1
/* Prototype JavaScript framework, version 1.6.0.2
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* (c) 2005-2008 Sam Stephenson
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* Prototype is freely distributable under the terms of an MIT-style license.
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* For details, see the Prototype web site: http://www.prototypejs.org/
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*--------------------------------------------------------------------------*/
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IE: !!(window.attachEvent && !window.opera),
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Opera: !!window.opera,
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WebKit: navigator.userAgent.indexOf('AppleWebKit/') > -1,
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Gecko: navigator.userAgent.indexOf('Gecko') > -1 && navigator.userAgent.indexOf('KHTML') == -1,
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MobileSafari: !!navigator.userAgent.match(/Apple.*Mobile.*Safari/)
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XPath: !!document.evaluate,
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ElementExtensions: !!window.HTMLElement,
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SpecificElementExtensions:
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document.createElement('div').__proto__ &&
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document.createElement('div').__proto__ !==
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document.createElement('form').__proto__
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ScriptFragment: '<script[^>]*>([\\S\\s]*?)<\/script>',
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JSONFilter: /^\/\*-secure-([\s\S]*)\*\/\s*$/,
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emptyFunction: function() { },
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K: function(x) { return x }
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if (Prototype.Browser.MobileSafari)
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Prototype.BrowserFeatures.SpecificElementExtensions = false;
40
/* Based on Alex Arnell's inheritance implementation. */
43
var parent = null, properties = $A(arguments);
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if (Object.isFunction(properties[0]))
45
parent = properties.shift();
48
this.initialize.apply(this, arguments);
51
Object.extend(klass, Class.Methods);
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klass.superclass = parent;
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klass.subclasses = [];
56
var subclass = function() { };
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subclass.prototype = parent.prototype;
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klass.prototype = new subclass;
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parent.subclasses.push(klass);
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for (var i = 0; i < properties.length; i++)
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klass.addMethods(properties[i]);
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if (!klass.prototype.initialize)
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klass.prototype.initialize = Prototype.emptyFunction;
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klass.prototype.constructor = klass;
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addMethods: function(source) {
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var ancestor = this.superclass && this.superclass.prototype;
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var properties = Object.keys(source);
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if (!Object.keys({ toString: true }).length)
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properties.push("toString", "valueOf");
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for (var i = 0, length = properties.length; i < length; i++) {
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var property = properties[i], value = source[property];
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if (ancestor && Object.isFunction(value) &&
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value.argumentNames().first() == "$super") {
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var method = value, value = Object.extend((function(m) {
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return function() { return ancestor[m].apply(this, arguments) };
88
})(property).wrap(method), {
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valueOf: function() { return method },
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toString: function() { return method.toString() }
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this.prototype[property] = value;
102
Object.extend = function(destination, source) {
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for (var property in source)
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destination[property] = source[property];
108
Object.extend(Object, {
109
inspect: function(object) {
111
if (Object.isUndefined(object)) return 'undefined';
112
if (object === null) return 'null';
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return object.inspect ? object.inspect() : String(object);
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if (e instanceof RangeError) return '...';
120
toJSON: function(object) {
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var type = typeof object;
125
case 'unknown': return;
126
case 'boolean': return object.toString();
129
if (object === null) return 'null';
130
if (object.toJSON) return object.toJSON();
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if (Object.isElement(object)) return;
134
for (var property in object) {
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var value = Object.toJSON(object[property]);
136
if (!Object.isUndefined(value))
137
results.push(property.toJSON() + ': ' + value);
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return '{' + results.join(', ') + '}';
143
toQueryString: function(object) {
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return $H(object).toQueryString();
147
toHTML: function(object) {
148
return object && object.toHTML ? object.toHTML() : String.interpret(object);
151
keys: function(object) {
153
for (var property in object)
158
values: function(object) {
160
for (var property in object)
161
values.push(object[property]);
165
clone: function(object) {
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return Object.extend({ }, object);
169
isElement: function(object) {
170
return object && object.nodeType == 1;
173
isArray: function(object) {
174
return object != null && typeof object == "object" &&
175
'splice' in object && 'join' in object;
178
isHash: function(object) {
179
return object instanceof Hash;
182
isFunction: function(object) {
183
return typeof object == "function";
186
isString: function(object) {
187
return typeof object == "string";
190
isNumber: function(object) {
191
return typeof object == "number";
194
isUndefined: function(object) {
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return typeof object == "undefined";
199
Object.extend(Function.prototype, {
200
argumentNames: function() {
201
var names = this.toString().match(/^[\s\(]*function[^(]*\((.*?)\)/)[1].split(",").invoke("strip");
202
return names.length == 1 && !names[0] ? [] : names;
206
if (arguments.length < 2 && Object.isUndefined(arguments[0])) return this;
207
var __method = this, args = $A(arguments), object = args.shift();
209
return __method.apply(object, args.concat($A(arguments)));
213
bindAsEventListener: function() {
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var __method = this, args = $A(arguments), object = args.shift();
215
return function(event) {
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return __method.apply(object, [event || window.event].concat(args));
221
if (!arguments.length) return this;
222
var __method = this, args = $A(arguments);
224
return __method.apply(this, args.concat($A(arguments)));
229
var __method = this, args = $A(arguments), timeout = args.shift() * 1000;
230
return window.setTimeout(function() {
231
return __method.apply(__method, args);
235
wrap: function(wrapper) {
238
return wrapper.apply(this, [__method.bind(this)].concat($A(arguments)));
242
methodize: function() {
243
if (this._methodized) return this._methodized;
245
return this._methodized = function() {
246
return __method.apply(null, [this].concat($A(arguments)));
251
Function.prototype.defer = Function.prototype.delay.curry(0.01);
253
Date.prototype.toJSON = function() {
254
return '"' + this.getUTCFullYear() + '-' +
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(this.getUTCMonth() + 1).toPaddedString(2) + '-' +
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this.getUTCDate().toPaddedString(2) + 'T' +
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this.getUTCHours().toPaddedString(2) + ':' +
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this.getUTCMinutes().toPaddedString(2) + ':' +
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this.getUTCSeconds().toPaddedString(2) + 'Z"';
266
for (var i = 0, length = arguments.length; i < length; i++) {
267
var lambda = arguments[i];
269
returnValue = lambda();
278
RegExp.prototype.match = RegExp.prototype.test;
280
RegExp.escape = function(str) {
281
return String(str).replace(/([.*+?^=!:${}()|[\]\/\\])/g, '\\$1');
284
/*--------------------------------------------------------------------------*/
286
var PeriodicalExecuter = Class.create({
287
initialize: function(callback, frequency) {
288
this.callback = callback;
289
this.frequency = frequency;
290
this.currentlyExecuting = false;
292
this.registerCallback();
295
registerCallback: function() {
296
this.timer = setInterval(this.onTimerEvent.bind(this), this.frequency * 1000);
299
execute: function() {
304
if (!this.timer) return;
305
clearInterval(this.timer);
309
onTimerEvent: function() {
310
if (!this.currentlyExecuting) {
312
this.currentlyExecuting = true;
315
this.currentlyExecuting = false;
320
Object.extend(String, {
321
interpret: function(value) {
322
return value == null ? '' : String(value);
334
Object.extend(String.prototype, {
335
gsub: function(pattern, replacement) {
336
var result = '', source = this, match;
337
replacement = arguments.callee.prepareReplacement(replacement);
339
while (source.length > 0) {
340
if (match = source.match(pattern)) {
341
result += source.slice(0, match.index);
342
result += String.interpret(replacement(match));
343
source = source.slice(match.index + match[0].length);
345
result += source, source = '';
351
sub: function(pattern, replacement, count) {
352
replacement = this.gsub.prepareReplacement(replacement);
353
count = Object.isUndefined(count) ? 1 : count;
355
return this.gsub(pattern, function(match) {
356
if (--count < 0) return match[0];
357
return replacement(match);
361
scan: function(pattern, iterator) {
362
this.gsub(pattern, iterator);
366
truncate: function(length, truncation) {
367
length = length || 30;
368
truncation = Object.isUndefined(truncation) ? '...' : truncation;
369
return this.length > length ?
370
this.slice(0, length - truncation.length) + truncation : String(this);
374
return this.replace(/^\s+/, '').replace(/\s+$/, '');
377
stripTags: function() {
378
return this.replace(/<\/?[^>]+>/gi, '');
381
stripScripts: function() {
382
return this.replace(new RegExp(Prototype.ScriptFragment, 'img'), '');
385
extractScripts: function() {
386
var matchAll = new RegExp(Prototype.ScriptFragment, 'img');
387
var matchOne = new RegExp(Prototype.ScriptFragment, 'im');
388
return (this.match(matchAll) || []).map(function(scriptTag) {
389
return (scriptTag.match(matchOne) || ['', ''])[1];
393
evalScripts: function() {
394
return this.extractScripts().map(function(script) { return eval(script) });
397
escapeHTML: function() {
398
var self = arguments.callee;
399
self.text.data = this;
400
return self.div.innerHTML;
403
unescapeHTML: function() {
404
var div = new Element('div');
405
div.innerHTML = this.stripTags();
406
return div.childNodes[0] ? (div.childNodes.length > 1 ?
407
$A(div.childNodes).inject('', function(memo, node) { return memo+node.nodeValue }) :
408
div.childNodes[0].nodeValue) : '';
411
toQueryParams: function(separator) {
412
var match = this.strip().match(/([^?#]*)(#.*)?$/);
413
if (!match) return { };
415
return match[1].split(separator || '&').inject({ }, function(hash, pair) {
416
if ((pair = pair.split('='))[0]) {
417
var key = decodeURIComponent(pair.shift());
418
var value = pair.length > 1 ? pair.join('=') : pair[0];
419
if (value != undefined) value = decodeURIComponent(value);
422
if (!Object.isArray(hash[key])) hash[key] = [hash[key]];
423
hash[key].push(value);
425
else hash[key] = value;
431
toArray: function() {
432
return this.split('');
436
return this.slice(0, this.length - 1) +
437
String.fromCharCode(this.charCodeAt(this.length - 1) + 1);
440
times: function(count) {
441
return count < 1 ? '' : new Array(count + 1).join(this);
444
camelize: function() {
445
var parts = this.split('-'), len = parts.length;
446
if (len == 1) return parts[0];
448
var camelized = this.charAt(0) == '-'
449
? parts[0].charAt(0).toUpperCase() + parts[0].substring(1)
452
for (var i = 1; i < len; i++)
453
camelized += parts[i].charAt(0).toUpperCase() + parts[i].substring(1);
458
capitalize: function() {
459
return this.charAt(0).toUpperCase() + this.substring(1).toLowerCase();
462
underscore: function() {
463
return this.gsub(/::/, '/').gsub(/([A-Z]+)([A-Z][a-z])/,'#{1}_#{2}').gsub(/([a-z\d])([A-Z])/,'#{1}_#{2}').gsub(/-/,'_').toLowerCase();
466
dasherize: function() {
467
return this.gsub(/_/,'-');
470
inspect: function(useDoubleQuotes) {
471
var escapedString = this.gsub(/[\x00-\x1f\\]/, function(match) {
472
var character = String.specialChar[match[0]];
473
return character ? character : '\\u00' + match[0].charCodeAt().toPaddedString(2, 16);
475
if (useDoubleQuotes) return '"' + escapedString.replace(/"/g, '\\"') + '"';
476
return "'" + escapedString.replace(/'/g, '\\\'') + "'";
480
return this.inspect(true);
483
unfilterJSON: function(filter) {
484
return this.sub(filter || Prototype.JSONFilter, '#{1}');
489
if (str.blank()) return false;
490
str = this.replace(/\\./g, '@').replace(/"[^"\\\n\r]*"/g, '');
491
return (/^[,:{}\[\]0-9.\-+Eaeflnr-u \n\r\t]*$/).test(str);
494
evalJSON: function(sanitize) {
495
var json = this.unfilterJSON();
497
if (!sanitize || json.isJSON()) return eval('(' + json + ')');
499
throw new SyntaxError('Badly formed JSON string: ' + this.inspect());
502
include: function(pattern) {
503
return this.indexOf(pattern) > -1;
506
startsWith: function(pattern) {
507
return this.indexOf(pattern) === 0;
510
endsWith: function(pattern) {
511
var d = this.length - pattern.length;
512
return d >= 0 && this.lastIndexOf(pattern) === d;
520
return /^\s*$/.test(this);
523
interpolate: function(object, pattern) {
524
return new Template(this, pattern).evaluate(object);
528
if (Prototype.Browser.WebKit || Prototype.Browser.IE) Object.extend(String.prototype, {
529
escapeHTML: function() {
530
return this.replace(/&/g,'&').replace(/</g,'<').replace(/>/g,'>');
532
unescapeHTML: function() {
533
return this.replace(/&/g,'&').replace(/</g,'<').replace(/>/g,'>');
537
String.prototype.gsub.prepareReplacement = function(replacement) {
538
if (Object.isFunction(replacement)) return replacement;
539
var template = new Template(replacement);
540
return function(match) { return template.evaluate(match) };
543
String.prototype.parseQuery = String.prototype.toQueryParams;
545
Object.extend(String.prototype.escapeHTML, {
546
div: document.createElement('div'),
547
text: document.createTextNode('')
550
with (String.prototype.escapeHTML) div.appendChild(text);
552
var Template = Class.create({
553
initialize: function(template, pattern) {
554
this.template = template.toString();
555
this.pattern = pattern || Template.Pattern;
558
evaluate: function(object) {
559
if (Object.isFunction(object.toTemplateReplacements))
560
object = object.toTemplateReplacements();
562
return this.template.gsub(this.pattern, function(match) {
563
if (object == null) return '';
565
var before = match[1] || '';
566
if (before == '\\') return match[2];
568
var ctx = object, expr = match[3];
569
var pattern = /^([^.[]+|\[((?:.*?[^\\])?)\])(\.|\[|$)/;
570
match = pattern.exec(expr);
571
if (match == null) return before;
573
while (match != null) {
574
var comp = match[1].startsWith('[') ? match[2].gsub('\\\\]', ']') : match[1];
576
if (null == ctx || '' == match[3]) break;
577
expr = expr.substring('[' == match[3] ? match[1].length : match[0].length);
578
match = pattern.exec(expr);
581
return before + String.interpret(ctx);
585
Template.Pattern = /(^|.|\r|\n)(#\{(.*?)\})/;
590
each: function(iterator, context) {
592
iterator = iterator.bind(context);
594
this._each(function(value) {
595
iterator(value, index++);
598
if (e != $break) throw e;
603
eachSlice: function(number, iterator, context) {
604
iterator = iterator ? iterator.bind(context) : Prototype.K;
605
var index = -number, slices = [], array = this.toArray();
606
while ((index += number) < array.length)
607
slices.push(array.slice(index, index+number));
608
return slices.collect(iterator, context);
611
all: function(iterator, context) {
612
iterator = iterator ? iterator.bind(context) : Prototype.K;
614
this.each(function(value, index) {
615
result = result && !!iterator(value, index);
616
if (!result) throw $break;
621
any: function(iterator, context) {
622
iterator = iterator ? iterator.bind(context) : Prototype.K;
624
this.each(function(value, index) {
625
if (result = !!iterator(value, index))
631
collect: function(iterator, context) {
632
iterator = iterator ? iterator.bind(context) : Prototype.K;
634
this.each(function(value, index) {
635
results.push(iterator(value, index));
640
detect: function(iterator, context) {
641
iterator = iterator.bind(context);
643
this.each(function(value, index) {
644
if (iterator(value, index)) {
652
findAll: function(iterator, context) {
653
iterator = iterator.bind(context);
655
this.each(function(value, index) {
656
if (iterator(value, index))
662
grep: function(filter, iterator, context) {
663
iterator = iterator ? iterator.bind(context) : Prototype.K;
666
if (Object.isString(filter))
667
filter = new RegExp(filter);
669
this.each(function(value, index) {
670
if (filter.match(value))
671
results.push(iterator(value, index));
676
include: function(object) {
677
if (Object.isFunction(this.indexOf))
678
if (this.indexOf(object) != -1) return true;
681
this.each(function(value) {
682
if (value == object) {
690
inGroupsOf: function(number, fillWith) {
691
fillWith = Object.isUndefined(fillWith) ? null : fillWith;
692
return this.eachSlice(number, function(slice) {
693
while(slice.length < number) slice.push(fillWith);
698
inject: function(memo, iterator, context) {
699
iterator = iterator.bind(context);
700
this.each(function(value, index) {
701
memo = iterator(memo, value, index);
706
invoke: function(method) {
707
var args = $A(arguments).slice(1);
708
return this.map(function(value) {
709
return value[method].apply(value, args);
713
max: function(iterator, context) {
714
iterator = iterator ? iterator.bind(context) : Prototype.K;
716
this.each(function(value, index) {
717
value = iterator(value, index);
718
if (result == null || value >= result)
724
min: function(iterator, context) {
725
iterator = iterator ? iterator.bind(context) : Prototype.K;
727
this.each(function(value, index) {
728
value = iterator(value, index);
729
if (result == null || value < result)
735
partition: function(iterator, context) {
736
iterator = iterator ? iterator.bind(context) : Prototype.K;
737
var trues = [], falses = [];
738
this.each(function(value, index) {
739
(iterator(value, index) ?
