jQuery(document).ready(function($) {
/* It should not be needed, latest chrome is caching by itself
  if (ActiveScaffold.config.conditional_get) jQuery.ajaxSettings.ifModified = true;
  jQuery(document).on('ajax:beforeSend', function(event, xhr, settings){
    xhr.cacheUrl = settings.url;
  });
  jQuery(document).on('ajax:success', function(event, data, status, xhr){
    var etag=xhr.getResponseHeader("etag");
    if (etag && xhr.status==304) {
      var key = etag + xhr.cacheUrl;
      xhr.responseText=jQuery(document).data(key);
      var conv = jQuery(document).data('type-'+key);
      if (conv) conv(xhr.responseText);
    }
  });
  jQuery(document).ajaxComplete(function(event, xhr, settings){
    var etag=xhr.getResponseHeader("etag");
    if (etag && settings.ifModified && xhr.responseText) {
      var key = etag + xhr.cacheUrl;
      jQuery(document).data(key, xhr.responseText);
      var contentType = xhr.getResponseHeader('Content-Type');
      for(s in settings.contents) {
        if (settings.contents[s].test(contentType)) {
          var conv = settings.converters['text '+s];
          if (typeof conv == 'function') jQuery(document).data('type-'+key, conv);
          break;
        }
      }
    }
  });
*/
  if (/1\.[2-7]\..*/.test(jQuery().jquery)) {
    var error = 'ActiveScaffold requires jquery 1.8.0 or greater, please use jquery-rails 2.1.x gem or greater';
    if (typeof console != 'undefined') console.error(error);
    else alert(error);
  }

  jQuery(document).on('focus', ':input', function() { ActiveScaffold.last_focus = this; });
  jQuery(document).on('blur', ':input', function(e) { ActiveScaffold.last_focus = e.relatedTarget; });
  jQuery(document).click(function(event) {
    jQuery('.action_group.dyn > ul').hide(); // only hide so action links loading still work
  });
  jQuery(document).on('ajax:beforeSend', 'form.as_form', function(event) {
    var as_form = jQuery(this).closest("form");
    if (as_form.data('loading') == true) {
      ActiveScaffold.disable_form(as_form);
    }
    return true;
  });

  jQuery(document).on('ajax:complete', 'form.as_form', function(event) {
    var as_form = jQuery(this).closest("form");
    if (as_form.data('loading') == true) {
      ActiveScaffold.enable_form(as_form);
    }
  });
  jQuery(document).on('ajax:complete', 'form.live', function(event) {
    ActiveScaffold.focus_first_element_of_form(jQuery(this).closest("form"));
  });
  jQuery(document).on('keyup keypress', 'form.search.live input', function(e) {
    if (e.keyCode == 13) e.preventDefault();
  });
  jQuery(document).on('ajax:error', 'form.as_form', function(event, xhr, status, error) {
    if (event.detail && !xhr) {
      error = event.detail[0];
      status = event.detail[1];
      xhr = event.detail[2];
    }
    var as_div = jQuery(this).closest("div.active-scaffold");
    if (as_div.length) {
      ActiveScaffold.report_500_response(as_div, xhr);
    }
  });
  jQuery(document).on('submit', 'form.as_form:not([data-remote])', function(event) {
    var as_form = jQuery(this).closest("form");
    if (as_form.data('loading') == true) {
      setTimeout("ActiveScaffold.disable_form('" + as_form.attr('id') + "')", 10);
    }
    return true;
  });
  jQuery(document).on('ajax:before', 'a.as_action', function(event) {
    var action_link = ActiveScaffold.ActionLink.get(jQuery(this));
    if (action_link) {
      if (action_link.is_disabled()) {
        return false;
      } else {
        if (action_link.loading_indicator) action_link.loading_indicator.css('visibility','visible');
        action_link.disable();
      }
    }
    return true;
  });
  jQuery(document).on('ajax:success', 'a.as_action', function(event, response) {
    if (event.detail && !response) response = event.detail[0];
    var action_link = ActiveScaffold.ActionLink.get(jQuery(this));
    if (action_link) {
      if (action_link.position) {
        action_link.insert(response);
        if (action_link.hide_target) action_link.target.hide();
        if (action_link.hide_content) action_link.content.hide();
      } else {
        if (action_link.tag.hasClass('toggle')) {
          action_link.tag.closest('.action_group,.actions').find('.toggle.active').removeClass('active');
          action_link.tag.addClass('active');
        }
        action_link.enable();
      }
      jQuery(this).trigger('as:action_success', action_link);
      if (action_link.loading_indicator) action_link.loading_indicator.css('visibility','hidden');
    }
    return true;
  });
  jQuery(document).on('ajax:error', 'a.as_action', function(event, xhr, status, error) {
    if (event.detail && !xhr) {
      error = event.detail[0];
      status = event.detail[1];
      xhr = event.detail[2];
    }
    var action_link = ActiveScaffold.ActionLink.get(jQuery(this));
    if (action_link) {
      ActiveScaffold.report_500_response(action_link.scaffold_id(), xhr);
      action_link.enable();
    }
    return true;
  });
  jQuery(document).on('ajax:before', 'a.as_cancel', function(event) {
    var as_cancel = jQuery(this);
    var action_link = ActiveScaffold.find_action_link(as_cancel);

    if (action_link) {
      var cancel_url = as_cancel.attr('href');
      var refresh_data = action_link.tag.data('cancel-refresh') || as_cancel.data('refresh');
      if (!refresh_data || !cancel_url) {
        action_link.close();
        return false;
      }
    }
    return true;
  });
  jQuery(document).on('ajax:success', 'a.as_cancel', function(event) {
    var link = jQuery(this), action_link = ActiveScaffold.find_action_link(link);

