| 1 | <?php |
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| 2 | /** |
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| 3 | * API for creating dynamic sidebar without hardcoding functionality into |
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| 4 | * themes. Includes both internal WordPress routines and theme use routines. |
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| 5 | * |
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| 6 | * This functionality was found in a plugin before WordPress 2.2 release which |
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| 7 | * included it in the core from that point on. |
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| 8 | * |
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| 9 | * @link http://codex.wordpress.org/Plugins/WordPress_Widgets WordPress Widgets |
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| 10 | * @link http://codex.wordpress.org/Plugins/WordPress_Widgets_Api Widgets API |
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| 11 | * |
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| 12 | * @package WordPress |
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| 13 | * @subpackage Widgets |
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| 14 | */ |
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| 15 | |
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| 16 | /** |
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| 17 | * This class must be extended for each widget and WP_Widget::widget(), WP_Widget::update() |
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| 18 | * and WP_Widget::form() need to be over-ridden. |
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| 19 | * |
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| 20 | * @package WordPress |
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| 21 | * @subpackage Widgets |
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| 22 | * @since 2.8 |
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| 23 | */ |
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| 24 | class WP_Widget { |
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| 25 | |
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| 26 | var $id_base; // Root id for all widgets of this type. |
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| 27 | var $name; // Name for this widget type. |
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| 28 | var $widget_options; // Option array passed to wp_register_sidebar_widget() |
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| 29 | var $control_options; // Option array passed to wp_register_widget_control() |
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| 30 | |
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| 31 | var $number = false; // Unique ID number of the current instance. |
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| 32 | var $id = false; // Unique ID string of the current instance (id_base-number) |
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| 33 | var $updated = false; // Set true when we update the data after a POST submit - makes sure we don't do it twice. |
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| 34 | |
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| 35 | // Member functions that you must over-ride. |
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| 36 | |
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| 37 | /** Echo the widget content. |
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| 38 | * |
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| 39 | * Subclasses should over-ride this function to generate their widget code. |
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| 40 | * |
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| 41 | * @param array $args Display arguments including before_title, after_title, before_widget, and after_widget. |
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| 42 | * @param array $instance The settings for the particular instance of the widget |
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| 43 | */ |
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| 44 | function widget($args, $instance) { |
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| 45 | die('function WP_Widget::widget() must be over-ridden in a sub-class.'); |
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| 46 | } |
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| 47 | |
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| 48 | /** Update a particular instance. |
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| 49 | * |
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| 50 | * This function should check that $new_instance is set correctly. |
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| 51 | * The newly calculated value of $instance should be returned. |
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| 52 | * If "false" is returned, the instance won't be saved/updated. |
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| 53 | * |
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| 54 | * @param array $new_instance New settings for this instance as input by the user via form() |
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| 55 | * @param array $old_instance Old settings for this instance |
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| 56 | * @return array Settings to save or bool false to cancel saving |
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| 57 | */ |
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| 58 | function update($new_instance, $old_instance) { |
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| 59 | return $new_instance; |
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| 60 | } |
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| 61 | |
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| 62 | /** Echo the settings update form |
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| 63 | * |
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| 64 | * @param array $instance Current settings |
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| 65 | */ |
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| 66 | function form($instance) { |
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| 67 | echo '<p>' . __('There are no options for this widget.') . '</p>'; |
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| 68 | } |
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| 69 | |
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| 70 | // Functions you'll need to call. |
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| 71 | |
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| 72 | /** |
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| 73 | * PHP4 constructor |
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| 74 | */ |
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| 75 | function WP_Widget( $id_base, $name, $widget_options = array(), $control_options = array() ) { |
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| 76 | $this->__construct( $id_base, $name, $widget_options, $control_options ); |
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| 77 | } |
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| 78 | |
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| 79 | /** |
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| 80 | * PHP5 constructor |
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| 81 | * widget_options: passed to wp_register_sidebar_widget() |
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| 82 | * - description |
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| 83 | * - classname |
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| 84 | * control_options: passed to wp_register_widget_control() |
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| 85 | * - width |
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| 86 | * - height |
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| 87 | */ |
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| 88 | function __construct( $id_base, $name, $widget_options = array(), $control_options = array() ) { |
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| 89 | $this->id_base = $id_base; |
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| 90 | $this->name = $name; |
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| 91 | $this->option_name = 'widget_' . $id_base; |
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| 92 | $this->widget_options = wp_parse_args( $widget_options, array('classname' => $this->option_name) ); |
