酷炫jQuery全屏3D焦点图动画效果

<div class="wrapper">

</div>

<div id="pxs_container" class="pxs_container">
 <div class="pxs_bg">
 <div class="pxs_bg1"></div>
 <div class="pxs_bg2"></div>
 <div class="pxs_bg3"></div>
 </div>
 <div class="pxs_loading">Loading images...</div>
 <div class="pxs_slider_wrapper">
 <ul class="pxs_slider">
  <li><img src="images/1.jpg" alt="First Image" /></li>
  <li><img src="images/2.jpg" alt="Second Image" /></li>
  <li><img src="images/3.jpg" alt="Third Image" /></li>
  <li><img src="images/4.jpg" alt="Forth Image" /></li>
  <li><img src="images/5.jpg" alt="Fifth Image" /></li>
  <li><img src="images/6.jpg" alt="Sixth Image" /></li>
 </ul>
 <div class="pxs_navigation">
  <span class="pxs_next"></span>
  <span class="pxs_prev"></span>
 </div>
 <ul class="pxs_thumbnails">
  <li><img src="images/thumbs/1.jpg" alt="First Image" /></li>
  <li><img src="images/thumbs/2.jpg" alt="Second Image" /></li>
  <li><img src="images/thumbs/3.jpg" alt="Third Image" /></li>
  <li><img src="images/thumbs/4.jpg" alt="Forth Image" /></li>
  <li><img src="images/thumbs/5.jpg" alt="Fifth Image" /></li>
  <li><img src="images/thumbs/6.jpg" alt="Sixth Image" /></li>
 </ul>
 </div>
</div>

(function($) {
 $.fn.parallaxSlider = function(options) {
 var opts = $.extend({}, $.fn.parallaxSlider.defaults, options);
 return this.each(function() {
  var $pxs_container = $(this),
  o   = $.meta ? $.extend({}, opts, $pxs_container.data()) : opts;

  //the main slider
  var $pxs_slider = $('.pxs_slider',$pxs_container),
  //the elements in the slider
  $elems  = $pxs_slider.children(),
  //total number of elements
  total_elems = $elems.length,
  //the navigation buttons
  $pxs_next = $('.pxs_next',$pxs_container),
  $pxs_prev = $('.pxs_prev',$pxs_container),
  //the bg images
  $pxs_bg1 = $('.pxs_bg1',$pxs_container),
  $pxs_bg2 = $('.pxs_bg2',$pxs_container),
  $pxs_bg3 = $('.pxs_bg3',$pxs_container),
  //current image
  current  = 0,
  //the thumbs container
  $pxs_thumbnails = $('.pxs_thumbnails',$pxs_container),
  //the thumbs
  $thumbs  = $pxs_thumbnails.children(),
  //the interval for the autoplay mode
  slideshow,
  //the loading image
  $pxs_loading = $('.pxs_loading',$pxs_container),
  $pxs_slider_wrapper = $('.pxs_slider_wrapper',$pxs_container);

  //first preload all the images
  var loaded = 0,
  $images = $pxs_slider_wrapper.find('img');

  $images.each(function(){
  var $img = $(this);
  $('<img/>').load(function(){
   ++loaded;
   if(loaded == total_elems*2){
   $pxs_loading.hide();
   $pxs_slider_wrapper.show();

   //one images width (assuming all images have the same sizes)
   var one_image_w = $pxs_slider.find('img:first').width();

   /*
   need to set width of the slider,
   of each one of its elements, and of the
   navigation buttons
    */
   setWidths($pxs_slider,
   $elems,
   total_elems,
   $pxs_bg1,
   $pxs_bg2,
   $pxs_bg3,
   one_image_w,
   $pxs_next,
   $pxs_prev);

   /*
    set the width of the thumbs
    and spread them evenly
    */
   $pxs_thumbnails.css({
    'width'  : one_image_w + 'px',
    'margin-left' : -one_image_w/2 + 'px'
   });
   var spaces = one_image_w/(total_elems+1);
   $thumbs.each(function(i){
    var $this = $(this);
    var left = spaces*(i+1) - $this.width()/2;
    $this.css('left',left+'px');

    if(o.thumbRotation){
    var angle = Math.floor(Math.random()*41)-20;
    $this.css({
     '-moz-transform' : 'rotate('+ angle +'deg)',
     '-webkit-transform' : 'rotate('+ angle +'deg)',
     'transform'  : 'rotate('+ angle +'deg)'
    });
    }
    //hovering the thumbs animates them up and down
    $this.bind('mouseenter',function(){
    $(this).stop().animate({top:'-10px'},100);
    }).bind('mouseleave',function(){
    $(this).stop().animate({top:'0px'},100);
    });
   });

   //make the first thumb be selected
   highlight($thumbs.eq(0));

