1/*--------------------------------------------------| 2| dTree 2.05 | www.destroydrop.com/javascript/tree/ | 3|---------------------------------------------------| 4| Copyright (c) 2002-2003 Geir Landrö | 5| | 6| This script can be used freely as long as all | 7| copyright messages are intact. | 8| | 9| Updated: 17.04.2003 | 10|--------------------------------------------------*/ 11 12// Node object 13function Node(id, pid, name, url, title, target, icon, iconOpen, open) { 14 this.id = id; 15 this.pid = pid; 16 this.name = name; 17 this.url = url; 18 this.title = title; 19 this.target = target; 20 this.icon = icon; 21 this.iconOpen = iconOpen; 22 this._io = open || false; 23 this._is = false; 24 this._ls = false; 25 this._hc = false; 26 this._ai = 0; 27 this._p; 28}; 29 30// Tree object 31function dTree(objName) { 32 this.config = { 33 target : null, 34 folderLinks : true, 35 useSelection : true, 36 useCookies : true, 37 useLines : true, 38 useIcons : true, 39 useStatusText : false, 40 closeSameLevel : false, 41 inOrder : false 42 } 43 this.icon = { 44 root : 'theme/Meteotoren/img/menu/base.png', 45 folder : 'theme/Meteotoren/img/menu/folder.png', 46 folderOpen : 'theme/Meteotoren/img/menu/folderopen.png', 47 node : 'theme/Meteotoren/img/menu/page.png', 48 empty : 'theme/Meteotoren/img/menu/empty.png', 49 line : 'theme/Meteotoren/img/menu/line.png', 50 join : 'theme/Meteotoren/img/menu/join.png', 51 joinBottom : 'theme/Meteotoren/img/menu/joinbottom.png', 52 plus : 'theme/Meteotoren/img/menu/plus.png', 53 plusBottom : 'theme/Meteotoren/img/menu/plusbottom.png', 54 minus : 'theme/Meteotoren/img/menu/minus.png', 55 minusBottom : 'theme/Meteotoren/img/menu/minusbottom.png', 56 nlPlus : 'theme/Meteotoren/img/menu/nolines_plus.png', 57 nlMinus : 'theme/Meteotoren/img/menu/nolines_minus.png' 58 }; 59 this.obj = objName; 60 this.aNodes = []; 61 this.aIndent = []; 62 this.root = new Node(-1); 63 this.selectedNode = null; 64 this.selectedFound = false; 65 this.completed = false; 66}; 67 68// Adds a new node to the node array 69dTree.prototype.add = function(id, pid, name, url, title, target, icon, iconOpen, open) { 70 this.aNodes[this.aNodes.length] = new Node(id, pid, name, url, title, target, icon, iconOpen, open); 71}; 72 73// Open/close all nodes 74dTree.prototype.openAll = function() { 75 this.oAll(true); 76}; 77dTree.prototype.closeAll = function() { 78 this.oAll(false); 79}; 80 81// Outputs the tree to the page 82dTree.prototype.toString = function() { 83 var str = '<div class="dtree">\n'; 84 if (document.getElementById) { 85 if (this.config.useCookies) this.selectedNode = this.getSelected(); 86 str += this.addNode(this.root); 87 } else str += 'Browser not supported.'; 88 str += '</div>'; 89 if (!this.selectedFound) this.selectedNode = null; 90 this.completed = true; 91 return str; 92}; 93 94// Creates the tree structure 95dTree.prototype.addNode = function(pNode) { 96 var str = ''; 97 var n=0; 98 if (this.config.inOrder) n = pNode._ai; 99 for (n; n<this.aNodes.length; n++) { 100 if (this.aNodes[n].pid == pNode.id) { 101 var cn = this.aNodes[n]; 102 cn._p = pNode; 103 cn._ai = n; 104 this.setCS(cn); 105 if (!cn.target && this.config.target) cn.target = this.config.target; 106 if (cn._hc && !cn._io && this.config.useCookies) cn._io = this.isOpen(cn.id); 107 if (!this.config.folderLinks && cn._hc) cn.url = null; 108 if (this.config.useSelection && cn.id == this.selectedNode && !this.selectedFound) { 109 cn._is = true; 110 this.selectedNode = n; 111 this.selectedFound = true; 112 } 113 str += this.node(cn, n); 114 if (cn._ls) break; 115 } 116 } 117 return str; 118}; 119 120// Creates the node icon, url and text 121dTree.prototype.node = function(node, nodeId) { 122 var str = '<div class="dTreeNode">' + this.indent(node, nodeId); 123 if (this.config.useIcons) { 124 if (!node.icon) node.icon = (this.root.id == node.pid) ? this.icon.root : ((node._hc) ? this.icon.folder : this.icon.node); 125 if (!node.iconOpen) node.iconOpen = (node._hc) ? this.icon.folderOpen : this.icon.node; 126 if (this.root.id == node.pid) { 127 node.icon = this.icon.root; 128 node.iconOpen = this.icon.root; 129 } 130 str += '<img id="i' + this.obj + nodeId + '" src="' + ((node._io) ? node.iconOpen : node.icon) + '" alt="" />'; 131 } 132 if (node.url) { 133 str += '<a id="s' + this.obj + nodeId + '" class="' + ((this.config.useSelection) ? ((node._is ? 