/* Journalize It Live Saver Built on top of prototype (http://prototype.conio.net/) and JSON (http://www.json.org/). Thanks. (c) 2006 Jan Lehnardt Released under a BSD-style license. See the files footer for details; basically it's take it and do what you like, but give proper credit. */ /* TODO: Enclose cookie controller into LiveSaver Object Register and restore entire forms. Prototype to the rescue! */ /* Cookie controller class to abstract away the handling of the LiveSaver cookie */ function LiveSaverCookieController() { this.name = 'WP_LiveSaver'; this.expires = new Date('January 17, 2038'); // do not expire until at least the 32bit UNIX epoch ends this.expires = this.expires.toGMTString(); /* Constructs the cookie string and sets it to document.cookie param data data string return void */ this.save = function(data) { var value = this.name + '=' + escape(data) + '; '; var expires = 'expires=' + this.expires + ';'; document.cookie = value + expires; } /* Return the value from the cookie return string */ this.load = function() { return this.getValue(this.name); } //Get cookie routine by Shelley Powers this.getValue = function(Name) { var search = Name + "=" var returnvalue = ""; if(document.cookie.length > 0) { offset = document.cookie.indexOf(search) // if cookie exists if(offset != -1) { offset += search.length // set index of beginning of value end = document.cookie.indexOf(";", offset); // set index of end of cookie value if(end == -1) end = document.cookie.length; returnvalue = unescape(document.cookie.substring(offset, end)) } } return returnvalue; } } var LiveSaver = new Object(); Object.extend(LiveSaver, { setId: function(id) { this.id = id; }, setSaveThresold: function(saveThresold) { this.saveThresold = saveThresold; }, init: function(id, data) { if(id) { this.id = id; } else if(this.wikiMedia && (this.wikiMedia == true)) { var wikiPage = window.location.href.match(/title=[^&]+&/); if(wikiPage) { this.id = window.location.hostname + window.location.pathname + wikiPage; } else { return false; } } else { this.id = window.location.href; } this.counter = {}; this.saveThresold = 0; this.data = {}; if(data) { this.data = data; // data!! } this.cookieController = new LiveSaverCookieController(); // TODO: optmize. ask cookiecontroller if it has data. don't json everytime var tmpData = JSON.parse(this.cookieController.load()); if(tmpData) { this.data = tmpData; /* for(var fieldIdx in this.counter) { (fieldIdx); var count = this.counter[fieldIdx]; if(this.data[this.id] && this.data[this.id][fieldIdx]) { var field = this.data[this.id][fieldIdx]; if(field && field.length > 0) { this.counter[fieldIdx] = field.length } } }*/ } if(!this.data[this.id]) { this.data[this.id] = {}; } }, enableWikiMedia: function() { this.wikiMedia = true; }, // yo, I am static, no this available /* Dear Developer, if you're renaming the LiveSaver Object variable, you have to adjust the update function, too. Jan -- */ update: function(element, value) { element = element.id; LiveSaver.counter[element]++; if(LiveSaver.counter[element] >= LiveSaver.saveThresold) { LiveSaver.counter[element] = 0; LiveSaver.add(element, value); LiveSaver.save(); } /* LiveSaverCookieController.dump();*/ }, register: function(element) { this.counter[element] = -1; if(!this.data[this.id][element]) { this.data[this.id][element] = ''; } if(this.has(element)) { //get saved data var value = this.get(element); element = $(element); if(element) { element.value = value; } } else { if($(element).value.length > 0) { //get preset data this.add(element, $(element).value); this.save(); } } new Form.Element.InputEventObserver(element, this.update); }, save: function() { var json = JSON.stringify(this.getAll()); this.cookieController.save(json); }, reset: function(element) { this.data.reset(element); this.save(); }, dump: function() { alert('dump:' + (this.cookieController.load())); }, add: function(key, val) { this.data[this.id][key] = val; }, get: function(key, doc) { if(this.has(key)) { return this.data[this.id][key]; } else { return false;; } }, has: function(key) { if(this.data[this.id] && this.data[this.id][key] && (this.data[this.id][key].length > 0)) { return true; } else { return false; } }, getAll: function() { return this.data; }, reset: function(key) { if(this.data[this.id][key]) { this.data[this.id][key] = null; this.save(); } }, hasData: function() { if(this.data[this.id]) { for(var fieldIdx in this.data[this.id]) { data = this.data[this.id][fieldIdx]; if(data && data.length > 0) { return true; } } } return false; } }); /* * Copyright (c) 2006, Jan Lehnardt * All rights reserved. * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * Neither the name of LiveSaver nor the names of its contributors may * be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND ANY * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL THE REGENTS AND CONTRIBUTORS BE LIABLE FOR ANY * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */