394 lines
12 KiB
JavaScript
394 lines
12 KiB
JavaScript
// @flow
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import InlineMessage from '@atlaskit/inline-message';
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import React, { Component } from 'react';
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import type { Dispatch } from 'redux';
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import { createToolbarEvent, sendAnalytics } from '../../analytics';
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import { setAudioOnly } from '../../base/audio-only';
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import { VIDEO_QUALITY_LEVELS, setPreferredVideoQuality } from '../../base/conference';
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import { translate } from '../../base/i18n';
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import JitsiMeetJS from '../../base/lib-jitsi-meet';
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import { connect } from '../../base/redux';
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import logger from '../logger';
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const {
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HIGH,
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STANDARD,
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LOW
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} = VIDEO_QUALITY_LEVELS;
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/**
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* Creates an analytics event for a press of one of the buttons in the video
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* quality dialog.
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*
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* @param {string} quality - The quality which was selected.
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* @returns {Object} The event in a format suitable for sending via
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* sendAnalytics.
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*/
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const createEvent = function(quality) {
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return createToolbarEvent(
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'video.quality',
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{
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quality
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});
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};
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/**
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* The type of the React {@code Component} props of {@link VideoQualitySlider}.
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*/
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type Props = {
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/**
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* Whether or not the conference is in audio only mode.
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*/
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_audioOnly: Boolean,
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/**
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* Whether or not the conference is in peer to peer mode.
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*/
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_p2p: Boolean,
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/**
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* The currently configured maximum quality resolution to be sent and
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* received from the remote participants.
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*/
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_sendrecvVideoQuality: Number,
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/**
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* Whether or not displaying video is supported in the current
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* environment. If false, the slider will be disabled.
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*/
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_videoSupported: Boolean,
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/**
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* Invoked to request toggling of audio only mode.
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*/
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dispatch: Dispatch<any>,
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/**
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* Invoked to obtain translated strings.
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*/
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t: Function
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};
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/**
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* Implements a React {@link Component} which displays a slider for selecting a
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* new receive video quality.
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*
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* @extends Component
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*/
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class VideoQualitySlider extends Component<Props> {
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_sliderOptions: Array<Object>;
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/**
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* Initializes a new {@code VideoQualitySlider} instance.
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*
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* @param {Object} props - The read-only React Component props with which
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* the new instance is to be initialized.
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*/
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constructor(props) {
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super(props);
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// Bind event handlers so they are only bound once for every instance.
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this._enableAudioOnly = this._enableAudioOnly.bind(this);
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this._enableHighDefinition = this._enableHighDefinition.bind(this);
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this._enableLowDefinition = this._enableLowDefinition.bind(this);
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this._enableStandardDefinition
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= this._enableStandardDefinition.bind(this);
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this._onSliderChange = this._onSliderChange.bind(this);
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/**
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* An array of configuration options for displaying a choice in the
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* input. The onSelect callback will be invoked when the option is
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* selected and videoQuality helps determine which choice matches with
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* the currently active quality level.
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*
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* @private
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* @type {Object[]}
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*/
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this._sliderOptions = [
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{
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audioOnly: true,
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onSelect: this._enableAudioOnly,
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textKey: 'audioOnly.audioOnly'
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},
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{
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onSelect: this._enableLowDefinition,
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textKey: 'videoStatus.lowDefinition',
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videoQuality: LOW
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},
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{
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onSelect: this._enableStandardDefinition,
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textKey: 'videoStatus.standardDefinition',
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videoQuality: STANDARD
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},
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{
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onSelect: this._enableHighDefinition,
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textKey: 'videoStatus.highDefinition',
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videoQuality: HIGH
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}
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];
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}
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/**
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* Implements React's {@link Component#render()}.
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*
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* @inheritdoc
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* @returns {ReactElement}
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*/
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render() {
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const { _videoSupported, t } = this.props;
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const activeSliderOption = this._mapCurrentQualityToSliderValue();
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let classNames = 'video-quality-dialog';
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let warning = null;
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if (!_videoSupported) {
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classNames += ' video-not-supported';
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warning = this._renderAudioOnlyLockedMessage();
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}
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return (
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<div className = { classNames }>
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<h3 className = 'video-quality-dialog-title'>
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{ t('videoStatus.callQuality') }
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</h3>
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<div className = { warning ? '' : 'hide-warning' }>
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{ warning }
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</div>
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<div className = 'video-quality-dialog-contents'>
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<div className = 'video-quality-dialog-slider-container'>
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{ /* FIXME: onChange and onMouseUp are both used for
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* compatibility with IE11. This workaround can be
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* removed after upgrading to React 16.
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*/ }
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<input
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className = 'video-quality-dialog-slider'
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disabled = { !_videoSupported }
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max = { this._sliderOptions.length - 1 }
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min = '0'
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onChange = { this._onSliderChange }
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onMouseUp = { this._onSliderChange }
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step = '1'
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type = 'range'
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value
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= { activeSliderOption } />
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</div>
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<div className = 'video-quality-dialog-labels'>
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{ this._createLabels(activeSliderOption) }
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</div>
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</div>
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</div>
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);
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}
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/**
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* Creates a React Element for notifying that the browser is in audio only
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* and cannot be changed.
