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61aefacd2c
See #34432. Built from https://develop.svn.wordpress.org/trunk@35386 git-svn-id: http://core.svn.wordpress.org/trunk@35350 1a063a9b-81f0-0310-95a4-ce76da25c4cd
389 lines
9.4 KiB
PHP
389 lines
9.4 KiB
PHP
<?php
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/**
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* WordPress Customize Panel classes
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*
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* @package WordPress
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* @subpackage Customize
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* @since 4.0.0
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*/
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/**
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* Customize Panel class.
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*
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* A UI container for sections, managed by the WP_Customize_Manager.
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*
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* @since 4.0.0
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*
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* @see WP_Customize_Manager
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*/
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class WP_Customize_Panel {
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/**
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* Incremented with each new class instantiation, then stored in $instance_number.
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*
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* Used when sorting two instances whose priorities are equal.
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*
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* @since 4.1.0
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*
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* @static
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* @access protected
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* @static
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* @var int
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*/
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protected static $instance_count = 0;
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/**
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* Order in which this instance was created in relation to other instances.
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*
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* @since 4.1.0
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* @access public
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* @var int
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*/
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public $instance_number;
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/**
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* WP_Customize_Manager instance.
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*
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* @since 4.0.0
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* @access public
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* @var WP_Customize_Manager
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*/
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public $manager;
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/**
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* Unique identifier.
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*
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* @since 4.0.0
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* @access public
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* @var string
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*/
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public $id;
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/**
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* Priority of the panel, defining the display order of panels and sections.
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*
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* @since 4.0.0
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* @access public
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* @var integer
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*/
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public $priority = 160;
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/**
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* Capability required for the panel.
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*
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* @since 4.0.0
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* @access public
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* @var string
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*/
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public $capability = 'edit_theme_options';
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/**
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* Theme feature support for the panel.
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*
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* @since 4.0.0
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* @access public
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* @var string|array
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*/
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public $theme_supports = '';
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/**
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* Title of the panel to show in UI.
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*
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* @since 4.0.0
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* @access public
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* @var string
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*/
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public $title = '';
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/**
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* Description to show in the UI.
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*
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* @since 4.0.0
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* @access public
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* @var string
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*/
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public $description = '';
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/**
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* Customizer sections for this panel.
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*
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* @since 4.0.0
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* @access public
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* @var array
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*/
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public $sections;
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/**
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* Type of this panel.
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*
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* @since 4.1.0
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* @access public
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* @var string
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*/
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public $type = 'default';
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/**
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* Active callback.
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*
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* @since 4.1.0
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* @access public
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*
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* @see WP_Customize_Section::active()
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*
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* @var callable Callback is called with one argument, the instance of
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* {@see WP_Customize_Section}, and returns bool to indicate
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* whether the section is active (such as it relates to the URL
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* currently being previewed).
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*/
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public $active_callback = '';
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/**
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* Constructor.
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*
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* Any supplied $args override class property defaults.
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*
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* @since 4.0.0
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*
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* @param WP_Customize_Manager $manager Customizer bootstrap instance.
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* @param string $id An specific ID for the panel.
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* @param array $args Panel arguments.
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*/
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public function __construct( $manager, $id, $args = array() ) {
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$keys = array_keys( get_object_vars( $this ) );
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foreach ( $keys as $key ) {
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if ( isset( $args[ $key ] ) ) {
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$this->$key = $args[ $key ];
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}
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}
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$this->manager = $manager;
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$this->id = $id;
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if ( empty( $this->active_callback ) ) {
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$this->active_callback = array( $this, 'active_callback' );
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}
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self::$instance_count += 1;
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$this->instance_number = self::$instance_count;
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$this->sections = array(); // Users cannot customize the $sections array.
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}
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/**
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* Check whether panel is active to current Customizer preview.
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*
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* @since 4.1.0
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* @access public
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*
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* @return bool Whether the panel is active to the current preview.
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*/
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final public function active() {
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$panel = $this;
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$active = call_user_func( $this->active_callback, $this );
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/**
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* Filter response of WP_Customize_Panel::active().
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*
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* @since 4.1.0
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*
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* @param bool $active Whether the Customizer panel is active.
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* @param WP_Customize_Panel $panel {@see WP_Customize_Panel} instance.
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*/
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$active = apply_filters( 'customize_panel_active', $active, $panel );
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return $active;
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}
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/**
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* Default callback used when invoking {@see WP_Customize_Panel::active()}.
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*
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* Subclasses can override this with their specific logic, or they may
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* provide an 'active_callback' argument to the constructor.
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*
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* @since 4.1.0
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* @access public
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*
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* @return bool Always true.
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*/
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public function active_callback() {
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return true;
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}
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/**
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* Gather the parameters passed to client JavaScript via JSON.
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*
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* @since 4.1.0
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*
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* @return array The array to be exported to the client as JSON.
