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31d4d81039
The last time a new widget was introduced, Vuvuzelas were a thing, Angry Birds started taking over phones, and WordPress stopped shipping with Kubrick. Seven years and 17 releases without new widgets have been enough, time to spice up your sidebar! Props westonruter, melchoyce, obenland, timmydcrawford, adamsilverstein, gonom9, wonderboymusic, Fab1en, DrewAPicture, sirbrillig, joen, matias, samikeijonen, afercia, celloexpressions, designsimply, michelleweber, ranh, kjellr, karmatosed. Fixes #32417, #39993, #39994, #39995. Built from https://develop.svn.wordpress.org/trunk@40640 git-svn-id: http://core.svn.wordpress.org/trunk@40501 1a063a9b-81f0-0310-95a4-ce76da25c4cd
1484 lines
47 KiB
PHP
1484 lines
47 KiB
PHP
<?php
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/**
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* Core Widgets API
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*
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* This API is used for creating dynamic sidebar without hardcoding functionality into
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* themes
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*
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* Includes both internal WordPress routines and theme-use routines.
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*
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* This functionality was found in a plugin before the WordPress 2.2 release, which
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* included it in the core from that point on.
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*
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* @link https://codex.wordpress.org/Plugins/WordPress_Widgets WordPress Widgets
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* @link https://codex.wordpress.org/Plugins/WordPress_Widgets_Api Widgets API
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*
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* @package WordPress
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* @subpackage Widgets
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* @since 2.2.0
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*/
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//
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// Global Variables
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//
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/** @ignore */
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global $wp_registered_sidebars, $wp_registered_widgets, $wp_registered_widget_controls, $wp_registered_widget_updates;
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/**
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* Stores the sidebars, since many themes can have more than one.
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*
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* @global array $wp_registered_sidebars
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* @since 2.2.0
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*/
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$wp_registered_sidebars = array();
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/**
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* Stores the registered widgets.
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*
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* @global array $wp_registered_widgets
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* @since 2.2.0
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*/
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$wp_registered_widgets = array();
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/**
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* Stores the registered widget control (options).
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*
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* @global array $wp_registered_widget_controls
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* @since 2.2.0
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*/
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$wp_registered_widget_controls = array();
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/**
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* @global array $wp_registered_widget_updates
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*/
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$wp_registered_widget_updates = array();
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/**
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* Private
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*
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* @global array $_wp_sidebars_widgets
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*/
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$_wp_sidebars_widgets = array();
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/**
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* Private
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*
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* @global array $_wp_deprecated_widgets_callbacks
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*/
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$GLOBALS['_wp_deprecated_widgets_callbacks'] = array(
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'wp_widget_pages',
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'wp_widget_pages_control',
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'wp_widget_calendar',
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'wp_widget_calendar_control',
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'wp_widget_archives',
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'wp_widget_archives_control',
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'wp_widget_links',
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'wp_widget_meta',
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'wp_widget_meta_control',
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'wp_widget_search',
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'wp_widget_recent_entries',
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'wp_widget_recent_entries_control',
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'wp_widget_tag_cloud',
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'wp_widget_tag_cloud_control',
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'wp_widget_categories',
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'wp_widget_categories_control',
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'wp_widget_text',
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'wp_widget_text_control',
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'wp_widget_rss',
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'wp_widget_rss_control',
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'wp_widget_recent_comments',
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'wp_widget_recent_comments_control'
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);
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//
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// Template tags & API functions
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//
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/**
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* Register a widget
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*
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* Registers a WP_Widget widget
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*
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* @since 2.8.0
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*
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* @see WP_Widget
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*
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* @global WP_Widget_Factory $wp_widget_factory
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*
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* @param string $widget_class The name of a class that extends WP_Widget
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*/
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function register_widget($widget_class) {
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global $wp_widget_factory;
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$wp_widget_factory->register($widget_class);
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}
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/**
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* Unregisters a widget.
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*
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* Unregisters a WP_Widget widget. Useful for un-registering default widgets.
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* Run within a function hooked to the {@see 'widgets_init'} action.
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*
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* @since 2.8.0
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*
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* @see WP_Widget
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*
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* @global WP_Widget_Factory $wp_widget_factory
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*
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* @param string $widget_class The name of a class that extends WP_Widget.
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*/
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function unregister_widget($widget_class) {
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global $wp_widget_factory;
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$wp_widget_factory->unregister($widget_class);
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}
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/**
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* Creates multiple sidebars.
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*
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* If you wanted to quickly create multiple sidebars for a theme or internally.
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* This function will allow you to do so. If you don't pass the 'name' and/or
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* 'id' in `$args`, then they will be built for you.
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*
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* @since 2.2.0
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*
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* @see register_sidebar() The second parameter is documented by register_sidebar() and is the same here.
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*
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* @global array $wp_registered_sidebars
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*
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* @param int $number Optional. Number of sidebars to create. Default 1.
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* @param array|string $args {
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* Optional. Array or string of arguments for building a sidebar.
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*
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* @type string $id The base string of the unique identifier for each sidebar. If provided, and multiple
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* sidebars are being defined, the id will have "-2" appended, and so on.
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* Default 'sidebar-' followed by the number the sidebar creation is currently at.
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* @type string $name The name or title for the sidebars displayed in the admin dashboard. If registering
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* more than one sidebar, include '%d' in the string as a placeholder for the uniquely
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* assigned number for each sidebar.
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* Default 'Sidebar' for the first sidebar, otherwise 'Sidebar %d'.
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* }
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*/
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function register_sidebars( $number = 1, $args = array() ) {
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global $wp_registered_sidebars;
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$number = (int) $number;
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if ( is_string($args) )
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parse_str($args, $args);
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for ( $i = 1; $i <= $number; $i++ ) {
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$_args = $args;
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if ( $number > 1 )
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$_args['name'] = isset($args['name']) ? sprintf($args['name'], $i) : sprintf(__('Sidebar %d'), $i);
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else
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$_args['name'] = isset($args['name']) ? $args['name'] : __('Sidebar');
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// Custom specified ID's are suffixed if they exist already.
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// Automatically generated sidebar names need to be suffixed regardless starting at -0
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if ( isset($args['id']) ) {
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$_args['id'] = $args['id'];
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$n = 2; // Start at -2 for conflicting custom ID's
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while ( is_registered_sidebar( $_args['id'] ) ) {
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$_args['id'] = $args['id'] . '-' . $n++;
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}
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} else {
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$n = count( $wp_registered_sidebars );
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do {
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$_args['id'] = 'sidebar-' . ++$n;
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} while ( is_registered_sidebar( $_args['id'] ) );
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}
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register_sidebar($_args);
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}
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}
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/**
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* Builds the definition for a single sidebar and returns the ID.
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*
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* Accepts either a string or an array and then parses that against a set
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* of default arguments for the new sidebar. WordPress will automatically
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* generate a sidebar ID and name based on the current number of registered
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* sidebars if those arguments are not included.
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*
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* When allowing for automatic generation of the name and ID parameters, keep
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* in mind that the incrementor for your sidebar can change over time depending
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* on what other plugins and themes are installed.
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*
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* If theme support for 'widgets' has not yet been added when this function is
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* called, it will be automatically enabled through the use of add_theme_support()
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*
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* @since 2.2.0
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*
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* @global array $wp_registered_sidebars Stores the new sidebar in this array by sidebar ID.
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*
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* @param array|string $args {
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* Optional. Array or string of arguments for the sidebar being registered.
