这是我在dojo源码的基础上根据自己需要修改的， 另外也加入了咱们CSDN中林飞老师中的内容， 所以，有关版权处的信息我一直保留着 另外， 在此我要对所有CSDN内的老师们表示感谢，是你们让我的技术一步步提高，谢谢 /*--------------------------------------------------| | dTree 2.05 | www.destroydrop.com/javascript/tree/ | |---------------------------------------------------| | Copyright (c) 2002-2003 Geir Landr? | | | | This script can be used freely as long as all | | copyright messages are intact. | | | | Updated: 17.04.2003 | |--------------------------------------------------*/ function PopMenu(id) { //创建弹出式菜单实例 var oPopup = window.createPopup(); var oPopBody = oPopup.document.body; oPopBody.style.backgroundColor = "FFFFFF"; oPopBody.style.border = "solid black 1px"; oPopBody.innerHTML = "" +"<table cellpadding=0 cellspacing=0 border=0 width=100% style='font-size:12px;'>" +"<tr><td align=center valign=middle height=20 onmouSEOver=/"this.bgColor='highlight';this.style.color='highlighttext';/" " +"onmouSEOut=/"this.bgColor='';this.style.color=''/" onclick=/"parent.window.open('link_addnode.jsp');/">添加下级</td></tr>" +"<tr><td bgcolor='threedshadow' height=1></td></tr>" +"<tr><td align=center valign=middle height=20 onmouSEOver=/"this.bgColor='highlight';this.style.color='highlighttext';/" " +"onmouSEOut=/"this.bgColor='';this.style.color=''/" onclick=/"parent.window.open('/news/view.asp?id="+id+"');/">编辑</td></tr>" +"<tr><td bgcolor='threedshadow' height=1></td></tr>" +"<tr><td align=center valign=middle height=20 onmouSEOver=/"this.bgColor='highlight';this.style.color='highlighttext';/" " +"onmouSEOut=/"this.bgColor='';this.style.color=''/" onclick=/"parent.document.frames['main'].location=" +"'newsimgdel.asp?id="+id+"'/">删除 </td></tr><table>"; oPopup.show(event.x,event.y,90,61,document.body); return false; } // Node object function Node(id,pid,name,url,title,target,icon,iconOpen,open) { this.id = id; this.pid = pid; this.name = name; this.url = url; this.title = title; this.target = target; this.icon = icon; this.iconOpen = iconOpen; this._io = open || false; this._is = false; this._ls = false; this._hc = false; this._ai = 0; this._p; }; // Tree object function dTree(objName) { this.config = { target : null,folderLinks : true,useSelection : true,useCookies : true,useLines : true,useIcons : true,useStatusText : false,closeSameLevel : false,inOrder : false } this.icon = { root : 'img/base.gif',folder : 'img/folder.gif',folderOpen : 'img/folderopen.gif',node : 'img/page.gif',empty : 'img/empty.gif',line : 'img/line.gif',join : 'img/join.gif',joinBottom : 'img/joinbottom.gif',plus : 'img/plus.gif',plusBottom : 'img/plusbottom.gif',minus : 'img/minus.gif',minusBottom : 'img/minusbottom.gif',nlPlus : 'img/nolines_plus.gif',nlMinus : 'img/nolines_minus.gif' }; this.obj = objName; this.aNodes = []; this.aIndent = []; this.root = new Node(-1); this.selectedNode = null; this.selectedFound = false; this.completed = false; }; // Adds a new node to the node array dTree.prototype.add = function(id,open) { this.aNodes[this.aNodes.length] = new Node(id,open); }; // Open/close all nodes dTree.prototype.openAll = function() { this.oAll(true); }; dTree.prototype.closeAll = function() { this.oAll(false); }; // Outputs the tree to the page dTree.prototype.toString = function() { var str = '<div class="dtree">/n'; if (document.getElementById) { if (this.config.useCookies) this.selectedNode = this.getSelected(); str += this.addNode(this.root); } else str += 'Browser not supported.'; str += '</div>'; if (!this.selectedFound) this.selectedNode = null; this.completed = true; return str; }; // Creates the tree structure dTree.prototype.addNode = function(pNode) { var str = ''; var n=0; if (this.config.inOrder) n = pNode._ai; for (n; n<this.aNodes.length; n++) { if (this.aNodes[n].pid == pNode.id) { var cn = this.aNodes[n]; cn._p = pNode; cn._ai = n; this.setCS(cn); if (!cn.target && this.config.target) cn.target = this.config.target; if (cn._hc && !cn._io && this.config.useCookies) cn._io = this.isOpen(cn.id); if (!this.config.folderLinks && cn._hc) cn.url = null; if (this.config.useSelection && cn.id == this.selectedNode && !this.selectedFound) { cn._is = true; this.selectedNode = n; this.selectedFound = true; } str += this.node(cn,n); if (cn._ls) break; } } return str; }; // Creates the node icon,url and text dTree.prototype.node = function(node,nodeId) { var str = '<div class="dTreeNode">' + this.indent(node,nodeId); if (this.config.useIcons) { if (!node.icon) node.icon = (this.root.id == node.pid) ? this.icon.root : ((node._hc) ? this.icon.folder : this.icon.node); if (!node.iconOpen) node.iconOpen = (node._hc) ? this.icon.folderOpen : this.icon.node; if (this.root.id == node.pid) { node.icon = this.icon.root; node.iconOpen = this.icon.root; } str += '<img id="i' + this.obj + nodeId + '" src="' + ((node._io) ? node.iconOpen : node.icon) + '" alt="" />'; } if (node.url) { str += '<a id="s' + this.obj + nodeId + '" class="' + ((this.config.useSelection) ? ((node._is ? 'nodeSel' : 'node')) : 'node') + '" href="' + node.url + '"'+' oncontextmenu="PopMenu('+node.id+');return false;"'; if (node.title) str += ' title="' + node.title + '"'; if (node.target) str += ' target="' + node.target + '"'; if (this.config.useStatusText) str += ' onmouSEOver="window.status=/'' + node.name + '/';return true;" onmouSEOut="window.status=/'/';return true;" '; if (this.config.useSelection && ((node._hc && this.config.folderLinks) || !node._hc)) str += ' onclick="javascript: ' + this.obj + '.s(' + nodeId + ');"'; str += '>'; } else if ((!this.config.folderLinks || !node.url) && node._hc && node.pid != this.root.id) str += '<a href="javascript: ' + this.obj + '.o(' + nodeId + ');" class="node">'; str += node.name; if (node.url || ((!this.config.folderLinks || !node.url) && node._hc)) str += '</a>'; str += '</div>'; if (node._hc) { str += '<div id="d' + this.obj + nodeId + '" class="clip" style="display:' + ((this.root.id == node.pid || node._io) ? 'block' : 'none') + ';">'; str += this.addNode(node); str += '</div>'; } this.aIndent.pop(); return str; }; // Adds the empty and line icons dTree.prototype.indent = function(node,nodeId) { var str = ''; if (this.root.id != node.pid) { for (var n=0; n<this.aIndent.length; n++) str += '<img src="' + ( (this.aIndent[n] == 1 && this.config.useLines) ? this.icon.line : this.icon.empty ) + '" alt="" />'; (node._ls) ? this.aIndent.push(0) : this.aIndent.push(1); if (node._hc) { str += '<a href="javascript: ' + this.obj + '.o(' + nodeId + ');"><img id="j' + this.obj + nodeId + '" src="'; if (!this.config.useLines) str += (node._io) ? this.icon.nlMinus : this.icon.nlPlus; else str += ( (node._io) ? ((node._ls && this.config.useLines) ? this.icon.minusBottom : this.icon.minus) : ((node._ls && this.config.useLines) ? this.icon.plusBottom : this.icon.plus ) ); str += '" alt="" oncontextmenu="PopMenu('+node.id+');return false;" /></a>'; } else str += '<img src="' + ( (this.config.useLines) ? ((node._ls) ? this.icon.joinBottom : this.icon.join ) : this.icon.empty) + '" alt="" />'; } return str; }; // Checks if a node has any children and if it is the last sibling dTree.prototype.setCS = function(node) { var lastId; for (var n=0; n<this.aNodes.length; n++) { if (this.aNodes[n].pid == node.id) node._hc = true; if (this.aNodes[n].pid == node.pid) lastId = this.aNodes[n].id; } if (lastId==node.id) node._ls = true; }; // Returns the selected node dTree.prototype.getSelected = function() { var sn = this.getCookie('cs' + this.obj); return (sn) ? sn : null; }; // Highlights the selected node dTree.prototype.s = function(id) { if (!this.config.useSelection) return; var cn = this.aNodes[id]; if (cn._hc && !this.config.folderLinks) return; if (this.selectedNode != id) { if (this.selectedNode || this.selectedNode==0) { eOld = document.getElementById("s" + this.obj + this.selectedNode); eOld.className = "node"; } eNew = document.getElementById("s" + this.obj + id); eNew.className = "nodeSel"; this.selectedNode = id; if (this.config.useCookies) this.setCookie('cs' + this.obj,cn.id); } }; // Toggle Open or close dTree.prototype.o = function(id) { var cn = this.aNodes[id]; this.nodeStatus(!cn._io,id,cn._ls); cn._io = !cn._io; if (this.config.closeSameLevel) this.closeLevel(cn); if (this.config.useCookies) this.updateCookie(); }; // Open or close