Changesets can be listed by changeset number.
The Git repository is here.
- Revision:
- 86
- Log:
Initial import of I2, an Instiki clone.
- Author:
- adh
- Date:
- Mon Oct 16 10:40:36 +0100 2006
- Size:
- 27943 Bytes
1 | /* Prototype JavaScript framework, version 1.3.1 |
2 | * (c) 2005 Sam Stephenson <sam@conio.net> |
3 | * |
4 | * THIS FILE IS AUTOMATICALLY GENERATED. When sending patches, please diff |
5 | * against the source tree, available from the Prototype darcs repository. |
6 | * |
7 | * Prototype is freely distributable under the terms of an MIT-style license. |
8 | * |
9 | * For details, see the Prototype web site: http://prototype.conio.net/ |
10 | * |
11 | /*--------------------------------------------------------------------------*/ |
12 | |
13 | var Prototype = { |
14 | Version: '1.3.1', |
15 | emptyFunction: function() {} |
16 | } |
17 | |
18 | var Class = { |
19 | create: function() { |
20 | return function() { |
21 | this.initialize.apply(this, arguments); |
22 | } |
23 | } |
24 | } |
25 | |
26 | var Abstract = new Object(); |
27 | |
28 | Object.extend = function(destination, source) { |
29 | for (property in source) { |
30 | destination[property] = source[property]; |
31 | } |
32 | return destination; |
33 | } |
34 | |
35 | Object.prototype.extend = function(object) { |
36 | return Object.extend.apply(this, [this, object]); |
37 | } |
38 | |
39 | Function.prototype.bind = function(object) { |
40 | var __method = this; |
41 | return function() { |
42 | __method.apply(object, arguments); |
43 | } |
44 | } |
45 | |
46 | Function.prototype.bindAsEventListener = function(object) { |
47 | var __method = this; |
48 | return function(event) { |
49 | __method.call(object, event || window.event); |
50 | } |
51 | } |
52 | |
53 | Number.prototype.toColorPart = function() { |
54 | var digits = this.toString(16); |
55 | if (this < 16) return '0' + digits; |
56 | return digits; |
57 | } |
58 | |
59 | var Try = { |
60 | these: function() { |
61 | var returnValue; |
62 | |
63 | for (var i = 0; i < arguments.length; i++) { |
64 | var lambda = arguments[i]; |
65 | try { |
66 | returnValue = lambda(); |
67 | break; |
68 | } catch (e) {} |
69 | } |
70 | |
71 | return returnValue; |
72 | } |
73 | } |
74 | |
75 | /*--------------------------------------------------------------------------*/ |
76 | |
77 | var PeriodicalExecuter = Class.create(); |
78 | PeriodicalExecuter.prototype = { |
79 | initialize: function(callback, frequency) { |
80 | this.callback = callback; |
81 | this.frequency = frequency; |
82 | this.currentlyExecuting = false; |
83 | |
84 | this.registerCallback(); |
85 | }, |
86 | |
87 | registerCallback: function() { |
88 | setInterval(this.onTimerEvent.bind(this), this.frequency * 1000); |
89 | }, |
90 | |
91 | onTimerEvent: function() { |
92 | if (!this.currentlyExecuting) { |
93 | try { |
94 | this.currentlyExecuting = true; |
95 | this.callback(); |
96 | } finally { |
97 | this.currentlyExecuting = false; |
98 | } |
99 | } |
100 | } |
101 | } |
102 | |
103 | /*--------------------------------------------------------------------------*/ |
104 | |
105 | function $() { |
106 | var elements = new Array(); |
107 | |
108 | for (var i = 0; i < arguments.length; i++) { |
109 | var element = arguments[i]; |
110 | if (typeof element == 'string') |
111 | element = document.getElementById(element); |
112 | |
113 | if (arguments.length == 1) |
114 | return element; |
115 | |
116 | elements.push(element); |
117 | } |
118 | |
119 | return elements; |
120 | } |
121 | |
122 | if (!Array.prototype.push) { |
123 | Array.prototype.push = function() { |
124 | var startLength = this.length; |
125 | for (var i = 0; i < arguments.length; i++) |
126 | this[startLength + i] = arguments[i]; |
127 | return this.length; |
128 | } |
129 | } |
130 | |
131 | if (!Function.prototype.apply) { |
132 | // Based on code from http://www.youngpup.net/ |
133 | Function.prototype.apply = function(object, parameters) { |
134 | var parameterStrings = new Array(); |
135 | if (!object) object = window; |
136 | if (!parameters) parameters = new Array(); |
