Function queueAnimation

lib/test/angular/1.4.3/angular-animate.js:2096–2333

(element, event, options)

    };

    function queueAnimation(element, event, options) {
      var node, parent;
      element = stripCommentsFromElement(element);
      if (element) {
        node = getDomNode(element);
        parent = element.parent();
      }

      options = prepareAnimationOptions(options);

      // we create a fake runner with a working promise.
      // These methods will become available after the digest has passed
      var runner = new $$AnimateRunner();

      // there are situations where a directive issues an animation for
      // a jqLite wrapper that contains only comment nodes... If this
      // happens then there is no way we can perform an animation
      if (!node) {
        close();
        return runner;
      }

      if (isArray(options.addClass)) {
        options.addClass = options.addClass.join(' ');
      }

      if (isArray(options.removeClass)) {
        options.removeClass = options.removeClass.join(' ');
      }

      if (options.from && !isObject(options.from)) {
        options.from = null;
      }

      if (options.to && !isObject(options.to)) {
        options.to = null;
      }

      var className = [node.className, options.addClass, options.removeClass].join(' ');
      if (!isAnimatableClassName(className)) {
        close();
        return runner;
      }

      var isStructural = ['enter', 'move', 'leave'].indexOf(event) >= 0;

      // this is a hard disable of all animations for the application or on
      // the element itself, therefore  there is no need to continue further
      // past this point if not enabled
      var skipAnimations = !animationsEnabled || disabledElementsLookup.get(node);
      var existingAnimation = (!skipAnimations && activeAnimationsLookup.get(node)) || {};
      var hasExistingAnimation = !!existingAnimation.state;

      // there is no point in traversing the same collection of parent ancestors if a followup
      // animation will be run on the same element that already did all that checking work
      if (!skipAnimations && (!hasExistingAnimation || existingAnimation.state != PRE_DIGEST_STATE)) {
        skipAnimations = !areAnimationsAllowed(element, parent, event);
      }