From 1f560ccd8a9e21871dbedd548fc97f231131c771 Mon Sep 17 00:00:00 2001 From: xue <> Date: Wed, 30 Aug 2006 12:33:43 +0000 Subject: merge from 3.0 branch till 1363. --- framework/Web/Javascripts/js/debug/ajax.js | 3303 ++++++++++++++++++++++++++++ 1 file changed, 3303 insertions(+) create mode 100644 framework/Web/Javascripts/js/debug/ajax.js (limited to 'framework/Web/Javascripts/js/debug/ajax.js') diff --git a/framework/Web/Javascripts/js/debug/ajax.js b/framework/Web/Javascripts/js/debug/ajax.js new file mode 100644 index 00000000..9a61cabb --- /dev/null +++ b/framework/Web/Javascripts/js/debug/ajax.js @@ -0,0 +1,3303 @@ +var Ajax = { + getTransport: function() { + return Try.these( + function() {return new XMLHttpRequest()}, + function() {return new ActiveXObject('Msxml2.XMLHTTP')}, + function() {return new ActiveXObject('Microsoft.XMLHTTP')} + ) || 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, + contentType: 'application/x-www-form-urlencoded', + 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, + 'Accept', 'text/javascript, text/html, application/xml, text/xml, */*']; + + if (this.options.method == 'post') { + requestHeaders.push('Content-type', this.options.contentType); + + /* 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); + } +}); + + +/** + * Prado AJAX service. The default service provider is JPSpan. + */ +Prado.AJAX = { Service : 'Prototype' }; + +/** + * Parse and execute javascript embedded in html. + */ +Prado.AJAX.EvalScript = function(output) +{ + + var match = new RegExp(Ajax.Updater.ScriptFragment, 'img'); + var scripts = output.match(match); + if (scripts) + { + match = new RegExp(Ajax.Updater.ScriptFragment, 'im'); + setTimeout((function() + { + for (var i = 0; i < scripts.length; i++) + eval(scripts[i].match(match)[1]); + }).bind(this), 50); + } +} + + +/** + * AJAX service request using Prototype's AJAX request class. + */ +Prado.AJAX.Request = Class.create(); +Prado.AJAX.Request.prototype = Object.extend(Ajax.Request.prototype, +{ + /** + * Evaluate the respond JSON data, override parent implementing. + * If default eval fails, try parsing the JSON data (slower). + */ + evalJSON: function() + { + try + { + var json = this.transport.getResponseHeader('X-JSON'), object; + object = eval(json); + return object; + } + catch (e) + { + if(isString(json)) + { + return Prado.AJAX.JSON.parse(json); + } + } + }, + + respondToReadyState: function(readyState) { + var event = Ajax.Request.Events[readyState]; + var transport = this.transport, json = this.evalJSON(); + + + if(event == 'Complete' && transport.status) + Ajax.Responders.dispatch('on' + transport.status, this, transport, json); + + (this.options['on' + event] || Prototype.emptyFunction)(transport, json); + Ajax.Responders.dispatch('on' + event, this, transport, json); + + if (event == 'Complete') + (this.options['on' + this.transport.status] + || this.options['on' + (this.responseIsSuccess() ? 'Success' : 'Failure')] + || Prototype.emptyFunction)(transport, json); + + + /* Avoid memory leak in MSIE: clean up the oncomplete event handler */ + if (event == 'Complete') + this.transport.onreadystatechange = Prototype.emptyFunction; + } + +}); + +Prado.AJAX.Error = function(e, code) +{ + e.name = 'Prado.AJAX.Error'; + e.code = code; + return e; +} + +/** + * Post data builder, serialize the data using JSON. + */ +Prado.AJAX.RequestBuilder = Class.create(); +Prado.AJAX.RequestBuilder.prototype = +{ + initialize : function() + { + this.body = ''; + this.data = []; + }, + encode : function(data) + { + return Prado.AJAX.JSON.stringify(data); + }, + build : function(data) + { + var sep = ''; + for ( var argName in data) + { + if(isFunction(data[argName])) continue; + try + { + this.body += sep + argName + '='; + this.body += encodeURIComponent(this.encode(data[argName])); + } catch (e) { + throw Prado.AJAX.Error(e, 1006); + } + sep = '&'; + } + }, + + getAll : function() + { + this.build(this.data); + return this.body; + } +} + + +Prado.AJAX.RemoteObject = function(){}; + +/** + * AJAX service request for Prado RemoteObjects + */ +Prado.AJAX.RemoteObject.Request = Class.create(); +Prado.AJAX.RemoteObject.Request.prototype = Object.extend(Prado.AJAX.Request.prototype, +{ + /** + * Initialize the RemoteObject Request, overrides parent + * implementation by delaying the request to invokeRemoteObject. + */ + initialize : function(options) + { + this.transport = Ajax.getTransport(); + this.setOptions(options); + this.post = new Prado.AJAX.RequestBuilder(); + }, + + /** + * Call the remote object, + * @param string the remote server url + * @param array additional arguments + */ + invokeRemoteObject : function(url, args) + { + this.initParameters(args); + this.options.postBody = this.post.getAll(); + this.request(url); + }, + + /** + * Set the additional arguments as post data with key '__parameters' + */ + initParameters : function(args) + { + this.post.data['__parameters'] = []; + for(var i = 0; i + * var TestObject1 = Class.create(); + * TestObject1.prototype = Object.extend(new Prado.AJAX.RemoteObject(), + * { + * initialize : function(handlers, options) + * { + * this.__serverurl = 'http://127.0.0.1/.....'; + * this.baseInitialize(handlers, options); + * } + * + * method1 : function() + * { + * return this.__call(this.__serverurl, 'method1', arguments); + * } + * }); + * + * And client usage, + * + * var test1 = new TestObject1(); //create new remote object + * test1.method1(); //call the method, no onComplete hook + * + * var onComplete = { method1 : function(result){ alert(result) } }; + * //create new remote object with onComplete callback + * var test2 = new TestObject1(onComplete); + * test2.method1(); //call it, on success, onComplete's method1 is called. + * + */ +Prado.AJAX.RemoteObject.prototype = +{ + baseInitialize : function(handlers, options) + { + this.__handlers = handlers || {}; + this.__service = new Prado.AJAX.RemoteObject.Request(options); + }, + + __call : function(url, method, args) + { + this.__service.options.onSuccess = this.__onSuccess.bind(this); + this.__callback = method; + return this.__service.invokeRemoteObject(url+"/"+method, args); + }, + + __onSuccess : function(transport, json) + { + if(this.__handlers[this.__callback]) + this.__handlers[this.__callback](json, transport.responseText); + } +}; + +/** + * Respond to Prado AJAX request exceptions. + */ +Prado.AJAX.Exception = +{ + /** + * Server returns 505 exception. Just log it. + */ + "on505" : function(request, transport, e) + { + var msg = 'HTTP '+transport.status+" with response"; + Logger.error(msg, transport.responseText); + Logger.exception(e); + }, + + onComplete : function(request, transport, e) + { + if(transport.status != 505) + { + var msg = 'HTTP '+transport.status+" with response : \n"; + msg += transport.responseText + "\n"; + msg += "Data : \n"+inspect(e); + Logger.warn(msg); + } + }, + + format : function(e) + { + var msg = e.type + " with message \""+e.message+"\""; + msg += " in "+e.file+"("+e.line+")\n"; + msg += "Stack trace:\n"; + var trace = e.trace; + for(var i = 0; i"+trace[i]["function"]+"()"+"\n"; + } + return msg; + }, + + logException : function(e) + { + var msg = Prado.AJAX.Exception.format(e); + Logger.error("Server Error "+e.code, msg); + } +} + +//Add HTTP exception respones when logger is enabled. +Event.OnLoad(function() +{ + if(typeof Logger != "undefined") + { + Logger.exception = Prado.AJAX.Exception.logException; + Ajax.Responders.register(Prado.AJAX.Exception); + } +}); + +/** + * Prado Callback service that provides component intergration, + * viewstate (read only), and automatic form data serialization. + * Usage: new Prado.AJAX.Callback('MyPage.MyComponentID.raiseCallbackEvent', options) + * These classes should be called by the components developers. + * For inline callback service, use Prado.Callback(callbackID, params). + */ +Prado.AJAX.Callback = Class.create(); +Prado.AJAX.Callback.prototype = Object.extend(new Prado.AJAX.RemoteObject(), +{ + + /** + * Create and request a new Prado callback service. + * @param string|element the callback ID, must be of the form, ClassName.ComponentID.MethodName + * @param list options with list key onCallbackReturn, and more. + * + */ + initialize : function(ID, options) + { + if(!isString(ID) && typeof(ID.id) != "undefined") + ID = ID.id; + if(!isString(ID)) + throw new Error('A Control ID must be specified'); + this.baseInitialize(this, options); + this.options = options || []; + this.__service.post.data['__ID'] = ID; + this.requestCallback(); + }, + + /** + * Get form data for components that implements IPostBackHandler. + */ + collectPostData : function() + { + var IDs = Prado.AJAX.Callback.IDs; + this.__service.post.data['__data'] = {}; + for(var i = 0; i -1) + this.__service.post.data['__data'][id] = + this.collectArrayPostData(id); + else if(isObject($(id))) + this.__service.post.data['__data'][id] = $F(id); + } + }, + + collectArrayPostData : function(name) + { + var elements = document.getElementsByName(name); + var data = []; + $A(elements).each(function(el) + { + if($F(el)) data.push($F(el)); + }); + return data; + }, + + /** + * Prepares and calls the AJAX request. + * Collects the data from components that implements IPostBackHandler + * and the viewstate as part of the request payload. + */ + requestCallback : function() + { + this.collectPostData(); + if(Prado.AJAX.Validate(this.options)) + return this.__call(Prado.AJAX.Callback.Server, 'handleCallback', this.options.params); + }, + + /** + * On callback request return, call the onSuccess function. + */ + handleCallback : function(result, output) + { + if(typeof(result) != "undefined" && !isNull(result)) + { + this.options.onSuccess(result['data'], output); + if(result['actions']) + result.actions.each(Prado.AJAX.Callback.Action.