/*----------------------------------------\
| Cross Browser Tree Widget 1.1 |
|-----------------------------------------|
| Created by Emil A. Eklund ([email protected]) |
| For WebFX (http://webfx.eae.net/) |
|-----------------------------------------|
| This script is provided as is without |
| any warranty whatsoever. It may be used |
| free of charge for non commerical sites |
| For commerical use contact the author |
| of this script for further details. |
|-----------------------------------------|
| Created 2000-12-11 | Updated 2001-09-06 |
\----------------------------------------*/
var webFXTreeConfig = {
rootIcon : 'media/images/Class.gif',
openRootIcon : 'media/images/Class.gif',
folderIcon : 'media/images/Class.gif',
openFolderIcon : 'media/images/Class.gif',
fileIcon : 'media/images/Class.gif',
iIcon : 'media/images/I.png',
lIcon : 'media/images/L.png',
lMinusIcon : 'media/images/Lminus.png',
lPlusIcon : 'media/images/Lplus.png',
tIcon : 'media/images/T.png',
tMinusIcon : 'media/images/Tminus.png',
tPlusIcon : 'media/images/Tplus.png',
blankIcon : 'media/images/blank.png',
defaultText : 'Tree Item',
defaultAction : 'javascript:void(0);',
defaultTarget : 'right',
defaultBehavior : 'classic'
};
var webFXTreeHandler = {
idCounter : 0,
idPrefix : "webfx-tree-object-",
all : {},
behavior : null,
selected : null,
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) { return this.all[oItem.id].keydown(window.event.keyCode); },
cookies : new WebFXCookie()
};
/*
* 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, sTarget) {
this.childNodes = [];
this.id = webFXTreeHandler.getId();
this.text = sText || webFXTreeConfig.defaultText;
this.action = sAction || webFXTreeConfig.defaultAction;
this.targetWindow = sTarget || webFXTreeConfig.defaultTarget;
this._last = false;
webFXTreeHandler.all[this.id] = this;
}
WebFXTreeAbstractNode.prototype.add = function (node) {
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)?webFXTreeConfig.tMinusIcon: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;
}
document.getElementById(this.id + '-cont').insertAdjacentHTML("beforeEnd", node.toString());
if ((!this.folder) && (!this.openIcon)) {
this.icon = webFXTreeConfig.folderIcon;
this.openIcon = webFXTreeConfig.openFolderIcon;
}
this.folder = true;
this.indent();
this.expand();
}
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.focus = function() {
webFXTreeHandler.selected = this;
if ((this.openIcon) && (webFXTreeHandler.behavior != 'classic')) { document.getElementById(this.id + '-icon').src = this.openIcon; }
document.getElementById(this.id + '-anchor').style.backgroundColor = 'highlight';
document.getElementById(this.id + '-anchor').style.color = 'highlighttext';
document.getElementById(this.id + '-anchor').focus();
}
WebFXTreeAbstractNode.prototype.blur = function() {
if ((this.openIcon) && (webFXTreeHandler.behavior != 'classic')) { document.getElementById(this.id + '-icon').src = this.icon; }
document.getElementById(this.id + '-anchor').style.backgroundColor = 'transparent';
document.getElementById(this.id + '-anchor').style.color = 'menutext';
}
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() {
if ((this.folder) && (this.open)) { this.collapse(); }
this.collapseChildren();
}
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) {
/*
* 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) {
if (this.folder) {
document.getElementById(this.id + '-plus').src = (this.open)?webFXTreeConfig.lMinusIcon:webFXTreeConfig.lPlusIcon;
this.plusIcon = webFXTreeConfig.lPlusIcon;
this.minusIcon = webFXTreeConfig.lMinusIcon;
}
else { document.getElementById(this.id + '-plus').src = webFXTreeConfig.lIcon; }
return 1;
}
}
var foo = document.getElementById(this.id + '-indent-' + lvl);
if (foo) {
if ((del) && (last)) { foo._last = true; }
if (foo._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;
if (!webFXTreeHandler.behavior) { webFXTreeHandler.behavior = sBehavior || webFXTreeConfig.defaultBehavior; }
this.targetWindow = 'right';
}
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() {
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) { this.expand(); return false; }
if (key == 37) { this.collapse(); return false; }
if ((key == 40) && (this.open)) { 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)\">";
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\" target=\"" + this.targetWindow + "\" 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 (eParent) { eParent.add(this); }
if (sIcon) { this.icon = sIcon; }
if (sOpenIcon) { this.openIcon = sOpenIcon; }
}
WebFXTreeItem.prototype = new WebFXTreeAbstractNode;
WebFXTreeItem.prototype.remove = function() {
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) {
parentNode.folder = false;
parentNode.open = false;
}
if (last) {
if (parentNode.id == prevSibling.id) {
document.getElementById(parentNode.id + '-icon').src = webFXTreeConfig.fileIcon;
}
else { }
}
if ((!prevSibling.parentNode) || (prevSibling.parentNode != parentNode)) {
parentNode.indent(null, true, last, this._level);
}
if (document.getElementById(prevSibling.id + '-plus')) {
if (nextSibling) {
if ((parentNode == prevSibling) && (parentNode.getNextSibling)) { document.getElementById(prevSibling.id + '-plus').src = webFXTreeConfig.tIcon; }
else if (nextSibling.parentNode != prevSibling) { document.getElementById(prevSibling.id + '-plus').src = webFXTreeConfig.lIcon; }
}
else { document.getElementById(prevSibling.id + '-plus').src = webFXTreeConfig.lIcon; }
}
}
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.id == this.parentNode.childNodes[i].id) {
for (var j = i; j < this.parentNode.childNodes.length; j++) {
this.parentNode.childNodes[i] = this.parentNode.childNodes[i+1]
}
this.parentNode.childNodes.length = this.parentNode.childNodes.length - 1;
if (i + 1 == this.parentNode.childNodes.length) { this.parentNode._last = true; }
}
}
webFXTreeHandler.all[this.id] = null;
if (document.getElementById(this.id)) {
document.getElementById(this.id).innerHTML = "";
document.getElementById(this.id).removeNode();
}
}
WebFXTreeItem.prototype.expand = function() {
this.doExpand();
document.getElementById(this.id + '-plus').src = this.minusIcon;
}
WebFXTreeItem.prototype.collapse = function() {
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(); return false; }
else { this.getFirst().select(); return false; }
}
else if (key == 37) {
if (this.open) { this.collapse(); return false; }
else { this.parentNode.select(); return false; }
}
else if (key == 40) {
if (this.open) { this.getFirst().select(); return false; }
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;
label = label.replace('<', '<');
label = label.replace('>', '>');
var str = "<div id=\"" + this.id + "\" ondblclick=\"webFXTreeHandler.toggle(this);\" class=\"webfx-tree-item\" onkeydown=\"return webFXTreeHandler.keydown(this)\">";
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\" src=\"" + ((webFXTreeHandler.behavior == 'classic' && this.open)?this.openIcon:this.icon) + "\" onclick=\"webFXTreeHandler.select(this);\"><a href=\"" + this.action + "\" id=\"" + this.id + "-anchor\" target=\"" + this.targetWindow + "\" 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;
}