"http://www.w3.org/TR/REC-html40/strict.dtd">
[DOM Menu] Example 4: Vertical Menu
/** $Id: domLib.js 1891 2005-05-25 05:01:19Z dallen $ */
// {{{ docs <-- this is a VIM (text editor) text fold
/**
* Title: DOM Library Core
* Version: 0.65
*
* Summary:
* A set of commonly used functions that make it easier to create javascript
* applications that rely on the DOM.
*
* Updated: 2005/05/17
*
* Maintainer: Dan Allen
* Maintainer: Jason Rust
*
* License: LGPL
*/
// }}}
// {{{ global constants (DO NOT EDIT)
/**
* Global constants (DO NOT EDIT)
*/
// -- Browser Detection --
var domLib_userAgent = navigator.userAgent.toLowerCase();
var domLib_isMac = navigator.appVersion.indexOf('Mac') != -1;
var domLib_isWin = domLib_userAgent.indexOf('windows') != -1;
var domLib_isOpera = domLib_userAgent.indexOf('opera') != -1;
var domLib_isOpera7up = domLib_userAgent.match(/opera.(7|8)/i);
var domLib_isSafari = domLib_userAgent.indexOf('safari') != -1;
var domLib_isKonq = domLib_userAgent.indexOf('konqueror') != -1;
// Both konqueror and safari use the khtml rendering engine
var domLib_isKHTML = (domLib_isKonq || domLib_isSafari || domLib_userAgent.indexOf('khtml') != -1);
var domLib_isIE = (!domLib_isKHTML && !domLib_isOpera && (domLib_userAgent.indexOf('msie 5') != -1 || domLib_userAgent.indexOf('msie 6') != -1));
var domLib_isIE5up = domLib_isIE;
var domLib_isIE50 = (domLib_isIE && domLib_userAgent.indexOf('msie 5.0') != -1);
var domLib_isIE55 = (domLib_isIE && domLib_userAgent.indexOf('msie 5.5') != -1);
var domLib_isIE5 = (domLib_isIE50 || domLib_isIE55);
// safari and konq may use string "khtml, like gecko", so check for destinctive /
var domLib_isGecko = domLib_userAgent.indexOf('gecko/') != -1;
var domLib_isMacIE = (domLib_isIE && domLib_isMac);
var domLib_isIE55up = domLib_isIE5up && !domLib_isIE50 && !domLib_isMacIE;
var domLib_isIE6up = domLib_isIE55up && !domLib_isIE55;
// -- Browser Abilities --
var domLib_standardsMode = (document.compatMode && document.compatMode == 'CSS1Compat');
var domLib_useLibrary = (domLib_isOpera7up || domLib_isKHTML || domLib_isIE5up || domLib_isGecko || domLib_isMacIE || document.defaultView);
var domLib_hasBrokenTimeout = (domLib_isMacIE || (domLib_isKonq && domLib_userAgent.match(/konqueror\/3.([2-9])/) == null));
var domLib_canFade = (domLib_isGecko || domLib_isIE || domLib_isSafari || domLib_isOpera);
var domLib_canDrawOverSelect = (domLib_isMac || domLib_isOpera || domLib_isGecko);
var domLib_canDrawOverFlash = (domLib_isMac || domLib_isWin);
// -- Event Variables --
var domLib_eventTarget = domLib_isIE ? 'srcElement' : 'currentTarget';
var domLib_eventButton = domLib_isIE ? 'button' : 'which';
var domLib_eventTo = domLib_isIE ? 'toElement' : 'relatedTarget';
var domLib_stylePointer = domLib_isIE ? 'hand' : 'pointer';
// NOTE: a bug exists in Opera that prevents maxWidth from being set to 'none', so we make it huge
var domLib_styleNoMaxWidth = domLib_isOpera ? '10000px' : 'none';
var domLib_hidePosition = '-1000px';
var domLib_scrollbarWidth = 14;
var domLib_autoId = 1;
var domLib_zIndex = 100;
// -- Detection --
var domLib_collisionElements;
var domLib_collisionsCached = false;
var domLib_timeoutStateId = 0;
var domLib_timeoutStates = new Hash();
// }}}
// {{{ DOM enhancements
if (!document.ELEMENT_NODE)
