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Uncaught TypeError: this.timestamp is not a function

I'm a bit confused, don't know what is going wrong.
Maybe a bit of an explanation about this and it's usage in object methods would be awesome.
I saw that i should use this as global variable but that gives me more errors.
Here is my code:
$(function () {
var options = {
seeking: false,
stopped: true,
sliderOptions: {
imagesLoaded: true,
contain: true,
wrapAround: true,
cellAlign: 'left',
setGallerySize: false,
accessibility: true,
prevNextButtons: false,
pageDots: false,
selectedAttraction: 0.02,
hash: true
}
}
var CH = {
init: function () {
this.playerEvents()
this.bind()
this.progress()
},
playerEvents: function () {
slider.on('select.flickity', function (event, index) {
$('#audio').attr('src', 'assets/mp3/' + $('.slide').eq(index).attr('id') + '.mp3')
$('#id div, #title div').hide()
$('#id div').eq(index).show()
$('#title div').eq(index).show()
$('#playpause').text('PLAY')
}).on('change.flickity', function (event, index) {
options.stopped == false ? (audio.play(), $('#playpause').text('PAUSE')) : (audio.pause(), $('#playpause').text('PLAY'))
}).on('staticClick.flickity', function (event, pointer, cellElement, cellIndex) {
if (typeof cellIndex == 'number') {
slider.flickity('selectCell', cellIndex);
}
})
$(window).on('load resize', function () {
if (matchMedia('screen and (max-width: 600px)').matches) {
slider.flickity({
cellAlign: 'center'
})
} else {
slider.flickity({
cellAlign: 'left'
})
}
slider.flickity('resize')
})
},
addZero: function (i) {
return i < 10 ? '0' + i : i;
},
timestamp: function (t) {
t = Math.floor(t)
var s = t % 60
var m = Math.floor(t / 60)
return this.addZero(m) + ':' + this.addZero(s)
},
progress: function () {
console.log(this.timestamp(audio.currentTime))
var dur = (audio.currentTime / audio.duration) * 100
$('#a').css('width', dur + '%')
$('#time').html(this.timestamp(audio.currentTime))
audio.paused ? options.stopped = true : options.stopped = false
window.requestAnimationFrame(this.progress)
},
seek: function (e) {
if (e.type === 'click') {
options.seeking = true;
$('#playpause').text('PAUSE')
audio.play()
}
if (options.seeking && (e.buttons > 0 || e.type == 'click') && !audio.paused) {
var percent = e.offsetX / $(this).width()
audio.currentTime = percent * audio.duration
audio.volume = 0
} else {
audio.volume = 1
}
},
playPause: function () {
audio.paused ? (audio.play(), $('#playpause').text('PAUSE')) : (audio.pause(), $('#playpause').text('PLAY'));
},
menu: function () {
if ($('#menu').hasClass('open')) {
$('#menu').removeClass('open');
$('#menu').css({
right: '-100%',
opacity: '0'
});
audio.animate({ volume: 1 })
$('#menu-btn').removeClass('active')
} else {
$('#menu').addClass('open');
$('#menu').css({
right: '0',
opacity: '1'
});
audio.animate({ volume: 0.5 })
$('#menu-btn').addClass('active')
}
},
bind: function () {
$('#progress').on('click', this.seek)
$('#progress').on('mousemove', this.seek)
$('#progress').on('mouseleave', function () {
options.seeking = false
})
$('#playpause').on('click', this.playPause)
audio.onended = () => {
slider.flickity('next')
$('#playpause').text('PAUSE')
audio.play()
}
$('#menu-btn, #close').on('click', this.menu)
$('#nav a').on('click', function () {
$(this).addClass('active').siblings('.active').removeClass('active');
$('#content div').eq($(this).index()).fadeIn(250).siblings(this).hide();
})
}
}
var audio = $('#audio')[0]
var slider = $('#hae').flickity(options.sliderOptions)
CH.init()
});
Any help would be much appreciated.
Thanks!

When you call window.requestAnimationFrame(this.progress) the function will be called later with this pointing to the window object. Try changing
window.requestAnimationFrame(this.progress);
to
let self = this;
window.requestAnimationFrame(function(){
self.progress()
});

Chromecast custom CAF receiver

I'm having issues with the new CAF receiver not registering the YouTube iframe player as a player, and that it is playing. After 5 minutes connected to the receiver, the connection is broken because it thinks that the player is idle.
This is the sender-code
var metadata = new chrome.cast.media.GenericMediaMetadata();
metadata.title = "Foo - Bar";
metadata.image = 'https://img.youtube.com/vi/IXNrHusLXoM/mqdefault.jpg';
metadata.images = ['https://img.youtube.com/vi/IXNrHusLXoM/mqdefault.jpg'];
var mediaInfo = new chrome.cast.media.MediaInfo();
mediaInfo.contentType = "video/*";
mediaInfo.contentId ="IXNrHusLXoM";
mediaInfo.duration = 300;
var request = new chrome.cast.media.LoadRequest();
request.media = mediaInfo;
request.customData = customData;
request.metadata = metadata;
castSession.loadMedia(request).then(
function() {
console.log('Load succeed');
},
function(errorCode) {
console.log('Error code: ' + errorCode);
});
The receiver code can be found here: https://github.com/zoff-music/zoff-chromecast-receiver/blob/feature/v3/receiver.js
Is there any way of having the new CAF receiver hook into the YouTube iframe player, or "manually" dispatch LOADED, BUFFERING, PLAYING, PAUSED, STOPPED events so that the receiver doesn't disconnect from the sender?
Edit: with the above code, the PlayerState gets to the BUFFERING stage, but stops there. The promise with the log "Load succeed" is never triggered.

