当前位置: 首页 > 图文教程 > 网络编程 > Javascript > 图片自动播放也可通过按钮控制显示

Javascript
javascript 动态数据下的锚点错位问题解决方法
jQuery 动画基础教程
jQuery 操作XML入门
ASP SQL防注入的方法
jquery 插件 web2.0分格的分页脚本,可用于ajax无刷新分页
jquery 插件 任意位置浮动固定层
JavaScript 检测浏览器和操作系统的脚本
不要小看注释掉的JS 引起的安全问题
js实现的验证,学习用js控制td
javascript iframe中打开文件,并检测iframe存在否
Javascript typeof 用法
Javascript valueOf 使用方法
extjs form textfield的隐藏方法
extjs grid取到数据而不显示的解决
Ext第一周 史上最强学习笔记---GridPanel(基础篇)
My Desktop :) 桌面式代码
javascript 双击文本框编辑功能代码
不用写JS也能使用EXTJS视频演示
js 提取class相同的节点集合
js Li来实现的效果

Javascript 中的 图片自动播放也可通过按钮控制显示


出处:互联网   整理: 软晨网(RuanChen.com)   发布: 2009-10-12   浏览: 413 ::
收藏到网摘: n/a

swissarmy.js
复制代码 代码如下:

////NO need to edit /////////////
//more javascript from http://www.smallrain.net
function preloadctrl(im){
if (typeof im=='string'){
var imo=new Image();
imo.src=im;
}
}
if(document.images&&typeof preload_ctrl_images!='undefined'&&preload_ctrl_images){
var ctrlimgs=[previmg, stopimg, playimg, nextimg]
for (var i_tem = 0; i_tem < ctrlimgs.length; i_tem++)
if (ctrlimgs[i_tem])
preloadctrl(ctrlimgs[i_tem])
}
var iss=[]; //array to cache inter_slide instances
function inter_slide(){
if(!document.images||arguments.length==0)
return;
var imgs=arguments[0];
var width=null, height=null, delay=null;
if(arguments.length==2)
delay=arguments[1];
else if(arguments.length==3||arguments.length==4)
width=arguments[1], height=arguments[2], delay=arguments[3]? arguments[3] : null;
this.dom=(document.getElementById) //modern dom browsers
this.da=document.all
this.delay=imgs.delay? imgs.delay : delay? delay : 3000+iss.length*750;
this.nextimgidx=0;
iss[this.issid=iss.length]=this;
this.imgs=imgs;
if (imgs.random)
this.imgs.sort(function() {return 0.5 - Math.random();}) //thanks to Mike (aka Mwinter) :)
this.imgborder=imgs.border? parseInt(imgs.border) : 0;
if (!this.dom){
this.postimgs=new Array() //preload imgs
for (p=0;p<imgs.length;p++){
this.postimgs[p]=new Image()
this.postimgs[p].src=this.imgs[p][0]
}
}
if (this.dom){ //if modern browsers (ie: Firefox, IE5+)
this.faded=0;
this.loadimgidx=[];
this.fade=!imgs.nofade;
if(this.fade)
this.degree=10 //initial opacity degree (10%)
this.pausecheck=imgs.pause;
this.mouseovercheck=0
this.canvasbase="canvas"+this.issid
this.curcanvas=this.canvasbase+"_0"
this.descriptions=!imgs.no_descriptions;
this.man_start=imgs.manual_start;
this.addbr=!imgs.no_added_linebreaks;
this.no_auto=imgs.no_auto;
this.onclick=imgs.onclick;
this.specs=imgs.specs;
this.counter=imgs.counter;
this.ics=imgs.image_controls;
this.jumpto=imgs.jumpto;
this.no_c=imgs.no_controls;
this.target=imgs.target;
this.ualt=imgs.use_alt;
this.utit=imgs.use_title;
this.fadecolor=imgs.fadecolor;
this.ibut_hc=imgs.button_highlight;
this.dp=imgs.desc_prefix? imgs.desc_prefix : ' ';
this.imbcolor=imgs.border_color;
this.imbstyle=imgs.border_style;
this.width=imgs.width? imgs.width : width? width : null
this.width=this.width? this.width+this.imgborder*2 : null;
this.height=imgs.height? imgs.height : height? height : null
