using the active class when the button is disabeld

src/panels/view/ButtonView.js

@@ -13,7 +13,7 @@ module.exports = Backbone.View.extend({
     this.ppfx = this.config.pStylePrefix || '';
     this.id = this.pfx + this.model.get('id');
     this.activeCls = this.pfx + 'active';
-    this.disableCls = this.pfx + 'disable';
+    this.disableCls = this.pfx + 'active';
     this.btnsVisCls = this.pfx + 'visible';
     this.parentM = o.parentM || null;
     this.className = this.pfx + 'btn' + (cls ? ' ' + cls : '');

test/specs/panels/view/ButtonView.js

@@ -58,13 +58,13 @@ module.exports = {
         it('Disable the button', () => {
           model.set('disable', true, {silent: true});
           view.updateDisable();
-          expect(view.el.getAttribute('class')).toEqual(btnClass + ' disable');
+          expect(view.el.getAttribute('class')).toEqual(btnClass + ' active');
         });
         
         it('Enable the disabled button', () => {
           model.set('disable', true, {silent: true});
           view.updateDisable();
-          expect(view.el.getAttribute('class')).toEqual(btnClass + ' disable');
+          expect(view.el.getAttribute('class')).toEqual(btnClass + ' active');
           model.set('disable', false, {silent: true});
           view.updateDisable();
           expect(view.el.getAttribute('class')).toEqual(btnClass);