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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Edu Sharing Usage Example</title>
<style>
body > div {
padding: 20px 10px;
}
pre {
border: 1px solid #eee;
padding: 10px;
margin: 10px;
}
</style>
<script>
let ticket;
let baseUrl = null;
let esWindow = null;
function openEduSharing() {
esWindow = window.open(
baseUrl + '/components/search?ticket=' + encodeURIComponent(ticket) +
'&reurl=IFRAME'
);
}
window.addEventListener('message', receiveMessage, false);
async function receiveMessage(event){
if(event.data.event === 'APPLY_NODE'){ // Event Name hier festlegen
esWindow.close();
console.log(event.data.data);
usage = await createUsage(event.data.data.nodeId);
// in a real application, the usage is stored in your backend system
localStorage.setItem('usage', JSON.stringify(usage));
await renderUsage();
}
}
async function renderUsage() {
if(localStorage.getItem('usage')) {
const usage = JSON.parse(localStorage.getItem('usage'));
document.querySelector('#usage').style.display = null;
document.querySelector('#delete-usage').style.display = null;
document.querySelector('#usage').innerHTML = JSON.stringify(usage, null, 4);
usage.action = 'GET_NODE';
const render = await fetchAPI(usage)
document.querySelector('#render').innerHTML = render.detailsSnippet;
}
}
async function createUsage(nodeId) {
return await fetchAPI({
action: 'CREATE_USAGE',
ticket,
nodeId,
containerId: 'my_sample_page_1',
resourceId: Math.random()
});
}
async function deleteUsage(nodeId) {
const usage = JSON.parse(localStorage.getItem('usage'));
await fetchAPI({
action: 'DELETE_USAGE',
nodeId: usage.nodeId,
usageId: usage.usageId
});
localStorage.removeItem('usage');
document.querySelector('#render').style.display = 'none';
document.querySelector('#usage').style.display = 'none';
document.querySelector('#delete-usage').style.display = 'none';
}
async function fetchAPI(data) {
return new Promise((resolve, reject) => {
var xhr = new XMLHttpRequest();
xhr.open("POST", "example-api.php", true);
xhr.onload = () => {
if (xhr.readyState === 4) {
if (xhr.status === 200) {
resolve(JSON.parse(xhr.response));
} else {
alert(xhr.statusText);
reject(xhr.statusText);
}
}
};
xhr.onerror = function (e) {
alert(xhr.statusText);
};
xhr.send(JSON.stringify(data));
});
}
async function getTicket() {
ticket = await fetchAPI({action: 'TICKET'});
document.querySelector('#ticket').innerText = ticket;
document.querySelector('#edu-select').style.display = null;
}
window.addEventListener('load', async () => {
baseUrl = await fetchAPI({action: 'BASE_URL'});
await renderUsage();
await getTicket();
});
</script>
</head>
<body>
<div>
<button onclick="getTicket()">Re-Fetch ticket</button>
<span id="ticket">No ticket</span>
</div>
<div id="edu-select" style="display:none;">
<button onclick="openEduSharing()">Open edu-sharing & select node</button>
</div>
<pre id="usage" style="display: none"></pre>
<div id="delete-usage" style="display: none">
<button onclick="deleteUsage()">Delete current Usage</button>
</div>
<div id="render"></div>
</body>
</html>
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