I managed to trick the receiver with fake mediaEelement. You can see the code in pastebin
const context = cast.framework.CastReceiverContext.getInstance();
const playerManager = context.getPlayerManager();
var yt_events = {};
var pause_request = false;
var yt_player;
var yt_video_fake = {
removeAttribute: function(attr) {
},
setAttribute: function(attr, val) {
},
getCurrentTimeSec: function() { return yt_player && yt_player.getCurrentTime ? yt_player.getCurrentTime() : 0; },
getDurationSec: function() { return yt_player ? yt_player.getDuration() : 0; },
getVolume: function() {
if(!yt_player || !yt_player.getVolume) {
return 0;
}
var volume = new cast.framework.messages.Volume();
volume.level = yt_player.getVolume() / 100;
volume.muted = yt_player.isMuted() ? true : false;
return volume;
},
setVolume: function(vol) { yt_player && yt_player.setVolume(vol.level * 100); },
getState: function() {
if(!yt_player || !yt_player.getPlayerState) {
return 'IDLE';
}
var state = yt_player.getPlayerState();
var _state;
if(pause_request) {
pause_request = false;
state = YT.PlayerState.PAUSED;
}
switch(state) {
default: case YT.PlayerState.UNSTARTED:
_state = 'IDLE';
break;
case YT.PlayerState.PLAYING:
_state = 'PLAYING';
break;
case YT.PlayerState.PAUSED:
_state = 'PAUSED';
break;
case YT.PlayerState.BUFFERING:
_state = 'BUFFERING';
break;
case YT.PlayerState.ENDED:
_state = 'ENDED';
break;
}
return _state;
},
addEventListener: function(e, func) { },
load: function() {},
play: function() { yt_player && yt_player.playVideo(); },
pause: function() { if(yt_player && yt_player.pauseVideo) {pause_request = true; yt_player.pauseVideo(); }},
seek: function(timeTo) { yt_player && yt_player.seekTo(timeTo, true);},
reset: function() {
if(yt_player) {
try { yt_player.destroy && yt_player.destroy(); } catch(e) {
//console.trace(e);
};
delete yt_player;
}
},
registerErrorCallback: function(func) { yt_events['error'] = func; },
registerEndedCallback: function(func) { yt_events['ended'] = func; },
registerLoadCallback: function(func) { yt_events['load'] = func; },
unregisterErrorCallback: function () { delete yt_events['error'] },
unregisterEndedCallback: function () { delete yt_events['ended']},
unregisterLoadCallback: function () { delete yt_events['load']}
};
Object.defineProperty(yt_video_fake, 'currentTime', {
val1: null,
get: function() { return yt_player && yt_player.getCurrentTime ? yt_player.getCurrentTime() : this.val1; },
set: function(newValue) {
yt_player && yt_player.seekTo(newValue, true);
this.val1 = newValue;
},
enumerable : true,
configurable : true
});
Object.defineProperty(yt_video_fake, 'volume', {
val1: null,
get: function() { var vol = this.getVolume(); if(vol) return vol['level']; return 1; },
set: function(newValue) {
yt_player && yt_player.setVolume && yt_player.setVolume(newValue * 100);
this.val1 = newValue;
},
enumerable : true,
configurable : true
});
Object.defineProperty(yt_video_fake, 'duration', {
val1: null,
get: function() { return this.getDurationSec(); },
set: function() {},
enumerable : true,
configurable : true
});
function YoutubePlayMedia(videoid) {
var yt_container = $('#yt_container');
if(!yt_container.length) {
yt_container = $('<div id="yt_container" style="position:absolute;top:0;left:0;width:100%;height:100%;"></div>');
$('body').append(yt_container);
}
yt_container.html('<iframe id="youtube_container" style="width:100%;height:100%;" frameborder="0" allowfullscreen="1" allow="autoplay; encrypted-media" title="YouTube video player" src="//www.youtube.com/embed/' + videoid +'?autoplay=1&enablejsapi=1&modestbranding=1&controls=0&fs=0&iv_load_policy=3&rel=0&cc_load_policy=1&cc_lang_pref=bg"></iframe>');
yt_player = new YT.Player('youtube_container', {
events: {
'onReady': function(e) {
yt_player.is_loaded = true;
yt_player.playVideo();
},
'onStateChange': function(e) {
switch(e.data) {
case YT.PlayerState.PLAYING:
if(yt_player.is_loaded) {
if(yt_events['load']) {
yt_events['load']();
}
}
break;
case YT.PlayerState.ENDED:
//yt_events['ended'] && yt_events['ended'](e);
break;
}
},
'onError': function(e) {
//yt_events['error'] && yt_events['error'](e);
}
}
});
}
function YoutubeLoadMedia(url) {
current_media_type = 'Youtube';
window.onYouTubeIframeAPIReady = function() {
window.youtube_loaded = true;
YoutubePlayMedia(url);
}
if(!window.youtube_script) {
window.youtube_script = document.createElement('script');
window.youtube_script.src = "https://www.youtube.com/iframe_api";
var firstScriptTag = document.getElementsByTagName('script')[0];
firstScriptTag.parentNode.insertBefore(window.youtube_script, firstScriptTag);
} else {
// Вече имаме api направо действаме
YoutubePlayMedia(url);
}
}
playerManager.setMessageInterceptor(
cast.framework.messages.MessageType.LOAD,
loadRequestData => {
if (loadRequestData.media && loadRequestData.media.contentId) {
YoutubeLoadMedia(loadRequestData.media.contentId);
playerManager.setMediaElement(yt_video_fake);
return false;
}
return loadRequestData;
}
);
const options = new cast.framework.CastReceiverOptions();
options.disableIdleTimeout = true;
context.start(options);

