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   1  
   2  /**
   3   * Add functionality to the profile drag and drop table.
   4   *
   5   * This behavior is dependent on the tableDrag behavior, since it uses the
   6   * objects initialized in that behavior to update the row. It shows and hides
   7   * a warning message when removing the last field from a profile category.
   8   */
   9  Drupal.behaviors.profileDrag = function(context) {
  10    var table = $('#profile-fields');
  11    var tableDrag = Drupal.tableDrag['profile-fields']; // Get the profile tableDrag object.
  12  
  13    // Add a handler for when a row is swapped, update empty categories.
  14    tableDrag.row.prototype.onSwap = function(swappedRow) {
  15      var rowObject = this;
  16      $('tr.category-message', table).each(function() {
  17        // If the dragged row is in this category, but above the message row, swap it down one space.
  18        if ($(this).prev('tr').get(0) == rowObject.element) {
  19          // Prevent a recursion problem when using the keyboard to move rows up.
  20          if ((rowObject.method != 'keyboard' || rowObject.direction == 'down')) {
  21            rowObject.swap('after', this);
  22          }
  23        }
  24        // This category has become empty
  25        if ($(this).next('tr').is(':not(.draggable)') || $(this).next('tr').size() == 0) {
  26          $(this).removeClass('category-populated').addClass('category-empty');
  27        }
  28        // This category has become populated.
  29        else if ($(this).is('.category-empty')) {
  30          $(this).removeClass('category-empty').addClass('category-populated');
  31        }
  32      });
  33    };
  34  
  35    // Add a handler so when a row is dropped, update fields dropped into new categories.
  36    tableDrag.onDrop = function() {
  37      dragObject = this;
  38      if ($(dragObject.rowObject.element).prev('tr').is('.category-message')) {
  39        var categoryRow = $(dragObject.rowObject.element).prev('tr').get(0);
  40        var categoryNum = categoryRow.className.replace(/([^ ]+[ ]+)*category-([^ ]+)-message([ ]+[^ ]+)*/, '$2');
  41        var categoryField = $('select.profile-category', dragObject.rowObject.element);
  42        var weightField = $('select.profile-weight', dragObject.rowObject.element);
  43        var oldcategoryNum = weightField[0].className.replace(/([^ ]+[ ]+)*profile-weight-([^ ]+)([ ]+[^ ]+)*/, '$2');
  44  
  45        if (!categoryField.is('.profile-category-'+ categoryNum)) {
  46          categoryField.removeClass('profile-category-' + oldcategoryNum).addClass('profile-category-' + categoryNum);
  47          weightField.removeClass('profile-weight-' + oldcategoryNum).addClass('profile-weight-' + categoryNum);
  48  
  49          categoryField.val(categoryField[0].options[categoryNum].value);
  50        }
  51      }
  52    };
  53  };