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  • WEB窗口下的自绘菜单实例

    <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
    <html>
    <head>
    <title>AgetimeMenu Demo</title>
    <meta http-equiv="Content-Type" content="text/html; charset=gb2312">
    <style>
     .agetime_bar{
      position:absolute;top:0px;left:0px;height:22px;100%;border:1px outset;background-color:RGB(212,208,200);z-index:98;
     }
     .agetime_barItem{
      60px;height:20px;border:1px solid RGB(212,208,200);text-align:left;padding-left:10px;
      background:RGB(212,208,200);color:#000000;font-size:9pt;
     }
     .agetime_barItemDown{
      60px;height:20px;border:1px inset RGB(212,208,200);text-align:left;padding-left:10px;
      background:#F0F0F0;color:#000000;font-size:9pt;
     }
     .agetime_barItemHover{
      60px;height:20px;border:1 outset;text-align:left;padding-left:10px;
      background:#F0F0F0;color:#000000;font-size:9pt;
     }
     .agetime_pad{
      cursor:default;font-size:9pt;100%;
     }
     .agetime_padItem{
      100%;height:18px;border:1px solid RGB(212,208,200);text-align:left;padding-left:10px;
      background:RGB(212,208,200);color:#000000;font-size:9pt;
     }
     .agetime_padItemFalse{
      padding-left:10px;font-size:9pt; color:#808080;
     }
     .agetime_padItemFalseHover{
      padding-left:10px;font-size:9pt; color:#808080;background-color:#333366;
     }
     .agetime_padItemHover{
      100%;height:18px;text-align:left;padding-left:10px;
      background-color:#333366;color:#FFFFFF;font-size:9pt;
     }
     .agetime_padItemDown{
      100%;height:18px;text-align:left;padding-left:10px;border:1px inset;
      background-color:#9999CC;color:#FFFFFF;font-size:9pt;
     }
     .agetime_hr{
      border:1px inset;
     }
     .agetime_board{
      background-color:RGB(212,208,200);border:2px outset;
     }
    </style>
    </head>
    <body>
    <script language="javascript">
     var menu = agetimeMenu("agetime",
      [
       [
        ["文件",null,null,true,"打开文件"],  //显示文字,方法,命令,状态,状栏显示文字
        ["打开",null,null,false,"打开文件"],
        ["--"],
        ["你好","js","alert('Hello')",true,"一声问候"],
        ["新窗口","ABC","about:blank",true,"弹出ABC窗口"],
        ["空白",null,"about:blank",true,"在当前窗口显示空白页"]
       ],
       [
        ["编辑",null,null,false,"打开文件"],
        ["撤消",null,null,true,"打开文件"],
        ["重做",null,null,true,"打开文件"]
       ],
       [
        ["文件","js","alert('无子菜单')",true,"打开文件"]
       ]
      ]
     );
     //方法为"js"时,命令则为javascript语句,为非"js"值时,命令则是一个URL,而打开这个URL的目标位置则是方法所指定的窗口;
     //["你好","js","alert('Hello'),true,"一声问候"];
     //显示文字为"--"是按钮是一个分隔符;
    function agetimeMenu(id,array){
      var menu=this;
      menu.pad=null;     //装载各个子菜单
      menu.barItems=[];    //菜单条的各位按钮
      menu.pads=[];     //每个子菜单为一个table存放于menu.pad上;
      menu.selectedIndex=-1;  //菜单条选中按钮的索引值
      menu.board=null;    //子菜单面板

      //建立菜单条
      this.crtMenuBar=function(){
       var len=array.length;
       menu.bar = document.body.appendChild(document.createElement('div'));
       menu.bar.className=id+"_bar";
       for(var i=0;i<len;i++){
        menu.barItems[i]=menu.addMenuBarItem(array[i][0],i);
        menu.addMenuPad(array[i],i);
       }
      }

    //子菜单
      this.addMenuPad=function(ary,index){
       var len=ary.length;
       var pad=menu.crtElement("table",menu.pad);
       pad.cellSpacing=1;  pad.cellPadding=0;
       pad.className=id+"_pad";
       pad.style.display="none";
       for(var i=1;i<len;i++){
        var Row=pad.insertRow(i-1);
        menu.addMenuPadItem(ary[i],Row);
       }
       menu.pads[index]=pad;
      }