    if (action_link && action_link.position) {
      action_link.close();
    } else if (link.hasClass('reset')) {
      var form = link.closest('form');
      if (form.is('.search')) form.find(':input:visible:not([type=submit])').val('');
      else form.trigger('reset');
    }
    return true;
  });
  jQuery(document).on('ajax:error', 'a.as_cancel', function(event, xhr, status, error) {
    if (event.detail && !xhr) {
      error = event.detail[0];
      status = event.detail[1];
      xhr = event.detail[2];
    }
    var action_link = ActiveScaffold.find_action_link(jQuery(this));
    if (action_link) {
      ActiveScaffold.report_500_response(action_link.scaffold_id(), xhr);
    }
    return true;
  });
  jQuery(document).on('ajax:before', 'a.as_sort', function(event) {
    var as_sort = jQuery(this);
    as_sort.closest('th').addClass('loading');
    return true;
  });
  jQuery(document).on('ajax:error', 'a.as_sort', function(event, xhr, status, error) {
    if (event.detail && !xhr) {
      error = event.detail[0];
      status = event.detail[1];
      xhr = event.detail[2];
    }
    var as_scaffold = jQuery(this).closest('.active-scaffold');
    ActiveScaffold.report_500_response(as_scaffold, xhr);
    jQuery(this).closest('th').removeClass('loading');
    return true;
  });
  jQuery(document).on('mouseenter mouseleave', 'td.in_place_editor_field', function(event) {
    var td = jQuery(this), span = td.find('span.in_place_editor_field');
    if (event.type == 'mouseenter') {
      if (td.hasClass('empty') || typeof(span.data('editInPlace')) === 'undefined') td.find('span').addClass("hover");
     }
    if (event.type == 'mouseleave') {
      if (td.hasClass('empty') || typeof(span.data('editInPlace')) === 'undefined') td.find('span').removeClass("hover");
    }
    return true;
  });
  jQuery(document).on('click', 'td.in_place_editor_field, th.as_marked-column_heading', function(event) {
    var span = jQuery(this).find('span.in_place_editor_field');
    span.data('addEmptyOnCancel', jQuery(this).hasClass('empty'));
    jQuery(this).removeClass('empty');
    if (span.data('editInPlace')) span.trigger('click.editInPlace');
    else ActiveScaffold.in_place_editor_field_clicked(span);
  });
  jQuery(document).on('ajax:before', 'a.as_paginate',function(event) {
    var as_paginate = jQuery(this);
    as_paginate.prevAll('img.loading-indicator').css('visibility','visible');
    return true;
  });
  jQuery(document).on('ajax:error', 'a.as_paginate', function(event, xhr, status, error) {
    if (event.detail && !xhr) {
      error = event.detail[0];
      status = event.detail[1];
      xhr = event.detail[2];
    }
    var as_scaffold = jQuery(this).closest('.active-scaffold');
    ActiveScaffold.report_500_response(as_scaffold, xhr);
    return true;
  });
  jQuery(document).on('ajax:complete', 'a.as_paginate', function(event) {
    jQuery(this).prevAll('img.loading-indicator').css('visibility','hidden');
    return true;
  });
  jQuery(document).on('ajax:before', 'a.as_add_existing, a.as_replace_existing', function(event) {
    var prev = jQuery(this).prev();
    if (!prev.is(':input')) prev = prev.find(':input');
    var id = prev.val();
    if (id) {
      if (!jQuery(this).data('href')) jQuery(this).data('href', jQuery(this).attr('href'));
      jQuery(this).attr('href', jQuery(this).data('href').replace('--ID--', id));
      return true;
    } else return false;
  });
  jQuery(document).on('ajax:complete', '.action_group.dyn > ul a', function(event) {
    var action_link = ActiveScaffold.find_action_link(event.target);
    if (action_link && action_link.loading_indicator) action_link.loading_indicator.css('visibility','hidden');
    jQuery(event.target).closest('.action_group.dyn > ul').remove();
  });

  jQuery(document).on('change', 'input.update_form:not(.recordselect), textarea.update_form, select.update_form, .checkbox-list.update_form input:checkbox', function(event) {
    var element = jQuery(this);
    var form_element;
    var value, additional_params;
    if (element.is(".checkbox-list input:checkbox")) {
      form_element = element.closest('.checkbox-list')
      value = form_element.find(':checked').map(function(item){return $(this).val();}).toArray();
      additional_params = (element.is(':checked') ? '_added=' : '_removed=') + element.val();
    } else {
      value = element.is("input:checkbox:not(:checked)") ? null : element.val();
      form_element = element;
    }
    ActiveScaffold.update_column(form_element, form_element.data('update_url'), form_element.data('update_send_form'), element.attr('id'), value, additional_params);
    return true;
  });
  jQuery(document).on('click', 'a.refresh-link', function(event) {
    event.preventDefault();
    var element = jQuery(this);
    var form_element = element.prev();
    var value;
    if (form_element.is(".checkbox-list")) {
      value = form_element.find(':checked').map(function(item){return $(this).val();}).toArray();
      form_element = form_element.parent().find("input:checkbox"); // parent is needed for draggable-list, checked list may be empty
    } else value = form_element.is("input:checkbox:not(:checked)") ? null : form_element.val();
    ActiveScaffold.update_column(form_element, element.attr('href'), element.data('update_send_form'), form_element.attr('id'), value);
  });
  jQuery(document).on('click', 'a.visibility-toggle', function(e) {
    var link = jQuery(this), toggable = jQuery('#' + link.data('toggable'));
    e.preventDefault();
    toggable.toggle();
    link.html((toggable.is(':hidden')) ? link.data('show') : link.data('hide'));
    return false;
  });
  jQuery(document).on('recordselect:change', 'input.recordselect.update_form', function(event, id, label) {
    var element = jQuery(this);
    ActiveScaffold.update_column(element, element.data('update_url'), element.data('update_send_form'), element.attr('id'), id);
    return true;
  });

  jQuery(document).on('change', 'select.as_search_range_option', function(event) {
    var element = jQuery(this);
    ActiveScaffold[element.val() == 'BETWEEN' ? 'show' : 'hide'](element.closest('dd').find('.as_search_range_between'));
    ActiveScaffold[(element.val() == 'null' || element.val() == 'not_null') ? 'hide' : 'show'](element.attr('id').replace(/_opt/, '_numeric'));
    return true;
  });

  jQuery(document).on('change', 'select.as_search_date_time_option', function(event) {
    var element = jQuery(this);
    ActiveScaffold[!(element.val() == 'PAST' || element.val() == 'FUTURE' || element.val() == 'RANGE') ? 'show' : 'hide'](element.attr('id').replace(/_opt/, '_numeric'));
    ActiveScaffold[(element.val() == 'PAST' || element.val() == 'FUTURE') ? 'show' : 'hide'](element.attr('id').replace(/_opt/, '_trend'));
    ActiveScaffold[(element.val() == 'RANGE') ? 'show' : 'hide'](element.attr('id').replace(/_opt/, '_range'));
    return true;
  });

  jQuery(document).on('change', 'select.as_update_date_operator', function(event) {
    ActiveScaffold[jQuery(this).val() == 'REPLACE' ? 'show' : 'hide'](jQuery(this).next());
    ActiveScaffold[jQuery(this).val() == 'REPLACE' ? 'hide' : 'show'](jQuery(this).next().next());
    return true;
  });

  jQuery(document).on('click', '.active-scaffold .sub-form a.destroy', function(event) {
    event.preventDefault();
    ActiveScaffold.delete_subform_record($(this).data('delete-id'));
  });

  jQuery(document).on("click", '.hover_click', function(event) {
    var element = jQuery(this);
    var ul_element = element.children('ul').first();
    if (ul_element.is(':visible')) {
      element.find('ul').hide();
    } else {
      ul_element.show();
    }
    return false;
  });
  jQuery(document).on('click', '.hover_click a.as_action', function(event) {
    var element = jQuery(this).closest('.hover_click');
    if (element.length) {
      element.find('ul').hide();
    }
    return true;
  });

