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<?php |
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namespace GV; |
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/** If this file is called directly, abort. */ |
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if ( ! defined( 'GRAVITYVIEW_DIR' ) ) { |
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die(); |
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} |
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/** |
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* The \GV\Widget class. |
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* |
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* An interface that most GravityView widgets would want to adhere to and inherit from. |
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*/ |
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abstract class Widget { |
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/** |
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* Widget admin label |
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* @var string |
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*/ |
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protected $widget_label = ''; |
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/** |
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* Widget description, shown on the "+ Add Widget" picker |
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* @var string |
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*/ |
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protected $widget_description = ''; |
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/** |
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* Widget details, shown in the widget lightbox |
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* @since 1.8 |
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* @var string |
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*/ |
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protected $widget_subtitle = ''; |
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/** |
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* Widget admin ID |
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* @var string |
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*/ |
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protected $widget_id = ''; |
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/** |
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* Default configuration for header and footer |
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* @var array |
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*/ |
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protected $defaults = array(); |
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/** |
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* Widget admin advanced settings |
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* @var array |
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*/ |
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protected $settings = array(); |
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/** |
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* Allow class to automatically add widget_text filter for you in shortcode |
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* @var string |
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*/ |
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protected $shortcode_name; |
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/** |
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* Hold the widget options. |
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* @var array() |
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*/ |
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private $widget_options = array(); |
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/** |
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* The position of the widget. |
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* @api |
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* @since 2.0 |
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* @var string |
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*/ |
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public $position = ''; |
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/** |
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* A unique ID for this widget. |
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* @api |
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* @since 2.0 |
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* @var string |
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*/ |
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public $UID = ''; |
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/** |
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* The actual configuration for this widget instance. |
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* |
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* @api |
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* @since 2.0 |
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* @var \GV\Settings |
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*/ |
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public $configuration; |
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/** |
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* Constructor. |
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* |
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* @param string $label The Widget label as shown in the admin. |
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* @param string $id The Widget ID, make this something unique. |
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* @param array $defaults Default footer/header Widget configuration. |
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* @param array $settings Advanced Widget settings. |
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* |
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* @return \GV\Widget |
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*/ |
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public function __construct( $label, $id, $defaults = array(), $settings = array() ) { |
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/** |
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* The shortcode name is set to the lowercase name of the widget class, unless overridden by the class specifying a different value for $shortcode_name |
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* @var string |
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*/ |
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$this->shortcode_name = empty( $this->shortcode_name ) ? strtolower( get_called_class() ) : $this->shortcode_name; |
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if ( $id ) { |
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$this->widget_id = $id; |
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} |
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$this->widget_label = $label; |
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$this->defaults = array_merge( array( 'header' => 0, 'footer' => 0 ), $defaults ); |
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// Make sure every widget has a title, even if empty |
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$this->settings = wp_parse_args( $settings, $this->get_default_settings() ); |
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// Hook once per unique ID |
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if ( $this->is_registered() ) { |
