From 9250000af69b5c0ddc73537ec40573df68283dcc Mon Sep 17 00:00:00 2001
From: n-peugnet <n.peugnet@free.fr>
Date: Mon, 21 Oct 2019 19:44:52 +0200
Subject: move js sources to /src/ & remove old worker stuff

---
 src/edit.js | 92 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 92 insertions(+)
 create mode 100644 src/edit.js

(limited to 'src/edit.js')

diff --git a/src/edit.js b/src/edit.js
new file mode 100644
index 0000000..ac2fe58
--- /dev/null
+++ b/src/edit.js
@@ -0,0 +1,92 @@
+import CodeMirror from "codemirror";
+import "codemirror/lib/codemirror.css";
+import "codemirror/mode/markdown/markdown.js";
+
+let form;
+let unsavedChanges = false;
+
+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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