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// +-----------------------------------------------------------------------+
// | Copyright (c) 2002-2003, Richard Heyes, Harald Radi |
// | All rights reserved. |
// | |
// | Redistribution and use in source and binary forms, with or without |
// | modification, are permitted provided that the following conditions |
// | are met: |
// | |
// | o Redistributions of source code must retain the above copyright |
// | notice, this list of conditions and the following disclaimer. |
// | o Redistributions in binary form must reproduce the above copyright |
// | notice, this list of conditions and the following disclaimer in the |
// | documentation and/or other materials provided with the distribution.|
// | o The names of the authors may not be used to endorse or promote |
// | products derived from this software without specific prior written |
// | permission. |
// | |
// | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
// | "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
// | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
// | A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
// | OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
// | SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
// | LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
// | DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
// | THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
// | (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
// | OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
// | |
// +-----------------------------------------------------------------------+
// | Author: Richard Heyes <richard@phpguru.org> |
// | Harald Radi <harald.radi@nme.at> |
// +-----------------------------------------------------------------------+
//
// $Id$
/**
* Function to create copies of objects which are
* normally passed around by references (Arrays for example)
*/
function arrayCopy(input)
{
var output = new Array(input.length);
for (i in input) {
if (typeof(input[i]) == 'array') {
output[i] = arrayCopy(input[i]);
} else {
output[i] = input[i];
}
}
return output;
}
/**
* TreeMenu class
*/
function TreeMenu(iconpath, myname, linkTarget, defaultClass, usePersistence, noTopLevelImages)
{
// Properties
this.iconpath = iconpath;
this.myname = myname;
this.linkTarget = linkTarget;
this.defaultClass = defaultClass;
this.usePersistence = usePersistence;
this.noTopLevelImages = noTopLevelImages;
this.n = new Array();
this.output = '';
this.nodeRefs = new Array();
this.branches = new Array();
this.branchStatus = new Array();
this.layerRelations = new Array();
this.childParents = new Array();
this.cookieStatuses = new Array();
this.preloadImages();
}
/**
* Adds a node to the tree
*/
TreeMenu.prototype.addItem = function (newNode)
{
newIndex = this.n.length;
this.n[newIndex] = newNode;
return this.n[newIndex];
}
/**
* Preload images hack for Mozilla
*/
TreeMenu.prototype.preloadImages = function ()
{
var plustop = new Image; plustop.src = this.iconpath + '/plustop.gif';
var plusbottom = new Image; plusbottom.src = this.iconpath + '/plusbottom.gif';
var plus = new Image; plus.src = this.iconpath + '/plus.gif';
var minustop = new Image; minustop.src = this.iconpath + '/minustop.gif';
var minusbottom = new Image; minusbottom.src = this.iconpath + '/minusbottom.gif';
var minus = new Image; minus.src = this.iconpath + '/minus.gif';
var branchtop = new Image; branchtop.src = this.iconpath + '/branchtop.gif';
var branchbottom = new Image; branchbottom.src = this.iconpath + '/branchbottom.gif';
var branch = new Image; branch.src = this.iconpath + '/branch.gif';
var linebottom = new Image; linebottom.src = this.iconpath + '/linebottom.gif';
var line = new Image; line.src = this.iconpath + '/line.gif';
}
/**
* Main function that draws the menu and assigns it
* to the layer (or document.write()s it)
*/
TreeMenu.prototype.drawMenu = function ()// OPTIONAL ARGS: nodes = [], level = [], prepend = '', expanded = false, visbility = 'inline', parentLayerID = null
{
/**
* Necessary variables
*/
var output = '';
var modifier = '';
var layerID = '';
var parentLayerID = '';
/**
