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authorerdgeist <>2008-06-10 19:47:32 +0000
committererdgeist <>2008-06-10 19:47:32 +0000
commit72e5fa568ed44c0903dd845118214c9009792eae (patch)
tree57c6ed637be1c9b3dc7c3a8b93f5d49750726bcd /prototype-1.6.0.2.js
parent2e8ad294951815bc8c2e1f37cfa3d4d4bff364af (diff)
Now we do Ajax ourselves, no need for the expensive prototype framwork.
Diffstat (limited to 'prototype-1.6.0.2.js')
-rw-r--r--prototype-1.6.0.2.js4222
1 files changed, 0 insertions, 4222 deletions
diff --git a/prototype-1.6.0.2.js b/prototype-1.6.0.2.js
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1/* Prototype JavaScript framework, version 1.6.0.2
2 * (c) 2005-2008 Sam Stephenson
3 *
4 * Prototype is freely distributable under the terms of an MIT-style license.
5 * For details, see the Prototype web site: http://www.prototypejs.org/
6 *
7 *--------------------------------------------------------------------------*/
8
9var Prototype = {
10 Version: '1.6.0.2',
11
12 Browser: {
13 IE: !!(window.attachEvent && !window.opera),
14 Opera: !!window.opera,
15 WebKit: navigator.userAgent.indexOf('AppleWebKit/') > -1,
16 Gecko: navigator.userAgent.indexOf('Gecko') > -1 && navigator.userAgent.indexOf('KHTML') == -1,
17 MobileSafari: !!navigator.userAgent.match(/Apple.*Mobile.*Safari/)
18 },
19
20 BrowserFeatures: {
21 XPath: !!document.evaluate,
22 ElementExtensions: !!window.HTMLElement,
23 SpecificElementExtensions:
24 document.createElement('div').__proto__ &&
25 document.createElement('div').__proto__ !==
26 document.createElement('form').__proto__
27 },
28
29 ScriptFragment: '<script[^>]*>([\\S\\s]*?)<\/script>',
30 JSONFilter: /^\/\*-secure-([\s\S]*)\*\/\s*$/,
31
32 emptyFunction: function() { },
33 K: function(x) { return x }
34};
35
36if (Prototype.Browser.MobileSafari)
37 Prototype.BrowserFeatures.SpecificElementExtensions = false;
38
39
40/* Based on Alex Arnell's inheritance implementation. */
41var Class = {
42 create: function() {
43 var parent = null, properties = $A(arguments);
44 if (Object.isFunction(properties[0]))
45 parent = properties.shift();
46
47 function klass() {
48 this.initialize.apply(this, arguments);
49 }
50
51 Object.extend(klass, Class.Methods);
52 klass.superclass = parent;
53 klass.subclasses = [];
54
55 if (parent) {
56 var subclass = function() { };
57 subclass.prototype = parent.prototype;
58 klass.prototype = new subclass;
59 parent.subclasses.push(klass);
60 }
61
62 for (var i = 0; i < properties.length; i++)
63 klass.addMethods(properties[i]);
64
65 if (!klass.prototype.initialize)
66 klass.prototype.initialize = Prototype.emptyFunction;
67
68 klass.prototype.constructor = klass;
69
70 return klass;
71 }
72};
73
74Class.Methods = {
75 addMethods: function(source) {
76 var ancestor = this.superclass && this.superclass.prototype;
77 var properties = Object.keys(source);
78
79 if (!Object.keys({ toString: true }).length)
80 properties.push("toString", "valueOf");
81
82 for (var i = 0, length = properties.length; i < length; i++) {
83 var property = properties[i], value = source[property];
84 if (ancestor && Object.isFunction(value) &&
85 value.argumentNames().first() == "$super") {
86 var method = value, value = Object.extend((function(m) {
87 return function() { return ancestor[m].apply(this, arguments) };
88 })(property).wrap(method), {
89 valueOf: function() { return method },
90 toString: function() { return method.toString() }
91 });
92 }
93 this.prototype[property] = value;
94 }
95
96 return this;
97 }
98};
99
100var Abstract = { };
101
102Object.extend = function(destination, source) {
103 for (var property in source)
104 destination[property] = source[property];
105 return destination;
106};
107
108Object.extend(Object, {
109 inspect: function(object) {
110 try {
111 if (Object.isUndefined(object)) return 'undefined';
112 if (object === null) return 'null';
113 return object.inspect ? object.inspect() : String(object);
114 } catch (e) {
115 if (e instanceof RangeError) return '...';
116 throw e;
117 }
118 },
119
120 toJSON: function(object) {
121 var type = typeof object;
122 switch (type) {
123 case 'undefined':
124 case 'function':
125 case 'unknown': return;
126 case 'boolean': return object.toString();
127 }
128
129 if (object === null) return 'null';
130 if (object.toJSON) return object.toJSON();
131 if (Object.isElement(object)) return;
132
133 var results = [];
134 for (var property in object) {
135 var value = Object.toJSON(object[property]);
136 if (!Object.isUndefined(value))
137 results.push(property.toJSON() + ': ' + value);
138 }
139
140 return '{' + results.join(', ') + '}';
141 },
142
143 toQueryString: function(object) {
144 return $H(object).toQueryString();
145 },
146
147 toHTML: function(object) {
148 return object && object.toHTML ? object.toHTML() : String.interpret(object);
149 },
150
151 keys: function(object) {
152 var keys = [];
153 for (var property in object)
154 keys.push(property);
155 return keys;
156 },
157
158 values: function(object) {
159 var values = [];
160 for (var property in object)
161 values.push(object[property]);
162 return values;
163 },
164
165 clone: function(object) {
166 return Object.extend({ }, object);
167 },
168
169 isElement: function(object) {
170 return object && object.nodeType == 1;
171 },
172
173 isArray: function(object) {
174 return object != null && typeof object == "object" &&
175 'splice' in object && 'join' in object;
176 },
177
178 isHash: function(object) {
179 return object instanceof Hash;
180 },
181
182 isFunction: function(object) {
183 return typeof object == "function";
184 },
185
186 isString: function(object) {
187 return typeof object == "string";
188 },
189
190 isNumber: function(object) {
191 return typeof object == "number";
192 },
193
194 isUndefined: function(object) {
195 return typeof object == "undefined";
196 }
197});
198
199Object.extend(Function.prototype, {
200 argumentNames: function() {
201 var names = this.toString().match(/^[\s\(]*function[^(]*\((.*?)\)/)[1].split(",").invoke("strip");
202 return names.length == 1 && !names[0] ? [] : names;
203 },
204
205 bind: function() {
206 if (arguments.length < 2 && Object.isUndefined(arguments[0])) return this;
207 var __method = this, args = $A(arguments), object = args.shift();
208 return function() {
209 return __method.apply(object, args.concat($A(arguments)));
210 }
211 },
212
213 bindAsEventListener: function() {
214 var __method = this, args = $A(arguments), object = args.shift();
215 return function(event) {
216 return __method.apply(object, [event || window.event].concat(args));
217 }
218 },
219
220 curry: function() {
221 if (!arguments.length) return this;
222 var __method = this, args = $A(arguments);
223 return function() {
224 return __method.apply(this, args.concat($A(arguments)));
225 }
226 },
227
228 delay: function() {
229 var __method = this, args = $A(arguments), timeout = args.shift() * 1000;
230 return window.setTimeout(function() {
231 return __method.apply(__method, args);
232 }, timeout);
233 },
234
235 wrap: function(wrapper) {
236 var __method = this;
237 return function() {
238 return wrapper.apply(this, [__method.bind(this)].concat($A(arguments)));
239 }
240 },
241
242 methodize: function() {
243 if (this._methodized) return this._methodized;
244 var __method = this;
245 return this._methodized = function() {
246 return __method.apply(null, [this].concat($A(arguments)));
247 };
248 }
249});
250
251Function.prototype.defer = Function.prototype.delay.curry(0.01);
252
253Date.prototype.toJSON = function() {
254 return '"' + this.getUTCFullYear() + '-' +
255 (this.getUTCMonth() + 1).toPaddedString(2) + '-' +
256 this.getUTCDate().toPaddedString(2) + 'T' +
257 this.getUTCHours().toPaddedString(2) + ':' +
258 this.getUTCMinutes().toPaddedString(2) + ':' +
259 this.getUTCSeconds().toPaddedString(2) + 'Z"';
260};
261
262var Try = {
263 these: function() {
264 var returnValue;
265
266 for (var i = 0, length = arguments.length; i < length; i++) {
267 var lambda = arguments[i];
268 try {
269 returnValue = lambda();
270 break;
271 } catch (e) { }
272 }
273
274 return returnValue;
275 }
276};
277
278RegExp.prototype.match = RegExp.prototype.test;
279
280RegExp.escape = function(str) {
281 return String(str).replace(/([.*+?^=!:${}()|[\]\/\\])/g, '\\$1');
282};
283
284/*--------------------------------------------------------------------------*/
285
286var PeriodicalExecuter = Class.create({
287 initialize: function(callback, frequency) {
288 this.callback = callback;
289 this.frequency = frequency;
290 this.currentlyExecuting = false;
291
292 this.registerCallback();
293 },
294
295 registerCallback: function() {
296 this.timer = setInterval(this.onTimerEvent.bind(this), this.frequency * 1000);
297 },
298
299 execute: function() {
300 this.callback(this);
301 },
302
303 stop: function() {
304 if (!this.timer) return;
305 clearInterval(this.timer);
306 this.timer = null;
307 },
308
309 onTimerEvent: function() {
310 if (!this.currentlyExecuting) {
311 try {
312 this.currentlyExecuting = true;
313 this.execute();
314 } finally {
315 this.currentlyExecuting = false;
316 }
317 }
318 }
319});
320Object.extend(String, {
321 interpret: function(value) {
322 return value == null ? '' : String(value);
323 },
324 specialChar: {
325 '\b': '\\b',
326 '\t': '\\t',
327 '\n': '\\n',
328 '\f': '\\f',
329 '\r': '\\r',
330 '\\': '\\\\'
331 }
332});
333
334Object.extend(String.prototype, {
335 gsub: function(pattern, replacement) {
336 var result = '', source = this, match;
337 replacement = arguments.callee.prepareReplacement(replacement);
338
339 while (source.length > 0) {
340 if (match = source.match(pattern)) {
341 result += source.slice(0, match.index);
342 result += String.interpret(replacement(match));
343 source = source.slice(match.index + match[0].length);
344 } else {
345 result += source, source = '';
346 }
347 }
348 return result;
349 },
350
351 sub: function(pattern, replacement, count) {
352 replacement = this.gsub.prepareReplacement(replacement);
353 count = Object.isUndefined(count) ? 1 : count;
354
355 return this.gsub(pattern, function(match) {
356 if (--count < 0) return match[0];
357 return replacement(match);
358 });
359 },
360
361 scan: function(pattern, iterator) {
362 this.gsub(pattern, iterator);
363 return String(this);
364 },
365
366 truncate: function(length, truncation) {
367 length = length || 30;
368 truncation = Object.isUndefined(truncation) ? '...' : truncation;
369 return this.length > length ?
370 this.slice(0, length - truncation.length) + truncation : String(this);
371 },
372
373 strip: function() {
374 return this.replace(/^\s+/, '').replace(/\s+$/, '');
375 },
376
377 stripTags: function() {
378 return this.replace(/<\/?[^>]+>/gi, '');
379 },
380
381 stripScripts: function() {
382 return this.replace(new RegExp(Prototype.ScriptFragment, 'img'), '');
383 },
384
385 extractScripts: function() {
386 var matchAll = new RegExp(Prototype.ScriptFragment, 'img');
387 var matchOne = new RegExp(Prototype.ScriptFragment, 'im');
388 return (this.match(matchAll) || []).map(function(scriptTag) {
389 return (scriptTag.match(matchOne) || ['', ''])[1];
390 });
391 },
392
393 evalScripts: function() {
394 return this.extractScripts().map(function(script) { return eval(script) });
395 },
396
397 escapeHTML: function() {
398 var self = arguments.callee;
399 self.text.data = this;
400 return self.div.innerHTML;
401 },
402
403 unescapeHTML: function() {
404 var div = new Element('div');
405 div.innerHTML = this.stripTags();
406 return div.childNodes[0] ? (div.childNodes.length > 1 ?
407 $A(div.childNodes).inject('', function(memo, node) { return memo+node.nodeValue }) :
408 div.childNodes[0].nodeValue) : '';
409 },
410
411 toQueryParams: function(separator) {
412 var match = this.strip().match(/([^?#]*)(#.*)?$/);
413 if (!match) return { };
414
415 return match[1].split(separator || '&').inject({ }, function(hash, pair) {
416 if ((pair = pair.split('='))[0]) {
417 var key = decodeURIComponent(pair.shift());
418 var value = pair.length > 1 ? pair.join('=') : pair[0];
419 if (value != undefined) value = decodeURIComponent(value);
420
421 if (key in hash) {
422 if (!Object.isArray(hash[key])) hash[key] = [hash[key]];
423 hash[key].push(value);
424 }
425 else hash[key] = value;
426 }
427 return hash;
428 });
429 },
430
431 toArray: function() {
432 return this.split('');
433 },
434
435 succ: function() {
436 return this.slice(0, this.length - 1) +
437 String.fromCharCode(this.charCodeAt(this.length - 1) + 1);
438 },
439
440 times: function(count) {
441 return count < 1 ? '' : new Array(count + 1).join(this);
442 },
443
444 camelize: function() {
445 var parts = this.split('-'), len = parts.length;
446 if (len == 1) return parts[0];
447
448 var camelized = this.charAt(0) == '-'
449 ? parts[0].charAt(0).toUpperCase() + parts[0].substring(1)
450 : parts[0];
451
452 for (var i = 1; i < len; i++)
453 camelized += parts[i].charAt(0).toUpperCase() + parts[i].substring(1);
454
455 return camelized;
456 },
457
458 capitalize: function() {
459 return this.charAt(0).toUpperCase() + this.substring(1).toLowerCase();
460 },
461
462 underscore: function() {
463 return this.gsub(/::/, '/').gsub(/([A-Z]+)([A-Z][a-z])/,'#{1}_#{2}').gsub(/([a-z\d])([A-Z])/,'#{1}_#{2}').gsub(/-/,'_').toLowerCase();
464 },
465
466 dasherize: function() {
467 return this.gsub(/_/,'-');
468 },
469
470 inspect: function(useDoubleQuotes) {
471 var escapedString = this.gsub(/[\x00-\x1f\\]/, function(match) {
472 var character = String.specialChar[match[0]];
473 return character ? character : '\\u00' + match[0].charCodeAt().toPaddedString(2, 16);
474 });
475 if (useDoubleQuotes) return '"' + escapedString.replace(/"/g, '\\"') + '"';
476 return "'" + escapedString.replace(/'/g, '\\\'') + "'";
477 },
478
479 toJSON: function() {
480 return this.inspect(true);
481 },
482
483 unfilterJSON: function(filter) {
484 return this.sub(filter || Prototype.JSONFilter, '#{1}');
485 },
486
487 isJSON: function() {
488 var str = this;
489 if (str.blank()) return false;
490 str = this.replace(/\\./g, '@').replace(/"[^"\\\n\r]*"/g, '');
491 return (/^[,:{}\[\]0-9.\-+Eaeflnr-u \n\r\t]*$/).test(str);
492 },
493
494 evalJSON: function(sanitize) {
495 var json = this.unfilterJSON();
496 try {
497 if (!sanitize || json.isJSON()) return eval('(' + json + ')');
498 } catch (e) { }
499 throw new SyntaxError('Badly formed JSON string: ' + this.inspect());
500 },
501
502 include: function(pattern) {
503 return this.indexOf(pattern) > -1;
504 },
505
506 startsWith: function(pattern) {
507 return this.indexOf(pattern) === 0;
508 },
509
510 endsWith: function(pattern) {
511 var d = this.length - pattern.length;
512 return d >= 0 && this.lastIndexOf(pattern) === d;
513 },
514
515 empty: function() {
516 return this == '';
517 },
518
519 blank: function() {
520 return /^\s*$/.test(this);
521 },
522
523 interpolate: function(object, pattern) {
524 return new Template(this, pattern).evaluate(object);
525 }
526});
527
528if (Prototype.Browser.WebKit || Prototype.Browser.IE) Object.extend(String.prototype, {
529 escapeHTML: function() {
530 return this.replace(/&/g,'&amp;').replace(/</g,'&lt;').replace(/>/g,'&gt;');
531 },
532 unescapeHTML: function() {
533 return this.replace(/&amp;/g,'&').replace(/&lt;/g,'<').replace(/&gt;/g,'>');
534 }
535});
536
537String.prototype.gsub.prepareReplacement = function(replacement) {
538 if (Object.isFunction(replacement)) return replacement;
539 var template = new Template(replacement);
540 return function(match) { return template.evaluate(match) };
541};
542
543String.prototype.parseQuery = String.prototype.toQueryParams;
544
545Object.extend(String.prototype.escapeHTML, {
546 div: document.createElement('div'),
547 text: document.createTextNode('')
548});
549
550with (String.prototype.escapeHTML) div.appendChild(text);
551
552var Template = Class.create({
553 initialize: function(template, pattern) {
554 this.template = template.toString();
555 this.pattern = pattern || Template.Pattern;
556 },
557
558 evaluate: function(object) {
559 if (Object.isFunction(object.toTemplateReplacements))
560 object = object.toTemplateReplacements();
561
562 return this.template.gsub(this.pattern, function(match) {
563 if (object == null) return '';
564
565 var before = match[1] || '';
566 if (before == '\\') return match[2];
567
568 var ctx = object, expr = match[3];
569 var pattern = /^([^.[]+|\[((?:.*?[^\\])?)\])(\.|\[|$)/;
570 match = pattern.exec(expr);
571 if (match == null) return before;
572
573 while (match != null) {
574 var comp = match[1].startsWith('[') ? match[2].gsub('\\\\]', ']') : match[1];
575 ctx = ctx[comp];
576 if (null == ctx || '' == match[3]) break;
577 expr = expr.substring('[' == match[3] ? match[1].length : match[0].length);
578 match = pattern.exec(expr);
579 }
580
581 return before + String.interpret(ctx);
582 });
583 }
584});
585Template.Pattern = /(^|.|\r|\n)(#\{(.*?)\})/;
586
587var $break = { };
588
589var Enumerable = {
590 each: function(iterator, context) {
591 var index = 0;
592 iterator = iterator.bind(context);
593 try {
594 this._each(function(value) {
595 iterator(value, index++);
596 });
597 } catch (e) {
598 if (e != $break) throw e;
599 }
600 return this;
601 },
602
603 eachSlice: function(number, iterator, context) {
604 iterator = iterator ? iterator.bind(context) : Prototype.K;
605 var index = -number, slices = [], array = this.toArray();
606 while ((index += number) < array.length)
607 slices.push(array.slice(index, index+number));
608 return slices.collect(iterator, context);
609 },
610
611 all: function(iterator, context) {
612 iterator = iterator ? iterator.bind(context) : Prototype.K;
613 var result = true;
614 this.each(function(value, index) {
615 result = result && !!iterator(value, index);
616 if (!result) throw $break;
617 });
618 return result;
619 },
620
621 any: function(iterator, context) {
622 iterator = iterator ? iterator.bind(context) : Prototype.K;
623 var result = false;
624 this.each(function(value, index) {
625 if (result = !!iterator(value, index))
626 throw $break;
627 });
628 return result;
629 },
630
631 collect: function(iterator, context) {
632 iterator = iterator ? iterator.bind(context) : Prototype.K;
633 var results = [];
634 this.each(function(value, index) {
635 results.push(iterator(value, index));
636 });
637 return results;
638 },
639
640 detect: function(iterator, context) {
641 iterator = iterator.bind(context);
642 var result;
643 this.each(function(value, index) {
644 if (iterator(value, index)) {
645 result = value;
646 throw $break;
647 }
648 });
649 return result;
650 },
651
652 findAll: function(iterator, context) {
653 iterator = iterator.bind(context);
654 var results = [];
655 this.each(function(value, index) {
656 if (iterator(value, index))
657 results.push(value);
658 });
659 return results;
660 },
661
662 grep: function(filter, iterator, context) {
663 iterator = iterator ? iterator.bind(context) : Prototype.K;
664 var results = [];
665
666 if (Object.isString(filter))
667 filter = new RegExp(filter);
668
669 this.each(function(value, index) {
670 if (filter.match(value))
671 results.push(iterator(value, index));
672 });
673 return results;
674 },
675
676 include: function(object) {
677 if (Object.isFunction(this.indexOf))
678 if (this.indexOf(object) != -1) return true;
679
680 var found = false;
681 this.each(function(value) {
682 if (value == object) {
683 found = true;
684 throw $break;
685 }
686 });
687 return found;
688 },
689
690 inGroupsOf: function(number, fillWith) {
691 fillWith = Object.isUndefined(fillWith) ? null : fillWith;
692 return this.eachSlice(number, function(slice) {
693 while(slice.length < number) slice.push(fillWith);
694 return slice;
695 });
696 },
697
698 inject: function(memo, iterator, context) {
699 iterator = iterator.bind(context);
700 this.each(function(value, index) {
701 memo = iterator(memo, value, index);
702 });
703 return memo;
704 },
705
706 invoke: function(method) {
707 var args = $A(arguments).slice(1);
708 return this.map(function(value) {
709 return value[method].apply(value, args);
710 });
711 },
712
713 max: function(iterator, context) {
714 iterator = iterator ? iterator.bind(context) : Prototype.K;
715 var result;
716 this.each(function(value, index) {
717 value = iterator(value, index);
718 if (result == null || value >= result)
719 result = value;
720 });
721 return result;
722 },
723
724 min: function(iterator, context) {
725 iterator = iterator ? iterator.bind(context) : Prototype.K;
726 var result;
727 this.each(function(value, index) {
728 value = iterator(value, index);
729 if (result == null || value < result)
730 result = value;
731 });
732 return result;
733 },
734
735 partition: function(iterator, context) {
736 iterator = iterator ? iterator.bind(context) : Prototype.K;
737 var trues = [], falses = [];
738 this.each(function(value, index) {
739 (iterator(value, index) ?