137 | |
138 | for (var i = 0; i < parameters.length; i++) |
139 | parameterStrings[i] = 'parameters[' + i + ']'; |
140 | |
141 | object.__apply__ = this; |
142 | var result = eval('object.__apply__(' + |
143 | parameterStrings[i].join(', ') + ')'); |
144 | object.__apply__ = null; |
145 | |
146 | return result; |
147 | } |
148 | } |
149 | |
150 | String.prototype.extend({ |
151 | stripTags: function() { |
152 | return this.replace(/<\/?[^>]+>/gi, ''); |
153 | }, |
154 | |
155 | escapeHTML: function() { |
156 | var div = document.createElement('div'); |
157 | var text = document.createTextNode(this); |
158 | div.appendChild(text); |
159 | return div.innerHTML; |
160 | }, |
161 | |
162 | unescapeHTML: function() { |
163 | var div = document.createElement('div'); |
164 | div.innerHTML = this.stripTags(); |
165 | return div.childNodes[0].nodeValue; |
166 | } |
167 | }); |
168 | |
169 | var Ajax = { |
170 | getTransport: function() { |
171 | return Try.these( |
172 | function() {return new ActiveXObject('Msxml2.XMLHTTP')}, |
173 | function() {return new ActiveXObject('Microsoft.XMLHTTP')}, |
174 | function() {return new XMLHttpRequest()} |
175 | ) || false; |
176 | } |
177 | } |
178 | |
179 | Ajax.Base = function() {}; |
180 | Ajax.Base.prototype = { |
181 | setOptions: function(options) { |
182 | this.options = { |
183 | method: 'post', |
184 | asynchronous: true, |
185 | parameters: '' |
186 | }.extend(options || {}); |
187 | }, |
188 | |
189 | responseIsSuccess: function() { |
190 | return this.transport.status == undefined |
191 | || this.transport.status == 0 |
192 | || (this.transport.status >= 200 && this.transport.status < 300); |
193 | }, |
194 | |
195 | responseIsFailure: function() { |
196 | return !this.responseIsSuccess(); |
197 | } |
198 | } |
199 | |
200 | Ajax.Request = Class.create(); |
201 | Ajax.Request.Events = |
202 | ['Uninitialized', 'Loading', 'Loaded', 'Interactive', 'Complete']; |
203 | |
204 | Ajax.Request.prototype = (new Ajax.Base()).extend({ |
205 | initialize: function(url, options) { |
206 | this.transport = Ajax.getTransport(); |
207 | this.setOptions(options); |
208 | this.request(url); |
209 | }, |
210 | |
211 | request: function(url) { |
212 | var parameters = this.options.parameters || ''; |
213 | if (parameters.length > 0) parameters += '&_='; |
214 | |
215 | try { |
216 | if (this.options.method == 'get') |
217 | url += '?' + parameters; |
218 | |
219 | this.transport.open(this.options.method, url, |
220 | this.options.asynchronous); |
221 | |
222 | if (this.options.asynchronous) { |
223 | this.transport.onreadystatechange = this.onStateChange.bind(this); |
224 | setTimeout((function() {this.respondToReadyState(1)}).bind(this), 10); |
225 | } |
226 | |
227 | this.setRequestHeaders(); |
228 | |
229 | var body = this.options.postBody ? this.options.postBody : parameters; |
230 | this.transport.send(this.options.method == 'post' ? body : null); |
231 | |
232 | } catch (e) { |
233 | } |
234 | }, |
235 | |
236 | setRequestHeaders: function() { |
237 | var requestHeaders = |
238 | ['X-Requested-With', 'XMLHttpRequest', |
239 | 'X-Prototype-Version', Prototype.Version]; |
240 | |
241 | if (this.options.method == 'post') { |
242 | requestHeaders.push('Content-type', |
243 | 'application/x-www-form-urlencoded'); |
244 | |
245 | /* Force "Connection: close" for Mozilla browsers to work around |
246 | * a bug where XMLHttpReqeuest sends an incorrect Content-length |
247 | * header. See Mozilla Bugzilla #246651. |
248 | */ |
249 | if (this.transport.overrideMimeType) |
250 | requestHeaders.push('Connection', 'close'); |
251 | } |
252 | |
253 | if (this.options.requestHeaders) |
254 | requestHeaders.push.apply(requestHeaders, this.options.requestHeaders); |
255 | |
256 | for (var i = 0; i < requestHeaders.length; i += 2) |
257 | this.transport.setRequestHeader(requestHeaders[i], requestHeaders[i+1]); |
258 | }, |
259 | |
260 | onStateChange: function() { |
261 | var readyState = this.transport.readyState; |
262 | if (readyState != 1) |
263 | this.respondToReadyState(this.transport.readyState); |