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*
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* @type string $name The name or title of the sidebar displayed in the Widgets
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* interface. Default 'Sidebar $instance'.
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* @type string $id The unique identifier by which the sidebar will be called.
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* Default 'sidebar-$instance'.
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* @type string $description Description of the sidebar, displayed in the Widgets interface.
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* Default empty string.
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* @type string $class Extra CSS class to assign to the sidebar in the Widgets interface.
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* Default empty.
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* @type string $before_widget HTML content to prepend to each widget's HTML output when
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* assigned to this sidebar. Default is an opening list item element.
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* @type string $after_widget HTML content to append to each widget's HTML output when
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* assigned to this sidebar. Default is a closing list item element.
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* @type string $before_title HTML content to prepend to the sidebar title when displayed.
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* Default is an opening h2 element.
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* @type string $after_title HTML content to append to the sidebar title when displayed.
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* Default is a closing h2 element.
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* }
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* @return string Sidebar ID added to $wp_registered_sidebars global.
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*/
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function register_sidebar($args = array()) {
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global $wp_registered_sidebars;
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$i = count($wp_registered_sidebars) + 1;
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$id_is_empty = empty( $args['id'] );
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$defaults = array(
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'name' => sprintf(__('Sidebar %d'), $i ),
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'id' => "sidebar-$i",
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'description' => '',
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'class' => '',
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'before_widget' => '<li id="%1$s" class="widget %2$s">',
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'after_widget' => "</li>\n",
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'before_title' => '<h2 class="widgettitle">',
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'after_title' => "</h2>\n",
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);
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$sidebar = wp_parse_args( $args, $defaults );
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if ( $id_is_empty ) {
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/* translators: 1: the id argument, 2: sidebar name, 3: recommended id value */
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_doing_it_wrong( __FUNCTION__, sprintf( __( 'No %1$s was set in the arguments array for the "%2$s" sidebar. Defaulting to "%3$s". Manually set the %1$s to "%3$s" to silence this notice and keep existing sidebar content.' ), '<code>id</code>', $sidebar['name'], $sidebar['id'] ), '4.2.0' );
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}
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$wp_registered_sidebars[$sidebar['id']] = $sidebar;
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add_theme_support('widgets');
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/**
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* Fires once a sidebar has been registered.
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*
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* @since 3.0.0
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*
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* @param array $sidebar Parsed arguments for the registered sidebar.
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*/
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do_action( 'register_sidebar', $sidebar );
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return $sidebar['id'];
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}
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/**
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* Removes a sidebar from the list.
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*
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* @since 2.2.0
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*
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* @global array $wp_registered_sidebars Stores the new sidebar in this array by sidebar ID.
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*
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* @param string|int $sidebar_id The ID of the sidebar when it was registered.
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*/
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function unregister_sidebar( $sidebar_id ) {
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global $wp_registered_sidebars;
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unset( $wp_registered_sidebars[ $sidebar_id ] );
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}
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/**
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* Checks if a sidebar is registered.
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*
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* @since 4.4.0
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*
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* @global array $wp_registered_sidebars Registered sidebars.
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*
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* @param string|int $sidebar_id The ID of the sidebar when it was registered.
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* @return bool True if the sidebar is registered, false otherwise.
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*/
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function is_registered_sidebar( $sidebar_id ) {
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global $wp_registered_sidebars;
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return isset( $wp_registered_sidebars[ $sidebar_id ] );
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}
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/**
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* Register an instance of a widget.
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*
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* The default widget option is 'classname' that can be overridden.
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*
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* The function can also be used to un-register widgets when `$output_callback`
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* parameter is an empty string.
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*
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* @since 2.2.0
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*
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* @global array $wp_registered_widgets Uses stored registered widgets.
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* @global array $wp_register_widget_defaults Retrieves widget defaults.
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* @global array $wp_registered_widget_updates
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* @global array $_wp_deprecated_widgets_callbacks
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*
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* @param int|string $id Widget ID.
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* @param string $name Widget display title.
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* @param callable $output_callback Run when widget is called.
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* @param array $options {
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* Optional. An array of supplementary widget options for the instance.
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*
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* @type string $classname Class name for the widget's HTML container. Default is a shortened
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* version of the output callback name.
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* @type string $description Widget description for display in the widget administration
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* panel and/or theme.
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* }
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*/
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function wp_register_sidebar_widget( $id, $name, $output_callback, $options = array() ) {
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global $wp_registered_widgets, $wp_registered_widget_controls, $wp_registered_widget_updates, $_wp_deprecated_widgets_callbacks;
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$id = strtolower($id);
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if ( empty($output_callback) ) {
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unset($wp_registered_widgets[$id]);
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return;
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}
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$id_base = _get_widget_id_base($id);
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if ( in_array($output_callback, $_wp_deprecated_widgets_callbacks, true) && !is_callable($output_callback) ) {
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unset( $wp_registered_widget_controls[ $id ] );
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unset( $wp_registered_widget_updates[ $id_base ] );
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return;
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}
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$defaults = array('classname' => $output_callback);
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$options = wp_parse_args($options, $defaults);
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$widget = array(
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'name' => $name,
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'id' => $id,
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'callback' => $output_callback,
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'params' => array_slice(func_get_args(), 4)
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);
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$widget = array_merge($widget, $options);
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if ( is_callable($output_callback) && ( !isset($wp_registered_widgets[$id]) || did_action( 'widgets_init' ) ) ) {
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/**
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* Fires once for each registered widget.
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*
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* @since 3.0.0
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*
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* @param array $widget An array of default widget arguments.
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*/
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do_action( 'wp_register_sidebar_widget', $widget );
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$wp_registered_widgets[$id] = $widget;
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}
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}
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/**
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* Retrieve description for widget.
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*
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* When registering widgets, the options can also include 'description' that
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* describes the widget for display on the widget administration panel or
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* in the theme.
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*
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* @since 2.5.0
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*
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* @global array $wp_registered_widgets
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*
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* @param int|string $id Widget ID.
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* @return string|void Widget description, if available.
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*/
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function wp_widget_description( $id ) {
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if ( !is_scalar($id) )
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return;
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global $wp_registered_widgets;
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if ( isset($wp_registered_widgets[$id]['description']) )
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return esc_html( $wp_registered_widgets[$id]['description'] );
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}
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/**
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* Retrieve description for a sidebar.
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*
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* When registering sidebars a 'description' parameter can be included that
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* describes the sidebar for display on the widget administration panel.
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*
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* @since 2.9.0
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*
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* @global array $wp_registered_sidebars
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*
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* @param string $id sidebar ID.
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* @return string|void Sidebar description, if available.
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*/
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function wp_sidebar_description( $id ) {
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if ( !is_scalar($id) )
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return;
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global $wp_registered_sidebars;
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if ( isset($wp_registered_sidebars[$id]['description']) )
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return esc_html( $wp_registered_sidebars[$id]['description'] );
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}
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/**
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* Remove widget from sidebar.
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*
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* @since 2.2.0
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*
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* @param int|string $id Widget ID.
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*/
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function wp_unregister_sidebar_widget($id) {
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/**
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* Fires just before a widget is removed from a sidebar.
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*
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* @since 3.0.0
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*
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* @param int $id The widget ID.
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*/
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do_action( 'wp_unregister_sidebar_widget', $id );
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wp_register_sidebar_widget($id, '', '');
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wp_unregister_widget_control($id);
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}
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/**
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* Registers widget control callback for customizing options.