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| 93 | $this->control_options = wp_parse_args( $control_options, array('id_base' => $this->id_base) ); |
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| 94 | |
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| 95 | //add_action( 'widgets_init', array( &$this, '_register' ) ); |
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| 96 | } |
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| 97 | |
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| 98 | /** Constructs name attributes for use in form() fields |
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| 99 | * |
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| 100 | * This function should be used in form() methods to create name attributes for fields to be saved by update() |
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| 101 | * |
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| 102 | * @param string $field_name Field name |
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| 103 | * @return string Name attribute for $field_name |
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| 104 | */ |
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| 105 | function get_field_name($field_name) { |
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| 106 | return 'widget-' . $this->id_base . '[' . $this->number . '][' . $field_name . ']'; |
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| 107 | } |
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| 108 | |
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| 109 | /** Constructs id attributes for use in form() fields |
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| 110 | * |
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| 111 | * This function should be used in form() methods to create id attributes for fields to be saved by update() |
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| 112 | * |
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| 113 | * @param string $field_name Field name |
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| 114 | * @return string ID attribute for $field_name |
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| 115 | */ |
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| 116 | function get_field_id($field_name) { |
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| 117 | return 'widget-' . $this->id_base . '-' . $this->number . '-' . $field_name; |
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| 118 | } |
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| 119 | |
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| 120 | // Private Functions. Don't worry about these. |
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| 121 | |
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| 122 | function _register() { |
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| 123 | $settings = $this->get_settings(); |
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| 124 | |
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| 125 | if ( empty($settings) ) { |
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| 126 | // If there are none, we register the widget's existance with a |
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| 127 | // generic template |
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| 128 | $this->_set(1); |
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| 129 | $this->_register_one(); |
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| 130 | } elseif ( is_array($settings) ) { |
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| 131 | foreach ( array_keys($settings) as $number ) { |
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| 132 | if ( is_numeric($number) ) { |
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| 133 | $this->_set($number); |
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| 134 | $this->_register_one($number); |
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| 135 | } |
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| 136 | } |
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| 137 | } |
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| 138 | } |
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| 139 | |
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| 140 | function _set($number) { |
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| 141 | $this->number = $number; |
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| 142 | $this->id = $this->id_base . '-' . $number; |
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| 143 | } |
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| 144 | |
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| 145 | function _get_display_callback() { |
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| 146 | return array(&$this, 'display_callback'); |
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| 147 | } |
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| 148 | |
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| 149 | function _get_update_callback() { |
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| 150 | return array(&$this, 'update_callback'); |
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| 151 | } |
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| 152 | |
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| 153 | function _get_form_callback() { |
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| 154 | return array(&$this, 'form_callback'); |
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| 155 | } |
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| 156 | |
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| 157 | /** Generate the actual widget content. |
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| 158 | * Just finds the instance and calls widget(). |
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| 159 | * Do NOT over-ride this function. */ |
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| 160 | function display_callback( $args, $widget_args = 1 ) { |
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| 161 | if ( is_numeric($widget_args) ) |
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| 162 | $widget_args = array( 'number' => $widget_args ); |
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| 163 | |
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| 164 | $widget_args = wp_parse_args( $widget_args, array( 'number' => -1 ) ); |
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| 165 | $this->_set( $widget_args['number'] ); |
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| 166 | $settings = $this->get_settings(); |
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| 167 | |
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| 168 | if ( array_key_exists( $this->number, $settings ) ) { |
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| 169 | $hide_widget = apply_filters('widget_display_test', $settings[$this->number]); //Add hook to test if widget should be displayed. |
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| 170 | if (!$hide_widget) $this->widget($args, $settings[$this->number]); //Test and display widget. |
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| 171 | $this->widget($args, $settings[$this->number]); |
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| 172 | } |
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| 173 | } |
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| 174 | |
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| 175 | /** Deal with changed settings. |
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| 176 | * Do NOT over-ride this function. */ |
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| 177 | function update_callback( $widget_args = 1 ) { |
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| 178 | global $wp_registered_widgets; |
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| 179 | |
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| 180 | if ( is_numeric($widget_args) ) |
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| 181 | $widget_args = array( 'number' => $widget_args ); |
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| 182 | |
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| 183 | $widget_args = wp_parse_args( $widget_args, array( 'number' => -1 ) ); |
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| 184 | $all_instances = $this->get_settings(); |
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| 185 | |
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| 186 | // We need to update the data |
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| 187 | if ( !$this->updated && !empty($_POST['sidebar']) ) { |
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| 188 | |