The YouTube iframe player is not designed to be a player for a Cast receiver.

make jquery default collapse

i have phpbb 3.1 forum.
i have a- jquery.collapse.js.
i want that the defult will be collapsed insted of open.
wheat parameter do i need to change to do it?
and can o make it that in default only 1 is open and not close?
the default will be the 1st category to be open, and when i open the next one, the open one will close automatically.
the code-
(function($, exports) {
// Constructor
function Collapse (el, options) {
options = options || {};
var _this = this,
query = options.query || "> :even";
$.extend(_this, {
$el: el,
options : options,
sections: [],
isAccordion : options.accordion || false,
db : options.persist ? jQueryCollapseStorage(el.get(0).id) : false
});
// Figure out what sections are open if storage is used
_this.states = _this.db ? _this.db.read() : [];
// For every pair of elements in given
// element, create a section
_this.$el.find(query).each(function() {
new jQueryCollapseSection($(this), _this);
});
// Capute ALL the clicks!
(function(scope) {
_this.$el.on("click", "[data-collapse-summary] " + (scope.options.clickQuery || ""),
$.proxy(_this.handleClick, scope));
_this.$el.bind("toggle close open",
$.proxy(_this.handleEvent, scope));
}(_this));
}
Collapse.prototype = {
handleClick: function(e, state) {
e.preventDefault();
state = state || "toggle";
var sections = this.sections,
l = sections.length;
while(l--) {
if($.contains(sections[l].$summary[0], e.target)) {
sections[l][state]();
break;
}
}
},
handleEvent: function(e) {
if(e.target == this.$el.get(0)) return this[e.type]();
this.handleClick(e, e.type);
},
open: function(eq) {
this._change("open", eq);
},
close: function(eq) {
this._change("close", eq);
},
toggle: function(eq) {
this._change("toggle", eq);
},
_change: function(action, eq) {
if(isFinite(eq)) return this.sections[eq][action]();
$.each(this.sections, function(i, section) {
section[action]();
});
}
};
// Section constructor
function Section($el, parent) {
if(!parent.options.clickQuery) $el.wrapInner('<a href="#"/>');
$.extend(this, {
isOpen : false,
$summary : $el.attr("data-collapse-summary",""),
$details : $el.next(),
options: parent.options,
parent: parent
});
parent.sections.push(this);
// Check current state of section
var state = parent.states[this._index()];
if(state === 0) {
this.close(true);
}
else if(this.$summary.is(".open") || state === 1) {
this.open(true);
} else {
this.close(true);
}
}
Section.prototype = {
toggle : function() {
this.isOpen ? this.close() : this.open();
},
close: function(bypass) {
this._changeState("close", bypass);
},
open: function(bypass) {
var _this = this;
if(_this.options.accordion && !bypass) {
$.each(_this.parent.sections, function(i, section) {
section.close();
});
}
_this._changeState("open", bypass);
},
_index: function() {
return $.inArray(this, this.parent.sections);
},
_changeState: function(state, bypass) {
var _this = this;
_this.isOpen = state == "open";
if($.isFunction(_this.options[state]) && !bypass) {
_this.options[state].apply(_this.$details);
} else {
_this.$details[_this.isOpen ? "show" : "hide"]();
}
_this.$summary.toggleClass("open", state !== "close");
_this.$details.attr("aria-hidden", state === "close");
_this.$summary.attr("aria-expanded", state === "open");
_this.$summary.trigger(state === "open" ? "opened" : "closed", _this);
if(_this.parent.db) {
_this.parent.db.write(_this._index(), _this.isOpen);
}
}
};
// Expose in jQuery API
$.fn.extend({
collapse: function(options, scan) {
var nodes = (scan) ? $("body").find("[data-collapse]") : $(this);
return nodes.each(function() {
var settings = (scan) ? {} : options,
values = $(this).attr("data-collapse") || "";
$.each(values.split(" "), function(i,v) {
if(v) settings[v] = true;
});
new Collapse($(this), settings);
});
}
});
//jQuery DOM Ready
$(function() {
$.fn.collapse(false, true);
});
// Expose constructor to
// global namespace
exports.jQueryCollapse = Collapse;
exports.jQueryCollapseSection = Section;
})(window.jQuery, window);
the forum- limodim.com/1
thank you.

