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LivestreamLayout.tsx
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LivestreamLayout.tsx
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import React, { useCallback, useEffect, useState } from 'react';
import { hasScreenShare, SfuModels } from '@stream-io/video-client';
import { useCall, useCallStateHooks } from '@stream-io/video-react-bindings';
import { StyleSheet, View, ViewStyle } from 'react-native';
import { usePaginatedLayoutSortPreset } from '../../../hooks/usePaginatedLayoutSortPreset';
import { useTheme } from '../../../contexts';
import {
VideoRenderer as DefaultVideoRenderer,
VideoRendererProps,
} from '../../Participant';
import { ScreenShareOverlayProps } from '../../utility/ScreenShareOverlay';
/**
* Props for the LivestreamLayout component.
*/
export type LivestreamLayoutProps = {
/*
* Check if device is in landscape mode.
* This will apply the landscape mode styles to the component.
*/
landscape?: boolean;
/**
* Component to customize the video component of the participant.
*/
VideoRenderer?: React.ComponentType<VideoRendererProps> | null;
/**
* Component to customize the ScreenShareOverlay.
*/
ScreenShareOverlay?: React.ComponentType<ScreenShareOverlayProps> | null;
};
/**
* The LivestreamLayout component presents the live stream video layout.
*/
export const LivestreamLayout = ({
landscape,
VideoRenderer = DefaultVideoRenderer,
ScreenShareOverlay,
}: LivestreamLayoutProps) => {
const { useParticipants, useHasOngoingScreenShare } = useCallStateHooks();
const call = useCall();
const {
theme: { colors, livestreamLayout },
} = useTheme();
const participants = useParticipants();
const [currentSpeaker] = participants;
const hasOngoingScreenShare = useHasOngoingScreenShare();
const presenter = hasOngoingScreenShare
? participants.find(hasScreenShare)
: undefined;
usePaginatedLayoutSortPreset(call);
const [objectFit, setObjectFit] =
useState<
React.ComponentProps<NonNullable<typeof VideoRenderer>>['objectFit']
>();
// no need to pass object fit for local participant as the dimensions are for remote tracks
const objectFitToBeSet = currentSpeaker?.isLocalParticipant
? undefined
: objectFit;
const onDimensionsChange = useCallback(
(d: SfuModels.VideoDimension | undefined) => {
if (d) {
const isWidthWide = d.width > d.height;
setObjectFit(isWidthWide ? 'contain' : 'cover');
}
},
[]
);
const landScapeStyles: ViewStyle = {
flexDirection: landscape ? 'row' : 'column',
};
return (
<View
style={[
styles.container,
landScapeStyles,
{ backgroundColor: colors.static_grey },
livestreamLayout.container,
]}
>
<RemoteVideoTrackDimensionsRenderLessComponent
onDimensionsChange={onDimensionsChange}
/>
{VideoRenderer &&
hasOngoingScreenShare &&
presenter &&
(ScreenShareOverlay ? (
<ScreenShareOverlay />
) : (
<VideoRenderer trackType="screenShareTrack" participant={presenter} />
))}
{VideoRenderer && !hasOngoingScreenShare && currentSpeaker && (
<VideoRenderer
participant={currentSpeaker}
objectFit={objectFitToBeSet}
trackType="videoTrack"
/>
)}
</View>
);
};
const RemoteVideoTrackDimensionsRenderLessComponent = ({
onDimensionsChange,
}: {
onDimensionsChange: (d: SfuModels.VideoDimension | undefined) => void;
}) => {
const [dimension, setDimension] = useState<SfuModels.VideoDimension>();
const { useCallStatsReport } = useCallStateHooks();
const statsReport = useCallStatsReport();
const highestFrameHeight = statsReport?.subscriberStats?.highestFrameHeight;
const highestFrameWidth = statsReport?.subscriberStats?.highestFrameWidth;
useEffect(() => {
if (highestFrameHeight && highestFrameWidth) {
setDimension({ height: highestFrameHeight, width: highestFrameWidth });
}
}, [highestFrameHeight, highestFrameWidth]);
useEffect(() => {
onDimensionsChange(dimension);
}, [dimension, onDimensionsChange]);
return null;
};
const styles = StyleSheet.create({
container: {
flex: 1,
},
});