Added support for navbar using angularjs

Author: jrief

cms_bootstrap3/templates/bootstrap/includes/nav-navbar.html

@@ -14,4 +14,4 @@
 			<ul class="nav navbar-nav">{% main_menu %}</ul>
 		</div>
 	</div>
-</nav>
+</nav>

cms_bootstrap3/templates/bootstrap/includes/ng-nav-navbar.html

@@ -0,0 +1,17 @@
+{% load bootstrap_tags i18n %}
+<nav class="navbar {{ navbar_classes }}" role="navigation">
+	<div class="container">
+		<div class="navbar-header">
+			<button type="button" class="navbar-toggle" data-toggle="collapse" data-target=".navbar-collapse">
+				<span class="sr-only">{% trans "Toggle navigation" %}</span>
+				<span class="icon-bar"></span>
+				<span class="icon-bar"></span>
+				<span class="icon-bar"></span>
+			</button>
+			<a class="navbar-brand" href="/">{{ navbar_brand }}</a>
+		</div>
+		<div class="collapse navbar-collapse">
+			<ul class="nav navbar-nav">{% main_menu "bootstrap/menu/ng-navbar.html" %}</ul>
+		</div>
+	</div>
+</nav>

cms_bootstrap3/templates/bootstrap/menu/ng-navbar.html

@@ -0,0 +1,26 @@
+{% for child in children %}
+<li class="{% if child.selected or child.ancestor %}active{% endif %}{% if child.children %} dropdown{% endif %}"{% if child.children %} dropdown=""{% endif %}>
+	{% if child.children %}
+	<a href="{{ child.get_absolute_url }}" class="dropdown-toggle" dropdown-toggle="">{{ child.get_menu_title }} <b class="caret"></b></a>
+	<ul class="dropdown-menu">
+		{% if child.visible %}
+		<li{% if child.selected %} class="active"{% endif %}>
+			<a href="{{ child.attr.redirect_url|default:child.get_absolute_url }}"><strong>{{ child.get_menu_title }}</strong></a>
+		</li>
+		<li class="divider"></li>
+		{% endif %}
+		{% comment %}
+		Bootsrap3 does not support submenues, so levels > 1 can't be handled be the main_menu tag and therfore
+		recursion has been dropped intentionally. Read https://github.com/twbs/bootstrap/pull/6342 for details.
+		{% endcomment %}
+		{% for grandchild in child.children %}
+			<li{% if grandchild.selected %} class="active"{% endif %}>
+				<a href="{{ grandchild.attr.redirect_url|default:grandchild.get_absolute_url }}">{{ grandchild.get_menu_title }}</a>
+			</li>
+		{% endfor %}
+	</ul>
+	{% else %}
+	<a href="{{ child.attr.redirect_url|default:child.get_absolute_url }}">{{ child.get_menu_title }}</a>
+	{% endif %}
+</li>
+{% endfor %}