signal-desktop/ts/state/smart/Lightbox.tsx

110 lines
3.5 KiB
TypeScript

// Copyright 2022 Signal Messenger, LLC
// SPDX-License-Identifier: AGPL-3.0-only
import React, { useCallback } from 'react';
import { useSelector } from 'react-redux';
import type { ReadonlyDeep } from 'type-fest';
import type { GetConversationByIdType } from '../selectors/conversations';
import type { LocalizerType } from '../../types/Util';
import type { MediaItemType } from '../../types/MediaItem';
import type { StateType } from '../reducer';
import { Lightbox } from '../../components/Lightbox';
import { getConversationSelector } from '../selectors/conversations';
import { getIntl } from '../selectors/user';
import { useConversationsActions } from '../ducks/conversations';
import { useGlobalModalActions } from '../ducks/globalModals';
import { useLightboxActions } from '../ducks/lightbox';
import { useAudioPlayerActions } from '../ducks/audioPlayer';
import {
getIsViewOnce,
getMedia,
getHasPrevMessage,
getHasNextMessage,
getPlaybackDisabled,
getSelectedIndex,
shouldShowLightbox,
} from '../selectors/lightbox';
export function SmartLightbox(): JSX.Element | null {
const i18n = useSelector<StateType, LocalizerType>(getIntl);
const { saveAttachment } = useConversationsActions();
const {
closeLightbox,
showLightboxForNextMessage,
showLightboxForPrevMessage,
setSelectedLightboxIndex,
} = useLightboxActions();
const { toggleForwardMessagesModal } = useGlobalModalActions();
const { pauseVoiceNotePlayer } = useAudioPlayerActions();
const conversationSelector = useSelector<StateType, GetConversationByIdType>(
getConversationSelector
);
const isShowingLightbox = useSelector<StateType, boolean>(shouldShowLightbox);
const isViewOnce = useSelector<StateType, boolean>(getIsViewOnce);
const media = useSelector<
StateType,
ReadonlyArray<ReadonlyDeep<MediaItemType>>
>(getMedia);
const hasPrevMessage = useSelector<StateType, boolean>(getHasPrevMessage);
const hasNextMessage = useSelector<StateType, boolean>(getHasNextMessage);
const selectedIndex = useSelector<StateType, number>(getSelectedIndex);
const playbackDisabled = useSelector<StateType, boolean>(getPlaybackDisabled);
const onPrevAttachment = useCallback(() => {
if (selectedIndex <= 0) {
if (hasPrevMessage) {
showLightboxForPrevMessage();
}
return;
}
setSelectedLightboxIndex(selectedIndex - 1);
}, [
showLightboxForPrevMessage,
selectedIndex,
setSelectedLightboxIndex,
hasPrevMessage,
]);
const onNextAttachment = useCallback(() => {
if (selectedIndex >= media.length - 1) {
if (hasNextMessage) {
showLightboxForNextMessage();
}
return;
}
setSelectedLightboxIndex(selectedIndex + 1);
}, [
showLightboxForNextMessage,
media,
selectedIndex,
setSelectedLightboxIndex,
hasNextMessage,
]);
if (!isShowingLightbox) {
return null;
}
return (
<Lightbox
closeLightbox={closeLightbox}
getConversation={conversationSelector}
i18n={i18n}
isViewOnce={isViewOnce}
media={media}
playbackDisabled={playbackDisabled}
saveAttachment={saveAttachment}
selectedIndex={selectedIndex || 0}
toggleForwardMessagesModal={toggleForwardMessagesModal}
onMediaPlaybackStart={pauseVoiceNotePlayer}
onPrevAttachment={onPrevAttachment}
onNextAttachment={onNextAttachment}
onSelectAttachment={setSelectedLightboxIndex}
hasNextMessage={hasNextMessage}
hasPrevMessage={hasPrevMessage}
/>
);
}