How to dynamically change header based on AngularJS partial view?

How to Dynamically Change Header Based on AngularJS Partial View 🖥️

Are you struggling to update the page title and h1 header tags based on your AngularJS partial view? 🤔 Don't worry, we've got you covered! In this blog post, we'll address this common issue and provide you with easy solutions. Let's dive in! 💪

The Problem 🧐

The challenge arises when you try to update the page title and h1 header tags based on the included view using AngularJS's ng-view. Since these tags are out of the scope of the partial view controllers, you can't directly bind them to the data set in the controllers. 😕

The Solution - Using AngularJS Services 🚀

One way to tackle this problem is by leveraging AngularJS services, specifically the $rootScope and $route services. Here's how you can modify your example to achieve the desired result: 👇

Step 1: Update your HTML to include the angular-route.js file within the <head> tag. This file is required for the $route service to work.

<html data-ng-app="myModule">
<head>
<!-- include js files -->
<script src="path/to/angular.js"></script>
<script src="path/to/angular-route.js"></script>
<title>{{ pageTitle }}</title>
</head>
<body>
<h1>{{ header }}</h1>

<div data-ng-view></div>

</body>
</html>

Step 2: Modify your JavaScript code to inject the $rootScope and $route services into your controllers and update the relevant properties:

var myModule = angular.module('myModule', ['ngRoute']);

myModule.config(['$routeProvider', function($routeProvider) {
    $routeProvider.
        when('/test1', {templateUrl: 'test1.html', controller: 'Test1Ctrl'}).
        when('/test2', {templateUrl: 'test2.html', controller: 'Test2Ctrl'}).
        otherwise({redirectTo: '/test1'});
}]);

myModule.run(['$rootScope', '$route', function($rootScope, $route) {
    $rootScope.$on('$routeChangeSuccess', function() {
         // Update the page title and header based on the current route
         $rootScope.pageTitle = $route.current.$$route.pageTitle;
         $rootScope.header = $route.current.$$route.header;
    });
}]);

function Test1Ctrl($scope, $http) {
    // Update the page title and header for Test1Ctrl
    $scope.$emit('updateTitleAndHeader', {
        pageTitle: 'Test 1',
        header: 'Test 1'
    });
}

function Test2Ctrl($scope, $http) {
    // Update the page title and header for Test2Ctrl
    $scope.$emit('updateTitleAndHeader', {
        pageTitle: 'Test 2',
        header: 'Test 2'
    });
}

Explanation and Breakdown 📚

In the modified code, we have made the following changes:

Added the ngRoute module as a dependency in the myModule declaration. This module is required for AngularJS routing to work.
Injected $rootScope and $route services into the myModule.run function. The $rootScope provides us with a global scope accessible to all controllers, and $route allows us to access information about the current route.
Added the $routeChangeSuccess event listener to the $rootScope. This event is triggered whenever a route change is successful.
Inside the event listener, we update the pageTitle and header properties of the $rootScope based on the current route. We access the route information using $route.current.$$route.
Added an updateTitleAndHeader event emitter in both Test1Ctrl and Test2Ctrl. This emitter is triggered whenever the page title and header need to be updated for a specific controller.
Passed the desired page title and header values as an object to the emitter.

By implementing these changes, your page title and header will dynamically update based on the AngularJS partial view that is currently being displayed. 🎉

Take it a Step Further 🚀

Now that you have learned how to dynamically change the header based on AngularJS partial view, why not explore further customization options? For example, you could consider dynamically changing other elements based on the current route or adding additional metadata to your page. The possibilities are endless! 💡

Have Questions or Suggestions? 💭

If you have any questions or suggestions on how to improve this solution, please feel free to leave a comment below. We'd love to hear from you! 👇

So go ahead, update your headers dynamically and make your AngularJS partial view shine! Don't forget to share this blog post with your friends and colleagues who might find it helpful. Together, let's make dynamic headers a breeze! 😎💪🔥

#KeepCoding #DynamicHeaders #AngularJS

How to dynamically change header based on AngularJS partial view?