Merge pull request Emagister#11 from rafalgalka/pull-request/captcha-…

…decorator

Captcha element/decorator

Twitter/Bootstrap/Form/Decorator/Captcha.php

@@ -0,0 +1,56 @@
+<?php
+
+/**
+ * @category    Forms
+ * @package     Twitter_Bootstrap_Form
+ * @subpackage  Decorator
+ * @author      Rafał Gałka <rafal.galka@modernweb.pl>
+ */
+
+/**
+ * Captcha decorator.
+ *
+ * Surrounds <img> with the <label> tag for extra line spacing.
+ *
+ * @category    Forms
+ * @package     Twitter_Bootstrap_Form
+ * @subpackage  Decorator
+ * @author      Rafał Gałka <rafal.galka@modernweb.pl>
+ */
+class Twitter_Bootstrap_Form_Decorator_Captcha extends Zend_Form_Decorator_Captcha
+{
+    /**
+     * Render captcha
+     *
+     * @param  string $content
+     * @return string
+     */
+    public function render($content)
+    {
+        $element = $this->getElement();
+        if (!method_exists($element, 'getCaptcha')) {
+            return $content;
+        }
+
+        $view    = $element->getView();
+        if (null === $view) {
+            return $content;
+        }
+
+        $placement = $this->getPlacement();
+        $separator = $this->getSeparator();
+
+        $captcha = $element->getCaptcha();
+        $markup  = '<label>' . $captcha->render($view) . '</label>';
+        switch ($placement) {
+            case 'PREPEND':
+                $content = $markup . $separator .  $content;
+                break;
+            case 'APPEND':
+            default:
+                $content = $content . $separator . $markup;
+        }
+        return $content;
+    }
+
+}

Twitter/Bootstrap/Form/Element/Captcha.php

@@ -0,0 +1,66 @@
+<?php
+
+/**
+ * @category    Forms
+ * @package     Twitter_Bootstrap_Form
+ * @subpackage  Element
+ * @author      Rafał Gałka <rafal.galka@modernweb.pl>
+ */
+
+/**
+ * Captcha Form element.
+ *
+ * Supports the order of decorator FieldSize and duplicate text box.
+ *
+ * @category    Forms
+ * @package     Twitter_Bootstrap_Form
+ * @subpackage  Element
+ * @author      Rafał Gałka <rafal.galka@modernweb.pl>
+ */
+class Twitter_Bootstrap_Form_Element_Captcha extends Zend_Form_Element_Captcha
+{
+    /**
+     * Render form element
+     *
+     * @param  Zend_View_Interface $view
+     * @return string
+     */
+    public function render(Zend_View_Interface $view = null)
+    {
+        $captcha    = $this->getCaptcha();
+        $captcha->setName($this->getFullyQualifiedName());
+
+        if (!$this->loadDefaultDecoratorsIsDisabled()) {
+
+            // fieldSize decorator mus be first
+            $fieldSize = $this->getDecorator('FieldSize');
+            $this->removeDecorator('FieldSize');
+
+            // duplicated text field generated by ViewHelper decorator
+            $this->removeDecorator('ViewHelper');
+
+            $decorators = $this->getDecorators();
+            $decorator  = $captcha->getDecorator();
+            $key        = get_class($this->_getDecorator($decorator, null));
+
+            if (!empty($decorator) && !array_key_exists($key, $decorators)) {
+                array_unshift($decorators, $decorator);
+            }
+
+            $decorator = array('Captcha', array('captcha' => $captcha));
+            $key       = get_class($this->_getDecorator($decorator[0], $decorator[1]));
+
+            if ($captcha instanceof Zend_Captcha_Word && !array_key_exists($key, $decorators)) {
+                array_unshift($decorators, $decorator);
+            }
+
+            array_unshift($decorators, $fieldSize);
+            $this->setDecorators($decorators);
+        }
+
+        $this->setValue($this->getCaptcha()->generate());
+
+        return parent::render($view);
+    }
+
+}