Incam_FormulariosCalidad/js/base.js
2011-03-09 18:42:43 +00:00

2994 lines
90 KiB
JavaScript

/* Prototype JavaScript framework, version 1.5.0_rc0
* (c) 2005 Sam Stephenson <sam@conio.net>
*
* Prototype is freely distributable under the terms of an MIT-style license.
* For details, see the Prototype web site: http://prototype.conio.net/
*
/*--------------------------------------------------------------------------*/
var Prototype = {
Version: '1.5.0_rc0',
ScriptFragment: '(?:<script.*?>)((\n|\r|.)*?)(?:<\/script>)',
emptyFunction: function() {},
K: function(x) {return x}
}
var Class = {
create: function() {
return function() {
this.initialize.apply(this, arguments);
}
}
}
var Abstract = new Object();
Object.extend = function(destination, source) {
for (var property in source) {
destination[property] = source[property];
}
return destination;
}
Object.inspect = function(object) {
try {
if (object == undefined) return 'undefined';
if (object == null) return 'null';
return object.inspect ? object.inspect() : object.toString();
} catch (e) {
if (e instanceof RangeError) return '...';
throw e;
}
}
Function.prototype.bind = function() {
var __method = this, args = $A(arguments), object = args.shift();
return function() {
return __method.apply(object, args.concat($A(arguments)));
}
}
Function.prototype.bindAsEventListener = function(object) {
var __method = this;
return function(event) {
return __method.call(object, event || window.event);
}
}
Object.extend(Number.prototype, {
toColorPart: function() {
var digits = this.toString(16);
if (this < 16) return '0' + digits;
return digits;
},
succ: function() {
return this + 1;
},
times: function(iterator) {
$R(0, this, true).each(iterator);
return this;
}
});
var Try = {
these: function() {
var returnValue;
for (var i = 0; i < arguments.length; i++) {
var lambda = arguments[i];
try {
returnValue = lambda();
break;
} catch (e) {}
}
return returnValue;
}
}
/*--------------------------------------------------------------------------*/
Object.extend(String.prototype, {
gsub: function(pattern, replacement) {
var result = '', source = this, match;
replacement = arguments.callee.prepareReplacement(replacement);
while (source.length > 0) {
if (match = source.match(pattern)) {
result += source.slice(0, match.index);
result += (replacement(match) || '').toString();
source = source.slice(match.index + match[0].length);
} else {
result += source, source = '';
}
}
return result;
},
sub: function(pattern, replacement, count) {
replacement = this.gsub.prepareReplacement(replacement);
count = count === undefined ? 1 : count;
return this.gsub(pattern, function(match) {
if (--count < 0) return match[0];
return replacement(match);
});
},
scan: function(pattern, iterator) {
this.gsub(pattern, iterator);
return this;
},
truncate: function(length, truncation) {
length = length || 30;
truncation = truncation === undefined ? '...' : truncation;
return this.length > length ?
this.slice(0, length - truncation.length) + truncation : this;
},
strip: function() {
return this.replace(/^\s+/, '').replace(/\s+$/, '');
},
stripTags: function() {
return this.replace(/<\/?[^>]+>/gi, '');
},
stripScripts: function() {
return this.replace(new RegExp(Prototype.ScriptFragment, 'img'), '');
},
extractScripts: function() {
var matchAll = new RegExp(Prototype.ScriptFragment, 'img');
var matchOne = new RegExp(Prototype.ScriptFragment, 'im');
return (this.match(matchAll) || []).map(function(scriptTag) {
return (scriptTag.match(matchOne) || ['', ''])[1];
});
},
evalScripts: function() {
return this.extractScripts().map(function(script) { return eval(script) });
},
escapeHTML: function() {
var div = document.createElement('div');
var text = document.createTextNode(this);
div.appendChild(text);
return div.innerHTML;
},
unescapeHTML: function() {
var div = document.createElement('div');
div.innerHTML = this.stripTags();
return div.childNodes[0] ? div.childNodes[0].nodeValue : '';
},
toQueryParams: function() {
var pairs = this.match(/^\??(.*)$/)[1].split('&');
return pairs.inject({}, function(params, pairString) {
var pair = pairString.split('=');
params[pair[0]] = pair[1];
return params;
});
},
toArray: function() {
return this.split('');
},
camelize: function() {
var oStringList = this.split('-');
if (oStringList.length == 1) return oStringList[0];
var camelizedString = this.indexOf('-') == 0
? oStringList[0].charAt(0).toUpperCase() + oStringList[0].substring(1)
: oStringList[0];
for (var i = 1, len = oStringList.length; i < len; i++) {
var s = oStringList[i];
camelizedString += s.charAt(0).toUpperCase() + s.substring(1);
}
return camelizedString;
},
inspect: function() {
return "'" + this.replace(/\\/g, '\\\\').replace(/'/g, '\\\'') + "'";
}
});
String.prototype.gsub.prepareReplacement = function(replacement) {
if (typeof replacement == 'function') return replacement;
var template = new Template(replacement);
return function(match) { return template.evaluate(match) };
}
String.prototype.parseQuery = String.prototype.toQueryParams;
var Template = Class.create();
Template.Pattern = /(^|.|\r|\n)(#\{(.*?)\})/;
Template.prototype = {
initialize: function(template, pattern) {
this.template = template.toString();
this.pattern = pattern || Template.Pattern;
},
evaluate: function(object) {
return this.template.gsub(this.pattern, function(match) {
var before = match[1];
if (before == '\\') return match[2];
return before + (object[match[3]] || '').toString();
});
}
}
var $break = new Object();
var $continue = new Object();
var Enumerable = {
each: function(iterator) {
var index = 0;
try {
this._each(function(value) {
try {
iterator(value, index++);
} catch (e) {
if (e != $continue) throw e;
}
});
} catch (e) {
if (e != $break) throw e;
}
},
all: function(iterator) {
var result = true;
this.each(function(value, index) {
result = result && !!(iterator || Prototype.K)(value, index);
if (!result) throw $break;
});
return result;
},
any: function(iterator) {
var result = true;
this.each(function(value, index) {
if (result = !!(iterator || Prototype.K)(value, index))
throw $break;
});
return result;
},
collect: function(iterator) {
var results = [];
this.each(function(value, index) {
results.push(iterator(value, index));
});
return results;
},
detect: function (iterator) {
var result;
this.each(function(value, index) {
if (iterator(value, index)) {
result = value;
throw $break;
}
});
return result;
},
findAll: function(iterator) {
var results = [];
this.each(function(value, index) {
if (iterator(value, index))
results.push(value);
});
return results;
},
grep: function(pattern, iterator) {
var results = [];
this.each(function(value, index) {
var stringValue = value.toString();
if (stringValue.match(pattern))
results.push((iterator || Prototype.K)(value, index));
})
return results;
},
include: function(object) {
var found = false;
this.each(function(value) {
if (value == object) {
found = true;
throw $break;
}
});
return found;
},
inject: function(memo, iterator) {
this.each(function(value, index) {
memo = iterator(memo, value, index);
});
return memo;
},
invoke: function(method) {
var args = $A(arguments).slice(1);
return this.collect(function(value) {
return value[method].apply(value, args);
});
},
max: function(iterator) {
var result;
this.each(function(value, index) {
value = (iterator || Prototype.K)(value, index);
if (result == undefined || value >= result)
result = value;
});
return result;
},
min: function(iterator) {
var result;
this.each(function(value, index) {
value = (iterator || Prototype.K)(value, index);
if (result == undefined || value < result)
result = value;
});
return result;
},
partition: function(iterator) {
var trues = [], falses = [];
this.each(function(value, index) {
((iterator || Prototype.K)(value, index) ?
trues : falses).push(value);
});
return [trues, falses];
},
pluck: function(property) {
var results = [];
this.each(function(value, index) {
results.push(value[property]);
});
return results;
},
reject: function(iterator) {
var results = [];
this.each(function(value, index) {
if (!iterator(value, index))
results.push(value);
});
return results;
},
sortBy: function(iterator) {
return this.collect(function(value, index) {
return {value: value, criteria: iterator(value, index)};
}).sort(function(left, right) {
var a = left.criteria, b = right.criteria;
return a < b ? -1 : a > b ? 1 : 0;
}).pluck('value');
},
toArray: function() {
return this.collect(Prototype.K);
},
zip: function() {
var iterator = Prototype.K, args = $A(arguments);
if (typeof args.last() == 'function')
iterator = args.pop();
var collections = [this].concat(args).map($A);
return this.map(function(value, index) {
return iterator(collections.pluck(index));
});
},
inspect: function() {
return '#<Enumerable:' + this.toArray().inspect() + '>';
}
}
Object.extend(Enumerable, {
map: Enumerable.collect,
find: Enumerable.detect,
select: Enumerable.findAll,
member: Enumerable.include,
entries: Enumerable.toArray
});
var $A = Array.from = function(iterable) {
if (!iterable) return [];
if (iterable.toArray) {
return iterable.toArray();
} else {
var results = [];
for (var i = 0; i < iterable.length; i++)
results.push(iterable[i]);
return results;
}
}
Object.extend(Array.prototype, Enumerable);
if (!Array.prototype._reverse)
Array.prototype._reverse = Array.prototype.reverse;
Object.extend(Array.prototype, {
_each: function(iterator) {
for (var i = 0; i < this.length; i++)
iterator(this[i]);
},
clear: function() {
this.length = 0;
return this;
},
first: function() {
return this[0];
},
last: function() {
return this[this.length - 1];
},
compact: function() {
return this.select(function(value) {
return value != undefined || value != null;
});
},
flatten: function() {
return this.inject([], function(array, value) {
return array.concat(value && value.constructor == Array ?
