347 lines
12 KiB
JavaScript
347 lines
12 KiB
JavaScript
var Prezi = (function (my) {
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var preziPlayer = null;
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/**
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* Reloads the current presentation.
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*/
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my.reloadPresentation = function() {
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var iframe = document.getElementById(preziPlayer.options.preziId);
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iframe.src = iframe.src;
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};
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/**
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* Shows/hides a presentation.
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*/
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my.setPresentationVisible = function (visible) {
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var prezi = $('#presentation>iframe');
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if (visible) {
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// Trigger the video.selected event to indicate a change in the
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// large video.
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$(document).trigger("video.selected", [true]);
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$('#largeVideo').fadeOut(300);
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prezi.fadeIn(300, function() {
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prezi.css({opacity:'1'});
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ToolbarToggler.dockToolbar(true);
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VideoLayout.setLargeVideoVisible(false);
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});
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$('#activeSpeakerAvatar').css('visibility', 'hidden');
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}
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else {
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if (prezi.css('opacity') == '1') {
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prezi.fadeOut(300, function () {
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prezi.css({opacity:'0'});
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$('#reloadPresentation').css({display:'none'});
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$('#largeVideo').fadeIn(300, function() {
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VideoLayout.setLargeVideoVisible(true);
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ToolbarToggler.dockToolbar(false);
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});
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});
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}
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}
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};
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/**
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* Returns <tt>true</tt> if the presentation is visible, <tt>false</tt> -
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* otherwise.
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*/
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my.isPresentationVisible = function () {
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return ($('#presentation>iframe') != null
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&& $('#presentation>iframe').css('opacity') == 1);
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};
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/**
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* Opens the Prezi dialog, from which the user could choose a presentation
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* to load.
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*/
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my.openPreziDialog = function() {
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var myprezi = connection.emuc.getPrezi(connection.emuc.myroomjid);
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if (myprezi) {
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messageHandler.openTwoButtonDialog("Remove Prezi",
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"Are you sure you would like to remove your Prezi?",
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false,
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"Remove",
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function(e,v,m,f) {
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if(v) {
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connection.emuc.removePreziFromPresence();
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connection.emuc.sendPresence();
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}
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}
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);
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}
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else if (preziPlayer != null) {
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messageHandler.openTwoButtonDialog("Share a Prezi",
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"Another participant is already sharing a Prezi." +
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"This conference allows only one Prezi at a time.",
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false,
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"Ok",
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function(e,v,m,f) {
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$.prompt.close();
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}
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);
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}
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else {
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var openPreziState = {
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state0: {
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html: '<h2>Share a Prezi</h2>' +
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'<input id="preziUrl" type="text" ' +
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'placeholder="e.g. ' +
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'http://prezi.com/wz7vhjycl7e6/my-prezi" autofocus>',
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persistent: false,
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buttons: { "Share": true , "Cancel": false},
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defaultButton: 1,
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submit: function(e,v,m,f){
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e.preventDefault();
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if(v)
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{
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var preziUrl = document.getElementById('preziUrl');
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if (preziUrl.value)
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{
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var urlValue
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= encodeURI(Util.escapeHtml(preziUrl.value));
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if (urlValue.indexOf('http://prezi.com/') != 0
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&& urlValue.indexOf('https://prezi.com/') != 0)
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{
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$.prompt.goToState('state1');
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return false;
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}
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else {
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var presIdTmp = urlValue.substring(
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urlValue.indexOf("prezi.com/") + 10);
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if (!isAlphanumeric(presIdTmp)
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|| presIdTmp.indexOf('/') < 2) {
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$.prompt.goToState('state1');
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return false;
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}
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else {
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connection.emuc
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.addPreziToPresence(urlValue, 0);
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connection.emuc.sendPresence();
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$.prompt.close();
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}
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}
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}
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}
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else
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$.prompt.close();
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}
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},
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state1: {
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html: '<h2>Share a Prezi</h2>' +
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'Please provide a correct prezi link.',
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persistent: false,
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buttons: { "Back": true, "Cancel": false },
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defaultButton: 1,
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submit:function(e,v,m,f) {
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e.preventDefault();
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if(v==0)
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$.prompt.close();
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else
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$.prompt.goToState('state0');
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}
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}
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};
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var focusPreziUrl = function(e) {
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document.getElementById('preziUrl').focus();
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};
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messageHandler.openDialogWithStates(openPreziState, focusPreziUrl, focusPreziUrl);
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}
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};
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/**
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* A new presentation has been added.
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*
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* @param event the event indicating the add of a presentation
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* @param jid the jid from which the presentation was added
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* @param presUrl url of the presentation
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* @param currentSlide the current slide to which we should move
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*/
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var presentationAdded = function(event, jid, presUrl, currentSlide) {
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console.log("presentation added", presUrl);
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var presId = getPresentationId(presUrl);
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var elementId = 'participant_'
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+ Strophe.getResourceFromJid(jid)
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+ '_' + presId;
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// We explicitly don't specify the peer jid here, because we don't want
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// this video to be dealt with as a peer related one (for example we
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// don't want to show a mute/kick menu for this one, etc.).
