1
/* Prototype JavaScript framework, version 1.6.0.1
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* (c) 2005-2007 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 = [];
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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) };
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})(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;
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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) {
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if (Object.isUndefined(object)) return 'undefined';
112
if (object === null) return 'null';
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return object.inspect ? object.inspect() : object.toString();
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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';
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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))
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results.push(property.toJSON() + ': ' + value);
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return '{' + results.join(', ') + '}';
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toQueryString: function(object) {
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return $H(object).toQueryString();
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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]);
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clone: function(object) {
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return Object.extend({ }, object);
169
isElement: function(object) {
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return object && object.nodeType == 1;
173
isArray: function(object) {
174
return object && object.constructor === Array;
177
isHash: function(object) {
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return object instanceof Hash;
181
isFunction: function(object) {
182
return typeof object == "function";
185
isString: function(object) {
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return typeof object == "string";
189
isNumber: function(object) {
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return typeof object == "number";
193
isUndefined: function(object) {
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return typeof object == "undefined";
198
Object.extend(Function.prototype, {
199
argumentNames: function() {
200
var names = this.toString().match(/^[\s\(]*function[^(]*\((.*?)\)/)[1].split(",").invoke("strip");
201
return names.length == 1 && !names[0] ? [] : names;
205
if (arguments.length < 2 && Object.isUndefined(arguments[0])) return this;
206
var __method = this, args = $A(arguments), object = args.shift();
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return __method.apply(object, args.concat($A(arguments)));
212
bindAsEventListener: function() {
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var __method = this, args = $A(arguments), object = args.shift();
214
return function(event) {
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return __method.apply(object, [event || window.event].concat(args));
220
if (!arguments.length) return this;
221
var __method = this, args = $A(arguments);
223
return __method.apply(this, args.concat($A(arguments)));
228
var __method = this, args = $A(arguments), timeout = args.shift() * 1000;
229
return window.setTimeout(function() {
230
return __method.apply(__method, args);
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wrap: function(wrapper) {
237
return wrapper.apply(this, [__method.bind(this)].concat($A(arguments)));
241
methodize: function() {
242
if (this._methodized) return this._methodized;
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return this._methodized = function() {
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return __method.apply(null, [this].concat($A(arguments)));
250
Function.prototype.defer = Function.prototype.delay.curry(0.01);
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Date.prototype.toJSON = function() {
253
return '"' + this.getUTCFullYear() + '-' +
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(this.getUTCMonth() + 1).toPaddedString(2) + '-' +
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this.getUTCDate().toPaddedString(2) + 'T' +
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this.getUTCHours().toPaddedString(2) + ':' +
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this.getUTCMinutes().toPaddedString(2) + ':' +
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this.getUTCSeconds().toPaddedString(2) + 'Z"';
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for (var i = 0, length = arguments.length; i < length; i++) {
266
var lambda = arguments[i];
268
returnValue = lambda();
277
RegExp.prototype.match = RegExp.prototype.test;
279
RegExp.escape = function(str) {
280
return String(str).replace(/([.*+?^=!:${}()|[\]\/\\])/g, '\\$1');
283
/*--------------------------------------------------------------------------*/
285
var PeriodicalExecuter = Class.create({
286
initialize: function(callback, frequency) {
287
this.callback = callback;
288
this.frequency = frequency;
289
this.currentlyExecuting = false;
291
this.registerCallback();
294
registerCallback: function() {
295
this.timer = setInterval(this.onTimerEvent.bind(this), this.frequency * 1000);
298
execute: function() {
303
if (!this.timer) return;
304
clearInterval(this.timer);
308
onTimerEvent: function() {
309
if (!this.currentlyExecuting) {
311
this.currentlyExecuting = true;
314
this.currentlyExecuting = false;
319
Object.extend(String, {
320
interpret: function(value) {
321
return value == null ? '' : String(value);
333
Object.extend(String.prototype, {
334
gsub: function(pattern, replacement) {
335
var result = '', source = this, match;
336
replacement = arguments.callee.prepareReplacement(replacement);
338
while (source.length > 0) {
339
if (match = source.match(pattern)) {
340
result += source.slice(0, match.index);
341
result += String.interpret(replacement(match));
342
source = source.slice(match.index + match[0].length);
344
result += source, source = '';
350
sub: function(pattern, replacement, count) {
351
replacement = this.gsub.prepareReplacement(replacement);
352
count = Object.isUndefined(count) ? 1 : count;
354
return this.gsub(pattern, function(match) {
355
if (--count < 0) return match[0];
356
return replacement(match);
360
scan: function(pattern, iterator) {
361
this.gsub(pattern, iterator);
365
truncate: function(length, truncation) {
366
length = length || 30;
367
truncation = Object.isUndefined(truncation) ? '...' : truncation;
368
return this.length > length ?
369
this.slice(0, length - truncation.length) + truncation : String(this);
373
return this.replace(/^\s+/, '').replace(/\s+$/, '');
376
stripTags: function() {
377
return this.replace(/<\/?[^>]+>/gi, '');
380
stripScripts: function() {
381
return this.replace(new RegExp(Prototype.ScriptFragment, 'img'), '');
384
extractScripts: function() {
385
var matchAll = new RegExp(Prototype.ScriptFragment, 'img');
386
var matchOne = new RegExp(Prototype.ScriptFragment, 'im');
387
return (this.match(matchAll) || []).map(function(scriptTag) {
388
return (scriptTag.match(matchOne) || ['', ''])[1];
392
evalScripts: function() {
393
return this.extractScripts().map(function(script) { return eval(script) });
396
escapeHTML: function() {
397
var self = arguments.callee;
398
self.text.data = this;
399
return self.div.innerHTML;
402
unescapeHTML: function() {
403
var div = new Element('div');
404
div.innerHTML = this.stripTags();
405
return div.childNodes[0] ? (div.childNodes.length > 1 ?
406
$A(div.childNodes).inject('', function(memo, node) { return memo+node.nodeValue }) :
407
div.childNodes[0].nodeValue) : '';
410
toQueryParams: function(separator) {
411
var match = this.strip().match(/([^?#]*)(#.*)?$/);
412
if (!match) return { };
414
return match[1].split(separator || '&').inject({ }, function(hash, pair) {
415
if ((pair = pair.split('='))[0]) {
416
var key = decodeURIComponent(pair.shift());
417
var value = pair.length > 1 ? pair.join('=') : pair[0];
418
if (value != undefined) value = decodeURIComponent(value);
421
if (!Object.isArray(hash[key])) hash[key] = [hash[key]];
422
hash[key].push(value);
424
else hash[key] = value;
430
toArray: function() {
431
return this.split('');
435
return this.slice(0, this.length - 1) +
436
String.fromCharCode(this.charCodeAt(this.length - 1) + 1);
439
times: function(count) {
440
return count < 1 ? '' : new Array(count + 1).join(this);
443
camelize: function() {
444
var parts = this.split('-'), len = parts.length;
445
if (len == 1) return parts[0];
447
var camelized = this.charAt(0) == '-'
448
? parts[0].charAt(0).toUpperCase() + parts[0].substring(1)
451
for (var i = 1; i < len; i++)
452
camelized += parts[i].charAt(0).toUpperCase() + parts[i].substring(1);
457
capitalize: function() {
458
return this.charAt(0).toUpperCase() + this.substring(1).toLowerCase();
461
underscore: function() {
462
return this.gsub(/::/, '/').gsub(/([A-Z]+)([A-Z][a-z])/,'#{1}_#{2}').gsub(/([a-z\d])([A-Z])/,'#{1}_#{2}').gsub(/-/,'_').toLowerCase();
465
dasherize: function() {
466
return this.gsub(/_/,'-');
469
inspect: function(useDoubleQuotes) {
470
var escapedString = this.gsub(/[\x00-\x1f\\]/, function(match) {
471
var character = String.specialChar[match[0]];
472
return character ? character : '\\u00' + match[0].charCodeAt().toPaddedString(2, 16);
474
if (useDoubleQuotes) return '"' + escapedString.replace(/"/g, '\\"') + '"';
475
return "'" + escapedString.replace(/'/g, '\\\'') + "'";
479
return this.inspect(true);
482
unfilterJSON: function(filter) {
483
return this.sub(filter || Prototype.JSONFilter, '#{1}');
488
if (str.blank()) return false;
489
str = this.replace(/\\./g, '@').replace(/"[^"\\\n\r]*"/g, '');
490
return (/^[,:{}\[\]0-9.\-+Eaeflnr-u \n\r\t]*$/).test(str);
493
evalJSON: function(sanitize) {
494
var json = this.unfilterJSON();
496
if (!sanitize || json.isJSON()) return eval('(' + json + ')');
498
throw new SyntaxError('Badly formed JSON string: ' + this.inspect());
501
include: function(pattern) {
502
return this.indexOf(pattern) > -1;
505
startsWith: function(pattern) {
506
return this.indexOf(pattern) === 0;
509
endsWith: function(pattern) {
510
var d = this.length - pattern.length;
511
return d >= 0 && this.lastIndexOf(pattern) === d;
519
return /^\s*$/.test(this);
522
interpolate: function(object, pattern) {
523
return new Template(this, pattern).evaluate(object);
527
if (Prototype.Browser.WebKit || Prototype.Browser.IE) Object.extend(String.prototype, {
528
escapeHTML: function() {
529
return this.replace(/&/g,'&').replace(/</g,'<').replace(/>/g,'>');
531
unescapeHTML: function() {
532
return this.replace(/&/g,'&').replace(/</g,'<').replace(/>/g,'>');
536
String.prototype.gsub.prepareReplacement = function(replacement) {
537
if (Object.isFunction(replacement)) return replacement;
538
var template = new Template(replacement);
539
return function(match) { return template.evaluate(match) };
542
String.prototype.parseQuery = String.prototype.toQueryParams;
544
Object.extend(String.prototype.escapeHTML, {
545
div: document.createElement('div'),
546
text: document.createTextNode('')
549
with (String.prototype.escapeHTML) div.appendChild(text);
551
var Template = Class.create({
552
initialize: function(template, pattern) {
553
this.template = template.toString();
554
this.pattern = pattern || Template.Pattern;
557
evaluate: function(object) {
558
if (Object.isFunction(object.toTemplateReplacements))
559
object = object.toTemplateReplacements();
561
return this.template.gsub(this.pattern, function(match) {
562
if (object == null) return '';
564
var before = match[1] || '';
565
if (before == '\\') return match[2];
567
var ctx = object, expr = match[3];
568
var pattern = /^([^.[]+|\[((?:.*?[^\\])?)\])(\.|\[|$)/;
569
match = pattern.exec(expr);
570
if (match == null) return before;
572
while (match != null) {
573
var comp = match[1].startsWith('[') ? match[2].gsub('\\\\]', ']') : match[1];
575
if (null == ctx || '' == match[3]) break;
576
expr = expr.substring('[' == match[3] ? match[1].length : match[0].length);
577
match = pattern.exec(expr);
580
return before + String.interpret(ctx);
584
Template.Pattern = /(^|.|\r|\n)(#\{(.*?)\})/;
589
each: function(iterator, context) {
591
iterator = iterator.bind(context);
593
this._each(function(value) {
594
iterator(value, index++);
597
if (e != $break) throw e;
602
eachSlice: function(number, iterator, context) {
603
iterator = iterator ? iterator.bind(context) : Prototype.K;
604
var index = -number, slices = [], array = this.toArray();
605
while ((index += number) < array.length)
606
slices.push(array.slice(index, index+number));
607
return slices.collect(iterator, context);
610
all: function(iterator, context) {
611
iterator = iterator ? iterator.bind(context) : Prototype.K;
613
this.each(function(value, index) {
614
result = result && !!iterator(value, index);
615
if (!result) throw $break;
620
any: function(iterator, context) {
621
iterator = iterator ? iterator.bind(context) : Prototype.K;
623
this.each(function(value, index) {
624
if (result = !!iterator(value, index))
630
collect: function(iterator, context) {
631
iterator = iterator ? iterator.bind(context) : Prototype.K;
633
this.each(function(value, index) {
634
results.push(iterator(value, index));
639
detect: function(iterator, context) {
640
iterator = iterator.bind(context);
642
this.each(function(value, index) {
643
if (iterator(value, index)) {
651
findAll: function(iterator, context) {
652
iterator = iterator.bind(context);
654
this.each(function(value, index) {
655
if (iterator(value, index))
661
grep: function(filter, iterator, context) {
662
iterator = iterator ? iterator.bind(context) : Prototype.K;
665
if (Object.isString(filter))
666
filter = new RegExp(filter);
668
this.each(function(value, index) {
669
if (filter.match(value))
670
results.push(iterator(value, index));
675
include: function(object) {
676
if (Object.isFunction(this.indexOf))
677
if (this.indexOf(object) != -1) return true;
680
this.each(function(value) {
681
if (value == object) {
689
inGroupsOf: function(number, fillWith) {
690
fillWith = Object.isUndefined(fillWith) ? null : fillWith;
691
return this.eachSlice(number, function(slice) {
692
while(slice.length < number) slice.push(fillWith);
697
inject: function(memo, iterator, context) {
698
iterator = iterator.bind(context);
699
this.each(function(value, index) {
700
memo = iterator(memo, value, index);
705
invoke: function(method) {
706
var args = $A(arguments).slice(1);
707
return this.map(function(value) {
708
return value[method].apply(value, args);
712
max: function(iterator, context) {
713
iterator = iterator ? iterator.bind(context) : Prototype.K;
715
this.each(function(value, index) {
716
value = iterator(value, index);
717
if (result == null || value >= result)
723
min: function(iterator, context) {
724
iterator = iterator ? iterator.bind(context) : Prototype.K;
726
this.each(function(value, index) {
727
value = iterator(value, index);
728
if (result == null || value < result)
734
partition: function(iterator, context) {
735
iterator = iterator ? iterator.bind(context) : Prototype.K;
736
var trues = [], falses = [];
737
this.each(function(value, index) {
738
(iterator(value, index) ?