740 trues : falses).push(value);
741 });
742 return [trues, falses];
743 },
744
745 pluck: function(property) {
746 var results = [];
747 this.each(function(value) {
748 results.push(value[property]);
749 });
750 return results;
751 },
752
753 reject: function(iterator, context) {
754 iterator = iterator.bind(context);
755 var results = [];
756 this.each(function(value, index) {
757 if (!iterator(value, index))
758 results.push(value);
759 });
760 return results;
761 },
762
763 sortBy: function(iterator, context) {
764 iterator = iterator.bind(context);
765 return this.map(function(value, index) {
766 return {value: value, criteria: iterator(value, index)};
767 }).sort(function(left, right) {
768 var a = left.criteria, b = right.criteria;
769 return a < b ? -1 : a > b ? 1 : 0;
770 }).pluck('value');
771 },
772
773 toArray: function() {
774 return this.map();
775 },
776
777 zip: function() {
778 var iterator = Prototype.K, args = $A(arguments);
779 if (Object.isFunction(args.last()))
780 iterator = args.pop();
781
782 var collections = [this].concat(args).map($A);
783 return this.map(function(value, index) {
784 return iterator(collections.pluck(index));
785 });
786 },
787
788 size: function() {
789 return this.toArray().length;
790 },
791
792 inspect: function() {
793 return '#<Enumerable:' + this.toArray().inspect() + '>';
794 }
795};
796
797Object.extend(Enumerable, {
798 map: Enumerable.collect,
799 find: Enumerable.detect,
800 select: Enumerable.findAll,
801 filter: Enumerable.findAll,
802 member: Enumerable.include,
803 entries: Enumerable.toArray,
804 every: Enumerable.all,
805 some: Enumerable.any
806});
807function $A(iterable) {
808 if (!iterable) return [];
809 if (iterable.toArray) return iterable.toArray();
810 var length = iterable.length || 0, results = new Array(length);
811 while (length--) results[length] = iterable[length];
812 return results;
813}
814
815if (Prototype.Browser.WebKit) {
816 $A = function(iterable) {
817 if (!iterable) return [];
818 if (!(Object.isFunction(iterable) && iterable == '[object NodeList]') &&
819 iterable.toArray) return iterable.toArray();
820 var length = iterable.length || 0, results = new Array(length);
821 while (length--) results[length] = iterable[length];
822 return results;
823 };
824}
825
826Array.from = $A;
827
828Object.extend(Array.prototype, Enumerable);
829
830if (!Array.prototype._reverse) Array.prototype._reverse = Array.prototype.reverse;
831
832Object.extend(Array.prototype, {
833 _each: function(iterator) {
834 for (var i = 0, length = this.length; i < length; i++)
835 iterator(this[i]);
836 },
837
838 clear: function() {
839 this.length = 0;
840 return this;
841 },
842
843 first: function() {
844 return this[0];
845 },
846
847 last: function() {
848 return this[this.length - 1];
849 },
850
851 compact: function() {
852 return this.select(function(value) {
853 return value != null;
854 });
855 },
856
857 flatten: function() {
858 return this.inject([], function(array, value) {
859 return array.concat(Object.isArray(value) ?
860 value.flatten() : [value]);
861 });
862 },
863
864 without: function() {
865 var values = $A(arguments);
866 return this.select(function(value) {
867 return !values.include(value);
868 });
869 },
870
871 reverse: function(inline) {
872 return (inline !== false ? this : this.toArray())._reverse();
873 },
874
875 reduce: function() {
876 return this.length > 1 ? this : this[0];
877 },
878
879 uniq: function(sorted) {
880 return this.inject([], function(array, value, index) {
881 if (0 == index || (sorted ? array.last() != value : !array.include(value)))
882 array.push(value);
883 return array;
884 });
885 },
886
887 intersect: function(array) {
888 return this.uniq().findAll(function(item) {
889 return array.detect(function(value) { return item === value });
890 });
891 },
892
893 clone: function() {
894 return [].concat(this);
895 },
896
897 size: function() {
898 return this.length;
899 },
900
901 inspect: function() {
902 return '[' + this.map(Object.inspect).join(', ') + ']';
903 },
904
905 toJSON: function() {
906 var results = [];
907 this.each(function(object) {
908 var value = Object.toJSON(object);
909 if (!Object.isUndefined(value)) results.push(value);
910 });
911 return '[' + results.join(', ') + ']';
912 }
913});
914
915// use native browser JS 1.6 implementation if available
916if (Object.isFunction(Array.prototype.forEach))
917 Array.prototype._each = Array.prototype.forEach;
918
919if (!Array.prototype.indexOf) Array.prototype.indexOf = function(item, i) {
920 i || (i = 0);
921 var length = this.length;
922 if (i < 0) i = length + i;
923 for (; i < length; i++)
924 if (this[i] === item) return i;
925 return -1;
926};
927
928if (!Array.prototype.lastIndexOf) Array.prototype.lastIndexOf = function(item, i) {
929 i = isNaN(i) ? this.length : (i < 0 ? this.length + i : i) + 1;
930 var n = this.slice(0, i).reverse().indexOf(item);
931 return (n < 0) ? n : i - n - 1;
932};
933
934Array.prototype.toArray = Array.prototype.clone;
935
936function $w(string) {
937 if (!Object.isString(string)) return [];
938 string = string.strip();
939 return string ? string.split(/\s+/) : [];
940}
941
942if (Prototype.Browser.Opera){
943 Array.prototype.concat = function() {
944 var array = [];
945 for (var i = 0, length = this.length; i < length; i++) array.push(this[i]);
946 for (var i = 0, length = arguments.length; i < length; i++) {
947 if (Object.isArray(arguments[i])) {
948 for (var j = 0, arrayLength = arguments[i].length; j < arrayLength; j++)
949 array.push(arguments[i][j]);
950 } else {
951 array.push(arguments[i]);
952 }
953 }
954 return array;
955 };
956}
957Object.extend(Number.prototype, {
958 toColorPart: function() {
959 return this.toPaddedString(2, 16);
960 },
961
962 succ: function() {
963 return this + 1;
964 },
965
966 times: function(iterator) {
967 $R(0, this, true).each(iterator);
968 return this;
969 },
970
971 toPaddedString: function(length, radix) {
972 var string = this.toString(radix || 10);
973 return '0'.times(length - string.length) + string;
974 },
975
976 toJSON: function() {
977 return isFinite(this) ? this.toString() : 'null';
978 }
979});
980
981$w('abs round ceil floor').each(function(method){
982 Number.prototype[method] = Math[method].methodize();
983});
984function $H(object) {
985 return new Hash(object);
986};
987
988var Hash = Class.create(Enumerable, (function() {
989
990 function toQueryPair(key, value) {
991 if (Object.isUndefined(value)) return key;
992 return key + '=' + encodeURIComponent(String.interpret(value));
993 }
994
995 return {
996 initialize: function(object) {
997 this._object = Object.isHash(object) ? object.toObject() : Object.clone(object);
998 },
999
1000 _each: function(iterator) {
1001 for (var key in this._object) {
1002 var value = this._object[key], pair = [key, value];
1003 pair.key = key;
1004 pair.value = value;
1005 iterator(pair);
1006 }
1007 },
1008
1009 set: function(key, value) {
1010 return this._object[key] = value;
1011 },
1012
1013 get: function(key) {
1014 return this._object[key];
1015 },
1016
1017 unset: function(key) {
1018 var value = this._object[key];
1019 delete this._object[key];
1020 return value;
1021 },
1022
1023 toObject: function() {
1024 return Object.clone(this._object);
1025 },
1026
1027 keys: function() {
1028 return this.pluck('key');
1029 },
1030
1031 values: function() {
1032 return this.pluck('value');
1033 },
1034
1035 index: function(value) {
1036 var match = this.detect(function(pair) {
1037 return pair.value === value;
1038 });
1039 return match && match.key;
1040 },
1041
1042 merge: function(object) {
1043 return this.clone().update(object);
1044 },
1045
1046 update: function(object) {
1047 return new Hash(object).inject(this, function(result, pair) {
1048 result.set(pair.key, pair.value);
1049 return result;
1050 });
1051 },
1052
1053 toQueryString: function() {
1054 return this.map(function(pair) {
1055 var key = encodeURIComponent(pair.key), values = pair.value;
1056
1057 if (values && typeof values == 'object') {
1058 if (Object.isArray(values))
1059 return values.map(toQueryPair.curry(key)).join('&');
1060 }
1061 return toQueryPair(key, values);
1062 }).join('&');
1063 },
1064
1065 inspect: function() {
1066 return '#<Hash:{' + this.map(function(pair) {
1067 return pair.map(Object.inspect).join(': ');
1068 }).join(', ') + '}>';
1069 },
1070
1071 toJSON: function() {
1072 return Object.toJSON(this.toObject());
1073 },
1074
1075 clone: function() {
1076 return new Hash(this);
1077 }
1078 }
1079})());
1080
1081Hash.prototype.toTemplateReplacements = Hash.prototype.toObject;
1082Hash.from = $H;
1083var ObjectRange = Class.create(Enumerable, {
1084 initialize: function(start, end, exclusive) {
1085 this.start = start;
1086 this.end = end;
1087 this.exclusive = exclusive;
1088 },
1089
1090 _each: function(iterator) {
1091 var value = this.start;
1092 while (this.include(value)) {
1093 iterator(value);
1094 value = value.succ();
1095 }
1096 },
1097
1098 include: function(value) {
1099 if (value < this.start)
1100 return false;
1101 if (this.exclusive)
1102 return value < this.end;
1103 return value <= this.end;
1104 }
1105});
1106
1107var $R = function(start, end, exclusive) {
1108 return new ObjectRange(start, end, exclusive);
1109};
1110
1111var Ajax = {
1112 getTransport: function() {
1113 return Try.these(
1114 function() {return new XMLHttpRequest()},
1115 function() {return new ActiveXObject('Msxml2.XMLHTTP')},
1116 function() {return new ActiveXObject('Microsoft.XMLHTTP')}
1117 ) || false;
1118 },
1119
1120 activeRequestCount: 0
1121};
1122
1123Ajax.Responders = {
1124 responders: [],
1125
1126 _each: function(iterator) {
1127 this.responders._each(iterator);
1128 },
1129
1130 register: function(responder) {
1131 if (!this.include(responder))
1132 this.responders.push(responder);
1133 },
1134
1135 unregister: function(responder) {
1136 this.responders = this.responders.without(responder);
1137 },
1138
1139 dispatch: function(callback, request, transport, json) {
1140 this.each(function(responder) {
1141 if (Object.isFunction(responder[callback])) {
1142 try {
1143 responder[callback].apply(responder, [request, transport, json]);
1144 } catch (e) { }
1145 }
1146 });
1147 }
1148};
1149
1150Object.extend(Ajax.Responders, Enumerable);
1151
1152Ajax.Responders.register({
1153 onCreate: function() { Ajax.activeRequestCount++ },
1154 onComplete: function() { Ajax.activeRequestCount-- }
1155});
1156
1157Ajax.Base = Class.create({
1158 initialize: function(options) {
1159 this.options = {
1160 method: 'post',
1161 asynchronous: true,
1162 contentType: 'application/x-www-form-urlencoded',
1163 encoding: 'UTF-8',
1164 parameters: '',
1165 evalJSON: true,
1166 evalJS: true
1167 };
1168 Object.extend(this.options, options || { });
1169
1170 this.options.method = this.options.method.toLowerCase();
1171
1172 if (Object.isString(this.options.parameters))
1173 this.options.parameters = this.options.parameters.toQueryParams();
1174 else if (Object.isHash(this.options.parameters))
1175 this.options.parameters = this.options.parameters.toObject();
1176 }
1177});
1178
1179Ajax.Request = Class.create(Ajax.Base, {
1180 _complete: false,
1181
1182 initialize: function($super, url, options) {
1183 $super(options);
1184 this.transport = Ajax.getTransport();
1185 this.request(url);
1186 },
1187
1188 request: function(url) {
1189 this.url = url;
1190 this.method = this.options.method;
1191 var params = Object.clone(this.options.parameters);
1192
1193 if (!['get', 'post'].include(this.method)) {
1194 // simulate other verbs over post
1195 params['_method'] = this.method;
1196 this.method = 'post';
1197 }
1198
1199 this.parameters = params;
1200
1201 if (params = Object.toQueryString(params)) {
1202 // when GET, append parameters to URL
1203 if (this.method == 'get')
1204 this.url += (this.url.include('?') ? '&' : '?') + params;
1205 else if (/Konqueror|Safari|KHTML/.test(navigator.userAgent))
1206 params += '&_=';
1207 }
1208
1209 try {
1210 var response = new Ajax.Response(this);
1211 if (this.options.onCreate) this.options.onCreate(response);
1212 Ajax.Responders.dispatch('onCreate', this, response);
1213
1214 this.transport.open(this.method.toUpperCase(), this.url,
1215 this.options.asynchronous);
1216
1217 if (this.options.asynchronous) this.respondToReadyState.bind(this).defer(1);
1218
1219 this.transport.onreadystatechange = this.onStateChange.bind(this);
1220 this.setRequestHeaders();
1221
1222 this.body = this.method == 'post' ? (this.options.postBody || params) : null;
1223 this.transport.overrideMimeType('text/plain; charset=x-user-defined');
1224 this.transport.send(this.body);
1225
1226 /* Force Firefox to handle ready state 4 for synchronous requests */
1227 if (!this.options.asynchronous && this.transport.overrideMimeType)
1228 this.onStateChange();
1229
1230 }
1231 catch (e) {
1232 this.dispatchException(e);
1233 }
1234 },
1235
1236 onStateChange: function() {
1237 var readyState = this.transport.readyState;
1238 if (readyState > 1 && !((readyState == 4) && this._complete))
1239 this.respondToReadyState(this.transport.readyState);
1240 },
1241
1242 setRequestHeaders: function() {
1243 var headers = {
1244 'X-Requested-With': 'XMLHttpRequest',
1245 'X-Prototype-Version': Prototype.Version,
1246 'Accept': 'text/javascript, text/html, application/xml, text/xml, */*'
1247 };
1248
1249 if (this.method == 'post') {
1250 headers['Content-type'] = this.options.contentType +
1251 (this.options.encoding ? '; charset=' + this.options.encoding : '');
1252
1253 /* Force "Connection: close" for older Mozilla browsers to work
1254 * around a bug where XMLHttpRequest sends an incorrect
1255 * Content-length header. See Mozilla Bugzilla #246651.
1256 */
1257 if (this.transport.overrideMimeType &&
1258 (navigator.userAgent.match(/Gecko\/(\d{4})/) || [0,2005])[1] < 2005)
1259 headers['Connection'] = 'close';
1260 }
1261
1262 // user-defined headers
1263 if (typeof this.options.requestHeaders == 'object') {
1264 var extras = this.options.requestHeaders;
1265
1266 if (Object.isFunction(extras.push))
1267 for (var i = 0, length = extras.length; i < length; i += 2)
1268 headers[extras[i]] = extras[i+1];
1269 else
1270 $H(extras).each(function(pair) { headers[pair.key] = pair.value });
1271 }
1272
1273 for (var name in headers)
1274 this.transport.setRequestHeader(name, headers[name]);
1275 },
1276
1277 success: function() {
1278 var status = this.getStatus();
1279 return !status || (status >= 200 && status < 300);
1280 },
1281
1282 getStatus: function() {
1283 try {
1284 return this.transport.status || 0;
1285 } catch (e) { return 0 }
1286 },
1287
1288 respondToReadyState: function(readyState) {
1289 var state = Ajax.Request.Events[readyState], response = new Ajax.Response(this);
1290
1291 if (state == 'Complete') {
1292 try {
1293 this._complete = true;
1294 (this.options['on' + response.status]
1295 || this.options['on' + (this.success() ? 'Success' : 'Failure')]
1296 || Prototype.emptyFunction)(response, response.headerJSON);
1297 } catch (e) {
1298 this.dispatchException(e);
1299 }
1300
1301 var contentType = response.getHeader('Content-type');
1302 if (this.options.evalJS == 'force'
1303 || (this.options.evalJS && this.isSameOrigin() && contentType
1304 && contentType.match(/^\s*(text|application)\/(x-)?(java|ecma)script(;.*)?\s*$/i)))
1305 this.evalResponse();
1306 }
1307
1308 try {
1309 (this.options['on' + state] || Prototype.emptyFunction)(response, response.headerJSON);
1310 Ajax.Responders.dispatch('on' + state, this, response, response.headerJSON);
1311 } catch (e) {
1312 this.dispatchException(e);
1313 }
1314
1315 if (state == 'Complete') {
1316 // avoid memory leak in MSIE: clean up
1317 this.transport.onreadystatechange = Prototype.emptyFunction;
1318 }
1319 },
1320
1321 isSameOrigin: function() {
1322 var m = this.url.match(/^\s*https?:\/\/[^\/]*/);
1323 return !m || (m[0] == '#{protocol}//#{domain}#{port}'.interpolate({
1324 protocol: location.protocol,
1325 domain: document.domain,
1326 port: location.port ? ':' + location.port : ''
1327 }));
1328 },
1329
1330 getHeader: function(name) {
1331 try {
1332 return this.transport.getResponseHeader(name) || null;
1333 } catch (e) { return null }
1334 },
1335
1336 evalResponse: function() {
1337 try {
1338 return eval((this.transport.responseText || '').unfilterJSON());
1339 } catch (e) {
1340 this.dispatchException(e);
1341 }
1342 },
1343
1344 dispatchException: function(exception) {
1345 (this.options.onException || Prototype.emptyFunction)(this, exception);
1346 Ajax.Responders.dispatch('onException', this, exception);
1347 }
1348});
1349
1350Ajax.Request.Events =
1351 ['Uninitialized', 'Loading', 'Loaded', 'Interactive', 'Complete'];
1352
1353Ajax.Response = Class.create({
1354 initialize: function(request){
1355 this.request = request;
1356 var transport = this.transport = request.transport,
1357 readyState = this.readyState = transport.readyState;
1358
1359 if((readyState > 2 && !Prototype.Browser.IE) || readyState == 4) {
1360 this.status = this.getStatus();
1361 this.statusText = this.getStatusText();
1362 this.responseText = String.interpret(transport.responseText);
1363 this.headerJSON = this._getHeaderJSON();
1364 }
1365
1366 if(readyState == 4) {
1367 var xml = transport.responseXML;
1368 this.responseXML = Object.isUndefined(xml) ? null : xml;
1369 this.responseJSON = this._getResponseJSON();
1370 }
1371 },
1372
1373 status: 0,
1374 statusText: '',
1375
1376 getStatus: Ajax.Request.prototype.getStatus,
1377
1378 getStatusText: function() {
1379 try {
1380 return this.transport.statusText || '';
1381 } catch (e) { return '' }
1382 },
1383
1384 getHeader: Ajax.Request.prototype.getHeader,
1385
1386 getAllHeaders: function() {
1387 try {
1388 return this.getAllResponseHeaders();
1389 } catch (e) { return null }
1390 },
1391
1392 getResponseHeader: function(name) {
1393 return this.transport.getResponseHeader(name);
1394 },
1395
1396 getAllResponseHeaders: function() {
1397 return this.transport.getAllResponseHeaders();
1398 },
1399
1400 _getHeaderJSON: function() {
1401 var json = this.getHeader('X-JSON');
1402 if (!json) return null;
1403 json = decodeURIComponent(escape(json));
1404 try {
1405 return json.evalJSON(this.request.options.sanitizeJSON ||
1406 !this.request.isSameOrigin());
1407 } catch (e) {
1408 this.request.dispatchException(e);
1409 }
1410 },
1411
1412 _getResponseJSON: function() {
1413 var options = this.request.options;
1414 if (!options.evalJSON || (options.evalJSON != 'force' &&
1415 !(this.getHeader('Content-type') || '').include('application/json')) ||
1416 this.responseText.blank())
1417 return null;
1418 try {
1419 return this.responseText.evalJSON(options.sanitizeJSON ||
1420 !this.request.isSameOrigin());
1421 } catch (e) {
1422 this.request.dispatchException(e);
1423 }
1424 }
1425});
1426
1427Ajax.Updater = Class.create(Ajax.Request, {
1428 initialize: function($super, container, url, options) {
1429 this.container = {
1430 success: (container.success || container),
1431 failure: (container.failure || (container.success ? null : container))
1432 };
1433
1434 options = Object.clone(options);
1435 var onComplete = options.onComplete;
1436 options.onComplete = (function(response, json) {
1437 this.updateContent(response.responseText);
1438 if (Object.isFunction(onComplete)) onComplete(response, json);
1439 }).bind(this);
1440
1441 $super(url, options);
1442 },
1443
1444 updateContent: function(responseText) {
1445 var receiver = this.container[this.success() ? 'success' : 'failure'],
1446 options = this.options;
1447
1448 if (!options.evalScripts) responseText = responseText.stripScripts();
1449
1450 if (receiver = $(receiver)) {
1451 if (options.insertion) {
1452 if (Object.isString(options.insertion)) {
1453 var insertion = { }; insertion[options.insertion] = responseText;
1454 receiver.insert(insertion);
1455 }
1456 else options.insertion(receiver, responseText);
1457 }
1458 else receiver.update(responseText);
1459 }
1460 }
1461});
1462
1463Ajax.PeriodicalUpdater = Class.create(Ajax.Base, {
1464 initialize: function($super, container, url, options) {
1465 $super(options);
1466 this.onComplete = this.options.onComplete;
1467
1468 this.frequency = (this.options.frequency || 2);
1469 this.decay = (this.options.decay || 1);
1470
1471 this.updater = { };
1472 this.container = container;
1473 this.url = url;
1474
1475 this.start();
1476 },
1477
1478 start: function() {
1479 this.options.onComplete = this.updateComplete.bind(this);
1480 this.onTimerEvent();
1481 },
1482
1483 stop: function() {
1484 this.updater.options.onComplete = undefined;
1485 clearTimeout(this.timer);
1486 (this.onComplete || Prototype.emptyFunction).apply(this, arguments);
1487 },
1488
1489 updateComplete: function(response) {
1490 if (this.options.decay) {
1491 this.decay = (response.responseText == this.lastText ?
1492 this.decay * this.options.decay : 1);
1493
1494 this.lastText = response.responseText;
1495 }
1496 this.timer = this.onTimerEvent.bind(this).delay(this.decay * this.frequency);
1497 },
1498
1499 onTimerEvent: function() {
1500 this.updater = new Ajax.Updater(this.container, this.url, this.options);
1501 }
1502});
1503function $(element) {
1504 if (arguments.length > 1) {
1505 for (var i = 0, elements = [], length = arguments.length; i < length; i++)
1506 elements.push($(arguments[i]));
1507 return elements;
1508 }
1509 if (Object.isString(element))
1510 element = document.getElementById(element);
1511 return Element.extend(element);
1512}
1513
1514if (Prototype.BrowserFeatures.XPath) {
1515 document._getElementsByXPath = function(expression, parentElement) {
1516 var results = [];
1517 var query = document.evaluate(expression, $(parentElement) || document,
1518 null, XPathResult.ORDERED_NODE_SNAPSHOT_TYPE, null);
1519 for (var i = 0, length = query.snapshotLength; i < length; i++)
1520 results.push(Element.extend(query.snapshotItem(i)));
1521 return results;
1522 };
1523}
1524
1525/*--------------------------------------------------------------------------*/
1526
1527if (!window.Node) var Node = { };
1528
1529if (!Node.ELEMENT_NODE) {
1530 // DOM level 2 ECMAScript Language Binding
1531 Object.extend(Node, {
1532 ELEMENT_NODE: 1,
1533 ATTRIBUTE_NODE: 2,
1534 TEXT_NODE: 3,
1535 CDATA_SECTION_NODE: 4,
1536 ENTITY_REFERENCE_NODE: 5,
1537 ENTITY_NODE: 6,
1538 PROCESSING_INSTRUCTION_NODE: 7,
1539 COMMENT_NODE: 8,
1540 DOCUMENT_NODE: 9,
1541 DOCUMENT_TYPE_NODE: 10,
1542 DOCUMENT_FRAGMENT_NODE: 11,
1543 NOTATION_NODE: 12
1544 });
1545}
1546
1547(function() {
1548 var element = this.Element;
1549 this.Element = function(tagName, attributes) {
1550 attributes = attributes || { };
1551 tagName = tagName.toLowerCase();
1552 var cache = Element.cache;
1553 if (Prototype.Browser.IE && attributes.name) {
1554 tagName = '<' + tagName + ' name="' + attributes.name + '">';
1555 delete attributes.name;
1556 return Element.writeAttribute(document.createElement(tagName), attributes);
1557 }
1558 if (!cache[tagName]) cache[tagName] = Element.extend(document.createElement(tagName));
1559 return Element.writeAttribute(cache[tagName].cloneNode(false), attributes);
1560 };
1561 Object.extend(this.Element, element || { });
1562}).call(window);
1563
1564Element.cache = { };
1565
1566Element.Methods = {
1567 visible: function(element) {
1568 return $(element).style.display != 'none';
1569 },
1570
1571 toggle: function(element) {
1572 element = $(element);
1573 Element[Element.visible(element) ? 'hide' : 'show'](element);
1574 return element;
1575 },
1576
1577 hide: function(element) {
1578 $(element).style.display = 'none';
1579 return element;
1580 },
1581
1582 show: function(element) {
1583 $(element).style.display = '';
1584 return element;
1585 },
1586
1587 remove: function(element) {
1588 element = $(element);
1589 element.parentNode.removeChild(element);
1590 return element;
1591 },
1592
1593 update: function(element, content) {
1594 element = $(element);
1595 if (content && content.toElement) content = content.toElement();
1596 if (Object.isElement(content)) return element.update().insert(content);
1597 content = Object.toHTML(content);
1598 element.innerHTML = content.stripScripts();
1599 content.evalScripts.bind(content).defer();
1600 return element;
1601 },
1602
1603 replace: function(element, content) {
1604 element = $(element);
1605 if (content && content.toElement) content = content.toElement();
1606 else if (!Object.isElement(content)) {
1607 content = Object.toHTML(content);
1608 var range = element.ownerDocument.createRange();
1609 range.selectNode(element);
1610 content.evalScripts.bind(content).defer();
1611 content = range.createContextualFragment(content.stripScripts());
1612 }
1613 element.parentNode.replaceChild(content, element);
1614 return element;
1615 },
1616
1617 insert: function(element, insertions) {
1618 element = $(element);
1619
1620 if (Object.isString(insertions) || Object.isNumber(insertions) ||
1621 Object.isElement(insertions) || (insertions && (insertions.toElement || insertions.toHTML)))
1622 insertions = {bottom:insertions};
1623
1624 var content, insert, tagName, childNodes;
1625
1626 for (var position in insertions) {
1627 content = insertions[position];
1628 position = position.toLowerCase();
1629 insert = Element._insertionTranslations[position];
1630
1631 if (content && content.toElement) content = content.toElement();
1632 if (Object.isElement(content)) {
1633 insert(element, content);
1634 continue;
1635 }
1636
1637 content = Object.toHTML(content);
1638
1639 tagName = ((position == 'before' || position == 'after')
1640 ? element.parentNode : element).tagName.toUpperCase();
1641
1642 childNodes = Element._getContentFromAnonymousElement(tagName, content.stripScripts());
1643
1644 if (position == 'top' || position == 'after') childNodes.reverse();
1645 childNodes.each(insert.curry(element));
1646
1647 content.evalScripts.bind(content).defer();
1648 }
1649
1650 return element;
1651 },
1652
1653 wrap: function(element, wrapper, attributes) {
1654 element = $(element);
1655 if (Object.isElement(wrapper))
1656 $(wrapper).writeAttribute(attributes || { });
1657 else if (Object.isString(wrapper)) wrapper = new Element(wrapper, attributes);
1658 else wrapper = new Element('div', wrapper);
1659 if (element.parentNode)
1660 element.parentNode.replaceChild(wrapper, element);
1661 wrapper.appendChild(element);
1662 return wrapper;
1663 },
1664
1665 inspect: function(element) {
1666 element = $(element);
1667 var result = '<' + element.tagName.toLowerCase();
1668 $H({'id': 'id', 'className': 'class'}).each(function(pair) {
1669 var property = pair.first(), attribute = pair.last();
1670 var value = (element[property] || '').toString();
1671 if (value) result += ' ' + attribute + '=' + value.inspect(true);
1672 });
1673 return result + '>';
1674 },
1675
1676 recursivelyCollect: function(element, property) {
1677 element = $(element);
1678 var elements = [];
1679 while (element = element[property])
1680 if (element.nodeType == 1)
1681 elements.push(Element.extend(element));
1682 return elements;
1683 },
1684
1685 ancestors: function(element) {
1686 return $(element).recursivelyCollect('parentNode');
1687 },
1688
1689 descendants: function(element) {
1690 return $(element).select("*");
1691 },
1692
1693 firstDescendant: function(element) {
1694 element = $(element).firstChild;
1695 while (element && element.nodeType != 1) element = element.nextSibling;
1696 return $(element);
1697 },
1698
1699 immediateDescendants: function(element) {
1700 if (!(element = $(element).firstChild)) return [];
1701 while (element && element.nodeType != 1) element = element.nextSibling;
1702 if (element) return [element].concat($(element).nextSiblings());
1703 return [];
1704 },
1705
1706 previousSiblings: function(element) {
1707 return $(element).recursivelyCollect('previousSibling');
1708 },
1709
1710 nextSiblings: function(element) {
1711 return $(element).recursivelyCollect('nextSibling');
1712 },
1713
1714 siblings: function(element) {
1715 element = $(element);
1716 return element.previousSiblings().reverse().concat(element.nextSiblings());
1717 },
1718
1719 match: function(element, selector) {
1720 if (Object.isString(selector))
1721 selector = new Selector(selector);
1722 return selector.match($(element));
1723 },
1724
1725 up: function(element, expression, index) {
1726 element = $(element);
1727 if (arguments.length == 1) return $(element.parentNode);
1728 var ancestors = element.ancestors();
1729 return Object.isNumber(expression) ? ancestors[expression] :
1730 Selector.findElement(ancestors, expression, index);
1731 },
1732
1733 down: function(element, expression, index) {
1734 element = $(element);
1735 if (arguments.length == 1) return element.firstDescendant();
1736 return Object.isNumber(expression) ? element.descendants()[expression] :
1737 element.select(expression)[index || 0];
1738 },
1739
1740 previous: function(element, expression, index) {
1741 element = $(element);
1742 if (arguments.length == 1) return $(Selector.handlers.previousElementSibling(element));
1743 var previousSiblings = element.previousSiblings();
1744 return Object.isNumber(expression) ? previousSiblings[expression] :
1745 Selector.findElement(previousSiblings, expression, index);
1746 },
1747
1748 next: function(element, expression, index) {
1749 element = $(element);
1750 if (arguments.length == 1) return $(Selector.handlers.nextElementSibling(element));
1751 var nextSiblings = element.nextSiblings();
1752 return Object.isNumber(expression) ? nextSiblings[expression] :
1753 Selector.findElement(nextSiblings, expression, index);
1754 },
1755
1756 select: function() {
1757 var args = $A(arguments), element = $(args.shift());
1758 return Selector.findChildElements(element, args);
1759 },
1760
1761 adjacent: function() {
1762 var args = $A(arguments), element = $(args.shift());
1763 return Selector.findChildElements(element.parentNode, args).without(element);
1764 },
1765
1766 identify: function(element) {
1767 element = $(element);
1768 var id = element.readAttribute('id'), self = arguments.callee;
1769 if (id) return id;
1770 do { id = 'anonymous_element_' + self.counter++ } while ($(id));
1771 element.writeAttribute('id', id);
1772 return id;
1773 },
1774
1775 readAttribute: function(element, name) {
1776 element = $(element);
1777 if (Prototype.Browser.IE) {
1778 var t = Element._attributeTranslations.read;
1779 if (t.values[name]) return t.values[name](element, name);
1780 if (t.names[name]) name = t.names[name];
1781 if (name.include(':')) {
1782 return (!element.attributes || !element.attributes[name]) ? null :
1783 element.attributes[name].value;
1784 }
1785 }
1786 return element.getAttribute(name);
1787 },
1788
1789 writeAttribute: function(element, name, value) {
1790 element = $(element);
1791 var attributes = { }, t = Element._attributeTranslations.write;
1792
1793 if (typeof name == 'object') attributes = name;
1794 else attributes[name] = Object.isUndefined(value) ? true : value;
1795
1796 for (var attr in attributes) {
1797 name = t.names[attr] || attr;
1798 value = attributes[attr];
1799 if (t.values[attr]) name = t.values[attr](element, value);
1800 if (value === false || value === null)
1801 element.removeAttribute(name);
1802 else if (value === true)
1803 element.setAttribute(name, name);
1804 else element.setAttribute(name, value);
1805 }
1806 return element;
1807 },
1808
1809 getHeight: function(element) {
1810 return $(element).getDimensions().height;
1811 },
1812
1813 getWidth: function(element) {
1814 return $(element).getDimensions().width;
1815 },
1816
1817 classNames: function(element) {
1818 return new Element.ClassNames(element);
1819 },
1820
1821 hasClassName: function(element, className) {
1822 if (!(element = $(element))) return;
1823 var elementClassName = element.className;
1824 return (elementClassName.length > 0 && (elementClassName == className ||
1825 new RegExp("(^|\\s)" + className + "(\\s|$)").test(elementClassName)));
1826 },
1827
1828 addClassName: function(element, className) {
1829 if (!(element = $(element))) return;
1830 if (!element.hasClassName(className))
1831 element.className += (element.className ? ' ' : '') + className;
1832 return element;
1833 },
1834
1835 removeClassName: function(element, className) {
1836 if (!(element = $(element))) return;
1837 element.className = element.className.replace(
1838 new RegExp("(^|\\s+)" + className + "(\\s+|$)"), ' ').strip();
1839 return element;
1840 },
1841
1842 toggleClassName: function(element, className) {
1843 if (!(element = $(element))) return;
1844 return element[element.hasClassName(className) ?
1845 'removeClassName' : 'addClassName'](className);
1846 },
1847
1848 // removes whitespace-only text node children
1849 cleanWhitespace: function(element) {
1850 element = $(element);
1851 var node = element.firstChild;
1852 while (node) {
1853 var nextNode = node.nextSibling;
1854 if (node.nodeType == 3 && !/\S/.test(node.nodeValue))
1855 element.removeChild(node);
1856 node = nextNode;
1857 }
1858 return element;
1859 },
1860
1861 empty: function(element) {
1862 return $(element).innerHTML.blank();
1863 },
1864
1865 descendantOf: function(element, ancestor) {
1866 element = $(element), ancestor = $(ancestor);
1867 var originalAncestor = ancestor;
1868
1869 if (element.compareDocumentPosition)
1870 return (element.compareDocumentPosition(ancestor) & 8) === 8;
1871
1872 if (element.sourceIndex && !Prototype.Browser.Opera) {
1873 var e = element.sourceIndex, a = ancestor.sourceIndex,
1874 nextAncestor = ancestor.nextSibling;
1875 if (!nextAncestor) {
1876 do { ancestor = ancestor.parentNode; }
1877 while (!(nextAncestor = ancestor.nextSibling) && ancestor.parentNode);
1878 }
1879 if (nextAncestor && nextAncestor.sourceIndex)
1880 return (e > a && e < nextAncestor.sourceIndex);
1881 }
1882
1883 while (element = element.parentNode)
1884 if (element == originalAncestor) return true;
1885 return false;
1886 },
1887
1888 scrollTo: function(element) {
1889 element = $(element);
1890 var pos = element.cumulativeOffset();
1891 window.scrollTo(pos[0], pos[1]);
1892 return element;
1893 },
1894
1895 getStyle: function(element, style) {
1896 element = $(element);
1897 style = style == 'float' ? 'cssFloat' : style.camelize();
1898 var value = element.style[style];
1899 if (!value) {
1900 var css = document.defaultView.getComputedStyle(element, null);
1901 value = css ? css[style] : null;
1902 }
1903 if (style == 'opacity') return value ? parseFloat(value) : 1.0;
1904 return value == 'auto' ? null : value;
1905 },
1906
1907 getOpacity: function(element) {
1908 return $(element).getStyle('opacity');
1909 },
1910
1911 setStyle: function(element, styles) {
1912 element = $(element);
1913 var elementStyle = element.style, match;
1914 if (Object.isString(styles)) {
1915 element.style.cssText += ';' + styles;
1916 return styles.include('opacity') ?
1917 element.setOpacity(styles.match(/opacity:\s*(\d?\.?\d*)/)[1]) : element;
1918 }
1919 for (var property in styles)
1920 if (property == 'opacity') element.setOpacity(styles[property]);
1921 else
1922 elementStyle[(property == 'float' || property == 'cssFloat') ?
1923 (Object.isUndefined(elementStyle.styleFloat) ? 'cssFloat' : 'styleFloat') :
1924 property] = styles[property];
1925
1926 return element;
1927 },
1928
1929 setOpacity: function(element, value) {
1930 element = $(element);
1931 element.style.opacity = (value == 1 || value === '') ? '' :
1932 (value < 0.00001) ? 0 : value;
1933 return element;
1934 },
1935
1936 getDimensions: function(element) {
1937 element = $(element);
1938 var display = $(element).getStyle('display');
1939 if (display != 'none' && display != null) // Safari bug
1940 return {width: element.offsetWidth, height: element.offsetHeight};
1941
1942 // All *Width and *Height properties give 0 on elements with display none,
1943 // so enable the element temporarily
1944 var els = element.style;
1945 var originalVisibility = els.visibility;
1946 var originalPosition = els.position;
1947 var originalDisplay = els.display;
1948 els.visibility = 'hidden';
1949 els.position = 'absolute';
1950 els.display = 'block';
1951 var originalWidth = element.clientWidth;
1952 var originalHeight = element.clientHeight;
1953 els.display = originalDisplay;
1954 els.position = originalPosition;
1955 els.visibility = originalVisibility;
1956 return {width: originalWidth, height: originalHeight};
1957 },
1958
1959 makePositioned: function(element) {
1960 element = $(element);
1961 var pos = Element.getStyle(element, 'position');
1962 if (pos == 'static' || !pos) {
1963 element._madePositioned = true;
1964 element.style.position = 'relative';
1965 // Opera returns the offset relative to the positioning context, when an
1966 // element is position relative but top and left have not been defined
1967 if (window.opera) {
1968 element.style.top = 0;
1969 element.style.left = 0;
1970 }
1971 }
1972 return element;
1973 },
1974
1975 undoPositioned: function(element) {
1976 element = $(element);
1977 if (element._madePositioned) {
1978 element._madePositioned = undefined;
1979 element.style.position =
1980 element.style.top =
1981 element.style.left =
1982 element.style.bottom =
1983 element.style.right = '';
1984 }
1985 return element;
1986 },
1987
1988 makeClipping: function(element) {
1989 element = $(element);
1990 if (element._overflow) return element;
1991 element._overflow = Element.getStyle(element, 'overflow') || 'auto';
1992 if (element._overflow !== 'hidden')
1993 element.style.overflow = 'hidden';
1994 return element;
1995 },
1996
1997 undoClipping: function(element) {
1998 element = $(element);
1999 if (!element._overflow) return element;
2000 element.style.overflow = element._overflow == 'auto' ? '' : element._overflow;
2001 element._overflow = null;
2002 return element;
2003 },
2004
2005 cumulativeOffset: function(element) {
2006 var valueT = 0, valueL = 0;
2007 do {
2008 valueT += element.offsetTop || 0;
2009 valueL += element.offsetLeft || 0;
2010 element = element.offsetParent;
2011 } while (element);
2012 return Element._returnOffset(valueL, valueT);
2013 },
2014
2015 positionedOffset: function(element) {
2016 var valueT = 0, valueL = 0;
2017 do {
2018 valueT += element.offsetTop || 0;
2019 valueL += element.offsetLeft || 0;
2020 element = element.offsetParent;
2021 if (element) {
2022 if (element.tagName == 'BODY') break;
2023 var p = Element.getStyle(element, 'position');
2024 if (p !== 'static') break;
2025 }
2026 } while (element);
2027 return Element._returnOffset(valueL, valueT);
2028 },
2029
2030 absolutize: function(element) {
2031 element = $(element);
2032 if (element.getStyle('position') == 'absolute') return;
2033 // Position.prepare(); // To be done manually by Scripty when it needs it.
2034
2035 var offsets = element.positionedOffset();
2036 var top = offsets[1];
2037 var left = offsets[0];
2038 var width = element.clientWidth;
2039 var height = element.clientHeight;
2040
2041 element._originalLeft = left - parseFloat(element.style.left || 0);
2042 element._originalTop = top - parseFloat(element.style.top || 0);
2043 element._originalWidth = element.style.width;
2044 element._originalHeight = element.style.height;
2045
2046 element.style.position = 'absolute';
2047 element.style.top = top + 'px';
2048 element.style.left = left + 'px';
2049 element.style.width = width + 'px';
2050 element.style.height = height + 'px';
2051 return element;
2052 },
2053
2054 relativize: function(element) {
2055 element = $(element);
2056 if (element.getStyle('position') == 'relative') return;
2057 // Position.prepare(); // To be done manually by Scripty when it needs it.
2058
2059 element.style.position = 'relative';
2060 var top = parseFloat(element.style.top || 0) - (element._originalTop || 0);
2061 var left = parseFloat(element.style.left || 0) - (element._originalLeft || 0);
2062
2063 element.style.top = top + 'px';
2064 element.style.left = left + 'px';
2065 element.style.height = element._originalHeight;
2066 element.style.width = element._originalWidth;
2067 return element;
2068 },
2069
2070 cumulativeScrollOffset: function(element) {
2071 var valueT = 0, valueL = 0;
2072 do {
2073 valueT += element.scrollTop || 0;
2074 valueL += element.scrollLeft || 0;
2075 element = element.parentNode;
2076 } while (element);
2077 return Element._returnOffset(valueL, valueT);
2078 },
2079
2080 getOffsetParent: function(element) {
2081 if (element.offsetParent) return $(element.offsetParent);
2082 if (element == document.body) return $(element);
2083
2084 while ((element = element.parentNode) && element != document.body)
2085 if (Element.getStyle(element, 'position') != 'static')
2086 return $(element);
2087
2088 return $(document.body);
2089 },
2090
2091 viewportOffset: function(forElement) {
2092 var valueT = 0, valueL = 0;
2093
2094 var element = forElement;
2095 do {
2096 valueT += element.offsetTop || 0;
2097 valueL += element.offsetLeft || 0;
2098
2099 // Safari fix
2100 if (element.offsetParent == document.body &&
2101 Element.getStyle(element, 'position') == 'absolute') break;
2102
2103 } while (element = element.offsetParent);
2104
2105 element = forElement;
2106 do {
2107 if (!Prototype.Browser.Opera || element.tagName == 'BODY') {
2108 valueT -= element.scrollTop || 0;
2109 valueL -= element.scrollLeft || 0;
2110 }
2111 } while (element = element.parentNode);
2112
2113 return Element._returnOffset(valueL, valueT);
2114 },
2115
2116 clonePosition: function(element, source) {
2117 var options = Object.extend({
2118 setLeft: true,
2119 setTop: true,
2120 setWidth: true,
2121 setHeight: true,
2122 offsetTop: 0,
2123 offsetLeft: 0
2124 }, arguments[2] || { });
2125
2126 // find page position of source
2127 source = $(source);
2128 var p = source.viewportOffset();
2129
2130 // find coordinate system to use
2131 element = $(element);
2132 var delta = [0, 0];
2133 var parent = null;
2134 // delta [0,0] will do fine with position: fixed elements,
2135 // position:absolute needs offsetParent deltas
2136 if (Element.getStyle(element, 'position') == 'absolute') {
2137 parent = element.getOffsetParent();
2138 delta = parent.viewportOffset();
2139 }
2140
2141 // correct by body offsets (fixes Safari)
2142 if (parent == document.body) {
2143 delta[0] -= document.body.offsetLeft;
2144 delta[1] -= document.body.offsetTop;
2145 }
2146
2147 // set position
2148 if (options.setLeft) element.style.left = (p[0] - delta[0] + options.offsetLeft) + 'px';
2149 if (options.setTop) element.style.top = (p[1] - delta[1] + options.offsetTop) + 'px';
2150 if (options.setWidth) element.style.width = source.offsetWidth + 'px';
2151 if (options.setHeight) element.style.height = source.offsetHeight + 'px';
2152 return element;
2153 }
2154};
2155
2156Element.Methods.identify.counter = 1;
2157
2158Object.extend(Element.Methods, {
2159 getElementsBySelector: Element.Methods.select,
2160 childElements: Element.Methods.immediateDescendants
2161});
2162
2163Element._attributeTranslations = {
2164 write: {
2165 names: {
2166 className: 'class',
2167 htmlFor: 'for'
2168 },
2169 values: { }
2170 }
2171};
2172
2173if (Prototype.Browser.Opera) {
2174 Element.Methods.getStyle = Element.Methods.getStyle.wrap(
2175 function(proceed, element, style) {
2176 switch (style) {
2177 case 'left': case 'top': case 'right': case 'bottom':
2178 if (proceed(element, 'position') === 'static') return null;
2179 case 'height': case 'width':
2180 // returns '0px' for hidden elements; we want it to return null
2181 if (!Element.visible(element)) return null;
2182
2183 // returns the border-box dimensions rather than the content-box
2184 // dimensions, so we subtract padding and borders from the value
2185 var dim = parseInt(proceed(element, style), 10);
2186
2187 if (dim !== element['offset' + style.capitalize()])
2188 return dim + 'px';
2189
2190 var properties;
2191 if (style === 'height') {
2192 properties = ['border-top-width', 'padding-top',
2193 'padding-bottom', 'border-bottom-width'];
2194 }
2195 else {
2196 properties = ['border-left-width', 'padding-left',
2197 'padding-right', 'border-right-width'];
2198 }
2199 return properties.inject(dim, function(memo, property) {
2200 var val = proceed(element, property);
2201 return val === null ? memo : memo - parseInt(val, 10);
2202 }) + 'px';
2203 default: return proceed(element, style);
2204 }
2205 }
2206 );
2207
2208 Element.Methods.readAttribute = Element.Methods.readAttribute.wrap(
2209 function(proceed, element, attribute) {
2210 if (attribute === 'title') return element.title;
2211 return proceed(element, attribute);
2212 }
2213 );
2214}
2215
2216else if (Prototype.Browser.IE) {
2217 // IE doesn't report offsets correctly for static elements, so we change them
2218 // to "relative" to get the values, then change them back.
2219 Element.Methods.getOffsetParent = Element.Methods.getOffsetParent.wrap(
2220 function(proceed, element) {
2221 element = $(element);
2222 var position = element.getStyle('position');
2223 if (position !== 'static') return proceed(element);
2224 element.setStyle({ position: 'relative' });
2225 var value = proceed(element);
2226 element.setStyle({ position: position });
2227 return value;
2228 }
2229 );
2230
2231 $w('positionedOffset viewportOffset').each(function(method) {
2232 Element.Methods[method] = Element.Methods[method].wrap(
2233 function(proceed, element) {
2234 element = $(element);
2235 var position = element.getStyle('position');
2236 if (position !== 'static') return proceed(element);
2237 // Trigger hasLayout on the offset parent so that IE6 reports
2238 // accurate offsetTop and offsetLeft values for position: fixed.
