Adding disable logic for buttons.

Update tests, clean up approach.

Updating jasmine tests.

lms/static/js/spec/student_account/login_spec.js

@@ -134,6 +134,9 @@ define([
             // Submit the form, with successful validation
             submitForm(true);
 
+            // Form button should be disabled on success.
+            expect(view.$submitButton).toHaveAttr('disabled');
+
             // Verify that the client contacts the server with the expected data
             AjaxHelpers.expectRequest(
                 requests, 'POST',
@@ -213,6 +216,8 @@ define([
 
             // Expect auth complete NOT to have been triggered
             expect(authComplete).toBe(false);
+            // Form button should be re-enabled when errors occur
+            expect(view.$submitButton).not.toHaveAttr('disabled');
         });
 
         it('displays an error if the server returns an error while logging in', function() {
@@ -227,10 +232,15 @@ define([
             // Expect that an error is displayed and that auth complete is not triggered
             expect(view.$errors).not.toHaveClass('hidden');
             expect(authComplete).toBe(false);
+            // Form button should be re-enabled on server failure.
+            expect(view.$submitButton).not.toHaveAttr('disabled');
 
             // If we try again and succeed, the error should go away
             submitForm();
 
+            // Form button should be disabled on success.
+            expect(view.$submitButton).toHaveAttr('disabled');
+
             // This time, respond with status code 200
             AjaxHelpers.respondWithJson(requests, {});
 

lms/static/js/spec/student_account/register_spec.js

@@ -242,6 +242,8 @@ define([
 
             // Verify that auth complete is triggered
             expect(authComplete).toBe(true);
+            // Form button should be disabled on success.
+            expect(view.$submitButton).toHaveAttr('disabled');
         });
 
         it('sends analytics info containing the enrolled course ID', function() {
@@ -295,6 +297,8 @@ define([
 
             // Verify that no submission errors are visible
             expect(view.$errors).toHaveClass('hidden');
+            // Form button should be disabled on success.
+            expect(view.$submitButton).toHaveAttr('disabled');
         });
 
         it('displays registration form validation errors', function() {
@@ -308,6 +312,8 @@ define([
 
             // Expect that auth complete is NOT triggered
             expect(authComplete).toBe(false);
+            // Form button should be re-enabled on error.
+            expect(view.$submitButton).not.toHaveAttr('disabled');
         });
 
         it('displays an error if the server returns an error while registering', function() {
@@ -332,6 +338,8 @@ define([
             // Expect that the error is hidden and that auth complete is triggered
             expect(view.$errors).toHaveClass('hidden');
             expect(authComplete).toBe(true);
+            // Form button should be disabled on success.
+            expect(view.$submitButton).toHaveAttr('disabled');
         });
     });
 });

lms/static/js/student_account/views/FormView.js

@@ -28,6 +28,8 @@ var edx = edx || {};
         // String to append to required label fields
         requiredStr: '*',
 
+        submitButton: '',
+
         initialize: function( data ) {
             this.model = data.model;
             this.preRender( data );
@@ -65,6 +67,7 @@ var edx = edx || {};
 
             this.$form = $container.find('form');
             this.$errors = $container.find('.submission-error');
+            this.$submitButton = $container.find(this.submitButton);
         },
 
         buildForm: function( data ) {
@@ -178,6 +181,7 @@ var edx = edx || {};
         saveError: function( error ) {
             this.errors = ['<li>' + error.responseText + '</li>'];
             this.setErrors();
+            this.toggleDisableButton(false);
         },
 
         setErrors: function() {
@@ -209,6 +213,8 @@ var edx = edx || {};
 
             event.preventDefault();
 
+            this.toggleDisableButton(true);
+
             if ( !_.compact(this.errors).length ) {
                 this.model.set( data );
                 this.model.save();
@@ -221,11 +227,26 @@ var edx = edx || {};
         toggleErrorMsg: function( show ) {
             if ( show ) {
                 this.setErrors();
+                this.toggleDisableButton(false);
             } else {
                 this.element.hide( this.$errors );
             }
         },
 
+        /**
+         * If a form button is defined for this form, this will disable the button on
+         * submit, and re-enable the button if an error occurs.
+         *
+         * Args:
+         *      disabled (boolean): If set to TRUE, disable the button.
+         *
+         */
+        toggleDisableButton: function ( disabled ) {
+            if (this.$submitButton) {
+                this.$submitButton.attr('disabled', disabled);
+            }
+        },
+
         validate: function( $el ) {
             return edx.utils.validate( $el );
         }

lms/static/js/student_account/views/LoginView.js

@@ -21,6 +21,8 @@ var edx = edx || {};
 
         requiredStr: '',
 
+        submitButton: '.js-login',
+
         preRender: function( data ) {
             this.providers = data.thirdPartyAuth.providers || [];
             this.currentProvider = data.thirdPartyAuth.currentProvider || '';
@@ -54,6 +56,7 @@ var edx = edx || {};
             this.$form = this.$container.find('form');
             this.$errors = this.$container.find('.submission-error');
             this.$authError = this.$container.find('.already-authenticated-msg');
+            this.$submitButton = this.$container.find(this.submitButton);
 
             /* If we're already authenticated with a third-party
              * provider, try logging in.  The easiest way to do this
@@ -101,6 +104,7 @@ var edx = edx || {};
                 this.element.hide( this.$authError );
                 this.element.show( this.$errors );
             }
+            this.toggleDisableButton(false);
         }
     });
 })(jQuery, _, gettext);

lms/static/js/student_account/views/PasswordResetView.js

@@ -19,6 +19,8 @@ var edx = edx || {};
 
         requiredStr: '',
 
+        submitButton: '.js-reset',
+
         preRender: function( data ) {
             this.listenTo( this.model, 'sync', this.saveSuccess );
         },
@@ -26,6 +28,7 @@ var edx = edx || {};
         toggleErrorMsg: function( show ) {
             if ( show ) {
                 this.setErrors();
+                this.toggleDisableButton(false)
             } else {
                 this.element.hide( this.$errors );
             }

lms/static/js/student_account/views/RegisterView.js

@@ -18,6 +18,8 @@ var edx = edx || {};
 
         formType: 'register',
 
+        submitButton: '.js-register',
+
         preRender: function( data ) {
             this.providers = data.thirdPartyAuth.providers || [];
             this.currentProvider = data.thirdPartyAuth.currentProvider || '';
@@ -57,5 +59,6 @@ var edx = edx || {};
         saveSuccess: function() {
             this.trigger('auth-complete');
         }
+        
     });
 })(jQuery, _, gettext);