jQuery Mobile Selectmenu preventFocusZoom Option

Last Updated : 26 Jan, 2022

jQuery Mobile is a web-based technology used to make responsive content that can be accessed on all smartphones, tablets, and desktops.

In this article, we will be using the jQuery Mobile Selectmenu preventFocusZoom option. This option is for disabling page zoom temporarily when a custom select is focused, which prevents iOS devices from zooming the page into the select. By default, iOS often zooms into form controls, and the behavior is often unnecessary and intrusive in mobile-optimized layouts.

Syntax:

Initializing the selectmenu with the preventFocusZoom option.

$( ".selector" ).selectmenu({
preventFocusZoom: true
});

Setting the preventFocusZoom option.

$( ".selector" ).selectmenu("option", 
    "preventFocusZoom", true);

Getting the preventFocusZoom option.

var shadow = $( ".selector" )
    .selectmenu( "option", "preventFocusZoom" );

CDN Link: First, add jQuery Mobile scripts needed for your project.

<link rel=”stylesheet” href=”//code.jquery.com/mobile/1.5.0-alpha.1/jquery.mobile-1.5.0-alpha.1.min.css”>
<script src=”//code.jquery.com/jquery-3.2.1.min.js”></script>
<script src=”//code.jquery.com/mobile/1.5.0-alpha.1/jquery.mobile-1.5.0-alpha.1.min.js”></script>

Example: This example describes the jQuery Mobile Selectmenu preventFocusZoom option.

HTML

<!doctype html> 
<html lang="en"> 
  
<head> 
    <meta charset="utf-8"> 
    <meta name="viewport"
          content="width=device-width, initial-scale=1"> 
    <link rel="stylesheet" 
          href= 
"//code.jquery.com/mobile/1.5.0-alpha.1/jquery.mobile-1.5.0-alpha.1.min.css"> 
    <script src= 
"//code.jquery.com/jquery-3.2.1.min.js"> 
    </script> 
    <script src= 
"//code.jquery.com/mobile/1.5.0-alpha.1/jquery.mobile-1.5.0-alpha.1.min.js"> 
    </script> 
</head> 
  
<body> 
    <center> 
        <div data-role="page"> 
            <h1 style="color:green;"> 
                GeeksforGeeks 
            </h1> 
            <h3>jQuery Mobile Selectmenu preventFocusZoom Option</h3> 
            <div role="main" class="ui-content"> 
                <label for="GFG" class="select"> 
                    GeeksforGeeks Courses: 
                </label> 
                <select name="GFG" id="GFG" 
                        data-native-menu="false"> 
                    <option value="C"> 
                      C Programming 
                    </option> 
                    <option value="CPP"> 
                      C++ Programming 
                    </option> 
                    <option value="JAVA"> 
                      Java Programming 
                    </option> 
                    <option value="overnight"> 
                      Python Programming 
                    </option> 
                    <option value="WEB"> 
                      Web Development 
                    </option> 
                </select> 
            </div> 
            <input type="button" id="Button" 
                   value="Value of the preventFocusZoom option"> 
            <div id="log"></div> 
        </div> 
    </center> 
    <script> 
        $(document).ready(function () { 
            $("#GFG").selectmenu({ 
                preventFocusZoom: true 
            }); 
            $("#GFG").selectmenu("option", "preventFocusZoom", true); 
            $("#Button").on('click', function () { 
                var a = $("#GFG").selectmenu("option", "preventFocusZoom"); 
                $('#log').html(a); 
            }); 
        }); 
    </script> 
</body> 
  
</html>