432 lines
15 KiB
JavaScript
432 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 Landrö |
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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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/* The content of attribute values should be quoted properly by using the
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equivalent entities. */
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function dTreeQuote(str) {
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return str.escapeHTML();
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}
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// Node object
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function dTreeNode(id, pid, name, isParent, url, dataname, datatype, title, target,
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icon, iconOpen, open) {
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this.isParent = isParent;
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this.id = id;
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this.pid = pid;
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this.name = name;
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this.url = url;
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this.title = title;
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this.target = target;
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this.icon = icon;
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this.iconOpen = iconOpen;
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this.dataname = dataname;
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this.datatype = datatype;
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this._io = open || false;
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this._is = false;
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this._ls = false;
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this._hc = false;
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this._ai = 0;
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this._p;
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};
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// Tree object
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function dTree(objName) {
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this.obj = objName;
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this.config = {
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target: null,
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useCookies: false
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};
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this.icon = {
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root: 'img/base.gif',
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folder: 'img/folder.gif',
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folderOpen: 'img/folderopen.gif',
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node: 'img/page.gif',
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empty: 'img/empty.gif',
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line: 'img/line.gif',
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join: 'img/join.gif',
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joinBottom: 'img/joinbottom.gif',
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plus: 'img/plus.gif',
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plusBottom: 'img/plusbottom.gif',
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minus: 'img/minus.gif',
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minusBottom: 'img/minusbottom.gif',
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nlPlus: 'img/nolines_plus.gif',
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nlMinus: 'img/nolines_minus.gif'
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};
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this.images = {};
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this.objects = {};
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this.aNodes = [];
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this.aIndent = [];
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this.root = new dTreeNode(-1);
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this.selectedNode = null;
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this.selectedFound = false;
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this.completed = false;
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return this;
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};
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dTree.prototype = {
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obj: null,
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config: null,
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icon: null,
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aNodes: null,
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aIndent: null,
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root: null,
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selectedNode: null,
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selectedFound: false,
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completed: false,
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// Adds a new node to the node array
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add: function(id, pid, name, isParent, url, datatype,
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title, target, icon, iconOpen, open) {
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this.aNodes[this.aNodes.length] = new dTreeNode(id, pid, name, isParent, url,
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datatype, title, target, icon,
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iconOpen, open, false);
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},
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preload: function () {
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this.images['line'] = new Element ("img", {"src": this.icon.line});
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this.images['empty'] = new Element ("img", {"src": this.icon.empty});
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this.images['plus'] = new Element ("img", {"src": this.icon.plus});
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this.images['minus'] = new Element ("img", {"src": this.icon.minus});
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this.images['plusbottom'] = new Element ("img", {"src": this.icon.plusBottom});
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this.images['minusbottom'] = new Element ("img", {"src": this.icon.minusBottom});
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this.images['join'] = new Element ("img", {"src": this.icon.join});
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this.images['joinbottom'] = new Element ("img", {"src": this.icon.joinBottom});
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this.objects['link'] = new Element ("a", {"href": "#"});
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this.objects['nodelink'] = new Element ("a", {"href": "#", "class": "node"});
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this.objects['div'] = new Element ("div");
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this.objects['nodediv'] = new Element ("div", {"class": "dTreeNode"});
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this.objects['clipdiv'] = new Element ("div", {"class": "clip"});
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this.objects['namespan'] = new Element ("span", {"class": "nodeName"});
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this.objects['image'] = new Element ("img");
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},
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// Open/close all nodes
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openAll: function() {
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this.oAll(true);
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},
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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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domObject: function() {
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var div = this.objects["div"].cloneNode (true);
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div.id = this.obj;
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div.addClassName ("dtree");
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if (this.config.useCookies)
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this.selectedNode = this.getSelected();
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this.addNode (this.root, div);
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if (!this.selectedFound) this.selectedNode = null;
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this.completed = true;
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return div;
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},
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// Creates the tree structure
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addNode: function(pNode, container) {
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var n=0;
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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 (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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this.node(cn, n, container);
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if (cn._ls) break;
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}
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}
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},
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// Creates the node icon, url and text
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node: function(node, nodeId, container) {
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var rc;
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this.aNodes[nodeId] = node;
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if (this.root.id != node.pid) {
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var div = this.objects['nodediv'].cloneNode (true);
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if (node.datatype)
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div.writeAttribute ("datatype", dTreeQuote(node.datatype));
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if (node.dataname)
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div.writeAttribute ("dataname", dTreeQuote(node.dataname));
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this.indent (node, nodeId, div);
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var link = this.objects['nodelink'].cloneNode (true);
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link.id = 's' + this.obj + nodeId;
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link.href = dTreeQuote(node.url);
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if (node.title)
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link.writeAttribute ("title", dTreeQuote(node.title));
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if (node.target)
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link.writeAttribute ("target", dTreeQuote(node.target));
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link.observe ("click", this.s.bindAsEventListener(this, parseInt(nodeId)));
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if (!node.icon)
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node.icon = (this.root.id == node.pid) ?
