show 'active filters' checbox, active filters header only when needed. closes #40

src/main/webapp/WEB-INF/jsp/base/navigation.jsp

@@ -6,11 +6,10 @@
         <form class="tg search -header" action="/search">
           <fieldset class="tg search_fake-input">
             <div class="tg search_filter">
-<!--              #set ($filterParam = $request.getParameter('filter'))
-              #if ( $filterParam )
+              <c:if test="${filter.size() > 0}">
                 <input class="tg search_checkbox" id="search-filters-active" type="checkbox" checked>
-                <label for="search-filters-active">#language('filters-active')</label>
-              #end -->
+                <label for="search-filters-active">${i18n['filters-active']}</label>
+              </c:if>
             </div>
 
             <div class="tg search_search">

src/main/webapp/WEB-INF/jsp/search.jsp

@@ -42,25 +42,27 @@
 
     <h2 class="tgrep sidebar_heading">${i18n['filter']}</h2>
 
-    <section class="tgrep sidebar_panel">
-      <h3 class="tgrep sidebar_subheading">${i18n['active-filters']}</h3>
-        <ul class="tgrep sidebar_list">
-          <c:forEach items="${filter}" var="activeFilter">
-            <c:set var="afArray" value="${fn:split(activeFilter, ':')}" />
-            <li class="tgrep sidebar_item -filter" data-filter="${activeFilter}">
-              <a class="tgrep sidebar_remove-filter"
-                  title="${i18n['remove-filter']}"
-                  href="?query=${query}&order=${order}&limit=${limit}${fn:replace(filterQueryString, '&filter='.concat(afArray[0]).concat('%3A').concat(utils:urlencode(afArray[1])) , '')}">
-                <span class="sr-only">${i18n['remove-filter']}</span>
-              </a>
-              <strong>${i18n[afArray[0]]}</strong>: ${afArray[1]} 
-            </li>
-          </c:forEach>
-        </ul>
-        <c:if test="${filter.size() > 6}">
-          <button class="tgrep sidebar_expand">${i18n['expand']}</button>
-        </c:if>
-    </section>
+    <c:if test="${filter.size() > 0}">
+	    <section class="tgrep sidebar_panel">
+	      <h3 class="tgrep sidebar_subheading">${i18n['active-filters']}</h3>
+	        <ul class="tgrep sidebar_list">
+	          <c:forEach items="${filter}" var="activeFilter">
+	            <c:set var="afArray" value="${fn:split(activeFilter, ':')}" />
+	            <li class="tgrep sidebar_item -filter" data-filter="${activeFilter}">
+	              <a class="tgrep sidebar_remove-filter"
+	                  title="${i18n['remove-filter']}"
+	                  href="?query=${query}&order=${order}&limit=${limit}${fn:replace(filterQueryString, '&filter='.concat(afArray[0]).concat('%3A').concat(utils:urlencode(afArray[1])) , '')}">
+	                <span class="sr-only">${i18n['remove-filter']}</span>
+	              </a>
+	              <strong>${i18n[afArray[0]]}</strong>: ${afArray[1]}
+	            </li>
+	          </c:forEach>
+	        </ul>
+	        <c:if test="${filter.size() > 6}">
+	          <button class="tgrep sidebar_expand">${i18n['expand']}</button>
+	        </c:if>
+	    </section>
+    </c:if>
 
     <c:forEach items="${facets}" var="facetGroup">
       <c:if test="${facetGroup.facet.size() != 0}">