"Utilize the attr attribute to showcase an image within an HTML select element

I'm trying to showcase the flag of each country in a dropdown menu. Here is the code I attempted:

<select id="slcCountry">
    <option flag="https://restcountries.eu/data/afg.svg">AFG</option>
    <option flag="https://restcountries.eu/data/ala.svg">ALA</option>
    <option flag="https://restcountries.eu/data/alb.svg">ALB</option>
</select>

Below is the CSS to display the images:

select option {
    background-image: url(attr(flag));
    background-repeat: no-repeat;
    background-size: 30px;
    background-position: 10px 6px;
    width: 32px;
    height: 34px;
}

I need assistance with displaying each flag image in the list provided above. Can anyone help me out?

jqueryhtmlcsshtml-select

Answer №1

If you want to use custom attributes, it's better to stick with HTML5 data attributes instead of non-valid flag attributes.

Implementing this feature with a simple select might not be easy, but using a plugin along with some CSS and JavaScript tricks can make it possible.

I opted for the bootstrap select plugin in conjunction with Bootstrap 3 and jQuery to achieve the desired result:

Check out the code snippet below:

$(function() {

  $('.selectpicker').selectpicker({
    size: 4
  });
  var $button = $("button[data-id='slcCountry']");
  $("#slcCountry option").each(function(i, el) {
    var flag = $(el).data("flag");
    if (flag)
      $button.next().find("li[data-original-index=" + i + "] a").css("background-image", "url(" + flag + ")");
  });

  $("#slcCountry").on("change", function(e) {
    var flag = $("#slcCountry option:selected").data("flag");
    if (flag)
      $button.find(".filter-option").css("background-image", "url(" + flag + ")");
    else
      $button.find(".filter-option").css("background-image", "url('')")
  });

  $('.selectpicker').trigger('change');

});
#img {
  width: 200px;
  height: 150px;
}

.dropdown-menu ul li a,
button[data-id='slcCountry'] .filter-option {
  background-size: 25px;
  background-position-y: center;
  background-repeat: no-repeat;
  background-position-x: 95%;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" integrity="sha384-BVYiiSIFeK1dGmJRAkycuHAHRg32OmUcww7on3RYdg4Va+PmSTsz/K68vbdEjh4u" crossorigin="anonymous">
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js" integrity="sha384-Tc5IQib027qvyjSMfHjOMaLkfuWVxZxUPnCJA7l2mCWNIpG9mGCD8wGNIcPD7Txa" crossorigin="anonymous"></script>
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/bootstrap-select/1.12.4/css/bootstrap-select.min.css">
<script src="https://cdnjs.cloudflare.com/ajax/libs/bootstrap-select/1.12.4/js/bootstrap-select.min.js"></script>
<select class="selectpicker" id="slcCountry">
    <option data-flag="https://restcountries.eu/data/afg.svg">AFG</option>
    <option data-flag="https://restcountries.eu/data/dza.svg">DZA</option>
    <option data-flag="https://restcountries.eu/data/alb.svg">ALB</option>
</select>

Answer №2

Here is my solution utilizing jQuery:

It is worth noting that the code snippet provided may encounter issues due to the following reasons:

  1. The ability to set a background for an option element is not fully supported on major webkit browsers. For alternative methods to incorporate images in options, please refer to this question and answer thread:

  2. The images are being hosted over HTTPS.

$(document).ready(function(){
  $("option[flag]").each(function(){
    $(this).css("background-image","url('"+ $(this).attr("flag") +"')");
  })

})
select option {
    background-repeat: no-repeat;
    background-size: 30px;
    background-position: 10px 6px;
    width: 32px;
    height: 34px;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<select id="slcCountry">
    <option flag="https://restcountries.eu/data/afg.svg">AFG</option>
    <option flag="https://restcountries.eu/data/ala.svg">ALA</option>
    <option flag="https://restcountries.eu/data/alb.svg">ALB</option>
</select>

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