+/**
+ * Nucleus: PHP/MySQL Weblog CMS (http://nucleuscms.org/)
+ * Copyright (C) 2002-2007 The Nucleus Group
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ * (see nucleus/documentation/index.html#license for more info)
+ *
+ *
+ * This page contains xmlHTTPRequest functions for:
+ * - AutoSaveDraft
+ *
+ *
+ * Usage:
+ * - Add in the page before the form open tag:
+ * <script type="text/javascript" src="javascript/xmlhttprequest.js"></script>
+ * - Add in the page behind the form close tag:
+ * var xmlhttprequest = new Array();
+ * xmlhttprequest[0] = createHTTPHandler(); // AutoDraft handler
+ * xmlhttprequest[1] = createHTTPHandler(); // UpdateTicket handler
+ * var seconds = now(); // Last AutoDraft time
+ * var checks = 0; // Number of checks since last AutoDraft
+ * var addform = document.getElementById('addform'); // The form id
+ * var goal = document.getElementById('lastsaved'); // The html div id where 'Last saved: date time' must come
+ * var goalurl = 'action.php'; // The PHP file where the content must be posted to (action.php)
+ * var lastsavedtext = 'Last saved'; // The language variable for 'Last saved'
+ * var formtype = 'add'; // Add or edit form
+ * - Add to the form tag:
+ * id="addform"
+ * - Add to the textarea's and text fields:
+ * onkeyup="doMonitor();"
+ * - Add tot the selectboxes and radio buttons
+ * onchange="doMonitor();"
+ * - Add to the form:
+ * <input type="hidden" name="draftid" value="0" />
+ * - Optionally a autosave now button can be add:
+ * <input type="button" name="autosavenow" value="AutoSave now" onclick="autoSaveDraft();" />
+ *
+ *
+ * $Id: xmlhttprequest.js,v 1.1 2007-02-28 21:34:18 kimitake Exp $
+ * $NucleusJP$
+ */
+
+/**
+ * Creates the xmlHTTPRequest handler
+ */
+function createHTTPHandler() {
+ var httphandler = false;
+ /*@cc_on @*/
+ /*@if (@_jscript_version >= 5)
+ // JScript gives us Conditional compilation, we can cope with old IE versions.
+ // and security blocked creation of the objects.
+ try {
+ httphandler = new ActiveXObject("Msxml2.XMLHTTP");
+ }
+ catch (e) {
+ try {
+ httphandler = new ActiveXObject("Microsoft.XMLHTTP");
+ }
+ catch (E) {
+ httphandler = false;
+ }
+ }
+ @end @*/
+ if (!httphandler && typeof XMLHttpRequest != 'undefined') {
+ httphandler = new XMLHttpRequest();
+ }
+ return httphandler;
+}
+
+/**
+ * Auto saves as draft
+ */
+function autoSaveDraft() {
+ checks = 0;
+ seconds = now();
+
+ var title = encodeURI(addform.title.value);
+ var body = encodeURI(addform.body.value);
+ var catid = addform.catid.options[addform.catid.selectedIndex].value;
+ var more = encodeURI(addform.more.value);
+ var closed = 0;
+ if (addform.closed[0].checked) {
+ closed = addform.closed[0].value;
+ }
+ else if (addform.closed[1].checked) {
+ closed = addform.closed[1].value;
+ }
+ var ticket = addform.ticket.value;
+
+ var querystring = 'action=autodraft';
+ querystring += '&title=' + title;
+ querystring += '&body=' + body;
+ querystring += '&catid=' + catid;
+ querystring += '&more=' + more;
+ querystring += '&closed=' + closed;
+ querystring += '&ticket=' + ticket;
+ if (formtype == 'edit') {
+ querystring += '&itemid=' + addform.itemid.value;
+ querystring += '&type=edit';
+ }
+ else {
+ querystring += '&blogid=' + addform.blogid.value;
+ querystring += '&type=add';
+ }
+ if (addform.draftid.value > 0) {
+ querystring += '&draftid=' + addform.draftid.value;
+ }
+
+ xmlhttprequest[0].open('POST', goalurl, true);
+ xmlhttprequest[0].onreadystatechange = checkMonitor;
+ xmlhttprequest[0].setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
+ xmlhttprequest[0].send(querystring);
+
+ var querystring = 'action=updateticket&ticket=' + ticket;
+
+ xmlhttprequest[1].open('POST', goalurl, true);
+ xmlhttprequest[1].onreadystatechange = updateTicket;
+ xmlhttprequest[1].setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
+ xmlhttprequest[1].send(querystring);
+}
+
+/**
+ * Monitors the edits
+ */
+function doMonitor() {
+ if (checks * (now() - seconds) > 120 * 1000 * 50) {
+ autoSaveDraft();
+ }
+ else {
+ checks++;
+ }
+}
+
+/**
+ * Checks the process of the saving
+ */
+function checkMonitor() {
+ if (xmlhttprequest[0].readyState == 4) {
+ if (xmlhttprequest[0].responseText) {
+ if (xmlhttprequest[0].responseText.substr(0, 4) == 'err:') {
+ goal.innerHTML = xmlhttprequest[0].responseText.substr(4) + ' (' + formattedDate() + ')';
+ }
+ else {
+ addform.draftid.value = xmlhttprequest[0].responseText;
+ goal.innerHTML = lastsavedtext + ' ' + formattedDate();
+ }
+ }
+ }
+}
+
+/**
+ * Checks the process of the ticket updating
+ */
+function updateTicket() {
+ if (xmlhttprequest[1].readyState == 4) {
+ if (xmlhttprequest[1].responseText) {
+ if (xmlhttprequest[1].responseText.substr(0, 4) == 'err:') {
+ goal.innerHTML = xmlhttprequest[1].responseText.substr(4) + ' (' + formattedDate() + ')';
+ }
+ else {
+ addform.ticket.value = xmlhttprequest[1].responseText;
+ }
+ }
+ }
+}
+
+/**
+ * Gets now in milliseconds
+ */
+function now() {
+ var now = new Date();
+ return now.getTime();
+}
+
+/**
+ * Gets now in the local dateformat
+ */
+function formattedDate() {
+ var now = new Date();
+ return now.toLocaleDateString() + ' ' + now.toLocaleTimeString();
+}
\ No newline at end of file
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