fix setup of new document, closes #966

src/public/app/dialogs/note_source.js

@@ -0,0 +1,40 @@
+import appContext from "../services/app_context.js";
+import utils from "../services/utils.js";
+
+const $dialog = $("#note-source-dialog");
+const $noteSource = $("#note-source");
+
+export async function showDialog() {
+    utils.openDialog($dialog);
+
+    const noteCompletement = await appContext.tabManager.getActiveTabContext().getNoteComplement();
+
+    $noteSource.text(formatHtml(noteCompletement.content));
+}
+
+function formatHtml(str) {
+    const div = document.createElement('div');
+    div.innerHTML = str.trim();
+
+    return formatNode(div, 0).innerHTML.trim();
+}
+
+function formatNode(node, level) {
+    const indentBefore = new Array(level++ + 1).join('  ');
+    const indentAfter  = new Array(level - 1).join('  ');
+    let textNode;
+
+    for (let i = 0; i < node.children.length; i++) {
+        textNode = document.createTextNode('\n' + indentBefore);
+        node.insertBefore(textNode, node.children[i]);
+
+        formatNode(node.children[i], level);
+
+        if (node.lastElementChild === node.children[i]) {
+            textNode = document.createTextNode('\n' + indentAfter);
+            node.appendChild(textNode);
+        }
+    }
+
+    return node;
+}