(function ($) {

Drupal.behaviors.tokenTree = {
  attach: function (context, settings) {
    $('table.token-tree', context).once('token-tree', function () {
      $(this).treeTable();
    });
  }
};

Drupal.behaviors.tokenDialog = {
  attach: function (context, settings) {
    $('a.token-dialog', context).once('token-dialog').click(function() {
      var url = $(this).attr('href');
      var dialog = $('<div style="display: none" class="loading">' + Drupal.t('Loading token browser...') + '</div>').appendTo('body');
      dialog.dialog({
        title: $(this).attr('title') || Drupal.t('Available tokens'),
        width: 700,
        close: function(event, ui) {
          dialog.remove();
        }
      });
      // Load the token tree using AJAX.
      dialog.load(
        url,
        {},
        function (responseText, textStatus, XMLHttpRequest) {
          dialog.removeClass('loading');
        }
      );
      // Prevent browser from following the link.
      return false;
    });
  }
}

Drupal.behaviors.tokenInsert = {
  attach: function (context, settings) {
    // Keep track of which textfield was last selected/focused.
    $('textarea, input[type="text"]', context).focus(function() {
      Drupal.settings.tokenFocusedField = this;
    });

    $('.token-click-insert .token-key', context).once('token-click-insert', function() {
      var newThis = $('<a href="javascript:void(0);" title="' + Drupal.t('Insert this token into your form') + '">' + $(this).html() + '</a>').click(function(){
        if (typeof Drupal.settings.tokenFocusedField == 'undefined') {
          alert(Drupal.t('First click a text field to insert your tokens into.'));
        }
        else {
          var myField = Drupal.settings.tokenFocusedField;
          var myValue = $(this).text();

          //IE support
          if (document.selection) {
            myField.focus();
            sel = document.selection.createRange();
            sel.text = myValue;
          }

          //MOZILLA/NETSCAPE support
          else if (myField.selectionStart || myField.selectionStart == '0') {
            var startPos = myField.selectionStart;
            var endPos = myField.selectionEnd;
            myField.value = myField.value.substring(0, startPos)
                          + myValue
                          + myField.value.substring(endPos, myField.value.length);
          } else {
            myField.value += myValue;
          }

          $('html,body').animate({scrollTop: $(myField).offset().top}, 500);
        }
        return false;
      });
      $(this).html(newThis);
    });
  }
};

})(jQuery);