Add option to set an icon on a button

src/SumoCoders/FrameworkCoreBundle/Form/Extension/ButtonTypeIconExtension.php

@@ -0,0 +1,51 @@
+<?php
+
+namespace SumoCoders\FrameworkCoreBundle\Form\Extension;
+
+use Symfony\Component\Form\AbstractTypeExtension;
+use Symfony\Component\Form\FormBuilderInterface;
+use Symfony\Component\Form\FormInterface;
+use Symfony\Component\Form\FormView;
+use Symfony\Component\OptionsResolver\OptionsResolverInterface;
+
+class ButtonTypeIconExtension extends AbstractTypeExtension
+{
+    /**
+     * @param FormBuilderInterface $builder
+     * @param array                $options
+     */
+    public function buildForm(FormBuilderInterface $builder, array $options)
+    {
+        $builder->setAttribute('icon', $options['icon']);
+    }
+
+    /**
+     * @param FormView      $view
+     * @param FormInterface $form
+     * @param array         $options
+     */
+    public function buildView(FormView $view, FormInterface $form, array $options)
+    {
+        $view->vars['icon'] = $options['icon'];
+    }
+
+    /**
+     * @param OptionsResolverInterface $resolver
+     */
+    public function setDefaultOptions(OptionsResolverInterface $resolver)
+    {
+        $resolver->setDefaults([
+            'icon' => null,
+        ]);
+    }
+
+    /**
+     * Extend the button field type
+     *
+     * @return string The name of the type being extended
+     */
+    public function getExtendedType()
+    {
+        return 'Symfony\Component\Form\Extension\Core\Type\ButtonType';
+    }
+}

src/SumoCoders/FrameworkCoreBundle/Resources/config/services.yml

@@ -43,6 +43,11 @@ services:
     tags:
       - { name: form.type_extension, alias: date }
 
+  framework.button_type_icon_extension:
+    class: SumoCoders\FrameworkCoreBundle\Form\Extension\ButtonTypeIconExtension
+    tags:
+        - { name: form.type_extension, extended-type: Symfony\Component\Form\Extension\Core\Type\ButtonType }
+
   twig.framework_extension:
     class: SumoCoders\FrameworkCoreBundle\Twig\FrameworkExtension
     arguments:

src/SumoCoders/FrameworkCoreBundle/Resources/views/Form/fields.html.twig

@@ -294,3 +294,23 @@
     {% endif %}
   {% endspaceless %}
 {% endblock form_row %}
+
+{% block button_widget -%}
+  {% set attr = attr|merge({class: (attr.class|default('') ~ ' btn')|trim}) %}
+  {% if label is empty -%}
+    {%- if label_format is not empty -%}
+      {% set label = label_format|replace({
+      '%name%': name,
+      '%id%': id,
+      }) %}
+    {%- else -%}
+      {% set label = name|humanize %}
+    {%- endif -%}
+  {%- endif -%}
+  {% if icon|default %}
+    {% set iconHtml = '<i class="' ~ icon ~ '"></i> ' %}
+  {% else %}
+    {% set iconHtml = '' %}
+  {% endif %}
+  <button type="{{ type|default('button') }}" {{ block('button_attributes') }}>{{ iconHtml|raw }}{{ label|trans({}, translation_domain) }}</button>
+{%- endblock button_widget %}