signal-desktop/ts/state/selectors/audioPlayer.ts
2023-01-03 11:55:46 -08:00

68 lines
1.8 KiB
TypeScript

// Copyright 2021 Signal Messenger, LLC
// SPDX-License-Identifier: AGPL-3.0-only
import { createSelector } from 'reselect';
import { collectFirst } from '../../util/iterables';
import type { StateType } from '../reducer';
import { getConversations } from './conversations';
import { getPropsForAttachment } from './message';
export const isPaused = (state: StateType): boolean => {
return state.audioPlayer.active === undefined;
};
export const selectActiveVoiceNoteMessageId = (
state: StateType
): string | undefined => state.audioPlayer.active?.id;
export const selectNextConsecutiveVoiceNoteMessageId = createSelector(
getConversations,
selectActiveVoiceNoteMessageId,
(
conversations,
activeVoiceNoteMessageId
): { id: string; url: string } | undefined => {
if (!activeVoiceNoteMessageId) {
return undefined;
}
const currentMessage =
conversations.messagesLookup[activeVoiceNoteMessageId];
const conversationMessages =
conversations.messagesByConversation[currentMessage.conversationId];
if (!conversationMessages) {
return undefined;
}
const idx = conversationMessages.messageIds.indexOf(
activeVoiceNoteMessageId
);
const nextIdx = idx + 1;
if (!(nextIdx in conversationMessages.messageIds)) {
return undefined;
}
const nextMessageId = conversationMessages.messageIds[nextIdx];
const nextMessage = conversations.messagesLookup[nextMessageId];
if (!nextMessage.attachments) {
return undefined;
}
const voiceNoteUrl = collectFirst(
nextMessage.attachments.map(getPropsForAttachment),
a => (a && a.isVoiceMessage && a.url ? a.url : undefined)
);
if (!voiceNoteUrl) {
return undefined;
}
return {
id: nextMessageId,
url: voiceNoteUrl,
};
}
);