value.flatten() : [value]);
});
},
without: function() {
var values = $A(arguments);
return this.select(function(value) {
return !values.include(value);
});
},
indexOf: function(object) {
for (var i = 0; i < this.length; i++)
if (this[i] == object) return i;
return -1;
},
reverse: function(inline) {
return (inline !== false ? this : this.toArray())._reverse();
},
inspect: function() {
return '[' + this.map(Object.inspect).join(', ') + ']';
}
});
var Hash = {
_each: function(iterator) {
for (var key in this) {
var value = this[key];
if (typeof value == 'function') continue;
var pair = [key, value];
pair.key = key;
pair.value = value;
iterator(pair);
}
},
keys: function() {
return this.pluck('key');
},
values: function() {
return this.pluck('value');
},
merge: function(hash) {
return $H(hash).inject($H(this), function(mergedHash, pair) {
mergedHash[pair.key] = pair.value;
return mergedHash;
});
},
toQueryString: function() {
return this.map(function(pair) {
return pair.map(encodeURIComponent).join('=');
}).join('&');
},
inspect: function() {
return '#<Hash:{' + this.map(function(pair) {
return pair.map(Object.inspect).join(': ');
}).join(', ') + '}>';
}
}
function $H(object) {
var hash = Object.extend({}, object || {});
Object.extend(hash, Enumerable);
Object.extend(hash, Hash);
return hash;
}
ObjectRange = Class.create();
Object.extend(ObjectRange.prototype, Enumerable);
Object.extend(ObjectRange.prototype, {
initialize: function(start, end, exclusive) {
this.start = start;
this.end = end;
this.exclusive = exclusive;
},
_each: function(iterator) {
var value = this.start;
do {
iterator(value);
value = value.succ();
} while (this.include(value));
},
include: function(value) {
if (value < this.start)
return false;
if (this.exclusive)
return value < this.end;
return value <= this.end;
}
});
var $R = function(start, end, exclusive) {
return new ObjectRange(start, end, exclusive);
}
var Ajax = {
getTransport: function() {
return Try.these(
function() {return new XMLHttpRequest()},
function() {return new ActiveXObject('Msxml2.XMLHTTP')},
function() {return new ActiveXObject('Microsoft.XMLHTTP')}
) || false;
},
activeRequestCount: 0
}
Ajax.Responders = {
responders: [],
_each: function(iterator) {
this.responders._each(iterator);
},
register: function(responderToAdd) {
if (!this.include(responderToAdd))
this.responders.push(responderToAdd);
},
unregister: function(responderToRemove) {
this.responders = this.responders.without(responderToRemove);
},
dispatch: function(callback, request, transport, json) {
this.each(function(responder) {
if (responder[callback] && typeof responder[callback] == 'function') {
try {
responder[callback].apply(responder, [request, transport, json]);
} catch (e) {}
}
});
}
};
Object.extend(Ajax.Responders, Enumerable);
Ajax.Responders.register({
onCreate: function() {
Ajax.activeRequestCount++;
},
onComplete: function() {
Ajax.activeRequestCount--;
}
});
Ajax.Base = function() {};
Ajax.Base.prototype = {
setOptions: function(options) {
this.options = {
method: 'post',
asynchronous: true,
contentType: 'application/x-www-form-urlencoded',
parameters: ''
}
Object.extend(this.options, options || {});
},
responseIsSuccess: function() {
return this.transport.status == undefined
|| this.transport.status == 0
|| (this.transport.status >= 200 && this.transport.status < 300);
},
responseIsFailure: function() {
return !this.responseIsSuccess();
}
}
Ajax.Request = Class.create();
Ajax.Request.Events =
['Uninitialized', 'Loading', 'Loaded', 'Interactive', 'Complete'];
Ajax.Request.prototype = Object.extend(new Ajax.Base(), {
initialize: function(url, options) {
this.transport = Ajax.getTransport();
this.setOptions(options);
this.request(url);
},
request: function(url) {
var parameters = this.options.parameters || '';
if (parameters.length > 0) parameters += '&_=';
try {
this.url = url;
if (this.options.method == 'get' && parameters.length > 0)
this.url += (this.url.match(/\?/) ? '&' : '?') + parameters;
Ajax.Responders.dispatch('onCreate', this, this.transport);
this.transport.open(this.options.method, this.url,
this.options.asynchronous);
if (this.options.asynchronous) {
this.transport.onreadystatechange = this.onStateChange.bind(this);
setTimeout((function() {this.respondToReadyState(1)}).bind(this), 10);
}
this.setRequestHeaders();
var body = this.options.postBody ? this.options.postBody : parameters;
this.transport.send(this.options.method == 'post' ? body : null);
} catch (e) {
this.dispatchException(e);
}
},
setRequestHeaders: function() {
var requestHeaders =
['X-Requested-With', 'XMLHttpRequest',
'X-Prototype-Version', Prototype.Version,
'Accept', 'text/javascript, text/html, application/xml, text/xml, */*'];
if (this.options.method == 'post') {
requestHeaders.push('Content-type', this.options.contentType);
/* Force "Connection: close" for Mozilla browsers to work around
* a bug where XMLHttpReqeuest sends an incorrect Content-length
* header. See Mozilla Bugzilla #246651.
*/
if (this.transport.overrideMimeType)
requestHeaders.push('Connection', 'close');
}
if (this.options.requestHeaders)
requestHeaders.push.apply(requestHeaders, this.options.requestHeaders);
for (var i = 0; i < requestHeaders.length; i += 2)
this.transport.setRequestHeader(requestHeaders[i], requestHeaders[i+1]);
},
onStateChange: function() {
var readyState = this.transport.readyState;
if (readyState != 1)
this.respondToReadyState(this.transport.readyState);
},
header: function(name) {
try {
return this.transport.getResponseHeader(name);
} catch (e) {}
},
evalJSON: function() {
try {
return eval('(' + this.header('X-JSON') + ')');
} catch (e) {}
},
evalResponse: function() {
try {
return eval(this.transport.responseText);
} catch (e) {
this.dispatchException(e);
}
},
respondToReadyState: function(readyState) {
var event = Ajax.Request.Events[readyState];
var transport = this.transport, json = this.evalJSON();
if (event == 'Complete') {
try {
(this.options['on' + this.transport.status]
|| this.options['on' + (this.responseIsSuccess() ? 'Success' : 'Failure')]
|| Prototype.emptyFunction)(transport, json);
} catch (e) {
this.dispatchException(e);
}
if ((this.header('Content-type') || '').match(/^text\/javascript/i))
this.evalResponse();
}
try {
(this.options['on' + event] || Prototype.emptyFunction)(transport, json);
Ajax.Responders.dispatch('on' + event, this, transport, json);
} catch (e) {
this.dispatchException(e);
}
/* Avoid memory leak in MSIE: clean up the oncomplete event handler */
if (event == 'Complete')
this.transport.onreadystatechange = Prototype.emptyFunction;
},
dispatchException: function(exception) {
(this.options.onException || Prototype.emptyFunction)(this, exception);
Ajax.Responders.dispatch('onException', this, exception);
}
});
Ajax.Updater = Class.create();
Object.extend(Object.extend(Ajax.Updater.prototype, Ajax.Request.prototype), {
initialize: function(container, url, options) {
this.containers = {
success: container.success ? $(container.success) : $(container),
failure: container.failure ? $(container.failure) :
(container.success ? null : $(container))
}
this.transport = Ajax.getTransport();
this.setOptions(options);
var onComplete = this.options.onComplete || Prototype.emptyFunction;
this.options.onComplete = (function(transport, object) {
this.updateContent();
onComplete(transport, object);
}).bind(this);
this.request(url);
},
updateContent: function() {
var receiver = this.responseIsSuccess() ?
this.containers.success : this.containers.failure;
var response = this.transport.responseText;
if (!this.options.evalScripts)
response = response.stripScripts();
if (receiver) {
if (this.options.insertion) {
new this.options.insertion(receiver, response);
} else {
Element.update(receiver, response);
}
}
if (this.responseIsSuccess()) {
if (this.onComplete)
setTimeout(this.onComplete.bind(this), 10);
}
}
});
Ajax.PeriodicalUpdater = Class.create();
Ajax.PeriodicalUpdater.prototype = Object.extend(new Ajax.Base(), {
initialize: function(container, url, options) {
this.setOptions(options);
this.onComplete = this.options.onComplete;
this.frequency = (this.options.frequency || 2);
this.decay = (this.options.decay || 1);
this.updater = {};
this.container = container;
this.url = url;
this.start();
},
start: function() {
this.options.onComplete = this.updateComplete.bind(this);
this.onTimerEvent();
},
stop: function() {
this.updater.onComplete = undefined;
clearTimeout(this.timer);
(this.onComplete || Prototype.emptyFunction).apply(this, arguments);
},
updateComplete: function(request) {
if (this.options.decay) {
this.decay = (request.responseText == this.lastText ?
