text: /*
   * Fuel UX Datagrid
   * https://github.com/ExactTarget/fuelux
   *
   * Copyright (c) 2012 ExactTarget
   * Licensed under the MIT license.
   */
  
  define(['require', 'jquery'], function (require) {
  
      var $ = require('jquery');
  
      // Relates to thead .sorted styles in datagrid.less
      var SORTED_HEADER_OFFSET = 22;
  
  
      // DATAGRID CONSTRUCTOR AND PROTOTYPE
  
      var Datagrid = function (element, options) {
          this.$element = $(element);
          this.$thead = this.$element.find('thead');
          this.$tfoot = this.$element.find('tfoot');
          this.$footer = this.$element.find('tfoot th');
          this.$footerchildren = this.$footer.children().show().css('visibility', 'hidden');
          this.$topheader = this.$element.find('thead th');
          this.$searchcontrol = this.$element.find('.datagrid-search');
          this.$filtercontrol = this.$element.find('.filter');
          this.$pagesize = this.$element.find('.grid-pagesize');
          this.$pageinput = this.$element.find('.grid-pager input');
          this.$pagedropdown = this.$element.find('.grid-pager .dropdown-menu');
          this.$prevpagebtn = this.$element.find('.grid-prevpage');
          this.$nextpagebtn = this.$element.find('.grid-nextpage');
          this.$pageslabel = this.$element.find('.grid-pages');
          this.$countlabel = this.$element.find('.grid-count');
          this.$startlabel = this.$element.find('.grid-start');
          this.$endlabel = this.$element.find('.grid-end');
  
          this.$tbody = $('<tbody>').insertAfter(this.$thead);
          this.$colheader = $('<tr>').appendTo(this.$thead);
  
          this.options = $.extend(true, {}, $.fn.datagrid.defaults, options);
  
          // Shim until v3 -- account for FuelUX select or native select for page size:
          if (this.$pagesize.hasClass('select')) {
              this.options.dataOptions.pageSize = parseInt(this.$pagesize.select('selectedItem').value, 10);
          } else {
              this.options.dataOptions.pageSize = parseInt(this.$pagesize.val(), 10);
          }
  
          // Shim until v3 -- account for older search class:
          if (this.$searchcontrol.length <= 0) {
              this.$searchcontrol = this.$element.find('.search');
          }
  
          this.columns = this.options.dataSource.columns();
  
          this.$nextpagebtn.on('click', $.proxy(this.next, this));
          this.$prevpagebtn.on('click', $.proxy(this.previous, this));
          this.$searchcontrol.on('searched cleared', $.proxy(this.searchChanged, this));
          this.$filtercontrol.on('changed', $.proxy(this.filterChanged, this));
          this.$colheader.on('click', 'th', $.proxy(this.headerClicked, this));
  
          if (this.$pagesize.hasClass('select')) {
              this.$pagesize.on('changed', $.proxy(this.pagesizeChanged, this));
          } else {
              this.$pagesize.on('change', $.proxy(this.pagesizeChanged, this));
          }
  
          this.$pageinput.on('change', $.proxy(this.pageChanged, this));
  
          this.renderColumns();
  
          if (this.options.stretchHeight) this.initStretchHeight();
  
          this.renderData();
      };
  
      Datagrid.prototype = {
  
          constructor: Datagrid,
  
          renderColumns: function () {
              var self = this;
  
              this.$footer.attr('colspan', this.columns.length);
              this.$topheader.attr('colspan', this.columns.length);
  
              var colHTML = '';
  
              $.each(this.columns, function (index, column) {
                  colHTML += '<th data-property="' + column.property + '"';
                  if (column.sortable) colHTML += ' class="sortable"';
                  colHTML += '>' + column.label + '</th>';
              });
  
              self.$colheader.append(colHTML);
          },
  
          updateColumns: function ($target, direction) {
              this._updateColumns(this.$colheader, $target, direction);
  
              if (this.$sizingHeader) {
                  this._updateColumns(this.$sizingHeader, this.$sizingHeader.find('th').eq($target.index()), direction);
              }
          },
  