740
trues : falses).push(value);
742
return [trues, falses];
745
pluck: function(property) {
747
this.each(function(value) {
748
results.push(value[property]);
753
reject: function(iterator, context) {
754
iterator = iterator.bind(context);
756
this.each(function(value, index) {
757
if (!iterator(value, index))
763
sortBy: function(iterator, context) {
764
iterator = iterator.bind(context);
765
return this.map(function(value, index) {
766
return {value: value, criteria: iterator(value, index)};
767
}).sort(function(left, right) {
768
var a = left.criteria, b = right.criteria;
769
return a < b ? -1 : a > b ? 1 : 0;
773
toArray: function() {
778
var iterator = Prototype.K, args = $A(arguments);
779
if (Object.isFunction(args.last()))
780
iterator = args.pop();
782
var collections = [this].concat(args).map($A);
783
return this.map(function(value, index) {
784
return iterator(collections.pluck(index));
789
return this.toArray().length;
792
inspect: function() {
793
return '#<Enumerable:' + this.toArray().inspect() + '>';
797
Object.extend(Enumerable, {
798
map: Enumerable.collect,
799
find: Enumerable.detect,
800
select: Enumerable.findAll,
801
filter: Enumerable.findAll,
802
member: Enumerable.include,
803
entries: Enumerable.toArray,
804
every: Enumerable.all,
807
function $A(iterable) {
808
if (!iterable) return [];
809
if (iterable.toArray) return iterable.toArray();
810
var length = iterable.length || 0, results = new Array(length);
811
while (length--) results[length] = iterable[length];
815
if (Prototype.Browser.WebKit) {
816
$A = function(iterable) {
817
if (!iterable) return [];
818
if (!(Object.isFunction(iterable) && iterable == '[object NodeList]') &&
819
iterable.toArray) return iterable.toArray();
820
var length = iterable.length || 0, results = new Array(length);
821
while (length--) results[length] = iterable[length];
828
Object.extend(Array.prototype, Enumerable);
830
if (!Array.prototype._reverse) Array.prototype._reverse = Array.prototype.reverse;
832
Object.extend(Array.prototype, {
833
_each: function(iterator) {
834
for (var i = 0, length = this.length; i < length; i++)
848
return this[this.length - 1];
851
compact: function() {
852
return this.select(function(value) {
853
return value != null;
857
flatten: function() {
858
return this.inject([], function(array, value) {
859
return array.concat(Object.isArray(value) ?
860
value.flatten() : [value]);
864
without: function() {
865
var values = $A(arguments);
866
return this.select(function(value) {
867
return !values.include(value);
871
reverse: function(inline) {
872
return (inline !== false ? this : this.toArray())._reverse();
876
return this.length > 1 ? this : this[0];
879
uniq: function(sorted) {
880
return this.inject([], function(array, value, index) {
881
if (0 == index || (sorted ? array.last() != value : !array.include(value)))
887
intersect: function(array) {
888
return this.uniq().findAll(function(item) {
889
return array.detect(function(value) { return item === value });
894
return [].concat(this);
901
inspect: function() {
902
return '[' + this.map(Object.inspect).join(', ') + ']';
907
this.each(function(object) {
908
var value = Object.toJSON(object);
909
if (!Object.isUndefined(value)) results.push(value);
911
return '[' + results.join(', ') + ']';
915
// use native browser JS 1.6 implementation if available
916
if (Object.isFunction(Array.prototype.forEach))
917
Array.prototype._each = Array.prototype.forEach;
919
if (!Array.prototype.indexOf) Array.prototype.indexOf = function(item, i) {
921
var length = this.length;
922
if (i < 0) i = length + i;
923
for (; i < length; i++)
924
if (this[i] === item) return i;
928
if (!Array.prototype.lastIndexOf) Array.prototype.lastIndexOf = function(item, i) {
929
i = isNaN(i) ? this.length : (i < 0 ? this.length + i : i) + 1;
930
var n = this.slice(0, i).reverse().indexOf(item);
931
return (n < 0) ? n : i - n - 1;
934
Array.prototype.toArray = Array.prototype.clone;
936
function $w(string) {
937
if (!Object.isString(string)) return [];
938
string = string.strip();
939
return string ? string.split(/\s+/) : [];
942
if (Prototype.Browser.Opera){
943
Array.prototype.concat = function() {
945
for (var i = 0, length = this.length; i < length; i++) array.push(this[i]);
946
for (var i = 0, length = arguments.length; i < length; i++) {
947
if (Object.isArray(arguments[i])) {
948
for (var j = 0, arrayLength = arguments[i].length; j < arrayLength; j++)
949
array.push(arguments[i][j]);
951
array.push(arguments[i]);
957
Object.extend(Number.prototype, {
958
toColorPart: function() {
959
return this.toPaddedString(2, 16);
966
times: function(iterator) {
967
$R(0, this, true).each(iterator);
971
toPaddedString: function(length, radix) {
972
var string = this.toString(radix || 10);
973
return '0'.times(length - string.length) + string;
977
return isFinite(this) ? this.toString() : 'null';
981
$w('abs round ceil floor').each(function(method){
982
Number.prototype[method] = Math[method].methodize();
984
function $H(object) {
985
return new Hash(object);
988
var Hash = Class.create(Enumerable, (function() {
990
function toQueryPair(key, value) {
991
if (Object.isUndefined(value)) return key;
992
return key + '=' + encodeURIComponent(String.interpret(value));
996
initialize: function(object) {
997
this._object = Object.isHash(object) ? object.toObject() : Object.clone(object);
1000
_each: function(iterator) {
1001
for (var key in this._object) {
1002
var value = this._object[key], pair = [key, value];
1009
set: function(key, value) {
1010
return this._object[key] = value;
1013
get: function(key) {
1014
return this._object[key];
1017
unset: function(key) {
1018
var value = this._object[key];
1019
delete this._object[key];
1023
toObject: function() {
1024
return Object.clone(this._object);
1028
return this.pluck('key');
1031
values: function() {
1032
return this.pluck('value');
1035
index: function(value) {
1036
var match = this.detect(function(pair) {
1037
return pair.value === value;
1039
return match && match.key;
1042
merge: function(object) {
1043
return this.clone().update(object);
1046
update: function(object) {
1047
return new Hash(object).inject(this, function(result, pair) {
1048
result.set(pair.key, pair.value);
1053
toQueryString: function() {
1054
return this.map(function(pair) {
1055
var key = encodeURIComponent(pair.key), values = pair.value;
1057
if (values && typeof values == 'object') {
1058
if (Object.isArray(values))
1059
return values.map(toQueryPair.curry(key)).join('&');
1061
return toQueryPair(key, values);
1065
inspect: function() {
1066
return '#<Hash:{' + this.map(function(pair) {
1067
return pair.map(Object.inspect).join(': ');
1068
}).join(', ') + '}>';
1071
toJSON: function() {
1072
return Object.toJSON(this.toObject());
1076
return new Hash(this);
1081
Hash.prototype.toTemplateReplacements = Hash.prototype.toObject;
1083
var ObjectRange = Class.create(Enumerable, {
1084
initialize: function(start, end, exclusive) {
1087
this.exclusive = exclusive;
1090
_each: function(iterator) {
1091
var value = this.start;
1092
while (this.include(value)) {
1094
value = value.succ();
1098
include: function(value) {
1099
if (value < this.start)
1102
return value < this.end;
1103
return value <= this.end;
1107
var $R = function(start, end, exclusive) {
1108
return new ObjectRange(start, end, exclusive);
1112
getTransport: function() {
1114
function() {return new XMLHttpRequest()},
1115
function() {return new ActiveXObject('Msxml2.XMLHTTP')},
1116
function() {return new ActiveXObject('Microsoft.XMLHTTP')}
1120
activeRequestCount: 0
1126
_each: function(iterator) {
1127
this.responders._each(iterator);
1130
register: function(responder) {
1131
if (!this.include(responder))
1132
this.responders.push(responder);
1135
unregister: function(responder) {
1136
this.responders = this.responders.without(responder);
1139
dispatch: function(callback, request, transport, json) {
1140
this.each(function(responder) {
1141
if (Object.isFunction(responder[callback])) {
1143
responder[callback].apply(responder, [request, transport, json]);
1150
Object.extend(Ajax.Responders, Enumerable);
1152
Ajax.Responders.register({
1153
onCreate: function() { Ajax.activeRequestCount++ },
1154
onComplete: function() { Ajax.activeRequestCount-- }
1157
Ajax.Base = Class.create({
1158
initialize: function(options) {
1162
contentType: 'application/x-www-form-urlencoded',
1168
Object.extend(this.options, options || { });
1170
this.options.method = this.options.method.toLowerCase();
1172
if (Object.isString(this.options.parameters))
1173
this.options.parameters = this.options.parameters.toQueryParams();
1174
else if (Object.isHash(this.options.parameters))
1175
this.options.parameters = this.options.parameters.toObject();
1179
Ajax.Request = Class.create(Ajax.Base, {
1182
initialize: function($super, url, options) {
1184
this.transport = Ajax.getTransport();
1188
request: function(url) {
1190
this.method = this.options.method;
1191
var params = Object.clone(this.options.parameters);
1193
if (!['get', 'post'].include(this.method)) {
1194
// simulate other verbs over post
1195
params['_method'] = this.method;
1196
this.method = 'post';
1199
this.parameters = params;
1201
if (params = Object.toQueryString(params)) {
1202
// when GET, append parameters to URL
1203
if (this.method == 'get')
1204
this.url += (this.url.include('?') ? '&' : '?') + params;
1205
else if (/Konqueror|Safari|KHTML/.test(navigator.userAgent))
1210
var response = new Ajax.Response(this);
1211
if (this.options.onCreate) this.options.onCreate(response);
1212
Ajax.Responders.dispatch('onCreate', this, response);
1214
this.transport.open(this.method.toUpperCase(), this.url,
1215
this.options.asynchronous);
1217
if (this.options.asynchronous) this.respondToReadyState.bind(this).defer(1);
1219
this.transport.onreadystatechange = this.onStateChange.bind(this);
1220
this.setRequestHeaders();
1222
this.body = this.method == 'post' ? (this.options.postBody || params) : null;
1223
this.transport.send(this.body);
1225
/* Force Firefox to handle ready state 4 for synchronous requests */
1226
if (!this.options.asynchronous && this.transport.overrideMimeType)
1227
this.onStateChange();
1231
this.dispatchException(e);
1235
onStateChange: function() {
1236
var readyState = this.transport.readyState;
1237
if (readyState > 1 && !((readyState == 4) && this._complete))
1238
this.respondToReadyState(this.transport.readyState);
1241
setRequestHeaders: function() {
1243
'X-Requested-With': 'XMLHttpRequest',
1244
'X-Prototype-Version': Prototype.Version,
1245
'Accept': 'text/javascript, text/html, application/xml, text/xml, */*'
1248
if (this.method == 'post') {
1249
headers['Content-type'] = this.options.contentType +
1250
(this.options.encoding ? '; charset=' + this.options.encoding : '');
1252
/* Force "Connection: close" for older Mozilla browsers to work
1253
* around a bug where XMLHttpRequest sends an incorrect
1254
* Content-length header. See Mozilla Bugzilla #246651.