Soundcloud stratus player won't dynamically add more than an individual track at a time

Thanks to other people's questions, I have gotten AJAX links to work for individual songs when clicked in the DOM. My problem is that I need to find a way to load all of the tracks under a given user's account on soundcloud. I edited the stratus.js file to make it listen for the click by using .delegate(), but I can't figure out how to call the track listing from soundcloud and load it through the given iframe. This is the stratus.js file.
(function() {
var $;
$ = jQuery;
(function($){var g,d,j=1,a,b=this,f=!1,h="postMessage",e="addEventListener",c,i=b[h]&&!$.browser.opera;$[h]=function(k,l,m){if(!l){return}k=typeof k==="string"?k:$.param(k);m=m||parent; if(i){m[h](k,l.replace(/([^:]+:\/\/[^\/]+).*/,"$1"))}else{if(l){m.location=l.replace(/#.*$/,"")+"#"+(+new Date)+(j++)+"&"+k}}};$.receiveMessage=c=function(l,m,k){if(i){if(l){a&&c(); a=function(n){if((typeof m==="string"&&n.origin!==m)||($.isFunction(m)&&m(n.origin)===f)){return f}l(n)}}if(b[e]){b[l?e:"removeEventListener"]("message",a,f)} else{b[l?"attachEvent":"detachEvent"]("onmessage",a)}}else{g&&clearInterval(g);g=null;if(l){k=typeof m==="number"?m:typeof k==="number"?k:100; g=setInterval(function(){var o=document.location.hash,n=/^#?\d+&/;if(o!==d&&n.test(o)){d=o;l({data:o.replace(n,"")})}},k)}}}})(jQuery);
$.fn.stratus = function(settings) {
return $.stratus(settings);
};
$.stratus = function(settings) {
var root_url, src;
root_url = settings.env === 'development' ? 'http://example.com:3000' : 'http://stratus.sc';
$('head').append("<link rel='stylesheet' href='" + root_url + "/stratus.css' type='text/css'/>");
if (settings.align === 'top') {
$('head').append("<style>#stratus{ top: 0; }</style>");
}
if (settings.position === 'absolute') {
$('head').append("<style>#stratus{ position: absolute; }</style>");
}
if (settings.offset) {
$('head').append("<style>#stratus{ " + settings.align + ": " + settings.offset + "px !important; }</style>");
}
$('body').append("<div id='stratus'><iframe allowtransparency='true' frameborder='0' scrolling='0'></div>");
src = root_url + '/player?' + $.param(settings, true) + '&link=' + encodeURIComponent(document.location.href);
$('#stratus iframe').attr({
src: src
});
$('#stratus iframe').load(function() {// /resolve?url=
return $(this).css({
visibility: 'visible'
});
});
$('#stratus').show();
$(document).delegate("a.stratus","click", function () {
$.postMessage($(this).attr('href'), src, $('#stratus iframe')[0].contentWindow);
return false;
});
return $.receiveMessage(function(e) {
return $('#stratus').toggleClass('open');
}, root_url);
};
}).call(this);
I believe that a call through the Soundcloud API will be necessary, then a run through the user data for individual track additions through the iframe. This is the player.js file, which I'm not sure is necessary for this post, but it helped me begin to understand what was happening with the initial adding of tracks from the customisable Links field:
console.log("Stratus loading...");
$(function() {
var b, booleans, getScaledImageData, link, params, scApiUrl, source_origin, strtobool, timecode, _i, _len;
window.Track = Backbone.Model.extend({
initialize: function() {
var that, track;
that = this;
track = this.attributes;
track.timecode = timecode(track.duration);
return soundManager.createSound({
id: "sound_" + track.id,
multiShot: false,
url: track.stream_url + (/\?/.test(track.stream_url) ? '&' : '?') + 'consumer_key=' + Stratus.options.key,
volume: Stratus.options.volume,
whileplaying: function() {
Stratus.$('.played').width((this.position / track.duration * 100) + '%');
return Stratus.$('#player .duration').text(timecode(this.position) + ' / ' + timecode(track.duration));
},
whileloading: function() {
return Stratus.$('.loaded').width((this.bytesLoaded / this.bytesTotal * 100) + '%');
},
onplay: function() {
if (this.loaded) {
return Stratus.$('.loaded').width('100%');
}
},
onresume: function() {
if (this.loaded) {
return Stratus.$('.loaded').width('100%');
}
},
onfinish: function() {
return Stratus.nextTrack();
}
});
},
sound: function() {
return "sound_" + this.id;
},
play: function() {
return soundManager.play(this.sound());
},
pause: function() {
return soundManager.pause(this.sound());
},
seek: function(relative) {
return soundManager.setPosition(this.sound(), this.get('duration') * relative);
},
getWave: function(callback) {
var that;
that = this;
return $.getJSON('http://wave64.heroku.com/w?callback=?', {
url: this.get('waveform_url')
}, function(data) {
var waveform;
waveform = new Image();
waveform.src = data.data;
return waveform.onload = function() {
var waveform_data;
waveform_data = getScaledImageData(waveform);
that.set({
'waveform_data': waveform_data
});
return callback();
};
});
},
comment: function(text) {
return SC.post("/tracks/" + this.id + "/comments", {
"comment[body]": text
}, function() {
Stratus.$('#comment input').val('');
Stratus.toggleComment();
return alert("Comment posted!");
});
},
favorite: function() {
if (Stratus.$('.love').hasClass('loved')) {
return SC["delete"]("/me/favorites/" + this.id, function() {
return Stratus.$('.love').removeClass('loved');
});
} else {
return SC.put("/me/favorites/" + this.id, function() {
return Stratus.$('.love').addClass('loved');
});
}
},
isFavorite: function() {
return SC.get("/me/favorites/" + this.id, function(data) {
if (!(data.errors != null)) {
return Stratus.$('.love').addClass('loved');
}
});
}
});
window.TrackList = Backbone.Collection.extend({
model: Track,
select: function(track) {
this.stop();
this.current = track;
return this.trigger('player:select');
},
toggle: function(track) {
if (track && this.current !== track) {
this.select(track);
}
if (this.playing) {
return this.pause();
} else {
return this.play();
}
},
play: function(track) {
if (track && this.current !== track) {
this.select(track);
}
this.playing = true;
this.current.play();
return this.trigger('player:toggle');
},
pause: function() {
this.playing = false;
this.current.pause();
return this.trigger('player:toggle');
},
stop: function() {
this.playing = false;
return soundManager.stopAll();
},
prev: function() {
var i;
i = this.indexOf(this.current) - 1;
if (i > -1) {
return this.at(i);
} else {
return this.last();
}
},
next: function() {
var i;
i = this.indexOf(this.current) + 1;
if (i < _.size(this)) {
return this.at(i);
} else {
return this.first();
}
},
random: function() {
var i;
i = Math.round(Math.random() * _.size(this));
return this.at(i);
}
});
window.Tracks = new TrackList();
window.TrackView = Backbone.View.extend({
tagName: "li",
events: {
"click": "toggleTrack"
},
render: function() {
return $(this.el).html(ich.track(this.model.toJSON()));
},
toggleTrack: function() {
return Tracks.toggle(this.model);
}
});
window.AppView = Backbone.View.extend({
el: $('#stratus'),
defaults: {
align: 'bottom',
animate: 'slide',
auto_play: false,
buying: true,
color: 'F60',
download: true,
env: 'production',
key: 'ybtyKcnlhP3RKXpJ58fg',
links: ['http://soundcloud.com/qotsa/sets/test'],
random: false,
redirect: 'http://stratus.sc/callback.html',
user: true,
stats: true,
volume: 50
},
events: {
"dblclick": "showDrawer",
"click .prev": "prevTrack",
"click .toggle": "toggleCurrent",
"click .next": "nextTrack",
"click #time": "seekTrack",
"mousemove #time": "movePosition",
"click .share": "toggleShare",
"click .close.sharing": "toggleShare",
"click .comment": "toggleComment",
"click .close.commenting": "toggleComment",
"keypress #add input": "commentTrack",
"click .love": "favoriteTrack",
"click #avatar": "logout",
"click .popup": "popupPlayer"
},
initialize: function() {
var options, that;
console.log("Stratus initializing...");
that = this;
this.options = options = _.extend(this.defaults, this.options);
Tracks.bind('add', this.add, this);
Tracks.bind('player:select', this.render, this);
Tracks.bind('player:toggle', this.toggle, this);
SC.initialize({
client_id: options.key,
redirect_uri: options.redirect
});
return SC.whenStreamingReady(function() {
return that.loadTracks(options.links, function() {
Tracks.select(options.random ? Tracks.random() : Tracks.first());
if (options.auto_play) {
Tracks.play();
}
if (options.align === 'top') {
options.top = true;
}
options.color = {
base: tinycolor(options.color).toHexString(),
light: tinycolor.lighten(options.color).toHexString(),
dark: tinycolor.darken(options.color).toHexString()
};
$('head').append(ich.theme(options));
if (SC.isConnected()) {
that.updateUser();
}
return that.animate(function() {
return that.resize();
});
});
});
},
loadTracks: function(links, callback) {
var index, loadURL;
index = 0;
loadURL = function(link) {
var url;
console.log("Loading " + link + "...");
url = scApiUrl(link);
return SC.get(url, function(data) {
index += 1;
if (data.tracks) {
Tracks.add(data.tracks);
} else if (data.username || data.creator) {
links.push(data.uri + '/tracks');
} else {
Tracks.add(data);
}
if (links[index]) {
return loadURL(links[index]);
} else {
return callback();
}
});
};
return loadURL(links[index]);
},
render: function() {
var artwork, data, el, that, track;
that = this;
track = Tracks.current;
data = Tracks.current.toJSON();
el = this.$('#tracks .track_' + data.id);
this.$('#player .track').html(ich.current(data));
this.$('#buttons').html(ich.buttons(data));
this.$('#stats').html(ich.stats(data));
this.$('#share').html(ich.share(data));
artwork = data.artwork_url ? data.artwork_url : data.user.avatar_url;
this.$('#artwork img').attr({
src: artwork.replace('-large', '-t300x300')
});
el.addClass('current').siblings().removeClass('current');
if (track.has('waveform_data')) {
this.updateWave(track);
} else {
track.getWave(function() {
return that.updateWave(track);
});
}
if (SC.isConnected()) {
track.isFavorite();
}
return this.resize();
},
add: function(track) {
var view;
view = new TrackView({
model: track,
className: 'track track_' + track.id
});
return this.$("#tracks").append(view.render());
},
toggle: function() {
return this.$('#player').toggleClass('playing', Tracks.playing);
},
toggleCurrent: function() {
Tracks.toggle();
return false;
},
prevTrack: function() {
Tracks.play(Tracks.prev());
return false;
},
nextTrack: function() {
Tracks.play(Tracks.next());
return false;
},
seekTrack: function(e) {
var relative;
if (!Tracks.playing) {
Tracks.play();
}
relative = Math.min(this.$('.loaded').width(), (e.pageX - this.$('#time').offset().left) / this.$('#time').width());
Tracks.current.seek(relative);
return false;
},
movePosition: function(e) {
return this.$('.position').css({
"left": e.pageX - this.$('#time').offset().left
});
},
updateWave: function(track) {
var canvas, context;
canvas = this.$('#waveform').get(0);
context = canvas.getContext('2d');
canvas.setAttribute('width', 180);
