Preview: class-wp-customize-section.php
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<?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
*/
#[AllowDynamicProperties]
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 int
*/
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 features required to support the section.
*
* @since 3.4.0
* @var string|string[]
*/
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
* WP_Customize_Section, and returns bool to indicate whether
* the section is active (such as it relates to the URL currently
* being previewed).
*/
public $active_callback = '';
/**
* Show the description or hide it behind the help icon.
*
* @since 4.7.0
*
* @var bool Indicates whether the Section's description should be
* hidden behind a help icon ("?") in the Section header,
* similar to how help icons are displayed on Panels.
*/
public $description_hidden = false;
/**
* Constructor.
*
* Any supplied $args override class property defaults.
*
* @since 3.4.0
*
* @param WP_Customize_Manager $manager Customizer bootstrap instance.
* @param string $id A specific ID of the section.
* @param array $args {
* Optional. Array of properties for the new Section object. Default empty array.
*
* @type int $priority Priority of the section, defining the display order
* of panels and sections. Default 160.
* @type string $panel The panel this section belongs to (if any).
* Default empty.
* @type string $capability Capability required for the section.
* Default 'edit_theme_options'
* @type string|string[] $theme_supports Theme features required to support the section.
* @type string $title Title of the section to show in UI.
* @type string $description Description to show in the UI.
* @type string $type Type of the section.
* @type callable $active_callback Active callback.
* @type bool $description_hidden Hide the description behind a help icon,
* instead of inline above the first control.
* Default false.
* }
*/
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 );
/**
* Filters response of WP_Customize_Section::active().
*
* @since 4.1.0
*
* @param bool $active Whether the Customizer section is active.
* @param WP_Customize_Section $section WP_Customize_Section instance.
*/
$active = apply_filters( 'customize_section_active', $active, $section );
return $active;
}
/**
* Default callback used when invoking WP_Customize_Section::active().
*
* Subclasses can override this with their specific logic, or they may provide
* an 'active_callback' argument to the constructor.
*
* @since 4.1.0
*
* @return true Always true.
*/
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 = wp_array_slice_assoc( (array) $this, array( 'id', 'description', 'priority', 'panel', 'type', 'description_hidden' ) );
$array['title'] = html_entity_decode( $this->title, ENT_QUOTES, get_bloginfo( 'charset' ) );
$array['content'] = $this->get_content();
$array['active'] = $this->active();
$array['instanceNumber'] = $this->instance_number;
if ( $this->panel ) {
/* translators: ▸ is the unicode right-pointing triangle. %s: Section title in the Customizer. */
$array['customizeAction'] = sprintf( __( 'Customizing ▸ %s' ), esc_html( $this->manager->get_panel( $this->panel )->title ) );
} else {
$array['customizeAction'] = __( 'Customizing' );
}
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 && ! current_user_can( $this->capability ) ) {
return false;
}
if ( $this->theme_supports && ! current_theme_supports( ...(array) $this->theme_supports ) ) {
return false;
}
return true;
}
/**
* Get the section's content for insertion into the Customizer pane.
*
* @since 4.1.0
*
* @return string Contents of the section.
*/
final public function get_content() {
ob_start();
$this->maybe_render();
return trim( ob_get_clean() );
}
/**
* 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 $section 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();
}
/**
* Render the section UI in a subclass.
*
* Sections are now rendered in JS by default, see WP_Customize_Section::print_template().
*
* @since 3.4.0
*/
protected function render() {}
/**
* Render the section's JS template.
*
* This function is only run for section types that have been registered with
* WP_Customize_Manager::register_section_type().
*
* @since 4.3.0
*
* @see WP_Customize_Manager::render_template()
*/
public function print_template() {
?>
<script type="text/html" id="tmpl-customize-section-<?php echo $this->type; ?>">
<?php $this->render_template(); ?>
</script>
<?php
}
/**
* An Underscore (JS) template for rendering this section.
*
* Class variables for this section class are available in the `data` JS object;
* export custom variables by overriding WP_Customize_Section::json().
*
* @since 4.3.0
*
* @see WP_Customize_Section::print_template()
*/
protected function render_template() {
?>
<li id="accordion-section-{{ data.id }}" class="accordion-section control-section control-section-{{ data.type }}">
<h3 class="accordion-section-title" tabindex="0">
{{ data.title }}
<span class="screen-reader-text">
<?php
/* translators: Hidden accessibility text. */
_e( 'Press return or enter to open this section' );
?>
</span>
</h3>
<ul class="accordion-section-content">
<li class="customize-section-description-container section-meta <# if ( data.description_hidden ) { #>customize-info<# } #>">
<div class="customize-section-title">
<button class="customize-section-back" tabindex="-1">
<span class="screen-reader-text">
<?php
/* translators: Hidden accessibility text. */
_e( 'Back' );
?>
</span>
</button>
<h3>
<span class="customize-action">
{{{ data.customizeAction }}}
</span>
{{ data.title }}
</h3>
<# if ( data.description && data.description_hidden ) { #>
<button type="button" class="customize-help-toggle dashicons dashicons-editor-help" aria-expanded="false"><span class="screen-reader-text">
<?php
/* translators: Hidden accessibility text. */
_e( 'Help' );
?>
</span></button>
<div class="description customize-section-description">
{{{ data.description }}}
</div>
<# } #>
<div class="customize-control-notifications-container"></div>
</div>
<# if ( data.description && ! data.description_hidden ) { #>
<div class="description customize-section-description">
{{{ data.description }}}
</div>
<# } #>
</li>
</ul>
</li>
<?php
}
}
/** WP_Customize_Themes_Section class */
require_once ABSPATH . WPINC . '/customize/class-wp-customize-themes-section.php';
/** WP_Customize_Sidebar_Section class */
require_once ABSPATH . WPINC . '/customize/class-wp-customize-sidebar-section.php';
/** WP_Customize_Nav_Menu_Section class */
require_once ABSPATH . WPINC . '/customize/class-wp-customize-nav-menu-section.php';
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