this.decay * this.options.decay : 1);
this.lastText = request.responseText;
}
this.timer = setTimeout(this.onTimerEvent.bind(this),
this.decay * this.frequency * 1000);
},
onTimerEvent: function() {
this.updater = new Ajax.Updater(this.container, this.url, this.options);
}
});
function $() {
var results = [], element;
for (var i = 0; i < arguments.length; i++) {
element = arguments[i];
if (typeof element == 'string')
element = document.getElementById(element);
results.push(Element.extend(element));
}
return results.length < 2 ? results[0] : results;
}
document.getElementsByClassName = function(className, parentElement) {
var children = ($(parentElement) || document.body).getElementsByTagName('*');
return $A(children).inject([], function(elements, child) {
if (child.className.match(new RegExp("(^|\\s)" + className + "(\\s|$)")))
elements.push(Element.extend(child));
return elements;
});
}
if (!window.Element)
var Element = new Object();
Element.extend = function(element) {
if (!element) return;
if (_nativeExtensions) return element;
if (!element._extended && element.tagName && element != window) {
var methods = Element.Methods, cache = Element.extend.cache;
for (property in methods) {
var value = methods[property];
if (typeof value == 'function')
element[property] = cache.findOrStore(value);
}
}
element._extended = true;
return element;
}
Element.extend.cache = {
findOrStore: function(value) {
return this[value] = this[value] || function() {
return value.apply(null, [this].concat($A(arguments)));
}
}
}
Element.Methods = {
visible: function(element) {
return $(element).style.display != 'none';
},
toggle: function() {
for (var i = 0; i < arguments.length; i++) {
var element = $(arguments[i]);
Element[Element.visible(element) ? 'hide' : 'show'](element);
}
},
hide: function() {
for (var i = 0; i < arguments.length; i++) {
var element = $(arguments[i]);
element.style.display = 'none';
}
},
show: function() {
for (var i = 0; i < arguments.length; i++) {
var element = $(arguments[i]);
element.style.display = '';
}
},
remove: function(element) {
element = $(element);
element.parentNode.removeChild(element);
},
showTitle: function(element) {
if ($("tooltip")) Element.removeTitle($("tooltip"));
var title = Builder.node('span', {style:'display:none', id:'tooltip', onclick:'Element.removeTitle (this)'}, [
Builder.node('b',element.title),
Builder.node('em',element.rel)
]);
element.parentNode.insertBefore(title, element.nextSibling);
Effect.Appear(title, {duration: 0.3});
},
removeTitle: function(element) {
Effect.Fade(element, {afterFinish:function() {Element.remove(element)},duration:0.3});
},
//--------------------------------------
update: function(element, html) {
$(element).innerHTML = html.stripScripts();
setTimeout(function() {html.evalScripts()}, 10);
},
replace: function(element, html) {
element = $(element);
if (element.outerHTML) {
element.outerHTML = html.stripScripts();
} else {
var range = element.ownerDocument.createRange();
range.selectNodeContents(element);
element.parentNode.replaceChild(
range.createContextualFragment(html.stripScripts()), element);
}
setTimeout(function() {html.evalScripts()}, 10);
},
getHeight: function(element) {
element = $(element);
return element.offsetHeight;
},
classNames: function(element) {
return new Element.ClassNames(element);
},
hasClassName: function(element, className) {
if (!(element = $(element))) return;
return Element.classNames(element).include(className);
},
addClassName: function(element, className) {
if (!(element = $(element))) return;
return Element.classNames(element).add(className);
},
removeClassName: function(element, className) {
if (!(element = $(element))) return;
return Element.classNames(element).remove(className);
},
// removes whitespace-only text node children
cleanWhitespace: function(element) {
element = $(element);
for (var i = 0; i < element.childNodes.length; i++) {
var node = element.childNodes[i];
if (node.nodeType == 3 && !/\S/.test(node.nodeValue))
Element.remove(node);
}
},
empty: function(element) {
return $(element).innerHTML.match(/^\s*$/);
},
childOf: function(element, ancestor) {
element = $(element), ancestor = $(ancestor);
while (element = element.parentNode)
if (element == ancestor) return true;
return false;
},
scrollTo: function(element) {
element = $(element);
var x = element.x ? element.x : element.offsetLeft,
y = element.y ? element.y : element.offsetTop;
window.scrollTo(x, y);
},
getStyle: function(element, style) {
element = $(element);
var value = element.style[style.camelize()];
if (!value) {
if (document.defaultView && document.defaultView.getComputedStyle) {
var css = document.defaultView.getComputedStyle(element, null);
value = css ? css.getPropertyValue(style) : null;
} else if (element.currentStyle) {
value = element.currentStyle[style.camelize()];
}
}
if (window.opera && ['left', 'top', 'right', 'bottom'].include(style))
if (Element.getStyle(element, 'position') == 'static') value = 'auto';
return value == 'auto' ? null : value;
},
setStyle: function(element, style) {
element = $(element);
for (var name in style)
element.style[name.camelize()] = style[name];
},
getDimensions: function(element) {
element = $(element);
if (Element.getStyle(element, 'display') != 'none')
return {width: element.offsetWidth, height: element.offsetHeight};
// All *Width and *Height properties give 0 on elements with display none,
// so enable the element temporarily
var els = element.style;
var originalVisibility = els.visibility;
var originalPosition = els.position;
els.visibility = 'hidden';
els.position = 'absolute';
els.display = '';
var originalWidth = element.clientWidth;
var originalHeight = element.clientHeight;
els.display = 'none';
els.position = originalPosition;
els.visibility = originalVisibility;
return {width: originalWidth, height: originalHeight};
},
makePositioned: function(element) {
element = $(element);
var pos = Element.getStyle(element, 'position');
if (pos == 'static' || !pos) {
element._madePositioned = true;
element.style.position = 'relative';
// Opera returns the offset relative to the positioning context, when an
// element is position relative but top and left have not been defined
if (window.opera) {
element.style.top = 0;
element.style.left = 0;
}
}
},
undoPositioned: function(element) {
element = $(element);
if (element._madePositioned) {
element._madePositioned = undefined;
element.style.position =
element.style.top =
element.style.left =
element.style.bottom =
element.style.right = '';
}
},
makeClipping: function(element) {
element = $(element);
if (element._overflow) return;
element._overflow = element.style.overflow;
if ((Element.getStyle(element, 'overflow') || 'visible') != 'hidden')
element.style.overflow = 'hidden';
},
undoClipping: function(element) {
element = $(element);
if (element._overflow) return;
element.style.overflow = element._overflow;
element._overflow = undefined;
}
}
Object.extend(Element, Element.Methods);
var _nativeExtensions = false;
if(!HTMLElement && /Konqueror|Safari|KHTML/.test(navigator.userAgent)) {
var HTMLElement = {}
HTMLElement.prototype = document.createElement('div').__proto__;
}
Element.addMethods = function(methods) {
Object.extend(Element.Methods, methods || {});
if(typeof HTMLElement != 'undefined') {
var methods = Element.Methods, cache = Element.extend.cache;
for (property in methods) {
var value = methods[property];
if (typeof value == 'function')
HTMLElement.prototype[property] = cache.findOrStore(value);
}
_nativeExtensions = true;
}
}
Element.addMethods();
var Toggle = new Object();
Toggle.display = Element.toggle;
Element.ClassNames = Class.create();
Element.ClassNames.prototype = {
initialize: function(element) {
this.element = $(element);
},
_each: function(iterator) {
this.element.className.split(/\s+/).select(function(name) {
return name.length > 0;
})._each(iterator);
},
set: function(className) {
this.element.className = className;
},
add: function(classNameToAdd) {
if (this.include(classNameToAdd)) return;
this.set(this.toArray().concat(classNameToAdd).join(' '));
},
remove: function(classNameToRemove) {
if (!this.include(classNameToRemove)) return;
this.set(this.select(function(className) {
return className != classNameToRemove;
}).join(' '));
},
toString: function() {
return this.toArray().join(' ');
}
}
Object.extend(Element.ClassNames.prototype, Enumerable);
var Selector = Class.create();
Selector.prototype = {
initialize: function(expression) {
this.params = {classNames: []};
this.expression = expression.toString().strip();
this.parseExpression();
this.compileMatcher();
},
parseExpression: function() {
function abort(message) { throw 'Parse error in selector: ' + message; }
if (this.expression == '') abort('empty expression');
var params = this.params, expr = this.expression, match, modifier, clause, rest;
while (match = expr.match(/^(.*)\[([a-z0-9_:-]+?)(?:([~\|!]?=)(?:"([^"]*)"|([^\]\s]*)))?\]$/i)) {
params.attributes = params.attributes || [];
params.attributes.push({name: match[2], operator: match[3], value: match[4] || match[5] || ''});
expr = match[1];
}
if (expr == '*') return this.params.wildcard = true;
while (match = expr.match(/^([^a-z0-9_-])?([a-z0-9_-]+)(.*)/i)) {
modifier = match[1], clause = match[2], rest = match[3];
switch (modifier) {
case '#': params.id = clause; break;
case '.': params.classNames.push(clause); break;
case '':
case undefined: params.tagName = clause.toUpperCase(); break;
default: abort(expr.inspect());
}
expr = rest;
}
if (expr.length > 0) abort(expr.inspect());
},
buildMatchExpression: function() {
var params = this.params, conditions = [], clause;
if (params.wildcard)
conditions.push('true');
if (clause = params.id)
conditions.push('element.id == ' + clause.inspect());
if (clause = params.tagName)
conditions.push('element.tagName.toUpperCase() == ' + clause.inspect());
if ((clause = params.classNames).length > 0)
for (var i = 0; i < clause.length; i++)
conditions.push('Element.hasClassName(element, ' + clause[i].inspect() + ')');
if (clause = params.attributes) {
clause.each(function(attribute) {
var value = 'element.getAttribute(' + attribute.name.inspect() + ')';
var splitValueBy = function(delimiter) {
return value + ' && ' + value + '.split(' + delimiter.inspect() + ')';
}
switch (attribute.operator) {
case '=': conditions.push(value + ' == ' + attribute.value.inspect()); break;
case '~=': conditions.push(splitValueBy(' ') + '.include(' + attribute.value.inspect() + ')'); break;
case '|=': conditions.push(
splitValueBy('-') + '.first().toUpperCase() == ' + attribute.value.toUpperCase().inspect()
); break;
case '!=': conditions.push(value + ' != ' + attribute.value.inspect()); break;
case '':
case undefined: conditions.push(value + ' != null'); break;
default: throw 'Unknown operator ' + attribute.operator + ' in selector';
}
});
}
return conditions.join(' && ');
},
compileMatcher: function() {
this.match = new Function('element', 'if (!element.tagName) return false; \
return ' + this.buildMatchExpression());
},
findElements: function(scope) {
var element;