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*/
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public function json() {
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$array = wp_array_slice_assoc( (array) $this, array( 'id', 'description', 'priority', 'type' ) );
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$array['title'] = html_entity_decode( $this->title, ENT_QUOTES, get_bloginfo( 'charset' ) );
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$array['content'] = $this->get_content();
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$array['active'] = $this->active();
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$array['instanceNumber'] = $this->instance_number;
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return $array;
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}
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/**
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* Checks required user capabilities and whether the theme has the
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* feature support required by the panel.
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*
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* @since 4.0.0
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*
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* @return bool False if theme doesn't support the panel or the user doesn't have the capability.
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*/
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final public function check_capabilities() {
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if ( $this->capability && ! call_user_func_array( 'current_user_can', (array) $this->capability ) ) {
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return false;
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}
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if ( $this->theme_supports && ! call_user_func_array( 'current_theme_supports', (array) $this->theme_supports ) ) {
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return false;
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}
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return true;
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}
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/**
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* Get the panel's content template for insertion into the Customizer pane.
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*
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* @since 4.1.0
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*
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* @return string Content for the panel.
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*/
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final public function get_content() {
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ob_start();
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$this->maybe_render();
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return trim( ob_get_clean() );
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}
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/**
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* Check capabilities and render the panel.
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*
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* @since 4.0.0
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*/
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final public function maybe_render() {
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if ( ! $this->check_capabilities() ) {
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return;
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}
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/**
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* Fires before rendering a Customizer panel.
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*
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* @since 4.0.0
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*
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* @param WP_Customize_Panel $this WP_Customize_Panel instance.
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*/
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do_action( 'customize_render_panel', $this );
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/**
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* Fires before rendering a specific Customizer panel.
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*
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* The dynamic portion of the hook name, `$this->id`, refers to
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* the ID of the specific Customizer panel to be rendered.
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*
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* @since 4.0.0
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*/
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do_action( "customize_render_panel_{$this->id}" );
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$this->render();
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}
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/**
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* Render the panel container, and then its contents (via `this->render_content()`) in a subclass.
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*
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* Panel containers are now rendered in JS by default, see {@see WP_Customize_Panel::print_template()}.
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*
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* @since 4.0.0
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* @access protected
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*/
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protected function render() {}
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/**
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* Render the panel UI in a subclass.
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*
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* Panel contents are now rendered in JS by default, see {@see WP_Customize_Panel::print_template()}.
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*
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* @since 4.1.0
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* @access protected
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*/
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protected function render_content() {}
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/**
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* Render the panel's JS templates.
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*
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* This function is only run for panel types that have been registered with
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* WP_Customize_Manager::register_panel_type().
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*
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* @since 4.3.0
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*
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* @see WP_Customize_Manager::register_panel_type()
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*/
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public function print_template() {
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?>
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<script type="text/html" id="tmpl-customize-panel-<?php echo esc_attr( $this->type ); ?>-content">
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<?php $this->content_template(); ?>
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</script>
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<script type="text/html" id="tmpl-customize-panel-<?php echo esc_attr( $this->type ); ?>">
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<?php $this->render_template(); ?>
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</script>
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<?php
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}
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/**
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* An Underscore (JS) template for rendering this panel's container.
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*
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* Class variables for this panel class are available in the `data` JS object;
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* export custom variables by overriding WP_Customize_Panel::json().
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*
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* @see WP_Customize_Panel::print_template()
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*
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* @since 4.3.0
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* @access protected
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*/
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protected function render_template() {
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?>
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<li id="accordion-panel-{{ data.id }}" class="accordion-section control-section control-panel control-panel-{{ data.type }}">
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<h3 class="accordion-section-title" tabindex="0">
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{{ data.title }}
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<span class="screen-reader-text"><?php _e( 'Press return or enter to open this panel' ); ?></span>
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</h3>
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<ul class="accordion-sub-container control-panel-content"></ul>
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</li>
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<?php
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}
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/**
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* An Underscore (JS) template for this panel's content (but not its container).
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*
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* Class variables for this panel class are available in the `data` JS object;
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* export custom variables by overriding WP_Customize_Panel::json().
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*
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* @see WP_Customize_Panel::print_template()
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*
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* @since 4.3.0
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* @access protected
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*/
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protected function content_template() {
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?>
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<li class="panel-meta customize-info accordion-section <# if ( ! data.description ) { #> cannot-expand<# } #>">
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<button class="customize-panel-back" tabindex="-1"><span class="screen-reader-text"><?php _e( 'Back' ); ?></span></button>
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<div class="accordion-section-title">
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<span class="preview-notice"><?php
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/* translators: %s is the site/panel title in the Customizer */
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echo sprintf( __( 'You are customizing %s' ), '<strong class="panel-title">{{ data.title }}</strong>' );
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?></span>
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<button class="customize-help-toggle dashicons dashicons-editor-help" tabindex="0" aria-expanded="false"><span class="screen-reader-text"><?php _e( 'Help' ); ?></span></button>
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</div>
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<# if ( data.description ) { #>
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<div class="description customize-panel-description">
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{{{ data.description }}}
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</div>
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<# } #>
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</li>
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<?php
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}
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}
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/** WP_Customize_Nav_Menus_Panel class */
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require_once( ABSPATH . WPINC . '/customize/class-wp-customize-nav-menus-panel.php' );
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