this.height=this.height? this.height+this.imgborder*2 : null;
var ief='', dims='';
if(this.width||this.height)
dims=this.width&&this.height? 'width:'+this.width+'px;height:'+this.height+'px;' : this.width? 'width:'+this.width+'px;' : 'height:'+this.height+'px;';
if(this.fade&&document.body&&document.body.style)
ief=document.body.filters? 'filter:progid:DXImageTransform.Microsoft.alpha(opacity=0);' : typeof document.body.style.opacity=='string'? 'opacity:0;' : 'opacity:0.10;-moz-opacity:0.10;-khtml-opacity:0.10;';
var brs=this.addbr? '<br>' : '';
if (imgs.controls_top){
this.controls();
document.write(brs)
}
document.write('<div align="center"><div id="master'+this.issid+'" style="position:relative;'+dims+'overflow:hidden;margin:0 auto;"><div id="'+this.canvasbase+'_0" style="position:absolute;'+dims+'top:0;left:0;'+ief+'background-color:'+(imgs.fadecolor? imgs.fadecolor : 'white')+'"><\/div><div id="'+this.canvasbase+'_1" style="position:absolute;'+dims+'top:0;left:0;'+ief+'background-color:'+(imgs.fadecolor? imgs.fadecolor : 'white')+'"><\/div><\/div><\/div>')
if(this.descriptions)
document.write(brs+'<div align="center">'+this.dp+'<span id="imgdsc'+this.issid+'"> <\/span></div>\n');
if(this.counter&&!this.descriptions)
document.write(brs);
if(this.counter)
this.cntrl()
if (!imgs.controls_top){
document.write(this.ics? '' : brs);
this.controls();
}
}
else
document.write('<div align="center"><img name="defaultslide'+this.issid+'" src="'+this.postimgs[0].src+'"><\/div>')

if (this.dom) //if modern browsers such as Firefox, IE5+
this.startit()
else{
this.nextimgidx++
setInterval("iss["+this.issid+"].rotateimg()", this.delay)
}
}
inter_slide.prototype.cntrl=function(){
this.cpad=this.imgs.length.toString().length;
document.write('<div align="center">Viewing Image: <b><span id="thecnt'+this.issid+'"><\/span><\/b>of<span style="font-size:1ex;"> </span> <b>'+this.imgs.length+'<\/b><\/div>');
}
inter_slide.prototype.controls=function(){
var brs=this.addbr? '<br>' : ' ';
if(!this.ics&&!this.no_c)
document.write('<div align="center"><input id="prev'+this.issid+'" disabled type="button" value=" << " onclick="iss['+this.issid+'].changeimg(false, \'nav\');">\n'+
(this.no_auto? ' ' : ' <input id="gostp'+this.issid+'" type="button" value=" Stop " onclick="iss['+this.issid+'].gostop(this);">\n')+
' <input id="next'+this.issid+'" disabled type="button" value=" >> " onclick="iss['+this.issid+'].changeimg(true, \'nav\');">'+(this.jumpto? brs+'Jump to: <input disabled type="text" size="'+this.imgs.length.toString().length+'" id="goto'+this.issid+'" onkeydown="iss['+this.issid+'].jumper(event);"><input id="go'+this.issid+'" disabled type="button" onclick="iss['+this.issid+'].jumper();" value="GO">' : '')+'<\/div>')
else if(this.ics&&!this.no_c){
var op=document.body.filters? ' style="filter:alpha(opacity=100);"' : ' style="opacity:'+(this.man_start? 0.99 : 0.45)+';"';