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*
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* @since 2.2.0
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*
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* @todo `$params` parameter?
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*
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* @global array $wp_registered_widget_controls
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* @global array $wp_registered_widget_updates
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* @global array $wp_registered_widgets
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* @global array $_wp_deprecated_widgets_callbacks
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|
*
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* @param int|string $id Sidebar ID.
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* @param string $name Sidebar display name.
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* @param callable $control_callback Run when sidebar is displayed.
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* @param array $options {
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* Optional. Array or string of control options. Default empty array.
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*
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* @type int $height Never used. Default 200.
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* @type int $width Width of the fully expanded control form (but try hard to use the default width).
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* Default 250.
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* @type int|string $id_base Required for multi-widgets, i.e widgets that allow multiple instances such as the
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* text widget. The widget id will end up looking like `{$id_base}-{$unique_number}`.
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* }
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*/
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function wp_register_widget_control( $id, $name, $control_callback, $options = array() ) {
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global $wp_registered_widget_controls, $wp_registered_widget_updates, $wp_registered_widgets, $_wp_deprecated_widgets_callbacks;
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$id = strtolower($id);
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$id_base = _get_widget_id_base($id);
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if ( empty($control_callback) ) {
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unset($wp_registered_widget_controls[$id]);
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unset($wp_registered_widget_updates[$id_base]);
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return;
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}
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if ( in_array($control_callback, $_wp_deprecated_widgets_callbacks, true) && !is_callable($control_callback) ) {
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unset( $wp_registered_widgets[ $id ] );
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return;
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}
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|
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if ( isset($wp_registered_widget_controls[$id]) && !did_action( 'widgets_init' ) )
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return;
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$defaults = array('width' => 250, 'height' => 200 ); // height is never used
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$options = wp_parse_args($options, $defaults);
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$options['width'] = (int) $options['width'];
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$options['height'] = (int) $options['height'];
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$widget = array(
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'name' => $name,
|
|
'id' => $id,
|
|
'callback' => $control_callback,
|
|
'params' => array_slice(func_get_args(), 4)
|
|
);
|
|
$widget = array_merge($widget, $options);
|
|
|
|
$wp_registered_widget_controls[$id] = $widget;
|
|
|
|
if ( isset($wp_registered_widget_updates[$id_base]) )
|
|
return;
|
|
|
|
if ( isset($widget['params'][0]['number']) )
|
|
$widget['params'][0]['number'] = -1;
|
|
|
|
unset($widget['width'], $widget['height'], $widget['name'], $widget['id']);
|
|
$wp_registered_widget_updates[$id_base] = $widget;
|
|
}
|
|
|
|
/**
|
|
* Registers the update callback for a widget.
|
|
*
|
|
* @since 2.8.0
|
|
*
|
|
* @global array $wp_registered_widget_updates
|
|
*
|
|
* @param string $id_base The base ID of a widget created by extending WP_Widget.
|
|
* @param callable $update_callback Update callback method for the widget.
|
|
* @param array $options Optional. Widget control options. See wp_register_widget_control().
|
|
* Default empty array.
|
|
*/
|
|
function _register_widget_update_callback( $id_base, $update_callback, $options = array() ) {
|
|
global $wp_registered_widget_updates;
|
|
|
|
if ( isset($wp_registered_widget_updates[$id_base]) ) {
|
|
if ( empty($update_callback) )
|
|
unset($wp_registered_widget_updates[$id_base]);
|
|
return;
|
|
}
|
|
|
|
$widget = array(
|
|
'callback' => $update_callback,
|
|
'params' => array_slice(func_get_args(), 3)
|
|
);
|
|
|
|
$widget = array_merge($widget, $options);
|
|
$wp_registered_widget_updates[$id_base] = $widget;
|
|
}
|
|
|
|
/**
|
|
* Registers the form callback for a widget.
|
|
*
|
|
* @since 2.8.0
|
|
*
|
|
* @global array $wp_registered_widget_controls
|
|
*
|
|
* @param int|string $id Widget ID.
|
|
* @param string $name Name attribute for the widget.
|
|
* @param callable $form_callback Form callback.
|
|
* @param array $options Optional. Widget control options. See wp_register_widget_control().
|
|
* Default empty array.
|
|
*/
|
|
function _register_widget_form_callback($id, $name, $form_callback, $options = array()) {
|
|
global $wp_registered_widget_controls;
|
|
|
|
$id = strtolower($id);
|
|
|
|
if ( empty($form_callback) ) {
|
|
unset($wp_registered_widget_controls[$id]);
|
|
return;
|
|
}
|
|
|
|
if ( isset($wp_registered_widget_controls[$id]) && !did_action( 'widgets_init' ) )
|
|
return;
|
|
|
|
$defaults = array('width' => 250, 'height' => 200 );
|
|
$options = wp_parse_args($options, $defaults);
|
|
$options['width'] = (int) $options['width'];
|
|
$options['height'] = (int) $options['height'];
|
|
|
|
$widget = array(
|
|
'name' => $name,
|
|
'id' => $id,
|
|
'callback' => $form_callback,
|
|
'params' => array_slice(func_get_args(), 4)
|
|
);
|
|
$widget = array_merge($widget, $options);
|
|
|
|
$wp_registered_widget_controls[$id] = $widget;
|
|
}
|
|
|
|
/**
|
|
* Remove control callback for widget.
|
|
*
|
|
* @since 2.2.0
|
|
*
|
|
* @param int|string $id Widget ID.
|
|
*/
|
|
function wp_unregister_widget_control($id) {
|
|
wp_register_widget_control( $id, '', '' );
|
|
}
|
|
|
|
/**
|
|
* Display dynamic sidebar.
|
|
*
|
|
* By default this displays the default sidebar or 'sidebar-1'. If your theme specifies the 'id' or
|
|
* 'name' parameter for its registered sidebars you can pass an id or name as the $index parameter.
|
|
* Otherwise, you can pass in a numerical index to display the sidebar at that index.
|
|
*
|
|
* @since 2.2.0
|
|
*
|
|
* @global array $wp_registered_sidebars
|
|
* @global array $wp_registered_widgets
|
|
*
|
|
* @param int|string $index Optional, default is 1. Index, name or ID of dynamic sidebar.
|
|
* @return bool True, if widget sidebar was found and called. False if not found or not called.
|
|
*/
|
|
function dynamic_sidebar( $index = 1 ) {
|
|
global $wp_registered_sidebars, $wp_registered_widgets;
|
|
|
|
if ( is_int( $index ) ) {
|
|
$index = "sidebar-$index";
|
|
} else {
|
|
$index = sanitize_title( $index );
|
|
foreach ( (array) $wp_registered_sidebars as $key => $value ) {
|
|
if ( sanitize_title( $value['name'] ) == $index ) {
|
|
$index = $key;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
$sidebars_widgets = wp_get_sidebars_widgets();
|
|
if ( empty( $wp_registered_sidebars[ $index ] ) || empty( $sidebars_widgets[ $index ] ) || ! is_array( $sidebars_widgets[ $index ] ) ) {
|
|
/** This action is documented in wp-includes/widget.php */
|
|
do_action( 'dynamic_sidebar_before', $index, false );
|
|
/** This action is documented in wp-includes/widget.php */
|
|
do_action( 'dynamic_sidebar_after', $index, false );
|
|
/** This filter is documented in wp-includes/widget.php */
|
|
return apply_filters( 'dynamic_sidebar_has_widgets', false, $index );
|
|
}
|
|
|
|
/**
|
|
* Fires before widgets are rendered in a dynamic sidebar.
