How to DRY up list in angular - javascript

This is my first time posting a question on stackoverflow so sorry if its not in the correct format.
I keep running into the same problem in angular and i'm sure there is a very simple way to solve it but for some reason i can't figure it out. I will post an example and give an explanation below.
<div class="jmc-navbar-content" ng-if="!vm.isHidden" ng-swipe-up="vm.toggleNav()">
<!-- contains the navigation/page links -->
<ul class="jmc-navbar-menu">
<li class="active"><a class="noPreventDefault" ng-click="vm.toggleNav()" ng-href="#home">Home</a></li>
<li><a class="noPreventDefault" ng-click="vm.toggleNav()" ng-href="#portfolio">Portfolio</a></li>
<li><a class="noPreventDefault" ng-click="vm.toggleNav()" ng-href="#about">About</a></li>
<li><a class="noPreventDefault" ng-click="vm.toggleNav()" ng-href="#contact">Contact</a></li>
<li><a class="noPreventDefault" ng-click="vm.toggleNav()" ng-href="#/">View source on GitHub</a></li>
</ul>
</div>
Although this works i don't like having to repeat myself for all the <a> tags which need to have the same classes and attributes. I can think of multiple ways in which to do this with javascript but they all seem a little 'hack-y'. Is there any simple way to do this in Angular or Javascript?
Thanks for taking the time to reply, any and all constructive criticism is appreciated.

First you could create an array of objects with the paths and the placeholder(display):
Then you can use ngRepeat directive:
<li ng-class="{ 'active': $first }" ng-repeat="link in vm.links"><a class="noPreventDefault" ng-click="vm.toggleNav()" ng-href="{{link.path}}">{{link.display}}</a></li>
See it working:
(function() {
'use strict';
angular
.module("app", [])
.controller('MainCtrl', MainCtrl);
function MainCtrl() {
var vm = this;
vm.links = [
{
"path": "#home", "display": "Home"
},
{
"path": "#portfolio", "display": "Portfolio"
},
{
"path": "#contact", "display": "Contact"
},
{
"path": "#about", "display": "About"
},
{
"path": "#/", "display": "View source on GitHub"
}
];
}
})();
<!DOCTYPE html>
<html ng-app="app">
<head>
<script src="https://cdnjs.cloudflare.com/ajax/libs/angular.js/1.5.8/angular.min.js"></script>
</head>
<body ng-controller="MainCtrl as vm">
<li ng-class="{ 'active': $first }" ng-repeat="link in vm.links"><a class="noPreventDefault" ng-click="vm.toggleNav()" ng-href="{{link.path}}">{{link.display}}</a></li>
</body>
</html>
I hope it helps.

In your html use ng-repeat
And as your first li has the class as 'active', you need to use $index
<div ng-repeat = 'aVal in aVals'>
<li ng:class="{true:'active', false:''}[$index == 0]"><a class="noPreventDefault" ng-click="vm.toggleNav()" ng-href="aVal.hrefVal">{{aVal.name}}</a></li>
</div>
And in angularController
var app = angular.module("myApp", []);
angular
.module('myApp')
.controller('myCtrl', ['$scope',
function ($scope) {
$scope.aVals= [
{ hrefVal: '#home', name='Home'},
{ hrefVal: '#portfolio', name='Protfolio'},
// so on
];
}]);

yes ,you can use ng-repeat.I think it satisfy your problem. and If then href's are states then angular provide ui-sref. This way you can implement.
Can you check this attachement .
"http://jsfiddle.net/soumyagangamwar/789Ks/77/"
If it satisfy you requirement then don't forget to vote.