document.write('<table align="center" cellpadding="0" cellspacing="10"><tr><td valign="middle" align="center" style="padding:2px 2px 1px 2px;"><input'+op+' onmouseover="iss['+this.issid+'].ibute(this,1);" onmouseout="iss['+this.issid+'].ibute(this,2);" onmousedown="iss['+this.issid+'].ibute(this,3);" onmouseup="iss['+this.issid+'].ibute(this,4);" type="image" title="Previous" id="prev'+this.issid+'" src="'+previmg+'" onclick="iss['+this.issid+'].changeimg(false, \'nav\');"><\/td>'+(this.no_auto? '<td> <\/td>' : '<td valign="middle" align="center" style="padding:2px 2px 1px 2px;"><input onmouseover="iss['+this.issid+'].ibute(this,1);" onmouseout="iss['+this.issid+'].ibute(this,2);" onmousedown="iss['+this.issid+'].ibute(this,3);" onmouseup="iss['+this.issid+'].ibute(this,4);" title="Stop" type="image" id="gostp'+this.issid+'" src="'+(this.g_fPlayMode? playimg : stopimg)+'" onclick="iss['+this.issid+'].gostop(this);"><\/td>')+'<td valign="middle" align="center" style="padding:2px 2px 1px 2px;"><input'+op+' onmouseover="iss['+this.issid+'].ibute(this,1);" onmouseout="iss['+this.issid+'].ibute(this,2);" onmousedown="iss['+this.issid+'].ibute(this,3);" onmouseup="iss['+this.issid+'].ibute(this,4);" type="image" title="Next" id="next'+this.issid+'" src="'+nextimg+'" onclick="iss['+this.issid+'].changeimg(true, \'nav\');"><\/td><\/tr><\/table>\n');
}
else
this.no_c=1;
}
inter_slide.prototype.jumper=function(e){
var key;
if(typeof e=='object')
key=e.keyCode? e.keyCode : e.which? e.which : 1;
if(key&&key!==13)
return;
var num=typeof e=='number'? e : parseInt(this.go('goto'+this.issid).value);
if(num<=this.imgs.length&&num>0){
this.nextimgidx=num-2;
this.changeimg(true, 'jump');
}
}
inter_slide.prototype.ibute=function(obj, i){
if(!obj.parentNode)
return;
if(i==1)
obj.parentNode.style.backgroundColor=this.ibut_hc? this.ibut_hc : 'yellow';
else if(i==2)
obj.parentNode.style.backgroundColor='transparent';
else if(i==3){
obj.parentNode.style.borderTop=obj.parentNode.style.borderLeft='1px solid gray';
obj.parentNode.style.paddingRight='1px';obj.parentNode.style.paddingBottom=0;
}
if (i==2||i==4){
obj.parentNode.style.borderTop=obj.parentNode.style.borderLeft='none';
obj.parentNode.style.paddingRight='2px';obj.parentNode.style.paddingBottom='1px';
}
}
inter_slide.prototype.fadepic=function(){
if (this.fade&&this.degree<100){
this.faded=0
this.degree+=10
if (this.tempobj.filters&&this.tempobj.filters[0]){
if (typeof this.tempobj.filters[0].opacity=="number") //if IE6+
this.tempobj.filters[0].opacity=this.degree
else //else if IE5.5-
this.tempobj.style.filter="alpha(opacity="+this.degree+")"
}
else if (this.tempobj.style.MozOpacity)
this.tempobj.style.MozOpacity=this.degree/101
else if (this.tempobj.style.KhtmlOpacity)
this.tempobj.style.KhtmlOpacity=this.degree/100
else if (this.tempobj.style.opacity&&!this.tempobj.filters)
this.tempobj.style.opacity=this.degree/101
}
else{
this.faded=1
clearInterval(this.fadeclear)
this.nextcanvas=(this.curcanvas==this.canvasbase+"_0")? this.canvasbase+"_0" : this.canvasbase+"_1"
this.tempobj=this.go(this.nextcanvas)
