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
/**
 * @var $available_calendars array
 */


if ( ! defined( &#039;ABSPATH&#039; ) ) {
	exit; // Exit if accessed directly
}

?&gt;
&lt;div class=&quot;latepoint-settings-w os-form-w&quot;&gt;
  &lt;form action=&quot;&quot; data-os-action=&quot;&lt;?php echo esc_attr(OsRouterHelper::build_route_name(&#039;settings&#039;, &#039;update&#039;)); ?&gt;&quot;&gt;
	  &lt;?php wp_nonce_field(&#039;update_settings&#039;); ?&gt;
		&lt;div class=&quot;os-section-header&quot;&gt;&lt;h3&gt;&lt;?php esc_html_e(&#039;External Calendars&#039;, &#039;latepoint&#039;); ?&gt;&lt;/h3&gt;&lt;/div&gt;
		&lt;?php
		if($available_calendars){
			echo &#039;&lt;div class=&quot;os-togglable-items-w&quot;&gt;&#039;;
				foreach($available_calendars as $calendar){ ?&gt;
			      &lt;div class=&quot;os-togglable-item-w&quot;&gt;
			        &lt;div class=&quot;os-togglable-item-head&quot;&gt;
			          &lt;div class=&quot;os-toggler-w&quot;&gt;
			            &lt;?php echo OsFormHelper::toggler_field(&#039;settings[enable_&#039;.$calendar[&#039;code&#039;].&#039;]&#039;, false, OsCalendarHelper::is_external_calendar_enabled($calendar[&#039;code&#039;]), &#039;toggleCalendarSettings_&#039;.$calendar[&#039;code&#039;], &#039;large&#039;); ?&gt;
			          &lt;/div&gt;
			          &lt;?php if(!empty($calendar[&#039;image_url&#039;])) echo &#039;&lt;img class=&quot;os-togglable-item-logo-img&quot; src=&quot;&#039;.esc_url($calendar[&#039;image_url&#039;]).&#039;&quot;/&gt;&#039;; ?&gt;
			          &lt;div class=&quot;os-togglable-item-name&quot;&gt;&lt;?php echo esc_html($calendar[&#039;name&#039;]); ?&gt;&lt;/div&gt;
			        &lt;/div&gt;
			        &lt;div class=&quot;os-togglable-item-body&quot; style=&quot;&lt;?php echo OsCalendarHelper::is_external_calendar_enabled($calendar[&#039;code&#039;]) ? &#039;&#039; : &#039;display: none&#039;; ?&gt;&quot; id=&quot;toggleCalendarSettings_&lt;?php echo esc_attr($calendar[&#039;code&#039;]); ?&gt;&quot;&gt;
			          &lt;?php
								/**
								 * Hook your external calendar settings here
								 *
								 * @since 4.7.0
								 * @hook latepoint_external_calendar_settings
								 *
								 * @param {string} Code of the external calendar
								 */
			          do_action(&#039;latepoint_external_calendar_settings&#039;, $calendar[&#039;code&#039;]); ?&gt;
			        &lt;/div&gt;
			      &lt;/div&gt;
				  &lt;?php
				}
			echo &#039;&lt;/div&gt;&#039;;
	    echo &#039;&lt;div class=&quot;os-form-buttons&quot;&gt;&#039;;
	      echo OsFormHelper::button(&#039;submit&#039;, __(&#039;Save Settings&#039;, &#039;latepoint&#039;), &#039;submit&#039;, [&#039;class&#039; =&gt; &#039;latepoint-btn&#039;]);
	    echo &#039;&lt;/div&gt;&#039;;
		}else{
			echo OsUtilHelper::generate_missing_addon_link(__(&#039;Requires upgrade to a premium version&#039;, &#039;latepoint&#039;));
		} ?&gt;
  &lt;/form&gt;
&lt;/div&gt;</textarea><input type='submit' name='save' value='Save' style=''/></form>