Related

How to create links for array elements in AngularJS

I am new to AngularJS. I want to create links for elements in the array. Suggest me some code or descriptives.
app.js
app.controller('ItemsController', function($scope) {
$scope.message = 'Items are displayed';
$scope.items=['Appliances','Books','Cosmetics','Home & Furniture','Mens','women','kids'];
});
items.html
<div ng-controller="ItemsController">
<p><h1>Type a letter in the input field:</h1></p>
<p><input type="text" ng-model="test"></p>
{{message}}
<ul><h2>
<li ng-repeat="x in items| filter:test">
{{ x }}
</li>
</h2></ul>
</div>
Here is the sample output for the above code. Items displayed in the output should be links.
If you are using routing then just create an anchor tag in the li.
<ul>
<h2>
<li ng-repeat="x in items| filter:test">
{{x}}
</li>
</h2>
</ul>
In the route configuration, just handle the specific route pertaining to the item. Like if you want to display the details for the item.
myApp.config(['$routeProvider',function($routeProvider){
$routeProvider.
when('/details/:item',{
templateUrl:'partials/details.html',
controller: 'DetailsController'
}).
otherwise({
redirectTo : 'yourdefaultpath'
})
Item shall be available in your controller as a routeParam and then you can display your data accordingly.
Hope this helps.
You can use ui-sref and declare your items as states using ngRoute in your app, this is how would be your code:
<ul>
<li ng-repeat="x in items| filter:test">
<a ui-sref="{{x}}"><h2>{{ x }}</h2></a>
</li>
</ul>
Update your JS to add the states, like this:
app.config(function($stateProvider) {
$stateProvider.state('Appliances', {
url: 'Appliances',
templateUrl: 'app/views/appliances.html'
});
});

generate number in sequence in both ng-repeat

I have to generate numbers in sequence(continuous numbers) for both ng-repeat and for which i am using $index but that is again giving me sequence from 1 for second ng-repeat.
I tried taking a variable in scope and then incrementing in the view but that is also not working out.
Example plunker
Code:
<body ng-controller="MainCtrl">
<ul ng-repeat="detail in details">
<li><span>{{$index + 1}}</span><span> {{detail.name}}</span>
</li>
</ul>
<ul ng-repeat="detailed in details.name">
<li><span>{{$index + 1}}</span><span>{{detailed.prof}}</span></li>
</ul>
</body>
Controller:
app.controller('MainCtrl', function($scope) {
$scope.details = [
{ "name": "Employees" },
{ "name": "Support" }
];
$scope.details.name = [
{ "prof": "enginerr" },
{ "prof": "doctor" }
];
});
here in this plunker engineer number should be 3 and doctor number should be 4.
Any help would be appreciated.
Add details.length to the second ng-repeat
<body ng-controller="MainCtrl">
<ul ng-repeat="detail in details">
<li><span>{{$index + 1}}</span><span> {{detail.name}}</span>
</li>
</ul>
<ul ng-repeat="detailed in details.name">
<li><span>{{details.length + $index + 1}}</span><span>{{detailed.prof}}</span></li>
</ul>

Uib-Dropdown Does not work in Body of HTML View

I have installed, correctly, the following:
"ui-bootstrap": "0.12.2",
"ngAnimate": "1.5.5",
"AngularJs": "1.5.5
When creating a dropdown menu in the body tag of my html view, I am not receiving any visible results. I am not receiving any error messages in both console and network analyzer. Also, all other angularJS and code work perfectly in the view, so there is nothing wrong with external set-up. Here is the HTML in Question:
<div class="btn-group" uib-dropdown dropdown-append-to-body>
<button id="btn-append-to-body" type="button" class="btn btn-primary" uib-dropdown-toggle>
DropDown <span class="caret"></span>
</button>
<ul class="dropdown-menu" uib-dropdown-menu role="menu" aria-labelledby="btn-append-to-body">
<li role="menuitem">Action</li>
<li role="menuitem">Another action</li>
<li role="menuitem">Something else here</li>
<li class="divider"></li>
<li role="menuitem">Separated link</li>
</ul>
</div>
And Here is JS in Question:
var myApp = angular.module('app', ['ui.bootstrap','ngAnimate']);
myApp.controller('Controller', ['$scope', '$http', '$log', function($scope, $http, $log) {
$scope.status = {
isopen: false
};
$scope.toggled = function(open) {
$log.log('Dropdown is now: ', open);
};
$scope.toggleDropdown = function($event) {
$event.preventDefault();
$event.stopPropagation();
$scope.status.isopen = !$scope.status.isopen;
};
$scope.appendToEl = angular.element(document.querySelector('#dropdown-long-content'));
}]);
As of ui-bootstrap 0.14.0, they require the uib- prefix for their directives. It looks like you're using an earlier version so you should get the directive to show by removing the uib- prefix. In other words, "uib-dropdown-menu" becomes "dropdown-menu" etc.
Either that, or use the latest version of ui-bootstrap.
Source: bootstrap migration guide for prefixes

