1 files changed, 50 insertions, 5 deletions
diff --git a/src/qt/sendcoinsdialog.cpp b/src/qt/sendcoinsdialog.cpp
index 780a6c9709..6d50be56ec 100644
--- a/src/qt/sendcoinsdialog.cpp
+++ b/src/qt/sendcoinsdialog.cpp
@@ -26,6 +26,9 @@
 #include <QScrollBar>
 #include <QSettings>
 #include <QTextDocument>
+#include <QTimer>
+
+#define SEND_CONFIRM_DELAY   3
 
 SendCoinsDialog::SendCoinsDialog(const PlatformStyle *platformStyle, QWidget *parent) :
     QDialog(parent),
@@ -121,7 +124,7 @@ void SendCoinsDialog::setClientModel(ClientModel *clientModel)
     this->clientModel = clientModel;
 
     if (clientModel) {
-        connect(clientModel, SIGNAL(numBlocksChanged(int,QDateTime,double)), this, SLOT(updateSmartFeeLabel()));
+        connect(clientModel, SIGNAL(numBlocksChanged(int,QDateTime,double,bool)), this, SLOT(updateSmartFeeLabel()));
     }
 }
 
@@ -311,10 +314,10 @@ void SendCoinsDialog::on_sendButton_clicked()
     questionString.append(QString("<span style='font-size:10pt;font-weight:normal;'><br />(=%2)</span>")
         .arg(alternativeUnits.join(" " + tr("or") + "<br />")));
 
-    QMessageBox::StandardButton retval = QMessageBox::question(this, tr("Confirm send coins"),
-        questionString.arg(formatted.join("<br />")),
-        QMessageBox::Yes | QMessageBox::Cancel,
-        QMessageBox::Cancel);
+    SendConfirmationDialog confirmationDialog(tr("Confirm send coins"),
+        questionString.arg(formatted.join("<br />")), SEND_CONFIRM_DELAY, this);
+    confirmationDialog.exec();
+    QMessageBox::StandardButton retval = (QMessageBox::StandardButton)confirmationDialog.result();
 
     if(retval != QMessageBox::Yes)
     {
@@ -828,3 +831,45 @@ void SendCoinsDialog::coinControlUpdateLabels()
         ui->labelCoinControlInsuffFunds->hide();
     }
 }
+
+SendConfirmationDialog::SendConfirmationDialog(const QString &title, const QString &text, int secDelay,
+    QWidget *parent) :
+    QMessageBox(QMessageBox::Question, title, text, QMessageBox::Yes | QMessageBox::Cancel, parent), secDelay(secDelay)
+{
+    setDefaultButton(QMessageBox::Cancel);
+    yesButton = button(QMessageBox::Yes);
+    updateYesButton();
+    connect(&countDownTimer, SIGNAL(timeout()), this, SLOT(countDown()));
+}
+
+int SendConfirmationDialog::exec()
+{
+    updateYesButton();
+    countDownTimer.start(1000);
+    return QMessageBox::exec();
+}
+
+void SendConfirmationDialog::countDown()
+{
+    secDelay--;
+    updateYesButton();
+
+    if(secDelay <= 0)
+    {
+        countDownTimer.stop();
+    }
+}
+
+void SendConfirmationDialog::updateYesButton()
+{
+    if(secDelay > 0)
+    {
+        yesButton->setEnabled(false);
+        yesButton->setText(tr("Yes") + " (" + QString::number(secDelay) + ")");
+    }
+    else
+    {
+        yesButton->setEnabled(true);
+        yesButton->setText(tr("Yes"));
+    }
+}