739
trues : falses).push(value);
741
return [trues, falses];
744
pluck: function(property) {
746
this.each(function(value) {
747
results.push(value[property]);
752
reject: function(iterator, context) {
753
iterator = iterator.bind(context);
755
this.each(function(value, index) {
756
if (!iterator(value, index))
762
sortBy: function(iterator, context) {
763
iterator = iterator.bind(context);
764
return this.map(function(value, index) {
765
return {value: value, criteria: iterator(value, index)};
766
}).sort(function(left, right) {
767
var a = left.criteria, b = right.criteria;
768
return a < b ? -1 : a > b ? 1 : 0;
772
toArray: function() {
777
var iterator = Prototype.K, args = $A(arguments);
778
if (Object.isFunction(args.last()))
779
iterator = args.pop();
781
var collections = [this].concat(args).map($A);
782
return this.map(function(value, index) {
783
return iterator(collections.pluck(index));
788
return this.toArray().length;
791
inspect: function() {
792
return '#<Enumerable:' + this.toArray().inspect() + '>';
796
Object.extend(Enumerable, {
797
map: Enumerable.collect,
798
find: Enumerable.detect,
799
select: Enumerable.findAll,
800
filter: Enumerable.findAll,
801
member: Enumerable.include,
802
entries: Enumerable.toArray,
803
every: Enumerable.all,
806
function $A(iterable) {
807
if (!iterable) return [];
808
if (iterable.toArray) return iterable.toArray();
809
var length = iterable.length || 0, results = new Array(length);
810
while (length--) results[length] = iterable[length];
814
if (Prototype.Browser.WebKit) {
815
function $A(iterable) {
816
if (!iterable) return [];
817
if (!(Object.isFunction(iterable) && iterable == '[object NodeList]') &&
818
iterable.toArray) return iterable.toArray();
819
var length = iterable.length || 0, results = new Array(length);
820
while (length--) results[length] = iterable[length];
827
Object.extend(Array.prototype, Enumerable);
829
if (!Array.prototype._reverse) Array.prototype._reverse = Array.prototype.reverse;
831
Object.extend(Array.prototype, {
832
_each: function(iterator) {
833
for (var i = 0, length = this.length; i < length; i++)
847
return this[this.length - 1];
850
compact: function() {
851
return this.select(function(value) {
852
return value != null;
856
flatten: function() {
857
return this.inject([], function(array, value) {
858
return array.concat(Object.isArray(value) ?
859
value.flatten() : [value]);
863
without: function() {
864
var values = $A(arguments);
865
return this.select(function(value) {
866
return !values.include(value);
870
reverse: function(inline) {
871
return (inline !== false ? this : this.toArray())._reverse();
875
return this.length > 1 ? this : this[0];
878
uniq: function(sorted) {
879
return this.inject([], function(array, value, index) {
880
if (0 == index || (sorted ? array.last() != value : !array.include(value)))
886
intersect: function(array) {
887
return this.uniq().findAll(function(item) {
888
return array.detect(function(value) { return item === value });
893
return [].concat(this);
900
inspect: function() {
901
return '[' + this.map(Object.inspect).join(', ') + ']';
906
this.each(function(object) {
907
var value = Object.toJSON(object);
908
if (!Object.isUndefined(value)) results.push(value);
910
return '[' + results.join(', ') + ']';
914
// use native browser JS 1.6 implementation if available
915
if (Object.isFunction(Array.prototype.forEach))
916
Array.prototype._each = Array.prototype.forEach;
918
if (!Array.prototype.indexOf) Array.prototype.indexOf = function(item, i) {
920
var length = this.length;
921
if (i < 0) i = length + i;
922
for (; i < length; i++)
923
if (this[i] === item) return i;
927
if (!Array.prototype.lastIndexOf) Array.prototype.lastIndexOf = function(item, i) {
928
i = isNaN(i) ? this.length : (i < 0 ? this.length + i : i) + 1;
929
var n = this.slice(0, i).reverse().indexOf(item);
930
return (n < 0) ? n : i - n - 1;
933
Array.prototype.toArray = Array.prototype.clone;
935
function $w(string) {
936
if (!Object.isString(string)) return [];
937
string = string.strip();
938
return string ? string.split(/\s+/) : [];
941
if (Prototype.Browser.Opera){
942
Array.prototype.concat = function() {
944
for (var i = 0, length = this.length; i < length; i++) array.push(this[i]);
945
for (var i = 0, length = arguments.length; i < length; i++) {
946
if (Object.isArray(arguments[i])) {
947
for (var j = 0, arrayLength = arguments[i].length; j < arrayLength; j++)
948
array.push(arguments[i][j]);
950
array.push(arguments[i]);
956
Object.extend(Number.prototype, {
957
toColorPart: function() {
958
return this.toPaddedString(2, 16);
965
times: function(iterator) {
966
$R(0, this, true).each(iterator);
970
toPaddedString: function(length, radix) {
971
var string = this.toString(radix || 10);
972
return '0'.times(length - string.length) + string;
976
return isFinite(this) ? this.toString() : 'null';
980
$w('abs round ceil floor').each(function(method){
981
Number.prototype[method] = Math[method].methodize();
983
function $H(object) {
984
return new Hash(object);
987
var Hash = Class.create(Enumerable, (function() {
989
function toQueryPair(key, value) {
990
if (Object.isUndefined(value)) return key;
991
return key + '=' + encodeURIComponent(String.interpret(value));
995
initialize: function(object) {
996
this._object = Object.isHash(object) ? object.toObject() : Object.clone(object);
999
_each: function(iterator) {
1000
for (var key in this._object) {
1001
var value = this._object[key], pair = [key, value];
1008
set: function(key, value) {
1009
return this._object[key] = value;
1012
get: function(key) {
1013
return this._object[key];
1016
unset: function(key) {
1017
var value = this._object[key];
1018
delete this._object[key];
1022
toObject: function() {
1023
return Object.clone(this._object);
1027
return this.pluck('key');
1030
values: function() {
1031
return this.pluck('value');
1034
index: function(value) {
1035
var match = this.detect(function(pair) {
1036
return pair.value === value;
1038
return match && match.key;
1041
merge: function(object) {
1042
return this.clone().update(object);
1045
update: function(object) {
1046
return new Hash(object).inject(this, function(result, pair) {
1047
result.set(pair.key, pair.value);
1052
toQueryString: function() {
1053
return this.map(function(pair) {
1054
var key = encodeURIComponent(pair.key), values = pair.value;
1056
if (values && typeof values == 'object') {
1057
if (Object.isArray(values))
1058
return values.map(toQueryPair.curry(key)).join('&');
1060
return toQueryPair(key, values);
1064
inspect: function() {
1065
return '#<Hash:{' + this.map(function(pair) {
1066
return pair.map(Object.inspect).join(': ');
1067
}).join(', ') + '}>';
1070
toJSON: function() {
1071
return Object.toJSON(this.toObject());
1075
return new Hash(this);
1080
Hash.prototype.toTemplateReplacements = Hash.prototype.toObject;
1082
var ObjectRange = Class.create(Enumerable, {
1083
initialize: function(start, end, exclusive) {
1086
this.exclusive = exclusive;
1089
_each: function(iterator) {
1090
var value = this.start;
1091
while (this.include(value)) {
1093
value = value.succ();
1097
include: function(value) {
1098
if (value < this.start)
1101
return value < this.end;
1102
return value <= this.end;
1106
var $R = function(start, end, exclusive) {
1107
return new ObjectRange(start, end, exclusive);
1111
getTransport: function() {
1113
function() {return new XMLHttpRequest()},
1114
function() {return new ActiveXObject('Msxml2.XMLHTTP')},
1115
function() {return new ActiveXObject('Microsoft.XMLHTTP')}
1119
activeRequestCount: 0
1125
_each: function(iterator) {
1126
this.responders._each(iterator);
1129
register: function(responder) {
1130
if (!this.include(responder))
1131
this.responders.push(responder);
1134
unregister: function(responder) {
1135
this.responders = this.responders.without(responder);
1138
dispatch: function(callback, request, transport, json) {
1139
this.each(function(responder) {
1140
if (Object.isFunction(responder[callback])) {
1142
responder[callback].apply(responder, [request, transport, json]);
1149
Object.extend(Ajax.Responders, Enumerable);
1151
Ajax.Responders.register({
1152
onCreate: function() { Ajax.activeRequestCount++ },
1153
onComplete: function() { Ajax.activeRequestCount-- }
1156
Ajax.Base = Class.create({
1157
initialize: function(options) {
1161
contentType: 'application/x-www-form-urlencoded',
1167
Object.extend(this.options, options || { });
1169
this.options.method = this.options.method.toLowerCase();
1171
if (Object.isString(this.options.parameters))
1172
this.options.parameters = this.options.parameters.toQueryParams();
1173
else if (Object.isHash(this.options.parameters))
1174
this.options.parameters = this.options.parameters.toObject();
1178
Ajax.Request = Class.create(Ajax.Base, {
1181
initialize: function($super, url, options) {
1183
this.transport = Ajax.getTransport();
1187
request: function(url) {
1189
this.method = this.options.method;
1190
var params = Object.clone(this.options.parameters);
1192
if (!['get', 'post'].include(this.method)) {
1193
// simulate other verbs over post
1194
params['_method'] = this.method;
1195
this.method = 'post';
1198
this.parameters = params;
1200
if (params = Object.toQueryString(params)) {
1201
// when GET, append parameters to URL
1202
if (this.method == 'get')
1203
this.url += (this.url.include('?') ? '&' : '?') + params;
1204
else if (/Konqueror|Safari|KHTML/.test(navigator.userAgent))
1209
var response = new Ajax.Response(this);
1210
if (this.options.onCreate) this.options.onCreate(response);
1211
Ajax.Responders.dispatch('onCreate', this, response);
1213
this.transport.open(this.method.toUpperCase(), this.url,
1214
this.options.asynchronous);
1216
if (this.options.asynchronous) this.respondToReadyState.bind(this).defer(1);
1218
this.transport.onreadystatechange = this.onStateChange.bind(this);
1219
this.setRequestHeaders();
1221
this.body = this.method == 'post' ? (this.options.postBody || params) : null;
1222
this.transport.send(this.body);
1224
/* Force Firefox to handle ready state 4 for synchronous requests */
1225
if (!this.options.asynchronous && this.transport.overrideMimeType)
1226
this.onStateChange();
1230
this.dispatchException(e);
1234
onStateChange: function() {
1235
var readyState = this.transport.readyState;
1236
if (readyState > 1 && !((readyState == 4) && this._complete))
1237
this.respondToReadyState(this.transport.readyState);
1240
setRequestHeaders: function() {
1242
'X-Requested-With': 'XMLHttpRequest',
1243
'X-Prototype-Version': Prototype.Version,
1244
'Accept': 'text/javascript, text/html, application/xml, text/xml, */*'
1247
if (this.method == 'post') {
1248
headers['Content-type'] = this.options.contentType +
1249
(this.options.encoding ? '; charset=' + this.options.encoding : '');
1251
/* Force "Connection: close" for older Mozilla browsers to work
1252
* around a bug where XMLHttpRequest sends an incorrect
1253
* Content-length header. See Mozilla Bugzilla #246651.
