jiti-meet/modules/UI/videolayout/VideoContainer.js

465 lines
14 KiB
JavaScript

/* global $, APP, interfaceConfig */
/* jshint -W101 */
import FilmStrip from './FilmStrip';
import LargeContainer from './LargeContainer';
import UIEvents from "../../../service/UI/UIEvents";
import UIUtil from "../util/UIUtil";
// FIXME should be 'video'
export const VIDEO_CONTAINER_TYPE = "camera";
const FADE_DURATION_MS = 300;
/**
* Get stream id.
* @param {JitsiTrack?} stream
*/
function getStreamOwnerId(stream) {
if (!stream) {
return;
}
// local stream doesn't have method "getParticipantId"
if (stream.isLocal()) {
return APP.conference.getMyUserId();
} else {
return stream.getParticipantId();
}
}
/**
* Returns an array of the video dimensions, so that it keeps it's aspect
* ratio and fits available area with it's larger dimension. This method
* ensures that whole video will be visible and can leave empty areas.
*
* @return an array with 2 elements, the video width and the video height
*/
function getDesktopVideoSize(videoWidth,
videoHeight,
videoSpaceWidth,
videoSpaceHeight) {
let aspectRatio = videoWidth / videoHeight;
let availableWidth = Math.max(videoWidth, videoSpaceWidth);
let availableHeight = Math.max(videoHeight, videoSpaceHeight);
videoSpaceHeight -= FilmStrip.getFilmStripHeight();
if (availableWidth / aspectRatio >= videoSpaceHeight) {
availableHeight = videoSpaceHeight;
availableWidth = availableHeight * aspectRatio;
}
if (availableHeight * aspectRatio >= videoSpaceWidth) {
availableWidth = videoSpaceWidth;
availableHeight = availableWidth / aspectRatio;
}
return [ availableWidth, availableHeight ];
}
/**
* Returns an array of the video dimensions. It respects the
* VIDEO_LAYOUT_FIT config, to fit the video to the screen, by hiding some parts
* of it, or to fit it to the height or width.
*
* @param videoWidth the original video width
* @param videoHeight the original video height
* @param videoSpaceWidth the width of the video space
* @param videoSpaceHeight the height of the video space
* @return an array with 2 elements, the video width and the video height
*/
function getCameraVideoSize(videoWidth,
videoHeight,
videoSpaceWidth,
videoSpaceHeight) {
let aspectRatio = videoWidth / videoHeight;
let availableWidth = videoWidth;
let availableHeight = videoHeight;
if (interfaceConfig.VIDEO_LAYOUT_FIT == 'height') {
availableHeight = videoSpaceHeight;
availableWidth = availableHeight*aspectRatio;
}
else if (interfaceConfig.VIDEO_LAYOUT_FIT == 'width') {
availableWidth = videoSpaceWidth;
availableHeight = availableWidth/aspectRatio;
}
else if (interfaceConfig.VIDEO_LAYOUT_FIT == 'both') {
availableWidth = Math.max(videoWidth, videoSpaceWidth);
availableHeight = Math.max(videoHeight, videoSpaceHeight);
if (availableWidth / aspectRatio < videoSpaceHeight) {
availableHeight = videoSpaceHeight;
availableWidth = availableHeight * aspectRatio;
}
if (availableHeight * aspectRatio < videoSpaceWidth) {
availableWidth = videoSpaceWidth;
availableHeight = availableWidth / aspectRatio;
}
}
return [ availableWidth, availableHeight ];
}
/**
* Returns an array of the video horizontal and vertical indents,
* so that if fits its parent.
*
* @return an array with 2 elements, the horizontal indent and the vertical
* indent
*/
function getCameraVideoPosition(videoWidth,
videoHeight,
videoSpaceWidth,
videoSpaceHeight) {
// Parent height isn't completely calculated when we position the video in
// full screen mode and this is why we use the screen height in this case.
// Need to think it further at some point and implement it properly.
if (UIUtil.isFullScreen()) {
videoSpaceHeight = window.innerHeight;
}
let horizontalIndent = (videoSpaceWidth - videoWidth) / 2;
let verticalIndent = (videoSpaceHeight - videoHeight) / 2;
return { horizontalIndent, verticalIndent };
}
/**
* Returns an array of the video horizontal and vertical indents.
* Centers horizontally and top aligns vertically.
*
* @return an array with 2 elements, the horizontal indent and the vertical
* indent
*/
function getDesktopVideoPosition(videoWidth, videoHeight, videoSpaceWidth) {
let horizontalIndent = (videoSpaceWidth - videoWidth) / 2;
let verticalIndent = 0;// Top aligned
return { horizontalIndent, verticalIndent };
}
/**
* Container for user video.
*/
export class VideoContainer extends LargeContainer {
// FIXME: With Temasys we have to re-select everytime
get $video () {
return $('#largeVideo');
}
get id () {
return getStreamOwnerId(this.stream);
}
constructor (onPlay, emitter) {
super();
this.stream = null;
this.videoType = null;
this.localFlipX = true;
this.emitter = emitter;
this.isVisible = false;
/**
* Flag indicates whether or not the avatar is currently displayed.
* @type {boolean}
*/
this.avatarDisplayed = false;
this.$avatar = $('#dominantSpeaker');
/**
* A jQuery selector of the remote connection message.
* @type {jQuery|HTMLElement}
*/
this.$remoteConnectionMessage = $('#remoteConnectionMessage');
/**
* Indicates whether or not the video stream attached to the video
* element has started(which means that there is any image rendered
* even if the video is stalled).
* @type {boolean}
*/
this.wasVideoRendered = false;
this.$wrapper = $('#largeVideoWrapper');
this.avatarHeight = $("#dominantSpeakerAvatar").height();
var onPlayCallback = function (event) {
if (typeof onPlay === 'function') {
onPlay(event);
}
this.wasVideoRendered = true;
}.bind(this);
// This does not work with Temasys plugin - has to be a property to be
// copied between new <object> elements
//this.$video.on('play', onPlay);
this.$video[0].onplay = onPlayCallback;
}
/**
* Enables a filter on the video which indicates that there are some
* problems with the local media connection.
*
* @param {boolean} enable <tt>true</tt> if the filter is to be enabled or
* <tt>false</tt> otherwise.
*/
enableLocalConnectionProblemFilter (enable) {
this.$video.toggleClass("videoProblemFilter", enable);
}
/**
* Get size of video element.
* @returns {{width, height}}
*/
getStreamSize () {
let video = this.$video[0];
return {
width: video.videoWidth,
height: video.videoHeight
};
}
/**
* Calculate optimal video size for specified container size.
* @param {number} containerWidth container width
* @param {number} containerHeight container height
* @returns {{availableWidth, availableHeight}}
*/
getVideoSize (containerWidth, containerHeight) {
let { width, height } = this.getStreamSize();
if (this.stream && this.isScreenSharing()) {
return getDesktopVideoSize( width,
height,
containerWidth,
containerHeight);
} else {
return getCameraVideoSize( width,
height,
containerWidth,
containerHeight);
}
}
/**
* Calculate optimal video position (offset for top left corner)
* for specified video size and container size.
* @param {number} width video width
* @param {number} height video height
* @param {number} containerWidth container width
* @param {number} containerHeight container height
* @returns {{horizontalIndent, verticalIndent}}
*/
getVideoPosition (width, height, containerWidth, containerHeight) {
if (this.stream && this.isScreenSharing()) {
return getDesktopVideoPosition( width,
height,
containerWidth,
containerHeight);
} else {
return getCameraVideoPosition( width,
height,
containerWidth,
containerHeight);
}
}
/**
* Update position of the remote connection message which describes that
* the remote user is having connectivity issues.