|
|
*
|
|
* Note: The action also fires for empty sidebars, and on both the front end
|
|
* and back end, including the Inactive Widgets sidebar on the Widgets screen.
|
|
*
|
|
* @since 3.9.0
|
|
*
|
|
* @param int|string $index Index, name, or ID of the dynamic sidebar.
|
|
* @param bool $has_widgets Whether the sidebar is populated with widgets.
|
|
* Default true.
|
|
*/
|
|
do_action( 'dynamic_sidebar_before', $index, true );
|
|
$sidebar = $wp_registered_sidebars[$index];
|
|
|
|
$did_one = false;
|
|
foreach ( (array) $sidebars_widgets[$index] as $id ) {
|
|
|
|
if ( !isset($wp_registered_widgets[$id]) ) continue;
|
|
|
|
$params = array_merge(
|
|
array( array_merge( $sidebar, array('widget_id' => $id, 'widget_name' => $wp_registered_widgets[$id]['name']) ) ),
|
|
(array) $wp_registered_widgets[$id]['params']
|
|
);
|
|
|
|
// Substitute HTML id and class attributes into before_widget
|
|
$classname_ = '';
|
|
foreach ( (array) $wp_registered_widgets[$id]['classname'] as $cn ) {
|
|
if ( is_string($cn) )
|
|
$classname_ .= '_' . $cn;
|
|
elseif ( is_object($cn) )
|
|
$classname_ .= '_' . get_class($cn);
|
|
}
|
|
$classname_ = ltrim($classname_, '_');
|
|
$params[0]['before_widget'] = sprintf($params[0]['before_widget'], $id, $classname_);
|
|
|
|
/**
|
|
* Filters the parameters passed to a widget's display callback.
|
|
*
|
|
* Note: The filter is evaluated on both the front end and back end,
|
|
* including for the Inactive Widgets sidebar on the Widgets screen.
|
|
*
|
|
* @since 2.5.0
|
|
*
|
|
* @see register_sidebar()
|
|
*
|
|
* @param array $params {
|
|
* @type array $args {
|
|
* An array of widget display arguments.
|
|
*
|
|
* @type string $name Name of the sidebar the widget is assigned to.
|
|
* @type string $id ID of the sidebar the widget is assigned to.
|
|
* @type string $description The sidebar description.
|
|
* @type string $class CSS class applied to the sidebar container.
|
|
* @type string $before_widget HTML markup to prepend to each widget in the sidebar.
|
|
* @type string $after_widget HTML markup to append to each widget in the sidebar.
|
|
* @type string $before_title HTML markup to prepend to the widget title when displayed.
|
|
* @type string $after_title HTML markup to append to the widget title when displayed.
|
|
* @type string $widget_id ID of the widget.
|
|
* @type string $widget_name Name of the widget.
|
|
* }
|
|
* @type array $widget_args {
|
|
* An array of multi-widget arguments.
|
|
*
|
|
* @type int $number Number increment used for multiples of the same widget.
|
|
* }
|
|
* }
|
|
*/
|
|
$params = apply_filters( 'dynamic_sidebar_params', $params );
|
|
|
|
$callback = $wp_registered_widgets[$id]['callback'];
|
|
|
|
/**
|
|
* Fires before a widget's display callback is called.
|
|
*
|
|
* Note: The action fires on both the front end and back end, including
|
|
* for widgets in the Inactive Widgets sidebar on the Widgets screen.
|
|
*
|
|
* The action is not fired for empty sidebars.
|
|
*
|
|
* @since 3.0.0
|
|
*
|
|
* @param array $widget_id {
|
|
* An associative array of widget arguments.
|
|
*
|
|
* @type string $name Name of the widget.
|
|
* @type string $id Widget ID.
|
|
* @type array|callable $callback When the hook is fired on the front end, $callback is an array
|
|
* containing the widget object. Fired on the back end, $callback
|
|
* is 'wp_widget_control', see $_callback.
|
|
* @type array $params An associative array of multi-widget arguments.
|
|
* @type string $classname CSS class applied to the widget container.
|
|
* @type string $description The widget description.
|
|
* @type array $_callback When the hook is fired on the back end, $_callback is populated
|
|
* with an array containing the widget object, see $callback.
|
|
* }
|
|
*/
|
|
do_action( 'dynamic_sidebar', $wp_registered_widgets[ $id ] );
|
|
|
|
if ( is_callable($callback) ) {
|
|
call_user_func_array($callback, $params);
|
|
$did_one = true;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Fires after widgets are rendered in a dynamic sidebar.
|
|
*
|
|
* Note: The action also fires for empty sidebars, and on both the front end
|
|
* and back end, including the Inactive Widgets sidebar on the Widgets screen.
|
|
*
|
|
* @since 3.9.0
|
|
*
|
|
* @param int|string $index Index, name, or ID of the dynamic sidebar.
|
|
* @param bool $has_widgets Whether the sidebar is populated with widgets.
|
|
* Default true.
|
|
*/
|
|
do_action( 'dynamic_sidebar_after', $index, true );
|
|
|
|
/**
|
|
* Filters whether a sidebar has widgets.
|
|
*
|
|
* Note: The filter is also evaluated for empty sidebars, and on both the front end
|
|
* and back end, including the Inactive Widgets sidebar on the Widgets screen.
|
|
*
|
|
* @since 3.9.0
|
|
*
|
|
* @param bool $did_one Whether at least one widget was rendered in the sidebar.
|
|
* Default false.
|
|
* @param int|string $index Index, name, or ID of the dynamic sidebar.
|
|
*/
|
|
return apply_filters( 'dynamic_sidebar_has_widgets', $did_one, $index );
|
|
}
|
|
|
|
/**
|
|
* Whether widget is displayed on the front end.
|
|
*
|
|
* Either $callback or $id_base can be used
|
|
* $id_base is the first argument when extending WP_Widget class
|
|
* Without the optional $widget_id parameter, returns the ID of the first sidebar
|
|
* in which the first instance of the widget with the given callback or $id_base is found.
|
|
* With the $widget_id parameter, returns the ID of the sidebar where
|
|
* the widget with that callback/$id_base AND that ID is found.
|
|
*
|
|
* NOTE: $widget_id and $id_base are the same for single widgets. To be effective
|
|
* this function has to run after widgets have initialized, at action {@see 'init'} or later.
|
|
*
|
|
* @since 2.2.0
|
|
*
|
|
* @global array $wp_registered_widgets
|
|
*
|
|
* @param string|false $callback Optional, Widget callback to check. Default false.
|
|
* @param int|false $widget_id Optional. Widget ID. Optional, but needed for checking. Default false.
|
|
* @param string|false $id_base Optional. The base ID of a widget created by extending WP_Widget. Default false.
|
|
* @param bool $skip_inactive Optional. Whether to check in 'wp_inactive_widgets'. Default true.
|
|
* @return string|false False if widget is not active or id of sidebar in which the widget is active.
