Refactor checkboxes js

jet/static/jet/js/src/features/checkboxes.js

@@ -1,29 +1,41 @@
 var $ = require('jquery');
 
-var initCheckboxesWithoutLabel = function () {
-    var uniqueCheckboxIdCounter = 0;
-    var uniqueCheckboxIdPrefix = 'unique_checkbox_id_';
+var Checkboxes = function() { };
 
-    var addLabelToCheckbox = function($checkbox) {
-        var checkboxId = $checkbox.attr('id') ? $checkbox.attr('id') : uniqueCheckboxIdPrefix + uniqueCheckboxIdCounter++;
-        var $label = $('<label>').attr('for', checkboxId);
+Checkboxes.prototype = {
+    uniqueCheckboxIdCounter: 0,
+    uniqueCheckboxIdPrefix: 'unique_checkbox_id_',
+    addLabelToCheckbox: function($checkbox) {
+        var checkboxId = $checkbox.attr('id')
+            ? $checkbox.attr('id')
+            : this.uniqueCheckboxIdPrefix + this.uniqueCheckboxIdCounter++;
 
-        $checkbox.hide().attr('id', checkboxId);
-        $label.insertAfter($checkbox);
-    };
-
-    var addLabelToCheckboxes = function() {
-        var $containers = $('.action-checkbox, .action-checkbox-column').add('.tabular.inline-related .form-row');
-        var $checkboxes = $containers.find('input[type="checkbox"]').add('.checkbox-without-label').add('label > input[type="checkbox"]');
+        $checkbox.attr('id', checkboxId);
+        $('<label>')
+            .attr('for', checkboxId)
+            .insertAfter($checkbox);
+    },
+    addLabelToCheckboxes: function() {
+        var self = this;
+        var $containers = $('.action-checkbox, .action-checkbox-column, .tabular.inline-related .form-row');
+        var $checkboxes = $containers
+            .find('input[type="checkbox"]')
+            .add('.checkbox-without-label')
+            .add('label > input[type="checkbox"]');
 
         $checkboxes.each(function() {
-            addLabelToCheckbox($(this));
+            self.addLabelToCheckbox($(this));
         });
-    };
-
-    addLabelToCheckboxes();
+    },
+    run: function() {
+        try {
+            this.addLabelToCheckboxes();
+        } catch (e) {
+            console.error(e, e.stack);
+        }
+    }
 };
 
 $(document).ready(function() {
-    initCheckboxesWithoutLabel();
+    new Checkboxes().run();
 });