diff --git a/src/plugins/debugger/debuggermainwindow.cpp b/src/plugins/debugger/debuggermainwindow.cpp
index 72e21923a64..1b7681ad70a 100644
--- a/src/plugins/debugger/debuggermainwindow.cpp
+++ b/src/plugins/debugger/debuggermainwindow.cpp
@@ -301,6 +301,7 @@ void DebuggerMainWindow::loadPerspectiveHelper(const QByteArray &perspectiveId,
 
     QTC_ASSERT(m_perspectiveForPerspectiveId.contains(m_currentPerspectiveId), return);
     const Perspective *perspective = m_perspectiveForPerspectiveId.value(m_currentPerspectiveId);
+    perspective->aboutToActivate();
     for (const Perspective::Operation &operation : perspective->operations()) {
         QDockWidget *dock = m_dockForDockId.value(operation.dockId);
         if (!dock) {
@@ -405,6 +406,17 @@ void Perspective::setName(const QString &name)
     m_name = name;
 }
 
+void Perspective::setAboutToActivateCallback(const Perspective::Callback &cb)
+{
+    m_aboutToActivateCallback = cb;
+}
+
+void Perspective::aboutToActivate()
+{
+    if (m_aboutToActivateCallback)
+        m_aboutToActivateCallback();
+}
+
 QList<QWidget *> ToolbarDescription::widgets() const
 {
     return m_widgets;
diff --git a/src/plugins/debugger/debuggermainwindow.h b/src/plugins/debugger/debuggermainwindow.h
index 0e8a9f5c81d..589055b5a8b 100644
--- a/src/plugins/debugger/debuggermainwindow.h
+++ b/src/plugins/debugger/debuggermainwindow.h
@@ -82,6 +82,10 @@ public:
     QString name() const;
     void setName(const QString &name);
 
+    using Callback = std::function<void()>;
+    void setAboutToActivateCallback(const Callback &cb);
+    void aboutToActivate();
+
 private:
     Perspective(const Perspective &) = delete;
     void operator=(const Perspective &) = delete;
@@ -90,6 +94,7 @@ private:
     QVector<QByteArray> m_docks;
     QVector<Operation> m_operations;
     QPointer<QWidget> m_centralWidget;
+    Callback m_aboutToActivateCallback;
 };
 
 class DEBUGGER_EXPORT ToolbarDescription