javascript-projects/index.html at master · jedibrillo/javascript-projects · GitHub

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<!DOCTYPE html>
<html lang="en">
  <head>
    <meta http-equiv="content-type" content="text/html; charset=UTF-8">
    <meta name="robots" content="noindex, nofollow">
    <meta name="googlebot" content="noindex, nofollow">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css" rel="stylesheet">
    <script src="https://cdnjs.cloudflare.com/ajax/libs/mustache.js/2.2.1/mustache.js"></script>
    <style type="text/css">
      .cover {
          width: 200px;
          height: 133px;
          display: inline-block;
          background-size: cover;
      }
    </style>
    <title>Spotify Web API - Search</title>
  </head>
  <body>
    <div class="container">
      <h1>Search Spotify</h1>
      <form id="search-form" class="form-group">
        <label class="control-label" for="query">Type a keyword and choose your result type(s), then click on "Search" or press Enter.</label>
        <input type="text" id="query" value="" class="form-control" placeholder="Search Spotify...">
        <input type="submit" id="search" class="btn btn-primary" value="Search">
        <p id="messages"></p>
      </form>
      <div id="results">
      </div>
    </div>
    <script id="album_template" type="x-tmpl-mustache">
      <h2>Albums</h2>
      {{#items}}
      <p>{{ ../name }}</p>
      <div style="background-image:url({{images.2.url}})" data-album-id="{{id}}" class="cover"></div>
      {{/items}}
    </script>
    <script id="artist_template" type="x-tmpl-mustache">
      <h2>Artists</h2>
      {{#items}}
      <p>{{ name }}</p>
      {{#images.2.url}}<div style="background-image:url({{&images.2.url}})" data-album-id="{{id}}" class="cover"></div>{{/images.2.url}}
      {{/items}}
      {{^items}}
      <p>No artists match your search :(</p>
      {{/items}}
    </script>
    <script id="track_template" type="x-tmpl-mustache">
      <h2>Tracks</h2>
      Hello {{ name }}!
    </script>
    <script id="playlist_template" type="x-tmpl-mustache">
      <h2>Playlists</h2>
      Hello {{ name }}!
    </script>
    <script id="searchBoxes_template" type="x-tmpl-mustache">
      {{#searchTypes}}
      <label for="searchType_{{.}}">{{.}}</label>
      <input type="checkbox" id="searchType_{{.}}" name="searchType" class="searchType" value="{{.}}" />
      {{/searchTypes}}
    </script>
    <script type="text/javascript">
      window.onload = function(){
        var form = document.getElementById("search-form"),
            message = document.getElementById("messages"),
            baseSearchURL = "https://api.spotify.com/v1/search?market=US",
            resultContainer = document.getElementById("results"),
            messageClasses = { error : "has-error", success : "has-success", warning : "has-warning"},
            searchTypes = ["album", "artist", "track", "playlist"],
            templateCache = {},
            searchTemplate = document.getElementById("searchBoxes_template").innerHTML,
            searchTypeRendered = "",
            checkedValue = "";

        for (type in searchTypes) {
            templateCache[searchTypes[type]] = document.getElementById(searchTypes[type] + "_template").innerHTML;
            Mustache.parse(templateCache[searchTypes[type]]);
        }
        searchTypeRendered = Mustache.render(searchTemplate, {"searchTypes" : searchTypes});
        form.insertAdjacentHTML('beforeend', searchTypeRendered);

        var HttpClient = function() {
            this.get = function(aUrl, aCallback) {
                var anHttpRequest = new XMLHttpRequest();
                anHttpRequest.onreadystatechange = function() {
                  if (anHttpRequest.readyState == 4 && anHttpRequest.status == 200) {
                    addClass(form,"has-success");
                    aCallback(JSON.parse(anHttpRequest.responseText));
                  }
                }
                anHttpRequest.open( "GET", aUrl, true );
                anHttpRequest.send( null );
            }
        };

        var hasClass = function(ele,cls) {
            return ele.className.match(new RegExp('(\\s|^)'+cls+'(\\s|$)'));
        };
        var addClass = function(ele,cls) {
            if (!hasClass(ele,cls)) ele.className += " "+cls;
        };
        var removeClass = function(ele,cls) {
            if (hasClass(ele,cls)) {
                var reg = new RegExp('(\\s|^)'+cls+'(\\s|$)');
                ele.className=ele.className.replace(reg,' ');
            }
        };
        var removeStatusClasses = function(ele) {
          for (status in messageClasses) {
              if (messageClasses.hasOwnProperty(status)) {
                removeClass(form,messageClasses[status]);
              }
          }
        };

        var searchSpotify = function(keyword) {
          var client = new HttpClient();
          client.get(buildSearchURL(keyword),renderResults);
        };

        var buildSearchURL = function(keyword) {
          var inputElements = document.getElementsByClassName('searchType');
          for(var i=0; inputElements[i]; ++i){
                if(inputElements[i].checked){
                     checkedValue += inputElements[i].value + ",";
                }
          }
          if(checkedValue.length) {
            checkedValue = checkedValue.substring(0, checkedValue.length - 1);
          }

          return baseSearchURL + "&q=" + keyword + "&type=" + checkedValue;
        };

        var renderResults = function(data) {
          removeStatusClasses(form);
          removeStatusClasses(message);
          var output = "",
              typeName = "";
          for (type in searchTypes) {
            typeName = searchTypes[type]+"s";
            if (data[typeName]) {
              output += Mustache.render(templateCache[searchTypes[type]], data[typeName]);
            }
          }
          results.innerHTML = output;
        };

        document.getElementById('search-form').addEventListener('submit', function (e) {
            e.preventDefault();
            removeStatusClasses(form);
            removeStatusClasses(message);
            searchSpotify(document.getElementById('query').value);
        }, false);
      };
    </script>
  </body>
</html>