if (element = $(this.params.id))
if (this.match(element))
if (!scope || Element.childOf(element, scope))
return [element];
scope = (scope || document).getElementsByTagName(this.params.tagName || '*');
var results = [];
for (var i = 0; i < scope.length; i++)
if (this.match(element = scope[i]))
results.push(Element.extend(element));
return results;
},
toString: function() {
return this.expression;
}
}
function $$() {
return $A(arguments).map(function(expression) {
return expression.strip().split(/\s+/).inject([null], function(results, expr) {
var selector = new Selector(expr);
return results.map(selector.findElements.bind(selector)).flatten();
});
}).flatten();
}
/*--------------------------------------------------------------------------*/
Abstract.EventObserver = function() {}
Abstract.EventObserver.prototype = {
initialize: function(element, callback) {
this.element = $(element);
this.callback = callback;
this.lastValue = this.getValue();
if (this.element.tagName.toLowerCase() == 'form')
this.registerFormCallbacks();
else
this.registerCallback(this.element);
},
onElementEvent: function() {
var value = this.getValue();
if (this.lastValue != value) {
this.callback(this.element, value);
this.lastValue = value;
}
},
registerFormCallbacks: function() {
var elements = Form.getElements(this.element);
for (var i = 0; i < elements.length; i++)
this.registerCallback(elements[i]);
},
registerCallback: function(element) {
if (element.type) {
switch (element.type.toLowerCase()) {
case 'checkbox':
case 'radio':
Event.observe(element, 'click', this.onElementEvent.bind(this));
break;
case 'password':
case 'text':
case 'textarea':
case 'select-one':
case 'select-multiple':
Event.observe(element, 'change', this.onElementEvent.bind(this));
break;
}
}
}
}
if (!window.Event) {
var Event = new Object();
}
Object.extend(Event, {
KEY_BACKSPACE: 8,
KEY_TAB: 9,
KEY_RETURN: 13,
KEY_ESC: 27,
KEY_LEFT: 37,
KEY_UP: 38,
KEY_RIGHT: 39,
KEY_DOWN: 40,
KEY_DELETE: 46,
element: function(event) {
return event.target || event.srcElement;
},
isLeftClick: function(event) {
return (((event.which) && (event.which == 1)) ||
((event.button) && (event.button == 1)));
},
pointerX: function(event) {
return event.pageX || (event.clientX +
(document.documentElement.scrollLeft || document.body.scrollLeft));
},
pointerY: function(event) {
return event.pageY || (event.clientY +
(document.documentElement.scrollTop || document.body.scrollTop));
},
stop: function(event) {
if (event.preventDefault) {
event.preventDefault();
event.stopPropagation();
} else {
event.returnValue = false;
event.cancelBubble = true;
}
},
// find the first node with the given tagName, starting from the
// node the event was triggered on; traverses the DOM upwards
findElement: function(event, tagName) {
var element = Event.element(event);
while (element.parentNode && (!element.tagName ||
(element.tagName.toUpperCase() != tagName.toUpperCase())))
element = element.parentNode;
return element;
},
observers: false,
_observeAndCache: function(element, name, observer, useCapture) {
if (!this.observers) this.observers = [];
if (element.addEventListener) {
this.observers.push([element, name, observer, useCapture]);
element.addEventListener(name, observer, useCapture);
} else if (element.attachEvent) {
this.observers.push([element, name, observer, useCapture]);
element.attachEvent('on' + name, observer);
}
},
unloadCache: function() {
if (!Event.observers) return;
for (var i = 0; i < Event.observers.length; i++) {
Event.stopObserving.apply(this, Event.observers[i]);
Event.observers[i][0] = null;
}
Event.observers = false;
},
observe: function(element, name, observer, useCapture) {
var element = $(element);
useCapture = useCapture || false;
if (name == 'keypress' &&
(navigator.appVersion.match(/Konqueror|Safari|KHTML/)
|| element.attachEvent))
name = 'keydown';
this._observeAndCache(element, name, observer, useCapture);
},
stopObserving: function(element, name, observer, useCapture) {
var element = $(element);
useCapture = useCapture || false;
if (name == 'keypress' &&
(navigator.appVersion.match(/Konqueror|Safari|KHTML/)
|| element.detachEvent))
name = 'keydown';
if (element.removeEventListener) {
element.removeEventListener(name, observer, useCapture);
} else if (element.detachEvent) {
element.detachEvent('on' + name, observer);
}
}
});
/* prevent memory leaks in IE */
if (navigator.appVersion.match(/\bMSIE\b/))
Event.observe(window, 'unload', Event.unloadCache, false);
var Position = {
// set to true if needed, warning: firefox performance problems
// NOT neeeded for page scrolling, only if draggable contained in
// scrollable elements
includeScrollOffsets: false,
// must be called before calling withinIncludingScrolloffset, every time the
// page is scrolled
prepare: function() {
this.deltaX = window.pageXOffset
|| document.documentElement.scrollLeft
|| document.body.scrollLeft
|| 0;
this.deltaY = window.pageYOffset
|| document.documentElement.scrollTop
|| document.body.scrollTop
|| 0;
},
realOffset: function(element) {
var valueT = 0, valueL = 0;
do {
valueT += element.scrollTop || 0;
valueL += element.scrollLeft || 0;
element = element.parentNode;
} while (element);
return [valueL, valueT];
},
cumulativeOffset: function(element) {
var valueT = 0, valueL = 0;
do {
valueT += element.offsetTop || 0;
valueL += element.offsetLeft || 0;
element = element.offsetParent;
} while (element);
return [valueL, valueT];
},
positionedOffset: function(element) {
var valueT = 0, valueL = 0;
do {
valueT += element.offsetTop || 0;
valueL += element.offsetLeft || 0;
element = element.offsetParent;
if (element) {
p = Element.getStyle(element, 'position');
if (p == 'relative' || p == 'absolute') break;
}
} while (element);
return [valueL, valueT];
},
offsetParent: function(element) {
if (element.offsetParent) return element.offsetParent;
if (element == document.body) return element;
while ((element = element.parentNode) && element != document.body)
if (Element.getStyle(element, 'position') != 'static')
return element;
return document.body;
},
// caches x/y coordinate pair to use with overlap
within: function(element, x, y) {
if (this.includeScrollOffsets)
return this.withinIncludingScrolloffsets(element, x, y);
this.xcomp = x;
this.ycomp = y;
this.offset = this.cumulativeOffset(element);
return (y >= this.offset[1] &&
y < this.offset[1] + element.offsetHeight &&
x >= this.offset[0] &&
x < this.offset[0] + element.offsetWidth);
},
withinIncludingScrolloffsets: function(element, x, y) {
var offsetcache = this.realOffset(element);
this.xcomp = x + offsetcache[0] - this.deltaX;
this.ycomp = y + offsetcache[1] - this.deltaY;
this.offset = this.cumulativeOffset(element);
return (this.ycomp >= this.offset[1] &&
this.ycomp < this.offset[1] + element.offsetHeight &&
this.xcomp >= this.offset[0] &&
this.xcomp < this.offset[0] + element.offsetWidth);
},
// within must be called directly before
overlap: function(mode, element) {
if (!mode) return 0;
if (mode == 'vertical')
return ((this.offset[1] + element.offsetHeight) - this.ycomp) /
element.offsetHeight;
if (mode == 'horizontal')
return ((this.offset[0] + element.offsetWidth) - this.xcomp) /
element.offsetWidth;
},
clone: function(source, target) {
source = $(source);
target = $(target);
target.style.position = 'absolute';
var offsets = this.cumulativeOffset(source);
target.style.top = offsets[1] + 'px';
target.style.left = offsets[0] + 'px';
target.style.width = source.offsetWidth + 'px';
target.style.height = source.offsetHeight + 'px';
},
page: function(forElement) {
var valueT = 0, valueL = 0;
var element = forElement;
do {
valueT += element.offsetTop || 0;
valueL += element.offsetLeft || 0;
// Safari fix
if (element.offsetParent==document.body)
if (Element.getStyle(element,'position')=='absolute') break;
} while (element = element.offsetParent);
element = forElement;
do {
valueT -= element.scrollTop || 0;
valueL -= element.scrollLeft || 0;
} while (element = element.parentNode);
return [valueL, valueT];
},
clone: function(source, target) {
var options = Object.extend({
setLeft: true,
setTop: true,
setWidth: true,
setHeight: true,
offsetTop: 0,
offsetLeft: 0
}, arguments[2] || {})
// find page position of source
source = $(source);
var p = Position.page(source);
// find coordinate system to use
target = $(target);
var delta = [0, 0];
var parent = null;
// delta [0,0] will do fine with position: fixed elements,
// position:absolute needs offsetParent deltas
if (Element.getStyle(target,'position') == 'absolute') {
parent = Position.offsetParent(target);
delta = Position.page(parent);
}
// correct by body offsets (fixes Safari)
if (parent == document.body) {
delta[0] -= document.body.offsetLeft;
delta[1] -= document.body.offsetTop;
}
// set position
if(options.setLeft) target.style.left = (p[0] - delta[0] + options.offsetLeft) + 'px';
if(options.setTop) target.style.top = (p[1] - delta[1] + options.offsetTop) + 'px';
if(options.setWidth) target.style.width = source.offsetWidth + 'px';
if(options.setHeight) target.style.height = source.offsetHeight + 'px';
},
absolutize: function(element) {
element = $(element);
if (element.style.position == 'absolute') return;
Position.prepare();
var offsets = Position.positionedOffset(element);
var top = offsets[1];
var left = offsets[0];
var width = element.clientWidth;
var height = element.clientHeight;
element._originalLeft = left - parseFloat(element.style.left || 0);
element._originalTop = top - parseFloat(element.style.top || 0);
element._originalWidth = element.style.width;
element._originalHeight = element.style.height;
element.style.position = 'absolute';
element.style.top = top + 'px';;
element.style.left = left + 'px';;
element.style.width = width + 'px';;
element.style.height = height + 'px';;
},
relativize: function(element) {
element = $(element);
if (element.style.position == 'relative') return;
Position.prepare();
element.style.position = 'relative';
var top = parseFloat(element.style.top || 0) - (element._originalTop || 0);
var left = parseFloat(element.style.left || 0) - (element._originalLeft || 0);
element.style.top = top + 'px';
element.style.left = left + 'px';
element.style.height = element._originalHeight;
element.style.width = element._originalWidth;
}
}
// Safari returns margins on body which is incorrect if the child is absolutely
// positioned. For performance reasons, redefine Position.cumulativeOffset for
// KHTML/WebKit only.
if (/Konqueror|Safari|KHTML/.test(navigator.userAgent)) {
Position.cumulativeOffset = function(element) {
var valueT = 0, valueL = 0;
do {
valueT += element.offsetTop || 0;
valueL += element.offsetLeft || 0;
if (element.offsetParent == document.body)
if (Element.getStyle(element, 'position') == 'absolute') break;
element = element.offsetParent;
} while (element);
return [valueL, valueT];
}
}
// Copyright (c) 2005 Thomas Fuchs (http://script.aculo.us, http://mir.aculo.us)
// Contributors:
// Justin Palmer (http://encytemedia.com/)
// Mark Pilgrim (http://diveintomark.org/)
// Martin Bialasinki
//
// See scriptaculous.js for full license.
