sortablegridfield/javascript/GridFieldSortableRows.js

(function($) {
	$.entwine('ss', function($) {
		$('.ss-gridfield .gridfield-sortablerows input').entwine({
			onmatch: function() {
				var self=this;
				var refCheckbox=$(this);
				var gridField=this.getGridField();
				var form=gridField.closest('form');
				var pageSort=false;
				
				if($(this).is(':checked')) {
					gridField.find('table').addClass('dragSorting');
				}else {
					gridField.find('table').removeClass('dragSorting');
				}
				
				gridField.find('tbody').sortable({
												opacity: 0.6,
												disabled: ($(this).is(':checked')==false),
												helper: function(e, ui) {
													//Maintains width of the columns
													ui.children().each(function() {
														$(this).width($(this).width());
													});
													
													return ui;
												},
												update: function(event, ui) {
													if(pageSort) {
														pageSort=false;
														return;
													}

													$('.ss-gridfield-item').removeClass('first last odd even');
													$('.ss-gridfield-item').first().addClass('first');
													$('.ss-gridfield-item:odd').last().addClass('last');
													$('.ss-gridfield-item:even').addClass('even');
													$('.ss-gridfield-item:odd').addClass('odd');
													
													var dataRows=[];
													var gridItems=gridField.getItems();
													var button=refCheckbox.parent().find('.sortablerows-savesort');
													
													
													for(var i=0;i<gridItems.length;i++) {
														dataRows[i]=$(gridItems[i]).data('id');
													}
													
													
													self._makeRequest({data: [
																				{
																					name: button.attr('name'),
																					value: button.val()
																				},
																				{
																					name: 'ItemIDs',
																					value: dataRows
																				}
																			]},function() {
																				form.removeClass('loading');
																			});
												}
											});

				if(refCheckbox.hasClass('gridfield-sortablerows-noselection')){
					gridField.find('tbody').disableSelection();
				}
				
				gridField.find('.datagrid-pagination .ss-gridfield-previouspage, .datagrid-pagination .ss-gridfield-nextpage').each(function() {
																$(this).droppable({
																			disabled: $(this).is(':disabled'),
																			accept: 'tr.ss-gridfield-item',
																			activeClass: 'sortablerows-droptarget',
																			tolerance: 'pointer',
																			drop: function(event, ui) {
																				pageSort=true;
																				
																				var button=refCheckbox.parent().find('.sortablerows-sorttopage');
																				var itemID=$(ui.draggable).data('id');
																				var target='';
																				
																				
																				if($(this).hasClass('ss-gridfield-previouspage')) {
																					target='previouspage';
																				}else if($(this).hasClass('ss-gridfield-nextpage')) {
																					target='nextpage';
																				}
																				
																				
																				//Move and Reload the grid
																				gridField.reload({data: [
																											{
																												name: button.attr('name'),
																												value: button.val()
																											},
																											{
																												name: 'ItemID',
																												value: itemID
																											},
																											{
																												name: 'Target',
																												value: target
																											}
																										]});
																			}
																		});
															});
			},
			
			onchange: function(e) {
				var gridField=this.getGridField();
				gridField.find('tbody').sortable('option', 'disabled', ($(this).is(':checked')==false));
				gridField.setState('GridFieldSortableRows', {sortableToggle: $(this).is(':checked')});
				
				
				var button=$(this).parent().find('.sortablerows-toggle');
				gridField.reload({data: [{name: button.attr('name'), value: button.val()}]});
			},
			
			_makeRequest: function(ajaxOpts, callback) {
				var gridField=this.getGridField();
				var form = gridField.closest('form'), 
					focusedElName = gridField.find(':input:focus').attr('name'); // Save focused element for restoring after refresh
				
				form.addClass('loading');
				
				ajaxOpts.data = ajaxOpts.data.concat(form.find(':input').serializeArray());
				
				// Include any GET parameters from the current URL, as the view state might depend on it.
				// For example, a list prefiltered through external search criteria might be passed to GridField.
				if(window.location.search) {
					ajaxOpts.data = window.location.search.replace(/^\?/, '') + '&' + $.param(ajaxOpts.data);
				}
				
				$.ajax($.extend({}, {
					headers: {"X-Pjax" : 'CurrentField'},
					type: "POST",
					url: gridField.data('url'),
					dataType: 'html',
					success: callback,
					error: function(e) {
						alert(ss.i18n._t('GRIDFIELD.ERRORINTRANSACTION'));
					}
				}, ajaxOpts));
			}
		});
	});
})(jQuery);