diff --git a/src/plugins/qmldesigner/components/bindingeditor/actioneditor.cpp b/src/plugins/qmldesigner/components/bindingeditor/actioneditor.cpp
index 256bfac1e9f..5336f6b4dd4 100644
--- a/src/plugins/qmldesigner/components/bindingeditor/actioneditor.cpp
+++ b/src/plugins/qmldesigner/components/bindingeditor/actioneditor.cpp
@@ -49,12 +49,10 @@ void ActionEditor::prepareDialog()
 
     s_lastActionEditor = this;
 
-    m_dialog = new ActionEditorDialog(Core::ICore::dialogParent());
+    m_dialog = Utils::makeUniqueObjectPtr<ActionEditorDialog>(Core::ICore::dialogParent());
 
-    QObject::connect(m_dialog, &AbstractEditorDialog::accepted,
-                     this, &ActionEditor::accepted);
-    QObject::connect(m_dialog, &AbstractEditorDialog::rejected,
-                     this, &ActionEditor::rejected);
+    QObject::connect(m_dialog.get(), &AbstractEditorDialog::accepted, this, &ActionEditor::accepted);
+    QObject::connect(m_dialog.get(), &AbstractEditorDialog::rejected, this, &ActionEditor::rejected);
 
     m_dialog->setAttribute(Qt::WA_DeleteOnClose);
 }
@@ -327,13 +325,13 @@ void ActionEditor::prepareConnections()
     for (const QmlModelState &state : QmlItemNode(m_modelNode.view()->rootModelNode()).states().allStates())
         states.append(state.name());
 
-    if (!connections.isEmpty() && !m_dialog.isNull())
+    if (!connections.isEmpty() && m_dialog)
         m_dialog->setAllConnections(connections, singletons, states);
 }
 
 void ActionEditor::updateWindowName(const QString &targetName)
 {
-    if (!m_dialog.isNull()) {
+    if (m_dialog) {
         if (targetName.isEmpty())
             m_dialog->setWindowTitle(m_dialog->defaultTitle());
         else
diff --git a/src/plugins/qmldesigner/components/bindingeditor/actioneditor.h b/src/plugins/qmldesigner/components/bindingeditor/actioneditor.h
index 9a14ad2117c..5cdee3e428c 100644
--- a/src/plugins/qmldesigner/components/bindingeditor/actioneditor.h
+++ b/src/plugins/qmldesigner/components/bindingeditor/actioneditor.h
@@ -9,6 +9,8 @@
 #include <modelnode.h>
 #include <signalhandlerproperty.h>
 
+#include <utils/uniqueobjectptr.h>
+
 #include <QtQml>
 #include <QObject>
 #include <QPointer>
@@ -63,7 +65,7 @@ private:
     void prepareDialog();
 
 private:
-    QPointer<ActionEditorDialog> m_dialog;
+    Utils::UniqueObjectPtr<ActionEditorDialog> m_dialog;
     QModelIndex m_index;
     QmlDesigner::ModelNode m_modelNode;
 };
diff --git a/src/plugins/qmldesigner/components/bindingeditor/bindingeditor.cpp b/src/plugins/qmldesigner/components/bindingeditor/bindingeditor.cpp
index b605a77191b..c03c31208fc 100644
--- a/src/plugins/qmldesigner/components/bindingeditor/bindingeditor.cpp
+++ b/src/plugins/qmldesigner/components/bindingeditor/bindingeditor.cpp
@@ -37,12 +37,10 @@ void BindingEditor::prepareDialog()
 {
     QmlDesignerPlugin::emitUsageStatistics(Constants::EVENT_BINDINGEDITOR_OPENED);
 
-    m_dialog = new BindingEditorDialog(Core::ICore::dialogParent());
+    m_dialog = Utils::makeUniqueObjectPtr<BindingEditorDialog>(Core::ICore::dialogParent());
 
-    QObject::connect(m_dialog, &AbstractEditorDialog::accepted,
-                     this, &BindingEditor::accepted);
-    QObject::connect(m_dialog, &AbstractEditorDialog::rejected,
-                     this, &BindingEditor::rejected);
+    QObject::connect(m_dialog.get(), &AbstractEditorDialog::accepted, this, &BindingEditor::accepted);
+    QObject::connect(m_dialog.get(), &AbstractEditorDialog::rejected, this, &BindingEditor::rejected);
 
     m_dialog->setAttribute(Qt::WA_DeleteOnClose);
 }
@@ -273,13 +271,13 @@ void BindingEditor::prepareBindings()
         }
     }
 
-    if (!bindings.isEmpty() && !m_dialog.isNull())
+    if (!bindings.isEmpty() && m_dialog)
         m_dialog->setAllBindings(bindings, m_backendValueType);
 }
 
 void BindingEditor::updateWindowName()
 {
-    if (!m_dialog.isNull() && m_backendValueType) {
+    if (m_dialog && m_backendValueType) {
         QString targetString;
         if constexpr (useProjectStorage()) {
             auto exportedTypeNames = m_backendValueType.exportedTypeNamesForSourceId(
diff --git a/src/plugins/qmldesigner/components/bindingeditor/bindingeditor.h b/src/plugins/qmldesigner/components/bindingeditor/bindingeditor.h
index 52aa0884f69..8ed49b2eb6f 100644
--- a/src/plugins/qmldesigner/components/bindingeditor/bindingeditor.h
+++ b/src/plugins/qmldesigner/components/bindingeditor/bindingeditor.h
@@ -8,6 +8,8 @@
 #include <qmldesignercorelib_global.h>
 #include <modelnode.h>
 