  jQuery(document).on('click', '.message a.close', function(e) {
    ActiveScaffold.hide(jQuery(this).closest('.message'));
    e.preventDefault();
  });

  jQuery(document).on('click', 'form.as_form .no-color', function() {
    var color_field = jQuery(this).parent().next(':input');
    color_field.attr('type', jQuery(this).prop('checked') ? 'hidden' : 'color');
    if (jQuery(this).prop('checked')) color_field.val('');
  });

  jQuery(document).on('click', '.hide-new-subform, .show-new-subform', function(e) {
    var $this = jQuery(this), line = $this.closest('.form-element'),
      subform = line.find('#' + $this.data('subform-id')), radio = false, hide, select;
    if ($this.is('[type=radio]')) {
      radio = true;
      hide = $this.is('.hide-new-subform');
    } else {
      e.preventDefault();
      hide = subform.is(':visible');
    }
    if ($this.data('select-id')) {
      select = line.find('#' + $this.data('select-id'));
      if (select.hasClass('recordselect') || select.is('.no-options')) select = select.next(':hidden').andSelf();
    }
    if (hide) {
      subform.hide().find("input:enabled,select:enabled,textarea:enabled").prop('disabled', true);
      if (select) select.show().prop('disabled', false);
      if (radio) {
        $this.closest('.form-element').find('[name="' + $this.attr('name') + '"].show-new-subform').prop('disabled', false);
      } else $this.html($this.data('select-text'));
    } else {
      if (select) select.hide().prop('disabled', true);
      subform.show().find("input:disabled,select:disabled,textarea:disabled").prop('disabled', false);
      if (radio) $this.prop('disabled', true);
      else {
        $this.data('select-text', $this.html());
        $this.html($this.data('subform-text'));
      }
    }
  });

  jQuery(document).on('turbolinks:before-visit', function() {
    if (history.state.active_scaffold) {
      history.replaceState({turbolinks: true, url: document.location.href}, '', document.location.href);
    }
  });

  jQuery(window).on('popstate', function(e) {
    var state = e.originalEvent.state;
    if (!state || !state.active_scaffold) return;
    jQuery.ajax({
      url: document.location.href,
      data: jQuery.extend({'_popstate': true}, state.active_scaffold),
      dataType: 'script',
      cache: true
    });
    jQuery('.active-scaffold:first th .as_sort:first').closest('th').addClass('loading');
  });

  // call setup on document.ready if Turbolinks not enabled
  if (typeof(Turbolinks) == 'undefined' || !Turbolinks.supported) {
    ActiveScaffold.setup_history_state();
    ActiveScaffold.setup(document);
  }
  if (ActiveScaffold.config.warn_changes) ActiveScaffold.setup_warn_changes();
  jQuery(document).on('as:element_updated as:element_created', function(e, action_link) {
      ActiveScaffold.setup(e.target);
  });
  jQuery(document).on('as:action_success', 'a.as_action', function(e, action_link) {
    ActiveScaffold.setup(action_link.adapter);
  });
  jQuery(document).on('as:element_updated', '.active-scaffold', function(e) {
    if (e.target != this) return;
    var search = $(this).find('form.search');
    if (search.length) ActiveScaffold.focus_first_element_of_form(search);
  });
});

jQuery(document).on('turbolinks:load', function($) {
  ActiveScaffold.setup(document);
});


/* Simple Inheritance
 http://ejohn.org/blog/simple-javascript-inheritance/
*/
(function(){
  var initializing = false, fnTest = /xyz/.test(function(){xyz;}) ? /\b_super\b/ : /.*/;

  // The base Class implementation (does nothing)
  this.Class = function(){};

  // Create a new Class that inherits from this class
  Class.extend = function(prop) {
    var _super = this.prototype;

    // Instantiate a base class (but only create the instance,
    // don't run the init constructor)
    initializing = true;
    var prototype = new this();
    initializing = false;

    // Copy the properties over onto the new prototype
    for (var name in prop) {
      // Check if we're overwriting an existing function
      prototype[name] = typeof prop[name] == "function" &&
        typeof _super[name] == "function" && fnTest.test(prop[name]) ?
        (function(name, fn){
          return function() {
            var tmp = this._super;

            // Add a new ._super() method that is the same method
            // but on the super-class
            this._super = _super[name];

            // The method only need to be bound temporarily, so we
            // remove it when we're done executing
            var ret = fn.apply(this, arguments);
            this._super = tmp;

            return ret;
          };
        })(name, prop[name]) :
        prop[name];
    }

    // The dummy class constructor
    function Class() {
      // All construction is actually done in the init method
      if ( !initializing && this.init )
        this.init.apply(this, arguments);
    }

    // Populate our constructed prototype object
    Class.prototype = prototype;

    // Enforce the constructor to be what we expect
    Class.constructor = Class;

    // And make this class extendable
    Class.extend = arguments.callee;

    return Class;
  };
})();

/*
 $ delayed observer
 (c) 2007 - Maxime Haineault (max@centdessin.com)

 Special thanks to Stephen Goguen & Tane Piper.

 Slight modifications by Elliot Winkler
*/

if (typeof(jQuery.fn.delayedObserver) === 'undefined') {
  (function($){
    $.extend($.fn, {
      delayedObserver: function(callback, delay, options){
        return this.each(function(){
          var el = $(this);
          var op = options || {};
          el.data('oldval', el.val())
            .data('delay', delay === 0 ? delay : (delay || 0.5))
            .data('condition', op.condition || function() { return ($(this).data('oldval') == $(this).val()); })
            .data('callback', callback)
            [(op.event||'keyup')](function(){
              if (el.data('condition').apply(el)) { return; }
              else {
                if (el.data('timer')) { clearTimeout(el.data('timer')); }
                el.data('timer', setTimeout(function(){
                  var callback = el.data('callback')
                  if (callback) callback.apply(el);
                }, el.data('delay') * 1000));
                el.data('oldval', el.val());
              }
            });
          });
      }
    });
  })(jQuery);
};