__run); + } + } +}); + +/** + * Prase and evaluate Callback clien-side actions. + */ +Prado.AJAX.Callback.Action = +{ + __run : function(command) + { + for(var name in command) + { + //first parameter must be a valid element or begins with '@' + if(command[name][0] && ($(command[name][0]) || command[name][0].indexOf("[]") > -1)) + { + name.toFunction().apply(this,command[name]); + } + } + } +}; + + +/** + * Returns false if validation required and validates to false, + * returns true otherwise. + * @return boolean true if validation passes. + */ +Prado.AJAX.Validate = function(options) +{ + if(options.CausesValidation) + { + if(options.ValidatorGroup) + return Prado.Validation.ValidateValidatorGroup(options.ValidatorGroup); + else if(options.ValidationGroup) + return Prado.Validation.ValidateValidationGroup(options.ValidationGroup); + else + return Prado.Validation.ValidateNonGroup(options.ValidationForm); + } + else + return true; +}; + + +//Available callback service +Prado.AJAX.Callback.Server = ''; + +//List of IDs that implements IPostBackHandler +Prado.AJAX.Callback.IDs = []; + +/** + * Simple AJAX callback interface, suitable for inline javascript. + * e.g., Click me + * @param {String} callback ID + * @param {Array} parameters to pass to the callback service + * @param {Function} on callback success handler method + * @param {Object} additional callback options + */ +Prado.Callback = function(ID, params, onSuccess, options) +{ + var callback = + { + 'params' : [params] || [], + 'onSuccess' : onSuccess || Prototype.emptyFunction, + 'CausesValidation' : true + }; + + Object.extend(callback, options || {}); + + new Prado.AJAX.Callback(ID, callback); + return false; +} + +/* +Copyright (c) 2005 JSON.org + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The Software shall be used for Good, not Evil. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +SOFTWARE. +*/ + +Array.prototype.______array = '______array'; + +Prado.AJAX.JSON = { + org: 'http://www.JSON.org', + copyright: '(c)2005 JSON.org', + license: 'http://www.crockford.com/JSON/license.html', + + stringify: function (arg) { + var c, i, l, s = '', v; + + switch (typeof arg) { + case 'object': + if (arg) { + if (arg.______array == '______array') { + for (i = 0; i < arg.length; ++i) { + v = this.stringify(arg[i]); + if (s) { + s += ','; + } + s += v; + } + return '[' + s + ']'; + } else if (typeof arg.toString != 'undefined') { + for (i in arg) { + v = arg[i]; + if (typeof v != 'undefined' && typeof v != 'function') { + v = this.stringify(v); + if (s) { + s += ','; + } + s += this.stringify(i) + ':' + v; + } + } + return '{' + s + '}'; + } + } + return 'null'; + case 'number': + return isFinite(arg) ? String(arg) : 'null'; + case 'string': + l = arg.length; + s = '"'; + for (i = 0; i < l; i += 1) { + c = arg.charAt(i); + if (c >= ' ') { + if (c == '\\' || c == '"') { + s += '\\'; + } + s += c; + } else { + switch (c) { + case '\b': + s += '\\b'; + break; + case '\f': + s += '\\f'; + break; + case '\n': + s += '\\n'; + break; + case '\r': + s += '\\r'; + break; + case '\t': + s += '\\t'; + break; + default: + c = c.charCodeAt(); + s += '\\u00' + Math.floor(c / 16).toString(16) + + (c % 16).toString(16); + } + } + } + return s + '"'; + case 'boolean': + return String(arg); + default: + return 'null'; + } + }, + parse: function (text) { + var at = 0; + var ch = ' '; + + function error(m) { + throw { + name: 'JSONError', + message: m, + at: at - 1, + text: text + }; + } + + function next() { + ch = text.charAt(at); + at += 1; + return ch; + } + + function white() { + while (ch) { + if (ch <= ' ') { + next(); + } else if (ch == '/') { + switch (next()) { + case '/': + while (next() && ch != '\n' && ch != '\r') {} + break; + case '*': + next(); + for (;;) { + if (ch) { + if (ch == '*') { + if (next() == '/') { + next(); + break; + } + } else { + next(); + } + } else { + error("Unterminated comment"); + } + } + break; + default: + error("Syntax error"); + } + } else { + break; + } + } + } + + function string() { + var i, s = '', t, u; + + if (ch == '"') { +outer: while (next()) { + if (ch == '"') { + next(); + return s; + } else if (ch == '\\') { + switch (next()) { + case 'b': + s += '\b'; + break; + case 'f': + s += '\f'; + break; + case 'n': + s += '\n'; + break; + case 'r': + s += '\r'; + break; + case 't': + s += '\t'; + break; + case 'u': + u = 0; + for (i = 0; i < 4; i += 1) { + t = parseInt(next(), 16); + if (!isFinite(t)) { + break outer; + } + u = u * 16 + t; + } + s += String.fromCharCode(u); + break; + default: + s += ch; + } + } else { + s += ch; + } + } + } + error("Bad string"); + } + + function array() { + var a = []; + + if (ch == '[') { + next(); + white(); + if (ch == ']') { + next(); + return a; + } + while (ch) { + a.push(value()); + white(); + if (ch == ']') { + next(); + return a; + } else if (ch != ',') { + break; + } + next(); + white(); + } + } + error("Bad array"); + } + + function object() { + var k, o = {}; + + if (ch == '{') { + next(); + white(); + if (ch == '}') { + next(); + return o; + } + while (ch) { + k = string(); + white(); + if (ch != ':') { + break; + } + next(); + o[k] = value(); + white(); + if (ch == '}') { + next(); + return o; + } else if (ch != ',') { + break; + } + next(); + white(); + } + } + error("Bad object"); + } + + function number() { + var n = '', v; + if (ch == '-') { + n = '-'; + next(); + } + while (ch >= '0' && ch <= '9') { + n += ch; + next(); + } + if (ch == '.') { + n += '.'; + while (next() && ch >= '0' && ch <= '9') { + n += ch; + } + } + if (ch == 'e' || ch == 'E') { + n += 'e'; + next(); + if (ch == '-' || ch == '+') { + n += ch; + next(); + } + while (ch >= '0' && ch <= '9') { + n += ch; + next(); + } + } + v = +n; + if (!isFinite(v)) { + ////error("Bad number"); + } else { + return v; + } + } + + function word() { + switch (ch) { + case 't': + if (next() == 'r' && next() == 'u' && next() == 'e') { + next(); + return true; + } + break; + case 'f': + if (next() == 'a' && next() == 'l' && next() == 's' && + next() == 'e') { + next(); + return false; + } + break; + case 'n': + if (next() == 'u' && next() == 'l' && next() == 'l') { + next(); + return null; + } + break; + } + error("Syntax error"); + } + + function value() { + white(); + switch (ch) { + case '{': + return object(); + case '[': + return array(); + case '"': + return string(); + case '-': + return number(); + default: + return ch >= '0' && ch <= '9' ? number() : word(); + } + } + + return value(); + } +}; + +// Copyright (c) 2005 Thomas Fuchs (http://script.aculo.us, http://mir.aculo.us) +// (c) 2005 Ivan Krstic (http://blogs.law.harvard.edu/ivan) +// (c) 2005 Jon Tirsen (http://www.tirsen.com) +// Contributors: +// Richard Livsey +// Rahul Bhargava +// Rob Wills +// +// See scriptaculous.js for full license. + +// Autocompleter.Base handles all the autocompletion functionality +// that's independent of the data source for autocompletion. This +// includes drawing the autocompletion menu, observing keyboard +// and mouse events, and similar. +// +// Specific autocompleters need to provide, at the very least, +// a getUpdatedChoices function that will be invoked every time +// the text inside the monitored textbox changes. This method +// should get the text for which to provide autocompletion by +// invoking this.getToken(), NOT by directly accessing +// this.element.value. This is to allow incremental tokenized +// autocompletion. Specific auto-completion logic (AJAX, etc) +// belongs in getUpdatedChoices. +// +// Tokenized incremental autocompletion is enabled automatically +// when an autocompleter is instantiated with the 'tokens' option +// in the options parameter, e.g.: +// new Ajax.Autocompleter('id','upd', '/url/', { tokens: ',' }); +// will incrementally autocomplete with a comma as the token. +// Additionally, ',' in the above example can be replaced with +// a token array, e.g. { tokens: [',', '\n'] } which +// enables autocompletion on multiple tokens. This is most +// useful when one of the tokens is \n (a newline), as it +// allows smart autocompletion after linebreaks. + +if(typeof Effect == 'undefined') + throw("controls.js requires including script.aculo.us' effects.js library"); + +var Autocompleter = {} +Autocompleter.Base = function() {}; +Autocompleter.Base.prototype = { + baseInitialize: function(element, update, options) { + this.element = $(element); + this.update = $(update); + this.hasFocus = false; + this.changed = false; + this.active = false; + this.index = 0; + this.entryCount = 0; + + if (this.setOptions) + this.setOptions(options); + else + this.options = options || {}; + + this.options.paramName = this.options.paramName || this.element.name; + this.options.tokens = this.options.tokens || []; + this.options.frequency = this.options.frequency || 0.4; + this.options.minChars = this.options.minChars || 1; + this.options.onShow = this.options.onShow || + function(element, update){ + if(!update.style.position || update.style.position=='absolute') { + update.style.position = 'absolute'; + Position.clone(element, update, {setHeight: false, offsetTop: element.offsetHeight}); + } + Effect.Appear(update,{duration:0.15}); + }; + this.options.onHide = this.options.onHide || + function(element, update){ new Effect.Fade(update,{duration:0.15}) }; + + if (typeof(this.options.tokens) == 'string') + this.options.tokens = new Array(this.options.tokens); + + this.observer = null; + + this.element.setAttribute('autocomplete','off'); + + Element.hide(this.update); + + Event.observe(this.element, "blur", this.onBlur.bindAsEventListener(this)); + Event.observe(this.element, "keypress", this.onKeyPress.bindAsEventListener(this)); + }, + + show: function() { + if(Element.getStyle(this.update, 'display')=='none') this.options.onShow(this.element, this.update); + if(!this.iefix && + (navigator.appVersion.indexOf('MSIE')>0) && + (navigator.userAgent.indexOf('Opera')<0) && + (Element.getStyle(this.update, 'position')=='absolute')) { + new Insertion.After(this.update, + ''); + this.iefix = $(this.update.id+'_iefix'); + } + if(this.iefix) setTimeout(this.fixIEOverlapping.bind(this), 50); + }, + + fixIEOverlapping: function() { + Position.clone(this.update, this.iefix, {setTop:(!this.update.style.height)}); + this.iefix.style.zIndex = 1; + this.update.style.zIndex = 2; + Element.show(this.iefix); + }, + + hide: function() { + this.stopIndicator(); + if(Element.getStyle(this.update, 'display')!