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基于Jquery和html5实现炫酷的3D焦点图动画

Posted in Javascript onMarch 02, 2016

这款HTML5焦点图不仅可以手动点击按钮切换图片，而且还支持自动切换图片，使用起来也相当方便。如果你需要在网站中展示产品图片，那么这款焦点图插件非常适合你。

基于Jquery和html5实现炫酷的3D焦点图动画

在线演示源码下载

HTML代码

<section id="dg-container" class="dg-container">
 <div class="dg-wrapper">
 <a href="#"><img src="images/1.jpg" alt="image01"><div>http://www.colazionedamichy.it/</div></a>
 <a href="#"><img src="images/2.jpg" alt="image02"><div>http://www.percivalclo.com/</div></a>
 <a href="#"><img src="images/3.jpg" alt="image03"><div>http://www.wanda.net/fr</div></a>
 <a href="#"><img src="images/4.jpg" alt="image04"><div>http://lifeingreenville.com/</div></a>
 <a href="#"><img src="images/5.jpg" alt="image05"><div>http://circlemeetups.com/</div></a>
 <a href="#"><img src="images/6.jpg" alt="image06"><div>http://www.castirondesign.com/</div></a>
 <a href="#"><img src="images/7.jpg" alt="image07"><div>http://www.foundrycollective.com/</div></a>
 <a href="#"><img src="images/8.jpg" alt="image08"><div>http://www.mathiassterner.com/home</div></a>
 <a href="#"><img src="images/9.jpg" alt="image09"><div>http://learnlakenona.com/</div></a>
 <a href="#"><img src="images/10.jpg" alt="image10"><div>http://www.neighborhood-studio.com/</div></a>
 <a href="#"><img src="images/11.jpg" alt="image11"><div>http://www.beckindesign.com/</div></a>
 <a href="#"><img src="images/12.jpg" alt="image12"><div>http://kicksend.com/</div></a>
 </div>
 <nav> 
 <span class="dg-prev"><</span>
 <span class="dg-next">></span>
 </nav>
</section>

CSS代码

.dg-container{
 width: 100%;
 height: 450px;
 position: relative;
}
.dg-wrapper{
 width: 481px;
 height: 316px;
 margin: 0 auto;
 position: relative;
 -webkit-transform-style: preserve-3d;
 -moz-transform-style: preserve-3d;
 -o-transform-style: preserve-3d;
 -ms-transform-style: preserve-3d;
 transform-style: preserve-3d;
 -webkit-perspective: 1000px;
 -moz-perspective: 1000px;
 -o-perspective: 1000px;
 -ms-perspective: 1000px;
 perspective: 1000px;
}
.dg-wrapper a{
 width: 482px;
 height: 316px;
 display: block;
 position: absolute;
 left: 0;
 top: 0;
 background: transparent url(../images/browser.png) no-repeat top left;
 box-shadow: 0px 10px 20px rgba(0,0,0,0.3);
}
.dg-wrapper a.dg-transition{
 -webkit-transition: all 0.5s ease-in-out;
 -moz-transition: all 0.5s ease-in-out;
 -o-transition: all 0.5s ease-in-out;
 -ms-transition: all 0.5s ease-in-out;
 transition: all 0.5s ease-in-out;
}
.dg-wrapper a img{
 display: block;
 padding: 41px 0px 0px 1px;
}
.dg-wrapper a div{
 font-style: italic;
 text-align: center;
 line-height: 50px;
 text-shadow: 1px 1px 1px rgba(255,255,255,0.5);
 color: #333;
 font-size: 16px;
 width: 100%;
 bottom: -55px;
 display: none;
 position: absolute;
}
.dg-wrapper a.dg-center div{
 display: block;
}
.dg-container nav{
 width: 58px;
 position: absolute;
 z-index: 1000;
 bottom: 40px;
 left: 50%;
 margin-left: -29px;
}
.dg-container nav span{
 text-indent: -9000px;
 float: left;
 cursor:pointer;
 width: 24px;
 height: 25px;
 opacity: 0.8;
 background: transparent url(../images/arrows.png) no-repeat top left;
}
.dg-container nav span:hover{
 opacity: 1;
}
.dg-container nav span.dg-next{
 background-position: top right;
 margin-left: 10px;
}

