html5瀑布流布局代码，Metro风混搭瀑布流

html5瀑布流布局代码，Metro风混搭瀑布流
Metro风混搭瀑布流，基于HTML5和CSS3技术，所以测试时候不能使用IE系统浏览器，可以使用火狐、Safari和360极速浏览器等。瀑布流布局现在很火，一种时尚潮流的布局方式，相信寻求瀑布流布局方法的前端设计者，一定懂得瀑布流的，所以这里就不多说了。

虽然瀑布流给用户体验不错，不过对于站长来说，会损失很大一部分PV，所以我个人不怎么喜欢，嘿嘿！

<!doctype html> <html> <head> <meta charset="UTF-8" /> <title>Metro风兼搭瀑布流</title> <style> body{background:#000;} .myMetro{position:relative;overflow:hidden;zoom:1;margin:0 auto;} .MBox{float:left;} .widgetBox{position:relative;overflow:hidden;width:180px;height:160px;} .innerBox a{display:block;width:100%;height:100%;outline:none;text-decoration: none;} </style> <script> /* 格子排序 */ var metro = {}; metro.init=function(wrap){ metro.gen={w:190,h:170}; metro.wrap = wrap; metro.sizeArray= []; //格子,[1,2]就表示1X2的大格子 metro.preset(); metro.putData(wrap); }; metro.preset = function(){ metro.nameSpace= {}; metro.maxY = -1; metro.basePos = {x:0, y:0}; metro.memory = {flag:Infinity, x: Infinity, y:Infinity}; metro.row = document.documentElement.offsetWidth / metro.gen.w >> 0; metro.wrap.style.width = metro.row * metro.gen.w + "px"; }; metro.resort=function(){ metro.preset(); metro.mbox = $class("MBox"); metro.sort(metro.sizeArray); }; metro.putData = function(list){ (function setBig(){ //大格子初始化设置 var bigBox = $class("bigBox",list); if(bigBox.length==0) return false; var i = 0, nx, ny, bigBoxCont; while(i < bigBox.length){ bigBoxCont = $class("innerBox",bigBox[i]); nx = Math.ceil(bigBoxCont[0].offsetWidth / metro.gen.w); //bigBox横向占的块数 ny = Math.ceil(bigBoxCont[0].offsetHeight / metro.gen.h); bigBox[i].style.width = nx*metro.gen.w - 10 + 'px' ; bigBox[i].style.height = ny*metro.gen.h - 10 + 'px' ; i++; } })(); metro.mbox = $class("MBox",list); var i = 0 , nx, ny, tempSizeArray = []; while( i < this.mbox.length){ if( $class("bigBox",this.mbox[i]).length > 0 ){ nx = Math.ceil(this.mbox[i].offsetWidth / this.gen.w); nx = (nx > this.row) ? this.row : nx; //bigBox宽度尺寸过大 ny = Math.ceil(this.mbox[i].offsetHeight / this.gen.h); tempSizeArray.push([nx,ny]); }else{ tempSizeArray.push([1,1]); } i++; } this.sizeArray = this.sizeArray.concat(tempSizeArray); metro.sort(tempSizeArray); } metro.sort = function(size){ var x = metro.basePos.x, y = metro.basePos.y, memory = metro.memory, name; for(var n=0; n < size.length ; n++){ if(memory.flag == 0){ x = memory.x; y = memory.y; } memory.flag --; if(x > metro.row-1){ //换行 x = 0; y ++; } name = x+'_'+y; //对象属性名（反映占领的格子） if(name in this.nameSpace) { //判断属性名是否存在 n--; x++; memory.flag < Infinity && memory.flag++; continue; } if(size[n][0] * size[n][1] == 1){ //普通格子 metro.nameSpace[name]=[x,y]; //项值（反映坐标值） setPos(x,y,n); x++; } else{ //大格子 if(beOver(x,y,size[n])) { if(memory.y > y){ memory.y = y; memory.x = x; } if(memory.y < Infinity) memory.flag = 1; n--; x++; continue; } metro.nameSpace[name] = [x,y]; setPos(x,y,n); hold(x,y,size[n]); x += size[n][0]; } if(memory.flag == -1) memory = {flag:Infinity ,x: Infinity, y:Infinity}; metro.maxY = Math.max(metro.maxY, y + size[n][1]); } metro.basePos = {"x":x,"y":y} metro.memory = memory; metro.wrap.style.height= metro.gen.h * metro.maxY +'px'; function beOver(x,y,item){ //判断是否会重叠 var name; if(x + item[0] > metro.row) return true; //超出显示范围 for(var k=1; k<item[1]; k++){ name=x+'_'+(y-0+k); if(name in metro.nameSpace) return true; //左侧一列有无重叠 } for(k=1; k<item[0]; k++){ name=(x-0+k)+'_'+y; if(name in metro.nameSpace) return true; //上侧一行有无重叠 } return false; }; function hold(x,y,item){ //大格子多占的位置 for(var t=0; t < item[0]; t++) { for(var k=0; k < item[1]; k++){ name = (x+t)+'_'+(y+k); if(t==0 && k==0) continue; metro.nameSpace[name] = 0; //多占的格子无坐标值 } } }; function setPos(x,y,n){ var left = metro.gen.w * x, top = metro.gen.h * y; metro.mbox[n].style.cssText = "position:absolute;left:"+ left +"px;top:" + top + "px;"; } }; </script> </head> <body> <div id="myMetro" class="myMetro"></div> <script> function $id(o){ return document.getElementById(o); } function $class(className) { var parent = arguments[1] || document; if(parent.length && parent !== window && parent.tagName !== "select") { var nodes =[]; for(var i=0, l = parent.length; i < l; i++){ var elms = get(parent[i]); for (var j = elms.length - 1; j >= 0; j--) { nodes.push(elms[j]) }; } return nodes; }else{ return get(parent); }; function get(parent){ if(parent.getElementsByClassName){ return parent.getElementsByClassName(className); }else{ var tag = arguments[2] || '*'; var returnElements = [] var els = parent.getElementsByTagName(tag); className = className.replace(/\-/g, "\\-"); var pattern = new RegExp("(^|\\s)"+className+"(\\s|$)"); var i = 0; while(i < els.length){ if (pattern.test(els[i].className) ) { returnElements.push(els[i]); } i++; } return returnElements; } } } //随机数据 var myMetro = $id("myMetro"), colorList = ['f4b300','78ba00','2673ec','ae113d','632f00','b01e00','4e0038','c1004f','7200ac','2d004e','006ac1','001e4e','008287','004d60','004a00','00c13f','15992a','ff981d','e56c19','b81b1b','ff1d77','b81b6c','aa40ff','691bb8','1faeff','1b58b8','56c5ff','569ce3','00d8cc','00aaaa','91d100','b81b6c','e1b700','d39d09','ff76bc','e064b7','00a4a4','ff7d23','4cafb5','044d91','832772','d15a44','de971b','017802','6e2ea0'], color = colorList[0]; function createTestData(n){ var spanWrap = document.createElement("span"), content = ""; for(i = 0; i < n; i++) { color = colorList[(colorList.length * Math.random())>>0]; if(!(Math.random()*3 >> 0)){ //输出大<a href='http://www.zztuku.com/tags/模块.html' target='_blank'><u>模块</u></a>测试数据。宽高在一个范围内都是随意的，未做其他限制 height = Math.floor(Math.random()*200 + 100); width = Math.floor(Math.random()*200 + 100); content += '<div class="MBox"><div class="widgetBox bigBox" style="background:#'+color+'"><div style="width:' + width +'px;height:' + height +'px;margin:0 auto;" class="innerBox"><a href="/" target="_blank"> </a></div></div></div>'; }else{ //输出普通<a href='http://www.zztuku.com/tags/模块.html' target='_blank'><u>模块</u></a>数据 content += '<div class="MBox"><div class="widgetBox" style="background:#'+color+'"></div></div>'; } }; spanWrap.innerHTML = content; myMetro.appendChild(spanWrap); return spanWrap; } window.onload = function(){ createTestData(35); metro.init(myMetro); }; window.onresize = function(){ metro.resort(myMetro); }; window.onscroll=function(){ var scrollTop = document.body.scrollTop || document.documentElement.scrollTop, windowHeight = document.documentElement.clientHeight, documentHeight = document.body.offsetHeight; if(windowHeight + scrollTop > documentHeight - 50){ metro.putData(createTestData(15)); } } </script> </body> </html>

提示：你可以先修改部分代码再运行。

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