1256
if (this.transport.overrideMimeType &&
1257
(navigator.userAgent.match(/Gecko\/(\d{4})/) || [0,2005])[1] < 2005)
1258
headers['Connection'] = 'close';
1261
// user-defined headers
1262
if (typeof this.options.requestHeaders == 'object') {
1263
var extras = this.options.requestHeaders;
1265
if (Object.isFunction(extras.push))
1266
for (var i = 0, length = extras.length; i < length; i += 2)
1267
headers[extras[i]] = extras[i+1];
1269
$H(extras).each(function(pair) { headers[pair.key] = pair.value });
1272
for (var name in headers)
1273
this.transport.setRequestHeader(name, headers[name]);
1276
success: function() {
1277
var status = this.getStatus();
1278
return !status || (status >= 200 && status < 300);
1281
getStatus: function() {
1283
return this.transport.status || 0;
1284
} catch (e) { return 0 }
1287
respondToReadyState: function(readyState) {
1288
var state = Ajax.Request.Events[readyState], response = new Ajax.Response(this);
1290
if (state == 'Complete') {
1292
this._complete = true;
1293
(this.options['on' + response.status]
1294
|| this.options['on' + (this.success() ? 'Success' : 'Failure')]
1295
|| Prototype.emptyFunction)(response, response.headerJSON);
1297
this.dispatchException(e);
1300
var contentType = response.getHeader('Content-type');
1301
if (this.options.evalJS == 'force'
1302
|| (this.options.evalJS && this.isSameOrigin() && contentType
1303
&& contentType.match(/^\s*(text|application)\/(x-)?(java|ecma)script(;.*)?\s*$/i)))
1304
this.evalResponse();
1308
(this.options['on' + state] || Prototype.emptyFunction)(response, response.headerJSON);
1309
Ajax.Responders.dispatch('on' + state, this, response, response.headerJSON);
1311
this.dispatchException(e);
1314
if (state == 'Complete') {
1315
// avoid memory leak in MSIE: clean up
1316
this.transport.onreadystatechange = Prototype.emptyFunction;
1320
isSameOrigin: function() {
1321
var m = this.url.match(/^\s*https?:\/\/[^\/]*/);
1322
return !m || (m[0] == '#{protocol}//#{domain}#{port}'.interpolate({
1323
protocol: location.protocol,
1324
domain: document.domain,
1325
port: location.port ? ':' + location.port : ''
1329
getHeader: function(name) {
1331
return this.transport.getResponseHeader(name) || null;
1332
} catch (e) { return null }
1335
evalResponse: function() {
1337
return eval((this.transport.responseText || '').unfilterJSON());
1339
this.dispatchException(e);
1343
dispatchException: function(exception) {
1344
(this.options.onException || Prototype.emptyFunction)(this, exception);
1345
Ajax.Responders.dispatch('onException', this, exception);
1349
Ajax.Request.Events =
1350
['Uninitialized', 'Loading', 'Loaded', 'Interactive', 'Complete'];
1352
Ajax.Response = Class.create({
1353
initialize: function(request){
1354
this.request = request;
1355
var transport = this.transport = request.transport,
1356
readyState = this.readyState = transport.readyState;
1358
if((readyState > 2 && !Prototype.Browser.IE) || readyState == 4) {
1359
this.status = this.getStatus();
1360
this.statusText = this.getStatusText();
1361
this.responseText = String.interpret(transport.responseText);
1362
this.headerJSON = this._getHeaderJSON();
1365
if(readyState == 4) {
1366
var xml = transport.responseXML;
1367
this.responseXML = Object.isUndefined(xml) ? null : xml;
1368
this.responseJSON = this._getResponseJSON();
1375
getStatus: Ajax.Request.prototype.getStatus,
1377
getStatusText: function() {
1379
return this.transport.statusText || '';
1380
} catch (e) { return '' }
1383
getHeader: Ajax.Request.prototype.getHeader,
1385
getAllHeaders: function() {
1387
return this.getAllResponseHeaders();
1388
} catch (e) { return null }
1391
getResponseHeader: function(name) {
1392
return this.transport.getResponseHeader(name);
1395
getAllResponseHeaders: function() {
1396
return this.transport.getAllResponseHeaders();
1399
_getHeaderJSON: function() {
1400
var json = this.getHeader('X-JSON');
1401
if (!json) return null;
1402
json = decodeURIComponent(escape(json));
1404
return json.evalJSON(this.request.options.sanitizeJSON ||
1405
!this.request.isSameOrigin());
1407
this.request.dispatchException(e);
1411
_getResponseJSON: function() {
1412
var options = this.request.options;
1413
if (!options.evalJSON || (options.evalJSON != 'force' &&
1414
!(this.getHeader('Content-type') || '').include('application/json')) ||
1415
this.responseText.blank())
1418
return this.responseText.evalJSON(options.sanitizeJSON ||
1419
!this.request.isSameOrigin());
1421
this.request.dispatchException(e);
1426
Ajax.Updater = Class.create(Ajax.Request, {
1427
initialize: function($super, container, url, options) {
1429
success: (container.success || container),
1430
failure: (container.failure || (container.success ? null : container))
1433
options = Object.clone(options);
1434
var onComplete = options.onComplete;
1435
options.onComplete = (function(response, json) {
1436
this.updateContent(response.responseText);
1437
if (Object.isFunction(onComplete)) onComplete(response, json);
1440
$super(url, options);
1443
updateContent: function(responseText) {
1444
var receiver = this.container[this.success() ? 'success' : 'failure'],
1445
options = this.options;
1447
if (!options.evalScripts) responseText = responseText.stripScripts();
1449
if (receiver = $(receiver)) {
1450
if (options.insertion) {
1451
if (Object.isString(options.insertion)) {
1452
var insertion = { }; insertion[options.insertion] = responseText;
1453
receiver.insert(insertion);
1455
else options.insertion(receiver, responseText);
1457
else receiver.update(responseText);
1462
Ajax.PeriodicalUpdater = Class.create(Ajax.Base, {
1463
initialize: function($super, container, url, options) {
1465
this.onComplete = this.options.onComplete;
1467
this.frequency = (this.options.frequency || 2);
1468
this.decay = (this.options.decay || 1);
1471
this.container = container;
1478
this.options.onComplete = this.updateComplete.bind(this);
1479
this.onTimerEvent();
1483
this.updater.options.onComplete = undefined;
1484
clearTimeout(this.timer);
1485
(this.onComplete || Prototype.emptyFunction).apply(this, arguments);
1488
updateComplete: function(response) {
1489
if (this.options.decay) {
1490
this.decay = (response.responseText == this.lastText ?
1491
this.decay * this.options.decay : 1);
1493
this.lastText = response.responseText;
1495
this.timer = this.onTimerEvent.bind(this).delay(this.decay * this.frequency);
1498
onTimerEvent: function() {
1499
this.updater = new Ajax.Updater(this.container, this.url, this.options);
1502
function $(element) {
1503
if (arguments.length > 1) {
1504
for (var i = 0, elements = [], length = arguments.length; i < length; i++)
1505
elements.push($(arguments[i]));
1508
if (Object.isString(element))
1509
element = document.getElementById(element);
1510
return Element.extend(element);
1513
if (Prototype.BrowserFeatures.XPath) {
1514
document._getElementsByXPath = function(expression, parentElement) {
1516
var query = document.evaluate(expression, $(parentElement) || document,
1517
null, XPathResult.ORDERED_NODE_SNAPSHOT_TYPE, null);
1518
for (var i = 0, length = query.snapshotLength; i < length; i++)
1519
results.push(Element.extend(query.snapshotItem(i)));
1524
/*--------------------------------------------------------------------------*/
1526
if (!window.Node) var Node = { };
1528
if (!Node.ELEMENT_NODE) {
1529
// DOM level 2 ECMAScript Language Binding
1530
Object.extend(Node, {
1534
CDATA_SECTION_NODE: 4,
1535
ENTITY_REFERENCE_NODE: 5,
1537
PROCESSING_INSTRUCTION_NODE: 7,
1540
DOCUMENT_TYPE_NODE: 10,
1541
DOCUMENT_FRAGMENT_NODE: 11,
1547
var element = this.Element;
1548
this.Element = function(tagName, attributes) {
1549
attributes = attributes || { };
1550
tagName = tagName.toLowerCase();
1551
var cache = Element.cache;
1552
if (Prototype.Browser.IE && attributes.name) {
1553
tagName = '<' + tagName + ' name="' + attributes.name + '">';
1554
delete attributes.name;
1555
return Element.writeAttribute(document.createElement(tagName), attributes);
1557
if (!cache[tagName]) cache[tagName] = Element.extend(document.createElement(tagName));
1558
return Element.writeAttribute(cache[tagName].cloneNode(false), attributes);
1560
Object.extend(this.Element, element || { });
1563
Element.cache = { };
1566
visible: function(element) {
1567
return $(element).style.display != 'none';
1570
toggle: function(element) {
1571
element = $(element);
1572
Element[Element.visible(element) ? 'hide' : 'show'](element);
1576
hide: function(element) {
1577
$(element).style.display = 'none';
1581
show: function(element) {
1582
$(element).style.display = '';
1586
remove: function(element) {
1587
element = $(element);
1588
element.parentNode.removeChild(element);
1592
update: function(element, content) {
1593
element = $(element);
1594
if (content && content.toElement) content = content.toElement();
1595
if (Object.isElement(content)) return element.update().insert(content);
1596
content = Object.toHTML(content);
1597
element.innerHTML = content.stripScripts();
1598
content.evalScripts.bind(content).defer();
1602
replace: function(element, content) {
1603
element = $(element);
1604
if (content && content.toElement) content = content.toElement();
1605
else if (!Object.isElement(content)) {
1606
content = Object.toHTML(content);
1607
var range = element.ownerDocument.createRange();
1608
range.selectNode(element);
1609
content.evalScripts.bind(content).defer();
1610
content = range.createContextualFragment(content.stripScripts());
1612
element.parentNode.replaceChild(content, element);
1616
insert: function(element, insertions) {
1617
element = $(element);
1619
if (Object.isString(insertions) || Object.isNumber(insertions) ||
1620
Object.isElement(insertions) || (insertions && (insertions.toElement || insertions.toHTML)))
1621
insertions = {bottom:insertions};
1623
var content, insert, tagName, childNodes;
1625
for (var position in insertions) {
1626
content = insertions[position];
1627
position = position.toLowerCase();
1628
insert = Element._insertionTranslations[position];
1630
if (content && content.toElement) content = content.toElement();
1631
if (Object.isElement(content)) {
1632
insert(element, content);
1636
content = Object.toHTML(content);
1638
tagName = ((position == 'before' || position == 'after')
1639
? element.parentNode : element).tagName.toUpperCase();
1641
childNodes = Element._getContentFromAnonymousElement(tagName, content.stripScripts());
1643
if (position == 'top' || position == 'after') childNodes.reverse();
1644
childNodes.each(insert.curry(element));
1646
content.evalScripts.bind(content).defer();
1652
wrap: function(element, wrapper, attributes) {
1653
element = $(element);
1654
if (Object.isElement(wrapper))
1655
$(wrapper).writeAttribute(attributes || { });
1656
else if (Object.isString(wrapper)) wrapper = new Element(wrapper, attributes);
1657
else wrapper = new Element('div', wrapper);
1658
if (element.parentNode)
1659
element.parentNode.replaceChild(wrapper, element);
1660
wrapper.appendChild(element);
1664
inspect: function(element) {
1665
element = $(element);
1666
var result = '<' + element.tagName.toLowerCase();
1667
$H({'id': 'id', 'className': 'class'}).each(function(pair) {
1668
var property = pair.first(), attribute = pair.last();
1669
var value = (element[property] || '').toString();
1670
if (value) result += ' ' + attribute + '=' + value.inspect(true);
1672
return result + '>';
1675
recursivelyCollect: function(element, property) {
1676
element = $(element);
1678
while (element = element[property])
1679
if (element.nodeType == 1)
1680
elements.push(Element.extend(element));
1684
ancestors: function(element) {
1685
return $(element).recursivelyCollect('parentNode');
1688
descendants: function(element) {
1689
return $(element).select("*");
1692
firstDescendant: function(element) {
1693
element = $(element).firstChild;
1694
while (element && element.nodeType != 1) element = element.nextSibling;
1698
immediateDescendants: function(element) {
1699
if (!(element = $(element).firstChild)) return [];
1700
while (element && element.nodeType != 1) element = element.nextSibling;
1701
if (element) return [element].concat($(element).nextSiblings());
1705
previousSiblings: function(element) {
1706
return $(element).recursivelyCollect('previousSibling');
1709
nextSiblings: function(element) {
1710
return $(element).recursivelyCollect('nextSibling');
1713
siblings: function(element) {
1714
element = $(element);
1715
return element.previousSiblings().reverse().concat(element.nextSiblings());
1718
match: function(element, selector) {
1719
if (Object.isString(selector))
1720
selector = new Selector(selector);
1721
return selector.match($(element));
1724
up: function(element, expression, index) {
1725
element = $(element);
1726
if (arguments.length == 1) return $(element.parentNode);
1727
var ancestors = element.ancestors();
1728
return Object.isNumber(expression) ? ancestors[expression] :
1729
Selector.findElement(ancestors, expression, index);
1732
down: function(element, expression, index) {
1733
element = $(element);
1734
if (arguments.length == 1) return element.firstDescendant();
1735
return Object.isNumber(expression) ? element.descendants()[expression] :
1736
element.select(expression)[index || 0];
1739
previous: function(element, expression, index) {
1740
element = $(element);
1741
if (arguments.length == 1) return $(Selector.handlers.previousElementSibling(element));
1742
var previousSiblings = element.previousSiblings();
1743
return Object.isNumber(expression) ? previousSiblings[expression] :
1744
Selector.findElement(previousSiblings, expression, index);
1747
next: function(element, expression, index) {
1748
element = $(element);
1749
if (arguments.length == 1) return $(Selector.handlers.nextElementSibling(element));
1750
var nextSiblings = element.nextSiblings();
1751
return Object.isNumber(expression) ? nextSiblings[expression] :
1752
Selector.findElement(nextSiblings, expression, index);
1755
select: function() {
1756
var args = $A(arguments), element = $(args.shift());
1757
return Selector.findChildElements(element, args);
1760
adjacent: function() {
1761
var args = $A(arguments), element = $(args.shift());
1762
return Selector.findChildElements(element.parentNode, args).without(element);
1765
identify: function(element) {
1766
element = $(element);
1767
var id = element.readAttribute('id'), self = arguments.callee;
1769
do { id = 'anonymous_element_' + self.counter++ } while ($(id));
1770
element.writeAttribute('id', id);
1774
readAttribute: function(element, name) {
1775
element = $(element);
1776
if (Prototype.Browser.IE) {
1777
var t = Element._attributeTranslations.read;
1778
if (t.values[name]) return t.values[name](element, name);
1779
if (t.names[name]) name = t.names[name];
1780
if (name.include(':')) {
1781
return (!element.attributes || !element.attributes[name]) ? null :
1782
element.attributes[name].value;
1785
return element.getAttribute(name);
1788
writeAttribute: function(element, name, value) {
1789
element = $(element);
1790
var attributes = { }, t = Element._attributeTranslations.write;
1792
if (typeof name == 'object') attributes = name;
1793
else attributes[name] = Object.isUndefined(value) ? true : value;
1795
for (var attr in attributes) {
1796
name = t.names[attr] || attr;
1797
value = attributes[attr];
1798
if (t.values[attr]) name = t.values[attr](element, value);
1799
if (value === false || value === null)
1800
element.removeAttribute(name);
1801
else if (value === true)
1802
element.setAttribute(name, name);
1803
else element.setAttribute(name, value);
1808
getHeight: function(element) {
1809
return $(element).getDimensions().height;
1812
getWidth: function(element) {
1813
return $(element).getDimensions().width;
1816
classNames: function(element) {
1817
return new Element.ClassNames(element);
1820
hasClassName: function(element, className) {
1821
if (!(element = $(element))) return;
1822
var elementClassName = element.className;
1823
return (elementClassName.length > 0 && (elementClassName == className ||
1824
new RegExp("(^|\\s)" + className + "(\\s|$)").test(elementClassName)));
1827
addClassName: function(element, className) {
1828
if (!(element = $(element))) return;
1829
if (!element.hasClassName(className))
1830
element.className += (element.className ? ' ' : '') + className;
1834
removeClassName: function(element, className) {
1835
if (!(element = $(element))) return;
1836
element.className = element.className.replace(
1837
new RegExp("(^|\\s+)" + className + "(\\s+|$)"), ' ').strip();
1841
toggleClassName: function(element, className) {
1842
if (!(element = $(element))) return;
1843
return element[element.hasClassName(className) ?
