From 8efed3bc93a15fc715fd4f3cca50f44685872b5e Mon Sep 17 00:00:00 2001
From: Jonas Schnelli <dev@jonasschnelli.ch>
Date: Thu, 17 Mar 2016 17:54:54 +0100
Subject: [Qt] Support for abandoned/abandoning transactions

---
 src/qt/transactionview.cpp | 33 +++++++++++++++++++++++++++++++--
 1 file changed, 31 insertions(+), 2 deletions(-)

(limited to 'src/qt/transactionview.cpp')

diff --git a/src/qt/transactionview.cpp b/src/qt/transactionview.cpp
index a4d4c7a35f..a352228c36 100644
--- a/src/qt/transactionview.cpp
+++ b/src/qt/transactionview.cpp
@@ -37,7 +37,7 @@
 
 TransactionView::TransactionView(const PlatformStyle *platformStyle, QWidget *parent) :
     QWidget(parent), model(0), transactionProxyModel(0),
-    transactionView(0)
+    transactionView(0), abandonAction(0)
 {
     // Build filter row
     setContentsMargins(0,0,0,0);
@@ -137,6 +137,7 @@ TransactionView::TransactionView(const PlatformStyle *platformStyle, QWidget *pa
     transactionView = view;
 
     // Actions
+    abandonAction = new QAction(tr("Abandon transaction"), this);
     QAction *copyAddressAction = new QAction(tr("Copy address"), this);
     QAction *copyLabelAction = new QAction(tr("Copy label"), this);
     QAction *copyAmountAction = new QAction(tr("Copy amount"), this);
@@ -153,8 +154,10 @@ TransactionView::TransactionView(const PlatformStyle *platformStyle, QWidget *pa
     contextMenu->addAction(copyTxIDAction);
     contextMenu->addAction(copyTxHexAction);
     contextMenu->addAction(copyTxPlainText);
-    contextMenu->addAction(editLabelAction);
     contextMenu->addAction(showDetailsAction);
+    contextMenu->addSeparator();
+    contextMenu->addAction(abandonAction);
+    contextMenu->addAction(editLabelAction);
 
     mapperThirdPartyTxUrls = new QSignalMapper(this);
 
@@ -170,6 +173,7 @@ TransactionView::TransactionView(const PlatformStyle *platformStyle, QWidget *pa
     connect(view, SIGNAL(doubleClicked(QModelIndex)), this, SIGNAL(doubleClicked(QModelIndex)));
     connect(view, SIGNAL(customContextMenuRequested(QPoint)), this, SLOT(contextualMenu(QPoint)));
 
+    connect(abandonAction, SIGNAL(triggered()), this, SLOT(abandonTx()));
     connect(copyAddressAction, SIGNAL(triggered()), this, SLOT(copyAddress()));
     connect(copyLabelAction, SIGNAL(triggered()), this, SLOT(copyLabel()));
     connect(copyAmountAction, SIGNAL(triggered()), this, SLOT(copyAmount()));
@@ -360,12 +364,37 @@ void TransactionView::exportClicked()
 void TransactionView::contextualMenu(const QPoint &point)
 {
     QModelIndex index = transactionView->indexAt(point);
+    QModelIndexList selection = transactionView->selectionModel()->selectedRows(0);
+
+    // check if transaction can be abandoned, disable context menu action in case it doesn't
+    uint256 hash;
+    hash.SetHex(selection.at(0).data(TransactionTableModel::TxHashRole).toString().toStdString());
+    abandonAction->setEnabled(model->transactionCanBeAbandoned(hash));
+
     if(index.isValid())
     {
         contextMenu->exec(QCursor::pos());
     }
 }
 
+void TransactionView::abandonTx()
+{
+    if(!transactionView || !transactionView->selectionModel())
+        return;
+    QModelIndexList selection = transactionView->selectionModel()->selectedRows(0);
+
+    // get the hash from the TxHashRole (QVariant / QString)
+    uint256 hash;
+    QString hashQStr = selection.at(0).data(TransactionTableModel::TxHashRole).toString();
+    hash.SetHex(hashQStr.toStdString());
+
+    // Abandon the wallet transaction over the walletModel
+    model->abandonTransaction(hash);
+
+    // Update the table
+    model->getTransactionTableModel()->updateTransaction(hashQStr, CT_UPDATED, false);
+}
+
 void TransactionView::copyAddress()
 {
     GUIUtil::copyEntryData(transactionView, 0, TransactionTableModel::AddressRole);
-- 
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