          _updateColumns: function ($header, $target, direction) {
              var className = (direction === 'asc') ? 'icon-chevron-up' : 'icon-chevron-down';
              $header.find('i.datagrid-sort').remove();
              $header.find('th').removeClass('sorted');
              $('<i>').addClass(className + ' datagrid-sort').appendTo($target);
              $target.addClass('sorted');
          },
  
          updatePageDropdown: function (data) {
              var pageHTML = '';
  
              for (var i = 1; i <= data.pages; i++) {
                  pageHTML += '<li><a>' + i + '</a></li>';
              }
  
              this.$pagedropdown.html(pageHTML);
          },
  
          updatePageButtons: function (data) {
              if (data.page === 1) {
                  this.$prevpagebtn.attr('disabled', 'disabled');
              } else {
                  this.$prevpagebtn.removeAttr('disabled');
              }
  
              if (data.page === data.pages) {
                  this.$nextpagebtn.attr('disabled', 'disabled');
              } else {
                  this.$nextpagebtn.removeAttr('disabled');
              }
          },
  
          renderData: function () {
              var self = this;
  
              this.$tbody.html(this.placeholderRowHTML(this.options.loadingHTML));
  
              this.options.dataSource.data(this.options.dataOptions, function (data) {
                  var itemdesc = (data.count === 1) ? self.options.itemText : self.options.itemsText;
                  var rowHTML = '';
  
                  self.$footerchildren.css('visibility', function () {
                      return (data.count > 0) ? 'visible' : 'hidden';
                  });
  
                  self.$pageinput.val(data.page);
                  self.$pageslabel.text(data.pages);
                  self.$countlabel.text(data.count + ' ' + itemdesc);
                  self.$startlabel.text(data.start);
                  self.$endlabel.text(data.end);
  
                  self.updatePageDropdown(data);
                  self.updatePageButtons(data);
  
                  $.each(data.data, function (index, row) {
                      rowHTML += '<tr>';
                      $.each(self.columns, function (index, column) {
                          rowHTML += '<td>' + row[column.property] + '</td>';
                      });
                      rowHTML += '</tr>';
                  });
  
                  if (!rowHTML) rowHTML = self.placeholderRowHTML('0 ' + self.options.itemsText);
  
                  self.$tbody.html(rowHTML);
                  self.stretchHeight();
  
                  self.$element.trigger('loaded');
              });
  
          },
  
          placeholderRowHTML: function (content) {
              return '<tr><td style="text-align:center;padding:20px;border-bottom:none;" colspan="' +
                  this.columns.length + '">' + content + '</td></tr>';
          },
  
          headerClicked: function (e) {
              var $target = $(e.target);
              if (!$target.hasClass('sortable')) return;
  
              var direction = this.options.dataOptions.sortDirection;
              var sort = this.options.dataOptions.sortProperty;
              var property = $target.data('property');
  
              if (sort === property) {
                  this.options.dataOptions.sortDirection = (direction === 'asc') ? 'desc' : 'asc';
              } else {
                  this.options.dataOptions.sortDirection = 'asc';
                  this.options.dataOptions.sortProperty = property;
              }
  
              this.options.dataOptions.pageIndex = 0;
              this.updateColumns($target, this.options.dataOptions.sortDirection);
              this.renderData();
          },
  
          pagesizeChanged: function (e, pageSize) {
              if (pageSize) {
                  this.options.dataOptions.pageSize = parseInt(pageSize.value, 10);
              } else {
                  this.options.dataOptions.pageSize = parseInt($(e.target).val(), 10);
              }
  
              this.options.dataOptions.pageIndex = 0;
              this.renderData();
          },
  
          pageChanged: function (e) {
              var pageRequested = parseInt($(e.target).val(), 10);
              pageRequested = (isNaN(pageRequested)) ? 1 : pageRequested;
              var maxPages = this.$pageslabel.text();
  
