Function prepareInAnimation

test/angular/1.5/angular-animate.js:1674–1689

()

      }

      function prepareInAnimation() {
        var endingClasses = filterCssClasses(getClassVal(inAnchor));
        var toAdd = getUniqueValues(endingClasses, startingClasses);
        var toRemove = getUniqueValues(startingClasses, endingClasses);

        var animator = $animateCss(clone, {
          to: calculateAnchorStyles(inAnchor),
          addClass: NG_IN_ANCHOR_CLASS_NAME + ' ' + toAdd,
          removeClass: NG_OUT_ANCHOR_CLASS_NAME + ' ' + toRemove,
          delay: true
        });

        // read the comment within `prepareRegularAnimation` to understand
        // why this check is necessary
        return animator.$$willAnimate ? animator : null;
      }

      function end() {
        clone.remove();