1255
if (this.transport.overrideMimeType &&
1256
(navigator.userAgent.match(/Gecko\/(\d{4})/) || [0,2005])[1] < 2005)
1257
headers['Connection'] = 'close';
1260
// user-defined headers
1261
if (typeof this.options.requestHeaders == 'object') {
1262
var extras = this.options.requestHeaders;
1264
if (Object.isFunction(extras.push))
1265
for (var i = 0, length = extras.length; i < length; i += 2)
1266
headers[extras[i]] = extras[i+1];
1268
$H(extras).each(function(pair) { headers[pair.key] = pair.value });
1271
for (var name in headers)
1272
this.transport.setRequestHeader(name, headers[name]);
1275
success: function() {
1276
var status = this.getStatus();
1277
return !status || (status >= 200 && status < 300);
1280
getStatus: function() {
1282
return this.transport.status || 0;
1283
} catch (e) { return 0 }
1286
respondToReadyState: function(readyState) {
1287
var state = Ajax.Request.Events[readyState], response = new Ajax.Response(this);
1289
if (state == 'Complete') {
1291
this._complete = true;
1292
(this.options['on' + response.status]
1293
|| this.options['on' + (this.success() ? 'Success' : 'Failure')]
1294
|| Prototype.emptyFunction)(response, response.headerJSON);
1296
this.dispatchException(e);
1299
var contentType = response.getHeader('Content-type');
1300
if (this.options.evalJS == 'force'
1301
|| (this.options.evalJS && contentType
1302
&& contentType.match(/^\s*(text|application)\/(x-)?(java|ecma)script(;.*)?\s*$/i)))
1303
this.evalResponse();
1307
(this.options['on' + state] || Prototype.emptyFunction)(response, response.headerJSON);
1308
Ajax.Responders.dispatch('on' + state, this, response, response.headerJSON);
1310
this.dispatchException(e);
1313
if (state == 'Complete') {
1314
// avoid memory leak in MSIE: clean up
1315
this.transport.onreadystatechange = Prototype.emptyFunction;
1319
getHeader: function(name) {
1321
return this.transport.getResponseHeader(name) || null;
1322
} catch (e) { return null }
1325
evalResponse: function() {
1327
return eval((this.transport.responseText || '').unfilterJSON());
1329
this.dispatchException(e);
1333
dispatchException: function(exception) {
1334
(this.options.onException || Prototype.emptyFunction)(this, exception);
1335
Ajax.Responders.dispatch('onException', this, exception);
1339
Ajax.Request.Events =
1340
['Uninitialized', 'Loading', 'Loaded', 'Interactive', 'Complete'];
1342
Ajax.Response = Class.create({
1343
initialize: function(request){
1344
this.request = request;
1345
var transport = this.transport = request.transport,
1346
readyState = this.readyState = transport.readyState;
1348
if((readyState > 2 && !Prototype.Browser.IE) || readyState == 4) {
1349
this.status = this.getStatus();
1350
this.statusText = this.getStatusText();
1351
this.responseText = String.interpret(transport.responseText);
1352
this.headerJSON = this._getHeaderJSON();
1355
if(readyState == 4) {
1356
var xml = transport.responseXML;
1357
this.responseXML = Object.isUndefined(xml) ? null : xml;
1358
this.responseJSON = this._getResponseJSON();
1365
getStatus: Ajax.Request.prototype.getStatus,
1367
getStatusText: function() {
1369
return this.transport.statusText || '';
1370
} catch (e) { return '' }
1373
getHeader: Ajax.Request.prototype.getHeader,
1375
getAllHeaders: function() {
1377
return this.getAllResponseHeaders();
1378
} catch (e) { return null }
1381
getResponseHeader: function(name) {
1382
return this.transport.getResponseHeader(name);
1385
getAllResponseHeaders: function() {
1386
return this.transport.getAllResponseHeaders();
1389
_getHeaderJSON: function() {
1390
var json = this.getHeader('X-JSON');
1391
if (!json) return null;
1392
json = decodeURIComponent(escape(json));
1394
return json.evalJSON(this.request.options.sanitizeJSON);
1396
this.request.dispatchException(e);
1400
_getResponseJSON: function() {
1401
var options = this.request.options;
1402
if (!options.evalJSON || (options.evalJSON != 'force' &&
1403
!(this.getHeader('Content-type') || '').include('application/json')) ||
1404
this.responseText.blank())
1407
return this.responseText.evalJSON(options.sanitizeJSON);
1409
this.request.dispatchException(e);
1414
Ajax.Updater = Class.create(Ajax.Request, {
1415
initialize: function($super, container, url, options) {
1417
success: (container.success || container),
1418
failure: (container.failure || (container.success ? null : container))
1421
options = Object.clone(options);
1422
var onComplete = options.onComplete;
1423
options.onComplete = (function(response, json) {
1424
this.updateContent(response.responseText);
1425
if (Object.isFunction(onComplete)) onComplete(response, json);
1428
$super(url, options);
1431
updateContent: function(responseText) {
1432
var receiver = this.container[this.success() ? 'success' : 'failure'],
1433
options = this.options;
1435
if (!options.evalScripts) responseText = responseText.stripScripts();
1437
if (receiver = $(receiver)) {
1438
if (options.insertion) {
1439
if (Object.isString(options.insertion)) {
1440
var insertion = { }; insertion[options.insertion] = responseText;
1441
receiver.insert(insertion);
1443
else options.insertion(receiver, responseText);
1445
else receiver.update(responseText);
1450
Ajax.PeriodicalUpdater = Class.create(Ajax.Base, {
1451
initialize: function($super, container, url, options) {
1453
this.onComplete = this.options.onComplete;
1455
this.frequency = (this.options.frequency || 2);
1456
this.decay = (this.options.decay || 1);
1459
this.container = container;
1466
this.options.onComplete = this.updateComplete.bind(this);
1467
this.onTimerEvent();
1471
this.updater.options.onComplete = undefined;
1472
clearTimeout(this.timer);
1473
(this.onComplete || Prototype.emptyFunction).apply(this, arguments);
1476
updateComplete: function(response) {
1477
if (this.options.decay) {
1478
this.decay = (response.responseText == this.lastText ?
1479
this.decay * this.options.decay : 1);
1481
this.lastText = response.responseText;
1483
this.timer = this.onTimerEvent.bind(this).delay(this.decay * this.frequency);
1486
onTimerEvent: function() {
1487
this.updater = new Ajax.Updater(this.container, this.url, this.options);
1490
function $(element) {
1491
if (arguments.length > 1) {
1492
for (var i = 0, elements = [], length = arguments.length; i < length; i++)
1493
elements.push($(arguments[i]));
1496
if (Object.isString(element))
1497
element = document.getElementById(element);
1498
return Element.extend(element);
1501
if (Prototype.BrowserFeatures.XPath) {
1502
document._getElementsByXPath = function(expression, parentElement) {
1504
var query = document.evaluate(expression, $(parentElement) || document,
1505
null, XPathResult.ORDERED_NODE_SNAPSHOT_TYPE, null);
1506
for (var i = 0, length = query.snapshotLength; i < length; i++)
1507
results.push(Element.extend(query.snapshotItem(i)));
1512
/*--------------------------------------------------------------------------*/
1514
if (!window.Node) var Node = { };
1516
if (!Node.ELEMENT_NODE) {
1517
// DOM level 2 ECMAScript Language Binding
1518
Object.extend(Node, {
1522
CDATA_SECTION_NODE: 4,
1523
ENTITY_REFERENCE_NODE: 5,
1525
PROCESSING_INSTRUCTION_NODE: 7,
1528
DOCUMENT_TYPE_NODE: 10,
1529
DOCUMENT_FRAGMENT_NODE: 11,
1535
var element = this.Element;
1536
this.Element = function(tagName, attributes) {
1537
attributes = attributes || { };
1538
tagName = tagName.toLowerCase();
1539
var cache = Element.cache;
1540
if (Prototype.Browser.IE && attributes.name) {
1541
tagName = '<' + tagName + ' name="' + attributes.name + '">';
1542
delete attributes.name;
1543
return Element.writeAttribute(document.createElement(tagName), attributes);
1545
if (!cache[tagName]) cache[tagName] = Element.extend(document.createElement(tagName));
1546
return Element.writeAttribute(cache[tagName].cloneNode(false), attributes);
1548
Object.extend(this.Element, element || { });
1551
Element.cache = { };
1554
visible: function(element) {
1555
return $(element).style.display != 'none';
1558
toggle: function(element) {
1559
element = $(element);
1560
Element[Element.visible(element) ? 'hide' : 'show'](element);
1564
hide: function(element) {
1565
$(element).style.display = 'none';
1569
show: function(element) {
1570
$(element).style.display = '';
1574
remove: function(element) {
1575
element = $(element);
1576
element.parentNode.removeChild(element);
1580
update: function(element, content) {
1581
element = $(element);
1582
if (content && content.toElement) content = content.toElement();
1583
if (Object.isElement(content)) return element.update().insert(content);
1584
content = Object.toHTML(content);
1585
element.innerHTML = content.stripScripts();
1586
content.evalScripts.bind(content).defer();
1590
replace: function(element, content) {
1591
element = $(element);
1592
if (content && content.toElement) content = content.toElement();
1593
else if (!Object.isElement(content)) {
1594
content = Object.toHTML(content);
1595
var range = element.ownerDocument.createRange();
1596
range.selectNode(element);
1597
content.evalScripts.bind(content).defer();
1598
content = range.createContextualFragment(content.stripScripts());
1600
element.parentNode.replaceChild(content, element);
1604
insert: function(element, insertions) {
1605
element = $(element);
1607
if (Object.isString(insertions) || Object.isNumber(insertions) ||
1608
Object.isElement(insertions) || (insertions && (insertions.toElement || insertions.toHTML)))
1609
insertions = {bottom:insertions};
1611
var content, insert, tagName, childNodes;
1613
for (position in insertions) {
1614
content = insertions[position];
1615
position = position.toLowerCase();
1616
insert = Element._insertionTranslations[position];
1618
if (content && content.toElement) content = content.toElement();
1619
if (Object.isElement(content)) {
1620
insert(element, content);
1624
content = Object.toHTML(content);
1626
tagName = ((position == 'before' || position == 'after')
1627
? element.parentNode : element).tagName.toUpperCase();
1629
childNodes = Element._getContentFromAnonymousElement(tagName, content.stripScripts());
1631
if (position == 'top' || position == 'after') childNodes.reverse();
1632
childNodes.each(insert.curry(element));
1634
content.evalScripts.bind(content).defer();
1640
wrap: function(element, wrapper, attributes) {
1641
element = $(element);
1642
if (Object.isElement(wrapper))
1643
$(wrapper).writeAttribute(attributes || { });
1644
else if (Object.isString(wrapper)) wrapper = new Element(wrapper, attributes);
1645
else wrapper = new Element('div', wrapper);
1646
if (element.parentNode)
1647
element.parentNode.replaceChild(wrapper, element);
1648
wrapper.appendChild(element);
1652
inspect: function(element) {
1653
element = $(element);
1654
var result = '<' + element.tagName.toLowerCase();
1655
$H({'id': 'id', 'className': 'class'}).each(function(pair) {
1656
var property = pair.first(), attribute = pair.last();
1657
var value = (element[property] || '').toString();
1658
if (value) result += ' ' + attribute + '=' + value.inspect(true);
1660
return result + '>';
1663
recursivelyCollect: function(element, property) {
1664
element = $(element);
1666
while (element = element[property])
1667
if (element.nodeType == 1)
1668
elements.push(Element.extend(element));
1672
ancestors: function(element) {
1673
return $(element).recursivelyCollect('parentNode');
1676
descendants: function(element) {
1677
return $(element).getElementsBySelector("*");
1680
firstDescendant: function(element) {
1681
element = $(element).firstChild;
1682
while (element && element.nodeType != 1) element = element.nextSibling;
1686
immediateDescendants: function(element) {
1687
if (!(element = $(element).firstChild)) return [];
1688
while (element && element.nodeType != 1) element = element.nextSibling;
1689
if (element) return [element].concat($(element).nextSiblings());
1693
previousSiblings: function(element) {
1694
return $(element).recursivelyCollect('previousSibling');
1697
nextSiblings: function(element) {
1698
return $(element).recursivelyCollect('nextSibling');
1701
siblings: function(element) {
1702
element = $(element);
1703
return element.previousSiblings().reverse().concat(element.nextSiblings());
1706
match: function(element, selector) {
1707
if (Object.isString(selector))
1708
selector = new Selector(selector);
1709
return selector.match($(element));
1712
up: function(element, expression, index) {
1713
element = $(element);
1714
if (arguments.length == 1) return $(element.parentNode);
1715
var ancestors = element.ancestors();
1716
return Object.isNumber(expression) ? ancestors[expression] :
1717
Selector.findElement(ancestors, expression, index);
1720
down: function(element, expression, index) {
1721
element = $(element);
1722
if (arguments.length == 1) return element.firstDescendant();
1723
return Object.isNumber(expression) ? element.descendants()[expression] :
1724
element.select(expression)[index || 0];
1727
previous: function(element, expression, index) {
1728
element = $(element);
1729
if (arguments.length == 1) return $(Selector.handlers.previousElementSibling(element));
1730
var previousSiblings = element.previousSiblings();
1731
return Object.isNumber(expression) ? previousSiblings[expression] :
1732
Selector.findElement(previousSiblings, expression, index);
1735
next: function(element, expression, index) {
1736
element = $(element);
1737
if (arguments.length == 1) return $(Selector.handlers.nextElementSibling(element));
1738
var nextSiblings = element.nextSiblings();
1739
return Object.isNumber(expression) ? nextSiblings[expression] :
1740
Selector.findElement(nextSiblings, expression, index);
1743
select: function() {
1744
var args = $A(arguments), element = $(args.shift());
1745
return Selector.findChildElements(element, args);
1748
adjacent: function() {
1749
var args = $A(arguments), element = $(args.shift());
1750
return Selector.findChildElements(element.parentNode, args).without(element);
1753
identify: function(element) {
1754
element = $(element);
1755
var id = element.readAttribute('id'), self = arguments.callee;
1757
do { id = 'anonymous_element_' + self.counter++ } while ($(id));
1758
element.writeAttribute('id', id);
1762
readAttribute: function(element, name) {
1763
element = $(element);
1764
if (Prototype.Browser.IE) {
1765
var t = Element._attributeTranslations.read;
1766
if (t.values[name]) return t.values[name](element, name);
1767
if (t.names[name]) name = t.names[name];
1768
if (name.include(':')) {
1769
return (!element.attributes || !element.attributes[name]) ? null :
1770
element.attributes[name].value;
1773
return element.getAttribute(name);
1776
writeAttribute: function(element, name, value) {
1777
element = $(element);
1778
var attributes = { }, t = Element._attributeTranslations.write;
1780
if (typeof name == 'object') attributes = name;
1781
else attributes[name] = Object.isUndefined(value) ? true : value;
1783
for (var attr in attributes) {
1784
name = t.names[attr] || attr;
1785
value = attributes[attr];
1786
if (t.values[attr]) name = t.values[attr](element, value);
1787
if (value === false || value === null)
1788
element.removeAttribute(name);
1789
else if (value === true)
1790
element.setAttribute(name, name);
1791
else element.setAttribute(name, value);
1796
getHeight: function(element) {
1797
return $(element).getDimensions().height;
1800
getWidth: function(element) {
1801
return $(element).getDimensions().width;
1804
classNames: function(element) {
1805
return new Element.ClassNames(element);
1808
hasClassName: function(element, className) {
1809
if (!(element = $(element))) return;
1810
var elementClassName = element.className;
1811
return (elementClassName.length > 0 && (elementClassName == className ||
1812
new RegExp("(^|\\s)" + className + "(\\s|$)").test(elementClassName)));
1815
addClassName: function(element, className) {
1816
if (!(element = $(element))) return;
1817
if (!element.hasClassName(className))
1818
element.className += (element.className ? ' ' : '') + className;
1822
removeClassName: function(element, className) {
1823
if (!(element = $(element))) return;
1824
element.className = element.className.replace(
1825
new RegExp("(^|\\s+)" + className + "(\\s+|$)"), ' ').strip();
1829
toggleClassName: function(element, className) {
1830
if (!(element = $(element))) return;
1831
return element[element.hasClassName(className) ?
