From 92eecedc8a52b0ba814daddb5167449a2ebb7f26 Mon Sep 17 00:00:00 2001
From: Jo-Philipp Wich <jo@mein.io>
Date: Sun, 1 Dec 2019 21:13:14 +0100
Subject: [PATCH] luci-theme-material: render menu on client side

Signed-off-by: Jo-Philipp Wich <jo@mein.io>
---
 .../htdocs/luci-static/material/js/script.js  |   2 +
 .../luasrc/view/themes/material/footer.htm    |  20 +-
 .../luasrc/view/themes/material/header.htm    | 259 +++++++++---------
 3 files changed, 134 insertions(+), 147 deletions(-)

diff --git a/themes/luci-theme-material/htdocs/luci-static/material/js/script.js b/themes/luci-theme-material/htdocs/luci-static/material/js/script.js
index 755191f335..ae39d00751 100755
--- a/themes/luci-theme-material/htdocs/luci-static/material/js/script.js
+++ b/themes/luci-theme-material/htdocs/luci-static/material/js/script.js
@@ -18,6 +18,7 @@
  *	Licensed to the public under the Apache License 2.0
  */
 
+document.addEventListener('luci-loaded', function(ev) {
 (function ($) {
 	$(".main > .loading").fadeOut();
 
@@ -216,3 +217,4 @@
 	}
 
 })(jQuery);
+});
diff --git a/themes/luci-theme-material/luasrc/view/themes/material/footer.htm b/themes/luci-theme-material/luasrc/view/themes/material/footer.htm
index 544866ddee..2f9f096bc1 100644
--- a/themes/luci-theme-material/luasrc/view/themes/material/footer.htm
+++ b/themes/luci-theme-material/luasrc/view/themes/material/footer.htm
@@ -18,27 +18,11 @@
 	Licensed to the public under the Apache License 2.0
 -%>
 
-<%
-	local ver = require "luci.version"
-	local disp = require "luci.dispatcher"
-	local request  = disp.context.path
-	local category = request[1]
-	local tree = disp.node()
-	local categories = disp.node_childs(tree)
-%>
+<% local ver = require "luci.version" %>
 	</div>
 	<footer class="mobile-hide">
 	<a href="https://github.com/openwrt/luci">Powered by <%= ver.luciname %> (<%= ver.luciversion %>)</a> / <%= ver.distversion %>
-	<% if #categories > 1 then %>
-		<ul class="breadcrumb pull-right" id="modemenu">
-		<% for i, r in ipairs(categories) do %>
-		<li<% if request[1] == r then %> class="active"<%end%>>
-			<a href="<%=controller%>/<%=r%>/"><%=striptags(translate(tree.nodes[r].title))%></a>
-			<span class="divider">|</span>
-		</li>
-		<% end %>
-		</ul>
-	<% end %>
+	<ul class="breadcrumb pull-right" id="modemenu" style="display:none"></ul>
 	</footer>
 	</div>
 </div>
diff --git a/themes/luci-theme-material/luasrc/view/themes/material/header.htm b/themes/luci-theme-material/luasrc/view/themes/material/header.htm
index 76eeec05eb..5595b14e49 100644
--- a/themes/luci-theme-material/luasrc/view/themes/material/header.htm
+++ b/themes/luci-theme-material/luasrc/view/themes/material/header.htm
@@ -26,135 +26,10 @@
 
 	local boardinfo = util.ubus("system", "board")
 
-	local request  = disp.context.path
-	local request2 = disp.context.request
-
-	local category = request[1]
-	local cattree  = category and disp.node(category)
-
-	local leaf = request2[#request2]
-
-	local tree = disp.node()
 	local node = disp.context.dispatched
 
