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1 | /* Prototype JavaScript framework, version 1.4.0 |
2 | * (c) 2005 Sam Stephenson <sam@conio.net> | |
3 | * | |
4 | * Prototype is freely distributable under the terms of an MIT-style license. | |
5 | * For details, see the Prototype web site: http://prototype.conio.net/ | |
6 | * | |
7 | /*--------------------------------------------------------------------------*/ | |
8 | ||
9 | var Prototype = { | |
10 | Version: '1.4.0', | |
11 | ScriptFragment: '(?:<script.*?>)((\n|\r|.)*?)(?:<\/script>)', | |
12 | ||
13 | emptyFunction: function() {}, | |
14 | K: function(x) {return x} | |
15 | } | |
16 | ||
17 | var Class = { | |
18 | create: function() { | |
19 | return function() { | |
20 | this.initialize.apply(this, arguments); | |
21 | } | |
22 | } | |
23 | } | |
24 | ||
25 | var Abstract = new Object(); | |
26 | ||
27 | Object.extend = function(destination, source) { | |
28 | for (property in source) { | |
29 | destination[property] = source[property]; | |
30 | } | |
31 | return destination; | |
32 | } | |
33 | ||
34 | Object.inspect = function(object) { | |
35 | try { | |
36 | if (object == undefined) return 'undefined'; | |
37 | if (object == null) return 'null'; | |
38 | return object.inspect ? object.inspect() : object.toString(); | |
39 | } catch (e) { | |
40 | if (e instanceof RangeError) return '...'; | |
41 | throw e; | |
42 | } | |
43 | } | |
44 | ||
45 | Function.prototype.bind = function() { | |
46 | var __method = this, args = $A(arguments), object = args.shift(); | |
47 | return function() { | |
48 | return __method.apply(object, args.concat($A(arguments))); | |
49 | } | |
50 | } | |
51 | ||
52 | Function.prototype.bindAsEventListener = function(object) { | |
53 | var __method = this; | |
54 | return function(event) { | |
55 | return __method.call(object, event || window.event); | |
56 | } | |
57 | } | |
58 | ||
59 | Object.extend(Number.prototype, { | |
60 | toColorPart: function() { | |
61 | var digits = this.toString(16); | |
62 | if (this < 16) return '0' + digits; | |
63 | return digits; | |
64 | }, | |
65 | ||
66 | succ: function() { | |
67 | return this + 1; | |
68 | }, | |
69 | ||
70 | times: function(iterator) { | |
71 | $R(0, this, true).each(iterator); | |
72 | return this; | |
73 | } | |
74 | }); | |
75 | ||
76 | var Try = { | |
77 | these: function() { | |
78 | var returnValue; | |
79 | ||
80 | for (var i = 0; i < arguments.length; i++) { | |
81 | var lambda = arguments[i]; | |
82 | try { | |
83 | returnValue = lambda(); | |
84 | break; | |
85 | } catch (e) {} | |
86 | } | |
87 | ||
88 | return returnValue; | |
89 | } | |
90 | } | |
91 | ||
92 | /*--------------------------------------------------------------------------*/ | |
93 | ||
94 | var PeriodicalExecuter = Class.create(); | |
95 | PeriodicalExecuter.prototype = { | |
96 | initialize: function(callback, frequency) { | |
97 | this.callback = callback; | |
98 | this.frequency = frequency; | |
99 | this.currentlyExecuting = false; | |
100 | ||
101 | this.registerCallback(); | |
102 | }, | |
103 | ||
104 | registerCallback: function() { | |
105 | setInterval(this.onTimerEvent.bind(this), this.frequency * 1000); | |
106 | }, | |
107 | ||
108 | onTimerEvent: function() { | |
109 | if (!this.currentlyExecuting) { | |
110 | try { | |
111 | this.currentlyExecuting = true; | |
112 | this.callback(); | |
113 | } finally { | |
114 | this.currentlyExecuting = false; | |
115 | } | |
116 | } | |
117 | } | |
118 | } | |
119 | ||
120 | /*--------------------------------------------------------------------------*/ | |
121 | ||
122 | function $() { | |
123 | var elements = new Array(); | |
124 | ||
125 | for (var i = 0; i < arguments.length; i++) { | |
126 | var element = arguments[i]; | |
127 | if (typeof element == 'string') | |
128 | element = document.getElementById(element); | |
129 | ||
130 | if (arguments.length == 1) | |
131 | return element; | |
132 | ||
133 | elements.push(element); | |
134 | } | |
135 | ||
136 | return elements; | |
137 | } | |
138 | Object.extend(String.prototype, { | |
139 | stripTags: function() { | |
140 | return this.replace(/<\/?[^>]+>/gi, ''); | |
141 | }, | |
142 | ||
143 | stripScripts: function() { | |
144 | return this.replace(new RegExp(Prototype.ScriptFragment, 'img'), ''); | |
145 | }, | |
146 | ||
147 | extractScripts: function() { | |
148 | var matchAll = new RegExp(Prototype.ScriptFragment, 'img'); | |
149 | var matchOne = new RegExp(Prototype.ScriptFragment, 'im'); | |
150 | return (this.match(matchAll) || []).map(function(scriptTag) { | |
151 | return (scriptTag.match(matchOne) || ['', ''])[1]; | |
152 | }); | |
153 | }, | |
154 | ||
155 | evalScripts: function() { | |
156 | return this.extractScripts().map(eval); | |
157 | }, | |
158 | ||
159 | escapeHTML: function() { | |
160 | var div = document.createElement('div'); | |
161 | var text = document.createTextNode(this); | |
162 | div.appendChild(text); | |
163 | return div.innerHTML; | |
164 | }, | |
165 | ||
166 | unescapeHTML: function() { | |
167 | var div = document.createElement('div'); | |
168 | div.innerHTML = this.stripTags(); | |
169 | return div.childNodes[0] ? div.childNodes[0].nodeValue : ''; | |
170 | }, | |
171 | ||
172 | toQueryParams: function() { | |
173 | var pairs = this.match(/^\??(.*)$/)[1].split('&'); | |
174 | return pairs.inject({}, function(params, pairString) { | |
175 | var pair = pairString.split('='); | |
176 | params[pair[0]] = pair[1]; | |
177 | return params; | |
178 | }); | |
179 | }, | |
180 | ||
181 | toArray: function() { | |
182 | return this.split(''); | |
183 | }, | |
184 | ||
185 | camelize: function() { | |
186 | var oStringList = this.split('-'); | |
187 | if (oStringList.length == 1) return oStringList[0]; | |
188 | ||
189 | var camelizedString = this.indexOf('-') == 0 | |
190 | ? oStringList[0].charAt(0).toUpperCase() + oStringList[0].substring(1) | |
191 | : oStringList[0]; | |
192 | ||
193 | for (var i = 1, len = oStringList.length; i < len; i++) { | |
194 | var s = oStringList[i]; | |
195 | camelizedString += s.charAt(0).toUpperCase() + s.substring(1); | |
196 | } | |
197 | ||
198 | return camelizedString; | |
199 | }, | |
200 | ||
201 | inspect: function() { | |
202 | return "'" + this.replace('\\', '\\\\').replace("'", '\\\'') + "'"; | |
203 | } | |
204 | }); | |
205 | ||
206 | String.prototype.parseQuery = String.prototype.toQueryParams; | |
207 | ||
208 | var $break = new Object(); | |
209 | var $continue = new Object(); | |
210 | ||
211 | var Enumerable = { | |
212 | each: function(iterator) { | |
213 | var index = 0; | |
214 | try { | |
215 | this._each(function(value) { | |
216 | try { | |
217 | iterator(value, index++); | |
218 | } catch (e) { | |
219 | if (e != $continue) throw e; | |
220 | } | |
221 | }); | |
222 | } catch (e) { | |
223 | if (e != $break) throw e; | |
224 | } | |
225 | }, | |
226 | ||
227 | all: function(iterator) { | |
228 | var result = true; | |
229 | this.each(function(value, index) { | |
230 | result = result && !!(iterator || Prototype.K)(value, index); | |
231 | if (!result) throw $break; | |
232 | }); | |
233 | return result; | |
234 | }, | |
235 | ||
236 | any: function(iterator) { | |
237 | var result = true; | |
238 | this.each(function(value, index) { | |
239 | if (result = !!(iterator || Prototype.K)(value, index)) | |
240 | throw $break; | |
241 | }); | |
242 | return result; | |
243 | }, | |
244 | ||
