// @flow import React, { Component } from 'react'; import { translate } from '../../../../base/i18n'; import { equals } from '../../../../base/redux'; import Video from '../../../../base/media/components/Video'; import { createLocalVideoTracks } from '../../../functions'; const videoClassName = 'video-preview-video flipVideoX'; /** * The type of the React {@code Component} props of {@link VideoSettingsContent}. */ export type Props = { /** * The deviceId of the camera device currently being used. */ currentCameraDeviceId: string, /** * Callback invoked to change current camera. */ setVideoInputDevice: Function, /** * Invoked to obtain translated strings. */ t: Function, /** * Callback invoked to toggle the settings popup visibility. */ toggleVideoSettings: Function, /** * All the camera device ids currently connected. */ videoDeviceIds: string[], }; /** * The type of the React {@code Component} state of {@link VideoSettingsContent}. */ type State = { /** * An array of all the jitsiTracks and eventual errors. */ trackData: Object[], }; /** * Implements a React {@link Component} which displays a list of video * previews to choose from. * * @extends Component */ class VideoSettingsContent extends Component { _componentWasUnmounted: boolean; /** * Initializes a new {@code VideoSettingsContent} instance. * * @param {Object} props - The read-only properties with which the new * instance is to be initialized. */ constructor(props) { super(props); this.state = { trackData: new Array(props.videoDeviceIds.length).fill({ jitsiTrack: null }) }; } /** * Creates and updates the track data. * * @returns {void} */ async _setTracks() { this._disposeTracks(this.state.trackData); const trackData = await createLocalVideoTracks( this.props.videoDeviceIds, ); // In case the component gets unmounted before the tracks are created // avoid a leak by not setting the state if (this._componentWasUnmounted) { this._disposeTracks(trackData); } else { this.setState({ trackData }); } } /** * Destroys all the tracks from trackData object. * * @param {Object[]} trackData - An array of tracks that are to be disposed. * @returns {Promise} */ _disposeTracks(trackData) { trackData.forEach(({ jitsiTrack }) => { jitsiTrack && jitsiTrack.dispose(); }); } /** * Returns the click handler used when selecting the video preview. * * @param {string} deviceId - The id of the camera device. * @returns {Function} */ _onEntryClick(deviceId) { return () => { this.props.setVideoInputDevice(deviceId); this.props.toggleVideoSettings(); }; } /** * Renders a preview entry. * * @param {Object} data - The track data. * @param {number} index - The index of the entry. * @returns {React$Node} */ _renderPreviewEntry(data, index) { const { error, jitsiTrack, deviceId } = data; const { currentCameraDeviceId, t } = this.props; const isSelected = deviceId === currentCameraDeviceId; const key = `vp-${index}`; const className = 'video-preview-entry'; if (error) { return (
{t(error)}
); } const props: Object = { className, key }; const label = jitsiTrack && jitsiTrack.getTrackLabel(); if (isSelected) { props.className = `${className} video-preview-entry--selected`; } else { props.onClick = this._onEntryClick(deviceId); } return (
{label}
); } /** * Implements React's {@link Component#componentDidMount}. * * @inheritdoc */ componentDidMount() { this._setTracks(); } /** * Implements React's {@link Component#componentWillUnmount}. * * @inheritdoc */ componentWillUnmount() { this._componentWasUnmounted = true; this._disposeTracks(this.state.trackData); } /** * Implements React's {@link Component#componentDidUpdate}. * * @inheritdoc */ componentDidUpdate(prevProps) { if (!equals(this.props.videoDeviceIds, prevProps.videoDeviceIds)) { this._setTracks(); } } /** * Implements React's {@link Component#render}. * * @inheritdoc */ render() { const { trackData } = this.state; return (
{trackData.map((data, i) => this._renderPreviewEntry(data, i))}
); } } export default translate(VideoSettingsContent);