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2004-10-01
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10KB
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421 lines
// {{{ global constants
/**
* Global constants (DO NOT EDIT)
*/
// browsers
var domLib_userAgent = navigator.userAgent.toLowerCase();
var domLib_isOpera = domLib_userAgent.indexOf('opera 7') != -1 ? 1 : 0;
var domLib_isKonq = domLib_userAgent.indexOf('konq') != -1 ? 1 : 0;
var domLib_isIE = !domLib_isKonq && !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;
var domLib_isIE55up = domLib_isIE5up && !domLib_isIE50;
var domLib_isIE6up = domLib_isIE55up && !domLib_isIE55;
var domLib_isGecko = domLib_userAgent.indexOf('gecko') != -1 ? 1 : 0;
// abilities
var domLib_useLibrary = domLib_isOpera || domLib_isKonq || domLib_isIE5up || domLib_isGecko ? 1 : 0;
var domLib_canTimeout = !(domLib_isKonq || domLib_isIE50);
var domLib_canFade = domLib_isGecko || domLib_isIE55up;
// 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';
// :FIX: bug in Opera that it can't set maxWidth to 'none'
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_selectElements;
var domLib_timeoutStateId = 0;
var domLib_timeoutStates = new Hash();
// }}}
// {{{ Object.prototype.clone
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.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++;
}
}
this.get = function(in_key)
{
return this.elementData[in_key];
}
this.set = function(in_key, in_value)
{
if (typeof(in_value) != 'undefined')
{
if (typeof(this.elementData[in_key]) == 'undefined')
{
this.length++;
}
return this.elementData[in_key] = in_value;
}
return false;
}
this.remove = function(in_key)
{
var tmp_value;
if (typeof(this.elementData[in_key]) != 'undefined')
{
this.length--;
tmp_value = this.elementData[in_key];
delete this.elementData[in_key];
}
return tmp_value;
}
this.size = function()
{
return this.length;
}
this.has = function(in_key)
{
return typeof(this.elementData[in_key]) != 'undefined';
}
}
// }}}
// {{{ 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()
// :WARNING: hideList is being used as an object property and is not a string
function domLib_detectCollisions(in_object, in_recover)
{
// no need to do anything for opera
if (domLib_isOpera)
{
return;
}
if (typeof(domLib_selectElements) == 'undefined')
{
domLib_selectElements = document.getElementsByTagName('select');
}
// if we don't have a tip, then unhide selects
if (in_recover)
{
for (var cnt = 0; cnt < domLib_selectElements.length; cnt++)
{
var thisSelect = domLib_selectElements[cnt];
if (!thisSelect.hideList)
{
thisSelect.hideList = new Hash();
}
// if this is mozilla and it is a regular select or it is multiple and the
// size is not set, then we don't need to unhide
if (domLib_isGecko && (!thisSelect.multiple || thisSelect.size < 0))
{
continue;
}
thisSelect.hideList.remove(in_object.id);
if (!thisSelect.hideList.length)
{
domLib_selectElements[cnt].style.visibility = 'visible';
}
}
return;
}
// okay, we have a tip, so hunt and destroy
var objectOffsets = domLib_getOffsets(in_object);
for (var cnt = 0; cnt < domLib_selectElements.length; cnt++)
{
var thisSelect = domLib_selectElements[cnt];
// if this is mozilla and not a multiple-select or the multiple select size
// is not defined, then continue since mozilla does not have an issue
if (domLib_isGecko && (!thisSelect.multiple || thisSelect.size < 0))
{
continue;
}
// if the select is in the tip, then skip it
// :WARNING: is this too costly?
if (domLib_isDescendantOf(thisSelect, in_object))
{
continue;
}
if (!thisSelect.hideList)
{
thisSelect.hideList = new Hash();
}
var selectOffsets = domLib_getOffsets(thisSelect);
// for mozilla we only have to worry about the scrollbar itself
if (domLib_isGecko)
{
selectOffsets.set('left', selectOffsets.get('left') + thisSelect.offsetWidth - domLib_scrollbarWidth);
selectOffsets.set('leftCenter', selectOffsets.get('left') + domLib_scrollbarWidth/2);
selectOffsets.set('radius', Math.max(thisSelect.offsetHeight, domLib_scrollbarWidth/2));
}
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')))
{
thisSelect.hideList.remove(in_object.id);
if (!thisSelect.hideList.length)
{
thisSelect.style.visibility = 'visible';
}
}
else
{
thisSelect.hideList.set(in_object.id, true);
thisSelect.style.visibility = 'hidden';
}
}
}
}
// }}}
// {{{ 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;
}
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 == 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_canTimeout)
{
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_canTimeout)
{
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();
if (domLib_isKonq)
{
eventPosition.set('x', in_eventObj.x);
eventPosition.set('y', in_eventObj.y);
}
else if (domLib_isIE)
{
if (document.documentElement.clientHeight)
{
eventPosition.set('x', in_eventObj.clientX + document.documentElement.scrollLeft);
eventPosition.set('y', in_eventObj.clientY + document.documentElement.scrollTop);
}
// :WARNING: consider case where document.body doesn't yet exist for IE
else
{
eventPosition.set('x', in_eventObj.clientX + document.body.scrollLeft);
eventPosition.set('y', in_eventObj.clientY + document.body.scrollTop);
}
}
else
{
eventPosition.set('x', in_eventObj.pageX);
eventPosition.set('y', in_eventObj.pageY);
}
return eventPosition;
}
// }}}
// {{{ makeTrue()
function makeTrue()
{
return true;
}
// }}}
// {{{ makeFalse()
function makeFalse()
{
return false;
}
// }}}