| Current File : /home/kelaby89/muzza.fit/wp-content/plugins/widgets-in-menu/classes/class-yawp-wim.php |
<?php
/**
* Contains the main plugin class
*/
// prevent direct access
defined( 'ABSPATH' ) || exit;
if ( ! class_exists( 'YAWP_WIM' ) ) {
/**
* Main Plugin Class
*/
class YAWP_WIM {
/**
*
* @var string A string prefix for html element attributes
*/
public $attr_prefix;
/**
* Hooks to the necessary actions and filters
*/
public function hook() {
// initialise translations
add_action( 'plugins_loaded', array( $this, 'localise' ) );
// hook the sidebar registration
add_action( 'widgets_init', array( $this, 'sidebar' ) );
// hook into the edit menus admin screen
add_action( 'admin_init', array( $this, 'menu_setup' ) );
// add our custom js on edit menu screen
add_action( 'admin_enqueue_scripts', array( $this, 'enqueue' ) );
// filter the menu item display on edit screen
add_filter( 'wp_setup_nav_menu_item', array( $this, 'label' ), 10, 1 );
// replace the default menu add ajax
add_action( 'admin_init', array($this, 'filter_ajax'));
}
/**
* Localise the plugin
*/
public function localise() {
load_plugin_textdomain(
'yawp-wim', false, plugin_dir_path( __FILE__ ) . '/languages'
);
}
/**
* Regsiter a custom widget area for our widgets
*/
public function sidebar() {
register_sidebar( array(
'name' => __( 'Widgets in Menu', 'yawp-wim' ),
'id' => YAWP_WIM_PREFIX,
"before_widget" => '<div id="%1$s" class="' . YAWP_WIM_PREFIX . '_widget %2$s">',
"after_widget" => '</div>',
'description' => __( 'Widgets in this area will be shown on the edit menu screen.', 'yawp-wim' ),
'before_title' => '<span class="' . YAWP_WIM_PREFIX . '_title">',
'after_title' => '</span>'
) );
}
/**
* Setup our metabox on the edit menu screen
*/
public function menu_setup() {
add_meta_box(
'add-widget-section', __( 'Widgets', 'yawp-wim' ), array( $this, 'meta_box' ), 'nav-menus', 'side', 'default'
);
}
/**
* Add a custom metabox on edit menu screen for widgets
*
* @global int $_nav_menu_placeholder A placeholder index for the menu item
* @global int|string $nav_menu_selected_id (id, name or slug) of the currently-selected menu
* @global array $wp_registered_widgets All registered widgets
* @global array $wp_registered_sidebars All registered sidebars
*/
public function meta_box() {
// initialise some global variables
global $_nav_menu_placeholder, $nav_menu_selected_id,
$wp_registered_widgets, $wp_registered_sidebars;
// initialise the output variable
$output = '';
// get all the sidebar widgets
$sidebars_widgets = wp_get_sidebars_widgets();
// we don't have widgets
if ( empty( $wp_registered_sidebars[ YAWP_WIM_PREFIX ] ) || empty( $sidebars_widgets[ YAWP_WIM_PREFIX ] ) || ! is_array( $sidebars_widgets[ YAWP_WIM_PREFIX ] ) ) {
// the default output
$no_widgets_output = '<p>';
$no_widgets_output .= sprintf( __( '<a href="%s">Please add a '
. 'widget</a> to the <em>Widgets in Menu</em> area', 'yawp-wim' ), admin_url( "widgets.php" ) );
$no_widgets_output .= '</p>';
/**
* Filters the html displayed if no widgets are present in the sidebar.
