JS实现图片翻书效果

2022-07-27 14:42:26

picture.html

<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>JS实现图片翻书效果</title>
<META http-equiv=imagetoolbar content=no>
<link rel="stylesheet" type="text/css" href="picture.css"/>
<script type="text/javascript" src="picture.js"></script>
<BODY>

<DIV id=center>

<DIV id=DHTMLBOOK>
   <SPAN class=page onMouseDown="return false;" ondblclick=TPL(); onclick=TPL();><IMG class=img></SPAN>
   <SPAN class="page right" onmousedown="return false;" ondblclick=TPR(); onclick=TPR();><IMG class=img style="LEFT: -100%"></SPAN>
   <SPAN class="page turn" onMouseDown="return false;" ondblclick=TPL(); onclick=TPL();><IMG class=img style="FILTER: alpha(); opacity: 1"></SPAN>
   <SPAN class="page turn right" onmousedown="return false;" ondblclick=TPR(); onclick=TPR();><IMG class=img style="FILTER: alpha(); LEFT: -100%; opacity: 1"></SPAN>

<DIV id=TXTBOX></DIV>
</DIV>
</DIV>

<DIV id=imgsrc style="VISIBILITY: hidden">
<IMG alt="In the early morning he departed." src="babi/86d6277f9e2f0708ce332da4e924b899a901f264.jpg">
<IMG alt="Believing she had dreamed of the roar of his bike," src="babi/c4aaee1ejw1e3jb8r868vj.jpg">
<IMG alt="she woke up to the sunshine in her eyelids." src="babi/7-121205155537-52.jpg">
<IMG alt="she woke up to the sunshine in her eyelids." src="babi/c4aaee1ejw1e3jb91py0fj.jpg">
<IMG alt="she woke up to the sunshine in her eyelids." src="babi/c4aaee1ejw1e3jb94nx7bj.jpg">
</DIV>
</BODY></HTML>

picture.css

#center {
LEFT: 50%; POSITION: absolute; TOP: 50%
}
#DHTMLBOOK {
BACKGROUND: #000; LEFT: -210px; VISIBILITY: hidden; WIDTH: 210px; POSITION: relative; TOP: -160px; HEIGHT: 160px
}
#TXTBOX {
FONT-SIZE: 0.8em; WIDTH: 210px; COLOR: #aba193; FONT-FAMILY: verdana; POSITION: absolute; TOP: 160px; TEXT-ALIGN: center
}
.page {
OVERFLOW: hidden; BORDER-LEFT: #000000 1px solid; WIDTH: 50%; CURSOR: pointer; POSITION: absolute; HEIGHT: 100%
}
.right {
BORDER-RIGHT: #000000 1px solid; LEFT: 50%
}
.turn {
BACKGROUND: #000000
}
.img {
WIDTH: 200%; POSITION: absolute; HEIGHT: 100%
}

picture.js

document.onselectstart = function () { return false; }

var nI = 0;
var kI = 0;
var run = false;

function setOpacity(obj,o) {
if (o<0) o=0; else if (o>100) o = 100;
if (obj.filters)obj.filters.alpha.opacity=o; else obj.style.opacity = o/100;
}
function TPR__(p) {
P1.style.left = 50-(2.5*p)+"%";
P1.style.width = (2.5*p)+"%";
setOpacity(P1i, .5*p*p);
if (p == 20) run = false;
}
function TPR_(p) {
P2.style.width = 50-(2.5*p)+"%";
setOpacity(P2i, 100-.5*(p*p));
if (p == 20) {
  P2i.src = IMGSRC[kI].src;
  setOpacity(P2i, 100);
  P2.style.width = "50%";
  for(var i=1; i<=20; i++) setTimeout("TPR__("+i+")", i*32);
}
}
function TPR() {
if (!run) {
  run = true;
  P01i.src = IMGSRC[kI].src;
  P1.style.width = 0;
  kI++;
  if (kI>=nI) kI = 0;
  titLe(kI);
  P02i.src = IMGSRC[kI].src;
  P1i.src = IMGSRC[kI].src;
  for (var i=1; i<=20; i++) setTimeout("TPR_("+i+")", i*32);
} else setTimeout("TPR()", 100);
}

function TPL__(p) {
P2.style.width = (2.5*p)+"%";
setOpacity(P2i, .5*p*p);
if (p == 20) run = false;
}
function TPL_(p) {
P1.style.left = (2.5*p)+"%";
P1.style.width = 40+(10-2.5*p)+"%";
setOpacity(P1i, 100-.5*(p*p));
if (p == 20) {
  P1i.src = IMGSRC[kI].src;
  setOpacity(P1i, 100);
  P1.style.left = 0;
  P1.style.width = "50%";
  for(var i=1; i<=20; i++) setTimeout("TPL__("+i+")", i*32);
}
}
function TPL() {
if (!run) {
  run = true;
  P02i.src = IMGSRC[kI].src;
  P2.style.width = 0;
  kI--;
  if (kI < 0) kI = nI-1;
  titLe(kI);
  P01i.src = IMGSRC[kI].src;
  P2i.src = IMGSRC[kI].src;
  for(var i=1; i<=20; i++) setTimeout("TPL_("+i+")", i*32);
} else setTimeout("TPL()", 100);
}
function titLe(p) {
document.getElementById("TXTBOX").innerHTML = IMGSRC[p].alt;
}
onload = function() {
IMGSRC = document.getElementById("imgsrc").getElementsByTagName("img");
DB      = document.getElementById("DHTMLBOOK");
P01     = DB.getElementsByTagName("span")[0];
P01i    = P01.getElementsByTagName("img")[0];
P02     = DB.getElementsByTagName("span")[1];
P02i    = P02.getElementsByTagName("img")[0];
P1      = DB.getElementsByTagName("span")[2];
P1i     = P1.getElementsByTagName("img")[0];
P2      = DB.getElementsByTagName("span")[3];
P2i     = P2.getElementsByTagName("img")[0];
nI      = IMGSRC.length;
P1i.src = IMGSRC[kI].src;
P2i.src = IMGSRC[kI].src;
titLe(kI);
DB.style.visibility = "visible";
}