = QRDialog(title, data, show_text)
         popup.open()
 
     def scan_qr(self, on_complete):
@@ -600,12 +600,14 @@ class ElectrumWindow(App):
         self._orientation = 'landscape' if width > height else 'portrait'
         self._ui_mode = 'tablet' if min(width, height) > inch(3.51) else 'phone'
 
-    def on_ref_label(self, text, touch):
-        if touch.is_double_tap:
-            self.qr_dialog(_('Share with QR Code'), text)
+    def on_ref_label(self, label, touch):
+        if label.touched:
+            label.touched = False
+            self.qr_dialog(label.name, label.data, True)
         else:
-            self._clipboard.copy(text)
-            self.show_info(_('Text copied to clipboard'))
+            label.touched = True
+            self._clipboard.copy(label.data)
+            Clock.schedule_once(lambda dt: self.show_info(_('Text copied to clipboard.\nTap again to display it as QR code.')))
 
     def set_send(self, address, amount, label, message):
         self.send_payment(address, amount=amount, label=label, message=message)

gui/kivy/uix/dialogs/qr_dialog.py

@@ -7,15 +7,18 @@ Builder.load_string('''
     title: ''
     data: ''
     shaded: False
+    show_text: False
     AnchorLayout:
         anchor_x: 'center'
         BoxLayout:
             orientation: 'vertical'
             size_hint: 1, 1
+            padding: '10dp'
+            spacing: '10dp'
             QRCodeWidget:
                 id: qr
             TopLabel:
-                text: root.data
+                text: root.data if root.show_text else ''
             Widget:
                 size_hint: 1, 0.2
             BoxLayout:
@@ -33,10 +36,11 @@ Builder.load_string('''
 ''')
 
 class QRDialog(Factory.Popup):
-    def __init__(self, title, data):
+    def __init__(self, title, data, show_text):
         Factory.Popup.__init__(self)
         self.title = title
         self.data = data
+        self.show_text = show_text
 
     def on_open(self):
         self.ids.qr.set_data(self.data)

gui/kivy/uix/dialogs/tx_dialog.py

@@ -62,8 +62,8 @@ Builder.load_string('''
                 TopLabel:
                     text: _('Transaction ID') + ':' if root.tx_hash else ''
                 TxHashLabel:
-                    tx_hash: root.tx_hash
-
+                    data: root.tx_hash
+                    name: _('Transaction ID')
         Widget:
             size_hint: 1, 0.1
 

gui/kivy/uix/ui_screens/invoice.kv

@@ -53,8 +53,8 @@ Popup:
                 TopLabel:
                     text: _('Transaction ID') if popup.tx_hash else ''
                 TxHashLabel:
-                    tx_hash: popup.tx_hash
-
+                    data: popup.tx_hash
+                    name: _('Transaction ID')
         Widget:
             size_hint: 1, 0.1
 

gui/kivy/uix/ui_screens/status.kv

@@ -51,8 +51,8 @@ Popup:
                 TopLabel:
                     text: _('Master Public Key')
                 RefLabel:
-                    ref_text: app.wallet.get_master_public_key()
-
+                    data: app.wallet.get_master_public_key()
+                    name: _('Master Public Key')
                 TopLabel:
                     text: ''
                     id: seed_label