原生js实现照片墙效果


Posted in Javascript onOctober 13, 2020
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>照片墙一多实例演示</title>
<style type="text/css">
body,div,h2,ul,li{margin:0;padding:0;}
body{font:12px/1.5 Arail;}
.box{width:860px;margin:10px auto;background:#eee;border:1px solid #b8b8b8;overflow:hidden}
.title{height:30px;line-height:30px;font-size:14px;padding:0 15px 0 35px;border-bottom:1px solid #b8b8b8;background:#fafafa url(http://js.alixixi.com/img/mm/ico.gif) 5px 50% no-repeat;}
.title span{float:left;}
.title a{float:right;color:#06f;outline:none;}
.title a:hover{color:red;}
.box ul{float:left;padding:0 15px 15px 0;}
.box li{float:left;width:140px;height:105px;padding:6px;background:#fff;border:1px solid #c3c3c3;display:inline;margin:15px 0 0 15px;list-style:none;}
.box li img{float:left;width:140px;height:105px;}
.box li.hig{padding:5px;border:2px dashed #f30;opacity:0.5;filter:alpha(opacity=50);}
</style>
<script type="text/javascript">
//获取ID
var $ = function (id) {return typeof id === "string" ? document.getElementById(id) : id};
//获取tagName
var $$ = function (tagName, oParent) {return (oParent || document).getElementsByTagName(tagName)};
//获取class
var $$$ = function (sClass, oParent) {
 var aClass = [],
 i = 0,
 reClass = new RegExp("(\\s|^)" + sClass + "($|\\s)"),
 aElement = $$("*", oParent);
 for (i = 0; i < aElement.length; i++)reClass.test(aElement[i].className) && aClass.push(aElement[i]);
 return aClass
};
//获取元素位置
function getPos(obj) {
 var iTop = obj.offsetTop;
 var iLeft = obj.offsetLeft;
 while (obj.offsetParent)
 {
 iTop += obj.offsetParent.offsetTop;
 iLeft += obj.offsetParent.offsetLeft;
 obj = obj.offsetParent;
 }
 return {top:iTop, left:iLeft} 
};
//创建照片墙对象
var PhotoWall = function () {this.initialize.apply(this, arguments)};
PhotoWall.prototype = {
 initialize: function (obj, aData)
 {
 var oThis = this;
 this.oParent = $(obj);
 this.oUl = $$("ul", this.oParent)[0];
 this.oBtn = $$("a", this.oParent)[0];
 this.zIndex = 1;
 this.aPos = [];
 this.aData = aData;
 this.dom = document.documentElement || document.body;
 this.create();
 this.oBtn.onclick = function () {oThis.randomOrder()}
 },
 create: function ()
 {
 var aFrag = document.createDocumentFragment();
 var i = 0;
 for (i = 0; i < this.aData.length; i++)
 {
  var oLi = document.createElement("li");
  var oImg = document.createElement("img");
  oImg.src = this.aData[i];
  oLi.appendChild(oImg);
  aFrag.appendChild(oLi) 
 }
 this.oUl.appendChild(aFrag);
 this.aLi = $$("li", this.oParent);
 this.changeLayout()
 },
 changeLayout: function ()
 {
 var i = 0;
 this.oParent.style.height = this.oParent.offsetHeight - 2 + "px";
 this.aPos.length = 0;
 for (i = 0; i < this.aLi.length; i++) this.aLi[i].style.cssText = ""; 
 for (i = 0; i < this.aLi.length; i++)
 {
  this.aLi[i].index = i;
  this.aLi[i].style.top = getPos(this.aLi[i]).top + "px";
  this.aLi[i].style.left = getPos(this.aLi[i]).left + "px";
  this.aPos.push({left:getPos(this.aLi[i]).left, top:getPos(this.aLi[i]).top})
 }
 for (i = 0; i < this.aLi.length; i++)
 {
  this.aLi[i].style.position = "absolute"; 
  this.aLi[i].style.margin = "0";  
  this.drag(this.aLi[i])
 } 
 },
 drag: function (obj, handle)
 {
 var oThis = this;
 var handle = handle || obj;
 handle.style.cursor = "move";
 handle.onmousedown = function (event)
 {
  var event = event || window.event; 
  var disX = event.clientX - this.offsetLeft;
  var disY = event.clientY - this.offsetTop;
  var oNear = null;
  handle.style.zIndex = oThis.zIndex++;
  
  document.onmousemove = function (event)
  {
  var event = event || window.event;
  var iL = event.clientX - disX;
  var iT = event.clientY - disY;
  var maxL = Math.max(oThis.dom.clientWidth, oThis.dom.scrollWidth) - handle.offsetWidth;
  var maxT = Math.max(oThis.dom.clientHeight, oThis.dom.scrollHeight) - handle.offsetHeight;
  
