wp/wp-includes/class-wp-customize-section.php
changeset 5 5e2f62d02dcd
parent 0 d970ebf37754
child 7 cf61fcea0001
--- a/wp/wp-includes/class-wp-customize-section.php	Mon Jun 08 16:11:51 2015 +0000
+++ b/wp/wp-includes/class-wp-customize-section.php	Tue Jun 09 03:35:32 2015 +0200
@@ -1,96 +1,453 @@
 <?php
 /**
- * Customize Section Class.
+ * 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
+	 * @access protected
+	 * @var int
+	 */
+	protected static $instance_count = 0;
+
+	/**
+	 * Order in which this instance was created in relation to other instances.
+	 *
+	 * @since 4.1.0
+	 * @access public
+	 * @var int
+	 */
+	public $instance_number;
+
+	/**
+	 * WP_Customize_Manager instance.
+	 *
+	 * @since 3.4.0
+	 * @access public
+	 * @var WP_Customize_Manager
+	 */
 	public $manager;
+
+	/**
+	 * Unique identifier.
+	 *
+	 * @since 3.4.0
+	 * @access public
+	 * @var string
+	 */
 	public $id;
-	public $priority       = 10;
-	public $capability     = 'edit_theme_options';
+
+	/**
+	 * Priority of the section which informs load order of sections.
+	 *
+	 * @since 3.4.0
+	 * @access public
+	 * @var integer
+	 */
+	public $priority = 160;
+
+	/**
+	 * Panel in which to show the section, making it a sub-section.
+	 *
+	 * @since 4.0.0
+	 * @access public
+	 * @var string
+	 */
+	public $panel = '';
+
+	/**
+	 * Capability required for the section.
+	 *
+	 * @since 3.4.0
+	 * @access public
+	 * @var string
+	 */
+	public $capability = 'edit_theme_options';
+
+	/**
+	 * Theme feature support for the section.
+	 *
+	 * @since 3.4.0
+	 * @access public
+	 * @var string|array
+	 */
 	public $theme_supports = '';
-	public $title          = '';
-	public $description    = '';
+
+	/**
+	 * Title of the section to show in UI.
+	 *
+	 * @since 3.4.0
+	 * @access public
+	 * @var string
+	 */
+	public $title = '';
+
+	/**
+	 * Description to show in the UI.
+	 *
+	 * @since 3.4.0
+	 * @access public
+	 * @var string
+	 */
+	public $description = '';
+
+	/**
+	 * Customizer controls for this section.
+	 *
+	 * @since 3.4.0
+	 * @access public
+	 * @var array
+	 */
 	public $controls;
 
 	/**
+	 * Type of this section.
+	 *
+	 * @since 4.1.0
+	 * @access public
+	 * @var string
+	 */
+	public $type = 'default';
+
+	/**
+	 * Active callback.
+	 *
+	 * @since 4.1.0
+	 * @access public
+	 *
+	 * @see WP_Customize_Section::active()
+	 *
+	 * @var callable Callback is called with one argument, the instance of
+	 *               {@see 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 = '';
+
+	/**
 	 * Constructor.
 	 *
+	 * Any supplied $args override class property defaults.
+	 *
 	 * @since 3.4.0
 	 *
-	 * @param WP_Customize_Manager $manager
-	 * @param string $id An specific ID of the section.
-	 * @param array $args Section arguments.
+	 * @param WP_Customize_Manager $manager Customizer bootstrap instance.
+	 * @param string               $id      An specific ID of the section.
+	 * @param array                $args    Section arguments.
 	 */
-	function __construct( $manager, $id, $args = array() ) {
-		$keys = array_keys( get_class_vars( __CLASS__ ) );
+	public function __construct( $manager, $id, $args = array() ) {
+		$keys = array_keys( get_object_vars( $this ) );
 		foreach ( $keys as $key ) {
-			if ( isset( $args[ $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.
-
-		return $this;
 	}
 
 	/**
-	 * Check if the theme supports the section and check user capabilities.
+	 * Check whether section is active to current Customizer preview.
+	 *
+	 * @since 4.1.0
+	 * @access public
+	 *
+	 * @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 );
+
+		/**
+		 * Filter response of {@see WP_Customize_Section::active()}.
+		 *
+		 * @since 4.1.0
+		 *
+		 * @param bool                 $active  Whether the Customizer section is active.
+		 * @param WP_Customize_Section $section {@see WP_Customize_Section} instance.
+		 */
+		$active = apply_filters( 'customize_section_active', $active, $section );
+
+		return $active;
+	}
+
+	/**
+	 * Default callback used when invoking {@see 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
+	 * @access public
+	 *
+	 * @return bool 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( 'title', 'description', 'priority', 'panel', 'type' ) );
+		$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.
 	 */
-	public final function check_capabilities() {
-		if ( $this->capability && ! call_user_func_array( 'current_user_can', (array) $this->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 ) )
+		if ( $this->theme_supports && ! call_user_func_array( 'current_theme_supports', (array) $this->theme_supports ) ) {
 			return false;
+		}
 