if(this.playing)
this.changeimg()
}
}
inter_slide.prototype.populateslide=function(picobj, picidx){
if(document.getElementsByTagName){
if(picobj.getElementsByTagName('a')[0]&&picobj.getElementsByTagName('a')[0].onclick)
picobj.getElementsByTagName('a')[0].onclick=null;
if(picobj.getElementsByTagName('img')[0]&&picobj.getElementsByTagName('img')[0].onload)
picobj.getElementsByTagName('img')[0].onload=null;
}
picobj.style.backgroundColor=this.imgs[picidx].fadecolor? this.imgs[picidx].fadecolor : this.fadecolor? this.fadecolor : 'white';
var slideHTML='<table border="0" cellpadding="0" cellspacing="0" width="100%" height="100%"><tr><td width="100%" height="100%" align="center" valign="middle" style="background:transparent none;">'
if (this.imgs[picidx][2]){ //if associated link exists for img
var specs=this.imgs[picidx][4]? ", '"+this.imgs[picidx][4]+"'" : this.specs? ", '"+this.specs+"'" : '';
slideHTML+='<a href="'+this.imgs[picidx][2]+'"'+(this.imgs[picidx][3]? ' target="'+this.imgs[picidx][3]+'"' : this.target? ' target="'+this.target+'"' : '')+' onclick="'+(this.onclick? this.onclick : 'window.open(this.href, (this.target? this.target : \'_self\')'+specs+');return false;')+'">'
}
slideHTML+='<img id="theimg'+picidx+'_'+this.issid+'" src="'+(this.loadimgidx[picidx]&&typeof this.loadimgidx[picidx].complete=='boolean'&&this.loadimgidx[picidx].complete? this.loadimgidx[picidx].src : this.imgs[picidx][0])+'" alt="'+(this.ualt? this.imgs[picidx][1] : 'Slide Show Image')+'" title="'+(this.utit? this.imgs[picidx][1] : '')+'" '+(this.imbcolor&&!this.imgs[picidx].noborder? 'style="border:'+this.imgborder+'px '+(this.imbstyle? this.imbstyle : 'solid')+' '+this.imbcolor+';"' : 'border="'+(this.imgs[picidx].noborder? '0' : this.imgborder)+'"')+(!this.width||!this.height? ' onload="iss['+this.issid+'].imgload(this);"' : '')+'>'
if (this.imgs[picidx][2]) //if associated link exists for img
slideHTML+='<\/a>'
slideHTML+='<\/td><\/tr><\/table>'
picobj.innerHTML=slideHTML
}
inter_slide.prototype.buttons=function(bool){
if(this.no_c)
return;
var next=this.go('next'+this.issid), prev=this.go('prev'+this.issid);
next.disabled=prev.disabled=!bool;
next.title=bool? 'next' : '';
prev.title=bool? 'previous' : '';
if(this.jumpto&&!this.ics)
this.go('go'+this.issid).disabled=this.go('goto'+this.issid).disabled=!bool;
if(this.ics){
if(!this.no_auto){
var go=this.go('gostp'+this.issid)
go.title=bool? 'Play' : 'Stop';
go.src=bool? playimg : stopimg;
}
if(prev.filters&&prev.parentNode)
prev.parentNode.style.filter=next.parentNode.style.filter='alpha(opacity='+(bool? 100 : 45)+')';
else if(prev.style.opacity&&!prev.filters)
prev.style.opacity=next.style.opacity=bool? 0.99 : 0.45;
}
}
inter_slide.prototype.imgload=function(el){
if(!el&&!this.imgel)
return;
var el=el? el : this.imgel;
if(el.width==0||el.height==0){
this.imgel=el;
var cacheobj=this;
clearTimeout(this.getdim)
this.getdim=setTimeout(function(){cacheobj.imgload()}, 300)
return;
}
