javascript - Aurelia - 一种将分隔符添加到多级下拉菜单中的方法

Question

我有一个多级下拉菜单，适用于带有 Bootstrap 的 Aurelia，但是虽然它的三个级别很深，并以此为基础扩展了这个要点，但我无法通过路由设置添加分隔线。

现在分隔符在列表标签​​中使用类“分隔符”<li></li>好的，所以我想通过添加条目 divider: true在下拉菜单的设置中，我可以检查它，如果显示链接等，我可以改为显示分隔线，但我不知道如何将其实现到 navmenu.html 文件中。这是文件:

           <ul class="nav navbar-nav">
                <li repeat.for="route of router.navigation" class="${route.isActive ? 'active' : ''}">
                    <a href.bind="route.href" if.bind="!route.settings.nav"><span class="glyphicon glyphicon-${ route.settings.icon }"></span> ${route.title}</a>

                    <a href.bind="route.href" if.bind="route.settings.nav"  class="dropdown-toggle" data-toggle="dropdown">
                        <span class="glyphicon glyphicon-${ route.settings.icon }"></span> ${route.title} <span class="caret"></span> <!--First level menu heading - requires route.settings.nav to exist-->
                    </a>

                    <ul if.bind="route.settings.nav" class="dropdown-menu">

                        <li repeat.for="menu of route.settings.nav" class="dropdown-submenu">
                            <a href.bind="menu.href" if.bind="!menu.navSettings.subNav"><span class="glyphicon glyphicon-${ menu.navSettings.icon }"></span> ${menu.title}</a>

                            <a href.bind="menu.href" if.bind="menu.navSettings.subNav" class="dropdown-toggle" data-toggle="dropdown">
                                <span class="glyphicon glyphicon-${ menu.navSettings.icon }"></span> ${menu.title} <span class="caret-right"></span>
                            </a>
                            <ul if.bind="menu.navSettings.subNav" class="dropdown-menu">
                                <li repeat.for="subMenu of menu.navSettings.subNav" class="dropdown-submenu">
                                    <a href.bind="subMenu.href" if.bind="!subMenu.subNavSettings.subSubNav"><span class="glyphicon glyphicon-${ subMenu.subNavSettings.icon }"></span> ${subMenu.title}</a>

                                    <a href.bind="subMenu.href" if.bind="subMenu.subNavSettings.subSubNav" class="dropdown-toggle" data-toggle="dropdown">
                                        <span class="glyphicon glyphicon-${ subMenu.subNavSettings.icon }"></span> ${subMenu.title} <span class="caret-right"></span>
                                    </a>
                                    <ul if.bind="subMenu.subNavSettings.subSubNav" class="dropdown-menu">
                                        <li repeat.for="lowestSubMenu of subMenu.subNavSettings.subSubNav" class="dropdown-submenu">
                                            <a href.bind="lowestSubMenu.href"> <span class="glyphicon glyphicon-${ lowestSubMenu.subSubNavSettings.icon }"></span> ${lowestSubMenu.title}</a>
                                        </li>
                                    </ul>                        
                                </li>
                            </ul>
                        </li> [ALL THE ANCHORS HERE OR A DIVIDER.. HOW DO I DO A TERNARY TO CHECK ON EACH REPEAT FOR A DIVIDER VALUE IN THE SETTINGS ARRAY. 

                    </ul>
                </li>
            </ul>

这是导航菜单从中读取的路线图中的一个例子:

{
            route: "clients",
            name: "clients",
            moduleId: PLATFORM.moduleName("../components/clients/clientList/clientList"),
            title: "Clients",
            nav: true,
            settings: {
                nav: [
                    {
                        href: "#clients/clientsList",
                        title: "Client List",
                        navSettings: {
                            icon: "list",
                            roles: ["Employee", "Admin"],
                        }
                    },
                    {
                        navSettings: {
                            roles: ["Employee", "Admin"],
                            divider: true,  // HERE IS MY DIVIDER
                        }
                    },
                    {
                        href: "#clients/Create",
                        title: "Create Client",
                        navSettings: {
                            icon: "user",
                            roles: ["Employee", "Admin"],
                        }
                    }
                ],
                icon: "user",
                auth: true,
                roles: ["Employee", "Admin"],
                pos: "left"
            }
        },

问题是 <li></li>执行重复，我需要检查该重复 - li 以查看“navSettings 是否有条目分隔符:true，如果是，则不显示链接(菜单项)，而是显示行分隔符。

我如何丢弃 anchor 并显示带有类“divider”的列表行。让我失望的是 li 有一个 repeat.for 并且我需要显示 <li></li> 之间的所有内容标签或显示分隔线。

我需要检查线路:

<li repeat.for="menu of route.settings.nav" class="dropdown-submenu">

并将类从“dropdown-submenu”更改为“divider”，同时不显示任何 anchor <a></a>通过对分隔符进行类似的检查(我猜是 if.bind)..

希望你能帮到你..

Answer 1

在<li>使用 class="${menu.divider ? 'divider' : 'dropdown-submenu'}" .

使用 if.bind在 menu.divider对于 <li> 中的元素.

<li repeat.for="menu of route.settings.nav" class="${menu.divider ? 'divider' : 'dropdown-submenu'}">
    <a if.bind="!menu.divider" href.bind="lowestSubMenu.href"> <span class="glyphicon glyphicon-${ lowestSubMenu.subSubNavSettings.icon }"></span> ${lowestSubMenu.title}</a>
    <div if.bind="menu.divider" class="divider"></div>
</li>