='none') this.options.onHide(this.element, this.update); + if(this.iefix) Element.hide(this.iefix); + }, + + startIndicator: function() { + if(this.options.indicator) Element.show(this.options.indicator); + }, + + stopIndicator: function() { + if(this.options.indicator) Element.hide(this.options.indicator); + }, + + onKeyPress: function(event) { + if(this.active) + switch(event.keyCode) { + case Event.KEY_TAB: + case Event.KEY_RETURN: + this.selectEntry(); + Event.stop(event); + case Event.KEY_ESC: + this.hide(); + this.active = false; + Event.stop(event); + return; + case Event.KEY_LEFT: + case Event.KEY_RIGHT: + return; + case Event.KEY_UP: + this.markPrevious(); + this.render(); + if(navigator.appVersion.indexOf('AppleWebKit')>0) Event.stop(event); + return; + case Event.KEY_DOWN: + this.markNext(); + this.render(); + if(navigator.appVersion.indexOf('AppleWebKit')>0) Event.stop(event); + return; + } + else + if(event.keyCode==Event.KEY_TAB || event.keyCode==Event.KEY_RETURN || + (navigator.appVersion.indexOf('AppleWebKit') > 0 && event.keyCode == 0)) return; + + this.changed = true; + this.hasFocus = true; + + if(this.observer) clearTimeout(this.observer); + this.observer = + setTimeout(this.onObserverEvent.bind(this), this.options.frequency*1000); + }, + + activate: function() { + this.changed = false; + this.hasFocus = true; + this.getUpdatedChoices(); + }, + + onHover: function(event) { + var element = Event.findElement(event, 'LI'); + if(this.index != element.autocompleteIndex) + { + this.index = element.autocompleteIndex; + this.render(); + } + Event.stop(event); + }, + + onClick: function(event) { + var element = Event.findElement(event, 'LI'); + this.index = element.autocompleteIndex; + this.selectEntry(); + this.hide(); + }, + + onBlur: function(event) { + // needed to make click events working + setTimeout(this.hide.bind(this), 250); + this.hasFocus = false; + this.active = false; + }, + + render: function() { + if(this.entryCount > 0) { + for (var i = 0; i < this.entryCount; i++) + this.index==i ? + Element.addClassName(this.getEntry(i),"selected") : + Element.removeClassName(this.getEntry(i),"selected"); + + if(this.hasFocus) { + this.show(); + this.active = true; + } + } else { + this.active = false; + this.hide(); + } + }, + + markPrevious: function() { + if(this.index > 0) this.index-- + else this.index = this.entryCount-1; + this.getEntry(this.index).scrollIntoView(true); + }, + + markNext: function() { + if(this.index < this.entryCount-1) this.index++ + else this.index = 0; + this.getEntry(this.index).scrollIntoView(false); + }, + + getEntry: function(index) { + return this.update.firstChild.childNodes[index]; + }, + + getCurrentEntry: function() { + return this.getEntry(this.index); + }, + + selectEntry: function() { + this.active = false; + this.updateElement(this.getCurrentEntry()); + }, + + updateElement: function(selectedElement) { + if (this.options.updateElement) { + this.options.updateElement(selectedElement); + return; + } + var value = ''; + if (this.options.select) { + var nodes = document.getElementsByClassName(this.options.select, selectedElement) || []; + if(nodes.length>0) value = Element.collectTextNodes(nodes[0], this.options.select); + } else + value = Element.collectTextNodesIgnoreClass(selectedElement, 'informal'); + + var lastTokenPos = this.findLastToken(); + if (lastTokenPos != -1) { + var newValue = this.element.value.substr(0, lastTokenPos + 1); + var whitespace = this.element.value.substr(lastTokenPos + 1).match(/^\s+/); + if (whitespace) + newValue += whitespace[0]; + this.element.value = newValue + value; + } else { + this.element.value = value; + } + this.element.focus(); + + if (this.options.afterUpdateElement) + this.options.afterUpdateElement(this.element, selectedElement); + }, + + updateChoices: function(choices) { + if(!this.changed && this.hasFocus) { + this.update.innerHTML = choices; + Element.cleanWhitespace(this.update); + Element.cleanWhitespace(this.update.firstChild); + + if(this.update.firstChild && this.update.firstChild.childNodes) { + this.entryCount = + this.update.firstChild.childNodes.length; + for (var i = 0; i < this.entryCount; i++) { + var entry = this.getEntry(i); + entry.autocompleteIndex = i; + this.addObservers(entry); + } + } else { + this.entryCount = 0; + } + + this.stopIndicator(); + + this.index = 0; + this.render(); + } + }, + + addObservers: function(element) { + Event.observe(element, "mouseover", this.onHover.bindAsEventListener(this)); + Event.observe(element, "click", this.onClick.bindAsEventListener(this)); + }, + + onObserverEvent: function() { + this.changed = false; + if(this.getToken().length>=this.options.minChars) { + this.startIndicator(); + this.getUpdatedChoices(); + } else { + this.active = false; + this.hide(); + } + }, + + getToken: function() { + var tokenPos = this.findLastToken(); + if (tokenPos != -1) + var ret = this.element.value.substr(tokenPos + 1).replace(/^\s+/,'').replace(/\s+$/,''); + else + var ret = this.element.value; + + return /\n/.test(ret) ? '' : ret; + }, + + findLastToken: function() { + var lastTokenPos = -1; + + for (var i=0; i lastTokenPos) + lastTokenPos = thisTokenPos; + } + return lastTokenPos; + } +} + +Ajax.Autocompleter = Class.create(); +Object.extend(Object.extend(Ajax.Autocompleter.prototype, Autocompleter.Base.prototype), { + initialize: function(element, update, url, options) { + this.baseInitialize(element, update, options); + this.options.asynchronous = true; + this.options.onComplete = this.onComplete.bind(this); + this.options.defaultParams = this.options.parameters || null; + this.url = url; + }, + + getUpdatedChoices: function() { + entry = encodeURIComponent(this.options.paramName) + '=' + + encodeURIComponent(this.getToken()); + + this.options.parameters = this.options.callback ? + this.options.callback(this.element, entry) : entry; + + if(this.options.defaultParams) + this.options.parameters += '&' + this.options.defaultParams; + + new Ajax.Request(this.url, this.options); + }, + + onComplete: function(request) { + this.updateChoices(request.responseText); + } + +}); + +// The local array autocompleter. Used when you'd prefer to +// inject an array of autocompletion options into the page, rather +// than sending out Ajax queries, which can be quite slow sometimes. +// +// The constructor takes four parameters. The first two are, as usual, +// the id of the monitored textbox, and id of the autocompletion menu. +// The third is the array you want to autocomplete from, and the fourth +// is the options block. +// +// Extra local autocompletion options: +// - choices - How many autocompletion choices to offer +// +// - partialSearch - If false, the autocompleter will match entered +// text only at the beginning of strings in the +// autocomplete array. Defaults to true, which will +// match text at the beginning of any *word* in the +// strings in the autocomplete array. If you want to +// search anywhere in the string, additionally set +// the option fullSearch to true (default: off). +// +// - fullSsearch - Search anywhere in autocomplete array strings. +// +// - partialChars - How many characters to enter before triggering +// a partial match (unlike minChars, which defines +// how many characters are required to do any match +// at all). Defaults to 2. +// +// - ignoreCase - Whether to ignore case when autocompleting. +// Defaults to true. +// +// It's possible to pass in a custom function as the 'selector' +// option, if you prefer to write your own autocompletion logic. +// In that case, the other options above will not apply unless +// you support them. + +Autocompleter.Local = Class.create(); +Autocompleter.Local.prototype = Object.extend(new Autocompleter.Base(), { + initialize: function(element, update, array, options) { + this.baseInitialize(element, update, options); + this.options.array = array; + }, + + getUpdatedChoices: function() { + this.updateChoices(this.options.selector(this)); + }, + + setOptions: function(options) { + this.options = Object.extend({ + choices: 10, + partialSearch: true, + partialChars: 2, + ignoreCase: true, + fullSearch: false, + selector: function(instance) { + var ret = []; // Beginning matches + var partial = []; // Inside matches + var entry = instance.getToken(); + var count = 0; + + for (var i = 0; i < instance.options.array.length && + ret.length < instance.options.choices ; i++) { + + var elem = instance.options.array[i]; + var foundPos = instance.options.ignoreCase ? + elem.toLowerCase().indexOf(entry.toLowerCase()) : + elem.indexOf(entry); + + while (foundPos != -1) { + if (foundPos == 0 && elem.length != entry.length) { + ret.push("
  • " + elem.substr(0, entry.length) + "" + + elem.substr(entry.length) + "
    • "); + break; + } else if (entry.length >= instance.options.partialChars && + instance.options.partialSearch && foundPos != -1) { + if (instance.options.fullSearch || /\s/.test(elem.substr(foundPos-1,1))) { + partial.push("
  • " + elem.substr(0, foundPos) + "" + + elem.substr(foundPos, entry.length) + "" + elem.substr( + foundPos + entry.length) + "
    • "); + break; + } + } + + foundPos = instance.options.ignoreCase ? + elem.toLowerCase().indexOf(entry.toLowerCase(), foundPos + 1) : + elem.indexOf(entry, foundPos + 1); + + } + } + if (partial.length) + ret = ret.concat(partial.slice(0, instance.options.choices - ret.length)) + return "
      " + ret.join('') + "
    "; + } + }, options || {}); + } +}); + +// AJAX in-place editor +// +// see documentation on http://wiki.script.aculo.us/scriptaculous/show/Ajax.InPlaceEditor + +// Use this if you notice weird scrolling problems on some browsers, +// the DOM might be a bit confused when this gets called so do this +// waits 1 ms (with setTimeout) until it does the activation +Field.scrollFreeActivate = function(field) { + setTimeout(function() { + Field.activate(field); + }, 1); +} + +Ajax.InPlaceEditor = Class.create(); +Ajax.InPlaceEditor.defaultHighlightColor = "#FFFF99"; +Ajax.InPlaceEditor.prototype = { + initialize: function(element, url, options) { + this.url = url; + this.element = $(element); + + this.options = Object.extend({ + okButton: true, + okText: "ok", + cancelLink: true, + cancelText: "cancel", + savingText: "Saving...", + clickToEditText: "Click to edit", + okText: "ok", + rows: 1, + onComplete: function(transport, element) { + new Effect.Highlight(element, {startcolor: this.options.highlightcolor}); + }, + onFailure: function(transport) { + alert("Error communicating with the server: " + transport.responseText.stripTags()); + }, + callback: function(form) { + return Form.serialize(form); + }, + handleLineBreaks: true, + loadingText: 'Loading...', + savingClassName: 'inplaceeditor-saving', + loadingClassName: 'inplaceeditor-loading', + formClassName: 'inplaceeditor-form', + highlightcolor: Ajax.InPlaceEditor.defaultHighlightColor, + highlightendcolor: "#FFFFFF", + externalControl: null, + submitOnBlur: false, + ajaxOptions: {}, + evalScripts: false + }, options || {}); + + if(!this.options.formId && this.element.id) { + this.options.formId = this.element.id + "-inplaceeditor"; + if ($(this.options.formId)) { + // there's already a form with that name, don't specify an id + this.options.formId = null; + } + } + + if (this.options.externalControl) { + this.options.externalControl = $(this.options.externalControl); + } + + this.originalBackground = Element.getStyle(this.element, 'background-color'); + if (!this.originalBackground) { + this.originalBackground = "transparent"; + } + + this.element.title = this.options.clickToEditText; + + this.onclickListener = this.enterEditMode.bindAsEventListener(this); + this.mouseoverListener = this.enterHover.bindAsEventListener(this); + this.mouseoutListener = this.leaveHover.bindAsEventListener(this); + Event.observe(this.element, 'click', this.onclickListener); + Event.observe(this.element, 'mouseover', this.mouseoverListener); + Event.observe(this.element, 'mouseout', this.mouseoutListener); + if (this.options.externalControl) { + Event.observe(this.options.externalControl, 'click', this.onclickListener); + Event.observe(this.options.externalControl, 'mouseover', this.mouseoverListener); + Event.observe(this.options.externalControl, 'mouseout', this.mouseoutListener); + } + }, + enterEditMode: function(evt) { + if (this.saving) return; + if (this.editing) return; + this.editing = true; + this.onEnterEditMode(); + if (this.options.externalControl) { + Element.hide(this.options.externalControl); + } + Element.hide(this.element); + this.createForm(); + this.element.parentNode.insertBefore(this.form, this.element); + if (!this.options.loadTextURL) Field.scrollFreeActivate(this.editField); + // stop the event to avoid a page refresh in Safari + if (evt) { + Event.stop(evt); + } + return false; + }, + createForm: function() { + this.form = document.createElement("form"); + this.form.id = this.options.formId; + Element.addClassName(this.form, this.options.formClassName) + this.form.onsubmit = this.onSubmit.bind(this); + + this.createEditField(); + + if (this.options.textarea) { + var br = document.createElement("br"); + this.form.appendChild(br); + } + + if (this.options.okButton) { + okButton = document.createElement("input"); + okButton.type = "submit"; + okButton.value = this.options.okText; + okButton.className = 'editor_ok_button'; + this.form.appendChild(okButton); + } + + if (this.options.cancelLink) { + cancelLink = document.createElement("a"); + cancelLink.href = "#"; + cancelLink.appendChild(document.createTextNode(this.options.cancelText)); + cancelLink.onclick = this.onclickCancel.bind(this); + cancelLink.className = 'editor_cancel'; + this.form.appendChild(cancelLink); + } + }, + hasHTMLLineBreaks: function(string) { + if (!this.options.handleLineBreaks) return false; + return string.match(/
    /i); + }, + convertHTMLLineBreaks: function(string) { + return string.replace(/
    /gi, "\n").replace(//gi, "\n").replace(/<\/p>/gi, "\n").replace(/

    /gi, ""); + }, + createEditField: function() { + var text; + if(this.options.loadTextURL) { + text = this.options.loadingText; + } else { + text = this.getText(); + } + + var obj = this; + + if (this.options.rows == 1 && !this.hasHTMLLineBreaks(text)) { + this.options.textarea = false; + var textField = document.createElement("input"); + textField.obj = this; + textField.type = "text"; + textField.name = "value"; + textField.value = text; + textField.style.backgroundColor = this.options.highlightcolor; + textField.className = 'editor_field'; + var size = this.options.size || this.options.cols || 0; + if (size != 0) textField.size = size; + if (this.options.submitOnBlur) + textField.onblur = this.onSubmit.bind(this); + this.editField = textField; + } else { + this.options.textarea = true; + var textArea = document.createElement("textarea"); + textArea.obj = this; + textArea.name = "value"; + textArea.value = this.convertHTMLLineBreaks(text); + textArea.rows = this.options.rows; + textArea.cols = this.options.cols || 40; + textArea.className = 'editor_field'; + if (this.options.submitOnBlur) + textArea.onblur = this.onSubmit.bind(this); + this.editField = textArea; + } + + if(this.options.loadTextURL) { + this.loadExternalText(); + } + this.form.appendChild(this.editField); + }, + getText: function() { + return this.element.innerHTML; + }, + loadExternalText: function() { + Element.addClassName(this.form, this.options.loadingClassName); + this.editField.disabled = true; + new Ajax.Request( + this.options.loadTextURL, + Object.extend({ + asynchronous: true, + onComplete: this.onLoadedExternalText.bind(this) + }, this.options.ajaxOptions) + ); + }, + onLoadedExternalText: function(transport) { + Element.removeClassName(this.form, this.options.loadingClassName); + this.editField.disabled = false; + this.editField.value = transport.responseText.stripTags(); + Field.scrollFreeActivate(this.editField); + }, + onclickCancel: function() { + this.onComplete(); + this.leaveEditMode(); + return false; + }, + onFailure: function(transport) { + this.options.onFailure(transport); + if (this.oldInnerHTML) { + this.element.innerHTML = this.oldInnerHTML; + this.oldInnerHTML = null; + } + return false; + }, + onSubmit: function() { + // onLoading resets these so we need to save them away for the Ajax call + var form = this.form; + var value = this.editField.value; + + // do this first, sometimes the ajax call returns before we get a chance to switch on Saving... + // which means this will actually switch on Saving... *after* we've left edit mode causing Saving... + // to be displayed indefinitely + this.onLoading(); + + if (this.options.evalScripts) { + new Ajax.Request( + this.url, Object.extend({ + parameters: this.options.callback(form, value), + onComplete: this.onComplete.bind(this), + onFailure: this.onFailure.bind(this), + asynchronous:true, + evalScripts:true + }, this.options.ajaxOptions)); + } else { + new Ajax.Updater( + { success: this.element, + // don't update on failure (this could be an option) + failure: null }, + this.url, Object.extend({ + parameters: this.options.callback(form, value), + onComplete: this.onComplete.bind(this), + onFailure: this.onFailure.bind(this) + }, this.options.ajaxOptions)); + } + // stop the event to avoid a page refresh in Safari + if (arguments.length > 1) { + Event.stop(arguments[0]); + } + return false; + }, + onLoading: function() { + this.saving = true; + this.removeForm(); + this.leaveHover(); + this.showSaving(); + }, + showSaving: function() { + this.oldInnerHTML = this.element.innerHTML; + this.element.innerHTML = this.options.savingText; + Element.addClassName(this.element, this.options.savingClassName); + this.element.style.backgroundColor = this.originalBackground; + Element.show(this.element); + }, + removeForm: function() { + if(this.form) { + if (this.form.parentNode) Element.remove(this.form); + this.form = null; + } + }, + enterHover: function() { + if (this.saving) return; + this.element.style.backgroundColor = this.options.highlightcolor; + if (this.effect) { + this.effect.cancel(); + } + Element.addClassName(this.element, this.options.hoverClassName) + }, + leaveHover: function() { + if (this.options.backgroundColor) { + this.element.style.backgroundColor = this.oldBackground; + } + Element.removeClassName(this.element, this.options.hoverClassName) + if (this.saving) return; + this.effect = new Effect.Highlight(this.element, { + startcolor: this.options.highlightcolor, + endcolor: this.options.highlightendcolor, + restorecolor: this.originalBackground + }); + }, + leaveEditMode: function() { + Element.removeClassName(this.element, this.options.savingClassName); + this.removeForm(); + this.leaveHover(); + this.element.style.backgroundColor = this.originalBackground; + Element.show(this.element); + if (this.options.externalControl) { + Element.show(this.options.externalControl); + } + this.editing = false; + this.saving = false; + this.oldInnerHTML = null; + this.onLeaveEditMode(); + }, + onComplete: function(transport) { + this.leaveEditMode(); + this.options.onComplete.bind(this)(transport, this.element); + }, + onEnterEditMode: function() {}, + onLeaveEditMode: function() {}, + dispose: function() { + if (this.oldInnerHTML) { + this.element.innerHTML = this.oldInnerHTML; + } + this.leaveEditMode(); + Event.stopObserving(this.element, 'click', this.onclickListener); + Event.stopObserving(this.element, 'mouseover', this.mouseoverListener); + Event.stopObserving(this.element, 'mouseout', this.mouseoutListener); + if (this.options.externalControl) { + Event.stopObserving(this.options.externalControl, 'click', this.onclickListener); + Event.stopObserving(this.options.externalControl, 'mouseover', this.mouseoverListener); + Event.stopObserving(this.options.externalControl, 'mouseout', this.mouseoutListener); + } + } +}; + +Ajax.InPlaceCollectionEditor = Class.create(); +Object.extend(Ajax.InPlaceCollectionEditor.prototype, Ajax.InPlaceEditor.prototype); +Object.extend(Ajax.InPlaceCollectionEditor.prototype, { + createEditField: function() { + if (!this.cached_selectTag) { + var selectTag = document.createElement("select"); + var collection = this.options.collection || []; + var optionTag; + collection.each(function(e,i) { + optionTag = document.createElement("option"); + optionTag.value = (e instanceof Array) ? e[0] : e; + if(this.options.value==optionTag.value) optionTag.selected = true; + optionTag.appendChild(document.createTextNode((e instanceof Array) ? e[1] : e)); + selectTag.appendChild(optionTag); + }.bind(this)); + this.cached_selectTag = selectTag; + } + + this.editField = this.cached_selectTag; + if(this.options.loadTextURL) this.loadExternalText(); + this.form.appendChild(this.editField); + this.options.callback = function(form, value) { + return "value=" + encodeURIComponent(value); + } + } +}); + +// Delayed observer, like Form.Element.Observer, +// but waits for delay after last key input +// Ideal for live-search fields + +Form.Element.DelayedObserver = Class.create(); +Form.Element.DelayedObserver.prototype = { + initialize: function(element, delay, callback) { + this.delay = delay || 0.5; + this.element = $(element); + this.callback = callback; + this.timer = null; + this.lastValue = $F(this.element); + Event.observe(this.element,'keyup',this.delayedListener.bindAsEventListener(this)); + }, + delayedListener: function(event) { + if(this.lastValue == $F(this.element)) return; + if(this.timer) clearTimeout(this.timer); + this.timer = setTimeout(this.onTimerEvent.bind(this), this.delay * 1000); + this.lastValue = $F(this.element); + }, + onTimerEvent: function() { + this.timer = null; + this.callback(this.element, $F(this.element)); + } +}; + + +// Copyright (c) 2005 Thomas Fuchs (http://script.aculo.us, http://mir.aculo.us) +// (c) 2005 Sammi Williams (http://www.oriontransfer.co.nz, sammi@oriontransfer.co.nz) +// +// See scriptaculous.js for full license. + +/*--------------------------------------------------------------------------*/ + +if(typeof Effect == 'undefined') + throw("dragdrop.js requires including script.aculo.us' effects.js library"); + +var Droppables = { + drops: [], + + remove: function(element) { + this.drops = this.drops.reject(function(d) { return d.element==$(element) }); + }, + + add: function(element) { + element = $(element); + var options = Object.extend({ + greedy: true, + hoverclass: null, + tree: false + }, arguments[1] || {}); + + // cache containers + if(options.containment) { + options._containers = []; + var containment = options.containment; + if((typeof containment == 'object') && + (containment.constructor == Array)) { + containment.each( function(c) { options._containers.push($(c)) }); + } else { + options._containers.push($(containment)); + } + } + + if(options.accept) options.accept = [options.accept].flatten(); + + Element.makePositioned(element); // fix IE + options.element = element; + + this.drops.push(options); + }, + + findDeepestChild: function(drops) { + deepest = drops[0]; + + for (i = 1; i < drops.length; ++i) + if (Element.isParent(drops[i].element, deepest.element)) + deepest = drops[i]; + + return deepest; + }, + + isContained: function(element, drop) { + var containmentNode; + if(drop.tree) { + containmentNode = element.treeNode; + } else { + containmentNode = element.parentNode; + } + return drop._containers.detect(function(c) { return containmentNode == c }); + }, + + isAffected: function(point, element, drop) { + return ( + (drop.element!