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 获取和设置Select选项的代码
jQuery ctrl+Enter shift+Enter实现代码
jQuery学习2 选择器的使用说明
jQuery学习3:操作元素属性和特性
jQuery学习4 浏览器的事件模型
jQuery学习5 jQuery事件模型
jQuery 学习6 操纵元素显示效果的函数
jQuery学习7 操作JavaScript对象和集合的函数
jQuery库与其他JS库冲突的解决办法
JavaScript Event事件学习第一章 Event介绍
JavaScript Event学习第二章 Event浏览器兼容性
JavaScript Event学习第三章 早期的事件处理程序
JavaScript Event学习第四章 传统的事件注册模型
JavaScript Event学习第五章 高级事件注册模型
JavaScript Event学习第六章 事件的访问
JavaScript Event学习第七章 事件属性
JavaScript Event学习第八章 事件的顺序
js png图片(有含有透明)在IE6中为什么不透明了
JavaScript 读取元素的CSS信息的代码
基于mootools的圆角边框扩展代码

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: 84 ::
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]