canvas.setAttribute('height', 40);
context.clearRect(0, 0, 180, 40);
return context.putImageData(track.get('waveform_data'), 0, 0);
},
animate: function(callback) {
if (this.options.popup) {
this.$('#player, #drawer').fadeIn('slow');
}
switch (this.options.animate) {
case 'slide':
return this.$('#player').slideDown('slow', function() {
return callback();
});
case 'fade':
return this.$('#player').fadeIn('slow', function() {
return callback();
});
default:
return this.$('#player').show(0, function() {
return callback();
});
}
},
resize: function() {
this.$('#share').css({
"margin-right": this.$('#buttons').width() - 30
});
return this.$('#comment').css({
"margin-right": this.$('#buttons').width() - 60
});
},
showDrawer: function() {
this.$('#drawer').toggle();
return $.postMessage(true, source_origin, parent);
},
popupPlayer: function() {
Tracks.stop();
this.toggle();
return $.popupWindow($.url().attr('source') + '&popup=true', {
height: 199,
width: 800,
location: false
});
},
toggleShare: function() {
this.$('#share').toggle();
this.$('#share input').select();
return false;
},
toggleComment: function() {
var that;
that = this;
if (SC.isConnected()) {
this.$('#comment').toggle();
this.$('#comment input').select();
} else {
this.login(function() {
return that.toggleComment();
});
}
return false;
},
commentTrack: function(e) {
var text;
text = this.$('#comment input').val();
if (e.keyCode === 13) {
return Tracks.current.comment(text);
}
},
favoriteTrack: function() {
if (SC.isConnected()) {
Tracks.current.favorite();
} else {
this.login(function() {
return Tracks.current.favorite();
});
}
return false;
},
login: function(callback) {
var that;
that = this;
return SC.connect(function(user) {
that.updateUser();
return callback();
});
},
updateUser: function() {
var that;
that = this;
return SC.get("/me", function(user) {
return that.$('#avatar').attr({
src: user.avatar_url
});
});
},
logout: function() {
SC.disconnect();
return alert("Logged out.");
}
});
link = decodeURIComponent($.url().param('link'));
source_origin = $.url(link).attr('base');
$.receiveMessage(function(e) {
var result, url;
url = e.data;
result = Tracks.find(function(track) {
return track.get('permalink_url') === url;
});
if (result) {
return Tracks.toggle(result);
} else {
return SC.get("/resolve", {
url: url
}, function(track) {
Tracks.add(track);
return Tracks.play(Tracks.get(track.id));
});
}
}, source_origin);
scApiUrl = function(url) {
if (/api\./.test(url)) {
return url;
} else {
return "/resolve?url=" + url;
}
};
timecode = function(ms) {
return SC.Helper.millisecondsToHMS(ms);
};
strtobool = function(str) {
switch (str) {
case 'true':
return true;
case true:
return true;
default:
return false;
}
};
getScaledImageData = function(image) {
var color, height, isImageData, lastIndex, orig, origCtx, origImageData, origWidth, populateScaledImagedData, precise, scaleX, scaleY, scaled, scaledCtx, scaledImageData, width, x, y;
color = Stratus.$('#player').css('background-color');
color = tinycolor(color).toRgb();
precise = function(number, precision) {
precision = Math.pow(10, precision || 0);
return Math.round(number * precision) / precision;
};
populateScaledImagedData = function(x, y, srcImageData, indexOffset) {
var alpha, index, indexScaled, isOpaque;
indexOffset = indexOffset || 0;
index = (Math.floor(y / scaleY) * origWidth + Math.floor(x / scaleX)) * 4;
indexScaled = indexOffset + (y * width + x) * 4;
alpha = srcImageData.data[index + 3];
isOpaque = alpha === 255;
scaledImageData.data[indexScaled] = isOpaque ? color['r'] : 0;
scaledImageData.data[indexScaled + 1] = isOpaque ? color['g'] : 0;
scaledImageData.data[indexScaled + 2] = isOpaque ? color['b'] : 0;
scaledImageData.data[indexScaled + 3] = alpha;
return indexScaled;
};
height = 40;
width = 180;
origWidth = image.width;
scaleX = precise(width / image.width, 4);
scaleY = precise(height / image.height, 4);
try {
isImageData = !(image instanceof Image);
} catch (e) {
isImageData = image.hasOwnProperty("data") && image.data.hasOwnProperty("length");
}
orig = document.createElement("canvas");
orig.width = image.width;
orig.height = image.height;
origCtx = orig.getContext("2d");
if (!isImageData) {
origCtx.drawImage(image, 0, 0, image.width, image.height, 0, 0, image.width, image.height);
} else {
origCtx.putImageData(image, 0, 0);
}
origImageData = origCtx.getImageData(0, 0, image.width, image.height);
scaled = document.createElement("canvas");
scaled.width = width;
scaled.height = height;
scaledCtx = scaled.getContext("2d");
scaledImageData = scaledCtx.getImageData(0, 0, width, height);
y = 0;
while (y < height) {
x = 0;
while (x < width) {
lastIndex = populateScaledImagedData(x, y, origImageData, 0);
x++;
}
y++;
}
return scaledImageData;
};
params = $.url().param();
if (params.links) {
params.links = decodeURIComponent(params.links);
params.links = params.links.split(',');
}
if (params.redirect) {
params.redirect = decodeURIComponent(params.redirect);
}
booleans = ['auto_play', 'buying', 'download', 'random', 'user', 'stats', 'popup'];
for (_i = 0, _len = booleans.length; _i < _len; _i++) {
b = booleans[_i];
if (params[b]) {
params[b] = strtobool(params[b]);
}
}
return window.Stratus = new AppView(params);
});
I'm aware that this is rather intensive, and I apologize for that. Just throwing up a prayer that I won't have to radically alter my website user's experience in a negative way.

