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
jQuery代码:jQuery控制表单里的回车键
用DIV完美模拟createPopup 弹出窗口(脚本之家修正版),支持Firefox,ie,chrome
jQuery Flash/MP3/Video多媒体插件
9个JavaScript评级/投票插件
JS实现的radio图片选择按钮效果
IE中checkbox在刷新后初始化的问题
JavaScript 学习笔记(十一)
JS 对象介绍
javascript 哈希表(hashtable)的简单实现
jquery 防止表单重复提交代码
js parsefloat parseint 转换函数
javascript parseInt与Number函数的区别
JavaScript 学习笔记(十二) dom
JavaScript 学习笔记(十三)Dom创建表格
javascript 实现自由落体的方块效果
javascript 获取url参数和script标签中获取url参数函数代码
JAVASCRIPT style 中visibility和display之间的区别
javascript 拖放效果实现代码
jquery last-child 列表最后一项的样式
Jquery实战_读书笔记1—选择jQuery

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: 88 ::
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]