=element) && + ((!drop._containers) || + this.isContained(element, drop)) && + ((!drop.accept) || + (Element.classNames(element).detect( + function(v) { return drop.accept.include(v) } ) )) && + Position.within(drop.element, point[0], point[1]) ); + }, + + deactivate: function(drop) { + if(drop.hoverclass) + Element.removeClassName(drop.element, drop.hoverclass); + this.last_active = null; + }, + + activate: function(drop) { + if(drop.hoverclass) + Element.addClassName(drop.element, drop.hoverclass); + this.last_active = drop; + }, + + show: function(point, element) { + if(!this.drops.length) return; + var affected = []; + + if(this.last_active) this.deactivate(this.last_active); + this.drops.each( function(drop) { + if(Droppables.isAffected(point, element, drop)) + affected.push(drop); + }); + + if(affected.length>0) { + drop = Droppables.findDeepestChild(affected); + Position.within(drop.element, point[0], point[1]); + if(drop.onHover) + drop.onHover(element, drop.element, Position.overlap(drop.overlap, drop.element)); + + Droppables.activate(drop); + } + }, + + fire: function(event, element) { + if(!this.last_active) return; + Position.prepare(); + + if (this.isAffected([Event.pointerX(event), Event.pointerY(event)], element, this.last_active)) + if (this.last_active.onDrop) + this.last_active.onDrop(element, this.last_active.element, event); + }, + + reset: function() { + if(this.last_active) + this.deactivate(this.last_active); + } +} + +var Draggables = { + drags: [], + observers: [], + + register: function(draggable) { + if(this.drags.length == 0) { + this.eventMouseUp = this.endDrag.bindAsEventListener(this); + this.eventMouseMove = this.updateDrag.bindAsEventListener(this); + this.eventKeypress = this.keyPress.bindAsEventListener(this); + + Event.observe(document, "mouseup", this.eventMouseUp); + Event.observe(document, "mousemove", this.eventMouseMove); + Event.observe(document, "keypress", this.eventKeypress); + } + this.drags.push(draggable); + }, + + unregister: function(draggable) { + this.drags = this.drags.reject(function(d) { return d==draggable }); + if(this.drags.length == 0) { + Event.stopObserving(document, "mouseup", this.eventMouseUp); + Event.stopObserving(document, "mousemove", this.eventMouseMove); + Event.stopObserving(document, "keypress", this.eventKeypress); + } + }, + + activate: function(draggable) { + window.focus(); // allows keypress events if window isn't currently focused, fails for Safari + this.activeDraggable = draggable; + }, + + deactivate: function() { + this.activeDraggable = null; + }, + + updateDrag: function(event) { + if(!this.activeDraggable) return; + var pointer = [Event.pointerX(event), Event.pointerY(event)]; + // Mozilla-based browsers fire successive mousemove events with + // the same coordinates, prevent needless redrawing (moz bug?) + if(this._lastPointer && (this._lastPointer.inspect() == pointer.inspect())) return; + this._lastPointer = pointer; + this.activeDraggable.updateDrag(event, pointer); + }, + + endDrag: function(event) { + if(!this.activeDraggable) return; + this._lastPointer = null; + this.activeDraggable.endDrag(event); + this.activeDraggable = null; + }, + + keyPress: function(event) { + if(this.activeDraggable) + this.activeDraggable.keyPress(event); + }, + + addObserver: function(observer) { + this.observers.push(observer); + this._cacheObserverCallbacks(); + }, + + removeObserver: function(element) { // element instead of observer fixes mem leaks + this.observers = this.observers.reject( function(o) { return o.element==element }); + this._cacheObserverCallbacks(); + }, + + notify: function(eventName, draggable, event) { // 'onStart', 'onEnd', 'onDrag' + if(this[eventName+'Count'] > 0) + this.observers.each( function(o) { + if(o[eventName]) o[eventName](eventName, draggable, event); + }); + }, + + _cacheObserverCallbacks: function() { + ['onStart','onEnd','onDrag'].each( function(eventName) { + Draggables[eventName+'Count'] = Draggables.observers.select( + function(o) { return o[eventName]; } + ).length; + }); + } +} + +/*--------------------------------------------------------------------------*/ + +var Draggable = Class.create(); +Draggable._revertCache = {}; +Draggable._dragging = {}; + +Draggable.prototype = { + initialize: function(element) { + var options = Object.extend({ + handle: false, + starteffect: function(element) { + element._opacity = Element.getOpacity(element); + Draggable._dragging[element] = true; + new Effect.Opacity(element, {duration:0.2, from:element._opacity, to:0.7}); + }, + reverteffect: function(element, top_offset, left_offset) { + var dur = Math.sqrt(Math.abs(top_offset^2)+Math.abs(left_offset^2))*0.02; + Draggable._revertCache[element] = + new Effect.Move(element, { x: -left_offset, y: -top_offset, duration: dur, + queue: {scope:'_draggable', position:'end'} + }); + }, + endeffect: function(element) { + var toOpacity = typeof element._opacity == 'number' ? element._opacity : 1.0; + new Effect.Opacity(element, {duration:0.2, from:0.7, to:toOpacity, + queue: {scope:'_draggable', position:'end'}, + afterFinish: function(){ Draggable._dragging[element] = false } + }); + }, + zindex: 1000, + revert: false, + scroll: false, + scrollSensitivity: 20, + scrollSpeed: 15, + snap: false // false, or xy or [x,y] or function(x,y){ return [x,y] } + }, arguments[1] || {}); + + this.element = $(element); + + if(options.handle && (typeof options.handle == 'string')) { + var h = Element.childrenWithClassName(this.element, options.handle, true); + if(h.length>0) this.handle = h[0]; + } + if(!this.handle) this.handle = $(options.handle); + if(!this.handle) this.handle = this.element; + + if(options.scroll && !options.scroll.scrollTo && !options.scroll.outerHTML) + options.scroll = $(options.scroll); + + Element.makePositioned(this.element); // fix IE + + this.delta = this.currentDelta(); + this.options = options; + this.dragging = false; + + this.eventMouseDown = this.initDrag.bindAsEventListener(this); + Event.observe(this.handle, "mousedown", this.eventMouseDown); + + Draggables.register(this); + }, + + destroy: function() { + Event.stopObserving(this.handle, "mousedown", this.eventMouseDown); + Draggables.unregister(this); + }, + + currentDelta: function() { + return([ + parseInt(Element.getStyle(this.element,'left') || '0'), + parseInt(Element.getStyle(this.element,'top') || '0')]); + }, + + initDrag: function(event) { + if(typeof Draggable._dragging[this.element] != undefined && + Draggable._dragging[this.element]) return; + if(Event.isLeftClick(event)) { + // abort on form elements, fixes a Firefox issue + var src = Event.element(event); + if(src.tagName && ( + src.tagName=='INPUT' || + src.tagName=='SELECT' || + src.tagName=='OPTION' || + src.tagName=='BUTTON' || + src.tagName=='TEXTAREA')) return; + + if(Draggable._revertCache[this.element]) { + Draggable._revertCache[this.element].cancel(); + Draggable._revertCache[this.element] = null; + } + + var pointer = [Event.pointerX(event), Event.pointerY(event)]; + var pos = Position.cumulativeOffset(this.element); + this.offset = [0,1].map( function(i) { return (pointer[i] - pos[i]) }); + + Draggables.activate(this); + Event.stop(event); + } + }, + + startDrag: function(event) { + this.dragging = true; + + if(this.options.zindex) { + this.originalZ = parseInt(Element.getStyle(this.element,'z-index') || 0); + this.element.style.zIndex = this.options.zindex; + } + + if(this.options.ghosting) { + this._clone = this.element.cloneNode(true); + Position.absolutize(this.element); + this.element.parentNode.insertBefore(this._clone, this.element); + } + + if(this.options.scroll) { + if (this.options.scroll == window) { + var where = this._getWindowScroll(this.options.scroll); + this.originalScrollLeft = where.left; + this.originalScrollTop = where.top; + } else { + this.originalScrollLeft = this.options.scroll.scrollLeft; + this.originalScrollTop = this.options.scroll.scrollTop; + } + } + + Draggables.notify('onStart', this, event); + if(this.options.starteffect) this.options.starteffect(this.element); + }, + + updateDrag: function(event, pointer) { + if(!this.dragging) this.startDrag(event); + Position.prepare(); + Droppables.show(pointer, this.element); + Draggables.notify('onDrag', this, event); + this.draw(pointer); + if(this.options.change) this.options.change(this); + + if(this.options.scroll) { + this.stopScrolling(); + + var p; + if (this.options.scroll == window) { + with(this._getWindowScroll(this.options.scroll)) { p = [ left, top, left+width, top+height ]; } + } else { + p = Position.page(this.options.scroll); + p[0] += this.options.scroll.scrollLeft; + p[1] += this.options.scroll.scrollTop; + p.push(p[0]+this.options.scroll.offsetWidth); + p.push(p[1]+this.options.scroll.offsetHeight); + } + var speed = [0,0]; + if(pointer[0] < (p[0]+this.options.scrollSensitivity)) speed[0] = pointer[0]-(p[0]+this.options.scrollSensitivity); + if(pointer[1] < (p[1]+this.options.scrollSensitivity)) speed[1] = pointer[1]-(p[1]+this.options.scrollSensitivity); + if(pointer[0] > (p[2]-this.options.scrollSensitivity)) speed[0] = pointer[0]-(p[2]-this.options.scrollSensitivity); + if(pointer[1] > (p[3]-this.options.scrollSensitivity)) speed[1] = pointer[1]-(p[3]-this.options.scrollSensitivity); + this.startScrolling(speed); + } + + // fix AppleWebKit rendering + if(navigator.appVersion.indexOf('AppleWebKit')>0) window.scrollBy(0,0); + + Event.stop(event); + }, + + finishDrag: function(event, success) { + this.dragging = false; + + if(this.options.ghosting) { + Position.relativize(this.element); + Element.remove(this._clone); + this._clone = null; + } + + if(success) Droppables.fire(event, this.element); + Draggables.notify('onEnd', this, event); + + var revert = this.options.revert; + if(revert && typeof revert == 'function') revert = revert(this.element); + + var d = this.currentDelta(); + if(revert && this.options.reverteffect) { + this.options.reverteffect(this.element, + d[1]-this.delta[1], d[0]-this.delta[0]); + } else { + this.delta = d; + } + + if(this.options.zindex) + this.element.style.zIndex = this.originalZ; + + if(this.options.endeffect) + this.options.endeffect(this.element); + + Draggables.deactivate(this); + Droppables.reset(); + }, + + keyPress: function(event) { + if(event.keyCode!