264 | }, |
265 | |
266 | respondToReadyState: function(readyState) { |
267 | var event = Ajax.Request.Events[readyState]; |
268 | |
269 | if (event == 'Complete') |
270 | (this.options['on' + this.transport.status] |
271 | || this.options['on' + (this.responseIsSuccess() ? 'Success' : 'Failure')] |
272 | || Prototype.emptyFunction)(this.transport); |
273 | |
274 | (this.options['on' + event] || Prototype.emptyFunction)(this.transport); |
275 | |
276 | /* Avoid memory leak in MSIE: clean up the oncomplete event handler */ |
277 | if (event == 'Complete') |
278 | this.transport.onreadystatechange = Prototype.emptyFunction; |
279 | } |
280 | }); |
281 | |
282 | Ajax.Updater = Class.create(); |
283 | Ajax.Updater.ScriptFragment = '(?:<script.*?>)((\n|.)*?)(?:<\/script>)'; |
284 | |
285 | Ajax.Updater.prototype.extend(Ajax.Request.prototype).extend({ |
286 | initialize: function(container, url, options) { |
287 | this.containers = { |
288 | success: container.success ? $(container.success) : $(container), |
289 | failure: container.failure ? $(container.failure) : |
290 | (container.success ? null : $(container)) |
291 | } |
292 | |
293 | this.transport = Ajax.getTransport(); |
294 | this.setOptions(options); |
295 | |
296 | var onComplete = this.options.onComplete || Prototype.emptyFunction; |
297 | this.options.onComplete = (function() { |
298 | this.updateContent(); |
299 | onComplete(this.transport); |
300 | }).bind(this); |
301 | |
302 | this.request(url); |
303 | }, |
304 | |
305 | updateContent: function() { |
306 | var receiver = this.responseIsSuccess() ? |
307 | this.containers.success : this.containers.failure; |
308 | |
309 | var match = new RegExp(Ajax.Updater.ScriptFragment, 'img'); |
310 | var response = this.transport.responseText.replace(match, ''); |
311 | var scripts = this.transport.responseText.match(match); |
312 | |
313 | if (receiver) { |
314 | if (this.options.insertion) { |
315 | new this.options.insertion(receiver, response); |
316 | } else { |
317 | receiver.innerHTML = response; |
318 | } |
319 | } |
320 | |
321 | if (this.responseIsSuccess()) { |
322 | if (this.onComplete) |
323 | setTimeout((function() {this.onComplete( |
324 | this.transport)}).bind(this), 10); |
325 | } |
326 | |
327 | if (this.options.evalScripts && scripts) { |
328 | match = new RegExp(Ajax.Updater.ScriptFragment, 'im'); |
329 | setTimeout((function() { |
330 | for (var i = 0; i < scripts.length; i++) |
331 | eval(scripts[i].match(match)[1]); |
332 | }).bind(this), 10); |
333 | } |
334 | } |
335 | }); |
336 | |
337 | Ajax.PeriodicalUpdater = Class.create(); |
338 | Ajax.PeriodicalUpdater.prototype = (new Ajax.Base()).extend({ |
339 | initialize: function(container, url, options) { |
340 | this.setOptions(options); |
341 | this.onComplete = this.options.onComplete; |
342 | |
343 | this.frequency = (this.options.frequency || 2); |
344 | this.decay = 1; |
345 | |
346 | this.updater = {}; |
347 | this.container = container; |
348 | this.url = url; |
349 | |
350 | this.start(); |
351 | }, |
352 | |
353 | start: function() { |
354 | this.options.onComplete = this.updateComplete.bind(this); |
355 | this.onTimerEvent(); |
356 | }, |
357 | |
358 | stop: function() { |
359 | this.updater.onComplete = undefined; |
360 | clearTimeout(this.timer); |
361 | (this.onComplete || Ajax.emptyFunction).apply(this, arguments); |
362 | }, |
363 | |
364 | updateComplete: function(request) { |
365 | if (this.options.decay) { |
366 | this.decay = (request.responseText == this.lastText ? |
367 | this.decay * this.options.decay : 1); |
368 | |
369 | this.lastText = request.responseText; |
370 | } |
371 | this.timer = setTimeout(this.onTimerEvent.bind(this), |
372 | this.decay * this.frequency * 1000); |
373 | }, |
374 | |
375 | onTimerEvent: function() { |
376 | this.updater = new Ajax.Updater(this.container, this.url, this.options); |
377 | } |
378 | }); |
379 | |
380 | document.getElementsByClassName = function(className) { |
381 | var children = document.getElementsByTagName('*') || document.all; |
382 | var elements = new Array(); |
