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https://github.com/bulwarkmail/native.git
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Linus Rath
25c088383f
Ports the webmail's app-icon badge (`useAppBadge`): the icon shows the unread count of the active account's own inbox, and a new "Unread count on app icon" toggle (on by default, exported as the webmail's `faviconUnreadBadge`) turns it off. Signing out of the last account clears it. This is iOS only. On Android expo-notifications badges through ShortcutBadger, which few launchers honour, and implements a count of 0 as `NotificationManager.cancelAll()`, so clearing the badge would also dismiss other accounts' mail notifications and calendar reminders. Android launchers already badge the icon from the notifications on display. For the same reason the Android-only background push task does not update the badge.
44 lines
1.6 KiB
TypeScript
44 lines
1.6 KiB
TypeScript
import { Platform } from 'react-native';
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import * as Notifications from 'expo-notifications';
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import type { Mailbox } from '../api/types';
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/**
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* The number on the app icon: the unread count of the active account's own
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* inbox, like the webmail's tab/app-icon badge (`FaviconBadge`). `role ===
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* 'inbox'` alone is not enough: shared and group inboxes sit in the same list,
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* so the first match can be somebody else's. 0 (no badge) when the setting is
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* off.
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*/
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export function appBadgeCount(mailboxes: readonly Mailbox[], enabled: boolean): number {
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if (!enabled) return 0;
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const inbox = mailboxes.find((m) => m.role === 'inbox' && !m.isShared);
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return Math.max(0, inbox?.unreadEmails ?? 0);
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}
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/**
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* Whether this platform can badge the app icon without side effects.
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*
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* iOS only. On Android expo-notifications badges through ShortcutBadger,
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* which only a few launchers honour (Android 8+ launchers derive their badge
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* from the notifications on display instead), and it implements a count of 0
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* as `NotificationManager.cancelAll()`: clearing the badge would also dismiss
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* every notification the app shows, including other accounts' new mail and
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* calendar reminders.
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*/
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export function canBadgeAppIcon(): boolean {
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return Platform.OS === 'ios';
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}
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/**
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* Show `count` on the app icon (0 clears it). A silent no-op where the
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* platform can't badge or the user denied badge permission.
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*/
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export async function setAppBadge(count: number): Promise<void> {
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if (!canBadgeAppIcon()) return;
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try {
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await Notifications.setBadgeCountAsync(Math.max(0, Math.floor(count)));
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} catch {
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// Badging is cosmetic; never let it surface as an error.
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}
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}
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