JavaScript代码

/**
 * jquery.gallery.js
 * Copyright 2011, Pedro Botelho / Codrops
 * Free to use under the MIT license.
 *
 * Date: Mon Jan 30 2012
 */

(function( $, undefined ) {

 /*
 * Gallery object.
 */
 $.Gallery   = function( options, element ) {

 this.$el = $( element );
 this._init( options );

 };

 $.Gallery.defaults  = {
 current : 0, // index of current item
 autoplay : false,// slideshow on / off
 interval : 2000 // time between transitions
  };

 $.Gallery.prototype = {
 _init   : function( options ) {

  this.options  = $.extend( true, {}, $.Gallery.defaults, options );

  // support for 3d / 2d transforms and transitions
  this.support3d = Modernizr.csstransforms3d;
  this.support2d = Modernizr.csstransforms;
  this.supportTrans = Modernizr.csstransitions;

  this.$wrapper = this.$el.find('.dg-wrapper');

  this.$items  = this.$wrapper.children();
  this.itemsCount = this.$items.length;

  this.$nav  = this.$el.find('nav');
  this.$navPrev = this.$nav.find('.dg-prev');
  this.$navNext = this.$nav.find('.dg-next');

  // minimum of 3 items
  if( this.itemsCount < 3 ) {

  this.$nav.remove();
  return false;

  } 

  this.current = this.options.current;

  this.isAnim  = false;

  this.$items.css({
  'opacity' : 0,
  'visibility': 'hidden'
  });

  this._validate();

  this._layout();

  // load the events
  this._loadEvents();

  // slideshow
  if( this.options.autoplay ) {

  this._startSlideshow();

  }

 },
 _validate  : function() {

  if( this.options.current < 0 || this.options.current > this.itemsCount - 1 ) {

  this.current = 0;

  } 

 },
 _layout  : function() {

  // current, left and right items
  this._setItems();

  // current item is not changed
  // left and right one are rotated and translated
  var leftCSS, rightCSS, currentCSS;

  if( this.support3d && this.supportTrans ) {

  leftCSS = {
   '-webkit-transform' : 'translateX(-350px) translateZ(-200px) rotateY(45deg)',
   '-moz-transform' : 'translateX(-350px) translateZ(-200px) rotateY(45deg)',
   '-o-transform' : 'translateX(-350px) translateZ(-200px) rotateY(45deg)',
   '-ms-transform' : 'translateX(-350px) translateZ(-200px) rotateY(45deg)',
   'transform'  : 'translateX(-350px) translateZ(-200px) rotateY(45deg)'
  };

  rightCSS = {
   '-webkit-transform' : 'translateX(350px) translateZ(-200px) rotateY(-45deg)',
   '-moz-transform' : 'translateX(350px) translateZ(-200px) rotateY(-45deg)',
   '-o-transform' : 'translateX(350px) translateZ(-200px) rotateY(-45deg)',
   '-ms-transform' : 'translateX(350px) translateZ(-200px) rotateY(-45deg)',
   'transform'  : 'translateX(350px) translateZ(-200px) rotateY(-45deg)'
  };

  leftCSS.opacity = 1;
  leftCSS.visibility = 'visible';
  rightCSS.opacity = 1;
  rightCSS.visibility = 'visible';

