release: v3.1.0 premium smart core engines and 14 new accessibility rules

src/Rules/FormSubmitButton.php

@@ -0,0 +1,56 @@
+<?php
+
+namespace YakNet\AccessibilityConsole\Rules;
+
+use DOMElement;
+use YakNet\AccessibilityConsole\Core\Severity;
+use YakNet\AccessibilityConsole\Core\Violation;
+use YakNet\AccessibilityConsole\Core\WCAGStandard;
+
+class FormSubmitButton extends AbstractRule
+{
+    public function getId(): string { return 'WCAG_3_2_2_FORM_SUBMIT'; }
+    public function getDescription(): string { return 'Every form must contain a submit button to enable keyboard submission.'; }
+    public function getStandard(): WCAGStandard { return WCAGStandard::A; }
+    public function getSeverity(): Severity { return Severity::ERROR; }
+    public function getLevel(): int { return 3; }
+
+    public function check(DOMElement $element): ?Violation
+    {
+        if (strtolower($element->tagName) !== 'form') {
+            return null;
+        }
+
+        $hasSubmit = false;
+        
+        $buttons = $element->getElementsByTagName('button');
+        foreach ($buttons as $btn) {
+            $type = strtolower($btn->getAttribute('type') ?: 'submit');
+            if ($type === 'submit') {
+                $hasSubmit = true;
+                break;
+            }
+        }
+
+        if (!$hasSubmit) {
+            $inputs = $element->getElementsByTagName('input');
+            foreach ($inputs as $input) {
+                $type = strtolower($input->getAttribute('type'));
+                if ($type === 'submit' || $type === 'image') {
+                    $hasSubmit = true;
+                    break;
+                }
+            }
+        }
+
+        if (!$hasSubmit) {
+            return $this->createViolation(
+                $element,
+                $this->getDescription(),
+                'Add a submit control, such as a <button type="submit"> or <input type="submit"> inside the form.'
+            );
+        }
+
+        return null;
+    }
+}