jiti-meet/videolayout.js

1423 lines
50 KiB
JavaScript

var VideoLayout = (function (my) {
var preMuted = false;
var currentDominantSpeaker = null;
var lastNCount = config.channelLastN;
var lastNEndpointsCache = [];
var largeVideoNewSrc = '';
my.changeLocalAudio = function(stream) {
connection.jingle.localAudio = stream;
RTC.attachMediaStream($('#localAudio'), stream);
document.getElementById('localAudio').autoplay = true;
document.getElementById('localAudio').volume = 0;
if (preMuted) {
toggleAudio();
preMuted = false;
}
};
my.changeLocalVideo = function(stream, flipX) {
connection.jingle.localVideo = stream;
var localVideo = document.createElement('video');
localVideo.id = 'localVideo_' + stream.id;
localVideo.autoplay = true;
localVideo.volume = 0; // is it required if audio is separated ?
localVideo.oncontextmenu = function () { return false; };
var localVideoContainer = document.getElementById('localVideoWrapper');
localVideoContainer.appendChild(localVideo);
// Set default display name.
setDisplayName('localVideoContainer');
AudioLevels.updateAudioLevelCanvas();
var localVideoSelector = $('#' + localVideo.id);
// Add click handler to both video and video wrapper elements in case
// there's no video.
localVideoSelector.click(function () {
VideoLayout.handleVideoThumbClicked(localVideo.src);
});
$('#localVideoContainer').click(function () {
VideoLayout.handleVideoThumbClicked(localVideo.src);
});
// Add hover handler
$('#localVideoContainer').hover(
function() {
VideoLayout.showDisplayName('localVideoContainer', true);
},
function() {
if (!VideoLayout.isLargeVideoVisible()
|| localVideo.src !== $('#largeVideo').attr('src'))
VideoLayout.showDisplayName('localVideoContainer', false);
}
);
// Add stream ended handler
stream.onended = function () {
localVideoContainer.removeChild(localVideo);
VideoLayout.updateRemovedVideo(localVideo.src);
};
// Flip video x axis if needed
flipXLocalVideo = flipX;
if (flipX) {
localVideoSelector.addClass("flipVideoX");
}
// Attach WebRTC stream
RTC.attachMediaStream(localVideoSelector, stream);
localVideoSrc = localVideo.src;
VideoLayout.updateLargeVideo(localVideoSrc, 0);
};
/**
* Checks if removed video is currently displayed and tries to display
* another one instead.
* @param removedVideoSrc src stream identifier of the video.
*/
my.updateRemovedVideo = function(removedVideoSrc) {
if (removedVideoSrc === $('#largeVideo').attr('src')) {
// this is currently displayed as large
// pick the last visible video in the row
// if nobody else is left, this picks the local video
var pick
= $('#remoteVideos>span[id!="mixedstream"]:visible:last>video')
.get(0);
if (!pick) {
console.info("Last visible video no longer exists");
pick = $('#remoteVideos>span[id!="mixedstream"]>video').get(0);
if (!pick || !pick.src) {
// Try local video
console.info("Fallback to local video...");
pick = $('#remoteVideos>span>span>video').get(0);
}
}
// mute if localvideo
if (pick) {
VideoLayout.updateLargeVideo(pick.src, pick.volume);
} else {
console.warn("Failed to elect large video");
}
}
};
/**
* Updates the large video with the given new video source.
*/
my.updateLargeVideo = function(newSrc, vol) {
console.log('hover in', newSrc);
if ($('#largeVideo').attr('src') != newSrc) {
largeVideoNewSrc = newSrc;
var isVisible = $('#largeVideo').is(':visible');
// we need this here because after the fade the videoSrc may have
// changed.
var isDesktop = isVideoSrcDesktop(newSrc);
var userJid = getJidFromVideoSrc(newSrc);
// we want the notification to trigger even if userJid is undefined,
// or null.
$(document).trigger("selectedendpointchanged", [userJid]);
$('#largeVideo').fadeOut(300, function () {
var oldSrc = $(this).attr('src');
$(this).attr('src', newSrc);
// Screen stream is already rotated
var flipX = (newSrc === localVideoSrc) && flipXLocalVideo;
var videoTransform = document.getElementById('largeVideo')
.style.webkitTransform;
if (flipX && videoTransform !== 'scaleX(-1)') {
document.getElementById('largeVideo').style.webkitTransform
= "scaleX(-1)";
}
else if (!flipX && videoTransform === 'scaleX(-1)') {
document.getElementById('largeVideo').style.webkitTransform
= "none";
}
// Change the way we'll be measuring and positioning large video
getVideoSize = isDesktop
? getDesktopVideoSize
: getCameraVideoSize;
getVideoPosition = isDesktop
? getDesktopVideoPosition
: getCameraVideoPosition;
if (isVisible) {
// Only if the large video is currently visible.
