Display song's metadata in page title (browser tab)? - javascript

I would label my coding skills as intermediate thus what I am asking may or may not be simple or obvious (I wouldn't know the difference). Also I sincerely thank any and everyone who gives this even an ounce of attention.
My objective is to grab raw song metadata from another server (in which I am a client of) via the jsonp and ajax method. Once I successfully obtain the metadata (Artist, Title & album), I then would like to display it in my website’s page title (please see pics below).
The reason I would like to do this is because from what I could gather via an extensive and worn out research, it seems that most Bluetooth Audio devices are reading the metadata from the page title (browser tab):
Google Music playing in browser
BT Audio player
What I would love to do seems like it should be simple to do, yet I cannot figure away to display "Artist, Title and Album" in my browser like Spotify, Youtube or Google Music does.
My code below is able to pull the raw data, convert it using jsonp and I can successfully push only ONE element from the raw data (IE 'title') by placing it as an ID element. However, how can I push all three (Artist, Title & Album) to the page title?
<!DOCTYPE html>
<html
lang=en
dir="ltr"
class="mobile-web-player"
>
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
<script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.4/jquery.min.js"></script>
<script type="text/javascript">
function update(metadataObj) {
if (metadataObj && metadataObj.m_Item2) {
var title = document.getElementById('title');
title.innerHTML = metadataObj.m_Item2.Title;
var artist = document.getElementById('artist');
artist.innerHTML = 'by ' + metadataObj.m_Item2.Artist;
var album = document.getElementById('album');
album.innerHTML = metadataObj.m_Item2.Album + ' ';
}
}
</script>
<script type="text/javascript">
var stationID = 'X123';
var apiToken = 'X12345';
// refresh MetaData every 5 seconds
function fetchMetadata(stationID, apiToken) {
$.ajax({
type: 'get',
cache: false,
url: "https://listen.samcloud.com/webapi/station/X123/history/npe?token=X12345&callback=update&format=json",
//async: true,
datatype: 'jsonp',
});
}
fetchMetadata(stationID, apiToken);
window.setInterval(function() {
fetchMetadata(stationID, apiToken);
}, 5000);
</script>
<!-- I can successfully send the song's title to my page title via <title id> method -->
<title id="title">My Radio Station</title>
</head>
<body>
</body>
</html>

In your update() function you can call document.title to set the new tab title instead of setting the <title> tag. For example:
function update(metadataObj) {
if (metadataObj && metadataObj.m_Item2) {
var title = document.getElementById('title');
var artist = document.getElementById('artist');
var album = document.getElementById('album');
// If you are using es6
document.title = `Playing ${title} from ${artist} - ${album}`;
// If not using es6
// document.title = 'Playing '+ title + ' from '+ artist +' - album';
}
}

You could change your update function to the following to write Artist, Title, and Album to the web pages title.
function update(metadataObj) {
if (metadataObj && metadataObj.m_Item2) {
var title = document.getElementById('title');
title.innerHTML = metadataObj.m_Item2.Title + ' ' + metadataObj.m_Item2.Album + ' ' + metadataObj.m_Item2.Artist;
}
}

Related

How can I update an image on a Flask wepage using JavaScript?

