524 lines
15 KiB
JavaScript
524 lines
15 KiB
JavaScript
/*--------------------------------------------------|
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| dTree 2.05 | www.destroydrop.com/javascript/tree/ |
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|---------------------------------------------------|
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| Copyright (c) 2002-2003 Geir Landr<64> |
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| |
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| This script can be used freely as long as all |
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| copyright messages are intact. |
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| |
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| Updated: 17.04.2003 |
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|--------------------------------------------------*/
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// Node object
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function Node(id, pid, name, url,icon,iconClose,iconOpen,description,position,open,attributes) {
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this.id = id; //id
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this.pid = pid;//父id
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this.name = name;//节点显示名称
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this.url = url;//单击节点时候a标签的链接地址
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this.icon = icon; //图标
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this.iconClose = iconClose; //图标
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this.iconOpen = iconOpen;//打开时图标
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this.description = description;
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this.position = position;
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this.attributes = attributes||{};
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this.open = open;
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this._io = open || false; //是否被打开
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this._is = false; //是否被选中
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this._ls = false; //是否是父节点的最后一个子节点
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this._hc = false; //是否存在子节点
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this._ai = 0;//被添加的索引
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this._p; //父节点
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};
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//触发contextMenu事件
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function dTreeContextMenuEvent(dtree)
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{
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var allNodesArr = dtree.aNodes;
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for(var i=0;i<allNodesArr.length;i++)
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{
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var node = allNodesArr[i];
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var nodeId = i;
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if(node.pid != dtree.root.id)
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{
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var contextMenuEventFunc = (function(nodeId,dtree){
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return function(e){
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try
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{
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getEvent(e).returnValue=false;
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getEvent(e).preventDefault();
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getEvent(e).stopPropagation();
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}catch(e)
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{
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getEvent(e).returnValue=false;
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}
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dtree.oncontextmenu(getEvent(e),nodeId);
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};
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})(nodeId,dtree);
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document.getElementById("s"+dtree.obj+nodeId).oncontextmenu = contextMenuEventFunc;
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}
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else
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{
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var contextMenuEventFunc = (function(nodeId,dtree){
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return function(e){
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try
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{
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getEvent(e).returnValue=false;
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getEvent(e).preventDefault();
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getEvent(e).stopPropagation();
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}catch(e)
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{
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getEvent(e).returnValue=false;
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}
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dtree.onrootcontextmenu(getEvent(e),nodeId);
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};
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})(nodeId,dtree);
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document.getElementById("s"+dtree.obj+nodeId).oncontextmenu = contextMenuEventFunc;
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}
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}
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}
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// Tree object
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function dTree(objName) {
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this.config = {
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target : null, //a标签的target
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folderLinks : true, //关联图标点击
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useSelection : true, //选中时候高亮
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useCookies : true, //使用coolie记录选择的节点
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useLines : true, //使用线条进行连接
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useIcons : true, //使用图标
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useStatusText : false, //状态栏显示鼠标所在的节点
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closeSameLevel : false, //关联同一级的所有节点进行关闭操作
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inOrder : false //父节点在子节点之前进行添加
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};
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this.icon = {
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root : 'base.gif',
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folder : 'folder.gif',
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folderOpen : 'folderopen.gif',
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node : 'page.gif',
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empty : getRootPath()+'/images/empty.gif',
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line : getRootPath()+'/images/line.gif',
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join : getRootPath()+'/images/join.gif',
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joinBottom : getRootPath()+'/images/joinbottom.gif',
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plus : getRootPath()+'/images/plus.gif',
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plusBottom : getRootPath()+'/images/plusbottom.gif',
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minus : getRootPath()+'/images/minus.gif',
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minusBottom : getRootPath()+'/images/minusbottom.gif',
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nlPlus : getRootPath()+'/images/nolines_plus.gif',
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nlMinus : getRootPath()+'/images/nolines_minus.gif'