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return; |
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} |
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// widget options |
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add_filter( 'gravityview_template_widget_options', array( $this, 'assign_widget_options' ), 10, 3 ); |
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// frontend logic |
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add_action( sprintf( 'gravityview/widgets/%s/render', $this->get_widget_id() ), array( $this, 'render_frontend' ), 10, 3 ); |
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// register shortcodes |
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add_action( 'wp', array( $this, 'add_shortcode' ) ); |
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// Use shortcodes in text widgets. |
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add_filter( 'widget_text', array( $this, 'maybe_do_shortcode' ) ); |
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// register widgets to be listed in the View Configuration |
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// Important: this has to be the last filter/action added in the constructor. |
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add_filter( 'gravityview/widgets/register', array( $this, 'register_widget' ) ); |
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} |
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/** |
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* Define general widget settings |
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* @since 1.5.4 |
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* @return array $settings Default settings |
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*/ |
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protected function get_default_settings() { |
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$settings = array(); |
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/** |
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* @filter `gravityview/widget/enable_custom_class` Enable custom CSS class settings for widgets |
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* @param boolean $enable_custom_class False by default. Return true if you want to enable. |
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* @param \GV\Widget $this Current instance of \GV\Widget. |
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*/ |
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$enable_custom_class = apply_filters( 'gravityview/widget/enable_custom_class', false, $this ); |
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if ( $enable_custom_class ) { |
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$settings['custom_class'] = array( |
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'type' => 'text', |
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'label' => __( 'Custom CSS Class:', 'gravityview' ), |
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'desc' => __( 'This class will be added to the widget container', 'gravityview' ), |
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'value' => '', |
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'merge_tags' => true, |
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); |
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} |
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return $settings; |
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} |
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/** |
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* Get the Widget ID. |
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* |
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* @return string The Widget ID. |
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*/ |
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public function get_widget_id() { |
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return $this->widget_id; |
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} |
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/** |
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* Get the widget settings |
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* |
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* @return array|null Settings array; NULL if not set for some reason. |
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*/ |
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public function get_settings() { |
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return empty( $this->settings ) ? null : $this->settings; |
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} |
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/** |
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* Get a setting by the setting key. |
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* |
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* @param string $key Key for the setting |
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* |
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* @todo Use the \GV\Settings class later. For now subclasses may still expect and array instead. |
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* |
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* @return mixed|null Value of the setting; NULL if not set |
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*/ |
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public function get_setting( $key ) { |
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return Utils::get( $this->settings, $key, null ); |
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} |
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/** |
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* Default widget areas. |
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* |
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* Usually overridden by the selected template. |
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* |
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* @return array The default areas where widgets can be rendered. |
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*/ |
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public static function get_default_widget_areas() { |
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$default_areas = array( |
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array( '1-1' => array( array( 'areaid' => 'top', 'title' => __( 'Top', 'gravityview' ) , 'subtitle' => '' ) ) ), |
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array( '1-2' => array( array( 'areaid' => 'left', 'title' => __( 'Left', 'gravityview' ) , 'subtitle' => '' ) ), '2-2' => array( array( 'areaid' => 'right', 'title' => __( 'Right', 'gravityview' ) , 'subtitle' => '' ) ) ), |
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); |
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/** |
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* @filter `gravityview_widget_active_areas` Array of zones available for widgets to be dropped into |
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* @deprecated 2.0: Use gravityview/widget/active_areas instead |
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* @param array $default_areas Definition for default widget areas |
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*/ |
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$default_areas = apply_filters( 'gravityview_widget_active_areas', $default_areas ); |
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/** |
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* @filter `gravityview/widget/active_areas` Array of zones available for widgets to be dropped into |
