<?php

/**

 * WordPress Customize Section classes

 *

 * @package WordPress

 * @subpackage Customize

 * @since 3.4.0

 */

/**

 * Customize Section class.

 *

 * A UI container for controls, managed by the WP_Customize_Manager class.

 *

 * @since 3.4.0

 *

 * @see WP_Customize_Manager

 */

class WP_Customize_Section {

	/**

	 * Incremented with each new class instantiation, then stored in $instance_number.

	 *

	 * Used when sorting two instances whose priorities are equal.

	 *

	 * @since 4.1.0

	 * @var int

	 */

	protected static $instance_count = 0;

	/**

	 * Order in which this instance was created in relation to other instances.

	 *

	 * @since 4.1.0

	 * @var int

	 */

	public $instance_number;

	/**

	 * WP_Customize_Manager instance.

	 *

	 * @since 3.4.0

	 * @var WP_Customize_Manager

	 */

	public $manager;

	/**

	 * Unique identifier.

	 *

	 * @since 3.4.0

	 * @var string

	 */

	public $id;

	/**

	 * Priority of the section which informs load order of sections.

	 *

	 * @since 3.4.0

	 * @var integer

	 */

	public $priority = 160;

	/**

	 * Panel in which to show the section, making it a sub-section.

	 *

	 * @since 4.0.0

	 * @var string

	 */

	public $panel = '';

	/**

	 * Capability required for the section.

	 *

	 * @since 3.4.0

	 * @var string

	 */

	public $capability = 'edit_theme_options';

	/**

	 * Theme feature support for the section.

	 *

	 * @since 3.4.0

	 * @var string|array

	 */

	public $theme_supports = '';

	/**

	 * Title of the section to show in UI.

	 *

	 * @since 3.4.0

	 * @var string

	 */

	public $title = '';

	/**

	 * Description to show in the UI.

	 *

	 * @since 3.4.0

	 * @var string

	 */

	public $description = '';

	/**

	 * Customizer controls for this section.

	 *

	 * @since 3.4.0

	 * @var array

	 */

	public $controls;

	/**

	 * Type of this section.

	 *

	 * @since 4.1.0

	 * @var string

	 */

	public $type = 'default';

	/**

	 * Active callback.

	 *

	 * @since 4.1.0

	 *

	 * @see WP_Customize_Section::active()

	 *

	 * @var callable Callback is called with one argument, the instance of

	 */

	public $active_callback = '';

	/**

	 * Constructor.

	 *

	 * Any supplied $args override class property defaults.

	 *

	 * @since 3.4.0

	 *

	 * @param WP_Customize_Manager $manager Customizer bootstrap instance.

	 * @param string               $id      An specific ID of the section.

	 * @param array                $args    Section arguments.

	 */

	public function __construct( $manager, $id, $args = array() ) {

		$keys = array_keys( get_object_vars( $this ) );

		foreach ( $keys as $key ) {

			if ( isset( $args[ $key ] ) ) {

				$this->$key = $args[ $key ];

			}

		}

		$this->manager = $manager;

		$this->id = $id;

		if ( empty( $this->active_callback ) ) {

			$this->active_callback = array( $this, 'active_callback' );

		}

		self::$instance_count += 1;

		$this->instance_number = self::$instance_count;

		$this->controls = array(); // Users cannot customize the $controls array.

	}

	/**

	 * Check whether section is active to current Customizer preview.

	 *

	 * @since 4.1.0

	 *

	 * @return bool Whether the section is active to the current preview.

	 */

	final public function active() {

		$section = $this;

		$active = call_user_func( $this->active_callback, $this );

		/**

		 *

		 * @since 4.1.0

		 *

		 * @param bool                 $active  Whether the Customizer section is active.

		 */

		$active = apply_filters( 'customize_section_active', $active, $section );

		return $active;

	}

	/**

	 *

	 * Subclasses can override this with their specific logic, or they may provide

	 * an 'active_callback' argument to the constructor.

	 *

	 * @since 4.1.0

	 *

	 */

	public function active_callback() {

		return true;

	}

	/**

	 * Gather the parameters passed to client JavaScript via JSON.

	 *

	 * @since 4.1.0

	 *

	 * @return array The array to be exported to the client as JSON.

	 */

	public function json() {

		$array['content'] = $this->get_content();

		$array['active'] = $this->active();

		$array['instanceNumber'] = $this->instance_number;

		return $array;

	}

	/**

	 * Checks required user capabilities and whether the theme has the

	 * feature support required by the section.

	 *

	 * @since 3.4.0

	 *

	 * @return bool False if theme doesn't support the section or user doesn't have the capability.

	 */

	final public function check_capabilities() {

		if ( $this->capability && ! call_user_func_array( 'current_user_can', (array) $this->capability ) ) {

			return false;

		}

		if ( $this->theme_supports && ! call_user_func_array( 'current_theme_supports', (array) $this->theme_supports ) ) {

			return false;

		}

		return true;

	}

	/**

	 *

	 * @since 4.1.0

	 *

	 * @return string Contents of the section.

	 */

	final public function get_content() {

		ob_start();

		$this->maybe_render();

	}

	/**

	 * Check capabilities and render the section.

	 *

	 * @since 3.4.0

	 */

	final public function maybe_render() {

		if ( ! $this->check_capabilities() ) {

			return;

		}

		/**

		 * Fires before rendering a Customizer section.

		 *

		 * @since 3.4.0

		 *

		 * @param WP_Customize_Section $this WP_Customize_Section instance.

		 */

		do_action( 'customize_render_section', $this );

		/**

		 * Fires before rendering a specific Customizer section.

		 *

		 * The dynamic portion of the hook name, `$this->id`, refers to the ID

		 * of the specific Customizer section to be rendered.

		 *

		 * @since 3.4.0

		 */

		do_action( "customize_render_section_{$this->id}" );

		$this->render();

	}

	/**

	 *

	 * @since 3.4.0

	 */

		?>

			<h3 class="accordion-section-title" tabindex="0">

			</h3>

			<ul class="accordion-section-content">

			</ul>

		</li>

		<?php

	}

}

/**

 *

 *

 */