BSRightItem
/**
* <p>标题: BSRightItem</p>
* <p>功能描述: 右键菜单项。</p>
* <p>作者: BinaryStar原创B/S框架</p>
* <p>版本: 0.1</p>
* <p>创建日期: 2005-12-21</p>
*/
function BSRightItem(pid, areaIndex, areaId, pIndex, index, text, jsfun, img, disabled)...{
this.pid = pid||"BSRightMenu_1";//BS右键菜单对象ID
this.areaIndex = areaIndex;//右键块索引
this.areaId = areaId||"";//BS右键菜单块ID
this.pIndex = pIndex;//父菜单项索引
this.level = 0;//树的深度
this.index = index;//本菜单项索引
this.id = this.areaId + "_item_" + this.index;//ID
this.text = text || "BS菜单项";//菜单项文字
this.jsfun = jsfun;//菜单项js函数
this.img = img||"";//菜单项图片
this.childList = new Array();//该菜单项包含的子菜单项
this.isSperator = false;//是否是分隔符
this.thisItemIndex = -1;//当前鼠标所在的子菜单项索引。
this.disabled = disabled || false;//该菜单项是否可用
this.childIsShow = false;//孩子菜单正在展现
this.key = "";//右键菜单项的key;
this.body = null;//该菜单项的对象；
this.isError = false;//该节点点击出错
this.setDisabled = function (flag)...{
if (flag)...{
this.disabled = true;
}
else...{
this.disabled = false;
}
}
//添加子菜单项
this.addItem = function (text, jsfun, img, disabled)...{
var rmObj = eval(this.pid);
return rmObj.itemAreaList[this.areaIndex].addItem(this.index, text, jsfun, img, disabled);
}
//菜单项的展现
this.show = function()...{
var rmObj = eval(this.pid);
var htmlStr = "";
var pName = rmObj.getRMName(this.level);
htmlStr += "<tr id=""+this.id+"_tr" style=""+bs_rm_out+""";
htmlStr += " onmouseover=""+pName+".itemAreaList["+this.areaIndex+"].itemList["+this.index+"].doOnmouseover(event, this)"";
htmlStr += " onmouseout=""+pName+".itemAreaList["+this.areaIndex+"].itemList["+this.index+"].doOnmouseout(event, this)"";
if (!this.isSperator && !this.disabled)...{
htmlStr += " onmouseup=""+pName+".itemAreaList["+this.areaIndex+"].itemList["+this.index+"].doOnmouseup(event, this)"";
htmlStr += " onmousedown=""+pName+".itemAreaList["+this.areaIndex+"].itemList["+this.index+"].doOnmousedown(event, this)"";
}
else...{
htmlStr += " onmouseup="event.cancelBubble=true;return false;"";
htmlStr += " onmousedown="event.cancelBubble=true;return false;"";
}
htmlStr += " onclick=window.event.cancelBubble=true;return false;";
htmlStr += ">";
//图片
if (!this.isSperator)...{
htmlStr += "<td align="right" ";
if (this.img.Trim() != "")...{
htmlStr += "style="22px;height:22px;";
htmlStr += "background: url("+rmObj.imagePath+this.img+");";
htmlStr += "background-repeat: no-repeat;";
htmlStr += "background-attachment: no-fixed;";
htmlStr += "background-position: right;"";
htmlStr += " valign="middle"> </td>";
}
else...{
htmlStr += "style="2px;height:22px;";
htmlStr += " valign="middle"> </td>";
}
//文字
var tempText = this.text;
var isLong = false;
var cn = 0;
if (tempText.match(/[^ -~]/g) != null)...{
cn = tempText.match(/[^ -~]/g).length;
}
if ((tempText.length-cn)+cn*2 >= 18)...{
if (cn <= 3)...{
tempText = tempText.substring(0, 18)+"...";
}
else ...{
tempText = tempText.substring(0, 10)+"...";
}
isLong = true;
}
htmlStr += "<td valign="middle" onmouseover="function(){return false;}"";
if (isLong)...{
htmlStr += " title=""+this.text+""";
}
if (this.disabled)...{
htmlStr += " style="color:Gray;white-space:nowrap;word-break:word-break ;"";
}
htmlStr += "><nobr onmouseover="function(){return false;}">"+tempText+" </nobr></td>";
//存在孩子时显示箭头。
htmlStr += "<td style='font-family: webdings;'>";
if (this.childList.length > 0)...{
htmlStr += "4";
}
htmlStr += "</td>";
}
else...{
//分隔符
htmlStr += "<td colspan="3" height="5"><hr style=""+bs_rm_sperator+""/></td>";
}
htmlStr += "</tr>";
return htmlStr;
}
//设置图片的背景色
this.setImgSelect = function(elmObj, flag)...{
//文字背景
if (!flag)...{
elmObj.style.cssText = bs_rm_out;
}
else if (this.isError)...{
elmObj.style.cssText = bs_rm_error;
}
else ...{
elmObj.style.cssText = bs_rm_over;
}
//图片背景
if (this.img.Trim() != "")...{
if (flag)...{
