Preparation for moving the set of verified and unverified txs to the wallet.

The verifier will retain responsibility for verification, but will no longer
hold the transaction sets itself.

Change requires_fee to take a wallet.
Add new function add_unverified_tx()
Move get_confirmations() to the wallet from the verifier.

gui/gtk.py

@@ -813,7 +813,7 @@ class ElectrumWindow:
             self.show_message(str(e))
             return
 
-        if tx.requires_fee(self.wallet.verifier) and fee < MIN_RELAY_TX_FEE:
+        if tx.requires_fee(self.wallet) and fee < MIN_RELAY_TX_FEE:
             self.show_message( "This transaction requires a higher fee, or it will not be propagated by the network." )
             return
 
@@ -1200,7 +1200,7 @@ class ElectrumWindow:
         tx = self.wallet.transactions.get(tx_hash)
         tx.deserialize()
         is_relevant, is_mine, v, fee = self.wallet.get_wallet_delta(tx)
-        conf, timestamp = self.wallet.verifier.get_confirmations(tx_hash)
+        conf, timestamp = self.wallet.get_confirmations(tx_hash)
 
         if timestamp:
             time_str = datetime.datetime.fromtimestamp(timestamp).isoformat(' ')[:-3]

gui/qt/main_window.py

@@ -1121,7 +1121,7 @@ class ElectrumWindow(QMainWindow):
             self.show_message(str(e))
             return
 
-        if tx.get_fee() < MIN_RELAY_TX_FEE and tx.requires_fee(self.wallet.verifier):
+        if tx.get_fee() < MIN_RELAY_TX_FEE and tx.requires_fee(self.wallet):
             QMessageBox.warning(self, _('Error'), _("This transaction requires a higher fee, or it will not be propagated by the network."), _('OK'))
             return
 

gui/qt/transaction_dialog.py

@@ -149,7 +149,7 @@ class TxDialog(QDialog):
             status = _("Signed")
 
             if tx_hash in self.wallet.transactions.keys():
-                conf, timestamp = self.wallet.verifier.get_confirmations(tx_hash)
+                conf, timestamp = self.wallet.get_confirmations(tx_hash)
                 if timestamp:
                     time_str = datetime.datetime.fromtimestamp(timestamp).isoformat(' ')[:-3]
                 else: