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import _ from 'lodash';
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import { getStatus } from '../notifications';
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import { isMacOS } from '../OS';
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import { isAudioNotificationSupported } from '../types/Settings';
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import { isWindowFocused } from './focusListener';
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const SettingNames = {
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COUNT: 'count',
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NAME: 'name',
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MESSAGE: 'message',
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};
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function filter(text?: string) {
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return (text || '')
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.replace(/&/g, '&')
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.replace(/"/g, '"')
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.replace(/'/g, ''')
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.replace(/</g, '<')
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.replace(/>/g, '>');
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}
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export type SessionNotification = {
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conversationId: string;
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iconUrl: string;
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isExpiringMessage: boolean;
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message: string;
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messageId?: string;
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messageSentAt: number;
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title: string;
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};
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let isEnabled: boolean = false;
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let lastNotificationDisplayed: null | Notification = null;
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let currentNotifications: Array<SessionNotification> = [];
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// Testing indicated that trying to create/destroy notifications too quickly
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// resulted in notifications that stuck around forever, requiring the user
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// to manually close them. This introduces a minimum amount of time between calls,
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// and batches up the quick successive update() calls we get from an incoming
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// read sync, which might have a number of messages referenced inside of it.
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const debouncedUpdate = _.debounce(update, 2000);
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const fastUpdate = update;
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function clear() {
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// window.log.info('Remove all notifications');
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currentNotifications = [];
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debouncedUpdate();
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}
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// We don't usually call this, but when the process is shutting down, we should at
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// least try to remove the notification immediately instead of waiting for the
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// normal debounce.
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function fastClear() {
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currentNotifications = [];
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fastUpdate();
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}
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function enable() {
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const needUpdate = !isEnabled;
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isEnabled = true;
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if (needUpdate) {
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debouncedUpdate();
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}
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}
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function disable() {
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isEnabled = false;
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}
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function addNotification(notif: SessionNotification) {
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const alreadyThere = currentNotifications.find(
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n => n.conversationId === notif.conversationId && n.messageId === notif.messageId
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);
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if (alreadyThere) {
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return;
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}
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currentNotifications.push(notif);
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debouncedUpdate();
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}
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function clearByConversationID(convoId: string) {
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const oldLength = currentNotifications.length;
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currentNotifications = currentNotifications.filter(n => n.conversationId === convoId);
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if (oldLength !== currentNotifications.length) {
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onRemove();
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}
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}
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function clearByMessageId(messageId: string) {
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if (!messageId) {
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return;
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}
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const oldLength = currentNotifications.length;
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currentNotifications = currentNotifications.filter(n => n.messageId === messageId);
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if (oldLength !== currentNotifications.length) {
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onRemove();
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}
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}
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function update() {
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if (lastNotificationDisplayed) {
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lastNotificationDisplayed.close();
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lastNotificationDisplayed = null;
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}
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const isAppFocused = isWindowFocused();
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const isAudioNotificationEnabled = storage.get('audio-notification') || false;
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const audioNotificationSupported = isAudioNotificationSupported();
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// const isNotificationGroupingSupported = Settings.isNotificationGroupingSupported();
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const numNotifications = currentNotifications.length;
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const userSetting = getUserSetting();
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const status = getStatus({
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isAppFocused,
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isAudioNotificationEnabled,
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isAudioNotificationSupported: audioNotificationSupported,
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isEnabled,
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numNotifications,
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userSetting,
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});
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// window.log.info(
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// 'Update notifications:',
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// Object.assign({}, status, {
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// isNotificationGroupingSupported,
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// })
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// );
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if (status.type !== 'ok') {
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if (status.shouldClearNotifications) {
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currentNotifications = [];
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}
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return;
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}
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let title;
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let message;
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let iconUrl;
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const messagesNotificationCount = currentNotifications.length;
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// NOTE: i18n has more complex rules for pluralization than just
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// distinguishing between zero (0) and other (non-zero),
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// e.g. Russian:
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// http://docs.translatehouse.org/projects/localization-guide/en/latest/l10n/pluralforms.html
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const newMessageCountLabel = `${messagesNotificationCount} ${
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messagesNotificationCount === 1 ? window.i18n('newMessage') : window.i18n('newMessages')
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}`;
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if (!currentNotifications.length) {
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return;
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}
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const lastNotification = _.last(currentNotifications);
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if (!lastNotification) {
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return;
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}
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switch (userSetting) {
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case SettingNames.COUNT:
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title = 'Session';
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if (messagesNotificationCount > 0) {
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message = newMessageCountLabel;
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} else {
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return;
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}
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break;
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case SettingNames.NAME: {
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const lastMessageTitle = lastNotification.title;
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title = newMessageCountLabel;
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// eslint-disable-next-line prefer-destructuring
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iconUrl = lastNotification.iconUrl;
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if (messagesNotificationCount === 1) {
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message = `${window.i18n('notificationFrom')} ${lastMessageTitle}`;
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} else {
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message = window.i18n('notificationMostRecentFrom', [lastMessageTitle]);
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}
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break;
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}
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case SettingNames.MESSAGE:
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if (messagesNotificationCount === 1) {
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// eslint-disable-next-line prefer-destructuring
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title = lastNotification.title;
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// eslint-disable-next-line prefer-destructuring
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message = lastNotification.message;
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} else {
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title = newMessageCountLabel;
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message = `${window.i18n('notificationMostRecent')} ${lastNotification.message}`;
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}
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// eslint-disable-next-line prefer-destructuring
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iconUrl = lastNotification.iconUrl;
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break;
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default:
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window.log.error(`Error: Unknown user notification setting: '${userSetting}'`);
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}
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const shouldHideExpiringMessageBody = lastNotification.isExpiringMessage && isMacOS();
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if (shouldHideExpiringMessageBody) {
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message = window.i18n('newMessage');
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}
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window.drawAttention();
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lastNotificationDisplayed = new Notification(title || '', {
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body: window.platform === 'linux' ? filter(message) : message,
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icon: iconUrl,
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silent: !status.shouldPlayNotificationSound,
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});
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lastNotificationDisplayed.onclick = () => {
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window.openFromNotification(lastNotification.conversationId);
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};
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// We continue to build up more and more messages for our notifications
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// until the user comes back to our app or closes the app. Then we’ll
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// clear everything out. The good news is that we'll have a maximum of
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// 1 notification in the Notification area (something like
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// ‘10 new messages’) assuming that `Notification::close` does its job.
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}
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function getUserSetting() {
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return storage.get('notification-setting') || SettingNames.MESSAGE;
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}
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function onRemove() {
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// window.log.info('Remove notification');
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debouncedUpdate();
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}
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export const Notifications = {
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addNotification,
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disable,
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enable,
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clear,
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fastClear,
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clearByConversationID,
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clearByMessageId,
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};
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Audric Ackermann
4 years ago