1832
'removeClassName' : 'addClassName'](className);
1835
// removes whitespace-only text node children
1836
cleanWhitespace: function(element) {
1837
element = $(element);
1838
var node = element.firstChild;
1840
var nextNode = node.nextSibling;
1841
if (node.nodeType == 3 && !/\S/.test(node.nodeValue))
1842
element.removeChild(node);
1848
empty: function(element) {
1849
return $(element).innerHTML.blank();
1852
descendantOf: function(element, ancestor) {
1853
element = $(element), ancestor = $(ancestor);
1854
var originalAncestor = ancestor;
1856
if (element.compareDocumentPosition)
1857
return (element.compareDocumentPosition(ancestor) & 8) === 8;
1859
if (element.sourceIndex && !Prototype.Browser.Opera) {
1860
var e = element.sourceIndex, a = ancestor.sourceIndex,
1861
nextAncestor = ancestor.nextSibling;
1862
if (!nextAncestor) {
1863
do { ancestor = ancestor.parentNode; }
1864
while (!(nextAncestor = ancestor.nextSibling) && ancestor.parentNode);
1866
if (nextAncestor) return (e > a && e < nextAncestor.sourceIndex);
1869
while (element = element.parentNode)
1870
if (element == originalAncestor) return true;
1874
scrollTo: function(element) {
1875
element = $(element);
1876
var pos = element.cumulativeOffset();
1877
window.scrollTo(pos[0], pos[1]);
1881
getStyle: function(element, style) {
1882
element = $(element);
1883
style = style == 'float' ? 'cssFloat' : style.camelize();
1884
var value = element.style[style];
1886
var css = document.defaultView.getComputedStyle(element, null);
1887
value = css ? css[style] : null;
1889
if (style == 'opacity') return value ? parseFloat(value) : 1.0;
1890
return value == 'auto' ? null : value;
1893
getOpacity: function(element) {
1894
return $(element).getStyle('opacity');
1897
setStyle: function(element, styles) {
1898
element = $(element);
1899
var elementStyle = element.style, match;
1900
if (Object.isString(styles)) {
1901
element.style.cssText += ';' + styles;
1902
return styles.include('opacity') ?
1903
element.setOpacity(styles.match(/opacity:\s*(\d?\.?\d*)/)[1]) : element;
1905
for (var property in styles)
1906
if (property == 'opacity') element.setOpacity(styles[property]);
1908
elementStyle[(property == 'float' || property == 'cssFloat') ?
1909
(Object.isUndefined(elementStyle.styleFloat) ? 'cssFloat' : 'styleFloat') :
1910
property] = styles[property];
1915
setOpacity: function(element, value) {
1916
element = $(element);
1917
element.style.opacity = (value == 1 || value === '') ? '' :
1918
(value < 0.00001) ? 0 : value;
1922
getDimensions: function(element) {
1923
element = $(element);
1924
var display = $(element).getStyle('display');
1925
if (display != 'none' && display != null) // Safari bug
1926
return {width: element.offsetWidth, height: element.offsetHeight};
1928
// All *Width and *Height properties give 0 on elements with display none,
1929
// so enable the element temporarily
1930
var els = element.style;
1931
var originalVisibility = els.visibility;
1932
var originalPosition = els.position;
1933
var originalDisplay = els.display;
1934
els.visibility = 'hidden';
1935
els.position = 'absolute';
1936
els.display = 'block';
1937
var originalWidth = element.clientWidth;
1938
var originalHeight = element.clientHeight;
1939
els.display = originalDisplay;
1940
els.position = originalPosition;
1941
els.visibility = originalVisibility;
1942
return {width: originalWidth, height: originalHeight};
1945
makePositioned: function(element) {
1946
element = $(element);
1947
var pos = Element.getStyle(element, 'position');
1948
if (pos == 'static' || !pos) {
1949
element._madePositioned = true;
1950
element.style.position = 'relative';
1951
// Opera returns the offset relative to the positioning context, when an
1952
// element is position relative but top and left have not been defined
1954
element.style.top = 0;
1955
element.style.left = 0;
1961
undoPositioned: function(element) {
1962
element = $(element);
1963
if (element._madePositioned) {
1964
element._madePositioned = undefined;
1965
element.style.position =
1967
element.style.left =
1968
element.style.bottom =
1969
element.style.right = '';
1974
makeClipping: function(element) {
1975
element = $(element);
1976
if (element._overflow) return element;
1977
element._overflow = Element.getStyle(element, 'overflow') || 'auto';
1978
if (element._overflow !== 'hidden')
1979
element.style.overflow = 'hidden';
1983
undoClipping: function(element) {
1984
element = $(element);
1985
if (!element._overflow) return element;
1986
element.style.overflow = element._overflow == 'auto' ? '' : element._overflow;
1987
element._overflow = null;
1991
cumulativeOffset: function(element) {
1992
var valueT = 0, valueL = 0;
1994
valueT += element.offsetTop || 0;
1995
valueL += element.offsetLeft || 0;
1996
element = element.offsetParent;
1998
return Element._returnOffset(valueL, valueT);
2001
positionedOffset: function(element) {
2002
var valueT = 0, valueL = 0;
2004
valueT += element.offsetTop || 0;
2005
valueL += element.offsetLeft || 0;
2006
element = element.offsetParent;
2008
if (element.tagName == 'BODY') break;
2009
var p = Element.getStyle(element, 'position');
2010
if (p == 'relative' || p == 'absolute') break;
2013
return Element._returnOffset(valueL, valueT);
2016
absolutize: function(element) {
2017
element = $(element);
2018
if (element.getStyle('position') == 'absolute') return;
2019
// Position.prepare(); // To be done manually by Scripty when it needs it.
2021
var offsets = element.positionedOffset();
2022
var top = offsets[1];
2023
var left = offsets[0];
2024
var width = element.clientWidth;
2025
var height = element.clientHeight;
2027
element._originalLeft = left - parseFloat(element.style.left || 0);
2028
element._originalTop = top - parseFloat(element.style.top || 0);
2029
element._originalWidth = element.style.width;
2030
element._originalHeight = element.style.height;
2032
element.style.position = 'absolute';
2033
element.style.top = top + 'px';
2034
element.style.left = left + 'px';
2035
element.style.width = width + 'px';
2036
element.style.height = height + 'px';
2040
relativize: function(element) {
2041
element = $(element);
2042
if (element.getStyle('position') == 'relative') return;
2043
// Position.prepare(); // To be done manually by Scripty when it needs it.
2045
element.style.position = 'relative';
2046
var top = parseFloat(element.style.top || 0) - (element._originalTop || 0);
2047
var left = parseFloat(element.style.left || 0) - (element._originalLeft || 0);
2049
element.style.top = top + 'px';
2050
element.style.left = left + 'px';
2051
element.style.height = element._originalHeight;
2052
element.style.width = element._originalWidth;
2056
cumulativeScrollOffset: function(element) {
2057
var valueT = 0, valueL = 0;
2059
valueT += element.scrollTop || 0;
2060
valueL += element.scrollLeft || 0;
2061
element = element.parentNode;
2063
return Element._returnOffset(valueL, valueT);
2066
getOffsetParent: function(element) {
2067
if (element.offsetParent) return $(element.offsetParent);
2068
if (element == document.body) return $(element);
2070
while ((element = element.parentNode) && element != document.body)
2071
if (Element.getStyle(element, 'position') != 'static')
2074
return $(document.body);
2077
viewportOffset: function(forElement) {
2078
var valueT = 0, valueL = 0;
2080
var element = forElement;
2082
valueT += element.offsetTop || 0;
2083
valueL += element.offsetLeft || 0;
2086
if (element.offsetParent == document.body &&
2087
Element.getStyle(element, 'position') == 'absolute') break;
2089
} while (element = element.offsetParent);
2091
element = forElement;
2093
if (!Prototype.Browser.Opera || element.tagName == 'BODY') {
2094
valueT -= element.scrollTop || 0;
2095
valueL -= element.scrollLeft || 0;
2097
} while (element = element.parentNode);
2099
return Element._returnOffset(valueL, valueT);
2102
clonePosition: function(element, source) {
2103
var options = Object.extend({
2110
}, arguments[2] || { });
2112
// find page position of source
2114
var p = source.viewportOffset();
2116
// find coordinate system to use
2117
element = $(element);
2120
// delta [0,0] will do fine with position: fixed elements,
2121
// position:absolute needs offsetParent deltas
2122
if (Element.getStyle(element, 'position') == 'absolute') {
2123
parent = element.getOffsetParent();
2124
delta = parent.viewportOffset();
2127
// correct by body offsets (fixes Safari)
2128
if (parent == document.body) {
2129
delta[0] -= document.body.offsetLeft;
2130
delta[1] -= document.body.offsetTop;
2134
if (options.setLeft) element.style.left = (p[0] - delta[0] + options.offsetLeft) + 'px';
2135
if (options.setTop) element.style.top = (p[1] - delta[1] + options.offsetTop) + 'px';
2136
if (options.setWidth) element.style.width = source.offsetWidth + 'px';
2137
if (options.setHeight) element.style.height = source.offsetHeight + 'px';
2142
Element.Methods.identify.counter = 1;
2144
Object.extend(Element.Methods, {
2145
getElementsBySelector: Element.Methods.select,
2146
childElements: Element.Methods.immediateDescendants
2149
Element._attributeTranslations = {
2159
if (Prototype.Browser.Opera) {
2160
Element.Methods.getStyle = Element.Methods.getStyle.wrap(
2161
function(proceed, element, style) {
2163
case 'left': case 'top': case 'right': case 'bottom':
2164
if (proceed(element, 'position') === 'static') return null;
2165
case 'height': case 'width':
2166
// returns '0px' for hidden elements; we want it to return null
2167
if (!Element.visible(element)) return null;
2169
// returns the border-box dimensions rather than the content-box
2170
// dimensions, so we subtract padding and borders from the value
2171
var dim = parseInt(proceed(element, style), 10);
2173
if (dim !== element['offset' + style.capitalize()])
2177
if (style === 'height') {
2178
properties = ['border-top-width', 'padding-top',
2179
'padding-bottom', 'border-bottom-width'];
2182
properties = ['border-left-width', 'padding-left',
2183
'padding-right', 'border-right-width'];
2185
return properties.inject(dim, function(memo, property) {
2186
var val = proceed(element, property);
2187
return val === null ? memo : memo - parseInt(val, 10);
2189
default: return proceed(element, style);
2194
Element.Methods.readAttribute = Element.Methods.readAttribute.wrap(
2195
function(proceed, element, attribute) {
2196
if (attribute === 'title') return element.title;
2197
return proceed(element, attribute);
2202
else if (Prototype.Browser.IE) {
2203
$w('positionedOffset getOffsetParent viewportOffset').each(function(method) {
2204
Element.Methods[method] = Element.Methods[method].wrap(
2205
function(proceed, element) {
2206
element = $(element);
2207
var position = element.getStyle('position');
2208
if (position != 'static') return proceed(element);
2209
element.setStyle({ position: 'relative' });
2210
var value = proceed(element);
2211
element.setStyle({ position: position });
2217
Element.Methods.getStyle = function(element, style) {
2218
element = $(element);
2219
style = (style == 'float' || style == 'cssFloat') ? 'styleFloat' : style.camelize();
2220
var value = element.style[style];
2221
if (!value && element.currentStyle) value = element.currentStyle[style];
2223
if (style == 'opacity') {
2224
if (value = (element.getStyle('filter') || '').match(/alpha\(opacity=(.*)\)/))
2225
if (value[1]) return parseFloat(value[1]) / 100;
2229
if (value == 'auto') {
2230
if ((style == 'width' || style == 'height') && (element.getStyle('display') != 'none'))
2231
return element['offset' + style.capitalize()] + 'px';
2237
Element.Methods.setOpacity = function(element, value) {
2238
function stripAlpha(filter){
2239
return filter.replace(/alpha\([^\)]*\)/gi,'');
2241
element = $(element);
2242
var currentStyle = element.currentStyle;
2243
if ((currentStyle && !currentStyle.hasLayout) ||
2244
(!currentStyle && element.style.zoom == 'normal'))
2245
element.style.zoom = 1;
2247
var filter = element.getStyle('filter'), style = element.style;
2248
if (value == 1 || value === '') {
2249
(filter = stripAlpha(filter)) ?
