JS实现可缩放、拖动、关闭和最小化的浮动窗口完整实例

  本文实例讲述了JS实现可缩放、拖动、关闭和最小化的浮动窗口方法。分享给大家供大家参考。具体实现方法如下:

  

复制代码 代码如下:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

  <html xmlns="http://www.w3.org/1999/xhtml">

  <head>

  <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />

  <title>JS实现可缩放、拖动、关闭和最小化的浮动窗口</title>

  </head>

  <style type="text/css">

  .divWindow{word-wrap:break-word;position:absolute; overflow:hidden;}

  .divBar{border:#000000 1px solid;position:absolute;border-bottom:#000000 1px solid;width:100%;height:20px;background-color:#0099FF;cursor:hand;line-height:20px;}

  .divChange{position:absolute;right:25px;font-size:10pt;}

  .divClose{position:absolute;right:5px;font-size:11pt;}

  .divTitle{position:absolute;left:5px;font-size:10pt;white-space:nowrap;text-overflow:ellipsis;-o-text-overflow:ellipsis;overflow: hidden;}

  .divContent{border:#000000 1px solid;border-top:#000000 0px solid;position:absolute; top:20px;width:100%; background-color:#FFFFFF; overflow-y:auto;

  SCROLLBAR-BASE-COLOR: #FFFFFF;SCROLLBAR-ARROW-COLOR: #999999;SCROLLBAR-FACE-COLOR: #EEEEEE;SCROLLBAR-HIGHLIGHT-COLOR: #EEEEEE;

  SCROLLBAR-SHADOW-COLOR: #EEEEEE;SCROLLBAR-3DLIGHT-COLOR: #FFFFFF;SCROLLBAR-TRACK-COLOR: #FFFFFF;SCROLLBAR-DARKSHADOW-COLOR: #CCCCCC;}

  .divReSize{height:7px; width:7px; overflow:hidden; background-color:#0000FF; position:absolute; bottom:6px; right:6px; cursor:nw-resize}

  .divIframe{height:100%;width:100%;}

  </style>

  <script language="javascript">

  var zindex=0  //全局变量

  function dragClass(name,title,content,left,top,width,height){

  var isMouseDown=false;

  var maximum=false;

  var offX=0;   //设置抓取点X坐标

  var offY=0;   //设置抓取点Y坐标

  var oldLeft;  //保存正常状态的X坐标

  var oldTop;   //保存正常状态的Y坐标

  this.mousedown= function (){    //按下拖动点

  Bar.setCapture(); //设置抓取

  offX=parseInt(event.clientX)-parseInt(Window.style.left);

  offY=parseInt(event.clientY)-parseInt(Window.style.top);

  isMouseDown=true;

  if(Window.style.zIndex<=zindex){

  zindex++;

  Window.style.zIndex=zindex;

  }

  }

  this.mousemove= function (){    //拖动窗口

  if (isMouseDown && !maximum){

  Bar.style.cursor='move'

  Window.style.left=event.clientX-offX;

  Window.style.top=event.clientY-offY;

  if(Window.style.zIndex<=zindex){

  zindex++;

  Window.style.zIndex=zindex;

  }

  }

  }

  this.mouseup=function (){     //松开按钮

  Bar.releaseCapture();     //取消抓取

  Bar.style.cursor='hand';

  if (parseInt(Window.style.top)<0){

  Window.style.top='0px';

  }

  if (parseInt(Window.style.left)<0){

  Window.style.left='0px';

  }

  isMouseDown=false;

  }

  this.dblclick=function (){    //双击最大最小化

  if (!maximum){

  oldLeft=Window.style.left;   //保存正常状态的X坐标

  oldTop=Window.style.top;    //保存正常状态的Y坐标

  Window.style.left='0px';

  Window.style.top='0px';

  Window.style.width= document.body.clientWidth;    //网页可见区域宽

  Title.style.width=(document.body.clientWidth-40)+'px';  //设置标题长度

  ReSize.style.display='none';

  if(Change.innerText=='-'){

  Window.style.height='100%';

  Content.style.height=document.body.clientHeight-20; //网页可见区域宽-标题高度

  }else{

  Window.style.height='20px';

  }

  maximum=true;

  }else{

  Window.style.left=oldLeft;

  Window.style.top=oldTop;

  Window.style.width=width+'px';

  Title.style.width=(width-40)+'px';

  ReSize.style.display='';

  if(Change.innerText=='-'){

  Window.style.height=height+'px';

  Content.style.height=parseInt(height-20)+'px';

  }else{

  Window.style.height='20px';

  }

  maximum=false;

  }

  if(Window.style.zIndex<=zindex){

  zindex++;

  Window.style.zIndex=zindex;

  }

  }

  this.changeWindow=function (){   //收缩窗口

  event.cancelBubble=true;

  if(Change.innerText=='-'){

  Window.style.height='20px';