/*
 * Simple utility methods
 */

var ActiveScaffold = {
  last_focus: null,
  setup: function(container) {
    /* setup some elements on page/form load */
    ActiveScaffold.load_embedded(container);
    ActiveScaffold.enable_js_form_buttons(container);
    ActiveScaffold.live_search(container);
    ActiveScaffold.auto_paginate(container);
    ActiveScaffold.draggable_lists('.draggable-lists', container);
    ActiveScaffold.sliders(container);
    ActiveScaffold.disable_optional_subforms(container);
  },
  setup_history_state: function() {
    if (!jQuery('.active-scaffold').length) return;
    var data = {}, current_search_item = jQuery('.active-scaffold .filtered-message[data-search]');
    if (current_search_item.length) {
      // store user settings enabled, update state with current page, search and sorting
      var sorted_columns = jQuery('th.sorted');
      data.page = jQuery('.active-scaffold-pagination .current').text();
      data.search = current_search_item.data('search');
      if (sorted_columns.length == 1) {
        data.sort = sorted_columns.attr('class').match(/(.+)-column/)[1];
        data.sort_direction = sorted_columns.hasClass('asc') ? 'asc' : 'desc';
      } else { // default search
        jQuery.extend(data, {sort: '', sort_direction: ''});
      }
    }
    ActiveScaffold.add_to_history(document.location.href, data, true);
  },
  live_search: function(element) {
    jQuery('form.search.live input[type=search]', element).delayedObserver(function() {
     jQuery(this).parent().trigger("submit");
    }, ActiveScaffold.config.live_search_delay || 0.5);
  },
  auto_paginate: function(element) {
    var paginate_link = jQuery('.active-scaffold-pagination.auto-paginate a:first', element);
    if (paginate_link.length) {
      var pagination = paginate_link.closest('.auto-paginate');
      pagination.find('.as_paginate').hide();
      pagination.find('.loading-indicator').css({visibility: 'visible'});
      ActiveScaffold.auto_load_page(paginate_link.attr('href'), {auto_pagination: true});
    }
  },
  auto_load_page: function(href, params) {
    jQuery.get(href, params, null, 'script');
  },
  enable_js_form_buttons: function(element) {
    jQuery('.as-js-button', element).show();
  },
  disable_optional_subforms: function(element) {
    jQuery('.sub-form.optional', element).each(function () {
      var $this = jQuery(this), toggle = $this.find('>.visibility-toggle');
      if (toggle.length) {
        var hide = toggle.text() == toggle.data('show');
        $this.find('> [id] > .sub-form-record > .associated-record dl:first').each(function (i) {
          var parent = jQuery(this).parent(), div_id = toggle.data('toggable') + i;
          parent.children().wrapAll('<div id="' + div_id + '">');
          if (hide) parent.find('> div').hide();
          parent.prepend(toggle.clone().data('toggable', div_id));
        });
        toggle.remove();
      }
      if ($this.is(':visible')) {
        var line = $this.closest('.form-element'), toggle = line.find('.show-new-subform[data-subform-id="' + $this.attr('id') + '"]').first();
        if (toggle.is('[type=radio]')) toggle.prop('disabled', true);
        else if (toggle.data('select-id')) {
          select = line.find('#' + toggle.data('select-id'));
          if (select.hasClass('recordselect') || select.is('.no-options')) select = select.next(':hidden').andSelf();
          select.hide().prop('disabled', true);
        }
      } else $this.find("input:enabled,select:enabled,textarea:enabled").prop('disabled', true);
    });
  },
  sliders: function(element) {
    jQuery('.as-slider', element).each(function() {
      var opts = $(this).data('slider');
      jQuery(this).slider(opts);
      if (opts.disabled) jQuery(this).find('.ui-slider-handle').hide();
    });
  },
  load_embedded: function(element) {
    jQuery('.active-scaffold-component .load-embedded', element).each(function(index, item) {
      item = jQuery(item);
      var indicator = item.closest('.active-scaffold-component').find('.loading-indicator');
      indicator.css({visibility: 'visible'});
      item.closest('.active-scaffold-component').load(item.attr('href'), function(response, status, xhr) {
        if (status == 'error') {
          indicator.css({visibility: 'hidden'});
          indicator.after($('<p>').html(item.data('error-msg')).addClass("error-message message server-error"));
        } else jQuery(this).trigger('as:element_updated');
      });
    });
  },
  reload_embedded: function(element_or_selector) {
    var item = jQuery(element_or_selector);
    item.load(item.data('refresh'), function() {
      jQuery(this).trigger('as:element_updated');
    });
  },

  records_for: function(tbody_id) {
    if (typeof(tbody_id) == 'string') tbody_id = '#' + tbody_id;
    return jQuery(tbody_id).children('.record');
  },
  stripe: function(tbody_id) {
    var even = false;
    var rows = this.records_for(tbody_id);

    rows.each(function (index, row_node) {
      row = jQuery(row_node);
      if (row_node.tagName != 'SCRIPT'
        && !row.hasClass("create")
        && !row.hasClass("update")
        && !row.hasClass("inline-adapter")
        && !row.hasClass("active-scaffold-calculations")) {

        if (even) row.addClass("even-record");
        else row.removeClass("even-record");

        even = !even;
      }
    });
  },
  hide_empty_message: function(tbody) {
    if (this.records_for(tbody).length != 0) {
      jQuery(tbody).parent().find('tbody.messages p.empty-message').hide();
    }
  },
  reload_if_empty: function(tbody, url) {
    if (this.records_for(tbody).length == 0) {
      this.reload(url);
    }
  },
  reload: function(url) {
    jQuery.getScript(url);
  },
  removeSortClasses: function(scaffold) {
    if (typeof(scaffold) == 'string') scaffold = '#' + scaffold;
    scaffold = jQuery(scaffold)
    scaffold.find('td.sorted').each(function(index, element) {
      jQuery(element).removeClass("sorted");
    });
    scaffold.find('th.sorted').each(function(index, element) {
      element = jQuery(element);
      element.removeClass("sorted");
      element.removeClass("asc");
      element.removeClass("desc");
    });
  },
  add_to_history: function(url, data, replace) {
    if (!history || !history.pushState) return;
    data = {active_scaffold: data};
    if (replace) history.replaceState(data, null, url);
    else history.pushState(data, null, url);
  },
  decrement_record_count: function(scaffold) {
    // decrement the last record count, firsts record count are in nested lists
    if (typeof(scaffold) == 'string') scaffold = '#' + scaffold;
    scaffold = jQuery(scaffold);
    count = scaffold.find('span.active-scaffold-records').last();
    if (count) count.html(parseInt(count.html(), 10) - 1);
  },
  increment_record_count: function(scaffold) {
    // increment the last record count, firsts record count are in nested lists
    if (typeof(scaffold) == 'string') scaffold = '#' + scaffold;
    scaffold = jQuery(scaffold);
    count = scaffold.find('span.active-scaffold-records').last();
    if (count) count.html(parseInt(count.html(), 10) + 1);
  },
  update_row: function(row, html) {
    var even_row = false;
    var replaced = null;
    if (typeof(row) == 'string') row = '#' + row;
    row = jQuery(row);
    if (row.hasClass('even-record')) even_row = true;

    replaced = this.replace(row, html);
    if (replaced) {
      if (even_row === true) replaced.addClass('even-record');
      ActiveScaffold.highlight(replaced);
    }
  },

  replace: function(element, html) {
    if (typeof(element) == 'string') element = '#' + element;
    element = jQuery(element);
    var new_element = typeof(html) == 'string' ? jQuery.parseHTML(jQuery.trim(html), true) : html;
    new_element = jQuery(new_element);
    if (element.length) {
      element.replaceWith(new_element);
      new_element.trigger('as:element_updated');
      return new_element;
    } else return null;
  },