// Disable previous dominant speaker video.
var oldJid = getJidFromVideoSrc(oldSrc);
if (oldJid) {
var oldResourceJid = Strophe.getResourceFromJid(oldJid);
VideoLayout.enableDominantSpeaker(oldResourceJid, false);
}
// Enable new dominant speaker in the remote videos section.
var userJid = getJidFromVideoSrc(newSrc);
if (userJid)
{
var resourceJid = Strophe.getResourceFromJid(userJid);
VideoLayout.enableDominantSpeaker(resourceJid, true);
}
$(this).fadeIn(300);
}
});
}
};
my.handleVideoThumbClicked = function(videoSrc) {
// Restore style for previously focused video
var focusJid = getJidFromVideoSrc(focusedVideoSrc);
var oldContainer = getParticipantContainer(focusJid);
if (oldContainer) {
oldContainer.removeClass("videoContainerFocused");
}
// Unlock current focused.
if (focusedVideoSrc === videoSrc)
{
focusedVideoSrc = null;
var dominantSpeakerVideo = null;
// Enable the currently set dominant speaker.
if (currentDominantSpeaker) {
dominantSpeakerVideo
= $('#participant_' + currentDominantSpeaker + '>video')
.get(0);
if (dominantSpeakerVideo) {
VideoLayout.updateLargeVideo(dominantSpeakerVideo.src, 1);
}
}
return;
}
// Lock new video
focusedVideoSrc = videoSrc;
// Update focused/pinned interface.
var userJid = getJidFromVideoSrc(videoSrc);
if (userJid)
{
var container = getParticipantContainer(userJid);
container.addClass("videoContainerFocused");
}
// Triggers a "video.selected" event. The "false" parameter indicates
// this isn't a prezi.
$(document).trigger("video.selected", [false]);
VideoLayout.updateLargeVideo(videoSrc, 1);
$('audio').each(function (idx, el) {
if (el.id.indexOf('mixedmslabel') !== -1) {
el.volume = 0;
el.volume = 1;
}
});
};
/**
* Positions the large video.
*
* @param videoWidth the stream video width
* @param videoHeight the stream video height
*/
my.positionLarge = function (videoWidth, videoHeight) {
var videoSpaceWidth = $('#videospace').width();
var videoSpaceHeight = window.innerHeight;
var videoSize = getVideoSize(videoWidth,
videoHeight,
videoSpaceWidth,
videoSpaceHeight);
var largeVideoWidth = videoSize[0];
var largeVideoHeight = videoSize[1];
var videoPosition = getVideoPosition(largeVideoWidth,
largeVideoHeight,
videoSpaceWidth,
videoSpaceHeight);
var horizontalIndent = videoPosition[0];
var verticalIndent = videoPosition[1];
positionVideo($('#largeVideo'),
largeVideoWidth,
largeVideoHeight,
horizontalIndent, verticalIndent);
};
/**
* Shows/hides the large video.
*/
my.setLargeVideoVisible = function(isVisible) {
var largeVideoJid = getJidFromVideoSrc($('#largeVideo').attr('src'));
var resourceJid = Strophe.getResourceFromJid(largeVideoJid);
if (isVisible) {
$('#largeVideo').css({visibility: 'visible'});
$('.watermark').css({visibility: 'visible'});
VideoLayout.enableDominantSpeaker(resourceJid, true);
}
else {
$('#largeVideo').css({visibility: 'hidden'});
$('.watermark').css({visibility: 'hidden'});
VideoLayout.enableDominantSpeaker(resourceJid, false);
}
};
/**
* Indicates if the large video is currently visible.
*
* @return <tt>true</tt> if visible, <tt>false</tt> - otherwise
*/
my.isLargeVideoVisible = function() {
return $('#largeVideo').is(':visible');
};
/**
* Checks if container for participant identified by given peerJid exists
* in the document and creates it eventually.
*
* @param peerJid peer Jid to check.
*
* @return Returns <tt>true</tt> if the peer container exists,
* <tt>false</tt> - otherwise
*/
my.ensurePeerContainerExists = function(peerJid) {
ContactList.ensureAddContact(peerJid);
var resourceJid = Strophe.getResourceFromJid(peerJid);
var videoSpanId = 'participant_' + resourceJid;
if ($('#' + videoSpanId).length > 0) {
// If there's been a focus change, make sure we add focus related
// interface!!
if (focus && $('#remote_popupmenu_' + resourceJid).length <= 0)
addRemoteVideoMenu( peerJid,
document.getElementById(videoSpanId));
}
else {
var container
= VideoLayout.addRemoteVideoContainer(peerJid, videoSpanId);
// Set default display name.
setDisplayName(videoSpanId);
var nickfield = document.createElement('span');
nickfield.className = "nick";
nickfield.appendChild(document.createTextNode(resourceJid));
container.appendChild(nickfield);
// In case this is not currently in the last n we don't show it.
if (lastNCount
&& lastNCount > 0
&& $('#remoteVideos>span').length >= lastNCount + 2) {
showPeerContainer(resourceJid, false);
}
else
VideoLayout.resizeThumbnails();
}
};
my.addRemoteVideoContainer = function(peerJid, spanId) {
var container = document.createElement('span');
container.id = spanId;
container.className = 'videocontainer';
var remotes = document.getElementById('remoteVideos');
// If the peerJid is null then this video span couldn't be directly
// associated with a participant (this could happen in the case of prezi).
if (focus && peerJid != null)
addRemoteVideoMenu(peerJid, container);
remotes.appendChild(container);
AudioLevels.updateAudioLevelCanvas(peerJid);
return container;
};
/**
* Creates an audio or video stream element.
*/
my.createStreamElement = function (sid, stream) {
var isVideo = stream.getVideoTracks().length > 0;
var element = isVideo
? document.createElement('video')
: document.createElement('audio');
var id = (isVideo ? 'remoteVideo_' : 'remoteAudio_')
+ sid + '_' + stream.id;
element.id = id;
element.autoplay = true;
element.oncontextmenu = function () { return false; };
return element;
};
my.addRemoteStreamElement
= function (container, sid, stream, peerJid, thessrc) {
var newElementId = null;
var isVideo = stream.getVideoTracks().length > 0;
if (container) {
var streamElement = VideoLayout.createStreamElement(sid, stream);
newElementId = streamElement.id;
container.appendChild(streamElement);
var sel = $('#' + newElementId);
sel.hide();
// If the container is currently visible we attach the stream.
if (!isVideo
|| (container.offsetParent !== null && isVideo)) {
var simulcast = new Simulcast();
var videoStream = simulcast.getReceivingVideoStream(stream);
RTC.attachMediaStream(sel, videoStream);
if (isVideo)
waitForRemoteVideo(sel, thessrc, stream);
}
stream.onended = function () {
console.log('stream ended', this);
VideoLayout.removeRemoteStreamElement(stream, container);
if (peerJid)
ContactList.removeContact(peerJid);
};
// Add click handler.
container.onclick = function (event) {
/*
* FIXME It turns out that videoThumb may not exist (if there is
* no actual video).
*/
var videoThumb = $('#' + container.id + '>video').get(0);
if (videoThumb)
VideoLayout.handleVideoThumbClicked(videoThumb.src);
event.preventDefault();
return false;
};
// Add hover handler
$(container).hover(
function() {
VideoLayout.showDisplayName(container.id, true);
},
function() {
var videoSrc = null;
if ($('#' + container.id + '>video')
&& $('#' + container.id + '>video').length > 0) {
videoSrc = $('#' + container.id + '>video').get(0).src;
}
// If the video has been "pinned" by the user we want to
// keep the display name on place.
if (!VideoLayout.isLargeVideoVisible()
|| videoSrc !== $('#largeVideo').attr('src'))
VideoLayout.showDisplayName(container.id, false);
}
);
}
return newElementId;
};
/**
* Removes the remote stream element corresponding to the given stream and
* parent container.
*
* @param stream the stream
* @param container
*/
my.removeRemoteStreamElement = function (stream, container) {
if (!container)
return;
var select = null;
var removedVideoSrc = null;
if (stream.getVideoTracks().length > 0) {
select = $('#' + container.id + '>video');
removedVideoSrc = select.get(0).src;
}
else
select = $('#' + container.id + '>audio');
// Remove video source from the mapping.
delete videoSrcToSsrc[removedVideoSrc];
// Mark video as removed to cancel waiting loop(if video is removed
// before has started)
select.removed = true;
select.remove();
var audioCount = $('#' + container.id + '>audio').length;
var videoCount = $('#' + container.id + '>video').length;
if (!audioCount && !videoCount) {
console.log("Remove whole user", container.id);
// Remove whole container
container.remove();
Util.playSoundNotification('userLeft');
VideoLayout.resizeThumbnails();
}
if (removedVideoSrc)
VideoLayout.updateRemovedVideo(removedVideoSrc);
};
/**
* Show/hide peer container for the given resourceJid.
*/
function showPeerContainer(resourceJid, isShow) {
var peerContainer = $('#participant_' + resourceJid);
if (!peerContainer)
return;
if (!peerContainer.is(':visible') && isShow)
peerContainer.show();
else if (peerContainer.is(':visible') && !isShow)
peerContainer.hide();
};
/**
* Sets the display name for the given video span id.
*/
function setDisplayName(videoSpanId, displayName) {
var nameSpan = $('#' + videoSpanId + '>span.displayname');
var defaultLocalDisplayName = "Me";
// If we already have a display name for this video.
