Version 1

[yaffs-website] / web / core / modules / system / tests / modules / form_test / src / Form / FormTestClickedButtonForm.php

diff --git a/web/core/modules/system/tests/modules/form_test/src/Form/FormTestClickedButtonForm.php b/web/core/modules/system/tests/modules/form_test/src/Form/FormTestClickedButtonForm.php
new file mode 100644 (file)
index 0000000..adab5bd
--- /dev/null
+++ b/web/core/modules/system/tests/modules/form_test/src/Form/FormTestClickedButtonForm.php
@@ -0,0 +1,98 @@
+<?php
+
+namespace Drupal\form_test\Form;
+
+use Drupal\Core\Form\FormBase;
+use Drupal\Core\Form\FormStateInterface;
+
+/**
+ * Form builder to test button click detection.
+ */
+class FormTestClickedButtonForm extends FormBase {
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getFormId() {
+    return 'form_test_clicked_button';
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function buildForm(array $form, FormStateInterface $form_state, $first = NULL, $second = NULL, $third = NULL) {
+    // A single text field. In IE, when a form has only one non-button input field
+    // and the ENTER key is pressed while that field has focus, the form is
+    // submitted without any information identifying the button responsible for
+    // the submission. In other browsers, the form is submitted as though the
+    // first button were clicked.
+    $form['text'] = [
+      '#title' => 'Text',
+      '#type' => 'textfield',
+    ];
+
+    // Loop through each path argument, adding buttons based on the information
+    // in the argument. For example, if the path is
+    // form-test/clicked-button/s/i/rb, then 3 buttons are added: a 'submit', an
+    // 'image_button', and a 'button' with #access=FALSE. This enables form.test
+    // to test a variety of combinations.
+    $i = 0;
+    $args = [$first, $second, $third];
+    foreach ($args as $arg) {
+      $name = 'button' . ++$i;
+      // 's', 'b', or 'i' in the argument define the button type wanted.
+      if (strpos($arg, 's') !== FALSE) {
+        $type = 'submit';
+      }
+      elseif (strpos($arg, 'b') !== FALSE) {
+        $type = 'button';
+      }
+      elseif (strpos($arg, 'i') !== FALSE) {
+        $type = 'image_button';
+      }
+      else {
+        $type = NULL;
+      }
+      if (isset($type)) {
+        $form[$name] = [
+          '#type' => $type,
+          '#name' => $name,
+        ];
+        // Image buttons need a #src; the others need a #value.
+        if ($type == 'image_button') {
+          $form[$name]['#src'] = 'core/misc/druplicon.png';
+        }
+        else {
+          $form[$name]['#value'] = $name;
+        }
+        // 'r' for restricted, so we can test that button click detection code
+        // correctly takes #access security into account.
+        if (strpos($arg, 'r') !== FALSE) {
+          $form[$name]['#access'] = FALSE;
+        }
+      }
+    }
+
+    return $form;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function validateForm(array &$form, FormStateInterface $form_state) {
+    if ($triggering_element = $form_state->getTriggeringElement()) {
+      drupal_set_message(t('The clicked button is %name.', ['%name' => $triggering_element['#name']]));
+    }
+    else {
+      drupal_set_message('There is no clicked button.');
+    }
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function submitForm(array &$form, FormStateInterface $form_state) {
+    drupal_set_message('Submit handler for form_test_clicked_button executed.');
+  }
+
+}