// converts rgb() and #xxx to #xxxxxx format,
// returns self (or first argument) if not convertable
String.prototype.parseColor = function() {
var color = '#';
if(this.slice(0,4) == 'rgb(') {
var cols = this.slice(4,this.length-1).split(',');
var i=0; do { color += parseInt(cols[i]).toColorPart() } while (++i<3);
} else {
if(this.slice(0,1) == '#') {
if(this.length==4) for(var i=1;i<4;i++) color += (this.charAt(i) + this.charAt(i)).toLowerCase();
if(this.length==7) color = this.toLowerCase();
}
}
return(color.length==7 ? color : (arguments[0] || this));
}
/*--------------------------------------------------------------------------*/
Element.collectTextNodes = function(element) {
return $A($(element).childNodes).collect( function(node) {
return (node.nodeType==3 ? node.nodeValue :
(node.hasChildNodes() ? Element.collectTextNodes(node) : ''));
}).flatten().join('');
}
Element.collectTextNodesIgnoreClass = function(element, className) {
return $A($(element).childNodes).collect( function(node) {
return (node.nodeType==3 ? node.nodeValue :
((node.hasChildNodes() && !Element.hasClassName(node,className)) ?
Element.collectTextNodesIgnoreClass(node, className) : ''));
}).flatten().join('');
}
Element.setContentZoom = function(element, percent) {
element = $(element);
Element.setStyle(element, {fontSize: (percent/100) + 'em'});
if(navigator.appVersion.indexOf('AppleWebKit')>0) window.scrollBy(0,0);
}
Element.getOpacity = function(element){
var opacity;
if (opacity = Element.getStyle(element, 'opacity'))
return parseFloat(opacity);
if (opacity = (Element.getStyle(element, 'filter') || '').match(/alpha\(opacity=(.*)\)/))
if(opacity[1]) return parseFloat(opacity[1]) / 100;
return 1.0;
}
Element.setOpacity = function(element, value){
element= $(element);
if (value == 1){
Element.setStyle(element, { opacity:
(/Gecko/.test(navigator.userAgent) && !/Konqueror|Safari|KHTML/.test(navigator.userAgent)) ?
0.999999 : null });
if(/MSIE/.test(navigator.userAgent))
Element.setStyle(element, {filter: Element.getStyle(element,'filter').replace(/alpha\([^\)]*\)/gi,'')});
} else {
if(value < 0.00001) value = 0;
Element.setStyle(element, {opacity: value});
if(/MSIE/.test(navigator.userAgent))
Element.setStyle(element,
{ filter: Element.getStyle(element,'filter').replace(/alpha\([^\)]*\)/gi,'') +
'alpha(opacity='+value*100+')' });
}
}
Element.getInlineOpacity = function(element){
return $(element).style.opacity || '';
}
Element.childrenWithClassName = function(element, className, findFirst) {
var classNameRegExp = new RegExp("(^|\\s)" + className + "(\\s|$)");
var results = $A($(element).getElementsByTagName('*'))[findFirst ? 'detect' : 'select']( function(c) {
return (c.className && c.className.match(classNameRegExp));
});
if(!results) results = [];
return results;
}
Element.forceRerendering = function(element) {
try {
element = $(element);
var n = document.createTextNode(' ');
element.appendChild(n);
element.removeChild(n);
} catch(e) { }
};
/*--------------------------------------------------------------------------*/
var Effect = {
tagifyText: function(element) {
if(typeof Builder == 'undefined')
throw("Effect.tagifyText requires including script.aculo.us' builder.js library");
var tagifyStyle = 'position:relative';
if(/MSIE/.test(navigator.userAgent)) tagifyStyle += ';zoom:1';
element = $(element);
$A(element.childNodes).each( function(child) {
if(child.nodeType==3) {
child.nodeValue.toArray().each( function(character) {
element.insertBefore(
Builder.node('span',{style: tagifyStyle},
character == ' ' ? String.fromCharCode(160) : character),
child);
});
Element.remove(child);
}
});
},
multiple: function(element, effect) {
var elements;
if(((typeof element == 'object') ||
(typeof element == 'function')) &&
(element.length))
elements = element;
else
elements = $(element).childNodes;
var options = Object.extend({
speed: 0.1,
delay: 0.0
}, arguments[2] || {});
var masterDelay = options.delay;
$A(elements).each( function(element, index) {
new effect(element, Object.extend(options, { delay: index * options.speed + masterDelay }));
});
},
PAIRS: {
'slide': ['SlideDown','SlideUp'],
'blind': ['BlindDown','BlindUp'],
'appear': ['Appear','Fade']
},
toggle: function(element, effect) {
element = $(element);
effect = (effect || 'appear').toLowerCase();
var options = Object.extend({
queue: { position:'end', scope:(element.id || 'global'), limit: 1 }
}, arguments[2] || {});
Effect[element.visible() ?
Effect.PAIRS[effect][1] : Effect.PAIRS[effect][0]](element, options);
}
};
var Effect2 = Effect; // deprecated
/* ------------- transitions ------------- */
Effect.Transitions = {}
Effect.Transitions.linear = Prototype.K;
Effect.Transitions.sinoidal = function(pos) {
return (-Math.cos(pos*Math.PI)/2) + 0.5;
}
Effect.Transitions.reverse = function(pos) {
return 1-pos;
}
Effect.Transitions.flicker = function(pos) {
return ((-Math.cos(pos*Math.PI)/4) + 0.75) + Math.random()/4;
}
Effect.Transitions.wobble = function(pos) {
return (-Math.cos(pos*Math.PI*(9*pos))/2) + 0.5;
}
Effect.Transitions.pulse = function(pos) {
return (Math.floor(pos*10) % 2 == 0 ?
(pos*10-Math.floor(pos*10)) : 1-(pos*10-Math.floor(pos*10)));
}
Effect.Transitions.none = function(pos) {
return 0;
}
Effect.Transitions.full = function(pos) {
return 1;
}
/* ------------- core effects ------------- */
Effect.ScopedQueue = Class.create();
Object.extend(Object.extend(Effect.ScopedQueue.prototype, Enumerable), {
initialize: function() {
this.effects = [];
this.interval = null;
},
_each: function(iterator) {
this.effects._each(iterator);
},
add: function(effect) {
var timestamp = new Date().getTime();
var position = (typeof effect.options.queue == 'string') ?
effect.options.queue : effect.options.queue.position;
switch(position) {
case 'front':
// move unstarted effects after this effect
this.effects.findAll(function(e){ return e.state=='idle' }).each( function(e) {
e.startOn += effect.finishOn;
e.finishOn += effect.finishOn;
});
break;
case 'end':
// start effect after last queued effect has finished
timestamp = this.effects.pluck('finishOn').max() || timestamp;
break;
}
effect.startOn += timestamp;
effect.finishOn += timestamp;
if(!effect.options.queue.limit || (this.effects.length < effect.options.queue.limit))
this.effects.push(effect);
if(!this.interval)
this.interval = setInterval(this.loop.bind(this), 40);
},
remove: function(effect) {
this.effects = this.effects.reject(function(e) { return e==effect });
if(this.effects.length == 0) {
clearInterval(this.interval);
this.interval = null;
}
},
loop: function() {
var timePos = new Date().getTime();
this.effects.invoke('loop', timePos);
}
});
Effect.Queues = {
instances: $H(),
get: function(queueName) {
if(typeof queueName != 'string') return queueName;
if(!this.instances[queueName])
this.instances[queueName] = new Effect.ScopedQueue();
return this.instances[queueName];
}
}
Effect.Queue = Effect.Queues.get('global');
Effect.DefaultOptions = {
transition: Effect.Transitions.sinoidal,
duration: 1.0, // seconds
fps: 25.0, // max. 25fps due to Effect.Queue implementation
sync: false, // true for combining
from: 0.0,
to: 1.0,
delay: 0.0,
queue: 'parallel'
}
Effect.Base = function() {};
Effect.Base.prototype = {
position: null,
start: function(options) {
this.options = Object.extend(Object.extend({},Effect.DefaultOptions), options || {});
this.currentFrame = 0;
this.state = 'idle';
this.startOn = this.options.delay*1000;
this.finishOn = this.startOn + (this.options.duration*1000);
this.event('beforeStart');
if(!this.options.sync)
Effect.Queues.get(typeof this.options.queue == 'string' ?
'global' : this.options.queue.scope).add(this);
},
loop: function(timePos) {
if(timePos >= this.startOn) {
if(timePos >= this.finishOn) {
this.render(1.0);
this.cancel();
this.event('beforeFinish');
if(this.finish) this.finish();
this.event('afterFinish');
return;
}
var pos = (timePos - this.startOn) / (this.finishOn - this.startOn);
var frame = Math.round(pos * this.options.fps * this.options.duration);
if(frame > this.currentFrame) {
this.render(pos);
this.currentFrame = frame;
}
}
},
render: function(pos) {
if(this.state == 'idle') {
this.state = 'running';
this.event('beforeSetup');
if(this.setup) this.setup();
this.event('afterSetup');
}
if(this.state == 'running') {
if(this.options.transition) pos = this.options.transition(pos);
pos *= (this.options.to-this.options.from);
pos += this.options.from;
this.position = pos;
this.event('beforeUpdate');
if(this.update) this.update(pos);
this.event('afterUpdate');
}
},
cancel: function() {
if(!this.options.sync)
Effect.Queues.get(typeof this.options.queue == 'string' ?
