Add SelectableTable jQuery event

backend/app/assets/javascripts/spree/backend.js

@@ -49,6 +49,7 @@
 //= require spree/backend/progress
 //= require spree/backend/promotions
 //= require spree/backend/promotions/activation
+//= require spree/backend/returns/return_item_selection
 //= require spree/backend/routes
 //= require spree/backend/shipments
 //= require spree/backend/spree-select2

backend/app/assets/javascripts/spree/backend/components/selectable_table.js

@@ -1,16 +1,5 @@
 Spree.ready(function() {
   $('table.selectable-table').each(function() {
-    var selectableTableModel = new Backbone.Model({
-      allSelected: false,
-      selectedItems: []
-    })
-
-    new Spree.Views.Tables.SelectableTable({el: this, model: selectableTableModel});
-
-    if($(this).hasClass('return-items-table')) {
-      var tfoot = document.createElement('tfoot')
-      new Spree.Views.Tables.SelectableTable.SumReturnItemAmount({ el: tfoot, model: selectableTableModel});
-      $(this).append(tfoot);
-    }
+    $(document).trigger("selectableTable:init", [new Spree.Views.Tables.SelectableTable({el: this})]);
   })
 });

backend/app/assets/javascripts/spree/backend/returns/return_item_selection.js

@@ -0,0 +1,5 @@
+$(document).on("selectableTable:init", function(_event, selectableTable) {
+  if(selectableTable.$el.hasClass('return-items-table')) {
+    new Spree.Views.Tables.ReturnItems({el: selectableTable.el, model: selectableTable.model});
+  }
+})

backend/app/assets/javascripts/spree/backend/views/index.js

@@ -24,6 +24,7 @@
 //= require 'spree/backend/views/promotions/option_values_rule'
 //= require 'spree/backend/views/tables/editable_table'
 //= require 'spree/backend/views/tables/editable_table_row'
+//= require 'spree/backend/views/tables/return_items'
 //= require 'spree/backend/views/tables/selectable_table'
 //= require 'spree/backend/views/tables/selectable_table_summary'
 //= require 'spree/backend/views/tables/selectable_table_sum_return_item_amount'

backend/app/assets/javascripts/spree/backend/views/tables/return_items.js

@@ -0,0 +1,9 @@
+Spree.Views.Tables.ReturnItems = Backbone.View.extend({
+  initialize: function() {
+    if(this.$el.hasClass('return-items-table')) {
+      var tfoot = document.createElement('tfoot')
+      new Spree.Views.Tables.SelectableTable.SumReturnItemAmount({ el: tfoot, model: this.model});
+      this.$el.append(tfoot);
+    }
+  },
+})

backend/app/assets/javascripts/spree/backend/views/tables/selectable_table.js

@@ -3,7 +3,16 @@ Spree.Views.Tables.SelectableTable = Backbone.View.extend({
     'change .selectable': 'onSelectedItem',
   },
 
+  preinitialize({autoRender}) {
+    this.autoRender = autoRender;
+  },
+
   initialize: function() {
+    this.model = new Backbone.Model({
+      allSelected: false,
+      selectedItems: []
+    });
+
     this.listenTo(this.model, 'change', this.detectChanges)
     if(this.$el.find('.selectable').length > 0) {
       var tr = document.createElement('tr')
@@ -12,6 +21,7 @@ Spree.Views.Tables.SelectableTable = Backbone.View.extend({
     }
 
     this.render();
+    this.trigger("selectableTable:init", this)
   },
 
   onSelectedItem: function(event) {