--- /dev/null
+/* Prototype JavaScript framework, version 1.4.0
+ * (c) 2005 Sam Stephenson <sam@conio.net>
+ *
+ * Prototype is freely distributable under the terms of an MIT-style license.
+ * For details, see the Prototype web site: http://prototype.conio.net/
+ *
+/*--------------------------------------------------------------------------*/
+
+var Prototype = {
+ Version: '1.4.0',
+ ScriptFragment: '(?:<script.*?>)((\n|\r|.)*?)(?:<\/script>)',
+
+ emptyFunction: function() {},
+ K: function(x) {return x}
+}
+
+var Class = {
+ create: function() {
+ return function() {
+ this.initialize.apply(this, arguments);
+ }
+ }
+}
+
+var Abstract = new Object();
+
+Object.extend = function(destination, source) {
+ for (property in source) {
+ destination[property] = source[property];
+ }
+ return destination;
+}
+
+Object.inspect = function(object) {
+ try {
+ if (object == undefined) return 'undefined';
+ if (object == null) return 'null';
+ return object.inspect ? object.inspect() : object.toString();
+ } catch (e) {
+ if (e instanceof RangeError) return '...';
+ throw e;
+ }
+}
+
+Function.prototype.bind = function() {
+ var __method = this, args = $A(arguments), object = args.shift();
+ return function() {
+ return __method.apply(object, args.concat($A(arguments)));
+ }
+}
+
+Function.prototype.bindAsEventListener = function(object) {
+ var __method = this;
+ return function(event) {
+ return __method.call(object, event || window.event);
+ }
+}
+
+Object.extend(Number.prototype, {
+ toColorPart: function() {
+ var digits = this.toString(16);
+ if (this < 16) return '0' + digits;
+ return digits;
+ },
+
+ succ: function() {
+ return this + 1;
+ },
+
+ times: function(iterator) {
+ $R(0, this, true).each(iterator);
+ return this;
+ }
+});
+
+var Try = {
+ these: function() {
+ var returnValue;
+
+ for (var i = 0; i < arguments.length; i++) {
+ var lambda = arguments[i];
+ try {
+ returnValue = lambda();
+ break;
+ } catch (e) {}
+ }
+
+ return returnValue;
+ }
+}
+
+/*--------------------------------------------------------------------------*/
+
+var PeriodicalExecuter = Class.create();
+PeriodicalExecuter.prototype = {
+ initialize: function(callback, frequency) {
+ this.callback = callback;
+ this.frequency = frequency;
+ this.currentlyExecuting = false;
+
+ this.registerCallback();
+ },
+
+ registerCallback: function() {
+ setInterval(this.onTimerEvent.bind(this), this.frequency * 1000);
+ },
+
+ onTimerEvent: function() {
+ if (!this.currentlyExecuting) {
+ try {
+ this.currentlyExecuting = true;
+ this.callback();
+ } finally {
+ this.currentlyExecuting = false;
+ }
+ }
+ }
+}
+
+/*--------------------------------------------------------------------------*/
+
+function $() {
+ var elements = new Array();
+
+ for (var i = 0; i < arguments.length; i++) {
+ var element = arguments[i];
+ if (typeof element == 'string')
+ element = document.getElementById(element);
+
+ if (arguments.length == 1)
+ return element;
+
+ elements.push(element);
+ }
+
+ return elements;
+}
+Object.extend(String.prototype, {
+ stripTags: function() {
+ return this.replace(/<\/?[^>]+>/gi, '');
+ },
+
+ stripScripts: function() {
+ return this.replace(new RegExp(Prototype.ScriptFragment, 'img'), '');
+ },
+
+ extractScripts: function() {
+ var matchAll = new RegExp(Prototype.ScriptFragment, 'img');
+ var matchOne = new RegExp(Prototype.ScriptFragment, 'im');
+ return (this.match(matchAll) || []).map(function(scriptTag) {
+ return (scriptTag.match(matchOne) || ['', ''])[1];
+ });
+ },
+
+ evalScripts: function() {
+ return this.extractScripts().map(eval);
+ },
+
+ escapeHTML: function() {
+ var div = document.createElement('div');
+ var text = document.createTextNode(this);
+ div.appendChild(text);
+ return div.innerHTML;
+ },
+
+ unescapeHTML: function() {
+ var div = document.createElement('div');
+ div.innerHTML = this.stripTags();
+ return div.childNodes[0] ? div.childNodes[0].nodeValue : '';
+ },
+
+ toQueryParams: function() {
+ var pairs = this.match(/^\??(.*)$/)[1].split('&');
+ return pairs.inject({}, function(params, pairString) {
+ var pair = pairString.split('=');
+ params[pair[0]] = pair[1];
+ return params;
+ });
+ },
+
+ toArray: function() {
+ return this.split('');
+ },
+
+ camelize: function() {
+ var oStringList = this.split('-');
+ if (oStringList.length == 1) return oStringList[0];
+
+ var camelizedString = this.indexOf('-') == 0
+ ? oStringList[0].charAt(0).toUpperCase() + oStringList[0].substring(1)
+ : oStringList[0];
+
+ for (var i = 1, len = oStringList.length; i < len; i++) {
+ var s = oStringList[i];
+ camelizedString += s.charAt(0).toUpperCase() + s.substring(1);
+ }
+
+ return camelizedString;
+ },
+
+ inspect: function() {
+ return "'" + this.replace('\\', '\\\\').replace("'", '\\\'') + "'";
+ }
+});
+