Angularjs optional navigation

I have an angular app with 11 pages. Some of them have a nav which is using this code:
<div class="well sidebar-nav" ng-app="navList">
<ul class="nav nav-list" ng-controller="navCtrl">
<li ng-class="navClass('home')"><a href='#/home'>Home</a></li>
<li ng-class="navClass('about')"><a href='#/about'>About Us</a></li>
<li ng-class="navClass('contact')"><a href='#/contact'>Contact Us</a></li>
</ul>
</div>
var navList = angular.module('navList', []);
navList.controller('navCtrl', ['$scope', '$location', function ($scope, $location) {
$scope.navClass = function (page) {
var currentRoute = $location.path().substring(1) || 'home';
return page === currentRoute ? 'active' : '';
};
}]);
I don't want this nav on all the pages. What is best solution to handle this situation? Should I show hide DOM element or do I need to remove it when not required?
It's entirely up to you. As #Chandermani said, there's not problem hiding it if your DOM is small. This is how most web-apps that have a fluid layout work. And given the size of your navigation, that's really not going to pose much of a problem.
If you did want to remove it entirely though (which is also fine) you could get angular to do this with the ng-switch directive. On your outer element that contains the code you posted, you add the switch, then on the well class element above, you add your condition, so for example, you may have
<div class="wrapper" ng-switch="smallScreen" ng-app="navList">
<div class="well sidebar-nav" ng-switch-when="true">
<ul class="nav nav-list" ng-controller="navCtrl">
<li ng-class="navClass('home')"><a href='#/home'>Home</a></li>
<li ng-class="navClass('about')"><a href='#/about'>About Us</a></li>
<li ng-class="navClass('contact')"><a href='#/contact'>Contact Us</a></li>
</ul>
</div>
</div>
Then in your controller you'll need a scope variable called smallScreen which you set to true or false depending on whether you want to see it.
On another note, it's unusual to have the ng-app directive attached to a menu or was this just for demonstration?

How to set bootstrap navbar active class with Angular JS?

