Tips for managing both DOM manipulation and state changes at the same time in AngularJS

<div my-custom-directive>
<button id="myButton" ng-click="handleClick(mymodel.id)"><button>
</div>

app.controller('myCtrl', function($scope) {
  $scope.handleClick = function(id) {
    //Perform state change here without directly manipulating the DOM.
  }).
  directive('myCustomDirective',function() {
    return {
      link: function (scope, element) {     
        var myButton = angular.element(document.querySelector("#myButton"));

       //Avoiding duplicate event binding for myButton click event.
        myButton.one('click', function(e) {
          var url = "data://adsf"; // Generate URL based on element information.
          //Invoke $scope function to handle generated URL.
     });
   }
 }
});

In the provided code snippet, the click event for myButton is bound twice - in the ng-click attribute and within the bind function. Is there a way to prevent this behavior while adhering to AngularJS principles?

Tl;dr
What is the recommended approach and location for managing application state and interacting with the DOM concurrently within an AngularJS context.

Answer №1

I find it a bit unclear why you have reservations about using 2 event handlers. The primary purpose of the eventing system is to accommodate multiple event handlers, as long as they function independently, which appears to be the case in this scenario.

However, if these event handlers are interconnected, one alternative is for the directive to establish its own "onClick" handler.

.directive("myDirective", function(){
   return {
     scope: {
        btnClicked: "&"
     },
     link: function(scope, element) {
        //...
        myBtn.bind('click', function(e) {
           // ...
           scope.btnClicked();
           // or, for example, with url param
           // scope.btnClicked({url: url});
        });
     }
   }
});

Next, set up the handleClick like so:

<my-directive btn-clicked="handleClick(mymodel.id)">

Or, when incorporating a url parameter:

<my-directive btn-clicked="handleClick(mymodel.id, url)">

It might be more appropriate to assign a more specific name, such as "onClose" for a close (X) button, "onPlaybackStarted," "urlLoaded," etc... - I hope that clarifies things.

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