if (nameSpan.length > 0) {
var nameSpanElement = nameSpan.get(0);
if (nameSpanElement.id === 'localDisplayName' &&
$('#localDisplayName').text() !== displayName) {
if (displayName && displayName.length > 0)
$('#localDisplayName').text(displayName + ' (me)');
else
$('#localDisplayName').text(defaultLocalDisplayName);
} else {
if (displayName && displayName.length > 0)
$('#' + videoSpanId + '_name').text(displayName);
else
$('#' + videoSpanId + '_name').text(interfaceConfig.DEFAULT_REMOTE_DISPLAY_NAME);
}
} else {
var editButton = null;
nameSpan = document.createElement('span');
nameSpan.className = 'displayname';
$('#' + videoSpanId)[0].appendChild(nameSpan);
if (videoSpanId === 'localVideoContainer') {
editButton = createEditDisplayNameButton();
nameSpan.innerText = defaultLocalDisplayName;
}
else {
nameSpan.innerText = interfaceConfig.DEFAULT_REMOTE_DISPLAY_NAME;
}
if (displayName && displayName.length > 0) {
nameSpan.innerText = displayName;
}
if (!editButton) {
nameSpan.id = videoSpanId + '_name';
} else {
nameSpan.id = 'localDisplayName';
$('#' + videoSpanId)[0].appendChild(editButton);
var editableText = document.createElement('input');
editableText.className = 'displayname';
editableText.type = 'text';
editableText.id = 'editDisplayName';
if (displayName && displayName.length) {
editableText.value
= displayName.substring(0, displayName.indexOf(' (me)'));
}
editableText.setAttribute('style', 'display:none;');
editableText.setAttribute('placeholder', 'ex. Jane Pink');
$('#' + videoSpanId)[0].appendChild(editableText);
$('#localVideoContainer .displayname')
.bind("click", function (e) {
e.preventDefault();
$('#localDisplayName').hide();
$('#editDisplayName').show();
$('#editDisplayName').focus();
$('#editDisplayName').select();
var inputDisplayNameHandler = function (name) {
if (nickname !== name) {
nickname = name;
window.localStorage.displayname = nickname;
connection.emuc.addDisplayNameToPresence(nickname);
connection.emuc.sendPresence();
Chat.setChatConversationMode(true);
}
if (!$('#localDisplayName').is(":visible")) {
if (nickname)
$('#localDisplayName').text(nickname + " (me)");
else
$('#localDisplayName')
.text(defaultLocalDisplayName);
$('#localDisplayName').show();
}
$('#editDisplayName').hide();
};
$('#editDisplayName').one("focusout", function (e) {
inputDisplayNameHandler(this.value);
});
$('#editDisplayName').on('keydown', function (e) {
if (e.keyCode === 13) {
e.preventDefault();
inputDisplayNameHandler(this.value);
}
});
});
}
}
};
/**
* Shows/hides the display name on the remote video.
* @param videoSpanId the identifier of the video span element
* @param isShow indicates if the display name should be shown or hidden
*/
my.showDisplayName = function(videoSpanId, isShow) {
var nameSpan = $('#' + videoSpanId + '>span.displayname').get(0);
if (isShow) {
if (nameSpan && nameSpan.innerHTML && nameSpan.innerHTML.length)
nameSpan.setAttribute("style", "display:inline-block;");
}
else {
if (nameSpan)
nameSpan.setAttribute("style", "display:none;");
}
};
/**
* Shows the presence status message for the given video.
*/
my.setPresenceStatus = function (videoSpanId, statusMsg) {
if (!$('#' + videoSpanId).length) {
// No container
return;
}
var statusSpan = $('#' + videoSpanId + '>span.status');
if (!statusSpan.length) {
//Add status span
statusSpan = document.createElement('span');
statusSpan.className = 'status';
statusSpan.id = videoSpanId + '_status';
$('#' + videoSpanId)[0].appendChild(statusSpan);
statusSpan = $('#' + videoSpanId + '>span.status');
}
// Display status
if (statusMsg && statusMsg.length) {
$('#' + videoSpanId + '_status').text(statusMsg);
statusSpan.get(0).setAttribute("style", "display:inline-block;");
}
else {
// Hide
statusSpan.get(0).setAttribute("style", "display:none;");
}
};
/**
* Shows a visual indicator for the focus of the conference.
* Currently if we're not the owner of the conference we obtain the focus
* from the connection.jingle.sessions.
*/
my.showFocusIndicator = function() {
if (focus !== null) {
var indicatorSpan = $('#localVideoContainer .focusindicator');
if (indicatorSpan.children().length === 0)
{
createFocusIndicatorElement(indicatorSpan[0]);
}
}
else if (Object.keys(connection.jingle.sessions).length > 0) {
// If we're only a participant the focus will be the only session we have.
var session
= connection.jingle.sessions
[Object.keys(connection.jingle.sessions)[0]];
var focusId
= 'participant_' + Strophe.getResourceFromJid(session.peerjid);
var focusContainer = document.getElementById(focusId);
if (!focusContainer) {
console.error("No focus container!");
return;
}
var indicatorSpan = $('#' + focusId + ' .focusindicator');
if (!indicatorSpan || indicatorSpan.length === 0) {
indicatorSpan = document.createElement('span');
indicatorSpan.className = 'focusindicator';
focusContainer.appendChild(indicatorSpan);
createFocusIndicatorElement(indicatorSpan);
}
}
};
/**
* Shows video muted indicator over small videos.
*/
my.showVideoIndicator = function(videoSpanId, isMuted) {
var videoMutedSpan = $('#' + videoSpanId + '>span.videoMuted');
if (isMuted === 'false') {
if (videoMutedSpan.length > 0) {
videoMutedSpan.remove();
}
}
else {
if(videoMutedSpan.length == 0) {
videoMutedSpan = document.createElement('span');
videoMutedSpan.className = 'videoMuted';
$('#' + videoSpanId)[0].appendChild(videoMutedSpan);
var mutedIndicator = document.createElement('i');
mutedIndicator.className = 'icon-camera-disabled';
Util.setTooltip(mutedIndicator,
"Participant has<br/>stopped the camera.",
"top");
videoMutedSpan.appendChild(mutedIndicator);
}
var audioMutedSpan = $('#' + videoSpanId + '>span.audioMuted');
videoMutedSpan = $('#' + videoSpanId + '>span.videoMuted');
videoMutedSpan.css({right: ((audioMutedSpan.length > 0)?'30px':'0px')});
}
};
/**
* Shows audio muted indicator over small videos.