* Parse any optional arguments
*/
var nodes = arguments[0] ? arguments[0] : this.n
var level = arguments[1] ? arguments[1] : [];
var prepend = arguments[2] ? arguments[2] : '';
var expanded = arguments[3] ? arguments[3] : false;
var visibility = arguments[4] ? arguments[4] : 'inline';
var parentLayerID = arguments[5] ? arguments[5] : null;
var currentlevel = level.length;
for (var i=0; i<nodes.length; i++) {
level[currentlevel] = i+1;
layerID = this.myname + '_' + 'node_' + this.implode('_', level);
/**
* Store this object in the nodeRefs array
*/
this.nodeRefs[layerID] = nodes[i];
/**
* Store the child/parent relationship
*/
this.childParents[layerID] = parentLayerID;
/**
* Gif modifier
*/
if (i == 0 && parentLayerID == null) {
modifier = nodes.length > 1 ? "top" : 'single';
} else if(i == (nodes.length-1)) {
modifier = "bottom";
} else {
modifier = "";
}
/**
* Single root branch is always expanded
*/
if (!this.doesMenu() || (parentLayerID == null && (nodes.length == 1 || this.noTopLevelImages))) {
expanded = true;
} else if (nodes[i].expanded) {
expanded = true;
} else {
expanded = false;
}
/**
* Make sure visibility is correct based on parent status
*/
visibility = this.checkParentVisibility(layerID) ? visibility : 'none';
/**
* Setup branch status and build an indexed array
* of branch layer ids
*/
if (nodes[i].n.length > 0) {
this.branchStatus[layerID] = expanded;
this.branches[this.branches.length] = layerID;
}
/**
* Setup toggle relationship
*/
if (!this.layerRelations[parentLayerID]) {
this.layerRelations[parentLayerID] = new Array();
}
this.layerRelations[parentLayerID][this.layerRelations[parentLayerID].length] = layerID;
/**
* Branch images
*/
var gifname = nodes[i].n.length && this.doesMenu() && nodes[i].isDynamic ? (expanded ? 'minus' : 'plus') : 'branch';
var iconName = expanded && nodes[i].expandedIcon ? nodes[i].expandedIcon : nodes[i].icon;
var iconimg = nodes[i].icon ? this.stringFormat('<img src="{0}/{1}" width="20" height="20" align="top" id="icon_{2}">', this.iconpath, iconName, layerID) : '';
/**
* Add event handlers
*/
var eventHandlers = "";
for (j in nodes[i].events) {
eventHandlers += this.stringFormat('{0}="{1}" ', j, nodes[i].events[j]);
}
/**
* Build the html to write to the document
* IMPORTANT:
* document.write()ing the string: '<div style="display:...' will screw up nn4.x
*/
var layerTag = this.doesMenu() ? this.stringFormat('<div id="{0}" style="display: {1}" class="{2}">', layerID, visibility, (nodes[i].cssClass ? nodes[i].cssClass : this.defaultClass)) : this.stringFormat('<div class="{0}">', nodes[i].cssClass ? nodes[i].cssClass : this.defaultClass);
var onMDown = this.doesMenu() && nodes[i].n.length && nodes[i].isDynamic ? this.stringFormat('onmousedown="{0}.toggleBranch(\'{1}\', true)" style="cursor: pointer; cursor: hand"', this.myname, layerID) : '';
var imgTag = this.stringFormat('<img src="{0}/{1}{2}.gif" width="20" height="20" align="top" border="0" name="img_{3}" {4}>', this.iconpath, gifname, modifier, layerID, onMDown);
var linkTarget= nodes[i].linkTarget ? nodes[i].linkTarget : this.linkTarget;
var linkStart = nodes[i].link ? this.stringFormat('<a href="{0}" target="{1}">', nodes[i].link, linkTarget) : '';
var delLink = nodes[i].link.replace('add_node','delete_node');
var editLink = nodes[i].link.replace('add_node','edit_node');
var linkEnd = nodes[i].link ? '</a>' +
'&nbsp;&nbsp;<a href="' + editLink + '" style="text-decoration:none;">' +
'<span style="font-size:70%; font-family: sans-serif;">(' + editLabel + ')</span></a>' +
'&nbsp;&nbsp;<a href="' + delLink + 'process=1" style="text-decoration:none;">' +
'<span style="color:red; font-size:70%; font-family: sans-serif;">(' + deleteLabel + ')</span></a>'
: '';
this.output += this.stringFormat('{0}<nobr>{1}{2}{3}{4}<span {5}>{6}</span>{7}</nobr><br /></div>',
layerTag,
prepend,
parentLayerID == null && (nodes.length == 1 || this.noTopLevelImages) ? '' : imgTag,
iconimg,
linkStart,
eventHandlers,
nodes[i].title,
linkEnd);
/**
* Traverse sub nodes ?
*/
if (nodes[i].n.length) {
/**
* Determine what to prepend. If there is only one root
* node then the prepend to pass to children is nothing.
* Otherwise it depends on where we are in the tree.