245 | collect: function(iterator) { | |
246 | var results = []; | |
247 | this.each(function(value, index) { | |
248 | results.push(iterator(value, index)); | |
249 | }); | |
250 | return results; | |
251 | }, | |
252 | ||
253 | detect: function (iterator) { | |
254 | var result; | |
255 | this.each(function(value, index) { | |
256 | if (iterator(value, index)) { | |
257 | result = value; | |
258 | throw $break; | |
259 | } | |
260 | }); | |
261 | return result; | |
262 | }, | |
263 | ||
264 | findAll: function(iterator) { | |
265 | var results = []; | |
266 | this.each(function(value, index) { | |
267 | if (iterator(value, index)) | |
268 | results.push(value); | |
269 | }); | |
270 | return results; | |
271 | }, | |
272 | ||
273 | grep: function(pattern, iterator) { | |
274 | var results = []; | |
275 | this.each(function(value, index) { | |
276 | var stringValue = value.toString(); | |
277 | if (stringValue.match(pattern)) | |
278 | results.push((iterator || Prototype.K)(value, index)); | |
279 | }) | |
280 | return results; | |
281 | }, | |
282 | ||
283 | include: function(object) { | |
284 | var found = false; | |
285 | this.each(function(value) { | |
286 | if (value == object) { | |
287 | found = true; | |
288 | throw $break; | |
289 | } | |
290 | }); | |
291 | return found; | |
292 | }, | |
293 | ||
294 | inject: function(memo, iterator) { | |
295 | this.each(function(value, index) { | |
296 | memo = iterator(memo, value, index); | |
297 | }); | |
298 | return memo; | |
299 | }, | |
300 | ||
301 | invoke: function(method) { | |
302 | var args = $A(arguments).slice(1); | |
303 | return this.collect(function(value) { | |
304 | return value[method].apply(value, args); | |
305 | }); | |
306 | }, | |
307 | ||
308 | max: function(iterator) { | |
309 | var result; | |
310 | this.each(function(value, index) { | |
311 | value = (iterator || Prototype.K)(value, index); | |
312 | if (value >= (result || value)) | |
313 | result = value; | |
314 | }); | |
315 | return result; | |
316 | }, | |
317 | ||
318 | min: function(iterator) { | |
319 | var result; | |
320 | this.each(function(value, index) { | |
321 | value = (iterator || Prototype.K)(value, index); | |
322 | if (value <= (result || value)) | |
323 | result = value; | |
324 | }); | |
325 | return result; | |
326 | }, | |
327 | ||
328 | partition: function(iterator) { | |
329 | var trues = [], falses = []; | |
330 | this.each(function(value, index) { | |
331 | ((iterator || Prototype.K)(value, index) ? | |
332 | trues : falses).push(value); | |
333 | }); | |
334 | return [trues, falses]; | |
335 | }, | |
336 | ||
337 | pluck: function(property) { | |
338 | var results = []; | |
339 | this.each(function(value, index) { | |
340 | results.push(value[property]); | |
341 | }); | |
342 | return results; | |
343 | }, | |
344 | ||
345 | reject: function(iterator) { | |
346 | var results = []; | |
347 | this.each(function(value, index) { | |
348 | if (!iterator(value, index)) | |
349 | results.push(value); | |
350 | }); | |
351 | return results; | |
352 | }, | |
353 | ||
354 | sortBy: function(iterator) { | |
355 | return this.collect(function(value, index) { | |
356 | return {value: value, criteria: iterator(value, index)}; | |
357 | }).sort(function(left, right) { | |
358 | var a = left.criteria, b = right.criteria; | |
359 | return a < b ? -1 : a > b ? 1 : 0; | |
360 | }).pluck('value'); | |
361 | }, | |
362 | ||
363 | toArray: function() { | |
364 | return this.collect(Prototype.K); | |
365 | }, | |
366 | ||
367 | zip: function() { | |
368 | var iterator = Prototype.K, args = $A(arguments); | |
369 | if (typeof args.last() == 'function') | |
370 | iterator = args.pop(); | |
371 | ||
372 | var collections = [this].concat(args).map($A); | |
373 | return this.map(function(value, index) { | |
374 | iterator(value = collections.pluck(index)); | |
375 | return value; | |
376 | }); | |
377 | }, | |
378 | ||
379 | inspect: function() { | |
380 | return '#<Enumerable:' + this.toArray().inspect() + '>'; | |
381 | } | |
382 | } | |
383 | ||
384 | Object.extend(Enumerable, { | |
385 | map: Enumerable.collect, | |
386 | find: Enumerable.detect, | |
387 | select: Enumerable.findAll, | |
388 | member: Enumerable.include, | |
389 | entries: Enumerable.toArray | |
390 | }); | |
391 | var $A = Array.from = function(iterable) { | |
392 | if (!iterable) return []; | |
393 | if (iterable.toArray) { | |
394 | return iterable.toArray(); | |
395 | } else { | |
396 | var results = []; | |
397 | for (var i = 0; i < iterable.length; i++) | |
398 | results.push(iterable[i]); | |
399 | return results; | |
400 | } | |
401 | } | |
402 | ||
403 | Object.extend(Array.prototype, Enumerable); | |
404 | ||
405 | Array.prototype._reverse = Array.prototype.reverse; | |
406 | ||
407 | Object.extend(Array.prototype, { | |
408 | _each: function(iterator) { | |
409 | for (var i = 0; i < this.length; i++) | |
410 | iterator(this[i]); | |
411 | }, | |
412 | ||
413 | clear: function() { | |
414 | this.length = 0; | |
415 | return this; | |
416 | }, | |
417 | ||
418 | first: function() { | |
419 | return this[0]; | |
420 | }, | |
421 | ||
422 | last: function() { | |
423 | return this[this.length - 1]; | |
424 | }, | |
425 | ||
426 | compact: function() { | |
427 | return this.select(function(value) { | |
428 | return value != undefined || value != null; | |
429 | }); | |
430 | }, | |
431 | ||
432 | flatten: function() { | |
433 | return this.inject([], function(array, value) { | |
434 | return array.concat(value.constructor == Array ? | |
435 | value.flatten() : [value]); | |
436 | }); | |
437 | }, | |
438 | ||
439 | without: function() { | |
440 | var values = $A(arguments); | |
441 | return this.select(function(value) { | |
442 | return !values.include(value); | |
443 | }); | |
444 | }, | |
445 | ||
446 | indexOf: function(object) { | |
447 | for (var i = 0; i < this.length; i++) | |
448 | if (this[i] == object) return i; | |
449 | return -1; | |
450 | }, | |
451 | ||
452 | reverse: function(inline) { | |
453 | return (inline !== false ? this : this.toArray())._reverse(); | |
454 | }, | |
455 | ||
456 | shift: function() { | |
457 | var result = this[0]; | |
458 | for (var i = 0; i < this.length - 1; i++) | |
459 | this[i] = this[i + 1]; | |
460 | this.length--; | |
461 | return result; | |
462 | }, | |
463 | ||
464 | inspect: function() { | |
465 | return '[' + this.map(Object.inspect).join(', ') + ']'; | |
466 | } | |
467 | }); | |
468 | var Hash = { | |
469 | _each: function(iterator) { | |
470 | for (key in this) { | |
471 | var value = this[key]; | |
472 | if (typeof value == 'function') continue; | |
473 | ||
474 | var pair = [key, value]; | |
475 | pair.key = key; | |
476 | pair.value = value; | |
477 | iterator(pair); | |
478 | } | |
479 | }, | |
480 | ||
481 | keys: function() { | |
482 | return this.pluck('key'); | |
483 | }, | |
484 | ||
485 | values: function() { | |
486 | return this.pluck('value'); | |
487 | }, | |
488 | ||
489 | merge: function(hash) { | |
490 | return $H(hash).inject($H(this), function(mergedHash, pair) { | |
491 | mergedHash[pair.key] = pair.value; | |
492 | return mergedHash; | |
493 | }); | |
494 | }, | |
495 | ||
496 | toQueryString: function() { | |
497 | return this.map(function(pair) { | |
498 | return pair.map(encodeURIComponent).join('='); | |
499 | }).join('&'); | |
500 | }, | |
501 | ||
502 | inspect: function() { | |
503 | return '#<Hash:{' + this.map(function(pair) { | |