2250
style.filter = filter : style.removeAttribute('filter');
2252
} else if (value < 0.00001) value = 0;
2253
style.filter = stripAlpha(filter) +
2254
'alpha(opacity=' + (value * 100) + ')';
2258
Element._attributeTranslations = {
2261
'class': 'className',
2265
_getAttr: function(element, attribute) {
2266
return element.getAttribute(attribute, 2);
2268
_getAttrNode: function(element, attribute) {
2269
var node = element.getAttributeNode(attribute);
2270
return node ? node.value : "";
2272
_getEv: function(element, attribute) {
2273
attribute = element.getAttribute(attribute);
2274
return attribute ? attribute.toString().slice(23, -2) : null;
2276
_flag: function(element, attribute) {
2277
return $(element).hasAttribute(attribute) ? attribute : null;
2279
style: function(element) {
2280
return element.style.cssText.toLowerCase();
2282
title: function(element) {
2283
return element.title;
2289
Element._attributeTranslations.write = {
2290
names: Object.clone(Element._attributeTranslations.read.names),
2292
checked: function(element, value) {
2293
element.checked = !!value;
2296
style: function(element, value) {
2297
element.style.cssText = value ? value : '';
2302
Element._attributeTranslations.has = {};
2304
$w('colSpan rowSpan vAlign dateTime accessKey tabIndex ' +
2305
'encType maxLength readOnly longDesc').each(function(attr) {
2306
Element._attributeTranslations.write.names[attr.toLowerCase()] = attr;
2307
Element._attributeTranslations.has[attr.toLowerCase()] = attr;
2315
action: v._getAttrNode,
2323
ondblclick: v._getEv,
2324
onmousedown: v._getEv,
2325
onmouseup: v._getEv,
2326
onmouseover: v._getEv,
2327
onmousemove: v._getEv,
2328
onmouseout: v._getEv,
2331
onkeypress: v._getEv,
2332
onkeydown: v._getEv,
2339
})(Element._attributeTranslations.read.values);
2342
else if (Prototype.Browser.Gecko && /rv:1\.8\.0/.test(navigator.userAgent)) {
2343
Element.Methods.setOpacity = function(element, value) {
2344
element = $(element);
2345
element.style.opacity = (value == 1) ? 0.999999 :
2346
(value === '') ? '' : (value < 0.00001) ? 0 : value;
2351
else if (Prototype.Browser.WebKit) {
2352
Element.Methods.setOpacity = function(element, value) {
2353
element = $(element);
2354
element.style.opacity = (value == 1 || value === '') ? '' :
2355
(value < 0.00001) ? 0 : value;
2358
if(element.tagName == 'IMG' && element.width) {
2359
element.width++; element.width--;
2361
var n = document.createTextNode(' ');
2362
element.appendChild(n);
2363
element.removeChild(n);
2369
// Safari returns margins on body which is incorrect if the child is absolutely
2370
// positioned. For performance reasons, redefine Element#cumulativeOffset for
2371
// KHTML/WebKit only.
2372
Element.Methods.cumulativeOffset = function(element) {
2373
var valueT = 0, valueL = 0;
2375
valueT += element.offsetTop || 0;
2376
valueL += element.offsetLeft || 0;
2377
if (element.offsetParent == document.body)
2378
if (Element.getStyle(element, 'position') == 'absolute') break;
2380
element = element.offsetParent;
2383
return Element._returnOffset(valueL, valueT);
2387
if (Prototype.Browser.IE || Prototype.Browser.Opera) {
2388
// IE and Opera are missing .innerHTML support for TABLE-related and SELECT elements
2389
Element.Methods.update = function(element, content) {
2390
element = $(element);
2392
if (content && content.toElement) content = content.toElement();
2393
if (Object.isElement(content)) return element.update().insert(content);
2395
content = Object.toHTML(content);
2396
var tagName = element.tagName.toUpperCase();
2398
if (tagName in Element._insertionTranslations.tags) {
2399
$A(element.childNodes).each(function(node) { element.removeChild(node) });
2400
Element._getContentFromAnonymousElement(tagName, content.stripScripts())
2401
.each(function(node) { element.appendChild(node) });
2403
else element.innerHTML = content.stripScripts();
2405
content.evalScripts.bind(content).defer();
2410
if (document.createElement('div').outerHTML) {
2411
Element.Methods.replace = function(element, content) {
2412
element = $(element);
2414
if (content && content.toElement) content = content.toElement();
2415
if (Object.isElement(content)) {
2416
element.parentNode.replaceChild(content, element);
2420
content = Object.toHTML(content);
2421
var parent = element.parentNode, tagName = parent.tagName.toUpperCase();
2423
if (Element._insertionTranslations.tags[tagName]) {
2424
var nextSibling = element.next();
2425
var fragments = Element._getContentFromAnonymousElement(tagName, content.stripScripts());
2426
parent.removeChild(element);
2428
fragments.each(function(node) { parent.insertBefore(node, nextSibling) });
2430
fragments.each(function(node) { parent.appendChild(node) });
2432
else element.outerHTML = content.stripScripts();
2434
content.evalScripts.bind(content).defer();
2439
Element._returnOffset = function(l, t) {
2440
var result = [l, t];
2446
Element._getContentFromAnonymousElement = function(tagName, html) {
2447
var div = new Element('div'), t = Element._insertionTranslations.tags[tagName];
2449
div.innerHTML = t[0] + html + t[1];
2450
t[2].times(function() { div = div.firstChild });
2451
} else div.innerHTML = html;
2452
return $A(div.childNodes);
2455
Element._insertionTranslations = {
2456
before: function(element, node) {
2457
element.parentNode.insertBefore(node, element);
2459
top: function(element, node) {
2460
element.insertBefore(node, element.firstChild);
2462
bottom: function(element, node) {
2463
element.appendChild(node);
2465
after: function(element, node) {
2466
element.parentNode.insertBefore(node, element.nextSibling);
2469
TABLE: ['<table>', '</table>', 1],
2470
TBODY: ['<table><tbody>', '</tbody></table>', 2],
2471
TR: ['<table><tbody><tr>', '</tr></tbody></table>', 3],
2472
TD: ['<table><tbody><tr><td>', '</td></tr></tbody></table>', 4],
2473
SELECT: ['<select>', '</select>', 1]
2478
Object.extend(this.tags, {
2479
THEAD: this.tags.TBODY,
2480
TFOOT: this.tags.TBODY,
2483
}).call(Element._insertionTranslations);
2485
Element.Methods.Simulated = {
2486
hasAttribute: function(element, attribute) {
2487
attribute = Element._attributeTranslations.has[attribute] || attribute;
2488
var node = $(element).getAttributeNode(attribute);
2489
return node && node.specified;
2493
Element.Methods.ByTag = { };
2495
Object.extend(Element, Element.Methods);
2497
if (!Prototype.BrowserFeatures.ElementExtensions &&
2498
document.createElement('div').__proto__) {
2499
window.HTMLElement = { };
2500
window.HTMLElement.prototype = document.createElement('div').__proto__;
2501
Prototype.BrowserFeatures.ElementExtensions = true;
2504
Element.extend = (function() {
2505
if (Prototype.BrowserFeatures.SpecificElementExtensions)
2508
var Methods = { }, ByTag = Element.Methods.ByTag;
2510
var extend = Object.extend(function(element) {
2511
if (!element || element._extendedByPrototype ||
2512
element.nodeType != 1 || element == window) return element;
2514
var methods = Object.clone(Methods),
2515
tagName = element.tagName, property, value;
2517
// extend methods for specific tags
2518
if (ByTag[tagName]) Object.extend(methods, ByTag[tagName]);
2520
for (property in methods) {
2521
value = methods[property];
2522
if (Object.isFunction(value) && !(property in element))
2523
element[property] = value.methodize();
2526
element._extendedByPrototype = Prototype.emptyFunction;
2530
refresh: function() {
2531
// extend methods for all tags (Safari doesn't need this)
2532
if (!Prototype.BrowserFeatures.ElementExtensions) {
2533
Object.extend(Methods, Element.Methods);
2534
Object.extend(Methods, Element.Methods.Simulated);
2543
Element.hasAttribute = function(element, attribute) {
2544
if (element.hasAttribute) return element.hasAttribute(attribute);
2545
return Element.Methods.Simulated.hasAttribute(element, attribute);
2548
Element.addMethods = function(methods) {
2549
var F = Prototype.BrowserFeatures, T = Element.Methods.ByTag;
2552
Object.extend(Form, Form.Methods);
2553
Object.extend(Form.Element, Form.Element.Methods);
2554
Object.extend(Element.Methods.ByTag, {
2555
"FORM": Object.clone(Form.Methods),
2556
"INPUT": Object.clone(Form.Element.Methods),
2557
"SELECT": Object.clone(Form.Element.Methods),
2558
"TEXTAREA": Object.clone(Form.Element.Methods)
2562
if (arguments.length == 2) {
2563
var tagName = methods;
2564
methods = arguments[1];
2567
if (!tagName) Object.extend(Element.Methods, methods || { });
2569
if (Object.isArray(tagName)) tagName.each(extend);
2570
else extend(tagName);
2573
function extend(tagName) {
2574
tagName = tagName.toUpperCase();
2575
if (!Element.Methods.ByTag[tagName])
2576
Element.Methods.ByTag[tagName] = { };
2577
Object.extend(Element.Methods.ByTag[tagName], methods);
2580
function copy(methods, destination, onlyIfAbsent) {
2581
onlyIfAbsent = onlyIfAbsent || false;
2582
for (var property in methods) {
2583
var value = methods[property];
2584
if (!Object.isFunction(value)) continue;
2585
if (!onlyIfAbsent || !(property in destination))
2586
destination[property] = value.methodize();
2590
function findDOMClass(tagName) {
2593
"OPTGROUP": "OptGroup", "TEXTAREA": "TextArea", "P": "Paragraph",
2594
"FIELDSET": "FieldSet", "UL": "UList", "OL": "OList", "DL": "DList",
2595
"DIR": "Directory", "H1": "Heading", "H2": "Heading", "H3": "Heading",
2596
"H4": "Heading", "H5": "Heading", "H6": "Heading", "Q": "Quote",
2597
"INS": "Mod", "DEL": "Mod", "A": "Anchor", "IMG": "Image", "CAPTION":
2598
"TableCaption", "COL": "TableCol", "COLGROUP": "TableCol", "THEAD":
2599
"TableSection", "TFOOT": "TableSection", "TBODY": "TableSection", "TR":
2600
"TableRow", "TH": "TableCell", "TD": "TableCell", "FRAMESET":
2601
"FrameSet", "IFRAME": "IFrame"
2603
if (trans[tagName]) klass = 'HTML' + trans[tagName] + 'Element';
2604
if (window[klass]) return window[klass];
2605
klass = 'HTML' + tagName + 'Element';
2606
if (window[klass]) return window[klass];
2607
klass = 'HTML' + tagName.capitalize() + 'Element';
2608
if (window[klass]) return window[klass];
2610
window[klass] = { };
2611
window[klass].prototype = document.createElement(tagName).__proto__;
2612
return window[klass];
2615
if (F.ElementExtensions) {
2616
copy(Element.Methods, HTMLElement.prototype);
2617
copy(Element.Methods.Simulated, HTMLElement.prototype, true);
2620
if (F.SpecificElementExtensions) {
2621
for (var tag in Element.Methods.ByTag) {
2622
var klass = findDOMClass(tag);
2623
if (Object.isUndefined(klass)) continue;
2624
copy(T[tag], klass.prototype);
2628
Object.extend(Element, Element.Methods);
2629
delete Element.ByTag;
2631
if (Element.extend.refresh) Element.extend.refresh();
2632
Element.cache = { };
2635
document.viewport = {
2636
getDimensions: function() {
2637
var dimensions = { };
2638
var B = Prototype.Browser;
2639
$w('width height').each(function(d) {
2640
var D = d.capitalize();
2641
dimensions[d] = (B.WebKit && !document.evaluate) ? self['inner' + D] :
2642
(B.Opera) ? document.body['client' + D] : document.documentElement['client' + D];
2647
getWidth: function() {
2648
return this.getDimensions().width;
2651
getHeight: function() {
2652
return this.getDimensions().height;
2655
getScrollOffsets: function() {
2656
return Element._returnOffset(
2657
window.pageXOffset || document.documentElement.scrollLeft || document.body.scrollLeft,
2658
window.pageYOffset || document.documentElement.scrollTop || document.body.scrollTop);
2661
/* Portions of the Selector class are derived from Jack Slocum’s DomQuery,
2662
* part of YUI-Ext version 0.40, distributed under the terms of an MIT-style
2663
* license. Please see http://www.yui-ext.com/ for more information. */
2665
var Selector = Class.create({
2666
initialize: function(expression) {
2667
this.expression = expression.strip();
2668
this.compileMatcher();
2671
shouldUseXPath: function() {
2672
if (!Prototype.BrowserFeatures.XPath) return false;
2674
var e = this.expression;
2676
// Safari 3 chokes on :*-of-type and :empty
2677
if (Prototype.Browser.WebKit &&
2678
(e.include("-of-type") || e.include(":empty")))
2681
// XPath can't do namespaced attributes, nor can it read
2682
// the "checked" property from DOM nodes
2683
if ((/(\[[\w-]*?:|:checked)/).test(this.expression))
2689
compileMatcher: function() {
2690
if (this.shouldUseXPath())
2691
return this.compileXPathMatcher();
2693
var e = this.expression, ps = Selector.patterns, h = Selector.handlers,