 		return true;
 	}
 
 	/**
+	 * Get the section's content template 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();
+		$template = trim( ob_get_contents() );
+		ob_end_clean();
+		return $template;
+	}
+
+	/**
 	 * Check capabilities and render the section.
 	 *
 	 * @since 3.4.0
 	 */
-	public final function maybe_render() {
-		if ( ! $this->check_capabilities() )
+	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 );
-		do_action( 'customize_render_section_' . $this->id );
+		/**
+		 * Fires before rendering a specific Customizer section.
+		 *
+		 * The dynamic portion of the hook name, `$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.
+	 * Render the section, and the controls that have been added to it.
 	 *
 	 * @since 3.4.0
 	 */
 	protected function render() {
+		$classes = 'accordion-section control-section control-section-' . $this->type;
 		?>
-		<li id="accordion-section-<?php echo esc_attr( $this->id ); ?>" class="control-section accordion-section">
-			<h3 class="accordion-section-title" tabindex="0"><?php echo esc_html( $this->title ); ?></h3>
+		<li id="accordion-section-<?php echo esc_attr( $this->id ); ?>" class="<?php echo esc_attr( $classes ); ?>">
+			<h3 class="accordion-section-title" tabindex="0">
+				<?php echo esc_html( $this->title ); ?>
+				<span class="screen-reader-text"><?php _e( 'Press return or enter to expand' ); ?></span>
+			</h3>
 			<ul class="accordion-section-content">
 				<?php if ( ! empty( $this->description ) ) : ?>
-				<li><p class="description"><?php echo $this->description; ?></p></li>
+					<li class="customize-section-description-container">
+						<p class="description customize-section-description"><?php echo $this->description; ?></p>
+					</li>
 				<?php endif; ?>
-				<?php
-				foreach ( $this->controls as $control )
-					$control->maybe_render();
-				?>
 			</ul>
 		</li>
 		<?php
 	}
 }
+
+/**
+ * Customize Themes Section class.
+ *
+ * A UI container for theme controls, which behaves like a backwards Panel.
+ *
+ * @since 4.2.0
+ *
+ * @see WP_Customize_Section
+ */
+class WP_Customize_Themes_Section extends WP_Customize_Section {
+
+	/**
+	 * Customize section type.
+	 *
+	 * @since 4.2.0
+	 * @access public
+	 * @var string
+	 */
+	public $type = 'themes';
+
+	/**
+	 * Render the themes section, which behaves like a panel.
+	 *
+	 * @since 4.2.0
+	 * @access protected
+	 */
+	protected function render() {
+		$classes = 'accordion-section control-section control-section-' . $this->type;
+		?>
+		<li id="accordion-section-<?php echo esc_attr( $this->id ); ?>" class="<?php echo esc_attr( $classes ); ?>">
+			<h3 class="accordion-section-title">
+				<?php
+				if ( $this->manager->is_theme_active() ) {
+					/* translators: %s: theme name */
+					printf( __( '<span>Active theme</span> %s' ), $this->title );
+				} else {
+					/* translators: %s: theme name */
+					printf( __( '<span>Previewing theme</span> %s' ), $this->title );
+				}
+				?>
+
+				<button type="button" class="button change-theme"><?php _ex( 'Change', 'theme' ); ?></button>
+			</h3>
+			<div class="customize-themes-panel control-panel-content themes-php">
+				<h2>
+					<?php _e( 'Themes' ); ?>
+					<span class="title-count theme-count"><?php echo count( $this->controls ) + 1 /* Active theme */; ?></span>
+				</h2>
+
+				<h3 class="accordion-section-title customize-section-title">
+					<?php
+					if ( $this->manager->is_theme_active() ) {
+						/* translators: %s: theme name */
+						printf( __( '<span>Active theme</span> %s' ), $this->title );
+					} else {
+						/* translators: %s: theme name */
+						printf( __( '<span>Previewing theme</span> %s' ), $this->title );
+					}
+					?>
+					<button type="button" class="button customize-theme"><?php _e( 'Customize' ); ?></button>
+				</h3>
+
+				<div class="theme-overlay" tabindex="0" role="dialog" aria-label="<?php esc_attr_e( 'Theme Details' ); ?>"></div>
+
+				<div id="customize-container"></div>
+				<?php if ( count( $this->controls ) > 4 ) : ?>
+					<p><label for="themes-filter">
+						<span class="screen-reader-text"><?php _e( 'Search installed themes...' ); ?></span>
+						<input type="text" id="themes-filter" placeholder="<?php esc_attr_e( 'Search installed themes...' ); ?>" />
+					</label></p>
+				<?php endif; ?>
+				<div class="theme-browser rendered">
+					<ul class="themes accordion-section-content">
+					</ul>
+				</div>
+			</div>
+		</li>
+<?php }
+}
+
+/**
+ * Customizer section representing widget area (sidebar).
+ *
+ * @since 4.1.0
+ *
+ * @see WP_Customize_Section
+ */
+class WP_Customize_Sidebar_Section extends WP_Customize_Section {
+
+	/**
+	 * Type of this section.
+	 *
+	 * @since 4.1.0
+	 * @access public
+	 * @var string
+	 */
+	public $type = 'sidebar';
+
+	/**
+	 * Unique identifier.
+	 *
+	 * @since 4.1.0
+	 * @access public
+	 * @var string
+	 */
+	public $sidebar_id;
+
+	/**
+	 * 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() {
+		$json = parent::json();
+		$json['sidebarId'] = $this->sidebar_id;
+		return $json;
+	}
+
+	/**
+	 * Whether the current sidebar is rendered on the page.
+	 *
+	 * @since 4.1.0
+	 * @access public
+	 *
+	 * @return bool Whether sidebar is rendered.
+	 */
+	public function active_callback() {
+		return $this->manager->widgets->is_sidebar_rendered( $this->sidebar_id );
+	}
+}