504 | return pair.map(Object.inspect).join(': '); | |
505 | }).join(', ') + '}>'; | |
506 | } | |
507 | } | |
508 | ||
509 | function $H(object) { | |
510 | var hash = Object.extend({}, object || {}); | |
511 | Object.extend(hash, Enumerable); | |
512 | Object.extend(hash, Hash); | |
513 | return hash; | |
514 | } | |
515 | ObjectRange = Class.create(); | |
516 | Object.extend(ObjectRange.prototype, Enumerable); | |
517 | Object.extend(ObjectRange.prototype, { | |
518 | initialize: function(start, end, exclusive) { | |
519 | this.start = start; | |
520 | this.end = end; | |
521 | this.exclusive = exclusive; | |
522 | }, | |
523 | ||
524 | _each: function(iterator) { | |
525 | var value = this.start; | |
526 | do { | |
527 | iterator(value); | |
528 | value = value.succ(); | |
529 | } while (this.include(value)); | |
530 | }, | |
531 | ||
532 | include: function(value) { | |
533 | if (value < this.start) | |
534 | return false; | |
535 | if (this.exclusive) | |
536 | return value < this.end; | |
537 | return value <= this.end; | |
538 | } | |
539 | }); | |
540 | ||
541 | var $R = function(start, end, exclusive) { | |
542 | return new ObjectRange(start, end, exclusive); | |
543 | } | |
544 | ||
545 | var Ajax = { | |
546 | getTransport: function() { | |
547 | return Try.these( | |
548 | function() {return new ActiveXObject('Msxml2.XMLHTTP')}, | |
549 | function() {return new ActiveXObject('Microsoft.XMLHTTP')}, | |
550 | function() {return new XMLHttpRequest()} | |
551 | ) || false; | |
552 | }, | |
553 | ||
554 | activeRequestCount: 0 | |
555 | } | |
556 | ||
557 | Ajax.Responders = { | |
558 | responders: [], | |
559 | ||
560 | _each: function(iterator) { | |
561 | this.responders._each(iterator); | |
562 | }, | |
563 | ||
564 | register: function(responderToAdd) { | |
565 | if (!this.include(responderToAdd)) | |
566 | this.responders.push(responderToAdd); | |
567 | }, | |
568 | ||
569 | unregister: function(responderToRemove) { | |
570 | this.responders = this.responders.without(responderToRemove); | |
571 | }, | |
572 | ||
573 | dispatch: function(callback, request, transport, json) { | |
574 | this.each(function(responder) { | |
575 | if (responder[callback] && typeof responder[callback] == 'function') { | |
576 | try { | |
577 | responder[callback].apply(responder, [request, transport, json]); | |
578 | } catch (e) {} | |
579 | } | |
580 | }); | |
581 | } | |
582 | }; | |
583 | ||
584 | Object.extend(Ajax.Responders, Enumerable); | |
585 | ||
586 | Ajax.Responders.register({ | |
587 | onCreate: function() { | |
588 | Ajax.activeRequestCount++; | |
589 | }, | |
590 | ||
591 | onComplete: function() { | |
592 | Ajax.activeRequestCount--; | |
593 | } | |
594 | }); | |
595 | ||
596 | Ajax.Base = function() {}; | |
597 | Ajax.Base.prototype = { | |
598 | setOptions: function(options) { | |
599 | this.options = { | |
600 | method: 'post', | |
601 | asynchronous: true, | |
602 | parameters: '' | |
603 | } | |
604 | Object.extend(this.options, options || {}); | |
605 | }, | |
606 | ||
607 | responseIsSuccess: function() { | |
608 | return this.transport.status == undefined | |
609 | || this.transport.status == 0 | |
610 | || (this.transport.status >= 200 && this.transport.status < 300); | |
611 | }, | |
612 | ||
613 | responseIsFailure: function() { | |
614 | return !this.responseIsSuccess(); | |
615 | } | |
616 | } | |
617 | ||
618 | Ajax.Request = Class.create(); | |
619 | Ajax.Request.Events = | |
620 | ['Uninitialized', 'Loading', 'Loaded', 'Interactive', 'Complete']; | |
621 | ||
622 | Ajax.Request.prototype = Object.extend(new Ajax.Base(), { | |
623 | initialize: function(url, options) { | |
624 | this.transport = Ajax.getTransport(); | |
625 | this.setOptions(options); | |
626 | this.request(url); | |
627 | }, | |
628 | ||
629 | request: function(url) { | |
630 | var parameters = this.options.parameters || ''; | |
631 | if (parameters.length > 0) parameters += '&_='; | |
632 | ||
633 | try { | |
634 | this.url = url; | |
635 | if (this.options.method == 'get' && parameters.length > 0) | |
636 | this.url += (this.url.match(/\?/) ? '&' : '?') + parameters; | |
637 | ||
638 | Ajax.Responders.dispatch('onCreate', this, this.transport); | |
639 | ||
640 | this.transport.open(this.options.method, this.url, | |
641 | this.options.asynchronous); | |
642 | ||
643 | if (this.options.asynchronous) { | |
644 | this.transport.onreadystatechange = this.onStateChange.bind(this); | |
645 | setTimeout((function() {this.respondToReadyState(1)}).bind(this), 10); | |
646 | } | |
647 | ||
648 | this.setRequestHeaders(); | |
649 | ||
650 | var body = this.options.postBody ? this.options.postBody : parameters; | |
651 | this.transport.send(this.options.method == 'post' ? body : null); | |
652 | ||
653 | } catch (e) { | |
654 | this.dispatchException(e); | |
655 | } | |
656 | }, | |
657 | ||
658 | setRequestHeaders: function() { | |
659 | var requestHeaders = | |
660 | ['X-Requested-With', 'XMLHttpRequest', | |
661 | 'X-Prototype-Version', Prototype.Version]; | |
662 | ||
663 | if (this.options.method == 'post') { | |
664 | requestHeaders.push('Content-type', | |
665 | 'application/x-www-form-urlencoded'); | |
666 | ||
667 | /* Force "Connection: close" for Mozilla browsers to work around | |
668 | * a bug where XMLHttpReqeuest sends an incorrect Content-length | |
669 | * header. See Mozilla Bugzilla #246651. | |
670 | */ | |
671 | if (this.transport.overrideMimeType) | |
672 | requestHeaders.push('Connection', 'close'); | |
673 | } | |
674 | ||
675 | if (this.options.requestHeaders) | |
676 | requestHeaders.push.apply(requestHeaders, this.options.requestHeaders); | |
677 | ||
678 | for (var i = 0; i < requestHeaders.length; i += 2) | |
679 | this.transport.setRequestHeader(requestHeaders[i], requestHeaders[i+1]); | |
680 | }, | |
681 | ||
682 | onStateChange: function() { | |
683 | var readyState = this.transport.readyState; | |
684 | if (readyState != 1) | |
685 | this.respondToReadyState(this.transport.readyState); | |
686 | }, | |
687 | ||
688 | header: function(name) { | |
689 | try { | |
690 | return this.transport.getResponseHeader(name); | |
691 | } catch (e) {} | |
692 | }, | |
693 | ||
694 | evalJSON: function() { | |
695 | try { | |
696 | return eval(this.header('X-JSON')); | |
697 | } catch (e) {} | |
698 | }, | |
699 | ||
700 | evalResponse: function() { | |
701 | try { | |
702 | return eval(this.transport.responseText); | |
703 | } catch (e) { | |
704 | this.dispatchException(e); | |
705 | } | |
706 | }, | |
707 | ||
708 | respondToReadyState: function(readyState) { | |
709 | var event = Ajax.Request.Events[readyState]; | |
710 | var transport = this.transport, json = this.evalJSON(); | |
711 | ||
712 | if (event == 'Complete') { | |
713 | try { | |
714 | (this.options['on' + this.transport.status] | |
715 | || this.options['on' + (this.responseIsSuccess() ? 'Success' : 'Failure')] | |
716 | || Prototype.emptyFunction)(transport, json); | |
717 | } catch (e) { | |
718 | this.dispatchException(e); | |
719 | } | |
720 | ||
721 | if ((this.header('Content-type') || '').match(/^text\/javascript/i)) | |
722 | this.evalResponse(); | |
723 | } | |
724 | ||
725 | try { | |
726 | (this.options['on' + event] || Prototype.emptyFunction)(transport, json); | |
727 | Ajax.Responders.dispatch('on' + event, this, transport, json); | |
728 | } catch (e) { | |
729 | this.dispatchException(e); | |
730 | } | |
731 | ||