*/
if (parentLayerID == null && (nodes.length == 1 || this.noTopLevelImages)) {
var newPrepend = '';
} else if (i < (nodes.length - 1)) {
var newPrepend = prepend + this.stringFormat('<img src="{0}/line.gif" width="20" height="20" align="top">', this.iconpath);
} else {
var newPrepend = prepend + this.stringFormat('<img src="{0}/linebottom.gif" width="20" height="20" align="top">', this.iconpath);
}
this.drawMenu(nodes[i].n,
arrayCopy(level),
newPrepend,
nodes[i].expanded,
expanded ? 'inline' : 'none',
layerID);
}
}
}
/**
* Writes the output generated by drawMenu() to the page
*/
TreeMenu.prototype.writeOutput = function ()
{
document.write(this.output);
}
/**
* Toggles a branches visible status. Called from resetBranches()
* and also when a +/- graphic is clicked.
*/
TreeMenu.prototype.toggleBranch = function (layerID, updateStatus) // OPTIONAL ARGS: fireEvents = true
{
var currentDisplay = this.getLayer(layerID).style.display;
var newDisplay = (this.branchStatus[layerID] && currentDisplay == 'inline') ? 'none' : 'inline';
var fireEvents = arguments[2] != null ? arguments[2] : true;
for (var i=0; i<this.layerRelations[layerID].length; i++) {
if (this.branchStatus[this.layerRelations[layerID][i]]) {
this.toggleBranch(this.layerRelations[layerID][i], false);
}
this.getLayer(this.layerRelations[layerID][i]).style.display = newDisplay;
}
if (updateStatus) {
this.branchStatus[layerID] = !this.branchStatus[layerID];
/**
* Persistence
*/
if (this.doesPersistence() && !arguments[2] && this.usePersistence) {
this.setExpandedStatusForCookie(layerID, this.branchStatus[layerID]);
}
/**
* Fire custom events
*/
if (fireEvents) {
nodeObject = this.nodeRefs[layerID];
if (nodeObject.ontoggle != null) {
eval(nodeObject.ontoggle);
}
if (newDisplay == 'none' && nodeObject.oncollapse != null) {
eval(nodeObject.oncollapse);
} else if (newDisplay == 'inline' && nodeObject.onexpand != null){
eval(nodeObject.onexpand);
}
}
// Swap image
this.swapImage(layerID);
}
// Swap icon
this.swapIcon(layerID);
}
/**
* Swaps the plus/minus branch images
*/
TreeMenu.prototype.swapImage = function (layerID)
{
var imgSrc = document.images['img_' + layerID].src;
var re = /^(.*)(plus|minus)(bottom|top|single)?.gif$/
if (matches = imgSrc.match(re)) {
document.images['img_' + layerID].src = this.stringFormat('{0}{1}{2}{3}',
matches[1],
matches[2] == 'plus' ? 'minus' : 'plus',
matches[3] ? matches[3] : '',
'.gif');
}
}
/**
* Swaps the icon for the expanded icon if one
* has been supplied.
*/
TreeMenu.prototype.swapIcon = function (layerID)
{
if (document.images['icon_' + layerID]) {
var imgSrc = document.images['icon_' + layerID].src;
if (this.nodeRefs[layerID].icon && this.nodeRefs[layerID].expandedIcon) {
var newSrc = (imgSrc.indexOf(this.nodeRefs[layerID].expandedIcon) == -1 ? this.nodeRefs[layerID].expandedIcon : this.nodeRefs[layerID].icon);
document.images['icon_' + layerID].src = this.iconpath + '/' + newSrc;
}
}
}
/**
* Can the browser handle the dynamic menu?
*/
TreeMenu.prototype.doesMenu = function ()
{
return (is_ie4up || is_nav6up || is_gecko || is_opera7);
}
/**
* Can the browser handle save the branch status
*/
TreeMenu.prototype.doesPersistence = function ()
{
return (is_ie4up || is_gecko || is_nav6up || is_opera7);
}
/**
* Returns the appropriate layer accessor
*/
TreeMenu.prototype.getLayer = function (layerID)
{
if (is_ie4) {
return document.all(layerID);
} else if (document.getElementById(layerID)) {
return document.getElementById(layerID);
} else if (document.all(layerID)) {
return document.all(layerID);
}
}
/**
* Save the status of the layer
*/
TreeMenu.prototype.setExpandedStatusForCookie = function (layerID, expanded)
{
this.cookieStatuses[layerID] = expanded;
this.saveCookie();
}
/**
* Load the status of the layer
*/
TreeMenu.prototype.getExpandedStatusFromCookie = function (layerID)
{
if (this.cookieStatuses[layerID]) {
return this.cookieStatuses[layerID];
}
return false;
}
/**
* Saves the cookie that holds which branches are expanded.