2239 var offsetParent = element.getOffsetParent();
2240 if (offsetParent && offsetParent.getStyle('position') === 'fixed')
2241 offsetParent.setStyle({ zoom: 1 });
2242 element.setStyle({ position: 'relative' });
2243 var value = proceed(element);
2244 element.setStyle({ position: position });
2245 return value;
2246 }
2247 );
2248 });
2249
2250 Element.Methods.getStyle = function(element, style) {
2251 element = $(element);
2252 style = (style == 'float' || style == 'cssFloat') ? 'styleFloat' : style.camelize();
2253 var value = element.style[style];
2254 if (!value && element.currentStyle) value = element.currentStyle[style];
2255
2256 if (style == 'opacity') {
2257 if (value = (element.getStyle('filter') || '').match(/alpha\(opacity=(.*)\)/))
2258 if (value[1]) return parseFloat(value[1]) / 100;
2259 return 1.0;
2260 }
2261
2262 if (value == 'auto') {
2263 if ((style == 'width' || style == 'height') && (element.getStyle('display') != 'none'))
2264 return element['offset' + style.capitalize()] + 'px';
2265 return null;
2266 }
2267 return value;
2268 };
2269
2270 Element.Methods.setOpacity = function(element, value) {
2271 function stripAlpha(filter){
2272 return filter.replace(/alpha\([^\)]*\)/gi,'');
2273 }
2274 element = $(element);
2275 var currentStyle = element.currentStyle;
2276 if ((currentStyle && !currentStyle.hasLayout) ||
2277 (!currentStyle && element.style.zoom == 'normal'))
2278 element.style.zoom = 1;
2279
2280 var filter = element.getStyle('filter'), style = element.style;
2281 if (value == 1 || value === '') {
2282 (filter = stripAlpha(filter)) ?
2283 style.filter = filter : style.removeAttribute('filter');
2284 return element;
2285 } else if (value < 0.00001) value = 0;
2286 style.filter = stripAlpha(filter) +
2287 'alpha(opacity=' + (value * 100) + ')';
2288 return element;
2289 };
2290
2291 Element._attributeTranslations = {
2292 read: {
2293 names: {
2294 'class': 'className',
2295 'for': 'htmlFor'
2296 },
2297 values: {
2298 _getAttr: function(element, attribute) {
2299 return element.getAttribute(attribute, 2);
2300 },
2301 _getAttrNode: function(element, attribute) {
2302 var node = element.getAttributeNode(attribute);
2303 return node ? node.value : "";
2304 },
2305 _getEv: function(element, attribute) {
2306 attribute = element.getAttribute(attribute);
2307 return attribute ? attribute.toString().slice(23, -2) : null;
2308 },
2309 _flag: function(element, attribute) {
2310 return $(element).hasAttribute(attribute) ? attribute : null;
2311 },
2312 style: function(element) {
2313 return element.style.cssText.toLowerCase();
2314 },
2315 title: function(element) {
2316 return element.title;
2317 }
2318 }
2319 }
2320 };
2321
2322 Element._attributeTranslations.write = {
2323 names: Object.extend({
2324 cellpadding: 'cellPadding',
2325 cellspacing: 'cellSpacing'
2326 }, Element._attributeTranslations.read.names),
2327 values: {
2328 checked: function(element, value) {
2329 element.checked = !!value;
2330 },
2331
2332 style: function(element, value) {
2333 element.style.cssText = value ? value : '';
2334 }
2335 }
2336 };
2337
2338 Element._attributeTranslations.has = {};
2339
2340 $w('colSpan rowSpan vAlign dateTime accessKey tabIndex ' +
2341 'encType maxLength readOnly longDesc').each(function(attr) {
2342 Element._attributeTranslations.write.names[attr.toLowerCase()] = attr;
2343 Element._attributeTranslations.has[attr.toLowerCase()] = attr;
2344 });
2345
2346 (function(v) {
2347 Object.extend(v, {
2348 href: v._getAttr,
2349 src: v._getAttr,
2350 type: v._getAttr,
2351 action: v._getAttrNode,
2352 disabled: v._flag,
2353 checked: v._flag,
2354 readonly: v._flag,
2355 multiple: v._flag,
2356 onload: v._getEv,
2357 onunload: v._getEv,
2358 onclick: v._getEv,
2359 ondblclick: v._getEv,
2360 onmousedown: v._getEv,
2361 onmouseup: v._getEv,
2362 onmouseover: v._getEv,
2363 onmousemove: v._getEv,
2364 onmouseout: v._getEv,
2365 onfocus: v._getEv,
2366 onblur: v._getEv,
2367 onkeypress: v._getEv,
2368 onkeydown: v._getEv,
2369 onkeyup: v._getEv,
2370 onsubmit: v._getEv,
2371 onreset: v._getEv,
2372 onselect: v._getEv,
2373 onchange: v._getEv
2374 });
2375 })(Element._attributeTranslations.read.values);
2376}
2377
2378else if (Prototype.Browser.Gecko && /rv:1\.8\.0/.test(navigator.userAgent)) {
2379 Element.Methods.setOpacity = function(element, value) {
2380 element = $(element);
2381 element.style.opacity = (value == 1) ? 0.999999 :
2382 (value === '') ? '' : (value < 0.00001) ? 0 : value;
2383 return element;
2384 };
2385}
2386
2387else if (Prototype.Browser.WebKit) {
2388 Element.Methods.setOpacity = function(element, value) {
2389 element = $(element);
2390 element.style.opacity = (value == 1 || value === '') ? '' :
2391 (value < 0.00001) ? 0 : value;
2392
2393 if (value == 1)
2394 if(element.tagName == 'IMG' && element.width) {
2395 element.width++; element.width--;
2396 } else try {
2397 var n = document.createTextNode(' ');
2398 element.appendChild(n);
2399 element.removeChild(n);
2400 } catch (e) { }
2401
2402 return element;
2403 };
2404
2405 // Safari returns margins on body which is incorrect if the child is absolutely
2406 // positioned. For performance reasons, redefine Element#cumulativeOffset for
2407 // KHTML/WebKit only.
2408 Element.Methods.cumulativeOffset = function(element) {
2409 var valueT = 0, valueL = 0;
2410 do {
2411 valueT += element.offsetTop || 0;
2412 valueL += element.offsetLeft || 0;
2413 if (element.offsetParent == document.body)
2414 if (Element.getStyle(element, 'position') == 'absolute') break;
2415
2416 element = element.offsetParent;
2417 } while (element);
2418
2419 return Element._returnOffset(valueL, valueT);
2420 };
2421}
2422
2423if (Prototype.Browser.IE || Prototype.Browser.Opera) {
2424 // IE and Opera are missing .innerHTML support for TABLE-related and SELECT elements
2425 Element.Methods.update = function(element, content) {
2426 element = $(element);
2427
2428 if (content && content.toElement) content = content.toElement();
2429 if (Object.isElement(content)) return element.update().insert(content);
2430
2431 content = Object.toHTML(content);
2432 var tagName = element.tagName.toUpperCase();
2433
2434 if (tagName in Element._insertionTranslations.tags) {
2435 $A(element.childNodes).each(function(node) { element.removeChild(node) });
2436 Element._getContentFromAnonymousElement(tagName, content.stripScripts())
2437 .each(function(node) { element.appendChild(node) });
2438 }
2439 else element.innerHTML = content.stripScripts();
2440
2441 content.evalScripts.bind(content).defer();
2442 return element;
2443 };
2444}
2445
2446if ('outerHTML' in document.createElement('div')) {
2447 Element.Methods.replace = function(element, content) {
2448 element = $(element);
2449
2450 if (content && content.toElement) content = content.toElement();
2451 if (Object.isElement(content)) {
2452 element.parentNode.replaceChild(content, element);
2453 return element;
2454 }
2455
2456 content = Object.toHTML(content);
2457 var parent = element.parentNode, tagName = parent.tagName.toUpperCase();
2458
2459 if (Element._insertionTranslations.tags[tagName]) {
2460 var nextSibling = element.next();
2461 var fragments = Element._getContentFromAnonymousElement(tagName, content.stripScripts());
2462 parent.removeChild(element);
2463 if (nextSibling)
2464 fragments.each(function(node) { parent.insertBefore(node, nextSibling) });
2465 else
2466 fragments.each(function(node) { parent.appendChild(node) });
2467 }
2468 else element.outerHTML = content.stripScripts();
2469
2470 content.evalScripts.bind(content).defer();
2471 return element;
2472 };
2473}
2474
2475Element._returnOffset = function(l, t) {
2476 var result = [l, t];
2477 result.left = l;
2478 result.top = t;
2479 return result;
2480};
2481
2482Element._getContentFromAnonymousElement = function(tagName, html) {
2483 var div = new Element('div'), t = Element._insertionTranslations.tags[tagName];
2484 if (t) {
2485 div.innerHTML = t[0] + html + t[1];
2486 t[2].times(function() { div = div.firstChild });
2487 } else div.innerHTML = html;
2488 return $A(div.childNodes);
2489};
2490
2491Element._insertionTranslations = {
2492 before: function(element, node) {
2493 element.parentNode.insertBefore(node, element);
2494 },
2495 top: function(element, node) {
2496 element.insertBefore(node, element.firstChild);
2497 },
2498 bottom: function(element, node) {
2499 element.appendChild(node);
2500 },
2501 after: function(element, node) {
2502 element.parentNode.insertBefore(node, element.nextSibling);
2503 },
2504 tags: {
2505 TABLE: ['<table>', '</table>', 1],
2506 TBODY: ['<table><tbody>', '</tbody></table>', 2],
2507 TR: ['<table><tbody><tr>', '</tr></tbody></table>', 3],
2508 TD: ['<table><tbody><tr><td>', '</td></tr></tbody></table>', 4],
2509 SELECT: ['<select>', '</select>', 1]
2510 }
2511};
2512
2513(function() {
2514 Object.extend(this.tags, {
2515 THEAD: this.tags.TBODY,
2516 TFOOT: this.tags.TBODY,
2517 TH: this.tags.TD
2518 });
2519}).call(Element._insertionTranslations);
2520
2521Element.Methods.Simulated = {
2522 hasAttribute: function(element, attribute) {
2523 attribute = Element._attributeTranslations.has[attribute] || attribute;
2524 var node = $(element).getAttributeNode(attribute);
2525 return node && node.specified;
2526 }
2527};
2528
2529Element.Methods.ByTag = { };
2530
2531Object.extend(Element, Element.Methods);
2532
2533if (!Prototype.BrowserFeatures.ElementExtensions &&
2534 document.createElement('div').__proto__) {
2535 window.HTMLElement = { };
2536 window.HTMLElement.prototype = document.createElement('div').__proto__;
2537 Prototype.BrowserFeatures.ElementExtensions = true;
2538}
2539
2540Element.extend = (function() {
2541 if (Prototype.BrowserFeatures.SpecificElementExtensions)
2542 return Prototype.K;
2543
2544 var Methods = { }, ByTag = Element.Methods.ByTag;
2545
2546 var extend = Object.extend(function(element) {
2547 if (!element || element._extendedByPrototype ||
2548 element.nodeType != 1 || element == window) return element;
2549
2550 var methods = Object.clone(Methods),
2551 tagName = element.tagName, property, value;
2552
2553 // extend methods for specific tags
2554 if (ByTag[tagName]) Object.extend(methods, ByTag[tagName]);
2555
2556 for (property in methods) {
2557 value = methods[property];
2558 if (Object.isFunction(value) && !(property in element))
2559 element[property] = value.methodize();
2560 }
2561
2562 element._extendedByPrototype = Prototype.emptyFunction;
2563 return element;
2564
2565 }, {
2566 refresh: function() {
2567 // extend methods for all tags (Safari doesn't need this)
2568 if (!Prototype.BrowserFeatures.ElementExtensions) {
2569 Object.extend(Methods, Element.Methods);
2570 Object.extend(Methods, Element.Methods.Simulated);
2571 }
2572 }
2573 });
2574
2575 extend.refresh();
2576 return extend;
2577})();
2578
2579Element.hasAttribute = function(element, attribute) {
2580 if (element.hasAttribute) return element.hasAttribute(attribute);
2581 return Element.Methods.Simulated.hasAttribute(element, attribute);
2582};
2583
2584Element.addMethods = function(methods) {
2585 var F = Prototype.BrowserFeatures, T = Element.Methods.ByTag;
2586
2587 if (!methods) {
2588 Object.extend(Form, Form.Methods);
2589 Object.extend(Form.Element, Form.Element.Methods);
2590 Object.extend(Element.Methods.ByTag, {
2591 "FORM": Object.clone(Form.Methods),
2592 "INPUT": Object.clone(Form.Element.Methods),
2593 "SELECT": Object.clone(Form.Element.Methods),
2594 "TEXTAREA": Object.clone(Form.Element.Methods)
2595 });
2596 }
2597
2598 if (arguments.length == 2) {
2599 var tagName = methods;
2600 methods = arguments[1];
2601 }
2602
2603 if (!tagName) Object.extend(Element.Methods, methods || { });
2604 else {
2605 if (Object.isArray(tagName)) tagName.each(extend);
2606 else extend(tagName);
2607 }
2608
2609 function extend(tagName) {
2610 tagName = tagName.toUpperCase();
2611 if (!Element.Methods.ByTag[tagName])
2612 Element.Methods.ByTag[tagName] = { };
2613 Object.extend(Element.Methods.ByTag[tagName], methods);
2614 }
2615
2616 function copy(methods, destination, onlyIfAbsent) {
2617 onlyIfAbsent = onlyIfAbsent || false;
2618 for (var property in methods) {
2619 var value = methods[property];
2620 if (!Object.isFunction(value)) continue;
2621 if (!onlyIfAbsent || !(property in destination))
2622 destination[property] = value.methodize();
2623 }
2624 }
2625
2626 function findDOMClass(tagName) {
2627 var klass;
2628 var trans = {
2629 "OPTGROUP": "OptGroup", "TEXTAREA": "TextArea", "P": "Paragraph",
2630 "FIELDSET": "FieldSet", "UL": "UList", "OL": "OList", "DL": "DList",
2631 "DIR": "Directory", "H1": "Heading", "H2": "Heading", "H3": "Heading",
2632 "H4": "Heading", "H5": "Heading", "H6": "Heading", "Q": "Quote",
2633 "INS": "Mod", "DEL": "Mod", "A": "Anchor", "IMG": "Image", "CAPTION":
2634 "TableCaption", "COL": "TableCol", "COLGROUP": "TableCol", "THEAD":
2635 "TableSection", "TFOOT": "TableSection", "TBODY": "TableSection", "TR":
2636 "TableRow", "TH": "TableCell", "TD": "TableCell", "FRAMESET":
2637 "FrameSet", "IFRAME": "IFrame"
2638 };
2639 if (trans[tagName]) klass = 'HTML' + trans[tagName] + 'Element';
2640 if (window[klass]) return window[klass];
2641 klass = 'HTML' + tagName + 'Element';
2642 if (window[klass]) return window[klass];
2643 klass = 'HTML' + tagName.capitalize() + 'Element';
2644 if (window[klass]) return window[klass];
2645
2646 window[klass] = { };
2647 window[klass].prototype = document.createElement(tagName).__proto__;
2648 return window[klass];
2649 }
2650
2651 if (F.ElementExtensions) {
2652 copy(Element.Methods, HTMLElement.prototype);
2653 copy(Element.Methods.Simulated, HTMLElement.prototype, true);
2654 }
2655
2656 if (F.SpecificElementExtensions) {
2657 for (var tag in Element.Methods.ByTag) {
2658 var klass = findDOMClass(tag);
2659 if (Object.isUndefined(klass)) continue;
2660 copy(T[tag], klass.prototype);
2661 }
2662 }
2663
2664 Object.extend(Element, Element.Methods);
2665 delete Element.ByTag;
2666
2667 if (Element.extend.refresh) Element.extend.refresh();
2668 Element.cache = { };
2669};
2670
2671document.viewport = {
2672 getDimensions: function() {
2673 var dimensions = { };
2674 var B = Prototype.Browser;
2675 $w('width height').each(function(d) {
2676 var D = d.capitalize();
2677 dimensions[d] = (B.WebKit && !document.evaluate) ? self['inner' + D] :
2678 (B.Opera) ? document.body['client' + D] : document.documentElement['client' + D];
2679 });
2680 return dimensions;
2681 },
2682
2683 getWidth: function() {
2684 return this.getDimensions().width;
2685 },
2686
2687 getHeight: function() {
2688 return this.getDimensions().height;
2689 },
2690
2691 getScrollOffsets: function() {
2692 return Element._returnOffset(
2693 window.pageXOffset || document.documentElement.scrollLeft || document.body.scrollLeft,
2694 window.pageYOffset || document.documentElement.scrollTop || document.body.scrollTop);
2695 }
2696};
2697/* Portions of the Selector class are derived from Jack Slocum’s DomQuery,
2698 * part of YUI-Ext version 0.40, distributed under the terms of an MIT-style
2699 * license. Please see http://www.yui-ext.com/ for more information. */
2700
2701var Selector = Class.create({
2702 initialize: function(expression) {
2703 this.expression = expression.strip();
2704 this.compileMatcher();
2705 },
2706
2707 shouldUseXPath: function() {
2708 if (!Prototype.BrowserFeatures.XPath) return false;
2709
2710 var e = this.expression;
2711
2712 // Safari 3 chokes on :*-of-type and :empty
2713 if (Prototype.Browser.WebKit &&
2714 (e.include("-of-type") || e.include(":empty")))
2715 return false;
2716
2717 // XPath can't do namespaced attributes, nor can it read
2718 // the "checked" property from DOM nodes
2719 if ((/(\[[\w-]*?:|:checked)/).test(this.expression))
2720 return false;
2721
2722 return true;
2723 },
2724
2725 compileMatcher: function() {
2726 if (this.shouldUseXPath())
2727 return this.compileXPathMatcher();
2728
2729 var e = this.expression, ps = Selector.patterns, h = Selector.handlers,
2730 c = Selector.criteria, le, p, m;
2731
2732 if (Selector._cache[e]) {
2733 this.matcher = Selector._cache[e];
2734 return;
2735 }
2736
2737 this.matcher = ["this.matcher = function(root) {",
2738 "var r = root, h = Selector.handlers, c = false, n;"];
2739
2740 while (e && le != e && (/\S/).test(e)) {
2741 le = e;
2742 for (var i in ps) {
2743 p = ps[i];
2744 if (m = e.match(p)) {
2745 this.matcher.push(Object.isFunction(c[i]) ? c[i](m) :
2746 new Template(c[i]).evaluate(m));
2747 e = e.replace(m[0], '');
2748 break;
2749 }
2750 }
2751 }
2752
2753 this.matcher.push("return h.unique(n);\n}");
2754 eval(this.matcher.join('\n'));
2755 Selector._cache[this.expression] = this.matcher;
2756 },
2757
2758 compileXPathMatcher: function() {
2759 var e = this.expression, ps = Selector.patterns,
2760 x = Selector.xpath, le, m;
2761
2762 if (Selector._cache[e]) {
2763 this.xpath = Selector._cache[e]; return;
2764 }
2765
2766 this.matcher = ['.//*'];
2767 while (e && le != e && (/\S/).test(e)) {
2768 le = e;
2769 for (var i in ps) {
2770 if (m = e.match(ps[i])) {
2771 this.matcher.push(Object.isFunction(x[i]) ? x[i](m) :
2772 new Template(x[i]).evaluate(m));
2773 e = e.replace(m[0], '');
2774 break;
2775 }
2776 }
2777 }
2778
2779 this.xpath = this.matcher.join('');
2780 Selector._cache[this.expression] = this.xpath;
2781 },
2782
2783 findElements: function(root) {
2784 root = root || document;
2785 if (this.xpath) return document._getElementsByXPath(this.xpath, root);
2786 return this.matcher(root);
2787 },
2788
2789 match: function(element) {
2790 this.tokens = [];
2791
2792 var e = this.expression, ps = Selector.patterns, as = Selector.assertions;
2793 var le, p, m;
2794
2795 while (e && le !== e && (/\S/).test(e)) {
2796 le = e;
2797 for (var i in ps) {
2798 p = ps[i];
2799 if (m = e.match(p)) {
2800 // use the Selector.assertions methods unless the selector
2801 // is too complex.
