docs: add JS-Doc to rest of functions

src/bg/action.ts

@@ -5,9 +5,15 @@ import { matcher, runtimeMapUrl } from './bg';
 const replacedUrlMatcher = new RegExp(`^${runtimeMapUrl}\?`);
 
 /**
+ * Async function to react to clicks on the browser action icon.
+ * Takes the current tab, takes its hostname and inverts the state of the hostname.
  *
+ * Requests all frames from the current tab, filters them for extension Leaflet frames and Maps frames.
+ * Reloads the full tab on extension Leaflet frame match.
+ * If no extension Leaflet frames were found it just reloads the Maps frames
+ * @param tab Currently active tab
  */
-browserAction.onClicked.addListener(async (tab: Tabs.Tab) => {
+async function actionClick(tab: Tabs.Tab): Promise<void> {
     if (!tab.url || !tab.id) return;
 
     let hostname = getHostname(tab.url);
@@ -29,4 +35,6 @@ browserAction.onClicked.addListener(async (tab: Tabs.Tab) => {
             code: 'document.location.reload();',
         });
     });
-});
+}
+
+browserAction.onClicked.addListener(actionClick);

src/bg/utils/actionIcon.ts

@@ -2,10 +2,10 @@ import { browserAction, tabs } from 'webextension-polyfill';
 import { disabledHosts, getHostname } from './storage';
 
 /**
- *
- * @param hostname
+ * Updates the action icon
+ * @param hostname Hostname
  */
-export function updateIcon(hostname: string) {
+export function updateIcon(hostname: string): void {
     let disabled = disabledHosts.includes(hostname);
 
     browserAction.setIcon({
@@ -22,9 +22,9 @@ export function updateIcon(hostname: string) {
 }
 
 /**
- *
+ * Async function to update the icon of the currently active tab. Uses `updateIcon` internally
  */
-export async function updateActiveTabIcon() {
+export async function updateActiveTabIcon(): Promise<void> {
     let browserTabs = await tabs.query({ active: true, currentWindow: true });
 
     let tab = browserTabs[0];

src/bg/utils/storage.ts

@@ -3,7 +3,7 @@ import { updateIcon } from './actionIcon';
 
 export const KEY_DISABLED_HOSTS = 'disabled_hosts';
 
-//
+// Listens to changes on the storage. Updates disabled hosts list, if stored list changes
 export let disabledHosts: string[] = await getDisabledHosts();
 storage.local.onChanged.addListener((changes) => {
     if (KEY_DISABLED_HOSTS in changes) {
@@ -12,16 +12,17 @@ storage.local.onChanged.addListener((changes) => {
 });
 
 /**
- *
- * @returns
+ * Async function to get the list of disabled hostnames
+ * @returns List of disabled hostnames
  */
 async function getDisabledHosts(): Promise<string[]> {
     return (await storage.local.get(KEY_DISABLED_HOSTS))[KEY_DISABLED_HOSTS] ?? [];
 }
 
 /**
- *
- * @param hostname
+ * Async function to invert the state of a hostname.
+ * Adds new entry if not disabled, removes entry, if already disabled
+ * @param hostname Hostname to invert the state of
  */
 export async function invertHostState(hostname: string): Promise<void> {
     if (disabledHosts.includes(hostname)) {
@@ -38,9 +39,9 @@ export async function invertHostState(hostname: string): Promise<void> {
 }
 
 /**
- *
- * @param url
- * @returns
+ * Retrieves the hostname from a URL
+ * @param url Full URL string
+ * @returns Hostname string
  */
 export function getHostname(url: string): string {
     url = url.replace(/^\w+:\/\//, '');

src/map/utils/read.ts

@@ -25,9 +25,9 @@ export type MapData = {
 };
 
 /**
- *
- * @param param
- * @returns
+ * Decodes the `pb` parameter with the help of `parsePB` and `readQ`
+ * @param param Content of the `pb` parameter as a string
+ * @returns MapData with area, zoom, tile type and markers
  */
 export async function readPB(param: string): Promise<MapData> {
     let mapData: MapData = {

src/map/utils/zoom.ts

@@ -1,12 +1,12 @@
-// https://groups.google.com/g/google-earth-browser-plugin/c/eSL9GlAkWBk/m/T4mdToJz_FgJ
-
 const factor: number = 35200000;
 const precision: number = 10;
 
 /**
+ * Converts *altitude over the map* to *zoom level of the map*
  *
- * @param alt
- * @returns
+ * Reference: https://groups.google.com/g/google-earth-browser-plugin/c/eSL9GlAkWBk/m/T4mdToJz_FgJ
+ * @param alt Altitude as number
+ * @returns Zoom level between 0 and 19
  */
 export function getMapZoom(alt: number): number {
     let zoom = Math.log2(factor / alt) * 1.225;

src/options/options.ts

@@ -9,18 +9,18 @@ import {
 const table = document.querySelector('.table')!;
 
 /**
- *
+ * (Re)Builds the list of diasabled hostnames
  */
-function buildEntries() {
+function buildEntries(): void {
     table.innerHTML = '';
     disabledHosts.forEach(createEntry);
 }
 
 /**
- *
- * @returns
+ * Async function to add a hostname (from the form / URL Search Params) to the displayed list and the storage list of disabled hosts
+ * If the entry is already present in the stored hosts, no entry is added to the display list
  */
-async function addEntry() {
+async function addEntry(): Promise<void> {
     const search = new URLSearchParams(document.location.search);
     let hostname = search.get('hostname');
     if (hostname === null) return;
@@ -33,10 +33,10 @@ async function addEntry() {
 }
 
 /**
- *
- * @param hostname
+ * Creates a new entry for the displayed list of disabled hostnames and appends it to the view
+ * @param hostname Hostname to add to the list
  */
-function createEntry(hostname: string) {
+function createEntry(hostname: string): void {
     const div = document.createElement('div');
 
     let span = document.createElement('span');
@@ -50,11 +50,11 @@ function createEntry(hostname: string) {
 }
 
 /**
- *
- * @param click
- * @returns
+ * Async funtion to remove an entry at click of its button.
+ * Takes the index in the table to remove it from the list of stored hostnames
+ * @param click Button click
  */
-async function removeEntry(click: MouseEvent) {
+async function removeEntry(click: MouseEvent): Promise<void> {
     let target: EventTarget | null = click.target;
     if (target === null) return;
 
@@ -65,11 +65,11 @@ async function removeEntry(click: MouseEvent) {
 }
 
 /**
- *
- * @param button
- * @returns
+ * Gets the index of a list entry using its clicked button
+ * @param button Button that was clicked to remove an entry
+ * @returns Index of the list entry
  */
-function getIndex(button: HTMLButtonElement) {
+function getIndex(button: HTMLButtonElement): number {
     let div: HTMLDivElement = button.parentElement as HTMLDivElement;
     if (div === null) return -1;