  iL < 0 && (iL = 0);
  iT < 0 && (iT = 0);
  iL > maxL && (iL = maxL);
  iT > maxT && (iT = maxT);
    
  handle.style.left = iL + "px";
  handle.style.top = iT + "px";
  
  oNear = oThis.findNearest(obj);
  
  for (var i = 0; i < oThis.aLi.length; i++) oThis.aLi[i].className = "";
  
  oNear && (oNear.className = "hig");
  
  return false
  };
  document.onmouseup = function ()
  {
  document.onmousemove = null;
  document.onmouseup = null;
  
  if (oNear)
  {
   handle.index = [handle.index, oNear.index];
   oNear.index = handle.index[0];
   handle.index = handle.index[1];
   oNear.style.zIndex = oThis.zIndex++;
   oThis.doMove(handle, oThis.aPos[handle.index]);
   oThis.doMove(oNear, oThis.aPos[oNear.index]);   
   oNear.className = "";
  }
  else
  {
   oThis.doMove(handle, oThis.aPos[handle.index]) 
  }
  
  handle.releaseCapture && handle.releaseCapture()
  };
  this.setCapture && this.setCapture();
  return false
 };
 },
 doMove: function (obj, iTarget, callback)
 {
 var oThis = this;
 clearInterval(obj.timer);
 obj.timer = setInterval(function ()
 {
  var iCurL = getPos(obj).left;
  var iCurT = getPos(obj).top;
  var iSpeedL = (iTarget.left - iCurL) / 5;
  var iSpeedT = (iTarget.top - iCurT) / 5;
  iSpeedL = iSpeedL > 0 ? Math.ceil(iSpeedL) : Math.floor(iSpeedL);
  iSpeedT = iSpeedT > 0 ? Math.ceil(iSpeedT) : Math.floor(iSpeedT);
  
  if (iCurL == iTarget.left && iCurT == iTarget.top)
  {
  clearInterval(obj.timer);
  callback && callback() 
  }
  else
  {
  obj.style.left = iCurL + iSpeedL + "px";
  obj.style.top = iCurT + iSpeedT + "px" 
  }
 }, 30)
 },
 findNearest: function (obj)
 {
 var aDistance = [];
 var i = 0;
 for (i = 0; i < this.aLi.length; i++) aDistance[i] = this.aLi[i] == obj ? Number.MAX_VALUE : this.getDistance(obj, this.aLi[i]);
 
 var minNum = Number.MAX_VALUE;
 var minIndex = -1;
 for (i = 0; i < aDistance.length; i++) aDistance[i] < minNum && (minNum = aDistance[i], minIndex = i);
 
 return this.isButt(obj, this.aLi[minIndex]) ? this.aLi[minIndex] : null
 },
 getDistance: function(obj1, obj2)
 {
 var a = (obj1.offsetLeft + obj1.offsetWidth / 2) - (obj2.offsetLeft + obj2.offsetWidth / 2);
 var b = (obj1.offsetTop + obj1.offsetTop / 2) - (obj2.offsetTop + obj2.offsetTop / 2);
 return Math.sqrt(a * a + b * b)
 },
 isButt: function (obj1, obj2)
 {
 var l1 = obj1.offsetLeft;
 var t1 = obj1.offsetTop;
 var r1 = l1 + obj1.offsetWidth;
 var b1 = t1 + obj1.offsetHeight;
 
 var l2 = obj2.offsetLeft;
 var t2 = obj2.offsetTop;
 var r2 = l2 + obj2.offsetWidth;
 var b2 = t2 + obj2.offsetHeight;
 
 return !(r1 < l2 || b1 < t2 || r2 < l1 || b2 < t1)
 },
 randomOrder: function ()
 {
 this.aPos.sort(function () {return Math.random() > 0.5 ? 1 : -1});
 for (var i = 0; i < this.aLi.length; i++)
 {
  this.aLi[i].index = i;
  this.doMove(this.aLi[i], this.aPos[i])
 }
 }
};
window.onload = function ()
{
 var aBox = $$$("box");
 var aData = [];
 var aExample = [];
 var i = 0;
 //生成图片数据
 for (i = 0; i < 20; i++) aData[aData.length] = "http://js.alixixi.com/img/mm/" + i + ".jpg";
 //循环创建多个实例
 for (i = 0; i < aBox.length; i++)
 {
 var oExample = new PhotoWall(aBox[i], aData);
 aExample.push(oExample)
 }
 this.onresize = function ()
 {
 for (var p in aExample) aExample[p].changeLayout() 
 };
 this.onresize()
};
</script>
</head>
<body>
<div class="box">
  <h2 class="title"><span>一堆90后</span><a href="javascript:;" rel="external nofollow" rel="external nofollow" class="order">随机排序</a></h2>
  <ul></ul>
</div>
<div class="box">
  <h2 class="title"><span>一堆90后</span><a href="javascript:;" rel="external nofollow" rel="external nofollow" class="order">随机排序</a></h2>
  <ul></ul>
</div>
</body>
</html>

效果:

原生js实现照片墙效果

以上就是原生js实现照片墙效果的详细内容,更多关于js 照片墙的资料请关注三水点靠木其它相关文章!