2694
c = Selector.criteria, le, p, m;
2696
if (Selector._cache[e]) {
2697
this.matcher = Selector._cache[e];
2701
this.matcher = ["this.matcher = function(root) {",
2702
"var r = root, h = Selector.handlers, c = false, n;"];
2704
while (e && le != e && (/\S/).test(e)) {
2708
if (m = e.match(p)) {
2709
this.matcher.push(Object.isFunction(c[i]) ? c[i](m) :
2710
new Template(c[i]).evaluate(m));
2711
e = e.replace(m[0], '');
2717
this.matcher.push("return h.unique(n);\n}");
2718
eval(this.matcher.join('\n'));
2719
Selector._cache[this.expression] = this.matcher;
2722
compileXPathMatcher: function() {
2723
var e = this.expression, ps = Selector.patterns,
2724
x = Selector.xpath, le, m;
2726
if (Selector._cache[e]) {
2727
this.xpath = Selector._cache[e]; return;
2730
this.matcher = ['.//*'];
2731
while (e && le != e && (/\S/).test(e)) {
2734
if (m = e.match(ps[i])) {
2735
this.matcher.push(Object.isFunction(x[i]) ? x[i](m) :
2736
new Template(x[i]).evaluate(m));
2737
e = e.replace(m[0], '');
2743
this.xpath = this.matcher.join('');
2744
Selector._cache[this.expression] = this.xpath;
2747
findElements: function(root) {
2748
root = root || document;
2749
if (this.xpath) return document._getElementsByXPath(this.xpath, root);
2750
return this.matcher(root);
2753
match: function(element) {
2756
var e = this.expression, ps = Selector.patterns, as = Selector.assertions;
2759
while (e && le !== e && (/\S/).test(e)) {
2763
if (m = e.match(p)) {
2764
// use the Selector.assertions methods unless the selector
2767
this.tokens.push([i, Object.clone(m)]);
2768
e = e.replace(m[0], '');
2770
// reluctantly do a document-wide search
2771
// and look for a match in the array
2772
return this.findElements(document).include(element);
2778
var match = true, name, matches;
2779
for (var i = 0, token; token = this.tokens[i]; i++) {
2780
name = token[0], matches = token[1];
2781
if (!Selector.assertions[name](element, matches)) {
2782
match = false; break;
2789
toString: function() {
2790
return this.expression;
2793
inspect: function() {
2794
return "#<Selector:" + this.expression.inspect() + ">";
2798
Object.extend(Selector, {
2804
adjacent: "/following-sibling::*[1]",
2805
laterSibling: '/following-sibling::*',
2806
tagName: function(m) {
2807
if (m[1] == '*') return '';
2808
return "[local-name()='" + m[1].toLowerCase() +
2809
"' or local-name()='" + m[1].toUpperCase() + "']";
2811
className: "[contains(concat(' ', @class, ' '), ' #{1} ')]",
2813
attrPresence: function(m) {
2814
m[1] = m[1].toLowerCase();
2815
return new Template("[@#{1}]").evaluate(m);
2818
m[1] = m[1].toLowerCase();
2819
m[3] = m[5] || m[6];
2820
return new Template(Selector.xpath.operators[m[2]]).evaluate(m);
2822
pseudo: function(m) {
2823
var h = Selector.xpath.pseudos[m[1]];
2825
if (Object.isFunction(h)) return h(m);
2826
return new Template(Selector.xpath.pseudos[m[1]]).evaluate(m);
2829
'=': "[@#{1}='#{3}']",
2830
'!=': "[@#{1}!='#{3}']",
2831
'^=': "[starts-with(@#{1}, '#{3}')]",
2832
'$=': "[substring(@#{1}, (string-length(@#{1}) - string-length('#{3}') + 1))='#{3}']",
2833
'*=': "[contains(@#{1}, '#{3}')]",
2834
'~=': "[contains(concat(' ', @#{1}, ' '), ' #{3} ')]",
2835
'|=': "[contains(concat('-', @#{1}, '-'), '-#{3}-')]"
2838
'first-child': '[not(preceding-sibling::*)]',
2839
'last-child': '[not(following-sibling::*)]',
2840
'only-child': '[not(preceding-sibling::* or following-sibling::*)]',
2841
'empty': "[count(*) = 0 and (count(text()) = 0 or translate(text(), ' \t\r\n', '') = '')]",
2842
'checked': "[@checked]",
2843
'disabled': "[@disabled]",
2844
'enabled': "[not(@disabled)]",
2845
'not': function(m) {
2846
var e = m[6], p = Selector.patterns,
2847
x = Selector.xpath, le, v;
2850
while (e && le != e && (/\S/).test(e)) {
2853
if (m = e.match(p[i])) {
2854
v = Object.isFunction(x[i]) ? x[i](m) : new Template(x[i]).evaluate(m);
2855
exclusion.push("(" + v.substring(1, v.length - 1) + ")");
2856
e = e.replace(m[0], '');
2861
return "[not(" + exclusion.join(" and ") + ")]";
2863
'nth-child': function(m) {
2864
return Selector.xpath.pseudos.nth("(count(./preceding-sibling::*) + 1) ", m);
2866
'nth-last-child': function(m) {
2867
return Selector.xpath.pseudos.nth("(count(./following-sibling::*) + 1) ", m);
2869
'nth-of-type': function(m) {
2870
return Selector.xpath.pseudos.nth("position() ", m);
2872
'nth-last-of-type': function(m) {
2873
return Selector.xpath.pseudos.nth("(last() + 1 - position()) ", m);
2875
'first-of-type': function(m) {
2876
m[6] = "1"; return Selector.xpath.pseudos['nth-of-type'](m);
2878
'last-of-type': function(m) {
2879
m[6] = "1"; return Selector.xpath.pseudos['nth-last-of-type'](m);
2881
'only-of-type': function(m) {
2882
var p = Selector.xpath.pseudos; return p['first-of-type'](m) + p['last-of-type'](m);
2884
nth: function(fragment, m) {
2885
var mm, formula = m[6], predicate;
2886
if (formula == 'even') formula = '2n+0';
2887
if (formula == 'odd') formula = '2n+1';
2888
if (mm = formula.match(/^(\d+)$/)) // digit only
2889
return '[' + fragment + "= " + mm[1] + ']';
2890
if (mm = formula.match(/^(-?\d*)?n(([+-])(\d+))?/)) { // an+b
2891
if (mm[1] == "-") mm[1] = -1;
2892
var a = mm[1] ? Number(mm[1]) : 1;
2893
var b = mm[2] ? Number(mm[2]) : 0;
2894
predicate = "[((#{fragment} - #{b}) mod #{a} = 0) and " +
2895
"((#{fragment} - #{b}) div #{a} >= 0)]";
2896
return new Template(predicate).evaluate({
2897
fragment: fragment, a: a, b: b });
2904
tagName: 'n = h.tagName(n, r, "#{1}", c); c = false;',
2905
className: 'n = h.className(n, r, "#{1}", c); c = false;',
2906
id: 'n = h.id(n, r, "#{1}", c); c = false;',
2907
attrPresence: 'n = h.attrPresence(n, r, "#{1}"); c = false;',
2909
m[3] = (m[5] || m[6]);
2910
return new Template('n = h.attr(n, r, "#{1}", "#{3}", "#{2}"); c = false;').evaluate(m);
2912
pseudo: function(m) {
2913
if (m[6]) m[6] = m[6].replace(/"/g, '\\"');
2914
return new Template('n = h.pseudo(n, "#{1}", "#{6}", r, c); c = false;').evaluate(m);
2916
descendant: 'c = "descendant";',
2917
child: 'c = "child";',
2918
adjacent: 'c = "adjacent";',
2919
laterSibling: 'c = "laterSibling";'
2923
// combinators must be listed first
2924
// (and descendant needs to be last combinator)
2925
laterSibling: /^\s*~\s*/,
2927
adjacent: /^\s*\+\s*/,
2931
tagName: /^\s*(\*|[\w\-]+)(\b|$)?/,
2932
id: /^#([\w\-\*]+)(\b|$)/,
2933
className: /^\.([\w\-\*]+)(\b|$)/,
2935
/^:((first|last|nth|nth-last|only)(-child|-of-type)|empty|checked|(en|dis)abled|not)(\((.*?)\))?(\b|$|(?=\s|[:+~>]))/,
2936
attrPresence: /^\[([\w]+)\]/,
2937
attr: /\[((?:[\w-]*:)?[\w-]+)\s*(?:([!^$*~|]?=)\s*((['"])([^\4]*?)\4|([^'"][^\]]*?)))?\]/
2940
// for Selector.match and Element#match
2942
tagName: function(element, matches) {
2943
return matches[1].toUpperCase() == element.tagName.toUpperCase();
2946
className: function(element, matches) {
2947
return Element.hasClassName(element, matches[1]);
2950
id: function(element, matches) {
2951
return element.id === matches[1];
2954
attrPresence: function(element, matches) {
2955
return Element.hasAttribute(element, matches[1]);
2958
attr: function(element, matches) {
2959
var nodeValue = Element.readAttribute(element, matches[1]);
2960
return Selector.operators[matches[2]](nodeValue, matches[3]);
2965
// UTILITY FUNCTIONS
2966
// joins two collections
2967
concat: function(a, b) {
2968
for (var i = 0, node; node = b[i]; i++)
2973
// marks an array of nodes for counting
2974
mark: function(nodes) {
2975
for (var i = 0, node; node = nodes[i]; i++)
2976
node._counted = true;
2980
unmark: function(nodes) {
2981
for (var i = 0, node; node = nodes[i]; i++)
2982
node._counted = undefined;
2986
// mark each child node with its position (for nth calls)
2987
// "ofType" flag indicates whether we're indexing for nth-of-type
2988
// rather than nth-child
2989
index: function(parentNode, reverse, ofType) {
2990
parentNode._counted = true;
2992
for (var nodes = parentNode.childNodes, i = nodes.length - 1, j = 1; i >= 0; i--) {
2993
var node = nodes[i];
2994
if (node.nodeType == 1 && (!ofType || node._counted)) node.nodeIndex = j++;
2997
for (var i = 0, j = 1, nodes = parentNode.childNodes; node = nodes[i]; i++)
2998
if (node.nodeType == 1 && (!ofType || node._counted)) node.nodeIndex = j++;
3002
// filters out duplicates and extends all nodes
3003
unique: function(nodes) {
3004
if (nodes.length == 0) return nodes;
3005
var results = [], n;
3006
for (var i = 0, l = nodes.length; i < l; i++)
3007
if (!(n = nodes[i])._counted) {
3009
results.push(Element.extend(n));
3011
return Selector.handlers.unmark(results);
3014
// COMBINATOR FUNCTIONS
3015
descendant: function(nodes) {
3016
var h = Selector.handlers;
3017
for (var i = 0, results = [], node; node = nodes[i]; i++)
3018
h.concat(results, node.getElementsByTagName('*'));
3022
child: function(nodes) {
3023
var h = Selector.handlers;
3024
for (var i = 0, results = [], node; node = nodes[i]; i++) {
3025
for (var j = 0, child; child = node.childNodes[j]; j++)
3026
if (child.nodeType == 1 && child.tagName != '!') results.push(child);
3031
adjacent: function(nodes) {
3032
for (var i = 0, results = [], node; node = nodes[i]; i++) {
3033
var next = this.nextElementSibling(node);
3034
if (next) results.push(next);
3039
laterSibling: function(nodes) {
3040
var h = Selector.handlers;
3041
for (var i = 0, results = [], node; node = nodes[i]; i++)
3042
h.concat(results, Element.nextSiblings(node));
3046
nextElementSibling: function(node) {
3047
while (node = node.nextSibling)
3048
if (node.nodeType == 1) return node;
3052
previousElementSibling: function(node) {
3053
while (node = node.previousSibling)
3054
if (node.nodeType == 1) return node;
3059
tagName: function(nodes, root, tagName, combinator) {
3060
var uTagName = tagName.toUpperCase();
3061
var results = [], h = Selector.handlers;
3064
// fastlane for ordinary descendant combinators
3065
if (combinator == "descendant") {
3066
for (var i = 0, node; node = nodes[i]; i++)
3067
h.concat(results, node.getElementsByTagName(tagName));
3069
} else nodes = this[combinator](nodes);
3070
if (tagName == "*") return nodes;
3072
for (var i = 0, node; node = nodes[i]; i++)
3073
if (node.tagName.toUpperCase() === uTagName) results.push(node);
3075
} else return root.getElementsByTagName(tagName);
3078
id: function(nodes, root, id, combinator) {
3079
var targetNode = $(id), h = Selector.handlers;
3080
if (!targetNode) return [];
3081
if (!nodes && root == document) return [targetNode];
3084
if (combinator == 'child') {
3085
for (var i = 0, node; node = nodes[i]; i++)
3086
if (targetNode.parentNode == node) return [targetNode];
3087
} else if (combinator == 'descendant') {
3088
for (var i = 0, node; node = nodes[i]; i++)
3089
if (Element.descendantOf(targetNode, node)) return [targetNode];
3090
} else if (combinator == 'adjacent') {
3091
for (var i = 0, node; node = nodes[i]; i++)
3092
if (Selector.handlers.previousElementSibling(targetNode) == node)
3093
return [targetNode];
3094
} else nodes = h[combinator](nodes);
3096
for (var i = 0, node; node = nodes[i]; i++)
3097
if (node == targetNode) return [targetNode];
3100
return (targetNode && Element.descendantOf(targetNode, root)) ? [targetNode] : [];
3103
className: function(nodes, root, className, combinator) {
3104
if (nodes && combinator) nodes = this[combinator](nodes);
3105
return Selector.handlers.byClassName(nodes, root, className);
3108
byClassName: function(nodes, root, className) {
3109
if (!nodes) nodes = Selector.handlers.descendant([root]);
3110
var needle = ' ' + className + ' ';
3111
for (var i = 0, results = [], node, nodeClassName; node = nodes[i]; i++) {
3112
nodeClassName = node.className;
3113
if (nodeClassName.length == 0) continue;
3114
if (nodeClassName == className || (' ' + nodeClassName + ' ').include(needle))
3120
attrPresence: function(nodes, root, attr) {
3121
if (!nodes) nodes = root.getElementsByTagName("*");
3123
for (var i = 0, node; node = nodes[i]; i++)
3124
if (Element.hasAttribute(node, attr)) results.push(node);
3128
attr: function(nodes, root, attr, value, operator) {
3129
if (!nodes) nodes = root.getElementsByTagName("*");
3130
var handler = Selector.operators[operator], results = [];
3131
for (var i = 0, node; node = nodes[i]; i++) {
3132
var nodeValue = Element.readAttribute(node, attr);
3133
if (nodeValue === null) continue;
3134