'nodeSel' : 'node')) : 'node') + '" href="' + node.url + '"'; 134 if (node.title) str += ' title="' + node.title + '"'; 135 if (node.target) str += ' target="' + node.target + '"'; 136 if (this.config.useStatusText) str += ' onmouseover="window.status=\'' + node.name + '\';return true;" onmouseout="window.status=\'\';return true;" '; 137 if (this.config.useSelection && ((node._hc && this.config.folderLinks) || !node._hc)) 138 str += ' onclick="javascript: ' + this.obj + '.s(' + nodeId + ');"'; 139 str += '>'; 140 } 141 else if ((!this.config.folderLinks || !node.url) && node._hc && node.pid != this.root.id) 142 str += '<a href="javascript: ' + this.obj + '.o(' + nodeId + ');" class="node">'; 143 str += node.name; 144 if (node.url || ((!this.config.folderLinks || !node.url) && node._hc)) str += '</a>'; 145 str += '</div>'; 146 if (node._hc) { 147 str += '<div id="d' + this.obj + nodeId + '" class="clip" style="display:' + ((this.root.id == node.pid || node._io) ? 'block' : 'none') + ';">'; 148 str += this.addNode(node); 149 str += '</div>'; 150 } 151 this.aIndent.pop(); 152 return str; 153}; 154 155// Adds the empty and line icons 156dTree.prototype.indent = function(node, nodeId) { 157 var str = ''; 158 if (this.root.id != node.pid) { 159 for (var n=0; n<this.aIndent.length; n++) 160 str += '<img src="' + ( (this.aIndent[n] == 1 && this.config.useLines) ? this.icon.line : this.icon.empty ) + '" alt="" />'; 161 (node._ls) ? this.aIndent.push(0) : this.aIndent.push(1); 162 if (node._hc) { 163 str += '<a href="javascript: ' + this.obj + '.o(' + nodeId + ');"><img id="j' + this.obj + nodeId + '" src="'; 164 if (!this.config.useLines) str += (node._io) ? this.icon.nlMinus : this.icon.nlPlus; 165 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 ) ); 166 str += '" alt="" /></a>'; 167 } else str += '<img src="' + ( (this.config.useLines) ? ((node._ls) ? this.icon.joinBottom : this.icon.join ) : this.icon.empty) + '" alt="" />'; 168 } 169 return str; 170}; 171 172// Checks if a node has any children and if it is the last sibling 173dTree.prototype.setCS = function(node) { 174 var lastId; 175 for (var n=0; n<this.aNodes.length; n++) { 176 if (this.aNodes[n].pid == node.id) node._hc = true; 177 if (this.aNodes[n].pid == node.pid) lastId = this.aNodes[n].id; 178 } 179 if (lastId==node.id) node._ls = true; 180}; 181 182// Returns the selected node 183dTree.prototype.getSelected = function() {
184 var sn = this.getCookie('cs' + this.obj); 185 return (sn) ? sn : null; 186}; 187 188// Highlights the selected node 189dTree.prototype.s = function(id) { 190 if (!this.config.useSelection) return; 191 var cn = this.aNodes[id]; 192 if (cn._hc && !this.config.folderLinks) return; 193 if (this.selectedNode != id) { 194 if (this.selectedNode || this.selectedNode==0) { 195 eOld = document.getElementById("s" + this.obj + this.selectedNode); 196 eOld.className = "node"; 197 } 198 eNew = document.getElementById("s" + this.obj + id); 199 eNew.className = "nodeSel"; 200 this.selectedNode = id; 201 if (this.config.useCookies) this.setCookie('cs' + this.obj, cn.id); 202 } 203}; 204 205// Toggle Open or close 206dTree.prototype.o = function(id) { 207 var cn = this.aNodes[id]; 208 this.nodeStatus(!cn._io, id, cn._ls); 209 cn._io = !cn._io; 210 if (this.config.closeSameLevel) this.closeLevel(cn); 211 if (this.config.useCookies) this.updateCookie(); 212}; 213 214// Open or close all nodes 215dTree.prototype.oAll = function(status) { 216 for (var n=0; n<this.aNodes.length; n++) { 217 if (this.aNodes[n]._hc && this.aNodes[n].pid != this.root.id) { 218 this.nodeStatus(status, n, this.aNodes[n]._ls) 219 this.aNodes[n]._io = status; 220 } 221 } 222 if (this.config.useCookies) this.updateCookie(); 223}; 224 225// Opens the tree to a specific node 226dTree.prototype.openTo = function(nId, bSelect, bFirst) { 227 if (!bFirst) { 228 for (var n=0; n<this.aNodes.length; n++) { 229 if (this.aNodes[n].id == nId) { 230 nId=n; 231 break; 232 } 233 } 234 } 235 var cn=this.aNodes[nId]; 236 if (cn.pid==this.root.id || !cn._p) return; 237 cn._io = true; 238 cn._is = bSelect; 239 if (this.completed && cn._hc) this.nodeStatus(true, cn._ai, cn._ls); 240 if (this.completed && bSelect) this.s(cn._ai); 241 else if (bSelect) this._sn=cn._ai; 242 this.openTo(cn._p._ai, false, true); 243}; 244 245// Closes all nodes on the same level as certain node 246dTree.prototype.closeLevel = function(node) { 247 for (var n=0; n<this.aNodes.length; n++) { 248 if (this.aNodes[n].pid == node.pid && this.aNodes[n].id != node.id && this.aNodes[n]._hc) { 249 this.nodeStatus(false, n, this.aNodes[n]._ls); 250 this.aNodes[n]._io = false; 251 this.closeAllChildren(this.aNodes[n]); 252 } 253 } 254} 255 256// Closes all children of a node 257dTree.prototype.closeAllChildren = function(node) { 258 for (var n=0; n<this.aNodes.length; n++) { 259 if (this.aNodes[n].pid == node.id && this.aNodes[n]._hc) { 260 if (this.aNodes[n]._io) this.nodeStatus(false, n, this.aNodes[n]._ls); 261 this.aNodes[n]._io = false; 262 this.closeAllChildren(this.aNodes[n]); 263 } 264 } 265} 266 267// Change the status of a node(open or closed) 268dTree.prototype.nodeStatus = function(status, id, bottom) { 269 eDiv = document.getElementById('d' + this.obj + id); 270 eJoin = document.getElementById('j' + this.obj + id); 271 if (this.config.useIcons) { 272 eIcon = document.getElementById('i' + this.obj + id); 273 eIcon.src = (status) ? this.aNodes[id].iconOpen : this.aNodes[id].icon; 274 } 275 eJoin.src = (this.config.useLines)? 276 ((status)?((bottom)?this.icon.minusBottom:this.icon.minus):((bottom)?this.icon.plusBottom:this.icon.plus)): 277 ((status)?this.icon.nlMinus:this.icon.nlPlus); 278 eDiv.style.display = (status) ? 'block': 'none'; 279}; 280 281 282// [Cookie] Clears a cookie 283dTree.prototype.clearCookie = function() { 284 var now = new Date(); 285 var yesterday = new Date(now.getTime() - 1000 * 60 * 60 * 24); 286 this.setCookie('co'+this.obj, 'cookieValue', yesterday); 287 this.setCookie('cs'+this.obj, 'cookieValue', yesterday); 288}; 289 290// [Cookie] Sets value in a cookie 291dTree.prototype.setCookie = function(cookieName, cookieValue, expires, path, domain, secure) { 292 document.cookie = 293 escape(cookieName) + '=' + escape(cookieValue) 294 + (expires ? '; expires=' + expires.toGMTString() : '') 295 + (path ? '; path=' + path : '') 296 + (domain ? '; domain=' + domain : '') 297 + (secure ? '; secure' : ''); 298}; 299 300// [Cookie] Gets a value from a cookie 301dTree.prototype.getCookie = function(cookieName) { 302 var cookieValue = ''; 303 var posName = document.cookie.indexOf(escape(cookieName) + '='); 304 if (posName != -1) { 305 var posValue = posName + (escape(cookieName) + '=').length; 306 var endPos = document.cookie.indexOf(';', posValue); 307 if (endPos != -1) cookieValue = unescape(document.cookie.substring(posValue, endPos)); 308 else cookieValue = unescape(document.cookie.substring(posValue)); 309 } 310 return (cookieValue); 311}; 312
313// [Cookie] Returns ids of open nodes as a string 314dTree.prototype.updateCookie = function() { 315 var str = ''; 316 for (var n=0; n<this.aNodes.length; n++) { 317 if (this.aNodes[n]._io && this.aNodes[n].pid != this.root.id) { 318 if (str) str += '.'; 319 str += this.aNodes[n].id; 320 } 321 } 322 this.setCookie('co' + this.obj, str); 323}; 324 325// [Cookie] Checks if a node id is in a cookie 326dTree.prototype.isOpen = function(id) { 327 var aOpen = this.getCookie('co' + this.obj).split('.'); 328 for (var n=0; n<aOpen.length; n++) 329 if (aOpen[n] == id) return true; 330 return false; 331}; 332 333// If Push and pop is not implemented by the browser 334if (!Array.prototype.push) { 335 Array.prototype.push = function array_push() { 336 for(var i=0;i<arguments.length;i++) 337 this[this.length]=arguments[i]; 338 return this.length; 339 } 340}; 341if (!Array.prototype.pop) { 342 Array.prototype.pop = function array_pop() { 343 lastElement = this[this.length-1]; 344 this.length = Math.max(this.length-1,0); 345 return lastElement; 346 } 347};
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