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*
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* @private
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* @returns {ReactElement}
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*/
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_renderAudioOnlyLockedMessage() {
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const { t } = this.props;
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return (
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<InlineMessage
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title = { t('videoStatus.onlyAudioAvailable') }>
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{ t('videoStatus.onlyAudioSupported') }
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</InlineMessage>
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);
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}
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/**
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* Creates React Elements to display mock tick marks with associated labels.
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*
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* @param {number} activeLabelIndex - Which of the sliderOptions should
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* display as currently active.
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* @private
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* @returns {ReactElement[]}
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*/
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_createLabels(activeLabelIndex) {
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const labelsCount = this._sliderOptions.length;
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const maxWidthOfLabel = `${100 / labelsCount}%`;
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return this._sliderOptions.map((sliderOption, index) => {
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const style = {
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maxWidth: maxWidthOfLabel,
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left: `${(index * 100) / (labelsCount - 1)}%`
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};
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const isActiveClass = activeLabelIndex === index ? 'active' : '';
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const className
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= `video-quality-dialog-label-container ${isActiveClass}`;
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return (
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<div
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className = { className }
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key = { index }
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style = { style }>
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<div className = 'video-quality-dialog-label'>
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{ this.props.t(sliderOption.textKey) }
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</div>
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</div>
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);
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});
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}
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_enableAudioOnly: () => void;
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/**
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* Dispatches an action to enable audio only mode.
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*
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* @private
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* @returns {void}
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*/
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_enableAudioOnly() {
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sendAnalytics(createEvent('audio.only'));
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logger.log('Video quality: audio only enabled');
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this.props.dispatch(setAudioOnly(true));
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}
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_enableHighDefinition: () => void;
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/**
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* Handles the action of the high definition video being selected.
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* Dispatches an action to receive high quality video from remote
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* participants.
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*
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* @private
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* @returns {void}
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*/
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_enableHighDefinition() {
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sendAnalytics(createEvent('high'));
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logger.log('Video quality: high enabled');
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this._setPreferredVideoQuality(HIGH);
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}
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_enableLowDefinition: () => void;
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/**
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* Dispatches an action to receive low quality video from remote
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* participants.
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*
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* @private
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* @returns {void}
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*/
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_enableLowDefinition() {
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sendAnalytics(createEvent('low'));
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logger.log('Video quality: low enabled');
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this._setPreferredVideoQuality(LOW);
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}
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_enableStandardDefinition: () => void;
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/**
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* Dispatches an action to receive standard quality video from remote
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* participants.
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*
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* @private
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* @returns {void}
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*/
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_enableStandardDefinition() {
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sendAnalytics(createEvent('standard'));
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logger.log('Video quality: standard enabled');
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this._setPreferredVideoQuality(STANDARD);
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}
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/**
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* Matches the current video quality state with corresponding index of the
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* component's slider options.
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*
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* @private
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* @returns {void}
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*/
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_mapCurrentQualityToSliderValue() {
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const { _audioOnly, _sendrecvVideoQuality } = this.props;
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const { _sliderOptions } = this;
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if (_audioOnly) {
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const audioOnlyOption = _sliderOptions.find(
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({ audioOnly }) => audioOnly);
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return _sliderOptions.indexOf(audioOnlyOption);
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}
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const matchingOption = _sliderOptions.find(
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({ videoQuality }) => videoQuality === _sendrecvVideoQuality);
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return _sliderOptions.indexOf(matchingOption);
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}
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_onSliderChange: () => void;
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/**
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* Invokes a callback when the selected video quality changes.
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*
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* @param {Object} event - The slider's change event.
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* @private
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* @returns {void}
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*/
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_onSliderChange(event) {
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const { _audioOnly, _sendrecvVideoQuality } = this.props;
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const {
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audioOnly,
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onSelect,
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videoQuality
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} = this._sliderOptions[event.target.value];
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// Take no action if the newly chosen option does not change audio only
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// or video quality state.
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if ((_audioOnly && audioOnly)
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|| (!_audioOnly && videoQuality === _sendrecvVideoQuality)) {
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return;
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}
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onSelect();
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}
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/**
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* Helper for changing the preferred maximum video quality to receive and
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* disable audio only.
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*
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* @param {number} qualityLevel - The new maximum video quality. Should be
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* a value enumerated in {@code VIDEO_QUALITY_LEVELS}.
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* @private
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* @returns {void}
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*/
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_setPreferredVideoQuality(qualityLevel) {
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this.props.dispatch(setPreferredVideoQuality(qualityLevel));
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if (this.props._audioOnly) {
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this.props.dispatch(setAudioOnly(false));
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}
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}
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}
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/**
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* Maps (parts of) the Redux state to the associated props for the
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* {@code VideoQualitySlider} component.
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*
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* @param {Object} state - The Redux state.
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* @private
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* @returns {{
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* _audioOnly: boolean,
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* _p2p: boolean,
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* _sendrecvVideoQuality: number
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* }}
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*/
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function _mapStateToProps(state) {
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const { enabled: audioOnly } = state['features/base/audio-only'];
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const { p2p, preferredVideoQuality } = state['features/base/conference'];
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return {
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_audioOnly: audioOnly,
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_p2p: p2p,
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_sendrecvVideoQuality: preferredVideoQuality,
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_videoSupported: JitsiMeetJS.mediaDevices.supportsVideo()
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};
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}
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export default translate(connect(_mapStateToProps)(VideoQualitySlider));
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