719 lines
21 KiB
JavaScript
719 lines
21 KiB
JavaScript
/* global $, APP, interfaceConfig */
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/* eslint-disable no-unused-vars */
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import React from 'react';
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import ReactDOM from 'react-dom';
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import { browser } from '../../../react/features/base/lib-jitsi-meet';
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import {
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ORIENTATION,
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LargeVideoBackground
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} from '../../../react/features/large-video';
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/* eslint-enable no-unused-vars */
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import Filmstrip from './Filmstrip';
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import LargeContainer from './LargeContainer';
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import UIEvents from '../../../service/UI/UIEvents';
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import UIUtil from '../util/UIUtil';
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// FIXME should be 'video'
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export const VIDEO_CONTAINER_TYPE = 'camera';
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const FADE_DURATION_MS = 300;
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/**
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* The CSS class used to add a filter effect on the large video when there is
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* a problem with local video.
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*
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* @private
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* @type {string}
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*/
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const LOCAL_PROBLEM_FILTER_CLASS = 'videoProblemFilter';
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/**
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* The CSS class used to add a filter effect on the large video when there is
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* a problem with remote video.
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*
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* @private
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* @type {string}
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*/
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const REMOTE_PROBLEM_FILTER_CLASS = 'remoteVideoProblemFilter';
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/**
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* Returns an array of the video dimensions, so that it keeps it's aspect
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* ratio and fits available area with it's larger dimension. This method
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* ensures that whole video will be visible and can leave empty areas.
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*
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* @param videoWidth the width of the video to position
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* @param videoHeight the height of the video to position
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* @param videoSpaceWidth the width of the available space
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* @param videoSpaceHeight the height of the available space
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* @return an array with 2 elements, the video width and the video height
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*/
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function computeDesktopVideoSize( // eslint-disable-line max-params
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videoWidth,
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videoHeight,
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videoSpaceWidth,
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videoSpaceHeight) {
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const aspectRatio = videoWidth / videoHeight;
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let availableWidth = Math.max(videoWidth, videoSpaceWidth);
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let availableHeight = Math.max(videoHeight, videoSpaceHeight);
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if (interfaceConfig.VERTICAL_FILMSTRIP) {
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// eslint-disable-next-line no-param-reassign
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videoSpaceWidth -= Filmstrip.getFilmstripWidth();
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} else {
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// eslint-disable-next-line no-param-reassign
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videoSpaceHeight -= Filmstrip.getFilmstripHeight();
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}
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if (availableWidth / aspectRatio >= videoSpaceHeight) {
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availableHeight = videoSpaceHeight;
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availableWidth = availableHeight * aspectRatio;
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}
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if (availableHeight * aspectRatio >= videoSpaceWidth) {
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availableWidth = videoSpaceWidth;
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availableHeight = availableWidth / aspectRatio;
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}
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return [ availableWidth, availableHeight ];
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}
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/**
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* Returns an array of the video dimensions. It respects the
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* VIDEO_LAYOUT_FIT config, to fit the video to the screen, by hiding some parts
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* of it, or to fit it to the height or width.
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*
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* @param videoWidth the original video width
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* @param videoHeight the original video height
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* @param videoSpaceWidth the width of the video space
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* @param videoSpaceHeight the height of the video space
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* @return an array with 2 elements, the video width and the video height
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*/
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function computeCameraVideoSize( // eslint-disable-line max-params
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videoWidth,
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videoHeight,
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videoSpaceWidth,
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videoSpaceHeight,
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videoLayoutFit) {
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const aspectRatio = videoWidth / videoHeight;
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switch (videoLayoutFit) {
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case 'height':
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return [ videoSpaceHeight * aspectRatio, videoSpaceHeight ];
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case 'width':
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return [ videoSpaceWidth, videoSpaceWidth / aspectRatio ];
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case 'both': {
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const videoSpaceRatio = videoSpaceWidth / videoSpaceHeight;
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const maxZoomCoefficient = interfaceConfig.MAXIMUM_ZOOMING_COEFFICIENT
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|| Infinity;
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if (videoSpaceRatio === aspectRatio) {
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return [ videoSpaceWidth, videoSpaceHeight ];
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}
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let [ width, height ] = computeCameraVideoSize(
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videoWidth,
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videoHeight,
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videoSpaceWidth,
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videoSpaceHeight,
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videoSpaceRatio < aspectRatio ? 'height' : 'width');
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const maxWidth = videoSpaceWidth * maxZoomCoefficient;
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const maxHeight = videoSpaceHeight * maxZoomCoefficient;
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if (width > maxWidth) {
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width = maxWidth;
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height = width / aspectRatio;
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} else if (height > maxHeight) {
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height = maxHeight;
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width = height * aspectRatio;
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}
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return [ width, height ];
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}
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default:
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return [ videoWidth, videoHeight ];
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}
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}
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/**
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* Returns an array of the video horizontal and vertical indents,
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* so that if fits its parent.
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*
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* @return an array with 2 elements, the horizontal indent and the vertical
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* indent
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*/
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function getCameraVideoPosition( // eslint-disable-line max-params
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videoWidth,
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videoHeight,
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videoSpaceWidth,
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videoSpaceHeight) {
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// Parent height isn't completely calculated when we position the video in
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// full screen mode and this is why we use the screen height in this case.
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// Need to think it further at some point and implement it properly.
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if (UIUtil.isFullScreen()) {
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// eslint-disable-next-line no-param-reassign
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videoSpaceHeight = window.innerHeight;
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}
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const horizontalIndent = (videoSpaceWidth - videoWidth) / 2;
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const verticalIndent = (videoSpaceHeight - videoHeight) / 2;
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return { horizontalIndent,
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verticalIndent };
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}
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/**
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* Returns an array of the video horizontal and vertical indents.
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* Centers horizontally and top aligns vertically.
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*
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* @return an array with 2 elements, the horizontal indent and the vertical
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* indent
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*/
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function getDesktopVideoPosition(videoWidth, videoHeight, videoSpaceWidth) {
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const horizontalIndent = (videoSpaceWidth - videoWidth) / 2;
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const verticalIndent = 0;// Top aligned
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return { horizontalIndent,
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verticalIndent };
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}
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/**
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* Container for user video.
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*/
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export class VideoContainer extends LargeContainer {
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// FIXME: With Temasys we have to re-select everytime
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/**
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*
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*/
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get $video() {
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return $('#largeVideo');
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}
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/**
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*
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*/
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get id() {
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return this.userId;
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}
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/**
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* Creates new VideoContainer instance.
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* @param resizeContainer {Function} function that takes care of the size
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* of the video container.
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* @param emitter {EventEmitter} the event emitter that will be used by
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* this instance.
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*/
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constructor(resizeContainer, emitter) {
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super();
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this.stream = null;
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this.userId = null;
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this.videoType = null;
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this.localFlipX = true;
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this.emitter = emitter;
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this.resizeContainer = resizeContainer;
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this.isVisible = false;
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/**
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* Whether the background should fit the height of the container
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* (portrait) or fit the width of the container (landscape).
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*
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* @private
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* @type {string|null}
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*/
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this._backgroundOrientation = null;
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/**
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* Flag indicates whether or not the background should be rendered.
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* If the background will not be visible then it is hidden to save
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* on performance.
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* @type {boolean}
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*/
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this._hideBackground = true;
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/**
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* Flag indicates whether or not the avatar is currently displayed.
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* @type {boolean}
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*/
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this.avatarDisplayed = false;
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this.$avatar = $('#dominantSpeaker');
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/**
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* A jQuery selector of the remote connection message.
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* @type {jQuery|HTMLElement}
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*/
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this.$remoteConnectionMessage = $('#remoteConnectionMessage');
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this.$remotePresenceMessage = $('#remotePresenceMessage');
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/**
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* Indicates whether or not the video stream attached to the video
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* element has started(which means that there is any image rendered
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* even if the video is stalled).
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* @type {boolean}
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*/
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this.wasVideoRendered = false;
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this.$wrapper = $('#largeVideoWrapper');
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/**
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* FIXME: currently using parent() because I can't come up with name
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* for id. We'll need to probably refactor the HTML related to the large
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* video anyway.
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*/
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this.$wrapperParent = this.$wrapper.parent();
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this.avatarHeight = $('#dominantSpeakerAvatar').height();
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const onPlayingCallback = function(event) {
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if (typeof resizeContainer === 'function') {
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resizeContainer(event);
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}
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this.wasVideoRendered = true;
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}.bind(this);
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// This does not work with Temasys plugin - has to be a property to be
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// copied between new <object> elements
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// this.$video.on('play', onPlay);
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this.$video[0].onplaying = onPlayingCallback;
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/**
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* A Set of functions to invoke when the video element resizes.
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*
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* @private
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*/
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this._resizeListeners = new Set();
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// As of May 16, 2017, temasys does not support resize events.
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this.$video[0].onresize = this._onResize.bind(this);
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}
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/**
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* Adds a function to the known subscribers of video element resize
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* events.
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*
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* @param {Function} callback - The subscriber to notify when the video
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* element resizes.
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* @returns {void}
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*/
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addResizeListener(callback) {
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this._resizeListeners.add(callback);
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}
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/**
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* Enables a filter on the video which indicates that there are some
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* problems with the local media connection.
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*
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* @param {boolean} enable <tt>true</tt> if the filter is to be enabled or
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* <tt>false</tt> otherwise.
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*/
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enableLocalConnectionProblemFilter(enable) {
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this.$video.toggleClass(LOCAL_PROBLEM_FILTER_CLASS, enable);
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this._updateBackground();
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}
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/**
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* Obtains media stream ID of the underlying {@link JitsiTrack}.
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* @return {string|null}
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*/
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getStreamID() {
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return this.stream ? this.stream.getId() : null;
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}
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/**
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* Get size of video element.
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* @returns {{width, height}}
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*/
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getStreamSize() {
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const video = this.$video[0];
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return {
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width: video.videoWidth,
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height: video.videoHeight
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};
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}
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/**
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* Calculate optimal video size for specified container size.
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* @param {number} containerWidth container width
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* @param {number} containerHeight container height
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* @returns {{availableWidth, availableHeight}}
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*/
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getVideoSize(containerWidth, containerHeight) {
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const { width, height } = this.getStreamSize();
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if (this.stream && this.isScreenSharing()) {
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return computeDesktopVideoSize(width,
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height,
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containerWidth,
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containerHeight);
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}
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return computeCameraVideoSize(width,
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height,
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containerWidth,
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containerHeight,
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interfaceConfig.VIDEO_LAYOUT_FIT);
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}
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/* eslint-disable max-params */
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/**
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* Calculate optimal video position (offset for top left corner)
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* for specified video size and container size.
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* @param {number} width video width
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* @param {number} height video height
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* @param {number} containerWidth container width
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* @param {number} containerHeight container height
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* @returns {{horizontalIndent, verticalIndent}}
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*/
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getVideoPosition(width, height, containerWidth, containerHeight) {
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/* eslint-enable max-params */
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if (this.stream && this.isScreenSharing()) {
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let availableContainerWidth = containerWidth;
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if (interfaceConfig.VERTICAL_FILMSTRIP) {
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availableContainerWidth -= Filmstrip.getFilmstripWidth();
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}
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return getDesktopVideoPosition(width,
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height,
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availableContainerWidth,
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containerHeight);
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}
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return getCameraVideoPosition(width,
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height,
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containerWidth,
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containerHeight);
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}
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/**
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* Updates the positioning of the remote connection presence message and the
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* connection status message which escribes that the remote user is having
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* connectivity issues.
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*
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* @returns {void}
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*/
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positionRemoteStatusMessages() {
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this._positionParticipantStatus(this.$remoteConnectionMessage);
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this._positionParticipantStatus(this.$remotePresenceMessage);
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}
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/**
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* Modifies the position of the passed in jQuery object so it displays
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* in the middle of the video container or below the avatar.
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*
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* @private
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* @returns {void}
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*/
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_positionParticipantStatus($element) {
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if (this.avatarDisplayed) {
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const $avatarImage = $('#dominantSpeakerAvatar');
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$element.css(
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'top',
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$avatarImage.offset().top + $avatarImage.height() + 10);
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} else {
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const height = $element.height();
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const parentHeight = $element.parent().height();
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$element.css('top', (parentHeight / 2) - (height / 2));
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}
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}
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/**
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*
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*/
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resize(containerWidth, containerHeight, animate = false) {
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// XXX Prevent TypeError: undefined is not an object when the Web
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// browser does not support WebRTC (yet).
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if (this.$video.length === 0) {
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return;
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}
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const [ width, height ]
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= this.getVideoSize(containerWidth, containerHeight);
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if ((containerWidth > width) || (containerHeight > height)) {
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this._backgroundOrientation = containerWidth > width
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? ORIENTATION.LANDSCAPE : ORIENTATION.PORTRAIT;
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this._hideBackground = false;
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} else {
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this._hideBackground = true;
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}
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this._updateBackground();
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const { horizontalIndent, verticalIndent }
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= this.getVideoPosition(width, height,
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containerWidth, containerHeight);
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// update avatar position
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const top = (containerHeight / 2) - (this.avatarHeight / 4 * 3);
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this.$avatar.css('top', top);
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this.positionRemoteStatusMessages();
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this.$wrapper.animate({
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width,
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height,
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top: verticalIndent,
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bottom: verticalIndent,
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left: horizontalIndent,
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right: horizontalIndent
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}, {
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queue: false,
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duration: animate ? 500 : 0
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});
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}
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/**
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* Removes a function from the known subscribers of video element resize
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* events.
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*
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* @param {Function} callback - The callback to remove from known
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* subscribers of video resize events.
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* @returns {void}
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*/
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removeResizeListener(callback) {
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this._resizeListeners.delete(callback);
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}
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/**
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* Update video stream.
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* @param {string} userID
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* @param {JitsiTrack?} stream new stream
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* @param {string} videoType video type
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*/
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setStream(userID, stream, videoType) {
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this.userId = userID;
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if (this.stream === stream) {
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// Handles the use case for the remote participants when the
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// videoType is received with delay after turning on/off the
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// desktop sharing.
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if (this.videoType !== videoType) {
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this.videoType = videoType;
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this.resizeContainer();
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}
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return;
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}
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// The stream has changed, so the image will be lost on detach
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this.wasVideoRendered = false;
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// detach old stream
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if (this.stream) {
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this.stream.detach(this.$video[0]);
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}
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this.stream = stream;
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this.videoType = videoType;
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if (!stream) {
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return;
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}
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stream.attach(this.$video[0]);
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const flipX = stream.isLocal() && this.localFlipX;
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this.$video.css({
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transform: flipX ? 'scaleX(-1)' : 'none'
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});
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this._updateBackground();
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// Reset the large video background depending on the stream.
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this.setLargeVideoBackground(this.avatarDisplayed);
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}
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/**
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* Changes the flipX state of the local video.
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* @param val {boolean} true if flipped.
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*/
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setLocalFlipX(val) {
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this.localFlipX = val;
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if (!this.$video || !this.stream || !this.stream.isLocal()) {
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return;
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}
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this.$video.css({
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transform: this.localFlipX ? 'scaleX(-1)' : 'none'
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});
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this._updateBackground();
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}
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/**
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* Check if current video stream is screen sharing.
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* @returns {boolean}
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*/
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isScreenSharing() {
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return this.videoType === 'desktop';
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}
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/**
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* Show or hide user avatar.
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* @param {boolean} show
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*/
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showAvatar(show) {
|
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// TO FIX: Video background need to be black, so that we don't have a
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// flickering effect when scrolling between videos and have the screen
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// move to grey before going back to video. Avatars though can have the
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// default background set.
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// In order to fix this code we need to introduce video background or
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// find a workaround for the video flickering.
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this.setLargeVideoBackground(show);
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this.$avatar.css('visibility', show ? 'visible' : 'hidden');
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this.avatarDisplayed = show;
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this.emitter.emit(UIEvents.LARGE_VIDEO_AVATAR_VISIBLE, show);
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APP.API.notifyLargeVideoVisibilityChanged(show);
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}
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/**
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* Indicates that the remote user who is currently displayed by this video
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* container is having connectivity issues.
