URI: 
       tqt tx dialog: allow blanking feerate - electrum - Electrum Bitcoin wallet
  HTML git clone https://git.parazyd.org/electrum
   DIR Log
   DIR Files
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   DIR Submodules
       ---
   DIR commit 710e9621b5ec2257d92538ae26dd33ff48aa86da
   DIR parent 13b858ab26f3eda6e89330ec9dfe707eecc95d62
  HTML Author: SomberNight <somber.night@protonmail.com>
       Date:   Tue, 19 Nov 2019 20:13:16 +0100
       
       qt tx dialog: allow blanking feerate
       
       Previously it was impossible to rm the last character in feerate_edit.
       e.g. if you held down "backspace", we would keep refilling the field as soon
       as it became empty.
       
       Diffstat:
         M electrum/gui/qt/transaction_dialog… |       7 +++++--
       
       1 file changed, 5 insertions(+), 2 deletions(-)
       ---
   DIR diff --git a/electrum/gui/qt/transaction_dialog.py b/electrum/gui/qt/transaction_dialog.py
       t@@ -579,6 +579,9 @@ class BaseTxDialog(QDialog, MessageBoxMixin):
            def on_finalize(self):
                pass  # overridden in subclass
        
       +    def update_fee_fields(self):
       +        pass  # overridden in subclass
       +
        
        class TxDetailLabel(QLabel):
            def __init__(self, *, word_wrap=None):
       t@@ -752,7 +755,7 @@ class PreviewTxDialog(BaseTxDialog, TxEditor):
                    displayed_feerate = self.feerate_e.get_amount()
                    if displayed_feerate is not None:
                        displayed_feerate = quantize_feerate(displayed_feerate)
       -            else:
       +            elif self.fee_slider.is_active():
                        # fallback to actual fee
                        displayed_feerate = quantize_feerate(fee / size) if fee is not None else None
                        self.feerate_e.setAmount(displayed_feerate)
       t@@ -770,7 +773,7 @@ class PreviewTxDialog(BaseTxDialog, TxEditor):
                    self.feerate_e.setAmount(displayed_feerate)
        
                # show/hide fee rounding icon
       -        feerounding = (fee - displayed_fee) if fee else 0
       +        feerounding = (fee - displayed_fee) if (fee and displayed_fee is not None) else 0
                self.set_feerounding_text(int(feerounding))
                self.feerounding_icon.setToolTip(self.feerounding_text)
                self.feerounding_icon.setVisible(abs(feerounding) >= 1)