Orchard Admin Menu

Themes\TheAdmin\Views\Menu.cshtml

@using Orchard.Utility.Extensions;
@{
    Script.Require("jQuery");
    Script.Include("admin.js");
    IEnumerable<dynamic> firstLevelMenuItems = Model;

    if (Model.ImageSets != null) {
        foreach (var imageSet in Model.ImageSets) {
            RegisterImageSet("menu." + imageSet, Model.MenuName /* style */, 16 /* bounding box */);
        }
    }

    Model.Attributes.Add("role", "navigation");
    var tag = Tag(Model, "ul");
}
@tag.StartElement
    @foreach(var firstLevelMenuItem in Model) {
        IEnumerable<dynamic> secondLevelMenuItems = firstLevelMenuItem;

        string sectionHeaderText = firstLevelMenuItem.Text.Text;
        string sectionHeaderTextHint = firstLevelMenuItem.Text.TextHint;
        var firstOfTheSecond = secondLevelMenuItems.FirstOrDefault();

        var itemClassName = HasText(sectionHeaderTextHint)
            ? "navicon-" + sectionHeaderTextHint.HtmlClassify()
            : "navicon";
        var itemId = HasText(firstLevelMenuItem.IdHint)
            ? "navicon-" + firstLevelMenuItem.IdHint
            : null;

        IHtmlString sectionHeaderMarkup;
        if (firstOfTheSecond != null 
            && firstLevelMenuItem.LinkToFirstChild 
            && (
                firstOfTheSecond.RouteValues != null 
                || HasText(firstOfTheSecond.Url))) {
            sectionHeaderMarkup = HasText(itemId)
                ? Html.Link(sectionHeaderText, (string)firstOfTheSecond.Href, new { target = "_blank", @class = itemClassName, id = itemId })
                : Html.Link(sectionHeaderText, (string)firstOfTheSecond.Href, new { target = "_blank", @class = itemClassName });
        }
        else if (firstLevelMenuItem.RouteValues != null || HasText(firstLevelMenuItem.Url)) {
            sectionHeaderMarkup = HasText(itemId)
                ? Html.Link(sectionHeaderText, (string)firstLevelMenuItem.Href, new { target = "_blank", @class = itemClassName, id = itemId })
                : Html.Link(sectionHeaderText, (string)firstLevelMenuItem.Href, new { target = "_blank", @class = itemClassName });
        }
        else {
            // if the header isn't linked and there are no children there's no reason for this item in the menu other than to look pretty
            if (!secondLevelMenuItems.Any()) {
                continue;
            }
        
            sectionHeaderMarkup = HasText(itemId)
                ? new HtmlString(string.Format(@"<span class=""{1}"" id=""{2}"">{0}</span>", Html.Encode(sectionHeaderText), Html.Encode(itemClassName), Html.Encode(itemId)))
                : new HtmlString(string.Format(@"<span class=""{1}"">{0}</span>", Html.Encode(sectionHeaderText), Html.Encode(itemClassName)));
        }

        if (firstLevelMenuItem == firstLevelMenuItems.First()) {
            firstLevelMenuItem.Classes.Add("first");
        }
        if (firstLevelMenuItem == firstLevelMenuItems.Last()) {
            firstLevelMenuItem.Classes.Add("last");
        }
        if (firstLevelMenuItem.Selected) {
            firstLevelMenuItem.Classes.Add("selected");
        }

        if (HasText(sectionHeaderTextHint)) {
            firstLevelMenuItem.Classes.Add("section-" + sectionHeaderTextHint.HtmlClassify());
        }

        var firstLevelTag = Tag(firstLevelMenuItem, "li");
        @firstLevelTag.StartElement
            <h3>@sectionHeaderMarkup</h3>
            if (secondLevelMenuItems.Count(menuItem => !menuItem.LocalNav) > 1 || !firstLevelMenuItem.LinkToFirstChild) {
                <ul class="menuItems">
                @{ var first = true;}    
                @foreach (var secondLevelMenuItem in secondLevelMenuItems.Where(menuItem => !menuItem.LocalNav)) {
                    if (first && firstLevelMenuItem.LinkToFirstChild) {
                        first = false;
                        continue;
                    }
                    
                    string secondLevelTextHint = secondLevelMenuItem.Text.TextHint;
                    var firstOfTheThird = ((IEnumerable<dynamic>)secondLevelMenuItem.Items).FirstOrDefault();

                    var secondLevelItemClassName = HasText(secondLevelTextHint)
                        ? "subnavicon-" + secondLevelTextHint.HtmlClassify()
                        : "subnavicon";
                    var secondLevelItemId = HasText(secondLevelMenuItem.IdHint)
                        ? "subnavicon-" + secondLevelMenuItem.IdHint
                        : null;

                    if (secondLevelMenuItem.Selected) {
                        secondLevelMenuItem.Classes.Add("selected"); 
                    }

                    var secondLevelTag = Tag(secondLevelMenuItem, "li");
                    var secondLevelUrl = secondLevelMenuItem.Href;
                    if (firstOfTheThird != null && secondLevelMenuItem.LinkToFirstChild && (firstOfTheThird.RouteValues != null || HasText(firstOfTheThird.Url))) {
                        secondLevelUrl = firstOfTheThird.Href;
                    }                    
                    @secondLevelTag.StartElement
                        if (HasText(secondLevelItemId)) {
                            <a target="_blank" href="@secondLevelUrl" class="@secondLevelItemClassName" id="@secondLevelItemId">@secondLevelMenuItem.Text</a>
                        }
                        else {
                            <a target="_blank" href="@secondLevelUrl" class="@secondLevelItemClassName">@secondLevelMenuItem.Text</a>
                        }
                    @secondLevelTag.EndElement
                }
                </ul>
            }
       @firstLevelTag.EndElement
    }
@tag.EndElement
@using(Script.Foot()) {
<script type="text/javascript">
//<![CDATA[
    (function ($) {
        $("@string.Format(".{0} h3", string.Join(".", Model.Classes))").expandoControl(function(controller) { return controller.next(); }, { key: "N42", path: "@Url.Content("~/")" });
    })(jQuery);
//]]>
</script>
}