If I have a navbar in bootstrap with the items
Home | About | Contact
How do I set the active class for each menu item when they are active? That is, how can I set class="active" when the angular route is at
#/ for home
#/about for the about page
#/contact for the contact page
A very elegant way is to use ng-controller to run a single controller outside of the ng-view:
<div class="collapse navbar-collapse" ng-controller="HeaderController">
<ul class="nav navbar-nav">
<li ng-class="{ active: isActive('/')}">Home</li>
<li ng-class="{ active: isActive('/dogs')}">Dogs</li>
<li ng-class="{ active: isActive('/cats')}">Cats</li>
</ul>
</div>
<div ng-view></div>
and include in controllers.js:
function HeaderController($scope, $location)
{
$scope.isActive = function (viewLocation) {
return viewLocation === $location.path();
};
}
I just wrote a directive to handle this, so you can simply add the attribute bs-active-link to the parent <ul> element, and any time the route changed, it will find the matching link, and add the active class to the corresponding <li>.
You can see it in action here: http://jsfiddle.net/8mcedv3b/
Example HTML:
<ul class="nav navbar-nav" bs-active-link>
<li>Home</li>
<li>Contact</li>
</ul>
Javascript:
angular.module('appName')
.directive('bsActiveLink', ['$location', function ($location) {
return {
restrict: 'A', //use as attribute
replace: false,
link: function (scope, elem) {
//after the route has changed
scope.$on("$routeChangeSuccess", function () {
var hrefs = ['/#' + $location.path(),
'#' + $location.path(), //html5: false
$location.path()]; //html5: true
angular.forEach(elem.find('a'), function (a) {
a = angular.element(a);
if (-1 !== hrefs.indexOf(a.attr('href'))) {
a.parent().addClass('active');
} else {
a.parent().removeClass('active');
};
});
});
}
}
}]);
You can have a look at AngularStrap, the navbar directive seems to be what you are looking for:
https://github.com/mgcrea/angular-strap/blob/master/src/navbar/navbar.js
.directive('bsNavbar', function($location) {
'use strict';
return {
restrict: 'A',
link: function postLink(scope, element, attrs, controller) {
// Watch for the $location
scope.$watch(function() {
return $location.path();
}, function(newValue, oldValue) {
$('li[data-match-route]', element).each(function(k, li) {
var $li = angular.element(li),
// data('match-rout') does not work with dynamic attributes
pattern = $li.attr('data-match-route'),
regexp = new RegExp('^' + pattern + '$', ['i']);
if(regexp.test(newValue)) {
$li.addClass('active');
} else {
$li.removeClass('active');
}
});
});
}
};
});
To use this directive:
Download AngularStrap from http://mgcrea.github.io/angular-strap/
Include the script on your page after bootstrap.js:
<script src="lib/angular-strap.js"></script>
Add the directives to your module:
angular.module('myApp', ['$strap.directives'])
Add the directive to your navbar:
<div class="navbar" bs-navbar>
Add regexes on each nav item:
<li data-match-route="/about">About</li>
Here's a simple approach that works well with Angular.
<ul class="nav navbar-nav">
<li ng-class="{ active: isActive('/View1') }">View 1</li>
<li ng-class="{ active: isActive('/View2') }">View 2</li>
<li ng-class="{ active: isActive('/View3') }">View 3</li>
</ul>
Within your AngularJS controller:
$scope.isActive = function (viewLocation) {
var active = (viewLocation === $location.path());
return active;
};
If you are working with Angular router, the RouterLinkActive
directive can be used really elegantly:
<ul class="navbar-nav">
<li class="nav-item"><a class="nav-link" routerLink="home" routerLinkActive="active">Home</a></li>
<li class="nav-item"><a class="nav-link" routerLink="gallery" routerLinkActive="active">Gallery</a></li>
<li class="nav-item"><a class="nav-link" routerLink="pricing" routerLinkActive="active">Prices</a></li>
<li class="nav-item"><a class="nav-link" routerLink="contact" routerLinkActive="active">Contact</a></li>
</ul>
First and foremost, this problem can be solved in a lot of ways. This way might not be the most elegant, but it cerntainly works.
Here is a simple solution you should be able to add to any project. You can just add a "pageKey" or some other property when you configure your route that you can use to key off of. Additionally, you can implement a listener on the $routeChangeSuccess method of the $route object to listen for the successful completion of a route change.