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| 189 | // Tells us what sidebar to put the data in |
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| 190 | $sidebar = (string) $_POST['sidebar']; |
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| 191 | |
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| 192 | $sidebars_widgets = wp_get_sidebars_widgets(); |
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| 193 | if ( isset($sidebars_widgets[$sidebar]) ) |
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| 194 | $this_sidebar =& $sidebars_widgets[$sidebar]; |
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| 195 | else |
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| 196 | $this_sidebar = array(); |
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| 197 | |
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| 198 | if ( isset($_POST['delete_widget']) && $_POST['delete_widget'] ) { |
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| 199 | // Delete the settings for this instance of the widget |
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| 200 | if ( isset($_POST['widget-id']) ) |
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| 201 | $del_id = $_POST['widget-id']; |
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| 202 | else |
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| 203 | return; |
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| 204 | |
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| 205 | if ( $this->_get_display_callback() == $wp_registered_widgets[$del_id]['callback'] && isset($wp_registered_widgets[$del_id]['params'][0]['number']) ) { |
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| 206 | $number = $wp_registered_widgets[$del_id]['params'][0]['number']; |
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| 207 | |
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| 208 | if ( $this->id_base . '-' . $number == $del_id ) { |
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| 209 | unset($all_instances[$number]); |
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| 210 | } |
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| 211 | } |
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| 212 | } else { |
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| 213 | foreach ( (array) $_POST['widget-' . $this->id_base] as $number => $new_instance ) { |
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| 214 | $new_instance = stripslashes_deep($new_instance); |
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| 215 | $this->_set($number); |
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| 216 | |
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| 217 | if ( isset($all_instances[$number]) ) |
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| 218 | $instance = $this->update($new_instance, $all_instances[$number]); |
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| 219 | else |
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| 220 | $instance = $this->update($new_instance, array()); |
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| 221 | |
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| 222 | if ( false !== $instance ) { |
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| 223 | $widget_details_compare = array($new_instance,$instance); |
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| 224 | $instance = apply_filters('default_widget_options_update',$widget_details_compare); //Callback to apply default or other options to be added to list of widget options to store in database |
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| 225 | $all_instances[$number] = $instance; |
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| 226 | |
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| 227 | } |
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| 228 | } |
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| 229 | } |
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| 230 | |
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| 231 | $this->save_settings($all_instances); |
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| 232 | $this->updated = true; |
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| 233 | } |
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| 234 | } |
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| 235 | |
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| 236 | /** Generate the control form. |
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| 237 | * Do NOT over-ride this function. */ |
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| 238 | function form_callback( $widget_args = 1 ) { |
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| 239 | if ( is_numeric($widget_args) ) |
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| 240 | $widget_args = array( 'number' => $widget_args ); |
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| 241 | |
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| 242 | $widget_args = wp_parse_args( $widget_args, array( 'number' => -1 ) ); |
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| 243 | $all_instances = $this->get_settings(); |
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| 244 | |
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| 245 | if ( -1 == $widget_args['number'] ) { |
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| 246 | // We echo out a form where 'number' can be set later |
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| 247 | $this->_set('__i__'); |
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| 248 | $instance = array(); |
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| 249 | } else { |
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| 250 | $this->_set($widget_args['number']); |
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| 251 | $instance = $all_instances[ $widget_args['number'] ]; |
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| 252 | } |
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| 253 | |
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| 254 | $this->form($instance); |
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| 255 | $widget_details = array($this->id_base,$this->number,$instance); |
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| 256 | do_action('default_widget_options_display', $widget_details); //Add action hook to display default widget information or options |
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| 257 | } |
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| 258 | |
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| 259 | /** Helper function: Registers a single instance. */ |
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| 260 | function _register_one($number = -1) { |
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| 261 | wp_register_sidebar_widget( $this->id, $this->name, $this->_get_display_callback(), $this->widget_options, array( 'number' => $number ) ); |
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| 262 | _register_widget_update_callback( $this->id_base, $this->_get_update_callback(), $this->control_options, array( 'number' => -1 ) ); |
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| 263 | _register_widget_form_callback( $this->id, $this->name, $this->_get_form_callback(), $this->control_options, array( 'number' => $number ) ); |
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| 264 | } |
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| 265 | |
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| 266 | function save_settings($settings) { |
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| 267 | $settings['_multiwidget'] = 1; |
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| 268 | update_option( $this->option_name, $settings ); |
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| 269 | } |
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| 270 | |
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| 271 | function get_settings() { |
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| 272 | $settings = get_option($this->option_name); |
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| 273 | |
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| 274 | if ( !is_array($settings) ) |
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| 275 | $settings = array(); |
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| 276 | |
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| 277 | if ( !array_key_exists('_multiwidget', $settings) ) { |
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| 278 | // old format, conver if single widget |
