My application has two different views (page1 and page2), which has been configured with ui-router's stateProvider. I want to apply a css on the body based on what page I am looking at. If I am looking at page1 I want to apply class1 to the body of the page and class2 for page2.
To achieve this I am using the ng-class directive of the angularjs. The value of the ng-class directive is being set as per the current state of the ui-router.
Here is the example code for it, the problem is that the expression inside the ng-class doesn't get evaluated, so my css doesn't get applied.
Can anyone point me what I am doing wrong ?
<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title></title>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.6.2/angular.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/angular-ui-router/0.4.2/angular-ui-router.min.js"></script>
<style media="screen">
h2 {
margin: 5px 5px 5px 5px;
}
body {
display: flex;
flex-direction: column;
}
.class1 {
align-items: flex-start;
}
.class2 {
align-items: center;
}
</style>
</head>
<body ng-app="graceApp" ng-class="$state.current.data.bodyClass">
<div ui-view style="display: flex"></div>
<script>
angular
.module('graceApp', [
'ui.router'
])
.config(function ($stateProvider, $urlRouterProvider) {
$stateProvider
.state('page1', {
url: '/page1',
template: '<h2>This is page1</h2> <h2>Item1</h2> <h2>Item2</h2>',
data: {
bodyClass: 'class1'
}
})
.state('page2', {
url: '/page2',
template: '<h2>This is page2</h2> <h2>Item1</h2> <h2>Item2</h2>',
data: {
bodyClass: 'class2'
}
});
$urlRouterProvider.otherwise('/page1');
});
</script>
</body>
</html>
The $state service is not available in HTML. You just have access in the html to the variables set in the scope so a quick fix would be to set the state in the rootScope then you could access it in the HTML.
$rootScope.$state = $state;