*/
my.showAudioIndicator = function(videoSpanId, isMuted) {
var audioMutedSpan = $('#' + videoSpanId + '>span.audioMuted');
if (isMuted === 'false') {
if (audioMutedSpan.length > 0) {
audioMutedSpan.popover('hide');
audioMutedSpan.remove();
}
}
else {
if(audioMutedSpan.length > 0 )
return;
audioMutedSpan = document.createElement('span');
audioMutedSpan.className = 'audioMuted';
Util.setTooltip(audioMutedSpan,
"Participant is muted",
"top");
$('#' + videoSpanId)[0].appendChild(audioMutedSpan);
var mutedIndicator = document.createElement('i');
mutedIndicator.className = 'icon-mic-disabled';
audioMutedSpan.appendChild(mutedIndicator);
}
};
/**
* Resizes the large video container.
*/
my.resizeLargeVideoContainer = function () {
Chat.resizeChat();
var availableHeight = window.innerHeight;
var availableWidth = Util.getAvailableVideoWidth();
if (availableWidth < 0 || availableHeight < 0) return;
$('#videospace').width(availableWidth);
$('#videospace').height(availableHeight);
$('#largeVideoContainer').width(availableWidth);
$('#largeVideoContainer').height(availableHeight);
VideoLayout.resizeThumbnails();
};
/**
* Resizes thumbnails.
*/
my.resizeThumbnails = function() {
var videoSpaceWidth = $('#remoteVideos').width();
var thumbnailSize = VideoLayout.calculateThumbnailSize(videoSpaceWidth);
var width = thumbnailSize[0];
var height = thumbnailSize[1];
// size videos so that while keeping AR and max height, we have a
// nice fit
$('#remoteVideos').height(height);
$('#remoteVideos>span').width(width);
$('#remoteVideos>span').height(height);
$(document).trigger("remotevideo.resized", [width, height]);
};
/**
* Enables the dominant speaker UI.
*
* @param resourceJid the jid indicating the video element to
* activate/deactivate
* @param isEnable indicates if the dominant speaker should be enabled or
* disabled
*/
my.enableDominantSpeaker = function(resourceJid, isEnable) {
var displayName = resourceJid;
var nameSpan = $('#participant_' + resourceJid + '>span.displayname');
if (nameSpan.length > 0)
displayName = nameSpan.text();
console.log("UI enable dominant speaker",
displayName,
resourceJid,
isEnable);
var videoSpanId = null;
var videoContainerId = null;
if (resourceJid
=== Strophe.getResourceFromJid(connection.emuc.myroomjid)) {
videoSpanId = 'localVideoWrapper';
videoContainerId = 'localVideoContainer';
}
else {
videoSpanId = 'participant_' + resourceJid;
videoContainerId = videoSpanId;
}
videoSpan = document.getElementById(videoContainerId);
if (!videoSpan) {
console.error("No video element for jid", resourceJid);
return;
}
var video = $('#' + videoSpanId + '>video');
if (video && video.length > 0) {
if (isEnable) {
VideoLayout.showDisplayName(videoContainerId, true);
if (!videoSpan.classList.contains("dominantspeaker"))
videoSpan.classList.add("dominantspeaker");
video.css({visibility: 'hidden'});
}
else {
VideoLayout.showDisplayName(videoContainerId, false);
if (videoSpan.classList.contains("dominantspeaker"))
videoSpan.classList.remove("dominantspeaker");
video.css({visibility: 'visible'});
}
}
};
/**
* Gets the selector of video thumbnail container for the user identified by
* given <tt>userJid</tt>
* @param userJid user's Jid for whom we want to get the video container.
*/
function getParticipantContainer(userJid)
{
if (!userJid)
return null;
if (userJid === connection.emuc.myroomjid)
return $("#localVideoContainer");
else
return $("#participant_" + Strophe.getResourceFromJid(userJid));
}
/**
* Sets the size and position of the given video element.
*
* @param video the video element to position
* @param width the desired video width
* @param height the desired video height
* @param horizontalIndent the left and right indent
* @param verticalIndent the top and bottom indent
*/
function positionVideo(video,
width,
height,
horizontalIndent,
verticalIndent) {
video.width(width);
video.height(height);
video.css({ top: verticalIndent + 'px',
bottom: verticalIndent + 'px',
left: horizontalIndent + 'px',
right: horizontalIndent + 'px'});
}
/**
* Calculates the thumbnail size.
