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297 lines
11 KiB
297 lines
11 KiB
2 years ago
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<?php
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// This file is part of Moodle - http://moodle.org/
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//
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// Moodle is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Moodle is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
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/**
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* Form fields helper.
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*
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* @package core
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* @category test
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* @copyright 2013 David Monllaó
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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*/
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// NOTE: no MOODLE_INTERNAL test here, this file may be required by behat before including /config.php.
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use Behat\Mink\Session as Session,
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Behat\Mink\Element\NodeElement as NodeElement,
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Behat\Mink\Exception\ElementNotFoundException as ElementNotFoundException,
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Behat\MinkExtension\Context\RawMinkContext as RawMinkContext;
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/**
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* Helper to interact with form fields.
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*
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* @package core
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* @category test
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* @copyright 2013 David Monllaó
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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*/
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class behat_field_manager {
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/**
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* Gets an instance of the form field from it's label
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*
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* @param string $label
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* @param RawMinkContext $context
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* @return behat_form_field
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*/
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public static function get_form_field_from_label($label, RawMinkContext $context) {
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// There are moodle form elements that are not directly related with
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// a basic HTML form field, we should also take care of them.
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// The DOM node.
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$fieldnode = $context->find_field($label);
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// The behat field manager.
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return self::get_form_field($fieldnode, $context->getSession());
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}
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/**
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* Gets an instance of the form field.
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*
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* Not all the fields are part of a moodle form, in this
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* cases it fallsback to the generic form field. Also note
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* that this generic field type is using a generic setValue()
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* method from the Behat API, which is not always good to set
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* the value of form elements.
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*
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* @param NodeElement $fieldnode
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* @param Session $session The behat browser session
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* @return behat_form_field
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*/
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public static function get_form_field(NodeElement $fieldnode, Session $session) {
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// Get the field type if is part of a moodleform.
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if (self::is_moodleform_field($fieldnode)) {
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// This might go out of scope, finding element beyond the dom and fail. So fallback to guessing type.
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try {
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$type = self::get_field_node_type($fieldnode, $session);
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} catch (WebDriver\Exception\InvalidSelector $e) {
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$type = 'field';
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}
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}
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// If is not a moodleforms field use the base field type.
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if (empty($type)) {
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$type = 'field';
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}
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return self::get_field_instance($type, $fieldnode, $session);
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}
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/**
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* Returns the appropiate behat_form_field according to the provided type.
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*
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* It defaults to behat_form_field.
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*
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* @param string $type The field type (checkbox, date_selector, text...)
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* @param NodeElement $fieldnode
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* @param Session $session The behat session
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* @return behat_form_field
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*/
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public static function get_field_instance($type, NodeElement $fieldnode, Session $session) {
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global $CFG;
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// If the field is not part of a moodleform, we should still try to find out
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// which field type are we dealing with.
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if ($type == 'field' &&
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$guessedtype = self::guess_field_type($fieldnode, $session)) {
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$type = $guessedtype;
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}
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$classname = 'behat_form_' . $type;
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// Fallsback on the type guesser if nothing specific exists.
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$classpath = $CFG->libdir . '/behat/form_field/' . $classname . '.php';
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if (!file_exists($classpath)) {
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$classname = 'behat_form_field';
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$classpath = $CFG->libdir . '/behat/form_field/' . $classname . '.php';
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}
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// Returns the instance.
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require_once($classpath);
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return new $classname($session, $fieldnode);
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}
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/**
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* Guesses a basic field type and returns it.
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*
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* This method is intended to detect HTML form fields when no
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* moodleform-specific elements have been detected.
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*
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* @param NodeElement $fieldnode
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* @param Session $session
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* @return string|bool The field type or false.
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*/
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public static function guess_field_type(NodeElement $fieldnode, Session $session) {
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// Textareas are considered text based elements.
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$tagname = strtolower($fieldnode->getTagName());
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if ($tagname == 'textarea') {
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// If there is an iframe with $id + _ifr there a TinyMCE editor loaded.
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$xpath = '//div[@id="' . $fieldnode->getAttribute('id') . 'editable"]';
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if ($session->getPage()->find('xpath', $xpath)) {
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return 'editor';
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}
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return 'textarea';
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} else if ($tagname == 'input') {
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$type = $fieldnode->getAttribute('type');
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switch ($type) {
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case 'text':
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case 'password':
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case 'email':
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case 'file':
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return 'text';
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case 'checkbox':
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return 'checkbox';
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break;
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case 'radio':
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return 'radio';
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break;
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default:
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// Here we return false because all text-based
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// fields should be included in the first switch case.
