qgis - Is there any way to freeze the layer names in the TOC?

I would like to freeze the names of layers in TOC. Is there any way to do this via QGIS config or PyQGIS?

I´m using QGIS Wien.

Answer

You can (sort of) achieve it by altering the QGIS layer tree model. Write the following code snippet in a QGIS Python console:

root = QgsProject.instance().layerTreeRoot()
model = QgsLayerTreeModel(root)

model.setFlag(QgsLayerTreeModel.ShowLegend)
model.setFlag(QgsLayerTreeModel.ShowLegendAsTree)
model.setFlag(QgsLayerTreeModel.AllowNodeReorder)
model.setFlag(QgsLayerTreeModel.AllowNodeChangeVisibility)
model.setFlag(QgsLayerTreeModel.AllowLegendChangeState)
model.setFlag(QgsLayerTreeModel.AllowNodeRename,False)


tv=iface.layerTreeView()
tv.setModel(model)

After running the code, renaming layers (and groups) from the layer tree is no longer possible, although it can be done via the Properties dialog or via PyQGIS.

I guess that would be the most you can get.