filters intersection almost works, except remove checkbox action
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295
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295
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@@ -1,295 +0,0 @@
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// https://googlemaps.github.io/js-markerclusterer/classes/MarkerClusterer.html
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// add true for noDraw
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// bounds : https://stackoverflow.com/questions/19304574/center-set-zoom-of-map-to-cover-all-visible-markers/19304625#19304625
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function array_first_not_in_second(first, second) {
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let temp_array = [];
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for (let index of first) {
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if (second.indexOf(index) == -1) {
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temp_array.push(index);
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}
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}
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return temp_array;
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}
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function filter_selection_indexes(menu, indexes, reverse, add) {
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if (indexes.length === 0) {
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// if array of index is empty, delete menu
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delete g_indexes[menu];
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}
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else if (reverse) {
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// if reverse is true, delete all indexes in g_indexes.menu
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// https://stackoverflow.com/questions/5113374/javascript-check-if-variable-exists-is-defined-initialized
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if ( typeof(g_indexes[menu]) !== "undefined" && g_indexes[menu] !== null ) {
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// creates an array with all values of g_indexes[menu] minus indexes
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let temp_array = array_first_not_in_second(g_indexes[menu], indexes);
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if (temp_array.length === 0)
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delete g_indexes[menu];
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else
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g_indexes[menu] = [].concat(temp_array);
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}
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}
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else {
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if (add && typeof(g_indexes[menu]) !== "undefined") {
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// add array of menus to g_indexes{}
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// creates an array with all values of indexes that are not in g_indexes[menu] already
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let temp_array = array_first_not_in_second(indexes, g_indexes[menu]);
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g_indexes[menu] = g_indexes[menu].concat(temp_array);
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}
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else {
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// replace or create array of menu in g_indexes{}
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g_indexes[menu] = [].concat(indexes);
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}
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}
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// loop through all arrays of g_indexes to find intersection
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// take first one as comparison
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let keys = Object.keys(g_indexes);
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let intersection = [];
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let compare = [];
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keys.forEach((key, i) => {
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if (i == 0) {
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intersection = g_indexes[key];
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}
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else {
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let temp = [];
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compare = g_indexes[key];
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for (let index of intersection) {
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if (compare.indexOf(index) != -1)
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temp.push(index);
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}
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intersection = [].concat(temp);
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}
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});
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return intersection;
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}
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function redraw_clusters(indexes) {
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let indexes_count = indexes.length;
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if (indexes_count !== 0) {
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// if index array, hide all other markers, and if zoomin, zoom to new markers
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g_marker_cluster.clearMarkers(true);
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let marker = g_markers[0];
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let current_bounds = g_map.getBounds();
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let bounds = new google.maps.LatLngBounds();
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let outside_bounds = false;
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for (let index of indexes) {
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marker = g_markers[index];
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position = marker.getPosition();
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if (! current_bounds.contains(position))
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outside_bounds = true;
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bounds.extend(position);
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g_marker_cluster.addMarker(marker, true);
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}
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if (outside_bounds) {
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if (indexes_count === 1) {
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g_map.setCenter(position);
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g_map.setZoom(max_zoom);
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}
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else if (indexes_count > 1) {
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g_map.fitBounds(bounds);
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}
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}
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}
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else if ( Object.keys(g_indexes).length === 0 ) {
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// object is empty, there are no filters
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g_map.setCenter(coordinates_default);
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g_map.setZoom(2);
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g_marker_cluster.addMarkers(g_markers, true);
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}
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else {
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// filters intersection lets no markers on the map
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g_marker_cluster.clearMarkers(true);
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}
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g_marker_cluster.render();
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}
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/*
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should iterate through all dom elements with class "menu_items"
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and invert (if exist, suppress, else create) the class construct like this :
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disabled_by_menu-name
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where menu-name is not the name of the menu that contains the item,
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but the name of the menu within wich the click provide. exemple :
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- you click on menu-item:"france" in menu:"country"
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- it disable menu-item:"conference-table-ronde" in menu:"category"
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- by adding class "disabled_by_country"
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- and if you click again on menu-item:"france" in menu:"country"
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- it will remove class "disabled_by_country"
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- if it's the last class containing "disabled_by_" it will be re-enabled
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see css attribute selectors : https://www.w3schools.com/css/css_attribute_selectors.asp
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*/
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function toggle_one_class(menu_from, menu_name, menu_item) {
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/*
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*/
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console.log("\n" + menu_name + " from " + menu_from + ":");