2802 if (as[i]) {
2803 this.tokens.push([i, Object.clone(m)]);
2804 e = e.replace(m[0], '');
2805 } else {
2806 // reluctantly do a document-wide search
2807 // and look for a match in the array
2808 return this.findElements(document).include(element);
2809 }
2810 }
2811 }
2812 }
2813
2814 var match = true, name, matches;
2815 for (var i = 0, token; token = this.tokens[i]; i++) {
2816 name = token[0], matches = token[1];
2817 if (!Selector.assertions[name](element, matches)) {
2818 match = false; break;
2819 }
2820 }
2821
2822 return match;
2823 },
2824
2825 toString: function() {
2826 return this.expression;
2827 },
2828
2829 inspect: function() {
2830 return "#<Selector:" + this.expression.inspect() + ">";
2831 }
2832});
2833
2834Object.extend(Selector, {
2835 _cache: { },
2836
2837 xpath: {
2838 descendant: "//*",
2839 child: "/*",
2840 adjacent: "/following-sibling::*[1]",
2841 laterSibling: '/following-sibling::*',
2842 tagName: function(m) {
2843 if (m[1] == '*') return '';
2844 return "[local-name()='" + m[1].toLowerCase() +
2845 "' or local-name()='" + m[1].toUpperCase() + "']";
2846 },
2847 className: "[contains(concat(' ', @class, ' '), ' #{1} ')]",
2848 id: "[@id='#{1}']",
2849 attrPresence: function(m) {
2850 m[1] = m[1].toLowerCase();
2851 return new Template("[@#{1}]").evaluate(m);
2852 },
2853 attr: function(m) {
2854 m[1] = m[1].toLowerCase();
2855 m[3] = m[5] || m[6];
2856 return new Template(Selector.xpath.operators[m[2]]).evaluate(m);
2857 },
2858 pseudo: function(m) {
2859 var h = Selector.xpath.pseudos[m[1]];
2860 if (!h) return '';
2861 if (Object.isFunction(h)) return h(m);
2862 return new Template(Selector.xpath.pseudos[m[1]]).evaluate(m);
2863 },
2864 operators: {
2865 '=': "[@#{1}='#{3}']",
2866 '!=': "[@#{1}!='#{3}']",
2867 '^=': "[starts-with(@#{1}, '#{3}')]",
2868 '$=': "[substring(@#{1}, (string-length(@#{1}) - string-length('#{3}') + 1))='#{3}']",
2869 '*=': "[contains(@#{1}, '#{3}')]",
2870 '~=': "[contains(concat(' ', @#{1}, ' '), ' #{3} ')]",
2871 '|=': "[contains(concat('-', @#{1}, '-'), '-#{3}-')]"
2872 },
2873 pseudos: {
2874 'first-child': '[not(preceding-sibling::*)]',
2875 'last-child': '[not(following-sibling::*)]',
2876 'only-child': '[not(preceding-sibling::* or following-sibling::*)]',
2877 'empty': "[count(*) = 0 and (count(text()) = 0 or translate(text(), ' \t\r\n', '') = '')]",
2878 'checked': "[@checked]",
2879 'disabled': "[@disabled]",
2880 'enabled': "[not(@disabled)]",
2881 'not': function(m) {
2882 var e = m[6], p = Selector.patterns,
2883 x = Selector.xpath, le, v;
2884
2885 var exclusion = [];
2886 while (e && le != e && (/\S/).test(e)) {
2887 le = e;
2888 for (var i in p) {
2889 if (m = e.match(p[i])) {
2890 v = Object.isFunction(x[i]) ? x[i](m) : new Template(x[i]).evaluate(m);
2891 exclusion.push("(" + v.substring(1, v.length - 1) + ")");
2892 e = e.replace(m[0], '');
2893 break;
2894 }
2895 }
2896 }
2897 return "[not(" + exclusion.join(" and ") + ")]";
2898 },
2899 'nth-child': function(m) {
2900 return Selector.xpath.pseudos.nth("(count(./preceding-sibling::*) + 1) ", m);
2901 },
2902 'nth-last-child': function(m) {
2903 return Selector.xpath.pseudos.nth("(count(./following-sibling::*) + 1) ", m);
2904 },
2905 'nth-of-type': function(m) {
2906 return Selector.xpath.pseudos.nth("position() ", m);
2907 },
2908 'nth-last-of-type': function(m) {
2909 return Selector.xpath.pseudos.nth("(last() + 1 - position()) ", m);
2910 },
2911 'first-of-type': function(m) {
2912 m[6] = "1"; return Selector.xpath.pseudos['nth-of-type'](m);
2913 },
2914 'last-of-type': function(m) {
2915 m[6] = "1"; return Selector.xpath.pseudos['nth-last-of-type'](m);
2916 },
2917 'only-of-type': function(m) {
2918 var p = Selector.xpath.pseudos; return p['first-of-type'](m) + p['last-of-type'](m);
2919 },
2920 nth: function(fragment, m) {
2921 var mm, formula = m[6], predicate;
2922 if (formula == 'even') formula = '2n+0';
2923 if (formula == 'odd') formula = '2n+1';
2924 if (mm = formula.match(/^(\d+)$/)) // digit only
2925 return '[' + fragment + "= " + mm[1] + ']';
2926 if (mm = formula.match(/^(-?\d*)?n(([+-])(\d+))?/)) { // an+b
2927 if (mm[1] == "-") mm[1] = -1;
2928 var a = mm[1] ? Number(mm[1]) : 1;
2929 var b = mm[2] ? Number(mm[2]) : 0;
2930 predicate = "[((#{fragment} - #{b}) mod #{a} = 0) and " +
2931 "((#{fragment} - #{b}) div #{a} >= 0)]";
2932 return new Template(predicate).evaluate({
2933 fragment: fragment, a: a, b: b });
2934 }
2935 }
2936 }
2937 },
2938
2939 criteria: {
2940 tagName: 'n = h.tagName(n, r, "#{1}", c); c = false;',
2941 className: 'n = h.className(n, r, "#{1}", c); c = false;',
2942 id: 'n = h.id(n, r, "#{1}", c); c = false;',
2943 attrPresence: 'n = h.attrPresence(n, r, "#{1}", c); c = false;',
2944 attr: function(m) {
2945 m[3] = (m[5] || m[6]);
2946 return new Template('n = h.attr(n, r, "#{1}", "#{3}", "#{2}", c); c = false;').evaluate(m);
2947 },
2948 pseudo: function(m) {
2949 if (m[6]) m[6] = m[6].replace(/"/g, '\\"');
2950 return new Template('n = h.pseudo(n, "#{1}", "#{6}", r, c); c = false;').evaluate(m);
2951 },
2952 descendant: 'c = "descendant";',
2953 child: 'c = "child";',
2954 adjacent: 'c = "adjacent";',
2955 laterSibling: 'c = "laterSibling";'
2956 },
2957
2958 patterns: {
2959 // combinators must be listed first
2960 // (and descendant needs to be last combinator)
2961 laterSibling: /^\s*~\s*/,
2962 child: /^\s*>\s*/,
2963 adjacent: /^\s*\+\s*/,
2964 descendant: /^\s/,
2965
2966 // selectors follow
2967 tagName: /^\s*(\*|[\w\-]+)(\b|$)?/,
2968 id: /^#([\w\-\*]+)(\b|$)/,
2969 className: /^\.([\w\-\*]+)(\b|$)/,
2970 pseudo:
2971/^:((first|last|nth|nth-last|only)(-child|-of-type)|empty|checked|(en|dis)abled|not)(\((.*?)\))?(\b|$|(?=\s|[:+~>]))/,
2972 attrPresence: /^\[([\w]+)\]/,
2973 attr: /\[((?:[\w-]*:)?[\w-]+)\s*(?:([!^$*~|]?=)\s*((['"])([^\4]*?)\4|([^'"][^\]]*?)))?\]/
2974 },
2975
2976 // for Selector.match and Element#match
2977 assertions: {
2978 tagName: function(element, matches) {
2979 return matches[1].toUpperCase() == element.tagName.toUpperCase();
2980 },
2981
2982 className: function(element, matches) {
2983 return Element.hasClassName(element, matches[1]);
2984 },
2985
2986 id: function(element, matches) {
2987 return element.id === matches[1];
2988 },
2989
2990 attrPresence: function(element, matches) {
2991 return Element.hasAttribute(element, matches[1]);
2992 },
2993
2994 attr: function(element, matches) {
2995 var nodeValue = Element.readAttribute(element, matches[1]);
2996 return nodeValue && Selector.operators[matches[2]](nodeValue, matches[5] || matches[6]);
2997 }
2998 },
2999
3000 handlers: {
3001 // UTILITY FUNCTIONS
3002 // joins two collections
3003 concat: function(a, b) {
3004 for (var i = 0, node; node = b[i]; i++)
3005 a.push(node);
3006 return a;
3007 },
3008
3009 // marks an array of nodes for counting
3010 mark: function(nodes) {
3011 var _true = Prototype.emptyFunction;
3012 for (var i = 0, node; node = nodes[i]; i++)
3013 node._countedByPrototype = _true;
3014 return nodes;
3015 },
3016
3017 unmark: function(nodes) {
3018 for (var i = 0, node; node = nodes[i]; i++)
3019 node._countedByPrototype = undefined;
3020 return nodes;
3021 },
3022
3023 // mark each child node with its position (for nth calls)
3024 // "ofType" flag indicates whether we're indexing for nth-of-type
3025 // rather than nth-child
3026 index: function(parentNode, reverse, ofType) {
3027 parentNode._countedByPrototype = Prototype.emptyFunction;
3028 if (reverse) {
3029 for (var nodes = parentNode.childNodes, i = nodes.length - 1, j = 1; i >= 0; i--) {
3030 var node = nodes[i];
3031 if (node.nodeType == 1 && (!ofType || node._countedByPrototype)) node.nodeIndex = j++;
3032 }
3033 } else {
3034 for (var i = 0, j = 1, nodes = parentNode.childNodes; node = nodes[i]; i++)
3035 if (node.nodeType == 1 && (!ofType || node._countedByPrototype)) node.nodeIndex = j++;
3036 }
3037 },
3038
3039 // filters out duplicates and extends all nodes
3040 unique: function(nodes) {
3041 if (nodes.length == 0) return nodes;
3042 var results = [], n;
3043 for (var i = 0, l = nodes.length; i < l; i++)
3044 if (!(n = nodes[i])._countedByPrototype) {
3045 n._countedByPrototype = Prototype.emptyFunction;
3046 results.push(Element.extend(n));
3047 }
3048 return Selector.handlers.unmark(results);
3049 },
3050
3051 // COMBINATOR FUNCTIONS
3052 descendant: function(nodes) {
3053 var h = Selector.handlers;
3054 for (var i = 0, results = [], node; node = nodes[i]; i++)
3055 h.concat(results, node.getElementsByTagName('*'));
3056 return results;
3057 },
3058
3059 child: function(nodes) {
3060 var h = Selector.handlers;
3061 for (var i = 0, results = [], node; node = nodes[i]; i++) {
3062 for (var j = 0, child; child = node.childNodes[j]; j++)
3063 if (child.nodeType == 1 && child.tagName != '!') results.push(child);
3064 }
3065 return results;
3066 },
3067
3068 adjacent: function(nodes) {
3069 for (var i = 0, results = [], node; node = nodes[i]; i++) {
3070 var next = this.nextElementSibling(node);
3071 if (next) results.push(next);
3072 }
3073 return results;
3074 },
3075
3076 laterSibling: function(nodes) {
3077 var h = Selector.handlers;
3078 for (var i = 0, results = [], node; node = nodes[i]; i++)
3079 h.concat(results, Element.nextSiblings(node));
3080 return results;
3081 },
3082
3083 nextElementSibling: function(node) {
3084 while (node = node.nextSibling)
3085 if (node.nodeType == 1) return node;
3086 return null;
3087 },
3088
3089 previousElementSibling: function(node) {
3090 while (node = node.previousSibling)
3091 if (node.nodeType == 1) return node;
3092 return null;
3093 },
3094
3095 // TOKEN FUNCTIONS
3096 tagName: function(nodes, root, tagName, combinator) {
3097 var uTagName = tagName.toUpperCase();
3098 var results = [], h = Selector.handlers;
3099 if (nodes) {
3100 if (combinator) {
3101 // fastlane for ordinary descendant combinators
3102 if (combinator == "descendant") {
3103 for (var i = 0, node; node = nodes[i]; i++)
3104 h.concat(results, node.getElementsByTagName(tagName));
3105 return results;
3106 } else nodes = this[combinator](nodes);
3107 if (tagName == "*") return nodes;
3108 }
3109 for (var i = 0, node; node = nodes[i]; i++)
3110 if (node.tagName.toUpperCase() === uTagName) results.push(node);
3111 return results;
3112 } else return root.getElementsByTagName(tagName);
3113 },
3114
3115 id: function(nodes, root, id, combinator) {
3116 var targetNode = $(id), h = Selector.handlers;
3117 if (!targetNode) return [];
3118 if (!nodes && root == document) return [targetNode];
3119 if (nodes) {
3120 if (combinator) {
3121 if (combinator == 'child') {
3122 for (var i = 0, node; node = nodes[i]; i++)
3123 if (targetNode.parentNode == node) return [targetNode];
3124 } else if (combinator == 'descendant') {
3125 for (var i = 0, node; node = nodes[i]; i++)
3126 if (Element.descendantOf(targetNode, node)) return [targetNode];
3127 } else if (combinator == 'adjacent') {
3128 for (var i = 0, node; node = nodes[i]; i++)
3129 if (Selector.handlers.previousElementSibling(targetNode) == node)
3130 return [targetNode];
3131 } else nodes = h[combinator](nodes);
3132 }
3133 for (var i = 0, node; node = nodes[i]; i++)
3134 if (node == targetNode) return [targetNode];
3135 return [];
3136 }
3137 return (targetNode && Element.descendantOf(targetNode, root)) ? [targetNode] : [];
3138 },
3139
3140 className: function(nodes, root, className, combinator) {
3141 if (nodes && combinator) nodes = this[combinator](nodes);
3142 return Selector.handlers.byClassName(nodes, root, className);
3143 },
3144
3145 byClassName: function(nodes, root, className) {
3146 if (!nodes) nodes = Selector.handlers.descendant([root]);
3147 var needle = ' ' + className + ' ';
3148 for (var i = 0, results = [], node, nodeClassName; node = nodes[i]; i++) {
3149 nodeClassName = node.className;
3150 if (nodeClassName.length == 0) continue;
3151 if (nodeClassName == className || (' ' + nodeClassName + ' ').include(needle))
3152 results.push(node);
3153 }
3154 return results;
3155 },
3156
3157 attrPresence: function(nodes, root, attr, combinator) {
3158 if (!nodes) nodes = root.getElementsByTagName("*");
3159 if (nodes && combinator) nodes = this[combinator](nodes);
3160 var results = [];
3161 for (var i = 0, node; node = nodes[i]; i++)
3162 if (Element.hasAttribute(node, attr)) results.push(node);
3163 return results;
3164 },
3165
3166 attr: function(nodes, root, attr, value, operator, combinator) {
3167 if (!nodes) nodes = root.getElementsByTagName("*");
3168 if (nodes && combinator) nodes = this[combinator](nodes);
3169 var handler = Selector.operators[operator], results = [];
3170 for (var i = 0, node; node = nodes[i]; i++) {
3171 var nodeValue = Element.readAttribute(node, attr);
3172 if (nodeValue === null) continue;
3173 if (handler(nodeValue, value)) results.push(node);
3174 }
3175 return results;
3176 },
3177
3178 pseudo: function(nodes, name, value, root, combinator) {
3179 if (nodes && combinator) nodes = this[combinator](nodes);
3180 if (!nodes) nodes = root.getElementsByTagName("*");
3181 return Selector.pseudos[name](nodes, value, root);
3182 }
3183 },
3184
3185 pseudos: {
3186 'first-child': function(nodes, value, root) {
3187 for (var i = 0, results = [], node; node = nodes[i]; i++) {
3188 if (Selector.handlers.previousElementSibling(node)) continue;
3189 results.push(node);
3190 }
3191 return results;
3192 },
3193 'last-child': function(nodes, value, root) {
3194 for (var i = 0, results = [], node; node = nodes[i]; i++) {
3195 if (Selector.handlers.nextElementSibling(node)) continue;
3196 results.push(node);
3197 }
3198 return results;
3199 },
3200 'only-child': function(nodes, value, root) {
3201 var h = Selector.handlers;
3202 for (var i = 0, results = [], node; node = nodes[i]; i++)
3203 if (!h.previousElementSibling(node) && !h.nextElementSibling(node))
3204 results.push(node);
3205 return results;
3206 },
