golden hour

/var/www/html/wp-content/plugins/the-events-calendar/common/src/Tribe

File/Folder	Size	Actions
Abstract_Deactivation.php	1.65 KB
Abstract_Plugin_Register.php	1.25 KB
Admin	-
Ajax	-
App_Shop.php	9.87 KB
Asset	-
Assets.php	24.69 KB
Assets_Pipeline.php	1.7 KB
Autoloader.php	8.31 KB
Cache.php	18.13 KB
Cache_Listener.php	5.92 KB
Changelog_Reader.php	1.5 KB
Container.php	11.36 KB
Context	-
Context.php	48.65 KB
Cost_Utils.php	16.44 KB
Credits.php	2.9 KB
Customizer	-
Customizer.php	25.29 KB
DB_Lock.php	10.04 KB
Data.php	5.21 KB
Date_Utils.php	48.59 KB
Db.php	876 B
Debug.php	1.54 KB
Debug_Bar	-
Dependency.php	16.47 KB
Deprecation.php	4.84 KB
Dialog	-
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Editor	-
Editor.php	6.58 KB
Error.php	4.51 KB
Exception.php	2.08 KB
Extension.php	13 KB
Extension_Loader.php	3.96 KB
Feature_Detection.php	7.51 KB
Field.php	22.38 KB
Field_Conditional.php	2.37 KB
Freemius.php	1.34 KB
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Log.php	11.33 KB
Main.php	23.13 KB
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Notices.php	1.49 KB
PUE	-
Plugin_Meta_Links.php	3.45 KB
Plugins.php	5.32 KB
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Post_History.php	2.96 KB
Post_Transient.php	5.76 KB
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Promise.php	9.04 KB
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Repository.php	100.06 KB
Rewrite.php	34.63 KB
Service_Providers	-
Settings.php	23.81 KB
Settings_Manager.php	9.78 KB
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Simple_Table.php	4.01 KB
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Support.php	14.43 KB
Tabbed_View	-
Tabbed_View.php	8.1 KB
Template.php	43.65 KB
Template_Factory.php	5.45 KB
Template_Part_Cache.php	2.74 KB
Templates.php	1.79 KB
Terms.php	1.51 KB
Timezones.php	18.21 KB
Tooltip	-
Tracker.php	12.51 KB
Traits	-
Updater.php	3.78 KB
Utils	-
Validate.php	16.54 KB
Validator	-
View_Helpers.php	9.64 KB
Widget	-

Edit: Field_Conditional.php

<?php

/**
 * Class Tribe__Field_Conditional
 *
 * A work-around for PHP 5.2 lack of closure support to wrap
 *
 * Example usage: in the context of the definition of a list of fields to be fed to the Tribe__Settings class:
 *
 *      $fields = array(
 *          'foo' => array(
 *              'type' => 'checkbox_bool',
 *              // ...
 *          ),
 *          'bar' => array(
 *              'type' => 'text'
 *              'validate_if' => new Tribe__Field_Conditional( 'foo', 'tribe_is_truthy' )
 *              'conditional' => tribe_is_truthy( tribe_get_option( 'foo' ) ),
 *              // ...
 *          ),
 *      );
 *
 * The above will modify the validation logic to make it so that the field will not be validated if
 * the parent (`foo` in the example) is not "truthy".
 * If you need to hide/show the field conditionally use the `conditional` attribute of the field.
 *
 * @since 4.7.7
 */
class Tribe__Field_Conditional {

/**
	 * @var string The slug of the field the condition
	 */
	protected $depends_on;
	/**
	 * @var bool
	 */
	protected $condition;

/**
	 * Tribe__Field_Conditional constructor.
	 *
	 * @since 4.7.7
	 *
	 * @param      string    $depends_on_field The slug or identifier of the parent field.
	 * @param mixed|callable $condition        Either a valid callable function or method or a
	 *                                         value that will be used for a shallow comparison.
	 */
	public function __construct( $depends_on_field, $condition = true ) {
		$this->depends_on = $depends_on_field;
		$this->condition  = $condition;
	}

/**
	 * @param       mixed $value  The value to check, typically the parent field value.
	 * @param array       $fields An array of all the current fields; this will be passed to
	 *                            the condition callback function for context if the condition
	 *                            is a callable function or method.
	 *
	 * @return bool Whether the check was successful (the parent field does have the required
	 *              value) or not.
	 */
	public function check( $value, array $fields ) {
		return is_callable( $this->condition )
			? call_user_func( $this->condition, $value, $fields )
			: $value == $this->condition;
	}

/**
	 * Return the id/slug of the field this condition depends on.
	 *
	 * @since 4.7.7
	 *
	 * @return string
	 */
	public function depends_on() {
		return $this->depends_on;
	}
}