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};
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this.obj = objName;
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this.aNodes = []; //装载所有节点的数组
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this.aIndent = []; //记录缩进量的数组
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this.root = new Node(-1);//根节点为-1
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this.selectedNode = null; //被选择的节点
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this.selectedFound = false;//找到被选择的节点
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this.completed = false;//是否遍历加载完成标志
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};
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// Adds a new node to the node array
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dTree.prototype.add = function(id, pid, name, url,icon,iconClose,iconOpen,description,position,open,attributes) {
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this.aNodes[this.aNodes.length] = new Node(id, pid, name, url,icon,iconClose,iconOpen,description,position,open,attributes);
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};
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// Open/close all nodes
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dTree.prototype.openAll = function() {
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this.oAll(true);
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};
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dTree.prototype.closeAll = function() {
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this.oAll(false);
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};
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// Outputs the tree to the page
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dTree.prototype.toString = function() {
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var str = '<div class="dtree">\n';
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if (document.getElementById) {
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if (this.config.useCookies) this.selectedNode = this.getSelected();
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str += this.addNode(this.root);
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} else str += 'Browser not supported.';
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str += '</div>';
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if (!this.selectedFound) this.selectedNode = null;
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this.completed = true;
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return str;
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};
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// Creates the tree structure
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dTree.prototype.addNode = function(pNode) {
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var str = '';
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var n=0;
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if (this.config.inOrder) n = pNode._ai;
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for (n; n<this.aNodes.length; n++) {
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if (this.aNodes[n].pid == pNode.id) {
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var cn = this.aNodes[n];
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cn._p = pNode;
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cn._ai = n;
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this.setCS(cn);
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if (!cn.target && this.config.target) cn.target = this.config.target;
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if (cn._hc && !cn._io && this.config.useCookies) cn._io = this.isOpen(cn.id);
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if (!this.config.folderLinks && cn._hc) cn.url = null;
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if (this.config.useSelection && cn.id == this.selectedNode && !this.selectedFound) {
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cn._is = true;
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this.selectedNode = n;
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this.selectedFound = true;
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}
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str += this.node(cn, n);
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if (cn._ls) break;
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}
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}
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return str;
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};
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dTree.prototype.oncontextmenu=function(e,nodeIndex){
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};
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dTree.prototype.onrootcontextmenu=function(e,nodeIndex){
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};
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dTree.prototype.onrootclick=function(e,nodeIndex){
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};
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// Creates the node icon, url and text
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//nodeId indicator the dtree aNodes[index] index指的是添加的索引从 [ 0 -- (aNodes.length-1) ]
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dTree.prototype.node = function(node, nodeId) {
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var str = '<div class="dTreeNode">' + this.indent(node, nodeId);
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if (this.config.useIcons) {
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if(!node.icon) node.icon = this.icon.node;//(this.root.id == node.pid) ? this.icon.root : ((node._hc) ? this.icon.folder : this.icon.node);
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if (!node.iconClose)
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node.iconClose = this.icon.folder;
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if (!node.iconOpen) node.iconOpen = this.icon.folderOpen;//(node._hc) ? this.icon.folderOpen : node.icon;
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if (this.root.id == node.pid) {
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node.icon = this.icon.root;
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node.iconClose = this.icon.root;
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node.iconOpen = this.icon.root;
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}
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var prefix_icon = getRootPath()+"/menuIcons/";
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//if('indexMenuTree'==this.obj){alert(prefix_icon+"或追"+node.icon);}
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node.icon = prefix_icon+node.icon;
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node.iconClose = prefix_icon+node.iconClose;
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node.iconOpen = prefix_icon+node.iconOpen;
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if(node._hc)
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{
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str += '<img id="i' + this.obj + nodeId + '" src="' + ((node._io) ? node.iconOpen : node.iconClose) + '" alt="" />';
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}
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else
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{
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str += '<img id="i' + this.obj + nodeId + '" src="' + node.icon + '" alt="" />';
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}
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}
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if(node._is)
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{
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this.selectedNode = nodeId;
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}
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if (node.pid != this.root.id)
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{