elmObj.cells[0].style.backgroundColor = "#8989bc";
}
else...{
elmObj.cells[0].style.backgroundColor = "";
}
}
}
//展现下一级菜单
this.showChildren = function(event)...{
var pobj = eval(this.pid);
var the_obj = event.srcElement.parentElement;
if (the_obj.tagName == "TD")...{
the_obj = the_obj.parentElement;
}
if (the_obj.id == this.id+"_tr_str")...{
the_obj = the_obj.parentElement;
}
if (this.childList.length > 0 && !this.disabled)...{
//创建popup
if (pobj.popupList[this.level+1] == null)...{
pobj.popupList[this.level+1] = pobj.popupList[this.level].document.parentWindow.createPopup();
pobj.popupList[this.level+1].document.oncontextmenu = function()...{return false;};
if (pobj.popupList[this.level+1].document.charset != "GB2312")...{
try...{
pobj.popupList[this.level+1].document.charset="GB2312";
}
catch(ex)...{
}
}
}
pobj.popupList[this.level+1].document.body.innerHTML = "";
pobj.popupList[this.level+1].show(0,0,1,1);
var htmlStr = "<table border='0' cellspacing='0'>";
for (var i=0; i<this.childList.length; i++)...{
htmlStr += pobj.itemAreaList[this.areaIndex].itemList[this.childList[i]].show();
}
htmlStr += "</table>";
var levelObj = null;
levelObj = pobj.popupList[this.level+1].document.getElementById(this.pid+"_rm_"+(this.level+1));
//level+1层没有创建
if (levelObj == null)...{
levelObj = pobj.popupList[this.level+1].document.createElement("div");
levelObj.id = this.pid+"_rm_"+(this.level+1);
levelObj.style.cssText = bs_rm_div;
pobj.popupList[this.level+1].document.body.appendChild(levelObj);
}
htmlStr += "<input type="hidden" id=""+pobj.id+"_selectItem" name=""+pobj.id+"_selectItem" value="-1"/>";
//alert(htmlStr);
levelObj.innerHTML = htmlStr;
levelObj.style.display = "block";
this.childIsShow = true;
var width = levelObj.offsetWidth;
var Height = levelObj.offsetHeight;
//定位
var left = GetDefineX(the_obj)+the_obj.offsetWidth;
var top = GetDefineY(the_obj);
if(((left+pobj.popupList[this.level].document.parentWindow.screenLeft)+levelObj.offsetWidth) >= window.screen.availWidth)...{
left -= (the_obj.offsetWidth + levelObj.offsetWidth-4);
}
if(((top+pobj.popupList[this.level].document.parentWindow.screenTop)+levelObj.offsetHeight) > window.screen.availHeight)...{
top -= (levelObj.offsetHeight-the_obj.offsetHeight);
}
pobj.popupList[this.level+1].show(left, top, width, Height, pobj.popupList[this.level].document.body);
}
else...{
pobj.hiddenAll(this.level+1);
}
}
//鼠标按下动作
this.doOnmousedown = function(event, elmObj)...{
event.cancelBubble=true;
if (this.childList.length <= 0)...{
elmObj.setCapture();
}
return false;
}
//鼠标弹起动作
this.doOnmouseup = function(event, elmObj)...{
event.cancelBubble=true;
if (this.childList.length <= 0)...{
var pobj = eval(this.pid);
pobj.setRMIndex(this.areaIndex, this.index);
elmObj.releaseCapture();
if (this.jsfun.Trim() != "")...{
try...{
eval(this.jsfun);
this.isError = false;
}
catch(e)...{
var errStr = "*^_^*恭喜你中招了! "+e.name+":"+e.message+" 节点操作方法 "+this.jsfun+" 发生严重错误！";
elmObj.style.cssText = bs_rm_error;
this.isError = true;
elmObj.title = errStr;
return;
}
}
pobj.hiddenAll(0);
}
return false;
}
//鼠标移入动作
this.doOnmouseover = function(event, elmObj)...{
event.cancelBubble=true;
if (!this.isSperator)...{
this.setImgSelect(elmObj, true);
}
//改变其他的项的高选
var pobj = eval(this.pid);
if (!pobj.itemAreaList[this.areaIndex].setIndexItem(this.level, this.index))...{
this.showChildren(event);
}
else if (this.childList.length <= 0)...{
pobj.hiddenAll(this.level+1);
}
pobj.setRMIndex(this.areaIndex, this.index);
return false;
}
//鼠标移出动作
this.doOnmouseout = function(event, elmObj)...{
event.cancelBubble=true;
if (!this.isSperator && !this.childIsShow)...{
this.setImgSelect(elmObj, false);
}
return false;
}
}
本文来自CSDN博客，转载请标明出处：http://blog.csdn.net/mynickel2000/archive/2006/09/12/1214623.aspx