383 | |
384 | for (var i = 0; i < children.length; i++) { |
385 | var child = children[i]; |
386 | var classNames = child.className.split(' '); |
387 | for (var j = 0; j < classNames.length; j++) { |
388 | if (classNames[j] == className) { |
389 | elements.push(child); |
390 | break; |
391 | } |
392 | } |
393 | } |
394 | |
395 | return elements; |
396 | } |
397 | |
398 | /*--------------------------------------------------------------------------*/ |
399 | |
400 | if (!window.Element) { |
401 | var Element = new Object(); |
402 | } |
403 | |
404 | Object.extend(Element, { |
405 | toggle: function() { |
406 | for (var i = 0; i < arguments.length; i++) { |
407 | var element = $(arguments[i]); |
408 | element.style.display = |
409 | (element.style.display == 'none' ? '' : 'none'); |
410 | } |
411 | }, |
412 | |
413 | hide: function() { |
414 | for (var i = 0; i < arguments.length; i++) { |
415 | var element = $(arguments[i]); |
416 | element.style.display = 'none'; |
417 | } |
418 | }, |
419 | |
420 | show: function() { |
421 | for (var i = 0; i < arguments.length; i++) { |
422 | var element = $(arguments[i]); |
423 | element.style.display = ''; |
424 | } |
425 | }, |
426 | |
427 | remove: function(element) { |
428 | element = $(element); |
429 | element.parentNode.removeChild(element); |
430 | }, |
431 | |
432 | getHeight: function(element) { |
433 | element = $(element); |
434 | return element.offsetHeight; |
435 | }, |
436 | |
437 | hasClassName: function(element, className) { |
438 | element = $(element); |
439 | if (!element) |
440 | return; |
441 | var a = element.className.split(' '); |
442 | for (var i = 0; i < a.length; i++) { |
443 | if (a[i] == className) |
444 | return true; |
445 | } |
446 | return false; |
447 | }, |
448 | |
449 | addClassName: function(element, className) { |
450 | element = $(element); |
451 | Element.removeClassName(element, className); |
452 | element.className += ' ' + className; |
453 | }, |
454 | |
455 | removeClassName: function(element, className) { |
456 | element = $(element); |
457 | if (!element) |
458 | return; |
459 | var newClassName = ''; |
460 | var a = element.className.split(' '); |
461 | for (var i = 0; i < a.length; i++) { |
462 | if (a[i] != className) { |
463 | if (i > 0) |
464 | newClassName += ' '; |
465 | newClassName += a[i]; |
466 | } |
467 | } |
468 | element.className = newClassName; |
469 | }, |
470 | |
471 | // removes whitespace-only text node children |
472 | cleanWhitespace: function(element) { |
473 | var element = $(element); |
474 | for (var i = 0; i < element.childNodes.length; i++) { |
475 | var node = element.childNodes[i]; |
476 | if (node.nodeType == 3 && !/\S/.test(node.nodeValue)) |
477 | Element.remove(node); |
478 | } |
479 | } |
480 | }); |
481 | |
482 | var Toggle = new Object(); |
483 | Toggle.display = Element.toggle; |
484 | |
485 | /*--------------------------------------------------------------------------*/ |
486 | |
487 | Abstract.Insertion = function(adjacency) { |
488 | this.adjacency = adjacency; |
489 | } |
490 | |
491 | Abstract.Insertion.prototype = { |
492 | initialize: function(element, content) { |
493 | this.element = $(element); |
494 | this.content = content; |
495 | |
496 | if (this.adjacency && this.element.insertAdjacentHTML) { |
497 | this.element.insertAdjacentHTML(this.adjacency, this.content); |
498 | } else { |
499 | this.range = this.element.ownerDocument.createRange(); |
500 | if (this.initializeRange) this.initializeRange(); |
501 | this.fragment = this.range.createContextualFragment(this.content); |
502 | this.insertContent(); |
503 | } |
504 | } |
505 | } |
506 | |
507 | var Insertion = new Object(); |
508 | |
509 | Insertion.Before = Class.create(); |
510 | Insertion.Before.prototype = (new Abstract.Insertion('beforeBegin')).extend({ |
511 | initializeRange: function() { |
512 | this.range.setStartBefore(this.element); |
513 | }, |
514 | |
515 | insertContent: function() { |
516 | this.element.parentNode.insertBefore(this.fragment, this.element); |
517 | } |
518 | }); |
519 | |
520 | Insertion.Top = Class.create(); |