+String.prototype.parseQuery = String.prototype.toQueryParams;
+
+var $break = new Object();
+var $continue = new Object();
+
+var Enumerable = {
+ each: function(iterator) {
+ var index = 0;
+ try {
+ this._each(function(value) {
+ try {
+ iterator(value, index++);
+ } catch (e) {
+ if (e != $continue) throw e;
+ }
+ });
+ } catch (e) {
+ if (e != $break) throw e;
+ }
+ },
+
+ all: function(iterator) {
+ var result = true;
+ this.each(function(value, index) {
+ result = result && !!(iterator || Prototype.K)(value, index);
+ if (!result) throw $break;
+ });
+ return result;
+ },
+
+ any: function(iterator) {
+ var result = true;
+ this.each(function(value, index) {
+ if (result = !!(iterator || Prototype.K)(value, index))
+ throw $break;
+ });
+ return result;
+ },
+
+ collect: function(iterator) {
+ var results = [];
+ this.each(function(value, index) {
+ results.push(iterator(value, index));
+ });
+ return results;
+ },
+
+ detect: function (iterator) {
+ var result;
+ this.each(function(value, index) {
+ if (iterator(value, index)) {
+ result = value;
+ throw $break;
+ }
+ });
+ return result;
+ },
+
+ findAll: function(iterator) {
+ var results = [];
+ this.each(function(value, index) {
+ if (iterator(value, index))
+ results.push(value);
+ });
+ return results;
+ },
+
+ grep: function(pattern, iterator) {
+ var results = [];
+ this.each(function(value, index) {
+ var stringValue = value.toString();
+ if (stringValue.match(pattern))
+ results.push((iterator || Prototype.K)(value, index));
+ })
+ return results;
+ },
+
+ include: function(object) {
+ var found = false;
+ this.each(function(value) {
+ if (value == object) {
+ found = true;
+ throw $break;
+ }
+ });
+ return found;
+ },
+
+ inject: function(memo, iterator) {
+ this.each(function(value, index) {
+ memo = iterator(memo, value, index);
+ });
+ return memo;
+ },
+
+ invoke: function(method) {
+ var args = $A(arguments).slice(1);
+ return this.collect(function(value) {
+ return value[method].apply(value, args);
+ });
+ },
+
+ max: function(iterator) {
+ var result;
+ this.each(function(value, index) {
+ value = (iterator || Prototype.K)(value, index);
+ if (value >= (result || value))
+ result = value;
+ });
+ return result;
+ },
+
+ min: function(iterator) {
+ var result;
+ this.each(function(value, index) {
+ value = (iterator || Prototype.K)(value, index);
+ if (value <= (result || value))
+ result = value;
+ });
+ return result;
+ },
+
+ partition: function(iterator) {
+ var trues = [], falses = [];
+ this.each(function(value, index) {
+ ((iterator || Prototype.K)(value, index) ?
+ trues : falses).push(value);
+ });
+ return [trues, falses];
+ },
+
+ pluck: function(property) {
+ var results = [];
+ this.each(function(value, index) {
+ results.push(value[property]);
+ });
+ return results;
+ },
+
+ reject: function(iterator) {
+ var results = [];
+ this.each(function(value, index) {
+ if (!iterator(value, index))
+ results.push(value);
+ });
+ return results;
+ },
+
+ sortBy: function(iterator) {
+ return this.collect(function(value, index) {
+ return {value: value, criteria: iterator(value, index)};
+ }).sort(function(left, right) {
+ var a = left.criteria, b = right.criteria;
+ return a < b ? -1 : a > b ? 1 : 0;
+ }).pluck('value');
+ },
+
+ toArray: function() {
+ return this.collect(Prototype.K);
+ },
+
+ zip: function() {
+ var iterator = Prototype.K, args = $A(arguments);
+ if (typeof args.last() == 'function')
+ iterator = args.pop();
+
+ var collections = [this].concat(args).map($A);
+ return this.map(function(value, index) {
+ iterator(value = collections.pluck(index));
+ return value;
+ });
+ },
+
+ inspect: function() {
+ return '#<Enumerable:' + this.toArray().inspect() + '>';
+ }
+}
+
+Object.extend(Enumerable, {
+ map: Enumerable.collect,
+ find: Enumerable.detect,
+ select: Enumerable.findAll,
+ member: Enumerable.include,
+ entries: Enumerable.toArray
+});
+var $A = Array.from = function(iterable) {
+ if (!iterable) return [];
+ if (iterable.toArray) {
+ return iterable.toArray();
+ } else {
+ var results = [];
+ for (var i = 0; i < iterable.length; i++)
+ results.push(iterable[i]);
+ return results;
+ }
+}
+
+Object.extend(Array.prototype, Enumerable);
+
+Array.prototype._reverse = Array.prototype.reverse;
+
+Object.extend(Array.prototype, {
+ _each: function(iterator) {
+ for (var i = 0; i < this.length; i++)
+ iterator(this[i]);
+ },
+
+ clear: function() {
+ this.length = 0;
+ return this;
+ },
+
+ first: function() {
+ return this[0];
+ },
+
+ last: function() {
+ return this[this.length - 1];
+ },
+
+ compact: function() {
+ return this.select(function(value) {
+ return value != undefined || value != null;
+ });
+ },
+
+ flatten: function() {
+ return this.inject([], function(array, value) {
+ return array.concat(value.constructor == Array ?