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| 279 | $settings = wp_convert_widget_settings($this->id_base, $this->option_name, $settings); |
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| 280 | } |
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| 281 | |
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| 282 | unset($settings['_multiwidget']); |
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| 283 | return $settings; |
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| 284 | } |
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| 285 | } |
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| 286 | |
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| 287 | /** |
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| 288 | * Singleton that registers and instantiates WP_Widget classes. |
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| 289 | * |
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| 290 | * @package WordPress |
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| 291 | * @subpackage Widgets |
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| 292 | * @since 2.8 |
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| 293 | */ |
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| 294 | class WP_Widget_Factory { |
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| 295 | var $widgets = array(); |
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| 296 | |
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| 297 | function WP_Widget_Factory() { |
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| 298 | add_action( 'widgets_init', array( &$this, '_register_widgets' ), 100 ); |
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| 299 | } |
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| 300 | |
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| 301 | function register($widget_class) { |
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| 302 | $this->widgets[$widget_class] = new $widget_class(); |
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| 303 | } |
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| 304 | |
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| 305 | function unregister($widget_class) { |
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| 306 | if ( isset($this->widgets[$widget_class]) ) |
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| 307 | unset($this->widgets[$widget_class]); |
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| 308 | } |
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| 309 | |
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| 310 | function _register_widgets() { |
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| 311 | foreach ( $this->widgets as $widget ) |
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| 312 | $widget->_register(); |
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| 313 | } |
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| 314 | } |
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| 315 | |
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| 316 | /* Global Variables */ |
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| 317 | |
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| 318 | /** @ignore */ |
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| 319 | global $wp_registered_sidebars, $wp_registered_widgets, $wp_registered_widget_controls, $wp_registered_widget_updates; |
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| 320 | |
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| 321 | /** |
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| 322 | * Stores the sidebars, since many themes can have more than one. |
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| 323 | * |
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| 324 | * @global array $wp_registered_sidebars |
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| 325 | * @since 2.2.0 |
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| 326 | */ |
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| 327 | $wp_registered_sidebars = array(); |
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| 328 | |
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| 329 | /** |
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| 330 | * Stores the registered widgets. |
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| 331 | * |
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| 332 | * @global array $wp_registered_widgets |
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| 333 | * @since 2.2.0 |
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| 334 | */ |
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| 335 | $wp_registered_widgets = array(); |
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| 336 | |
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| 337 | /** |
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| 338 | * Stores the registered widget control (options). |
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| 339 | * |
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| 340 | * @global array $wp_registered_widget_controls |
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| 341 | * @since 2.2.0 |
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| 342 | */ |
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| 343 | $wp_registered_widget_controls = array(); |
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| 344 | $wp_registered_widget_updates = array(); |
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| 345 | |
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| 346 | /* Template tags & API functions */ |
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| 347 | |
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| 348 | /** |
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| 349 | * Register a widget |
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| 350 | * |
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| 351 | * Registers a WP_Widget widget |
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| 352 | * |
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| 353 | * @since 2.8.0 |
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| 354 | * |
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| 355 | * @see WP_Widget |
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| 356 | * @see WP_Widget_Factory |
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| 357 | * @uses WP_Widget_Factory |
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| 358 | * |
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| 359 | * @param string $widget_class The name of a class that extends WP_Widget |
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| 360 | */ |
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| 361 | function register_widget($widget_class) { |
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| 362 | global $wp_widget_factory; |
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| 363 | |
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| 364 | $wp_widget_factory->register($widget_class); |
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| 365 | } |
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| 366 | |
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| 367 | /** |
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| 368 | * Unregister a widget |
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| 369 | * |
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| 370 | * Unregisters a WP_Widget widget. Useful for unregistering default widgets. |
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| 371 | * Run within a function hooked to the widgets_init action. |
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| 372 | * |
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| 373 | * @since 2.8.0 |
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| 374 | * |
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| 375 | * @see WP_Widget |
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| 376 | * @see WP_Widget_Factory |
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| 377 | * @uses WP_Widget_Factory |
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| 378 | * |
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| 379 | * @param string $widget_class The name of a class that extends WP_Widget |
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| 380 | */ |
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| 381 | function unregister_widget($widget_class) { |
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| 382 | global $wp_widget_factory; |
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| 383 | |
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| 384 | $wp_widget_factory->unregister($widget_class); |