'global' : this.options.queue.scope).remove(this);
this.state = 'finished';
},
event: function(eventName) {
if(this.options[eventName + 'Internal']) this.options[eventName + 'Internal'](this);
if(this.options[eventName]) this.options[eventName](this);
},
inspect: function() {
return '#<Effect:' + $H(this).inspect() + ',options:' + $H(this.options).inspect() + '>';
}
}
Effect.Opacity = Class.create();
Object.extend(Object.extend(Effect.Opacity.prototype, Effect.Base.prototype), {
initialize: function(element) {
this.element = $(element);
// make this work on IE on elements without 'layout'
if(/MSIE/.test(navigator.userAgent) && (!this.element.currentStyle.hasLayout))
this.element.setStyle({zoom: 1});
var options = Object.extend({
from: this.element.getOpacity() || 0.0,
to: 1.0
}, arguments[1] || {});
this.start(options);
},
update: function(position) {
this.element.setOpacity(position);
}
});
Effect.Move = Class.create();
Object.extend(Object.extend(Effect.Move.prototype, Effect.Base.prototype), {
initialize: function(element) {
this.element = $(element);
var options = Object.extend({
x: 0,
y: 0,
mode: 'relative'
}, arguments[1] || {});
this.start(options);
},
setup: function() {
// Bug in Opera: Opera returns the "real" position of a static element or
// relative element that does not have top/left explicitly set.
// ==> Always set top and left for position relative elements in your stylesheets
// (to 0 if you do not need them)
this.element.makePositioned();
this.originalLeft = parseFloat(this.element.getStyle('left') || '0');
this.originalTop = parseFloat(this.element.getStyle('top') || '0');
if(this.options.mode == 'absolute') {
// absolute movement, so we need to calc deltaX and deltaY
this.options.x = this.options.x - this.originalLeft;
this.options.y = this.options.y - this.originalTop;
}
},
update: function(position) {
this.element.setStyle({
left: Math.round(this.options.x * position + this.originalLeft) + 'px',
top: Math.round(this.options.y * position + this.originalTop) + 'px'
});
}
});
// for backwards compatibility
Effect.MoveBy = function(element, toTop, toLeft) {
return new Effect.Move(element,
Object.extend({ x: toLeft, y: toTop }, arguments[3] || {}));
};
['setOpacity','getOpacity','getInlineOpacity','forceRerendering','setContentZoom',
'collectTextNodes','collectTextNodesIgnoreClass','childrenWithClassName'].each(
function(f) { Element.Methods[f] = Element[f]; }
);
Element.Methods.visualEffect = function(element, effect, options) {
s = effect.gsub(/_/, '-').camelize();
effect_class = s.charAt(0).toUpperCase() + s.substring(1);
new Effect[effect_class](element, options);
return $(element);
};
Element.addMethods();
// Copyright (c) 2005 Thomas Fuchs (http://script.aculo.us, http://mir.aculo.us)
// (c) 2005 Sammi Williams (http://www.oriontransfer.co.nz, sammi@oriontransfer.co.nz)
//
// See scriptaculous.js for full license.
/*--------------------------------------------------------------------------*/
if(typeof Effect == 'undefined')
throw("dragdrop.js requires including script.aculo.us' effects.js library");
var Droppables = {
drops: [],
remove: function(element) {
this.drops = this.drops.reject(function(d) { return d.element==$(element) });
},
add: function(element) {
element = $(element);
var options = Object.extend({
greedy: true,
hoverclass: null,
tree: false
}, arguments[1] || {});
// cache containers
if(options.containment) {
options._containers = [];
var containment = options.containment;
if((typeof containment == 'object') &&
(containment.constructor == Array)) {
containment.each( function(c) { options._containers.push($(c)) });
} else {
options._containers.push($(containment));
}
}
if(options.accept) options.accept = [options.accept].flatten();
Element.makePositioned(element); // fix IE
options.element = element;
this.drops.push(options);
},
findDeepestChild: function(drops) {
deepest = drops[0];
for (i = 1; i < drops.length; ++i)
if (Element.isParent(drops[i].element, deepest.element))
deepest = drops[i];
return deepest;
},
isContained: function(element, drop) {
var containmentNode;
if(drop.tree) {
containmentNode = element.treeNode;
} else {
containmentNode = element.parentNode;
}
return drop._containers.detect(function(c) { return containmentNode == c });
},
isAffected: function(point, element, drop) {
return (
(drop.element!=element) &&
((!drop._containers) ||
this.isContained(element, drop)) &&
((!drop.accept) ||
(Element.classNames(element).detect(
function(v) { return drop.accept.include(v) } ) )) &&
Position.within(drop.element, point[0], point[1]) );
},
deactivate: function(drop) {
if(drop.hoverclass)
Element.removeClassName(drop.element, drop.hoverclass);
this.last_active = null;
},
activate: function(drop) {
if(drop.hoverclass)
Element.addClassName(drop.element, drop.hoverclass);
this.last_active = drop;
},
show: function(point, element) {
if(!this.drops.length) return;
var affected = [];
if(this.last_active) this.deactivate(this.last_active);
this.drops.each( function(drop) {
if(Droppables.isAffected(point, element, drop))
affected.push(drop);
});
if(affected.length>0) {
drop = Droppables.findDeepestChild(affected);
Position.within(drop.element, point[0], point[1]);
if(drop.onHover)
drop.onHover(element, drop.element, Position.overlap(drop.overlap, drop.element));
Droppables.activate(drop);
}
},
fire: function(event, element) {
if(!this.last_active) return;
Position.prepare();
if (this.isAffected([Event.pointerX(event), Event.pointerY(event)], element, this.last_active))
if (this.last_active.onDrop)
this.last_active.onDrop(element, this.last_active.element, event);
},
reset: function() {
if(this.last_active)
this.deactivate(this.last_active);
}
}
var Draggables = {
drags: [],
observers: [],
register: function(draggable) {
if(this.drags.length == 0) {
this.eventMouseUp = this.endDrag.bindAsEventListener(this);
this.eventMouseMove = this.updateDrag.bindAsEventListener(this);
this.eventKeypress = this.keyPress.bindAsEventListener(this);
Event.observe(document, "mouseup", this.eventMouseUp);
Event.observe(document, "mousemove", this.eventMouseMove);
Event.observe(document, "keypress", this.eventKeypress);
}
this.drags.push(draggable);
},
unregister: function(draggable) {
this.drags = this.drags.reject(function(d) { return d==draggable });
if(this.drags.length == 0) {
Event.stopObserving(document, "mouseup", this.eventMouseUp);
Event.stopObserving(document, "mousemove", this.eventMouseMove);
Event.stopObserving(document, "keypress", this.eventKeypress);
}
},
activate: function(draggable) {
window.focus(); // allows keypress events if window isn't currently focused, fails for Safari
this.activeDraggable = draggable;
},
deactivate: function() {
this.activeDraggable = null;
},
updateDrag: function(event) {
if(!this.activeDraggable) return;
var pointer = [Event.pointerX(event), Event.pointerY(event)];
// Mozilla-based browsers fire successive mousemove events with
// the same coordinates, prevent needless redrawing (moz bug?)