*/
positionRemoteConnectionMessage () {
if (this.avatarDisplayed) {
let $avatarImage = $("#dominantSpeakerAvatar");
this.$remoteConnectionMessage.css(
'top',
$avatarImage.offset().top + $avatarImage.height() + 10);
} else {
let height = this.$remoteConnectionMessage.height();
let parentHeight = this.$remoteConnectionMessage.parent().height();
this.$remoteConnectionMessage.css(
'top', (parentHeight/2) - (height/2));
}
let width = this.$remoteConnectionMessage.width();
let parentWidth = this.$remoteConnectionMessage.parent().width();
this.$remoteConnectionMessage.css(
'left', ((parentWidth/2) - (width/2)));
}
resize (containerWidth, containerHeight, animate = false) {
let [width, height]
= this.getVideoSize(containerWidth, containerHeight);
let { horizontalIndent, verticalIndent }
= this.getVideoPosition(width, height,
containerWidth, containerHeight);
// update avatar position
let top = containerHeight / 2 - this.avatarHeight / 4 * 3;
this.$avatar.css('top', top);
this.positionRemoteConnectionMessage();
this.$wrapper.animate({
width: width,
height: height,
top: verticalIndent,
bottom: verticalIndent,
left: horizontalIndent,
right: horizontalIndent
}, {
queue: false,
duration: animate ? 500 : 0
});
}
/**
* Update video stream.
* @param {JitsiTrack?} stream new stream
* @param {string} videoType video type
*/
setStream (stream, videoType) {
if (this.stream === stream) {
return;
} else {
// The stream has changed, so the image will be lost on detach
this.wasVideoRendered = false;
}
// detach old stream
if (this.stream) {
this.stream.detach(this.$video[0]);
}
this.stream = stream;
this.videoType = videoType;
if (!stream) {
return;
}
stream.attach(this.$video[0]);
let flipX = stream.isLocal() && this.localFlipX;
this.$video.css({
transform: flipX ? 'scaleX(-1)' : 'none'
});
}
/**
* Changes the flipX state of the local video.
* @param val {boolean} true if flipped.
*/
setLocalFlipX(val) {
this.localFlipX = val;
if(!this.$video || !this.stream || !this.stream.isLocal())
return;
this.$video.css({
transform: this.localFlipX ? 'scaleX(-1)' : 'none'
});
}
/**
* Check if current video stream is screen sharing.
* @returns {boolean}
*/
isScreenSharing () {
return this.videoType === 'desktop';
}
/**
* Show or hide user avatar.
* @param {boolean} show
*/
showAvatar (show) {
// TO FIX: Video background need to be black, so that we don't have a
// flickering effect when scrolling between videos and have the screen
// move to grey before going back to video. Avatars though can have the
// default background set.
// In order to fix this code we need to introduce video background or
// find a workaround for the video flickering.
$("#largeVideoContainer").css("background",
(show) ? interfaceConfig.DEFAULT_BACKGROUND : "#000");
this.$avatar.css("visibility", show ? "visible" : "hidden");
this.avatarDisplayed = show;
this.emitter.emit(UIEvents.LARGE_VIDEO_AVATAR_DISPLAYED, show);
}
/**
* Indicates that the remote user who is currently displayed by this video
* container is having connectivity issues.
*
* @param {boolean} show <tt>true</tt> to show or <tt>false</tt> to hide
* the indication.
*/
showRemoteConnectionProblemIndicator (show) {
this.$video.toggleClass("remoteVideoProblemFilter", show);
this.$avatar.toggleClass("remoteVideoProblemFilter", show);
}
// 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.$wrapper.css('visibility', 'visible').fadeTo(
FADE_DURATION_MS,
1,
() => {
this.isVisible = true;
resolve();
}
);
});
}
hide () {
// as the container is hidden/replaced by another container
// hide its avatar
this.showAvatar(false);
// its already hidden
if (!this.isVisible) {
return Promise.resolve();
}
return new Promise((resolve) => {
this.$wrapper.fadeTo(FADE_DURATION_MS, 0, () => {
this.$wrapper.css('visibility', 'hidden');
this.isVisible = false;
resolve();
});
});
}
/**
* @return {boolean} switch on dominant speaker event if on stage.
*/
stayOnStage () {
return false;
}
}