Namecoin: Generate default label for name transfers.

electrum_nmc/names.py

@@ -95,11 +95,18 @@ def format_name_op(name_op):
         return "\tName Update\n\t\t" + formatted_name + "\n\t\t" + formatted_value
 
 
-def get_default_name_tx_label(tx):
+def get_default_name_tx_label(wallet, tx):
     for addr, v, name_op in tx.get_outputs():
         if name_op is not None:
             # TODO: Handle multiple atomic name ops.
             # TODO: Include "name" field.
+            name_input_is_mine, name_output_is_mine = get_wallet_name_delta(wallet, tx)
+            if not name_input_is_mine and not name_output_is_mine:
+                return None
+            if name_input_is_mine and not name_output_is_mine:
+                return "Name Transfer (Outgoing)"
+            if not name_input_is_mine and name_output_is_mine:
+                return "Name Transfer (Incoming)"
             if name_op["op"] == OP_NAME_NEW:
                 return "Name Pre-Registration"
             if name_op["op"] == OP_NAME_FIRSTUPDATE:
@@ -109,6 +116,22 @@ def get_default_name_tx_label(tx):
     return None
 
 
+def get_wallet_name_delta(wallet, tx):
+    name_input_is_mine = False
+    name_output_is_mine = False
+    for txin in tx.inputs():
+        addr = wallet.get_txin_address(txin)
+        if wallet.is_mine(addr):
+            prev_tx = wallet.transactions.get(txin['prevout_hash'])
+            if prev_tx.get_outputs()[txin['prevout_n']][2] is not None:
+                name_input_is_mine = True
+    for addr, value, name_op in tx.get_outputs():
+        if name_op is not None and wallet.is_mine(addr):
+            name_output_is_mine = True
+
+    return name_input_is_mine, name_output_is_mine
+
+
 from .bitcoin import push_script
 from .transaction import match_decoded, opcodes, script_GetOp
 from .util import bh2u

electrum_nmc/wallet.py

@@ -485,7 +485,7 @@ def get_label(self, tx_hash):
 
     def get_default_label(self, tx_hash):
         # TODO: what happens if a name would have a non-empty default non-name label?
-        name_label = get_default_name_tx_label(self.transactions.get(tx_hash))
+        name_label = get_default_name_tx_label(self, self.transactions.get(tx_hash))
         if name_label is not None:
             return name_label