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*
|
|
* @param {boolean} show <tt>true</tt> to show or <tt>false</tt> to hide
|
|
* the indication.
|
|
*/
|
|
showRemoteConnectionProblemIndicator(show) {
|
|
this.$video.toggleClass(REMOTE_PROBLEM_FILTER_CLASS, show);
|
|
this.$avatar.toggleClass(REMOTE_PROBLEM_FILTER_CLASS, show);
|
|
this._updateBackground();
|
|
}
|
|
|
|
|
|
/**
|
|
* We are doing fadeOut/fadeIn animations on parent div which wraps
|
|
* largeVideo, because when Temasys plugin is in use it replaces
|
|
* <video> elements with plugin <object> tag. In Safari jQuery is
|
|
* unable to store values on this plugin object which breaks all
|
|
* animation effects performed on it directly.
|
|
*/
|
|
show() {
|
|
// its already visible
|
|
if (this.isVisible) {
|
|
return Promise.resolve();
|
|
}
|
|
|
|
return new Promise(resolve => {
|
|
this.$wrapperParent.css('visibility', 'visible').fadeTo(
|
|
FADE_DURATION_MS,
|
|
1,
|
|
() => {
|
|
this.isVisible = true;
|
|
resolve();
|
|
}
|
|
);
|
|
});
|
|
}
|
|
|
|
/**
|
|
*
|
|
*/
|
|
hide() {
|
|
// as the container is hidden/replaced by another container
|
|
// hide its avatar
|
|
this.showAvatar(false);
|
|
|
|
// its already hidden
|
|
if (!this.isVisible) {
|
|
return Promise.resolve();
|
|
}
|
|
|
|
return new Promise(resolve => {
|
|
this.$wrapperParent.fadeTo(FADE_DURATION_MS, 0, () => {
|
|
this.$wrapperParent.css('visibility', 'hidden');
|
|
this.isVisible = false;
|
|
resolve();
|
|
});
|
|
});
|
|
}
|
|
|
|
/**
|
|
* @return {boolean} switch on dominant speaker event if on stage.
|
|
*/
|
|
stayOnStage() {
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Sets the large video container background depending on the container
|
|
* type and the parameter indicating if an avatar is currently shown on
|
|
* large.
|
|
*
|
|
* @param {boolean} isAvatar - Indicates if the avatar is currently shown
|
|
* on the large video.
|
|
* @returns {void}
|
|
*/
|
|
setLargeVideoBackground(isAvatar) {
|
|
$('#largeVideoContainer').css('background',
|
|
this.videoType === VIDEO_CONTAINER_TYPE && !isAvatar
|
|
? '#000' : interfaceConfig.DEFAULT_BACKGROUND);
|
|
}
|
|
|
|
/**
|
|
* Callback invoked when the video element changes dimensions.
|
|
*
|
|
* @private
|
|
* @returns {void}
|
|
*/
|
|
_onResize() {
|
|
this._resizeListeners.forEach(callback => callback());
|
|
}
|
|
|
|
/**
|
|
* Attaches and/or updates a React Component to be used as a background for
|
|
* the large video, to display blurred video and fill up empty space not
|
|
* taken up by the large video.
|
|
*
|
|
* @private
|
|
* @returns {void}
|
|
*/
|
|
_updateBackground() {
|
|
// Do not the background display on browsers that might experience
|
|
// performance issues from the presence of the background or if
|
|
// explicitly disabled.
|
|
if (interfaceConfig.DISABLE_VIDEO_BACKGROUND
|
|
|| browser.isFirefox()
|
|
|| browser.isSafariWithWebrtc()
|
|
|| browser.isTemasysPluginUsed()) {
|
|
return;
|
|
}
|
|
|
|
ReactDOM.render(
|
|
<LargeVideoBackground
|
|
hidden = { this._hideBackground }
|
|
mirror = {
|
|
this.stream
|
|
&& this.stream.isLocal()
|
|
&& this.localFlipX
|
|
}
|
|
orientationFit = { this._backgroundOrientation }
|
|
showLocalProblemFilter
|
|
= { this.$video.hasClass(LOCAL_PROBLEM_FILTER_CLASS) }
|
|
showRemoteProblemFilter
|
|
= { this.$video.hasClass(REMOTE_PROBLEM_FILTER_CLASS) }
|
|
videoElement = { this.$video && this.$video[0] }
|
|
videoTrack = { this.stream } />,
|
|
document.getElementById('largeVideoBackgroundContainer')
|
|
);
|
|
}
|
|
}
|