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import CodeMirror from "codemirror";
import "codemirror/lib/codemirror.css";
import "codemirror/mode/markdown/markdown.js";
let form;
let unsavedChanges = false;
const pageurl = basepath + pageid;
let myCodeMirror = CodeMirror.fromTextArea(document.getElementById('main'), {
mode: 'markdown',
lineNumbers: true,
});
window.onload = () => {
form = document.getElementById('update');
let inputs = form.elements;
for (let i = 0; i < inputs.length; i++) {
inputs[i].oninput = changeHandler;
}
form.addEventListener("submit", function (event) {
event.preventDefault();
submitHandler(this);
});
window.onkeydown = keyboardHandler;
window.onbeforeunload = confirmExit;
};
/**
* Manage a keyboardEvent
* @param {KeyboardEvent} e
*/
function keyboardHandler(e) {
if (e.composed) {
if (e.ctrlKey) {
switch (e.key) {
// ctrl + s
case 's':
submitHandler(form);
break;
// ctrl + d
case 'd':
url = document.getElementById('update').getAttribute('href');
window.open(url);
break;
default:
return true;
}
e.preventDefault();
return false;
}
}
}
/**
* Manage change event
* @param {InputEvent} e
*/
function changeHandler(e) {
if(e.target.classList.contains("toggle")||e.target.classList.contains("checkboxtab")) {
return;
}
unsavedChanges = true;
}
/**
* Manage submit event
* @param {HTMLFormElement} form
*/
function submitHandler(form) {
var xhr = new XMLHttpRequest();
var fd = new FormData(form);
xhr.addEventListener("load", function(event) {
unsavedChanges = false;
alert("updated");
});
xhr.addEventListener("error", function(event) {
alert('Error while trying to update.');
});
xhr.open(form.method, form.action);
xhr.send(fd);
}
/**
* Manage a beforeUnloadEvent
* @param {BeforeUnloadEvent} e
*/
function confirmExit(e) {
if (unsavedChanges) {
return 'You have unsaved changes, do you really want to leave this page?';
}
}
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