* Only saves the details of the branches which are expanded.
*/
TreeMenu.prototype.saveCookie = function ()
{
var cookieString = new Array();
for (var i in this.cookieStatuses) {
if (this.cookieStatuses[i] == true) {
cookieString[cookieString.length] = i;
}
}
document.cookie = 'TreeMenuBranchStatus=' + cookieString.join(':');
}
/**
* Reads cookie parses it for status info and
* stores that info in the class member.
*/
TreeMenu.prototype.loadCookie = function ()
{
var cookie = document.cookie.split('; ');
for (var i=0; i < cookie.length; i++) {
var crumb = cookie[i].split('=');
if ('TreeMenuBranchStatus' == crumb[0] && crumb[1]) {
var expandedBranches = crumb[1].split(':');
for (var j=0; j<expandedBranches.length; j++) {
this.cookieStatuses[expandedBranches[j]] = true;
}
}
}
}
/**
* Reset branch status
*/
TreeMenu.prototype.resetBranches = function ()
{
if (!this.doesPersistence()) {
return false;
}
this.loadCookie();
for (var i=0; i<this.branches.length; i++) {
var status = this.getExpandedStatusFromCookie(this.branches[i]);
// Only update if it's supposed to be expanded and it's not already
if (status == true && this.branchStatus[this.branches[i]] != true) {
if (this.checkParentVisibility(this.branches[i])) {
this.toggleBranch(this.branches[i], true, false);
} else {
this.branchStatus[this.branches[i]] = true;
this.swapImage(this.branches[i]);
}
}
}
}
/**
* Checks whether a branch should be open
* or not based on its parents' status
*/
TreeMenu.prototype.checkParentVisibility = function (layerID)
{
if (this.in_array(this.childParents[layerID], this.branches)
&& this.branchStatus[this.childParents[layerID]]
&& this.checkParentVisibility(this.childParents[layerID]) ) {
return true;
} else if (this.childParents[layerID] == null) {
return true;
}
return false;
}
/**
* New C# style string formatter
*/
TreeMenu.prototype.stringFormat = function (strInput)
{
var idx = 0;
for (var i=1; i<arguments.length; i++) {
while ((idx = strInput.indexOf('{' + (i - 1) + '}', idx)) != -1) {
strInput = strInput.substring(0, idx) + arguments[i] + strInput.substr(idx + 3);
}
}
return strInput;
}
/**
* Also much adored, the PHP implode() function
*/
TreeMenu.prototype.implode = function (seperator, input)
{
var output = '';
for (var i=0; i<input.length; i++) {
if (i == 0) {
output += input[i];
} else {
output += seperator + input[i];
}
}
return output;
}
/**
* Aah, all the old favourites are coming out...
*/
TreeMenu.prototype.in_array = function (item, arr)
{
for (var i=0; i<arr.length; i++) {
if (arr[i] == item) {
return true;
}
}
return false;
}
/**
* TreeNode Class
*/
function TreeNode(title, icon, link, expanded, isDynamic, cssClass, linkTarget, expandedIcon)
{
this.title = title;
this.icon = icon;
this.expandedIcon = expandedIcon;
this.link = link;
this.expanded = expanded;
this.isDynamic = isDynamic;
this.cssClass = cssClass;
this.linkTarget = linkTarget;
this.n = new Array();
this.events = new Array();
this.handlers = null;
this.oncollapse = null;
this.onexpand = null;
this.ontoggle = null;
}
/**
* Adds a node to an already existing node
*/
TreeNode.prototype.addItem = function (newNode)
{
newIndex = this.n.length;
this.n[newIndex] = newNode;
return this.n[newIndex];
}
/**
* Sets an event for this particular node
*/
TreeNode.prototype.setEvent = function (eventName, eventHandler)
{
switch (eventName.toLowerCase()) {
case 'onexpand':
this.onexpand = eventHandler;
break;
case 'oncollapse':
this.oncollapse = eventHandler;
break;
case 'ontoggle':
this.ontoggle = eventHandler;
break;
default:
this.events[eventName] = eventHandler;
}
}
/**
* That's the end of the tree classes. What follows is
* the browser detection code.
*/
//<!--
// Ultimate client-side JavaScript client sniff. Version 3.03
// (C) Netscape Communications 1999-2001. Permission granted to reuse and distribute.