3207 'nth-child': function(nodes, formula, root) {
3208 return Selector.pseudos.nth(nodes, formula, root);
3209 },
3210 'nth-last-child': function(nodes, formula, root) {
3211 return Selector.pseudos.nth(nodes, formula, root, true);
3212 },
3213 'nth-of-type': function(nodes, formula, root) {
3214 return Selector.pseudos.nth(nodes, formula, root, false, true);
3215 },
3216 'nth-last-of-type': function(nodes, formula, root) {
3217 return Selector.pseudos.nth(nodes, formula, root, true, true);
3218 },
3219 'first-of-type': function(nodes, formula, root) {
3220 return Selector.pseudos.nth(nodes, "1", root, false, true);
3221 },
3222 'last-of-type': function(nodes, formula, root) {
3223 return Selector.pseudos.nth(nodes, "1", root, true, true);
3224 },
3225 'only-of-type': function(nodes, formula, root) {
3226 var p = Selector.pseudos;
3227 return p['last-of-type'](p['first-of-type'](nodes, formula, root), formula, root);
3228 },
3229
3230 // handles the an+b logic
3231 getIndices: function(a, b, total) {
3232 if (a == 0) return b > 0 ? [b] : [];
3233 return $R(1, total).inject([], function(memo, i) {
3234 if (0 == (i - b) % a && (i - b) / a >= 0) memo.push(i);
3235 return memo;
3236 });
3237 },
3238
3239 // handles nth(-last)-child, nth(-last)-of-type, and (first|last)-of-type
3240 nth: function(nodes, formula, root, reverse, ofType) {
3241 if (nodes.length == 0) return [];
3242 if (formula == 'even') formula = '2n+0';
3243 if (formula == 'odd') formula = '2n+1';
3244 var h = Selector.handlers, results = [], indexed = [], m;
3245 h.mark(nodes);
3246 for (var i = 0, node; node = nodes[i]; i++) {
3247 if (!node.parentNode._countedByPrototype) {
3248 h.index(node.parentNode, reverse, ofType);
3249 indexed.push(node.parentNode);
3250 }
3251 }
3252 if (formula.match(/^\d+$/)) { // just a number
3253 formula = Number(formula);
3254 for (var i = 0, node; node = nodes[i]; i++)
3255 if (node.nodeIndex == formula) results.push(node);
3256 } else if (m = formula.match(/^(-?\d*)?n(([+-])(\d+))?/)) { // an+b
3257 if (m[1] == "-") m[1] = -1;
3258 var a = m[1] ? Number(m[1]) : 1;
3259 var b = m[2] ? Number(m[2]) : 0;
3260 var indices = Selector.pseudos.getIndices(a, b, nodes.length);
3261 for (var i = 0, node, l = indices.length; node = nodes[i]; i++) {
3262 for (var j = 0; j < l; j++)
3263 if (node.nodeIndex == indices[j]) results.push(node);
3264 }
3265 }
3266 h.unmark(nodes);
3267 h.unmark(indexed);
3268 return results;
3269 },
3270
3271 'empty': function(nodes, value, root) {
3272 for (var i = 0, results = [], node; node = nodes[i]; i++) {
3273 // IE treats comments as element nodes
3274 if (node.tagName == '!' || (node.firstChild && !node.innerHTML.match(/^\s*$/))) continue;
3275 results.push(node);
3276 }
3277 return results;
3278 },
3279
3280 'not': function(nodes, selector, root) {
3281 var h = Selector.handlers, selectorType, m;
3282 var exclusions = new Selector(selector).findElements(root);
3283 h.mark(exclusions);
3284 for (var i = 0, results = [], node; node = nodes[i]; i++)
3285 if (!node._countedByPrototype) results.push(node);
3286 h.unmark(exclusions);
3287 return results;
3288 },
3289
3290 'enabled': function(nodes, value, root) {
3291 for (var i = 0, results = [], node; node = nodes[i]; i++)
3292 if (!node.disabled) results.push(node);
3293 return results;
3294 },
3295
3296 'disabled': function(nodes, value, root) {
3297 for (var i = 0, results = [], node; node = nodes[i]; i++)
3298 if (node.disabled) results.push(node);
3299 return results;
3300 },
3301
3302 'checked': function(nodes, value, root) {
3303 for (var i = 0, results = [], node; node = nodes[i]; i++)
3304 if (node.checked) results.push(node);
3305 return results;
3306 }
3307 },
3308
3309 operators: {
3310 '=': function(nv, v) { return nv == v; },
3311 '!=': function(nv, v) { return nv != v; },
3312 '^=': function(nv, v) { return nv.startsWith(v); },
3313 '$=': function(nv, v) { return nv.endsWith(v); },
3314 '*=': function(nv, v) { return nv.include(v); },
3315 '~=': function(nv, v) { return (' ' + nv + ' ').include(' ' + v + ' '); },
3316 '|=': function(nv, v) { return ('-' + nv.toUpperCase() + '-').include('-' + v.toUpperCase() + '-'); }
3317 },
3318
3319 split: function(expression) {
3320 var expressions = [];
3321 expression.scan(/(([\w#:.~>+()\s-]+|\*|\[.*?\])+)\s*(,|$)/, function(m) {
3322 expressions.push(m[1].strip());
3323 });
3324 return expressions;
3325 },
3326
3327 matchElements: function(elements, expression) {
3328 var matches = $$(expression), h = Selector.handlers;
3329 h.mark(matches);
3330 for (var i = 0, results = [], element; element = elements[i]; i++)
3331 if (element._countedByPrototype) results.push(element);
3332 h.unmark(matches);
3333 return results;
3334 },
3335
3336 findElement: function(elements, expression, index) {
3337 if (Object.isNumber(expression)) {
3338 index = expression; expression = false;
3339 }
3340 return Selector.matchElements(elements, expression || '*')[index || 0];
3341 },
3342
3343 findChildElements: function(element, expressions) {
3344 expressions = Selector.split(expressions.join(','));
3345 var results = [], h = Selector.handlers;
3346 for (var i = 0, l = expressions.length, selector; i < l; i++) {
3347 selector = new Selector(expressions[i].strip());
3348 h.concat(results, selector.findElements(element));
3349 }
3350 return (l > 1) ? h.unique(results) : results;
3351 }
3352});
3353
3354if (Prototype.Browser.IE) {
3355 Object.extend(Selector.handlers, {
3356 // IE returns comment nodes on getElementsByTagName("*").
3357 // Filter them out.
3358 concat: function(a, b) {
3359 for (var i = 0, node; node = b[i]; i++)
3360 if (node.tagName !== "!") a.push(node);
3361 return a;
3362 },
3363
3364 // IE improperly serializes _countedByPrototype in (inner|outer)HTML.
3365 unmark: function(nodes) {
3366 for (var i = 0, node; node = nodes[i]; i++)
3367 node.removeAttribute('_countedByPrototype');
3368 return nodes;
3369 }
3370 });
3371}
3372
3373function $$() {
3374 return Selector.findChildElements(document, $A(arguments));
3375}
3376var Form = {
3377 reset: function(form) {
3378 $(form).reset();
3379 return form;
3380 },
3381
3382 serializeElements: function(elements, options) {
3383 if (typeof options != 'object') options = { hash: !!options };
3384 else if (Object.isUndefined(options.hash)) options.hash = true;
3385 var key, value, submitted = false, submit = options.submit;
3386
3387 var data = elements.inject({ }, function(result, element) {
3388 if (!element.disabled && element.name) {
3389 key = element.name; value = $(element).getValue();
3390 if (value != null && (element.type != 'submit' || (!submitted &&
3391 submit !== false && (!submit || key == submit) && (submitted = true)))) {
3392 if (key in result) {
3393 // a key is already present; construct an array of values
3394 if (!Object.isArray(result[key])) result[key] = [result[key]];
3395 result[key].push(value);
3396 }
3397 else result[key] = value;
3398 }
3399 }
3400 return result;
3401 });
3402
3403 return options.hash ? data : Object.toQueryString(data);
3404 }
3405};
3406
3407Form.Methods = {
3408 serialize: function(form, options) {
3409 return Form.serializeElements(Form.getElements(form), options);
3410 },
3411
3412 getElements: function(form) {
3413 return $A($(form).getElementsByTagName('*')).inject([],
3414 function(elements, child) {
3415 if (Form.Element.Serializers[child.tagName.toLowerCase()])
3416 elements.push(Element.extend(child));
3417 return elements;
3418 }
3419 );
3420 },
3421
3422 getInputs: function(form, typeName, name) {
3423 form = $(form);
3424 var inputs = form.getElementsByTagName('input');
3425
3426 if (!typeName && !name) return $A(inputs).map(Element.extend);
3427
3428 for (var i = 0, matchingInputs = [], length = inputs.length; i < length; i++) {
3429 var input = inputs[i];
3430 if ((typeName && input.type != typeName) || (name && input.name != name))
3431 continue;
3432 matchingInputs.push(Element.extend(input));
3433 }
3434
3435 return matchingInputs;
3436 },
3437
3438 disable: function(form) {
3439 form = $(form);
3440 Form.getElements(form).invoke('disable');
3441 return form;
3442 },
3443
3444 enable: function(form) {
3445 form = $(form);
3446 Form.getElements(form).invoke('enable');
3447 return form;
3448 },
3449
3450 findFirstElement: function(form) {
3451 var elements = $(form).getElements().findAll(function(element) {
3452 return 'hidden' != element.type && !element.disabled;
3453 });
3454 var firstByIndex = elements.findAll(function(element) {
3455 return element.hasAttribute('tabIndex') && element.tabIndex >= 0;
3456 }).sortBy(function(element) { return element.tabIndex }).first();
3457
3458 return firstByIndex ? firstByIndex : elements.find(function(element) {
3459 return ['input', 'select', 'textarea'].include(element.tagName.toLowerCase());
3460 });
3461 },
3462
3463 focusFirstElement: function(form) {
3464 form = $(form);
3465 form.findFirstElement().activate();
3466 return form;
3467 },
3468
3469 request: function(form, options) {
3470 form = $(form), options = Object.clone(options || { });
3471
3472 var params = options.parameters, action = form.readAttribute('action') || '';
3473 if (action.blank()) action = window.location.href;
3474 options.parameters = form.serialize(true);
3475
3476 if (params) {
3477 if (Object.isString(params)) params = params.toQueryParams();
3478 Object.extend(options.parameters, params);
3479 }
3480
3481 if (form.hasAttribute('method') && !options.method)
3482 options.method = form.method;
3483
3484 return new Ajax.Request(action, options);
3485 }
3486};
3487
3488/*--------------------------------------------------------------------------*/
3489
3490Form.Element = {
3491 focus: function(element) {
3492 $(element).focus();
3493 return element;
3494 },
3495
3496 select: function(element) {
3497 $(element).select();
3498 return element;
3499 }
3500};
3501
3502Form.Element.Methods = {
3503 serialize: function(element) {
3504 element = $(element);
3505 if (!element.disabled && element.name) {
3506 var value = element.getValue();
3507 if (value != undefined) {
3508 var pair = { };
3509 pair[element.name] = value;
3510 return Object.toQueryString(pair);
3511 }
3512 }
3513 return '';
3514 },
3515
3516 getValue: function(element) {
3517 element = $(element);
3518 var method = element.tagName.toLowerCase();
3519 return Form.Element.Serializers[method](element);
3520 },
3521
3522 setValue: function(element, value) {
3523 element = $(element);
3524 var method = element.tagName.toLowerCase();
3525 Form.Element.Serializers[method](element, value);
3526 return element;
3527 },
3528
3529 clear: function(element) {
3530 $(element).value = '';
3531 return element;
3532 },
3533
3534 present: function(element) {
3535 return $(element).value != '';
3536 },
3537
3538 activate: function(element) {
3539 element = $(element);
3540 try {
3541 element.focus();
3542 if (element.select && (element.tagName.toLowerCase() != 'input' ||
3543 !['button', 'reset', 'submit'].include(element.type)))
3544 element.select();
3545 } catch (e) { }
3546 return element;
3547 },
3548
3549 disable: function(element) {
3550 element = $(element);
3551 element.blur();
3552 element.disabled = true;
3553 return element;
3554 },
3555
3556 enable: function(element) {
3557 element = $(element);
3558 element.disabled = false;
3559 return element;
3560 }
3561};
3562
3563/*--------------------------------------------------------------------------*/
3564
3565var Field = Form.Element;
3566var $F = Form.Element.Methods.getValue;
3567
3568/*--------------------------------------------------------------------------*/
3569
3570Form.Element.Serializers = {
3571 input: function(element, value) {
3572 switch (element.type.toLowerCase()) {
3573 case 'checkbox':
3574 case 'radio':
3575 return Form.Element.Serializers.inputSelector(element, value);
3576 default:
3577 return Form.Element.Serializers.textarea(element, value);
3578 }
3579 },
3580
3581 inputSelector: function(element, value) {
3582 if (Object.isUndefined(value)) return element.checked ? element.value : null;
3583 else element.checked = !!value;
3584 },
3585
3586 textarea: function(element, value) {
3587 if (Object.isUndefined(value)) return element.value;
3588 else element.value = value;
3589 },
3590
3591 select: function(element, index) {
3592 if (Object.isUndefined(index))
3593 return this[element.type == 'select-one' ?
3594 'selectOne' : 'selectMany'](element);
3595 else {
3596 var opt, value, single = !Object.isArray(index);
3597 for (var i = 0, length = element.length; i < length; i++) {
3598 opt = element.options[i];
3599 value = this.optionValue(opt);
3600 if (single) {
3601 if (value == index) {
3602 opt.selected = true;
3603 return;
3604 }
3605 }
3606 else opt.selected = index.include(value);
3607 }
3608 }
3609 },
3610
3611 selectOne: function(element) {
3612 var index = element.selectedIndex;
3613 return index >= 0 ? this.optionValue(element.options[index]) : null;
3614 },
3615
3616 selectMany: function(element) {
3617 var values, length = element.length;
3618 if (!length) return null;
3619
3620 for (var i = 0, values = []; i < length; i++) {
3621 var opt = element.options[i];
3622 if (opt.selected) values.push(this.optionValue(opt));
3623 }
3624 return values;
3625 },
3626
3627 optionValue: function(opt) {
3628 // extend element because hasAttribute may not be native
3629 return Element.extend(opt).hasAttribute('value') ? opt.value : opt.text;
3630 }
3631};
3632
3633/*--------------------------------------------------------------------------*/
3634
3635Abstract.TimedObserver = Class.create(PeriodicalExecuter, {
3636 initialize: function($super, element, frequency, callback) {
3637 $super(callback, frequency);
3638 this.element = $(element);
3639 this.lastValue = this.getValue();
3640 },
3641
3642 execute: function() {
3643 var value = this.getValue();
3644 if (Object.isString(this.lastValue) && Object.isString(value) ?
