@(targetTextId: String, copyButtonId: String, value: String, style: String = "")(html: Html = Html(""))
@if(html.body.nonEmpty){
  <div class="input-group" style="margin-bottom: 0px;">
    @html
    <span class="input-group-btn">
      <span id="@copyButtonId" class="btn btn-default" @if(style.nonEmpty){style="@style"}
        data-clipboard-text="@value" data-placement="bottom" title="copy to clipboard"><i class="octicon octicon-clippy"></i></span>
    </span>
  </div>
} else {
  <span id="@copyButtonId" class="btn btn-default" @if(style.nonEmpty){style="@style"}
    data-clipboard-text="@value" data-placement="bottom" title="copy to clipboard"><i class="octicon octicon-clippy"></i></span>
}
<script>
// copy to clipboard
(function() {
  // if document.execCommand('copy') is available, use it for copy.
  if (document.queryCommandSupported('copy')) {
    var title = $('#@copyButtonId').attr('title');
    $('#@copyButtonId').tooltip({
      @* if default container is used then 2 lines tooltip text is displayd because tooptip width is narrow. *@
      container: 'body'
    });
    $('#@copyButtonId').on('click', function() {
      var target = document.getElementById('@targetTextId');
      if (!target) { @* target's id is incorrect. Fix argument's value *@
        $('#@copyButtonId').attr('title', 'failed to copy').tooltip('fixTitle').tooltip('show');
        return;
      }
      if (typeof target.select === 'function') {
        target.select();
      } else {
        var range = document.createRange();
        range.selectNodeContents(target);
        var selection = window.getSelection();
        selection.removeAllRanges();
        selection.addRange(range);
      }
      document.execCommand('copy');
      $('#@copyButtonId').attr('title', 'copied!').tooltip('fixTitle').tooltip('show');
      $('#@copyButtonId').attr('title', title).tooltip('fixTitle');
    });
  } else {
    // if copy is not supported, remove the copy button
    $('#@copyButtonId').remove();
  }
})();
</script>