1844
'removeClassName' : 'addClassName'](className);
1847
// removes whitespace-only text node children
1848
cleanWhitespace: function(element) {
1849
element = $(element);
1850
var node = element.firstChild;
1852
var nextNode = node.nextSibling;
1853
if (node.nodeType == 3 && !/\S/.test(node.nodeValue))
1854
element.removeChild(node);
1860
empty: function(element) {
1861
return $(element).innerHTML.blank();
1864
descendantOf: function(element, ancestor) {
1865
element = $(element), ancestor = $(ancestor);
1866
var originalAncestor = ancestor;
1868
if (element.compareDocumentPosition)
1869
return (element.compareDocumentPosition(ancestor) & 8) === 8;
1871
if (element.sourceIndex && !Prototype.Browser.Opera) {
1872
var e = element.sourceIndex, a = ancestor.sourceIndex,
1873
nextAncestor = ancestor.nextSibling;
1874
if (!nextAncestor) {
1875
do { ancestor = ancestor.parentNode; }
1876
while (!(nextAncestor = ancestor.nextSibling) && ancestor.parentNode);
1878
if (nextAncestor && nextAncestor.sourceIndex)
1879
return (e > a && e < nextAncestor.sourceIndex);
1882
while (element = element.parentNode)
1883
if (element == originalAncestor) return true;
1887
scrollTo: function(element) {
1888
element = $(element);
1889
var pos = element.cumulativeOffset();
1890
window.scrollTo(pos[0], pos[1]);
1894
getStyle: function(element, style) {
1895
element = $(element);
1896
style = style == 'float' ? 'cssFloat' : style.camelize();
1897
var value = element.style[style];
1899
var css = document.defaultView.getComputedStyle(element, null);
1900
value = css ? css[style] : null;
1902
if (style == 'opacity') return value ? parseFloat(value) : 1.0;
1903
return value == 'auto' ? null : value;
1906
getOpacity: function(element) {
1907
return $(element).getStyle('opacity');
1910
setStyle: function(element, styles) {
1911
element = $(element);
1912
var elementStyle = element.style, match;
1913
if (Object.isString(styles)) {
1914
element.style.cssText += ';' + styles;
1915
return styles.include('opacity') ?
1916
element.setOpacity(styles.match(/opacity:\s*(\d?\.?\d*)/)[1]) : element;
1918
for (var property in styles)
1919
if (property == 'opacity') element.setOpacity(styles[property]);
1921
elementStyle[(property == 'float' || property == 'cssFloat') ?
1922
(Object.isUndefined(elementStyle.styleFloat) ? 'cssFloat' : 'styleFloat') :
1923
property] = styles[property];
1928
setOpacity: function(element, value) {
1929
element = $(element);
1930
element.style.opacity = (value == 1 || value === '') ? '' :
1931
(value < 0.00001) ? 0 : value;
1935
getDimensions: function(element) {
1936
element = $(element);
1937
var display = $(element).getStyle('display');
1938
if (display != 'none' && display != null) // Safari bug
1939
return {width: element.offsetWidth, height: element.offsetHeight};
1941
// All *Width and *Height properties give 0 on elements with display none,
1942
// so enable the element temporarily
1943
var els = element.style;
1944
var originalVisibility = els.visibility;
1945
var originalPosition = els.position;
1946
var originalDisplay = els.display;
1947
els.visibility = 'hidden';
1948
els.position = 'absolute';
1949
els.display = 'block';
1950
var originalWidth = element.clientWidth;
1951
var originalHeight = element.clientHeight;
1952
els.display = originalDisplay;
1953
els.position = originalPosition;
1954
els.visibility = originalVisibility;
1955
return {width: originalWidth, height: originalHeight};
1958
makePositioned: function(element) {
1959
element = $(element);
1960
var pos = Element.getStyle(element, 'position');
1961
if (pos == 'static' || !pos) {
1962
element._madePositioned = true;
1963
element.style.position = 'relative';
1964
// Opera returns the offset relative to the positioning context, when an
1965
// element is position relative but top and left have not been defined
1967
element.style.top = 0;
1968
element.style.left = 0;
1974
undoPositioned: function(element) {
1975
element = $(element);
1976
if (element._madePositioned) {
1977
element._madePositioned = undefined;
1978
element.style.position =
1980
element.style.left =
1981
element.style.bottom =
1982
element.style.right = '';
1987
makeClipping: function(element) {
1988
element = $(element);
1989
if (element._overflow) return element;
1990
element._overflow = Element.getStyle(element, 'overflow') || 'auto';
1991
if (element._overflow !== 'hidden')
1992
element.style.overflow = 'hidden';
1996
undoClipping: function(element) {
1997
element = $(element);
1998
if (!element._overflow) return element;
1999
element.style.overflow = element._overflow == 'auto' ? '' : element._overflow;
2000
element._overflow = null;
2004
cumulativeOffset: function(element) {
2005
var valueT = 0, valueL = 0;
2007
valueT += element.offsetTop || 0;
2008
valueL += element.offsetLeft || 0;
2009
element = element.offsetParent;
2011
return Element._returnOffset(valueL, valueT);
2014
positionedOffset: function(element) {
2015
var valueT = 0, valueL = 0;
2017
valueT += element.offsetTop || 0;
2018
valueL += element.offsetLeft || 0;
2019
element = element.offsetParent;
2021
if (element.tagName == 'BODY') break;
2022
var p = Element.getStyle(element, 'position');
2023
if (p !== 'static') break;
2026
return Element._returnOffset(valueL, valueT);
2029
absolutize: function(element) {
2030
element = $(element);
2031
if (element.getStyle('position') == 'absolute') return;
2032
// Position.prepare(); // To be done manually by Scripty when it needs it.
2034
var offsets = element.positionedOffset();
2035
var top = offsets[1];
2036
var left = offsets[0];
2037
var width = element.clientWidth;
2038
var height = element.clientHeight;
2040
element._originalLeft = left - parseFloat(element.style.left || 0);
2041
element._originalTop = top - parseFloat(element.style.top || 0);
2042
element._originalWidth = element.style.width;
2043
element._originalHeight = element.style.height;
2045
element.style.position = 'absolute';
2046
element.style.top = top + 'px';
2047
element.style.left = left + 'px';
2048
element.style.width = width + 'px';
2049
element.style.height = height + 'px';
2053
relativize: function(element) {
2054
element = $(element);
2055
if (element.getStyle('position') == 'relative') return;
2056
// Position.prepare(); // To be done manually by Scripty when it needs it.
2058
element.style.position = 'relative';
2059
var top = parseFloat(element.style.top || 0) - (element._originalTop || 0);
2060
var left = parseFloat(element.style.left || 0) - (element._originalLeft || 0);
2062
element.style.top = top + 'px';
2063
element.style.left = left + 'px';
2064
element.style.height = element._originalHeight;
2065
element.style.width = element._originalWidth;
2069
cumulativeScrollOffset: function(element) {
2070
var valueT = 0, valueL = 0;
2072
valueT += element.scrollTop || 0;
2073
valueL += element.scrollLeft || 0;
2074
element = element.parentNode;
2076
return Element._returnOffset(valueL, valueT);
2079
getOffsetParent: function(element) {
2080
if (element.offsetParent) return $(element.offsetParent);
2081
if (element == document.body) return $(element);
2083
while ((element = element.parentNode) && element != document.body)
2084
if (Element.getStyle(element, 'position') != 'static')
2087
return $(document.body);
2090
viewportOffset: function(forElement) {
2091
var valueT = 0, valueL = 0;
2093
var element = forElement;
2095
valueT += element.offsetTop || 0;
2096
valueL += element.offsetLeft || 0;
2099
if (element.offsetParent == document.body &&
2100
Element.getStyle(element, 'position') == 'absolute') break;
2102
} while (element = element.offsetParent);
2104
element = forElement;
2106
if (!Prototype.Browser.Opera || element.tagName == 'BODY') {
2107
valueT -= element.scrollTop || 0;
2108
valueL -= element.scrollLeft || 0;
2110
} while (element = element.parentNode);
2112
return Element._returnOffset(valueL, valueT);
2115
clonePosition: function(element, source) {
2116
var options = Object.extend({
2123
}, arguments[2] || { });
2125
// find page position of source
2127
var p = source.viewportOffset();
2129
// find coordinate system to use
2130
element = $(element);
2133
// delta [0,0] will do fine with position: fixed elements,
2134
// position:absolute needs offsetParent deltas
2135
if (Element.getStyle(element, 'position') == 'absolute') {
2136
parent = element.getOffsetParent();
2137
delta = parent.viewportOffset();
2140
// correct by body offsets (fixes Safari)
2141
if (parent == document.body) {
2142
delta[0] -= document.body.offsetLeft;
2143
delta[1] -= document.body.offsetTop;
2147
if (options.setLeft) element.style.left = (p[0] - delta[0] + options.offsetLeft) + 'px';
2148
if (options.setTop) element.style.top = (p[1] - delta[1] + options.offsetTop) + 'px';
2149
if (options.setWidth) element.style.width = source.offsetWidth + 'px';
2150
if (options.setHeight) element.style.height = source.offsetHeight + 'px';
2155
Element.Methods.identify.counter = 1;
2157
Object.extend(Element.Methods, {
2158
getElementsBySelector: Element.Methods.select,
2159
childElements: Element.Methods.immediateDescendants
2162
Element._attributeTranslations = {
2172
if (Prototype.Browser.Opera) {
2173
Element.Methods.getStyle = Element.Methods.getStyle.wrap(
2174
function(proceed, element, style) {
2176
case 'left': case 'top': case 'right': case 'bottom':
2177
if (proceed(element, 'position') === 'static') return null;
2178
case 'height': case 'width':
2179
// returns '0px' for hidden elements; we want it to return null
2180
if (!Element.visible(element)) return null;
2182
// returns the border-box dimensions rather than the content-box
2183
// dimensions, so we subtract padding and borders from the value
2184
var dim = parseInt(proceed(element, style), 10);
2186
if (dim !== element['offset' + style.capitalize()])
2190
if (style === 'height') {
2191
properties = ['border-top-width', 'padding-top',
2192
'padding-bottom', 'border-bottom-width'];
2195
properties = ['border-left-width', 'padding-left',
2196
'padding-right', 'border-right-width'];
2198
return properties.inject(dim, function(memo, property) {
2199
var val = proceed(element, property);
2200
return val === null ? memo : memo - parseInt(val, 10);
2202
default: return proceed(element, style);
2207
Element.Methods.readAttribute = Element.Methods.readAttribute.wrap(
2208
function(proceed, element, attribute) {
2209
if (attribute === 'title') return element.title;
2210
return proceed(element, attribute);
2215
else if (Prototype.Browser.IE) {
2216
// IE doesn't report offsets correctly for static elements, so we change them
2217
// to "relative" to get the values, then change them back.
2218
Element.Methods.getOffsetParent = Element.Methods.getOffsetParent.wrap(
2219
function(proceed, element) {
2220
element = $(element);
2221
var position = element.getStyle('position');
2222
if (position !== 'static') return proceed(element);
2223
element.setStyle({ position: 'relative' });
2224
var value = proceed(element);
2225
element.setStyle({ position: position });
2230
$w('positionedOffset viewportOffset').each(function(method) {
2231
Element.Methods[method] = Element.Methods[method].wrap(
2232
function(proceed, element) {
2233
element = $(element);
2234
var position = element.getStyle('position');
2235
if (position !== 'static') return proceed(element);
2236
// Trigger hasLayout on the offset parent so that IE6 reports
2237
// accurate offsetTop and offsetLeft values for position: fixed.
2238
var offsetParent = element.getOffsetParent();
2239
if (offsetParent && offsetParent.getStyle('position') === 'fixed')
2240
offsetParent.setStyle({ zoom: 1 });
2241
element.setStyle({ position: 'relative' });
2242
var value = proceed(element);
2243
element.setStyle({ position: position });
2249
Element.Methods.getStyle = function(element, style) {
2250
element = $(element);
2251
style = (style == 'float' || style == 'cssFloat') ? 'styleFloat' : style.camelize();
2252
var value = element.style[style];
2253
if (!value && element.currentStyle) value = element.currentStyle[style];
2255
if (style == 'opacity') {
2256
if (value = (element.getStyle('filter') || '').match(/alpha\(opacity=(.*)\)/))
2257
if (value[1]) return parseFloat(value[1]) / 100;
2261
if (value == 'auto') {
2262
if ((style == 'width' || style == 'height') && (element.getStyle('display') != 'none'))
2263
return element['offset' + style.capitalize()] + 'px';
2269
Element.Methods.setOpacity = function(element, value) {
2270
function stripAlpha(filter){
2271
return filter.replace(/alpha\([^\)]*\)/gi,'');
2273
element = $(element);
2274
var currentStyle = element.currentStyle;
2275
if ((currentStyle && !currentStyle.hasLayout) ||
2276
(!currentStyle && element.style.zoom == 'normal'))
2277
element.style.zoom = 1;
2279
var filter = element.getStyle('filter'), style = element.style;
2280
if (value == 1 || value === '') {
2281
(filter = stripAlpha(filter)) ?
