首页 > 技术文章 > Javascript之响应式相册
caidupingblogs 2016-06-10 11:36 原文
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd"> <head> <meta http-equiv="Content-Type" content="text/html; charset=gb2312" /> <title>Javascript之弹性相册</title> <meta http-equiv="imagetoolbar" content="no"> <style type="text/css"> html { overflow: hidden; } body { margin: 0px; padding: 0px; background: #000; position: absolute; width: 100%; height: 100%; cursor: crosshair; } #box { position: absolute; background: #000; border: gray solid 1px; visibility: hidden; } #screen { position: absolute; left: 0px; width: 100%; top: 10%; height: 80%; background: #000; border: white solid 1px; } #box img { position: absolute; border: white solid 2px; cursor: pointer; } #box span { position: absolute; color: #ccc; font-family: verdana; font-size: 12px; width: 200px; } #box a { text-decoration: none; color:#ff8000; } #box a:hover { text-decoration: none; background:#ff8000; } #box a:visited { text-decoration: none; color:#ff8000; } #box a:visited:hover { text-decoration: none; background:#ff8000; color:#ffffff; } #lnk { visibility: hidden; } </style> <script type="text/javascript"> //禁止鼠标选中文字 document.onselectstart = new Function("return false"); //新的数组 O = new Array(); box = 0; img = 0; txt = 0; tit = 0; W = 0; H = 0; nI = 0; sel = 0; si = 0; ZOOM = 0; rImg = 0; // 动画速度 speed = .1; // 延迟时间 delay = .1; function dText(){ txt.style.textAlign = tit.style.textAlign = (sel<nI/2)?"left":"right"; txt.innerHTML = O[sel].tx; tit.innerHTML = O[sel].ti; } function CObj(n, s, x, tx, ti){ this.n = n; this.dim = s; this.tx = tx; this.ti = ti; this.is = img[n]; this.vz = 0; this.sx = 0; this.x0 = x; this.x1 = 0; this.zo = 0; this.over = function() { with(this){ if(n!=sel){ O[sel].dim = 100; O[n].dim = ZOOM * 100; sel = n; l = 0; for(k=0; k<nI; k++){ O[k].x0 = l; l += O[k].dim; } txt.innerHTML = tit.innerHTML = ""; setTimeout("dText()", 12); } } } this.anim = function () { with(this){ vz = speed*(vz+(x1-sx)*delay); x1 -= vz; sx = (n==0)?0:O[n-1].x0+O[n-1].dim; zo -= (zo-dim)*speed; l = (x1*si)+6*(n+1); w = zo*si; is.style.left = Math.round(l)+'px'; is.style.top = Math.round((H-w*rImg)*.5)+'px'; is.style.width = Math.round(w)+'px'; is.style.height = Math.round(w*rImg)+'px'; if(sel == n){ if(sel<nI*.5) { tit.style.left = txt.style.left = Math.round(l+w+6)+'px'; } else { tit.style.left = txt.style.left = Math.round(l-(nx*.25)-6)+'px'; } txt.style.top = Math.round(-(w*rImg)*.25)+'px'; tit.style.top = Math.round((w*rImg)*.33)+'px'; } } } } function run(){ for(j in O)O[j].anim(); setTimeout("run()", 16); } function doResize(){ tit.style.width = Math.round(nx*.25)+'px'; txt.style.width = Math.round(nx*.25)+'px'; tit.style.fontSize = (nx/30)+'px'; txt.style.fontSize = (nx/70)+'px'; with(box.style){ width = Math.round(W)+'px'; height = Math.round(H)+'px'; left = Math.round(nx/2-W/2)+'px'; top = Math.round(ny/2-H/2)+'px'; } } function resize(){ nx = scr.offsetWidth; ny = scr.offsetHeight; W = nx*90/100; si = (W-((nI+1)*6))/((ZOOM*100)+((nI-1)*100)); H = (100*si*rImg)+14; doResize(); } onresize = resize; onload = function(){ scr = document.getElementById("screen"); box = document.getElementById("box"); tit = document.getElementById("tit"); txt = document.getElementById("txt"); img = box.getElementsByTagName("img"); Lnk = document.getElementById("lnk").getElementsByTagName("a"); nI = img.length; ZOOM = nI; rImg = img[0].height/img[0].width; resize(); s = ZOOM * 100; x = 0; tit.innerHTML = img[0].title; txt.innerHTML = img[0].alt; for(i=0; i<nI; i++) { var t = img[i].alt; if(Lnk[i].href!="") t+='<br><a href="'+Lnk[i].href+'">'+Lnk[i].innerHTML+'</a>'; O[i] = new CObj(i, s, x, t, img[i].title); img[i].alt = ""; img[i].title = ""; img[i].onmousedown = new Function("return false;"); img[i].onmouseover = new Function('O['+i+'].over();'); if(Lnk[i].href!=""){ /* ==== hyperlink ==== */ img[i].onclick = new Function('window.open("'+Lnk[i].href+'","_blank");'); } x += s; s = 100; } box.style.visibility = "visible"; run(); } </script> </head> <body> <div id="screen"> <div id="box""> <img src="http://images.cnblogs.com/cnblogs_com/caidupingblogs/828701/o_gazebo2k3.jpg" title="explain" alt=""> <img src="http://images.cnblogs.com/cnblogs_com/caidupingblogs/828701/o_majesty.jpg" title="strain" alt=""> <img src="http://images.cnblogs.com/cnblogs_com/caidupingblogs/828701/o_newborn.jpg"title="retain" alt=""> <img src="http://images.cnblogs.com/cnblogs_com/caidupingblogs/828701/o_pyre.jpg" title="mundane" alt=""> <img src="http://images.cnblogs.com/cnblogs_com/caidupingblogs/828701/o_singularity.jpg" title="inhumane" alt=""> <img src="http://images.cnblogs.com/cnblogs_com/caidupingblogs/828701/o_spellcraft.jpg" title="disdain" alt=""> <img src="http://images.cnblogs.com/cnblogs_com/caidupingblogs/828701/o_whitemagic.jpg" title="never again" alt=""> <span id="txt"></span> <span id="tit"></span> <span id="lnk"> <a href="www.baidu.com"></a> <a></a> <a></a> <a></a> <a></a> <a></a> <a></a> </span> </div> </div> <span id="LB0" style="position:absolute;left:100%;top:100%;"> <span style="position:absolute;left:-50px;top:-5px;font-size:1px;width:100px;height:10px;background:#333"><span id="LB1" style="position:absolute;left:0px;top:0px;font-size:1px;width:0px;height:10px;background:#FFFFFF"></span></span></span> <script>m00=document.getElementById("box").getElementsByTagName("img");m01=m00.length;function images_loading_bar(){m02=0;for(i=0;i<m01;i++)m02+=(m00[i].complete)?1:0;document.getElementById("LB1").style.width=Math.round(m02/m01*100)+'px';if(m02==m01)setTimeout("document.getElementById('LB0').style.display='none'",128); else setTimeout("images_loading_bar()", 64);};images_loading_bar();</script> </body>