+ value.flatten() : [value]);
+ });
+ },
+
+ without: function() {
+ var values = $A(arguments);
+ return this.select(function(value) {
+ return !values.include(value);
+ });
+ },
+
+ indexOf: function(object) {
+ for (var i = 0; i < this.length; i++)
+ if (this[i] == object) return i;
+ return -1;
+ },
+
+ reverse: function(inline) {
+ return (inline !== false ? this : this.toArray())._reverse();
+ },
+
+ shift: function() {
+ var result = this[0];
+ for (var i = 0; i < this.length - 1; i++)
+ this[i] = this[i + 1];
+ this.length--;
+ return result;
+ },
+
+ inspect: function() {
+ return '[' + this.map(Object.inspect).join(', ') + ']';
+ }
+});
+var Hash = {
+ _each: function(iterator) {
+ for (key in this) {
+ var value = this[key];
+ if (typeof value == 'function') continue;
+
+ var pair = [key, value];
+ pair.key = key;
+ pair.value = value;
+ iterator(pair);
+ }
+ },
+
+ keys: function() {
+ return this.pluck('key');
+ },
+
+ values: function() {
+ return this.pluck('value');
+ },
+
+ merge: function(hash) {
+ return $H(hash).inject($H(this), function(mergedHash, pair) {
+ mergedHash[pair.key] = pair.value;
+ return mergedHash;
+ });
+ },
+
+ toQueryString: function() {
+ return this.map(function(pair) {
+ return pair.map(encodeURIComponent).join('=');
+ }).join('&');
+ },
+
+ inspect: function() {
+ return '#<Hash:{' + this.map(function(pair) {
+ return pair.map(Object.inspect).join(': ');
+ }).join(', ') + '}>';
+ }
+}
+
+function $H(object) {
+ var hash = Object.extend({}, object || {});
+ Object.extend(hash, Enumerable);
+ Object.extend(hash, Hash);
+ return hash;
+}
+ObjectRange = Class.create();
+Object.extend(ObjectRange.prototype, Enumerable);
+Object.extend(ObjectRange.prototype, {
+ initialize: function(start, end, exclusive) {
+ this.start = start;
+ this.end = end;
+ this.exclusive = exclusive;
+ },
+
+ _each: function(iterator) {
+ var value = this.start;
+ do {
+ iterator(value);
+ value = value.succ();
+ } while (this.include(value));
+ },
+
+ include: function(value) {
+ if (value < this.start)
+ return false;
+ if (this.exclusive)
+ return value < this.end;
+ return value <= this.end;
+ }
+});
+
+var $R = function(start, end, exclusive) {
+ return new ObjectRange(start, end, exclusive);
+}
+
+var Ajax = {
+ getTransport: function() {
+ return Try.these(
+ function() {return new ActiveXObject('Msxml2.XMLHTTP')},
+ function() {return new ActiveXObject('Microsoft.XMLHTTP')},
+ function() {return new XMLHttpRequest()}
+ ) || false;
+ },
+
+ activeRequestCount: 0
+}
+
+Ajax.Responders = {
+ responders: [],
+
+ _each: function(iterator) {
+ this.responders._each(iterator);
+ },
+
+ register: function(responderToAdd) {
+ if (!this.include(responderToAdd))
+ this.responders.push(responderToAdd);
+ },
+
+ unregister: function(responderToRemove) {
+ this.responders = this.responders.without(responderToRemove);
+ },
+
+ dispatch: function(callback, request, transport, json) {
+ this.each(function(responder) {
+ if (responder[callback] && typeof responder[callback] == 'function') {
+ try {
+ responder[callback].apply(responder, [request, transport, json]);
+ } catch (e) {}
+ }
+ });
+ }
+};
+
+Object.extend(Ajax.Responders, Enumerable);
+
+Ajax.Responders.register({
+ onCreate: function() {
+ Ajax.activeRequestCount++;
+ },
+
+ onComplete: function() {
+ Ajax.activeRequestCount--;
+ }
+});
+
+Ajax.Base = function() {};
+Ajax.Base.prototype = {
+ setOptions: function(options) {
+ this.options = {
+ method: 'post',
+ asynchronous: true,
+ parameters: ''
+ }
+ Object.extend(this.options, options || {});
+ },
+
+ responseIsSuccess: function() {
+ return this.transport.status == undefined
+ || this.transport.status == 0
+ || (this.transport.status >= 200 && this.transport.status < 300);
+ },
+
+ responseIsFailure: function() {
+ return !this.responseIsSuccess();
+ }
+}
+
+Ajax.Request = Class.create();
+Ajax.Request.Events =
+ ['Uninitialized', 'Loading', 'Loaded', 'Interactive', 'Complete'];
+
+Ajax.Request.prototype = Object.extend(new Ajax.Base(), {
+ initialize: function(url, options) {
+ this.transport = Ajax.getTransport();
+ this.setOptions(options);
+ this.request(url);
+ },
+
+ request: function(url) {
+ var parameters = this.options.parameters || '';
+ if (parameters.length > 0) parameters += '&_=';
+
+ try {
+ this.url = url;
+ if (this.options.method == 'get' && parameters.length > 0)
+ this.url += (this.url.match(/\?/) ? '&' : '?') + parameters;
+
+ Ajax.Responders.dispatch('onCreate', this, this.transport);
+
+ this.transport.open(this.options.method, this.url,
+ this.options.asynchronous);
+
+ if (this.options.asynchronous) {
+ this.transport.onreadystatechange = this.onStateChange.bind(this);
+ setTimeout((function() {this.respondToReadyState(1)}).bind(this), 10);
+ }
+
+ this.setRequestHeaders();
+
+ var body = this.options.postBody ? this.options.postBody : parameters;
+ this.transport.send(this.options.method == 'post' ? body : null);
+
+ } catch (e) {
+ this.dispatchException(e);
+ }
+ },
+
+ setRequestHeaders: function() {
+ var requestHeaders =
+ ['X-Requested-With', 'XMLHttpRequest',
+ 'X-Prototype-Version', Prototype.Version];
+
+ if (this.options.method == 'post') {
+ requestHeaders.push('Content-type',
+ 'application/x-www-form-urlencoded');
+
+ /* Force "Connection: close" for Mozilla browsers to work around
+ * a bug where XMLHttpReqeuest sends an incorrect Content-length
+ * header. See Mozilla Bugzilla #246651.
+ */
+ if (this.transport.overrideMimeType)
+ requestHeaders.push('Connection', 'close');
+ }
+
+ if (this.options.requestHeaders)
+ requestHeaders.push.apply(requestHeaders, this.options.requestHeaders);
+
+ for (var i = 0; i < requestHeaders.length; i += 2)
+ this.transport.setRequestHeader(requestHeaders[i], requestHeaders[i+1]);
+ },
+
+ onStateChange: function() {
+ var readyState = this.transport.readyState;
+ if (readyState != 1)
+ this.respondToReadyState(this.transport.readyState);
+ },
+
+ header: function(name) {
+ try {
+ return this.transport.getResponseHeader(name);
+ } catch (e) {}
+ },
+
+ evalJSON: function() {
+ try {
+ return eval(this.header('X-JSON'));
+ } catch (e) {}
+ },
+
+ evalResponse: function() {
+ try {
+ return eval(this.transport.responseText);
+ } catch (e) {
+ this.dispatchException(e);
+ }
+ },
+
+ respondToReadyState: function(readyState) {
+ var event = Ajax.Request.Events[readyState];
+ var transport = this.transport, json = this.evalJSON();
+
+ if (event == 'Complete') {
+ try {
+ (this.options['on' + this.transport.status]
+ || this.options['on' + (this.responseIsSuccess() ? 'Success' : 'Failure')]
+ || Prototype.emptyFunction)(transport, json);
+ } catch (e) {
+ this.dispatchException(e);
+ }
+
+ if ((this.header('Content-type') || '').match(/^text\/javascript/i))
+ this.evalResponse();
+ }
+
+ try {
+ (this.options['on' + event] || Prototype.emptyFunction)(transport, json);
+ Ajax.Responders.dispatch('on' + event, this, transport, json);
+ } catch (e) {
+ this.dispatchException(e);
+ }
+
+ /* Avoid memory leak in MSIE: clean up the oncomplete event handler */
+ if (event == 'Complete')
+ this.transport.onreadystatechange = Prototype.emptyFunction;
+ },
+
+ dispatchException: function(exception) {
+ (this.options.onException || Prototype.emptyFunction)(this, exception);
+ Ajax.Responders.dispatch('onException', this, exception);
+ }
+});
+
+Ajax.Updater = Class.create();
+
+Object.extend(Object.extend(Ajax.Updater.prototype, Ajax.Request.prototype), {
+ initialize: function(container, url, options) {
+ this.containers = {
+ success: container.success ? $(container.success) : $(container),
+ failure: container.failure ? $(container.failure) :
+ (container.success ? null : $(container))
+ }
+
+ this.transport = Ajax.getTransport();
+ this.setOptions(options);
+
+ var onComplete = this.options.onComplete || Prototype.emptyFunction;
+ this.options.onComplete = (function(transport, object) {
+ this.updateContent();
+ onComplete(transport, object);
+ }).bind(this);
+
+ this.request(url);
+ },
+
+ updateContent: function() {
+ var receiver = this.responseIsSuccess() ?
