SetLightboxConfigHandler.php

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<?php

namespace Elgg\Javascript;

class SetLightboxConfigHandler {
    
    public function __invoke(\Elgg\Event $event) {
        $return = $event->getValue();
    
        $return['lightbox'] = [
            'current' => elgg_echo('js:lightbox:current', ['{current}', '{total}']),
            'previous' => elgg_view_icon('caret-left'),
            'next' => elgg_view_icon('caret-right'),
            'close' => elgg_view_icon('times'),
            'opacity' => 0.5,
            'maxWidth' => '990px',
            'maxHeight' => '990px',
            'initialWidth' => '300px',
            'initialHeight' => '300px',
        ];
    
        return $return;
    }
}