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Flashmessages.php
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Flashmessages.php
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<?php
/**
* Flash message view helper
*
* PHP version 8
*
* Copyright (C) Villanova University 2010.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2,
* as published by the Free Software Foundation.
*
* This program 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 this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* @category VuFind
* @package View_Helpers
* @author Demian Katz <demian.katz@villanova.edu>
* @license http://opensource.org/licenses/gpl-2.0.php GNU General Public License
* @link https://vufind.org/wiki/development Wiki
*/
namespace VuFind\View\Helper\Root;
use Laminas\Mvc\Plugin\FlashMessenger\FlashMessenger;
use Laminas\View\Helper\AbstractHelper;
use function is_array;
/**
* Flash message view helper
*
* @category VuFind
* @package View_Helpers
* @author Demian Katz <demian.katz@villanova.edu>
* @license http://opensource.org/licenses/gpl-2.0.php GNU General Public License
* @link https://vufind.org/wiki/development Wiki
*/
class Flashmessages extends AbstractHelper
{
/**
* Flash messenger controller helper
*
* @var FlashMessenger
*/
protected $fm;
/**
* Flash messenger namespaces
*
* @var string[]
*/
protected $namespaces = ['error', 'warning', 'info', 'success', 'default'];
/**
* Constructor
*
* @param FlashMessenger $fm Flash messenger controller helper
*/
public function __construct(FlashMessenger $fm)
{
$this->fm = $fm;
}
/**
* Get the CSS class to correspond with a messenger namespace
*
* @param string $ns Namespace
*
* @return string
*/
protected function getClassForNamespace($ns)
{
return $ns;
}
/**
* Generate flash message <div>'s with appropriate classes based on message type.
*
* @return string $html
*/
public function __invoke()
{
if (!empty($this->getView()->layout()->lightboxChild)) {
return '';
}
$html = '';
foreach ($this->namespaces as $ns) {
$messages = array_merge(
$this->fm->getMessages($ns),
$this->fm->getCurrentMessages($ns)
);
foreach (array_unique($messages, SORT_REGULAR) as $msg) {
$html .= '<div role="alert" class="'
. $this->getClassForNamespace($ns) . '"';
if (isset($msg['dataset'])) {
foreach ($msg['dataset'] as $attr => $value) {
$html .= ' data-' . $attr . '="'
. htmlspecialchars($value) . '"';
}
}
$html .= '>';
// Advanced form:
if (is_array($msg)) {
$msgHtml = $msg['html'] ?? false;
$message = $msg['msg'];
$escapeHtml = $this->getView()->plugin('escapeHtml');
// Process tokens and translate the message unless requested not
// to:
if ($msg['translate'] ?? true) {
$translate = $this->getView()->plugin('translate');
$tokens = $msg['tokens'] ?? [];
if ($tokens) {
if ($msg['translateTokens'] ?? false) {
$tokens = array_map(
$translate,
$tokens
);
}
// Escape tokens if the main message is HTML, unless
// requested not to by setting tokensHtml to true:
if ($msgHtml && !($msg['tokensHtml'] ?? false)) {
$tokens = array_map($escapeHtml, $tokens);
}
}
$default = $msg['default'] ?? null;
// Translate the message:
$message = $translate($message, $tokens, $default);
}
// Escape the message unless requested not to:
if (!$msgHtml) {
$message = $escapeHtml($message);
}
$html .= $message;
} else {
// Basic default string:
$transEsc = $this->getView()->plugin('transEsc');
$html .= $transEsc($msg);
}
$html .= '</div>';
}
$this->fm->clearMessages($ns);
$this->fm->clearCurrentMessages($ns);
}
return $html;
}
}