Js弹出右键菜单

在正常的用户交互中，我们还是习惯于使用右键．
下面是用Js实现的右键弹出菜单：
<!鼠标右键导航菜单,拷贝就可以运行．>
<style type="text/css">

body           {font-size: 9pt;}
table          {font-size: 9pt; cursor: default; margin: 0;}
tr             {height: 20;}
tr.over        {font-size: 9pt; color: #ffffff; background-color: #66aadd; cursor: default;}
tr.out         {font-size: 9pt; color: #ffffff; background-color: #004477; cursor: default;}
div.rm_div     {position: absolute; filter: Alpha(Opacity='95'); display: none; border: 2px outset #3377aa; background-color: #004477; width: 0; height: 0;}
hr.sperator    {border: 1px inset #3377aa;}

</style>

<body background="images/bj.gif" oncontextmenu="self.event.returnValue=false" link="#00FF00" vlink="#00FF00" alink="#00FF00">
<script language="JScript">
\n";
    HTMLstr += "\n";
    HTMLstr += "\n";
    HTMLstr += "<div id='E_rbpm' class='rm_div'>\n";
                        // rbpm = right button pop menu
    HTMLstr += "<table width='100%' border='0' cellspacing='0'>\n";
    HTMLstr += "\n";
    HTMLstr += "</table>\n";
    HTMLstr += "</div>\n";
    HTMLstr += "";
    HTMLstr += "\n";
    HTMLstr += "\n";
}
function AddExtendMenu(id,name,parent)
{
    var TempStr = "";
    if(HTMLstr.indexOf("") != -1)
    {
      alert("E_"+id+"already exist!");
      return;
    }
    eval("A_"+parent+".length++");
    eval("A_"+parent+"[A_"+parent+".length-1] = id"); // 将此项注册到父菜单项的ID数组中去
    TempStr += "\n";
    TempStr += "<div id='E_"+id+"' class='rm_div'>\n";
    TempStr += "<table width='100%' border='0' cellspacing='0'>\n";
    TempStr += "";
    TempStr += "</table>\n";
    TempStr += "</div>\n";
    TempStr += "";
    TempStr += "";
    HTMLstr = HTMLstr.replace("",TempStr);

eval("A_"+id+" = new Array()");
    TempStr = "";
    TempStr += "\n";
    TempStr += "<tr id='P_"+id+"' class='out'";
    TempStr += " onmouseover='P_OnMouseOver(\""+id+"\",\""+parent+"\")'";
    TempStr += " onmouseout='P_OnMouseOut(\""+id+"\",\""+parent+"\")'";
    TempStr += " onmouseup=window.event.cancelBubble=true;";
    TempStr += " onclick=window.event.cancelBubble=true;";
    TempStr += "><td nowrap>";
    TempStr += "   "+name+"      </td><td style='font-family: webdings; text-align: right;'>4";
    TempStr += "</td></tr>\n";
    TempStr += "";
    HTMLstr = HTMLstr.replace("",TempStr);
}
function AddItem(id,name,parent,location)
{
    var TempStr = "";
    var ItemStr = "";
    if(id == "sperator")
    {
      TempStr += ItemStr+"\n";
      TempStr += "<tr style='height: 3;' class='out' onclick='window.event.cancelBubble=true;' onmouseup='window.event.cancelBubble=true;'><td colspan='2'><hr class='sperator'></td></tr>";
      TempStr += "";
      HTMLstr = HTMLstr.replace("",TempStr);
      return;
    }
    if(HTMLstr.indexOf(ItemStr) != -1)
    {
      alert("I_"+id+"already exist!");
      return;
    }
    TempStr += ItemStr+"\n";
    TempStr += "<tr id='I_"+id+"' class='out'";
    TempStr += " onmouseover='I_OnMouseOver(\""+id+"\",\""+parent+"\")'";
    TempStr += " onmouseout='I_OnMouseOut(\""+id+"\")'";
    TempStr += " onclick='window.event.cancelBubble=true;'";
    if(location == null)
      TempStr += " onmouseup='I_OnMouseUp(\""+id+"\",\""+parent+"\",null)'";
    else
      TempStr += " onmouseup='I_OnMouseUp(\""+id+"\",\""+parent+"\",\""+location+"\")'";
    TempStr += "><td nowrap>";
    TempStr += "   "+name+"   ";
    TempStr += "</td><td></td></tr>\n";
    TempStr += "";
    HTMLstr = HTMLstr.replace("",TempStr);
}
function GetMenu()
{
    return HTMLstr;
}
function I_OnMouseOver(id,parent)
{
    var Item;
    if(parent != "rbpm")
    {
      var ParentItem;
      ParentItem = eval("P_"+parent);
      ParentItem.className="over";
    }
    Item = eval("I_"+id);
    Item.className="over";
    HideAll(parent,1);
}
function I_OnMouseOut(id)
{
    var Item;
    Item = eval("I_"+id);
    Item.className="out";
}
function I_OnMouseUp(id,parent,location)
{
    var ParentMenu;
    window.event.cancelBubble=true;
    OnClick();
    ParentMenu = eval("E_"+parent);
    ParentMenu.display="none";
    if(location == null)
      eval("Do_"+id+"()");
    else
      window.open(location);
}
function P_OnMouseOver(id,parent)
{
    var Item;
    var Extend;
    var Parent;
    if(parent != "rbpm")
    {
      var ParentItem;
      ParentItem = eval("P_"+parent);
      ParentItem.className="over";
    }
    HideAll(parent,1);
    Item = eval("P_"+id);
    Extend = eval("E_"+id);
    Parent = eval("E_"+parent);
    Item.className="over";
    Extend.style.display="block";
    Extend.style.posLeft=document.body.scrollLeft+Parent.offsetLeft+Parent.offsetWidth-4;
    if(Extend.style.posLeft+Extend.offsetWidth > document.body.scrollLeft+document.body.clientWidth)
        Extend.style.posLeft=Extend.style.posLeft-Parent.offsetWidth-Extend.offsetWidth+8;
    if(Extend.style.posLeft < 0) Extend.style.posLeft=document.body.scrollLeft+Parent.offsetLeft+Parent.offsetWidth;
    Extend.style.posTop=Parent.offsetTop+Item.offsetTop;
    if(Extend.style.posTop+Extend.offsetHeight > document.body.scrollTop+document.body.clientHeight)
      Extend.style.posTop=document.body.scrollTop+document.body.clientHeight-Extend.offsetHeight;
    if(Extend.style.posTop < 0) Extend.style.posTop=0;
}
function P_OnMouseOut(id,parent)
{
}
function HideAll(id,flag)
{
    var Area;
    var Temp;
    var i;
    if(!flag)
    {
      Temp = eval("E_"+id);
      Temp.style.display="none";
    }
    Area = eval("A_"+id);
    if(Area.length)
    {
      for(i=0; i < Area.length; i++)
      {
        HideAll(Area[i],0);
        Temp = eval("E_"+Area[i]);
        Temp.style.display="none";
        Temp = eval("P_"+Area[i]);
        Temp.className="out";
      }
    }
}

posted on 2005-10-31 19:25 SysInfo 阅读(2716) 评论(1) 编辑收藏举报

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Js弹出右键菜单