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* @since 2.0 |
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* @param array $default_areas Definition for default widget areas |
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*/ |
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return apply_filters( 'gravityview/widget/active_areas', $default_areas ); |
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} |
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/** |
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* Register widget to become available in admin. And for lookup. |
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* |
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* @param array $widgets Usually just empty. Used to gather them all up. |
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* |
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* @return array $widgets |
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*/ |
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public function register_widget( $widgets ) { |
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if ( ! is_array( $widgets ) ) { |
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$widgets = array(); |
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} |
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$widgets[ $this->get_widget_id() ] = array( |
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'label' => $this->widget_label , |
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'description' => $this->widget_description, |
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'subtitle' => $this->widget_subtitle, |
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'class' => get_called_class(), |
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); |
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return $widgets; |
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} |
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/** |
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* Assign template specific widget options |
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* |
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* @access protected |
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* |
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* @param array $options (default: array()) |
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* @param string $template (default: '') |
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* |
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* @return array |
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*/ |
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public function assign_widget_options( $options = array(), $template = '', $widget = '' ) { |
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if ( $this->get_widget_id() === $widget ) { |
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if( $settings = $this->get_settings() ) { |
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$options = array_merge( $options, $settings ); |
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} |
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} |
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return $options; |
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} |
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/** |
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* Do shortcode if the Widget's shortcode exists. |
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* |
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* @param string $text Widget text to check |
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* @param null|\WP_Widget Empty if not called by WP_Widget, or a WP_Widget instance |
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* |
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* @return string Widget text |
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*/ |
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public function maybe_do_shortcode( $text, $widget = null ) { |
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if ( ! empty( $this->shortcode_name ) && has_shortcode( $text, $this->shortcode_name ) ) { |
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return do_shortcode( $text ); |
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} |
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return $text; |
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} |
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/** |
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* Add $this->shortcode_name shortcode to output self::render_frontend() |
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* |
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* @return void |
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*/ |
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public function add_shortcode() { |
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if ( empty( $this->shortcode_name ) ) { |
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return; |
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} |
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if ( ! gravityview()->plugin->is_compatible() ) { |
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return; |
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} |
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if ( gravityview()->request->is_admin() ) { |
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return; |
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} |
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// If the widget shouldn't output on single entries, don't show it |
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if ( empty( $this->show_on_single ) && gravityview()->request->is_entry() ) { |
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gravityview()->log->debug( 'Skipping; set to not run on single entry.' ); |
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add_shortcode( $this->shortcode_name, '__return_null' ); |
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return; |
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} |
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global $post; |
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if ( ! is_object( $post ) || empty( $post->post_content ) || ! Shortcode::parse( $post->post_content ) ) { |
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gravityview()->log->debug( 'No shortcode present; not adding render_frontend shortcode.' ); |
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add_shortcode( $this->shortcode_name, '__return_null' ); |
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return; |
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} |
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add_shortcode( $this->shortcode_name, array( $this, 'render_shortcode') ); |
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} |
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/** |
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* Frontend logic. |
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* |
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* Override in child class. |
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* |
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* @param array $widget_args The Widget shortcode args. |
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* @param string $content The content. |
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* @param string|\GV\Template_Context $context The context, if available. |
