Add image widget. (#242)

src/Attribute/Input/HasFormmethod.php

@@ -40,7 +40,7 @@ public function formmethod(string $value): static
         }
 
         $new = clone $this;
-        $new->attributes['formn-method'] = $value;
+        $new->attributes['formmethod'] = $value;
 
         return $new;
     }

src/Attribute/Input/HasSrc.php

@@ -13,13 +13,13 @@ trait HasSrc
      * Set the source attribute valid for the image input button or img only, the src is string specifying the URL of
      * the image file to display to represent the graphical submit button.
      *
-     * @param string $value The source of the widget.
+     * @param string|null $value The source of the widget.
      *
      * @return static A new instance of the current class with the specified source value.
      *
      * @link https://www.w3.org/TR/html52/embedded-content-0.html#attr-img-srcset
      */
-    public function src(string $value): static
+    public function src(string $value = null): static
     {
         $new = clone $this;
         $new->attributes['src'] = $value;

src/Input/Image.php

@@ -0,0 +1,41 @@
+<?php
+
+declare(strict_types=1);
+
+namespace PHPForge\Html\Input;
+
+use PHPForge\Html\Attribute;
+
+/**
+ * The input element with a type attribute whose value is "image" represents either an image from which the UA enables a
+ * user to interactively select a pair of coordinates and submit the form, or alternatively a button from which the user
+ * can submit the form.
+ *
+ * @link https://www.w3.org/TR/2012/WD-html-markup-20120329/input.image.html#input.image
+ */
+final class Image extends Base\AbstractInput
+{
+    use Attribute\Custom\HasWidgetValidation;
+    use Attribute\Input\HasAlt;
+    use Attribute\Input\HasFormaction;
+    use Attribute\Input\HasFormenctype;
+    use Attribute\Input\HasFormmethod;
+    use Attribute\Input\HasFormnovalidate;
+    use Attribute\Input\HasFormtarget;
+    use Attribute\Input\HasHeight;
+    use Attribute\Input\HasSrc;
+    use Attribute\Input\HasWidth;
+
+    protected function run(): string
+    {
+        $attributes = $this->attributes;
+        $value = $attributes['src'] ?? $this->getValue();
+        $this->validateString($value);
+
+        unset($attributes['value']);
+
+        $attributes['src'] = $value;
+
+        return $this->buildInputTag($attributes, 'image');
+    }
+}

tests/Attribute/Input/HasSrcTest.php

@@ -17,6 +17,6 @@ public function testImmutability(): void
             protected array $attributes = [];
         };
 
-        $this->assertNotSame($instance, $instance->src(''));
+        $this->assertNotSame($instance, $instance->src(null));
     }
 }

tests/Input/Image/ExceptionTest.php

@@ -0,0 +1,23 @@
+<?php
+
+declare(strict_types=1);
+
+namespace PHPForge\Html\Tests\Input\Image;
+
+use InvalidArgumentException;
+use PHPForge\Html\Input\Image;
+use PHPUnit\Framework\TestCase;
+
+/**
+ * @psalm-suppress PropertyNotSetInConstructor
+ */
+final class ExceptionTest extends TestCase
+{
+    public function testValue(): void
+    {
+        $this->expectException(InvalidArgumentException::class);
+        $this->expectExceptionMessage('Image::class widget must be a string or null value.');
+
+        Image::widget()->value(1)->render();
+    }
+}