Javascript 相关文章推荐
JQery jstree 大数据量问题解决方法
Mar 09 Javascript
探讨JavaScript中声明全局变量三种方式的异同
Dec 03 Javascript
基于BootStrap Metronic开发框架经验小结【六】对话框及提示框的处理和优化
May 12 Javascript
深入浅析jQuery对象$.html
Aug 22 Javascript
简单的js表格操作
Sep 24 Javascript
原生js实现倒计时功能(多种格式调用)
Jan 12 Javascript
ES6正则表达式的一些新功能总结
May 09 Javascript
VUE页面中加载外部HTML的示例代码
Sep 20 Javascript
微信小程序实现留言板
Oct 31 Javascript
TypeScript中的方法重载详解
Apr 12 Javascript
vue-resourc发起异步请求的方法
Feb 11 Javascript
google广告之另类js调用实现代码
Aug 22 Javascript
js轮播图之旋转木马效果
Oct 13 #Javascript
Vue中正确使用Element-UI组件的方法实例
Oct 13 #Javascript
JavaScript数组常用的增删改查与其他属性详解
Oct 13 #Javascript
JS将指定的某个字符全部转换为其他字符实例代码
Oct 13 #Javascript
JavaScript实现拖动对话框效果的实现代码
Oct 12 #Javascript
react的hooks的用法详解
Oct 12 #Javascript
微信小游戏中three.js离屏画布的示例代码
Oct 12 #Javascript
You might like
第四章 php数学运算
2011/12/30 PHP
Zend Framework数据库操作方法实例总结
2016/12/11 PHP
php mysql操作mysql_connect连接数据库实例详解
2016/12/26 PHP
学习YUI.Ext 第二天
2007/03/10 Javascript
JavaScript Event事件学习第一章 Event介绍
2010/02/07 Javascript
JQuery中的$.getJSON 使用说明
2011/03/10 Javascript
根据IP的地址,区分不同的地区,查看不同的网站页面的js代码
2013/02/26 Javascript
js中小数转换整数的方法
2014/01/26 Javascript
javascript实现的HashMap类代码
2014/06/27 Javascript
JavaScript实现N皇后问题算法谜题解答
2014/12/29 Javascript
JavaScript模板引擎用法实例
2015/07/10 Javascript
js实现文本框只允许输入数字并限制数字大小的方法
2015/08/19 Javascript
js淡入淡出的图片轮播效果代码分享
2015/08/24 Javascript
Angular4学习教程之HTML属性绑定的方法
2018/01/04 Javascript
对vue里函数的调用顺序介绍
2018/03/17 Javascript
vue绑定数字类型 value为数字的实例
2020/08/31 Javascript
微信小程序实现文件预览
2020/10/22 Javascript
Python的Bottle框架的一些使用技巧介绍
2015/04/08 Python
Python科学计算之NumPy入门教程
2017/01/15 Python
Python实现变量数值交换及判断数组是否含有某个元素的方法
2017/09/18 Python
python模拟事件触发机制详解
2018/01/19 Python
python提取包含关键字的整行数据方法
2018/12/11 Python
Python 虚拟空间的使用代码详解
2019/06/10 Python
远程部署工具Fabric详解(支持Python3)
2019/07/04 Python
利用Python的turtle库绘制玫瑰教程
2019/11/23 Python
python实现数据结构中双向循环链表操作的示例
2020/10/09 Python
使用Python爬虫爬取小红书完完整整的全过程
2021/01/19 Python
几个解决兼容IE6\7\8不支持html5标签的几个方法
2013/01/07 HTML / CSS
html5简介及新增功能介绍
2020/05/18 HTML / CSS
Dr.Jart+美国官网:韩国药妆品牌
2019/01/18 全球购物
什么是用户模式(User Mode)与内核模式(Kernel Mode) ?
2015/09/07 面试题
个人自我评价范文
2014/02/05 职场文书
工程部主管岗位职责
2015/02/12 职场文书
vue前端工程的搭建
2021/03/31 Vue.js
Django操作cookie的实现
2021/05/26 Python
Redis实现一个账号只能登录一个设备
2022/04/19 Redis