2282
style.filter = filter : style.removeAttribute('filter');
2284
} else if (value < 0.00001) value = 0;
2285
style.filter = stripAlpha(filter) +
2286
'alpha(opacity=' + (value * 100) + ')';
2290
Element._attributeTranslations = {
2293
'class': 'className',
2297
_getAttr: function(element, attribute) {
2298
return element.getAttribute(attribute, 2);
2300
_getAttrNode: function(element, attribute) {
2301
var node = element.getAttributeNode(attribute);
2302
return node ? node.value : "";
2304
_getEv: function(element, attribute) {
2305
attribute = element.getAttribute(attribute);
2306
return attribute ? attribute.toString().slice(23, -2) : null;
2308
_flag: function(element, attribute) {
2309
return $(element).hasAttribute(attribute) ? attribute : null;
2311
style: function(element) {
2312
return element.style.cssText.toLowerCase();
2314
title: function(element) {
2315
return element.title;
2321
Element._attributeTranslations.write = {
2322
names: Object.extend({
2323
cellpadding: 'cellPadding',
2324
cellspacing: 'cellSpacing'
2325
}, Element._attributeTranslations.read.names),
2327
checked: function(element, value) {
2328
element.checked = !!value;
2331
style: function(element, value) {
2332
element.style.cssText = value ? value : '';
2337
Element._attributeTranslations.has = {};
2339
$w('colSpan rowSpan vAlign dateTime accessKey tabIndex ' +
2340
'encType maxLength readOnly longDesc').each(function(attr) {
2341
Element._attributeTranslations.write.names[attr.toLowerCase()] = attr;
2342
Element._attributeTranslations.has[attr.toLowerCase()] = attr;
2350
action: v._getAttrNode,
2358
ondblclick: v._getEv,
2359
onmousedown: v._getEv,
2360
onmouseup: v._getEv,
2361
onmouseover: v._getEv,
2362
onmousemove: v._getEv,
2363
onmouseout: v._getEv,
2366
onkeypress: v._getEv,
2367
onkeydown: v._getEv,
2374
})(Element._attributeTranslations.read.values);
2377
else if (Prototype.Browser.Gecko && /rv:1\.8\.0/.test(navigator.userAgent)) {
2378
Element.Methods.setOpacity = function(element, value) {
2379
element = $(element);
2380
element.style.opacity = (value == 1) ? 0.999999 :
2381
(value === '') ? '' : (value < 0.00001) ? 0 : value;
2386
else if (Prototype.Browser.WebKit) {
2387
Element.Methods.setOpacity = function(element, value) {
2388
element = $(element);
2389
element.style.opacity = (value == 1 || value === '') ? '' :
2390
(value < 0.00001) ? 0 : value;
2393
if(element.tagName == 'IMG' && element.width) {
2394
element.width++; element.width--;
2396
var n = document.createTextNode(' ');
2397
element.appendChild(n);
2398
element.removeChild(n);
2404
// Safari returns margins on body which is incorrect if the child is absolutely
2405
// positioned. For performance reasons, redefine Element#cumulativeOffset for
2406
// KHTML/WebKit only.
2407
Element.Methods.cumulativeOffset = function(element) {
2408
var valueT = 0, valueL = 0;
2410
valueT += element.offsetTop || 0;
2411
valueL += element.offsetLeft || 0;
2412
if (element.offsetParent == document.body)
2413
if (Element.getStyle(element, 'position') == 'absolute') break;
2415
element = element.offsetParent;
2418
return Element._returnOffset(valueL, valueT);
2422
if (Prototype.Browser.IE || Prototype.Browser.Opera) {
2423
// IE and Opera are missing .innerHTML support for TABLE-related and SELECT elements
2424
Element.Methods.update = function(element, content) {
2425
element = $(element);
2427
if (content && content.toElement) content = content.toElement();
2428
if (Object.isElement(content)) return element.update().insert(content);
2430
content = Object.toHTML(content);
2431
var tagName = element.tagName.toUpperCase();
2433
if (tagName in Element._insertionTranslations.tags) {
2434
$A(element.childNodes).each(function(node) { element.removeChild(node) });
2435
Element._getContentFromAnonymousElement(tagName, content.stripScripts())
2436
.each(function(node) { element.appendChild(node) });
2438
else element.innerHTML = content.stripScripts();
2440
content.evalScripts.bind(content).defer();
2445
if ('outerHTML' in document.createElement('div')) {
2446
Element.Methods.replace = function(element, content) {
2447
element = $(element);
2449
if (content && content.toElement) content = content.toElement();
2450
if (Object.isElement(content)) {
2451
element.parentNode.replaceChild(content, element);
2455
content = Object.toHTML(content);
2456
var parent = element.parentNode, tagName = parent.tagName.toUpperCase();
2458
if (Element._insertionTranslations.tags[tagName]) {
2459
var nextSibling = element.next();
2460
var fragments = Element._getContentFromAnonymousElement(tagName, content.stripScripts());
2461
parent.removeChild(element);
2463
fragments.each(function(node) { parent.insertBefore(node, nextSibling) });
2465
fragments.each(function(node) { parent.appendChild(node) });
2467
else element.outerHTML = content.stripScripts();
2469
content.evalScripts.bind(content).defer();
2474
Element._returnOffset = function(l, t) {
2475
var result = [l, t];
2481
Element._getContentFromAnonymousElement = function(tagName, html) {
2482
var div = new Element('div'), t = Element._insertionTranslations.tags[tagName];
2484
div.innerHTML = t[0] + html + t[1];
2485
t[2].times(function() { div = div.firstChild });
2486
} else div.innerHTML = html;
2487
return $A(div.childNodes);
2490
Element._insertionTranslations = {
2491
before: function(element, node) {
2492
element.parentNode.insertBefore(node, element);
2494
top: function(element, node) {
2495
element.insertBefore(node, element.firstChild);
2497
bottom: function(element, node) {
2498
element.appendChild(node);
2500
after: function(element, node) {
2501
element.parentNode.insertBefore(node, element.nextSibling);
2504
TABLE: ['<table>', '</table>', 1],
2505
TBODY: ['<table><tbody>', '</tbody></table>', 2],
2506
TR: ['<table><tbody><tr>', '</tr></tbody></table>', 3],
2507
TD: ['<table><tbody><tr><td>', '</td></tr></tbody></table>', 4],
2508
SELECT: ['<select>', '</select>', 1]
2513
Object.extend(this.tags, {
2514
THEAD: this.tags.TBODY,
2515
TFOOT: this.tags.TBODY,
2518
}).call(Element._insertionTranslations);
2520
Element.Methods.Simulated = {
2521
hasAttribute: function(element, attribute) {
2522
attribute = Element._attributeTranslations.has[attribute] || attribute;
2523
var node = $(element).getAttributeNode(attribute);
2524
return node && node.specified;
2528
Element.Methods.ByTag = { };
2530
Object.extend(Element, Element.Methods);
2532
if (!Prototype.BrowserFeatures.ElementExtensions &&
2533
document.createElement('div').__proto__) {
2534
window.HTMLElement = { };
2535
window.HTMLElement.prototype = document.createElement('div').__proto__;
2536
Prototype.BrowserFeatures.ElementExtensions = true;
2539
Element.extend = (function() {
2540
if (Prototype.BrowserFeatures.SpecificElementExtensions)
2543
var Methods = { }, ByTag = Element.Methods.ByTag;
2545
var extend = Object.extend(function(element) {
2546
if (!element || element._extendedByPrototype ||
2547
element.nodeType != 1 || element == window) return element;
2549
var methods = Object.clone(Methods),
2550
tagName = element.tagName, property, value;
2552
// extend methods for specific tags
2553
if (ByTag[tagName]) Object.extend(methods, ByTag[tagName]);
2555
for (property in methods) {
2556
value = methods[property];
2557
if (Object.isFunction(value) && !(property in element))
2558
element[property] = value.methodize();
2561
element._extendedByPrototype = Prototype.emptyFunction;
2565
refresh: function() {
2566
// extend methods for all tags (Safari doesn't need this)
2567
if (!Prototype.BrowserFeatures.ElementExtensions) {
2568
Object.extend(Methods, Element.Methods);
2569
Object.extend(Methods, Element.Methods.Simulated);
2578
Element.hasAttribute = function(element, attribute) {
2579
if (element.hasAttribute) return element.hasAttribute(attribute);
2580
return Element.Methods.Simulated.hasAttribute(element, attribute);
2583
Element.addMethods = function(methods) {
2584
var F = Prototype.BrowserFeatures, T = Element.Methods.ByTag;
2587
Object.extend(Form, Form.Methods);
2588
Object.extend(Form.Element, Form.Element.Methods);
2589
Object.extend(Element.Methods.ByTag, {
2590
"FORM": Object.clone(Form.Methods),
2591
"INPUT": Object.clone(Form.Element.Methods),
2592
"SELECT": Object.clone(Form.Element.Methods),
2593
"TEXTAREA": Object.clone(Form.Element.Methods)
2597
if (arguments.length == 2) {
2598
var tagName = methods;
2599
methods = arguments[1];
2602
if (!tagName) Object.extend(Element.Methods, methods || { });
2604
if (Object.isArray(tagName)) tagName.each(extend);
2605
else extend(tagName);
2608
function extend(tagName) {
2609
tagName = tagName.toUpperCase();
2610
if (!Element.Methods.ByTag[tagName])
2611
Element.Methods.ByTag[tagName] = { };
2612
Object.extend(Element.Methods.ByTag[tagName], methods);
2615
function copy(methods, destination, onlyIfAbsent) {
2616
onlyIfAbsent = onlyIfAbsent || false;
2617
for (var property in methods) {
2618
var value = methods[property];
2619
if (!Object.isFunction(value)) continue;
2620
if (!onlyIfAbsent || !(property in destination))
2621
destination[property] = value.methodize();
2625
function findDOMClass(tagName) {
2628
"OPTGROUP": "OptGroup", "TEXTAREA": "TextArea", "P": "Paragraph",
2629
"FIELDSET": "FieldSet", "UL": "UList", "OL": "OList", "DL": "DList",
2630
"DIR": "Directory", "H1": "Heading", "H2": "Heading", "H3": "Heading",
2631
"H4": "Heading", "H5": "Heading", "H6": "Heading", "Q": "Quote",
2632
"INS": "Mod", "DEL": "Mod", "A": "Anchor", "IMG": "Image", "CAPTION":
2633
"TableCaption", "COL": "TableCol", "COLGROUP": "TableCol", "THEAD":
2634
"TableSection", "TFOOT": "TableSection", "TBODY": "TableSection", "TR":
2635
"TableRow", "TH": "TableCell", "TD": "TableCell", "FRAMESET":
2636
"FrameSet", "IFRAME": "IFrame"
2638
if (trans[tagName]) klass = 'HTML' + trans[tagName] + 'Element';
2639
if (window[klass]) return window[klass];
2640
klass = 'HTML' + tagName + 'Element';
2641
if (window[klass]) return window[klass];
2642
klass = 'HTML' + tagName.capitalize() + 'Element';
2643
if (window[klass]) return window[klass];
2645
window[klass] = { };
2646
window[klass].prototype = document.createElement(tagName).__proto__;
2647
return window[klass];
2650
if (F.ElementExtensions) {
2651
copy(Element.Methods, HTMLElement.prototype);
2652
copy(Element.Methods.Simulated, HTMLElement.prototype, true);
2655
if (F.SpecificElementExtensions) {
2656
for (var tag in Element.Methods.ByTag) {
2657
var klass = findDOMClass(tag);
2658
if (Object.isUndefined(klass)) continue;
2659
copy(T[tag], klass.prototype);
2663
Object.extend(Element, Element.Methods);
2664
delete Element.ByTag;
2666
if (Element.extend.refresh) Element.extend.refresh();
2667
Element.cache = { };
2670
document.viewport = {
2671
getDimensions: function() {
2672
var dimensions = { };
2673
var B = Prototype.Browser;
2674
$w('width height').each(function(d) {
2675
var D = d.capitalize();
2676
dimensions[d] = (B.WebKit && !document.evaluate) ? self['inner' + D] :
2677
(B.Opera) ? document.body['client' + D] : document.documentElement['client' + D];
2682
getWidth: function() {
2683
return this.getDimensions().width;
2686
getHeight: function() {
2687
return this.getDimensions().height;
2690
getScrollOffsets: function() {
2691
return Element._returnOffset(
2692
window.pageXOffset || document.documentElement.scrollLeft || document.body.scrollLeft,
2693
window.pageYOffset || document.documentElement.scrollTop || document.body.scrollTop);
2696
/* Portions of the Selector class are derived from Jack Slocum’s DomQuery,
2697
* part of YUI-Ext version 0.40, distributed under the terms of an MIT-style
2698
* license. Please see http://www.yui-ext.com/ for more information. */
2700
var Selector = Class.create({
2701
initialize: function(expression) {
2702
this.expression = expression.strip();
2703
this.compileMatcher();
2706
shouldUseXPath: function() {
2707
if (!Prototype.BrowserFeatures.XPath) return false;
2709
var e = this.expression;
2711
// Safari 3 chokes on :*-of-type and :empty
2712
if (Prototype.Browser.WebKit &&
2713
(e.include("-of-type") || e.include(":empty")))
2716
// XPath can't do namespaced attributes, nor can it read
2717
// the "checked" property from DOM nodes
2718
if ((/(\[[\w-]*?:|:checked)/).test(this.expression))
2724
compileMatcher: function() {
2725
if (this.shouldUseXPath())
2726
return this.compileXPathMatcher();
2728
var e = this.expression, ps = Selector.patterns, h = Selector.handlers,
2729
c = Selector.criteria, le, p, m;
2731
if (Selector._cache[e]) {
2732
this.matcher = Selector._cache[e];
2736
this.matcher = ["this.matcher = function(root) {",