521 | Insertion.Top.prototype = (new Abstract.Insertion('afterBegin')).extend({ |
522 | initializeRange: function() { |
523 | this.range.selectNodeContents(this.element); |
524 | this.range.collapse(true); |
525 | }, |
526 | |
527 | insertContent: function() { |
528 | this.element.insertBefore(this.fragment, this.element.firstChild); |
529 | } |
530 | }); |
531 | |
532 | Insertion.Bottom = Class.create(); |
533 | Insertion.Bottom.prototype = (new Abstract.Insertion('beforeEnd')).extend({ |
534 | initializeRange: function() { |
535 | this.range.selectNodeContents(this.element); |
536 | this.range.collapse(this.element); |
537 | }, |
538 | |
539 | insertContent: function() { |
540 | this.element.appendChild(this.fragment); |
541 | } |
542 | }); |
543 | |
544 | Insertion.After = Class.create(); |
545 | Insertion.After.prototype = (new Abstract.Insertion('afterEnd')).extend({ |
546 | initializeRange: function() { |
547 | this.range.setStartAfter(this.element); |
548 | }, |
549 | |
550 | insertContent: function() { |
551 | this.element.parentNode.insertBefore(this.fragment, |
552 | this.element.nextSibling); |
553 | } |
554 | }); |
555 | |
556 | var Field = { |
557 | clear: function() { |
558 | for (var i = 0; i < arguments.length; i++) |
559 | $(arguments[i]).value = ''; |
560 | }, |
561 | |
562 | focus: function(element) { |
563 | $(element).focus(); |
564 | }, |
565 | |
566 | present: function() { |
567 | for (var i = 0; i < arguments.length; i++) |
568 | if ($(arguments[i]).value == '') return false; |
569 | return true; |
570 | }, |
571 | |
572 | select: function(element) { |
573 | $(element).select(); |
574 | }, |
575 | |
576 | activate: function(element) { |
577 | $(element).focus(); |
578 | $(element).select(); |
579 | } |
580 | } |
581 | |
582 | /*--------------------------------------------------------------------------*/ |
583 | |
584 | var Form = { |
585 | serialize: function(form) { |
586 | var elements = Form.getElements($(form)); |
587 | var queryComponents = new Array(); |
588 | |
589 | for (var i = 0; i < elements.length; i++) { |
590 | var queryComponent = Form.Element.serialize(elements[i]); |
591 | if (queryComponent) |
592 | queryComponents.push(queryComponent); |
593 | } |
594 | |
595 | return queryComponents.join('&'); |
596 | }, |
597 | |
598 | getElements: function(form) { |
599 | var form = $(form); |
600 | var elements = new Array(); |
601 | |
602 | for (tagName in Form.Element.Serializers) { |
603 | var tagElements = form.getElementsByTagName(tagName); |
604 | for (var j = 0; j < tagElements.length; j++) |
605 | elements.push(tagElements[j]); |
606 | } |
607 | return elements; |
608 | }, |
609 | |
610 | getInputs: function(form, typeName, name) { |
611 | var form = $(form); |
612 | var inputs = form.getElementsByTagName('input'); |
613 | |
614 | if (!typeName && !name) |
615 | return inputs; |
616 | |
617 | var matchingInputs = new Array(); |
618 | for (var i = 0; i < inputs.length; i++) { |
619 | var input = inputs[i]; |
620 | if ((typeName && input.type != typeName) || |
621 | (name && input.name != name)) |
622 | continue; |
623 | matchingInputs.push(input); |
624 | } |
625 | |
626 | return matchingInputs; |
627 | }, |
628 | |
629 | disable: function(form) { |
630 | var elements = Form.getElements(form); |
631 | for (var i = 0; i < elements.length; i++) { |
632 | var element = elements[i]; |
633 | element.blur(); |
634 | element.disabled = 'true'; |
635 | } |
636 | }, |
637 | |
638 | enable: function(form) { |
639 | var elements = Form.getElements(form); |
640 | for (var i = 0; i < elements.length; i++) { |
641 | var element = elements[i]; |
642 | element.disabled = ''; |
643 | } |
644 | }, |
645 | |
646 | focusFirstElement: function(form) { |
647 | var form = $(form); |
648 | var elements = Form.getElements(form); |
649 | for (var i = 0; i < elements.length; i++) { |
650 | var element = elements[i]; |
651 | if (element.type != 'hidden' && !element.disabled) { |
652 | Field.activate(element); |
653 | break; |
654 | } |
655 | } |
656 | }, |
657 | |
658 | reset: function(form) { |
