码迷,mamicode.com
首页 > Web开发 > 详细

HTML实现滚动图片

时间:2014-08-11 17:39:42      阅读:329      评论:0      收藏:0      [点我收藏+]

标签:des   style   blog   http   color   java   os   io   

<script type="text/javascript">
var $ = function (id) {
 return "string" == typeof id ? document.getElementByIdx_x(id) : id;
};

var Extend = function(destination, source) {
 for (var property in source) {
  destination[property] = source[property];
 }
 return destination;
}

var CurrentStyle = function(element){
 return element.currentStyle || document.defaultView.getComputedStyle(element, null);
}

var Bind = function(object, fun) {
 var args = Array.prototype.slice.call(arguments).slice(2);
 return function() {
  return fun.apply(object, args.concat(Array.prototype.slice.call(arguments)));
 }
}

var Tween = {
 Quart: {
  easeOut: function(t,b,c,d){
   return -c * ((t=t/d-1)*t*t*t - 1) + b;
  }
 },
 Back: {
  easeOut: function(t,b,c,d,s){
   if (s == undefined) s = 1.70158;
   return c*((t=t/d-1)*t*((s+1)*t + s) + 1) + b;
  }
 },
 Bounce: {
  easeOut: function(t,b,c,d){
   if ((t/=d) < (1/2.75)) {
    return c*(7.5625*t*t) + b;
   } else if (t < (2/2.75)) {
    return c*(7.5625*(t-=(1.5/2.75))*t + .75) + b;
   } else if (t < (2.5/2.75)) {
    return c*(7.5625*(t-=(2.25/2.75))*t + .9375) + b;
   } else {
    return c*(7.5625*(t-=(2.625/2.75))*t + .984375) + b;
   }
  }
 }
}


//容器对象,滑动对象,切换数量
var SlideTrans = function(container, slider, count, options) {
 this._slider = $(slider);
 this._container = $(container);//容器对象
 this._timer = null;//定时器
 this._count = Math.abs(count);//切换数量
 this._target = 0;//目标值
 this._t = this._b = this._c = 0;//tween参数
 
 this.Index = 0;//当前索引
 
 this.SetOptions(options);
 
 this.Auto = !!this.options.Auto;
 this.Duration = Math.abs(this.options.Duration);
 this.Time = Math.abs(this.options.Time);
 this.Pause = Math.abs(this.options.Pause);
 this.Tween = this.options.Tween;
 this.onStart = this.options.onStart;
 this.onFinish = this.options.onFinish;
 
 var bVertical = !!this.options.Vertical;
 this._css = bVertical ? "top" : "left";//方向
 
 //样式设置
 var p = CurrentStyle(this._container).position;
 p == "relative" || p == "absolute" || (this._container.style.position = "relative");
 this._container.style.overflow = "hidden";
 this._slider.style.position = "absolute";
 
 this.Change = this.options.Change ? this.options.Change :
  this._slider[bVertical ? "offsetHeight" : "offsetWidth"] / this._count;
};
SlideTrans.prototype = {
  //设置默认属性
  SetOptions: function(options) {
 this.options = {//默认值
  Vertical: true,//是否垂直方向(方向不能改)
  Auto:  true,//是否自动
  Change:  0,//改变量
  Duration: 50,//滑动持续时间
  Time:  10,//滑动延时
  Pause:  2000,//停顿时间(Auto为true时有效)
  onStart: function(){},//开始转换时执行
  onFinish: function(){},//完成转换时执行
  Tween:  Tween.Quart.easeOut//tween算子
 };
 Extend(this.options, options || {});
  },
  //开始切换
  Run: function(index) {
 //修正index
 index == undefined && (index = this.Index);
 index < 0 && (index = this._count - 1) || index >= this._count && (index = 0);
 //设置参数
 this._target = -Math.abs(this.Change) * (this.Index = index);
 this._t = 0;
 this._b = parseInt(CurrentStyle(this._slider)[this.options.Vertical ? "top" : "left"]);
 this._c = this._target - this._b;
 
