/**
 * @author jon
 */
gallery.Transitions.extend({
  fadeslideleft: function(oldFx, newFx, oldPos, newPos){
    oldFx.options.transition = newFx.options.transition = Fx.Transitions.Cubic.easeOut;
    oldFx.options.duration = newFx.options.duration = this.options.fadeDuration;
    if (newPos > oldPos)
    {
      newFx.start({
        left: [this.galleryElement.offsetWidth, 0],
        opacity: 1
      });
      oldFx.start({opacity: [1,0]});
    } else {
      newFx.start({opacity: [0,1]});
      oldFx.start({
        left: [0, this.galleryElement.offsetWidth],
        opacity: 0
      }).chain(function(fx){fx.set({left: 0});}.pass(oldFx));
    }
  },
  continuoushorizontal: function(oldFx, newFx, oldPos, newPos){
    oldFx.options.transition = newFx.options.transition = Fx.Transitions.linear;
    if (
      ((newPos > oldPos) || ((newPos==0) && (oldPos == (this.maxIter-1) ))) &&
      (!((newPos == (this.maxIter-1 )) && (oldPos == 0)))
    ) {
      oldFx.set({opacity: 1});
      oldFx.start({
        left: [0, this.galleryElement.offsetWidth * -1]
      });
      newFx.set({opacity: 1, left: this.galleryElement.offsetWidth});
      newFx.start({
        left: [this.galleryElement.offsetWidth, 0]
      });
    } else  {
      oldFx.set({opacity: 1});
      oldFx.start({
        left: [0, this.galleryElement.offsetWidth]
      });
      newFx.set({opacity: 1, left: this.galleryElement.offsetWidth * -1});
      newFx.start({
        left: [this.galleryElement.offsetWidth * -1, 0]
      });
    }
  },
  continuousvertical: function(oldFx, newFx, oldPos, newPos){
    oldFx.options.transition = newFx.options.transition = Fx.Transitions.linear;
    if (
      ((newPos > oldPos) || ((newPos==0) && (oldPos == (this.maxIter-1) ))) &&
      (!((newPos == (this.maxIter-1 )) && (oldPos == 0)))
    ) {
      oldFx.set({opacity: 1});
      oldFx.start({
        top: [0, this.galleryElement.offsetHeight * -1]
      });
      newFx.set({opacity: 1, top: this.galleryElement.offsetHeight});
      newFx.start({
        top: [this.galleryElement.offsetHeight, 0]
      });
    } else  {
      oldFx.set({opacity: 1});
      oldFx.start({
        top: [0, this.galleryElement.offsetHeight]
      });
      newFx.set({opacity: 1, top: this.galleryElement.offsetHeight * -1});
      newFx.start({
        top: [this.galleryElement.offsetHeight * -1, 0]
      });
    }
  }
});