659 | $(form).reset(); |
660 | } |
661 | } |
662 | |
663 | Form.Element = { |
664 | serialize: function(element) { |
665 | var element = $(element); |
666 | var method = element.tagName.toLowerCase(); |
667 | var parameter = Form.Element.Serializers[method](element); |
668 | |
669 | if (parameter) |
670 | return encodeURIComponent(parameter[0]) + '=' + |
671 | encodeURIComponent(parameter[1]); |
672 | }, |
673 | |
674 | getValue: function(element) { |
675 | var element = $(element); |
676 | var method = element.tagName.toLowerCase(); |
677 | var parameter = Form.Element.Serializers[method](element); |
678 | |
679 | if (parameter) |
680 | return parameter[1]; |
681 | } |
682 | } |
683 | |
684 | Form.Element.Serializers = { |
685 | input: function(element) { |
686 | switch (element.type.toLowerCase()) { |
687 | case 'submit': |
688 | case 'hidden': |
689 | case 'password': |
690 | case 'text': |
691 | return Form.Element.Serializers.textarea(element); |
692 | case 'checkbox': |
693 | case 'radio': |
694 | return Form.Element.Serializers.inputSelector(element); |
695 | } |
696 | return false; |
697 | }, |
698 | |
699 | inputSelector: function(element) { |
700 | if (element.checked) |
701 | return [element.name, element.value]; |
702 | }, |
703 | |
704 | textarea: function(element) { |
705 | return [element.name, element.value]; |
706 | }, |
707 | |
708 | select: function(element) { |
709 | var value = ''; |
710 | if (element.type == 'select-one') { |
711 | var index = element.selectedIndex; |
712 | if (index >= 0) |
713 | value = element.options[index].value || element.options[index].text; |
714 | } else { |
715 | value = new Array(); |
716 | for (var i = 0; i < element.length; i++) { |
717 | var opt = element.options[i]; |
718 | if (opt.selected) |
719 | value.push(opt.value || opt.text); |
720 | } |
721 | } |
722 | return [element.name, value]; |
723 | } |
724 | } |
725 | |
726 | /*--------------------------------------------------------------------------*/ |
727 | |
728 | var $F = Form.Element.getValue; |
729 | |
730 | /*--------------------------------------------------------------------------*/ |
731 | |
732 | Abstract.TimedObserver = function() {} |
733 | Abstract.TimedObserver.prototype = { |
734 | initialize: function(element, frequency, callback) { |
735 | this.frequency = frequency; |
736 | this.element = $(element); |
737 | this.callback = callback; |
738 | |
739 | this.lastValue = this.getValue(); |
740 | this.registerCallback(); |
741 | }, |
742 | |
743 | registerCallback: function() { |
744 | setInterval(this.onTimerEvent.bind(this), this.frequency * 1000); |
745 | }, |
746 | |
747 | onTimerEvent: function() { |
748 | var value = this.getValue(); |
749 | if (this.lastValue != value) { |
750 | this.callback(this.element, value); |
751 | this.lastValue = value; |
752 | } |
753 | } |
754 | } |
755 | |
756 | Form.Element.Observer = Class.create(); |
757 | Form.Element.Observer.prototype = (new Abstract.TimedObserver()).extend({ |
758 | getValue: function() { |
759 | return Form.Element.getValue(this.element); |
760 | } |
761 | }); |
762 | |
763 | Form.Observer = Class.create(); |
764 | Form.Observer.prototype = (new Abstract.TimedObserver()).extend({ |
765 | getValue: function() { |
766 | return Form.serialize(this.element); |
767 | } |
768 | }); |
769 | |
770 | /*--------------------------------------------------------------------------*/ |
771 | |
772 | Abstract.EventObserver = function() {} |
773 | Abstract.EventObserver.prototype = { |
774 | initialize: function(element, callback) { |
775 | this.element = $(element); |
776 | this.callback = callback; |
777 | |
778 | this.lastValue = this.getValue(); |
779 | if (this.element.tagName.toLowerCase() == 'form') |
780 | this.registerFormCallbacks(); |
781 | else |
782 | this.registerCallback(this.element); |
783 | }, |
784 | |
785 | onElementEvent: function() { |
786 | var value = this.getValue(); |
787 | if (this.lastValue != value) { |
788 | this.callback(this.element, value); |
789 | this.lastValue = value; |
790 | } |
791 | }, |
792 | |
