dTree复选框取得子节点ID与Value，结合lhgdialog

最新推荐文章于 2020-01-03 10:55:40 发布

原创最新推荐文章于 2020-01-03 10:55:40 发布 · 1.1k 阅读

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CC 4.0 BY-SA版权

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#function #javascript #io #domain #class #tree

本文介绍了如何在JavaScript中利用dTree实现复选框功能，并与lhgdialog对话框结合，展示如何获取选中节点的ID和Value。通过示例代码展示了dTree的getCheckedChildId和getCheckedChildValue方法，用于获取选中子节点的ID和Value。此外，还展示了如何在弹出窗口中调用这些方法。

index页部分

content.jsp部分：

<mce:script type="text/javascript"></mce:script> </head> <body> <div id="val" style="border:1px solid #666;padding:5px;float:left;" mce_style="border:1px solid #666;padding:5px;float:left;">我是窗口中的文本</div> <div class="dtree"> <p><a href="javascript: d.openAll();" mce_href="javascript: d.openAll();">open all</a> | <a href="javascript: d.closeAll();" mce_href="javascript: d.closeAll();">close all</a></p> <mce:script language="javascript"></mce:script> </div> </body>

改进后的dTree.js部分：

/*--------------------------------------------------| | 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 | |--------------------------------------------------*/ // Node object function Node(id, pid, name, check, parm, url, title, target, icon, iconOpen, open) { this.id = id; this.check = check; this.parm = parm; 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; this.pNode; this.cNode = new Array(); this.toString = function () { return "[" + "id:" + this.id + ",pid:" + this.pid + ",name:" + this.name + "]"; }; } // 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 : 'images/base.gif', folder : 'images/diannao.gif', folderOpen : 'images/diannao.gif', node : 'images/diannao.gif', empty : 'images/empty.gif', line : 'images/line.gif', join : 'images/join.gif', joinBottom : 'images/joinbottom.gif', plus : 'images/plus.gif', plusBottom : 'images/plusbottom.gif', minus : 'images/minus.gif', minusBottom : 'images/minusbottom.gif', nlPlus : 'images/nolines_plus.gif', nlMinus : 'images/nolines_minus.gif' }; this.obj = objName; this.aNodes = []; this.aIndent = []; this.root = new Node(-1); this.selectedNode = null; this.selectedFound = false; this.completed = false; } dTree.prototype.getCheckedValue = function () { var value = new Array(); for (var n = 0; n < this.aNodes.length; n++) { if (this.aNodes[n].check === "true" || this.aNodes[n].check === true) { value[value.length] = this.aNodes[n].parm; } } return value; }; /** leo 自定义 */ dTree.prototype.getCheckedId = function () { var value = new Array(); for (var n = 0; n < this.aNodes.length; n++) { if (this.aNodes[n].check === "true" || this.aNodes[n].check === true) { value[value.length] = this.aNodes[n].id; } } return value; }; dTree.prototype.getCheckedChildValue = function () { var value = new Array(); var pValue = new Array(); for (var n = 0; n < this.aNodes.length; n++) { if (this.aNodes[n].check === "true" || this.aNodes[n].check === true) { value[value.length] = this.aNodes[n].parm; if(this.aNodes[n].pNode.parm!=null){ pValue[pValue.length] = this.aNodes[n].pNode.parm; } } } //去除重复记录 pValue.unique() for(var i=0; i<pValue.length; i++){ value.remove(value.indexOf(pValue[i])); } //alert(value); return value; }; dTree.prototype.getCheckedChildId = function () { var value = new Array(); var pValue = new Array(); for (var n = 0; n < this.aNodes.length; n++) { if (this.aNodes[n].check === "true" || this.aNodes[n].check === true) { value[value.length] = this.aNodes[n].id; if(this.aNodes[n].pNode.parm!=null){ pValue[pValue.length] = this.aNodes[n].pNode.id; } } } //去除重复记录 pValue.unique() for(var i=0; i<pValue.length; i++){ value.remove(value.indexOf(pValue[i])); } return value; }; //去掉数组重复的项 Array.prototype.unique = function() { var a = {}; for(var i=0; i<this.length; i++) { if(typeof a[this[i]] == "undefined") a[this[i]] = 1; } this.length = 0; for(var i in a) this[this.length] = i; return this; }; /* 　 *　方法:Array.remove(dx) 　 *　功能:删除数组元素. 　 *　参数:dx删除元素的下标. 　 *　返回:在原数组上修改数组 a = ['1','2','3','4','5']; 　 alert("elements: "+a+"nLength: "+a.length); 　 a.remove(0); //删除下标为0的元素　 alert("elements: "+a+"nLength: "+a.length); //经常用的是通过遍历,重构数组. 　 */ Array.prototype.remove=function(dx) { 　　if(isNaN(dx)||dx>this.length){return false;} 　　for(var i=0,n=0;i<this.length;i++) 　　{ 　　　　if(this[i]!=this[dx]) 　　　　{ 　　　　　　this[n++]=this[i] 　　　　} 　　} 　　this.length-=1 }; Array.prototype.indexOf = function(p_var) { for(var i=0; i<this.length;i++) { if(this[i]==p_var) { return(i); } } return(-1); }; dTree.prototype.test = function () { for (var n = 0; n < this.aNodes.length; n++) { alert(this.aNodes[n].name + ":" + this.aNodes[n].check); } }; // Adds a new node to the node array dTree.prototype.add = function (id, pid, name, check, parm , url, title, target, icon, iconOpen, open) { this.aNodes[this.aNodes.length] = new Node(id, pid, name, check, parm , url, title, target, icon, iconOpen, 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; cn.pNode = pNode; pNode.cNode[pNode.cNode.length] = cn; 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; }; dTree.prototype.checkNode = function (nodeId) { var check = document.getElementById(("c" + this.obj) + nodeId); var node = this.getNode(nodeId); node.check = check.checked; if (check.checked) { this.checkChildreNode(node, true); this.checkParentNode(node, true); } else { this.checkChildreNode(node, false); } }; dTree.prototype.checkChildreNode = function (node, check) { for (var i = 0; i < node.cNode.length; i++) { var pCheck = document.getElementById(("c" + this.obj) + node.cNode[i].id); if (pCheck) { pCheck.checked = check; node.cNode[i].check = check; } if (node.cNode[i].cNode.length > 0) { this.checkChildreNode(node.cNode[i], check); } } }; dTree.prototype.checkParentNode = function (node, check) { while (node.pNode) { var pCheck = document.getElementById(("c" + this.obj) + node.pNode.id); if (pCheck) { pCheck.checked = check; node.pNode.check = check; } node = node.pNode; } }; dTree.prototype.getNode = function (nodeId) { for (var n = 0; n < this.aNodes.length; n++) { if (this.aNodes[n].id === nodeId) { return this.aNodes[n]; break; } } }; // 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; } if (node.check && node.check != "") { str += "<input name='" + this.obj + "' id='c" + this.obj + node.id + "'onclick='" + this.obj + ".checkNode(" + node.id + ")' type='checkbox' value='" + node.parm + "' " + (node.check === "true" ? "checked='checked'" : "") + " />"; } else { str += "<img id=/"i" + this.obj + nodeId + "/" src="/" mce_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="/" mce_href="/""" + node.url + "/""; 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="/" mce_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="/" mce_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="/" mce_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="/" mce_href="/""javascript: " + this.obj + ".o(" + nodeId + ");/"><img id=/"j" + this.obj + nodeId + "/" src="/" mce_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=/"/" /></a>"; } else { str += "<img src="/" mce_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, n, 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, n, 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, id, 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); if (eIcon) { 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, "cookieValue", 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; }; }

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