WebTextEditor also can be set to non editable (read-only mode). Simply set the section's ReadOnly property to true from server-side.
Read-only setting can also be set from client side; user can use SetReadOnly client side method. There are two parameters for this method: isReadOnly(boolean) and editorSectionName(string).
isReadOnly parameter determines whether the section should be read-only or not, while editorSectionName determines the section name when WebTextEditor is operating in multiple section. Otherwise, this parameter should be left empty.