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| 385 | } |
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| 386 | |
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| 387 | /** |
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| 388 | * Creates multiple sidebars. |
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| 389 | * |
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| 390 | * If you wanted to quickly create multiple sidebars for a theme or internally. |
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| 391 | * This function will allow you to do so. If you don't pass the 'name' and/or |
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| 392 | * 'id' in $args, then they will be built for you. |
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| 393 | * |
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| 394 | * The default for the name is "Sidebar #", with '#' being replaced with the |
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| 395 | * number the sidebar is currently when greater than one. If first sidebar, the |
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| 396 | * name will be just "Sidebar". The default for id is "sidebar-" followed by the |
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| 397 | * number the sidebar creation is currently at. |
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| 398 | * |
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| 399 | * @since 2.2.0 |
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| 400 | * |
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| 401 | * @see register_sidebar() The second parameter is documented by register_sidebar() and is the same here. |
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| 402 | * @uses parse_str() Converts a string to an array to be used in the rest of the function. |
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| 403 | * @uses register_sidebar() Sends single sidebar information [name, id] to this |
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| 404 | * function to handle building the sidebar. |
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| 405 | * |
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| 406 | * @param int $number Number of sidebars to create. |
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| 407 | * @param string|array $args Builds Sidebar based off of 'name' and 'id' values. |
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| 408 | */ |
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| 409 | function register_sidebars($number = 1, $args = array()) { |
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| 410 | global $wp_registered_sidebars; |
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| 411 | $number = (int) $number; |
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| 412 | |
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| 413 | if ( is_string($args) ) |
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| 414 | parse_str($args, $args); |
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| 415 | |
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| 416 | for ( $i=1; $i <= $number; $i++ ) { |
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| 417 | $_args = $args; |
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| 418 | |
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| 419 | if ( $number > 1 ) { |
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| 420 | $_args['name'] = isset($args['name']) ? sprintf($args['name'], $i) : sprintf(__('Sidebar %d'), $i); |
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| 421 | } else { |
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| 422 | $_args['name'] = isset($args['name']) ? $args['name'] : __('Sidebar'); |
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| 423 | } |
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| 424 | |
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| 425 | if (isset($args['id'])) { |
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| 426 | $_args['id'] = $args['id']; |
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| 427 | } else { |
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| 428 | $n = count($wp_registered_sidebars); |
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| 429 | do { |
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| 430 | $n++; |
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| 431 | $_args['id'] = "sidebar-$n"; |
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| 432 | } while (isset($wp_registered_sidebars[$_args['id']])); |
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| 433 | } |
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| 434 | |
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| 435 | register_sidebar($_args); |
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| 436 | } |
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| 437 | } |
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| 438 | |
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| 439 | /** |
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| 440 | * Builds the definition for a single sidebar and returns the ID. |
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| 441 | * |
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| 442 | * The $args parameter takes either a string or an array with 'name' and 'id' |
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| 443 | * contained in either usage. It will be noted that the values will be applied |
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| 444 | * to all sidebars, so if creating more than one, it will be advised to allow |
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| 445 | * for WordPress to create the defaults for you. |
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| 446 | * |
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| 447 | * Example for string would be <code>'name=whatever;id=whatever1'</code> and for |
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| 448 | * the array it would be <code>array( |
|---|
| 449 | * 'name' => 'whatever', |
|---|
| 450 | * 'id' => 'whatever1')</code>. |
|---|
| 451 | * |
|---|
| 452 | * name - The name of the sidebar, which presumably the title which will be |
|---|
| 453 | * displayed. |
|---|
| 454 | * id - The unique identifier by which the sidebar will be called by. |
|---|
| 455 | * before_widget - The content that will prepended to the widgets when they are |
|---|
| 456 | * displayed. |
|---|
| 457 | * after_widget - The content that will be appended to the widgets when they are |
|---|
| 458 | * displayed. |
|---|
| 459 | * before_title - The content that will be prepended to the title when displayed. |
|---|
| 460 | * after_title - the content that will be appended to the title when displayed. |
|---|
| 461 | * |
|---|
| 462 | * <em>Content</em> is assumed to be HTML and should be formatted as such, but |
|---|
| 463 | * doesn't have to be. |
|---|
| 464 | * |
|---|
| 465 | * @since 2.2.0 |
|---|
| 466 | * @uses $wp_registered_sidebars Stores the new sidebar in this array by sidebar ID. |
|---|
| 467 | * @uses parse_str() Converts a string to an array to be used in the rest of the function. |
|---|
| 468 | * @usedby register_sidebars() |
|---|
| 469 | * |
|---|
| 470 | * @param string|array $args Builds Sidebar based off of 'name' and 'id' values |
|---|
| 471 | * @return string The sidebar id that was added. |
|---|
| 472 | */ |
|---|
| 473 | function register_sidebar($args = array()) { |
|---|
| 474 | global $wp_registered_sidebars; |
|---|
| 475 | |
|---|
| 476 | if ( is_string($args) ) |
|---|
| 477 | parse_str($args, $args); |
|---|
| 478 | |
|---|
| 479 | $i = count($wp_registered_sidebars) + 1; |
|---|
| 480 | |
|---|
| 481 | $defaults = array( |
|---|
| 482 | 'name' => sprintf(__('Sidebar %d'), $i ), |
|---|
| 483 | 'id' => "sidebar-$i", |
|---|
| 484 | 'before_widget' => '<li id="%1$s" class="widget %2$s">', |
|---|
| 485 | 'after_widget' => "</li>\n", |
|---|
| 486 | 'before_title' => '<h2 class="widgettitle">', |
|---|
| 487 | 'after_title' => "</h2>\n", |
|---|
| 488 | ); |
|---|
| 489 | |
|---|
| 490 | $sidebar = array_merge($defaults, (array) $args); |
|---|
| 491 | |
|---|
| 492 | $wp_registered_sidebars[$sidebar['id']] = $sidebar; |
|---|
| 493 | |
|---|
| 494 | return $sidebar['id']; |
|---|
| 495 | } |
|---|
| 496 | |
|---|
| 497 | /** |
|---|
| 498 | * Removes a sidebar from the list. |
|---|
| 499 | * |
|---|
| 500 | * @since 2.2.0 |
|---|
| 501 | * |
|---|
| 502 | * @uses $wp_registered_sidebars Stores the new sidebar in this array by sidebar ID. |
|---|
| 503 | * |
|---|
| 504 | * @param string $name The ID of the sidebar when it was added. |