I am building an application that downloads a user's now playing data from Spotify and then serves the information as a webpage widget that the user can add to their livestreams to show their viewers what music they are playing in their livestream.
On the backend I have a Flask server that fetches the information and then pushes an update on the frontend via a websocket - this is to avoid having to refresh the page. On the web page I have an Updater.js file that receives the information from the backend and updates the widget to display the new song.
The problem I am having is that I am unable to update the cover image using the Updater.js script. At first I did so by saving the image under the same name and triggering an update on the image by adding a ?t=timestamp to the end of the image url. It worked for awhile, until I updated my Firefox and it stopped working on both Firefox and Chrome.
I changed it so that the Flask server saves the image with a number attached that increments, and then deletes the previous image. I have tried updating the page to display the new image, but it seems that the web page cannot access my server's static files. I have tried different link formats, but I haven't found anything that works so far.
Is there some way that I can access images in the static folder using JavaScript and update it on the page, or will I only be able to achieve this using render_template?
Updater.js:
// This file listens to the backend, and updates the widget when a new song has started playing
// Use this function to update the cover image without refreshing the page
function refresh_image(url)
{
let image = document.getElementById("cover_art");
image.src = url
console.log(image.src)
}
const socket = new WebSocket("ws://" + location.host + "/update");
const image_link = "http://localhost:"
console.log("Communication between server and browser is initialized")
// Listen for data being pushed from the backend
socket.addEventListener("message", package => {
let song = "";
let artists = "";
let port = "";
let image_num = "";
let artists_done = false;
let song_done = false;
let port_done = false;
console.log(package.data)
// Seperate data into variables
for (let i = 0; i < package.data.length; i++)
{
// Artists
if (artists_done == false)
{
while (package.data[i] != ";")
{
artists += package.data[i];
i++;
};
i++;
artists_done = true;
};
// Song
if (song_done == false)
{
while (package.data[i] != ";")
{
song += package.data[i];
i++;
};
i++;
song_done = true;
};
// port
if (port_done == false)
{
while (package.data[i] != ";")
{
port += package.data[i];
i++;
};
i++;
port_done = true;
};
// Image_num
image_num += package.data[i];
};
// Assemble the image src
image_src = "/static/image" + image_num + ".jpg";
// Update widget
refresh_image(image_src)
document.getElementById("song_title").innerHTML = song;
document.getElementById("artists").innerHTML = artists;
console.log("Widget is successfully updated")
});
HTML:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<link rel="stylesheet" href="static/style.css">
<title>OBS Music Widget</title>
</head>
<body>
<script src="static/updater.js"></script>
<div id="widget">
<div id="cover"><img id="cover_art" src="{{url_for('static', filename='image.jpg')}}" alt="Song cover image"></div>
<div id="info">
<p id="song_title">{{ song }}</p>
<p id="artists">{{ artists }}</p>
</div>
</div>
</body>
</html>

YouTube Data API v3 Using Javascript

I am kind of new to writing code and using API's. I am not entirely sure why my program is not working the way I would like it to.
What I want this to do is provide the search results in the console before I can move onto what I would like it to do next; however, I don't think anything is being searched.
According to this: https://developers.google.com/youtube/v3/docs/search/list#http-request, the only required parameter is "part," so I think I did everything right? Probably not though, because from what I can tell, nothing is being searched when I try to search for a term.
Here is my code:
HTML:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
</head>
<body>
<section>
<form id="search-term">
<p>Enter Name:<br/>
<input id="query" type="text" name="Name"/><br/>
<hr/>
<input type="button" value="Enter here"/>
</p>
<div id="search-results">
</div>
</form>
</section>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js"></script>
<script type="text/javascript" src="js/script.js"></script>
</body>
</html>
JavaScript:
$(document).ready(function(){
$('#search-term').submit(function(event){
event.preventDefault();
var searchTerm = $('#query').val();
getRequest(searchTerm);
});
function getRequest(searchTerm){
var params = {
"q": "searchTerm",
"part": 'snippet',
"type": 'video',
"key": 'I was advised to keep my key private, so I edited this part out'
}
url = 'https://www.googleapis.com/youtube/v3/search';
$.getJSON(url, params, function(data){
showResults(data.items);
})
}
function showResults(results){
var html = "";
$.each(results, function(index,value){
html += '<p>' + value.snippet.thumbnails.high.url + '</p>' + '<p>' + 'https://www.youtube.com/watch?v=' + value.id.videoId + '</p>' + '<hr/>';
console.log(value.snippet.thumbnails.high.url);
console.log(value);
})
$('#search-results').html(html);
}
})
You probably want data.items instead of data.search
I don't see any mention of a 'search' parameter under the "Response" section listed in their documentation. See the response properties here: https://developers.google.com/youtube/v3/docs/search/list#response
Therefore, you can probably see some output if you console.log(data); instead of data.search
I recommend you check out Google's Javascript API Client Library. It might not be the best solution for you, but it's worth a try. Download on GitHub
Example using gapi.client.youtube.search.list:
// After the API loads, call a function to enable the search box.
function handleAPILoaded() {
$('#search-button').attr('disabled', false);
}
// Search for a specified string.
function search() {
var q = $('#query').val();
var request = gapi.client.youtube.search.list({
q: q,
part: 'snippet'
});
request.execute(function(response) {
var str = JSON.stringify(response.result);
$('#search-container').html('<pre>' + str + '</pre>');
});
}

