1 files changed, 155 insertions, 0 deletions
diff --git a/src/edit.js b/src/edit.js
new file mode 100644
index 0000000..6843fff
--- /dev/null
+++ b/src/edit.js
@@ -0,0 +1,155 @@
+import CodeMirror from "codemirror";
+import "codemirror/lib/codemirror.css";
+import "codemirror/mode/markdown/markdown";
+import "codemirror/mode/css/css"
+import "codemirror/mode/htmlmixed/htmlmixed"
+import "codemirror/mode/javascript/javascript"
+
+let form;
+let editors = [];
+let unsavedChanges = false;
+const inputEvent = new InputEvent('input');
+
+window.onload = () => {
+    form = document.getElementById('update');
+    let inputs = form.elements;
+    for (const input of inputs) {
+        input.oninput = changeHandler;
+    }
+
+    form.addEventListener("submit", function (event) {
+        event.preventDefault();
+        submitHandler(this);
+    });
+
+    delete CodeMirror.keyMap['default']["Ctrl-D"];
+
+    editors = [
+        CodeMirror.fromTextArea(document.getElementById('editmain'), {
+            mode: 'markdown',
+            lineNumbers: true,
+        }),
+        CodeMirror.fromTextArea(document.getElementById('editcss'), {
+            mode: 'css',
+            lineNumbers: true,
+        }),
+        CodeMirror.fromTextArea(document.getElementById('editheader'), {
+            mode: 'markdown',
+            lineNumbers: true,
+        }),
+        CodeMirror.fromTextArea(document.getElementById('editnav'), {
+            mode: 'markdown',
+            lineNumbers: true,
+        }),
+        CodeMirror.fromTextArea(document.getElementById('editaside'), {
+            mode: 'markdown',
+            lineNumbers: true,
+        }),
+        CodeMirror.fromTextArea(document.getElementById('editfooter'), {
+            mode: 'markdown',
+            lineNumbers: true,
+        }),
+        CodeMirror.fromTextArea(document.getElementById('editbody'), {
+            mode: 'htmlmixed',
+            lineNumbers: true,
+        }),
+        CodeMirror.fromTextArea(document.getElementById('editjavascript'), {
+            mode: 'javascript',
+            lineNumbers: true,
+        }),
+    ];
+    for (const editor of editors) {
+        editor.on('change', cmChangeHandler);
+    }
+
+    const fontSizeInput = document.getElementById('editfontsize');
+    fontSizeInput.addEventListener('change', fontSizeChangeHandler)
+    fontSizeInput.dispatchEvent(new Event('change'));
+
+    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':
+                    const 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 CodeMirror editor change event
+ * @param {CodeMirror.EditorFromTextArea} cm the CodeMirror instance
+ */
+function cmChangeHandler(cm){
+    let textArea = cm.getTextArea();
+    textArea.value = cm.getValue();
+    textArea.dispatchEvent(inputEvent);
+}
+
+function fontSizeChangeHandler(e) {
+    for (const editor of editors) {
+        const element = editor.getWrapperElement();
+        element.style.fontSize = `${e.target.value}px`;
+        editor.refresh();
+    }
+}
+
+/**
+ * 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?';
+    }
+}