页面自定义拖拽布局_javascript技巧

<meta http-equiv="Content-Type" content="text/html; charset=gb2312"> <style> body {margin:0px;padding:0px;font-size:12px;text-align:center;} body > div {text-align:center; margin-right:auto; margin-left:auto;} .content{width:900px;} .content .left{ float:left; width:20%; border:1px solid #FF0000; margin:3px; } .content .center{float:left;border:1px solid #FF0000;margin:3px;width:57%} .content .right{float:right;width:20%;border:1px solid #FF0000;margin:3px} .mo{height:auto;border:1px solid #CCC;margin:3px;background:#FFF} .mo h1{background:#ECF9FF;height:18px;padding:3px;cursor:move} .mo .nr{height:80px;border:1px solid #F3F3F3;margin:2px} h1{margin:0px;padding:0px;text-align:left;font-size:12px} </style> <script> var dragobj={} window.onerror=function(){return false} function on_ini(){ String.prototype.inc=function(s){return this.indexOf(s)>-1?true:false} var agent=navigator.userAgent window.isOpr=agent.inc("Opera") window.isIE=agent.inc("IE")&&!isOpr window.isMoz=agent.inc("Mozilla")&&!isOpr&&!isIE if(isMoz){ Event.prototype.__defineGetter__("x",function(){return this.clientX+2}) Event.prototype.__defineGetter__("y",function(){return this.clientY+2}) } basic_ini() } function basic_ini(){ window.$=function(obj){return typeof(obj)=="string"?document.getElementById(obj):obj} window.oDel=function(obj){if($(obj)!=null){$(obj).parentNode.removeChild($(obj))}} } window.onload=function(){ on_ini() var o=document.getElementsByTagName("h1") for(var i=0;i<o.length;i++){ o[i].onmousedown=function(e){ if(dragobj.o!=null) return false e=e||event dragobj.o=this.parentNode dragobj.xy=getxy(dragobj.o) dragobj.xx=new Array((e.x-dragobj.xy[1]),(e.y-dragobj.xy[0])) dragobj.o.style.width=dragobj.xy[2]+"px" dragobj.o.style.height=dragobj.xy[3]+"px" dragobj.o.style.left=(e.x-dragobj.xx[0])+"px" dragobj.o.style.top=(e.y-dragobj.xx[1])+"px" dragobj.o.style.position="absolute" var om=document.createElement("div") dragobj.otemp=om om.style.width=dragobj.xy[2]+"px" om.style.height=dragobj.xy[3]+"px" dragobj.o.parentNode.insertBefore(om,dragobj.o) return false } } } document.onselectstart=function(){return false} window.onfocus=function(){document.onmouseup()} window.onblur=function(){document.onmouseup()} document.onmouseup=function(){ if(dragobj.o!=null){ dragobj.o.style.width="auto" dragobj.o.style.height="auto" dragobj.otemp.parentNode.insertBefore(dragobj.o,dragobj.otemp) dragobj.o.style.position="" oDel(dragobj.otemp) dragobj={} } } document.onmousemove=function(e){ e=e||event if(dragobj.o!=null){ dragobj.o.style.left=(e.x-dragobj.xx[0])+"px" dragobj.o.style.top=(e.y-dragobj.xx[1])+"px" createtmpl(e) } } function getxy(e){ var a=new Array() var t=e.offsetTop; var l=e.offsetLeft; var w=e.offsetWidth; var h=e.offsetHeight; while(e=e.offsetParent){ t+=e.offsetTop; l+=e.offsetLeft; } a[0]=t;a[1]=l;a[2]=w;a[3]=h return a; } function inner(o,e){ var a=getxy(o) if(e.x>a[1]&&e.x<(a[1]+a[2])&&e.y>a[0]&&e.y<(a[0]+a[3])){ if(e.y<(a[0]+a[3]/2)) return 1; else return 2; }else return 0; } function createtmpl(e){ for(var i=0;i<12;i++){ if($("m"+i)==dragobj.o) continue var b=inner($("m"+i),e) if(b==0) continue dragobj.otemp.style.width=$("m"+i).offsetWidth if(b==1){ $("m"+i).parentNode.insertBefore(dragobj.otemp,$("m"+i)) }else{ if($("m"+i).nextSibling==null){ $("m"+i).parentNode.appendChild(dragobj.otemp) }else{ $("m"+i).parentNode.insertBefore(dragobj.otemp,$("m"+i).nextSibling) } } return } for(var j=0;j<3;j++){ if($("dom"+j).innerHTML.inc("div")||$("dom"+j).innerHTML.inc("DIV")) continue var op=getxy($("dom"+j)) if(e.x>(op[1]+10)&&e.x<(op[1]+op[2]-10)){ $("dom"+j).appendChild(dragobj.otemp) dragobj.otemp.style.width=(op[2]-10)+"px" } } } </script> <div class="content"> <div class="left" id="dom0"> <div class="mo" id="m0"> <h1>dom0</h1> <div class="nr"></div> </div> <div class="mo" id="m1"> <h1>dom1</h1> <div class="nr"></div> </div> <div class="mo" id="m2"> <h1>dom2</h1> <div class="nr"></div> </div> <div class="mo" id="m3"> <h1>dom3</h1> <div class="nr"></div> </div> </div> <div class="center" id="dom1"> <div class="mo" id="m4"> <h1>dom4</h1> <div class="nr"></div> </div> <div class="mo" id="m5"> <h1>dom5</h1> <div class="nr"></div> </div> <div class="mo" id="m6"> <h1>dom6</h1> <div class="nr"></div> </div> <div class="mo" id="m7"> <h1>dom7</h1> <div class="nr"></div> </div> </div> <div class="right" id="dom2"> <div class="mo" id="m8"> <h1>dom8</h1> <div class="nr"></div> </div> <div class="mo" id="m9"> <h1>dom9</h1> <div class="nr"></div> </div> <div class="mo" id="m10"> <h1>dom10</h1> <div class="nr"></div> </div> <div class="mo" id="m11"> <h1>dom11</h1> <div class="nr"></div> </div> </div> </div>