|---|
| 505 | */ |
|---|
| 506 | function unregister_sidebar( $name ) { |
|---|
| 507 | global $wp_registered_sidebars; |
|---|
| 508 | |
|---|
| 509 | if ( isset( $wp_registered_sidebars[$name] ) ) |
|---|
| 510 | unset( $wp_registered_sidebars[$name] ); |
|---|
| 511 | } |
|---|
| 512 | |
|---|
| 513 | /** |
|---|
| 514 | * Register widget for use in sidebars. |
|---|
| 515 | * |
|---|
| 516 | * The default widget option is 'classname' that can be override. |
|---|
| 517 | * |
|---|
| 518 | * The function can also be used to unregister widgets when $output_callback |
|---|
| 519 | * parameter is an empty string. |
|---|
| 520 | * |
|---|
| 521 | * @since 2.2.0 |
|---|
| 522 | * |
|---|
| 523 | * @uses $wp_registered_widgets Uses stored registered widgets. |
|---|
| 524 | * @uses $wp_register_widget_defaults Retrieves widget defaults. |
|---|
| 525 | * |
|---|
| 526 | * @param int|string $id Widget ID. |
|---|
| 527 | * @param string $name Widget display title. |
|---|
| 528 | * @param callback $output_callback Run when widget is called. |
|---|
| 529 | * @param array|string Optional. $options Widget Options. |
|---|
| 530 | * @param mixed $params,... Widget parameters to add to widget. |
|---|
| 531 | * @return null Will return if $output_callback is empty after removing widget. |
|---|
| 532 | */ |
|---|
| 533 | function wp_register_sidebar_widget($id, $name, $output_callback, $options = array()) { |
|---|
| 534 | global $wp_registered_widgets; |
|---|
| 535 | |
|---|
| 536 | $id = strtolower($id); |
|---|
| 537 | |
|---|
| 538 | if ( empty($output_callback) ) { |
|---|
| 539 | unset($wp_registered_widgets[$id]); |
|---|
| 540 | return; |
|---|
| 541 | } |
|---|
| 542 | |
|---|
| 543 | $defaults = array('classname' => $output_callback); |
|---|
| 544 | $options = wp_parse_args($options, $defaults); |
|---|
| 545 | $widget = array( |
|---|
| 546 | 'name' => $name, |
|---|
| 547 | 'id' => $id, |
|---|
| 548 | 'callback' => $output_callback, |
|---|
| 549 | 'params' => array_slice(func_get_args(), 4) |
|---|
| 550 | ); |
|---|
| 551 | $widget = array_merge($widget, $options); |
|---|
| 552 | |
|---|
| 553 | if ( is_callable($output_callback) && ( !isset($wp_registered_widgets[$id]) || did_action( 'widgets_init' ) ) ) |
|---|
| 554 | $wp_registered_widgets[$id] = $widget; |
|---|
| 555 | } |
|---|
| 556 | |
|---|
| 557 | /** |
|---|
| 558 | * Retrieve description for widget. |
|---|
| 559 | * |
|---|
| 560 | * When registering widgets, the options can also include 'description' that |
|---|
| 561 | * describes the widget for display on the widget administration panel or |
|---|
| 562 | * in the theme. |
|---|
| 563 | * |
|---|
| 564 | * @since 2.5.0 |
|---|
| 565 | * |
|---|
| 566 | * @param int|string $id Widget ID. |
|---|
| 567 | * @return string Widget description, if available. Null on failure to retrieve description. |
|---|
| 568 | */ |
|---|
| 569 | function wp_widget_description( $id ) { |
|---|
| 570 | if ( !is_scalar($id) ) |
|---|
| 571 | return; |
|---|
| 572 | |
|---|
| 573 | global $wp_registered_widgets; |
|---|
| 574 | |
|---|
| 575 | if ( isset($wp_registered_widgets[$id]['description']) ) |
|---|
| 576 | return wp_specialchars( $wp_registered_widgets[$id]['description'] ); |
|---|
| 577 | } |
|---|
| 578 | |
|---|
| 579 | /** |
|---|
| 580 | * Remove widget from sidebar. |
|---|
| 581 | * |
|---|
| 582 | * @since 2.2.0 |
|---|
| 583 | * |
|---|
| 584 | * @param int|string $id Widget ID. |
|---|
| 585 | */ |
|---|
| 586 | function wp_unregister_sidebar_widget($id) { |
|---|
| 587 | wp_register_sidebar_widget($id, '', ''); |
|---|
| 588 | wp_unregister_widget_control($id); |
|---|
| 589 | } |
|---|
| 590 | |
|---|
| 591 | /** |
|---|
| 592 | * Registers widget control callback for customizing options. |
|---|
| 593 | * |
|---|
| 594 | * The options contains the 'height', 'width', and 'id_base' keys. The 'height' |
|---|
| 595 | * option is never used. The 'width' option is the width of the fully expanded |
|---|
| 596 | * control form, but try hard to use the default width. The 'id_base' is for |
|---|
| 597 | * multi-widgets (widgets which allow multiple instances such as the text |
|---|
| 598 | * widget), an id_base must be provided. The widget id will end up looking like |
|---|
| 599 | * {$id_base}-{$unique_number}. |
|---|
| 600 | * |
|---|
| 601 | * @since 2.2.0 |
|---|
| 602 | * |
|---|
| 603 | * @param int|string $id Sidebar ID. |
|---|
| 604 | * @param string $name Sidebar display name. |
|---|
| 605 | * @param callback $control_callback Run when sidebar is displayed. |
|---|
| 606 | * @param array|string $options Optional. Widget options. See above long description. |
|---|
| 607 | * @param mixed $params,... Optional. Additional parameters to add to widget. |
|---|
| 608 | */ |
|---|
| 609 | function wp_register_widget_control($id, $name, $control_callback, $options = array()) { |
|---|
| 610 | global $wp_registered_widget_controls, $wp_registered_widget_updates; |
|---|
| 611 | |
|---|
| 612 | $id = strtolower($id); |
|---|
| 613 | $update_id = preg_replace( '/-[0-9]+$/', '', $id ); |
|---|
| 614 | |
|---|
| 615 | if ( empty($control_callback) ) { |
|---|
| 616 | unset($wp_registered_widget_controls[$id]); |
|---|
| 617 | unset($wp_registered_widget_updates[$update_id]); |
|---|
| 618 | return; |
|---|
| 619 | } |
|---|
| 620 | |
|---|
| 621 | if ( isset($wp_registered_widget_controls[$id]) && !did_action( 'widgets_init' ) ) |
|---|
| 622 | return; |
|---|
| 623 | |
|---|
| 624 | $defaults = array('width' => 250, 'height' => 200 ); // height is never used |
|---|
| 625 | $options = wp_parse_args($options, $defaults); |
|---|
| 626 | $options['width'] = (int) $options['width']; |
|---|
| 627 | $options['height'] = (int) $options['height']; |
|---|
| 628 | |
|---|
| 629 | $widget = array( |
|---|
| 630 | 'name' => $name, |
|---|
| 631 | 'id' => $id, |
|---|
| 632 | 'callback' => $control_callback, |
|---|
| 633 | 'params' => array_slice(func_get_args(), 4) |
|---|
| 634 | ); |
|---|
| 635 | $widget = array_merge($widget, $options); |
|---|
| 636 | |
|---|
| 637 | $wp_registered_widget_controls[$id] = $widget; |
|---|
| 638 | |
|---|
| 639 | if ( isset($wp_registered_widget_updates[$update_id]) ) |
|---|
| 640 | return; |
|---|
| 641 | |
|---|
| 642 | if ( isset($widget['params'][0]['number']) ) |
|---|
| 643 | $widget['params'][0]['number'] = -1; |
|---|
| 644 | |
|---|
| 645 | unset($widget['width'], $widget['height'], $widget['name'], $widget['id']); |
|---|
| 646 | $wp_registered_widget_updates[$update_id] = $widget; |
|---|
| 647 | } |
|---|
| 648 | |
|---|
| 649 | function _register_widget_update_callback($id_base, $update_callback, $options = array()) { |
|---|
| 650 | global $wp_registered_widget_updates; |
|---|
| 651 | |
|---|
| 652 | if ( isset($wp_registered_widget_updates[$id_base]) ) { |
|---|
| 653 | if ( empty($update_callback) ) |
|---|
| 654 | unset($wp_registered_widget_updates[$id_base]); |
|---|
| 655 | return; |
|---|
| 656 | } |
|---|
| 657 | |
|---|
| 658 | $widget = array( |
|---|
| 659 | 'callback' => $update_callback, |
|---|
| 660 | 'params' => array_slice(func_get_args(), 3) |
|---|
| 661 | ); |
|---|
| 662 | |
|---|
| 663 | $widget = array_merge($widget, $options); |
|---|
| 664 | $wp_registered_widget_updates[$id_base] = $widget; |
|---|
| 665 | } |
|---|
| 666 | |
|---|
| 667 | function _register_widget_form_callback($id, $name, $form_callback, $options = array()) { |
|---|
| 668 | global $wp_registered_widget_controls; |
|---|
| 669 | |
|---|
| 670 | $id = strtolower($id); |
|---|
| 671 | |
|---|
| 672 | if ( empty($form_callback) ) { |
|---|
| 673 | unset($wp_registered_widget_controls[$id]); |
|---|
| 674 | return; |
|---|
| 675 | } |
|---|
| 676 | |
|---|
| 677 | if ( isset($wp_registered_widget_controls[$id]) && !did_action( 'widgets_init' ) ) |
|---|
| 678 | return; |
|---|
| 679 | |
|---|
| 680 | $defaults = array('width' => 250, 'height' => 200 ); |
|---|
| 681 | $options = wp_parse_args($options, $defaults); |
|---|
| 682 | $options['width'] = (int) $options['width']; |
|---|
| 683 | $options['height'] = (int) $options['height']; |
|---|
| 684 | |
|---|
| 685 | $widget = array( |
|---|
| 686 | 'name' => $name, |
|---|
| 687 | 'id' => $id, |
|---|
| 688 | 'callback' => $form_callback, |
|---|
| 689 | 'params' => array_slice(func_get_args(), 4) |
|---|
| 690 | ); |
|---|
| 691 | $widget = array_merge($widget, $options); |
|---|
| 692 | |
|---|
| 693 | $wp_registered_widget_controls[$id] = $widget; |
|---|
| 694 | } |
|---|
| 695 | |
|---|
| 696 | /** |
|---|
| 697 | * Remove control callback for widget. |
|---|
| 698 | * |
|---|
| 699 | * @since 2.2.0 |
|---|
| 700 | * @uses wp_register_widget_control() Unregisters by using empty callback. |
|---|
