Do not deactivate / activate mapTool when it is already active

python/gui/auto_generated/qgsmaptool.sip.in

@@ -178,6 +178,15 @@ called when set as currently active map tool
     virtual void deactivate();
 %Docstring
 called when map tool is being deactivated
+%End
+
+    virtual void reactivate();
+%Docstring
+Called when the map tool is being activated while it is already active.
+
+The default implementation does nothing.
+
+.. versionadded:: 3.32
 %End
 
     virtual void clean();

src/gui/qgsmapcanvas.cpp

@@ -2713,6 +2713,12 @@ void QgsMapCanvas::setMapTool( QgsMapTool *tool, bool clean )
   if ( !tool )
     return;
 
+  if ( tool == mMapTool )
+  {
+    mMapTool->reactivate();
+    return;
+  }
+
   if ( mMapTool )
   {
     if ( clean )

src/gui/qgsmaptool.cpp

@@ -117,6 +117,12 @@ void QgsMapTool::deactivate()
   emit deactivated();
 }
 
+
+void QgsMapTool::reactivate()
+{
+
+}
+
 void QgsMapTool::clean()
 {
 

src/gui/qgsmaptool.h

@@ -192,6 +192,14 @@ class GUI_EXPORT QgsMapTool : public QObject
     //! called when map tool is being deactivated
     virtual void deactivate();
 
+    /**
+     * Called when the map tool is being activated while it is already active.
+     *
+     * The default implementation does nothing.
+     * \since QGIS 3.32
+     */
+    virtual void reactivate();
+
     //! convenient method to clean members
     virtual void clean();