|
|
*/
|
|
function is_active_widget( $callback = false, $widget_id = false, $id_base = false, $skip_inactive = true ) {
|
|
global $wp_registered_widgets;
|
|
|
|
$sidebars_widgets = wp_get_sidebars_widgets();
|
|
|
|
if ( is_array($sidebars_widgets) ) {
|
|
foreach ( $sidebars_widgets as $sidebar => $widgets ) {
|
|
if ( $skip_inactive && ( 'wp_inactive_widgets' === $sidebar || 'orphaned_widgets' === substr( $sidebar, 0, 16 ) ) ) {
|
|
continue;
|
|
}
|
|
|
|
if ( is_array($widgets) ) {
|
|
foreach ( $widgets as $widget ) {
|
|
if ( ( $callback && isset($wp_registered_widgets[$widget]['callback']) && $wp_registered_widgets[$widget]['callback'] == $callback ) || ( $id_base && _get_widget_id_base($widget) == $id_base ) ) {
|
|
if ( !$widget_id || $widget_id == $wp_registered_widgets[$widget]['id'] )
|
|
return $sidebar;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Whether the dynamic sidebar is enabled and used by theme.
|
|
*
|
|
* @since 2.2.0
|
|
*
|
|
* @global array $wp_registered_widgets
|
|
* @global array $wp_registered_sidebars
|
|
*
|
|
* @return bool True, if using widgets. False, if not using widgets.
|
|
*/
|
|
function is_dynamic_sidebar() {
|
|
global $wp_registered_widgets, $wp_registered_sidebars;
|
|
$sidebars_widgets = get_option('sidebars_widgets');
|
|
foreach ( (array) $wp_registered_sidebars as $index => $sidebar ) {
|
|
if ( ! empty( $sidebars_widgets[ $index ] ) ) {
|
|
foreach ( (array) $sidebars_widgets[$index] as $widget )
|
|
if ( array_key_exists($widget, $wp_registered_widgets) )
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Whether a sidebar is in use.
|
|
*
|
|
* @since 2.8.0
|
|
*
|
|
* @param string|int $index Sidebar name, id or number to check.
|
|
* @return bool true if the sidebar is in use, false otherwise.
|
|
*/
|
|
function is_active_sidebar( $index ) {
|
|
$index = ( is_int($index) ) ? "sidebar-$index" : sanitize_title($index);
|
|
$sidebars_widgets = wp_get_sidebars_widgets();
|
|
$is_active_sidebar = ! empty( $sidebars_widgets[$index] );
|
|
|
|
/**
|
|
* Filters whether a dynamic sidebar is considered "active".
|
|
*
|
|
* @since 3.9.0
|
|
*
|
|
* @param bool $is_active_sidebar Whether or not the sidebar should be considered "active".
|
|
* In other words, whether the sidebar contains any widgets.
|
|
* @param int|string $index Index, name, or ID of the dynamic sidebar.
|
|
*/
|
|
return apply_filters( 'is_active_sidebar', $is_active_sidebar, $index );
|
|
}
|
|
|
|
//
|
|
// Internal Functions
|
|
//
|
|
|
|
/**
|
|
* Retrieve full list of sidebars and their widget instance IDs.
|
|
*
|
|
* Will upgrade sidebar widget list, if needed. Will also save updated list, if
|
|
* needed.
|
|
*
|
|
* @since 2.2.0
|
|
* @access private
|
|
*
|
|
* @global array $_wp_sidebars_widgets
|
|
* @global array $sidebars_widgets
|
|
*
|
|
* @param bool $deprecated Not used (argument deprecated).
|
|
* @return array Upgraded list of widgets to version 3 array format when called from the admin.
|
|
*/
|
|
function wp_get_sidebars_widgets( $deprecated = true ) {
|
|
if ( $deprecated !== true )
|
|
_deprecated_argument( __FUNCTION__, '2.8.1' );
|
|
|
|
global $_wp_sidebars_widgets, $sidebars_widgets;
|
|
|
|
// If loading from front page, consult $_wp_sidebars_widgets rather than options
|
|
// to see if wp_convert_widget_settings() has made manipulations in memory.
|
|
if ( !is_admin() ) {
|
|
if ( empty($_wp_sidebars_widgets) )
|
|
$_wp_sidebars_widgets = get_option('sidebars_widgets', array());
|
|
|
|
$sidebars_widgets = $_wp_sidebars_widgets;
|
|
} else {
|
|
$sidebars_widgets = get_option('sidebars_widgets', array());
|
|
}
|
|
|
|
if ( is_array( $sidebars_widgets ) && isset($sidebars_widgets['array_version']) )
|
|
unset($sidebars_widgets['array_version']);
|
|
|
|
/**
|
|
* Filters the list of sidebars and their widgets.
|
|
*
|
|
* @since 2.7.0
|
|
*
|
|
* @param array $sidebars_widgets An associative array of sidebars and their widgets.
|
|
*/
|
|
return apply_filters( 'sidebars_widgets', $sidebars_widgets );
|
|
}
|
|
|
|
/**
|
|
* Set the sidebar widget option to update sidebars.
|
|
*
|
|
* @since 2.2.0
|
|
* @access private
|
|
*
|
|
* @param array $sidebars_widgets Sidebar widgets and their settings.
|
|
*/
|
|
function wp_set_sidebars_widgets( $sidebars_widgets ) {
|
|
if ( !isset( $sidebars_widgets['array_version'] ) )
|
|
$sidebars_widgets['array_version'] = 3;
|
|
update_option( 'sidebars_widgets', $sidebars_widgets );
|
|
}
|
|
|
|
/**
|
|
* Retrieve default registered sidebars list.
|
|
*
|
|
* @since 2.2.0
|
|
* @access private
|
|
*
|
|
* @global array $wp_registered_sidebars
|
|
*
|
|
* @return array
|
|
*/
|
|
function wp_get_widget_defaults() {
|
|
global $wp_registered_sidebars;
|
|
|
|
$defaults = array();
|
|
|
|
foreach ( (array) $wp_registered_sidebars as $index => $sidebar )
|
|
$defaults[$index] = array();
|
|
|
|
return $defaults;
|
|
}
|
|
|
|
/**
|
|
* Convert the widget settings from single to multi-widget format.
|
|
*
|
|
* @since 2.8.0
|
|
*
|
|
* @global array $_wp_sidebars_widgets
|
|
*
|
|
* @param string $base_name
|
|
* @param string $option_name
|
|
* @param array $settings
|
|
* @return array
|
|
*/
|
|
function wp_convert_widget_settings($base_name, $option_name, $settings) {
|
|
// This test may need expanding.
|
|
$single = $changed = false;
|
|
if ( empty($settings) ) {
|
|
$single = true;
|
|
} else {
|
|
foreach ( array_keys($settings) as $number ) {
|
|
if ( 'number' == $number )
|
|
continue;
|
|
if ( !is_numeric($number) ) {
|
|
$single = true;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
if ( $single ) {
|
|
$settings = array( 2 => $settings );
|
|
|
|
// If loading from the front page, update sidebar in memory but don't save to options
|
|
if ( is_admin() ) {
|
|
$sidebars_widgets = get_option('sidebars_widgets');
|
|
} else {
|
|
if ( empty($GLOBALS['_wp_sidebars_widgets']) )
|
|
$GLOBALS['_wp_sidebars_widgets'] = get_option('sidebars_widgets', array());
|
|
$sidebars_widgets = &$GLOBALS['_wp_sidebars_widgets'];
|
|
}
|
|
|
|
foreach ( (array) $sidebars_widgets as $index => $sidebar ) {
|
|
if ( is_array($sidebar) ) {
|
|
foreach ( $sidebar as $i => $name ) {
|
|
if ( $base_name == $name ) {
|
|
$sidebars_widgets[$index][$i] = "$name-2";
|
|
$changed = true;
|
|
break 2;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if ( is_admin() && $changed )
|
|
update_option('sidebars_widgets', $sidebars_widgets);
|
|
}
|
|
|
|
$settings['_multiwidget'] = 1;
|
|
if ( is_admin() )
|
|
update_option( $option_name, $settings );
|
|
|
|
return $settings;
|
|
}
|
|
|
|
/**
|
|
* Output an arbitrary widget as a template tag.