| 701 | * |
|---|
| 702 | * @param int|string $id Widget ID. |
|---|
| 703 | */ |
|---|
| 704 | function wp_unregister_widget_control($id) { |
|---|
| 705 | return wp_register_widget_control($id, '', ''); |
|---|
| 706 | } |
|---|
| 707 | |
|---|
| 708 | /** |
|---|
| 709 | * Display dynamic sidebar. |
|---|
| 710 | * |
|---|
| 711 | * By default it displays the default sidebar or 'sidebar-1'. The 'sidebar-1' is |
|---|
| 712 | * not named by the theme, the actual name is '1', but 'sidebar-' is added to |
|---|
| 713 | * the registered sidebars for the name. If you named your sidebar 'after-post', |
|---|
| 714 | * then the parameter $index will still be 'after-post', but the lookup will be |
|---|
| 715 | * for 'sidebar-after-post'. |
|---|
| 716 | * |
|---|
| 717 | * It is confusing for the $index parameter, but just know that it should just |
|---|
| 718 | * work. When you register the sidebar in the theme, you will use the same name |
|---|
| 719 | * for this function or "Pay no heed to the man behind the curtain." Just accept |
|---|
| 720 | * it as an oddity of WordPress sidebar register and display. |
|---|
| 721 | * |
|---|
| 722 | * @since 2.2.0 |
|---|
| 723 | * |
|---|
| 724 | * @param int|string $index Optional, default is 1. Name or ID of dynamic sidebar. |
|---|
| 725 | * @return bool True, if widget sidebar was found and called. False if not found or not called. |
|---|
| 726 | */ |
|---|
| 727 | function dynamic_sidebar($index = 1) { |
|---|
| 728 | global $wp_registered_sidebars, $wp_registered_widgets; |
|---|
| 729 | |
|---|
| 730 | if ( is_int($index) ) { |
|---|
| 731 | $index = "sidebar-$index"; |
|---|
| 732 | } else { |
|---|
| 733 | $index = sanitize_title($index); |
|---|
| 734 | foreach ( (array) $wp_registered_sidebars as $key => $value ) { |
|---|
| 735 | if ( sanitize_title($value['name']) == $index ) { |
|---|
| 736 | $index = $key; |
|---|
| 737 | break; |
|---|
| 738 | } |
|---|
| 739 | } |
|---|
| 740 | } |
|---|
| 741 | |
|---|
| 742 | $sidebars_widgets = wp_get_sidebars_widgets(); |
|---|
| 743 | |
|---|
| 744 | if ( empty($wp_registered_sidebars[$index]) || !array_key_exists($index, $sidebars_widgets) || !is_array($sidebars_widgets[$index]) || empty($sidebars_widgets[$index]) ) |
|---|
| 745 | return false; |
|---|
| 746 | |
|---|
| 747 | $sidebar = $wp_registered_sidebars[$index]; |
|---|
| 748 | |
|---|
| 749 | $did_one = false; |
|---|
| 750 | foreach ( (array) $sidebars_widgets[$index] as $id ) { |
|---|
| 751 | $params = array_merge( |
|---|
| 752 | array( array_merge( $sidebar, array('widget_id' => $id, 'widget_name' => $wp_registered_widgets[$id]['name']) ) ), |
|---|
| 753 | (array) $wp_registered_widgets[$id]['params'] |
|---|
| 754 | ); |
|---|
| 755 | |
|---|
| 756 | // Substitute HTML id and class attributes into before_widget |
|---|
| 757 | $classname_ = ''; |
|---|
| 758 | foreach ( (array) $wp_registered_widgets[$id]['classname'] as $cn ) { |
|---|
| 759 | if ( is_string($cn) ) |
|---|
| 760 | $classname_ .= '_' . $cn; |
|---|
| 761 | elseif ( is_object($cn) ) |
|---|
| 762 | $classname_ .= '_' . get_class($cn); |
|---|
| 763 | } |
|---|
| 764 | $classname_ = ltrim($classname_, '_'); |
|---|
| 765 | $params[0]['before_widget'] = sprintf($params[0]['before_widget'], $id, $classname_); |
|---|
| 766 | |
|---|
| 767 | $params = apply_filters( 'dynamic_sidebar_params', $params ); |
|---|
| 768 | |
|---|
| 769 | $callback = $wp_registered_widgets[$id]['callback']; |
|---|
| 770 | |
|---|
| 771 | if ( is_callable($callback) ) { |
|---|
| 772 | call_user_func_array($callback, $params); |
|---|
| 773 | $did_one = true; |
|---|
| 774 | } |
|---|
| 775 | } |
|---|
| 776 | |
|---|
| 777 | return $did_one; |
|---|
| 778 | } |
|---|
| 779 | |
|---|
| 780 | /** |
|---|
| 781 | * Whether widget is registered using callback with widget ID. |
|---|
| 782 | * |
|---|
| 783 | * 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 is found. |
|---|
| 784 | * With the $widget_id parameter, returns the ID of the sidebar in which the widget with that callback AND that ID is found. |
|---|
| 785 | * |
|---|
| 786 | * @since 2.2.0 |
|---|
| 787 | * |
|---|
| 788 | * @param callback $callback Widget callback to check. |
|---|
| 789 | * @param int $widget_id Optional, but needed for checking. Widget ID. |
|---|
| 790 | /* @return mixed false if widget is not active or id of sidebar in which the widget is active. |
|---|
| 791 | */ |
|---|
| 792 | function is_active_widget($callback, $widget_id = false) { |
|---|
| 793 | global $wp_registered_widgets; |
|---|
| 794 | |
|---|
| 795 | $sidebars_widgets = wp_get_sidebars_widgets(false); |
|---|
| 796 | |
|---|
| 797 | if ( is_array($sidebars_widgets) ) foreach ( $sidebars_widgets as $sidebar => $widgets ) |
|---|
| 798 | if ( is_array($widgets) ) foreach ( $widgets as $widget ) |
|---|
| 799 | if ( isset($wp_registered_widgets[$widget]['callback']) && $wp_registered_widgets[$widget]['callback'] == $callback ) |
|---|
| 800 | if ( !$widget_id || $widget_id == $wp_registered_widgets[$widget]['id'] ) |
|---|
| 801 | return $sidebar; |
|---|
| 802 | |
|---|
| 803 | |
|---|
| 804 | return false; |
|---|
| 805 | } |
|---|
| 806 | |
|---|
| 807 | /** |
|---|
| 808 | * Whether the dynamic sidebar is enabled and used by theme. |
|---|
| 809 | * |
|---|
| 810 | * @since 2.2.0 |
|---|
| 811 | * |
|---|
| 812 | * @return bool True, if using widgets. False, if not using widgets. |
|---|
| 813 | */ |
|---|
| 814 | function is_dynamic_sidebar() { |
|---|
| 815 | global $wp_registered_widgets, $wp_registered_sidebars; |
|---|
| 816 | $sidebars_widgets = get_option('sidebars_widgets'); |
|---|
| 817 | foreach ( (array) $wp_registered_sidebars as $index => $sidebar ) { |
|---|
| 818 | if ( count($sidebars_widgets[$index]) ) { |
|---|
| 819 | foreach ( (array) $sidebars_widgets[$index] as $widget ) |
|---|
| 820 | if ( array_key_exists($widget, $wp_registered_widgets) ) |
|---|
| 821 | return true; |
|---|
| 822 | } |
|---|
| 823 | } |
|---|
| 824 | return false; |
|---|
| 825 | } |
|---|
| 826 | |
|---|
| 827 | /* Internal Functions */ |
|---|
| 828 | |
|---|
| 829 | /** |
|---|
| 830 | * Retrieve full list of sidebars and their widgets. |
|---|
| 831 | * |
|---|
| 832 | * Will upgrade sidebar widget list, if needed. Will also save updated list, if |
|---|
| 833 | * needed. |
|---|
| 834 | * |
|---|
| 835 | * @since 2.2.0 |
|---|
| 836 | * @access private |
|---|
| 837 | * |
|---|
| 838 | * @param bool $update Optional, default is true. Whether to save upgrade of widget array list. |
|---|
| 839 | * @return array Upgraded list of widgets to version 2 array format. |
|---|
| 840 | */ |
|---|
| 841 | function wp_get_sidebars_widgets($update = true) { |
|---|
| 842 | global $wp_registered_widgets, $wp_registered_sidebars; |
|---|
| 843 | |
|---|
| 844 | $sidebars_widgets = get_option('sidebars_widgets', array()); |
|---|
| 845 | $_sidebars_widgets = array(); |
|---|
| 846 | |
|---|
| 847 | if ( !isset($sidebars_widgets['array_version']) ) |
|---|
| 848 | $sidebars_widgets['array_version'] = 1; |
|---|
| 849 | |
|---|
| 850 | switch ( $sidebars_widgets['array_version'] ) { |
|---|
| 851 | case 1 : |
|---|
| 852 | foreach ( (array) $sidebars_widgets as $index => $sidebar ) |
|---|
| 853 | if ( is_array($sidebar) ) |
|---|
| 854 | foreach ( (array) $sidebar as $i => $name ) { |
|---|
| 855 | $id = strtolower($name); |
|---|
| 856 | if ( isset($wp_registered_widgets[$id]) ) { |
|---|
| 857 | $_sidebars_widgets[$index][$i] = $id; |
|---|
| 858 | continue; |
|---|
| 859 | } |
|---|
| 860 | $id = sanitize_title($name); |
|---|
| 861 | if ( isset($wp_registered_widgets[$id]) ) { |
|---|
| 862 | $_sidebars_widgets[$index][$i] = $id; |
|---|
| 863 | continue; |
|---|
| 864 | } |
|---|
| 865 | |
|---|
| 866 | $found = false; |
|---|
| 867 | |
|---|
| 868 | foreach ( $wp_registered_widgets as $widget_id => $widget ) { |
|---|
| 869 | if ( strtolower($widget['name']) == strtolower($name) ) { |
|---|
| 870 | $_sidebars_widgets[$index][$i] = $widget['id']; |
|---|
| 871 | $found = true; |
|---|
| 872 | break; |
|---|
| 873 | } elseif ( sanitize_title($widget['name']) == sanitize_title($name) ) { |
|---|
| 874 | $_sidebars_widgets[$index][$i] = $widget['id']; |
|---|
| 875 | $found = true; |
|---|
| 876 | break; |
|---|
| 877 | } |
|---|
| 878 | } |
|---|
| 879 | |
|---|
| 880 | if ( $found ) |
|---|
| 881 | continue; |
|---|
| 882 | |
|---|
| 883 | unset($_sidebars_widgets[$index][$i]); |
|---|
| 884 | } |
|---|
| 885 | $_sidebars_widgets['array_version'] = 2; |
|---|
| 886 | $sidebars_widgets = $_sidebars_widgets; |
|---|
| 887 | unset($_sidebars_widgets); |
|---|
| 888 | |
|---|
| 889 | case 2 : |
|---|
| 890 | $sidebars = array_keys( $wp_registered_sidebars ); |
|---|
| 891 | if ( !empty( $sidebars ) ) { |