Simple youtube javascript api 3 request not works

i've tried to write a simple youtube request to search video with youtube javascript api v3.
This is the source code:
<!DOCTYPE html>
<html>
<head>
<script type="text/javascript">
function showResponse(response) {
var responseString = JSON.stringify(response, '', 2);
document.getElementById('response').innerHTML += responseString;
}
// Called automatically when JavaScript client library is loaded.
function onClientLoad() {
gapi.client.load('youtube', 'v3', onYouTubeApiLoad);
}
// Called automatically when YouTube API interface is loaded
function onYouTubeApiLoad() {
// This API key is intended for use only in this lesson.
gapi.client.setApiKey('API_KEY');
search();
}
function search() {
var request = gapi.client.youtube.search.list({
part: 'snippet',
q:'U2'
});
// Send the request to the API server,
// and invoke onSearchRepsonse() with the response.
request.execute(onSearchResponse);
}
// Called automatically with the response of the YouTube API request.
function onSearchResponse(response) {
showResponse(response);
}
</script>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.8.2/jquery.min.js"></script>
<script src="https://apis.google.com/js/client.js?onload=onClientLoad" type="text/javascript"></script>
</head>
<body>
<pre id="response"></pre>
</body>
</html>
When i load this page on google chrome (updated), nothing happens, the page remains blank.
I have request the API Key for browser apps (with referers) and copied in the method gapi.client.setApiKey.
Anyone can help me?
Thanks
Try this example here
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=utf-8"/>
<title>Google AJAX Search API Sample</title>
<script type="text/javascript" src="http://www.google.com/jsapi"></script>
<script type="text/javascript">
// How to search through a YouTube channel aka http://www.youtube.com/members
google.load('search', '1');
function OnLoad() {
// create a search control
var searchControl = new google.search.SearchControl();
// So the results are expanded by default
options = new google.search.SearcherOptions();
options.setExpandMode(google.search.SearchControl.EXPAND_MODE_OPEN);
// Create a video searcher and add it to the control
searchControl.addSearcher(new google.search.VideoSearch(), options);
// Draw the control onto the page
searchControl.draw(document.getElementById("content"));
// Search
searchControl.execute("U2");
}
google.setOnLoadCallback(OnLoad);
</script>
</head>
<body style="font-family: Arial;border: 0 none;">
<div id="content">Loading...</div>
</body>
</html>
When you use <script src="https://apis.google.com/js/client.js?onload=onClientLoad" ..></script>
you have to upload the html file somewhere online or use XAMPP on your PC
To use html for searching YT videos, using Javascript on PC, as I know, we need to use other codings:
1- Use javascript code similar to this for API version 2.0. Except only the existence of API KEY v3.
2- Use the jQuery method "$.get(..)" for the purpose.
See:
http://play-videos.url.ph/v3/search-50-videos.html
For more details see (my post "JAVASCRIPT FOR SEARCHING VIDEOS"):
http://phanhung20.blogspot.com/2015_09_01_archive.html
var maxRes = 50;
function searchQ(){
query = document.getElementById('queryText').value;
email = 'https://www.googleapis.com/youtube/v3/search?part=snippet&maxResults=50'+
'&order=viewCount&q='+ query + '&key=****YOUR API3 KEY*****'+
'&callback=myPlan';
var oldsearchS = document.getElementById('searchS');
if(oldsearchS){
oldsearchS.parentNode.removeChild(oldsearchS);
}
var s = document.createElement('script');
s.setAttribute('src', email);
s.setAttribute('id','searchS');
s.setAttribute('type','text/javascript');
document.getElementsByTagName('head')[0].appendChild(s);
}
function myPlan(response){
for (var i=0; i<maxRes;i++){
var videoID=response.items[i].id.videoId;
if(typeof videoID != 'undefined'){
var title=response.items[i].snippet.title;
var links = '<br><img src="http://img.youtube.com/vi/'+ videoID +
'/default.jpg" width="80" height="60">'+
'<br>'+(i+1)+ '. <a href="#" onclick="playVid(\''+ videoID +
'\');return false;">'+ title + '</a><br>';
document.getElementById('list1a').innerHTML += links ;
}
}
}
<head>
<meta http-equiv="content-type" content="text/html; charset=utf-8">
</head>
<body>
<input type="text" value="abba" id="queryText" size="80">
<button type="button" onclick="searchQ()">Search 50 videos</button>
<br><br>
<div id='list1a' style="width:750px;height:300px;overflow:auto;
text-align:left;background-color:#eee;line-height:150%;padding:10px">
</div>
I used the original code that Tom posted, It gave me 403 access permission error. When I went back to my api console & checked my api access time, it was expired. So I recreated the access time for the api. It regenerated new time. And the code worked fine with results.
Simply i must make request from a web server.
Thanks all for your reply