732 | /* Avoid memory leak in MSIE: clean up the oncomplete event handler */ | |
733 | if (event == 'Complete') | |
734 | this.transport.onreadystatechange = Prototype.emptyFunction; | |
735 | }, | |
736 | ||
737 | dispatchException: function(exception) { | |
738 | (this.options.onException || Prototype.emptyFunction)(this, exception); | |
739 | Ajax.Responders.dispatch('onException', this, exception); | |
740 | } | |
741 | }); | |
742 | ||
743 | Ajax.Updater = Class.create(); | |
744 | ||
745 | Object.extend(Object.extend(Ajax.Updater.prototype, Ajax.Request.prototype), { | |
746 | initialize: function(container, url, options) { | |
747 | this.containers = { | |
748 | success: container.success ? $(container.success) : $(container), | |
749 | failure: container.failure ? $(container.failure) : | |
750 | (container.success ? null : $(container)) | |
751 | } | |
752 | ||
753 | this.transport = Ajax.getTransport(); | |
754 | this.setOptions(options); | |
755 | ||
756 | var onComplete = this.options.onComplete || Prototype.emptyFunction; | |
757 | this.options.onComplete = (function(transport, object) { | |
758 | this.updateContent(); | |
759 | onComplete(transport, object); | |
760 | }).bind(this); | |
761 | ||
762 | this.request(url); | |
763 | }, | |
764 | ||
765 | updateContent: function() { | |
766 | var receiver = this.responseIsSuccess() ? | |
767 | this.containers.success : this.containers.failure; | |
768 | var response = this.transport.responseText; | |
769 | ||
770 | if (!this.options.evalScripts) | |
771 | response = response.stripScripts(); | |
772 | ||
773 | if (receiver) { | |
774 | if (this.options.insertion) { | |
775 | new this.options.insertion(receiver, response); | |
776 | } else { | |
777 | Element.update(receiver, response); | |
778 | } | |
779 | } | |
780 | ||
781 | if (this.responseIsSuccess()) { | |
782 | if (this.onComplete) | |
783 | setTimeout(this.onComplete.bind(this), 10); | |
784 | } | |
785 | } | |
786 | }); | |
787 | ||
788 | Ajax.PeriodicalUpdater = Class.create(); | |
789 | Ajax.PeriodicalUpdater.prototype = Object.extend(new Ajax.Base(), { | |
790 | initialize: function(container, url, options) { | |
791 | this.setOptions(options); | |
792 | this.onComplete = this.options.onComplete; | |
793 | ||
794 | this.frequency = (this.options.frequency || 2); | |
795 | this.decay = (this.options.decay || 1); | |
796 | ||
797 | this.updater = {}; | |
798 | this.container = container; | |
799 | this.url = url; | |
800 | ||
801 | this.start(); | |
802 | }, | |
803 | ||
804 | start: function() { | |
805 | this.options.onComplete = this.updateComplete.bind(this); | |
806 | this.onTimerEvent(); | |
807 | }, | |
808 | ||
809 | stop: function() { | |
810 | this.updater.onComplete = undefined; | |
811 | clearTimeout(this.timer); | |
812 | (this.onComplete || Prototype.emptyFunction).apply(this, arguments); | |
813 | }, | |
814 | ||
815 | updateComplete: function(request) { | |
816 | if (this.options.decay) { | |
817 | this.decay = (request.responseText == this.lastText ? | |
818 | this.decay * this.options.decay : 1); | |
819 | ||
820 | this.lastText = request.responseText; | |
821 | } | |
822 | this.timer = setTimeout(this.onTimerEvent.bind(this), | |
823 | this.decay * this.frequency * 1000); | |
824 | }, | |
825 | ||
826 | onTimerEvent: function() { | |
827 | this.updater = new Ajax.Updater(this.container, this.url, this.options); | |
828 | } | |
829 | }); | |
830 | document.getElementsByClassName = function(className, parentElement) { | |
831 | var children = ($(parentElement) || document.body).getElementsByTagName('*'); | |
832 | return $A(children).inject([], function(elements, child) { | |
833 | if (child.className.match(new RegExp("(^|\\s)" + className + "(\\s|$)"))) | |
834 | elements.push(child); | |
835 | return elements; | |
836 | }); | |
837 | } | |
838 | ||
839 | /*--------------------------------------------------------------------------*/ | |
840 | ||
841 | if (!window.Element) { | |
842 | var Element = new Object(); | |
843 | } | |
844 | ||
845 | Object.extend(Element, { | |
846 | visible: function(element) { | |
847 | return $(element).style.display != 'none'; | |
848 | }, | |
849 | ||
850 | toggle: function() { | |
851 | for (var i = 0; i < arguments.length; i++) { | |
852 | var element = $(arguments[i]); | |
853 | Element[Element.visible(element) ? 'hide' : 'show'](element); | |
854 | } | |
855 | }, | |
856 | ||
857 | hide: function() { | |
858 | for (var i = 0; i < arguments.length; i++) { | |
859 | var element = $(arguments[i]); | |
860 | element.style.display = 'none'; | |
861 | } | |
862 | }, | |
863 | ||
864 | show: function() { | |
865 | for (var i = 0; i < arguments.length; i++) { | |
866 | var element = $(arguments[i]); | |
867 | element.style.display = ''; | |
868 | } | |
869 | }, | |
870 | ||
871 | remove: function(element) { | |
872 | element = $(element); | |
873 | element.parentNode.removeChild(element); | |
874 | }, | |
875 | ||
876 | update: function(element, html) { | |
877 | $(element).innerHTML = html.stripScripts(); | |
878 | setTimeout(function() {html.evalScripts()}, 10); | |
879 | }, | |
880 | ||
881 | getHeight: function(element) { | |
882 | element = $(element); | |
883 | return element.offsetHeight; | |
884 | }, | |
885 | ||
886 | classNames: function(element) { | |
887 | return new Element.ClassNames(element); | |
888 | }, | |
889 | ||
890 | hasClassName: function(element, className) { | |
891 | if (!(element = $(element))) return; | |
892 | return Element.classNames(element).include(className); | |
893 | }, | |
894 | ||
895 | addClassName: function(element, className) { | |
896 | if (!(element = $(element))) return; | |
897 | return Element.classNames(element).add(className); | |
898 | }, | |
899 | ||
900 | removeClassName: function(element, className) { | |
901 | if (!(element = $(element))) return; | |
902 | return Element.classNames(element).remove(className); | |
903 | }, | |
904 | ||
905 | // removes whitespace-only text node children | |
906 | cleanWhitespace: function(element) { | |
907 | element = $(element); | |
908 | for (var i = 0; i < element.childNodes.length; i++) { | |
909 | var node = element.childNodes[i]; | |
910 | if (node.nodeType == 3 && !/\S/.test(node.nodeValue)) | |
911 | Element.remove(node); | |
912 | } | |
913 | }, | |
914 | ||
915 | empty: function(element) { | |
916 | return $(element).innerHTML.match(/^\s*$/); | |
917 | }, | |
918 | ||
919 | scrollTo: function(element) { | |
920 | element = $(element); | |
921 | var x = element.x ? element.x : element.offsetLeft, | |
922 | y = element.y ? element.y : element.offsetTop; | |
923 | window.scrollTo(x, y); | |
924 | }, | |
925 | ||
926 | getStyle: function(element, style) { | |
927 | element = $(element); | |
928 | var value = element.style[style.camelize()]; | |
929 | if (!value) { | |
930 | if (document.defaultView && document.defaultView.getComputedStyle) { | |
931 | var css = document.defaultView.getComputedStyle(element, null); | |
932 | value = css ? css.getPropertyValue(style) : null; | |
933 | } else if (element.currentStyle) { | |
934 | value = element.currentStyle[style.camelize()]; | |
935 | } | |
936 | } | |
937 | ||
938 | if (window.opera && ['left', 'top', 'right', 'bottom'].include(style)) | |
939 | if (Element.getStyle(element, 'position') == 'static') value = 'auto'; | |
940 | ||
941 | return value == 'auto' ? null : value; | |
942 | }, | |
943 | ||
944 | setStyle: function(element, style) { | |