2737
"var r = root, h = Selector.handlers, c = false, n;"];
2739
while (e && le != e && (/\S/).test(e)) {
2743
if (m = e.match(p)) {
2744
this.matcher.push(Object.isFunction(c[i]) ? c[i](m) :
2745
new Template(c[i]).evaluate(m));
2746
e = e.replace(m[0], '');
2752
this.matcher.push("return h.unique(n);\n}");
2753
eval(this.matcher.join('\n'));
2754
Selector._cache[this.expression] = this.matcher;
2757
compileXPathMatcher: function() {
2758
var e = this.expression, ps = Selector.patterns,
2759
x = Selector.xpath, le, m;
2761
if (Selector._cache[e]) {
2762
this.xpath = Selector._cache[e]; return;
2765
this.matcher = ['.//*'];
2766
while (e && le != e && (/\S/).test(e)) {
2769
if (m = e.match(ps[i])) {
2770
this.matcher.push(Object.isFunction(x[i]) ? x[i](m) :
2771
new Template(x[i]).evaluate(m));
2772
e = e.replace(m[0], '');
2778
this.xpath = this.matcher.join('');
2779
Selector._cache[this.expression] = this.xpath;
2782
findElements: function(root) {
2783
root = root || document;
2784
if (this.xpath) return document._getElementsByXPath(this.xpath, root);
2785
return this.matcher(root);
2788
match: function(element) {
2791
var e = this.expression, ps = Selector.patterns, as = Selector.assertions;
2794
while (e && le !== e && (/\S/).test(e)) {
2798
if (m = e.match(p)) {
2799
// use the Selector.assertions methods unless the selector
2802
this.tokens.push([i, Object.clone(m)]);
2803
e = e.replace(m[0], '');
2805
// reluctantly do a document-wide search
2806
// and look for a match in the array
2807
return this.findElements(document).include(element);
2813
var match = true, name, matches;
2814
for (var i = 0, token; token = this.tokens[i]; i++) {
2815
name = token[0], matches = token[1];
2816
if (!Selector.assertions[name](element, matches)) {
2817
match = false; break;
2824
toString: function() {
2825
return this.expression;
2828
inspect: function() {
2829
return "#<Selector:" + this.expression.inspect() + ">";
2833
Object.extend(Selector, {
2839
adjacent: "/following-sibling::*[1]",
2840
laterSibling: '/following-sibling::*',
2841
tagName: function(m) {
2842
if (m[1] == '*') return '';
2843
return "[local-name()='" + m[1].toLowerCase() +
2844
"' or local-name()='" + m[1].toUpperCase() + "']";
2846
className: "[contains(concat(' ', @class, ' '), ' #{1} ')]",
2848
attrPresence: function(m) {
2849
m[1] = m[1].toLowerCase();
2850
return new Template("[@#{1}]").evaluate(m);
2853
m[1] = m[1].toLowerCase();
2854
m[3] = m[5] || m[6];
2855
return new Template(Selector.xpath.operators[m[2]]).evaluate(m);
2857
pseudo: function(m) {
2858
var h = Selector.xpath.pseudos[m[1]];
2860
if (Object.isFunction(h)) return h(m);
2861
return new Template(Selector.xpath.pseudos[m[1]]).evaluate(m);
2864
'=': "[@#{1}='#{3}']",
2865
'!=': "[@#{1}!='#{3}']",
2866
'^=': "[starts-with(@#{1}, '#{3}')]",
2867
'$=': "[substring(@#{1}, (string-length(@#{1}) - string-length('#{3}') + 1))='#{3}']",
2868
'*=': "[contains(@#{1}, '#{3}')]",
2869
'~=': "[contains(concat(' ', @#{1}, ' '), ' #{3} ')]",
2870
'|=': "[contains(concat('-', @#{1}, '-'), '-#{3}-')]"
2873
'first-child': '[not(preceding-sibling::*)]',
2874
'last-child': '[not(following-sibling::*)]',
2875
'only-child': '[not(preceding-sibling::* or following-sibling::*)]',
2876
'empty': "[count(*) = 0 and (count(text()) = 0 or translate(text(), ' \t\r\n', '') = '')]",
2877
'checked': "[@checked]",
2878
'disabled': "[@disabled]",
2879
'enabled': "[not(@disabled)]",
2880
'not': function(m) {
2881
var e = m[6], p = Selector.patterns,
2882
x = Selector.xpath, le, v;
2885
while (e && le != e && (/\S/).test(e)) {
2888
if (m = e.match(p[i])) {
2889
v = Object.isFunction(x[i]) ? x[i](m) : new Template(x[i]).evaluate(m);
2890
exclusion.push("(" + v.substring(1, v.length - 1) + ")");
2891
e = e.replace(m[0], '');
2896
return "[not(" + exclusion.join(" and ") + ")]";
2898
'nth-child': function(m) {
2899
return Selector.xpath.pseudos.nth("(count(./preceding-sibling::*) + 1) ", m);
2901
'nth-last-child': function(m) {
2902
return Selector.xpath.pseudos.nth("(count(./following-sibling::*) + 1) ", m);
2904
'nth-of-type': function(m) {
2905
return Selector.xpath.pseudos.nth("position() ", m);
2907
'nth-last-of-type': function(m) {
2908
return Selector.xpath.pseudos.nth("(last() + 1 - position()) ", m);
2910
'first-of-type': function(m) {
2911
m[6] = "1"; return Selector.xpath.pseudos['nth-of-type'](m);
2913
'last-of-type': function(m) {
2914
m[6] = "1"; return Selector.xpath.pseudos['nth-last-of-type'](m);
2916
'only-of-type': function(m) {
2917
var p = Selector.xpath.pseudos; return p['first-of-type'](m) + p['last-of-type'](m);
2919
nth: function(fragment, m) {
2920
var mm, formula = m[6], predicate;
2921
if (formula == 'even') formula = '2n+0';
2922
if (formula == 'odd') formula = '2n+1';
2923
if (mm = formula.match(/^(\d+)$/)) // digit only
2924
return '[' + fragment + "= " + mm[1] + ']';
2925
if (mm = formula.match(/^(-?\d*)?n(([+-])(\d+))?/)) { // an+b
2926
if (mm[1] == "-") mm[1] = -1;
2927
var a = mm[1] ? Number(mm[1]) : 1;
2928
var b = mm[2] ? Number(mm[2]) : 0;
2929
predicate = "[((#{fragment} - #{b}) mod #{a} = 0) and " +
2930
"((#{fragment} - #{b}) div #{a} >= 0)]";
2931
return new Template(predicate).evaluate({
2932
fragment: fragment, a: a, b: b });
2939
tagName: 'n = h.tagName(n, r, "#{1}", c); c = false;',
2940
className: 'n = h.className(n, r, "#{1}", c); c = false;',
2941
id: 'n = h.id(n, r, "#{1}", c); c = false;',
2942
attrPresence: 'n = h.attrPresence(n, r, "#{1}", c); c = false;',
2944
m[3] = (m[5] || m[6]);
2945
return new Template('n = h.attr(n, r, "#{1}", "#{3}", "#{2}", c); c = false;').evaluate(m);
2947
pseudo: function(m) {
2948
if (m[6]) m[6] = m[6].replace(/"/g, '\\"');
2949
return new Template('n = h.pseudo(n, "#{1}", "#{6}", r, c); c = false;').evaluate(m);
2951
descendant: 'c = "descendant";',
2952
child: 'c = "child";',
2953
adjacent: 'c = "adjacent";',
2954
laterSibling: 'c = "laterSibling";'
2958
// combinators must be listed first
2959
// (and descendant needs to be last combinator)
2960
laterSibling: /^\s*~\s*/,
2962
adjacent: /^\s*\+\s*/,
2966
tagName: /^\s*(\*|[\w\-]+)(\b|$)?/,
2967
id: /^#([\w\-\*]+)(\b|$)/,
2968
className: /^\.([\w\-\*]+)(\b|$)/,
2970
/^:((first|last|nth|nth-last|only)(-child|-of-type)|empty|checked|(en|dis)abled|not)(\((.*?)\))?(\b|$|(?=\s|[:+~>]))/,
2971
attrPresence: /^\[([\w]+)\]/,
2972
attr: /\[((?:[\w-]*:)?[\w-]+)\s*(?:([!^$*~|]?=)\s*((['"])([^\4]*?)\4|([^'"][^\]]*?)))?\]/
2975
// for Selector.match and Element#match
2977
tagName: function(element, matches) {
2978
return matches[1].toUpperCase() == element.tagName.toUpperCase();
2981
className: function(element, matches) {
2982
return Element.hasClassName(element, matches[1]);
2985
id: function(element, matches) {
2986
return element.id === matches[1];
2989
attrPresence: function(element, matches) {
2990
return Element.hasAttribute(element, matches[1]);
2993
attr: function(element, matches) {
2994
var nodeValue = Element.readAttribute(element, matches[1]);
2995
return nodeValue && Selector.operators[matches[2]](nodeValue, matches[5] || matches[6]);
3000
// UTILITY FUNCTIONS
3001
// joins two collections
3002
concat: function(a, b) {
3003
for (var i = 0, node; node = b[i]; i++)
3008
// marks an array of nodes for counting
3009
mark: function(nodes) {
3010
var _true = Prototype.emptyFunction;
3011
for (var i = 0, node; node = nodes[i]; i++)
3012
node._countedByPrototype = _true;
3016
unmark: function(nodes) {
3017
for (var i = 0, node; node = nodes[i]; i++)
3018
node._countedByPrototype = undefined;
3022
// mark each child node with its position (for nth calls)
3023
// "ofType" flag indicates whether we're indexing for nth-of-type
3024
// rather than nth-child
3025
index: function(parentNode, reverse, ofType) {
3026
parentNode._countedByPrototype = Prototype.emptyFunction;
3028
for (var nodes = parentNode.childNodes, i = nodes.length - 1, j = 1; i >= 0; i--) {
3029
var node = nodes[i];
3030
if (node.nodeType == 1 && (!ofType || node._countedByPrototype)) node.nodeIndex = j++;
3033
for (var i = 0, j = 1, nodes = parentNode.childNodes; node = nodes[i]; i++)
3034
if (node.nodeType == 1 && (!ofType || node._countedByPrototype)) node.nodeIndex = j++;
3038
// filters out duplicates and extends all nodes
3039
unique: function(nodes) {
3040
if (nodes.length == 0) return nodes;
3041
var results = [], n;
3042
for (var i = 0, l = nodes.length; i < l; i++)
3043
if (!(n = nodes[i])._countedByPrototype) {
3044
n._countedByPrototype = Prototype.emptyFunction;
3045
results.push(Element.extend(n));
3047
return Selector.handlers.unmark(results);
3050
// COMBINATOR FUNCTIONS
3051
descendant: function(nodes) {
3052
var h = Selector.handlers;
3053
for (var i = 0, results = [], node; node = nodes[i]; i++)
3054
h.concat(results, node.getElementsByTagName('*'));
3058
child: function(nodes) {
3059
var h = Selector.handlers;
3060
for (var i = 0, results = [], node; node = nodes[i]; i++) {
3061
for (var j = 0, child; child = node.childNodes[j]; j++)
3062
if (child.nodeType == 1 && child.tagName != '!') results.push(child);
3067
adjacent: function(nodes) {
3068
for (var i = 0, results = [], node; node = nodes[i]; i++) {
3069
var next = this.nextElementSibling(node);
3070
if (next) results.push(next);
3075
laterSibling: function(nodes) {
3076
var h = Selector.handlers;
3077
for (var i = 0, results = [], node; node = nodes[i]; i++)
3078
h.concat(results, Element.nextSiblings(node));
3082
nextElementSibling: function(node) {
3083
while (node = node.nextSibling)
3084
if (node.nodeType == 1) return node;
3088
previousElementSibling: function(node) {
3089
while (node = node.previousSibling)
3090
if (node.nodeType == 1) return node;
3095
tagName: function(nodes, root, tagName, combinator) {
3096
var uTagName = tagName.toUpperCase();
3097
var results = [], h = Selector.handlers;
3100
// fastlane for ordinary descendant combinators
3101
if (combinator == "descendant") {
3102
for (var i = 0, node; node = nodes[i]; i++)
3103
h.concat(results, node.getElementsByTagName(tagName));
3105
} else nodes = this[combinator](nodes);
3106
if (tagName == "*") return nodes;
3108
for (var i = 0, node; node = nodes[i]; i++)
3109
if (node.tagName.toUpperCase() === uTagName) results.push(node);
3111
} else return root.getElementsByTagName(tagName);
3114
id: function(nodes, root, id, combinator) {
3115
var targetNode = $(id), h = Selector.handlers;
3116
if (!targetNode) return [];
3117
if (!nodes && root == document) return [targetNode];
3120
if (combinator == 'child') {
3121
for (var i = 0, node; node = nodes[i]; i++)
3122
if (targetNode.parentNode == node) return [targetNode];
3123
} else if (combinator == 'descendant') {
3124
for (var i = 0, node; node = nodes[i]; i++)
3125
if (Element.descendantOf(targetNode, node)) return [targetNode];
3126
} else if (combinator == 'adjacent') {
3127
for (var i = 0, node; node = nodes[i]; i++)
3128
if (Selector.handlers.previousElementSibling(targetNode) == node)
3129
return [targetNode];
3130
} else nodes = h[combinator](nodes);
3132
for (var i = 0, node; node = nodes[i]; i++)
3133
if (node == targetNode) return [targetNode];
3136
return (targetNode && Element.descendantOf(targetNode, root)) ? [targetNode] : [];
3139
className: function(nodes, root, className, combinator) {
3140
if (nodes && combinator) nodes = this[combinator](nodes);
3141
return Selector.handlers.byClassName(nodes, root, className);
3144
byClassName: function(nodes, root, className) {
3145
if (!nodes) nodes = Selector.handlers.descendant([root]);
3146
var needle = ' ' + className + ' ';
3147
for (var i = 0, results = [], node, nodeClassName; node = nodes[i]; i++) {
3148
nodeClassName = node.className;
3149
if (nodeClassName.length == 0) continue;
3150
if (nodeClassName == className || (' ' + nodeClassName + ' ').include(needle))
3156
attrPresence: function(nodes, root, attr, combinator) {
3157
if (!nodes) nodes = root.getElementsByTagName("*");
3158
if (nodes && combinator) nodes = this[combinator](nodes);
3160
for (var i = 0, node; node = nodes[i]; i++)
3161
if (Element.hasAttribute(node, attr)) results.push(node);
3165
attr: function(nodes, root, attr, value, operator, combinator) {
3166
if (!nodes) nodes = root.getElementsByTagName("*");
3167
if (nodes && combinator) nodes = this[combinator](nodes);
3168
var handler = Selector.operators[operator], results = [];
3169
for (var i = 0, node; node = nodes[i]; i++) {
3170
var nodeValue = Element.readAttribute(node, attr);
3171
if (nodeValue === null) continue;
3172
if (handler(nodeValue, value)) results.push(node);
3177