  replace_html: function(element, html) {
    if (typeof(element) == 'string') element = '#' + element;
    element = jQuery(element);
    if (element.length) {
      element.html(html);
      element.trigger('as:element_updated');
    }
    return element;
  },

  append: function(element, html) {
    if (typeof(element) == 'string') element = '#' + element;
    element = jQuery(element);
    element.append(html);
    element.trigger('as:element_updated');
    return element;
  },

  remove: function(element, callback) {
    if (typeof(element) == 'string') element = '#' + element;
    jQuery(element).trigger('as:element_removed').remove();
    if (callback) callback();
  },

  update_inplace_edit: function(element, value, empty) {
    if (typeof(element) == 'string') element = '#' + element;
    this.replace_html(jQuery(element), value);
    jQuery(element).closest('td')[empty ? 'addClass' : 'removeClass']('empty');
  },

  hide: function(element) {
    if (typeof(element) == 'string') element = '#' + element;
    jQuery(element).hide();
  },

  show: function(element) {
    if (typeof(element) == 'string') element = '#' + element;
    jQuery(element).show();
  },

  reset_form: function(element) {
    if (typeof(element) == 'string') element = '#' + element;
    jQuery(element).get(0).reset();
  },

  disable_form: function(as_form, skip_loading_indicator) {
    if (typeof(as_form) == 'string') as_form = '#' + as_form;
    as_form = jQuery(as_form);
    var loading_indicator = jQuery('#' + as_form.attr('id').replace(/-form$/, '-loading-indicator'));
    if (!skip_loading_indicator && loading_indicator) loading_indicator.css('visibility','visible');
    jQuery('input[type=submit]', as_form).attr('disabled', 'disabled');
    jQuery('.sub-form a.destroy', as_form).addClass('disabled');
    if (jQuery.fn.droppable) jQuery('.draggable-list', as_form).sortable('disable');
    // data-remote-disabled attr instead of set data because is used to in selector later
    jQuery("input:enabled,select:enabled,textarea:enabled", as_form).attr('disabled', 'disabled').attr('data-remove-disabled', true);
  },

  enable_form: function(as_form, skip_loading_indicator) {
    if (typeof(as_form) == 'string') as_form = '#' + as_form;
    as_form = jQuery(as_form)
    var loading_indicator = jQuery('#' + as_form.attr('id').replace(/-form$/, '-loading-indicator'));
    if (!skip_loading_indicator && loading_indicator) loading_indicator.css('visibility','hidden');
    jQuery('input[type=submit]', as_form).removeAttr('disabled');
    jQuery('.sub-form a.destroy.disabled', as_form).removeClass('disabled');
    if (jQuery.fn.droppable) jQuery('.draggable-list', as_form).sortable('enable');
    jQuery("input[data-remove-disabled],select[data-remove-disabled],textarea[data-remove-disabled]", as_form).removeAttr('disabled data-remove-disabled');
  },

  focus_first_element_of_form: function(form_element, form_selector) {
    if (typeof(form_element) == 'string') form_element = '#' + form_element;
    if (typeof(form_selector) == 'undefined') form_selector = jQuery(form_element).is('form') ? '' : 'form ';
    var input = jQuery(form_selector + ":input:visible:first", jQuery(form_element));
    if (input.is('.no-autofocus :input')) return;
    input.focus();
    try { if (input[0] && input[0].value) input[0].selectionStart = input[0].selectionEnd = input[0].value.length; } catch(e) {}
  },

  create_record_row: function(active_scaffold_id, html, options) {
    if (typeof(active_scaffold_id) == 'string') active_scaffold_id = '#' + active_scaffold_id;
    tbody = jQuery(active_scaffold_id).find('tbody.records').first();
    var new_row;

    if (options.insert_at == 'top') {
      tbody.prepend(html);
      new_row = tbody.children('tr.record:first-child');
    } else if (options.insert_at == 'bottom') {
      var rows = tbody.children('tr.record, tr.inline-adapter');
      if (rows.length > 0) {
        new_row = rows.last().after(html).next();
      } else {
        new_row = tbody.append(html).children().last();
      }
    } else if (typeof options.insert_at == 'object') {
      var insert_method, get_method, row, id;
      if (options.insert_at.after) {
        insert_method = 'after';
        get_method = 'next';
      } else {
        insert_method = 'before';
        get_method = 'prev';
      }
      if (id = options.insert_at[insert_method]) row = tbody.children('#' + id);
      if (row && row.length) {
        new_row = row[insert_method](html)[get_method]();
      }
    }
    this.stripe(tbody);
    this.hide_empty_message(tbody);
    this.increment_record_count(tbody.closest('div.active-scaffold'));
    this.highlight(new_row);
    new_row.trigger('as:element_created');
  },

  create_record_row_from_url: function(action_link, url, options) {
    jQuery.get(url, function(row) {
      ActiveScaffold.create_record_row(action_link.scaffold(), row, options);
      action_link.close();
    });
  },

  delete_record_row: function(row, page_reload_url) {
    if (typeof(row) == 'string') row = '#' + row;
    row = jQuery(row);
    var tbody = row.closest('tbody.records');

    row.find('a.disabled').each(function() {;
      var action_link = ActiveScaffold.ActionLink.get(this);
      if (action_link) action_link.close();
    });

    ActiveScaffold.remove(row, function() {
      ActiveScaffold.stripe(tbody);
      ActiveScaffold.decrement_record_count(tbody.closest('div.active-scaffold'));
      if (page_reload_url) ActiveScaffold.reload_if_empty(tbody, page_reload_url);
    });
  },

  delete_subform_record: function(record) {
    if (typeof(record) == 'string') record = '#' + record;
    record = jQuery(record).closest('.sub-form-record');
    this.remove(record);
  },

  report_500_response: function(active_scaffold_id, xhr) {
    var server_error = jQuery(active_scaffold_id).find('.messages-container p.server-error').first();
    if (server_error.is(':visible')) {
      ActiveScaffold.highlight(server_error);
    } else {
      server_error.show();
    }
    if (xhr) server_error.find('.error-500')[xhr.status < 500 ? 'hide' : 'show']();
    ActiveScaffold.scroll_to(server_error, ActiveScaffold.config.scroll_on_close == 'checkInViewport');
  },

  find_action_link: function(element) {
    if (typeof(element) == 'string') element = '#' + element;
    element = jQuery(element);
    return ActiveScaffold.ActionLink.get(element.is('.actions a') ? element : element.closest('.as_adapter'));
  },

  display_dynamic_action_group: function(link, html) {
    var container;
    if (typeof(link) == 'string') link = jQuery('#' + link);
    if (link.closest('td.actions').length) {
      container = link.closest('td').addClass('action_group dyn');
    } else {
      if (link.parent('div.actions').length) link.wrap(jQuery('<div>'));
      container = link.parent().addClass('action_group dyn');
    }
    container.find('> ul').remove();
    container.append(html);
  },

