ui: Add "Copy raw transaction data" to transaction list context menu

Add a way to quickly copy transaction hex.

Primarily useful when manually submitting transactions,
e.g. `-walletbroadcast=0` is set.

src/qt/transactiontablemodel.cpp

@@ -13,6 +13,7 @@
 #include "transactionrecord.h"
 #include "walletmodel.h"
 
+#include "core_io.h"
 #include "main.h"
 #include "sync.h"
 #include "uint256.h"
@@ -220,6 +221,18 @@ public:
         }
         return QString();
     }
+
+    QString getTxHex(TransactionRecord *rec)
+    {
+        LOCK2(cs_main, wallet->cs_wallet);
+        std::map<uint256, CWalletTx>::iterator mi = wallet->mapWallet.find(rec->hash);
+        if(mi != wallet->mapWallet.end())
+        {
+            std::string strHex = EncodeHexTx(static_cast<CTransaction>(mi->second));
+            return QString::fromStdString(strHex);
+        }
+        return QString();
+    }
 };
 
 TransactionTableModel::TransactionTableModel(const PlatformStyle *platformStyle, CWallet* wallet, WalletModel *parent):
@@ -594,6 +607,8 @@ QVariant TransactionTableModel::data(const QModelIndex &index, int role) const
         return rec->getTxID();
     case TxHashRole:
         return QString::fromStdString(rec->hash.ToString());
+    case TxHexRole:
+        return priv->getTxHex(rec);
     case ConfirmedRole:
         return rec->status.countsForBalance;
     case FormattedAmountRole:

src/qt/transactiontablemodel.h

@@ -60,6 +60,8 @@ public:
         TxIDRole,
         /** Transaction hash */
         TxHashRole,
+        /** Transaction data, hex-encoded */
+        TxHexRole,
         /** Is transaction confirmed? */
         ConfirmedRole,
         /** Formatted amount, without brackets when unconfirmed */

src/qt/transactionview.cpp

@@ -141,6 +141,7 @@ TransactionView::TransactionView(const PlatformStyle *platformStyle, QWidget *pa
     QAction *copyLabelAction = new QAction(tr("Copy label"), this);
     QAction *copyAmountAction = new QAction(tr("Copy amount"), this);
     QAction *copyTxIDAction = new QAction(tr("Copy transaction ID"), this);
+    QAction *copyTxHexAction = new QAction(tr("Copy raw transaction"), this);
     QAction *editLabelAction = new QAction(tr("Edit label"), this);
     QAction *showDetailsAction = new QAction(tr("Show transaction details"), this);
 
@@ -149,6 +150,7 @@ TransactionView::TransactionView(const PlatformStyle *platformStyle, QWidget *pa
     contextMenu->addAction(copyLabelAction);
     contextMenu->addAction(copyAmountAction);
     contextMenu->addAction(copyTxIDAction);
+    contextMenu->addAction(copyTxHexAction);
     contextMenu->addAction(editLabelAction);
     contextMenu->addAction(showDetailsAction);
 
@@ -170,6 +172,7 @@ TransactionView::TransactionView(const PlatformStyle *platformStyle, QWidget *pa
     connect(copyLabelAction, SIGNAL(triggered()), this, SLOT(copyLabel()));
     connect(copyAmountAction, SIGNAL(triggered()), this, SLOT(copyAmount()));
     connect(copyTxIDAction, SIGNAL(triggered()), this, SLOT(copyTxID()));
+    connect(copyTxHexAction, SIGNAL(triggered()), this, SLOT(copyTxHex()));
     connect(editLabelAction, SIGNAL(triggered()), this, SLOT(editLabel()));
     connect(showDetailsAction, SIGNAL(triggered()), this, SLOT(showDetails()));
 }
@@ -380,6 +383,11 @@ void TransactionView::copyTxID()
     GUIUtil::copyEntryData(transactionView, 0, TransactionTableModel::TxIDRole);
 }
 
+void TransactionView::copyTxHex()
+{
+    GUIUtil::copyEntryData(transactionView, 0, TransactionTableModel::TxHexRole);
+}
+
 void TransactionView::editLabel()
 {
     if(!transactionView->selectionModel() ||!model)

src/qt/transactionview.h

@@ -93,6 +93,7 @@ private Q_SLOTS:
     void copyLabel();
     void copyAmount();
     void copyTxID();
+    void copyTxHex();
     void openThirdPartyTxUrl(QString url);
     void updateWatchOnlyColumn(bool fHaveWatchOnly);