element-web/src/Notifier.js
Will Hunt 673a8fcb9d
Update src/Notifier.js
Co-Authored-By: Travis Ralston <travpc@gmail.com>
2019-06-03 21:19:17 +01:00

366 lines
13 KiB
JavaScript

/*
Copyright 2015, 2016 OpenMarket Ltd
Copyright 2017 Vector Creations Ltd
Copyright 2017 New Vector Ltd
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
import MatrixClientPeg from './MatrixClientPeg';
import PlatformPeg from './PlatformPeg';
import TextForEvent from './TextForEvent';
import Analytics from './Analytics';
import Avatar from './Avatar';
import dis from './dispatcher';
import sdk from './index';
import { _t } from './languageHandler';
import Modal from './Modal';
import SettingsStore, {SettingLevel} from "./settings/SettingsStore";
/*
* Dispatches:
* {
* action: "notifier_enabled",
* value: boolean
* }
*/
const MAX_PENDING_ENCRYPTED = 20;
const Notifier = {
notifsByRoom: {},
// A list of event IDs that we've received but need to wait until
// they're decrypted until we decide whether to notify for them
// or not
pendingEncryptedEventIds: [],
notificationMessageForEvent: function(ev) {
return TextForEvent.textForEvent(ev);
},
_displayPopupNotification: function(ev, room) {
const plaf = PlatformPeg.get();
if (!plaf) {
return;
}
if (!plaf.supportsNotifications() || !plaf.maySendNotifications()) {
return;
}
if (global.document.hasFocus()) {
return;
}
let msg = this.notificationMessageForEvent(ev);
if (!msg) return;
let title;
if (!ev.sender || room.name === ev.sender.name) {
title = room.name;
// notificationMessageForEvent includes sender,
// but we already have the sender here
if (ev.getContent().body) msg = ev.getContent().body;
} else if (ev.getType() === 'm.room.member') {
// context is all in the message here, we don't need
// to display sender info
title = room.name;
} else if (ev.sender) {
title = ev.sender.name + " (" + room.name + ")";
// notificationMessageForEvent includes sender,
// but we've just out sender in the title
if (ev.getContent().body) msg = ev.getContent().body;
}
if (!this.isBodyEnabled()) {
msg = '';
}
let avatarUrl = null;
if (ev.sender && !SettingsStore.getValue("lowBandwidth")) {
avatarUrl = Avatar.avatarUrlForMember(ev.sender, 40, 40, 'crop');
}
const notif = plaf.displayNotification(title, msg, avatarUrl, room);
// if displayNotification returns non-null, the platform supports
// clearing notifications later, so keep track of this.
if (notif) {
if (this.notifsByRoom[ev.getRoomId()] === undefined) this.notifsByRoom[ev.getRoomId()] = [];
this.notifsByRoom[ev.getRoomId()].push(notif);
}
},
getSoundForRoom: async function(roomId) {
// We do no caching here because the SDK caches setting
// and the browser will cache the sound.
const content = SettingsStore.getValue("notificationSound", roomId);
if (!content) {
return null;
}
if (!content.url) {
console.warn(`${roomId} has custom notification sound event, but no url key`);
return null;
}
if (!content.url.startsWith("mxc://")) {
console.warn(`${roomId} has custom notification sound event, but url is not a mxc url`);
return null;
}
// Ideally in here we could use MSC1310 to detect the type of file, and reject it.
return {
url: MatrixClientPeg.get().mxcUrlToHttp(content.url),
name: content.name,
type: content.type,
size: content.size,
};
},
_playAudioNotification: async function(ev, room) {
const sound = await this.getSoundForRoom(room.roomId);
console.log(`Got sound ${sound && sound.name || "default"} for ${room.roomId}`);
try {
const selector = document.querySelector(sound ? `audio[src='${sound.url}']` : "#messageAudio");
let audioElement = selector;
if (!selector) {
if (!sound) {
console.error("No audio element or sound to play for notification");
return;
}
audioElement = new Audio(sound.url);
if (sound.type) {
audioElement.type = sound.type;
}
document.body.appendChild(audioElement);
}
audioElement.play();
} catch (ex) {
console.warn("Caught error when trying to fetch room notification sound:", ex);
}
},
start: function() {
this.boundOnEvent = this.onEvent.bind(this);
this.boundOnSyncStateChange = this.onSyncStateChange.bind(this);
this.boundOnRoomReceipt = this.onRoomReceipt.bind(this);
this.boundOnEventDecrypted = this.onEventDecrypted.bind(this);
MatrixClientPeg.get().on('event', this.boundOnEvent);
MatrixClientPeg.get().on('Room.receipt', this.boundOnRoomReceipt);
MatrixClientPeg.get().on('Event.decrypted', this.boundOnEventDecrypted);
MatrixClientPeg.get().on("sync", this.boundOnSyncStateChange);
this.toolbarHidden = false;
this.isSyncing = false;
},
stop: function() {
if (MatrixClientPeg.get() && this.boundOnRoomTimeline) {
MatrixClientPeg.get().removeListener('Event', this.boundOnEvent);
MatrixClientPeg.get().removeListener('Room.receipt', this.boundOnRoomReceipt);
MatrixClientPeg.get().removeListener('Event.decrypted', this.boundOnEventDecrypted);
MatrixClientPeg.get().removeListener('sync', this.boundOnSyncStateChange);
}
this.isSyncing = false;
},
supportsDesktopNotifications: function() {
const plaf = PlatformPeg.get();
return plaf && plaf.supportsNotifications();
},
setEnabled: function(enable, callback) {
const plaf = PlatformPeg.get();
if (!plaf) return;
// Dev note: We don't set the "notificationsEnabled" setting to true here because it is a
// calculated value. It is determined based upon whether or not the master rule is enabled
// and other flags. Setting it here would cause a circular reference.