945 | element = $(element); | |
946 | for (name in style) | |
947 | element.style[name.camelize()] = style[name]; | |
948 | }, | |
949 | ||
950 | getDimensions: function(element) { | |
951 | element = $(element); | |
952 | if (Element.getStyle(element, 'display') != 'none') | |
953 | return {width: element.offsetWidth, height: element.offsetHeight}; | |
954 | ||
955 | // All *Width and *Height properties give 0 on elements with display none, | |
956 | // so enable the element temporarily | |
957 | var els = element.style; | |
958 | var originalVisibility = els.visibility; | |
959 | var originalPosition = els.position; | |
960 | els.visibility = 'hidden'; | |
961 | els.position = 'absolute'; | |
962 | els.display = ''; | |
963 | var originalWidth = element.clientWidth; | |
964 | var originalHeight = element.clientHeight; | |
965 | els.display = 'none'; | |
966 | els.position = originalPosition; | |
967 | els.visibility = originalVisibility; | |
968 | return {width: originalWidth, height: originalHeight}; | |
969 | }, | |
970 | ||
971 | makePositioned: function(element) { | |
972 | element = $(element); | |
973 | var pos = Element.getStyle(element, 'position'); | |
974 | if (pos == 'static' || !pos) { | |
975 | element._madePositioned = true; | |
976 | element.style.position = 'relative'; | |
977 | // Opera returns the offset relative to the positioning context, when an | |
978 | // element is position relative but top and left have not been defined | |
979 | if (window.opera) { | |
980 | element.style.top = 0; | |
981 | element.style.left = 0; | |
982 | } | |
983 | } | |
984 | }, | |
985 | ||
986 | undoPositioned: function(element) { | |
987 | element = $(element); | |
988 | if (element._madePositioned) { | |
989 | element._madePositioned = undefined; | |
990 | element.style.position = | |
991 | element.style.top = | |
992 | element.style.left = | |
993 | element.style.bottom = | |
994 | element.style.right = ''; | |
995 | } | |
996 | }, | |
997 | ||
998 | makeClipping: function(element) { | |
999 | element = $(element); | |
1000 | if (element._overflow) return; | |
1001 | element._overflow = element.style.overflow; | |
1002 | if ((Element.getStyle(element, 'overflow') || 'visible') != 'hidden') | |
1003 | element.style.overflow = 'hidden'; | |
1004 | }, | |
1005 | ||
1006 | undoClipping: function(element) { | |
1007 | element = $(element); | |
1008 | if (element._overflow) return; | |
1009 | element.style.overflow = element._overflow; | |
1010 | element._overflow = undefined; | |
1011 | } | |
1012 | }); | |
1013 | ||
1014 | var Toggle = new Object(); | |
1015 | Toggle.display = Element.toggle; | |
1016 | ||
1017 | /*--------------------------------------------------------------------------*/ | |
1018 | ||
1019 | Abstract.Insertion = function(adjacency) { | |
1020 | this.adjacency = adjacency; | |
1021 | } | |
1022 | ||
1023 | Abstract.Insertion.prototype = { | |
1024 | initialize: function(element, content) { | |
1025 | this.element = $(element); | |
1026 | this.content = content.stripScripts(); | |
1027 | ||
1028 | if (this.adjacency && this.element.insertAdjacentHTML) { | |
1029 | try { | |
1030 | this.element.insertAdjacentHTML(this.adjacency, this.content); | |
1031 | } catch (e) { | |
1032 | if (this.element.tagName.toLowerCase() == 'tbody') { | |
1033 | this.insertContent(this.contentFromAnonymousTable()); | |
1034 | } else { | |
1035 | throw e; | |
1036 | } | |
1037 | } | |
1038 | } else { | |
1039 | this.range = this.element.ownerDocument.createRange(); | |
1040 | if (this.initializeRange) this.initializeRange(); | |
1041 | this.insertContent([this.range.createContextualFragment(this.content)]); | |
1042 | } | |
1043 | ||
1044 | setTimeout(function() {content.evalScripts()}, 10); | |
1045 | }, | |
1046 | ||
1047 | contentFromAnonymousTable: function() { | |
1048 | var div = document.createElement('div'); | |
1049 | div.innerHTML = '<table><tbody>' + this.content + '</tbody></table>'; | |
1050 | return $A(div.childNodes[0].childNodes[0].childNodes); | |
1051 | } | |
1052 | } | |
1053 | ||
1054 | var Insertion = new Object(); | |
1055 | ||
1056 | Insertion.Before = Class.create(); | |
1057 | Insertion.Before.prototype = Object.extend(new Abstract.Insertion('beforeBegin'), { | |
1058 | initializeRange: function() { | |
1059 | this.range.setStartBefore(this.element); | |
1060 | }, | |
1061 | ||
1062 | insertContent: function(fragments) { | |
1063 | fragments.each((function(fragment) { | |
1064 | this.element.parentNode.insertBefore(fragment, this.element); | |
1065 | }).bind(this)); | |
1066 | } | |
1067 | }); | |
1068 | ||
1069 | Insertion.Top = Class.create(); | |
1070 | Insertion.Top.prototype = Object.extend(new Abstract.Insertion('afterBegin'), { | |
1071 | initializeRange: function() { | |
1072 | this.range.selectNodeContents(this.element); | |
1073 | this.range.collapse(true); | |
1074 | }, | |
1075 | ||
1076 | insertContent: function(fragments) { | |
1077 | fragments.reverse(false).each((function(fragment) { | |
1078 | this.element.insertBefore(fragment, this.element.firstChild); | |
1079 | }).bind(this)); | |
1080 | } | |
1081 | }); | |
1082 | ||
1083 | Insertion.Bottom = Class.create(); | |
1084 | Insertion.Bottom.prototype = Object.extend(new Abstract.Insertion('beforeEnd'), { | |
1085 | initializeRange: function() { | |
1086 | this.range.selectNodeContents(this.element); | |
1087 | this.range.collapse(this.element); | |
1088 | }, | |
1089 | ||
1090 | insertContent: function(fragments) { | |
1091 | fragments.each((function(fragment) { | |
1092 | this.element.appendChild(fragment); | |
1093 | }).bind(this)); | |
1094 | } | |
1095 | }); | |
1096 | ||
1097 | Insertion.After = Class.create(); | |
1098 | Insertion.After.prototype = Object.extend(new Abstract.Insertion('afterEnd'), { | |
1099 | initializeRange: function() { | |
1100 | this.range.setStartAfter(this.element); | |
1101 | }, | |
1102 | ||
1103 | insertContent: function(fragments) { | |
1104 | fragments.each((function(fragment) { | |
1105 | this.element.parentNode.insertBefore(fragment, | |
1106 | this.element.nextSibling); | |
1107 | }).bind(this)); | |
1108 | } | |
1109 | }); | |
1110 | ||
1111 | /*--------------------------------------------------------------------------*/ | |
1112 | ||
1113 | Element.ClassNames = Class.create(); | |
1114 | Element.ClassNames.prototype = { | |
1115 | initialize: function(element) { | |
1116 | this.element = $(element); | |
1117 | }, | |
1118 | ||
1119 | _each: function(iterator) { | |
1120 | this.element.className.split(/\s+/).select(function(name) { | |
1121 | return name.length > 0; | |
1122 | })._each(iterator); | |
1123 | }, | |
1124 | ||
1125 | set: function(className) { | |
1126 | this.element.className = className; | |
1127 | }, | |
1128 | ||
1129 | add: function(classNameToAdd) { | |
1130 | if (this.include(classNameToAdd)) return; | |
1131 | this.set(this.toArray().concat(classNameToAdd).join(' ')); | |
1132 | }, | |
1133 | ||
1134 | remove: function(classNameToRemove) { | |
1135 | if (!this.include(classNameToRemove)) return; | |
1136 | this.set(this.select(function(className) { | |
1137 | return className != classNameToRemove; | |
1138 | }).join(' ')); | |
1139 | }, | |
1140 | ||
1141 | toString: function() { | |
1142 | return this.toArray().join(' '); | |
1143 | } | |
1144 | } | |
1145 | ||
1146 | Object.extend(Element.ClassNames.prototype, Enumerable); | |
1147 | var Field = { | |
1148 | clear: function() { | |