      //各子菜单按钮
      this.addMenuPadItem=function(ary,Row){
        var Cell=Row.insertCell(0);
        if(ary[0]!="--"){
         Cell.innerText=ary[0];
         if(ary[3]){  //有效状态;
          Cell.className=id+"_padItem";
          Cell.onmouseover=function(){
           Cell.className=id+"_padItemHover";
           window.status=ary[4];
          }
          Cell.onmouseout=function(){
           Cell.className=id+"_padItem";
           window.status="";
          }
          Cell.onmousedown=function(){ Cell.className=id+"_padItemDown"; }
          Cell.onmouseup=function(){
           Cell.className=id+"_padItemHover";
           menu.hideMenu();
           menu.execute(ary);
          }
         }
         else{  //按钮无效;
          Cell.className=id+"_padItemFalse";
          Cell.onmouseover=function(){
           Cell.className=id+"_padItemFalseHover";
           window.status=ary[4];
          }
          Cell.onmouseout=function(){
           Cell.className=id+"_padItemFalse";
           window.status="";
          }
         }
        }
        else{
         var hr=menu.crtElement("hr",Cell);
         hr.className=id+"_hr";
        }
        Cell.onclick=function(){
         event.cancelBubble=true;
        }
      }

    //菜单条的按钮
      this.addMenuBarItem=function(ary,index){
       var item=menu.crtElement("button",menu.bar);
       item.value=ary[0];
       item.disabled=!ary[3];
       item.className=id+"_barItem";
       item.onmouseover=function(){
        if(menu.selectedIndex==-1){
         item.className=id+"_barItemHover";
        }
        else{
         menu.barItems[selectedIndex].className=id+"_barItem";
         item.className=id+"_barItemDown";
         menu.showMenu(index);
        }
        window.status=ary[4];
       }
       item.onmouseout=function(){
        if(menu.selectedIndex==-1)  item.className=id+"_barItem";
        window.status="";
       }
       item.onclick=function(){
        event.cancelBubble=true;
        if(menu.selectedIndex==-1){
         item.className=id+"_barItemDown";
         menu.showMenu(index);
        }
        else{
         menu.hideMenu();
         item.className=id+"_barItemHover";
        }
        menu.execute(ary);
        item.blur();
       }
       return item;
      }
    //显示子菜单
      this.showMenu=function(index){
       if(menu.selectedIndex!=-1) menu.pads[selectedIndex].style.display="none";
       menu.board.style.pixelLeft=menu.barItems[index].offsetLeft+2;
       //menu.board.style.pixelHeight="";
       if(menu.pads[index].rows.length>0) menu.board.style.display="";
       else menu.board.style.display="none";
       menu.pads[index].style.display="";
       menu.selectedIndex=index;
      }
       //隐藏子菜单
      this.hideMenu=function(){
       if(menu.selectedIndex==-1) return;
       menu.barItems[menu.selectedIndex].className=id+"_barItem";
       menu.pads[selectedIndex].style.display="none";
       menu.selectedIndex=-1;
       menu.board.style.display="none";
      }

      //执行菜单命令;
      this.execute=function(ary){
       if(ary[2]==null) return;
       if(ary[1]=="js") { eval(ary[2]); menu.hideMenu(); }
       else if(ary[1]==null || ary[1].toLowerCase=="_self") location.href=ary[2];
       else{ var x=window.open(ary[2],ary[1]); x.focus(); }
      }

      //建立子菜单的显示面板
      this.crtMenuBoard=function(){
       document.write(
        "<div id='"+id+"_board' style='position:absolute;160px;height:10px;left:0px;top:20px;background-color:#666666;z-index:99;display:none;'>"+
         "<div style='position:absolute;100%;height:100%;left:0px;top:0px;'>"+
          "<iframe id='"+id+"_frame' name='"+id+"_frame' width='100%' height='100%' frameborder='0' scrolling='no'></iframe>"+
         "</div>"+
         "<div id='"+id+"_pad' style='position:absolute;100%;height:100%;left:0px;top:0px;'></div>"+
        "</div>"
       );
       menu.board=document.getElementById(id+"_board");
       menu.pad=document.getElementById(id+"_pad");
       menu.pad.className=id+"_board";
       menu.pad.onselectstart=function(){ return false;}
      }

    //增加对像的一个子元素
      this.crtElement=function(el,p){
       return p.appendChild(document.createElement(el));
      }

      //安装菜单;
      this.setup=function(){
       menu.crtMenuBoard();
       menu.crtMenuBar();
       document.attachEvent("onclick",menu.hideMenu);
      }

      menu.setup();
     }
    </script>
    </body>
    </html>

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  • 原文地址:https://www.cnblogs.com/vic_lu/p/1809300.html
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