+ this.containers.success : this.containers.failure;
+ var response = this.transport.responseText;
+
+ if (!this.options.evalScripts)
+ response = response.stripScripts();
+
+ if (receiver) {
+ if (this.options.insertion) {
+ new this.options.insertion(receiver, response);
+ } else {
+ Element.update(receiver, response);
+ }
+ }
+
+ if (this.responseIsSuccess()) {
+ if (this.onComplete)
+ setTimeout(this.onComplete.bind(this), 10);
+ }
+ }
+});
+
+Ajax.PeriodicalUpdater = Class.create();
+Ajax.PeriodicalUpdater.prototype = Object.extend(new Ajax.Base(), {
+ initialize: function(container, url, options) {
+ this.setOptions(options);
+ this.onComplete = this.options.onComplete;
+
+ this.frequency = (this.options.frequency || 2);
+ this.decay = (this.options.decay || 1);
+
+ this.updater = {};
+ this.container = container;
+ this.url = url;
+
+ this.start();
+ },
+
+ start: function() {
+ this.options.onComplete = this.updateComplete.bind(this);
+ this.onTimerEvent();
+ },
+
+ stop: function() {
+ this.updater.onComplete = undefined;
+ clearTimeout(this.timer);
+ (this.onComplete || Prototype.emptyFunction).apply(this, arguments);
+ },
+
+ updateComplete: function(request) {
+ if (this.options.decay) {
+ this.decay = (request.responseText == this.lastText ?
+ this.decay * this.options.decay : 1);
+
+ this.lastText = request.responseText;
+ }
+ this.timer = setTimeout(this.onTimerEvent.bind(this),
+ this.decay * this.frequency * 1000);
+ },
+
+ onTimerEvent: function() {
+ this.updater = new Ajax.Updater(this.container, this.url, this.options);
+ }
+});
+document.getElementsByClassName = function(className, parentElement) {
+ var children = ($(parentElement) || document.body).getElementsByTagName('*');
+ return $A(children).inject([], function(elements, child) {
+ if (child.className.match(new RegExp("(^|\\s)" + className + "(\\s|$)")))
+ elements.push(child);
+ return elements;
+ });
+}
+
+/*--------------------------------------------------------------------------*/
+
+if (!window.Element) {
+ var Element = new Object();
+}
+
+Object.extend(Element, {
+ visible: function(element) {
+ return $(element).style.display != 'none';
+ },
+
+ toggle: function() {
+ for (var i = 0; i < arguments.length; i++) {
+ var element = $(arguments[i]);
+ Element[Element.visible(element) ? 'hide' : 'show'](element);
+ }
+ },
+
+ hide: function() {
+ for (var i = 0; i < arguments.length; i++) {
+ var element = $(arguments[i]);
+ element.style.display = 'none';
+ }
+ },
+
+ show: function() {
+ for (var i = 0; i < arguments.length; i++) {
+ var element = $(arguments[i]);
+ element.style.display = '';
+ }
+ },
+
+ remove: function(element) {
+ element = $(element);
+ element.parentNode.removeChild(element);
+ },
+
+ update: function(element, html) {
+ $(element).innerHTML = html.stripScripts();
+ setTimeout(function() {html.evalScripts()}, 10);
+ },
+
+ getHeight: function(element) {
+ element = $(element);
+ return element.offsetHeight;
+ },
+
+ classNames: function(element) {
+ return new Element.ClassNames(element);
+ },
+
+ hasClassName: function(element, className) {
+ if (!(element = $(element))) return;
+ return Element.classNames(element).include(className);
+ },
+
+ addClassName: function(element, className) {
+ if (!(element = $(element))) return;
+ return Element.classNames(element).add(className);
+ },
+
+ removeClassName: function(element, className) {
+ if (!(element = $(element))) return;
+ return Element.classNames(element).remove(className);
+ },
+
+ // removes whitespace-only text node children
+ cleanWhitespace: function(element) {
+ element = $(element);
+ for (var i = 0; i < element.childNodes.length; i++) {
+ var node = element.childNodes[i];
+ if (node.nodeType == 3 && !/\S/.test(node.nodeValue))
+ Element.remove(node);
+ }
+ },
+
+ empty: function(element) {
+ return $(element).innerHTML.match(/^\s*$/);
+ },
+
+ scrollTo: function(element) {
+ element = $(element);
+ var x = element.x ? element.x : element.offsetLeft,
+ y = element.y ? element.y : element.offsetTop;
+ window.scrollTo(x, y);
+ },
+
+ getStyle: function(element, style) {
+ element = $(element);
+ var value = element.style[style.camelize()];
+ if (!value) {
+ if (document.defaultView && document.defaultView.getComputedStyle) {
+ var css = document.defaultView.getComputedStyle(element, null);
+ value = css ? css.getPropertyValue(style) : null;
+ } else if (element.currentStyle) {
+ value = element.currentStyle[style.camelize()];
+ }
+ }
+
+ if (window.opera && ['left', 'top', 'right', 'bottom'].include(style))
+ if (Element.getStyle(element, 'position') == 'static') value = 'auto';
+
+ return value == 'auto' ? null : value;
+ },
+
+ setStyle: function(element, style) {
+ element = $(element);
+ for (name in style)
+ element.style[name.camelize()] = style[name];
+ },
+
+ getDimensions: function(element) {
+ element = $(element);
+ if (Element.getStyle(element, 'display') != 'none')
+ return {width: element.offsetWidth, height: element.offsetHeight};
+
+ // All *Width and *Height properties give 0 on elements with display none,
+ // so enable the element temporarily
+ var els = element.style;
+ var originalVisibility = els.visibility;
+ var originalPosition = els.position;
+ els.visibility = 'hidden';
+ els.position = 'absolute';
+ els.display = '';
+ var originalWidth = element.clientWidth;
+ var originalHeight = element.clientHeight;
+ els.display = 'none';
+ els.position = originalPosition;