*
* @param videoSpaceWidth the width of the video space
*/
my.calculateThumbnailSize = function (videoSpaceWidth) {
// Calculate the available height, which is the inner window height minus
// 39px for the header minus 2px for the delimiter lines on the top and
// bottom of the large video, minus the 36px space inside the remoteVideos
// container used for highlighting shadow.
var availableHeight = 100;
var numvids = 0;
if (lastNCount && lastNCount > 0)
numvids = lastNCount + 1;
else
numvids = $('#remoteVideos>span:visible').length;
// Remove the 3px borders arround videos and border around the remote
// videos area and the 4 pixels between the local video and the others
//TODO: Find out where the 4 pixels come from and remove them
var availableWinWidth = videoSpaceWidth - 2 * 3 * numvids - 70 - 4;
var availableWidth = availableWinWidth / numvids;
var aspectRatio = 16.0 / 9.0;
var maxHeight = Math.min(160, availableHeight);
availableHeight = Math.min(maxHeight, availableWidth / aspectRatio);
if (availableHeight < availableWidth / aspectRatio) {
availableWidth = Math.floor(availableHeight * aspectRatio);
}
return [availableWidth, availableHeight];
};
/**
* 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) {
if (!videoWidth)
videoWidth = currentVideoWidth;
if (!videoHeight)
videoHeight = currentVideoHeight;
var aspectRatio = videoWidth / videoHeight;
var availableWidth = Math.max(videoWidth, videoSpaceWidth);
var availableHeight = Math.max(videoHeight, videoSpaceHeight);
videoSpaceHeight -= $('#remoteVideos').outerHeight();
if (availableWidth / aspectRatio >= videoSpaceHeight)
{
availableHeight = videoSpaceHeight;
availableWidth = availableHeight * aspectRatio;
}
if (availableHeight * aspectRatio >= videoSpaceWidth)
{
availableWidth = videoSpaceWidth;
availableHeight = availableWidth / aspectRatio;
}
return [availableWidth, availableHeight];
}
/**
* Creates the edit display name button.
*
* @returns the edit button
*/
function createEditDisplayNameButton() {
var editButton = document.createElement('a');
editButton.className = 'displayname';
Util.setTooltip(editButton,
'Click to edit your<br/>display name',
"top");
editButton.innerHTML = '<i class="fa fa-pencil"></i>';
return editButton;
}
/**
* Creates the element indicating the focus of the conference.
*
* @param parentElement the parent element where the focus indicator will
* be added
*/
function createFocusIndicatorElement(parentElement) {
var focusIndicator = document.createElement('i');
focusIndicator.className = 'fa fa-star';
parentElement.appendChild(focusIndicator);
Util.setTooltip(parentElement,
"The owner of<br/>this conference",
"top");
}
/**
* Updates the remote video menu.
*
* @param jid the jid indicating the video for which we're adding a menu.
* @param isMuted indicates the current mute state
*/
my.updateRemoteVideoMenu = function(jid, isMuted) {
var muteMenuItem
= $('#remote_popupmenu_'
+ Strophe.getResourceFromJid(jid)
+ '>li>a.mutelink');
var mutedIndicator = "<i class='icon-mic-disabled'></i>";
if (muteMenuItem.length) {
var muteLink = muteMenuItem.get(0);
if (isMuted === 'true') {
muteLink.innerHTML = mutedIndicator + ' Muted';
muteLink.className = 'mutelink disabled';
}
else {
muteLink.innerHTML = mutedIndicator + ' Mute';
muteLink.className = 'mutelink';
}
}
};
/**
* Returns the current dominant speaker resource jid.
*/
my.getDominantSpeakerResourceJid = function () {
return currentDominantSpeaker;
};
/**
* Returns the corresponding resource jid to the given peer container
* DOM element.
*
* @return the corresponding resource jid to the given peer container
* DOM element
*/
my.getPeerContainerResourceJid = function (containerElement) {
var i = containerElement.id.indexOf('participant_');
if (i >= 0)
return containerElement.id.substring(i + 12);
};
/**
* Adds the remote video menu element for the given <tt>jid</tt> in the
* given <tt>parentElement</tt>.
*
* @param jid the jid indicating the video for which we're adding a menu.
* @param parentElement the parent element where this menu will be added
*/
function addRemoteVideoMenu(jid, parentElement) {
var spanElement = document.createElement('span');
spanElement.className = 'remotevideomenu';
parentElement.appendChild(spanElement);
var menuElement = document.createElement('i');
menuElement.className = 'fa fa-angle-down';
menuElement.title = 'Remote user controls';
spanElement.appendChild(menuElement);
// <ul class="popupmenu">
// <li><a href="#">Mute</a></li>
// <li><a href="#">Eject</a></li>
// </ul>
var popupmenuElement = document.createElement('ul');
popupmenuElement.className = 'popupmenu';
popupmenuElement.id
= 'remote_popupmenu_' + Strophe.getResourceFromJid(jid);
spanElement.appendChild(popupmenuElement);
var muteMenuItem = document.createElement('li');
var muteLinkItem = document.createElement('a');
var mutedIndicator = "<i class='icon-mic-disabled'></i>";
if (!mutedAudios[jid]) {
muteLinkItem.innerHTML = mutedIndicator + 'Mute';
muteLinkItem.className = 'mutelink';
}
else {
muteLinkItem.innerHTML = mutedIndicator + ' Muted';
muteLinkItem.className = 'mutelink disabled';
}
muteLinkItem.onclick = function(){
if ($(this).attr('disabled') != undefined) {
event.preventDefault();
}
var isMute = !mutedAudios[jid];
connection.moderate.setMute(jid, isMute);
popupmenuElement.setAttribute('style', 'display:none;');
if (isMute) {
this.innerHTML = mutedIndicator + ' Muted';
this.className = 'mutelink disabled';
}
else {
this.innerHTML = mutedIndicator + ' Mute';
this.className = 'mutelink';
}
};
muteMenuItem.appendChild(muteLinkItem);
popupmenuElement.appendChild(muteMenuItem);
var ejectIndicator = "<i class='fa fa-eject'></i>";
var ejectMenuItem = document.createElement('li');
var ejectLinkItem = document.createElement('a');
ejectLinkItem.innerHTML = ejectIndicator + ' Kick out';
ejectLinkItem.onclick = function(){
connection.moderate.eject(jid);
popupmenuElement.setAttribute('style', 'display:none;');
};
ejectMenuItem.appendChild(ejectLinkItem);
popupmenuElement.appendChild(ejectMenuItem);
var paddingSpan = document.createElement('span');
paddingSpan.className = 'popupmenuPadding';
popupmenuElement.appendChild(paddingSpan);
}
/**
* On audio muted event.