|
|
*
|
|
* @since 2.8.0
|
|
*
|
|
* @global WP_Widget_Factory $wp_widget_factory
|
|
*
|
|
* @param string $widget The widget's PHP class name (see class-wp-widget.php).
|
|
* @param array $instance Optional. The widget's instance settings. Default empty array.
|
|
* @param array $args {
|
|
* Optional. Array of arguments to configure the display of the widget.
|
|
*
|
|
* @type string $before_widget HTML content that will be prepended to the widget's HTML output.
|
|
* Default `<div class="widget %s">`, where `%s` is the widget's class name.
|
|
* @type string $after_widget HTML content that will be appended to the widget's HTML output.
|
|
* Default `</div>`.
|
|
* @type string $before_title HTML content that will be prepended to the widget's title when displayed.
|
|
* Default `<h2 class="widgettitle">`.
|
|
* @type string $after_title HTML content that will be appended to the widget's title when displayed.
|
|
* Default `</h2>`.
|
|
* }
|
|
*/
|
|
function the_widget( $widget, $instance = array(), $args = array() ) {
|
|
global $wp_widget_factory;
|
|
|
|
$widget_obj = $wp_widget_factory->widgets[$widget];
|
|
if ( ! ( $widget_obj instanceof WP_Widget ) ) {
|
|
return;
|
|
}
|
|
|
|
$default_args = array(
|
|
'before_widget' => '<div class="widget %s">',
|
|
'after_widget' => "</div>",
|
|
'before_title' => '<h2 class="widgettitle">',
|
|
'after_title' => '</h2>',
|
|
);
|
|
$args = wp_parse_args( $args, $default_args );
|
|
$args['before_widget'] = sprintf( $args['before_widget'], $widget_obj->widget_options['classname'] );
|
|
|
|
$instance = wp_parse_args($instance);
|
|
|
|
/**
|
|
* Fires before rendering the requested widget.
|
|
*
|
|
* @since 3.0.0
|
|
*
|
|
* @param string $widget The widget's class name.
|
|
* @param array $instance The current widget instance's settings.
|
|
* @param array $args An array of the widget's sidebar arguments.
|
|
*/
|
|
do_action( 'the_widget', $widget, $instance, $args );
|
|
|
|
$widget_obj->_set(-1);
|
|
$widget_obj->widget($args, $instance);
|
|
}
|
|
|
|
/**
|
|
* Retrieves the widget ID base value.
|
|
*
|
|
* @since 2.8.0
|
|
*
|
|
* @param string $id Widget ID.
|
|
* @return string Widget ID base.
|
|
*/
|
|
function _get_widget_id_base( $id ) {
|
|
return preg_replace( '/-[0-9]+$/', '', $id );
|
|
}
|
|
|
|
/**
|
|
* Handle sidebars config after theme change
|
|
*
|
|
* @access private
|
|
* @since 3.3.0
|
|
*
|
|
* @global array $sidebars_widgets
|
|
*/
|
|
function _wp_sidebars_changed() {
|
|
global $sidebars_widgets;
|
|
|
|
if ( ! is_array( $sidebars_widgets ) )
|
|
$sidebars_widgets = wp_get_sidebars_widgets();
|
|
|
|
retrieve_widgets(true);
|
|
}
|
|
|
|
/**
|
|
* Look for "lost" widgets, this has to run at least on each theme change.
|
|
*
|
|
* @since 2.8.0
|
|
*
|
|
* @global array $wp_registered_sidebars
|
|
* @global array $sidebars_widgets
|
|
* @global array $wp_registered_widgets
|
|
*
|
|
* @param string|bool $theme_changed Whether the theme was changed as a boolean. A value
|
|
* of 'customize' defers updates for the Customizer.
|
|
* @return array|void
|
|
*/
|
|
function retrieve_widgets( $theme_changed = false ) {
|
|
global $wp_registered_sidebars, $sidebars_widgets, $wp_registered_widgets;
|
|
|
|
$registered_sidebar_keys = array_keys( $wp_registered_sidebars );
|
|
$orphaned = 0;
|
|
|
|
$old_sidebars_widgets = get_theme_mod( 'sidebars_widgets' );
|
|
if ( is_array( $old_sidebars_widgets ) ) {
|
|
// time() that sidebars were stored is in $old_sidebars_widgets['time']
|
|
$_sidebars_widgets = $old_sidebars_widgets['data'];
|
|
|
|
if ( 'customize' !== $theme_changed ) {
|
|
remove_theme_mod( 'sidebars_widgets' );
|
|
}
|
|
|
|
foreach ( $_sidebars_widgets as $sidebar => $widgets ) {
|
|
if ( 'wp_inactive_widgets' === $sidebar || 'orphaned_widgets' === substr( $sidebar, 0, 16 ) ) {
|
|
continue;
|
|
}
|
|
|
|
if ( !in_array( $sidebar, $registered_sidebar_keys ) ) {
|
|
$_sidebars_widgets['orphaned_widgets_' . ++$orphaned] = $widgets;
|
|
unset( $_sidebars_widgets[$sidebar] );
|
|
}
|
|
}
|
|
} else {
|
|
if ( empty( $sidebars_widgets ) )
|
|
return;
|
|
|
|
unset( $sidebars_widgets['array_version'] );
|
|
|
|
$old = array_keys($sidebars_widgets);
|
|
sort($old);
|
|
sort($registered_sidebar_keys);
|
|
|
|
if ( $old == $registered_sidebar_keys )
|
|
return;
|
|
|
|
$_sidebars_widgets = array(
|
|
'wp_inactive_widgets' => !empty( $sidebars_widgets['wp_inactive_widgets'] ) ? $sidebars_widgets['wp_inactive_widgets'] : array()
|
|
);
|
|
|
|
unset( $sidebars_widgets['wp_inactive_widgets'] );
|
|
|
|
foreach ( $wp_registered_sidebars as $id => $settings ) {
|
|
if ( $theme_changed ) {
|
|
$_sidebars_widgets[$id] = array_shift( $sidebars_widgets );
|
|
} else {
|
|
// no theme change, grab only sidebars that are currently registered
|
|
if ( isset( $sidebars_widgets[$id] ) ) {
|
|
$_sidebars_widgets[$id] = $sidebars_widgets[$id];
|
|
unset( $sidebars_widgets[$id] );
|
|
}
|
|
}
|
|
}
|
|
|
|
foreach ( $sidebars_widgets as $val ) {
|
|
if ( is_array($val) && ! empty( $val ) )
|
|
$_sidebars_widgets['orphaned_widgets_' . ++$orphaned] = $val;
|
|
}
|
|
}
|
|
|
|
// discard invalid, theme-specific widgets from sidebars
|
|
$shown_widgets = array();
|
|
|
|
foreach ( $_sidebars_widgets as $sidebar => $widgets ) {
|
|
if ( !is_array($widgets) )
|
|
continue;
|
|
|
|
$_widgets = array();
|
|
foreach ( $widgets as $widget ) {
|
|
if ( isset($wp_registered_widgets[$widget]) )
|
|
$_widgets[] = $widget;
|
|
}
|
|
|
|
$_sidebars_widgets[$sidebar] = $_widgets;
|
|
$shown_widgets = array_merge($shown_widgets, $_widgets);
|
|
}
|
|
|
|
$sidebars_widgets = $_sidebars_widgets;
|
|
unset($_sidebars_widgets, $_widgets);
|
|
|
|
// find hidden/lost multi-widget instances
|
|
$lost_widgets = array();
|
|
foreach ( $wp_registered_widgets as $key => $val ) {
|
|
if ( in_array($key, $shown_widgets, true) )
|
|
continue;
|
|
|
|
$number = preg_replace('/.+?-([0-9]+)$/', '$1', $key);
|
|
|
|
if ( 2 > (int) $number )
|
|
continue;
|
|
|
|
$lost_widgets[] = $key;
|
|
}
|
|
|
|
$sidebars_widgets['wp_inactive_widgets'] = array_merge($lost_widgets, (array) $sidebars_widgets['wp_inactive_widgets']);
|
|
if ( 'customize' !== $theme_changed ) {
|
|
wp_set_sidebars_widgets( $sidebars_widgets );
|
|
}
|
|
|
|
return $sidebars_widgets;
|
|
}
|
|
|
|
/**
|
|
* Display the RSS entries in a list.