1149 | for (var i = 0; i < arguments.length; i++) | |
1150 | $(arguments[i]).value = ''; | |
1151 | }, | |
1152 | ||
1153 | focus: function(element) { | |
1154 | $(element).focus(); | |
1155 | }, | |
1156 | ||
1157 | present: function() { | |
1158 | for (var i = 0; i < arguments.length; i++) | |
1159 | if ($(arguments[i]).value == '') return false; | |
1160 | return true; | |
1161 | }, | |
1162 | ||
1163 | select: function(element) { | |
1164 | $(element).select(); | |
1165 | }, | |
1166 | ||
1167 | activate: function(element) { | |
1168 | element = $(element); | |
1169 | element.focus(); | |
1170 | if (element.select) | |
1171 | element.select(); | |
1172 | } | |
1173 | } | |
1174 | ||
1175 | /*--------------------------------------------------------------------------*/ | |
1176 | ||
1177 | var Form = { | |
1178 | serialize: function(form) { | |
1179 | var elements = Form.getElements($(form)); | |
1180 | var queryComponents = new Array(); | |
1181 | ||
1182 | for (var i = 0; i < elements.length; i++) { | |
1183 | var queryComponent = Form.Element.serialize(elements[i]); | |
1184 | if (queryComponent) | |
1185 | queryComponents.push(queryComponent); | |
1186 | } | |
1187 | ||
1188 | return queryComponents.join('&'); | |
1189 | }, | |
1190 | ||
1191 | getElements: function(form) { | |
1192 | form = $(form); | |
1193 | var elements = new Array(); | |
1194 | ||
1195 | for (tagName in Form.Element.Serializers) { | |
1196 | var tagElements = form.getElementsByTagName(tagName); | |
1197 | for (var j = 0; j < tagElements.length; j++) | |
1198 | elements.push(tagElements[j]); | |
1199 | } | |
1200 | return elements; | |
1201 | }, | |
1202 | ||
1203 | getInputs: function(form, typeName, name) { | |
1204 | form = $(form); | |
1205 | var inputs = form.getElementsByTagName('input'); | |
1206 | ||
1207 | if (!typeName && !name) | |
1208 | return inputs; | |
1209 | ||
1210 | var matchingInputs = new Array(); | |
1211 | for (var i = 0; i < inputs.length; i++) { | |
1212 | var input = inputs[i]; | |
1213 | if ((typeName && input.type != typeName) || | |
1214 | (name && input.name != name)) | |
1215 | continue; | |
1216 | matchingInputs.push(input); | |
1217 | } | |
1218 | ||
1219 | return matchingInputs; | |
1220 | }, | |
1221 | ||
1222 | disable: function(form) { | |
1223 | var elements = Form.getElements(form); | |
1224 | for (var i = 0; i < elements.length; i++) { | |
1225 | var element = elements[i]; | |
1226 | element.blur(); | |
1227 | element.disabled = 'true'; | |
1228 | } | |
1229 | }, | |
1230 | ||
1231 | enable: function(form) { | |
1232 | var elements = Form.getElements(form); | |
1233 | for (var i = 0; i < elements.length; i++) { | |
1234 | var element = elements[i]; | |
1235 | element.disabled = ''; | |
1236 | } | |
1237 | }, | |
1238 | ||
1239 | findFirstElement: function(form) { | |
1240 | return Form.getElements(form).find(function(element) { | |
1241 | return element.type != 'hidden' && !element.disabled && | |
1242 | ['input', 'select', 'textarea'].include(element.tagName.toLowerCase()); | |
1243 | }); | |
1244 | }, | |
1245 | ||
1246 | focusFirstElement: function(form) { | |
1247 | Field.activate(Form.findFirstElement(form)); | |
1248 | }, | |
1249 | ||
1250 | reset: function(form) { | |
1251 | $(form).reset(); | |
1252 | } | |
1253 | } | |
1254 | ||
1255 | Form.Element = { | |
1256 | serialize: function(element) { | |
1257 | element = $(element); | |
1258 | var method = element.tagName.toLowerCase(); | |
1259 | var parameter = Form.Element.Serializers[method](element); | |
1260 | ||
1261 | if (parameter) { | |
1262 | var key = encodeURIComponent(parameter[0]); | |
1263 | if (key.length == 0) return; | |
1264 | ||
1265 | if (parameter[1].constructor != Array) | |
1266 | parameter[1] = [parameter[1]]; | |
1267 | ||
1268 | return parameter[1].map(function(value) { | |
1269 | return key + '=' + encodeURIComponent(value); | |
1270 | }).join('&'); | |
1271 | } | |
1272 | }, | |
1273 | ||
1274 | getValue: function(element) { | |
1275 | element = $(element); | |
1276 | var method = element.tagName.toLowerCase(); | |
1277 | var parameter = Form.Element.Serializers[method](element); | |
1278 | ||
1279 | if (parameter) | |
1280 | return parameter[1]; | |
1281 | } | |
1282 | } | |
1283 | ||
1284 | Form.Element.Serializers = { | |
1285 | input: function(element) { | |
1286 | switch (element.type.toLowerCase()) { | |
1287 | case 'submit': | |
1288 | case 'hidden': | |
1289 | case 'password': | |
1290 | case 'text': | |
1291 | return Form.Element.Serializers.textarea(element); | |
1292 | case 'checkbox': | |
1293 | case 'radio': | |
1294 | return Form.Element.Serializers.inputSelector(element); | |
1295 | } | |
1296 | return false; | |
1297 | }, | |
1298 | ||
1299 | inputSelector: function(element) { | |
1300 | if (element.checked) | |
1301 | return [element.name, element.value]; | |
1302 | }, | |
1303 | ||
1304 | textarea: function(element) { | |
1305 | return [element.name, element.value]; | |
1306 | }, | |
1307 | ||
1308 | select: function(element) { | |
1309 | return Form.Element.Serializers[element.type == 'select-one' ? | |
1310 | 'selectOne' : 'selectMany'](element); | |
1311 | }, | |
1312 | ||
1313 | selectOne: function(element) { | |
1314 | var value = '', opt, index = element.selectedIndex; | |
1315 | if (index >= 0) { | |
1316 | opt = element.options[index]; | |
1317 | value = opt.value; | |
1318 | if (!value && !('value' in opt)) | |
1319 | value = opt.text; | |
1320 | } | |
1321 | return [element.name, value]; | |
1322 | }, | |
1323 | ||
1324 | selectMany: function(element) { | |
1325 | var value = new Array(); | |
1326 | for (var i = 0; i < element.length; i++) { | |
1327 | var opt = element.options[i]; | |
1328 | if (opt.selected) { | |
1329 | var optValue = opt.value; | |
1330 | if (!optValue && !('value' in opt)) | |
1331 | optValue = opt.text; | |
1332 | value.push(optValue); | |
1333 | } | |
1334 | } | |
1335 | return [element.name, value]; | |
1336 | } | |
1337 | } | |
1338 | ||
1339 | /*--------------------------------------------------------------------------*/ | |
1340 | ||
1341 | var $F = Form.Element.getValue; | |
1342 | ||
1343 | /*--------------------------------------------------------------------------*/ | |
1344 | ||
1345 | Abstract.TimedObserver = function() {} | |
1346 | Abstract.TimedObserver.prototype = { | |
1347 | initialize: function(element, frequency, callback) { | |
1348 | this.frequency = frequency; | |
1349 | this.element = $(element); | |
1350 | this.callback = callback; | |
1351 | ||
1352 | this.lastValue = this.getValue(); | |
1353 | this.registerCallback(); | |
1354 | }, | |
1355 | ||
1356 | registerCallback: function() { | |
1357 | setInterval(this.onTimerEvent.bind(this), this.frequency * 1000); | |
1358 | }, | |
1359 | ||
1360 | onTimerEvent: function() { | |
1361 | var value = this.getValue(); | |
1362 | if (this.lastValue != value) { | |
1363 | this.callback(this.element, value); | |
1364 | this.lastValue = value; | |
1365 | } | |
1366 | } | |
1367 | } | |
1368 | ||
1369 | Form.Element.Observer = Class.create(); | |
1370 | Form.Element.Observer.prototype = Object.extend(new Abstract.TimedObserver(), { | |
1371 | getValue: function() { | |
1372 | return Form.Element.getValue(this.element); | |
1373 | } | |
1374 | }); | |
1375 | ||
1376 | Form.Observer = Class.create(); | |
1377 | Form.Observer.prototype = Object.extend(new Abstract.TimedObserver(), { | |
1378 | getValue: function() { | |
