qt, refactor: Use better QMenu::addAction overloaded function

This overloaded function was introduced in Qt 5.6 and makes code more
concise.

src/qt/addressbookpage.cpp

@@ -112,26 +112,15 @@ AddressBookPage::AddressBookPage(const PlatformStyle *platformStyle, Mode _mode,
         break;
     }
 
-    // Context menu actions
-    QAction* copyAddressAction = new QAction(tr("Copy Address"), this);
-    QAction* copyLabelAction = new QAction(tr("Copy Label"), this);
-    QAction* editAction = new QAction(tr("Edit"), this);
-
     // Build context menu
     contextMenu = new QMenu(this);
-    contextMenu->addAction(copyAddressAction);
+    contextMenu->addAction(tr("Copy Address"), this, &AddressBookPage::on_copyAddress_clicked);
-    contextMenu->addAction(copyLabelAction);
+    contextMenu->addAction(tr("Copy Label"), this, &AddressBookPage::onCopyLabelAction);
-    contextMenu->addAction(editAction);
+    contextMenu->addAction(tr("Edit"), this, &AddressBookPage::onEditAction);
-    if (tab == SendingTab) {
-        QAction* deleteAction = new QAction(tr("Delete"), this);
-        contextMenu->addAction(deleteAction);
-        connect(deleteAction, &QAction::triggered, this, &AddressBookPage::on_deleteAddress_clicked);
-    }
 
-    // Connect signals for context menu actions
+    if (tab == SendingTab) {
-    connect(copyAddressAction, &QAction::triggered, this, &AddressBookPage::on_copyAddress_clicked);
+        contextMenu->addAction(tr("Delete"), this, &AddressBookPage::on_deleteAddress_clicked);
-    connect(copyLabelAction, &QAction::triggered, this, &AddressBookPage::onCopyLabelAction);
+    }
-    connect(editAction, &QAction::triggered, this, &AddressBookPage::onEditAction);
 
     connect(ui->tableView, &QWidget::customContextMenuRequested, this, &AddressBookPage::contextualMenu);
     connect(ui->closeButton, &QPushButton::clicked, this, &QDialog::accept);

src/qt/bitcoingui.cpp

@@ -1468,11 +1468,8 @@ void UnitDisplayStatusBarControl::mousePressEvent(QMouseEvent *event)
 void UnitDisplayStatusBarControl::createContextMenu()
 {
     menu = new QMenu(this);
-    for (const BitcoinUnits::Unit u : BitcoinUnits::availableUnits())
+    for (const BitcoinUnits::Unit u : BitcoinUnits::availableUnits()) {
-    {
+        menu->addAction(BitcoinUnits::longName(u))->setData(QVariant(u));
-        QAction *menuAction = new QAction(QString(BitcoinUnits::longName(u)), this);
-        menuAction->setData(QVariant(u));
-        menu->addAction(menuAction);
     }
     connect(menu, &QMenu::triggered, this, &UnitDisplayStatusBarControl::onMenuSelection);
 }

src/qt/coincontroldialog.cpp

@@ -50,32 +50,16 @@ CoinControlDialog::CoinControlDialog(CCoinControl& coin_control, WalletModel* _m
 {
     ui->setupUi(this);
 
-    // context menu actions
-    QAction *copyAddressAction = new QAction(tr("Copy address"), this);
-    QAction *copyLabelAction = new QAction(tr("Copy label"), this);
-    QAction *copyAmountAction = new QAction(tr("Copy amount"), this);
-             copyTransactionHashAction = new QAction(tr("Copy transaction ID"), this);  // we need to enable/disable this
-             lockAction = new QAction(tr("Lock unspent"), this);                        // we need to enable/disable this
-             unlockAction = new QAction(tr("Unlock unspent"), this);                    // we need to enable/disable this
-
     // context menu
     contextMenu = new QMenu(this);
-    contextMenu->addAction(copyAddressAction);
+    contextMenu->addAction(tr("Copy address"), this, &CoinControlDialog::copyAddress);
-    contextMenu->addAction(copyLabelAction);
+    contextMenu->addAction(tr("Copy label"), this, &CoinControlDialog::copyLabel);
-    contextMenu->addAction(copyAmountAction);
+    contextMenu->addAction(tr("Copy amount"), this, &CoinControlDialog::copyAmount);
-    contextMenu->addAction(copyTransactionHashAction);
+    copyTransactionHashAction = contextMenu->addAction(tr("Copy transaction ID"), this, &CoinControlDialog::copyTransactionHash);
     contextMenu->addSeparator();
-    contextMenu->addAction(lockAction);
+    lockAction = contextMenu->addAction(tr("Lock unspent"), this, &CoinControlDialog::lockCoin);
-    contextMenu->addAction(unlockAction);
+    unlockAction = contextMenu->addAction(tr("Unlock unspent"), this, &CoinControlDialog::unlockCoin);
-
-    // context menu signals
     connect(ui->treeWidget, &QWidget::customContextMenuRequested, this, &CoinControlDialog::showMenu);
-    connect(copyAddressAction, &QAction::triggered, this, &CoinControlDialog::copyAddress);
-    connect(copyLabelAction, &QAction::triggered, this, &CoinControlDialog::copyLabel);
-    connect(copyAmountAction, &QAction::triggered, this, &CoinControlDialog::copyAmount);
-    connect(copyTransactionHashAction, &QAction::triggered, this, &CoinControlDialog::copyTransactionHash);
-    connect(lockAction, &QAction::triggered, this, &CoinControlDialog::lockCoin);
-    connect(unlockAction, &QAction::triggered, this, &CoinControlDialog::unlockCoin);
 
