history: add option to remove failed tx

src/HistoryWidget.cpp

@@ -90,6 +90,10 @@ void HistoryWidget::showContextMenu(const QPoint &point) {
         menu.addAction("Resend transaction", this, &HistoryWidget::onResendTransaction);
     }
 
+    if (tx->isFailed()) {
+        menu.addAction("Remove from history", this, &HistoryWidget::onRemoveFromHistory);
+    }
+
     menu.addMenu(m_copyMenu);
     menu.addAction("Show details", this, &HistoryWidget::showTxDetails);
     menu.addAction("View on block explorer", this, &HistoryWidget::onViewOnBlockExplorer);
@@ -106,6 +110,16 @@ void HistoryWidget::onResendTransaction() {
     }
 }
 
+void HistoryWidget::onRemoveFromHistory() {
+    auto *tx = ui->history->currentEntry();
+    if (!tx) return;
+
+    auto result = QMessageBox::question(this, "Remove transaction from history", "Are you sure you want to remove this transaction from the history?");
+    if (result == QMessageBox::Yes) {
+        m_wallet->removeFailedTx(tx->hash());
+    }
+}
+
 void HistoryWidget::resetModel()
 {
     // Save view state

src/HistoryWidget.h

@@ -42,6 +42,7 @@ private slots:
     void onViewOnBlockExplorer();
     void setSearchFilter(const QString &filter);
     void onResendTransaction();
+    void onRemoveFromHistory();
     void createTxProof();
 
 private:

src/libwalletqt/Wallet.cpp

@@ -1032,6 +1032,20 @@ bool Wallet::submitTxFile(const QString &fileName) const
     return m_walletImpl->importKeyImages(fileName.toStdString() + "_keyImages");
 }
 
+bool Wallet::removeFailedTx(const QString &txid)
+{
+    crypto::hash txid_;
+    if(!epee::string_tools::hex_to_pod(txid.toStdString(), txid_))
+    {
+        return false;
+    }
+
+    bool r = m_wallet2->remove_failed_tx(txid_);
+    m_history->refresh();
+
+    return r;
+}
+
 // #################### Models ####################
 
 TransactionHistory *Wallet::history() const {

src/libwalletqt/Wallet.h

@@ -345,6 +345,8 @@ public:
     //! Submit a transfer from file
     bool submitTxFile(const QString &fileName) const;
 
+    bool removeFailedTx(const QString &txid);
+
     // ##### Models #####
     TransactionHistory* history() const;
     TransactionHistoryProxyModel* historyModel();