if (handler(nodeValue, value)) results.push(node);
3139
pseudo: function(nodes, name, value, root, combinator) {
3140
if (nodes && combinator) nodes = this[combinator](nodes);
3141
if (!nodes) nodes = root.getElementsByTagName("*");
3142
return Selector.pseudos[name](nodes, value, root);
3147
'first-child': function(nodes, value, root) {
3148
for (var i = 0, results = [], node; node = nodes[i]; i++) {
3149
if (Selector.handlers.previousElementSibling(node)) continue;
3154
'last-child': function(nodes, value, root) {
3155
for (var i = 0, results = [], node; node = nodes[i]; i++) {
3156
if (Selector.handlers.nextElementSibling(node)) continue;
3161
'only-child': function(nodes, value, root) {
3162
var h = Selector.handlers;
3163
for (var i = 0, results = [], node; node = nodes[i]; i++)
3164
if (!h.previousElementSibling(node) && !h.nextElementSibling(node))
3168
'nth-child': function(nodes, formula, root) {
3169
return Selector.pseudos.nth(nodes, formula, root);
3171
'nth-last-child': function(nodes, formula, root) {
3172
return Selector.pseudos.nth(nodes, formula, root, true);
3174
'nth-of-type': function(nodes, formula, root) {
3175
return Selector.pseudos.nth(nodes, formula, root, false, true);
3177
'nth-last-of-type': function(nodes, formula, root) {
3178
return Selector.pseudos.nth(nodes, formula, root, true, true);
3180
'first-of-type': function(nodes, formula, root) {
3181
return Selector.pseudos.nth(nodes, "1", root, false, true);
3183
'last-of-type': function(nodes, formula, root) {
3184
return Selector.pseudos.nth(nodes, "1", root, true, true);
3186
'only-of-type': function(nodes, formula, root) {
3187
var p = Selector.pseudos;
3188
return p['last-of-type'](p['first-of-type'](nodes, formula, root), formula, root);
3191
// handles the an+b logic
3192
getIndices: function(a, b, total) {
3193
if (a == 0) return b > 0 ? [b] : [];
3194
return $R(1, total).inject([], function(memo, i) {
3195
if (0 == (i - b) % a && (i - b) / a >= 0) memo.push(i);
3200
// handles nth(-last)-child, nth(-last)-of-type, and (first|last)-of-type
3201
nth: function(nodes, formula, root, reverse, ofType) {
3202
if (nodes.length == 0) return [];
3203
if (formula == 'even') formula = '2n+0';
3204
if (formula == 'odd') formula = '2n+1';
3205
var h = Selector.handlers, results = [], indexed = [], m;
3207
for (var i = 0, node; node = nodes[i]; i++) {
3208
if (!node.parentNode._counted) {
3209
h.index(node.parentNode, reverse, ofType);
3210
indexed.push(node.parentNode);
3213
if (formula.match(/^\d+$/)) { // just a number
3214
formula = Number(formula);
3215
for (var i = 0, node; node = nodes[i]; i++)
3216
if (node.nodeIndex == formula) results.push(node);
3217
} else if (m = formula.match(/^(-?\d*)?n(([+-])(\d+))?/)) { // an+b
3218
if (m[1] == "-") m[1] = -1;
3219
var a = m[1] ? Number(m[1]) : 1;
3220
var b = m[2] ? Number(m[2]) : 0;
3221
var indices = Selector.pseudos.getIndices(a, b, nodes.length);
3222
for (var i = 0, node, l = indices.length; node = nodes[i]; i++) {
3223
for (var j = 0; j < l; j++)
3224
if (node.nodeIndex == indices[j]) results.push(node);
3232
'empty': function(nodes, value, root) {
3233
for (var i = 0, results = [], node; node = nodes[i]; i++) {
3234
// IE treats comments as element nodes
3235
if (node.tagName == '!' || (node.firstChild && !node.innerHTML.match(/^\s*$/))) continue;
3241
'not': function(nodes, selector, root) {
3242
var h = Selector.handlers, selectorType, m;
3243
var exclusions = new Selector(selector).findElements(root);
3245
for (var i = 0, results = [], node; node = nodes[i]; i++)
3246
if (!node._counted) results.push(node);
3247
h.unmark(exclusions);
3251
'enabled': function(nodes, value, root) {
3252
for (var i = 0, results = [], node; node = nodes[i]; i++)
3253
if (!node.disabled) results.push(node);
3257
'disabled': function(nodes, value, root) {
3258
for (var i = 0, results = [], node; node = nodes[i]; i++)
3259
if (node.disabled) results.push(node);
3263
'checked': function(nodes, value, root) {
3264
for (var i = 0, results = [], node; node = nodes[i]; i++)
3265
if (node.checked) results.push(node);
3271
'=': function(nv, v) { return nv == v; },
3272
'!=': function(nv, v) { return nv != v; },
3273
'^=': function(nv, v) { return nv.startsWith(v); },
3274
'$=': function(nv, v) { return nv.endsWith(v); },
3275
'*=': function(nv, v) { return nv.include(v); },
3276
'~=': function(nv, v) { return (' ' + nv + ' ').include(' ' + v + ' '); },
3277
'|=': function(nv, v) { return ('-' + nv.toUpperCase() + '-').include('-' + v.toUpperCase() + '-'); }
3280
matchElements: function(elements, expression) {
3281
var matches = new Selector(expression).findElements(), h = Selector.handlers;
3283
for (var i = 0, results = [], element; element = elements[i]; i++)
3284
if (element._counted) results.push(element);
3289
findElement: function(elements, expression, index) {
3290
if (Object.isNumber(expression)) {
3291
index = expression; expression = false;
3293
return Selector.matchElements(elements, expression || '*')[index || 0];
3296
findChildElements: function(element, expressions) {
3297
var exprs = expressions.join(',');
3299
exprs.scan(/(([\w#:.~>+()\s-]+|\*|\[.*?\])+)\s*(,|$)/, function(m) {
3300
expressions.push(m[1].strip());
3302
var results = [], h = Selector.handlers;
3303
for (var i = 0, l = expressions.length, selector; i < l; i++) {
3304
selector = new Selector(expressions[i].strip());
3305
h.concat(results, selector.findElements(element));
3307
return (l > 1) ? h.unique(results) : results;
3311
if (Prototype.Browser.IE) {
3312
// IE returns comment nodes on getElementsByTagName("*").
3314
Selector.handlers.concat = function(a, b) {
3315
for (var i = 0, node; node = b[i]; i++)
3316
if (node.tagName !== "!") a.push(node);
3322
return Selector.findChildElements(document, $A(arguments));
3325
reset: function(form) {
3330
serializeElements: function(elements, options) {
3331
if (typeof options != 'object') options = { hash: !!options };
3332
else if (Object.isUndefined(options.hash)) options.hash = true;
3333
var key, value, submitted = false, submit = options.submit;
3335
var data = elements.inject({ }, function(result, element) {
3336
if (!element.disabled && element.name) {
3337
key = element.name; value = $(element).getValue();
3338
if (value != null && (element.type != 'submit' || (!submitted &&
3339
submit !== false && (!submit || key == submit) && (submitted = true)))) {
3340
if (key in result) {
3341
// a key is already present; construct an array of values
3342
if (!Object.isArray(result[key])) result[key] = [result[key]];
3343
result[key].push(value);
3345
else result[key] = value;
3351
return options.hash ? data : Object.toQueryString(data);
3356
serialize: function(form, options) {
3357
return Form.serializeElements(Form.getElements(form), options);
3360
getElements: function(form) {
3361
return $A($(form).getElementsByTagName('*')).inject([],
3362
function(elements, child) {
3363
if (Form.Element.Serializers[child.tagName.toLowerCase()])
3364
elements.push(Element.extend(child));
3370
getInputs: function(form, typeName, name) {
3372
var inputs = form.getElementsByTagName('input');
3374
if (!typeName && !name) return $A(inputs).map(Element.extend);
3376
for (var i = 0, matchingInputs = [], length = inputs.length; i < length; i++) {
3377
var input = inputs[i];
3378
if ((typeName && input.type != typeName) || (name && input.name != name))
3380
matchingInputs.push(Element.extend(input));
3383
return matchingInputs;
3386
disable: function(form) {
3388
Form.getElements(form).invoke('disable');
3392
enable: function(form) {
3394
Form.getElements(form).invoke('enable');
3398
findFirstElement: function(form) {
3399
var elements = $(form).getElements().findAll(function(element) {
3400
return 'hidden' != element.type && !element.disabled;
3402
var firstByIndex = elements.findAll(function(element) {
3403
return element.hasAttribute('tabIndex') && element.tabIndex >= 0;
3404
}).sortBy(function(element) { return element.tabIndex }).first();
3406
return firstByIndex ? firstByIndex : elements.find(function(element) {
3407
return ['input', 'select', 'textarea'].include(element.tagName.toLowerCase());
3411
focusFirstElement: function(form) {
3413
form.findFirstElement().activate();
3417
request: function(form, options) {
3418
form = $(form), options = Object.clone(options || { });
3420
var params = options.parameters, action = form.readAttribute('action') || '';
3421
if (action.blank()) action = window.location.href;
3422
options.parameters = form.serialize(true);
3425
if (Object.isString(params)) params = params.toQueryParams();
3426
Object.extend(options.parameters, params);
3429
if (form.hasAttribute('method') && !options.method)
3430
options.method = form.method;
3432
return new Ajax.Request(action, options);
3436
/*--------------------------------------------------------------------------*/
3439
focus: function(element) {
3444
select: function(element) {
3445
$(element).select();
3450
Form.Element.Methods = {
3451
serialize: function(element) {
3452
element = $(element);
3453
if (!element.disabled && element.name) {
3454
var value = element.getValue();
3455
if (value != undefined) {
3457
pair[element.name] = value;
3458
return Object.toQueryString(pair);
3464
getValue: function(element) {
3465
element = $(element);
3466
var method = element.tagName.toLowerCase();
3467
return Form.Element.Serializers[method](element);
3470
setValue: function(element, value) {
3471
element = $(element);
3472
var method = element.tagName.toLowerCase();
3473
Form.Element.Serializers[method](element, value);
3477
clear: function(element) {
3478
$(element).value = '';
3482
present: function(element) {
3483
return $(element).value != '';
3486
activate: function(element) {
3487
element = $(element);
3490
if (element.select && (element.tagName.toLowerCase() != 'input' ||
3491
!['button', 'reset', 'submit'].include(element.type)))
3497
disable: function(element) {
3498
element = $(element);
3500
element.disabled = true;
3504
enable: function(element) {
3505
element = $(element);
3506
element.disabled = false;
3511
/*--------------------------------------------------------------------------*/
3513
var Field = Form.Element;
3514
var $F = Form.Element.Methods.getValue;
3516
/*--------------------------------------------------------------------------*/
3518
Form.Element.Serializers = {
3519
input: function(element, value) {
3520
switch (element.type.toLowerCase()) {
3523
return Form.Element.Serializers.inputSelector(element, value);
3525
return Form.Element.Serializers.textarea(element, value);
3529
inputSelector: function(element, value) {
3530
if (Object.isUndefined(value)) return element.checked ? element.value : null;
3531
else element.checked = !!value;
3534
textarea: function(element, value) {
3535
if (Object.isUndefined(value)) return element.value;
3536
else element.value = value;
3539
select: function(element, index) {
3540
if (Object.isUndefined(index))
3541
return this[element.type == 'select-one' ?
3542
'selectOne' : 'selectMany'](element);
3544
var opt, value, single = !Object.isArray(index);
3545
for (var i = 0, length = element.length; i < length; i++) {
3546
opt = element.options[i];
3547
value = this.optionValue(opt);
3549
if (value == index) {
3550
opt.selected = true;
3554
else opt.selected = index.include(value);
3559
selectOne: function(element) {
3560
var index = element.selectedIndex;
3561
return index >= 0 ? this.optionValue(element.options[index]) : null;
3564
selectMany: function(element) {
3565
var values, length = element.length;
3566
if (!length) return null;
3568
for (var i = 0, values = []; i < length; i++) {
3569
var opt = element.options[i];
3570
if (opt.selected) values.push(this.optionValue(opt));
3575
optionValue: function(opt) {
3576
// extend element because hasAttribute may not be native
3577
return Element.extend(opt).hasAttribute('value') ? opt.value : opt.text;
3581
/*--------------------------------------------------------------------------*/
3583
Abstract.TimedObserver = Class.create(PeriodicalExecuter, {
3584
initialize: function($super, element, frequency, callback) {
3585
$super(callback, frequency);
3586
this.element = $(element);
3587
this.lastValue = this.getValue();
3590
execute: function() {
3591
var value = this.getValue();
3592
if (Object.isString(this.lastValue) && Object.isString(value) ?
