5 files changed, 42 insertions, 0 deletions
diff --git a/config/initializers/simple_form/safe_submit.rb b/config/initializers/simple_form/safe_submit.rb
new file mode 100644
index 000000000..8d10929eb
--- /dev/null
+++ b/config/initializers/simple_form/safe_submit.rb
@@ -0,0 +1,7 @@
+AF83::SimpleForm::SafeSubmit.decorate_simple_form
+
+if Rails.env.development?
+  ActionDispatch::Reloader.to_prepare do
+    AF83::SimpleForm::SafeSubmit.decorate_simple_form
+  end
+end
diff --git a/config/locales/actions.en.yml b/config/locales/actions.en.yml
index 08d505393..278915526 100644
--- a/config/locales/actions.en.yml
+++ b/config/locales/actions.en.yml
@@ -25,6 +25,7 @@ en:
     erase: 'Erase'
     create_api_key: "Create an API key"
     select: Select
+    wait_for_submission: "Please wait..."
   or: "or"
   cancel: "Cancel"
   back: "Go Back"
diff --git a/config/locales/actions.fr.yml b/config/locales/actions.fr.yml
index 4690c995a..92e16f21e 100644
--- a/config/locales/actions.fr.yml
+++ b/config/locales/actions.fr.yml
@@ -25,6 +25,7 @@ fr:
     erase: 'Effacer'
     create_api_key: "Créer une clé d'API"
     select: Sélectionner
+    wait_for_submission: "Validation..."
   or: "ou"
   cancel: "Annuler"
   back: "Retour"
diff --git a/lib/af83/simple_form/safe_submit.rb b/lib/af83/simple_form/safe_submit.rb
new file mode 100644
index 000000000..d4d84f90d
--- /dev/null
+++ b/lib/af83/simple_form/safe_submit.rb
@@ -0,0 +1,24 @@
+module AF83
+  module SimpleForm
+    module SafeSubmit
+      def self.decorate_simple_form
+        ::SimpleForm::FormBuilder.class_eval do
+          def button(type, *args, &block)
+            options = args.extract_options!.dup
+            options[:class] = [::SimpleForm.button_class, options[:class]].compact
+            if type == :submit
+              options[:data] ||= {}
+              options[:data][:disable_with] ||= I18n.t('actions.wait_for_submission')
+            end
+            args << options
+            if respond_to?(:"#{type}_button")
+              send(:"#{type}_button", *args, &block)
+            else
+              send(type, *args, &block)
+            end
+          end
+        end
+      end
+    end
+  end
+end
diff --git a/spec/features/safe_submit_spec.rb b/spec/features/safe_submit_spec.rb
new file mode 100644
index 000000000..9968d4310
--- /dev/null
+++ b/spec/features/safe_submit_spec.rb
@@ -0,0 +1,9 @@
+RSpec.describe 'SafeSubmit', type: :feature do
+  login_user
+
+  let( :path ){ new_api_key_path() }
+  it 'view shows the corresponding buttons' do
+    visit path
+    expect(page).to have_css('input[type=submit][data-disable-with]')
+  end
+end