When your handler fires you get the page key, and use that key to locate elements that need to be "ACTIVE" for this page, and you apply the ACTIVE class.
Keep in mind you need a way to make ALL the elements "IN ACTIVE". As you can see i'm using the .pageKey class on my nav items to turn them all off, and I'm using the .pageKey_{PAGEKEY} to individually turn them on. Switching them all to inactive, would be considered a naive approach, potentially you'd get better performance by using the previous route to make only active items inactive, or you could alter the jquery selector to only select active items to be made inactive. Using jquery to select all active items is probably the best solution because it ensures everything is cleaned up for the current route in case of any css bugs that might have been present on the previous route.
Which would mean changing this line of code:
$(".pagekey").toggleClass("active", false);
to this one
$(".active").toggleClass("active", false);
Here is some sample code:
Given a bootstrap navbar of
<div class="navbar navbar-inverse">
<div class="navbar-inner">
<a class="brand" href="#">Title</a>
<ul class="nav">
<li>Home</li>
<li>Page 1 Create</li>
<li>Page 1 Edit</li>
<li>Page 1 Published</li>
</ul>
</div>
</div>
And an angular module and controller like the following:
<script type="text/javascript">
function Ctrl($scope, $http, $routeParams, $location, $route) {
}
angular.module('BookingFormBuilder', []).
config(function ($routeProvider, $locationProvider) {
$routeProvider.
when('/', {
template: 'I\'m on the home page',
controller: Ctrl,
pageKey: 'HOME' }).
when('/page1/create', {
template: 'I\'m on page 1 create',
controller: Ctrl,
pageKey: 'CREATE' }).
when('/page1/edit/:id', {
template: 'I\'m on page 1 edit {id}',
controller: Ctrl, pageKey: 'EDIT' }).
when('/page1/published/:id', {
template: 'I\'m on page 1 publish {id}',
controller: Ctrl, pageKey: 'PUBLISH' }).
otherwise({ redirectTo: '/' });
$locationProvider.hashPrefix("!");
}).run(function ($rootScope, $http, $route) {
$rootScope.$on("$routeChangeSuccess",
function (angularEvent,
currentRoute,
previousRoute) {
var pageKey = currentRoute.pageKey;
$(".pagekey").toggleClass("active", false);
$(".pagekey_" + pageKey).toggleClass("active", true);
});
});
</script>
You can actually use angular-ui-utils' ui-route directive:
<a ui-route ng-href="/">Home</a>
<a ui-route ng-href="/about">About</a>
<a ui-route ng-href="/contact">Contact</a>
or:
Header Controller
/**
* Header controller
*/
angular.module('myApp')
.controller('HeaderCtrl', function ($scope) {
$scope.menuItems = [
{
name: 'Home',
url: '/',
title: 'Go to homepage.'
},
{
name: 'About',
url: '/about',
title: 'Learn about the project.'
},
{
name: 'Contact',
url: '/contact',
title: 'Contact us.'
}
];
});
Index page
<!-- index.html: -->
<div class="header" ng-controller="HeaderCtrl">
<ul class="nav navbar-nav navbar-right">
<li ui-route="{{menuItem.url}}" ng-class="{active: $uiRoute}"
ng-repeat="menuItem in menuItems">
<a ng-href="#{{menuItem.url}}" title="{{menuItem.title}}">
{{menuItem.name}}
</a>
</li>
</ul>
</div>
If you're using ui-utils, you may also be interested in ui-router for managing partial/nested views.
I find all of these answers a bit over complicated for me, sorry. So I have created a small directive that should work on a per navbar basis:
app.directive('activeLink', function () {
return {
link: function (scope, element, attrs) {
element.find('.nav a').on('click', function () {
angular.element(this)
.parent().siblings('.active')
.removeClass('active');
angular.element(this)
.parent()
.addClass('active');
});
}
};
});
Usage:
<ul class="nav navbar-nav navbar-right" active-link>
<li class="nav active">Home</li>
<li class="nav">Foo</li>
<li class="nav">Bar</li>
</ul>
I use ng-class directive with $location to achieve it.
<ul class="nav">
<li data-ng-class="{active: ($location.path() == '/') }">
Carpeta Amarilla
</li>
<li class="dropdown" data-ng-class="{active: ($location.path() == '/auditoria' || $location.path() == '/auditoria/todos') }">
<a class="dropdown-toggle" data-toggle="dropdown" href="#">
Auditoria
<b class="caret"></b>
</a>
<ul class="dropdown-menu pull-right">
<li data-ng-class="{active: ($location.path() == '/auditoria') }">
Por Legajo
</li>
<li data-ng-class="{active: ($location.path() == '/auditoria/todos') }">
General
</li>
</ul>
</li>
</ul>
It requires the navbar to be inside a main Controller with access to $location service like this:
bajasApp.controller('MenuCntl', ['$scope','$route', '$routeParams', '$location',
function MenuCntl($scope, $route, $routeParams, $location) {
$scope.$route = $route;
$scope.$location = $location;
$scope.$routeParams = $routeParams;
}]);
If you use ui-router, the following example should satisfy your needs based on #DanPantry's comment on the accepted answer without adding any controller-side code:
<div class="collapse navbar-collapse" ng-controller="HeaderController">
<ul class="nav navbar-nav">
<li ui-sref-active="active"><a ui-sref="app.home()" href="/">Home</a></li>
<li ui-sref-active="active"><a ui-sref="app.dogs()" href="/dogs">Dogs</a></li>
<li ui-sref-active="active"><a ui-sref="app.cats()" href="/cats">Cats</a></li>
</ul>
</div>
<div ng-view></div>
You can check the docs for more info on it.
You can achieve this with a conditional in an angular expression, such as:
link
That being said, I do find an angular directive to be the more "proper" way of doing it, even though outsourcing a lot of this mini-logic can somewhat pollute your code base.
I use conditionals for GUI styling every once in a while during development, because it's a little quicker than creating directives. I couldn't tell you an instance though in which they actually remained in the code base for long. In the end I either turn it into a directive or find a better way to solve the problem.
If you would rather not use AngularStrap then this directive should do the trick!. This is a modification of https://stackoverflow.com/a/16231859/910764.
JavaScript
angular.module('myApp').directive('bsNavbar', ['$location', function ($location) {
return {
restrict: 'A',
link: function postLink(scope, element) {
scope.$watch(function () {
return $location.path();
}, function (path) {
angular.forEach(element.children(), (function (li) {
var $li = angular.element(li),
regex = new RegExp('^' + $li.attr('data-match-route') + '$', 'i'),
isActive = regex.test(path);
$li.toggleClass('active', isActive);
}));
});
}
};
}]);
HTML
<ul class="nav navbar-nav" bs-navbar>
<li data-match-route="/home">Home</li>
<li data-match-route="/about">About</li>
</ul>
Note: The above HTML classes assume you are using Bootstrap 3.x
Heres my take on it. A little of a combination of answers found on this post. I had a slightly different case, so my solution involves separating the menu into its own template to be used within the Directive Definition Ojbect then add my navbar to the page I needed it on. Basically, I had a login page that I didnt want to include my menu on, so I used ngInclude and insert this directive when logged in:
DIRECTIVE:
module.directive('compModal', function(){
return {
restrict: 'E',
replace: true,
transclude: true,
scope: true,
templateUrl: 'templates/menu.html',
controller: function($scope, $element, $location){
$scope.isActive = function(viewLocation){
var active = false;
if(viewLocation === $location.path()){
active = true;
}
return active;
}
}
}
});
DIRECTIVE TEMPLATE (templates/menu.html)
<ul class="nav navbar-nav">
<li ng-class="{ active: isActive('/View1') }">View 1</li>
<li ng-class="{ active: isActive('/View2') }">View 2</li>
<li ng-class="{ active: isActive('/View3') }">View 3</li>
</ul>
HTML WHICH INCLUDES THE DIRECTIVE
<comp-navbar/>
Hope this helps
Extending myl answer, I needed this to handle an structure like this.
-index
-events<-active
---event-list
---event-edit
---event-map <-clicked
-places
---place-list
---place-edit
---place-map
so instead of matching, I had to use indexOf, in order to validate children links which are formatted to match the condition. So for 'events':
<li ng-class="{ active: isActive('/event')}" class="divider-vertical dropdown">
function NavController($scope, $location) {
$scope.isActive = function (viewLocation) {
var s=false;
if($location.path().indexOf(viewLocation) != -1){
s = true;
}
return s;
};}
This is a simple solution
<ul class="nav navbar-nav navbar-right navbar-default menu">
<li ng-class="menuIndice == 1 ? 'active':''">
<a ng-click="menuIndice = 1" href="#/item1">item1</a>
</li>
<li ng-class="menuIndice == 2 ? 'active':''">
<a ng-click="menuIndice = 2" href="#/item2">item2</a>
</li>
<li ng-class="menuIndice == 3 ? 'active':''">
<a ng-click="menuIndice = 3" href="#/item3">item3</a>
</li>
</ul>
Use an object as a switch variable.
You can do this inline quite simply with:
<ul class="nav navbar-nav">
<li ng-class="{'active':switch.linkOne}" ng-click="switch = {linkOne: true}">Link One</li>