Analytics.trackEvent('Notifier', 'Set Enabled', enable);
// make sure that we persist the current setting audio_enabled setting
// before changing anything
if (SettingsStore.isLevelSupported(SettingLevel.DEVICE)) {
SettingsStore.setValue("audioNotificationsEnabled", null, SettingLevel.DEVICE, this.isEnabled());
}
if (enable) {
// Attempt to get permission from user
plaf.requestNotificationPermission().done((result) => {
if (result !== 'granted') {
// The permission request was dismissed or denied
// TODO: Support alternative branding in messaging
const description = result === 'denied'
? _t('Riot does not have permission to send you notifications - please check your browser settings')
: _t('Riot was not given permission to send notifications - please try again');
const ErrorDialog = sdk.getComponent('dialogs.ErrorDialog');
Modal.createTrackedDialog('Unable to enable Notifications', result, ErrorDialog, {
title: _t('Unable to enable Notifications'),
description,
});
return;
}
if (callback) callback();
dis.dispatch({
action: "notifier_enabled",
value: true,
});
});
} else {
dis.dispatch({
action: "notifier_enabled",
value: false,
});
}
// set the notifications_hidden flag, as the user has knowingly interacted
// with the setting we shouldn't nag them any further
this.setToolbarHidden(true);
},
isEnabled: function() {
return this.isPossible() && SettingsStore.getValue("notificationsEnabled");
},
isPossible: function() {
const plaf = PlatformPeg.get();
if (!plaf) return false;
if (!plaf.supportsNotifications()) return false;
if (!plaf.maySendNotifications()) return false;
return true; // possible, but not necessarily enabled
},
isBodyEnabled: function() {
return this.isEnabled() && SettingsStore.getValue("notificationBodyEnabled");
},
isAudioEnabled: function() {
return this.isEnabled() && SettingsStore.getValue("audioNotificationsEnabled");
},
setToolbarHidden: function(hidden, persistent = true) {
this.toolbarHidden = hidden;
Analytics.trackEvent('Notifier', 'Set Toolbar Hidden', hidden);
// XXX: why are we dispatching this here?
// this is nothing to do with notifier_enabled
dis.dispatch({
action: "notifier_enabled",
value: this.isEnabled(),
});
// update the info to localStorage for persistent settings
if (persistent && global.localStorage) {
global.localStorage.setItem("notifications_hidden", hidden);
}
},
shouldShowToolbar: function() {
const client = MatrixClientPeg.get();
if (!client) {
return false;
}
const isGuest = client.isGuest();
return !isGuest && this.supportsDesktopNotifications() &&
!this.isEnabled() && !this._isToolbarHidden();
},
_isToolbarHidden: function() {
// Check localStorage for any such meta data
if (global.localStorage) {
return global.localStorage.getItem("notifications_hidden") === "true";
}
return this.toolbarHidden;
},
onSyncStateChange: function(state) {
if (state === "SYNCING") {
this.isSyncing = true;
} else if (state === "STOPPED" || state === "ERROR") {
this.isSyncing = false;
}
},
onEvent: function(ev) {
if (!this.isSyncing) return; // don't alert for any messages initially
if (ev.sender && ev.sender.userId === MatrixClientPeg.get().credentials.userId) return;
// If it's an encrypted event and the type is still 'm.room.encrypted',
// it hasn't yet been decrypted, so wait until it is.
if (ev.isBeingDecrypted() || ev.isDecryptionFailure()) {
this.pendingEncryptedEventIds.push(ev.getId());
// don't let the list fill up indefinitely
while (this.pendingEncryptedEventIds.length > MAX_PENDING_ENCRYPTED) {
this.pendingEncryptedEventIds.shift();
}
return;
}
this._evaluateEvent(ev);
},
onEventDecrypted: function(ev) {
// 'decrypted' means the decryption process has finished: it may have failed,
// in which case it might decrypt soon if the keys arrive
if (ev.isDecryptionFailure()) return;
const idx = this.pendingEncryptedEventIds.indexOf(ev.getId());
if (idx === -1) return;
this.pendingEncryptedEventIds.splice(idx, 1);
this._evaluateEvent(ev);
},
onRoomReceipt: function(ev, room) {
if (room.getUnreadNotificationCount() === 0) {
// ideally we would clear each notification when it was read,
// but we have no way, given a read receipt, to know whether
// the receipt comes before or after an event, so we can't
// do this. Instead, clear all notifications for a room once
// there are no notifs left in that room., which is not quite
// as good but it's something.
const plaf = PlatformPeg.get();
if (!plaf) return;
if (this.notifsByRoom[room.roomId] === undefined) return;
for (const notif of this.notifsByRoom[room.roomId]) {
plaf.clearNotification(notif);
}
delete this.notifsByRoom[room.roomId];
}
},
_evaluateEvent: function(ev) {
const room = MatrixClientPeg.get().getRoom(ev.getRoomId());
const actions = MatrixClientPeg.get().getPushActionsForEvent(ev);
if (actions && actions.notify) {
if (this.isEnabled()) {
this._displayPopupNotification(ev, room);
}
if (actions.tweaks.sound && this.isAudioEnabled()) {
PlatformPeg.get().loudNotification(ev, room);
this._playAudioNotification(ev, room);
}
}
},
};
if (!global.mxNotifier) {
global.mxNotifier = Notifier;
}
module.exports = global.mxNotifier;