The jQuery navbar's active class fails to function properly when an href is added

I'm facing a puzzling situation. I created a navbar using jQuery Mobile following the instructions on their official website: jQuery Mobile Navbar Demos

Everything functions smoothly until I introduce href attributes in the list elements within the unordered list (the selected items in the navbar fail to activate):

<link rel="stylesheet" href="https://code.jquery.com/mobile/1.4.5/jquery.mobile-1.4.5.min.css" />
<script src="https://code.jquery.com/jquery-1.11.1.min.js"></script>
<script src="https://code.jquery.com/mobile/1.4.5/jquery.mobile-1.4.5.min.js"></script>
<div id="menu">
  <div data-role="navbar">
    <ul>
      <li><a href="" class="contentUpdate" id="1"><i class="fas fa-swimmer"></i>Swim</a></li>
      <li><a href="" class="contentUpdate" id="2"><i class="fas fa-biking"></i>Cycle</a></li>
      <li><a href="" class="contentUpdate" id="3"><i class="fas fa-running"></i>Run</a></li>
    </ul>
  </div>
  <!-- /navbar -->

</div>

When I modify the href attribute to link to another div (for a webpage where clicking the navbar item changes content), the active class fails to trigger when clicked.

<link rel="stylesheet" href="https://code.jquery.com/mobile/1.4.5/jquery.mobile-1.4.5.min.css" />
<script src="https://code.jquery.com/jquery-1.11.1.min.js"></script>
<script src="https://code.jquery.com/mobile/1.4.5/jquery.mobile-1.4.5.min.js"></script>
<div id="menu">
  <div data-role="navbar">
    <ul>
      <li><a href="#swim" class="contentUpdate" id="1"><i class="fas fa-swimmer"></i>Swim</a></li>
      <li><a href="#cycle" class="contentUpdate" id="2"><i class="fas fa-biking"></i>Cycle</a></li>
      <li><a href="#run" class="contentUpdate" id="3"><i class="fas fa-running"></i>Run</a></li>
    </ul>
  </div>
  <!-- /navbar -->
</div>

I attempted adding a class to the items with jQuery, but it did not produce the desired outcome. When I implement the following code, only the first item fails to become active upon clicking:

$("#1").click(function() {
  $("#1").addClass("ui-btn-active");
});
<link rel="stylesheet" href="https://code.jquery.com/mobile/1.4.5/jquery.mobile-1.4.5.min.css" />
<script src="https://code.jquery.com/jquery-1.11.1.min.js"></script>
<script src="https://code.jquery.com/mobile/1.4.5/jquery.mobile-1.4.5.min.js"></script>
<div id="menu">
  <div data-role="navbar">
    <ul>
      <li><a href="#swim" class="contentUpdate" id="1"><i class="fas fa-swimmer"></i>Swim</a></li>
      <li><a href="#cycle" class="contentUpdate" id="2"><i class="fas fa-biking"></i>Cycle</a></li>
      <li><a href="#run" class="contentUpdate" id="3"><i class="fas fa-running"></i>Run</a></li>
    </ul>
  </div>
  <!-- /navbar -->
</div>

However, the scenario changes when I apply the code below as the remaining two items successfully transition to the active state:

$("#1").click(function() {

  $("#1").addClass("ui-btn-active");
  $("#2").addClass("ui-btn-active");
  $("#3").addClass("ui-btn-active");

});
<link rel="stylesheet" href="https://code.jquery.com/mobile/1.4.5/jquery.mobile-1.4.5.min.css" />
<script src="https://code.jquery.com/jquery-1.11.1.min.js"></script>
<script src="https://code.jquery.com/mobile/1.4.5/jquery.mobile-1.4.5.min.js"></script>
<div id="menu">
  <div data-role="navbar">
    <ul>
      <li><a href="#swim" class="contentUpdate" id="1"><i class="fas fa-swimmer"></i>Swim</a></li>
      <li><a href="#cycle" class="contentUpdate" id="2"><i class="fas fa-biking"></i>Cycle</a></li>
      <li><a href="#run" class="contentUpdate" id="3"><i class="fas fa-running"></i>Run</a></li>
    </ul>
  </div>
  <!-- /navbar -->
</div>

I am perplexed by this behavior. If anyone has insights or suggestions, I would greatly appreciate your help. Here's an example of My Navbar with an active class.

jquerycssjquery-mobilenavbarhref

Answer №1

Merely checking the navbar anchor click is not sufficient. For a solution that also functions with the back-button, or when navigating in code, after transitions, and with an external toolbar, you will need to verify the current page inside the pagecontainerchange trigger and update the navbar accordingly:

$(function(){
  $( "[data-role='header'], [data-role='footer']" ).toolbar({ theme: "a" }).enhanceWithin();
});

$( document ).on( "pagecontainerchange", function(e, ui) {
  if(typeof ui.toPage == "object") {
    var id = $.mobile.activePage.attr("id"),
      navbar = $("[data-role=navbar]"),
      buttons = navbar.find(".ui-btn"),
      current = navbar.find("a[href='#"+id+"']");
    buttons.removeClass($.mobile.activeBtnClass);
    current.addClass($.mobile.activeBtnClass);
  }
});
<!DOCTYPE html>
<html>
  <head>
    <title>Focus Tab</title>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1, user-scalable=no" />
    <link rel="stylesheet" href="https://code.jquery.com/mobile/1.4.5/jquery.mobile-1.4.5.css" />
    <script src="https://code.jquery.com/jquery-2.2.4.js"></script>
    <script src="https://ajax.googleapis.com/ajax/libs/jquerymobile/1.4.5/jquery.mobile.js"></script>
  </head>
  <body>
    <div data-role="header">
      <div id="menu" data-role="navbar">
        <ul>
          <li><a href="#swim" id="1">Swim</a></li>
          <li><a href="#cycle" id="2">Cycle</a></li>
          <li><a href="#run" id="3">Run</a></li>
        </ul>
      </div>
    </div>
    <div id="swim" data-role="page">
      <div data-role="content">Page Swim </div>
    </div>
    <div id="cycle" data-role="page">
      <div data-role="header" data-add-back-btn="true">
        <h3>My app</h3>
      </div>
      <div data-role="content">Page cycle</div>
    </div>
    <div id="run" data-role="page">
      <div data-role="content">Page run</div>
    </div>
  </body>
</html>

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