  }
  else if( this.support2d && this.supportTrans ) {

  leftCSS = {
   '-webkit-transform' : 'translate(-350px) scale(0.8)',
   '-moz-transform' : 'translate(-350px) scale(0.8)',
   '-o-transform' : 'translate(-350px) scale(0.8)',
   '-ms-transform' : 'translate(-350px) scale(0.8)',
   'transform'  : 'translate(-350px) scale(0.8)'
  };

  rightCSS = {
   '-webkit-transform' : 'translate(350px) scale(0.8)',
   '-moz-transform' : 'translate(350px) scale(0.8)',
   '-o-transform' : 'translate(350px) scale(0.8)',
   '-ms-transform' : 'translate(350px) scale(0.8)',
   'transform'  : 'translate(350px) scale(0.8)'
  };

  currentCSS = {
   'z-index'  : 999
  };

  leftCSS.opacity = 1;
  leftCSS.visibility = 'visible';
  rightCSS.opacity = 1;
  rightCSS.visibility = 'visible';

  }

  this.$leftItm.css( leftCSS || {} );
  this.$rightItm.css( rightCSS || {} );

  this.$currentItm.css( currentCSS || {} ).css({
  'opacity' : 1,
  'visibility': 'visible'
  }).addClass('dg-center');

 },
 _setItems  : function() {

  this.$items.removeClass('dg-center');

  this.$currentItm = this.$items.eq( this.current );
  this.$leftItm = ( this.current === 0 ) ? this.$items.eq( this.itemsCount - 1 ) : this.$items.eq( this.current - 1 );
  this.$rightItm = ( this.current === this.itemsCount - 1 ) ? this.$items.eq( 0 ) : this.$items.eq( this.current + 1 );

  if( !this.support3d && this.support2d && this.supportTrans ) {

  this.$items.css( 'z-index', 1 );
  this.$currentItm.css( 'z-index', 999 );

  }

  // next & previous items
  if( this.itemsCount > 3 ) {

  // next item
  this.$nextItm = ( this.$rightItm.index() === this.itemsCount - 1 ) ? this.$items.eq( 0 ) : this.$rightItm.next();
  this.$nextItm.css( this._getCoordinates('outright') );

  // previous item
  this.$prevItm = ( this.$leftItm.index() === 0 ) ? this.$items.eq( this.itemsCount - 1 ) : this.$leftItm.prev();
  this.$prevItm.css( this._getCoordinates('outleft') );

  }

 },
 _loadEvents  : function() {

  var _self = this;

  this.$navPrev.on( 'click.gallery', function( event ) {

  if( _self.options.autoplay ) {

   clearTimeout( _self.slideshow );
   _self.options.autoplay = false;

  }

  _self._navigate('prev');
  return false;

  });

  this.$navNext.on( 'click.gallery', function( event ) {

  if( _self.options.autoplay ) {

   clearTimeout( _self.slideshow );
   _self.options.autoplay = false;

  }

  _self._navigate('next');
  return false;

  });

  this.$wrapper.on( 'webkitTransitionEnd.gallery transitionend.gallery OTransitionEnd.gallery', function( event ) {

  _self.$currentItm.addClass('dg-center');
  _self.$items.removeClass('dg-transition');
  _self.isAnim = false;

  });