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console.log("- " + menu_item);
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let html_id = `filter_${menu_name}_${menu_item}`;
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let html_class = `disabled_by_${menu_from}`;
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let item = document.getElementById(html_id);
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let item_classes = item.classList;
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item_classes.toggle(html_class);
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}
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function toggle_all_classes() {
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/*
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*/
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// loop through all items elements of menu in html, and toggle "disabled" if there is or not a class "disabled_by_*"
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// get all elements in all menus
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let items = document.getElementsByClassName("filter_menu_item");
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for (let item of items) {
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let item_classes = item.classList;
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let item_classes_value = item_classes.value;
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if ( item_classes_value.includes("disabled_by_") )
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item.setAttribute('disabled', '');
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else
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item.removeAttribute('disabled');
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}
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}
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/*
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' pays ' '-- categories --'
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' [france] ' ' table ron. '
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' chili ' '-- conferenc. --'
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' bresil ' ' atelier '
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' canada ' '-- forums --'
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' benin ' '-- seminaire. --'
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' rencontre. '
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' autres '
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' [pays ] ' ' categories '
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' france ' ' table ron. '
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' chili ' ' conferenc. '
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' bresil ' ' atelier '
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' canada ' ' forums '
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' benin ' ' seminaire. '
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' rencontre. '
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' autres '
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'-- pays --' ' categories '
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' france ' ' table ron. '
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' chili ' ' conferenc. '
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'-- bresil --' ' [atelier ] '
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'-- canada --' ' forums '
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'-- benin --' ' seminaire. '
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' rencontre. '
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' autres '
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' pays ' ' [categories] '
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' france ' ' table ron. '
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' chili ' ' conferenc. '
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' bresil ' ' atelier '
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' canada ' ' forums '
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' benin ' ' seminaire. '
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' rencontre. '
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' autres '
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' pays ' '-- categories --'
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' france ' '-- table ron. --'
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' [chili ] ' '-- conferenc. --'
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' bresil ' ' atelier '
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' canada ' ' forums '
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' benin ' '-- seminaire. --'
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'-- rencontre. --'
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' autres '
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' pays ' '-- categories --'
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' [france] ' ' table ron. '
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' chili ' '-- conferenc. --'
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' bresil ' ' atelier '
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' canada ' '-- forums --'
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' benin ' '-- seminaire. --'
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' rencontre. '
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' autres '
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'-- pays --' '-- categories --' / ' pays ' '-- categories --'
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' france ' ' table ron. ' / ' [france] ' ' table ron. '
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' chili ' '-- conferenc. --' / ' chili ' '-- conferenc. --'
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'-- bresil --' ' [atelier ] ' / ' bresil ' ' [atelier ] '
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'-- canada --' '-- forums --' / ' canada ' '-- forums --'
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'-- benin --' '-- seminaire. --' / ' benin ' '-- seminaire. --'
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' rencontre. ' / ' rencontre. '
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' autres ' / ' autres '
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*/
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function disable_menus(menu_name_ori, menu_item_ori) {
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let keys = Object.keys(menu_item_ori);
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// loop through list of other menu_items available for this menu_item
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// loop though menu names (pays, categories, mode)
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for (let menu_name of keys) {
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if (menu_name === "_name")
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continue;
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if (menu_name === "indexes")
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continue;
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// loop through items in menu names (ex. for "pays" : france, chili, cuba)
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for (let item of menu_item_ori[menu_name]) {
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toggle_one_class( menu_name_ori, menu_name, item.replace(/ /g, "_") );
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}
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}
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toggle_all_classes();
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/*
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*/
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}
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function filter_show_only(element, menu_name) {
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g_infowindow.close();
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let menu_index = element.getAttribute("data-menu_index");
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let menu_item = filters[menu_name][menu_index];
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let indexes = [];
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if (menu_index != "menu_name")
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indexes = menu_item.indexes;
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add = false;
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reverse = false;
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if (element.type === "checkbox") {
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reverse = ! element.checked;
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add = true;
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}
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disable_menus(menu_name, menu_item);
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let index_array = filter_selection_indexes(menu_name, indexes, reverse, add);
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redraw_clusters(index_array);
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}
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function filter_show_all() {
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g_infowindow.close();
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g_indexes = {};
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g_marker_cluster.clearMarkers(true);
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g_marker_cluster.addMarkers(g_markers);
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/* dont use fitBounds because it's not well centered */
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/* instead use setCenter and setZoom */
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//g_map.fitBounds(g__init_bounds);
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g_map.setCenter(coordinates_default);
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g_map.setZoom(2);
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}
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