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this.icon.root : ((node._hc) ? this.icon.folder : this.icon.node);
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if (!node.iconOpen)
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node.iconOpen = (node._hc) ?
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this.icon.folderOpen : this.icon.node;
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if (this.root.id == node.pid) {
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node.icon = this.icon.root;
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node.iconOpen = this.icon.root;
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}
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var img = this.objects['image'].cloneNode (true);
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img.id = 'i' + this.obj + nodeId;
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img.src = ((node._io) ? node.iconOpen : node.icon);
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var span = this.objects['namespan'].cloneNode (true);
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if (!node.isParent)
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span.addClassName ("leaf");
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span.update (node.name);
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link.appendChild (img);
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link.appendChild (span);
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div.appendChild (link);
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if (container)
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container.appendChild (div);
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else
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rc = div;
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}
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if (node._hc) {
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var div = this.objects['clipdiv'].cloneNode (true);
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div.id = 'd' + this.obj + nodeId;
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div.setStyle ({"display":
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((this.root.id == node.pid || node._io) ?
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'block' : 'none')});
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this.addNode(node, div);
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if (container)
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container.appendChild (div);
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}
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this.aIndent.pop();
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return rc;
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},
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// Adds the empty and line icons
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indent: function(node, nodeId, container) {
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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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var img = (this.aIndent[n] == 1) ?
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this.images['line'] : this.images['empty'];
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container.appendChild (img.cloneNode (true));
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}
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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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var link = this.objects['link'].cloneNode (true);
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link.id = 'tg' + this.obj + nodeId;
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link.observe ("click", this.o.bindAsEventListener(this, parseInt(nodeId)));
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var img;
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if (node._io)
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img = ((node._ls) ? this.images['minusbottom'] : this.images['minus']);
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else
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img = ((node._ls) ? this.images['plusbottom'] : this.images['plus']);
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img = img.cloneNode (true);
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img.id = 'j' + this.obj + nodeId;
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link.appendChild (img);
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container.appendChild (link);
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}
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else {
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var img = ((node._ls) ? this.images['joinbottom'] : this.images['join']);
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container.appendChild (img.cloneNode (true));
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}
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}
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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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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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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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s: function(id, withEvent) {
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if (withEvent)
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id = withEvent;
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var cn = this.aNodes[id];
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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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eOld.deselect();
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eOld.parentNode.removeClassName('_selected');
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}
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eNew = document.getElementById("s" + this.obj + id);
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eNew.selectElement();
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eNew.parentNode.addClassName('_selected');
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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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},
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// Toggle Open or close
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o: function(id, withEvent) {
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if (withEvent)
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id = withEvent;
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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.useCookies) this.updateCookie();
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return false;
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},
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// Open or close all nodes
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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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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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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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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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nodeStatus: function(status, id, bottom) {
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eDiv = document.getElementById('d' + this.obj + id);
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if (eDiv) {
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eJoin = $('j' + this.obj + id);
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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].icon;
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eJoin.src = ((status)?((bottom)?this.icon.minusBottom:this.icon.minus):((bottom)?this.icon.plusBottom:this.icon.plus));
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eDiv.style.display = (status) ? 'block': 'none';
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}
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},
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// [Cookie] Clears a cookie
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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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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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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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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;
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}
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}
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this.setCookie('co' + this.obj, str);
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},
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// [Cookie] Checks if a node id is in a cookie
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isOpen: function(id) {
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var aOpen = this.getCookie('co' + this.obj).split('.');
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for (var n=0; n<aOpen.length; n++)
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if (aOpen[n] == id) return true;
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return false;
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}
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};
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// If Push and pop is not implemented by the browser
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if (!Array.prototype.push) {
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Array.prototype.push = function array_push() {
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for(var i=0;i<arguments.length;i++)
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this[this.length]=arguments[i];
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return this.length;
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}
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};
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if (!Array.prototype.pop) {
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Array.prototype.pop = function array_pop() {
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lastElement = this[this.length-1];
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this.length = Math.max(this.length-1,0);
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return lastElement;
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}
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};
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