3645 this.lastValue != value : String(this.lastValue) != String(value)) {
3646 this.callback(this.element, value);
3647 this.lastValue = value;
3648 }
3649 }
3650});
3651
3652Form.Element.Observer = Class.create(Abstract.TimedObserver, {
3653 getValue: function() {
3654 return Form.Element.getValue(this.element);
3655 }
3656});
3657
3658Form.Observer = Class.create(Abstract.TimedObserver, {
3659 getValue: function() {
3660 return Form.serialize(this.element);
3661 }
3662});
3663
3664/*--------------------------------------------------------------------------*/
3665
3666Abstract.EventObserver = Class.create({
3667 initialize: function(element, callback) {
3668 this.element = $(element);
3669 this.callback = callback;
3670
3671 this.lastValue = this.getValue();
3672 if (this.element.tagName.toLowerCase() == 'form')
3673 this.registerFormCallbacks();
3674 else
3675 this.registerCallback(this.element);
3676 },
3677
3678 onElementEvent: function() {
3679 var value = this.getValue();
3680 if (this.lastValue != value) {
3681 this.callback(this.element, value);
3682 this.lastValue = value;
3683 }
3684 },
3685
3686 registerFormCallbacks: function() {
3687 Form.getElements(this.element).each(this.registerCallback, this);
3688 },
3689
3690 registerCallback: function(element) {
3691 if (element.type) {
3692 switch (element.type.toLowerCase()) {
3693 case 'checkbox':
3694 case 'radio':
3695 Event.observe(element, 'click', this.onElementEvent.bind(this));
3696 break;
3697 default:
3698 Event.observe(element, 'change', this.onElementEvent.bind(this));
3699 break;
3700 }
3701 }
3702 }
3703});
3704
3705Form.Element.EventObserver = Class.create(Abstract.EventObserver, {
3706 getValue: function() {
3707 return Form.Element.getValue(this.element);
3708 }
3709});
3710
3711Form.EventObserver = Class.create(Abstract.EventObserver, {
3712 getValue: function() {
3713 return Form.serialize(this.element);
3714 }
3715});
3716if (!window.Event) var Event = { };
3717
3718Object.extend(Event, {
3719 KEY_BACKSPACE: 8,
3720 KEY_TAB: 9,
3721 KEY_RETURN: 13,
3722 KEY_ESC: 27,
3723 KEY_LEFT: 37,
3724 KEY_UP: 38,
3725 KEY_RIGHT: 39,
3726 KEY_DOWN: 40,
3727 KEY_DELETE: 46,
3728 KEY_HOME: 36,
3729 KEY_END: 35,
3730 KEY_PAGEUP: 33,
3731 KEY_PAGEDOWN: 34,
3732 KEY_INSERT: 45,
3733
3734 cache: { },
3735
3736 relatedTarget: function(event) {
3737 var element;
3738 switch(event.type) {
3739 case 'mouseover': element = event.fromElement; break;
3740 case 'mouseout': element = event.toElement; break;
3741 default: return null;
3742 }
3743 return Element.extend(element);
3744 }
3745});
3746
3747Event.Methods = (function() {
3748 var isButton;
3749
3750 if (Prototype.Browser.IE) {
3751 var buttonMap = { 0: 1, 1: 4, 2: 2 };
3752 isButton = function(event, code) {
3753 return event.button == buttonMap[code];
3754 };
3755
3756 } else if (Prototype.Browser.WebKit) {
3757 isButton = function(event, code) {
3758 switch (code) {
3759 case 0: return event.which == 1 && !event.metaKey;
3760 case 1: return event.which == 1 && event.metaKey;
3761 default: return false;
3762 }
3763 };
3764
3765 } else {
3766 isButton = function(event, code) {
3767 return event.which ? (event.which === code + 1) : (event.button === code);
3768 };
3769 }
3770
3771 return {
3772 isLeftClick: function(event) { return isButton(event, 0) },
3773 isMiddleClick: function(event) { return isButton(event, 1) },
3774 isRightClick: function(event) { return isButton(event, 2) },
3775
3776 element: function(event) {
3777 var node = Event.extend(event).target;
3778 return Element.extend(node.nodeType == Node.TEXT_NODE ? node.parentNode : node);
3779 },
3780
3781 findElement: function(event, expression) {
3782 var element = Event.element(event);
3783 if (!expression) return element;
3784 var elements = [element].concat(element.ancestors());
3785 return Selector.findElement(elements, expression, 0);
3786 },
3787
3788 pointer: function(event) {
3789 return {
3790 x: event.pageX || (event.clientX +
3791 (document.documentElement.scrollLeft || document.body.scrollLeft)),
3792 y: event.pageY || (event.clientY +
3793 (document.documentElement.scrollTop || document.body.scrollTop))
3794 };
3795 },
3796
3797 pointerX: function(event) { return Event.pointer(event).x },
3798 pointerY: function(event) { return Event.pointer(event).y },
3799
3800 stop: function(event) {
3801 Event.extend(event);
3802 event.preventDefault();
3803 event.stopPropagation();
3804 event.stopped = true;
3805 }
3806 };
3807})();
3808
3809Event.extend = (function() {
3810 var methods = Object.keys(Event.Methods).inject({ }, function(m, name) {
3811 m[name] = Event.Methods[name].methodize();
3812 return m;
3813 });
3814
3815 if (Prototype.Browser.IE) {
3816 Object.extend(methods, {
3817 stopPropagation: function() { this.cancelBubble = true },
3818 preventDefault: function() { this.returnValue = false },
3819 inspect: function() { return "[object Event]" }
3820 });
3821
3822 return function(event) {
3823 if (!event) return false;
3824 if (event._extendedByPrototype) return event;
3825
3826 event._extendedByPrototype = Prototype.emptyFunction;
3827 var pointer = Event.pointer(event);
3828 Object.extend(event, {
3829 target: event.srcElement,
3830 relatedTarget: Event.relatedTarget(event),
3831 pageX: pointer.x,
3832 pageY: pointer.y
3833 });
3834 return Object.extend(event, methods);
3835 };
3836
3837 } else {
3838 Event.prototype = Event.prototype || document.createEvent("HTMLEvents").__proto__;
3839 Object.extend(Event.prototype, methods);
3840 return Prototype.K;
3841 }
3842})();
3843
3844Object.extend(Event, (function() {
3845 var cache = Event.cache;
3846
3847 function getEventID(element) {
3848 if (element._prototypeEventID) return element._prototypeEventID[0];
3849 arguments.callee.id = arguments.callee.id || 1;
3850 return element._prototypeEventID = [++arguments.callee.id];
3851 }
3852
3853 function getDOMEventName(eventName) {
3854 if (eventName && eventName.include(':')) return "dataavailable";
3855 return eventName;
3856 }
3857
3858 function getCacheForID(id) {
3859 return cache[id] = cache[id] || { };
3860 }
3861
3862 function getWrappersForEventName(id, eventName) {
3863 var c = getCacheForID(id);
3864 return c[eventName] = c[eventName] || [];
3865 }
3866
3867 function createWrapper(element, eventName, handler) {
3868 var id = getEventID(element);
3869 var c = getWrappersForEventName(id, eventName);
3870 if (c.pluck("handler").include(handler)) return false;
3871
3872 var wrapper = function(event) {
3873 if (!Event || !Event.extend ||
3874 (event.eventName && event.eventName != eventName))
3875 return false;
3876
3877 Event.extend(event);
3878 handler.call(element, event);
3879 };
3880
3881 wrapper.handler = handler;
3882 c.push(wrapper);
3883 return wrapper;
3884 }
3885
3886 function findWrapper(id, eventName, handler) {
3887 var c = getWrappersForEventName(id, eventName);
3888 return c.find(function(wrapper) { return wrapper.handler == handler });
3889 }
3890
3891 function destroyWrapper(id, eventName, handler) {
3892 var c = getCacheForID(id);
3893 if (!c[eventName]) return false;
3894 c[eventName] = c[eventName].without(findWrapper(id, eventName, handler));
3895 }
3896
3897 function destroyCache() {
3898 for (var id in cache)
3899 for (var eventName in cache[id])
3900 cache[id][eventName] = null;
3901 }
3902
3903 if (window.attachEvent) {
3904 window.attachEvent("onunload", destroyCache);
3905 }
3906
3907 return {
3908 observe: function(element, eventName, handler) {
3909 element = $(element);
3910 var name = getDOMEventName(eventName);
3911
3912 var wrapper = createWrapper(element, eventName, handler);
3913 if (!wrapper) return element;
3914
3915 if (element.addEventListener) {
3916 element.addEventListener(name, wrapper, false);
3917 } else {
3918 element.attachEvent("on" + name, wrapper);
3919 }
3920
3921 return element;
3922 },
3923
3924 stopObserving: function(element, eventName, handler) {
3925 element = $(element);
3926 var id = getEventID(element), name = getDOMEventName(eventName);
3927
3928 if (!handler && eventName) {
3929 getWrappersForEventName(id, eventName).each(function(wrapper) {
3930 element.stopObserving(eventName, wrapper.handler);
3931 });
3932 return element;
3933
3934 } else if (!eventName) {
3935 Object.keys(getCacheForID(id)).each(function(eventName) {
3936 element.stopObserving(eventName);
3937 });
3938 return element;
3939 }
3940
3941 var wrapper = findWrapper(id, eventName, handler);
3942 if (!wrapper) return element;
3943
3944 if (element.removeEventListener) {
3945 element.removeEventListener(name, wrapper, false);
3946 } else {
3947 element.detachEvent("on" + name, wrapper);
3948 }
3949
3950 destroyWrapper(id, eventName, handler);
3951
3952 return element;
3953 },
3954
3955 fire: function(element, eventName, memo) {
3956 element = $(element);
3957 if (element == document && document.createEvent && !element.dispatchEvent)
3958 element = document.documentElement;
3959
3960 var event;
3961 if (document.createEvent) {
3962 event = document.createEvent("HTMLEvents");
3963 event.initEvent("dataavailable", true, true);
3964 } else {
3965 event = document.createEventObject();
3966 event.eventType = "ondataavailable";
3967 }
3968
3969 event.eventName = eventName;
3970 event.memo = memo || { };
3971
3972 if (document.createEvent) {
3973 element.dispatchEvent(event);
3974 } else {
3975 element.fireEvent(event.eventType, event);
3976 }
3977
3978 return Event.extend(event);
3979 }
3980 };
3981})());
3982
3983Object.extend(Event, Event.Methods);
3984
3985Element.addMethods({
3986 fire: Event.fire,
3987 observe: Event.observe,
3988 stopObserving: Event.stopObserving
3989});
3990
3991Object.extend(document, {
3992 fire: Element.Methods.fire.methodize(),
3993 observe: Element.Methods.observe.methodize(),
3994 stopObserving: Element.Methods.stopObserving.methodize(),
3995 loaded: false
3996});
3997
3998(function() {
3999 /* Support for the DOMContentLoaded event is based on work by Dan Webb,
4000 Matthias Miller, Dean Edwards and John Resig. */
4001
4002 var timer;
4003
4004 function fireContentLoadedEvent() {
4005 if (document.loaded) return;
4006 if (timer) window.clearInterval(timer);
4007 document.fire("dom:loaded");
4008 document.loaded = true;
4009 }
4010
4011 if (document.addEventListener) {
4012 if (Prototype.Browser.WebKit) {
4013 timer = window.setInterval(function() {
4014 if (/loaded|complete/.test(document.readyState))
4015 fireContentLoadedEvent();
4016 }, 0);
4017
4018 Event.observe(window, "load", fireContentLoadedEvent);
4019
4020 } else {
4021 document.addEventListener("DOMContentLoaded",
4022 fireContentLoadedEvent, false);
4023 }
4024
4025 } else {
4026 document.write("<script id=__onDOMContentLoaded defer src=//:><\/script>");
4027 $("__onDOMContentLoaded").onreadystatechange = function() {
4028 if (this.readyState == "complete") {
4029 this.onreadystatechange = null;
4030 fireContentLoadedEvent();
4031 }
4032 };
4033 }
4034})();
4035/*------------------------------- DEPRECATED -------------------------------*/
4036
4037Hash.toQueryString = Object.toQueryString;
4038
4039var Toggle = { display: Element.toggle };
4040
4041Element.Methods.childOf = Element.Methods.descendantOf;
4042
4043var Insertion = {
4044 Before: function(element, content) {
4045 return Element.insert(element, {before:content});
4046 },
4047
4048 Top: function(element, content) {
4049 return Element.insert(element, {top:content});
4050 },
4051
4052 Bottom: function(element, content) {
4053 return Element.insert(element, {bottom:content});
4054 },
4055
4056 After: function(element, content) {
4057 return Element.insert(element, {after:content});
4058 }
4059};
4060
4061var $continue = new Error('"throw $continue" is deprecated, use "return" instead');
4062
4063// This should be moved to script.aculo.us; notice the deprecated methods
4064// further below, that map to the newer Element methods.
4065var Position = {
4066 // set to true if needed, warning: firefox performance problems
4067 // NOT neeeded for page scrolling, only if draggable contained in
4068 // scrollable elements
4069 includeScrollOffsets: false,
4070
4071 // must be called before calling withinIncludingScrolloffset, every time the
4072 // page is scrolled
4073 prepare: function() {
4074 this.deltaX = window.pageXOffset
4075 || document.documentElement.scrollLeft
4076 || document.body.scrollLeft
4077 || 0;
4078 this.deltaY = window.pageYOffset
4079 || document.documentElement.scrollTop
4080 || document.body.scrollTop
4081 || 0;
4082 },
4083
4084 // caches x/y coordinate pair to use with overlap
4085 within: function(element, x, y) {
4086 if (this.includeScrollOffsets)
4087 return this.withinIncludingScrolloffsets(element, x, y);
4088 this.xcomp = x;
4089 this.ycomp = y;
4090 this.offset = Element.cumulativeOffset(element);
4091
4092 return (y >= this.offset[1] &&
4093 y < this.offset[1] + element.offsetHeight &&
4094 x >= this.offset[0] &&
4095 x < this.offset[0] + element.offsetWidth);
4096 },
4097
4098 withinIncludingScrolloffsets: function(element, x, y) {
4099 var offsetcache = Element.cumulativeScrollOffset(element);
4100
4101 this.xcomp = x + offsetcache[0] - this.deltaX;
4102 this.ycomp = y + offsetcache[1] - this.deltaY;
4103 this.offset = Element.cumulativeOffset(element);
4104
4105 return (this.ycomp >= this.offset[1] &&
4106 this.ycomp < this.offset[1] + element.offsetHeight &&
4107 this.xcomp >= this.offset[0] &&
4108 this.xcomp < this.offset[0] + element.offsetWidth);
4109 },
4110
4111 // within must be called directly before
4112 overlap: function(mode, element) {
4113 if (!mode) return 0;
4114 if (mode == 'vertical')
4115 return ((this.offset[1] + element.offsetHeight) - this.ycomp) /
4116 element.offsetHeight;
4117 if (mode == 'horizontal')
4118 return ((this.offset[0] + element.offsetWidth) - this.xcomp) /
4119 element.offsetWidth;
4120 },
4121
4122 // Deprecation layer -- use newer Element methods now (1.5.2).
4123
4124 cumulativeOffset: Element.Methods.cumulativeOffset,
4125
4126 positionedOffset: Element.Methods.positionedOffset,
4127
4128 absolutize: function(element) {
4129 Position.prepare();
4130 return Element.absolutize(element);
4131 },
4132
4133 relativize: function(element) {
4134 Position.prepare();
4135 return Element.relativize(element);
4136 },
4137
4138 realOffset: Element.Methods.cumulativeScrollOffset,
4139
4140 offsetParent: Element.Methods.getOffsetParent,
4141
4142 page: Element.Methods.viewportOffset,
4143
4144 clone: function(source, target, options) {
4145 options = options || { };
4146 return Element.clonePosition(target, source, options);
4147 }
4148};
4149
4150/*--------------------------------------------------------------------------*/
4151
4152if (!document.getElementsByClassName) document.getElementsByClassName = function(instanceMethods){
4153 function iter(name) {
4154 return name.blank() ? null : "[contains(concat(' ', @class, ' '), ' " + name + " ')]";
4155 }
4156
4157 instanceMethods.getElementsByClassName = Prototype.BrowserFeatures.XPath ?
4158 function(element, className) {
4159 className = className.toString().strip();
4160 var cond = /\s/.test(className) ? $w(className).map(iter).join('') : iter(className);
4161 return cond ? document._getElementsByXPath('.//*' + cond, element) : [];
4162 } : function(element, className) {
4163 className = className.toString().strip();
4164 var elements = [], classNames = (/\s/.test(className) ? $w(className) : null);
4165 if (!classNames && !className) return elements;
4166
4167 var nodes = $(element).getElementsByTagName('*');
4168 className = ' ' + className + ' ';
4169
4170 for (var i = 0, child, cn; child = nodes[i]; i++) {
4171 if (child.className && (cn = ' ' + child.className + ' ') && (cn.include(className) ||
4172 (classNames && classNames.all(function(name) {
4173 return !name.toString().blank() && cn.include(' ' + name + ' ');
4174 }))))
4175 elements.push(Element.extend(child));
4176 }
4177 return elements;
4178 };
4179
4180 return function(className, parentElement) {
4181 return $(parentElement || document.body).getElementsByClassName(className);
4182 };
4183}(Element.Methods);
4184
4185/*--------------------------------------------------------------------------*/
4186
4187Element.ClassNames = Class.create();
4188Element.ClassNames.prototype = {
4189 initialize: function(element) {
4190 this.element = $(element);
4191 },
4192
4193 _each: function(iterator) {
4194 this.element.className.split(/\s+/).select(function(name) {
4195 return name.length > 0;
4196 })._each(iterator);
4197 },
4198
4199 set: function(className) {
4200 this.element.className = className;
4201 },
4202
4203 add: function(classNameToAdd) {
4204 if (this.include(classNameToAdd)) return;
4205 this.set($A(this).concat(classNameToAdd).join(' '));
4206 },
4207
4208 remove: function(classNameToRemove) {
4209 if (!this.include(classNameToRemove)) return;
4210 this.set($A(this).without(classNameToRemove).join(' '));
4211 },
4212
4213 toString: function() {
4214 return $A(this).join(' ');
4215 }
4216};
4217
4218Object.extend(Element.ClassNames.prototype, Enumerable);
4219
4220/*--------------------------------------------------------------------------*/
4221
4222Element.addMethods();
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-16 02:13:05 +0000