-	local categories = disp.node_childs(tree)
-
-	local c = tree
-	local i, r
-
-	-- tag all nodes leading to this page
-	for i, r in ipairs(request) do
-		if c.nodes and c.nodes[r] then
-			c = c.nodes[r]
-			c._menu_selected = true
-		end
-	end
-
 	-- send as HTML5
 	http.prepare_content("text/html")
-
-	local function nodeurl(prefix, name, query)
-		local u = url(prefix, name)
-		if query then
-			u = u .. http.build_querystring(query)
-		end
-		return pcdata(u)
-	end
-
-	local function render_tabmenu(prefix, node, level)
-		if not level then
-			level = 1
-		end
-
-		local childs = disp.node_childs(node)
-		if #childs > 0 then
-			if level > 2 then
-				write('<ul class="tabs">')
-			end
-
-			local selected_node
-			local selected_name
-			local i, v
-
-			for i, v in ipairs(childs) do
-				local nnode = node.nodes[v]
-				if nnode._menu_selected then
-					selected_node = nnode
-					selected_name = v
-				end
-
-				if level > 2 then
-					write('<li class="tabmenu-item-%s %s"><a href="%s">%s</a></li>' %{
-						v, (nnode._menu_selected or (node.leaf and v == leaf)) and 'active' or '',
-						nodeurl(prefix, v, nnode.query),
-						striptags(translate(nnode.title))
-					})
-				end
-			end
-
-			if level > 2 then
-				write('</ul>')
-			end
-
-			if selected_node then
-				render_tabmenu(prefix .. "/" .. selected_name, selected_node, level + 1)
-			end
-		end
-	end
-
-	local function render_submenu(prefix, node)
-		local childs = disp.node_childs(node)
-		if #childs > 0 then
-			write('<ul class="slide-menu">')
-
-			for i, r in ipairs(childs) do
-				local nnode = node.nodes[r]
-				local title = striptags(translate(nnode.title))
-
-				write('<li><a data-title="%s" href="%s">%s</a></li>' %{
-					title,
-					nodeurl(prefix, r, nnode.query),
-					title
-				})
-			end
-
-			write('</ul>')
-		end
-	end
-
-	local function render_topmenu()
-		local childs = disp.node_childs(cattree)
-		if #childs > 0 then
-			write('<ul class="nav">')
-
-			for i, r in ipairs(childs) do
-				local nnode = cattree.nodes[r]
-				local grandchildren = disp.node_childs(nnode)
-
-				if #grandchildren > 0 then
-					local title = striptags(translate(nnode.title))
-
-					write('<li class="slide"><a class="menu" data-title="%s" href="#">%s</a>' %{
-						title,
-						title
-					})
-
-					render_submenu(category .. "/" .. r, nnode)
-					write('</li>')
-				else
-					local title = striptags(translate(nnode.title))
-
-					write('<li><a data-title="%s" href="%s">%s</a></li>' %{
-						title,
-						nodeurl(category, r, nnode.query),
-						title
-					})
-				end
-			end
-
-			write('</ul>')
-		end
-	end
 -%>
 <!DOCTYPE html>
 <html lang="<%=luci.i18n.context.lang%>">
@@ -180,6 +55,134 @@
 	<script src="<%=url('admin/translations', luci.i18n.context.lang)%><%# ?v=PKG_VERSION %>"></script>
 	<script src="<%=resource%>/cbi.js"></script>
 	<script src="<%=resource%>/xhr.js"></script>
+	<script type="text/javascript">//<![CDATA[
+		(function() {
+			function get_children(node) {
+				var children = [];
+
+				for (var k in node.children) {
+					if (!node.children.hasOwnProperty(k))
+						continue;
+
+					if (!node.children[k].satisfied)
+						continue;
+
+					if (!node.children[k].hasOwnProperty('title'))
+						continue;
+
+					children.push(Object.assign(node.children[k], { name: k }));
+				}
+
+				return children.sort(function(a, b) {
+					return ((a.order || 1000) - (b.order || 1000));
+				});
+			}
+
+			function render_mainmenu(tree, url, level) {
+				var l = (level || 0) + 1,
+				    ul = E('ul', { 'class': level ? 'slide-menu' : 'nav' }),
+				    children = get_children(tree);
+
+				if (children.length == 0 || l > 2)