     // clipboard actions
     QAction *clipboardQuantityAction = new QAction(tr("Copy quantity"), this);

src/qt/qrimagewidget.cpp

@@ -27,12 +27,8 @@ QRImageWidget::QRImageWidget(QWidget *parent):
     QLabel(parent), contextMenu(nullptr)
 {
     contextMenu = new QMenu(this);
-    QAction* saveImageAction = new QAction(tr("Save Image..."), this);
+    contextMenu->addAction(tr("Save Image..."), this, &QRImageWidget::saveImage);
-    connect(saveImageAction, &QAction::triggered, this, &QRImageWidget::saveImage);
+    contextMenu->addAction(tr("Copy Image"), this, &QRImageWidget::copyImage);
-    contextMenu->addAction(saveImageAction);
-    QAction* copyImageAction = new QAction(tr("Copy Image"), this);
-    connect(copyImageAction, &QAction::triggered, this, &QRImageWidget::copyImage);
-    contextMenu->addAction(copyImageAction);
 }
 
 bool QRImageWidget::setQR(const QString& data, const QString& text)

src/qt/receivecoinsdialog.cpp

@@ -42,28 +42,14 @@ ReceiveCoinsDialog::ReceiveCoinsDialog(const PlatformStyle *_platformStyle, QWid
         ui->removeRequestButton->setIcon(_platformStyle->SingleColorIcon(":/icons/remove"));
     }
 
-    // context menu actions
-    QAction *copyURIAction = new QAction(tr("Copy URI"), this);
-    QAction* copyAddressAction = new QAction(tr("Copy address"), this);
-    copyLabelAction = new QAction(tr("Copy label"), this);
-    copyMessageAction = new QAction(tr("Copy message"), this);
-    copyAmountAction = new QAction(tr("Copy amount"), this);
-
     // context menu
     contextMenu = new QMenu(this);
-    contextMenu->addAction(copyURIAction);
+    contextMenu->addAction(tr("Copy URI"), this, &ReceiveCoinsDialog::copyURI);
-    contextMenu->addAction(copyAddressAction);
+    contextMenu->addAction(tr("Copy address"), this, &ReceiveCoinsDialog::copyAddress);
-    contextMenu->addAction(copyLabelAction);
+    copyLabelAction = contextMenu->addAction(tr("Copy label"), this, &ReceiveCoinsDialog::copyLabel);
-    contextMenu->addAction(copyMessageAction);
+    copyMessageAction = contextMenu->addAction(tr("Copy message"), this, &ReceiveCoinsDialog::copyMessage);
-    contextMenu->addAction(copyAmountAction);
+    copyAmountAction = contextMenu->addAction(tr("Copy amount"), this, &ReceiveCoinsDialog::copyAmount);
-
-    // context menu signals
     connect(ui->recentRequestsView, &QWidget::customContextMenuRequested, this, &ReceiveCoinsDialog::showMenu);
-    connect(copyURIAction, &QAction::triggered, this, &ReceiveCoinsDialog::copyURI);
-    connect(copyAddressAction, &QAction::triggered, this, &ReceiveCoinsDialog::copyAddress);
-    connect(copyLabelAction, &QAction::triggered, this, &ReceiveCoinsDialog::copyLabel);
-    connect(copyMessageAction, &QAction::triggered, this, &ReceiveCoinsDialog::copyMessage);
-    connect(copyAmountAction, &QAction::triggered, this, &ReceiveCoinsDialog::copyAmount);
 
