add 'view log' action for LN payments in tx history

electrum/gui/qt/history_list.py

@@ -663,6 +663,10 @@ class HistoryList(MyTreeView, AcceptFileDragDrop):
             cc = self.add_copy_menu(menu, idx)
             cc.addAction(_("Payment Hash"), lambda: self.place_text_on_clipboard(tx_item['payment_hash'], title="Payment Hash"))
             cc.addAction(_("Preimage"), lambda: self.place_text_on_clipboard(tx_item['preimage'], title="Preimage"))
+            key = tx_item['payment_hash']
+            log = self.wallet.lnworker.logs.get(key)
+            if log:
+                menu.addAction(_("View log"), lambda: self.parent.invoice_list.show_log(key, log))
             menu.exec_(self.viewport().mapToGlobal(position))
             return
         tx_hash = tx_item['txid']