+ els.visibility = originalVisibility;
+ return {width: originalWidth, height: originalHeight};
+ },
+
+ makePositioned: function(element) {
+ element = $(element);
+ var pos = Element.getStyle(element, 'position');
+ if (pos == 'static' || !pos) {
+ element._madePositioned = true;
+ element.style.position = 'relative';
+ // Opera returns the offset relative to the positioning context, when an
+ // element is position relative but top and left have not been defined
+ if (window.opera) {
+ element.style.top = 0;
+ element.style.left = 0;
+ }
+ }
+ },
+
+ undoPositioned: function(element) {
+ element = $(element);
+ if (element._madePositioned) {
+ element._madePositioned = undefined;
+ element.style.position =
+ element.style.top =
+ element.style.left =
+ element.style.bottom =
+ element.style.right = '';
+ }
+ },
+
+ makeClipping: function(element) {
+ element = $(element);
+ if (element._overflow) return;
+ element._overflow = element.style.overflow;
+ if ((Element.getStyle(element, 'overflow') || 'visible') != 'hidden')
+ element.style.overflow = 'hidden';
+ },
+
+ undoClipping: function(element) {
+ element = $(element);
+ if (element._overflow) return;
+ element.style.overflow = element._overflow;
+ element._overflow = undefined;
+ }
+});
+
+var Toggle = new Object();
+Toggle.display = Element.toggle;
+
+/*--------------------------------------------------------------------------*/
+
+Abstract.Insertion = function(adjacency) {
+ this.adjacency = adjacency;
+}
+
+Abstract.Insertion.prototype = {
+ initialize: function(element, content) {
+ this.element = $(element);
+ this.content = content.stripScripts();
+
+ if (this.adjacency && this.element.insertAdjacentHTML) {
+ try {
+ this.element.insertAdjacentHTML(this.adjacency, this.content);
+ } catch (e) {
+ if (this.element.tagName.toLowerCase() == 'tbody') {
+ this.insertContent(this.contentFromAnonymousTable());
+ } else {
+ throw e;
+ }
+ }
+ } else {
+ this.range = this.element.ownerDocument.createRange();
+ if (this.initializeRange) this.initializeRange();
+ this.insertContent([this.range.createContextualFragment(this.content)]);
+ }
+
+ setTimeout(function() {content.evalScripts()}, 10);
+ },
+
+ contentFromAnonymousTable: function() {
+ var div = document.createElement('div');
+ div.innerHTML = '<table><tbody>' + this.content + '</tbody></table>';
+ return $A(div.childNodes[0].childNodes[0].childNodes);
+ }
+}
+
+var Insertion = new Object();
+
+Insertion.Before = Class.create();
+Insertion.Before.prototype = Object.extend(new Abstract.Insertion('beforeBegin'), {
+ initializeRange: function() {
+ this.range.setStartBefore(this.element);
+ },
+
+ insertContent: function(fragments) {
+ fragments.each((function(fragment) {
+ this.element.parentNode.insertBefore(fragment, this.element);
+ }).bind(this));
+ }
+});
+
+Insertion.Top = Class.create();
+Insertion.Top.prototype = Object.extend(new Abstract.Insertion('afterBegin'), {
+ initializeRange: function() {
+ this.range.selectNodeContents(this.element);
+ this.range.collapse(true);
+ },
+
+ insertContent: function(fragments) {
+ fragments.reverse(false).each((function(fragment) {
+ this.element.insertBefore(fragment, this.element.firstChild);
+ }).bind(this));
+ }
+});
+
+Insertion.Bottom = Class.create();
+Insertion.Bottom.prototype = Object.extend(new Abstract.Insertion('beforeEnd'), {
+ initializeRange: function() {
+ this.range.selectNodeContents(this.element);
+ this.range.collapse(this.element);
+ },
+
+ insertContent: function(fragments) {
+ fragments.each((function(fragment) {
+ this.element.appendChild(fragment);
+ }).bind(this));
+ }
+});
+
+Insertion.After = Class.create();
+Insertion.After.prototype = Object.extend(new Abstract.Insertion('afterEnd'), {
+ initializeRange: function() {
+ this.range.setStartAfter(this.element);
+ },
+
+ insertContent: function(fragments) {
+ fragments.each((function(fragment) {
+ this.element.parentNode.insertBefore(fragment,
+ this.element.nextSibling);
+ }).bind(this));
+ }
+});
+
+/*--------------------------------------------------------------------------*/
+
+Element.ClassNames = Class.create();
+Element.ClassNames.prototype = {
+ initialize: function(element) {
+ this.element = $(element);
+ },
+
+ _each: function(iterator) {
+ this.element.className.split(/\s+/).select(function(name) {
+ return name.length > 0;
+ })._each(iterator);
+ },
+
+ set: function(className) {
+ this.element.className = className;
+ },
+
+ add: function(classNameToAdd) {
+ if (this.include(classNameToAdd)) return;
+ this.set(this.toArray().concat(classNameToAdd).join(' '));
+ },
+
+ remove: function(classNameToRemove) {
+ if (!this.include(classNameToRemove)) return;
+ this.set(this.select(function(className) {
+ return className != classNameToRemove;
+ }).join(' '));
+ },
+
+ toString: function() {
+ return this.toArray().join(' ');
+ }
+}
+
+Object.extend(Element.ClassNames.prototype, Enumerable);
+var Field = {
+ clear: function() {
+ for (var i = 0; i < arguments.length; i++)
+ $(arguments[i]).value = '';
+ },
+
+ focus: function(element) {
+ $(element).focus();
+ },
+
+ present: function() {
+ for (var i = 0; i < arguments.length; i++)
+ if ($(arguments[i]).value == '') return false;
+ return true;
+ },
+
+ select: function(element) {
+ $(element).select();
+ },
+
+ activate: function(element) {
+ element = $(element);
+ element.focus();
+ if (element.select)
+ element.select();
+ }
+}
+