|
|
*
|
|
* @since 2.5.0
|
|
*
|
|
* @param string|array|object $rss RSS url.
|
|
* @param array $args Widget arguments.
|
|
*/
|
|
function wp_widget_rss_output( $rss, $args = array() ) {
|
|
if ( is_string( $rss ) ) {
|
|
$rss = fetch_feed($rss);
|
|
} elseif ( is_array($rss) && isset($rss['url']) ) {
|
|
$args = $rss;
|
|
$rss = fetch_feed($rss['url']);
|
|
} elseif ( !is_object($rss) ) {
|
|
return;
|
|
}
|
|
|
|
if ( is_wp_error($rss) ) {
|
|
if ( is_admin() || current_user_can('manage_options') )
|
|
echo '<p><strong>' . __( 'RSS Error:' ) . '</strong> ' . $rss->get_error_message() . '</p>';
|
|
return;
|
|
}
|
|
|
|
$default_args = array( 'show_author' => 0, 'show_date' => 0, 'show_summary' => 0, 'items' => 0 );
|
|
$args = wp_parse_args( $args, $default_args );
|
|
|
|
$items = (int) $args['items'];
|
|
if ( $items < 1 || 20 < $items )
|
|
$items = 10;
|
|
$show_summary = (int) $args['show_summary'];
|
|
$show_author = (int) $args['show_author'];
|
|
$show_date = (int) $args['show_date'];
|
|
|
|
if ( !$rss->get_item_quantity() ) {
|
|
echo '<ul><li>' . __( 'An error has occurred, which probably means the feed is down. Try again later.' ) . '</li></ul>';
|
|
$rss->__destruct();
|
|
unset($rss);
|
|
return;
|
|
}
|
|
|
|
echo '<ul>';
|
|
foreach ( $rss->get_items( 0, $items ) as $item ) {
|
|
$link = $item->get_link();
|
|
while ( stristr( $link, 'http' ) != $link ) {
|
|
$link = substr( $link, 1 );
|
|
}
|
|
$link = esc_url( strip_tags( $link ) );
|
|
|
|
$title = esc_html( trim( strip_tags( $item->get_title() ) ) );
|
|
if ( empty( $title ) ) {
|
|
$title = __( 'Untitled' );
|
|
}
|
|
|
|
$desc = @html_entity_decode( $item->get_description(), ENT_QUOTES, get_option( 'blog_charset' ) );
|
|
$desc = esc_attr( wp_trim_words( $desc, 55, ' […]' ) );
|
|
|
|
$summary = '';
|
|
if ( $show_summary ) {
|
|
$summary = $desc;
|
|
|
|
// Change existing [...] to […].
|
|
if ( '[...]' == substr( $summary, -5 ) ) {
|
|
$summary = substr( $summary, 0, -5 ) . '[…]';
|
|
}
|
|
|
|
$summary = '<div class="rssSummary">' . esc_html( $summary ) . '</div>';
|
|
}
|
|
|
|
$date = '';
|
|
if ( $show_date ) {
|
|
$date = $item->get_date( 'U' );
|
|
|
|
if ( $date ) {
|
|
$date = ' <span class="rss-date">' . date_i18n( get_option( 'date_format' ), $date ) . '</span>';
|
|
}
|
|
}
|
|
|
|
$author = '';
|
|
if ( $show_author ) {
|
|
$author = $item->get_author();
|
|
if ( is_object($author) ) {
|
|
$author = $author->get_name();
|
|
$author = ' <cite>' . esc_html( strip_tags( $author ) ) . '</cite>';
|
|
}
|
|
}
|
|
|
|
if ( $link == '' ) {
|
|
echo "<li>$title{$date}{$summary}{$author}</li>";
|
|
} elseif ( $show_summary ) {
|
|
echo "<li><a class='rsswidget' href='$link'>$title</a>{$date}{$summary}{$author}</li>";
|
|
} else {
|
|
echo "<li><a class='rsswidget' href='$link'>$title</a>{$date}{$author}</li>";
|
|
}
|
|
}
|
|
echo '</ul>';
|
|
$rss->__destruct();
|
|
unset($rss);
|
|
}
|
|
|
|
/**
|
|
* Display RSS widget options form.
|
|
*
|
|
* The options for what fields are displayed for the RSS form are all booleans
|
|
* and are as follows: 'url', 'title', 'items', 'show_summary', 'show_author',
|
|
* 'show_date'.
|
|
*
|
|
* @since 2.5.0
|
|
*
|
|
* @param array|string $args Values for input fields.
|
|
* @param array $inputs Override default display options.