*
* @since 0.1.0
*
* @param string $no_widgets_output The default output
*/
$no_widgets_output = apply_filters( 'yawp_wim_no_widgets_message', $no_widgets_output );
// add to the final output
$output .= $no_widgets_output;
} else {
// we have widgets, so we'll output them in an unordered list,
// like wordpress does
$output .= '<ul>';
// loop through our widgets
foreach ( ( array ) $sidebars_widgets[ YAWP_WIM_PREFIX ] as $id ) {
// bail if not set
if ( ! isset( $wp_registered_widgets[ $id ] ) )
continue;
// figure the placeholder index
$_nav_menu_placeholder = 0 > $_nav_menu_placeholder ? $_nav_menu_placeholder - 1 : -1;
// this widget
$widget = $wp_registered_widgets[ $id ];
// the widget number (for eg, calendar-3, 3 it is)
$widget_num = $widget[ 'params' ][ 0 ][ "number" ];
// get the widget slug from the id
$widget_slug = rtrim( preg_replace( "|[0-9]+|i", "", $id ), '-' );
// get the widget's settings from the options table
$widget_saved = get_option( 'widget_' . $widget_slug, array() );
// get the title from the saved settings
$widget_title = (isset($widget_saved[ $widget_num ][ 'title' ])) ? $widget_saved[ $widget_num ][ 'title' ] : '';
// get the name
$widget_name = $widget[ 'name' ];
$widget_name .= (empty( $widget_title )) ? '' : ': ' . $widget_title;
// start the list item
$output .= '<li>';
$output .= '<label for="' . $id . '">';
// checkbox
$output .= '<input name="menu-item['
. $_nav_menu_placeholder . '][menu-item-object-id]" type="checkbox" value="'
. $widget_num . '" id="' . $id . '" class="menu-item-checkbox ' . $id . '">';
$output .= $widget_name;
$output .= '</label>';
// db-id is 0,will be created when the menu item is created in the db
$output .= '<input type="hidden" class="menu-item-db-id" name="menu-item['
. $_nav_menu_placeholder . '][menu-item-db-id]" value="0" />';
// object is our prefix
$output .= '<input type="hidden" class="menu-item-object" name="menu-item['
. $_nav_menu_placeholder . '][menu-item-object]" value="'
. YAWP_WIM_PREFIX . '" />';
// no parent-id
$output .= '<input type="hidden" class="menu-item-parent-id" name="menu-item['
. $_nav_menu_placeholder . '][menu-item-parent-id]" value="0" />';
// type is our prefix
$output .= '<input type="hidden" class="menu-item-type" name="menu-item['
. $_nav_menu_placeholder . '][menu-item-type]" value="' . YAWP_WIM_PREFIX . '" />';
// title
$output .= '<input type="hidden" class="menu-item-title" name="menu-item['
. $_nav_menu_placeholder . '][menu-item-title]" value="' . $widget_name . '" />';
// the empty stuff
$output .= '<input type="hidden" class="menu-item-url" name="menu-item['
. $_nav_menu_placeholder . '][menu-item-url]" value="" />';
$output .= '<input type="hidden" class="menu-item-target" name="menu-item['
. $_nav_menu_placeholder . '][menu-item-target]" value="" />';
$output .= '<input type="hidden" class="menu-item-attr_title" name="menu-item['
. $_nav_menu_placeholder . '][menu-item-attr_title]" value="" />';
$output .= '<input type="hidden" class="menu-item-classes" name="menu-item['
. $_nav_menu_placeholder . '][menu-item-classes]" value="" />';
// storing our id in xfn. could have been any of the above
$output .= '<input type="hidden" class="menu-item-xfn" name="menu-item['
. $_nav_menu_placeholder . '][menu-item-xfn]" value="' . $id . '" />';
$output .= '</li>';
}
$output .= '<p style="display:none;" class="msg-yawp_sim">';
$output .= __( 'Settings', 'yawp-wim' )
. ': '
. sprintf( '<a href="%s">', admin_url( "widgets.php" ) )
. __( 'Appearance', 'yawp-wim' )
. ' > '
. __( 'Widgets', 'yawp-wim' ) . '</a>';
$output .= '<p>';
$output .= '</ul>';
}
// submit button
?>
<div class="yawp_wimdiv" id="yawp_wimdiv">
<?php echo $output; ?>
<p class="button-controls">
<span class="add-to-menu">
<input type="submit"<?php wp_nav_menu_disabled_check( $nav_menu_selected_id ); ?> class="button-secondary submit-add-to-menu right" value="<?php esc_attr_e( 'Add to Menu' ); ?>" name="add-ya_wim-menu-item" id="submit-ya_wim" />
<span class="spinner"></span>
</span>
</p>
</div><!-- /.customlinkdiv -->
<?php
}
/**
* Removes default menu add function & replaces with custom
*
* @since 0.2.0
*/
public function filter_ajax(){
// add our own function
add_action('wp_ajax_add-menu-item', array($this, '_add_menu_item'), 0);
}
/**
* Ajax handler for adding a menu item. Replaces wp_ajax_add_menu_item
*
* @since 0.2.0
*/
public function _add_menu_item() {
// remove default WP function
// first extra line in the wp_ajax_add_menu_item clone that this method actually is :(
remove_action('wp_ajax_add-menu-item', 'wp_ajax_add_menu_item');
check_ajax_referer( 'add-menu_item', 'menu-settings-column-nonce' );
if ( ! current_user_can( 'edit_theme_options' ) )
wp_die( -1 );
require_once ABSPATH . 'wp-admin/includes/nav-menu.php';
// For performance reasons, we omit some object properties from the checklist.