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str += '<a id="s'+this.obj+nodeId+'" href="javascript:void(0)" oncontextmenu="javascript:'+this.obj+'.oncontextmenu('+nodeId+')" onclick="javascript: ' + this.obj + '.onclick(' + nodeId + ');" class="'+((this.config.useSelection) ? ((node._is ? 'nodeSel' : 'node')) : 'node')+'">';
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//str += '<a id="s' + this.obj + nodeId + '" class="' + ((this.config.useSelection) ? ((node._is ? 'nodeSel' : 'node')) : 'node') + '" href="javascript: ' + this.obj + '.onclick(' + nodeId + ')"';
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}
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else
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{
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str += '<a id="s'+this.obj+nodeId+'" href="javascript:void(0)" oncontextmenu="javascript:'+this.obj+'.onrootcontextmenu('+nodeId+')" onclick="javascript: ' + this.obj + '.onrootclick(' + nodeId + ');" class="'+((this.config.useSelection) ? ((node._is ? 'nodeSel' : 'node')) : 'node')+'">';
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//str +='<a href="javascript:void(0)" onclick="javascript:'+this.obj+'.onrootclick('+nodeId+')" oncontextmenu="javascript:'+this.obj+'.onrootcontextmenu('+nodeId+')">';
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}
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str += node.name+'</a>';
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str += '</div>';
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if (node._hc) {
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str += '<div id="d' + this.obj + nodeId + '" class="clip" style="display:' + ((this.root.id == node.pid || node._io) ? 'block' : 'none') + ';">';
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str += this.addNode(node);
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str += '</div>';
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}
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this.aIndent.pop();
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return str;
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};
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// Adds the empty and line icons
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dTree.prototype.indent = function(node, nodeId) {
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var str = '';
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if (this.root.id != node.pid) {
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for (var n=0; n<this.aIndent.length; n++)
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str += '<img src="' + ( (this.aIndent[n] == 1 && this.config.useLines) ? this.icon.line : this.icon.empty ) + '" alt="" />';
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(node._ls) ? this.aIndent.push(0) : this.aIndent.push(1);
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if (node._hc) {
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str += '<a href="javascript: ' + this.obj + '.dropDown(' + nodeId + ');"><img id="j' + this.obj + nodeId + '" src="';
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if (!this.config.useLines) str += (node._io) ? this.icon.nlMinus : this.icon.nlPlus;
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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 ) );
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str += '" alt="" /></a>';
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} else str += '<img src="' + ( (this.config.useLines) ? ((node._ls) ? this.icon.joinBottom : this.icon.join ) : this.icon.empty) + '" alt="" />';
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}
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return str;
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};
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// Checks if a node has any children and if it is the last sibling
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dTree.prototype.setCS = function(node) {
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var lastId;
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for (var n=0; n<this.aNodes.length; n++) {
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if (this.aNodes[n].pid == node.id) node._hc = true;
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if (this.aNodes[n].pid == node.pid) lastId = this.aNodes[n].id;
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}
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if (lastId==node.id) node._ls = true;
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};
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// Returns the selected node
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dTree.prototype.getSelected = function() {
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var sn = this.getCookie('cs' + this.obj);
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return (sn) ? sn : null;
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};
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// Highlights the selected node
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dTree.prototype.s = function(id) {
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if (!this.config.useSelection) return;
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var cn = this.aNodes[id];
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//if (cn._hc && !this.config.folderLinks) return;
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if (this.selectedNode != id) {
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if (this.selectedNode || this.selectedNode==0) {
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eOld = document.getElementById("s" + this.obj + this.selectedNode);
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if(eOld)
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eOld.className = "node";
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}
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eNew = document.getElementById("s" + this.obj + id);
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eNew.className = "nodeSel";
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this.selectedNode = id;
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if (this.config.useCookies) this.setCookie('cs' + this.obj, cn.id);
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}
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//不兼容火狐
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//window.event.returnValue = false;
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return false;
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};
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// Toggle Open or close
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dTree.prototype.onclick = function(id) {
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var cn = this.aNodes[id];
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this.nodeStatus(!cn._io, id, cn._ls);
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cn._io = !cn._io;
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if (this.config.closeSameLevel) this.closeLevel(cn);
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if (this.config.useCookies) this.updateCookie();
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};
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//Toggle Open or close
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dTree.prototype.dropDown = function(id) {
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var cn = this.aNodes[id];
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this.nodeStatus(!cn._io, id, cn._ls);
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cn._io = !cn._io;
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if (this.config.closeSameLevel) this.closeLevel(cn);
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if (this.config.useCookies) this.updateCookie();
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};
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// Open or close all nodes
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dTree.prototype.oAll = function(status) {
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for (var n=0; n<this.aNodes.length; n++) {
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if (this.aNodes[n]._hc && this.aNodes[n].pid != this.root.id) {
