From 56a98e9c45a5427cb47676d8888bef69ac8a9e77 Mon Sep 17 00:00:00 2001
From: emkael <emkael@tlen.pl>
Date: Tue, 11 Apr 2017 18:28:26 +0200
Subject: Interactive, multiple choice filters

---
 http/res/ranking.js | 35 +++++++++++++++++++++++++++--------
 1 file changed, 27 insertions(+), 8 deletions(-)

(limited to 'http')

diff --git a/http/res/ranking.js b/http/res/ranking.js
index b1c0bf8..2bba8a1 100644
--- a/http/res/ranking.js
+++ b/http/res/ranking.js
@@ -11,12 +11,12 @@ var playerClick = function(ev) {
 
 var parseHash = function() {
     var hash = location.hash.replace(/^#/, '');
-    var hashParams = hash.split(',');
+    var hashParams = hash.split(';');
     var params = new Map();
     hashParams.forEach(function(hashParam) {
         var param = hashParam.split(':');
         if (param.length > 1) {
-            params.set(param[0], param[1]);
+            params.set(param[0], param[1].split(','));
         }
     });
     return params;
@@ -24,20 +24,24 @@ var parseHash = function() {
 
 var constructHash = function(params) {
     return Array.from(params).map(function(param) {
-        return param[0] + ':' + param[1];
-    }).join(',');
+        return param[0] + ':' + param[1].join(',');
+    }).join(';');
 }
 
 var readHash = function() {
     $('button.btn-primary').removeClass('btn-primary');
     var params = parseHash();
-    params.forEach(function(value, param) {
-        $('button[data-filter="' + param + '"][data-value="' + value + '"]').addClass('btn-primary');
+    params.forEach(function(values, param) {
+        values.forEach(function(value) {
+            $('button[data-filter="' + param + '"][data-value="' + value + '"]').addClass('btn-primary');
+        });
     });
     var allParams = ['age', 'gender', 'region'];
     allParams.forEach(function(param) {
         if ($('button[data-filter="' + param + '"].btn-primary').size() == 0) {
             $('button[data-clear="' + param + '"]').addClass('btn-primary');
+        } else {
+            $('#filters').collapse();
         }
     });
     filterRows(params);
@@ -47,7 +51,7 @@ var filterRows = function(params) {
     $('table.table tbody tr').show().removeClass('gold silver bronze').each(function() {
         var row = $(this);
         params.forEach(function(value, param) {
-            if (row.find('td.' + param).text().trim() != value) {
+            if (value.indexOf(row.find('td.' + param).text().trim()) == -1) {
                 row.hide();
             }
         });
@@ -68,7 +72,22 @@ $('button[data-filter]').click(function() {
     $('table.table').css('opacity', 0.1);
     var button = $(this);
     var params = parseHash();
-    params.set(button.attr('data-filter'), button.attr('data-value'));
+    var param = params.get(button.attr('data-filter'));
+    var value = button.attr('data-value');
+    var index = param ? param.indexOf(value) : -1;
+    if (index > -1) {
+        param = param.filter(function(v) { return v != value; });
+    } else {
+        if (!param) {
+            param = [];
+        }
+        param.push(value);
+    }
+    if (!param.length) {
+        params.delete(button.attr('data-filter'));
+    } else {
+        params.set(button.attr('data-filter'), param);
+    }
     location.hash = constructHash(params);
 });
 
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