{
document.ELEMENT_NODE = 1;
document.ATTRIBUTE_NODE = 2;
document.TEXT_NODE = 3;
document.DOCUMENT_NODE = 9;
document.DOCUMENT_FRAGMENT_NODE = 11;
}
Object.prototype.clone = function()
{
var copy = {};
for (var i in this)
{
var value = this[i];
try
{
if (value != null && typeof(value) == 'object' && value != window && !value.nodeType)
{
// for IE5 which doesn't inherit prototype
value.clone = Object.clone;
copy[i] = value.clone();
}
else
{
copy[i] = value;
}
}
catch(e)
{
copy[i] = value;
}
}
return copy;
}
// }}}
// {{{ class Hash()
function Hash()
{
this.length = 0;
this.numericLength = 0;
this.elementData = [];
for (var i = 0; i < arguments.length; i += 2)
{
if (typeof(arguments[i + 1]) != 'undefined')
{
this.elementData[arguments[i]] = arguments[i + 1];
this.length++;
if (arguments[i] == parseInt(arguments[i]))
{
this.numericLength++;
}
}
}
}
// using prototype as opposed to inner functions saves on memory
Hash.prototype.get = function(in_key)
{
return this.elementData[in_key];
}
Hash.prototype.set = function(in_key, in_value)
{
if (typeof(in_value) != 'undefined')
{
if (typeof(this.elementData[in_key]) == 'undefined')
{
this.length++;
if (in_key == parseInt(in_key))
{
this.numericLength++;
}
}
return this.elementData[in_key] = in_value;
}
return false;
}
Hash.prototype.remove = function(in_key)
{
var tmp_value;
if (typeof(this.elementData[in_key]) != 'undefined')
{
this.length--;
if (in_key == parseInt(in_key))
{
this.numericLength--;
}
tmp_value = this.elementData[in_key];
delete this.elementData[in_key];
}
return tmp_value;
}
Hash.prototype.size = function()
{
return this.length;
}
Hash.prototype.has = function(in_key)
{
return typeof(this.elementData[in_key]) != 'undefined';
}
Hash.prototype.find = function(in_obj)
{
for (var tmp_key in this.elementData)
{
if (this.elementData[tmp_key] == in_obj)
{
return tmp_key;
}
}
}
Hash.prototype.merge = function(in_hash)
{
for (var tmp_key in in_hash.elementData)
{
if (typeof(this.elementData[tmp_key]) == 'undefined')
{
this.length++;
if (tmp_key == parseInt(tmp_key))
{
this.numericLength++;
}
}
this.elementData[tmp_key] = in_hash.elementData[tmp_key];
}
}
Hash.prototype.compare = function(in_hash)
{
if (this.length != in_hash.length)
{
return false;
}
for (var tmp_key in this.elementData)
{
if (this.elementData[tmp_key] != in_hash.elementData[tmp_key])
{
return false;
}
}
return true;
}
// }}}
// {{{ domLib_isDescendantOf()
function domLib_isDescendantOf(in_object, in_ancestor)
{
if (in_object == in_ancestor)
{
return true;
}
while (in_object != document.documentElement)
{
try
{
if ((tmp_object = in_object.offsetParent) && tmp_object == in_ancestor)
{
return true;
}
else if ((tmp_object = in_object.parentNode) == in_ancestor)
{
return true;
}
else
{
in_object = tmp_object;
}
}
// in case we get some wierd error, just assume we haven't gone out yet
catch(e)
{
return true;
}
}
return false;
}
// }}}
// {{{ domLib_detectCollisions()
/**
* For any given target element, determine if elements on the page
* are colliding with it that do not obey the rules of z-index.
*/
function domLib_detectCollisions(in_object, in_recover, in_useCache)
{
// the reason for the cache is that if the root menu is built before
// the page is done loading, then it might not find all the elements.