 },
 _getCoordinates : function( position ) {

  if( this.support3d && this.supportTrans ) {

  switch( position ) {
   case 'outleft':
   return {
    '-webkit-transform' : 'translateX(-450px) translateZ(-300px) rotateY(45deg)',
    '-moz-transform' : 'translateX(-450px) translateZ(-300px) rotateY(45deg)',
    '-o-transform' : 'translateX(-450px) translateZ(-300px) rotateY(45deg)',
    '-ms-transform' : 'translateX(-450px) translateZ(-300px) rotateY(45deg)',
    'transform'  : 'translateX(-450px) translateZ(-300px) rotateY(45deg)',
    'opacity'  : 0,
    'visibility' : 'hidden'
   };
   break;
   case 'outright':
   return {
    '-webkit-transform' : 'translateX(450px) translateZ(-300px) rotateY(-45deg)',
    '-moz-transform' : 'translateX(450px) translateZ(-300px) rotateY(-45deg)',
    '-o-transform' : 'translateX(450px) translateZ(-300px) rotateY(-45deg)',
    '-ms-transform' : 'translateX(450px) translateZ(-300px) rotateY(-45deg)',
    'transform'  : 'translateX(450px) translateZ(-300px) rotateY(-45deg)',
    'opacity'  : 0,
    'visibility' : 'hidden'
   };
   break;
   case 'left':
   return {
    '-webkit-transform' : 'translateX(-350px) translateZ(-200px) rotateY(45deg)',
    '-moz-transform' : 'translateX(-350px) translateZ(-200px) rotateY(45deg)',
    '-o-transform' : 'translateX(-350px) translateZ(-200px) rotateY(45deg)',
    '-ms-transform' : 'translateX(-350px) translateZ(-200px) rotateY(45deg)',
    'transform'  : 'translateX(-350px) translateZ(-200px) rotateY(45deg)',
    'opacity'  : 1,
    'visibility' : 'visible'
   };
   break;
   case 'right':
   return {
    '-webkit-transform' : 'translateX(350px) translateZ(-200px) rotateY(-45deg)',
    '-moz-transform' : 'translateX(350px) translateZ(-200px) rotateY(-45deg)',
    '-o-transform' : 'translateX(350px) translateZ(-200px) rotateY(-45deg)',
    '-ms-transform' : 'translateX(350px) translateZ(-200px) rotateY(-45deg)',
    'transform'  : 'translateX(350px) translateZ(-200px) rotateY(-45deg)',
    'opacity'  : 1,
    'visibility' : 'visible'
   };
   break;
   case 'center':
   return {
    '-webkit-transform' : 'translateX(0px) translateZ(0px) rotateY(0deg)',
    '-moz-transform' : 'translateX(0px) translateZ(0px) rotateY(0deg)',
    '-o-transform' : 'translateX(0px) translateZ(0px) rotateY(0deg)',
    '-ms-transform' : 'translateX(0px) translateZ(0px) rotateY(0deg)',
    'transform'  : 'translateX(0px) translateZ(0px) rotateY(0deg)',
    'opacity'  : 1,
    'visibility' : 'visible'
   };
   break;
  };

  }
  else if( this.support2d && this.supportTrans ) {

  switch( position ) {
   case 'outleft':
   return {
    '-webkit-transform' : 'translate(-450px) scale(0.7)',
    '-moz-transform' : 'translate(-450px) scale(0.7)',
    '-o-transform' : 'translate(-450px) scale(0.7)',
    '-ms-transform' : 'translate(-450px) scale(0.7)',
    'transform'  : 'translate(-450px) scale(0.7)',
    'opacity'  : 0,
    'visibility' : 'hidden'
   };
   break;
   case 'outright':
   return {
    '-webkit-transform' : 'translate(450px) scale(0.7)',
    '-moz-transform' : 'translate(450px) scale(0.7)',
    '-o-transform' : 'translate(450px) scale(0.7)',
    '-ms-transform' : 'translate(450px) scale(0.7)',
    'transform'  : 'translate(450px) scale(0.7)',
    'opacity'  : 0,
    'visibility' : 'hidden'
   };
   break;
   case 'left':
   return {
    '-webkit-transform' : 'translate(-350px) scale(0.8)',
    '-moz-transform' : 'translate(-350px) scale(0.8)',
    '-o-transform' : 'translate(-350px) scale(0.8)',
    '-ms-transform' : 'translate(-350px) scale(0.8)',
    'transform'  : 'translate(-350px) scale(0.8)',
    'opacity'  : 1,
    'visibility' : 'visible'
   };
   break;
   case 'right':
   return {
    '-webkit-transform' : 'translate(350px) scale(0.8)',
    '-moz-transform' : 'translate(350px) scale(0.8)',
    '-o-transform' : 'translate(350px) scale(0.8)',
    '-ms-transform' : 'translate(350px) scale(0.8)',
    'transform'  : 'translate(350px) scale(0.8)',
    'opacity'  : 1,
    'visibility' : 'visible'
   };
   break;
   case 'center':
   return {
    '-webkit-transform' : 'translate(0px) scale(1)',
    '-moz-transform' : 'translate(0px) scale(1)',
    '-o-transform' : 'translate(0px) scale(1)',
    '-ms-transform' : 'translate(0px) scale(1)',
    'transform'  : 'translate(0px) scale(1)',
    'opacity'  : 1,
    'visibility' : 'visible'
   };
   break;
  };

