| 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 | } |
| 1782 | No newline at end of file |