140 lines
4.0 KiB
JavaScript
140 lines
4.0 KiB
JavaScript
import React, { Component } from 'react';
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import { ScrollView } from 'react-native';
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import { connect } from 'react-redux';
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import { Container } from '../../base/react';
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import Thumbnail from './Thumbnail';
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import { styles } from './_';
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/**
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* React component for filmstrip.
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*
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* @extends Component
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*/
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class Filmstrip extends Component {
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/**
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* Filmstrip component's property types.
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*
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* @static
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*/
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static propTypes = {
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/**
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* The participants in the conference.
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*
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* @private
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* @type {Participant[]}
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*/
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_participants: React.PropTypes.array,
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/**
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* The indicator which determines whether the filmstrip is visible.
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*
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* @private
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* @type {boolean}
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*/
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_visible: React.PropTypes.bool.isRequired
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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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*/
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render() {
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return (
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<Container
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style = { styles.filmstrip }
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visible = { this.props._visible }>
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<ScrollView
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// eslint-disable-next-line react/jsx-curly-spacing
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contentContainerStyle = {
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styles.filmstripScrollViewContentContainer
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} // eslint-disable-line react/jsx-curly-spacing
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horizontal = { true }
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showsHorizontalScrollIndicator = { false }
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showsVerticalScrollIndicator = { false }>
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{
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this._sort(this.props._participants)
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.map(p =>
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<Thumbnail
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key = { p.id }
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participant = { p } />)
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}
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</ScrollView>
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</Container>
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);
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}
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/**
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* Sorts a specific array of <tt>Participant</tt>s in display order.
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*
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* @param {Participant[]} participants - The array of <tt>Participant</tt>s
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* to sort in display order.
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* @private
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* @returns {Participant[]} A new array containing the elements of the
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* specified <tt>participants</tt> array sorted in display order.
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*/
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_sort(participants) {
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// XXX Array.prototype.sort() is not appropriate because (1) it operates
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// in place and (2) it is not necessarily stable.
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const sortedParticipants = [];
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// Group the remote participants so that the local participant does not
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// appear in between remote participants. Have the remote participants
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// from right to left with the newest added/joined to the leftmost side.
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for (let i = participants.length - 1; i >= 0; --i) {
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const p = participants[i];
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p.local || sortedParticipants.push(p);
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}
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// Have the local participant at the rightmost side.
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for (let i = participants.length - 1; i >= 0; --i) {
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const p = participants[i];
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p.local && sortedParticipants.push(p);
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}
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return sortedParticipants;
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}
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}
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/**
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* Function that maps parts of Redux state tree into component props.
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*
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* @param {Object} state - Redux state.
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* @private
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* @returns {{
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* _participants: Participant[],
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* _visible: boolean
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* }}
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*/
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function _mapStateToProps(state) {
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return {
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/**
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* The participants in the conference.
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*
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* @private
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* @type {Participant[]}
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*/
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_participants: state['features/base/participants'],
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/**
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* The indicator which determines whether the filmstrip is visible.
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*
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* XXX The React Component Filmstrip is used on mobile only at the time
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* of this writing and on mobile the filmstrip is visible when the
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* toolbar is not.
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*
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* @private
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* @type {boolean}
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*/
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_visible: !state['features/toolbox'].visible
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};
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}
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export default connect(_mapStateToProps)(Filmstrip);
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