     connect(ui->clearButton, &QPushButton::clicked, this, &ReceiveCoinsDialog::clear);
 

src/qt/rpcconsole.cpp

@@ -616,29 +616,14 @@ void RPCConsole::setClientModel(ClientModel *model, int bestblock_height, int64_
         ui->peerWidget->setColumnWidth(PeerTableModel::Ping, PING_COLUMN_WIDTH);
         ui->peerWidget->horizontalHeader()->setStretchLastSection(true);
 
-        // create peer table context menu actions
-        QAction* disconnectAction = new QAction(tr("Disconnect"), this);
-        QAction* banAction1h = new QAction(ts.ban_for + " " + tr("1 hour"), this);
-        QAction* banAction24h = new QAction(ts.ban_for + " " + tr("1 day"), this);
-        QAction* banAction7d = new QAction(ts.ban_for + " " + tr("1 week"), this);
-        QAction* banAction365d = new QAction(ts.ban_for + " " + tr("1 year"), this);
-
         // create peer table context menu
         peersTableContextMenu = new QMenu(this);
-        peersTableContextMenu->addAction(disconnectAction);
+        peersTableContextMenu->addAction(tr("Disconnect"), this, &RPCConsole::disconnectSelectedNode);
-        peersTableContextMenu->addAction(banAction1h);
+        peersTableContextMenu->addAction(ts.ban_for + " " + tr("1 hour"), [this] { banSelectedNode(60 * 60); });
-        peersTableContextMenu->addAction(banAction24h);
+        peersTableContextMenu->addAction(ts.ban_for + " " + tr("1 day"), [this] { banSelectedNode(60 * 60 * 24); });
-        peersTableContextMenu->addAction(banAction7d);
+        peersTableContextMenu->addAction(ts.ban_for + " " + tr("1 week"), [this] { banSelectedNode(60 * 60 * 24 * 7); });
-        peersTableContextMenu->addAction(banAction365d);
+        peersTableContextMenu->addAction(ts.ban_for + " " + tr("1 year"), [this] { banSelectedNode(60 * 60 * 24 * 365); });
-
-        connect(banAction1h, &QAction::triggered, [this] { banSelectedNode(60 * 60); });
-        connect(banAction24h, &QAction::triggered, [this] { banSelectedNode(60 * 60 * 24); });
-        connect(banAction7d, &QAction::triggered, [this] { banSelectedNode(60 * 60 * 24 * 7); });
-        connect(banAction365d, &QAction::triggered, [this] { banSelectedNode(60 * 60 * 24 * 365); });
-
-        // peer table context menu signals
         connect(ui->peerWidget, &QTableView::customContextMenuRequested, this, &RPCConsole::showPeersTableContextMenu);
-        connect(disconnectAction, &QAction::triggered, this, &RPCConsole::disconnectSelectedNode);
 
         // peer table signal handling - update peer details when selecting new node
         connect(ui->peerWidget->selectionModel(), &QItemSelectionModel::selectionChanged, this, &RPCConsole::updateDetailWidget);
@@ -657,16 +642,10 @@ void RPCConsole::setClientModel(ClientModel *model, int bestblock_height, int64_
         ui->banlistWidget->setColumnWidth(BanTableModel::Bantime, BANTIME_COLUMN_WIDTH);
         ui->banlistWidget->horizontalHeader()->setStretchLastSection(true);
 
-        // create ban table context menu action
-        QAction* unbanAction = new QAction(tr("Unban"), this);
-
         // create ban table context menu
         banTableContextMenu = new QMenu(this);
-        banTableContextMenu->addAction(unbanAction);
+        banTableContextMenu->addAction(tr("Unban"), this, &RPCConsole::unbanSelectedNode);
-
-        // ban table context menu signals
         connect(ui->banlistWidget, &QTableView::customContextMenuRequested, this, &RPCConsole::showBanTableContextMenu);
-        connect(unbanAction, &QAction::triggered, this, &RPCConsole::unbanSelectedNode);
 
         // ban table signal handling - clear peer details when clicking a peer in the ban table
         connect(ui->banlistWidget, &QTableView::clicked, this, &RPCConsole::clearSelectedNode);

src/qt/transactionview.cpp

@@ -161,32 +161,21 @@ TransactionView::TransactionView(const PlatformStyle *platformStyle, QWidget *pa
         transactionView->horizontalHeader()->setStretchLastSection(true);
     }
 
