How to manipulate the <title> of an AngularJS single page app?
Question
I have a single-page AngularJS app. The index.html file looks like this:
<html ng-app="myApp" ng-controller="MyCtrl as myctrl">
<head>
<link rel="stylesheet" href="my-style-sheet.css">
<title>{{myctrl.title}}</title>
</head>
<body>
<div class="container">
<ol>
<li><a ui-sref="stateA">StateA</a></li>
<li><a ui-sref="stateB">StateB</a></li>
</ol>
<div ui-view></div>
</div>
<script src="my-app.js"></script>
</body>
</html>
As the user clicks on the StateA or StateB links, the page displays the content of those pages in place of <div ui-view></div> . Terrific.
As the user clicks around, the displayed content changes. I need the title of the page to change too. Currently it gets the title from the controller MyCtrl like this: <title>{{myctrl.title}}</title> . But when the user clicks those links, those states each have their own controllers. So I cannot use <title>{{myctrl.title}}</title> .
How can I update the title when various states the user clicks on have different controllers?
2 answers
solution1
0 2016-11-04 04:45:28
You can attach some data to each state of your routes, like a value that can be used to set the title of the page.
.state('test', {
url: '/test',
templateUrl: '/templates/test.html',
data: {
title: 'test title'
}
})
Then write a directive to read the title. You can check to see if the required data is available on the state you are going to, and attach the whole thing to $stateChangeSuccess event.
function dynamicTitle($rootScope, $timeout) {
return {
link: function(scope, el) {
$rootScope.$on('$stateChangeSuccess', function(event, toState) {
var title = (toState.data && toState.data.title)
? toState.data.title
: 'Default title';
$timeout(function() {
el.text(title);
}, 0, false);
};);
}
};
}
angular.module('myApp').directive('dynamicTitle', dynamicTitle);
And attach it to your <title>
<title dynamic-title></title>
solution2
0 2016-11-04 04:54:11
You can create an AngularJS factory, inject it, modify it by calling 'Title.setTitle()' from controllers
<html ng-app="app" ng-controller="Ctrl">
<head>
<title>{{ Title.title() }}</title>
app.factory('Title', function() {
var title = 'Hello';
return {
title: function() { return title; },
setTitle: function(newTitle) { title = newTitle }
};
});
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