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return false;
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}
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} else if ($tagname == 'select') {
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// Select tag.
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return 'select';
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}
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// We can not provide a closer field type.
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return false;
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}
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/**
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* Detects when the field is a moodleform field type.
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*
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* Note that there are fields inside moodleforms that are not
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* moodleform element; this method can not detect this, this will
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* be managed by get_field_node_type, after failing to find the form
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* element element type.
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*
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* @param NodeElement $fieldnode
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* @return bool
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*/
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protected static function is_moodleform_field(NodeElement $fieldnode) {
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// We already waited when getting the NodeElement and we don't want an exception if it's not part of a moodleform.
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$parentformfound = $fieldnode->find('xpath',
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"/ancestor::form[contains(concat(' ', normalize-space(@class), ' '), ' mform ')]"
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);
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return ($parentformfound != false);
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}
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/**
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* Recursive method to find the field type.
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*
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* Depending on the field the felement class node is in a level or in another. We
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* look recursively for a parent node with a 'felement' class to find the field type.
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*
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* @param NodeElement $fieldnode The current node.
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* @param Session $session The behat browser session
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* @return mixed A NodeElement if we continue looking for the element type and String or false when we are done.
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*/
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protected static function get_field_node_type(NodeElement $fieldnode, Session $session) {
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// Special handling for availability field which requires custom JavaScript.
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if ($fieldnode->getAttribute('name') === 'availabilityconditionsjson') {
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return 'availability';
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}
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if ($fieldnode->getTagName() == 'html') {
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return false;
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}
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// If the type is explictly set on the element pointed to by the label - use it.
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if ($type = $fieldnode->getParent()->getAttribute('data-fieldtype')) {
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if ($type == 'tags') {
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return 'autocomplete';
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}
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return $type;
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}
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if (!empty($fieldnode->find('xpath', '/ancestor::*[@data-passwordunmaskid]'))) {
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return 'passwordunmask';
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}
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// We look for a parent node with 'felement' class.
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if ($class = $fieldnode->getParent()->getAttribute('class')) {
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if (strstr($class, 'felement') != false) {
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// Remove 'felement f' from class value.
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return substr($class, 10);
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}
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// Stop propagation through the DOM, if it does not have a felement is not part of a moodle form.
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if (strstr($class, 'fcontainer') != false) {
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return false;
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}
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}
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return self::get_field_node_type($fieldnode->getParent(), $session);
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}
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/**
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* Gets an instance of the form field.
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*
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* Not all the fields are part of a moodle form, in this
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* cases it fallsback to the generic form field. Also note
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* that this generic field type is using a generic setValue()
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* method from the Behat API, which is not always good to set
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* the value of form elements.
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*
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* @deprecated since Moodle 2.6 MDL-39634 - please do not use this function any more.
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* @todo MDL-XXXXX This will be deleted in Moodle 2.8
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* @see behat_field_manager::get_form_field()
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* @param NodeElement $fieldnode
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* @param string $locator
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* @param Session $session The behat browser session
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* @return behat_form_field
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*/
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public static function get_field(NodeElement $fieldnode, $locator, Session $session) {
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debugging('Function behat_field_manager::get_field() is deprecated, ' .
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'please use function behat_field_manager::get_form_field() instead', DEBUG_DEVELOPER);
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return self::get_form_field($fieldnode, $session);
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}
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/**
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* Recursive method to find the field type.
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*
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* Depending on the field the felement class node is in a level or in another. We
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* look recursively for a parent node with a 'felement' class to find the field type.
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*
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* @deprecated since Moodle 2.6 MDL-39634 - please do not use this function any more.
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* @todo MDL-XXXXX This will be deleted in Moodle 2.8
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* @see behat_field_manager::get_field_node_type()
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* @param NodeElement $fieldnode The current node.
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* @param string $locator
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* @param Session $session The behat browser session
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* @return mixed A NodeElement if we continue looking for the element type and String or false when we are done.
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*/
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protected static function get_node_type(NodeElement $fieldnode, $locator, Session $session) {
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debugging('Function behat_field_manager::get_node_type() is deprecated, ' .
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'please use function behat_field_manager::get_field_node_type() instead', DEBUG_DEVELOPER);
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return self::get_field_node_type($fieldnode, $session);
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}
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}
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