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/*----------------------------------------------------------------------------\| Cross Browser Tree Widget 1.12 ||-----------------------------------------------------------------------------|| Created by Emil A Eklund || (http://webfx.eae.net/contact.html#emil) || For WebFX (http://webfx.eae.net/) ||-----------------------------------------------------------------------------|| An object based tree widget, emulating the one found in microsoft windows, || with persistence using cookies. Works in IE 5+, Mozilla and konqueror 3. ||-----------------------------------------------------------------------------|| Copyright (c) 1999 - 2002 Emil A Eklund ||-----------------------------------------------------------------------------|| This software is provided "as is", without warranty of any kind, express or || implied, including but not limited to the warranties of merchantability, || fitness for a particular purpose and noninfringement. In no event shall the || authors or copyright holders be liable for any claim, damages or other || liability, whether in an action of contract, tort or otherwise, arising || from, out of or in connection with the software or the use or other || dealings in the software. || - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - || This software is available under the three different licenses mentioned || below. To use this software you must chose, and qualify, for one of those. || - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - || The WebFX Non-Commercial License http://webfx.eae.net/license.html || Permits anyone the right to use the software in a non-commercial context || free of charge. || - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - || The WebFX Commercial license http://webfx.eae.net/commercial.html || Permits the license holder the right to use the software in a commercial || context. Such license must be specifically obtained, however it's valid for || any number of implementations of the licensed software. || - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - || GPL - The GNU General Public License http://www.gnu.org/licenses/gpl.txt || Permits anyone the right to use and modify the software without limitations || as long as proper credits are given and the original and modified source || code are included. Requires that the final product, software derivate from || the original source or any software utilizing a GPL component, such as || this, is also licensed under the GPL license. ||-----------------------------------------------------------------------------|| 2001-01-10 | Original Version Posted. || 2001-03-18 | Added getSelected and get/setBehavior that can make it behave || | more like windows explorer, check usage for more information. || 2001-09-23 | Version 1.1 - New features included keyboard navigation (ie) || | and the ability to add and remove nodes dynamically and some || | other small tweaks and fixes. || 2002-01-27 | Version 1.11 - Bug fixes and improved mozilla support. || 2002-06-11 | Version 1.12 - Fixed a bug that prevented the indentation line || | from updating correctly under some circumstances. This bug || | happened when removing the last item in a subtree and items in || | siblings to the remove subtree where not correctly updated. || 2002-06-13 | Fixed a few minor bugs cased by the 1.12 bug-fix. ||-----------------------------------------------------------------------------|| Created 2000-12-11 | All changes are in the log above. | Updated 2002-06-11 |\----------------------------------------------------------------------------*/var webFXTreeConfig = {rootIcon : 'images/foldericon.png',openRootIcon : 'images/openfoldericon.png',folderIcon : 'images/foldericon.png',openFolderIcon : 'images/openfoldericon.png',fileIcon : 'images/file.png',iIcon : 'images/I.png',lIcon : 'images/L.png',lMinusIcon : 'images/Lminus.png',lPlusIcon : 'images/Lplus.png',tIcon : 'images/T.png',tMinusIcon : 'images/Tminus.png',tPlusIcon : 'images/Tplus.png',blankIcon : 'images/blank.png',defaultText : 'Tree Item',defaultAction : 'javascript:void(0);',defaultBehavior : 'classic'};var webFXTreeHandler = {idCounter : 0,idPrefix : "webfx-tree-object-",all : {},behavior : null,selected : null,onSelect : null, /* should be part of tree, not handler */getId : function() { return this.idPrefix + this.idCounter++; },toggle : function (oItem) { this.all[oItem.id.replace('-plus','')].toggle(); },select : function (oItem) { this.all[oItem.id.replace('-icon','')].select(); },focus : function (oItem) { this.all[oItem.id.replace('-anchor','')].focus(); },blur : function (oItem) { this.all[oItem.id.replace('-anchor','')].blur(); },keydown : function (oItem, e) { return this.all[oItem.id].keydown(e.keyCode); },cookies : new WebFXCookie(),insertHTMLBeforeEnd : function (oElement, sHTML) {if (oElement.insertAdjacentHTML != null) {oElement.insertAdjacentHTML("BeforeEnd", sHTML)return;}var df; // DocumentFragmentvar r = oElement.ownerDocument.createRange();r.selectNodeContents(oElement);r.collapse(false);df = r.createContextualFragment(sHTML);oElement.appendChild(df);}};/** WebFXCookie class*/function WebFXCookie() {if (document.cookie.length) { this.cookies = ' ' + document.cookie; }}WebFXCookie.prototype.setCookie = function (key, value) {document.cookie = key + "=" + escape(value);}WebFXCookie.prototype.getCookie = function (key) {if (this.cookies) {var start = this.cookies.indexOf(' ' + key + '=');if (start == -1) { return null; }var end = this.cookies.indexOf(";", start);if (end == -1) { end = this.cookies.length; }end -= start;var cookie = this.cookies.substr(start,end);return unescape(cookie.substr(cookie.indexOf('=') + 1, cookie.length - cookie.indexOf('=') + 1));}else { return null; }}/** WebFXTreeAbstractNode class*/function WebFXTreeAbstractNode(sText, sAction) {this.childNodes = [];this.id = webFXTreeHandler.getId();this.text = sText || webFXTreeConfig.defaultText;this.action = sAction || webFXTreeConfig.defaultAction;this._last = false;webFXTreeHandler.all[this.id] = this;}/** To speed thing up if you're adding multiple nodes at once (after load)* use the bNoIdent parameter to prevent automatic re-indentation and call* the obj.ident() method manually once all nodes has been added.*/WebFXTreeAbstractNode.prototype.add = function (node, bNoIdent) {node.parentNode = this;this.childNodes[this.childNodes.length] = node;var root = this;if (this.childNodes.length >=2) {this.childNodes[this.childNodes.length -2]._last = false;}while (root.parentNode) { root = root.parentNode; }if (root.rendered) {if (this.childNodes.length >= 2) {document.getElementById(this.childNodes[this.childNodes.length -2].id + '-plus').src = ((this.childNodes[this.childNodes.length -2].folder)?((this.childNodes[this.childNodes.length -2].open)?webFXTreeConfig.tMinusIcon:webFXTreeConfig.tPlusIcon):webFXTreeConfig.tIcon);if (this.childNodes[this.childNodes.length -2].folder) {this.childNodes[this.childNodes.length -2].plusIcon = webFXTreeConfig.tPlusIcon;this.childNodes[this.childNodes.length -2].minusIcon = webFXTreeConfig.tMinusIcon;}this.childNodes[this.childNodes.length -2]._last = false;}this._last = true;var foo = this;while (foo.parentNode) {for (var i = 0; i < foo.parentNode.childNodes.length; i++) {if (foo.id == foo.parentNode.childNodes[i].id) { break; }}if (++i == foo.parentNode.childNodes.length) { foo.parentNode._last = true; }else { foo.parentNode._last = false; }foo = foo.parentNode;}webFXTreeHandler.insertHTMLBeforeEnd(document.getElementById(this.id + '-cont'), node.toString());if ((!this.folder) && (!this.openIcon)) {this.icon = webFXTreeConfig.folderIcon;this.openIcon = webFXTreeConfig.openFolderIcon;}if (!this.folder) { this.folder = true; this.collapse(true); }if (!bNoIdent) { this.indent(); }}return node;}WebFXTreeAbstractNode.prototype.toggle = function() {if (this.folder) {if (this.open) { this.collapse(); }else { this.expand(); }} }WebFXTreeAbstractNode.prototype.select = function() {document.getElementById(this.id + '-anchor').focus();}WebFXTreeAbstractNode.prototype.deSelect = function() {document.getElementById(this.id + '-anchor').className = '';webFXTreeHandler.selected = null;}WebFXTreeAbstractNode.prototype.focus = function() {if ((webFXTreeHandler.selected) && (webFXTreeHandler.selected != this)) { webFXTreeHandler.selected.deSelect(); }webFXTreeHandler.selected = this;if ((this.openIcon) && (webFXTreeHandler.behavior != 'classic')) { document.getElementById(this.id + '-icon').src = this.openIcon; }document.getElementById(this.id + '-anchor').className = 'selected';document.getElementById(this.id + '-anchor').focus();if (webFXTreeHandler.onSelect) { webFXTreeHandler.onSelect(this); }}WebFXTreeAbstractNode.prototype.blur = function() {if ((this.openIcon) && (webFXTreeHandler.behavior != 'classic')) { document.getElementById(this.id + '-icon').src = this.icon; }document.getElementById(this.id + '-anchor').className = 'selected-inactive';}WebFXTreeAbstractNode.prototype.doExpand = function() {if (webFXTreeHandler.behavior == 'classic') { document.getElementById(this.id + '-icon').src = this.openIcon; }if (this.childNodes.length) { document.getElementById(this.id + '-cont').style.display = 'block'; }this.open = true;webFXTreeHandler.cookies.setCookie(this.id.substr(18,this.id.length - 18), '1');}WebFXTreeAbstractNode.prototype.doCollapse = function() {if (webFXTreeHandler.behavior == 'classic') { document.getElementById(this.id + '-icon').src = this.icon; }if (this.childNodes.length) { document.getElementById(this.id + '-cont').style.display = 'none'; }this.open = false;webFXTreeHandler.cookies.setCookie(this.id.substr(18,this.id.length - 18), '0');}WebFXTreeAbstractNode.prototype.expandAll = function() {this.expandChildren();if ((this.folder) && (!this.open)) { this.expand(); }}WebFXTreeAbstractNode.prototype.expandChildren = function() {for (var i = 0; i < this.childNodes.length; i++) {this.childNodes[i].expandAll();} }WebFXTreeAbstractNode.prototype.collapseAll = function() {this.collapseChildren();if ((this.folder) && (this.open)) { this.collapse(true); }}WebFXTreeAbstractNode.prototype.collapseChildren = function() {for (var i = 0; i < this.childNodes.length; i++) {this.childNodes[i].collapseAll();} }WebFXTreeAbstractNode.prototype.indent = function(lvl, del, last, level, nodesLeft) {/** Since we only want to modify items one level below ourself,* and since the rightmost indentation position is occupied by* the plus icon we set this to -2*/if (lvl == null) { lvl = -2; }var state = 0;for (var i = this.childNodes.length - 1; i >= 0 ; i--) {state = this.childNodes[i].indent(lvl + 1, del, last, level);if (state) { return; }}if (del) {if ((level >= this._level) && (document.getElementById(this.id + '-plus'))) {if (this.folder) {document.getElementById(this.id + '-plus').src = (this.open)?webFXTreeConfig.lMinusIcon:webFXTreeConfig.lPlusIcon;this.plusIcon = webFXTreeConfig.lPlusIcon;this.minusIcon = webFXTreeConfig.lMinusIcon;}else if (nodesLeft) { document.getElementById(this.id + '-plus').src = webFXTreeConfig.lIcon; }return 1;} }var foo = document.getElementById(this.id + '-indent-' + lvl);if (foo) {if ((foo._last) || ((del) && (last))) { foo.src = webFXTreeConfig.blankIcon; }else { foo.src = webFXTreeConfig.iIcon; }}return 0;}/** WebFXTree class*/function WebFXTree(sText, sAction, sBehavior, sIcon, sOpenIcon) {this.base = WebFXTreeAbstractNode;this.base(sText, sAction);this.icon = sIcon || webFXTreeConfig.rootIcon;this.openIcon = sOpenIcon || webFXTreeConfig.openRootIcon;/* Defaults to open */this.open = (webFXTreeHandler.cookies.getCookie(this.id.substr(18,this.id.length - 18)) == '0')?false:true;this.folder = true;this.rendered = false;this.onSelect = null;if (!webFXTreeHandler.behavior) { webFXTreeHandler.behavior = sBehavior || webFXTreeConfig.defaultBehavior; }}WebFXTree.prototype = new WebFXTreeAbstractNode;WebFXTree.prototype.setBehavior = function (sBehavior) {webFXTreeHandler.behavior = sBehavior;};WebFXTree.prototype.getBehavior = function (sBehavior) {return webFXTreeHandler.behavior;};WebFXTree.prototype.getSelected = function() {if (webFXTreeHandler.selected) { return