// Revised 17 May 99 to add is_nav5up and is_ie5up (see below).
// Revised 20 Dec 00 to add is_gecko and change is_nav5up to is_nav6up
// also added support for IE5.5 Opera4&5 HotJava3 AOLTV
// Revised 22 Feb 01 to correct Javascript Detection for IE 5.x, Opera 4,
// correct Opera 5 detection
// add support for winME and win2k
// synch with browser-type-oo.js
// Revised 26 Mar 01 to correct Opera detection
// Revised 02 Oct 01 to add IE6 detection
// Everything you always wanted to know about your JavaScript client
// but were afraid to ask. Creates "is_" variables indicating:
// (1) browser vendor:
// is_nav, is_ie, is_opera, is_hotjava, is_webtv, is_TVNavigator, is_AOLTV
// (2) browser version number:
// is_major (integer indicating major version number: 2, 3, 4 ...)
// is_minor (float indicating full version number: 2.02, 3.01, 4.04 ...)
// (3) browser vendor AND major version number
// is_nav2, is_nav3, is_nav4, is_nav4up, is_nav6, is_nav6up, is_gecko, is_ie3,
// is_ie4, is_ie4up, is_ie5, is_ie5up, is_ie5_5, is_ie5_5up, is_ie6, is_ie6up, is_hotjava3, is_hotjava3up,
// is_opera2, is_opera3, is_opera4, is_opera5, is_opera5up
// (4) JavaScript version number:
// is_js (float indicating full JavaScript version number: 1, 1.1, 1.2 ...)
// (5) OS platform and version:
// is_win, is_win16, is_win32, is_win31, is_win95, is_winnt, is_win98, is_winme, is_win2k
// is_os2
// is_mac, is_mac68k, is_macppc
// is_unix
// is_sun, is_sun4, is_sun5, is_suni86
// is_irix, is_irix5, is_irix6
// is_hpux, is_hpux9, is_hpux10
// is_aix, is_aix1, is_aix2, is_aix3, is_aix4
// is_linux, is_sco, is_unixware, is_mpras, is_reliant
// is_dec, is_sinix, is_freebsd, is_bsd
// is_vms
//
// See http://www.it97.de/JavaScript/JS_tutorial/bstat/navobj.html and
// http://www.it97.de/JavaScript/JS_tutorial/bstat/Browseraol.html
// for detailed lists of userAgent strings.
//
// Note: you don't want your Nav4 or IE4 code to "turn off" or
// stop working when new versions of browsers are released, so
// in conditional code forks, use is_ie5up ("IE 5.0 or greater")
// is_opera5up ("Opera 5.0 or greater") instead of is_ie5 or is_opera5
// to check version in code which you want to work on future
// versions.
/**
* Severly curtailed all this as only certain elements
* are required by TreeMenu, specifically:
* o is_ie4up
* o is_nav6up
* o is_gecko
*/
// convert all characters to lowercase to simplify testing
var agt=navigator.userAgent.toLowerCase();
// *** BROWSER VERSION ***
// Note: On IE5, these return 4, so use is_ie5up to detect IE5.
var is_major = parseInt(navigator.appVersion);
var is_minor = parseFloat(navigator.appVersion);
// Note: Opera and WebTV spoof Navigator. We do strict client detection.
// If you want to allow spoofing, take out the tests for opera and webtv.
var is_nav = ((agt.indexOf('mozilla')!=-1) && (agt.indexOf('spoofer')==-1)
&& (agt.indexOf('compatible') == -1) && (agt.indexOf('opera')==-1)
&& (agt.indexOf('webtv')==-1) && (agt.indexOf('hotjava')==-1));
var is_nav6up = (is_nav && (is_major >= 5));
var is_gecko = (agt.indexOf('gecko') != -1);
var is_ie = ((agt.indexOf("msie") != -1) && (agt.indexOf("opera") == -1));
var is_ie4 = (is_ie && (is_major == 4) && (agt.indexOf("msie 4")!=-1) );
var is_ie4up = (is_ie && (is_major >= 4));
var is_opera = (agt.indexOf("opera") != -1);
var is_opera7 = is_opera && (agt.indexOf("opera 7") != -1);
// Patch from Harald Fielker
if (agt.indexOf('konqueror') != -1) {
var is_nav = false;
var is_nav6up = false;
var is_gecko = false;
var is_ie = true;
var is_ie4 = true;
var is_ie4up = true;
}
//--> end hide JavaScript