<!doctype html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>
<title>瀑布流</title>
<script src="https://raw.github.com/RubyLouvre/mass-Framework/master/client/mass.js"></script>
<script>
window.onerror = function(){
location.reload();//如果报错，请它自动刷新。
}
$.require("more/random,ready,css,event",function(random){
//容器的CSS表达式，列数，每列的宽度
var Waterfall = function(expr, col, colWidth){
//构建整体轮廓
var container = this.container = $(expr);
var pw = container.width();//容器的宽
var gw = (pw - col * colWidth)/(col-1);//列间距离
this.colWidth = colWidth;
this.cols = [];
for(var i = 0; i < col ; i++){//随机生成列
this.cols[i] = $("<div class='waterfall' />").css({
position: "absolute",
top: 0,
left: (colWidth + gw) * i,
width: colWidth,
backgroundColor: random.hex()
}).appendTo(container);
}
}
Waterfall.prototype = {
//添加板块
addBlocks : function(){
for(var i = 0; i < 40; i++){//随机生成40个板砖
$("<div class='waterfall_block' />").css({
margin: 5,
width: this.colWidth - 10 ,
height: random.num(80, 300),
backgroundColor: random.hex()
}).appendTo( this.whichCol() );
}
},
//计算出最短的栏栅
whichCol:function(el, ret, h){
for(var i = 0, shortest = 0; el = this.cols[i]; i++){
h = el.height();
if(i == 0){
shortest = h;
ret = el;
}
if(h < shortest ){
shortest = h;
ret = el;
}
}
return ret;
}
};
var waterfall = new Waterfall("body",4,300)
waterfall.addBlocks();
$(window).scroll(function(){
var clientHeight = $(window).height(),
scrollTop = $(window).scrollTop(),
scrollHeight = $(document).height();
if(clientHeight + scrollTop >= scrollHeight ){
waterfall.addBlocks();
}
})
})
</script>
</head>
<body>
<p>
瀑布流 by 司徒正美
</p>
</body>
</html>