pseudo: function(nodes, name, value, root, combinator) {
3178
if (nodes && combinator) nodes = this[combinator](nodes);
3179
if (!nodes) nodes = root.getElementsByTagName("*");
3180
return Selector.pseudos[name](nodes, value, root);
3185
'first-child': function(nodes, value, root) {
3186
for (var i = 0, results = [], node; node = nodes[i]; i++) {
3187
if (Selector.handlers.previousElementSibling(node)) continue;
3192
'last-child': function(nodes, value, root) {
3193
for (var i = 0, results = [], node; node = nodes[i]; i++) {
3194
if (Selector.handlers.nextElementSibling(node)) continue;
3199
'only-child': function(nodes, value, root) {
3200
var h = Selector.handlers;
3201
for (var i = 0, results = [], node; node = nodes[i]; i++)
3202
if (!h.previousElementSibling(node) && !h.nextElementSibling(node))
3206
'nth-child': function(nodes, formula, root) {
3207
return Selector.pseudos.nth(nodes, formula, root);
3209
'nth-last-child': function(nodes, formula, root) {
3210
return Selector.pseudos.nth(nodes, formula, root, true);
3212
'nth-of-type': function(nodes, formula, root) {
3213
return Selector.pseudos.nth(nodes, formula, root, false, true);
3215
'nth-last-of-type': function(nodes, formula, root) {
3216
return Selector.pseudos.nth(nodes, formula, root, true, true);
3218
'first-of-type': function(nodes, formula, root) {
3219
return Selector.pseudos.nth(nodes, "1", root, false, true);
3221
'last-of-type': function(nodes, formula, root) {
3222
return Selector.pseudos.nth(nodes, "1", root, true, true);
3224
'only-of-type': function(nodes, formula, root) {
3225
var p = Selector.pseudos;
3226
return p['last-of-type'](p['first-of-type'](nodes, formula, root), formula, root);
3229
// handles the an+b logic
3230
getIndices: function(a, b, total) {
3231
if (a == 0) return b > 0 ? [b] : [];
3232
return $R(1, total).inject([], function(memo, i) {
3233
if (0 == (i - b) % a && (i - b) / a >= 0) memo.push(i);
3238
// handles nth(-last)-child, nth(-last)-of-type, and (first|last)-of-type
3239
nth: function(nodes, formula, root, reverse, ofType) {
3240
if (nodes.length == 0) return [];
3241
if (formula == 'even') formula = '2n+0';
3242
if (formula == 'odd') formula = '2n+1';
3243
var h = Selector.handlers, results = [], indexed = [], m;
3245
for (var i = 0, node; node = nodes[i]; i++) {
3246
if (!node.parentNode._countedByPrototype) {
3247
h.index(node.parentNode, reverse, ofType);
3248
indexed.push(node.parentNode);
3251
if (formula.match(/^\d+$/)) { // just a number
3252
formula = Number(formula);
3253
for (var i = 0, node; node = nodes[i]; i++)
3254
if (node.nodeIndex == formula) results.push(node);
3255
} else if (m = formula.match(/^(-?\d*)?n(([+-])(\d+))?/)) { // an+b
3256
if (m[1] == "-") m[1] = -1;
3257
var a = m[1] ? Number(m[1]) : 1;
3258
var b = m[2] ? Number(m[2]) : 0;
3259
var indices = Selector.pseudos.getIndices(a, b, nodes.length);
3260
for (var i = 0, node, l = indices.length; node = nodes[i]; i++) {
3261
for (var j = 0; j < l; j++)
3262
if (node.nodeIndex == indices[j]) results.push(node);
3270
'empty': function(nodes, value, root) {
3271
for (var i = 0, results = [], node; node = nodes[i]; i++) {
3272
// IE treats comments as element nodes
3273
if (node.tagName == '!' || (node.firstChild && !node.innerHTML.match(/^\s*$/))) continue;
3279
'not': function(nodes, selector, root) {
3280
var h = Selector.handlers, selectorType, m;
3281
var exclusions = new Selector(selector).findElements(root);
3283
for (var i = 0, results = [], node; node = nodes[i]; i++)
3284
if (!node._countedByPrototype) results.push(node);
3285
h.unmark(exclusions);
3289
'enabled': function(nodes, value, root) {
3290
for (var i = 0, results = [], node; node = nodes[i]; i++)
3291
if (!node.disabled) results.push(node);
3295
'disabled': function(nodes, value, root) {
3296
for (var i = 0, results = [], node; node = nodes[i]; i++)
3297
if (node.disabled) results.push(node);
3301
'checked': function(nodes, value, root) {
3302
for (var i = 0, results = [], node; node = nodes[i]; i++)
3303
if (node.checked) results.push(node);
3309
'=': function(nv, v) { return nv == v; },
3310
'!=': function(nv, v) { return nv != v; },
3311
'^=': function(nv, v) { return nv.startsWith(v); },
3312
'$=': function(nv, v) { return nv.endsWith(v); },
3313
'*=': function(nv, v) { return nv.include(v); },
3314
'~=': function(nv, v) { return (' ' + nv + ' ').include(' ' + v + ' '); },
3315
'|=': function(nv, v) { return ('-' + nv.toUpperCase() + '-').include('-' + v.toUpperCase() + '-'); }
3318
split: function(expression) {
3319
var expressions = [];
3320
expression.scan(/(([\w#:.~>+()\s-]+|\*|\[.*?\])+)\s*(,|$)/, function(m) {
3321
expressions.push(m[1].strip());
3326
matchElements: function(elements, expression) {
3327
var matches = $$(expression), h = Selector.handlers;
3329
for (var i = 0, results = [], element; element = elements[i]; i++)
3330
if (element._countedByPrototype) results.push(element);
3335
findElement: function(elements, expression, index) {
3336
if (Object.isNumber(expression)) {
3337
index = expression; expression = false;
3339
return Selector.matchElements(elements, expression || '*')[index || 0];
3342
findChildElements: function(element, expressions) {
3343
expressions = Selector.split(expressions.join(','));
3344
var results = [], h = Selector.handlers;
3345
for (var i = 0, l = expressions.length, selector; i < l; i++) {
3346
selector = new Selector(expressions[i].strip());
3347
h.concat(results, selector.findElements(element));
3349
return (l > 1) ? h.unique(results) : results;
3353
if (Prototype.Browser.IE) {
3354
Object.extend(Selector.handlers, {
3355
// IE returns comment nodes on getElementsByTagName("*").
3357
concat: function(a, b) {
3358
for (var i = 0, node; node = b[i]; i++)
3359
if (node.tagName !== "!") a.push(node);
3363
// IE improperly serializes _countedByPrototype in (inner|outer)HTML.
3364
unmark: function(nodes) {
3365
for (var i = 0, node; node = nodes[i]; i++)
3366
node.removeAttribute('_countedByPrototype');
3373
return Selector.findChildElements(document, $A(arguments));
3376
reset: function(form) {
3381
serializeElements: function(elements, options) {
3382
if (typeof options != 'object') options = { hash: !!options };
3383
else if (Object.isUndefined(options.hash)) options.hash = true;
3384
var key, value, submitted = false, submit = options.submit;
3386
var data = elements.inject({ }, function(result, element) {
3387
if (!element.disabled && element.name) {
3388
key = element.name; value = $(element).getValue();
3389
if (value != null && (element.type != 'submit' || (!submitted &&
3390
submit !== false && (!submit || key == submit) && (submitted = true)))) {
3391
if (key in result) {
3392
// a key is already present; construct an array of values
3393
if (!Object.isArray(result[key])) result[key] = [result[key]];
3394
result[key].push(value);
3396
else result[key] = value;
3402
return options.hash ? data : Object.toQueryString(data);
3407
serialize: function(form, options) {
3408
return Form.serializeElements(Form.getElements(form), options);
3411
getElements: function(form) {
3412
return $A($(form).getElementsByTagName('*')).inject([],
3413
function(elements, child) {
3414
if (Form.Element.Serializers[child.tagName.toLowerCase()])
3415
elements.push(Element.extend(child));
3421
getInputs: function(form, typeName, name) {
3423
var inputs = form.getElementsByTagName('input');
3425
if (!typeName && !name) return $A(inputs).map(Element.extend);
3427
for (var i = 0, matchingInputs = [], length = inputs.length; i < length; i++) {
3428
var input = inputs[i];
3429
if ((typeName && input.type != typeName) || (name && input.name != name))
3431
matchingInputs.push(Element.extend(input));
3434
return matchingInputs;
3437
disable: function(form) {
3439
Form.getElements(form).invoke('disable');
3443
enable: function(form) {
3445
Form.getElements(form).invoke('enable');
3449
findFirstElement: function(form) {
3450
var elements = $(form).getElements().findAll(function(element) {
3451
return 'hidden' != element.type && !element.disabled;
3453
var firstByIndex = elements.findAll(function(element) {
3454
return element.hasAttribute('tabIndex') && element.tabIndex >= 0;
3455
}).sortBy(function(element) { return element.tabIndex }).first();
3457
return firstByIndex ? firstByIndex : elements.find(function(element) {
3458
return ['input', 'select', 'textarea'].include(element.tagName.toLowerCase());
3462
focusFirstElement: function(form) {
3464
form.findFirstElement().activate();
3468
request: function(form, options) {
3469
form = $(form), options = Object.clone(options || { });
3471
var params = options.parameters, action = form.readAttribute('action') || '';
3472
if (action.blank()) action = window.location.href;
3473
options.parameters = form.serialize(true);
3476
if (Object.isString(params)) params = params.toQueryParams();
3477
Object.extend(options.parameters, params);
3480
if (form.hasAttribute('method') && !options.method)
3481
options.method = form.method;
3483
return new Ajax.Request(action, options);
3487
/*--------------------------------------------------------------------------*/
3490
focus: function(element) {
3495
select: function(element) {
3496
$(element).select();
3501
Form.Element.Methods = {
3502
serialize: function(element) {
3503
element = $(element);
3504
if (!element.disabled && element.name) {
3505
var value = element.getValue();
3506
if (value != undefined) {
3508
pair[element.name] = value;
3509
return Object.toQueryString(pair);
3515
getValue: function(element) {
3516
element = $(element);
3517
var method = element.tagName.toLowerCase();
3518
return Form.Element.Serializers[method](element);
3521
setValue: function(element, value) {
3522
element = $(element);
3523
var method = element.tagName.toLowerCase();
3524
Form.Element.Serializers[method](element, value);
3528
clear: function(element) {
3529
$(element).value = '';
3533
present: function(element) {
3534
return $(element).value != '';
3537
activate: function(element) {
3538
element = $(element);
3541
if (element.select && (element.tagName.toLowerCase() != 'input' ||
3542
!['button', 'reset', 'submit'].include(element.type)))
3548
disable: function(element) {
3549
element = $(element);
3551
element.disabled = true;
3555
enable: function(element) {
3556
element = $(element);
3557
element.disabled = false;
3562
/*--------------------------------------------------------------------------*/
3564
var Field = Form.Element;
3565
var $F = Form.Element.Methods.getValue;
3567
/*--------------------------------------------------------------------------*/
3569
Form.Element.Serializers = {
3570
input: function(element, value) {
3571
switch (element.type.toLowerCase()) {
3574
return Form.Element.Serializers.inputSelector(element, value);
3576
return Form.Element.Serializers.textarea(element, value);
3580
inputSelector: function(element, value) {
3581
if (Object.isUndefined(value)) return element.checked ? element.value : null;
3582
else element.checked = !!value;
3585
textarea: function(element, value) {
3586
if (Object.isUndefined(value)) return element.value;
3587
else element.value = value;
3590
select: function(element, index) {
3591
if (Object.isUndefined(index))
3592
return this[element.type == 'select-one' ?
3593
'selectOne' : 'selectMany'](element);
3595
var opt, value, single = !Object.isArray(index);
3596
for (var i = 0, length = element.length; i < length; i++) {
3597
opt = element.options[i];
3598
value = this.optionValue(opt);
3600
if (value == index) {
3601
opt.selected = true;
3605
else opt.selected = index.include(value);
3610
selectOne: function(element) {
3611
var index = element.selectedIndex;
3612
return index >= 0 ? this.optionValue(element.options[index]) : null;
3615
selectMany: function(element) {
3616
var values, length = element.length;
3617
if (!length) return null;
3619
for (var i = 0, values = []; i < length; i++) {
3620
var opt = element.options[i];
3621
if (opt.selected) values.push(this.optionValue(opt));
3626
optionValue: function(opt) {
3627
// extend element because hasAttribute may not be native
3628
return Element.extend(opt).hasAttribute('value') ? opt.value : opt.text;
3632
/*--------------------------------------------------------------------------*/
3634
Abstract.TimedObserver = Class.create(PeriodicalExecuter, {
3635
initialize: function($super, element, frequency, callback) {
3636
$super(callback, frequency);
3637
this.element = $(element);
3638
this.lastValue = this.getValue();
3641
execute: function() {
3642
var value = this.getValue();
3643
if (Object.isString(this.lastValue) && Object.isString(value) ?