3593
this.lastValue != value : String(this.lastValue) != String(value)) {
3594
this.callback(this.element, value);
3595
this.lastValue = value;
3600
Form.Element.Observer = Class.create(Abstract.TimedObserver, {
3601
getValue: function() {
3602
return Form.Element.getValue(this.element);
3606
Form.Observer = Class.create(Abstract.TimedObserver, {
3607
getValue: function() {
3608
return Form.serialize(this.element);
3612
/*--------------------------------------------------------------------------*/
3614
Abstract.EventObserver = Class.create({
3615
initialize: function(element, callback) {
3616
this.element = $(element);
3617
this.callback = callback;
3619
this.lastValue = this.getValue();
3620
if (this.element.tagName.toLowerCase() == 'form')
3621
this.registerFormCallbacks();
3623
this.registerCallback(this.element);
3626
onElementEvent: function() {
3627
var value = this.getValue();
3628
if (this.lastValue != value) {
3629
this.callback(this.element, value);
3630
this.lastValue = value;
3634
registerFormCallbacks: function() {
3635
Form.getElements(this.element).each(this.registerCallback, this);
3638
registerCallback: function(element) {
3640
switch (element.type.toLowerCase()) {
3643
Event.observe(element, 'click', this.onElementEvent.bind(this));
3646
Event.observe(element, 'change', this.onElementEvent.bind(this));
3653
Form.Element.EventObserver = Class.create(Abstract.EventObserver, {
3654
getValue: function() {
3655
return Form.Element.getValue(this.element);
3659
Form.EventObserver = Class.create(Abstract.EventObserver, {
3660
getValue: function() {
3661
return Form.serialize(this.element);
3664
if (!window.Event) var Event = { };
3666
Object.extend(Event, {
3684
relatedTarget: function(event) {
3686
switch(event.type) {
3687
case 'mouseover': element = event.fromElement; break;
3688
case 'mouseout': element = event.toElement; break;
3689
default: return null;
3691
return Element.extend(element);
3695
Event.Methods = (function() {
3698
if (Prototype.Browser.IE) {
3699
var buttonMap = { 0: 1, 1: 4, 2: 2 };
3700
isButton = function(event, code) {
3701
return event.button == buttonMap[code];
3704
} else if (Prototype.Browser.WebKit) {
3705
isButton = function(event, code) {
3707
case 0: return event.which == 1 && !event.metaKey;
3708
case 1: return event.which == 1 && event.metaKey;
3709
default: return false;
3714
isButton = function(event, code) {
3715
return event.which ? (event.which === code + 1) : (event.button === code);
3720
isLeftClick: function(event) { return isButton(event, 0) },
3721
isMiddleClick: function(event) { return isButton(event, 1) },
3722
isRightClick: function(event) { return isButton(event, 2) },
3724
element: function(event) {
3725
var node = Event.extend(event).target;
3726
return Element.extend(node.nodeType == Node.TEXT_NODE ? node.parentNode : node);
3729
findElement: function(event, expression) {
3730
var element = Event.element(event);
3731
if (!expression) return element;
3732
var elements = [element].concat(element.ancestors());
3733
return Selector.findElement(elements, expression, 0);
3736
pointer: function(event) {
3738
x: event.pageX || (event.clientX +
3739
(document.documentElement.scrollLeft || document.body.scrollLeft)),
3740
y: event.pageY || (event.clientY +
3741
(document.documentElement.scrollTop || document.body.scrollTop))
3745
pointerX: function(event) { return Event.pointer(event).x },
3746
pointerY: function(event) { return Event.pointer(event).y },
3748
stop: function(event) {
3749
Event.extend(event);
3750
event.preventDefault();
3751
event.stopPropagation();
3752
event.stopped = true;
3757
Event.extend = (function() {
3758
var methods = Object.keys(Event.Methods).inject({ }, function(m, name) {
3759
m[name] = Event.Methods[name].methodize();
3763
if (Prototype.Browser.IE) {
3764
Object.extend(methods, {
3765
stopPropagation: function() { this.cancelBubble = true },
3766
preventDefault: function() { this.returnValue = false },
3767
inspect: function() { return "[object Event]" }
3770
return function(event) {
3771
if (!event) return false;
3772
if (event._extendedByPrototype) return event;
3774
event._extendedByPrototype = Prototype.emptyFunction;
3775
var pointer = Event.pointer(event);
3776
Object.extend(event, {
3777
target: event.srcElement,
3778
relatedTarget: Event.relatedTarget(event),
3782
return Object.extend(event, methods);
3786
Event.prototype = Event.prototype || document.createEvent("HTMLEvents").__proto__;
3787
Object.extend(Event.prototype, methods);
3792
Object.extend(Event, (function() {
3793
var cache = Event.cache;
3795
function getEventID(element) {
3796
if (element._eventID) return element._eventID;
3797
arguments.callee.id = arguments.callee.id || 1;
3798
return element._eventID = ++arguments.callee.id;
3801
function getDOMEventName(eventName) {
3802
if (eventName && eventName.include(':')) return "dataavailable";
3806
function getCacheForID(id) {
3807
return cache[id] = cache[id] || { };
3810
function getWrappersForEventName(id, eventName) {
3811
var c = getCacheForID(id);
3812
return c[eventName] = c[eventName] || [];
3815
function createWrapper(element, eventName, handler) {
3816
var id = getEventID(element);
3817
var c = getWrappersForEventName(id, eventName);
3818
if (c.pluck("handler").include(handler)) return false;
3820
var wrapper = function(event) {
3821
if (!Event || !Event.extend ||
3822
(event.eventName && event.eventName != eventName))
3825
Event.extend(event);
3826
handler.call(element, event);
3829
wrapper.handler = handler;
3834
function findWrapper(id, eventName, handler) {
3835
var c = getWrappersForEventName(id, eventName);
3836
return c.find(function(wrapper) { return wrapper.handler == handler });
3839
function destroyWrapper(id, eventName, handler) {
3840
var c = getCacheForID(id);
3841
if (!c[eventName]) return false;
3842
c[eventName] = c[eventName].without(findWrapper(id, eventName, handler));
3845
function destroyCache() {
3846
for (var id in cache)
3847
for (var eventName in cache[id])
3848
cache[id][eventName] = null;
3851
if (window.attachEvent) {
3852
window.attachEvent("onunload", destroyCache);
3856
observe: function(element, eventName, handler) {
3857
element = $(element);
3858
var name = getDOMEventName(eventName);
3860
var wrapper = createWrapper(element, eventName, handler);
3861
if (!wrapper) return element;
3863
if (element.addEventListener) {
3864
element.addEventListener(name, wrapper, false);
3866
element.attachEvent("on" + name, wrapper);
3872
stopObserving: function(element, eventName, handler) {
3873
element = $(element);
3874
var id = getEventID(element), name = getDOMEventName(eventName);
3876
if (!handler && eventName) {
3877
getWrappersForEventName(id, eventName).each(function(wrapper) {
3878
element.stopObserving(eventName, wrapper.handler);
3882
} else if (!eventName) {
3883
Object.keys(getCacheForID(id)).each(function(eventName) {
3884
element.stopObserving(eventName);
3889
var wrapper = findWrapper(id, eventName, handler);
3890
if (!wrapper) return element;
3892
if (element.removeEventListener) {
3893
element.removeEventListener(name, wrapper, false);
3895
element.detachEvent("on" + name, wrapper);
3898
destroyWrapper(id, eventName, handler);
3903
fire: function(element, eventName, memo) {
3904
element = $(element);
3905
if (element == document && document.createEvent && !element.dispatchEvent)
3906
element = document.documentElement;
3909
if (document.createEvent) {
3910
event = document.createEvent("HTMLEvents");
3911
event.initEvent("dataavailable", true, true);
3913
event = document.createEventObject();
3914
event.eventType = "ondataavailable";
3917
event.eventName = eventName;
3918
event.memo = memo || { };
3920
if (document.createEvent) {
3921
element.dispatchEvent(event);
3923
element.fireEvent(event.eventType, event);
3926
return Event.extend(event);
3931
Object.extend(Event, Event.Methods);
3933
Element.addMethods({
3935
observe: Event.observe,
3936
stopObserving: Event.stopObserving
3939
Object.extend(document, {
3940
fire: Element.Methods.fire.methodize(),
3941
observe: Element.Methods.observe.methodize(),
3942
stopObserving: Element.Methods.stopObserving.methodize(),
3947
/* Support for the DOMContentLoaded event is based on work by Dan Webb,
3948
Matthias Miller, Dean Edwards and John Resig. */
3952
function fireContentLoadedEvent() {
3953
if (document.loaded) return;
3954
if (timer) window.clearInterval(timer);
3955
document.fire("dom:loaded");
3956
document.loaded = true;
3959
if (document.addEventListener) {
3960
if (Prototype.Browser.WebKit) {
3961
timer = window.setInterval(function() {
3962
if (/loaded|complete/.test(document.readyState))
3963
fireContentLoadedEvent();
3966
Event.observe(window, "load", fireContentLoadedEvent);
3969
document.addEventListener("DOMContentLoaded",
3970
fireContentLoadedEvent, false);
3974
document.write("<script id=__onDOMContentLoaded defer src=//:><\/script>");
3975
$("__onDOMContentLoaded").onreadystatechange = function() {
3976
if (this.readyState == "complete") {
3977
this.onreadystatechange = null;
3978
fireContentLoadedEvent();
3983
/*------------------------------- DEPRECATED -------------------------------*/
3985
Hash.toQueryString = Object.toQueryString;
3987
var Toggle = { display: Element.toggle };
3989
Element.Methods.childOf = Element.Methods.descendantOf;
3992
Before: function(element, content) {
3993
return Element.insert(element, {before:content});
3996
Top: function(element, content) {
3997
return Element.insert(element, {top:content});
4000
Bottom: function(element, content) {
4001
return Element.insert(element, {bottom:content});
4004
After: function(element, content) {
4005
return Element.insert(element, {after:content});
4009
var $continue = new Error('"throw $continue" is deprecated, use "return" instead');
4011
// This should be moved to script.aculo.us; notice the deprecated methods
4012
// further below, that map to the newer Element methods.
4014
// set to true if needed, warning: firefox performance problems
4015
// NOT neeeded for page scrolling, only if draggable contained in
4016
// scrollable elements
4017
includeScrollOffsets: false,
4019
// must be called before calling withinIncludingScrolloffset, every time the
4021
prepare: function() {
4022
this.deltaX = window.pageXOffset
4023
|| document.documentElement.scrollLeft
4024
|| document.body.scrollLeft
4026
this.deltaY = window.pageYOffset
4027
|| document.documentElement.scrollTop
4028
|| document.body.scrollTop
4032
// caches x/y coordinate pair to use with overlap
4033
within: function(element, x, y) {
4034
if (this.includeScrollOffsets)
4035
return this.withinIncludingScrolloffsets(element, x, y);
4038
this.offset = Element.cumulativeOffset(element);
4040
return (y >= this.offset[1] &&
4041
y < this.offset[1] + element.offsetHeight &&
4042
x >= this.offset[0] &&
4043
x < this.offset[0] + element.offsetWidth);
4046
withinIncludingScrolloffsets: function(element, x, y) {
4047
var offsetcache = Element.cumulativeScrollOffset(element);
4049
this.xcomp = x + offsetcache[0] - this.deltaX;
4050
this.ycomp = y + offsetcache[1] - this.deltaY;
4051
this.offset = Element.cumulativeOffset(element);
4053
return (this.ycomp >= this.offset[1] &&
4054
this.ycomp < this.offset[1] + element.offsetHeight &&
4055
this.xcomp >= this.offset[0] &&
4056
this.xcomp < this.offset[0] + element.offsetWidth);
4059
// within must be called directly before
4060
overlap: function(mode, element) {
4061
if (!mode) return 0;
4062
if (mode == 'vertical')
4063
return ((this.offset[1] + element.offsetHeight) - this.ycomp) /
4064
element.offsetHeight;
4065
if (mode == 'horizontal')
4066
return ((this.offset[0] + element.offsetWidth) - this.xcomp) /
4067
element.offsetWidth;
4070
// Deprecation layer -- use newer Element methods now (1.5.2).
4072
cumulativeOffset: Element.Methods.cumulativeOffset,
4074
positionedOffset: Element.Methods.positionedOffset,
4076
absolutize: function(element) {
4078
return Element.absolutize(element);
4081
relativize: function(element) {
4083
return Element.relativize(element);
4086
realOffset: Element.Methods.cumulativeScrollOffset,
4088
offsetParent: Element.Methods.getOffsetParent,
4090
page: Element.Methods.viewportOffset,
4092
clone: function(source, target, options) {
4093
options = options || { };
4094
return Element.clonePosition(target, source, options);
4098
/*--------------------------------------------------------------------------*/
4100
if (!document.getElementsByClassName) document.getElementsByClassName = function(instanceMethods){
4101
function iter(name) {
4102
return name.blank() ? null : "[contains(concat(' ', @class, ' '), ' " + name + " ')]";
4105
instanceMethods.getElementsByClassName = Prototype.BrowserFeatures.XPath ?
4106
function(element, className) {
4107
className = className.toString().strip();
4108
var cond = /\s/.test(className) ? $w(className).map(iter).join('') : iter(className);
4109
return cond ? document._getElementsByXPath('.//*' + cond, element) : [];
4110
} : function(element, className) {
4111
className = className.toString().strip();
4112
var elements = [], classNames = (/\s/.test(className) ? $w(className) : null);
4113
if (!classNames && !className) return elements;
4115
var nodes = $(element).getElementsByTagName('*');
4116
className = ' ' + className + ' ';
4118
for (var i = 0, child, cn; child = nodes[i]; i++) {
4119
if (child.className && (cn = ' ' + child.className + ' ') && (cn.include(className) ||
4120
(classNames && classNames.all(function(name) {
4121
return !name.toString().blank() && cn.include(' ' + name + ' ');
4123
elements.push(Element.extend(child));
4128
return function(className, parentElement) {
4129
return $(parentElement || document.body).getElementsByClassName(className);
4133
/*--------------------------------------------------------------------------*/
4135
Element.ClassNames = Class.create();
4136
Element.ClassNames.prototype = {
4137
initialize: function(element) {
4138
this.element = $(element);
4141
_each: function(iterator) {
4142
this.element.className.split(/\s+/).select(function(name) {
4143
return name.length > 0;
4147
set: function(className) {
4148
this.element.className = className;
4151
add: function(classNameToAdd) {
4152
if (this.include(classNameToAdd)) return;
4153
this.set($A(this).concat(classNameToAdd).join(' '));
4156
remove: function(classNameToRemove) {
4157
if (!this.include(classNameToRemove)) return;
4158
this.set($A(this).without(classNameToRemove).join(' '));
4161
toString: function() {
4162
return $A(this).join(' ');
4166
Object.extend(Element.ClassNames.prototype, Enumerable);
4168
/*--------------------------------------------------------------------------*/
4170
Element.addMethods();
b'\\ No newline at end of file'