1379 | return Form.serialize(this.element); | |
1380 | } | |
1381 | }); | |
1382 | ||
1383 | /*--------------------------------------------------------------------------*/ | |
1384 | ||
1385 | Abstract.EventObserver = function() {} | |
1386 | Abstract.EventObserver.prototype = { | |
1387 | initialize: function(element, callback) { | |
1388 | this.element = $(element); | |
1389 | this.callback = callback; | |
1390 | ||
1391 | this.lastValue = this.getValue(); | |
1392 | if (this.element.tagName.toLowerCase() == 'form') | |
1393 | this.registerFormCallbacks(); | |
1394 | else | |
1395 | this.registerCallback(this.element); | |
1396 | }, | |
1397 | ||
1398 | onElementEvent: function() { | |
1399 | var value = this.getValue(); | |
1400 | if (this.lastValue != value) { | |
1401 | this.callback(this.element, value); | |
1402 | this.lastValue = value; | |
1403 | } | |
1404 | }, | |
1405 | ||
1406 | registerFormCallbacks: function() { | |
1407 | var elements = Form.getElements(this.element); | |
1408 | for (var i = 0; i < elements.length; i++) | |
1409 | this.registerCallback(elements[i]); | |
1410 | }, | |
1411 | ||
1412 | registerCallback: function(element) { | |
1413 | if (element.type) { | |
1414 | switch (element.type.toLowerCase()) { | |
1415 | case 'checkbox': | |
1416 | case 'radio': | |
1417 | Event.observe(element, 'click', this.onElementEvent.bind(this)); | |
1418 | break; | |
1419 | case 'password': | |
1420 | case 'text': | |
1421 | case 'textarea': | |
1422 | case 'select-one': | |
1423 | case 'select-multiple': | |
1424 | Event.observe(element, 'change', this.onElementEvent.bind(this)); | |
1425 | break; | |
1426 | } | |
1427 | } | |
1428 | } | |
1429 | } | |
1430 | ||
1431 | Form.Element.EventObserver = Class.create(); | |
1432 | Form.Element.EventObserver.prototype = Object.extend(new Abstract.EventObserver(), { | |
1433 | getValue: function() { | |
1434 | return Form.Element.getValue(this.element); | |
1435 | } | |
1436 | }); | |
1437 | ||
1438 | Form.EventObserver = Class.create(); | |
1439 | Form.EventObserver.prototype = Object.extend(new Abstract.EventObserver(), { | |
1440 | getValue: function() { | |
1441 | return Form.serialize(this.element); | |
1442 | } | |
1443 | }); | |
1444 | if (!window.Event) { | |
1445 | var Event = new Object(); | |
1446 | } | |
1447 | ||
1448 | Object.extend(Event, { | |
1449 | KEY_BACKSPACE: 8, | |
1450 | KEY_TAB: 9, | |
1451 | KEY_RETURN: 13, | |
1452 | KEY_ESC: 27, | |
1453 | KEY_LEFT: 37, | |
1454 | KEY_UP: 38, | |
1455 | KEY_RIGHT: 39, | |
1456 | KEY_DOWN: 40, | |
1457 | KEY_DELETE: 46, | |
1458 | ||
1459 | element: function(event) { | |
1460 | return event.target || event.srcElement; | |
1461 | }, | |
1462 | ||
1463 | isLeftClick: function(event) { | |
1464 | return (((event.which) && (event.which == 1)) || | |
1465 | ((event.button) && (event.button == 1))); | |
1466 | }, | |
1467 | ||
1468 | pointerX: function(event) { | |
1469 | return event.pageX || (event.clientX + | |
1470 | (document.documentElement.scrollLeft || document.body.scrollLeft)); | |
1471 | }, | |
1472 | ||
1473 | pointerY: function(event) { | |
1474 | return event.pageY || (event.clientY + | |
1475 | (document.documentElement.scrollTop || document.body.scrollTop)); | |
1476 | }, | |
1477 | ||
1478 | stop: function(event) { | |
1479 | if (event.preventDefault) { | |
1480 | event.preventDefault(); | |
1481 | event.stopPropagation(); | |
1482 | } else { | |
1483 | event.returnValue = false; | |
1484 | event.cancelBubble = true; | |
1485 | } | |
1486 | }, | |
1487 | ||
1488 | // find the first node with the given tagName, starting from the | |
1489 | // node the event was triggered on; traverses the DOM upwards | |
1490 | findElement: function(event, tagName) { | |
1491 | var element = Event.element(event); | |
1492 | while (element.parentNode && (!element.tagName || | |
1493 | (element.tagName.toUpperCase() != tagName.toUpperCase()))) | |
1494 | element = element.parentNode; | |
1495 | return element; | |
1496 | }, | |
1497 | ||
1498 | observers: false, | |
1499 | ||
1500 | _observeAndCache: function(element, name, observer, useCapture) { | |
1501 | if (!this.observers) this.observers = []; | |
1502 | if (element.addEventListener) { | |
1503 | this.observers.push([element, name, observer, useCapture]); | |
1504 | element.addEventListener(name, observer, useCapture); | |
1505 | } else if (element.attachEvent) { | |
1506 | this.observers.push([element, name, observer, useCapture]); | |
1507 | element.attachEvent('on' + name, observer); | |
1508 | } | |
1509 | }, | |
1510 | ||
1511 | unloadCache: function() { | |
1512 | if (!Event.observers) return; | |
1513 | for (var i = 0; i < Event.observers.length; i++) { | |
1514 | Event.stopObserving.apply(this, Event.observers[i]); | |
1515 | Event.observers[i][0] = null; | |
1516 | } | |
1517 | Event.observers = false; | |
1518 | }, | |
1519 | ||
1520 | observe: function(element, name, observer, useCapture) { | |
1521 | var element = $(element); | |
1522 | useCapture = useCapture || false; | |
1523 | ||
1524 | if (name == 'keypress' && | |
1525 | (navigator.appVersion.match(/Konqueror|Safari|KHTML/) | |
1526 | || element.attachEvent)) | |
1527 | name = 'keydown'; | |
1528 | ||
1529 | this._observeAndCache(element, name, observer, useCapture); | |
1530 | }, | |
1531 | ||
1532 | stopObserving: function(element, name, observer, useCapture) { | |
1533 | var element = $(element); | |
1534 | useCapture = useCapture || false; | |
1535 | ||
1536 | if (name == 'keypress' && | |
1537 | (navigator.appVersion.match(/Konqueror|Safari|KHTML/) | |
1538 | || element.detachEvent)) | |
1539 | name = 'keydown'; | |
1540 | ||
1541 | if (element.removeEventListener) { | |
1542 | element.removeEventListener(name, observer, useCapture); | |
1543 | } else if (element.detachEvent) { | |
1544 | element.detachEvent('on' + name, observer); | |
1545 | } | |
1546 | } | |
1547 | }); | |
1548 | ||
1549 | /* prevent memory leaks in IE */ | |
1550 | Event.observe(window, 'unload', Event.unloadCache, false); | |
1551 | var Position = { | |
1552 | // set to true if needed, warning: firefox performance problems | |
1553 | // NOT neeeded for page scrolling, only if draggable contained in | |
1554 | // scrollable elements | |
1555 | includeScrollOffsets: false, | |
1556 | ||
1557 | // must be called before calling withinIncludingScrolloffset, every time the | |
1558 | // page is scrolled | |
1559 | prepare: function() { | |
1560 | this.deltaX = window.pageXOffset | |
1561 | || document.documentElement.scrollLeft | |
1562 | || document.body.scrollLeft | |
1563 | || 0; | |
1564 | this.deltaY = window.pageYOffset | |
1565 | || document.documentElement.scrollTop | |
1566 | || document.body.scrollTop | |
1567 | || 0; | |
1568 | }, | |
1569 | ||
1570 | realOffset: function(element) { | |
1571 | var valueT = 0, valueL = 0; | |
1572 | do { | |
1573 | valueT += element.scrollTop || 0; | |
1574 | valueL += element.scrollLeft || 0; | |
1575 | element = element.parentNode; | |
1576 | } while (element); | |
1577 | return [valueL, valueT]; | |
1578 | }, | |
1579 | ||
1580 | cumulativeOffset: function(element) { | |
1581 | var valueT = 0, valueL = 0; | |
1582 | do { | |
1583 | valueT += element.offsetTop || 0; | |
1584 | valueL += element.offsetLeft || 0; | |
1585 | element = element.offsetParent; | |
1586 | } while (element); | |
1587 | return [valueL, valueT]; | |
1588 | }, | |
1589 | ||