3644
this.lastValue != value : String(this.lastValue) != String(value)) {
3645
this.callback(this.element, value);
3646
this.lastValue = value;
3651
Form.Element.Observer = Class.create(Abstract.TimedObserver, {
3652
getValue: function() {
3653
return Form.Element.getValue(this.element);
3657
Form.Observer = Class.create(Abstract.TimedObserver, {
3658
getValue: function() {
3659
return Form.serialize(this.element);
3663
/*--------------------------------------------------------------------------*/
3665
Abstract.EventObserver = Class.create({
3666
initialize: function(element, callback) {
3667
this.element = $(element);
3668
this.callback = callback;
3670
this.lastValue = this.getValue();
3671
if (this.element.tagName.toLowerCase() == 'form')
3672
this.registerFormCallbacks();
3674
this.registerCallback(this.element);
3677
onElementEvent: function() {
3678
var value = this.getValue();
3679
if (this.lastValue != value) {
3680
this.callback(this.element, value);
3681
this.lastValue = value;
3685
registerFormCallbacks: function() {
3686
Form.getElements(this.element).each(this.registerCallback, this);
3689
registerCallback: function(element) {
3691
switch (element.type.toLowerCase()) {
3694
Event.observe(element, 'click', this.onElementEvent.bind(this));
3697
Event.observe(element, 'change', this.onElementEvent.bind(this));
3704
Form.Element.EventObserver = Class.create(Abstract.EventObserver, {
3705
getValue: function() {
3706
return Form.Element.getValue(this.element);
3710
Form.EventObserver = Class.create(Abstract.EventObserver, {
3711
getValue: function() {
3712
return Form.serialize(this.element);
3715
if (!window.Event) var Event = { };
3717
Object.extend(Event, {
3735
relatedTarget: function(event) {
3737
switch(event.type) {
3738
case 'mouseover': element = event.fromElement; break;
3739
case 'mouseout': element = event.toElement; break;
3740
default: return null;
3742
return Element.extend(element);
3746
Event.Methods = (function() {
3749
if (Prototype.Browser.IE) {
3750
var buttonMap = { 0: 1, 1: 4, 2: 2 };
3751
isButton = function(event, code) {
3752
return event.button == buttonMap[code];
3755
} else if (Prototype.Browser.WebKit) {
3756
isButton = function(event, code) {
3758
case 0: return event.which == 1 && !event.metaKey;
3759
case 1: return event.which == 1 && event.metaKey;
3760
default: return false;
3765
isButton = function(event, code) {
3766
return event.which ? (event.which === code + 1) : (event.button === code);
3771
isLeftClick: function(event) { return isButton(event, 0) },
3772
isMiddleClick: function(event) { return isButton(event, 1) },
3773
isRightClick: function(event) { return isButton(event, 2) },
3775
element: function(event) {
3776
var node = Event.extend(event).target;
3777
return Element.extend(node.nodeType == Node.TEXT_NODE ? node.parentNode : node);
3780
findElement: function(event, expression) {
3781
var element = Event.element(event);
3782
if (!expression) return element;
3783
var elements = [element].concat(element.ancestors());
3784
return Selector.findElement(elements, expression, 0);
3787
pointer: function(event) {
3789
x: event.pageX || (event.clientX +
3790
(document.documentElement.scrollLeft || document.body.scrollLeft)),
3791
y: event.pageY || (event.clientY +
3792
(document.documentElement.scrollTop || document.body.scrollTop))
3796
pointerX: function(event) { return Event.pointer(event).x },
3797
pointerY: function(event) { return Event.pointer(event).y },
3799
stop: function(event) {
3800
Event.extend(event);
3801
event.preventDefault();
3802
event.stopPropagation();
3803
event.stopped = true;
3808
Event.extend = (function() {
3809
var methods = Object.keys(Event.Methods).inject({ }, function(m, name) {
3810
m[name] = Event.Methods[name].methodize();
3814
if (Prototype.Browser.IE) {
3815
Object.extend(methods, {
3816
stopPropagation: function() { this.cancelBubble = true },
3817
preventDefault: function() { this.returnValue = false },
3818
inspect: function() { return "[object Event]" }
3821
return function(event) {
3822
if (!event) return false;
3823
if (event._extendedByPrototype) return event;
3825
event._extendedByPrototype = Prototype.emptyFunction;
3826
var pointer = Event.pointer(event);
3827
Object.extend(event, {
3828
target: event.srcElement,
3829
relatedTarget: Event.relatedTarget(event),
3833
return Object.extend(event, methods);
3837
Event.prototype = Event.prototype || document.createEvent("HTMLEvents").__proto__;
3838
Object.extend(Event.prototype, methods);
3843
Object.extend(Event, (function() {
3844
var cache = Event.cache;
3846
function getEventID(element) {
3847
if (element._prototypeEventID) return element._prototypeEventID[0];
3848
arguments.callee.id = arguments.callee.id || 1;
3849
return element._prototypeEventID = [++arguments.callee.id];
3852
function getDOMEventName(eventName) {
3853
if (eventName && eventName.include(':')) return "dataavailable";
3857
function getCacheForID(id) {
3858
return cache[id] = cache[id] || { };
3861
function getWrappersForEventName(id, eventName) {
3862
var c = getCacheForID(id);
3863
return c[eventName] = c[eventName] || [];
3866
function createWrapper(element, eventName, handler) {
3867
var id = getEventID(element);
3868
var c = getWrappersForEventName(id, eventName);
3869
if (c.pluck("handler").include(handler)) return false;
3871
var wrapper = function(event) {
3872
if (!Event || !Event.extend ||
3873
(event.eventName && event.eventName != eventName))
3876
Event.extend(event);
3877
handler.call(element, event);
3880
wrapper.handler = handler;
3885
function findWrapper(id, eventName, handler) {
3886
var c = getWrappersForEventName(id, eventName);
3887
return c.find(function(wrapper) { return wrapper.handler == handler });
3890
function destroyWrapper(id, eventName, handler) {
3891
var c = getCacheForID(id);
3892
if (!c[eventName]) return false;
3893
c[eventName] = c[eventName].without(findWrapper(id, eventName, handler));
3896
function destroyCache() {
3897
for (var id in cache)
3898
for (var eventName in cache[id])
3899
cache[id][eventName] = null;
3902
if (window.attachEvent) {
3903
window.attachEvent("onunload", destroyCache);
3907
observe: function(element, eventName, handler) {
3908
element = $(element);
3909
var name = getDOMEventName(eventName);
3911
var wrapper = createWrapper(element, eventName, handler);
3912
if (!wrapper) return element;
3914
if (element.addEventListener) {
3915
element.addEventListener(name, wrapper, false);
3917
element.attachEvent("on" + name, wrapper);
3923
stopObserving: function(element, eventName, handler) {
3924
element = $(element);
3925
var id = getEventID(element), name = getDOMEventName(eventName);
3927
if (!handler && eventName) {
3928
getWrappersForEventName(id, eventName).each(function(wrapper) {
3929
element.stopObserving(eventName, wrapper.handler);
3933
} else if (!eventName) {
3934
Object.keys(getCacheForID(id)).each(function(eventName) {
3935
element.stopObserving(eventName);
3940
var wrapper = findWrapper(id, eventName, handler);
3941
if (!wrapper) return element;
3943
if (element.removeEventListener) {
3944
element.removeEventListener(name, wrapper, false);
3946
element.detachEvent("on" + name, wrapper);
3949
destroyWrapper(id, eventName, handler);
3954
fire: function(element, eventName, memo) {
3955
element = $(element);
3956
if (element == document && document.createEvent && !element.dispatchEvent)
3957
element = document.documentElement;
3960
if (document.createEvent) {
3961
event = document.createEvent("HTMLEvents");
3962
event.initEvent("dataavailable", true, true);
3964
event = document.createEventObject();
3965
event.eventType = "ondataavailable";
3968
event.eventName = eventName;
3969
event.memo = memo || { };
3971
if (document.createEvent) {
3972
element.dispatchEvent(event);
3974
element.fireEvent(event.eventType, event);
3977
return Event.extend(event);
3982
Object.extend(Event, Event.Methods);
3984
Element.addMethods({
3986
observe: Event.observe,
3987
stopObserving: Event.stopObserving
3990
Object.extend(document, {
3991
fire: Element.Methods.fire.methodize(),
3992
observe: Element.Methods.observe.methodize(),
3993
stopObserving: Element.Methods.stopObserving.methodize(),
3998
/* Support for the DOMContentLoaded event is based on work by Dan Webb,
3999
Matthias Miller, Dean Edwards and John Resig. */
4003
function fireContentLoadedEvent() {
4004
if (document.loaded) return;
4005
if (timer) window.clearInterval(timer);
4006
document.fire("dom:loaded");
4007
document.loaded = true;
4010
if (document.addEventListener) {
4011
if (Prototype.Browser.WebKit) {
4012
timer = window.setInterval(function() {
4013
if (/loaded|complete/.test(document.readyState))
4014
fireContentLoadedEvent();
4017
Event.observe(window, "load", fireContentLoadedEvent);
4020
document.addEventListener("DOMContentLoaded",
4021
fireContentLoadedEvent, false);
4025
document.write("<script id=__onDOMContentLoaded defer src=//:><\/script>");
4026
$("__onDOMContentLoaded").onreadystatechange = function() {
4027
if (this.readyState == "complete") {
4028
this.onreadystatechange = null;
4029
fireContentLoadedEvent();
4034
/*------------------------------- DEPRECATED -------------------------------*/
4036
Hash.toQueryString = Object.toQueryString;
4038
var Toggle = { display: Element.toggle };
4040
Element.Methods.childOf = Element.Methods.descendantOf;
4043
Before: function(element, content) {
4044
return Element.insert(element, {before:content});
4047
Top: function(element, content) {
4048
return Element.insert(element, {top:content});
4051
Bottom: function(element, content) {
4052
return Element.insert(element, {bottom:content});
4055
After: function(element, content) {
4056
return Element.insert(element, {after:content});
4060
var $continue = new Error('"throw $continue" is deprecated, use "return" instead');
4062
// This should be moved to script.aculo.us; notice the deprecated methods
4063
// further below, that map to the newer Element methods.
4065
// set to true if needed, warning: firefox performance problems
4066
// NOT neeeded for page scrolling, only if draggable contained in
4067
// scrollable elements
4068
includeScrollOffsets: false,
4070
// must be called before calling withinIncludingScrolloffset, every time the
4072
prepare: function() {
4073
this.deltaX = window.pageXOffset
4074
|| document.documentElement.scrollLeft
4075
|| document.body.scrollLeft
4077
this.deltaY = window.pageYOffset
4078
|| document.documentElement.scrollTop
4079
|| document.body.scrollTop
4083
// caches x/y coordinate pair to use with overlap
4084
within: function(element, x, y) {
4085
if (this.includeScrollOffsets)
4086
return this.withinIncludingScrolloffsets(element, x, y);
4089
this.offset = Element.cumulativeOffset(element);
4091
return (y >= this.offset[1] &&
4092
y < this.offset[1] + element.offsetHeight &&
4093
x >= this.offset[0] &&
4094
x < this.offset[0] + element.offsetWidth);
4097
withinIncludingScrolloffsets: function(element, x, y) {
4098
var offsetcache = Element.cumulativeScrollOffset(element);
4100
this.xcomp = x + offsetcache[0] - this.deltaX;
4101
this.ycomp = y + offsetcache[1] - this.deltaY;
4102
this.offset = Element.cumulativeOffset(element);
4104
return (this.ycomp >= this.offset[1] &&
4105
this.ycomp < this.offset[1] + element.offsetHeight &&
4106
this.xcomp >= this.offset[0] &&
4107
this.xcomp < this.offset[0] + element.offsetWidth);
4110
// within must be called directly before
4111
overlap: function(mode, element) {
4112
if (!mode) return 0;
4113
if (mode == 'vertical')
4114
return ((this.offset[1] + element.offsetHeight) - this.ycomp) /
4115
element.offsetHeight;
4116
if (mode == 'horizontal')
4117
return ((this.offset[0] + element.offsetWidth) - this.xcomp) /
4118
element.offsetWidth;
4121
// Deprecation layer -- use newer Element methods now (1.5.2).
4123
cumulativeOffset: Element.Methods.cumulativeOffset,
4125
positionedOffset: Element.Methods.positionedOffset,
4127
absolutize: function(element) {
4129
return Element.absolutize(element);
4132
relativize: function(element) {
4134
return Element.relativize(element);
4137
realOffset: Element.Methods.cumulativeScrollOffset,
4139
offsetParent: Element.Methods.getOffsetParent,
4141
page: Element.Methods.viewportOffset,
4143
clone: function(source, target, options) {
4144
options = options || { };
4145
return Element.clonePosition(target, source, options);
4149
/*--------------------------------------------------------------------------*/
4151
if (!document.getElementsByClassName) document.getElementsByClassName = function(instanceMethods){
4152
function iter(name) {
4153
return name.blank() ? null : "[contains(concat(' ', @class, ' '), ' " + name + " ')]";
4156
instanceMethods.getElementsByClassName = Prototype.BrowserFeatures.XPath ?
4157
function(element, className) {
4158
className = className.toString().strip();
4159
var cond = /\s/.test(className) ? $w(className).map(iter).join('') : iter(className);
4160
return cond ? document._getElementsByXPath('.//*' + cond, element) : [];
4161
} : function(element, className) {
4162
className = className.toString().strip();
4163
var elements = [], classNames = (/\s/.test(className) ? $w(className) : null);
4164
if (!classNames && !className) return elements;
4166
var nodes = $(element).getElementsByTagName('*');
4167
className = ' ' + className + ' ';
4169
for (var i = 0, child, cn; child = nodes[i]; i++) {
4170
if (child.className && (cn = ' ' + child.className + ' ') && (cn.include(className) ||
4171
(classNames && classNames.all(function(name) {
4172
return !name.toString().blank() && cn.include(' ' + name + ' ');
4174
elements.push(Element.extend(child));
4179
return function(className, parentElement) {
4180
return $(parentElement || document.body).getElementsByClassName(className);
4184
/*--------------------------------------------------------------------------*/
4186
Element.ClassNames = Class.create();
4187
Element.ClassNames.prototype = {
4188
initialize: function(element) {
4189
this.element = $(element);
4192
_each: function(iterator) {
4193
this.element.className.split(/\s+/).select(function(name) {
4194
return name.length > 0;
4198
set: function(className) {
4199
this.element.className = className;
4202
add: function(classNameToAdd) {
4203
if (this.include(classNameToAdd)) return;
4204
this.set($A(this).concat(classNameToAdd).join(' '));
4207
remove: function(classNameToRemove) {
4208
if (!this.include(classNameToRemove)) return;
4209
this.set($A(this).without(classNameToRemove).join(' '));
4212
toString: function() {
4213
return $A(this).join(' ');
4217
Object.extend(Element.ClassNames.prototype, Enumerable);
4219
/*--------------------------------------------------------------------------*/
4221
Element.addMethods();
b'\\ No newline at end of file'