// so really the only time you don't use cache is when building the
// menu as part of the page load
if (!domLib_collisionsCached)
{
var tags = [];
if (!domLib_canDrawOverFlash)
{
tags[tags.length] = 'object';
}
if (!domLib_canDrawOverSelect)
{
tags[tags.length] = 'select';
}
domLib_collisionElements = domLib_getElementsByTagNames(tags);
domLib_collisionsCached = in_useCache;
}
// if we don't have a tip, then unhide selects
if (in_recover)
{
for (var cnt = 0; cnt < domLib_collisionElements.length; cnt++)
{
var thisElement = domLib_collisionElements[cnt];
if (!thisElement.hideList)
{
thisElement.hideList = new Hash();
}
thisElement.hideList.remove(in_object.id);
if (!thisElement.hideList.length)
{
domLib_collisionElements[cnt].style.visibility = 'visible';
if (domLib_isKonq)
{
domLib_collisionElements[cnt].style.display = '';
}
}
}
return;
}
else if (domLib_collisionElements.length == 0)
{
return;
}
// okay, we have a tip, so hunt and destroy
var objectOffsets = domLib_getOffsets(in_object);
for (var cnt = 0; cnt < domLib_collisionElements.length; cnt++)
{
var thisElement = domLib_collisionElements[cnt];
// if collision element is in active element, move on
// WARNING: is this too costly?
if (domLib_isDescendantOf(thisElement, in_object))
{
continue;
}
// konqueror only has trouble with multirow selects
if (domLib_isKonq &&
thisElement.tagName == 'SELECT' &&
(thisElement.size <= 1 && !thisElement.multiple))
{
continue;
}
if (!thisElement.hideList)
{
thisElement.hideList = new Hash();
}
var selectOffsets = domLib_getOffsets(thisElement);
var center2centerDistance = Math.sqrt(Math.pow(selectOffsets.get('leftCenter') - objectOffsets.get('leftCenter'), 2) + Math.pow(selectOffsets.get('topCenter') - objectOffsets.get('topCenter'), 2));
var radiusSum = selectOffsets.get('radius') + objectOffsets.get('radius');
// the encompassing circles are overlapping, get in for a closer look
if (center2centerDistance < radiusSum)
{
// tip is left of select
if ((objectOffsets.get('leftCenter') <= selectOffsets.get('leftCenter') && objectOffsets.get('right') < selectOffsets.get('left')) ||
// tip is right of select
(objectOffsets.get('leftCenter') > selectOffsets.get('leftCenter') && objectOffsets.get('left') > selectOffsets.get('right')) ||
// tip is above select
(objectOffsets.get('topCenter') <= selectOffsets.get('topCenter') && objectOffsets.get('bottom') < selectOffsets.get('top')) ||
// tip is below select
(objectOffsets.get('topCenter') > selectOffsets.get('topCenter') && objectOffsets.get('top') > selectOffsets.get('bottom')))
{
thisElement.hideList.remove(in_object.id);
if (!thisElement.hideList.length)
{
thisElement.style.visibility = 'visible';
if (domLib_isKonq)
{
thisElement.style.display = '';
}
}
}
else
{
thisElement.hideList.set(in_object.id, true);
thisElement.style.visibility = 'hidden';
if (domLib_isKonq)
{
thisElement.style.display = 'none';
}
}
}
}
}
// }}}
// {{{ domLib_getOffsets()
function domLib_getOffsets(in_object)
{
var originalObject = in_object;
var originalWidth = in_object.offsetWidth;
var originalHeight = in_object.offsetHeight;
var offsetLeft = 0;
var offsetTop = 0;
while (in_object)
{
offsetLeft += in_object.offsetLeft;
offsetTop += in_object.offsetTop;
in_object = in_object.offsetParent;
}
// MacIE misreports the offsets (even with margin: 0 in body{}), still not perfect
if (domLib_isMacIE) {
offsetLeft += 10;
offsetTop += 10;
}
return new Hash(
'left', offsetLeft,
'top', offsetTop,
'right', offsetLeft + originalWidth,
'bottom', offsetTop + originalHeight,
'leftCenter', offsetLeft + originalWidth/2,
'topCenter', offsetTop + originalHeight/2,
'radius', Math.max(originalWidth, originalHeight)
);
}
// }}}
// {{{ domLib_setTimeout()
function domLib_setTimeout(in_function, in_timeout, in_args)