  scroll_to: function(element, checkInViewport) {
    if (typeof checkInViewport == 'undefined') checkInViewport = true;
    if (typeof(element) == 'string') element = '#' + element;
    element = jQuery(element);
    if (!element.length) return;
    if (checkInViewport && element.visible()) return;
    jQuery(document).scrollTop(element.offset().top);
  },

  process_checkbox_inplace_edit: function(checkbox, options) {
    var checked = checkbox.is(':checked'), td = checkbox.closest('td');
    if (checked === true) options['params'] += '&value=1';
    jQuery.ajax({
      url: options.url,
      type: "POST",
      data: options['params'],
      dataType: options.ajax_data_type,
      beforeSend: function(request, settings) {
        if (options.beforeSend) options.beforeSend.call(checkbox, request, settings);
        checkbox.attr('disabled', 'disabled');
        td.closest('tr').find('td.actions .loading-indicator').css('visibility','visible');
      },
      complete: function(request){
        checkbox.removeAttr('disabled');
      },
      success: function(request){
        td.closest('tr').find('td.actions .loading-indicator').css('visibility','hidden');
      }
    });
  },

  read_inplace_edit_heading_attributes: function(column_heading, options) {
    if (column_heading.data('ie-cancel-text')) options.cancel_button = '<button class="inplace_cancel">' + column_heading.data('ie-cancel-text') + "</button>";
    if (column_heading.data('ie-loading-text')) options.loading_text = column_heading.data('ie-loading-text');
    if (column_heading.data('ie-saving-text')) options.saving_text = column_heading.data('ie-saving-text');
    if (column_heading.data('ie-save-text')) options.save_button = '<button class="inplace_save">' + column_heading.data('ie-save-text') + "</button>";
    if (column_heading.data('ie-rows')) options.textarea_rows = column_heading.data('ie-rows');
    if (column_heading.data('ie-cols')) options.textarea_cols = column_heading.data('ie-cols');
    if (column_heading.data('ie-size')) options.text_size = column_heading.data('ie-size');
    if (column_heading.data('ie-use-html')) options.use_html = column_heading.data('ie-use-html');
  },

  create_inplace_editor: function(span, options) {
    span.removeClass('hover');
    span.editInPlace(options);
    span.trigger('click.editInPlace');
  },

  highlight: function(element) {
    if (typeof(element) == 'string') element = jQuery('#' + element);
    if (typeof(element.effect) == 'function') {
      element.effect("highlight", jQuery.extend({}, ActiveScaffold.config.highlight), 3000);
    }
  },

  create_associated_record_form: function(element, content, options) {
    if (typeof(element) == 'string') element = '#' + element;
    var element = jQuery(element);
    content = jQuery(content);
    if (options.singular == false) {
      if (!(options.id && jQuery('#' + options.id).size() > 0)) {
        var tfoot = element.children('tfoot');
        if (tfoot.length) tfoot.before(content);
        else element.append(content);
      }
    } else {
      var current = jQuery('#' + element.attr('id') + ' .sub-form-record')
      if (current[0]) {
        this.replace(current[0], content);
      } else {
        element.prepend(content);
      }
    }
    content.trigger('as:element_created');
    ActiveScaffold.focus_first_element_of_form(content, '');
  },

  render_form_field: function(source, content, options) {
    if (typeof(source) == 'string') source = '#' + source;
    var source = jQuery(source);
    var element = source.closest('.sub-form-record'), selector = '';
    if (element.length == 0) {
      element = source.closest('form > ol.form');
      selector = 'li';
    }
    // find without entering new subforms
    selector = options.is_subform ? '' : selector + ':not(.sub-form) ';
    element = element.find(selector + '.' + options.field_class).first();

    if (element.length) {
      if (options.is_subform == false) {
        if (typeof(options.hidden) != 'undefined') {
          var li = element.closest('li');
          li[options.hidden ? 'addClass' : 'removeClass'].call(li, 'hidden')
        }
        this.replace(element.closest('dl'), content);
      } else {
        this.replace_html(element, content);
      }
    }
  },

  record_select_onselect: function(edit_associated_url, active_scaffold_id, id){
    jQuery.ajax({
      url: edit_associated_url.replace('--ID--', id),
      error: function(xhr, textStatus, errorThrown){
        ActiveScaffold.report_500_response(active_scaffold_id, xhr)
      }
    });
  },

  // element is tbody id
  mark_records: function(element, options) {
    if (typeof(element) == 'string') element = '#' + element;
    var element = jQuery(element);
    if (options.include_checkboxes) {
      var mark_checkboxes = jQuery('#' + element.attr('id') + ' > tr.record td.as_marked-column input[type="checkbox"]');
      mark_checkboxes.prop('checked', !!options.checked);
      mark_checkboxes.val('' + !options.checked);
    }
    if(options.include_mark_all) {
      var mark_all_checkbox = element.prevAll('thead').find('th.as_marked-column_heading span input[type="checkbox"]');
      mark_all_checkbox.prop('checked', !!options.checked);
      mark_all_checkbox.val('' + !options.checked);
    }
  },

  in_place_editor_field_clicked: function(span) {
    // test editor is open
    if (typeof(span.data('editInPlace')) === 'undefined') {
      var options = {show_buttons: true,
                     hover_class: 'hover',
                     element_id: 'editor_id',
                     ajax_data_type: "script",
                     delegate: {
                       willCloseEditInPlace: function(span, options) {
                         if (span.data('addEmptyOnCancel')) span.closest('td').addClass('empty');
                         span.closest('tr').find('td.actions .loading-indicator').css('visibility','visible');
                       },
                       didCloseEditInPlace: function(span, options) {
                         span.closest('tr').find('td.actions .loading-indicator').css('visibility','hidden');
                       }
                     },
                     update_value: 'value'},
          csrf_param = jQuery('meta[name=csrf-param]').first(),
          csrf_token = jQuery('meta[name=csrf-token]').first(),
          my_parent = span.parent(),
          column_heading = null;

      if(!(my_parent.is('td') || my_parent.is('th'))){
        my_parent = span.parents('td').eq(0);
      }

      if (my_parent.is('td')) {
        var column_no = my_parent.prevAll('td').length;
        column_heading = my_parent.closest('table').find('th:eq(' + column_no + ')');
      } else if (my_parent.is('th')) {
        column_heading = my_parent;
      }

      var render_url = column_heading.data('ie-render-url'),
          mode = column_heading.data('ie-mode'),
          record_id = span.data('ie-id') || '';