|---|
| 892 | // Move the known-good ones first |
|---|
| 893 | foreach ( (array) $sidebars as $id ) { |
|---|
| 894 | if ( array_key_exists( $id, $sidebars_widgets ) ) { |
|---|
| 895 | $_sidebars_widgets[$id] = $sidebars_widgets[$id]; |
|---|
| 896 | unset($sidebars_widgets[$id], $sidebars[$id]); |
|---|
| 897 | } |
|---|
| 898 | } |
|---|
| 899 | |
|---|
| 900 | // Assign to each unmatched registered sidebar the first available orphan |
|---|
| 901 | unset( $sidebars_widgets[ 'array_version' ] ); |
|---|
| 902 | while ( ( $sidebar = array_shift( $sidebars ) ) && $widgets = array_shift( $sidebars_widgets ) ) |
|---|
| 903 | $_sidebars_widgets[ $sidebar ] = $widgets; |
|---|
| 904 | |
|---|
| 905 | $_sidebars_widgets['array_version'] = 3; |
|---|
| 906 | $sidebars_widgets = $_sidebars_widgets; |
|---|
| 907 | unset($_sidebars_widgets); |
|---|
| 908 | } |
|---|
| 909 | |
|---|
| 910 | if ( $update ) |
|---|
| 911 | update_option('sidebars_widgets', $sidebars_widgets); |
|---|
| 912 | } |
|---|
| 913 | |
|---|
| 914 | if ( isset($sidebars_widgets['array_version']) ) |
|---|
| 915 | unset($sidebars_widgets['array_version']); |
|---|
| 916 | |
|---|
| 917 | $sidebars_widgets = apply_filters('sidebars_widgets', $sidebars_widgets); |
|---|
| 918 | return $sidebars_widgets; |
|---|
| 919 | } |
|---|
| 920 | |
|---|
| 921 | /** |
|---|
| 922 | * Set the sidebar widget option to update sidebars. |
|---|
| 923 | * |
|---|
| 924 | * @since 2.2.0 |
|---|
| 925 | * @access private |
|---|
| 926 | * |
|---|
| 927 | * @param array $sidebars_widgets Sidebar widgets and their settings. |
|---|
| 928 | */ |
|---|
| 929 | function wp_set_sidebars_widgets( $sidebars_widgets ) { |
|---|
| 930 | if ( !isset( $sidebars_widgets['array_version'] ) ) |
|---|
| 931 | $sidebars_widgets['array_version'] = 3; |
|---|
| 932 | update_option( 'sidebars_widgets', $sidebars_widgets ); |
|---|
| 933 | } |
|---|
| 934 | |
|---|
| 935 | /** |
|---|
| 936 | * Retrieve default registered sidebars list. |
|---|
| 937 | * |
|---|
| 938 | * @since 2.2.0 |
|---|
| 939 | * @access private |
|---|
| 940 | * |
|---|
| 941 | * @return array |
|---|
| 942 | */ |
|---|
| 943 | function wp_get_widget_defaults() { |
|---|
| 944 | global $wp_registered_sidebars; |
|---|
| 945 | |
|---|
| 946 | $defaults = array(); |
|---|
| 947 | |
|---|
| 948 | foreach ( (array) $wp_registered_sidebars as $index => $sidebar ) |
|---|
| 949 | $defaults[$index] = array(); |
|---|
| 950 | |
|---|
| 951 | return $defaults; |
|---|
| 952 | } |
|---|
| 953 | |
|---|
| 954 | /** |
|---|
| 955 | * Convert the widget settings from single to multi-widget format. |
|---|
| 956 | * |
|---|
| 957 | * @since 2.8.0 |
|---|
| 958 | * |
|---|
| 959 | * @return array |
|---|
| 960 | */ |
|---|
| 961 | function wp_convert_widget_settings($base_name, $option_name, $settings) { |
|---|
| 962 | // This test may need expanding. |
|---|
| 963 | $single = false; |
|---|
| 964 | if ( empty($settings) ) { |
|---|
| 965 | $single = true; |
|---|
| 966 | } else { |
|---|
| 967 | foreach ( array_keys($settings) as $number ) { |
|---|
| 968 | if ( !is_numeric($number) ) { |
|---|
| 969 | $single = true; |
|---|
| 970 | break; |
|---|
| 971 | } |
|---|
| 972 | } |
|---|
| 973 | } |
|---|
| 974 | |
|---|
| 975 | if ( $single ) { |
|---|
| 976 | $settings = array( 2 => $settings ); |
|---|
| 977 | |
|---|
| 978 | $sidebars_widgets = get_option('sidebars_widgets'); |
|---|
| 979 | foreach ( (array) $sidebars_widgets as $index => $sidebar ) { |
|---|
| 980 | if ( is_array($sidebar) ) { |
|---|
| 981 | foreach ( $sidebar as $i => $name ) { |
|---|
| 982 | if ( $base_name == $name ) { |
|---|
| 983 | $sidebars_widgets[$index][$i] = "$name-2"; |
|---|
| 984 | break 2; |
|---|
| 985 | } |
|---|
| 986 | } |
|---|
| 987 | } |
|---|
| 988 | } |
|---|
| 989 | |
|---|
| 990 | update_option('sidebars_widgets', $sidebars_widgets); |
|---|
| 991 | } |
|---|
| 992 | |
|---|
| 993 | $settings['_multiwidget'] = 1; |
|---|
| 994 | update_option( $option_name, $settings ); |
|---|
| 995 | |
|---|
| 996 | return $settings; |
|---|
| 997 | } |
|---|
| 998 | |
|---|
| 999 | /** |
|---|
| 1000 | * Deprecated API |
|---|
| 1001 | */ |
|---|
| 1002 | |
|---|
| 1003 | /** |
|---|
| 1004 | * Register widget for sidebar with backwards compatibility. |
|---|
| 1005 | * |
|---|
| 1006 | * Allows $name to be an array that accepts either three elements to grab the |
|---|
| 1007 | * first element and the third for the name or just uses the first element of |
|---|
| 1008 | * the array for the name. |
|---|
| 1009 | * |
|---|
| 1010 | * Passes to {@link wp_register_sidebar_widget()} after argument list and |
|---|
| 1011 | * backwards compatibility is complete. |
|---|
| 1012 | * |
|---|
| 1013 | * @since 2.2.0 |
|---|
| 1014 | * @uses wp_register_sidebar_widget() Passes the compiled arguments. |
|---|
| 1015 | * |
|---|
| 1016 | * @param string|int $name Widget ID. |
|---|
| 1017 | * @param callback $output_callback Run when widget is called. |
|---|
| 1018 | * @param string $classname Classname widget option. |
|---|
| 1019 | * @param mixed $params,... Widget parameters. |
|---|
| 1020 | */ |
|---|
| 1021 | function register_sidebar_widget($name, $output_callback, $classname = '') { |
|---|
| 1022 | // Compat |
|---|
| 1023 | if ( is_array($name) ) { |
|---|
| 1024 | if ( count($name) == 3 ) |
|---|
| 1025 | $name = sprintf($name[0], $name[2]); |
|---|
| 1026 | else |
|---|
| 1027 | $name = $name[0]; |
|---|
| 1028 | } |
|---|
| 1029 | |
|---|
| 1030 | $id = sanitize_title($name); |
|---|
| 1031 | $options = array(); |
|---|
| 1032 | if ( !empty($classname) && is_string($classname) ) |
|---|
| 1033 | $options['classname'] = $classname; |
|---|
| 1034 | $params = array_slice(func_get_args(), 2); |
|---|
| 1035 | $args = array($id, $name, $output_callback, $options); |
|---|
| 1036 | if ( !empty($params) ) |
|---|
| 1037 | $args = array_merge($args, $params); |
|---|
| 1038 | |
|---|
| 1039 | call_user_func_array('wp_register_sidebar_widget', $args); |
|---|
| 1040 | } |
|---|
| 1041 | |
|---|
| 1042 | /** |
|---|
| 1043 | * Alias of {@link wp_unregister_sidebar_widget()}. |
|---|
| 1044 | * |
|---|
| 1045 | * @see wp_unregister_sidebar_widget() |
|---|
| 1046 | * |
|---|
| 1047 | * @since 2.2.0 |
|---|
| 1048 | * |
|---|
| 1049 | * @param int|string $id Widget ID. |
|---|
| 1050 | */ |
|---|
| 1051 | function unregister_sidebar_widget($id) { |
|---|
| 1052 | return wp_unregister_sidebar_widget($id); |
|---|
| 1053 | } |
|---|
| 1054 | |
|---|
| 1055 | /** |
|---|
| 1056 | * Registers widget control callback for customizing options. |
|---|
| 1057 | * |
|---|
| 1058 | * Allows $name to be an array that accepts either three elements to grab the |
|---|
| 1059 | * first element and the third for the name or just uses the first element of |
|---|
| 1060 | * the array for the name. |
|---|
| 1061 | * |
|---|
| 1062 | * Passes to {@link wp_register_widget_control()} after the argument list has |
|---|
| 1063 | * been compiled. |
|---|
| 1064 | * |
|---|
| 1065 | * @since 2.2.0 |
|---|
| 1066 | * |
|---|
| 1067 | * @param int|string $name Sidebar ID. |
|---|
| 1068 | * @param callback $control_callback Widget control callback to display and process form. |
|---|
| 1069 | * @param int $width Widget width. |
|---|
| 1070 | * @param int $height Widget height. |
|---|
| 1071 | */ |
|---|
| 1072 | function register_widget_control($name, $control_callback, $width = '', $height = '') { |
|---|
| 1073 | // Compat |
|---|
| 1074 | if ( is_array($name) ) { |
|---|
| 1075 | if ( count($name) == 3 ) |
|---|
| 1076 | $name = sprintf($name[0], $name[2]); |
|---|
| 1077 | else |
|---|
| 1078 | $name = $name[0]; |
|---|
| 1079 | } |
|---|
| 1080 | |
|---|
| 1081 | $id = sanitize_title($name); |
|---|
| 1082 | $options = array(); |
|---|
| 1083 | if ( !empty($width) ) |
|---|
| 1084 | $options['width'] = $width; |
|---|
| 1085 | if ( !empty($height) ) |
|---|
| 1086 | $options['height'] = $height; |
|---|
| 1087 | $params = array_slice(func_get_args(), 4); |
|---|
| 1088 | $args = array($id, $name, $control_callback, $options); |
|---|
| 1089 | if ( !empty($params) ) |
|---|
| 1090 | $args = array_merge($args, $params); |
|---|
| 1091 | |
|---|
| 1092 | call_user_func_array('wp_register_widget_control', $args); |
|---|
| 1093 | } |
|---|
| 1094 | |
|---|
| 1095 | /** |
|---|
| 1096 | * Alias of {@link wp_unregister_widget_control()}. |
|---|
| 1097 | * |
|---|
| 1098 | * @since 2.2.0 |
|---|
| 1099 | * @see wp_unregister_widget_control() |
|---|
| 1100 | * |
|---|
| 1101 | * @param int|string $id Widget ID. |
|---|
| 1102 | */ |
|---|
| 1103 | function unregister_widget_control($id) { |
|---|
| 1104 | return wp_unregister_widget_control($id); |
|---|
| 1105 | } |
|---|