1 files changed, 28 insertions, 6 deletions
diff --git a/ext/js/pages/settings/status-footer.js b/ext/js/pages/settings/status-footer.js
index 6c64794f..a8f1a8c4 100644
--- a/ext/js/pages/settings/status-footer.js
+++ b/ext/js/pages/settings/status-footer.js
@@ -19,34 +19,52 @@
 import {PanelElement} from '../../dom/panel-element.js';
 
 export class StatusFooter extends PanelElement {
+    /**
+     * @param {HTMLElement} node
+     */
     constructor(node) {
         super({
             node,
             closingAnimationDuration: 375 // Milliseconds; includes buffer
         });
-        this._body = node.querySelector('.status-footer');
+        /** @type {HTMLElement} */
+        this._body = /** @type {HTMLElement} */ (node.querySelector('.status-footer'));
     }
 
+    /** */
     prepare() {
-        this.on('closeCompleted', this._onCloseCompleted.bind(this), false);
-        this._body.querySelector('.status-footer-header-close').addEventListener('click', this._onCloseClick.bind(this), false);
+        const closeButton = /** @type {HTMLElement} */ (this._body.querySelector('.status-footer-header-close'));
+        this.on('closeCompleted', this._onCloseCompleted.bind(this));
+        closeButton.addEventListener('click', this._onCloseClick.bind(this), false);
     }
 
+    /**
+     * @param {string} selector
+     * @returns {?HTMLElement}
+     */
     getTaskContainer(selector) {
         return this._body.querySelector(selector);
     }
 
+    /**
+     * @param {string} selector
+     * @returns {boolean}
+     */
     isTaskActive(selector) {
         const target = this.getTaskContainer(selector);
-        return (target !== null && target.dataset.active);
+        return (target !== null && !!target.dataset.active);
     }
 
+    /**
+     * @param {string} selector
+     * @param {boolean} active
+     */
     setTaskActive(selector, active) {
         const target = this.getTaskContainer(selector);
         if (target === null) { return; }
 
         const activeElements = new Set();
-        for (const element of this._body.querySelectorAll('.status-footer-item')) {
+        for (const element of /** @type {NodeListOf<HTMLElement>} */ (this._body.querySelectorAll('.status-footer-item'))) {
             if (element.dataset.active) {
                 activeElements.add(element);
             }
@@ -68,13 +86,17 @@ export class StatusFooter extends PanelElement {
 
     // Private
 
+    /**
+     * @param {MouseEvent} e
+     */
     _onCloseClick(e) {
         e.preventDefault();
         this.setVisible(false);
     }
 
+    /** */
     _onCloseCompleted() {
-        for (const element of this._body.querySelectorAll('.status-footer-item')) {
+        for (const element of /** @type {NodeListOf<HTMLElement>} */ (this._body.querySelectorAll('.status-footer-item'))) {
             if (!element.dataset.active) {
                 element.hidden = true;
             }