  Change.innerText='□';

  Content.style.display='none';

  ReSize.style.display='none';

  }else{

  if (maximum){

  Window.style.height='100%';

  Content.style.display='';

  ReSize.style.display='';

  Content.style.height=document.body.clientHeight-20; //网页可见区域宽-标题高度

  }else{

  Window.style.height=height+'px';

  Content.style.display='';

  ReSize.style.display='';

  Content.style.height=parseInt(height-20)+'px';

  }

  Change.innerText='-';

  }

  }

  var Window=document.createElement("div");

  Window.id="divWindow"+ name;

  Window.className="divWindow";

  Window.style.left=left+'px';

  Window.style.top=top+'px';

  Window.style.width=width+'px';

  Window.style.height=height+'px';

  Window.onclick=function(){

  if(parseInt(Window.style.zIndex)<=zindex){

  zindex++;

  Window.style.zIndex=zindex;

  }

  }

  this.Window=Window;

  //公有属性,类外可操作;若要在类外操作,可将元素改为公有属性

  var Bar=document.createElement("div");

  Bar.id="divBar"+name;

  Bar.onselectstart="return false";

  Bar.className="divBar";

  Bar.onmousedown=this.mousedown;

  Bar.ondblclick=this.dblclick;

  Bar.onmousemove=this.mousemove;

  Bar.onmouseup=this.mouseup;

  Window.appendChild(Bar);

  var Title=document.createElement("span");

  Title.id="divTitle"+ name;

  Title.className="divTitle";

  Title.style.width=(width-40)+'px';    //自适应标题长度

  Title.innerText=title;

  Bar.appendChild(Title);

  var Change=document.createElement("span");

  Change.id="divChange"+ name;

  Change.className="divChange";

  Change.innerText="-";

  Change.ondblclick=this.changeWindow;

  Change.onclick=this.changeWindow;

  Bar.appendChild(Change);

  var Close=document.createElement("span");

  Close.id="divClose"+ name;

  Close.onclick=function(){

  Window.style.display='none';

  }

  Close.className="divClose";

  Close.innerText="×";

  Bar.appendChild(Close);

  var Content=document.createElement("div");

  Content.id="divContent"+ name;

  Content.className="divContent"

  Content.innerHTML=content;

  Content.style.height=parseInt(height-20)+'px';

  Window.appendChild(Content);

  var ReSize=document.createElement("div");

  ReSize.className="divReSize";

  ReSize.onmousedown=function(){

  if(Window.style.zIndex<=zindex){

  zindex++;

  Window.style.zIndex=zindex;

  }

  ReSize.setCapture();

  isMouseDown=true;

  }

  ReSize.onmousemove=function(){

  if (isMouseDown && !maximum)

  {

  width=parseInt(event.clientX)-parseInt(Window.style.left)+5;

  height=parseInt(event.clientY)-parseInt(Window.style.top)+5;

  if(width>100){       //设置最小宽度

  Window.style.width=width+'px';

  Title.style.width=(width-40)+'px';

  }

  if(height>100){       //设置最小高度

  Window.style.height=height+'px';

  Content.style.height=parseInt(height-20)+'px';

  }

  }

  }

  ReSize.onmouseup=function(){

  ReSize.releaseCapture();

  isMouseDown=false;

  }

  Window.appendChild(ReSize);

  var Iframe=document.createElement("iframe"); //添加iframe,IE6.0下遮挡<select>控件

  Iframe.className="divIframe";

  Window.appendChild(Iframe);

  document.body.appendChild(Window);

  }

  </script>

  <body>

  <script>

  //dragClass(ID,窗口标题,内容,X坐标,Y坐标,宽,长)

  var c1="窗口1窗口1窗口1窗口1窗口1窗口1窗口1窗口1窗口1窗口1窗口1窗口1窗口1窗口1窗口1窗口1窗口1窗口1窗口1窗口1窗口1窗口1窗口1窗口1窗口1窗口1";

  objWin1=new dragClass('win1','拖动窗口1',c1,0,150,300,300);

  var c2="窗口2窗口2窗口2窗口2窗口2窗口2窗口2窗口2窗口2窗口2窗口2窗口2窗口2窗口2窗口2窗口2窗口2窗口2窗口2窗口2窗口2窗口2窗口2窗口2窗口2窗口2";

  objWin2=new dragClass('win2','拖动窗口2',c2,350,150,300,300);

  var objWin3;

  function openWin(){

  if(objWin3==null){

  var c3="123窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3窗口3";

  objWin3=new dragClass('win3',c3,c3,700,150,300,300);

  }else{

  if(objWin3.Window.style.display=='none'){

  objWin3.Window.style.display='';

  }

  }

  }

  </script>

  <input type="button" value="弹出【窗口3】" onClick="openWin()" />

  </body>

  </html>

  希望本文所述对大家的javascript程序设计有所帮助。