 this.onStart();
 this.Move();
  },
  //移动
  Move: function() {
 clearTimeout(this._timer);
 //未到达目标继续移动否则进行下一次滑动
 if (this._c && this._t < this.Duration) {
  this.MoveTo(Math.round(this.Tween(this._t++, this._b, this._c, this.Duration)));
  this._timer = setTimeout(Bind(this, this.Move), this.Time);
 }else{
  this.MoveTo(this._target);
  this.Auto && (this._timer = setTimeout(Bind(this, this.Next), this.Pause));
 }
  },
  //移动到
  MoveTo: function(i) {
 this._slider.style[this._css] = i + "px";
  },
  //下一个
  Next: function() {
 this.Run(++this.Index);
  },
  //上一个
  Previous: function() {
 this.Run(--this.Index);
  },
  //停止
  Stop: function() {
 clearTimeout(this._timer); this.MoveTo(this._target);
  }
};
</script>

<style type="text/css">
.container, .container img{ height:600px;width:915px;}
.container{left:50px;}
.container{border:1px solid #333;}
.container img{border:0;}
</style>

<br />
<br />

<style type="text/css">
.num{ position:absolute; right:5px; bottom:5px;}
.num li{
 float: left;
 list-style:none;
 color: #fff;
 text-align: center;
 line-height: 16px;
 width: 16px;
 height: 16px;
 font-family: Arial;
 font-size: 12px;
 cursor: pointer;
 margin: 1px;
 border: 1px solid #707070;
 background-color: #060a0b;
}
.num li.on{
 line-height: 18px;
 width: 18px;
 height: 18px;
 font-size: 14px;
 border: 0;
 background-color: #ce0609;
 font-weight: bold;
}
</style>
<div class="container" id="idContainer2">
 <table id="idSlider2" border="0" cellpadding="0" cellspacing="0">
  <tr>
   <td><a href="a/guanyufuwei"><img src="{dede:global.cfg_templets_skin/}/images/show/1.jpg"/></a></td>
   <td><a href="http://www.cnblogs.com/cloudgamer/archive/2008/12/24/Slider.html"><img src="{dede:global.cfg_templets_skin/}/images/show/3.jpg"/></a></td>
   <td><a href="http://www.cnblogs.com/cloudgamer/archive/2008/12/03/Resize.html"><img src="{dede:global.cfg_templets_skin/}/images/show/2.jpg"/></a></td>
  </tr>
 </table>
 <ul class="num" id="idNum">
 </ul>
</div>
<br />

<script>

///////////////////////////////////////////////////////////

var forEach = function(array, callback, thisObject){
 if(array.forEach){
  array.forEach(callback, thisObject);
 }else{
  for (var i = 0, len = array.length; i < len; i++) { callback.call(thisObject, array[i], i, array); }
 }
}

var st = new SlideTrans("idContainer2", "idSlider2", 3, { Vertical: false });

var nums = [];
//插入数字
for(var i = 0, n = st._count - 1; i <= n;){
 (nums[i] = $("idNum").appendChild(document.createElement_x("li"))).innerHTML = ++i;
}

forEach(nums, function(o, i){
 o.onmouseover = function(){ o.className = "on"; st.Auto = false; st.Run(i); }
 o.onmouseout = function(){ o.className = ""; st.Auto = true; st.Run(); }
})

//设置按钮样式
st.onStart = function(){
 forEach(nums, function(o, i){ o.className = st.Index == i ? "on" : ""; })
}

$("idAuto").onclick = function(){
 if(st.Auto){
  st.Auto = false; st.Stop(); this.value = "自动";
 }else{
  st.Auto = true; st.Run(); this.value = "停止";
 }
}
$("idNext").onclick = function(){ st.Next(); }
$("idPre").onclick = function(){ st.Previous(); }

$("idTween").onchange = function(){
 switch (parseInt(this.value)){
  case 2 :
   st.Tween = Tween.Bounce.easeOut; break;
  case 1 :
   st.Tween = Tween.Back.easeOut; break;
  default :
   st.Tween = Tween.Quart.easeOut;
 }
}


st.Run();
</script>

HTML实现滚动图片,布布扣,bubuko.com

HTML实现滚动图片

标签:des   style   blog   http   color   java   os   io   

原文地址:http://www.cnblogs.com/bille/p/3905057.html

(0)
(0)
   
举报
评论 一句话评论(0
登录后才能评论!
© 2014 mamicode.com 版权所有  联系我们:gaon5@hotmail.com
迷上了代码!