"Exploring the Power of AngularJS ngBind and Leveraging Bootstrap Switch

I am attempting to incorporate HTML for a Bootstrap Switch radio button () from within an AngularJS controller using ngBind. When I run the following code, the Bootstrap Switch radio buttons that are already present in the HTML work as expected:

$('.bs-switch').bootstrapSwitch();

However, the radio button I dynamically insert into the HTML using ngBind remains a regular radio button. This leads me to believe that it may be a timing issue.

For example:

HTML:

<!-- this doesn't get converted to a Bootstrap Switch radio button -->
<div ng-bind-html="exampleHTML"></div>

<!-- this does get converted -->
<input type="checkbox" class="bs-switch" name="my-checkbox2" checked>

Controller:

$scope.exampleHTML = $sce.trustAsHtml(
       '<input type="checkbox" class="bs-switch" ' +
       '       name="my-checkbox1" checked>'
);

$('.bs-switch').bootstrapSwitch();

When I try the following approach in the controller, the radio button inserted via ngBind is successfully converted to a Bootstrap Switch, indicating that it may indeed be a timing issue:

$scope.exampleHTML = $sce.trustAsHtml(
    '<input type="checkbox" class="bs-switch" ' +
    '       name="my-checkbox1" checked>'
);

setTimeout(function() {
    $('.bs-switch').bootstrapSwitch();
}, 1000);

Do you have any suggestions on how to achieve this without using a timeout? I am working on creating a dynamic form that is generated programmatically from a JSON config file, hence my use of ngBind to insert HTML.

UPDATE:

Here is a JSFiddle example

Answer №1

Avoid directly manipulating the DOM within the controller, and utilize directives instead:

<div ng-app="myApp">
    <div ng-controller="myController">
        <toggle-switch></toggle-switch>
    </div>  
</div>  

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

myApp.controller('myController', ['$scope',
    function($scope) {

    }
]).directive('toggleSwitch', function() {
    return {
        restrict: 'E',
        'template': '<input type="checkbox" class="bs-switch" name="my-checkbox1" checked>',
        'link': function(scope, element, attrs) {
            $(element).find('input').bootstrapSwitch();
        }
    }
});

See demo at https://jsfiddle.net/nnkypoy9/23/

Answer №2

Alright, it looks like it's working smoothly:

'use strict';

var myApp = angular.module('myApp', [
    'ngSanitize'
]);

myApp.controller('myController', ['$scope', '$sce',
    function($scope, $sce) {

        // Referencing this solution: https://stackoverflow.com/questions/29093229/how-to-call-function-when-angular-watch-cycle-or-digest-cycle-is-completed
        var isRegistered = false;
        $scope.$watch(function() {
            if (isRegistered) return;
            isRegistered = true;
            $scope.$$postDigest(function() {
                isRegistered = false;
                $('.bs-switch').bootstrapSwitch();
            });
        });

        $scope.exampleHTML = $sce.trustAsHtml(
            '<input type="checkbox" class="bs-switch" ' +
            '       name="my-checkbox2" checked>'
        );

    }
]);

https://jsfiddle.net/johndoe/abc123efg/25/

This code snippet was inspired by a question on Stack Overflow:

how to call function when angular watch cycle or digest cycle is completed

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