=Event.KEY_ESC) return; + this.finishDrag(event, false); + Event.stop(event); + }, + + endDrag: function(event) { + if(!this.dragging) return; + this.stopScrolling(); + this.finishDrag(event, true); + Event.stop(event); + }, + + draw: function(point) { + var pos = Position.cumulativeOffset(this.element); + var d = this.currentDelta(); + pos[0] -= d[0]; pos[1] -= d[1]; + + if(this.options.scroll && (this.options.scroll != window)) { + pos[0] -= this.options.scroll.scrollLeft-this.originalScrollLeft; + pos[1] -= this.options.scroll.scrollTop-this.originalScrollTop; + } + + var p = [0,1].map(function(i){ + return (point[i]-pos[i]-this.offset[i]) + }.bind(this)); + + if(this.options.snap) { + if(typeof this.options.snap == 'function') { + p = this.options.snap(p[0],p[1],this); + } else { + if(this.options.snap instanceof Array) { + p = p.map( function(v, i) { + return Math.round(v/this.options.snap[i])*this.options.snap[i] }.bind(this)) + } else { + p = p.map( function(v) { + return Math.round(v/this.options.snap)*this.options.snap }.bind(this)) + } + }} + + var style = this.element.style; + if((!this.options.constraint) || (this.options.constraint=='horizontal')) + style.left = p[0] + "px"; + if((!this.options.constraint) || (this.options.constraint=='vertical')) + style.top = p[1] + "px"; + if(style.visibility=="hidden") style.visibility = ""; // fix gecko rendering + }, + + stopScrolling: function() { + if(this.scrollInterval) { + clearInterval(this.scrollInterval); + this.scrollInterval = null; + Draggables._lastScrollPointer = null; + } + }, + + startScrolling: function(speed) { + if(!(speed[0] || speed[1])) return; + this.scrollSpeed = [speed[0]*this.options.scrollSpeed,speed[1]*this.options.scrollSpeed]; + this.lastScrolled = new Date(); + this.scrollInterval = setInterval(this.scroll.bind(this), 10); + }, + + scroll: function() { + var current = new Date(); + var delta = current - this.lastScrolled; + this.lastScrolled = current; + if(this.options.scroll == window) { + with (this._getWindowScroll(this.options.scroll)) { + if (this.scrollSpeed[0] || this.scrollSpeed[1]) { + var d = delta / 1000; + this.options.scroll.scrollTo( left + d*this.scrollSpeed[0], top + d*this.scrollSpeed[1] ); + } + } + } else { + this.options.scroll.scrollLeft += this.scrollSpeed[0] * delta / 1000; + this.options.scroll.scrollTop += this.scrollSpeed[1] * delta / 1000; + } + + Position.prepare(); + Droppables.show(Draggables._lastPointer, this.element); + Draggables.notify('onDrag', this); + Draggables._lastScrollPointer = Draggables._lastScrollPointer || $A(Draggables._lastPointer); + Draggables._lastScrollPointer[0] += this.scrollSpeed[0] * delta / 1000; + Draggables._lastScrollPointer[1] += this.scrollSpeed[1] * delta / 1000; + if (Draggables._lastScrollPointer[0] < 0) + Draggables._lastScrollPointer[0] = 0; + if (Draggables._lastScrollPointer[1] < 0) + Draggables._lastScrollPointer[1] = 0; + this.draw(Draggables._lastScrollPointer); + + if(this.options.change) this.options.change(this); + }, + + _getWindowScroll: function(w) { + var T, L, W, H; + with (w.document) { + if (w.document.documentElement && documentElement.scrollTop) { + T = documentElement.scrollTop; + L = documentElement.scrollLeft; + } else if (w.document.body) { + T = body.scrollTop; + L = body.scrollLeft; + } + if (w.innerWidth) { + W = w.innerWidth; + H = w.innerHeight; + } else if (w.document.documentElement && documentElement.clientWidth) { + W = documentElement.clientWidth; + H = documentElement.clientHeight; + } else { + W = body.offsetWidth; + H = body.offsetHeight + } + } + return { top: T, left: L, width: W, height: H }; + } +} + +/*--------------------------------------------------------------------------*/ + +var SortableObserver = Class.create(); +SortableObserver.prototype = { + initialize: function(element, observer) { + this.element = $(element); + this.observer = observer; + this.lastValue = Sortable.serialize(this.element); + }, + + onStart: function() { + this.lastValue = Sortable.serialize(this.element); + }, + + onEnd: function() { + Sortable.unmark(); + if(this.lastValue != Sortable.serialize(this.element)) + this.observer(this.element) + } +} + +var Sortable = { + sortables: {}, + + _findRootElement: function(element) { + while (element.tagName != "BODY") { + if(element.id && Sortable.sortables[element.id]) return element; + element = element.parentNode; + } + }, + + options: function(element) { + element = Sortable._findRootElement($(element)); + if(!element) return; + return Sortable.sortables[element.id]; + }, + + destroy: function(element){ + var s = Sortable.options(element); + + if(s) { + Draggables.removeObserver(s.element); + s.droppables.each(function(d){ Droppables.remove(d) }); + s.draggables.invoke('destroy'); + + delete Sortable.sortables[s.element.id]; + } + }, + + create: function(element) { + element = $(element); + var options = Object.extend({ + element: element, + tag: 'li', // assumes li children, override with tag: 'tagname' + dropOnEmpty: false, + tree: false, + treeTag: 'ul', + overlap: 'vertical', // one of 'vertical', 'horizontal' + constraint: 'vertical', // one of 'vertical', 'horizontal', false + containment: element, // also takes array of elements (or id's); or false + handle: false, // or a CSS class + only: false, + hoverclass: null, + ghosting: false, + scroll: false, + scrollSensitivity: 20, + scrollSpeed: 15, + format: /^[^_]*_(.*)$/, + onChange: Prototype.emptyFunction, + onUpdate: Prototype.emptyFunction + }, arguments[1] || {}); + + // clear any old sortable with same element + this.destroy(element); + + // build options for the draggables + var options_for_draggable = { + revert: true, + scroll: options.scroll, + scrollSpeed: options.scrollSpeed, + scrollSensitivity: options.scrollSensitivity, + ghosting: options.ghosting, + constraint: options.constraint, + handle: options.handle }; + + if(options.starteffect) + options_for_draggable.starteffect = options.starteffect; + + if(options.reverteffect) + options_for_draggable.reverteffect = options.reverteffect; + else + if(options.ghosting) options_for_draggable.reverteffect = function(element) { + element.style.top = 0; + element.style.left = 0; + }; + + if(options.endeffect) + options_for_draggable.endeffect = options.endeffect; + + if(options.zindex) + options_for_draggable.zindex = options.zindex; + + // build options for the droppables + var options_for_droppable = { + overlap: options.overlap, + containment: options.containment, + tree: options.tree, + hoverclass: options.hoverclass, + onHover: Sortable.onHover + //greedy: !options.dropOnEmpty + } + + var options_for_tree = { + onHover: Sortable.onEmptyHover, + overlap: options.overlap, + containment: options.containment, + hoverclass: options.hoverclass + } + + // fix for gecko engine + Element.cleanWhitespace(element); + + options.draggables = []; + options.droppables = []; + + // drop on empty handling + if(options.dropOnEmpty || options.tree) { + Droppables.add(element, options_for_tree); + options.droppables.push(element); + } + + (this.findElements(element, options) || []).each( function(e) { + // handles are per-draggable + var handle = options.handle ? + Element.childrenWithClassName(e, options.handle)[0] : e; + options.draggables.push( + new Draggable(e, Object.extend(options_for_draggable, { handle: handle }))); + Droppables.add(e, options_for_droppable); + if(options.tree) e.treeNode = element; + options.droppables.push(e); + }); + + if(options.tree) { + (Sortable.findTreeElements(element, options) || []).each( function(e) { + Droppables.add(e, options_for_tree); + e.treeNode = element; + options.droppables.push(e); + }); + } + + // keep reference + this.sortables[element.id] = options; + + // for onupdate + Draggables.addObserver(new SortableObserver(element, options.onUpdate)); + + }, + + // return all suitable-for-sortable elements in a guaranteed order + findElements: function(element, options) { + return Element.findChildren( + element, options.only, options.tree ? true : false, options.tag); + }, + + findTreeElements: function(element, options) { + return Element.findChildren( + element, options.only, options.tree ? true : false, options.treeTag); + }, + + onHover: function(element, dropon, overlap) { + if(Element.isParent(dropon, element)) return; + + if(overlap > .33 && overlap < .66 && Sortable.options(dropon).tree) { + return; + } else if(overlap>0.5) { + Sortable.mark(dropon, 'before'); + if(dropon.previousSibling != element) { + var oldParentNode = element.parentNode; + element.style.visibility = "hidden"; // fix gecko rendering + dropon.parentNode.insertBefore(element, dropon); + if(dropon.parentNode!=oldParentNode) + Sortable.options(oldParentNode).onChange(element); + Sortable.options(dropon.parentNode).onChange(element); + } + } else { + Sortable.mark(dropon, 'after'); + var nextElement = dropon.nextSibling || null; + if(nextElement != element) { + var oldParentNode = element.parentNode; + element.style.visibility = "hidden"; // fix gecko rendering + dropon.parentNode.insertBefore(element, nextElement); + if(dropon.parentNode!