+#include <utils/uniqueobjectptr.h>
+
 #include <QtQml>
 #include <QObject>
 #include <QPointer>
@@ -72,7 +74,7 @@ private:
     void prepareDialog();
 
 private:
-    QPointer<BindingEditorDialog> m_dialog;
+    Utils::UniqueObjectPtr<BindingEditorDialog> m_dialog;
     QVariant m_backendValue;
     QVariant m_modelNodeBackend;
     QVariant m_stateModelNode;
diff --git a/src/plugins/qmldesigner/components/bindingeditor/signallist.cpp b/src/plugins/qmldesigner/components/bindingeditor/signallist.cpp
index a4538b56c31..46470682519 100644
--- a/src/plugins/qmldesigner/components/bindingeditor/signallist.cpp
+++ b/src/plugins/qmldesigner/components/bindingeditor/signallist.cpp
@@ -54,12 +54,8 @@ bool SignalListFilterModel::filterAcceptsRow(int sourceRow, const QModelIndex &s
             || sourceModel()->data(signalIndex).toString().contains(filterRegularExpression()));
 }
 
-
-
-
 SignalList::SignalList(QObject *)
-    : m_dialog(QPointer<SignalListDialog>())
-    , m_model(new SignalListModel(this))
+    : m_model(Utils::makeUniqueObjectPtr<SignalListModel>(this))
     , m_modelNode()
 {
 }
@@ -71,9 +67,9 @@ SignalList::~SignalList()
 
 void SignalList::prepareDialog()
 {
-    m_dialog = new SignalListDialog(Core::ICore::dialogParent());
+    m_dialog = Utils::makeUniqueObjectPtr<SignalListDialog>(Core::ICore::dialogParent());
     m_dialog->setAttribute(Qt::WA_DeleteOnClose);
-    m_dialog->initialize(m_model);
+    m_dialog->initialize(m_model.get());
     m_dialog->setWindowTitle(::QmlDesigner::SignalList::tr("Signal List for %1")
                              .arg(m_modelNode.validId()));
 
@@ -98,13 +94,14 @@ void SignalList::hideWidget()
 
 SignalList* SignalList::showWidget(const ModelNode &modelNode)
 {
-    auto signalList = new SignalList();
+    auto signalList = new SignalList;
     signalList->setModelNode(modelNode);
     signalList->prepareSignals();
     signalList->showWidget();
 
-    connect(signalList->m_dialog, &QDialog::destroyed,
-            [signalList]() { signalList->deleteLater(); } );
+    connect(signalList->m_dialog.get(), &QDialog::destroyed, [signalList]() {
+        signalList->deleteLater();
+    });
 
     return signalList;
 }
@@ -265,20 +262,24 @@ void SignalList::removeConnection(const QModelIndex &modelIndex)
 
     ModelNode node = targetSignal.parentModelNode();
     if (node.isValid()) {
-        view->executeInTransaction("ConnectionModel::removeConnection",
-                                   [this, modelIndex, buttonModelIndex, targetSignal, &node] {
-            QList<SignalHandlerProperty> allSignals = node.signalProperties();
-            if (allSignals.size() > 1) {
-                const auto targetSignalWithPrefix = SignalHandlerProperty::prefixAdded(targetSignal.name());
-                for (const SignalHandlerProperty &signal : allSignals)
-                    if (signal.name() == targetSignalWithPrefix)
-                        node.removeProperty(targetSignalWithPrefix);
-            } else {
-                node.destroy();
-            }
-            m_model->setConnected(modelIndex.row(), false);
-            m_model->setData(buttonModelIndex, QVariant(), SignalListModel::ConnectionsInternalIdRole);
-        });
+        view->executeInTransaction(
+            "ConnectionModel::removeConnection",
+            [this, modelIndex, buttonModelIndex, targetSignal, &node] {
+                const QList<SignalHandlerProperty> allSignals = node.signalProperties();
+                if (allSignals.size() > 1) {
+                    const auto targetSignalWithPrefix = SignalHandlerProperty::prefixAdded(
+                        targetSignal.name());
+                    for (const SignalHandlerProperty &signal : allSignals)
+                        if (signal.name() == targetSignalWithPrefix)
+                            node.removeProperty(targetSignalWithPrefix);
+                } else {
+                    node.destroy();
+                }
+                m_model->setConnected(modelIndex.row(), false);
+                m_model->setData(buttonModelIndex,
+                                 QVariant(),
+                                 SignalListModel::ConnectionsInternalIdRole);
+            });
     }
 }
 
diff --git a/src/plugins/qmldesigner/components/bindingeditor/signallist.h b/src/plugins/qmldesigner/components/bindingeditor/signallist.h
index 228cb0e85ad..5842d445bb6 100644
--- a/src/plugins/qmldesigner/components/bindingeditor/signallist.h
+++ b/src/plugins/qmldesigner/components/bindingeditor/signallist.h
@@ -8,6 +8,8 @@
 #include <modelnode.h>
 #include <qmlconnections.h>
 
+#include <utils/uniqueobjectptr.h>
+
 #include <QtQml>
 #include <QObject>
 #include <QPointer>
@@ -74,8 +76,8 @@ private:
     void removeConnection(const QModelIndex &modelIndex);
 
 private:
-    QPointer<SignalListDialog> m_dialog;
-    SignalListModel *m_model;
+    Utils::UniqueObjectPtr<SignalListDialog> m_dialog;
+    Utils::UniqueObjectPtr<SignalListModel> m_model;
     ModelNode m_modelNode;
 };