webFXTreeHandler.selected; }else { return null; }}WebFXTree.prototype.remove = function() { }WebFXTree.prototype.expand = function() {this.doExpand();}WebFXTree.prototype.collapse = function(b) {if (!b) { this.focus(); }this.doCollapse();}WebFXTree.prototype.getFirst = function() {return null;}WebFXTree.prototype.getLast = function() {return null;}WebFXTree.prototype.getNextSibling = function() {return null;}WebFXTree.prototype.getPreviousSibling = function() {return null;}WebFXTree.prototype.keydown = function(key) {if (key == 39) {if (!this.open) { this.expand(); }else if (this.childNodes.length) { this.childNodes[0].select(); }return false;}if (key == 37) { this.collapse(); return false; }if ((key == 40) && (this.open) && (this.childNodes.length)) { this.childNodes[0].select(); return false; }return true;}WebFXTree.prototype.toString = function() {var str = "<div id=\"" + this.id + "\" ondblclick=\"webFXTreeHandler.toggle(this);\" class=\"webfx-tree-item\" onkeydown=\"return webFXTreeHandler.keydown(this, event)\">";str += "<img id=\"" + this.id + "-icon\" class=\"webfx-tree-icon\" src=\"" + ((webFXTreeHandler.behavior == 'classic' && this.open)?this.openIcon:this.icon) + "\" onclick=\"webFXTreeHandler.select(this);\"><a href=\"" + this.action + "\" id=\"" + this.id + "-anchor\" onfocus=\"webFXTreeHandler.focus(this);\" onblur=\"webFXTreeHandler.blur(this);\">" + this.text + "</a></div>";str += "<div id=\"" + this.id + "-cont\" class=\"webfx-tree-container\" style=\"display: " + ((this.open)?'block':'none') + ";\">";for (var i = 0; i < this.childNodes.length; i++) {str += this.childNodes[i].toString(i, this.childNodes.length);}str += "</div>";this.rendered = true;return str;};/** WebFXTreeItem class*/function WebFXTreeItem(sText, sAction, eParent, sIcon, sOpenIcon) {this.base = WebFXTreeAbstractNode;this.base(sText, sAction);/* Defaults to close */this.open = (webFXTreeHandler.cookies.getCookie(this.id.substr(18,this.id.length - 18)) == '1')?true:false;if (sIcon) { this.icon = sIcon; }if (sOpenIcon) { this.openIcon = sOpenIcon; }if (eParent) { eParent.add(this); }}WebFXTreeItem.prototype = new WebFXTreeAbstractNode;WebFXTreeItem.prototype.remove = function() {var iconSrc = document.getElementById(this.id + '-plus').src;var parentNode = this.parentNode;var prevSibling = this.getPreviousSibling(true);var nextSibling = this.getNextSibling(true);var folder = this.parentNode.folder;var last = ((nextSibling) && (nextSibling.parentNode) && (nextSibling.parentNode.id == parentNode.id))?false:true;this.getPreviousSibling().focus();this._remove();if (parentNode.childNodes.length == 0) {document.getElementById(parentNode.id + '-cont').style.display = 'none';parentNode.doCollapse();parentNode.folder = false;parentNode.open = false;}if (!nextSibling || last) { parentNode.indent(null, true, last, this._level, parentNode.childNodes.length); }if ((prevSibling == parentNode) && !(parentNode.childNodes.length)) {prevSibling.folder = false;prevSibling.open = false;iconSrc = document.getElementById(prevSibling.id + '-plus').src;iconSrc = iconSrc.replace('minus', '').replace('plus', '');document.getElementById(prevSibling.id + '-plus').src = iconSrc;document.getElementById(prevSibling.id + '-icon').src = webFXTreeConfig.fileIcon;}if (document.getElementById(prevSibling.id + '-plus')) {if (parentNode == prevSibling.parentNode) {iconSrc = iconSrc.replace('minus', '').replace('plus', '');document.getElementById(prevSibling.id + '-plus').src = iconSrc;} } }WebFXTreeItem.prototype._remove = function() {for (var i = this.childNodes.length - 1; i >= 0; i--) {this.childNodes[i]._remove();}for (var i = 0; i < this.parentNode.childNodes.length; i++) {if (this == this.parentNode.childNodes[i]) {for (var j = i; j < this.parentNode.childNodes.length; j++) {this.parentNode.childNodes[j] = this.parentNode.childNodes[j+1];}this.parentNode.childNodes.length -= 1;if (i + 1 == this.parentNode.childNodes.length) { this.parentNode._last = true; }break;} }webFXTreeHandler.all[this.id] = null;var tmp = document.getElementById(this.id);if (tmp) { tmp.parentNode.removeChild(tmp); }tmp = document.getElementById(this.id + '-cont');if (tmp) { tmp.parentNode.removeChild(tmp); }}WebFXTreeItem.prototype.expand = function() {this.doExpand();document.getElementById(this.id + '-plus').src = this.minusIcon;}WebFXTreeItem.prototype.collapse = function(b) {if (!b) { this.focus(); }this.doCollapse();document.getElementById(this.id + '-plus').src = this.plusIcon;}WebFXTreeItem.prototype.getFirst = function() {return this.childNodes[0];}WebFXTreeItem.prototype.getLast = function() {if (this.childNodes[this.childNodes.length - 1].open) { return this.childNodes[this.childNodes.length - 1].getLast(); }else { return this.childNodes[this.childNodes.length - 1]; }}WebFXTreeItem.prototype.getNextSibling = function() {for (var i = 0; i < this.parentNode.childNodes.length; i++) {if (this == this.parentNode.childNodes[i]) { break; }}if (++i == this.parentNode.childNodes.length) { return this.parentNode.getNextSibling(); }else { return this.parentNode.childNodes[i]; }}WebFXTreeItem.prototype.getPreviousSibling = function(b) {for (var i = 0; i < this.parentNode.childNodes.length; i++) {if (this == this.parentNode.childNodes[i]) { break; }}if (i == 0) { return this.parentNode; }else {if ((this.parentNode.childNodes[--i].open) || (b && this.parentNode.childNodes[i].folder)) { return this.parentNode.childNodes[i].getLast(); }else { return this.parentNode.childNodes[i]; }} }WebFXTreeItem.prototype.keydown = function(key) {if ((key == 39) && (this.folder)) {if (!this.open) { this.expand(); }else { this.getFirst().select(); }return false;}else if (key == 37) {if (this.open) { this.collapse(); }else { this.parentNode.select(); }return false;}else if (key == 40) {if (this.open) { this.getFirst().select(); }else {var sib = this.getNextSibling();if (sib) { sib.select(); }}return false;}else if (key == 38) { this.getPreviousSibling().select(); return false; }return true;}WebFXTreeItem.prototype.toString = function (nItem, nItemCount) {var foo = this.parentNode;var indent = '';if (nItem + 1 == nItemCount) { this.parentNode._last = true; }var i = 0;while (foo.parentNode) {foo = foo.parentNode;indent = "<img id=\"" + this.id + "-indent-" + i + "\" src=\"" + ((foo._last)?webFXTreeConfig.blankIcon:webFXTreeConfig.iIcon) + "\">" + indent;i++;}this._level = i;if (this.childNodes.length) { this.folder = 1; }else { this.open = false; }if ((this.folder) || (webFXTreeHandler.behavior != 'classic')) {if (!this.icon) { this.icon = webFXTreeConfig.folderIcon; }if (!this.openIcon) { this.openIcon = webFXTreeConfig.openFolderIcon; }}else if (!this.icon) { this.icon = webFXTreeConfig.fileIcon; }var label = this.text.replace(/</g, '<').replace(/>/g, '>');var str = "<div id=\"" + this.id + "\" ondblclick=\"webFXTreeHandler.toggle(this);\" class=\"webfx-tree-item\" onkeydown=\"return webFXTreeHandler.keydown(this, event)\">";str += indent;str += "<img id=\"" + this.id + "-plus\" src=\"" + ((this.folder)?((this.open)?((this.parentNode._last)?webFXTreeConfig.lMinusIcon:webFXTreeConfig.tMinusIcon):((this.parentNode._last)?webFXTreeConfig.lPlusIcon:webFXTreeConfig.tPlusIcon)):((this.parentNode._last)?webFXTreeConfig.lIcon:webFXTreeConfig.tIcon)) + "\" onclick=\"webFXTreeHandler.toggle(this);\">"str += "<img id=\"" + this.id + "-icon\" class=\"webfx-tree-icon\" src=\"" + ((webFXTreeHandler.behavior == 'classic' && this.open)?this.openIcon:this.icon) + "\" onclick=\"webFXTreeHandler.select(this);\"><a href=\"" + this.action + "\" id=\"" + this.id + "-anchor\" onfocus=\"webFXTreeHandler.focus(this);\" onblur=\"webFXTreeHandler.blur(this);\">" + label + "</a></div>";str += "<div id=\"" + this.id + "-cont\" class=\"webfx-tree-container\" style=\"display: " + ((this.open)?'block':'none') + ";\">";for (var i = 0; i < this.childNodes.length; i++) {str += this.childNodes[i].toString(i,this.childNodes.length);}str += "</div>";this.plusIcon = ((this.parentNode._last)?webFXTreeConfig.lPlusIcon:webFXTreeConfig.tPlusIcon);this.minusIcon = ((this.parentNode._last)?webFXTreeConfig.lMinusIcon:webFXTreeConfig.tMinusIcon);return str;}