I don't know about the stratus player, but in general - if you want to retrieve a list of tracks of a specific user - given that you know the user's id, you indeed have to make a call to the soundcloud API. You can do it like this:
SC.initialize({
client_id: "YOUR_CLIENT_ID",
redirect_uri: "http://example.com/callback.html",
});
/**
Once that's done you are all set and ready to call the SoundCloud API.
**/
/**
Call to the SoundCloud API.
Retrieves list of tracks, and displays a list with links to the tracks showing 'tracktitle' and 'track duration'
**/
var userId = 39090345; // user_id of Prutsonic
SC.get("/tracks", {
user_id: userId,
limit: 100
}, function (tracks) {
for (var i = 0; i < tracks.length; i++) {
console.log(tracks[i].title);
}
});
You can try my fiddle here: http://jsfiddle.net/tobiasbeuving/26pHX/5/
Cheers,
T

How does the new Apple page fade in the image?

Apple changed their home page with a fade in effect that loads fast. Is this HTML 5 or jQuery?
Does anyone know how they did this?

It is JavaScript. HTML5 is a markup language - it doesn't do dynamic things. But the way people are throwing around the term, you'd think it could cure world hunger.
It looks like they use the Prototype library - probably for legacy reasons, now that jQuery has gained more traction. Or maybe they just prefer that library.
In plain JavaScript, you can fade a div with window.setInterval() and animating style.opacity.

