200 lines
6.1 KiB
JavaScript
200 lines
6.1 KiB
JavaScript
/* @flow */
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import _ from 'lodash';
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import React, { Component } from 'react';
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import { connect } from 'react-redux';
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import { dockToolbox } from '../../../toolbox';
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import { setFilmstripHovered } from '../../actions';
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import { shouldRemoteVideosBeVisible } from '../../functions';
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import Toolbar from './Toolbar';
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declare var interfaceConfig: Object;
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/**
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* The type of the React {@code Component} props of {@link Filmstrip}.
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*/
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type Props = {
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/**
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* Additional CSS class names top add to the root.
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*/
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_className: string,
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/**
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* Whether the UI/UX is filmstrip-only.
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*/
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_filmstripOnly: boolean,
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/**
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* Whether or not remote videos are currently being hovered over. Hover
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* handling is currently being handled detected outside of react.
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*/
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_hovered: boolean,
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/**
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* The redux {@code dispatch} function.
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*/
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dispatch: Dispatch<*>
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};
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/**
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* Implements a React {@link Component} which represents the filmstrip on
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* Web/React.
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*
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* @extends Component
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*/
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class Filmstrip extends Component <Props> {
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_isHovered: boolean;
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_notifyOfHoveredStateUpdate: Function;
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_onMouseOut: Function;
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_onMouseOver: Function;
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/**
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* Initializes a new {@code Filmstrip} instance.
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*
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* @param {Object} props - The read-only properties with which the new
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* instance is to be initialized.
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*/
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constructor(props: Props) {
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super(props);
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// Debounce the method for dispatching the new filmstrip handled state
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// so that it does not get called with each mouse movement event. This
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// also works around an issue where mouseout and then a mouseover event
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// is fired when hovering over remote thumbnails, which are not yet in
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// react.
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this._notifyOfHoveredStateUpdate
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= _.debounce(this._notifyOfHoveredStateUpdate, 100);
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// Cache the current hovered state for _updateHoveredState to always
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// send the last known hovered state.
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this._isHovered = false;
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// Bind event handlers so they are only bound once for every instance.
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this._onMouseOut = this._onMouseOut.bind(this);
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this._onMouseOver = this._onMouseOver.bind(this);
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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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// Note: Appending of {@code RemoteVideo} views is handled through
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// VideoLayout. The views do not get blown away on render() because
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// ReactDOMComponent is only aware of the given JSX and not new appended
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// DOM. As such, when updateDOMProperties gets called, only attributes
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// will get updated without replacing the DOM. If the known DOM gets
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// modified, then the views will get blown away.
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return (
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<div className = { `filmstrip ${this.props._className}` }>
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{ this.props._filmstripOnly && <Toolbar /> }
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<div
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className = 'filmstrip__videos'
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id = 'remoteVideos'>
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<div
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className = 'filmstrip__videos'
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id = 'filmstripLocalVideo'
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onMouseOut = { this._onMouseOut }
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onMouseOver = { this._onMouseOver }>
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<div id = 'filmstripLocalVideoThumbnail' />
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</div>
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<div
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className = 'filmstrip__videos'
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id = 'filmstripRemoteVideos'>
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{/*
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* XXX This extra video container is needed for
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* scrolling thumbnails in Firefox; otherwise, the flex
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* thumbnails resize instead of causing overflow.
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*/}
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<div
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className = 'remote-videos-container'
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id = 'filmstripRemoteVideosContainer'
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onMouseOut = { this._onMouseOut }
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onMouseOver = { this._onMouseOver }>
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<div id = 'localVideoTileViewContainer' />
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</div>
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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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* If the current hover state does not match the known hover state in redux,
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* dispatch an action to update the known hover state in redux.
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*
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* @private
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* @returns {void}
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*/
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_notifyOfHoveredStateUpdate() {
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if (this.props._hovered !== this._isHovered) {
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this.props.dispatch(dockToolbox(this._isHovered));
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this.props.dispatch(setFilmstripHovered(this._isHovered));
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}
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}
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/**
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* Updates the currently known mouseover state and attempt to dispatch an
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* update of the known hover state in redux.
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*
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* @private
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* @returns {void}
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*/
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_onMouseOut() {
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this._isHovered = false;
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this._notifyOfHoveredStateUpdate();
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}
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/**
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* Updates the currently known mouseover state and attempt to dispatch an
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* update of the known hover state in redux.
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*
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* @private
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* @returns {void}
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*/
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_onMouseOver() {
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this._isHovered = true;
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this._notifyOfHoveredStateUpdate();
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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 {@code Filmstrip}'s props.
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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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* _className: string,
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* _hovered: boolean,
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* _filmstripOnly: boolean
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* }}
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*/
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function _mapStateToProps(state) {
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const { hovered } = state['features/filmstrip'];
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const isFilmstripOnly = Boolean(interfaceConfig.filmStripOnly);
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const reduceHeight = !isFilmstripOnly
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&& state['features/toolbox'].visible
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&& interfaceConfig.TOOLBAR_BUTTONS.length;
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const remoteVideosVisible = shouldRemoteVideosBeVisible(state);
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const className = `${remoteVideosVisible ? '' : 'hide-videos'} ${
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reduceHeight ? 'reduce-height' : ''}`;
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return {
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_className: className,
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_filmstripOnly: isFilmstripOnly,
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_hovered: hovered
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};
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}
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export default connect(_mapStateToProps)(Filmstrip);
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