wip disable filters strategy is written in comments

srcs/plugins/map_prof/scripts/mp_filter_events.js

@@ -115,6 +115,21 @@ function redraw_clusters(indexes) {
 	g_marker_cluster.render();
 }
 
+/*
+	should iterate through all dom elements with class "menu_items"
+	and invert (if exist, suppress, else create) the class construct like this :
+		disabled_by_menu-name
+	where menu-name is not the name of the menu that contains the item,
+	but the name of the menu within wich the click provide. exemple :
+		- you click on menu-item:"france" in menu:"country"
+		- it disable menu-item:"conference-table-ronde" in menu:"category"
+		- by adding class "disabled_by_country"
+
+		- and if you click again on menu-item:"france" in menu:"country"
+		- it will remove class "disabled_by_country"
+		- if it's the last class containing "disabled_by_" it will be re-enabled
+	see css attribute selectors : https://www.w3schools.com/css/css_attribute_selectors.asp
+*/
 function disable_menus(menu) {
 	console.log("menu:");
 	console.log(menu);
@@ -142,8 +157,6 @@ function filter_show_only(element, menu_name) {
 	if (menu_index != "menu_name")
 		indexes = menu.indexes;
 
-	disable_menus(menu);
-
 	add = false;
 	reverse = false;
 	if (element.type === "checkbox") {
@@ -151,6 +164,8 @@ function filter_show_only(element, menu_name) {
 		add = true;
 	}
 
+	disable_menus(menu);
+
 	let index_array = filter_selection_indexes(menu_name, indexes, reverse, add);
 
 	redraw_clusters(index_array);