if(this._lastPointer && (this._lastPointer.inspect() == pointer.inspect())) return;
this._lastPointer = pointer;
this.activeDraggable.updateDrag(event, pointer);
},
endDrag: function(event) {
if(!this.activeDraggable) return;
this._lastPointer = null;
this.activeDraggable.endDrag(event);
this.activeDraggable = null;
},
keyPress: function(event) {
if(this.activeDraggable)
this.activeDraggable.keyPress(event);
},
addObserver: function(observer) {
this.observers.push(observer);
this._cacheObserverCallbacks();
},
removeObserver: function(element) { // element instead of observer fixes mem leaks
this.observers = this.observers.reject( function(o) { return o.element==element });
this._cacheObserverCallbacks();
},
notify: function(eventName, draggable, event) { // 'onStart', 'onEnd', 'onDrag'
if(this[eventName+'Count'] > 0)
this.observers.each( function(o) {
if(o[eventName]) o[eventName](eventName, draggable, event);
});
},
_cacheObserverCallbacks: function() {
['onStart','onEnd','onDrag'].each( function(eventName) {
Draggables[eventName+'Count'] = Draggables.observers.select(
function(o) { return o[eventName]; }
).length;
});
}
}
var Draggable = Class.create();
Draggable._revertCache = {};
Draggable._dragging = {};
Draggable.prototype = {
initialize: function(element) {
var options = Object.extend({
handle: false,
starteffect: function(element) {
element._opacity = Element.getOpacity(element);
Draggable._dragging[element] = true;
new Effect.Opacity(element, {duration:0.2, from:element._opacity, to:0.7});
},
reverteffect: function(element, top_offset, left_offset) {
var dur = Math.sqrt(Math.abs(top_offset^2)+Math.abs(left_offset^2))*0.02;
Draggable._revertCache[element] =
new Effect.Move(element, { x: -left_offset, y: -top_offset, duration: dur,
queue: {scope:'_draggable', position:'end'}
});
},
endeffect: function(element) {
var toOpacity = typeof element._opacity == 'number' ? element._opacity : 1.0;
new Effect.Opacity(element, {duration:0.2, from:0.7, to:toOpacity,
queue: {scope:'_draggable', position:'end'},
afterFinish: function(){ Draggable._dragging[element] = false }
});
},
zindex: 1000,
revert: false,
scroll: false,
scrollSensitivity: 20,
scrollSpeed: 15,
snap: false // false, or xy or [x,y] or function(x,y){ return [x,y] }
}, arguments[1] || {});
this.element = $(element);
if(options.handle && (typeof options.handle == 'string')) {
var h = Element.childrenWithClassName(this.element, options.handle, true);
if(h.length>0) this.handle = h[0];
}
if(!this.handle) this.handle = $(options.handle);
if(!this.handle) this.handle = this.element;
if(options.scroll && !options.scroll.scrollTo && !options.scroll.outerHTML)
options.scroll = $(options.scroll);
Element.makePositioned(this.element); // fix IE
this.delta = this.currentDelta();
this.options = options;
this.dragging = false;
this.eventMouseDown = this.initDrag.bindAsEventListener(this);
Event.observe(this.handle, "mousedown", this.eventMouseDown);
Draggables.register(this);
},
destroy: function() {
Event.stopObserving(this.handle, "mousedown", this.eventMouseDown);
Draggables.unregister(this);
},
currentDelta: function() {
return([
parseInt(Element.getStyle(this.element,'left') || '0'),
parseInt(Element.getStyle(this.element,'top') || '0')]);
},
initDrag: function(event) {
if(typeof Draggable._dragging[this.element] != undefined &&
Draggable._dragging[this.element]) return;
if(Event.isLeftClick(event)) {
// abort on form elements, fixes a Firefox issue
var src = Event.element(event);
if(src.tagName && (
src.tagName=='INPUT' ||
src.tagName=='SELECT' ||
src.tagName=='OPTION' ||
src.tagName=='BUTTON' ||
src.tagName=='TEXTAREA')) return;
if(Draggable._revertCache[this.element]) {
Draggable._revertCache[this.element].cancel();
Draggable._revertCache[this.element] = null;
}
var pointer = [Event.pointerX(event), Event.pointerY(event)];
var pos = Position.cumulativeOffset(this.element);
this.offset = [0,1].map( function(i) { return (pointer[i] - pos[i]) });
Draggables.activate(this);
Event.stop(event);
}
},
startDrag: function(event) {
this.dragging = true;
if(this.options.zindex) {
this.originalZ = parseInt(Element.getStyle(this.element,'z-index') || 0);
this.element.style.zIndex = this.options.zindex;
}
if(this.options.ghosting) {
this._clone = this.element.cloneNode(true);
Position.absolutize(this.element);
this.element.parentNode.insertBefore(this._clone, this.element);
}
if(this.options.scroll) {
if (this.options.scroll == window) {
var where = this._getWindowScroll(this.options.scroll);
this.originalScrollLeft = where.left;
this.originalScrollTop = where.top;
} else {
this.originalScrollLeft = this.options.scroll.scrollLeft;
this.originalScrollTop = this.options.scroll.scrollTop;
}
}
Draggables.notify('onStart', this, event);
if(this.options.starteffect) this.options.starteffect(this.element);
},
updateDrag: function(event, pointer) {
if(!this.dragging) this.startDrag(event);
Position.prepare();
Droppables.show(pointer, this.element);
Draggables.notify('onDrag', this, event);
this.draw(pointer);
if(this.options.change) this.options.change(this);
if(this.options.scroll) {
this.stopScrolling();
var p;
if (this.options.scroll == window) {
with(this._getWindowScroll(this.options.scroll)) { p = [ left, top, left+width, top+height ]; }
} else {
p = Position.page(this.options.scroll);
p[0] += this.options.scroll.scrollLeft;
p[1] += this.options.scroll.scrollTop;
p.push(p[0]+this.options.scroll.offsetWidth);
p.push(p[1]+this.options.scroll.offsetHeight);
}
var speed = [0,0];
if(pointer[0] < (p[0]+this.options.scrollSensitivity)) speed[0] = pointer[0]-(p[0]+this.options.scrollSensitivity);
if(pointer[1] < (p[1]+this.options.scrollSensitivity)) speed[1] = pointer[1]-(p[1]+this.options.scrollSensitivity);
if(pointer[0] > (p[2]-this.options.scrollSensitivity)) speed[0] = pointer[0]-(p[2]-this.options.scrollSensitivity);
if(pointer[1] > (p[3]-this.options.scrollSensitivity)) speed[1] = pointer[1]-(p[3]-this.options.scrollSensitivity);
this.startScrolling(speed);
}
// fix AppleWebKit rendering
if(navigator.appVersion.indexOf('AppleWebKit')>0) window.scrollBy(0,0);
Event.stop(event);
},
finishDrag: function(event, success) {
this.dragging = false;
if(this.options.ghosting) {
Position.relativize(this.element);
Element.remove(this._clone);
this._clone = null;
}
if(success) Droppables.fire(event, this.element);
Draggables.notify('onEnd', this, event);
var revert = this.options.revert;
if(revert && typeof revert == 'function') revert = revert(this.element);
var d = this.currentDelta();
if(revert && this.options.reverteffect) {
this.options.reverteffect(this.element,
d[1]-this.delta[1], d[0]-this.delta[0]);
} else {
this.delta = d;
}
if(this.options.zindex)
this.element.style.zIndex = this.originalZ;
if(this.options.endeffect)
this.options.endeffect(this.element);
Draggables.deactivate(this);
Droppables.reset();
},
keyPress: function(event) {
if(event.keyCode!=Event.KEY_ESC) return;
this.finishDrag(event, false);
Event.stop(event);
},
endDrag: function(event) {
if(!this.dragging) return;
this.stopScrolling();
this.finishDrag(event, true);
Event.stop(event);
},
draw: function(point) {
var pos = Position.cumulativeOffset(this.element);
var d = this.currentDelta();
pos[0] -= d[0]; pos[1] -= d[1];
if(this.options.scroll && (this.options.scroll != window)) {
pos[0] -= this.options.scroll.scrollLeft-this.originalScrollLeft;
pos[1] -= this.options.scroll.scrollTop-this.originalScrollTop;
}
var p = [0,1].map(function(i){
return (point[i]-pos[i]-this.offset[i])
}.bind(this));
if(this.options.snap) {
if(typeof this.options.snap == 'function') {
p = this.options.snap(p[0],p[1],this);
} else {
if(this.options.snap instanceof Array) {
p = p.map( function(v, i) {
return Math.round(v/this.options.snap[i])*this.options.snap[i] }.bind(this))
} else {
p = p.map( function(v) {
return Math.round(v/this.options.snap)*this.options.snap }.bind(this))
}
}}
var style = this.element.style;
if((!this.options.constraint) || (this.options.constraint=='horizontal'))
style.left = p[0] + "px";
if((!this.options.constraint) || (this.options.constraint=='vertical'))
style.top = p[1] + "px";
if(style.visibility=="hidden") style.visibility = ""; // fix gecko rendering
},
stopScrolling: function() {
if(this.scrollInterval) {
clearInterval(this.scrollInterval);
this.scrollInterval = null;
Draggables._lastScrollPointer = null;
}
},
startScrolling: function(speed) {
if(!(speed[0] || speed[1])) return;
this.scrollSpeed = [speed[0]*this.options.scrollSpeed,speed[1]*this.options.scrollSpeed];
this.lastScrolled = new Date();
this.scrollInterval = setInterval(this.scroll.bind(this), 10);
},
scroll: function() {
var current = new Date();
var delta = current - this.lastScrolled;
this.lastScrolled = current;
if(this.options.scroll == window) {
with (this._getWindowScroll(this.options.scroll)) {
if (this.scrollSpeed[0] || this.scrollSpeed[1]) {
var d = delta / 1000;
this.options.scroll.scrollTo( left + d*this.scrollSpeed[0], top + d*this.scrollSpeed[1] );
}
}
} else {
this.options.scroll.scrollLeft += this.scrollSpeed[0] * delta / 1000;
this.options.scroll.scrollTop += this.scrollSpeed[1] * delta / 1000;
}
Position.prepare();
Droppables.show(Draggables._lastPointer, this.element);
Draggables.notify('onDrag', this);
Draggables._lastScrollPointer = Draggables._lastScrollPointer || $A(Draggables._lastPointer);
Draggables._lastScrollPointer[0] += this.scrollSpeed[0] * delta / 1000;
Draggables._lastScrollPointer[1] += this.scrollSpeed[1] * delta / 1000;
if (Draggables._lastScrollPointer[0] < 0)
Draggables._lastScrollPointer[0] = 0;
if (Draggables._lastScrollPointer[1] < 0)
Draggables._lastScrollPointer[1] = 0;
this.draw(Draggables._lastScrollPointer);
if(this.options.change) this.options.change(this);
},
_getWindowScroll: function(w) {
var T, L, W, H;
with (w.document) {
if (w.document.documentElement && documentElement.scrollTop) {
T = documentElement.scrollTop;
L = documentElement.scrollLeft;
} else if (w.document.body) {
T = body.scrollTop;
L = body.scrollLeft;
}
if (w.innerWidth) {
W = w.innerWidth;
H = w.innerHeight;
} else if (w.document.documentElement && documentElement.clientWidth) {
W = documentElement.clientWidth;
H = documentElement.clientHeight;
} else {
W = body.offsetWidth;
H = body.offsetHeight
}
}
return { top: T, left: L, width: W, height: H };
}
}
/*--------------------------------------------------------------------------*/
var SortableObserver = Class.create();
SortableObserver.prototype = {
initialize: function(element, observer) {
this.element = $(element);
this.observer = observer;
this.lastValue = Sortable.serialize(this.element);
},
onStart: function() {
this.lastValue = Sortable.serialize(this.element);
},
onEnd: function() {
Sortable.unmark();
if(this.lastValue != Sortable.serialize(this.element))
this.observer(this.element)
}
}
var Sortable = {
sortables: {},
_findRootElement: function(element) {
while (element.tagName != "BODY") {
if(element.id && Sortable.sortables[element.id]) return element;
element = element.parentNode;
}
},
options: function(element) {
element = Sortable._findRootElement($(element));
if(!element) return;
return Sortable.sortables[element.id];
},
destroy: function(element){
var s = Sortable.options(element);
if(s) {
Draggables.removeObserver(s.element);
s.droppables.each(function(d){ Droppables.remove(d) });
s.draggables.invoke('destroy');
delete Sortable.sortables[s.element.id];
}
},
create: function(element) {
element = $(element);
var options = Object.extend({
element: element,
tag: 'li', // assumes li children, override with tag: 'tagname'
dropOnEmpty: false,
tree: false,
treeTag: 'ul',
overlap: 'vertical', // one of 'vertical', 'horizontal'
constraint: 'vertical', // one of 'vertical', 'horizontal', false
containment: element, // also takes array of elements (or id's); or false
handle: false, // or a CSS class
only: false,
hoverclass: null,
ghosting: false,
scroll: false,
scrollSensitivity: 20,
scrollSpeed: 15,
format: /^[^_]*_(.*)$/,
onChange: Prototype.emptyFunction,
onUpdate: Prototype.emptyFunction
}, arguments[1] || {});
// clear any old sortable with same element
this.destroy(element);
// build options for the draggables
var options_for_draggable = {
revert: true,
scroll: options.scroll,
scrollSpeed: options.scrollSpeed,
scrollSensitivity: options.scrollSensitivity,
ghosting: options.ghosting,
constraint: options.constraint,
handle: options.handle };
if(options.starteffect)
options_for_draggable.starteffect = options.starteffect;
if(options.reverteffect)
options_for_draggable.reverteffect = options.reverteffect;
else
if(options.ghosting) options_for_draggable.reverteffect = function(element) {
element.style.top = 0;
element.style.left = 0;
};
if(options.endeffect)
options_for_draggable.endeffect = options.endeffect;
if(options.zindex)
options_for_draggable.zindex = options.zindex;
// build options for the droppables
var options_for_droppable = {
overlap: options.overlap,
containment: options.containment,
tree: options.tree,
hoverclass: options.hoverclass,
onHover: Sortable.onHover
//greedy: !options.dropOnEmpty
}
var options_for_tree = {
onHover: Sortable.onEmptyHover,
overlap: options.overlap,
containment: options.containment,
hoverclass: options.hoverclass
}
// fix for gecko engine
Element.cleanWhitespace(element);
options.draggables = [];
options.droppables = [];
// drop on empty handling
if(options.dropOnEmpty || options.tree) {
Droppables.add(element, options_for_tree);
options.droppables.push(element);
}
(this.findElements(element, options) || []).each( function(e) {
// handles are per-draggable
var handle = options.handle ?