  }
  else {

  switch( position ) {
   case 'outleft' : 
   case 'outright' : 
   case 'left' : 
   case 'right' :
   return {
    'opacity'  : 0,
    'visibility' : 'hidden'
   };
   break;
   case 'center' :
   return {
    'opacity'  : 1,
    'visibility' : 'visible'
   };
   break;
  };

  }

 },
 _navigate  : function( dir ) {

  if( this.supportTrans && this.isAnim )
  return false;

  this.isAnim = true;

  switch( dir ) {

  case 'next' :

   this.current = this.$rightItm.index();

   // current item moves left
   this.$currentItm.addClass('dg-transition').css( this._getCoordinates('left') );

   // right item moves to the center
   this.$rightItm.addClass('dg-transition').css( this._getCoordinates('center') ); 

   // next item moves to the right
   if( this.$nextItm ) {

   // left item moves out
   this.$leftItm.addClass('dg-transition').css( this._getCoordinates('outleft') );

   this.$nextItm.addClass('dg-transition').css( this._getCoordinates('right') );

   }
   else {

   // left item moves right
   this.$leftItm.addClass('dg-transition').css( this._getCoordinates('right') );

   }
   break;

  case 'prev' :

   this.current = this.$leftItm.index();

   // current item moves right
   this.$currentItm.addClass('dg-transition').css( this._getCoordinates('right') );

   // left item moves to the center
   this.$leftItm.addClass('dg-transition').css( this._getCoordinates('center') );

   // prev item moves to the left
   if( this.$prevItm ) {

   // right item moves out
   this.$rightItm.addClass('dg-transition').css( this._getCoordinates('outright') );

   this.$prevItm.addClass('dg-transition').css( this._getCoordinates('left') );

   }
   else {

   // right item moves left
   this.$rightItm.addClass('dg-transition').css( this._getCoordinates('left') );

   }
   break; 

  };

  this._setItems();

  if( !this.supportTrans )
  this.$currentItm.addClass('dg-center');

 },
 _startSlideshow : function() {

  var _self = this;

  this.slideshow = setTimeout( function() {

  _self._navigate( 'next' );

  if( _self.options.autoplay ) {

   _self._startSlideshow();

  }

  }, this.options.interval );

 },
 destroy  : function() {

  this.$navPrev.off('.gallery');
  this.$navNext.off('.gallery');
  this.$wrapper.off('.gallery');

 }
 };

 var logError  = function( message ) {
 if ( this.console ) {
  console.error( message );
 }
 };

 $.fn.gallery  = function( options ) {

 if ( typeof options === 'string' ) {

  var args = Array.prototype.slice.call( arguments, 1 );

  this.each(function() {

  var instance = $.data( this, 'gallery' );

  if ( !instance ) {
   logError( "cannot call methods on gallery prior to initialization; " +
   "attempted to call method '" + options + "'" );
   return;
  }

  if ( !$.isFunction( instance[options] ) || options.charAt(0) === "_" ) {
   logError( "no such method '" + options + "' for gallery instance" );
   return;
  }

  instance[ options ].apply( instance, args );

  });

 } 
 else {

  this.each(function() {

  var instance = $.data( this, 'gallery' );
  if ( !instance ) {
   $.data( this, 'gallery', new $.Gallery( options, this ) );
  }
  });

 }

 return this;

 };

})( jQuery );

希望本文所述对大家学习javascript程序设计有所帮助。

基于Jquery和html5实现炫酷的3D焦点图动画

- Author -

lijiao

声明：登载此文出于传递更多信息之目的，并不意味着赞同其观点或证实其描述。

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