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<?php
// This file is part of Moodle - http://moodle.org/
//
// Moodle is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Moodle is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
/**
* Moodle editor field.
*
* @package core_form
* @category test
* @copyright 2012 David Monllaó
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
// NOTE: no MOODLE_INTERNAL test here, this file may be required by behat before including /config.php.
use Behat\Mink\Element\NodeElement as NodeElement;
require_once(__DIR__ . '/behat_form_textarea.php');
/**
* Moodle editor field.
*
* @package core_form
* @category test
* @copyright 2012 David Monllaó
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
class behat_form_editor extends behat_form_textarea {
/**
* Sets the value to a field.
*
* @param string $value
*/
public function set_value($value): void {
$editorid = $this->field->getAttribute('id');
if ($this->running_javascript()) {
$value = addslashes($value);
// This will be transported in JSON, which doesn't allow newlines in strings, so we must escape them.
$value = str_replace("\n", "\\n", $value);
behat_base::execute_in_matching_contexts('editor', 'set_editor_value', [
$editorid,
$value,
]);
} else {
parent::set_value($value);
}
}
/**
* Returns the current value of the select element.
*
* @return string
*/
public function get_value(): string {
if ($this->running_javascript()) {
// Give any listening editors a chance to persist the value to the textarea.
// Some editors only do this on form submission or similar events.
behat_base::execute_in_matching_contexts('editor', 'store_current_value', [
$this->field->getAttribute('id'),
]);
}
return parent::get_value();
}
/**
* Select all the text in the form field.
*
*/
public function select_text() {
// NodeElement.keyPress simply doesn't work.
if (!$this->running_javascript()) {
throw new coding_exception('Selecting text requires javascript.');
}
$editorid = $this->field->getAttribute('id');
$js = ' (function() {
var e = document.getElementById("'.$editorid.'editable"),
r = rangy.createRange(),
s = rangy.getSelection();
while ((e.firstChild !== null) && (e.firstChild.nodeType != document.TEXT_NODE)) {
e = e.firstChild;
}
e.focus();
r.selectNodeContents(e);
s.setSingleRange(r);
}()); ';
behat_base::execute_script_in_session($this->session, $js);
}
/**
* Matches the provided value against the current field value.
*
* @param string $expectedvalue
* @return bool The provided value matches the field value?
*/
public function matches($expectedvalue) {
// Fetch the actual value to save fetching it multiple times.
$actualvalue = $this->get_value();
if ($this->text_matches($expectedvalue, $actualvalue)) {
// The text is an exact match already.
return true;
}
if ($this->text_matches("<p>{$expectedvalue}</p>", $actualvalue)) {
// A text editor may silently wrap the content in p tags.
return true;
}
// Standardise both the expected value and the actual field value.
// We are likely dealing with HTML content, given this is an editor.
$expectedvalue = $this->standardise_html($expectedvalue);
$actualvalue = $this->standardise_html($actualvalue);
// Note: We don't need to worry about the floats here that we care about in text_matches.
// That condition isn't relevant to the content of an editor.
if ($expectedvalue === $actualvalue) {
return true;
}
return false;
}
/**
* Standardises the HTML content for comparison.
*
* @param string $html The HTML content to standardise
* @return string The standardised HTML content
*/
protected function standardise_html(string $html): string {
$document = new DOMDocument();
$errorstate = libxml_use_internal_errors(true);
// Format the whitespace nicely.
$document->preserveWhiteSpace = false;
$document->formatOutput = true;
// Wrap the content in a DIV element so that it is not parsed weirdly.
// Note: We must remove newlines too because DOMDocument does not do so, despite preserveWhiteSpace being false.
// Unfortunately this is slightly limited in that it will also remove newlines from <pre> content and similar.
$document->loadHTML(str_replace("\n", "", "<div>{$html}</div>"), LIBXML_HTML_NOIMPLIED | LIBXML_HTML_NODEFDTD);
$document->normalizeDocument();
libxml_clear_errors();
libxml_use_internal_errors($errorstate);
// Save the content of the 'div' element, removing the <div> and </div> tags at the start and end.
return trim(substr(
$document->saveHTML($document->getElementsByTagName('div')->item(0)),
5,
-6
));
}
}