Reading HTML header info of files via JS

I have a product list that is generated by asp
I have product description for each product in a html file
each html file is named: <product.id>.html<br/>
html file size is only 1-3 kb
Within the html file is <title> and <meta name="description" content="..." />
I want to access these in an efficient way so that I can output this as e.g.:
document.write(<product.id>.html.title);<br/>
document.write(<product.id>.html.description);
I have a working solution for the individual product, where I use the description file - but hope to find a more efficient / simple approach. Preferably, I want to avoid having 30+ hidden iframes - google might think that I am trying to tamper with search result and blacklist my page...
Current code:
<iframe src="myfile.html" id="product" style="display:none"> </iframe>
<script type="text/javascript">
document.getElementById('product').onload = function(){
var d = window.frames[frame].document;
var title = d.title : ' ';
var keywords = d.getElementsByName('keywords')[0].getAttribute('content', 0) : ' ';
var descript = d.getElementsByName('description')[0].getAttribute('content', 0) : ' ';
}
</script>
As mentioned here on another Stack Overflow question, you could use:
document.title = "This is the new page title.";
and looking here gives us :
document.getElementsByTagName('meta').content = "New content here";
or:
document.getElementsByTagName('meta').name = "NewName";
With these, you should be able to read and write your tags as needed, I've only used a few examples here, there's surely more.
You could load your files with AJAX. For example (using jQuery):
$.get('myfile.html', function(data){
var title = $(data).find('head title').text();
var keywords = $(data).find('head meta[name="keywords"]').attr('content');
var descript = $(data).find('head meta[name="description"]').attr('content');
});
Here you find the jQuery documentation about using jQuery.get
Found this solution:
<script>
var xhr = $.ajax({
type: "GET",
url: "/files/billeder/ecom/beskrivelser/<!--#Ecom:Group.Number-->.html",
success: function(msg){
msg = msg.split('content="')[1];
msg = msg.split('"')[0];
document.getElementById("a_<!--#Ecom:Group.Number-->").innerHTML = "<p>" + msg + "</p>";
Not yet very elegant... but it works...