<li ng-class="{'active':switch.linkTwo}" ng-click="switch = {link-two: true}">Link Two</li>
</ul>
Each time you click on a link the switch object is replaced by a new object where only the correct switch object property is true. The undefined properties will evaluate as false and so the elements which depend on them will not have the active class assigned.
In conjunction with #Olivier's AngularStrap answer, I also implemented kevinknelson's answer from: https://github.com/twbs/bootstrap/issues/9013.
Natively, the Bootstrap3 navbar was not designed for a single-page (eg Angular) application and thus the menu when on a small screen was not collapsing upon click.
JavaScript
/**
* Main AngularJS Web Application
*/
var app = angular.module('yourWebApp', [
'ngRoute'
]);
/**
* Setup Main Menu
*/
app.controller('MainNavCtrl', [ '$scope', '$location', function ( $scope, $location) {
$scope.menuItems = [
{
name: 'Home',
url: '/home',
title: 'Welcome to our Website'
},
{
name: 'ABOUT',
url: '/about',
title: 'Know about our work culture'
},
{
name: 'CONTACT',
url: '/contact',
title: 'Get in touch with us'
}
];
$scope.isActive = function (viewLocation) {
return viewLocation === $location.path();
};
}]);
HTML
<div class="navbar-collapse collapse" ng-controller="MainNavCtrl">
<ul id="add-magic-line" class="nav navbar-nav navbar-right">
<li data-ng-class="{current_page_item: isActive('{{ menuItem.url }}')}" data-ng-repeat="menuItem in menuItems">
<a data-ng-href="#{{menuItem.url}}" title="{{menuItem.title}}">
{{menuItem.name}}
</a>
</li>
</ul>
</div>
Thanks to #Pylinux. I have used his technique and also modified it to support "one" level of drop down menu (sub ul/li), as that is what I needed. See it in action in the fiddle link below.
Updated Fiddle based on pylinux's answer - http://jsfiddle.net/abhatia/en4qxw6g/
I made the following three changes, in order to support one level drop down menu:
1. Added a class value of dd (dropdown) for "a" element under li which needs to have sub ul list.
<li><a class="dd">This link points to #/fun5</a>
<ul>
<li>This link points to #/fun6
</li>
<li>This link points to #/fun7
</li>
<li>This link points to #/fun8
</li>
<li>This link points to #/fun9
</li>
</ul>
</li>
2. Updated Javascript to add the following new logic.
if(angular.element(li).parent().parent().children('a').hasClass("dd"))
{angular.element(li).parent().parent().children('a.dd').addClass('active');}
3. Updated CSS to the add the following:
a.active {background-color:red;}
Hopefully this will be helpful to someone looking to implement single level dropdown menu.
You can also use this active-link directive https://stackoverflow.com/a/23138152/1387163
Parent li will get active class when location matches /url:
<li>
<a href="#!/url" active-link active-link-parent>
</li>
I suggest using a directive on a link.
Here is the fiddle.
But its not perfect yet. Watch out for the hashbangs ;)
Here is the javascript for directive:
angular.module('link', []).
directive('activeLink', ['$location', function(location) {
return {
restrict: 'A',
link: function(scope, element, attrs, controller) {
var clazz = attrs.activeLink;
var path = attrs.href;
path = path.substring(1); //hack because path does not return including hashbang
scope.location = location;
scope.$watch('location.path()', function(newPath) {
if (path === newPath) {
element.addClass(clazz);
} else {
element.removeClass(clazz);
}
});
}
};
}]);
and here is how it would be used in html:
<div ng-app="link">
One
One
home
</div>
afterwards styling with css:
.active{ color:red; }
Just to add my two cents in the debate I have made a pure angular module (no jquery), and it will also work with hash urls containing data. (i.g. #/this/is/path?this=is&some=data)
You just add the module as a dependency and auto-active to one of the ancestors of the menu. Like this:
<ul auto-active>
<li>main</li>
<li>first</li>
<li>second</li>
<li>third</li>
</ul>
And the module look like this:
(function () {
angular.module('autoActive', [])
.directive('autoActive', ['$location', function ($location) {
return {
restrict: 'A',
scope: false,
link: function (scope, element) {
function setActive() {
var path = $location.path();
if (path) {
angular.forEach(element.find('li'), function (li) {
var anchor = li.querySelector('a');
if (anchor.href.match('#' + path + '(?=\\?|$)')) {
angular.element(li).addClass('active');
} else {
