(function ($) {

Drupal.toolbar = Drupal.toolbar || {};

/**

 * Attach toggling behavior and notify the overlay of the toolbar.

 */

Drupal.behaviors.toolbar = {

  attach: function(context) {

    // Set the initial state of the toolbar.

    $('#toolbar', context).once('toolbar', Drupal.toolbar.init);

    // Toggling toolbar drawer.

    $('#toolbar a.toggle', context).once('toolbar-toggle').click(function(e) {

      Drupal.toolbar.toggle();

      // Allow resize event handlers to recalculate sizes/positions.

      $(window).triggerHandler('resize');

      return false;

    });

  }

};

/**

 * Retrieve last saved cookie settings and set up the initial toolbar state.

 */

Drupal.toolbar.init = function() {

  // Retrieve the collapsed status from a stored cookie.

  var collapsed = $.cookie('Drupal.toolbar.collapsed');

  // Expand or collapse the toolbar based on the cookie value.

  if (collapsed == 1) {

    Drupal.toolbar.collapse();

  }

  else {

    Drupal.toolbar.expand();

  }

};

/**

 * Collapse the toolbar.

 */

Drupal.toolbar.collapse = function() {

  var toggle_text = Drupal.t('Show shortcuts');

  $('#toolbar div.toolbar-drawer').addClass('collapsed');

  $('#toolbar a.toggle')

    .removeClass('toggle-active')

    .attr('title',  toggle_text)

    .html(toggle_text);

  $('body').removeClass('toolbar-drawer').css('paddingTop', Drupal.toolbar.height());

  $.cookie(

    'Drupal.toolbar.collapsed',

    1,

    {

      path: Drupal.settings.basePath,

      // The cookie should "never" expire.

      expires: 36500

    }

  );

};

/**

 * Expand the toolbar.

 */

Drupal.toolbar.expand = function() {

  var toggle_text = Drupal.t('Hide shortcuts');

  $('#toolbar div.toolbar-drawer').removeClass('collapsed');

  $('#toolbar a.toggle')

    .addClass('toggle-active')

    .attr('title',  toggle_text)

    .html(toggle_text);

  $('body').addClass('toolbar-drawer').css('paddingTop', Drupal.toolbar.height());

  $.cookie(

    'Drupal.toolbar.collapsed',

    0,

    {

      path: Drupal.settings.basePath,

      // The cookie should "never" expire.

      expires: 36500

    }

  );

};

/**

 * Toggle the toolbar.

 */

Drupal.toolbar.toggle = function() {

  if ($('#toolbar div.toolbar-drawer').hasClass('collapsed')) {

    Drupal.toolbar.expand();

  }

  else {

    Drupal.toolbar.collapse();

  }

};

Drupal.toolbar.height = function() {

  var $toolbar = $('#toolbar');

  var height = $toolbar.outerHeight();

  // In modern browsers (including IE9), when box-shadow is defined, use the

  // normal height.

  var cssBoxShadowValue = $toolbar.css('box-shadow');

  var boxShadow = (typeof cssBoxShadowValue !== 'undefined' && cssBoxShadowValue !== 'none');

  // In IE8 and below, we use the shadow filter to apply box-shadow styles to

  // the toolbar. It adds some extra height that we need to remove.

  if (!boxShadow && /DXImageTransform\.Microsoft\.Shadow/.test($toolbar.css('filter'))) {

    height -= $toolbar[0].filters.item("DXImageTransform.Microsoft.Shadow").strength;

  }

  return height;

};

})(jQuery);