+					return E([]);
+
+				for (var i = 0; i < children.length; i++) {
+					var submenu = render_mainmenu(children[i], url + '/' + children[i].name, l),
+					    hasChildren = submenu.children.length;
+
+					ul.appendChild(E('li', { 'class': hasChildren ? 'slide' : null }, [
+						E('a', {
+							'href': hasChildren ? '#' : L.url(url, children[i].name),
+							'class': hasChildren ? 'menu' : null,
+							'data-title': hasChildren ? null : _(children[i].title),
+						}, [ _(children[i].title) ]),
+						submenu
+					]));
+				}
+
+				if (l == 1) {
+					var container = document.querySelector('#mainmenu');
+
+					container.appendChild(ul);
+					container.style.display = '';
+				}
+
+				return ul;
+			}
+
+			function render_modemenu(tree) {
+				var ul = document.querySelector('#modemenu'),
+				    children = get_children(tree);
+
+				for (var i = 0; i < children.length; i++) {
+					var isActive = (L.env.requestpath.length ? children[i].name == L.env.requestpath[0] : i == 0);
+
+					ul.appendChild(E('li', {}, [
+						E('a', {
+							'href': L.url(children[i].name),
+							'class': isActive ? 'active' : null
+						}, [ _(children[i].title) ])
+					]));
+
+					if (isActive)
+						render_mainmenu(children[i], children[i].name);
+				}
+
+				if (ul.children.length > 1)
+					ul.style.display = '';
+			}
+
+			function render_tabmenu(tree, url, level) {
+				var container = document.querySelector('#tabmenu'),
+				    l = (level || 0) + 1,
+				    ul = E('ul', { 'class': 'tabs' }),
+				    children = get_children(tree),
+				    activeNode = null;
+
+				if (children.length == 0)
+					return E([]);
+
+				for (var i = 0; i < children.length; i++) {
+					var isActive = (L.env.dispatchpath[l + 2] == children[i].name),
+					    activeClass = isActive ? ' active' : '',
+					    className = 'tabmenu-item-%s %s'.format(children[i].name, activeClass);
+
+					ul.appendChild(E('li', { 'class': className }, [
+						E('a', { 'href': L.url(url, children[i].name) }, [ _(children[i].title) ] )
+					]));
+
+					if (isActive)
+						activeNode = children[i];
+				}
+
+				container.appendChild(ul);
+				container.style.display = '';
+
+				if (activeNode)
+					container.appendChild(render_tabmenu(activeNode, url + '/' + activeNode.name, l));
+
+				return ul;
+			}
+
+			document.addEventListener('luci-loaded', function(ev) {
+				var tree = <%= luci.http.write_json(luci.dispatcher.context.authsession and luci.dispatcher.menu_json() or {}) %>,
+				    node = tree,
+				    url = '';
+
+				render_modemenu(tree);
+
+				if (L.env.dispatchpath.length >= 3) {
+					for (var i = 0; i < 3 && node; i++) {
+						node = node.children[L.env.dispatchpath[i]];
+						url = url + (url ? '/' : '') + L.env.dispatchpath[i];
+					}
+
+					if (node)
+						render_tabmenu(node, url);
+				}
+			});
+		})();
+	//]]></script>
 </head>
 <body class="lang_<%=luci.i18n.context.lang%> <% if node then %><%= striptags( node.title ) %><% end %> <% if luci.dispatcher.context.authsession then %>logged-in<% end %>" data-page="<%= table.concat(disp.context.requestpath, "-") %>">
 <header>
@@ -199,9 +202,7 @@
 </header>
 <div class="main">
 	<div style="" class="loading"><span><div class="loading-img"></div><%:Collecting data...%></span></div>
-	<div class="main-left">
-		<% render_topmenu() %>
-	</div>
+	<div class="main-left" id="mainmenu" style="display:none"></div>
 	<div class="main-right">
 		<div class="darkMask"></div>
 		<div id="maincontent">
@@ -223,4 +224,4 @@
 					</div>
 				</noscript>
 
-				<% if category then render_tabmenu(category, cattree) end %>
+				<div id="tabmenu" style="display:none"></div>
-- 
2.30.2