221 lines
6.3 KiB
JavaScript
221 lines
6.3 KiB
JavaScript
/**************************************************************************
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Copyright (c) 2001 Geir Landrö (drop@destroydrop.com)
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JavaScript Tree - www.destroydrop.com/hugi/javascript/tree/
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Version 0.96
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This script can be used freely as long as all copyright messages are
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intact.
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**************************************************************************/
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// Arrays for nodes and icons
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var nodes = new Array();;
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var openNodes = new Array();
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var icons = new Array(6);
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// Loads all icons that are used in the tree
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function preloadIcons()
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{
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icons[0] = new Image();
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icons[0].src = "img/plus.gif";
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icons[1] = new Image();
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icons[1].src = "img/plusbottom.gif";
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icons[2] = new Image();
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icons[2].src = "img/minus.gif";
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icons[3] = new Image();
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icons[3].src = "img/minusbottom.gif";
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icons[4] = new Image();
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icons[4].src = "img/folder.gif";
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icons[5] = new Image();
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icons[5].src = "img/folderopen.gif";
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}
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// Create the tree
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function createTree(arrName, startNode, openNode)
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{
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nodes = arrName;
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if (nodes.length > 0)
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{
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preloadIcons();
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if (startNode == null) startNode = 0;
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if (openNode != 0 || openNode != null) setOpenNodes(openNode);
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if (startNode !=0)
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{
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var nodeValues = nodes[getArrayId(startNode)].split("|");
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document.write("<a href=\"" + nodeValues[3] + "\" onmouseover=\"window.status='" + nodeValues[2] + "';return true;\" onmouseout=\"window.status=' ';return true;\"><img src=\"img/folderopen.gif\" align=\"absbottom\" alt=\"\" />" + nodeValues[2] + "</a><br />");
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}
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else
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document.write("<img src=\"img/base.gif\" align=\"absbottom\" alt=\"\" />Skins<br />");
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var recursedNodes = new Array();
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addNode(startNode, recursedNodes);
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}
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}
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// Returns the position of a node in the array
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function getArrayId(node)
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{
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for (i=0; i<nodes.length; i++)
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{
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var nodeValues = nodes[i].split("|");
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if (nodeValues[0]==node) return i;
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}
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}
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// Puts in array nodes that will be open
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function setOpenNodes(openNode)
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{
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for (i=0; i<nodes.length; i++)
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{
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var nodeValues = nodes[i].split("|");
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if (nodeValues[0]==openNode)
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{
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openNodes.push(nodeValues[0]);
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setOpenNodes(nodeValues[1]);
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}
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}
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}
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// Checks if a node is open
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function isNodeOpen(node)
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{
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for (i=0; i<openNodes.length; i++)
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if (openNodes[i]==node) return true;
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return false;
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}
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// Checks if a node has any children
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function hasChildNode(parentNode)
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{
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for (i=0; i< nodes.length; i++)
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{
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var nodeValues = nodes[i].split("|");
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if (nodeValues[1] == parentNode) return true;
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}
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return false;
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}
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// Checks if a node is the last sibling
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function lastSibling (node, parentNode)
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{
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var lastChild = 0;
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for (i=0; i< nodes.length; i++)
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{
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var nodeValues = nodes[i].split("|");
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if (nodeValues[1] == parentNode)
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lastChild = nodeValues[0];
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}
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if (lastChild==node) return true;
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return false;
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}
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// Adds a new node in the tree
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function addNode(parentNode, recursedNodes)
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{
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for (var i = 0; i < nodes.length; i++)
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{
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var nodeValues = nodes[i].split("|");
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if (nodeValues[1] == parentNode)
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{
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var ls = lastSibling(nodeValues[0], nodeValues[1]);
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var hcn = hasChildNode(nodeValues[0]);
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var ino = isNodeOpen(nodeValues[0]);
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// Write out line & empty icons
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for (g=0; g<recursedNodes.length; g++)
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{
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if (recursedNodes[g] == 1) document.write("<img src=\"img/line.gif\" align=\"absbottom\" alt=\"\" />");
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else document.write("<img src=\"img/empty.gif\" align=\"absbottom\" alt=\"\" />");
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}
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// put in array line & empty icons
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if (ls) recursedNodes.push(0);
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else recursedNodes.push(1);
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// Write out join icons
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if (hcn) {
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if (ls) {
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document.write("<a href=\"javascript: oc(" + nodeValues[0] + ", 1);\"><img id=\"join" + nodeValues[0] + "\" src=\"img/");
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if (ino) document.write("minus");
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else document.write("plus");
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document.write("bottom.gif\" align=\"absbottom\" alt=\"Open/Close node\" /></a>");
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} else {
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document.write("<a href=\"javascript: oc(" + nodeValues[0] + ", 0);\"><img id=\"join" + nodeValues[0] + "\" src=\"img/");
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if (ino) document.write("minus");
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else document.write("plus");
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document.write(".gif\" align=\"absbottom\" alt=\"Open/Close node\" /></a>");
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}
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} else {
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if (ls) document.write("<img src=\"img/join.gif\" align=\"absbottom\" alt=\"\" />");
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else document.write("<img src=\"img/joinbottom.gif\" align=\"absbottom\" alt=\"\" />");
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}
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// Start link
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document.write("<a href=\"" + nodeValues[3] + "\" onmouseover=\"window.status='" + nodeValues[2] + "';return true;\" onmouseout=\"window.status=' ';return true;\">");
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// Write out folder & page icons
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if (hcn) {
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document.write("<img id=\"icon" + nodeValues[0] + "\" src=\"img/folder")
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if (ino) document.write("open");
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document.write(".gif\" align=\"absbottom\" alt=\"Folder\" />");
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} else document.write("<img id=\"icon" + nodeValues[0] + "\" src=\"img/page.gif\" align=\"absbottom\" alt=\"Page\" />");
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// Write out node name
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document.write(nodeValues[2]);
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// End link
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document.write("</a><br />");
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// If node has children write out divs and go deeper
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if (hcn) {
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document.write("<div id=\"div" + nodeValues[0] + "\"");
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if (!ino) document.write(" style=\"display: none;\"");
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document.write(">");
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addNode(nodeValues[0], recursedNodes);
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document.write("</div>");
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}
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// remove last line or empty icon
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recursedNodes.pop();
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}
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}
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}
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// Opens or closes a node
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function oc(node, bottom) {
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var theDiv = document.getElementById("div" + node);
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var theJoin = document.getElementById("join" + node);
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var theIcon = document.getElementById("icon" + node);
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if (theDiv.style.display == 'none') {
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if (bottom==1) theJoin.src = icons[3].src;
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else theJoin.src = icons[2].src;
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theIcon.src = icons[5].src;
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theDiv.style.display = '';
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} else {
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if (bottom==1) theJoin.src = icons[1].src;
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else theJoin.src = icons[0].src;
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theIcon.src = icons[4].src;
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theDiv.style.display = 'none';
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}
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}
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// Push and pop not implemented in IE(crap! don´t know about NS though)
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if(!Array.prototype.push)
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{
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function array_push()
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{
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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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Array.prototype.push = array_push;
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}
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if(!Array.prototype.pop)
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{
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function array_pop()
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{
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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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d
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}
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Array.prototype.pop = array_pop;
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}
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