+/*--------------------------------------------------------------------------*/
+
+var Form = {
+ serialize: function(form) {
+ var elements = Form.getElements($(form));
+ var queryComponents = new Array();
+
+ for (var i = 0; i < elements.length; i++) {
+ var queryComponent = Form.Element.serialize(elements[i]);
+ if (queryComponent)
+ queryComponents.push(queryComponent);
+ }
+
+ return queryComponents.join('&');
+ },
+
+ getElements: function(form) {
+ form = $(form);
+ var elements = new Array();
+
+ for (tagName in Form.Element.Serializers) {
+ var tagElements = form.getElementsByTagName(tagName);
+ for (var j = 0; j < tagElements.length; j++)
+ elements.push(tagElements[j]);
+ }
+ return elements;
+ },
+
+ getInputs: function(form, typeName, name) {
+ form = $(form);
+ var inputs = form.getElementsByTagName('input');
+
+ if (!typeName && !name)
+ return inputs;
+
+ var matchingInputs = new Array();
+ for (var i = 0; i < inputs.length; i++) {
+ var input = inputs[i];
+ if ((typeName && input.type != typeName) ||
+ (name && input.name != name))
+ continue;
+ matchingInputs.push(input);
+ }
+
+ return matchingInputs;
+ },
+
+ disable: function(form) {
+ var elements = Form.getElements(form);
+ for (var i = 0; i < elements.length; i++) {
+ var element = elements[i];
+ element.blur();
+ element.disabled = 'true';
+ }
+ },
+
+ enable: function(form) {
+ var elements = Form.getElements(form);
+ for (var i = 0; i < elements.length; i++) {
+ var element = elements[i];
+ element.disabled = '';
+ }
+ },
+
+ findFirstElement: function(form) {
+ return Form.getElements(form).find(function(element) {
+ return element.type != 'hidden' && !element.disabled &&
+ ['input', 'select', 'textarea'].include(element.tagName.toLowerCase());
+ });
+ },
+
+ focusFirstElement: function(form) {
+ Field.activate(Form.findFirstElement(form));
+ },
+
+ reset: function(form) {
+ $(form).reset();
+ }
+}
+
+Form.Element = {
+ serialize: function(element) {
+ element = $(element);
+ var method = element.tagName.toLowerCase();
+ var parameter = Form.Element.Serializers[method](element);
+
+ if (parameter) {
+ var key = encodeURIComponent(parameter[0]);
+ if (key.length == 0) return;
+
+ if (parameter[1].constructor != Array)
+ parameter[1] = [parameter[1]];
+
+ return parameter[1].map(function(value) {
+ return key + '=' + encodeURIComponent(value);
+ }).join('&');
+ }
+ },
+
+ getValue: function(element) {
+ element = $(element);
+ var method = element.tagName.toLowerCase();
+ var parameter = Form.Element.Serializers[method](element);
+
+ if (parameter)
+ return parameter[1];
+ }
+}
+
+Form.Element.Serializers = {
+ input: function(element) {
+ switch (element.type.toLowerCase()) {
+ case 'submit':
+ case 'hidden':
+ case 'password':
+ case 'text':
+ return Form.Element.Serializers.textarea(element);
+ case 'checkbox':
+ case 'radio':
+ return Form.Element.Serializers.inputSelector(element);
+ }
+ return false;
+ },
+
+ inputSelector: function(element) {
+ if (element.checked)
+ return [element.name, element.value];
+ },
+
+ textarea: function(element) {
+ return [element.name, element.value];
+ },
+
+ select: function(element) {
+ return Form.Element.Serializers[element.type == 'select-one' ?
+ 'selectOne' : 'selectMany'](element);
+ },
+
+ selectOne: function(element) {
+ var value = '', opt, index = element.selectedIndex;
+ if (index >= 0) {
+ opt = element.options[index];
+ value = opt.value;
+ if (!value && !('value' in opt))
+ value = opt.text;
+ }
+ return [element.name, value];
+ },
+
+ selectMany: function(element) {
+ var value = new Array();
+ for (var i = 0; i < element.length; i++) {
+ var opt = element.options[i];
+ if (opt.selected) {
+ var optValue = opt.value;
+ if (!optValue && !('value' in opt))
+ optValue = opt.text;
+ value.push(optValue);
+ }
+ }
+ return [element.name, value];
+ }
+}
+
+/*--------------------------------------------------------------------------*/
+
+var $F = Form.Element.getValue;
+
+/*--------------------------------------------------------------------------*/
+
+Abstract.TimedObserver = function() {}
+Abstract.TimedObserver.prototype = {
+ initialize: function(element, frequency, callback) {
+ this.frequency = frequency;
+ this.element = $(element);
+ this.callback = callback;
+
+ this.lastValue = this.getValue();
+ this.registerCallback();
+ },
+
+ registerCallback: function() {
+ setInterval(this.onTimerEvent.bind(this), this.frequency * 1000);
+ },
+
+ onTimerEvent: function() {
+ var value = this.getValue();
+ if (this.lastValue != value) {
+ this.callback(this.element, value);
+ this.lastValue = value;
+ }
+ }
+}
+
+Form.Element.Observer = Class.create();
+Form.Element.Observer.prototype = Object.extend(new Abstract.TimedObserver(), {
+ getValue: function() {
+ return Form.Element.getValue(this.element);
+ }
+});
+
+Form.Observer = Class.create();
+Form.Observer.prototype = Object.extend(new Abstract.TimedObserver(), {
+ getValue: function() {
+ return Form.serialize(this.element);
+ }
+});
+
+/*--------------------------------------------------------------------------*/
+
+Abstract.EventObserver = function() {}
+Abstract.EventObserver.prototype = {
+ initialize: function(element, callback) {
+ this.element = $(element);
+ this.callback = callback;
+
+ this.lastValue = this.getValue();
+ if (this.element.tagName.toLowerCase() == 'form')
+ this.registerFormCallbacks();
+ else
+ this.registerCallback(this.element);
+ },
+
