我正在考虑如何解决这个问题。让我们开始吧:
我的网站上有一个菜单栏(或导航栏)。
我是从JSON文件创建的,我正在使用AngularJS指令和模板来创建它:
JSON文件:
0f
我的AngularJS指令包含模板:
{
"mainmenu": [
{
"id": "bananas",
"title": "Bananas",
"href": "#/bananas",
"li-class": "menu-element"
},
{
"id": "apples",
"title": "Apples",
"li-class": "dropdown"
"submenu": [
{
"id": "apple-lot",
"title": "Apples lots",
"href": "#/apples/lot"
},
{
"id": "apple-series",
"title": "Apples series",
"href": "#/apples/series"
}
]
},
{
"id": "cherries",
"title": "Cherries",
"href": "#/cherries",
"li-class": "menu-element"
}
]
}
和AngularJS控制器:
angular.module('dynamic-menu').directive('menuTemplate', function () {
return {
restrict: 'E',
template: "<nav class=\"navbar navbar-inverse navbar-fixed-top\" role=\"navigation\" id=\"nav-bar\" style=\"margin-bottom: 0.5%\">"
+ "<div class=\"container-fluid\">"
+ "<div class=\"navbar-header\">"
+ "<span class=\"navbar-brand\">TITLE</span>"
+ "</div>"
+ "<div class=\"collapse navbar-collapse\">"
+ "<span class=\"navbar-brand\">"
+ "<ul class=\"nav navbar-nav\">"
+ "<li ng-repeat=\"item in mainmenu\">"
+ "<a href=\"{{item.href}}\">{{item.title}}</a>"
+"</li>"
+"</ul> <!-- /.nav navbar-nav -->"
+"</span> <!-- /.navbar-brand -->"
+"</div> <!-- /.navbar-collapse-->"
+"</div> <!-- /.container-fluid-->"
+"</nav>"
};
}]);
问题是 - 如何动态更改TITLE?
我的AngularJS指令中的这一行:
angular.module('dynamic-menu').controller('dynamicMenuCtrl', ['$scope', '$http', function ($scope, $http) {
$http.get('MenuItems.json').success(function (data) {
$scope.mainmenu = data;
});
也许我可以在我的JSON文件中添加一些内容并以某种方式检查是否为active-menu-element分配了一个类? (例如+ "<span class=\"navbar-brand\">TITLE</span>"
)或如何?
以下是Plunker - 我希望在我的模板中动态更改<li class="menu-item-active">
http://plnkr.co/edit/U1xG2E4ys7SGz7WxBtvq?p=preview
我必须使用指令
编辑:我想要实现的目标:
在Title
我想要标题为main page
时,当我在子菜单fruits
上时,我想显示标题Bananas
答案 0 :(得分:1)
JSON:
{
"title": "some title",
"mainmenu": [
{
"id": "bananas",
"title": "Bananas",
"href": "#/bananas",
"li-class": "menu-element"
},
{
"id": "apples",
"title": "Apples",
"li-class": "dropdown"
"submenu": [
{
"id": "apple-lot",
"title": "Apples lots",
"href": "#/apples/lot"
},
{
"id": "apple-series",
"title": "Apples series",
"href": "#/apples/series"
}
]
},
{
"id": "cherries",
"title": "Cherries",
"href": "#/cherries",
"li-class": "menu-element"
}
]
}
模板中的
"<span class=\"navbar-brand\">{{title}}</span>"
JS: angular.module('dynamic-menu')。controller('dynamicMenuCtrl',['$ scope','$ http',
function ($scope, $http) {
$http.get('MenuItems.json').success(function (data) {
$scope.mainmenu = data;
$scope.title = data.title;
});