=oldParentNode) + Sortable.options(oldParentNode).onChange(element); + Sortable.options(dropon.parentNode).onChange(element); + } + } + }, + + onEmptyHover: function(element, dropon, overlap) { + var oldParentNode = element.parentNode; + var droponOptions = Sortable.options(dropon); + + if(!Element.isParent(dropon, element)) { + var index; + + var children = Sortable.findElements(dropon, {tag: droponOptions.tag, only: droponOptions.only}); + var child = null; + + if(children) { + var offset = Element.offsetSize(dropon, droponOptions.overlap) * (1.0 - overlap); + + for (index = 0; index < children.length; index += 1) { + if (offset - Element.offsetSize (children[index], droponOptions.overlap) >= 0) { + offset -= Element.offsetSize (children[index], droponOptions.overlap); + } else if (offset - (Element.offsetSize (children[index], droponOptions.overlap) / 2) >= 0) { + child = index + 1 < children.length ? children[index + 1] : null; + break; + } else { + child = children[index]; + break; + } + } + } + + dropon.insertBefore(element, child); + + Sortable.options(oldParentNode).onChange(element); + droponOptions.onChange(element); + } + }, + + unmark: function() { + if(Sortable._marker) Element.hide(Sortable._marker); + }, + + mark: function(dropon, position) { + // mark on ghosting only + var sortable = Sortable.options(dropon.parentNode); + if(sortable && !sortable.ghosting) return; + + if(!Sortable._marker) { + Sortable._marker = $('dropmarker') || document.createElement('DIV'); + Element.hide(Sortable._marker); + Element.addClassName(Sortable._marker, 'dropmarker'); + Sortable._marker.style.position = 'absolute'; + document.getElementsByTagName("body").item(0).appendChild(Sortable._marker); + } + var offsets = Position.cumulativeOffset(dropon); + Sortable._marker.style.left = offsets[0] + 'px'; + Sortable._marker.style.top = offsets[1] + 'px'; + + if(position=='after') + if(sortable.overlap == 'horizontal') + Sortable._marker.style.left = (offsets[0]+dropon.clientWidth) + 'px'; + else + Sortable._marker.style.top = (offsets[1]+dropon.clientHeight) + 'px'; + + Element.show(Sortable._marker); + }, + + _tree: function(element, options, parent) { + var children = Sortable.findElements(element, options) || []; + + for (var i = 0; i < children.length; ++i) { + var match = children[i].id.match(options.format); + + if (!match) continue; + + var child = { + id: encodeURIComponent(match ? match[1] : null), + element: element, + parent: parent, + children: new Array, + position: parent.children.length, + container: Sortable._findChildrenElement(children[i], options.treeTag.toUpperCase()) + } + + /* Get the element containing the children and recurse over it */ + if (child.container) + this._tree(child.container, options, child) + + parent.children.push (child); + } + + return parent; + }, + + /* Finds the first element of the given tag type within a parent element. + Used for finding the first LI[ST] within a L[IST]I[TEM].*/ + _findChildrenElement: function (element, containerTag) { + if (element && element.hasChildNodes) + for (var i = 0; i < element.childNodes.length; ++i) + if (element.childNodes[i].tagName == containerTag) + return element.childNodes[i]; + + return null; + }, + + tree: function(element) { + element = $(element); + var sortableOptions = this.options(element); + var options = Object.extend({ + tag: sortableOptions.tag, + treeTag: sortableOptions.treeTag, + only: sortableOptions.only, + name: element.id, + format: sortableOptions.format + }, arguments[1] || {}); + + var root = { + id: null, + parent: null, + children: new Array, + container: element, + position: 0 + } + + return Sortable._tree (element, options, root); + }, + + /* Construct a [i] index for a particular node */ + _constructIndex: function(node) { + var index = ''; + do { + if (node.id) index = '[' + node.position + ']' + index; + } while ((node = node.parent) != null); + return index; + }, + + sequence: function(element) { + element = $(element); + var options = Object.extend(this.options(element), arguments[1] || {}); + + return $(this.findElements(element, options) || []).map( function(item) { + return item.id.match(options.format) ? item.id.match(options.format)[1] : ''; + }); + }, + + setSequence: function(element, new_sequence) { + element = $(element); + var options = Object.extend(this.options(element), arguments[2] || {}); + + var nodeMap = {}; + this.findElements(element, options).each( function(n) { + if (n.id.match(options.format)) + nodeMap[n.id.match(options.format)[1]] = [n, n.parentNode]; + n.parentNode.removeChild(n); + }); + + new_sequence.each(function(ident) { + var n = nodeMap[ident]; + if (n) { + n[1].appendChild(n[0]); + delete nodeMap[ident]; + } + }); + }, + + serialize: function(element) { + element = $(element); + var options = Object.extend(Sortable.options(element), arguments[1] || {}); + var name = encodeURIComponent( + (arguments[1] && arguments[1].name) ? arguments[1].name : element.id); + + if (options.tree) { + return Sortable.tree(element, arguments[1]).children.map( function (item) { + return [name + Sortable._constructIndex(item) + "[id]=" + + encodeURIComponent(item.id)].concat(item.children.map(arguments.callee)); + }).flatten().join('&'); + } else { + return Sortable.sequence(element, arguments[1]).map( function(item) { + return name + "[]=" + encodeURIComponent(item); + }).join('&'); + } + } +} + +/* Returns true if child is contained within element */ +Element.isParent = function(child, element) { + if (!child.parentNode || child == element) return false; + + if (child.parentNode == element) return true; + + return Element.isParent(child.parentNode, element); +} + +Element.findChildren = function(element, only, recursive, tagName) { + if(!element.hasChildNodes()) return null; + tagName = tagName.toUpperCase(); + if(only) only = [only].flatten(); + var elements = []; + $A(element.childNodes).each( function(e) { + if(e.tagName && e.tagName.toUpperCase()==tagName && + (!only || (Element.classNames(e).detect(function(v) { return only.include(v) })))) + elements.push(e); + if(recursive) { + var grandchildren = Element.findChildren(e, only, recursive, tagName); + if(grandchildren) elements.push(grandchildren); + } + }); + + return (elements.length>0 ? elements.flatten() : []); +} + +Element.offsetSize = function (element, type) { + if (type == 'vertical' || type == 'height') + return element.offsetHeight; + else + return element.offsetWidth; +} + +// Copyright (c) 2005 Marty Haught, Thomas Fuchs +// +// See http://script.aculo.us for more info +// +// Permission is hereby granted, free of charge, to any person obtaining +// a copy of this software and associated documentation files (the +// "Software"), to deal in the Software without restriction, including +// without limitation the rights to use, copy, modify, merge, publish, +// distribute, sublicense, and/or sell copies of the Software, and to +// permit persons to whom the Software is furnished to do so, subject to +// the following conditions: +// +// The above copyright notice and this permission notice shall be +// included in all copies or substantial portions of the Software. +// +// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, +// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND +// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE +// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION +// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION +// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + +if(!Control) var Control = {}; +Control.Slider = Class.create(); + +// options: +// axis: 'vertical', or 'horizontal' (default) +// +// callbacks: +// onChange(value) +// onSlide(value) +Control.Slider.prototype = { + initialize: function(handle, track, options) { + var slider = this; + + if(handle instanceof Array) { + this.handles = handle.collect( function(e) { return $(e) }); + } else { + this.handles = [$(handle)]; + } + + this.track = $(track); + this.options = options || {}; + + this.axis = this.options.axis || 'horizontal'; + this.increment = this.options.increment || 1; + this.step = parseInt(this.options.step || '1'); + this.range = this.options.range || $R(0,1); + + this.value = 0; // assure backwards compat + this.values = this.handles.map( function() { return 0 }); + this.spans = this.options.spans ? this.options.spans.map(function(s){ return $(s) }) : false; + this.options.startSpan = $(this.options.startSpan || null); + this.options.endSpan = $(this.options.endSpan || null); + + this.restricted = this.options.restricted || false; + + this.maximum = this.options.maximum || this.range.end; + this.minimum = this.options.minimum || this.range.start; + + // Will be used to align the handle onto the track, if necessary + this.alignX = parseInt(this.options.alignX || '0'); + this.alignY = parseInt(this.options.alignY || '0'); + + this.trackLength = this.maximumOffset() - this.minimumOffset(); + + this.handleLength = this.isVertical() ? + (this.handles[0].offsetHeight != 0 ? + this.handles[0].offsetHeight : this.handles[0].style.height.replace(/px$/,"")) : + (this.handles[0].offsetWidth != 0 ? this.handles[0].offsetWidth : + this.handles[0].style.width.replace(/px$/,"")); + + this.active = false; + this.dragging = false; + this.disabled = false; + + if(this.options.disabled) this.setDisabled(); + + // Allowed values array + this.allowedValues = this.options.values ? this.options.values.sortBy(Prototype.K) : false; + if(this.allowedValues) { + this.minimum = this.allowedValues.min(); + this.maximum = this.allowedValues.max(); + } + + this.eventMouseDown = this.startDrag.bindAsEventListener(this); + this.eventMouseUp = this.endDrag.bindAsEventListener(this); + this.eventMouseMove = this.update.bindAsEventListener(this); + + // Initialize handles in reverse (make sure first handle is active) + this.handles.each( function(h,i) { + i = slider.handles.length-1-i; + slider.setValue(parseFloat( + (slider.options.sliderValue instanceof Array ? + slider.options.sliderValue[i] : slider.options.sliderValue) || + slider.range.start), i); + Element.makePositioned(h); // fix IE + Event.observe(h, "mousedown", slider.eventMouseDown); + }); + + Event.observe(this.track, "mousedown", this.eventMouseDown); + Event.observe(document, "mouseup", this.eventMouseUp); + Event.observe(document, "mousemove", this.eventMouseMove); + + this.initialized = true; + }, + dispose: function() { + var slider = this; + Event.stopObserving(this.track, "mousedown", this.eventMouseDown); + Event.stopObserving(document, "mouseup", this.eventMouseUp); + Event.stopObserving(document, "mousemove", this.eventMouseMove); + this.handles.each( function(h) { + Event.stopObserving(h, "mousedown", slider.eventMouseDown); + }); + }, + setDisabled: function(){ + this.disabled = true; + }, + setEnabled: function(){ + this.disabled = false; + }, + getNearestValue: function(value){ + if(this.allowedValues){ + if(value >= this.allowedValues.max()) return(this.allowedValues.max()); + if(value <= this.allowedValues.min()) return(this.allowedValues.min()); + + var offset = Math.abs(this.allowedValues[0] - value); + var newValue = this.allowedValues[0]; + this.allowedValues.each( function(v) { + var currentOffset = Math.abs(v - value); + if(currentOffset <= offset){ + newValue = v; + offset = currentOffset; + } + }); + return newValue; + } + if(value > this.range.end) return this.range.end; + if(value < this.range.start) return this.range.start; + return value; + }, + setValue: function(sliderValue, handleIdx){ + if(!this.active) { + this.activeHandleIdx = handleIdx || 0; + this.activeHandle = this.handles[this.activeHandleIdx]; + this.updateStyles(); + } + handleIdx = handleIdx || this.activeHandleIdx || 0; + if(this.initialized && this.restricted) { + if((handleIdx>0) && (sliderValuethis.values[handleIdx+1])) + sliderValue = this.values[handleIdx+1]; + } + sliderValue = this.getNearestValue(sliderValue); + this.values[handleIdx] = sliderValue; + this.value = this.values[0]; // assure backwards compat + + this.handles[handleIdx].style[this.isVertical() ? 