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   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
  13  function 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
  31  function 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                : '/images/dtree/base.gif',
  45          folder            : '/images/dtree/folder.gif',
  46          folderOpen    : '/images/dtree/folderopen.gif',
  47          node                : '/images/dtree/page.gif',
  48          empty                : '/images/dtree/empty.gif',
  49          line                : '/images/dtree/line.gif',
  50          join                : '/images/dtree/join.gif',
  51          joinBottom    : '/images/dtree/joinbottom.gif',
  52          plus                : '/images/dtree/plus.gif',
  53          plusBottom    : '/images/dtree/plusbottom.gif',
  54          minus                : '/images/dtree/minus.gif',
  55          minusBottom    : '/images/dtree/minusbottom.gif',
  56          nlPlus            : '/images/dtree/nolines_plus.gif',
  57          nlMinus            : '/images/dtree/nolines_minus.gif'
  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
  69  dTree.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
  74  dTree.prototype.openAll = function() {
  75      this.oAll(true);
  76  };
  77  dTree.prototype.closeAll = function() {
  78      this.oAll(false);
  79  };
  80  
  81  // Outputs the tree to the page
  82  dTree.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
  95  dTree.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
 121  dTree.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
 156  dTree.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
 173  dTree.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
 183  dTree.prototype.getSelected = function() {
 184      var sn = this.getCookie('cs' + this.obj);
 185      return (sn) ? sn : null;
 186  };
 187  
 188  // Highlights the selected node
 189  dTree.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
 206  dTree.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
 215  dTree.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
 226  dTree.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
 246  dTree.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
 257  dTree.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)
 268  dTree.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
 283  dTree.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
 291  dTree.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
 301  dTree.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
 314  dTree.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
 326  dTree.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
 334  if (!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  };
 341  if (!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  };


Generated: Wed Dec 19 21:21:33 2007 Cross-referenced by PHPXref 0.7