Element.childrenWithClassName(e, options.handle)[0] : e;
options.draggables.push(
new Draggable(e, Object.extend(options_for_draggable, { handle: handle })));
Droppables.add(e, options_for_droppable);
if(options.tree) e.treeNode = element;
options.droppables.push(e);
});
if(options.tree) {
(Sortable.findTreeElements(element, options) || []).each( function(e) {
Droppables.add(e, options_for_tree);
e.treeNode = element;
options.droppables.push(e);
});
}
// keep reference
this.sortables[element.id] = options;
// for onupdate
Draggables.addObserver(new SortableObserver(element, options.onUpdate));
},
// return all suitable-for-sortable elements in a guaranteed order
findElements: function(element, options) {
return Element.findChildren(
element, options.only, options.tree ? true : false, options.tag);
},
findTreeElements: function(element, options) {
return Element.findChildren(
element, options.only, options.tree ? true : false, options.treeTag);
},
onHover: function(element, dropon, overlap) {
if(Element.isParent(dropon, element)) return;
if(overlap > .33 && overlap < .66 && Sortable.options(dropon).tree) {
return;
} else if(overlap>0.5) {
Sortable.mark(dropon, 'before');
if(dropon.previousSibling != element) {
var oldParentNode = element.parentNode;
element.style.visibility = "hidden"; // fix gecko rendering
dropon.parentNode.insertBefore(element, dropon);
if(dropon.parentNode!=oldParentNode)
Sortable.options(oldParentNode).onChange(element);
Sortable.options(dropon.parentNode).onChange(element);
}
} else {
Sortable.mark(dropon, 'after');
var nextElement = dropon.nextSibling || null;
if(nextElement != element) {
var oldParentNode = element.parentNode;
element.style.visibility = "hidden"; // fix gecko rendering
dropon.parentNode.insertBefore(element, nextElement);
if(dropon.parentNode!=oldParentNode)
Sortable.options(oldParentNode).onChange(element);
Sortable.options(dropon.parentNode).onChange(element);
}
}
},
onEmptyHover: function(element, dropon, overlap) {
var oldParentNode = element.parentNode;
var droponOptions = Sortable.options(dropon);
if(!Element.isParent(dropon, element)) {
var index;
var children = Sortable.findElements(dropon, {tag: droponOptions.tag, only: droponOptions.only});
var child = null;
if(children) {
var offset = Element.offsetSize(dropon, droponOptions.overlap) * (1.0 - overlap);
for (index = 0; index < children.length; index += 1) {
if (offset - Element.offsetSize (children[index], droponOptions.overlap) >= 0) {
offset -= Element.offsetSize (children[index], droponOptions.overlap);
} else if (offset - (Element.offsetSize (children[index], droponOptions.overlap) / 2) >= 0) {
child = index + 1 < children.length ? children[index + 1] : null;
break;
} else {
child = children[index];
break;
}
}
}
dropon.insertBefore(element, child);
Sortable.options(oldParentNode).onChange(element);
droponOptions.onChange(element);
}
},
unmark: function() {
if(Sortable._marker) Element.hide(Sortable._marker);
},
mark: function(dropon, position) {
// mark on ghosting only
var sortable = Sortable.options(dropon.parentNode);
if(sortable && !sortable.ghosting) return;
if(!Sortable._marker) {
Sortable._marker = $('dropmarker') || document.createElement('DIV');
Element.hide(Sortable._marker);
Element.addClassName(Sortable._marker, 'dropmarker');
Sortable._marker.style.position = 'absolute';
document.getElementsByTagName("body").item(0).appendChild(Sortable._marker);
}
var offsets = Position.cumulativeOffset(dropon);
Sortable._marker.style.left = offsets[0] + 'px';
Sortable._marker.style.top = offsets[1] + 'px';
if(position=='after')
if(sortable.overlap == 'horizontal')
Sortable._marker.style.left = (offsets[0]+dropon.clientWidth) + 'px';
else
Sortable._marker.style.top = (offsets[1]+dropon.clientHeight) + 'px';
Element.show(Sortable._marker);
},
_tree: function(element, options, parent) {
var children = Sortable.findElements(element, options) || [];
for (var i = 0; i < children.length; ++i) {
var match = children[i].id.match(options.format);
if (!match) continue;
var child = {
id: encodeURIComponent(match ? match[1] : null),
element: element,
parent: parent,
children: new Array,
position: parent.children.length,
container: Sortable._findChildrenElement(children[i], options.treeTag.toUpperCase())
}
/* Get the element containing the children and recurse over it */
if (child.container)
this._tree(child.container, options, child)
parent.children.push (child);
}
return parent;
},
/* Finds the first element of the given tag type within a parent element.
Used for finding the first LI[ST] within a L[IST]I[TEM].*/
_findChildrenElement: function (element, containerTag) {
if (element && element.hasChildNodes)
for (var i = 0; i < element.childNodes.length; ++i)
if (element.childNodes[i].tagName == containerTag)
return element.childNodes[i];
return null;
},
tree: function(element) {
element = $(element);
var sortableOptions = this.options(element);
var options = Object.extend({
tag: sortableOptions.tag,
treeTag: sortableOptions.treeTag,
only: sortableOptions.only,
name: element.id,
format: sortableOptions.format
}, arguments[1] || {});
var root = {
id: null,
parent: null,
children: new Array,
container: element,
position: 0
}
return Sortable._tree (element, options, root);
},
/* Construct a [i] index for a particular node */
_constructIndex: function(node) {
var index = '';
do {
if (node.id) index = '[' + node.position + ']' + index;
} while ((node = node.parent) != null);
return index;
},
sequence: function(element) {
element = $(element);
var options = Object.extend(this.options(element), arguments[1] || {});
return $(this.findElements(element, options) || []).map( function(item) {
return item.id.match(options.format) ? item.id.match(options.format)[1] : '';
});
},
setSequence: function(element, new_sequence) {
element = $(element);
var options = Object.extend(this.options(element), arguments[2] || {});
var nodeMap = {};
this.findElements(element, options).each( function(n) {
if (n.id.match(options.format))
nodeMap[n.id.match(options.format)[1]] = [n, n.parentNode];
n.parentNode.removeChild(n);
});
new_sequence.each(function(ident) {
var n = nodeMap[ident];
if (n) {
n[1].appendChild(n[0]);
delete nodeMap[ident];
}
});
},
serialize: function(element) {
element = $(element);
var options = Object.extend(Sortable.options(element), arguments[1] || {});
var name = encodeURIComponent(
(arguments[1] && arguments[1].name) ? arguments[1].name : element.id);
if (options.tree) {
return Sortable.tree(element, arguments[1]).children.map( function (item) {
return [name + Sortable._constructIndex(item) + "[id]=" +
encodeURIComponent(item.id)].concat(item.children.map(arguments.callee));
}).flatten().join('&');
} else {
return Sortable.sequence(element, arguments[1]).map( function(item) {
return name + "[]=" + encodeURIComponent(item);
}).join('&');
}
}
}
/* Returns true if child is contained within element */
Element.isParent = function(child, element) {
if (!child.parentNode || child == element) return false;
if (child.parentNode == element) return true;
return Element.isParent(child.parentNode, element);
}
Element.findChildren = function(element, only, recursive, tagName) {
if(!element.hasChildNodes()) return null;
tagName = tagName.toUpperCase();
if(only) only = [only].flatten();
var elements = [];
$A(element.childNodes).each( function(e) {
if(e.tagName && e.tagName.toUpperCase()==tagName &&
(!only || (Element.classNames(e).detect(function(v) { return only.include(v) }))))
elements.push(e);
if(recursive) {
var grandchildren = Element.findChildren(e, only, recursive, tagName);
if(grandchildren) elements.push(grandchildren);
}
});
return (elements.length>0 ? elements.flatten() : []);
}
Element.offsetSize = function (element, type) {
if (type == 'vertical' || type == 'height')
return element.offsetHeight;
else
return element.offsetWidth;
}