              this.options.dataOptions.pageIndex =
                  (pageRequested > maxPages) ? maxPages - 1 : pageRequested - 1;
  
              this.renderData();
          },
  
          searchChanged: function (e, search) {
              this.options.dataOptions.search = search;
              this.options.dataOptions.pageIndex = 0;
              this.renderData();
          },
  
          filterChanged: function (e, filter) {
              this.options.dataOptions.filter = filter;
              this.options.dataOptions.pageIndex = 0;
              this.renderData();
          },
  
          previous: function () {
              this.$nextpagebtn.attr('disabled', 'disabled');
              this.$prevpagebtn.attr('disabled', 'disabled');
              this.options.dataOptions.pageIndex--;
              this.renderData();
          },
  
          next: function () {
              this.$nextpagebtn.attr('disabled', 'disabled');
              this.$prevpagebtn.attr('disabled', 'disabled');
              this.options.dataOptions.pageIndex++;
              this.renderData();
          },
  
          reload: function () {
              this.options.dataOptions.pageIndex = 0;
              this.renderData();
          },
  
          initStretchHeight: function () {
              this.$gridContainer = this.$element.parent();
  
              this.$element.wrap('<div class="datagrid-stretch-wrapper">');
              this.$stretchWrapper = this.$element.parent();
  
              this.$headerTable = $('<table>').attr('class', this.$element.attr('class'));
              this.$footerTable = this.$headerTable.clone();
  
              this.$headerTable.prependTo(this.$gridContainer).addClass('datagrid-stretch-header');
              this.$thead.detach().appendTo(this.$headerTable);
  
              this.$sizingHeader = this.$thead.clone();
              this.$sizingHeader.find('tr:first').remove();
  
              this.$footerTable.appendTo(this.$gridContainer).addClass('datagrid-stretch-footer');
              this.$tfoot.detach().appendTo(this.$footerTable);
          },
  
          stretchHeight: function () {
              if (!this.$gridContainer) return;
  
              this.setColumnWidths();
  
              var targetHeight = this.$gridContainer.height();
              var headerHeight = this.$headerTable.outerHeight();
              var footerHeight = this.$footerTable.outerHeight();
              var overhead = headerHeight + footerHeight;
  
              this.$stretchWrapper.height(targetHeight - overhead);
          },
  
          setColumnWidths: function () {
              if (!this.$sizingHeader) return;
  
              this.$element.prepend(this.$sizingHeader);
  
              var $sizingCells = this.$sizingHeader.find('th');
              var columnCount = $sizingCells.length;
  
              function matchSizingCellWidth(i, el) {
                  if (i === columnCount - 1) return;
  
                  var $el = $(el);
                  var $sourceCell = $sizingCells.eq(i);
                  var width = $sourceCell.width();
  
                  // TD needs extra width to match sorted column header
                  if ($sourceCell.hasClass('sorted') && $el.prop('tagName') === 'TD') width = width + SORTED_HEADER_OFFSET;
  
                  $el.width(width);
              }
  
              this.$colheader.find('th').each(matchSizingCellWidth);
              this.$tbody.find('tr:first > td').each(matchSizingCellWidth);
  
              this.$sizingHeader.detach();
          }
      };
  
  
      // DATAGRID PLUGIN DEFINITION
  
      $.fn.datagrid = function (option) {
          return this.each(function () {
              var $this = $(this);
              var data = $this.data('datagrid');
              var options = typeof option === 'object' && option;
  
              if (!data) $this.data('datagrid', (data = new Datagrid(this, options)));
              if (typeof option === 'string') data[option]();
          });
      };
  
      $.fn.datagrid.defaults = {
          dataOptions: {pageIndex: 0, pageSize: 10},
          loadingHTML: '<div class="progress progress-striped active" style="width:50%;margin:auto;"><div class="bar" style="width:100%;"></div></div>',
          itemsText: 'items',
          itemText: 'item'
      };
  
      $.fn.datagrid.Constructor = Datagrid;
  
  });
  