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-/** $Id: domLib.js 2321 2006-06-12 06:45:41Z dallen $ */
-// {{{ license
-
-/*
- * Copyright 2002-2005 Dan Allen, Mojavelinux.com (dan.allen@mojavelinux.com)
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-// }}}
-// {{{ intro
-
-/**
- * Title: DOM Library Core
- * Version: 0.70
- *
- * 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 <dan.allen@mojavelinux.com>
- * Maintainer: Jason Rust <jrust@rustyparts.com>
- *
- * License: Apache 2.0
- */
-
-// }}}
-// {{{ 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;
-// NOTE: could use window.opera for detecting Opera
-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 || domLib_userAgent.indexOf('msie 7') != -1 || domLib_userAgent.indexOf('msie 8') != -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);
-// fixed in Konq3.2
-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 = 1010;
-
-// -- Detection --
-var domLib_collisionElements;
-var domLib_collisionsCached = false;
-
-var domLib_timeoutStateId = 0;
-var domLib_timeoutStates = new domTT_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;
-}
-
-function domLib_clone(obj)
-{
- var copy = {};
- for (var i in obj)
- {
- var value = obj[i];
- try
- {
- if (value != null && typeof(value) == 'object' && value != window && !value.nodeType)
- {
- copy[i] = domLib_clone(value);
- }
- else
- {
- copy[i] = value;
- }
- }
- catch(e)
- {
- copy[i] = value;
- }
- }
-
- return copy;
-}
-
-// }}}
-// {{{ class domTT_Hash()
-
-function domTT_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
-domTT_Hash.prototype.get = function(in_key)
-{
- if (typeof(this.elementData[in_key]) != 'undefined') {
- return this.elementData[in_key];
- }
-
- return null;
-};
-
-domTT_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;
-};
-
-domTT_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;
-};
-
-domTT_Hash.prototype.size = function()
-{
- return this.length;
-};
-
-domTT_Hash.prototype.has = function(in_key)
-{
- return typeof(this.elementData[in_key]) != 'undefined';
-};
-
-domTT_Hash.prototype.find = function(in_obj)
-{
- for (var tmp_key in this.elementData)
- {
- if (this.elementData[tmp_key] == in_obj)
- {
- return tmp_key;
- }
- }
-
- return null;
-};
-
-domTT_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];
- }
-};
-
-domTT_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, in_bannedTags)
-{
- if (in_object == null)
- {
- return false;
- }
-
- if (in_object == in_ancestor)
- {
- return true;
- }
-
- if (typeof(in_bannedTags) != 'undefined' &&
- (',' + in_bannedTags.join(',') + ',').indexOf(',' + in_object.tagName + ',') != -1)
- {
- return false;
- }
-
- 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, assume we left the building
- catch(e)
- {
- return false;
- }
- }
-
- 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, true);
- 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 domTT_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 domTT_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, in_preserveScroll)
-{
- if (typeof(in_preserveScroll) == 'undefined') {
- in_preserveScroll = false;
- }
-
- 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;
- // consider scroll offset of parent elements
- if (in_object && !in_preserveScroll)
- {
- offsetLeft -= in_object.scrollLeft;
- offsetTop -= in_object.scrollTop;
- }
- }
-
- // MacIE misreports the offsets (even with margin: 0 in body{}), still not perfect
- if (domLib_isMacIE) {
- offsetLeft += 10;
- offsetTop += 10;
- }
-
- return new domTT_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 0;
- }
- else if (in_timeout == 0)
- {
- in_function(in_args);
- return 0;
- }
-
- // must make a copy of the arguments so that we release the reference
- var args = domLib_clone(in_args);
-
- if (!domLib_hasBrokenTimeout)
- {
- return setTimeout(function() { in_function(args); }, in_timeout);
- }
- else
- {
- var id = domLib_timeoutStateId++;
- var data = new domTT_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)
- {
- if (in_id > 0) {
- 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 domTT_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 null;
- }
-
- var candidates = in_frame.parent.document.getElementsByTagName('iframe');
- for (var i = 0; i < candidates.length; i++)
- {
- if (candidates[i].name == name)
- {
- return candidates[i];
- }
- }
-
- return null;
- }
-}
-
-// }}}
-// {{{ 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;
-}
-
-// }}}
-// {{{ domLib_getElementsByTagNames()
-
-function domLib_getElementsByTagNames(in_list, in_excludeHidden)
-{
- 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++)
- {
- // skip objects that have nested embeds, or else we get "flashing"
- if (matches[j].tagName == 'OBJECT' && domLib_isGecko)
- {
- var kids = matches[j].childNodes;
- var skip = false;
- for (var k = 0; k < kids.length; k++)
- {
- if (kids[k].tagName == 'EMBED')
- {
- skip = true;
- break;
- }
- }
- if (skip) continue;
- }
-
- if (in_excludeHidden && domLib_getComputedStyle(matches[j], 'visibility') == 'hidden')
- {
- continue;
- }
-
- elements[elements.length] = matches[j];
- }
- }
-
- return elements;
-}
-
-// }}}
-// {{{ domLib_getComputedStyle()
-
-function domLib_getComputedStyle(in_obj, in_property)
-{
- if (domLib_isIE)
- {
- var humpBackProp = in_property.replace(/-(.)/, function (a, b) { return b.toUpperCase(); });
- return eval('in_obj.currentStyle.' + humpBackProp);
- }
- // getComputedStyle() is broken in konqueror, so let's go for the style object
- else if (domLib_isKonq)
- {
- //var humpBackProp = in_property.replace(/-(.)/, function (a, b) { return b.toUpperCase(); });
- return eval('in_obj.style.' + in_property);
- }
- else
- {
- return document.defaultView.getComputedStyle(in_obj, null).getPropertyValue(in_property);
- }
-}
-
-// }}}
-// {{{ makeTrue()
-
-function makeTrue()
-{
- return true;
-}
-
-// }}}
-// {{{ makeFalse()
-
-function makeFalse()
-{
- return false;
-}
-
-// }}}
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