colors for visual grouping of customer, projects and activities (#751)

src/Form/ActivityEditForm.php

@@ -10,6 +10,7 @@
 namespace App\Form;
 
 use App\Entity\Activity;
+use App\Form\Type\ColorPickerType;
 use App\Form\Type\CustomerType;
 use App\Form\Type\FixedRateType;
 use App\Form\Type\HourlyRateType;
@@ -109,6 +110,7 @@ class ActivityEditForm extends AbstractType
         );
 
         $builder
+            ->add('color', ColorPickerType::class)
             ->add('fixedRate', FixedRateType::class, [
                 'currency' => $currency,
             ])

src/Form/CustomerEditForm.php

@@ -10,6 +10,7 @@
 namespace App\Form;
 
 use App\Entity\Customer;
+use App\Form\Type\ColorPickerType;
 use App\Form\Type\FixedRateType;
 use App\Form\Type\HourlyRateType;
 use App\Form\Type\YesNoType;
@@ -101,6 +102,7 @@ class CustomerEditForm extends AbstractType
             ->add('timezone', TimezoneType::class, [
                 'label' => 'label.timezone',
             ])
+            ->add('color', ColorPickerType::class)
             ->add('fixedRate', FixedRateType::class, [
                 'currency' => $currency ?? false,
             ])

src/Form/ProjectEditForm.php

@@ -11,6 +11,7 @@ namespace App\Form;
 
 use App\Entity\Customer;
 use App\Entity\Project;
+use App\Form\Type\ColorPickerType;
 use App\Form\Type\CustomerType;
 use App\Form\Type\FixedRateType;
 use App\Form\Type\HourlyRateType;
@@ -69,6 +70,7 @@ class ProjectEditForm extends AbstractType
                     return $repo->builderForEntityType($customer);
                 },
             ])
+            ->add('color', ColorPickerType::class)
             ->add('fixedRate', FixedRateType::class, [
                 'currency' => $currency,
             ])

src/Form/Type/ColorPickerType.php

@@ -0,0 +1,67 @@
+<?php
+
+/*
+ * This file is part of the Kimai time-tracking app.
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace App\Form\Type;
+
+use Symfony\Component\Form\AbstractType;
+use Symfony\Component\Form\DataTransformerInterface;
+use Symfony\Component\Form\Extension\Core\Type\ColorType;
+use Symfony\Component\Form\FormBuilderInterface;
+use Symfony\Component\OptionsResolver\OptionsResolver;
+
+class ColorPickerType extends AbstractType implements DataTransformerInterface
+{
+    public const DEFAULT_COLOR = '#d2d6de';
+
+    /**
+     * {@inheritdoc}
+     */
+    public function buildForm(FormBuilderInterface $builder, array $options)
+    {
+        $builder->addViewTransformer($this);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function configureOptions(OptionsResolver $resolver)
+    {
+        $resolver->setDefaults([
+            'label' => 'label.color',
+        ]);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function transform($data)
+    {
+        if (empty($data)) {
+            return self::DEFAULT_COLOR;
+        }
+
+        return $data;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function reverseTransform($data)
+    {
+        return null === $data ? self::DEFAULT_COLOR : $data;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getParent()
+    {
+        return ColorType::class;
+    }
+}