'top' : 'left'] = + this.translateToPx(sliderValue); + + this.drawSpans(); + if(!this.dragging || !this.event) this.updateFinished(); + }, + setValueBy: function(delta, handleIdx) { + this.setValue(this.values[handleIdx || this.activeHandleIdx || 0] + delta, + handleIdx || this.activeHandleIdx || 0); + }, + translateToPx: function(value) { + return Math.round( + ((this.trackLength-this.handleLength)/(this.range.end-this.range.start)) * + (value - this.range.start)) + "px"; + }, + translateToValue: function(offset) { + return ((offset/(this.trackLength-this.handleLength) * + (this.range.end-this.range.start)) + this.range.start); + }, + getRange: function(range) { + var v = this.values.sortBy(Prototype.K); + range = range || 0; + return $R(v[range],v[range+1]); + }, + minimumOffset: function(){ + return(this.isVertical() ? this.alignY : this.alignX); + }, + maximumOffset: function(){ + return(this.isVertical() ? + (this.track.offsetHeight != 0 ? this.track.offsetHeight : + this.track.style.height.replace(/px$/,"")) - this.alignY : + (this.track.offsetWidth != 0 ? this.track.offsetWidth : + this.track.style.width.replace(/px$/,"")) - this.alignY); + }, + isVertical: function(){ + return (this.axis == 'vertical'); + }, + drawSpans: function() { + var slider = this; + if(this.spans) + $R(0, this.spans.length-1).each(function(r) { slider.setSpan(slider.spans[r], slider.getRange(r)) }); + if(this.options.startSpan) + this.setSpan(this.options.startSpan, + $R(0, this.values.length>1 ? this.getRange(0).min() : this.value )); + if(this.options.endSpan) + this.setSpan(this.options.endSpan, + $R(this.values.length>1 ? this.getRange(this.spans.length-1).max() : this.value, this.maximum)); + }, + setSpan: function(span, range) { + if(this.isVertical()) { + span.style.top = this.translateToPx(range.start); + span.style.height = this.translateToPx(range.end - range.start + this.range.start); + } else { + span.style.left = this.translateToPx(range.start); + span.style.width = this.translateToPx(range.end - range.start + this.range.start); + } + }, + updateStyles: function() { + this.handles.each( function(h){ Element.removeClassName(h, 'selected') }); + Element.addClassName(this.activeHandle, 'selected'); + }, + startDrag: function(event) { + if(Event.isLeftClick(event)) { + if(!this.disabled){ + this.active = true; + + var handle = Event.element(event); + var pointer = [Event.pointerX(event), Event.pointerY(event)]; + var track = handle; + if(track==this.track) { + var offsets = Position.cumulativeOffset(this.track); + this.event = event; + this.setValue(this.translateToValue( + (this.isVertical() ? pointer[1]-offsets[1] : pointer[0]-offsets[0])-(this.handleLength/2) + )); + var offsets = Position.cumulativeOffset(this.activeHandle); + this.offsetX = (pointer[0] - offsets[0]); + this.offsetY = (pointer[1] - offsets[1]); + } else { + // find the handle (prevents issues with Safari) + while((this.handles.indexOf(handle) == -1) && handle.parentNode) + handle = handle.parentNode; + + this.activeHandle = handle; + this.activeHandleIdx = this.handles.indexOf(this.activeHandle); + this.updateStyles(); + + var offsets = Position.cumulativeOffset(this.activeHandle); + this.offsetX = (pointer[0] - offsets[0]); + this.offsetY = (pointer[1] - offsets[1]); + } + } + Event.stop(event); + } + }, + update: function(event) { + if(this.active) { + if(!this.dragging) this.dragging = true; + this.draw(event); + // fix AppleWebKit rendering + if(navigator.appVersion.indexOf('AppleWebKit')>0) window.scrollBy(0,0); + Event.stop(event); + } + }, + draw: function(event) { + var pointer = [Event.pointerX(event), Event.pointerY(event)]; + var offsets = Position.cumulativeOffset(this.track); + pointer[0] -= this.offsetX + offsets[0]; + pointer[1] -= this.offsetY + offsets[1]; + this.event = event; + this.setValue(this.translateToValue( this.isVertical() ? pointer[1] : pointer[0] )); + if(this.initialized && this.options.onSlide) + this.options.onSlide(this.values.length>1 ? this.values : this.value, this); + }, + endDrag: function(event) { + if(this.active && this.dragging) { + this.finishDrag(event, true); + Event.stop(event); + } + this.active = false; + this.dragging = false; + }, + finishDrag: function(event, success) { + this.active = false; + this.dragging = false; + this.updateFinished(); + }, + updateFinished: function() { + if(this.initialized && this.options.onChange) + this.options.onChange(this.values.length>1 ? this.values : this.value, this); + this.event = null; + } +} + +/** + * Auto complete textbox via AJAX. + */ +Prado.AutoCompleter = Class.create(); + + +/** + * Overrides parent implementation of updateElement by trimming the value. + */ +Prado.AutoCompleter.Base = function(){}; +Prado.AutoCompleter.Base.prototype = Object.extend(Autocompleter.Base.prototype, +{ + updateElement: function(selectedElement) + { + if (this.options.updateElement) { + this.options.updateElement(selectedElement); + return; + } + + var value = Element.collectTextNodesIgnoreClass(selectedElement, 'informal'); + var lastTokenPos = this.findLastToken(); + if (lastTokenPos != -1) { + var newValue = this.element.value.substr(0, lastTokenPos + 1); + var whitespace = this.element.value.substr(lastTokenPos + 1).match(/^\s+/); + if (whitespace) + newValue += whitespace[0]; + this.element.value = (newValue + value).trim(); + } else { + this.element.value = value.trim(); + } + this.element.focus(); + + if (this.options.afterUpdateElement) + this.options.afterUpdateElement(this.element, selectedElement); + } +}); + +/** + * Based on the Prototype Autocompleter class. + * This client-side component should be instantiated from a Prado component. + * Usage: new Prado.AutoCompleter('textboxID', 'updateDivID', {callbackID : '...'}); + */ +Prado.AutoCompleter.prototype = Object.extend(new Autocompleter.Base(), +{ + /** + * This component is initialized by + * new Prado.AutoCompleter(...) + * @param string the ID of the textbox element to observe + * @param string the ID of the div to display the auto-complete options + * @param array a hash of options, e.g. auto-completion token separator. + */ + initialize : function(element, update, options) + { + this.baseInitialize(element, update, options); + }, + + /** + * The callback function, i.e., function called on successful AJAX return. + * Calls update choices in the Autocompleter. + * @param string new auto-complete options for display + */ + onUpdateReturn : function(result) + { + if(isString(result) && result.length > 0) + this.updateChoices(result); + }, + + /** + * Requesting new choices using Prado's client-side callback scheme. + */ + getUpdatedChoices : function() + { + Prado.Callback(this.element.id, this.getToken(), this.onUpdateReturn.bind(this)); + } +}); + +/** + * Prado TActivePanel client javascript. Usage + * + * Prado.ActivePanel.register("id", options); + * Prado.ActivePanel.update("id", "hello"); + * + */ +Prado.ActivePanel = +{ + callbacks : {}, + + register : function(id, options) + { + Prado.ActivePanel.callbacks[id] = options; + }, + + update : function(id, param) + { + var request = new Prado.ActivePanel.Request(id, + Prado.ActivePanel.callbacks[id]); + request.callback(param); + } +} + +/** + * Client-script for TActivePanel. Uses Callback to notify the server + * for updates, if update option is set, the innerHTML of the update ID + * is set to the returned output. + */ +Prado.ActivePanel.Request = Class.create(); +Prado.ActivePanel.Request.prototype = +{ + initialize : function(element, options) + { + this.element = element; + this.setOptions(options); + }, + + /** + * Set some options. + */ + setOptions : function(options) + { + this.options = + { + onSuccess : this.onSuccess.bind(this) + } + Object.extend(this.options, options || {}); + }, + + /** + * Make the callback request + */ + callback : function(param) + { + this.options.params = [param]; + new Prado.AJAX.Callback(this.element, this.options); + }, + + /** + * Callback onSuccess handler, update the element innerHTML if necessary + */ + onSuccess : function(result, output) + { + if(this.options.update) + { + if (!this.options.evalScripts) + output = output.stripScripts(); + Element.update(this.options.update, output); + } + } +} + +/** + * Drop container to accept draggable component drops. + */ +Prado.DropContainer = Class.create(); +Prado.DropContainer.prototype = Object.extend(new Prado.ActivePanel.Request(), +{ + initialize : function(element, options) + { + this.element = element; + this.setOptions(options); + Object.extend(this.options, + { + onDrop : this.onDrop.bind(this), + evalScripts : true, + onSuccess : options.onSuccess || this.onSuccess.bind(this) + }); + Droppables.add(element, this.options); + }, + + onDrop : function(draggable, droppable) + { + this.callback(draggable.id) + } +}); + +Prado.ActiveImageButton = Class.create(); +Prado.ActiveImageButton.prototype = +{ + initialize : function(element, options) + { + this.element = $(element); + this.options = options; + Event.observe(this.element, "click", this.click.bind(this)); + }, + + click : function(e) + { + var el = $('{$this->ClientID}'); + var imagePos = Position.cumulativeOffset(this.element); + var clickedPos = [e.clientX, e.clientY]; + var param = (clickedPos[0]-imagePos[0]+1)+","+(clickedPos[1]-imagePos[1]+1); + Prado.Callback(this.element, param, null, this.options); + Event.stop(e); + } +} + + + + -- cgit v1.2.3