add is_final checkbox to bump_fee dialogs

gui/kivy/uix/dialogs/bump_fee_dialog.py

@@ -14,6 +14,7 @@ Builder.load_string('''
     pos_hint: {'top':0.9}
     BoxLayout:
         orientation: 'vertical'
+        padding: '10dp'
 
         GridLayout:
             height: self.minimum_height
@@ -22,7 +23,7 @@ Builder.load_string('''
             spacing: '10dp'
             BoxLabel:
                 id: old_fee
-                text: _('Fee')
+                text: _('Current Fee')
                 value: ''
             BoxLabel:
                 id: new_fee
@@ -31,11 +32,19 @@ Builder.load_string('''
         Label:
             id: tooltip
             text: ''
+            size_hint_y: None
         Slider:
             id: slider
             range: 0, 4
             step: 1
             on_value: root.on_slider(self.value)
+        BoxLayout:
+            orientation: 'horizontal'
+            size_hint: 1, 0.2
+            Label:
+                text: _('Final')
+            CheckBox:
+                id: final_cb
         Widget:
             size_hint: 1, 1
         BoxLayout:
@@ -98,7 +107,8 @@ class BumpFeeDialog(Factory.Popup):
 
     def on_ok(self):
         new_fee = self.get_fee()
-        self.callback(self.init_fee, new_fee)
+        is_final = self.ids.final_cb.active
+        self.callback(self.init_fee, new_fee, is_final)
 
     def on_slider(self, value):
         self.update_text()

gui/kivy/uix/dialogs/tx_dialog.py

@@ -135,7 +135,7 @@ class TxDialog(Factory.Popup):
         d = BumpFeeDialog(self.app, fee, size, self._do_rbf)
         d.open()
 
-    def _do_rbf(self, old_fee, new_fee):
+    def _do_rbf(self, old_fee, new_fee, is_final):
         if new_fee is None:
             return
         delta = new_fee - old_fee
@@ -147,6 +147,8 @@ class TxDialog(Factory.Popup):
         except BaseException as e:
             self.app.show_error(e)
             return
+        if is_final:
+            new_tx.set_sequence(0xffffffff)
         self.tx = new_tx
         self.update()
         self.do_sign()

gui/qt/main_window.py

@@ -2709,9 +2709,12 @@ class ElectrumWindow(QMainWindow, MessageBoxMixin, PrintError):
         e = BTCAmountEdit(self.get_decimal_point)
         e.setAmount(fee *1.5)
         vbox.addWidget(e)
+        cb = QCheckBox(_('Final'))
+        vbox.addWidget(cb)
         vbox.addLayout(Buttons(CancelButton(d), OkButton(d)))
         if not d.exec_():
             return
+        is_final = cb.isChecked()
         new_fee = e.get_amount()
         delta = new_fee - fee
         if delta < 0:
@@ -2722,4 +2725,6 @@ class ElectrumWindow(QMainWindow, MessageBoxMixin, PrintError):
         except BaseException as e:
             self.show_error(e)
             return
+        if is_final:
+            new_tx.set_sequence(0xffffffff)
         self.show_transaction(new_tx)