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this.nodeStatus(status, n, this.aNodes[n]._ls);
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this.aNodes[n]._io = status;
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}
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}
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if (this.config.useCookies) this.updateCookie();
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};
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// Opens the tree to a specific node
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dTree.prototype.openTo = function(nId, bSelect, bFirst) {
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if (!bFirst) {
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for (var n=0; n<this.aNodes.length; n++) {
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if (this.aNodes[n].id == nId) {
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nId=n;
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break;
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}
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}
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}
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var cn=this.aNodes[nId];
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if (cn.pid==this.root.id || !cn._p) return;
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cn._io = true;
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cn._is = bSelect;
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if (this.completed && cn._hc) this.nodeStatus(true, cn._ai, cn._ls);
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if (this.completed && bSelect) this.s(cn._ai);
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else if (bSelect) this._sn=cn._ai;
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this.openTo(cn._p._ai, false, true);
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};
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// Closes all nodes on the same level as certain node
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dTree.prototype.closeLevel = function(node) {
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for (var n=0; n<this.aNodes.length; n++) {
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if (this.aNodes[n].pid == node.pid && this.aNodes[n].id != node.id && this.aNodes[n]._hc) {
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this.nodeStatus(false, n, this.aNodes[n]._ls);
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this.aNodes[n]._io = false;
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this.closeAllChildren(this.aNodes[n]);
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}
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}
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};
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// Closes all children of a node
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dTree.prototype.closeAllChildren = function(node) {
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for (var n=0; n<this.aNodes.length; n++) {
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if (this.aNodes[n].pid == node.id && this.aNodes[n]._hc) {
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if (this.aNodes[n]._io) this.nodeStatus(false, n, this.aNodes[n]._ls);
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this.aNodes[n]._io = false;
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this.closeAllChildren(this.aNodes[n]);
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}
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}
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};
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// Change the status of a node(open or closed)
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dTree.prototype.nodeStatus = function(status, id, bottom) {
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eDiv = document.getElementById('d' + this.obj + id);
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eJoin = document.getElementById('j' + this.obj + id);
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if (this.config.useIcons) {
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eIcon = document.getElementById('i' + this.obj + id);
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eIcon.src = (status) ? this.aNodes[id].iconOpen : this.aNodes[id].iconClose;
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}
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eJoin.src = (this.config.useLines)?
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((status)?((bottom)?this.icon.minusBottom:this.icon.minus):((bottom)?this.icon.plusBottom:this.icon.plus)):
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((status)?this.icon.nlMinus:this.icon.nlPlus);
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eDiv.style.display = (status) ? 'block': 'none';
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};
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// [Cookie] Clears a cookie
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dTree.prototype.clearCookie = function() {
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var now = new Date();
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var yesterday = new Date(now.getTime() - 1000 * 60 * 60 * 24);
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this.setCookie('co'+this.obj, 'cookieValue', yesterday);
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this.setCookie('cs'+this.obj, 'cookieValue', yesterday);
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};
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// [Cookie] Sets value in a cookie
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dTree.prototype.setCookie = function(cookieName, cookieValue, expires, path, domain, secure) {
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document.cookie =
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escape(cookieName) + '=' + escape(cookieValue)
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+ (expires ? '; expires=' + expires.toGMTString() : '')
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+ (path ? '; path=' + path : '')
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+ (domain ? '; domain=' + domain : '')
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+ (secure ? '; secure' : '');
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};
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// [Cookie] Gets a value from a cookie
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dTree.prototype.getCookie = function(cookieName) {
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var cookieValue = '';
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var posName = document.cookie.indexOf(escape(cookieName) + '=');
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if (posName != -1) {
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var posValue = posName + (escape(cookieName) + '=').length;
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var endPos = document.cookie.indexOf(';', posValue);
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if (endPos != -1) cookieValue = unescape(document.cookie.substring(posValue, endPos));
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else cookieValue = unescape(document.cookie.substring(posValue));
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}
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return (cookieValue);
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};
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// [Cookie] Returns ids of open nodes as a string
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dTree.prototype.updateCookie = function() {
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var str = '';
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for (var n=0; n<this.aNodes.length; n++) {
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if (this.aNodes[n]._io && this.aNodes[n].pid != this.root.id) {
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if (str) str += '.';
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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;
|
||
|
||
};
|
||
|
||
}; |