[cmake] enable/disable jsroot in jupyter #20450

Now jsroot functionality in jupyter depends on
TWebCanvas functionality. But it is not compiled
when -Dwebgui=off is configured. So change default
notebook behavior depending on that configuration

Resolves #20450

Author: linev

cmake/modules/RootConfiguration.cmake

@@ -526,10 +526,12 @@ if(webgui)
    set(root_canvas_class "TWebCanvas")
    set(root_treeviewer_class "RTreeViewer")
    set(root_geompainter_type "web")
+   set(root_jupyter_jsroot "on")
 else()
    set(root_canvas_class "TRootCanvas")
    set(root_treeviewer_class "TTreeViewer")
    set(root_geompainter_type "root")
+   set(root_jupyter_jsroot "off")
 endif()
 
 if(root7 AND webgui)

config/rootrc.in

@@ -242,9 +242,9 @@ GeomPainter.Name:            @root_geompainter_type@
 # THttpServer specific settings
 # location of JavaScript ROOT sources
 #HttpServ.JSRootPath:        @jsrootdir@
-# Default setting for enabling or disabling JSROOT. 
+# Default setting for enabling or disabling JSROOT.
 # This can be toggled in the notebook using the `%jsroot on/off` command.
-Jupyter.JSRoot:               on
+Jupyter.JSRoot:               @root_jupyter_jsroot@
 
 # WebGui specific settings (defaults are shown)
 # fixed http port number for server, 0 - not fixed, -1 - disabled completely