nextcloud-app-radio/js/navigation.js

var MODULE = (function (radio) {

  /* Click on menus */
  $('#app-navigation ul a').click(function(e) {
    e.preventDefault();
    radio.action_navigate($(this).attr('href'));
  });

  /* Click on a radio station (table entry) and play it */
  $('body').on('click', '.filename', function(e) {
    e.preventDefault();
    var entry_src = $(this).parent().attr('data-src');
    if (entry_src.substring(0,9) == "#station/") {
      var stationid = entry_src.substring(9);
      var stationname = $(this).parent().find('.nametext').text();
      radio.action_play(stationid, stationname);
    } else {
      radio.action_navigate(entry_src);
    }
  });

  /* Save station to favorites */
  $('body').on('click', '.favorite', function(e) {
    e.preventDefault();
    var entry_src = $(this).parent().parent().attr('data-src');
    var stationid = entry_src.substring(9);
    radio.action_favorite(stationid);
  });

  radio.action_load_menu_state = function() {
    var baseUrl = OC.generateUrl('/apps/radio/getMenuState');
    $.get(baseUrl, function ( data ) {
      if ("menu_state" in data) {
        var hashurl = data["menu_state"];
      }
      radio.action_navigate(hashurl);
      return true;
    });
  }

  radio.action_save_menu_state = function(hashurl) {
    var baseUrl = OC.generateUrl('/apps/radio/saveMenuState');
    var settings = {
      "menu_state": hashurl
    };
    $.ajax({
            url: baseUrl,
            method: 'POST',
            contentType: 'application/json',
            data: JSON.stringify(settings)
    }).done(function(data){
      return true;
    });
  }

  radio.action_navigate = function(hashurl) {
      $('#filestable').hide();
      $('#emptycontent').addClass('hidden');
      $('.nofilterresults').addClass('hidden');
      $('.loading').removeClass('hidden');
      $('#app-navigation').find('li').removeClass("active");
      $("tbody > tr").remove();

      history.pushState("", "", hashurl);
      radio.action_save_menu_state(hashurl)

      clearTimeout(radio.searchTimeout);
      radio.searchTimeout = setTimeout(function(){
        switch (hashurl) {
          case "#top":
            $('li.nav-files').addClass('active');
            radio.radio_query(hashurl);
            break;
          case "#recent":
            $('li.nav-recent').addClass('active');
            radio.radio_query(hashurl);
            break;
          case "#favorites":
            $('li.nav-favorites').addClass('active');
            radio.action_load_favorites();
            break;
          case "#categories":
            $('li.nav-categories').addClass('active');
            radio.action_load_categories();
            break;
          case (hashurl.match(/^#categories/) || {}).input:
            $('li.nav-categories').addClass('active');
            radio.radio_query(hashurl);
            break;
        }
      }, 500);
  };

  // On app start, load top list
  if(window.location.hash) {
    var hashurl = window.location.hash;
    radio.action_navigate(hashurl);
  } else {
    radio.action_load_menu_state();
  };

  return radio;
}(MODULE || {}));