48 lines
1.6 KiB
JavaScript
48 lines
1.6 KiB
JavaScript
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/**
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* Returns local participant from Redux state.
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*
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* @param {(Function|Participant[])} participantsOrGetState - Either the
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* features/base/participants Redux state or Redux's getState function to be
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* used to retrieve the features/base/participants state.
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* @returns {(Participant|undefined)}
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*/
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export function getLocalParticipant(participantsOrGetState) {
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const participants = _getParticipants(participantsOrGetState);
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return participants.find(p => p.local);
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}
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/**
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* Returns participant by ID from Redux state.
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*
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* @param {(Function|Participant[])} participantsOrGetState - Either the
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* features/base/participants Redux state or Redux's getState function to be
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* used to retrieve the features/base/participants state.
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* @param {string} id - The ID of the participant to retrieve.
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* @private
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* @returns {(Participant|undefined)}
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*/
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export function getParticipantById(participantsOrGetState, id) {
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const participants = _getParticipants(participantsOrGetState);
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return participants.find(p => p.id === id);
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}
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/**
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* Returns array of participants from Redux state.
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*
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* @param {(Function|Participant[])} participantsOrGetState - Either the
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* features/base/participants Redux state or Redux's getState function to be
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* used to retrieve the features/base/participants state.
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* @private
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* @returns {Participant[]}
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*/
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function _getParticipants(participantsOrGetState) {
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const participants
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= typeof participantsOrGetState === 'function'
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? participantsOrGetState()['features/base/participants']
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: participantsOrGetState;
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return participants || [];
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}
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