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* |
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* @return void |
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*/ |
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public function render_frontend( $widget_args, $content = '', $context = '' ) { |
329
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} |
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/** |
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* General validations when rendering the widget |
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* |
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* Always call this from your `render_frontend()` override! |
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* |
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* @return boolean True: render frontend; False: don't render frontend |
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*/ |
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4 |
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public function pre_render_frontend() { |
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/** |
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* Assume shown regardless of hide_until_search setting. |
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*/ |
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$whitelist = array( |
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4 |
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'custom_content', |
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); |
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/** |
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* @filter `gravityview/widget/hide_until_searched/whitelist` Some widgets have got to stay shown. |
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* @param[in,out] string[] $whitelist The widget IDs that have to be shown by default. |
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*/ |
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4 |
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$whitelist = apply_filters( 'gravityview/widget/hide_until_searched/whitelist', $whitelist ); |
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4 |
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if ( ( $view = gravityview()->views->get() ) && ! in_array( $this->get_widget_id(), $whitelist ) ) { |
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4 |
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$hide_until_searched = $view->settings->get( 'hide_until_searched' ); |
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} else { |
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2 |
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$hide_until_searched = false; |
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} |
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/** |
359
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* @filter `gravityview/widget/hide_until_searched` Modify whether to hide content until search |
360
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* @param boolean $hide_until_searched Hide until search? |
361
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* @param \GV\Widget $this Widget instance |
362
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*/ |
363
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4 |
|
$hide_until_searched = apply_filters( 'gravityview/widget/hide_until_searched', $hide_until_searched, $this ); |
364
|
|
|
|
365
|
4 |
|
if ( $hide_until_searched && ! gravityview()->request->is_search() ) { |
366
|
1 |
|
gravityview()->log->debug( 'Hide View data until search is performed' ); |
367
|
1 |
|
return false; |
368
|
|
|
} |
369
|
|
|
|
370
|
4 |
|
return true; |
371
|
|
|
} |
372
|
|
|
|
373
|
|
|
/** |
374
|
|
|
* Shortcode. |
375
|
|
|
* |
376
|
|
|
* @param array $atts The Widget shortcode args. |
377
|
|
|
* @param string $content The content. |
378
|
|
|
* @param string|\GV\Template_Context $context The context, if available. |
379
|
|
|
* |
380
|
|
|
* @return string Whatever the widget echoed. |
381
|
|
|
*/ |
382
|
1 |
|
public function render_shortcode( $atts, $content = '', $context = '' ) { |
383
|
1 |
|
ob_start(); |
384
|
1 |
|
$this->render_frontend( $atts, $content, $context ); |
385
|
1 |
|
return ob_get_clean(); |
386
|
|
|
} |
387
|
|
|
|
388
|
|
|
/** |
389
|
|
|
* Create the needed widget from a configuration array. |
390
|
|
|
* |
391
|
|
|
* @param array $configuration The configuration array. |
392
|
|
|
* @see \GV\Widget::as_configuration() |
393
|
|
|
* @internal |
394
|
|
|
* @since 2.0 |
395
|
|
|
* |
396
|
|
|
* @return \GV\Widget|null The widget implementation from configuration or none. |
397
|
|
|
*/ |
398
|
39 |
|
public static function from_configuration( $configuration ) { |
399
|
39 |
|
$registered_widgets = self::registered(); |
400
|
|
|
|
401
|
39 |
|
if ( ! $id = Utils::get( $configuration, 'id' ) ) { |
402
|
|
|
return null; |
403
|
|
|
} |
404
|
|
|
|
405
|
39 |
|
if ( ! $widget = Utils::get( $registered_widgets, $id ) ) { |
406
|
|
|
return null; |
407
|
|
|
} |
408
|
|
|
|
409
|
39 |
|
if ( ! class_exists( $class = Utils::get( $widget, 'class' ) ) ) { |
410
|
|
|
return null; |
411
|
|
|
} |
412
|
|
|
|
413
|
39 |
|
$w = new $class( Utils::get( $widget, 'label' ), $id ); |
414
|
39 |
|
$w->configuration = new Settings( $configuration ); |
415
|
|
|
|
416
|
39 |
|
return $w; |
417
|
|
|
} |
418
|
|
|
|
419
|
|
|
/** |
420
|
|
|
* Return an array of the old format. |
421
|
|
|
* |
422
|
|
|
* 'id' => string |
423
|
|
|
* + whatever else specific fields may have |
424
|
|
|
* |
425
|
|
|
* @internal |
426
|
|
|
* @since 2.0 |
427
|
|
|
* |
428
|
|
|
* @return array |
429
|
|
|
*/ |
430
|
6 |
|
public function as_configuration() { |
431
|
6 |
|
return array_merge( array( |
432
|
6 |
|
'id' => $this->get_widget_id(), |
433
|
6 |
|
), $this->configuration->all() ); |
434
|
|
|
} |
435
|
|
|
|
436
|
|
|
/** |
437
|
|
|
* Return all registered widgets. |
438
|
|
|
* |
439
|
|
|
* @api |
440
|
|
|
* @since 2.0 |
441
|
|
|
* |
442
|
|
|
* @return array |
443
|
|
|
*/ |
444
|
40 |
|
public static function registered() { |
445
|
|
|
/** |
446
|
|
|
* @filter `gravityview_register_directory_widgets` Get the list of registered widgets. Each item is used to instantiate a GravityView_Admin_View_Widget object |
447
|
|
|
* @deprecated Use `gravityview/widgets/register` |
448
|
|
|
* @param array $registered_widgets Empty array |
449
|
|
|
*/ |
450
|
40 |
|
$registered_widgets = apply_filters( 'gravityview_register_directory_widgets', array() ); |
451
|
|
|
|
452
|
|
|
/** |
453
|
|
|
* @filter `gravityview/widgets/register` Each item is used to instantiate a GravityView_Admin_View_Widget object |
454
|
|
|
* @param array $registered_widgets Empty array |
455
|
|
|
*/ |
456
|
40 |
|
return apply_filters( 'gravityview/widgets/register', $registered_widgets ); |
457
|
|
|
} |
458
|
|
|
|
459
|
|
|
/** |
460
|
|
|
* Whether this Widget's been registered already or not. |
461
|
|
|
* |
462
|
|
|
* @api |
463
|
|
|
* @since 2.0 |
464
|
|
|
* |
465
|
|
|
* @return bool |
466
|
|
|
*/ |
467
|
40 |
|
public function is_registered() { |
468
|
40 |
|
if ( ! $widget_id = $this->get_widget_id() ) { |
469
|
|
|
gravityview()->log->warning( 'Widget ID not set before calling Widget::is_registered', array( 'data' => $this ) ); |
470
|
|
|
return false; |
471
|
|
|
} |
472
|
40 |
|
return in_array( $widget_id, array_keys( self::registered() ), true ); |
473
|
|
|
} |
474
|
|
|
} |
475
|
|
|
|
Adding a
@return
annotation to a constructor is not recommended, since a constructor does not have a meaningful return value.Please refer to the PHP core documentation on constructors.