(function ($) {

/**

 * Provide the summary information for the block settings vertical tabs.

 */

Drupal.behaviors.blockSettingsSummary = {

  attach: function (context) {

    // The drupalSetSummary method required for this behavior is not available

    // on the Blocks administration page, so we need to make sure this

    // behavior is processed only if drupalSetSummary is defined.

    if (typeof jQuery.fn.drupalSetSummary == 'undefined') {

      return;

    }

    $('fieldset#edit-path', context).drupalSetSummary(function (context) {

      if (!$('textarea[name="pages"]', context).val()) {

        return Drupal.t('Not restricted');

      }

      else {

        return Drupal.t('Restricted to certain pages');

      }

    });

    $('fieldset#edit-node-type', context).drupalSetSummary(function (context) {

      var vals = [];

      $('input[type="checkbox"]:checked', context).each(function () {

        vals.push($.trim($(this).next('label').html()));

      });

      if (!vals.length) {

        vals.push(Drupal.t('Not restricted'));

      }

      return vals.join(', ');

    });

    $('fieldset#edit-role', context).drupalSetSummary(function (context) {

      var vals = [];

      $('input[type="checkbox"]:checked', context).each(function () {

        vals.push($.trim($(this).next('label').html()));

      });

      if (!vals.length) {

        vals.push(Drupal.t('Not restricted'));

      }

      return vals.join(', ');

    });

    $('fieldset#edit-user', context).drupalSetSummary(function (context) {

      var $radio = $('input[name="custom"]:checked', context);

      if ($radio.val() == 0) {

        return Drupal.t('Not customizable');

      }

      else {

        return $radio.next('label').html();

      }

    });

  }

};

/**

 * Move a block in the blocks table from one region to another via select list.

 *

 * This behavior is dependent on the tableDrag behavior, since it uses the

 * objects initialized in that behavior to update the row.

 */

Drupal.behaviors.blockDrag = {

  attach: function (context, settings) {

    // tableDrag is required and we should be on the blocks admin page.

    if (typeof Drupal.tableDrag == 'undefined' || typeof Drupal.tableDrag.blocks == 'undefined') {

      return;

    }

    var table = $('table#blocks');

    var tableDrag = Drupal.tableDrag.blocks; // Get the blocks tableDrag object.

    // Add a handler for when a row is swapped, update empty regions.

    tableDrag.row.prototype.onSwap = function (swappedRow) {

      checkEmptyRegions(table, this);

    };

    // A custom message for the blocks page specifically.

    Drupal.theme.tableDragChangedWarning = function () {

      return '<div class="messages warning">' + Drupal.theme('tableDragChangedMarker') + ' ' + Drupal.t('The changes to these blocks will not be saved until the <em>Save blocks</em> button is clicked.') + '</div>';

    };

    // Add a handler so when a row is dropped, update fields dropped into new regions.

    tableDrag.onDrop = function () {

      dragObject = this;

      // Use "region-message" row instead of "region" row because

      // "region-{region_name}-message" is less prone to regexp match errors.

      var regionRow = $(dragObject.rowObject.element).prevAll('tr.region-message').get(0);

      var regionName = regionRow.className.replace(/([^ ]+[ ]+)*region-([^ ]+)-message([ ]+[^ ]+)*/, '$2');

      var regionField = $('select.block-region-select', dragObject.rowObject.element);

      // Check whether the newly picked region is available for this block.

      if ($('option[value=' + regionName + ']', regionField).length == 0) {

        // If not, alert the user and keep the block in its old region setting.

        alert(Drupal.t('The block cannot be placed in this region.'));

        // Simulate that there was a selected element change, so the row is put

        // back to from where the user tried to drag it.

        regionField.change();

      }

      else if ($(dragObject.rowObject.element).prev('tr').is('.region-message')) {

        var weightField = $('select.block-weight', dragObject.rowObject.element);

        var oldRegionName = weightField[0].className.replace(/([^ ]+[ ]+)*block-weight-([^ ]+)([ ]+[^ ]+)*/, '$2');

        if (!regionField.is('.block-region-' + regionName)) {

          regionField.removeClass('block-region-' + oldRegionName).addClass('block-region-' + regionName);

          weightField.removeClass('block-weight-' + oldRegionName).addClass('block-weight-' + regionName);

          regionField.val(regionName);

        }

      }

    };

    // Add the behavior to each region select list.

    $('select.block-region-select', context).once('block-region-select', function () {

      $(this).change(function (event) {

        // Make our new row and select field.

        var row = $(this).closest('tr');

        var select = $(this);

        tableDrag.rowObject = new tableDrag.row(row);

        // Find the correct region and insert the row as the last in the region.

        table.find('.region-' + select[0].value + '-message').nextUntil('.region-message').last().before(row);

        // Modify empty regions with added or removed fields.

        checkEmptyRegions(table, row);

        // Remove focus from selectbox.

        select.get(0).blur();

      });

    });

    var checkEmptyRegions = function (table, rowObject) {

      $('tr.region-message', table).each(function () {

        // If the dragged row is in this region, but above the message row, swap it down one space.

        if ($(this).prev('tr').get(0) == rowObject.element) {

          // Prevent a recursion problem when using the keyboard to move rows up.

          if ((rowObject.method != 'keyboard' || rowObject.direction == 'down')) {

            rowObject.swap('after', this);

          }

        }

        // This region has become empty.

        if ($(this).next('tr').is(':not(.draggable)') || $(this).next('tr').length == 0) {

          $(this).removeClass('region-populated').addClass('region-empty');

        }

        // This region has become populated.

        else if ($(this).is('.region-empty')) {

          $(this).removeClass('region-empty').addClass('region-populated');

        }

      });

    };

  }

};

})(jQuery);