Using Angular templates for transcluding 'element' content

Given a custom directive called 'wrap-input':

scope: {},
transclude: 'element',
template: '<div>' +
          '<ng-transclude></ng-transclude>' +
          '</div>'

When used like this:

<input wrap-input></input>

The expected result is to have the input element transcluded and wrapped in a div, following the template. However, instead of that, a comment is left behind without being replaced. How can we get the directive to properly apply the template where the transcluded element should be?

Expected Output:

<div>
  <input wrap-input></input>  
</div>

Actual Output:

<!-- wrapInput:  -->

Answer №1

If you wish to utilize transclude: 'element' in conjunction with either template or templateUrl, it is necessary to also enable replace: true. Additional information can be found in Issue #3368.

To position the transcluded element among siblings, the transclude function must be utilized within the link instead of using ng-transclude as shown below:

.directive('wrapInput', function() {
  return {
    scope: {},
    transclude: 'element',
    replace: true,
    template: '<div>' +
        '<div>Sibling A</div>' + 
        '<div class="transclution-point"></div>' +
        '<div>Sibling B</div>' +
      '</div>',
    link: function (scope, element, attrs, controllers, transcludeFn) {
      transcludeFn(function (clone) {
        element.find('.transclution-point').replaceWith(clone);
      });
    }
  };
});

Sample plunker: http://plnkr.co/edit/tkMCZB6vxNOwSiLwYbkp?p=preview

Answer №2

To incorporate angular's `wrap` function, simply utilize it on elements as shown below:

link: function(scope, element, attributes){
    element.wrap('<div />');
}

Check out the demonstration on Fiddle: http://jsfiddle.net/fa54a/

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