var m=this.go('master'+this.issid).style, c0=this.go(this.canvasbase+'_0').style, c1=this.go(this.canvasbase+'_1').style;
if(!this.width){
this.width=el.width+this.imgborder*2;
m.width = c0.width = c1.width = this.width+'px';
}
if(!this.height){
this.height=el.height+this.imgborder*2;
m.height = c0.height = c1.height = this.height+'px';
}
}
inter_slide.prototype.changeimg=function(bool,nav){
if(this.playing){
this.buttons(false)
this.nextimgidx=(this.keeptrack()<this.imgs.length-1)? this.keeptrack()+1 : 0
this.populateslide(this.tempobj, this.nextimgidx)
if(bool)
this.rotateimg()
else{
clearTimeout(this.inprocess)
this.inprocess=setTimeout("iss["+this.issid+"].rotateimg()", this.delay)
}
}
else {
if(!this.faded){
if(nav&&nav=='nav')
return;
this.nextimgidx=this.keeptrack()+(bool? 1 : -1)
this.nextimgidx=(this.nextimgidx<this.imgs.length)? this.nextimgidx : this.nextimgidx-this.imgs.length
this.nextimgidx=(this.nextimgidx>-1)? this.nextimgidx : this.imgs.length+this.nextimgidx
return;
}
if(this.fadeclear)
clearInterval(this.fadeclear);
if(bool){
var loadidx=this.nextimgidx+2
loadidx=(loadidx<this.imgs.length)? loadidx : loadidx-this.imgs.length;
loadidx=(loadidx>-1)? loadidx : this.imgs.length+loadidx;
this.loadimgidx[loadidx]=new Image();
this.loadimgidx[loadidx].src=this.imgs[loadidx][0];
}
else{
var loadidx=this.nextimgidx-2
loadidx=(loadidx<this.imgs.length)? loadidx : loadidx-this.imgs.length
loadidx=(loadidx>-1)? loadidx : this.imgs.length+loadidx
this.loadimgidx[loadidx]=new Image();
this.loadimgidx[loadidx].src=this.imgs[loadidx][0];
}
if(nav&&nav=='jump')
this.nextimgidx++;
else
this.nextimgidx=this.keeptrack()+(bool? 1 : -1)
this.nextimgidx=(this.nextimgidx<this.imgs.length)? this.nextimgidx : this.nextimgidx-this.imgs.length
this.nextimgidx=(this.nextimgidx>-1)? this.nextimgidx : this.imgs.length+this.nextimgidx
this.populateslide(this.tempobj, this.nextimgidx)
this.rotateimg()
}
}
inter_slide.prototype.go=function(id){
return this.da? this.da[id] : document.getElementById(id);
}
inter_slide.prototype.rotateimg=function(){
if(this.dom){
var cimg=this.go('theimg'+this.nextimgidx+'_'+this.issid)? this.go('theimg'+this.nextimgidx+'_'+this.issid) : null;
if(cimg&&typeof cimg.complete=='boolean'&&!cimg.complete){
var cacheobj=this
clearTimeout(this.loading)
this.loading=setTimeout(function(){cacheobj.rotateimg()}, 300)
return;
}
if (this.mouseovercheck==1){
var cacheobj=this
clearTimeout(this.mousep)
this.mousep=setTimeout(function(){cacheobj.rotateimg()}, 100)
return;
}
if(this.fade)
this.resetit()
var crossobj=this.tempobj=this.go(this.curcanvas)
crossobj.style.zIndex++
var othercanvas=this.curcanvas==this.canvasbase+"_0"? this.go(this.canvasbase+"_1") : this.go(this.canvasbase+"_0");
othercanvas.style.zIndex=0;
if(this.descriptions)
this.go('imgdsc'+this.issid).innerHTML = this.imgs[this.keeptrack()][1];
if(this.counter){
var padit='';
for (var p=0; p<this.cpad-(this.nextimgidx+1).toString().length; p++)
padit+='<span style="visibility:hidden;">0</span>';