|
|
*/
|
|
function wp_widget_rss_form( $args, $inputs = null ) {
|
|
$default_inputs = array( 'url' => true, 'title' => true, 'items' => true, 'show_summary' => true, 'show_author' => true, 'show_date' => true );
|
|
$inputs = wp_parse_args( $inputs, $default_inputs );
|
|
|
|
$args['title'] = isset( $args['title'] ) ? $args['title'] : '';
|
|
$args['url'] = isset( $args['url'] ) ? $args['url'] : '';
|
|
$args['items'] = isset( $args['items'] ) ? (int) $args['items'] : 0;
|
|
|
|
if ( $args['items'] < 1 || 20 < $args['items'] ) {
|
|
$args['items'] = 10;
|
|
}
|
|
|
|
$args['show_summary'] = isset( $args['show_summary'] ) ? (int) $args['show_summary'] : (int) $inputs['show_summary'];
|
|
$args['show_author'] = isset( $args['show_author'] ) ? (int) $args['show_author'] : (int) $inputs['show_author'];
|
|
$args['show_date'] = isset( $args['show_date'] ) ? (int) $args['show_date'] : (int) $inputs['show_date'];
|
|
|
|
if ( ! empty( $args['error'] ) ) {
|
|
echo '<p class="widget-error"><strong>' . __( 'RSS Error:' ) . '</strong> ' . $args['error'] . '</p>';
|
|
}
|
|
|
|
$esc_number = esc_attr( $args['number'] );
|
|
if ( $inputs['url'] ) :
|
|
?>
|
|
<p><label for="rss-url-<?php echo $esc_number; ?>"><?php _e( 'Enter the RSS feed URL here:' ); ?></label>
|
|
<input class="widefat" id="rss-url-<?php echo $esc_number; ?>" name="widget-rss[<?php echo $esc_number; ?>][url]" type="text" value="<?php echo esc_url( $args['url'] ); ?>" /></p>
|
|
<?php endif; if ( $inputs['title'] ) : ?>
|
|
<p><label for="rss-title-<?php echo $esc_number; ?>"><?php _e( 'Give the feed a title (optional):' ); ?></label>
|
|
<input class="widefat" id="rss-title-<?php echo $esc_number; ?>" name="widget-rss[<?php echo $esc_number; ?>][title]" type="text" value="<?php echo esc_attr( $args['title'] ); ?>" placeholder="<?php esc_attr_e( '(Title from feed)' ) ?>" /></p>
|
|
<?php endif; if ( $inputs['items'] ) : ?>
|
|
<p><label for="rss-items-<?php echo $esc_number; ?>"><?php _e( 'How many items would you like to display?' ); ?></label>
|
|
<select id="rss-items-<?php echo $esc_number; ?>" name="widget-rss[<?php echo $esc_number; ?>][items]">
|
|
<?php
|
|
for ( $i = 1; $i <= 20; ++$i ) {
|
|
echo "<option value='$i' " . selected( $args['items'], $i, false ) . ">$i</option>";
|
|
}
|
|
?>
|
|
</select></p>
|
|
<?php endif; if ( $inputs['show_summary'] ) : ?>
|
|
<p><input id="rss-show-summary-<?php echo $esc_number; ?>" name="widget-rss[<?php echo $esc_number; ?>][show_summary]" type="checkbox" value="1" <?php checked( $args['show_summary'] ); ?> />
|
|
<label for="rss-show-summary-<?php echo $esc_number; ?>"><?php _e( 'Display item content?' ); ?></label></p>
|
|
<?php endif; if ( $inputs['show_author'] ) : ?>
|
|
<p><input id="rss-show-author-<?php echo $esc_number; ?>" name="widget-rss[<?php echo $esc_number; ?>][show_author]" type="checkbox" value="1" <?php checked( $args['show_author'] ); ?> />
|
|
<label for="rss-show-author-<?php echo $esc_number; ?>"><?php _e( 'Display item author if available?' ); ?></label></p>
|
|
<?php endif; if ( $inputs['show_date'] ) : ?>
|
|
<p><input id="rss-show-date-<?php echo $esc_number; ?>" name="widget-rss[<?php echo $esc_number; ?>][show_date]" type="checkbox" value="1" <?php checked( $args['show_date'] ); ?>/>
|
|
<label for="rss-show-date-<?php echo $esc_number; ?>"><?php _e( 'Display item date?' ); ?></label></p>
|
|
<?php
|
|
endif;
|
|
foreach ( array_keys($default_inputs) as $input ) :
|
|
if ( 'hidden' === $inputs[$input] ) :
|
|
$id = str_replace( '_', '-', $input );
|
|
?>
|
|
<input type="hidden" id="rss-<?php echo esc_attr( $id ); ?>-<?php echo $esc_number; ?>" name="widget-rss[<?php echo $esc_number; ?>][<?php echo esc_attr( $input ); ?>]" value="<?php echo esc_attr( $args[ $input ] ); ?>" />
|
|
<?php
|
|
endif;
|
|
endforeach;
|
|
}
|
|
|
|
/**
|
|
* Process RSS feed widget data and optionally retrieve feed items.
|
|
*
|
|
* The feed widget can not have more than 20 items or it will reset back to the
|
|
* default, which is 10.
|
|
*
|
|
* The resulting array has the feed title, feed url, feed link (from channel),
|
|
* feed items, error (if any), and whether to show summary, author, and date.
|
|
* All respectively in the order of the array elements.
|
|
*
|
|
* @since 2.5.0
|
|
*
|
|
* @param array $widget_rss RSS widget feed data. Expects unescaped data.
|
|
* @param bool $check_feed Optional, default is true. Whether to check feed for errors.
|
|
* @return array
|
|
*/
|
|
function wp_widget_rss_process( $widget_rss, $check_feed = true ) {
|
|
$items = (int) $widget_rss['items'];
|
|
if ( $items < 1 || 20 < $items )
|
|
$items = 10;
|
|
$url = esc_url_raw( strip_tags( $widget_rss['url'] ) );
|
|
$title = isset( $widget_rss['title'] ) ? trim( strip_tags( $widget_rss['title'] ) ) : '';
|
|
$show_summary = isset( $widget_rss['show_summary'] ) ? (int) $widget_rss['show_summary'] : 0;
|
|
$show_author = isset( $widget_rss['show_author'] ) ? (int) $widget_rss['show_author'] :0;
|
|
$show_date = isset( $widget_rss['show_date'] ) ? (int) $widget_rss['show_date'] : 0;
|
|
|
|
if ( $check_feed ) {
|
|
$rss = fetch_feed($url);
|
|
$error = false;
|
|
$link = '';
|
|
if ( is_wp_error($rss) ) {
|
|
$error = $rss->get_error_message();
|
|
} else {
|
|
$link = esc_url(strip_tags($rss->get_permalink()));
|
|
while ( stristr($link, 'http') != $link )
|
|
$link = substr($link, 1);
|
|
|
|
$rss->__destruct();
|
|
unset($rss);
|
|
}
|
|
}
|
|
|
|
return compact( 'title', 'url', 'link', 'items', 'error', 'show_summary', 'show_author', 'show_date' );
|
|
}
|
|
|
|
/**
|
|
* Registers all of the default WordPress widgets on startup.
|
|
*
|
|
* Calls {@see 'widgets_init'} action after all of the WordPress widgets have been registered.
|
|
*
|
|
* @since 2.2.0
|
|
*/
|
|
function wp_widgets_init() {
|
|
if ( ! is_blog_installed() ) {
|
|
return;
|
|
}
|
|
|
|
register_widget( 'WP_Widget_Pages' );
|
|
|
|
register_widget( 'WP_Widget_Calendar' );
|
|
|
|
register_widget( 'WP_Widget_Archives' );
|
|
|
|
if ( get_option( 'link_manager_enabled' ) ) {
|
|
register_widget( 'WP_Widget_Links' );
|
|
}
|
|
|
|
register_widget( 'WP_Widget_Media_Audio' );
|
|
|
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register_widget( 'WP_Widget_Media_Image' );
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|
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register_widget( 'WP_Widget_Media_Video' );
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|
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register_widget( 'WP_Widget_Meta' );
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|
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register_widget( 'WP_Widget_Search' );
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|
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register_widget( 'WP_Widget_Text' );
|
|
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register_widget( 'WP_Widget_Categories' );
|
|
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register_widget( 'WP_Widget_Recent_Posts' );
|
|
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register_widget( 'WP_Widget_Recent_Comments' );
|
|
|
|
register_widget( 'WP_Widget_RSS' );
|
|
|
|
register_widget( 'WP_Widget_Tag_Cloud' );
|
|
|
|
register_widget( 'WP_Nav_Menu_Widget' );
|
|
|
|
/**
|
|
* Fires after all default WordPress widgets have been registered.
|
|
*
|
|
* @since 2.2.0
|
|
*/
|
|
do_action( 'widgets_init' );
|
|
}
|