filters multiple selection intersect well

srcs/plugins/map_prof/scripts/mp_filter_events.js

@@ -4,6 +4,30 @@
 // bounds : https://stackoverflow.com/questions/19304574/center-set-zoom-of-map-to-cover-all-visible-markers/19304625#19304625
 
 
+/**
+ * return intersection of both arrays : indexes and g_indexes
+ */
+
+function filter_selection_indexes(indexes) {
+	// if g_indexes empty, just fill it with indexes
+	// because it's like intersection of indexes and g_indexes if g_indexes was the list of all markers
+	if (g_indexes.length == 0) {
+		// deep copy of indexes
+		g_indexes = [].concat(indexes);
+	}
+	else {
+		let intersection = [];
+		for (let index of indexes) {
+			if (g_indexes.indexOf(index) != -1)
+				intersection.push(index);
+		}
+		// if no intersection found, the filter shouldn't be selectable, so this shouldn't happen
+		if (intersection.length)
+			g_indexes = intersection;
+	}
+}
+
+
 /**
  * if zoom_in is true:
  *   zoom to new selection,
@@ -12,11 +36,9 @@
 
 function filter_show_only_selection(indexes, zoom_in = false) {
 
-console.log(" ");
-console.log("indexes:");
-console.log(indexes);
+	filter_selection_indexes(indexes);
 
-	let indexes_count = indexes.length;
+	let indexes_count = g_indexes.length;
 	if (indexes_count === 0)
 		return;
 
@@ -25,14 +47,10 @@ console.log(indexes);
 	let marker = g_markers[0];
 	let position = marker.getPosition();
 	let current_bounds = g_map.getBounds();
-console.log("current_bounds:");
-console.log(current_bounds);
 	let bounds = new google.maps.LatLngBounds(position);
-console.log("bounds:");
-console.log(bounds);
 
 	let outside_bounds = false;
-	for (let index of indexes) {
+	for (let index of g_indexes) {
 		marker = g_markers[index];
 		position = marker.getPosition();
 		if (! current_bounds.contains(position))
@@ -54,6 +72,7 @@ console.log(bounds);
 }
 
 function filter_show_all() {
+	g_indexes = [];
 	g_marker_cluster.addMarkers(g_markers);
 	//g_map.fitBounds(g_init_bounds);
 	g_map.setCenter(coordinates_default);

srcs/plugins/map_prof/scripts/mp_init_map.js

@@ -8,6 +8,7 @@ const g_init_bounds = {
 	west: -180,
 	east: 180,
 };
+let g_indexes = [];
 
 function mp_init_map() {