      ActiveScaffold.read_inplace_edit_heading_attributes(column_heading, options);

      if (span.data('ie-url')) {
        options.url = span.data('ie-url').replace(/__id__/, record_id);
      } else {
        options.url = column_heading.data('ie-url').replace(/__id__/, record_id);
      }

      if (csrf_param) options['params'] = csrf_param.attr('content') + '=' + csrf_token.attr('content');

      if (span.closest('div.active-scaffold').data('eid')) {
        if (options['params'].length > 0) {
          options['params'] += "&";
        }
        options['params'] += ("eid=" + span.closest('div.active-scaffold').data('eid'));
      }

      if (mode === 'clone') {
        options.clone_id_suffix = record_id;
        options.clone_selector = '#' + column_heading.attr('id') + ' .as_inplace_pattern';
        options.field_type = 'clone';
      }

      if (render_url) {
        var plural = false;
        if (column_heading.data('ie-plural')) plural = true;
        options.field_type = 'remote';
        options.editor_url = render_url.replace(/__id__/, record_id)
        if (!options.delegate) options.delegate = {}
        options.delegate.didOpenEditInPlace = function(dom) { dom.trigger('as:element_updated'); }
      }
      var actions, forms;
      options.beforeSend = function(xhr, settings) {
        switch (span.data('ie-update')) {
          case 'update_row':
            actions = span.closest('tr').find('.actions a:not(.disabled)').addClass('disabled');
            break;
          case 'update_table':
            var table = span.closest('.as_content');
            actions = table.find('.actions a:not(.disabled)').addClass('disabled');
            forms = table.find('.as_form');
            ActiveScaffold.disable_form(forms);
            break;
        }
      }
      options.error = options.success = function() {
        if (actions) actions.removeClass('disabled');
        if (forms) ActiveScaffold.enable_form(forms);
      }
      if (mode === 'inline_checkbox') {
        ActiveScaffold.process_checkbox_inplace_edit(span.find('input:checkbox'), options);
      } else {
        ActiveScaffold.create_inplace_editor(span, options);
      }
    }
  },

  update_column: function(element, url, send_form, source_id, val, additional_params) {
    if (!element) element = jQuery('#' + source_id);
    var as_form = element.closest('form.as_form');
    var params = null;

    if (send_form) {
      var selector, base = as_form;
      if (send_form == 'row') base = element.closest('.association-record, form');
      if (selector = element.data('update_send_form_selector'))
        params = base.find(selector).serialize();
      else if (base != as_form) params = base.find(':input').serialize();
      else params = base.serialize();
      params += '&_method=&' + jQuery.param({"source_id": source_id});
      if (additional_params) params += '&' + additional_params;
    } else {
      params = {value: val};
      params.source_id = source_id;
    }

    jQuery.ajax({
      url: url,
      data: params,
      type: 'post',
      dataType: 'script',
      beforeSend: function(xhr, settings) {
        element.nextAll('img.loading-indicator').css('visibility','visible');
        /* force to blur and save previous last_focus, because disable_form will trigger
         * blur on focused element and we will not be able to restore focus later
         */
        var last_focus = ActiveScaffold.last_focus;
        if (last_focus) {
          jQuery(last_focus).blur();
          ActiveScaffold.last_focus = last_focus;
        }
        //ActiveScaffold.disable_form(as_form); // not needed: called from on('ajax:beforeSend', 'form.as_form')

        if (jQuery.rails.fire(element, 'ajax:beforeSend', [xhr, settings])) {
          element.trigger('ajax:send', xhr);
        } else {
          jQuery(ActiveScaffold.last_focus).focus();
          return false;
        }
      },
      success: function(data, status, xhr) {
        as_form.find('#'+element.attr('id')).trigger('ajax:success', [data, status, xhr]);
      },
      complete: function(xhr, status) {
        element = as_form.find('#'+element.attr('id'));
        element.nextAll('img.loading-indicator').css('visibility','hidden');
        var complete_element = element.length ? element : as_form;
        complete_element.trigger('ajax:complete', [xhr, status]);
        if (ActiveScaffold.last_focus) {
          var item = jQuery(ActiveScaffold.last_focus);
          if (item.closest('body').length == 0 && item.attr('id')) item = jQuery('#' + item.attr('id'));
          if (status != 'error') item.focus().select();
        }
      },
      error: function (xhr, status, error) {
        element = as_form.find('#'+element.attr('id'));
        element.trigger('ajax:error', [xhr, status, error]);
      }
    });
  },

  draggable_lists: function(selector_or_elements, parent) {
    var elements;
    if (!jQuery.fn.draggableLists) return;
    if (typeof(selector_or_elements) == 'string') elements = jQuery(selector_or_elements, parent);
    else elements = jQuery(selector_or_elements);
    elements.draggableLists();
  },

  setup_warn_changes: function() {
    var need_confirm = false;
    var unload_message = jQuery('meta[name=unload-message]').attr('content') || ActiveScaffold.config.unload_message || "This page contains unsaved data that will be lost if you leave this page.";
    jQuery(document).on('change input', '.active-scaffold form:not(.search) input, .active-scaffold form:not(.search) textarea, .active-scaffold form:not(.search) select', function() {
      jQuery(this).closest('form').addClass('need-confirm');
    });
    jQuery(document).on('click', '.active-scaffold .as_cancel:not([data-remote]), .active-scaffold input[type=submit]', function() {
      jQuery(this).closest('form').removeClass('need-confirm');
    });
    window.onbeforeunload = function() {
      if (jQuery('form.need-confirm').length) return unload_message;
    };
    jQuery(document).on('turbolinks:before-visit', function(e) {
      if (jQuery('form.need-confirm').length) {
        if (!window.confirm(unload_message)) e.preventDefault();
      }
    });
  }
}


/*
 * URL modification support. Incomplete functionality.
 */
String.prototype.append_params = function(params) {
  var url = this;
  if (url.indexOf('?') == -1) url += '?';
  else if (url.lastIndexOf('&') != url.length) url += '&';

  for(var key in params) {
    if (key) url += (key + '=' + params[key] + '&');
  }

  // the loop leaves a comma dangling at the end of string, chop it off
  url = url.substring(0, url.length-1);
  return url;
};


/**
 * A set of links. As a set, they can be controlled such that only one is "open" at a time, etc.
 */
ActiveScaffold.Actions = new Object();
ActiveScaffold.Actions.Abstract = Class.extend({
  init: function(links, target, loading_indicator, options) {
    this.target = jQuery(target);
    this.loading_indicator = jQuery(loading_indicator);
    this.options = options;
    var _this = this;
    this.links = jQuery.map(links, function(link) {
      var my_link = _this.instantiate_link(link);
      return my_link;
    });
  },

  instantiate_link: function(link) {
    throw 'unimplemented'
  }
});