1590 | positionedOffset: function(element) { | |
1591 | var valueT = 0, valueL = 0; | |
1592 | do { | |
1593 | valueT += element.offsetTop || 0; | |
1594 | valueL += element.offsetLeft || 0; | |
1595 | element = element.offsetParent; | |
1596 | if (element) { | |
1597 | p = Element.getStyle(element, 'position'); | |
1598 | if (p == 'relative' || p == 'absolute') break; | |
1599 | } | |
1600 | } while (element); | |
1601 | return [valueL, valueT]; | |
1602 | }, | |
1603 | ||
1604 | offsetParent: function(element) { | |
1605 | if (element.offsetParent) return element.offsetParent; | |
1606 | if (element == document.body) return element; | |
1607 | ||
1608 | while ((element = element.parentNode) && element != document.body) | |
1609 | if (Element.getStyle(element, 'position') != 'static') | |
1610 | return element; | |
1611 | ||
1612 | return document.body; | |
1613 | }, | |
1614 | ||
1615 | // caches x/y coordinate pair to use with overlap | |
1616 | within: function(element, x, y) { | |
1617 | if (this.includeScrollOffsets) | |
1618 | return this.withinIncludingScrolloffsets(element, x, y); | |
1619 | this.xcomp = x; | |
1620 | this.ycomp = y; | |
1621 | this.offset = this.cumulativeOffset(element); | |
1622 | ||
1623 | return (y >= this.offset[1] && | |
1624 | y < this.offset[1] + element.offsetHeight && | |
1625 | x >= this.offset[0] && | |
1626 | x < this.offset[0] + element.offsetWidth); | |
1627 | }, | |
1628 | ||
1629 | withinIncludingScrolloffsets: function(element, x, y) { | |
1630 | var offsetcache = this.realOffset(element); | |
1631 | ||
1632 | this.xcomp = x + offsetcache[0] - this.deltaX; | |
1633 | this.ycomp = y + offsetcache[1] - this.deltaY; | |
1634 | this.offset = this.cumulativeOffset(element); | |
1635 | ||
1636 | return (this.ycomp >= this.offset[1] && | |
1637 | this.ycomp < this.offset[1] + element.offsetHeight && | |
1638 | this.xcomp >= this.offset[0] && | |
1639 | this.xcomp < this.offset[0] + element.offsetWidth); | |
1640 | }, | |
1641 | ||
1642 | // within must be called directly before | |
1643 | overlap: function(mode, element) { | |
1644 | if (!mode) return 0; | |
1645 | if (mode == 'vertical') | |
1646 | return ((this.offset[1] + element.offsetHeight) - this.ycomp) / | |
1647 | element.offsetHeight; | |
1648 | if (mode == 'horizontal') | |
1649 | return ((this.offset[0] + element.offsetWidth) - this.xcomp) / | |
1650 | element.offsetWidth; | |
1651 | }, | |
1652 | ||
1653 | clone: function(source, target) { | |
1654 | source = $(source); | |
1655 | target = $(target); | |
1656 | target.style.position = 'absolute'; | |
1657 | var offsets = this.cumulativeOffset(source); | |
1658 | target.style.top = offsets[1] + 'px'; | |
1659 | target.style.left = offsets[0] + 'px'; | |
1660 | target.style.width = source.offsetWidth + 'px'; | |
1661 | target.style.height = source.offsetHeight + 'px'; | |
1662 | }, | |
1663 | ||
1664 | page: function(forElement) { | |
1665 | var valueT = 0, valueL = 0; | |
1666 | ||
1667 | var element = forElement; | |
1668 | do { | |
1669 | valueT += element.offsetTop || 0; | |
1670 | valueL += element.offsetLeft || 0; | |
1671 | ||
1672 | // Safari fix | |
1673 | if (element.offsetParent==document.body) | |
1674 | if (Element.getStyle(element,'position')=='absolute') break; | |
1675 | ||
1676 | } while (element = element.offsetParent); | |
1677 | ||
1678 | element = forElement; | |
1679 | do { | |
1680 | valueT -= element.scrollTop || 0; | |
1681 | valueL -= element.scrollLeft || 0; | |
1682 | } while (element = element.parentNode); | |
1683 | ||
1684 | return [valueL, valueT]; | |
1685 | }, | |
1686 | ||
1687 | clone: function(source, target) { | |
1688 | var options = Object.extend({ | |
1689 | setLeft: true, | |
1690 | setTop: true, | |
1691 | setWidth: true, | |
1692 | setHeight: true, | |
1693 | offsetTop: 0, | |
1694 | offsetLeft: 0 | |
1695 | }, arguments[2] || {}) | |
1696 | ||
1697 | // find page position of source | |
1698 | source = $(source); | |
1699 | var p = Position.page(source); | |
1700 | ||
1701 | // find coordinate system to use | |
1702 | target = $(target); | |
1703 | var delta = [0, 0]; | |
1704 | var parent = null; | |
1705 | // delta [0,0] will do fine with position: fixed elements, | |
1706 | // position:absolute needs offsetParent deltas | |
1707 | if (Element.getStyle(target,'position') == 'absolute') { | |
1708 | parent = Position.offsetParent(target); | |
1709 | delta = Position.page(parent); | |
1710 | } | |
1711 | ||
1712 | // correct by body offsets (fixes Safari) | |
1713 | if (parent == document.body) { | |
1714 | delta[0] -= document.body.offsetLeft; | |
1715 | delta[1] -= document.body.offsetTop; | |
1716 | } | |
1717 | ||
1718 | // set position | |
1719 | if(options.setLeft) target.style.left = (p[0] - delta[0] + options.offsetLeft) + 'px'; | |
1720 | if(options.setTop) target.style.top = (p[1] - delta[1] + options.offsetTop) + 'px'; | |
1721 | if(options.setWidth) target.style.width = source.offsetWidth + 'px'; | |
1722 | if(options.setHeight) target.style.height = source.offsetHeight + 'px'; | |
1723 | }, | |
1724 | ||
1725 | absolutize: function(element) { | |
1726 | element = $(element); | |
1727 | if (element.style.position == 'absolute') return; | |
1728 | Position.prepare(); | |
1729 | ||
1730 | var offsets = Position.positionedOffset(element); | |
1731 | var top = offsets[1]; | |
1732 | var left = offsets[0]; | |
1733 | var width = element.clientWidth; | |
1734 | var height = element.clientHeight; | |
1735 | ||
1736 | element._originalLeft = left - parseFloat(element.style.left || 0); | |
1737 | element._originalTop = top - parseFloat(element.style.top || 0); | |
1738 | element._originalWidth = element.style.width; | |
1739 | element._originalHeight = element.style.height; | |
1740 | ||
1741 | element.style.position = 'absolute'; | |
1742 | element.style.top = top + 'px';; | |
1743 | element.style.left = left + 'px';; | |
1744 | element.style.width = width + 'px';; | |
1745 | element.style.height = height + 'px';; | |
1746 | }, | |
1747 | ||
1748 | relativize: function(element) { | |
1749 | element = $(element); | |
1750 | if (element.style.position == 'relative') return; | |
1751 | Position.prepare(); | |
1752 | ||
1753 | element.style.position = 'relative'; | |
1754 | var top = parseFloat(element.style.top || 0) - (element._originalTop || 0); | |
1755 | var left = parseFloat(element.style.left || 0) - (element._originalLeft || 0); | |
1756 | ||
1757 | element.style.top = top + 'px'; | |
1758 | element.style.left = left + 'px'; | |
1759 | element.style.height = element._originalHeight; | |
1760 | element.style.width = element._originalWidth; | |
1761 | } | |
1762 | } | |
1763 | ||
1764 | // Safari returns margins on body which is incorrect if the child is absolutely | |
1765 | // positioned. For performance reasons, redefine Position.cumulativeOffset for | |
1766 | // KHTML/WebKit only. | |
1767 | if (/Konqueror|Safari|KHTML/.test(navigator.userAgent)) { | |
1768 | Position.cumulativeOffset = function(element) { | |
1769 | var valueT = 0, valueL = 0; | |
1770 | do { | |
1771 | valueT += element.offsetTop || 0; | |
1772 | valueL += element.offsetLeft || 0; | |
1773 | if (element.offsetParent == document.body) | |
1774 | if (Element.getStyle(element, 'position') == 'absolute') break; | |
1775 | ||
1776 | element = element.offsetParent; | |
1777 | } while (element); | |
1778 | ||
1779 | return [valueL, valueT]; | |
1780 | } | |
1781 | } |