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msd2/tracking/piwik/libs/HTML/QuickForm2/Controller/DefaultAction.php

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+<?php
+/**
+ * A hidden button used to submit the form when the user presses Enter
+ *
+ * PHP version 5
+ *
+ * LICENSE:
+ *
+ * Copyright (c) 2006-2010, Alexey Borzov <avb@php.net>,
+ *                          Bertrand Mansion <golgote@mamasam.com>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ *    * Redistributions of source code must retain the above copyright
+ *      notice, this list of conditions and the following disclaimer.
+ *    * Redistributions in binary form must reproduce the above copyright
+ *      notice, this list of conditions and the following disclaimer in the
+ *      documentation and/or other materials provided with the distribution.
+ *    * The names of the authors may not be used to endorse or promote products
+ *      derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
+ * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * @category   HTML
+ * @package    HTML_QuickForm2
+ * @author     Alexey Borzov <avb@php.net>
+ * @author     Bertrand Mansion <golgote@mamasam.com>
+ * @license    http://opensource.org/licenses/bsd-license.php New BSD License
+ * @version    SVN: $Id: DefaultAction.php 293465 2010-01-12 18:24:37Z avb $
+ * @link       http://pear.php.net/package/HTML_QuickForm2
+ */
+
+/** Class for <input type="image" /> elements */
+// require_once 'HTML/QuickForm2/Element/InputImage.php';
+
+/**
+ * A hidden button used to submit the form when the user presses Enter
+ *
+ * This element is used by {@link HTML_QuickForm2_Controller_Page::setDefaultAction()}
+ * to define the action that will take place if the user presses Enter on one
+ * of the form elements instead of explicitly clicking one of the submit
+ * buttons. Injecting a hidden <input type="image" /> element is about the
+ * only cross-browser way to achieve this.
+ *
+ * @category   HTML
+ * @package    HTML_QuickForm2
+ * @author     Alexey Borzov <avb@php.net>
+ * @author     Bertrand Mansion <golgote@mamasam.com>
+ * @version    Release: @package_version@
+ * @link       http://www.alanflavell.org.uk/www/formquestion.html
+ * @link       http://muffinresearch.co.uk/archives/2005/12/08/fun-with-multiple-submit-buttons/
+ */
+class HTML_QuickForm2_Controller_DefaultAction
+    extends HTML_QuickForm2_Element_InputImage
+{
+    protected $attributes = array('type' => 'image', 'id' => '_qf_default',
+                                  'width' => '1', 'height' => '1');
+
+   /**
+    * Disallow changing the 'id' attribute
+    *
+    * @param    string  Attribute name
+    * @param    string  Attribute value, null if attribute is being removed
+    */
+    protected function onAttributeChange($name, $value = null)
+    {
+        if ('id' == $name) {
+            throw new HTML_QuickForm2_InvalidArgumentException(
+                "Attribute 'id' is read-only"
+            );
+        }
+        parent::onAttributeChange($name, $value);
+    }
+
+   /**
+    * This element is rendered using renderHidden() method
+    *
+    * renderHidden() is used to
+    *   - prevent using the standard element template as this button is
+    *     expected to be hidden
+    *   - render it above all other submit buttons since hidden elements
+    *     are usually at the top of the form
+    *
+    * @param    HTML_QuickForm2_Renderer    Renderer instance
+    * @return   HTML_QuickForm2_Renderer
+    */
+    public function render(HTML_QuickForm2_Renderer $renderer)
+    {
+        $renderer->renderHidden($this);
+        return $renderer;
+    }
+}
+?>