Current File : /opt/bitnami/apps/moodle/htdocs.backup/htdocs/mod/scorm/request.js
// This file is part of Moodle - http://moodle.org/
//
// Moodle 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 3 of the License, or
// (at your option) any later version.
//
// Moodle is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
function NewHttpReq() {
var httpReq = false;
if (typeof XMLHttpRequest != 'undefined') {
httpReq = new XMLHttpRequest();
} else {
try {
httpReq = new ActiveXObject("Msxml2.XMLHTTP.4.0");
} catch (e) {
try {
httpReq = new ActiveXObject("Msxml2.XMLHTTP");
} catch (ee) {
try {
httpReq = new ActiveXObject("Microsoft.XMLHTTP");
} catch (eee) {
httpReq = false;
}
}
}
}
return httpReq;
}
function DoRequest(httpReq,url,param) {
// If we are unloading, and we can use sendBeacon then do that, Chrome does not permit synchronous XHR requests on unload.
if (window.mod_scorm_is_window_closing && navigator && navigator.sendBeacon && FormData) {
// Ok, old API alert, the param is a URI encoded string. We need to split it and convert it to a supported format.
// I've chosen FormData and FormData.append as they are compatible with our supported browsers:
// - https://developer.mozilla.org/en-US/docs/Web/API/FormData/FormData
// - https://developer.mozilla.org/en-US/docs/Web/API/FormData/append
var vars = param.split('&'),
i = 0,
pair,
key,
value,
formData = new FormData();
for (i = 0; i < vars.length; i++) {
pair = vars[i].split('=');
key = decodeURIComponent(pair[0]);
value = decodeURIComponent(pair[1]);
formData.append(key, value);
}
// We'll also inform it that we are unloading, potentially useful in the future.
formData.append('unloading', '1');
// The results is true or false, we don't get the response from the server. Make it look like it was a success.
navigator.sendBeacon(url, formData);
// This is what a success looks like when it comes back from the server.
return "true\n0";
}
// httpReq.open (Method("get","post"), URL(string), Asyncronous(true,false))
//popupwin(url+"\n"+param);
httpReq.open("POST", url,false);
httpReq.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
try {
httpReq.send(param);
} catch (e) {
return false;
}
if (httpReq.status == 200) {
//popupwin(url+"\n"+param+"\n"+httpReq.responseText);
return httpReq.responseText;
} else {
return httpReq.status;
}
}
function popupwin(content) {
var op = window.open();
op.document.open('text/plain');
op.document.write(content);
op.document.close();
}
/**
* We wire up a small marker for the unload events triggered when the user is navigating away or closing the tab.
* This is done because Chrome does not allow synchronous XHR requests on the following unload events:
* - beforeunload
* - unload
* - pagehide
* - visibilitychange
*/
(function() {
// Set up a global var. Sorry about this, old code ... old ways.
window.mod_scorm_is_window_closing = false;
var toggle = function() {
window.mod_scorm_is_window_closing = true;
};
// Listen to the four events known to represent an unload operation.
window.addEventListener('beforeunload', toggle);
window.addEventListener('unload', toggle);
window.addEventListener('pagehide', toggle);
window.addEventListener('visibilitychange', toggle);
})();
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