Display sibling element upon hovering with AngularJS

Within a single view, I have multiple instances of repeated content elements. Each content element contains an anchor element. My goal is to toggle a class on a sibling element within that specific content element when a user hovers over the anchor.

For clarity, here's a basic example of what I'm trying to achieve:

<div class="content-element">
  <div ng-class="visibleClass">
    When the user hovers over the link inside this content-element, I want it to have the 'visible' class.
  </div>
  <a ng-mouseover="" ng-mouseleave="" href="#">Mouseover</a>
</div>

My initial approach involved creating a controller to manage this behavior. However, I realized that the $scope of the controller is connected to the entire view rather than a specific content-element, making it less than ideal.

While many 'content-elements' are not dynamically generated with Angular, they are simply repeated in the template.

As a newcomer to Angular, I'm navigating this new paradigm. I can easily address this issue using traditional JavaScript techniques (event capturing, targeting elements, accessing siblings, etc.), but I recognize that this may not align with Angular best practices.

Given this context, what is the recommended Angular approach for achieving this functionality? Would implementing a custom directive be the appropriate solution?

Answer №1

To achieve a change in transparency on hover, you can create a directive with a new scope and include the following code in your HTML:

<div class="content-item">
  <div class="" ng-class="{someClass:hovered}">My transparency should change.</div>
  <a ng-mouseover="hovered = true">Mouseover me.</a>
</div>

Check out the Plunker demo

Keep in mind that when using ngRepeat, isolate scopes are automatically created, eliminating the need for the directive.

Answer №2

Custom directive that identifies sibling elements when the mouseover event occurs. This allows for manipulation of the siblings as needed:

app.directive('mousiee',function(){
  return{
    restrict: 'A',
    link: function(scope,elem,attrs){
      var siblings;
      elem.on('mouseover',function(){
        siblings = $(elem.parent()).siblings();
        console.log(siblings);
      });
    }
  };

});

http://plnkr.co/edit/gWkNpiHMUEUBwuug9C3q?p=preview

(Please note that jQuery has been included in the index.html file)

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