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index.html
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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>散列画廊效果</title>
<style type="text/css">
*{margin: 0;padding: 0;}
body{
color: #555;
font-size: 14px;
font-family: "Avenir Next","Lantinghei SC";
-webkit-font-smoothing:antialiased;
}
.wrap{
width: 100%;
height: 600px;
position: absolute;
top: 50%;
margin-top: -300px;
overflow: hidden;
background-color: gray;
-webkit-perspective:800px;
-moz-perspective:800px;
-ms-perspective:800px;
-o-perspective:800px;
}
/*海报样式*/
.photo{
width: 260px;
height: 320px;
position: absolute;
z-index: 1;
box-shadow: 0 0 1px rgba(0,0,0,.01);
transition: all 1s;
}
.photo .side{
width: 100%;
height: 100%;
background-color: #eee;
position: absolute;
top: 0;
right: 0;
padding: 20px;
box-sizing: border-box;
}
.photo .side-front{}
.photo .side-front .image{
width: 100%;
height: 250px;
line-height: 250px;
overflow: hidden;
}
.photo .side-front .image img{
width: 100%;
}
.photo .side-front .caption{
font-size: 16px;
line-height: 25px;
text-align: center;
}
.photo .side-back{}
.photo .side-back .desc{
color: #666;
font-size: 14px;
line-height: 1.5em;
}
/*当前选中海报样式*/
.photo-center{
top: 50%;
left: 50%;
margin:-160px 0 0 -130px;
z-index: 999;
}
/*防止居中样式消失后画面闪动*/
.photo{
top: 50%;
left: 50%;
margin:-160px 0 0 -130px;
}
/*海报翻转*/
.photo-wrap{
position: absolute;
width: 100%;
height: 100%;
transform-style:preserve-3d;
transition:all 1s;
transform-origin:0% 50%;
}
.photo-wrap .side{
backface-visibility:hidden;
}
.photo-wrap .side-front{
transform:rotateY(0deg);
}
.photo-wrap .side-back{
transform:rotateY(180deg);
}
.photo_front .photo-wrap{
transform:translate(0px,0px) rotateY(0deg);
}
.photo_back .photo-wrap{
transform:translate(260px,0px) rotateY(180deg);
}
/*翻转控制按钮样式*/
.nav{
width: 80%;
height: 30px;
line-height: 30px;
position: absolute;
left: 10%;
bottom: 20px;
z-index: 999;
text-align: center;
}
.nav .i{
width: 30px;
height: 30px;
border-radius: 50%;
display: inline-block;
cursor: pointer;
transform: scale(.5);
background-color: #aaa;
transition: all .5s;
}
/*当前按钮样式*/
.nav .i_current{
transform: scale(.7);
}
/*翻转后按钮样式*/
.nav .i_back{
background-color: #555;
transform: ratateY(-180deg);
}
</style>
</head>
<body>
<div class="wrap" id="wrap">
<!--div.photo负责平移和旋转-->
<div class="photo photo_front" onclick="turn(this)" id="photo_{{index}}">
<!--div.photo-wrap负责翻转-->
<div class="photo-wrap">
<div class="side side-front">
<!--将具体内容用模拟字符串{{}}表示-->
<p class="image"><img src="img/{{img}}"></p>
<p class="caption">{{caption}}</p>
</div>
<div class="side side-back">
<p class="desc">{{desc}}</p>
</div>
</div>
</div>
</div>
<script type="text/javascript" src="js/data.js"></script>
<script type="text/javascript">
//2.内容输出
function g(selector){
//通用函数
var method = selector.substr(0,1)=='.' ? 'getElementsByClassName' : 'getElementById'
return document[method](selector.substr(1))
}
//生成随机数random(min,max)
function random(range){
var max = Math.max(range[0],range[1])
var min = Math.min(range[0],range[1])
var diff = max-min
var number = Math.ceil(Math.random()*diff+min)
return number
}
//3.输出所有海报
var data = data
function addPhotos(){
var template = g("#wrap").innerHTML
var html = []
var nav = []
for(s in data){
var _html = template
.replace('{{index}}',s)
.replace('{{img}}',data[s].img)
.replace('{{caption}}',data[s].caption)
.replace('{{desc}}',data[s].desc)
html.push(_html)
nav.push('<span id="nav_'+s+'" class="i" onclick="turn(g(\'#photo_'+s+'\'))"> </span>')
}
html.push('<div class="nav">'+nav.join('')+'</div')
g("#wrap").innerHTML = html.join('')
rsort(random([0,data.length-1]))
}
addPhotos()
//4.排序海报
function rsort(n){
//先选中所有图片清除样式
var _photo = g(".photo")
var photos = []
for(var i=0,len=_photo.length; i<len; i++){
_photo[i].className = _photo[i].className.replace(/\s*photo-center\s*/,' ')
_photo[i].className = _photo[i].className.replace(/\s*photo_back\s*/,' ')
_photo[i].style.left = ""
_photo[i].style.top = ""
_photo[i].style['transform'] = "rotate(0deg) scale(1.3)"
photos.push(_photo[i])
}
//为选中的photo_n添加居中样式
var photo_center = g("#photo_"+n)
photo_center.className += " photo-center "
//为居中海报对应的按钮添加i_current样式
var navs = g('.i')
for(var i=0,len=navs.length;i<len;i++){
navs[i].className = navs[i].className.replace(/\s*i_current\s*/,' ')
navs[i].className = navs[i].className.replace(/\s*i_back\s*/,' ')
}
g("#nav_"+n).className += " i_current "
//为除居中图片外的图片分区
photos_center = photos.splice(n,1)[0]
var photo_left = photos.splice(0,Math.ceil(photos.length/2))
var photo_right = photos
var ranges = range()
//为左右分区图片添加随机位置、旋转样式
for(i in photo_left){
photo_left[i].style.left = random(ranges.left.x)+"px"
photo_left[i].style.top = random(ranges.left.y)+"px"
photo_left[i].style['transform'] = 'rotate('+random([-150,150])+'deg) scale(1)'
}
for(i in photo_right){
photo_right[i].style.left = random(ranges.right.x)+"px"
photo_right[i].style.top = random(ranges.right.y)+"px"
photo_right[i].style['transform'] = 'rotate('+random([-150,150])+'deg) scale(1)'
}
}
//5.计算左右分区范围
function range(){
var range = {
left:{
x:[],
y:[]
},
right:{
x:[],
y:[]
}
}
var wrapW = g("#wrap").clientWidth,
wrapH = g("#wrap").clientHeight,
photoW = g(".photo")[0].clientWidth,
photoH = g(".photo")[0].clientHeight
range.left.x = [0-photoW,wrapW/2-photoW/2]
range.left.y = [0-photoH,wrapH]
range.right.x = [wrapW/2+photoW/2,wrapW+photoW]
range.right.y = range.left.y
return range
}
//1.翻面控制
function turn(ele){
var cls = ele.className
var n = ele.id.split('_')[1]
//判断翻面海报是否已经是居中海报，如果不是，重新排序
if(!/photo-center/.test(cls)){
return rsort(n)
}
if(/photo_front/.test(cls)){
//利用正则判断className中是否包括photo_front，若有则替换成photo_back
cls = cls.replace(/photo_front/,'photo_back')
g('#nav_'+n).className += ' i_back '
}else{
//若包括的是photo_back，则替换成photo_front
cls = cls.replace(/photo_back/,'photo_front')
g('#nav_'+n).className = g('#nav_'+n).className.replace(/\s*i_back\s*/,' ')
}
return ele.className = cls
}
</script>
</body>
</html>