angular.element(li).removeClass('active');
}
});
}
}
setActive();
scope.$on('$locationChangeSuccess', setActive);
}
}
}]);
}());
* (You can of course just use the directive part)
** It's also worth noticing that this doesn't work for empty hashes (i.g. example.com/# or just example.com) it needs to have at least example.com/#/ or just example.com#/. But this happens automatically with ngResource and the like.
Here is the fiddle: http://jsfiddle.net/gy2an/8/
Here is the github: https://github.com/Karl-Gustav/autoActive
Here is my original answer: https://stackoverflow.com/a/22282124/1465640
This did the trick for me:
var domain = '{{ DOMAIN }}'; // www.example.com or dev.example.com
var domain_index = window.location.href.indexOf(domain);
var long_app_name = window.location.href.slice(domain_index+domain.length+1);
// this turns http://www.example.com/whatever/whatever to whatever/whatever
app_name = long_app_name.slice(0, long_app_name.indexOf('/'));
//now you are left off with just the first whatever which is usually your app name
then you use jquery(works with angular too) to add class active
$('nav a[href*="' + app_name+'"]').closest('li').addClass('active');
and of course the css:
.active{background:red;}
this works if you have your html like this:
<ul><li>ee</li><li>dd</li></ul>
this will atumatically add class active using the page url and color your background to red if your in www.somesite.com/ee thaen ee is the 'app' and it will be active
This is long answered but I thought I'd share my way:
.run(function($rootScope, $state){
$rootScope.$state = $state;
});
Template:
<ul class="nav navbar-nav">
<li ng-class="{ active: $state.contains('View1') }">View 1</li>
<li ng-class="{ active: $state.contains('View2') }">View 2</li>
<li ng-class="{ active: $state.contains('View3') }">View 3</li>
</ul>
For those using ui-router:
<ul class="nav navbar-nav">
<li ui-sref-active="active">View 1</li>
<li ui-sref-active="active">View 2</li>
<li ui-sref-active="active">View 3</li>
</ul>
For exact match (eg nested states?) use $state.name === 'full/path/to/state' or ui-sref-active-eq="active"
Here's another solution for anyone who might be interested. The advantage of this is it has fewer dependencies. Heck, it works without a web server too. So it's completely client-side.
HTML:
<nav class="navbar navbar-inverse" ng-controller="topNavBarCtrl"">
<div class="container-fluid">
<div class="navbar-header">
<a class="navbar-brand" href="#"><span class="glyphicon glyphicon-home" aria-hidden="true"></span></a>
</div>
<ul class="nav navbar-nav">
<li ng-click="selectTab()" ng-class="getTabClass()">Home</li>
<li ng-repeat="tab in tabs" ng-click="selectTab(tab)" ng-class="getTabClass(tab)">{{ tab }}</li>
</ul>
</div>
Explanation:
Here we are generating the links dynamically from an angularjs model using the directive ng-repeat. Magic happens with the methods selectTab() and getTabClass() defined in the controller for this navbar presented below.
Controller:
angular.module("app.NavigationControllersModule", [])
// Constant named 'activeTab' holding the value 'active'. We will use this to set the class name of the <li> element that is selected.
.constant("activeTab", "active")
.controller("topNavBarCtrl", function($scope, activeTab){
// Model used for the ng-repeat directive in the template.
$scope.tabs = ["Page 1", "Page 2", "Page 3"];
var selectedTab = null;
// Sets the selectedTab.
$scope.selectTab = function(newTab){
selectedTab = newTab;
};
// Sets class of the selectedTab to 'active'.
$scope.getTabClass = function(tab){
return selectedTab == tab ? activeTab : "";
};
});
Explanation:
selectTab() method is called using ng-click directive. So when the link is clicked, the variable selectedTab is set to the name of this link. In the HTML you can see that this method is called without any argument for Home tab so that it will be highlighted when the page loads.
The getTabClass() method is called via ng-class directive in the HTML. This method checks if the tab it is in is the same as the value of the selectedTab variable. If true, it returns "active" else returns "" which is applied as the class name by ng-class directive. Then whatever css you have applied to class active will be applied to the selected tab.
Just you'll have to add the required active-class with required color code.
Ex: ng-class="{'active': currentNavSelected}" ng-click="setNav"

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