Add autofocus attribute support.

lib/simple_form/inputs/base.rb

@@ -28,8 +28,9 @@ module SimpleForm
         @reflection         = options.delete(:reflection)
         @options            = options
         @input_html_options = html_options_for(:input, input_html_classes).tap do |o|
-          o[:required] = true if has_required?
-          o[:disabled] = true if disabled?
+          o[:required]  = true if has_required?
+          o[:disabled]  = true if disabled?
+          o[:autofocus] = true if has_autofocus?
         end
       end
 
@@ -76,6 +77,10 @@ module SimpleForm
         attribute_required?
       end
 
+      def has_autofocus?
+        options[:autofocus]
+      end
+
       def has_validators?
         attribute_name && object.class.respond_to?(:validators_on)
       end

test/inputs_test.rb

@@ -62,6 +62,41 @@ class InputTest < ActionView::TestCase
     assert_select 'select.datetime:not([disabled])'
   end
 
+  test 'input should generate autofocus attribute based on the autofocus option' do
+    with_input_for @user, :name, :string, :autofocus => true
+    assert_select 'input.string[autofocus]'
+    with_input_for @user, :description, :text, :autofocus => true
+    assert_select 'textarea.text[autofocus]'
+    with_input_for @user, :age, :integer, :autofocus => true
+    assert_select 'input.integer[autofocus]'
+    with_input_for @user, :born_at, :date, :autofocus => true
+    assert_select 'select.date[autofocus]'
+    with_input_for @user, :created_at, :datetime, :autofocus => true
+    assert_select 'select.datetime[autofocus]'
+
+    with_input_for @user, :name, :string, :autofocus => false
+    assert_select 'input.string:not([autofocus])'
+    with_input_for @user, :description, :text, :autofocus => false
+    assert_select 'textarea.text:not([autofocus])'
+    with_input_for @user, :age, :integer, :autofocus => false
+    assert_select 'input.integer:not([autofocus])'
+    with_input_for @user, :born_at, :date, :autofocus => false
+    assert_select 'select.date:not([autofocus])'
+    with_input_for @user, :created_at, :datetime, :autofocus => false
+    assert_select 'select.datetime:not([autofocus])'
+
+    with_input_for @user, :name, :string
+    assert_select 'input.string:not([autofocus])'
+    with_input_for @user, :description, :text
+    assert_select 'textarea.text:not([autofocus])'
+    with_input_for @user, :age, :integer
+    assert_select 'input.integer:not([autofocus])'
+    with_input_for @user, :born_at, :date
+    assert_select 'select.date:not([autofocus])'
+    with_input_for @user, :created_at, :datetime
+    assert_select 'select.datetime:not([autofocus])'
+  end
+
   test 'input should render components according to an optional :components option' do
     with_input_for @user, :name, :string, :components => [:input, :label]
     assert_select 'input + label'