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VideoLayout.addRemoteVideoContainer(null, elementId);
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VideoLayout.resizeThumbnails();
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var controlsEnabled = false;
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if (jid === connection.emuc.myroomjid)
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controlsEnabled = true;
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Prezi.setPresentationVisible(true);
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$('#largeVideoContainer').hover(
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function (event) {
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if (Prezi.isPresentationVisible()) {
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var reloadButtonRight = window.innerWidth
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- $('#presentation>iframe').offset().left
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- $('#presentation>iframe').width();
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$('#reloadPresentation').css({ right: reloadButtonRight,
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display:'inline-block'});
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}
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},
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function (event) {
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if (!Prezi.isPresentationVisible())
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$('#reloadPresentation').css({display:'none'});
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else {
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var e = event.toElement || event.relatedTarget;
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if (e && e.id != 'reloadPresentation' && e.id != 'header')
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$('#reloadPresentation').css({display:'none'});
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}
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});
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preziPlayer = new PreziPlayer(
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'presentation',
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{preziId: presId,
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width: getPresentationWidth(),
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height: getPresentationHeihgt(),
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controls: controlsEnabled,
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debug: true
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});
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$('#presentation>iframe').attr('id', preziPlayer.options.preziId);
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preziPlayer.on(PreziPlayer.EVENT_STATUS, function(event) {
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console.log("prezi status", event.value);
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if (event.value == PreziPlayer.STATUS_CONTENT_READY) {
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if (jid != connection.emuc.myroomjid)
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preziPlayer.flyToStep(currentSlide);
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}
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});
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preziPlayer.on(PreziPlayer.EVENT_CURRENT_STEP, function(event) {
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console.log("event value", event.value);
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connection.emuc.addCurrentSlideToPresence(event.value);
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connection.emuc.sendPresence();
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});
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$("#" + elementId).css( 'background-image',
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'url(../images/avatarprezi.png)');
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$("#" + elementId).click(
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function () {
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Prezi.setPresentationVisible(true);
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}
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);
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};
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/**
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* A presentation has been removed.
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*
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* @param event the event indicating the remove of a presentation
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* @param jid the jid for which the presentation was removed
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* @param the url of the presentation
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*/
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var presentationRemoved = function (event, jid, presUrl) {
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console.log('presentation removed', presUrl);
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var presId = getPresentationId(presUrl);
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Prezi.setPresentationVisible(false);
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$('#participant_'
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+ Strophe.getResourceFromJid(jid)
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+ '_' + presId).remove();
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$('#presentation>iframe').remove();
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if (preziPlayer != null) {
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preziPlayer.destroy();
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preziPlayer = null;
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}
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};
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/**
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* Indicates if the given string is an alphanumeric string.
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* Note that some special characters are also allowed (-, _ , /, &, ?, =, ;) for the
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* purpose of checking URIs.
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*/
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function isAlphanumeric(unsafeText) {
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var regex = /^[a-z0-9-_\/&\?=;]+$/i;
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return regex.test(unsafeText);
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}
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/**
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* Returns the presentation id from the given url.
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*/
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function getPresentationId (presUrl) {
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var presIdTmp = presUrl.substring(presUrl.indexOf("prezi.com/") + 10);
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return presIdTmp.substring(0, presIdTmp.indexOf('/'));
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}
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/**
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* Returns the presentation width.
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*/
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function getPresentationWidth() {
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var availableWidth = Util.getAvailableVideoWidth();
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var availableHeight = getPresentationHeihgt();
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var aspectRatio = 16.0 / 9.0;
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if (availableHeight < availableWidth / aspectRatio) {
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availableWidth = Math.floor(availableHeight * aspectRatio);
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}
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return availableWidth;
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}
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/**
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* Returns the presentation height.
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*/
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function getPresentationHeihgt() {
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var remoteVideos = $('#remoteVideos');
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return window.innerHeight - remoteVideos.outerHeight();
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}
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/**
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* Resizes the presentation iframe.
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*/
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function resize() {
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if ($('#presentation>iframe')) {
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$('#presentation>iframe').width(getPresentationWidth());
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$('#presentation>iframe').height(getPresentationHeihgt());
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}
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}
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/**
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* Presentation has been removed.
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*/
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$(document).bind('presentationremoved.muc', presentationRemoved);
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/**
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* Presentation has been added.
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*/
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$(document).bind('presentationadded.muc', presentationAdded);
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/*
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* Indicates presentation slide change.
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*/
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$(document).bind('gotoslide.muc', function (event, jid, presUrl, current) {
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if (preziPlayer && preziPlayer.getCurrentStep() != current) {
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preziPlayer.flyToStep(current);
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var animationStepsArray = preziPlayer.getAnimationCountOnSteps();
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for (var i = 0; i < parseInt(animationStepsArray[current]); i++) {
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preziPlayer.flyToStep(current, i);
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}
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}
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});
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/**
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* On video selected event.
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*/
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$(document).bind('video.selected', function (event, isPresentation) {
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if (!isPresentation && $('#presentation>iframe')) {
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Prezi.setPresentationVisible(false);
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}
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});
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$(window).resize(function () {
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resize();
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});
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return my;
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}(Prezi || {}));
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