jiti-meet/videolayout.js

845 lines
29 KiB
JavaScript

var VideoLayout = (function (my) {
var preMuted = false;
var currentActiveSpeaker = null;
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);
var localVideoSelector = $('#' + localVideo.id);
// Add click handler
localVideoSelector.click(function () {
VideoLayout.handleVideoThumbClicked(localVideo.src);
});
// Add hover handler
$('#localVideoContainer').hover(
function() {
VideoLayout.showDisplayName('localVideoContainer', true);
},
function() {
if (focusedVideoSrc !== localVideo.src)
VideoLayout.showDisplayName('localVideoContainer', false);
}
);
// Add stream ended handler
stream.onended = function () {
localVideoContainer.removeChild(localVideo);
VideoLayout.checkChangeLargeVideo(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.checkChangeLargeVideo = 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) {
// 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) {
var isVisible = $('#largeVideo').is(':visible');
$('#largeVideo').fadeOut(300, function () {
$(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
var isDesktop = isVideoSrcDesktop(newSrc);
getVideoSize = isDesktop
? getDesktopVideoSize
: getCameraVideoSize;
getVideoPosition = isDesktop
? getDesktopVideoPosition
: getCameraVideoPosition;
if (isVisible)
$(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");
VideoLayout.enableActiveSpeaker(
Strophe.getResourceFromJid(focusJid), false);
}
// Unlock
if (focusedVideoSrc === videoSrc)
{
focusedVideoSrc = null;
return;
}
// Lock new video
focusedVideoSrc = videoSrc;
var userJid = getJidFromVideoSrc(videoSrc);
if (userJid)
{
var container = getParticipantContainer(userJid);
container.addClass("videoContainerFocused");
var resourceJid = Strophe.getResourceFromJid(userJid);
VideoLayout.enableActiveSpeaker(resourceJid, true);
}
$(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) {
if (isVisible) {
$('#largeVideo').css({visibility: 'visible'});
$('.watermark').css({visibility: 'visible'});
}
else {
$('#largeVideo').css({visibility: 'hidden'});
$('.watermark').css({visibility: 'hidden'});
}
};
/**
* Checks if container for participant identified by given peerJid exists
* in the document and creates it eventually.
*
* @param peerJid peer Jid to check.
*/
my.ensurePeerContainerExists = function(peerJid) {
var peerResource = Strophe.getResourceFromJid(peerJid);
var videoSpanId = 'participant_' + peerResource;
if ($('#' + videoSpanId).length > 0) {
// If there's been a focus change, make sure we add focus related
// interface!!
if (focus && $('#remote_popupmenu_' + peerResource).length <= 0)
addRemoteVideoMenu( peerJid,
document.getElementById(videoSpanId));
return;
}
var container
= VideoLayout.addRemoteVideoContainer(peerJid, videoSpanId);
var nickfield = document.createElement('span');
nickfield.className = "nick";
nickfield.appendChild(document.createTextNode(peerResource));
container.appendChild(nickfield);
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);
return container;
};
/**
* Shows the display name for the given video.
*/
my.setDisplayName = function(videoSpanId, displayName) {
var nameSpan = $('#' + videoSpanId + '>span.displayname');
// 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) {
$('#localDisplayName').text(displayName);
} else {
$('#' + videoSpanId + '_name').text(displayName);
}
} else {
var editButton = null;
if (videoSpanId === 'localVideoContainer') {
editButton = createEditDisplayNameButton();
}
if (displayName.length) {
nameSpan = document.createElement('span');
nameSpan.className = 'displayname';
nameSpan.innerText = displayName;
$('#' + videoSpanId)[0].appendChild(nameSpan);
}
if (!editButton) {
nameSpan.id = videoSpanId + '_name';
} else {
nameSpan.id = 'localDisplayName';
$('#' + videoSpanId)[0].appendChild(editButton);
var editableText = document.createElement('input');
editableText.className = 'displayname';
editableText.id = 'editDisplayName';
if (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)");
$('#localDisplayName').show();
}
else {
$('#localDisplayName').text(nickname);
}
$('#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 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';
Util.setTooltip(indicatorSpan,
"The owner of<br/>this conference",
"top");
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 {
var audioMutedSpan = $('#' + videoSpanId + '>span.audioMuted');
videoMutedSpan = document.createElement('span');
videoMutedSpan.className = 'videoMuted';
if (audioMutedSpan) {
videoMutedSpan.right = '30px';
}
$('#' + 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);
}
};
/**
* 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.remove();
}
}
else {
var videoMutedSpan = $('#' + videoSpanId + '>span.videoMuted');
audioMutedSpan = document.createElement('span');
audioMutedSpan.className = 'audioMuted';
Util.setTooltip(audioMutedSpan,
"Participant is muted",
"top");
if (videoMutedSpan) {
audioMutedSpan.right = '30px';
}
$('#' + 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 thumbnailSize = calculateThumbnailSize();
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);
};
/**
* Enables the active speaker UI.
*
* @param resourceJid the jid indicating the video element to
* activate/deactivate
* @param isEnable indicates if the active speaker should be enabled or
* disabled
*/
my.enableActiveSpeaker = function(resourceJid, isEnable) {
console.log("Enable active speaker", resourceJid, isEnable);
var videoSpanId = null;
if (resourceJid
=== Strophe.getResourceFromJid(connection.emuc.myroomjid))
videoSpanId = 'localVideoWrapper';
else
videoSpanId = 'participant_' + resourceJid;
videoSpan = document.getElementById(videoSpanId);
if (!videoSpan) {
console.error("No video element for jid", resourceJid);
return;
}
// If there's an active speaker (automatically) selected we have to
// disable this state and update the current active speaker.
if (isEnable) {
if (currentActiveSpeaker) {
var oldSpeaker = currentActiveSpeaker;
setTimeout(function () {
VideoLayout.enableActiveSpeaker(oldSpeaker, false);
}, 200);
}
currentActiveSpeaker = resourceJid;
}
else if (resourceJid === currentActiveSpeaker)
currentActiveSpeaker = null;
var video = $('#' + videoSpanId + '>video');
if (video && video.length > 0) {
var videoElement = video.get(0);
if (isEnable) {
if (!videoElement.classList.contains("activespeaker"))
videoElement.classList.add("activespeaker");
VideoLayout.showDisplayName(videoSpanId, true);
}
else {
VideoLayout.showDisplayName(videoSpanId, false);
if (videoElement.classList.contains("activespeaker"))
videoElement.classList.remove("activespeaker");
}
}
};
/**
* 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.
*/
var calculateThumbnailSize = function () {
// 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 = $('#remoteVideos>span:visible').length;
// Remove the 1px borders arround videos and the chat width.
var availableWinWidth = $('#remoteVideos').width() - 2 * numvids - 50;
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);
}
/**
* 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
= $('#remote_popupmenu_'
+ Strophe.getResourceFromJid(jid)
+ '>li>a.mutelink');
var mutedIndicator = "<i class='icon-mic-disabled'></i>";
if (muteMenuItem.length) {
var muteLink = muteMenuItem.get(0);
if (isMuted === 'true') {
muteLink.innerHTML = mutedIndicator + ' Muted';
muteLink.className = 'mutelink disabled';
}
else {
muteLink.innerHTML = mutedIndicator + ' Mute';
muteLink.className = 'mutelink';
}
}
};
/**
* Adds the remote video menu element for the given <tt>jid</tt> in the
* given <tt>parentElement</tt>.
*
* @param jid the jid indicating the video for which we're adding a menu.
* @param parentElement the parent element where this menu will be added
*/
function addRemoteVideoMenu(jid, parentElement) {
var spanElement = document.createElement('span');
spanElement.className = 'remotevideomenu';
parentElement.appendChild(spanElement);
var menuElement = document.createElement('i');
menuElement.className = 'fa fa-angle-down';
menuElement.title = 'Remote user controls';
spanElement.appendChild(menuElement);
// <ul class="popupmenu">
// <li><a href="#">Mute</a></li>
// <li><a href="#">Eject</a></li>
// </ul>
var popupmenuElement = document.createElement('ul');
popupmenuElement.className = 'popupmenu';
popupmenuElement.id
= 'remote_popupmenu_' + Strophe.getResourceFromJid(jid);
spanElement.appendChild(popupmenuElement);
var muteMenuItem = document.createElement('li');
var muteLinkItem = document.createElement('a');
var mutedIndicator = "<i class='icon-mic-disabled'></i>";
if (!mutedAudios[jid]) {
muteLinkItem.innerHTML = mutedIndicator + 'Mute';
muteLinkItem.className = 'mutelink';
}
else {
muteLinkItem.innerHTML = mutedIndicator + ' Muted';
muteLinkItem.className = 'mutelink disabled';
}
muteLinkItem.onclick = function(){
if ($(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);
}
$(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);
});
$(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);
});
return my;
}(VideoLayout || {}));