+ onElementEvent: function() {
+ var value = this.getValue();
+ if (this.lastValue != value) {
+ this.callback(this.element, value);
+ this.lastValue = value;
+ }
+ },
+
+ registerFormCallbacks: function() {
+ var elements = Form.getElements(this.element);
+ for (var i = 0; i < elements.length; i++)
+ this.registerCallback(elements[i]);
+ },
+
+ registerCallback: function(element) {
+ if (element.type) {
+ switch (element.type.toLowerCase()) {
+ case 'checkbox':
+ case 'radio':
+ Event.observe(element, 'click', this.onElementEvent.bind(this));
+ break;
+ case 'password':
+ case 'text':
+ case 'textarea':
+ case 'select-one':
+ case 'select-multiple':
+ Event.observe(element, 'change', this.onElementEvent.bind(this));
+ break;
+ }
+ }
+ }
+}
+
+Form.Element.EventObserver = Class.create();
+Form.Element.EventObserver.prototype = Object.extend(new Abstract.EventObserver(), {
+ getValue: function() {
+ return Form.Element.getValue(this.element);
+ }
+});
+
+Form.EventObserver = Class.create();
+Form.EventObserver.prototype = Object.extend(new Abstract.EventObserver(), {
+ getValue: function() {
+ return Form.serialize(this.element);
+ }
+});
+if (!window.Event) {
+ var Event = new Object();
+}
+
+Object.extend(Event, {
+ KEY_BACKSPACE: 8,
+ KEY_TAB: 9,
+ KEY_RETURN: 13,
+ KEY_ESC: 27,
+ KEY_LEFT: 37,
+ KEY_UP: 38,
+ KEY_RIGHT: 39,
+ KEY_DOWN: 40,
+ KEY_DELETE: 46,
+
+ element: function(event) {
+ return event.target || event.srcElement;
+ },
+
+ isLeftClick: function(event) {
+ return (((event.which) && (event.which == 1)) ||
+ ((event.button) && (event.button == 1)));
+ },
+
+ pointerX: function(event) {
+ return event.pageX || (event.clientX +
+ (document.documentElement.scrollLeft || document.body.scrollLeft));
+ },
+
+ pointerY: function(event) {
+ return event.pageY || (event.clientY +
+ (document.documentElement.scrollTop || document.body.scrollTop));
+ },
+
+ stop: function(event) {
+ if (event.preventDefault) {
+ event.preventDefault();
+ event.stopPropagation();
+ } else {
+ event.returnValue = false;
+ event.cancelBubble = true;
+ }
+ },
+
+ // find the first node with the given tagName, starting from the
+ // node the event was triggered on; traverses the DOM upwards
+ findElement: function(event, tagName) {
+ var element = Event.element(event);
+ while (element.parentNode && (!element.tagName ||
+ (element.tagName.toUpperCase() != tagName.toUpperCase())))
+ element = element.parentNode;
+ return element;
+ },
+
+ observers: false,
+
+ _observeAndCache: function(element, name, observer, useCapture) {
+ if (!this.observers) this.observers = [];
+ if (element.addEventListener) {
+ this.observers.push([element, name, observer, useCapture]);
+ element.addEventListener(name, observer, useCapture);
+ } else if (element.attachEvent) {
+ this.observers.push([element, name, observer, useCapture]);
+ element.attachEvent('on' + name, observer);
+ }
+ },
+
+ unloadCache: function() {
+ if (!Event.observers) return;
+ for (var i = 0; i < Event.observers.length; i++) {
+ Event.stopObserving.apply(this, Event.observers[i]);
+ Event.observers[i][0] = null;
+ }
+ Event.observers = false;
+ },
+
+ observe: function(element, name, observer, useCapture) {
+ var element = $(element);
+ useCapture = useCapture || false;
+
+ if (name == 'keypress' &&
+ (navigator.appVersion.match(/Konqueror|Safari|KHTML/)
+ || element.attachEvent))
+ name = 'keydown';
+
+ this._observeAndCache(element, name, observer, useCapture);
+ },
+
+ stopObserving: function(element, name, observer, useCapture) {
+ var element = $(element);
+ useCapture = useCapture || false;
+
+ if (name == 'keypress' &&
+ (navigator.appVersion.match(/Konqueror|Safari|KHTML/)
+ || element.detachEvent))
+ name = 'keydown';
+
+ if (element.removeEventListener) {
+ element.removeEventListener(name, observer, useCapture);
+ } else if (element.detachEvent) {
+ element.detachEvent('on' + name, observer);
+ }
+ }
+});
+
+/* prevent memory leaks in IE */
+Event.observe(window, 'unload', Event.unloadCache, false);
+var Position = {
+ // set to true if needed, warning: firefox performance problems
+ // NOT neeeded for page scrolling, only if draggable contained in
+ // scrollable elements
+ includeScrollOffsets: false,
+
+ // must be called before calling withinIncludingScrolloffset, every time the
+ // page is scrolled
+ prepare: function() {
+ this.deltaX = window.pageXOffset
+ || document.documentElement.scrollLeft
+ || document.body.scrollLeft
+ || 0;
+ this.deltaY = window.pageYOffset
+ || document.documentElement.scrollTop
+ || document.body.scrollTop
+ || 0;
+ },
+
+ realOffset: function(element) {
+ var valueT = 0, valueL = 0;
+ do {
+ valueT += element.scrollTop || 0;
+ valueL += element.scrollLeft || 0;
+ element = element.parentNode;
+ } while (element);
+ return [valueL, valueT];
+ },
+
+ cumulativeOffset: function(element) {
+ var valueT = 0, valueL = 0;
+ do {
+ valueT += element.offsetTop || 0;
+ valueL += element.offsetLeft || 0;
+ element = element.offsetParent;
+ } while (element);
+ return [valueL, valueT];
+ },
+
+ positionedOffset: function(element) {
+ var valueT = 0, valueL = 0;
+ do {
+ valueT += element.offsetTop || 0;
+ valueL += element.offsetLeft || 0;
+ element = element.offsetParent;
+ if (element) {
+ p = Element.getStyle(element, 'position');
+ if (p == 'relative' || p == 'absolute') break;
+ }
+ } while (element);
+ return [valueL, valueT];
+ },
+
+ offsetParent: function(element) {