   //slide when clicking the navigation buttons
   $pxs_next.bind('click',function(){
    ++current;
    if(current >= total_elems)
    if(o.circular)
     current = 0;
    else{
    --current;
    return false;
    }
    highlight($thumbs.eq(current));
    slide(current,
    $pxs_slider,
    $pxs_bg3,
    $pxs_bg2,
    $pxs_bg1,
    o.speed,
    o.easing,
    o.easingBg);
   });
   $pxs_prev.bind('click',function(){
    --current;
    if(current < 0)
    if(o.circular)
     current = total_elems - 1;
    else{
    ++current;
    return false;
    }
    highlight($thumbs.eq(current));
    slide(current,
    $pxs_slider,
    $pxs_bg3,
    $pxs_bg2,
    $pxs_bg1,
    o.speed,
    o.easing,
    o.easingBg);
   });

   /*
   clicking a thumb will slide to the respective image
    */
   $thumbs.bind('click',function(){
    var $thumb = $(this);
    highlight($thumb);
    //if autoplay interrupt when user clicks
    if(o.auto)
    clearInterval(slideshow);
    current = $thumb.index();
    slide(current,
    $pxs_slider,
    $pxs_bg3,
    $pxs_bg2,
    $pxs_bg1,
    o.speed,
    o.easing,
    o.easingBg);
   });

   /*
   activate the autoplay mode if
   that option was specified
    */
   if(o.auto != 0){
    o.circular = true;
    slideshow = setInterval(function(){
    $pxs_next.trigger('click');
    },o.auto);
   }

   /*
   when resizing the window,
   we need to recalculate the widths of the
   slider elements, based on the new windows width.
   we need to slide again to the current one,
   since the left of the slider is no longer correct
    */
   $(window).resize(function(){
    w_w = $(window).width();
    setWidths($pxs_slider,$elems,total_elems,$pxs_bg1,$pxs_bg2,$pxs_bg3,one_image_w,$pxs_next,$pxs_prev);
    slide(current,
    $pxs_slider,
    $pxs_bg3,
    $pxs_bg2,
    $pxs_bg1,
    1,
    o.easing,
    o.easingBg);
   });

   }
  }).error(function(){
   alert('here')
  }).attr('src',$img.attr('src'));
  });

 });
 };

 //the current windows width
 var w_w  = $(window).width();

 var slide  = function(current,
 $pxs_slider,
 $pxs_bg3,
 $pxs_bg2,
 $pxs_bg1,
 speed,
 easing,
 easingBg){
 var slide_to = parseInt(-w_w * current);
 $pxs_slider.stop().animate({
  left : slide_to + 'px'
 },speed, easing);
 $pxs_bg3.stop().animate({
  left : slide_to/2 + 'px'
 },speed, easingBg);
 $pxs_bg2.stop().animate({
  left : slide_to/4 + 'px'
 },speed, easingBg);
 $pxs_bg1.stop().animate({
  left : slide_to/8 + 'px'
 },speed, easingBg);
 }

 var highlight = function($elem){
 $elem.siblings().removeClass('selected');
 $elem.addClass('selected');
 }

 var setWidths = function($pxs_slider,
 $elems,
 total_elems,
 $pxs_bg1,
 $pxs_bg2,
 $pxs_bg3,
 one_image_w,
 $pxs_next,
 $pxs_prev){
 /*
 the width of the slider is the windows width
 times the total number of elements in the slider
  */
 var pxs_slider_w = w_w * total_elems;
 $pxs_slider.width(pxs_slider_w + 'px');
 //each element will have a width = windows width
 $elems.width(w_w + 'px');
 /*
 we also set the width of each bg image div.
 The value is the same calculated for the pxs_slider
  */
 $pxs_bg1.width(pxs_slider_w + 'px');
 $pxs_bg2.width(pxs_slider_w + 'px');
 $pxs_bg3.width(pxs_slider_w + 'px');

 /*
 both the right and left of the
 navigation next and previous buttons will be:
 windowWidth/2 - imgWidth/2 + some margin (not to touch the image borders)
  */
 var position_nav = w_w/2 - one_image_w/2 + 3;
 $pxs_next.css('right', position_nav + 'px');
 $pxs_prev.css('left', position_nav + 'px');
 }

 $.fn.parallaxSlider.defaults = {
 auto  : 0, //how many seconds to periodically slide the content.
    //If set to 0 then autoplay is turned off.
 speed  : 1000,//speed of each slide animation
 easing  : 'jswing',//easing effect for the slide animation
 easingBg : 'jswing',//easing effect for the background animation
 circular : true,//circular slider
 thumbRotation : true//the thumbs will be randomly rotated
 };
 //easeInOutExpo,easeInBack
})(jQuery);

$(function() {
 var $pxs_container = $('#pxs_container');
 $pxs_container.parallaxSlider();
});