With this bit of javascript --> http://images.apple.com/global/scripts/ac_blackout.js.
Here it is after a run through http://jsbeautifier.org/:
AC.Blackout = Class.create({
defaultOptions: {
duration: 1.25,
delay: 2,
showOnce: false,
showWhenReferredByApple: true
},
initialize: function (c, a, b) {
this.uniqueIdentifier = a || Math.floor(Math.random() * 1000000);
this.options = Object.extend(Object.clone(this.defaultOptions), b);
if (!this.shouldShow()) {
return false
}
this._addBodyClass();
Event.onDOMReady(function () {
this.og = {};
this.og.element = $(c);
this.bo = {};
this.bo.offsets = this.og.element ? this.og.element.cumulativeOffset() : [0, 0];
this.images = [];
if (this.options.showOnce) {
this._setHasShown()
}
this._create();
this.fade.bind(this).delay(this.options.delay)
}.bind(this))
},
addImage: function (b, a) {
this.preloadImage(b);
if ( !! this._acceptImages) {
this._addImage(false, b, a)
} else {
this._boundAddImage = this._addImage.bindAsEventListener(this, b, a);
Event.observe(document.body, "ACBlackout:acceptImages", this._boundAddImage)
}
},
preloadImage: function (c) {
var b = function (d) {
delete a
};
var a = new Image();
a.onload = b;
a.src = c
},
_addImage: function (a, c, b) {
if (typeof this.images == "undefined") {
return false
}
this.images.push(new AC.Blackout.Image(this.bo, c, b))
},
wasReferredByApple: function () {
if (typeof this._wasReferredByApple !== "undefined") {
return this._wasReferredByApple
}
this._wasReferredByApple = document.referrer.match(/^\w*:\/\/[^\.]*.apple.com/);
if ( !! document.referrer.match(/\/home/)) {
return false
}
return this._wasReferredByApple
},
shouldShow: function () {
if (typeof this._shouldShow !== "undefined") {
return this._shouldShow
}
if (/msie|MSIE 6/.test(navigator.userAgent)) {
return this._shouldShow = false
}
this._shouldShow = true;
if (this.options.showOnce) {
if (!this.options.showWhenReferredByApple) {
if (!this.wasReferredByApple()) {
return this._shouldShow = true
}
}
try {
typeof localStorage
} catch (b) {
return this._shouldShow = false
}
if (typeof localStorage !== "undefined") {
try {
var a = localStorage.getItem("ACBlackout-" + this.uniqueIdentifier);
this._shouldShow = (a == null) ? true : false
} catch (b) {
return this._shouldShow = false
}
} else {
if ("addBehavior" in document.body) {
document.body.addBehavior("#default#userData");
document.body.load("ACBlackout");
this._shouldShow = document.body.getAttribute("ACBlackout-" + this.uniqueIdentifier) == null ? true : false
}
}
} else {
if (!this.options.showWhenReferredByApple) {
if ( !! this.wasReferredByApple()) {
this._shouldShow = false
}
}
}
return this._shouldShow
},
_addBodyClass: function () {
document.body.className += " ACBlackoutBody"
},
_setHasShown: function () {
var a = new Date;
a = a.getTime();
try {
typeof localStorage
} catch (b) {
return true
}
if (typeof localStorage !== "undefined") {
try {
localStorage.setItem("ACBlackout-" + this.uniqueIdentifier, a)
} catch (b) {
return true
}
} else {
if ("addBehavior" in document.body) {
document.body.addBehavior("#default#userData");
document.body.setAttribute("ACBlackout-" + this.uniqueIdentifier, a);
document.body.save("ACBlackout");
return true
} else {
return true
}
}
},
_create: function () {
this.bo.height = document.documentElement.clientHeight > document.body.scrollHeight ? document.documentElement.clientHeight : document.body.scrollHeight;
if ($("ACBlackout")) {
this.bo.element = $("ACBlackout")
} else {
this.bo.element = new Element("div", {
id: "ACBlackout",
"class": "ACBlackout",
style: "height: " + this.bo.height + "px;"
})
}
this._acceptImages = true;
Event.fire(document.body, "ACBlackout:acceptImages", true);
if (AC.Detector.isCSSAvailable("transition")) {
this.bo.element.setVendorPrefixStyle("transition", this.options.duration + "s opacity ease-in")
}
if (AC.Detector.isIE()) {
Element.insert(document.body, {
bottom: this.bo.element
})
} else {
Element.insert(document.body, {
top: this.bo.element
})
}
Element.removeClassName(document.body, "ACBlackoutBody")
},
fade: function () {
if (AC.Detector.isCSSAvailable("transition")) {
var b = function (c) {
c.target.hide();
c.target.removeVendorEventListener("transitionEnd", a)
};
var a = b.bindAsEventListener(this);
this.bo.element.addVendorEventListener("transitionEnd", a);
this.bo.element.setStyle("opacity: 0;")
} else {
this.bo.element.fade({
duration: this.options.duration
})
}
}
});
AC.Blackout.Image = Class.create({
defaultOptions: {
offsets: [0, 0],
dimensions: false,
duration: 0.75,
delay: 0
},
initialize: function (b, c, a) {
this.options = Object.extend(Object.clone(this.defaultOptions), a);
this.bo = b;
this.src = c;
this._create();
this.fadeIn.bind(this).delay(this.options.delay)
},
_create: function () {
this.left = this.options.offsets[0];
this.top = this.bo.offsets[1] + this.options.offsets[1];
this.main = new Element("div", {
"class": "ACBlackoutMain"
});
this.img = new Element("img", {
src: this.src,
"class": "ACBlackoutImg",
style: "top: " + this.top + "px; left: " + this.left + "px;"
});
if (this.options.dimensions) {
this.img.setStyle("width: " + this.options.dimensions[0] + "px; height: " + this.options.dimensions[1] + "px;")
}
if (AC.Detector.isCSSAvailable("transition")) {
this.img.setStyle("opacity: 0");
this.img.setVendorPrefixStyle("transition", this.options.duration + "s opacity ease-in")
} else {
this.img.hide()
}
this.bo.element.insert(this.main);
this.main.insert(this.img)
},
fadeIn: function () {
if (AC.Detector.isCSSAvailable("transition")) {
this.img.setStyle("opacity: 1;")
} else {
this.img.appear({
duration: this.options.duration
})
}
}
});