*/
$(document).bind('audiomuted.muc', function (event, jid, isMuted) {
var videoSpanId = null;
if (jid === connection.emuc.myroomjid) {
videoSpanId = 'localVideoContainer';
} else {
VideoLayout.ensurePeerContainerExists(jid);
videoSpanId = 'participant_' + Strophe.getResourceFromJid(jid);
}
if (focus) {
mutedAudios[jid] = isMuted;
VideoLayout.updateRemoteVideoMenu(jid, isMuted);
}
if (videoSpanId)
VideoLayout.showAudioIndicator(videoSpanId, isMuted);
});
/**
* On video muted event.
*/
$(document).bind('videomuted.muc', function (event, jid, isMuted) {
var videoSpanId = null;
if (jid === connection.emuc.myroomjid) {
videoSpanId = 'localVideoContainer';
} else {
VideoLayout.ensurePeerContainerExists(jid);
videoSpanId = 'participant_' + Strophe.getResourceFromJid(jid);
}
if (videoSpanId)
VideoLayout.showVideoIndicator(videoSpanId, isMuted);
});
/**
* Display name changed.
*/
$(document).bind('displaynamechanged',
function (event, jid, displayName, status) {
if (jid === 'localVideoContainer'
|| jid === connection.emuc.myroomjid) {
setDisplayName('localVideoContainer',
displayName);
} else {
VideoLayout.ensurePeerContainerExists(jid);
setDisplayName(
'participant_' + Strophe.getResourceFromJid(jid),
displayName,
status);
}
});
/**
* On dominant speaker changed event.
*/
$(document).bind('dominantspeakerchanged', function (event, resourceJid) {
// We ignore local user events.
if (resourceJid
=== Strophe.getResourceFromJid(connection.emuc.myroomjid))
return;
// Update the current dominant speaker.
if (resourceJid !== currentDominantSpeaker) {
var oldSpeakerVideoSpanId = "participant_" + currentDominantSpeaker,
newSpeakerVideoSpanId = "participant_" + resourceJid;
if($("#" + oldSpeakerVideoSpanId + ">span.displayname").text() ===
interfaceConfig.DEFAULT_DOMINANT_SPEAKER_DISPLAY_NAME) {
setDisplayName(oldSpeakerVideoSpanId, null);
}
if($("#" + newSpeakerVideoSpanId + ">span.displayname").text() ===
interfaceConfig.DEFAULT_REMOTE_DISPLAY_NAME) {
setDisplayName(newSpeakerVideoSpanId,
interfaceConfig.DEFAULT_DOMINANT_SPEAKER_DISPLAY_NAME);
}
currentDominantSpeaker = resourceJid;
} else {
return;
}
// Obtain container for new dominant speaker.
var container = document.getElementById(
'participant_' + resourceJid);
// Local video will not have container found, but that's ok
// since we don't want to switch to local video.
if (container && !focusedVideoSrc)
{
var video = container.getElementsByTagName("video");
// Update the large video if the video source is already available,
// otherwise wait for the "videoactive.jingle" event.
if (video.length && video[0].currentTime > 0)
VideoLayout.updateLargeVideo(video[0].src);
}
});
/**
* On last N change event.