Jquery load remote page element according to a string in current page url

I'm new in Jquery, I would like to have Jquery code to get the current page url and if the url contains certain string then load remote element.
example:
i have the page urls like this:
"http://......./Country/AU/result-search-to-buy"
"http://......./Country/CA/result-search-to-buy"
"http://......./Country/UK/result-search-to-buy"
the part "/Country/AU" is what I need to determine which page element I should load in, then if "AU" I load from "/state-loader.html .state-AU", if "CA" I load from "/state-loader.html .state-CA"
I have a builtin module "{module_pageaddress}" to get the value of the current page url, I just dont know the Jquery logic to let it work.
I expect something like this:
if {module_pageaddress} contains "/Country/AU/"
$('#MyDiv').load('state-loader.html .state-AU');
if {module_pageaddress} contains "/Country/CA/"
$('#MyDiv').load('state-loader.html .state-CA');
please help and many thanks.
Here is some code:
<!DOCTYPE html>
<html>
<head>
<title>jQuery test page</title>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.8.2/jquery.min.js" type="text/javascript"></script>
<script type="text/javascript">
function loadContent(elementSelector, sourceURL) {
$(""+elementSelector+"").load(""+sourceURL+"");
}
function stateURL() {
var startOfResult = '../../state-loader.html #state-';
var match = (/(?:\/Country\/)(AU|US|CA|UK)(?:\/)/).exec(window.location.pathname);
if (match) {
return startOfResult + match[1];
} else {
return startOfResult + 'AU';
}
}
</script>
</head>
<body>
Link 1
<div id="content">content will be loaded here</div>
</body>
</html>
And the file to load the different content for the states:
<!DOCTYPE html>
<html>
<head>
</head>
<body>
<div id="state-US">Go USA!</div>
<div id="state-CA">Go Canada!</div>
<div id="state-AU">Go Australia!</div>
<div id="state-UK">Go United Kingdom!</div>
</body>
</html>
See it work here:
http://www.quirkscode.com/flat/forumPosts/loadElementContents/Country/US/loadElementContents.html
Replace .../US/... with .../AU/..., etc. to see how it behaves.
Original post where I got the ideas/original code:
http://frinity.blogspot.com/2008/06/load-remote-content-into-div-element.html
You can try
var countryCode = ... // parse the country code from your module
$('#yourDiv').load('state-loader.html .state-' + countryCode);
See more examples of .load() here.
As far as pulling the url path you can do the following
var path_raw = document.location.path,
path_array = path_raw.split("/");
Then, you could do something like this:
$.ajax({
url: "./remote_data.php?country=" + path_array[0] + "&state=" + path_array[1],
type: "GET",
dataType: "JSON",
cache: false,
success: function(data){
// update all your elements on the page with the data you just grabbed
}
});
Use my one line javascript function for getting an array of the URL segments: http://joshkoberstein.com/blog/2012/09/get-url-segments-with-javascript
Then, define the variable $countrySegment to be the segment number that the country code is in.
For example:
/segment1/segment2/CA/
(country code would be segment 3)
Then, check if the 3rd array index is set and if said index is either 'CA' or 'AU'. If so, proceed with the load, substituting in the country-code segment into the .html filename
function getSegments(){
return location.pathname.split('/').filter(function(e){return e});
}
//set what segment the country code is in
$countrySegment = 3;
//get the segments
$segments = getSegments();
//check if segment is set
//and if segment is either 'AU' or 'CA'
if(typeof $segments[$countrySegment-1] !==undefined && ($segments[$countrySegment-1] == 'AU' || $segments[$countrySegment-1] == 'CA')){
$countryCode = $segments[$countrySegment-1];
$('#target').load('state-loader.html .state-' + $countryCode);
}
var result= window.location.pathname.match(/\/Country\/([A-Z]+)\//);
if(result){
$('#MyDiv').load('state-loader.html .state-' + result[1]);
}

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