-    // Actions
-    abandonAction = new QAction(tr("Abandon transaction"), this);
-    bumpFeeAction = new QAction(tr("Increase transaction fee"), this);
-    bumpFeeAction->setObjectName("bumpFeeAction");
-    copyAddressAction = new QAction(tr("Copy address"), this);
-    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 *copyTxPlainText = new QAction(tr("Copy full transaction details"), this);
-    QAction *editLabelAction = new QAction(tr("Edit address label"), this);
-    QAction *showDetailsAction = new QAction(tr("Show transaction details"), this);
-
     contextMenu = new QMenu(this);
     contextMenu->setObjectName("contextMenu");
-    contextMenu->addAction(copyAddressAction);
+    copyAddressAction = contextMenu->addAction(tr("Copy address"), this, &TransactionView::copyAddress);
-    contextMenu->addAction(copyLabelAction);
+    copyLabelAction = contextMenu->addAction(tr("Copy label"), this, &TransactionView::copyLabel);
-    contextMenu->addAction(copyAmountAction);
+    contextMenu->addAction(tr("Copy amount"), this, &TransactionView::copyAmount);
-    contextMenu->addAction(copyTxIDAction);
+    contextMenu->addAction(tr("Copy transaction ID"), this, &TransactionView::copyTxID);
-    contextMenu->addAction(copyTxHexAction);
+    contextMenu->addAction(tr("Copy raw transaction"), this, &TransactionView::copyTxHex);
-    contextMenu->addAction(copyTxPlainText);
+    contextMenu->addAction(tr("Copy full transaction details"), this, &TransactionView::copyTxPlainText);
-    contextMenu->addAction(showDetailsAction);
+    contextMenu->addAction(tr("Show transaction details"), this, &TransactionView::showDetails);
     contextMenu->addSeparator();
-    contextMenu->addAction(bumpFeeAction);
+    bumpFeeAction = contextMenu->addAction(tr("Increase transaction fee"));
-    contextMenu->addAction(abandonAction);
+    GUIUtil::ExceptionSafeConnect(bumpFeeAction, &QAction::triggered, this, &TransactionView::bumpFee);
-    contextMenu->addAction(editLabelAction);
+    bumpFeeAction->setObjectName("bumpFeeAction");
+    abandonAction = contextMenu->addAction(tr("Abandon transaction"), this, &TransactionView::abandonTx);
+    contextMenu->addAction(tr("Edit address label"), this, &TransactionView::editLabel);
 
     connect(dateWidget, static_cast<void (QComboBox::*)(int)>(&QComboBox::activated), this, &TransactionView::chooseDate);
     connect(typeWidget, static_cast<void (QComboBox::*)(int)>(&QComboBox::activated), this, &TransactionView::chooseType);
@@ -199,16 +188,6 @@ TransactionView::TransactionView(const PlatformStyle *platformStyle, QWidget *pa
     connect(transactionView, &QTableView::doubleClicked, this, &TransactionView::doubleClicked);
     connect(transactionView, &QTableView::customContextMenuRequested, this, &TransactionView::contextualMenu);
 
-    GUIUtil::ExceptionSafeConnect(bumpFeeAction, &QAction::triggered, this, &TransactionView::bumpFee);
-    connect(abandonAction, &QAction::triggered, this, &TransactionView::abandonTx);
-    connect(copyAddressAction, &QAction::triggered, this, &TransactionView::copyAddress);
-    connect(copyLabelAction, &QAction::triggered, this, &TransactionView::copyLabel);
-    connect(copyAmountAction, &QAction::triggered, this, &TransactionView::copyAmount);
-    connect(copyTxIDAction, &QAction::triggered, this, &TransactionView::copyTxID);
-    connect(copyTxHexAction, &QAction::triggered, this, &TransactionView::copyTxHex);
-    connect(copyTxPlainText, &QAction::triggered, this, &TransactionView::copyTxPlainText);
-    connect(editLabelAction, &QAction::triggered, this, &TransactionView::editLabel);
-    connect(showDetailsAction, &QAction::triggered, this, &TransactionView::showDetails);
     // Double-clicking on a transaction on the transaction history page shows details
     connect(this, &TransactionView::doubleClicked, this, &TransactionView::showDetails);
     // Highlight transaction after fee bump