this.go('thecnt'+this.issid).innerHTML = padit+(this.keeptrack()<this.imgs.length? this.keeptrack()+1 : 1);
}
if (this.jumpto)
this.go('goto'+this.issid).value=this.keeptrack()<this.imgs.length? this.keeptrack()+1 : 1;
this.jumperidx=this.keeptrack()<this.imgs.length? this.keeptrack()+1 : 1;
var fadeobj=this
clearInterval(this.fadeclear)
this.fadeclear=setInterval(function(){fadeobj.fadepic()},50)
this.curcanvas=(this.curcanvas==this.canvasbase+"_0")? this.canvasbase+"_1" : this.canvasbase+"_0"
}
else{
var v4imgobj=document.images['defaultslide'+this.issid]
v4imgobj.src=this.postimgs[this.nextimgidx].src
this.nextimgidx=(this.nextimgidx<this.imgs.length-1)? this.nextimgidx+1 : 0
}
}
inter_slide.prototype.resetit=function(){
this.degree=10
var crossobj=this.go(this.curcanvas)
if (crossobj.filters&&crossobj.filters[0]){
if (typeof crossobj.filters[0].opacity=="number") //if IE6+
crossobj.filters(0).opacity=this.degree
else //else if IE5.5-
crossobj.style.filter="alpha(opacity="+this.degree+")"
}
else if (crossobj.style.MozOpacity)
crossobj.style.MozOpacity=this.degree/101
else if (crossobj.style.KhtmlOpacity)
crossobj.style.KhtmlOpacity=this.degree/100
else if (crossobj.style.opacity&&!crossobj.filters)
crossobj.style.opacity=this.degree/101
}
inter_slide.prototype.startit=function(){
this.playing=1
var crossobj=this.go(this.curcanvas)
this.populateslide(crossobj, this.nextimgidx)
if (this.pausecheck==1){ //if slideshow should pause onmouseover
var cacheobj=this
var crossobjcontainer=this.go("master"+this.issid)
crossobjcontainer.onmouseover=function(){cacheobj.mouseovercheck=1}
crossobjcontainer.onmouseout=function(){cacheobj.mouseovercheck=0}
}
this.rotateimg()
if(this.no_auto)
this.gostop();
else if(this.man_start)
this.gostop(this.go('gostp'+this.issid));
else if(this.ics&&document.body.filters){ //kludge for IE5.5 bug
this.buttons(false);
}
}
inter_slide.prototype.gostop=function(el){
if(el)
el.value=el.value==' Stop '? ' Play ' : ' Stop ';
if(this.inprocess&&this.playing){
clearTimeout(this.inprocess);
this.nextimgidx-=this.faded;
}
this.playing=!this.playing;
if(this.playing){
clearInterval(this.fadeclear)
this.faded=1
this.changeimg(true);
}
else{
var loadidx=(this.keeptrack()<this.imgs.length-1)? this.keeptrack()+1 : 0
this.loadimgidx[loadidx]=new Image();
this.loadimgidx[loadidx].src=this.imgs[loadidx][0];
this.jumper(this.jumperidx? this.jumperidx : 0)
this.buttons(true);
}
}
inter_slide.prototype.keeptrack=function(){
if(!document.getElementsByTagName)
return this.nextimgidx;
var canvases=[this.go('canvas'+this.issid+'_0'), this.go('canvas'+this.issid+'_1')]
if(canvases[0].style.zIndex>canvases[1].style.zIndex&&canvases[0].getElementsByTagName("img")[0])
return parseInt(canvases[0].getElementsByTagName('img')[0].id.replace(/theimg/, ''))
else if(canvases[1].getElementsByTagName("img")[0])
return parseInt(canvases[1].getElementsByTagName('img')[0].id.replace(/theimg/, ''))
else
return this.nextimgidx;
}

点击运行可以看到效果:
[Ctrl+A 全选 提示:你可先修改部分代码,再按运行]