793 | registerFormCallbacks: function() { |
794 | var elements = Form.getElements(this.element); |
795 | for (var i = 0; i < elements.length; i++) |
796 | this.registerCallback(elements[i]); |
797 | }, |
798 | |
799 | registerCallback: function(element) { |
800 | if (element.type) { |
801 | switch (element.type.toLowerCase()) { |
802 | case 'checkbox': |
803 | case 'radio': |
804 | element.target = this; |
805 | element.prev_onclick = element.onclick || Prototype.emptyFunction; |
806 | element.onclick = function() { |
807 | this.prev_onclick(); |
808 | this.target.onElementEvent(); |
809 | } |
810 | break; |
811 | case 'password': |
812 | case 'text': |
813 | case 'textarea': |
814 | case 'select-one': |
815 | case 'select-multiple': |
816 | element.target = this; |
817 | element.prev_onchange = element.onchange || Prototype.emptyFunction; |
818 | element.onchange = function() { |
819 | this.prev_onchange(); |
820 | this.target.onElementEvent(); |
821 | } |
822 | break; |
823 | } |
824 | } |
825 | } |
826 | } |
827 | |
828 | Form.Element.EventObserver = Class.create(); |
829 | Form.Element.EventObserver.prototype = (new Abstract.EventObserver()).extend({ |
830 | getValue: function() { |
831 | return Form.Element.getValue(this.element); |
832 | } |
833 | }); |
834 | |
835 | Form.EventObserver = Class.create(); |
836 | Form.EventObserver.prototype = (new Abstract.EventObserver()).extend({ |
837 | getValue: function() { |
838 | return Form.serialize(this.element); |
839 | } |
840 | }); |
841 | |
842 | |
843 | if (!window.Event) { |
844 | var Event = new Object(); |
845 | } |
846 | |
847 | Object.extend(Event, { |
848 | KEY_BACKSPACE: 8, |
849 | KEY_TAB: 9, |
850 | KEY_RETURN: 13, |
851 | KEY_ESC: 27, |
852 | KEY_LEFT: 37, |
853 | KEY_UP: 38, |
854 | KEY_RIGHT: 39, |
855 | KEY_DOWN: 40, |
856 | KEY_DELETE: 46, |
857 | |
858 | element: function(event) { |
859 | return event.target || event.srcElement; |
860 | }, |
861 | |
862 | isLeftClick: function(event) { |
863 | return (((event.which) && (event.which == 1)) || |
864 | ((event.button) && (event.button == 1))); |
865 | }, |
866 | |
867 | pointerX: function(event) { |
868 | return event.pageX || (event.clientX + |
869 | (document.documentElement.scrollLeft || document.body.scrollLeft)); |
870 | }, |
871 | |
872 | pointerY: function(event) { |
873 | return event.pageY || (event.clientY + |
874 | (document.documentElement.scrollTop || document.body.scrollTop)); |
875 | }, |
876 | |
877 | stop: function(event) { |
878 | if (event.preventDefault) { |
879 | event.preventDefault(); |
880 | event.stopPropagation(); |
881 | } else { |
882 | event.returnValue = false; |
883 | } |
884 | }, |
885 | |
886 | // find the first node with the given tagName, starting from the |
887 | // node the event was triggered on; traverses the DOM upwards |
888 | findElement: function(event, tagName) { |
889 | var element = Event.element(event); |
890 | while (element.parentNode && (!element.tagName || |
891 | (element.tagName.toUpperCase() != tagName.toUpperCase()))) |
892 | element = element.parentNode; |
893 | return element; |
894 | }, |
895 | |
896 | observers: false, |
897 | |
898 | _observeAndCache: function(element, name, observer, useCapture) { |
899 | if (!this.observers) this.observers = []; |
900 | if (element.addEventListener) { |
901 | this.observers.push([element, name, observer, useCapture]); |
902 | element.addEventListener(name, observer, useCapture); |
903 | } else if (element.attachEvent) { |
904 | this.observers.push([element, name, observer, useCapture]); |
905 | element.attachEvent('on' + name, observer); |
906 | } |
907 | }, |
908 | |
909 | unloadCache: function() { |
910 | if (!Event.observers) return; |
911 | for (var i = 0; i < Event.observers.length; i++) { |
912 | Event.stopObserving.apply(this, Event.observers[i]); |
913 | Event.observers[i][0] = null; |
914 | } |
915 | Event.observers = false; |
916 | }, |
917 | |
918 | observe: function(element, name, observer, useCapture) { |
919 | var element = $(element); |
920 | useCapture = useCapture || false; |
921 | |