/**
 * A DataStructures::ActionLink, represented in JavaScript.
 * Concerned with AJAX-enabling a link and adapting the result for insertion into the table.
 */
ActiveScaffold.ActionLink = {
  get: function(element) {
    if (typeof(element) == 'string') element = '#' + element;
    var element = jQuery(element);
    if (element.length > 0) {
      element.data(); // $ 1.4.2 workaround
      if (typeof(element.data('action_link')) === 'undefined' && !element.hasClass('as_adapter')) {
        var parent = element.closest('.actions');
        if (parent.length === 0 || parent.is('td')) {
          // maybe an column action_link
          parent = element.closest('tr.record');
        }
        if (parent.is('tr')) {
          // record action
          var target = parent.find('a.as_action');
          var loading_indicator = parent.find('td.actions .loading-indicator');
          if (!loading_indicator.length) loading_indicator = element.parent().find('.loading-indicator');
          new ActiveScaffold.Actions.Record(target, parent, loading_indicator);
        } else if (parent && parent.is('div')) {
          //table action
          new ActiveScaffold.Actions.Table(parent.find('a.as_action'), parent.closest('div.active-scaffold').find('tbody.before-header').first(), parent.find('.loading-indicator').first());
        }
        element = jQuery(element);
      }
      return element.data('action_link');
    } else {
      return null;
    }
  }
};
ActiveScaffold.ActionLink.Abstract = Class.extend({
  init: function(a, target, loading_indicator) {
    this.tag = jQuery(a);
    this.url = this.tag.attr('href');
    this.method = this.tag.data('method') || 'get';
    this.target = target;
    this.content = target.closest('.active-scaffold').find('.as_content:first');
    this.loading_indicator = loading_indicator;
    this.hide_target = false;
    this.position = this.tag.data('position');
    this.action = this.tag.data('action');

    this.tag.data('action_link', this);
    return this;
  },

  open: function(event) {
    this.tag.click();
  },

  insert: function(content) {
    throw 'unimplemented'
  },

  close: function() {
    if (this.adapter) {
      var link = this;
      ActiveScaffold.remove(this.adapter, function() {
        link.enable();
        if (link.hide_target) link.target.show();
        if (link.hide_content) link.content.show();
        if (ActiveScaffold.config.scroll_on_close) ActiveScaffold.scroll_to(link.target.attr('id'), ActiveScaffold.config.scroll_on_close == 'checkInViewport');
      });
    }
  },

  reload: function() {
    this.close();
    this.open();
  },

  get_new_adapter_id: function() {
    var id = 'adapter_';
    var i = 0;
    while (jQuery(id + i)) i++;
    return id + i;
  },

  enable: function() {
    return this.tag.removeClass('disabled');
  },

  disable: function() {
    return this.tag.addClass('disabled');
  },

  is_disabled: function() {
    return this.tag.hasClass('disabled');
  },

  scaffold_id: function() {
    return '#' + this.tag.closest('div.active-scaffold').attr('id');
  },

  scaffold: function() {
    return this.tag.closest('div.active-scaffold');
  },

  update_flash_messages: function(messages) {
    message_node = jQuery(this.scaffold_id().replace(/-active-scaffold/, '-messages'));
    if (message_node) message_node.html(messages);
  },
  set_adapter: function(element) {
    this.adapter = element;
    this.adapter.addClass('as_adapter');
    this.adapter.data('action_link', this);
    if (this.refresh_url) jQuery('.as_cancel', this.adapter).attr('href', this.refresh_url);
  },
  keep_open: function() {
    return this.tag.data('keep-open');
  }
});

/**
 * Concrete classes for record actions
 */
ActiveScaffold.Actions.Record = ActiveScaffold.Actions.Abstract.extend({
  instantiate_link: function(link) {
    var l = new ActiveScaffold.ActionLink.Record(link, this.target, this.loading_indicator);
    var refresh = this.target.data('refresh');
    if (refresh) l.refresh_url = this.target.closest('.records').data('refresh-record').replace('--ID--', refresh);

    if (l.position) {
      l.url = l.url.append_params({adapter: '_list_inline_adapter'});
      l.tag.attr('href', l.url);
    }
    l.set = this;
    return l;
  }
});

ActiveScaffold.ActionLink.Record = ActiveScaffold.ActionLink.Abstract.extend({
  close_previous_adapter: function() {
    var _this = this;
    jQuery.each(this.set.links, function(index, item) {
      if (item.url != _this.url && item.is_disabled() && !item.keep_open() && item.adapter) {
        ActiveScaffold.remove(item.adapter, function () { item.enable(); });
      }
    });
  },

  insert: function(content) {
    this.close_previous_adapter();

    if (this.position == 'replace') {
      this.position = 'after';
      this.hide_target = true;
    }

    var colspan = this.target.children().length;
    if (content && this.position) {
      content = jQuery(content);
      content.find('.inline-adapter-cell:first').attr('colspan', colspan);
    }
    if (this.position == 'after') {
      this.target.after(content);
      this.set_adapter(this.target.next());
    }
    else if (this.position == 'before') {
      this.target.before(content);
      this.set_adapter(this.target.prev());
    }
    else {
      return false;
    }
    ActiveScaffold.highlight(this.adapter.find('td'));
    ActiveScaffold.focus_first_element_of_form(this.adapter);
  },

  close: function(refreshed_content_or_reload) {
    this._super();
    if (refreshed_content_or_reload) {
      if (typeof refreshed_content_or_reload == 'string') {
        ActiveScaffold.update_row(this.target, refreshed_content_or_reload);
      } else if (this.refresh_url) {
        var target = this.target;
        jQuery.get(this.refresh_url, function(e, status, xhr) {
          ActiveScaffold.update_row(target, xhr.responseText);
        });
      }
    }
  },

  enable: function() {
    var _this = this;
    jQuery.each(this.set.links, function(index, item) {
      if (item.url != _this.url) return;
      item.tag.removeClass('disabled');
    });
  },

  disable: function() {
    var _this = this;
    jQuery.each(this.set.links, function(index, item) {
      if (item.url != _this.url) return;
      item.tag.addClass('disabled');
    });
  },

  set_opened: function() {
    if (this.position == 'after') {
      this.set_adapter(this.target.next());
    }
    else if (this.position == 'before') {
      this.set_adapter(this.target.prev());
    }
    this.disable();
  }
});

/**
 * Concrete classes for table actions
 */
ActiveScaffold.Actions.Table = ActiveScaffold.Actions.Abstract.extend({
  instantiate_link: function(link) {
    var l = new ActiveScaffold.ActionLink.Table(link, this.target, this.loading_indicator);
    if (l.position) {
      l.url = l.url.append_params({adapter: '_list_inline_adapter'});
      l.tag.attr('href', l.url);
    }
    return l;
  }
});

ActiveScaffold.ActionLink.Table = ActiveScaffold.ActionLink.Abstract.extend({
  insert: function(content) {
    if (this.position == 'replace') {
      this.position = 'top';
      this.hide_content = true;
    }

    if (this.position == 'top') {
      this.target.prepend(content);
      this.set_adapter(this.target.children().first());
    }
    else {
      throw 'Unknown position "' + this.position + '"'
    }
    ActiveScaffold.highlight(this.adapter.find('td').first().children().not('script'));
    ActiveScaffold.focus_first_element_of_form(this.adapter);
  }
});