*
* @param event the event that notified us
* @param lastNEndpoints the list of last N endpoints
* @param endpointsEnteringLastN the list currently entering last N
* endpoints
*/
$(document).bind('lastnchanged', function ( event,
lastNEndpoints,
endpointsEnteringLastN,
stream) {
if (lastNCount !== lastNEndpoints.length)
lastNCount = lastNEndpoints.length;
lastNEndpointsCache = lastNEndpoints;
$('#remoteVideos>span').each(function( index, element ) {
var resourceJid = VideoLayout.getPeerContainerResourceJid(element);
if (resourceJid
&& lastNEndpoints.indexOf(resourceJid) < 0) {
console.log("Remove from last N", resourceJid);
showPeerContainer(resourceJid, false);
}
});
if (!endpointsEnteringLastN || endpointsEnteringLastN.length < 0)
endpointsEnteringLastN = lastNEndpoints;
if (endpointsEnteringLastN && endpointsEnteringLastN.length > 0) {
endpointsEnteringLastN.forEach(function (resourceJid) {
if (!$('#participant_' + resourceJid).is(':visible')) {
console.log("Add to last N", resourceJid);
showPeerContainer(resourceJid, true);
mediaStreams.some(function (mediaStream) {
if (mediaStream.peerjid
&& Strophe.getResourceFromJid(mediaStream.peerjid)
=== resourceJid
&& mediaStream.type === mediaStream.VIDEO_TYPE) {
var sel = $('#participant_' + resourceJid + '>video');
var simulcast = new Simulcast();
var videoStream = simulcast.getReceivingVideoStream(mediaStream.stream);
RTC.attachMediaStream(sel, videoStream);
waitForRemoteVideo(
sel,
mediaStream.ssrc,
mediaStream.stream);
return true;
}
});
}
});
}
});
$(document).bind('videoactive.jingle', function (event, videoelem) {
if (videoelem.attr('id').indexOf('mixedmslabel') === -1) {
// ignore mixedmslabela0 and v0
videoelem.show();
VideoLayout.resizeThumbnails();
var videoParent = videoelem.parent();
var parentResourceJid = null;
if (videoParent)
parentResourceJid
= VideoLayout.getPeerContainerResourceJid(videoParent[0]);
// Update the large video to the last added video only if there's no
// current dominant or focused speaker or update it to the current
// dominant speaker.
if ((!focusedVideoSrc && !VideoLayout.getDominantSpeakerResourceJid())
|| (parentResourceJid
&& VideoLayout.getDominantSpeakerResourceJid()
=== parentResourceJid)) {
VideoLayout.updateLargeVideo(videoelem.attr('src'), 1);
}
VideoLayout.showFocusIndicator();
}
});
$(document).bind('simulcastlayerstarted', function(event) {
var localVideoSelector = $('#' + 'localVideo_' + connection.jingle.localVideo.id);
var simulcast = new Simulcast();
var stream = simulcast.getLocalVideoStream();
// Attach WebRTC stream
RTC.attachMediaStream(localVideoSelector, stream);
localVideoSrc = $(localVideoSelector).attr('src');
});
$(document).bind('simulcastlayerstopped', function(event) {
var localVideoSelector = $('#' + 'localVideo_' + connection.jingle.localVideo.id);
var simulcast = new Simulcast();
var stream = simulcast.getLocalVideoStream();
// Attach WebRTC stream
RTC.attachMediaStream(localVideoSelector, stream);
localVideoSrc = $(localVideoSelector).attr('src');
});
/**
* On simulcast layers changed event.
*/
$(document).bind('simulcastlayerschanged', function (event, endpointSimulcastLayers) {
var simulcast = new Simulcast();
endpointSimulcastLayers.forEach(function (esl) {
var primarySSRC = esl.simulcastLayer.primarySSRC;
var msid = simulcast.getRemoteVideoStreamIdBySSRC(primarySSRC);
// Get session and stream from msid.
var session, electedStream;
var i, j, k;
if (connection.jingle) {
var keys = Object.keys(connection.jingle.sessions);
for (i = 0; i < keys.length; i++) {
var sid = keys[i];
if (electedStream) {
// stream found, stop.
break;
}
session = connection.jingle.sessions[sid];
if (session.remoteStreams) {
for (j = 0; j < session.remoteStreams.length; j++) {
var remoteStream = session.remoteStreams[j];
if (electedStream) {
// stream found, stop.
break;
}
var tracks = remoteStream.getVideoTracks();
if (tracks) {
for (k = 0; k < tracks.length; k++) {
var track = tracks[k];
if (msid === [remoteStream.id, track.id].join(' ')) {
electedStream = new webkitMediaStream([track]);
// stream found, stop.
break;
}
}
}
}
}
}
}
if (session && electedStream) {
console.info('Switching simulcast substream.');
console.info([esl, primarySSRC, msid, session, electedStream]);
var msidParts = msid.split(' ');
var selRemoteVideo = $(['#', 'remoteVideo_', session.sid, '_', msidParts[0]].join(''));
var updateLargeVideo = (ssrc2jid[videoSrcToSsrc[selRemoteVideo.attr('src')]]
== ssrc2jid[videoSrcToSsrc[largeVideoNewSrc]]);
var updateFocusedVideoSrc = (selRemoteVideo.attr('src') == focusedVideoSrc);
var electedStreamUrl = webkitURL.createObjectURL(electedStream);
selRemoteVideo.attr('src', electedStreamUrl);
videoSrcToSsrc[selRemoteVideo.attr('src')] = primarySSRC;
if (updateLargeVideo) {
VideoLayout.updateLargeVideo(electedStreamUrl);
}
if (updateFocusedVideoSrc) {
focusedVideoSrc = electedStreamUrl;
}
} else {
console.error('Could not find a stream or a session.');
}
});
});
return my;
}(VideoLayout || {}));