+ if (element.offsetParent) return element.offsetParent;
+ if (element == document.body) return element;
+
+ while ((element = element.parentNode) && element != document.body)
+ if (Element.getStyle(element, 'position') != 'static')
+ return element;
+
+ return document.body;
+ },
+
+ // caches x/y coordinate pair to use with overlap
+ within: function(element, x, y) {
+ if (this.includeScrollOffsets)
+ return this.withinIncludingScrolloffsets(element, x, y);
+ this.xcomp = x;
+ this.ycomp = y;
+ this.offset = this.cumulativeOffset(element);
+
+ return (y >= this.offset[1] &&
+ y < this.offset[1] + element.offsetHeight &&
+ x >= this.offset[0] &&
+ x < this.offset[0] + element.offsetWidth);
+ },
+
+ withinIncludingScrolloffsets: function(element, x, y) {
+ var offsetcache = this.realOffset(element);
+
+ this.xcomp = x + offsetcache[0] - this.deltaX;
+ this.ycomp = y + offsetcache[1] - this.deltaY;
+ this.offset = this.cumulativeOffset(element);
+
+ return (this.ycomp >= this.offset[1] &&
+ this.ycomp < this.offset[1] + element.offsetHeight &&
+ this.xcomp >= this.offset[0] &&
+ this.xcomp < this.offset[0] + element.offsetWidth);
+ },
+
+ // within must be called directly before
+ overlap: function(mode, element) {
+ if (!mode) return 0;
+ if (mode == 'vertical')
+ return ((this.offset[1] + element.offsetHeight) - this.ycomp) /
+ element.offsetHeight;
+ if (mode == 'horizontal')
+ return ((this.offset[0] + element.offsetWidth) - this.xcomp) /
+ element.offsetWidth;
+ },
+
+ clone: function(source, target) {
+ source = $(source);
+ target = $(target);
+ target.style.position = 'absolute';
+ var offsets = this.cumulativeOffset(source);
+ target.style.top = offsets[1] + 'px';
+ target.style.left = offsets[0] + 'px';
+ target.style.width = source.offsetWidth + 'px';
+ target.style.height = source.offsetHeight + 'px';
+ },
+
+ page: function(forElement) {
+ var valueT = 0, valueL = 0;
+
+ var element = forElement;
+ do {
+ valueT += element.offsetTop || 0;
+ valueL += element.offsetLeft || 0;
+
+ // Safari fix
+ if (element.offsetParent==document.body)
+ if (Element.getStyle(element,'position')=='absolute') break;
+
+ } while (element = element.offsetParent);
+
+ element = forElement;
+ do {
+ valueT -= element.scrollTop || 0;
+ valueL -= element.scrollLeft || 0;
+ } while (element = element.parentNode);
+
+ return [valueL, valueT];
+ },
+
+ clone: function(source, target) {
+ var options = Object.extend({
+ setLeft: true,
+ setTop: true,
+ setWidth: true,
+ setHeight: true,
+ offsetTop: 0,
+ offsetLeft: 0
+ }, arguments[2] || {})
+
+ // find page position of source
+ source = $(source);
+ var p = Position.page(source);
+
+ // find coordinate system to use
+ target = $(target);
+ var delta = [0, 0];
+ var parent = null;
+ // delta [0,0] will do fine with position: fixed elements,
+ // position:absolute needs offsetParent deltas
+ if (Element.getStyle(target,'position') == 'absolute') {
+ parent = Position.offsetParent(target);
+ delta = Position.page(parent);
+ }
+
+ // correct by body offsets (fixes Safari)
+ if (parent == document.body) {
+ delta[0] -= document.body.offsetLeft;
+ delta[1] -= document.body.offsetTop;
+ }
+
+ // set position
+ if(options.setLeft) target.style.left = (p[0] - delta[0] + options.offsetLeft) + 'px';
+ if(options.setTop) target.style.top = (p[1] - delta[1] + options.offsetTop) + 'px';
+ if(options.setWidth) target.style.width = source.offsetWidth + 'px';
+ if(options.setHeight) target.style.height = source.offsetHeight + 'px';
+ },
+
+ absolutize: function(element) {
+ element = $(element);
+ if (element.style.position == 'absolute') return;
+ Position.prepare();
+
+ var offsets = Position.positionedOffset(element);
+ var top = offsets[1];
+ var left = offsets[0];
+ var width = element.clientWidth;
+ var height = element.clientHeight;
+
+ element._originalLeft = left - parseFloat(element.style.left || 0);
+ element._originalTop = top - parseFloat(element.style.top || 0);
+ element._originalWidth = element.style.width;
+ element._originalHeight = element.style.height;
+
+ element.style.position = 'absolute';
+ element.style.top = top + 'px';;
+ element.style.left = left + 'px';;
+ element.style.width = width + 'px';;
+ element.style.height = height + 'px';;
+ },
+
+ relativize: function(element) {
+ element = $(element);
+ if (element.style.position == 'relative') return;
+ Position.prepare();
+
+ element.style.position = 'relative';
+ var top = parseFloat(element.style.top || 0) - (element._originalTop || 0);
+ var left = parseFloat(element.style.left || 0) - (element._originalLeft || 0);
+
+ element.style.top = top + 'px';
+ element.style.left = left + 'px';
+ element.style.height = element._originalHeight;
+ element.style.width = element._originalWidth;
+ }
+}
+
+// Safari returns margins on body which is incorrect if the child is absolutely
+// positioned. For performance reasons, redefine Position.cumulativeOffset for
+// KHTML/WebKit only.
+if (/Konqueror|Safari|KHTML/.test(navigator.userAgent)) {
+ Position.cumulativeOffset = function(element) {
+ var valueT = 0, valueL = 0;
+ do {
+ valueT += element.offsetTop || 0;
+ valueL += element.offsetLeft || 0;
+ if (element.offsetParent == document.body)
+ if (Element.getStyle(element, 'position') == 'absolute') break;
+
+ element = element.offsetParent;
+ } while (element);
+
+ return [valueL, valueT];
+ }
+}
\ No newline at end of file
projects / tt-rss.git / commitdiff