922 | if (name == 'keypress' && |
923 | ((navigator.appVersion.indexOf('AppleWebKit') > 0) |
924 | || element.attachEvent)) |
925 | name = 'keydown'; |
926 | |
927 | this._observeAndCache(element, name, observer, useCapture); |
928 | }, |
929 | |
930 | stopObserving: function(element, name, observer, useCapture) { |
931 | var element = $(element); |
932 | useCapture = useCapture || false; |
933 | |
934 | if (name == 'keypress' && |
935 | ((navigator.appVersion.indexOf('AppleWebKit') > 0) |
936 | || element.detachEvent)) |
937 | name = 'keydown'; |
938 | |
939 | if (element.removeEventListener) { |
940 | element.removeEventListener(name, observer, useCapture); |
941 | } else if (element.detachEvent) { |
942 | element.detachEvent('on' + name, observer); |
943 | } |
944 | } |
945 | }); |
946 | |
947 | /* prevent memory leaks in IE */ |
948 | Event.observe(window, 'unload', Event.unloadCache, false); |
949 | |
950 | var Position = { |
951 | |
952 | // set to true if needed, warning: firefox performance problems |
953 | // NOT neeeded for page scrolling, only if draggable contained in |
954 | // scrollable elements |
955 | includeScrollOffsets: false, |
956 | |
957 | // must be called before calling withinIncludingScrolloffset, every time the |
958 | // page is scrolled |
959 | prepare: function() { |
960 | this.deltaX = window.pageXOffset |
961 | || document.documentElement.scrollLeft |
962 | || document.body.scrollLeft |
963 | || 0; |
964 | this.deltaY = window.pageYOffset |
965 | || document.documentElement.scrollTop |
966 | || document.body.scrollTop |
967 | || 0; |
968 | }, |
969 | |
970 | realOffset: function(element) { |
971 | var valueT = 0, valueL = 0; |
972 | do { |
973 | valueT += element.scrollTop || 0; |
974 | valueL += element.scrollLeft || 0; |
975 | element = element.parentNode; |
976 | } while (element); |
977 | return [valueL, valueT]; |
978 | }, |
979 | |
980 | cumulativeOffset: function(element) { |
981 | var valueT = 0, valueL = 0; |
982 | do { |
983 | valueT += element.offsetTop || 0; |
984 | valueL += element.offsetLeft || 0; |
985 | element = element.offsetParent; |
986 | } while (element); |
987 | return [valueL, valueT]; |
988 | }, |
989 | |
990 | // caches x/y coordinate pair to use with overlap |
991 | within: function(element, x, y) { |
992 | if (this.includeScrollOffsets) |
993 | return this.withinIncludingScrolloffsets(element, x, y); |
994 | this.xcomp = x; |
995 | this.ycomp = y; |
996 | this.offset = this.cumulativeOffset(element); |
997 | |
998 | return (y >= this.offset[1] && |
999 | y < this.offset[1] + element.offsetHeight && |
1000 | x >= this.offset[0] && |
1001 | x < this.offset[0] + element.offsetWidth); |
1002 | }, |
1003 | |
1004 | withinIncludingScrolloffsets: function(element, x, y) { |
1005 | var offsetcache = this.realOffset(element); |
1006 | |
1007 | this.xcomp = x + offsetcache[0] - this.deltaX; |
1008 | this.ycomp = y + offsetcache[1] - this.deltaY; |
1009 | this.offset = this.cumulativeOffset(element); |
1010 | |
1011 | return (this.ycomp >= this.offset[1] && |
1012 | this.ycomp < this.offset[1] + element.offsetHeight && |
1013 | this.xcomp >= this.offset[0] && |
1014 | this.xcomp < this.offset[0] + element.offsetWidth); |
1015 | }, |
1016 | |
1017 | // within must be called directly before |
1018 | overlap: function(mode, element) { |
1019 | if (!mode) return 0; |
1020 | if (mode == 'vertical') |
1021 | return ((this.offset[1] + element.offsetHeight) - this.ycomp) / |
1022 | element.offsetHeight; |
1023 | if (mode == 'horizontal') |
1024 | return ((this.offset[0] + element.offsetWidth) - this.xcomp) / |
1025 | element.offsetWidth; |
1026 | }, |
1027 | |
1028 | clone: function(source, target) { |
1029 | source = $(source); |
1030 | target = $(target); |
1031 | target.style.position = 'absolute'; |
1032 | var offsets = this.cumulativeOffset(source); |
1033 | target.style.top = offsets[1] + 'px'; |
1034 | target.style.left = offsets[0] + 'px'; |
1035 | target.style.width = source.offsetWidth + 'px'; |
1036 | target.style.height = source.offsetHeight + 'px'; |
1037 | } |
1038 | } |