all nodes dTree.prototype.oAll = function(status) { for (var n=0; n<this.aNodes.length; n++) { if (this.aNodes[n]._hc && this.aNodes[n].pid != this.root.id) { this.nodeStatus(status,n,this.aNodes[n]._ls) this.aNodes[n]._io = status; } } if (this.config.useCookies) this.updateCookie(); }; // Opens the tree to a specific node dTree.prototype.openTo = function(nId,bSelect,bFirst) { if (!bFirst) { for (var n=0; n<this.aNodes.length; n++) { if (this.aNodes[n].id == nId) { nId=n; break; } } } var cn=this.aNodes[nId]; if (cn.pid==this.root.id || !cn._p) return; cn._io = true; cn._is = bSelect; if (this.completed && cn._hc) this.nodeStatus(true,cn._ai,cn._ls); if (this.completed && bSelect) this.s(cn._ai); else if (bSelect) this._sn=cn._ai; this.openTo(cn._p._ai,false,true); }; // Closes all nodes on the same level as certain node dTree.prototype.closeLevel = function(node) { for (var n=0; n<this.aNodes.length; n++) { if (this.aNodes[n].pid == node.pid && this.aNodes[n].id != node.id && this.aNodes[n]._hc) { this.nodeStatus(false,this.aNodes[n]._ls); this.aNodes[n]._io = false; this.closeAllChildren(this.aNodes[n]); } } } // Closes all children of a node dTree.prototype.closeAllChildren = function(node) { for (var n=0; n<this.aNodes.length; n++) { if (this.aNodes[n].pid == node.id && this.aNodes[n]._hc) { if (this.aNodes[n]._io) this.nodeStatus(false,this.aNodes[n]._ls); this.aNodes[n]._io = false; this.closeAllChildren(this.aNodes[n]); } } } // Change the status of a node(open or closed) dTree.prototype.nodeStatus = function(status,bottom) { eDiv = document.getElementById('d' + this.obj + id); eJoin = document.getElementById('j' + this.obj + id); if (this.config.useIcons) { eIcon = document.getElementById('i' + this.obj + id); eIcon.src = (status) ? this.aNodes[id].iconOpen : this.aNodes[id].icon; } eJoin.src = (this.config.useLines)? ((status)?((bottom)?this.icon.minusBottom:this.icon.minus):((bottom)?this.icon.plusBottom:this.icon.plus)): ((status)?this.icon.nlMinus:this.icon.nlPlus); eDiv.style.display = (status) ? 'block': 'none'; }; // [Cookie] Clears a cookie dTree.prototype.clearCookie = function() { var now = new Date(); var yesterday = new Date(now.getTime() - 1000 * 60 * 60 * 24); this.setCookie('co'+this.obj,'cookieValue',yesterday); this.setCookie('cs'+this.obj,yesterday); }; // [Cookie] Sets value in a cookie dTree.prototype.setCookie = function(cookieName,cookieValue,expires,path,domain,secure) { document.cookie = escape(cookieName) + '=' + escape(cookieValue) + (expires ? '; expires=' + expires.toGMTString() : '') + (path ? '; path=' + path : '') + (domain ? '; domain=' + domain : '') + (secure ? '; secure' : ''); }; // [Cookie] Gets a value from a cookie dTree.prototype.getCookie = function(cookieName) { var cookieValue = ''; var posName = document.cookie.indexOf(escape(cookieName) + '='); if (posName != -1) { var posValue = posName + (escape(cookieName) + '=').length; var endPos = document.cookie.indexOf(';',posValue); if (endPos != -1) cookieValue = unescape(document.cookie.substring(posValue,endPos)); else cookieValue = unescape(document.cookie.substring(posValue)); } return (cookieValue); }; // [Cookie] Returns ids of open nodes as a string dTree.prototype.updateCookie = function() { var str = ''; for (var n=0; n<this.aNodes.length; n++) { if (this.aNodes[n]._io && this.aNodes[n].pid != this.root.id) { if (str) str += '.'; str += this.aNodes[n].id; } } this.setCookie('co' + this.obj,str); }; // [Cookie] Checks if a node id is in a cookie dTree.prototype.isOpen = function(id) { var aOpen = this.getCookie('co' + this.obj).split('.'); for (var n=0; n<aOpen.length; n++) if (aOpen[n] == id) return true; return false; }; // If Push and pop is not implemented by the browser if (!Array.prototype.push) { Array.prototype.push = function array_push() { for(var i=0;i<arguments.length;i++) this[this.length]=arguments[i]; return this.length; } }; if (!Array.prototype.pop) { Array.prototype.pop = function array_pop() { lastElement = this[this.length-1]; this.length = Math.max(this.length-1,0); return lastElement; } }; 原文链接：https://www.f2er.com/dojo/291870.html