{
if (typeof(in_args) == 'undefined')
{
in_args = [];
}
if (in_timeout == -1)
{
// timeout event is disabled
return;
}
else if (in_timeout == 0)
{
in_function(in_args);
return 0;
}
// must make a copy of the arguments so that we release the reference
if (typeof(in_args.clone) != 'function')
{
in_args.clone = Object.clone;
}
var args = in_args.clone();
if (!domLib_hasBrokenTimeout)
{
return setTimeout(function() { in_function(args); }, in_timeout);
}
else
{
var id = domLib_timeoutStateId++;
var data = new Hash();
data.set('function', in_function);
data.set('args', args);
domLib_timeoutStates.set(id, data);
data.set('timeoutId', setTimeout('domLib_timeoutStates.get(' + id + ').get(\'function\')(domLib_timeoutStates.get(' + id + ').get(\'args\')); domLib_timeoutStates.remove(' + id + ');', in_timeout));
return id;
}
}
// }}}
// {{{ domLib_clearTimeout()
function domLib_clearTimeout(in_id)
{
if (!domLib_hasBrokenTimeout)
{
clearTimeout(in_id);
}
else
{
if (domLib_timeoutStates.has(in_id))
{
clearTimeout(domLib_timeoutStates.get(in_id).get('timeoutId'))
domLib_timeoutStates.remove(in_id);
}
}
}
// }}}
// {{{ domLib_getEventPosition()
function domLib_getEventPosition(in_eventObj)
{
var eventPosition = new Hash('x', 0, 'y', 0, 'scrollX', 0, 'scrollY', 0);
// IE varies depending on standard compliance mode
if (domLib_isIE)
{
var doc = (domLib_standardsMode ? document.documentElement : document.body);
// NOTE: events may fire before the body has been loaded
if (doc)
{
eventPosition.set('x', in_eventObj.clientX + doc.scrollLeft);
eventPosition.set('y', in_eventObj.clientY + doc.scrollTop);
eventPosition.set('scrollX', doc.scrollLeft);
eventPosition.set('scrollY', doc.scrollTop);
}
}
else
{
eventPosition.set('x', in_eventObj.pageX);
eventPosition.set('y', in_eventObj.pageY);
eventPosition.set('scrollX', in_eventObj.pageX - in_eventObj.clientX);
eventPosition.set('scrollY', in_eventObj.pageY - in_eventObj.clientY);
}
return eventPosition;
}
// }}}
// {{{ domLib_cancelBubble()
function domLib_cancelBubble(in_event)
{
var eventObj = in_event ? in_event : window.event;
eventObj.cancelBubble = true;
}
// }}}
// {{{ domLib_getIFrameReference()
function domLib_getIFrameReference(in_frame)
{
if (domLib_isGecko || domLib_isIE)
{
return in_frame.frameElement;
}
else
{
// we could either do it this way or require an id on the frame
// equivalent to the name
var name = in_frame.name;
if (!name || !in_frame.parent)
{
return;
}
var candidates = in_frame.parent.document.getElementsByTagName('iframe');
for (var i = 0; i < candidates.length; i++)
{
if (candidates[i].name == name)
{
return candidates[i];
}
}
}
}
// }}}
// {{{ domLib_getElementsByClass()
function domLib_getElementsByClass(in_class)
{
var elements = domLib_isIE5 ? document.all : document.getElementsByTagName('*');
var matches = [];
var cnt = 0;
for (var i = 0; i < elements.length; i++)
{
if ((" " + elements[i].className + " ").indexOf(" " + in_class + " ") != -1)
{
matches[cnt++] = elements[i];
}
}
return matches;
}
// }}}
// {{{
function domLib_getElementsByTagNames(in_list)
{
var elements = [];
for (var i = 0; i < in_list.length; i++)
{
var matches = document.getElementsByTagName(in_list[i]);
for (var j = 0; j < matches.length; j++)
{
elements[elements.length] = matches[j];
}
}
return elements;
}
// }}}
// {{{ makeTrue()
function makeTrue()
{
return true;
}
// }}}
// {{{ makeFalse()
function makeFalse()
{
return false;
}
// }}}
/** $Id: domMenu.js 1884 2005-05-24 05:08:38Z dallen $ */
// {{{ docs <-- this is a VIM (text editor) text fold
/**
* DOM Menu 0.3.4
*
* Summary: Allows developers to add dynamic drop down menus on webpages. The
* menu can either be horizontal or vertical, and can open in either
* direction. It has both edge detection and