Remove jQuery

static/scripts/collapse.js

@@ -1,11 +1,14 @@
 function hideAllButCurrent(){
     //by default all submenut items are hidden
-    $("nav > ul > li > ul li").hide();
+    document.querySelectorAll("nav > ul > li > ul li").style.display = "none";
 
     //only current page (if it exists) should be opened
     var file = window.location.pathname.split("/").pop();
-    $("nav > ul > li > a[href^='"+file+"']").parent().find("> ul li").show();
+    document.querySelectorAll("nav > ul > li > a[href^='"+file+"']").forEach(function(parent) {
+        parent.parentNode.querySelectorAll("ul li").forEach(function(elem) {
+            elem.style.display = "block";
+        });
+    });
 }
-$( document ).ready(function() {
-    hideAllButCurrent();
-});
+
+hideAllButCurrent();

static/scripts/polyfill.js

@@ -0,0 +1,4 @@
+//IE Fix, src: https://www.reddit.com/r/programminghorror/comments/6abmcr/nodelist_lacks_foreach_in_internet_explorer/
+if (typeof(NodeList.prototype.forEach)!==typeof(alert)){
+    NodeList.prototype.forEach=Array.prototype.forEach;
+}

static/scripts/search.js

@@ -1,47 +1,83 @@
-$( document ).ready(function() {
-    var searchAttr = 'data-search-mode';
-    jQuery.expr[':'].Contains = function(a,i,m){
-        return (a.textContent || a.innerText || "").toUpperCase().indexOf(m[3].toUpperCase())>=0;
-    };
-    //on search
-    $("#nav-search").on("keyup", function(event) {
-        var search = $(this).val();
 
-        if (!search) {
-            //no search, show all results
-            document.documentElement.removeAttribute(searchAttr);
-            $("nav > ul > li").not('.level-hide').show();
+var searchAttr = 'data-search-mode';
+function contains(a,m){
+    return (a.textContent || a.innerText || "").toUpperCase().includes(m)
+};
 
-            if(typeof hideAllButCurrent === "function"){
-                //let's do what ever collapse wants to do
-                hideAllButCurrent();
-            }
-            else{
-                //menu by default should be opened
-                $("nav > ul > li > ul li").show();
-            }
+//on search
+document.getElementById("nav-search").addEventListener("keyup", function(event) {
+    var search = this.value.toUpperCase();
+
+    if (!search) {
+        //no search, show all results
+        document.documentElement.removeAttribute(searchAttr);
+
+        document.querySelectorAll("nav > ul > li:not(.level-hide)").forEach(function(elem) {
+            elem.style.display = "block";
+        });
+
+        if (typeof hideAllButCurrent === "function"){
+            //let's do what ever collapse wants to do
+            hideAllButCurrent();
+        } else {
+            //menu by default should be opened
+            document.querySelectorAll("nav > ul > li > ul li").forEach(function(elem) {
+                elem.style.display = "block";
+            });
         }
-        else{
-            //we are searching
-            document.documentElement.setAttribute(searchAttr, '');
+    } else {
+        //we are searching
+        document.documentElement.setAttribute(searchAttr, '');
 
-            //show all parents
-            $("nav > ul > li").show();
-            //hide all results
-            $("nav > ul > li > ul li").hide();
-            //show results matching filter
-            $("nav > ul > li > ul").find("a:Contains("+search+")").parent().show();
-            //hide parents without children
-            $("nav > ul > li").each(function(){
-                if($(this).find("a:Contains("+search+")").length == 0 && $(this).children("ul").length === 0){
-                    //has no child at all and does not contain text
-                    $(this).hide();
+        //show all parents
+        document.querySelectorAll("nav > ul > li").forEach(function(elem) {
+            elem.style.display = "block";
+        });
+        //hide all results
+        document.querySelectorAll("nav > ul > li > ul li").forEach(function(elem) {
+            elem.style.display = "none";
+        });
+        //show results matching filter
+        document.querySelectorAll("nav > ul > li > ul a").forEach(function(elem) {
+            if (!contains(elem.parentNode, search)) {
+                return;
+            }
+            elem.parentNode.style.display = "block";
+        });
+        //hide parents without children
+        document.querySelectorAll("nav > ul > li").forEach(function(parent) {
+            var countSearchA = 0;
+            parent.querySelectorAll("a").forEach(function(elem) {
+                if (contains(elem, search)) {
+                    countSearchA++;
+                }
+            });
+
+            var countUl = 0;
+            var countUlVisible = 0;
+            parent.querySelectorAll("ul").forEach(function(ulP) {
+                // count all elements that match the search
+                if (contains(ulP, search)) {
+                    countUl++;
                 }
-                else if($(this).find("a:Contains("+search+")").length == 0 && $(this).find("ul").children(':visible').length == 0){
-                    //has no visible child and does not contain text
-                    $(this).hide();
+
+                // count all visible elements
+                var children = ulP.children
+                for (i=0; i<children.length; i++) {
+                    var elem = children[i];
+                    if (elem.style.display != "none") {
+                        countUlVisible++;
+                    }
                 }
             });
-        }
-    });
+
+            if (countSearchA == 0 && countUl === 0){
+                //has no child at all and does not contain text
+                parent.style.display = "none";
+            } else if(countSearchA == 0 && countUlVisible == 0){
+                //has no visible child and does not contain text
+                parent.style.display = "none";
+            }
+        });
+    }
 });

tmpl/layout.tmpl

@@ -71,15 +71,13 @@
 </footer>
 
 <script>prettyPrint();</script>
+<script src="scripts/polyfill.js"></script>
 <script src="scripts/linenumber.js"></script>
-<?js if (env.conf.docdash.search || env.conf.docdash.collapse) { ?>
-<script src="scripts/jquery-3.1.1.min.js"></script>
 <?js if (env.conf.docdash.search) { ?>
-<script src="scripts/search.js"></script>
+<script src="scripts/search.js" defer></script>
 <?js } ?>
 <?js if (env.conf.docdash.collapse) { ?>
-<script src="scripts/collapse.js"></script>
-<?js } ?>
+<script src="scripts/collapse.js" defer></script>
 <?js } ?>
 <?js if (env.conf.docdash.scripts && env.conf.docdash.scripts.length) {
     for(var i = 0; i < env.conf.docdash.scripts.length; i++){