qml: When multipleRecipients is disabled, clearToFront of the list

Author: johnny9

src/qml/models/sendrecipientslistmodel.cpp

@@ -144,3 +144,28 @@ void SendRecipientsListModel::clear()
     Q_EMIT currentRecipientChanged();
     Q_EMIT currentIndexChanged();
 }
+
+void SendRecipientsListModel::clearToFront()
+{
+    bool count_changed = false;
+    while (m_recipients.size() > 1) {
+        delete m_recipients.at(1);
+        m_recipients.removeAt(1);
+        count_changed = true;
+    }
+
+    if (count_changed) {
+        Q_EMIT countChanged();
+    }
+
+    if (m_totalAmount != m_recipients[0]->amount()->satoshi()) {
+        m_totalAmount = m_recipients[0]->amount()->satoshi();
+        Q_EMIT totalAmountChanged();
+    }
+
+    if (m_current != 0) {
+        m_current = 0;
+        Q_EMIT currentRecipientChanged();
+        Q_EMIT currentIndexChanged();
+    }
+}

src/qml/models/sendrecipientslistmodel.h

@@ -38,6 +38,7 @@ class SendRecipientsListModel : public QAbstractListModel
     Q_INVOKABLE void prev();
     Q_INVOKABLE void remove();
     Q_INVOKABLE void clear();
+    Q_INVOKABLE void clearToFront();
 
     int currentIndex() const { return m_current + 1; }
     void setCurrentIndex(int row);

src/qml/pages/wallet/Send.qml

@@ -34,6 +34,12 @@ PageStack {
             id: settings
             property alias coinControlEnabled: sendOptionsPopup.coinControlEnabled
             property alias multipleRecipientsEnabled: sendOptionsPopup.multipleRecipientsEnabled
+
+            onMultipleRecipientsEnabledChanged: {
+                if (!multipleRecipientsEnabled) {
+                    root.wallet.recipients.clearToFront()
+                }
+            }
         }
 
         ScrollView {