tree utils as a module

public/javascripts/tree_utils.js

@@ -1,61 +1,78 @@
 "use strict";
 
-const treeEl = $("#tree");
+const treeUtils = (function() {
+    const treeEl = $("#tree");
 
-function getParentKey(node) {
-    return (node.getParent() === null || node.getParent().key === "root_1") ? "root" : node.getParent().key;
-}
-
-function getParentEncryption(node) {
-    return node.getParent() === null ? 0 : node.getParent().data.encryption;
-}
-
-function getNodeByKey(noteId) {
-    return treeEl.fancytree('getNodeByKey', noteId);
-}
-
-function getNoteTitle(noteId) {
-    const note = getNodeByKey(noteId);
-    if (!note) {
-        return;
+    function getParentKey(node) {
+        return (node.getParent() === null || node.getParent().key === "root_1") ? "root" : node.getParent().key;
     }
 
-    let noteTitle = note.title;
-
-    if (noteTitle.endsWith(" (clone)")) {
-        noteTitle = noteTitle.substr(0, noteTitle.length - 8);
+    function getParentEncryption(node) {
+        return node.getParent() === null ? 0 : node.getParent().data.encryption;
     }
 
-    return noteTitle;
-}
-
-function getFullName(noteId) {
-    let note = getNodeByKey(noteId);
-
-    if (note === null) {
-        return "[unknown]";
+    function getNodeByKey(noteId) {
+        return treeEl.fancytree('getNodeByKey', noteId);
     }
 
-    // why?
-    if (note.data.is_clone) {
-        return null;
+    function activateNode(noteId) {
+        const node = treeUtils.getNodeByKey(noteId);
+
+        node.setActive();
     }
 
-    const path = [];
-
-    while (note) {
-        if (note.data.encryption > 0 && !encryption.isEncryptionAvailable()) {
-            path.push("[encrypted]");
-        }
-        else {
-            path.push(note.title);
+    function getNoteTitle(noteId) {
+        const note = treeUtils.getNodeByKey(noteId);
+        if (!note) {
+            return;
         }
 
-        note = note.getParent();
+        let noteTitle = note.title;
+
+        if (noteTitle.endsWith(" (clone)")) {
+            noteTitle = noteTitle.substr(0, noteTitle.length - 8);
+        }
+
+        return noteTitle;
     }
 
-    // remove "root" element
-    path.pop();
+    function getFullName(noteId) {
+        let note = treeUtils.getNodeByKey(noteId);
 
-    return path.reverse().join(" > ");
-}
+        if (note === null) {
+            return "[unknown]";
+        }
+
+        // why?
+        if (note.data.is_clone) {
+            return null;
+        }
+
+        const path = [];
+
+        while (note) {
+            if (note.data.encryption > 0 && !encryption.isEncryptionAvailable()) {
+                path.push("[encrypted]");
+            }
+            else {
+                path.push(note.title);
+            }
+
+            note = note.getParent();
+        }
+
+        // remove "root" element
+        path.pop();
+
+        return path.reverse().join(" > ");
+    }
+
+    return {
+        getParentKey,
+        getParentEncryption,
+        getNodeByKey,
+        activateNode,
+        getNoteTitle,
+        getFullName
+    };
+})();