// The following is a hacky way to restore them when adding non-custom items.
$menu_items_data = array();
foreach ( ( array ) $_POST[ 'menu-item' ] as $menu_item_data ) {
if (
! empty( $menu_item_data[ 'menu-item-type' ] ) &&
'custom' != $menu_item_data[ 'menu-item-type' ] &&
! empty( $menu_item_data[ 'menu-item-object-id' ]) &&
YAWP_WIM_PREFIX != $menu_item_data[ 'menu-item-type' ] // this is the second extra line
) {
switch ( $menu_item_data[ 'menu-item-type' ] ) {
case 'post_type' :
$_object = get_post( $menu_item_data[ 'menu-item-object-id' ] );
break;
case 'post_type_archive' :
$_object = get_post_type_object( $menu_item_data[ 'menu-item-object' ] );
break;
case 'taxonomy' :
$_object = get_term( $menu_item_data[ 'menu-item-object-id' ], $menu_item_data[ 'menu-item-object' ] );
break;
}
$_menu_items = array_map( 'wp_setup_nav_menu_item', array( $_object ) );
$_menu_item = reset( $_menu_items );
// Restore the missing menu item properties
$menu_item_data[ 'menu-item-description' ] = $_menu_item->description;
}
$menu_items_data[] = $menu_item_data;
}
$item_ids = wp_save_nav_menu_items( 0, $menu_items_data );
if ( is_wp_error( $item_ids ) )
wp_die( 0 );
$menu_items = array();
foreach ( ( array ) $item_ids as $menu_item_id ) {
$menu_obj = get_post( $menu_item_id );
if ( ! empty( $menu_obj->ID ) ) {
$menu_obj = wp_setup_nav_menu_item( $menu_obj );
$menu_obj->label = $menu_obj->title; // don't show "(pending)" in ajax-added items
$menu_items[] = $menu_obj;
}
}
/** This filter is documented in wp-admin/includes/nav-menu.php */
$walker_class_name = apply_filters( 'wp_edit_nav_menu_walker', 'Walker_Nav_Menu_Edit', $_POST[ 'menu' ] );
if ( ! class_exists( $walker_class_name ) )
wp_die( 0 );
if ( ! empty( $menu_items ) ) {
$args = array(
'after' => '',
'before' => '',
'link_after' => '',
'link_before' => '',
'walker' => new $walker_class_name,
);
echo walk_nav_menu_tree( $menu_items, 0, ( object ) $args );
}
wp_die();
}
/**
* Enqueue our js for hooking into wpNavMenu class
*
* @param string $hook A string to identify the current screen
* @return null
*/
public function enqueue( $hook ) {
// bail if not the edit menu screen
if ( 'nav-menus.php' != $hook ) {
return;
}
$min = '';
if ( ! WP_DEBUG ) {
$min = '.min';
}
wp_enqueue_script(
YAWP_WIM_PREFIX, YAWP_WIM_URL . "/js/yawp-wim{$min}.js", array( 'nav-menu' ), YAWP_WIM_VERSION
);
}
/**
* Changes the label from 'Custom' to 'Widget' on the individual menu item
*
* @param object $item The menu item
* @return object
*/
function label( $item ) {
if ( $item->object === YAWP_WIM_PREFIX ) {
// setup our label
$item->type_label = __( 'Widget', 'yawp-wim' );
}
return $item;
}
}
}