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Editing: multiple_sidebars.php
<?php /** * Plugin Name: Sidebar Generator * Plugin URI: http://www.getson.info * Description: This plugin generates as many sidebars as you need. Then allows you to place them on any page you wish. Version 1.1 now supports themes with multiple sidebars. * Version: 1.1.0 * Author: Kyle Getson * Author URI: http://www.kylegetson.com * Copyright (C) 2009 Kyle Robert Getson * * @package Avada */ /* Copyright (C) 2009 Kyle Robert Getson, kylegetson.com and getson.info This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see <http://www.gnu.org/licenses/>. */ // Do not allow directly accessing this file. if ( ! defined( 'ABSPATH' ) ) { exit( 'Direct script access denied.' ); } /** * The Sidebar Generator. */ class Sidebar_Generator { /** * The class constructor. * * @access public */ public function __construct() { add_action( 'init', [ $this, 'init' ] ); add_action( 'widgets_admin_page', [ $this, 'admin_page' ] ); add_action( 'admin_enqueue_scripts', [ $this, 'admin_enqueue_scripts' ] ); add_action( 'admin_print_scripts', [ $this, 'admin_print_scripts' ] ); } /** * Initializes the sidebar registration. * * @access public */ public function init() { if ( current_user_can( 'manage_options' ) ) { add_action( 'wp_ajax_add_sidebar', [ $this, 'add_sidebar' ] ); add_action( 'wp_ajax_remove_sidebar', [ $this, 'remove_sidebar' ] ); } // Go through each sidebar and register it. $sidebars = self::get_sidebars(); if ( is_array( $sidebars ) ) { foreach ( $sidebars as $sidebar ) { $sidebar_class = self::name_to_class( $sidebar ); register_sidebar( [ 'name' => $sidebar, 'id' => 'avada-custom-sidebar-' . strtolower( $sidebar_class ), 'before_widget' => '<div id="%1$s" class="widget %2$s">', 'after_widget' => '</div>', 'before_title' => '<div class="heading"><h4 class="widget-title">', 'after_title' => '</h4></div>', ] ); } } } /** * Enqueues the necessary scripts. * * @access public */ public function admin_enqueue_scripts() { wp_enqueue_script( [ 'sack' ] ); } /** * Prints some additional scripts. * * @access public */ public function admin_print_scripts() { $ajax_add_sidebar_nonce = wp_create_nonce( 'add-sidebar' ); $ajax_remove_sidebar_nonce = wp_create_nonce( 'remove-sidebar' ); ?> <script> function add_sidebar( sidebar_name ) { var mysack = new sack( "<?php echo esc_url_raw( admin_url( 'admin-ajax.php' ) ); ?>" ); mysack.execute = 1; mysack.method = 'POST'; mysack.setVar( 'action', 'add_sidebar' ); mysack.setVar( 'security', '<?php echo $ajax_add_sidebar_nonce; // phpcs:ignore WordPress.Security.EscapeOutput ?>' ); mysack.setVar( 'sidebar_name', sidebar_name ); // mysack.encVar( 'cookie', document.cookie, false ); mysack.onError = function() { alert( 'Ajax error. Cannot add sidebar' ) }; mysack.runAJAX(); return true; } function remove_sidebar( sidebar_name, num ) { var mysack = new sack("<?php echo esc_url_raw( admin_url( 'admin-ajax.php' ) ); ?>" ); mysack.execute = 1; mysack.method = 'POST'; mysack.setVar( 'action', 'remove_sidebar' ); mysack.setVar( 'security', '<?php echo $ajax_remove_sidebar_nonce; // phpcs:ignore WordPress.Security.EscapeOutput ?>' ); mysack.setVar( 'sidebar_name', sidebar_name ); mysack.setVar( 'row_number', num ); //mysack.encVar( 'cookie', document.cookie, false ); mysack.onError = function() { alert( 'Ajax error. Cannot remove sidebar' ) }; mysack.runAJAX(); // alert( 'hi!:::'+sidebar_name ); return true; } </script> <?php } /** * Adds the sidebar. * * @access public */ public function add_sidebar() { check_ajax_referer( 'add-sidebar', 'security' ); $sidebars = self::get_sidebars(); $name = isset( $_POST['sidebar_name'] ) ? str_replace( [ "\n", "\r", "\t" ], '', sanitize_text_field( wp_unslash( $_POST['sidebar_name'] ) ) ) : ''; $counter = ( is_array( $sidebars ) && ! empty( $sidebars ) ) ? count( $sidebars ) + 1 : 1; $id = self::name_to_class( $name ); if ( isset( $sidebars[ $id ] ) ) { die( "alert('" . esc_html__( 'Widget Area already exists, please use a different name.', 'Avada' ) . "')" ); } $sidebars[ $id ] = $name; self::update_sidebars( $sidebars ); $id = 'fusion-' . strtolower( self::name_to_class( $id ) ); $js = " var tbl = document.getElementById('sbg_table'); var lastRow = tbl.rows.length; // if there's no header row in the table, then iteration = lastRow + 1 var iteration = lastRow; var row = tbl.insertRow(lastRow); // left cell var cellLeft = row.insertCell(0); var textNode = document.createTextNode('$name'); cellLeft.appendChild(textNode); //middle cell var cellLeft = row.insertCell(1); var textNode = document.createTextNode('$id'); cellLeft.appendChild(textNode); var cellLeft = row.insertCell(2); removeLink = document.createElement('a'); linkText = document.createTextNode('remove'); removeLink.setAttribute('onclick', 'remove_sidebar_link(\'$id\', \'$name\', $counter)'); removeLink.setAttribute('href', 'javascript:void(0)'); removeLink.appendChild(linkText); cellLeft.appendChild(removeLink); var tbl = document.getElementById( 'no-widget-sections' ); if ( tbl !== null ) { tbl.remove(); } location.reload(); "; die( "$js" ); // phpcs:ignore WordPress.Security.EscapeOutput } /** * Removes a sidebar. * * @access public */ public function remove_sidebar() { check_ajax_referer( 'remove-sidebar', 'security' ); $sidebars = self::get_sidebars(); $id = isset( $_POST['sidebar_name'] ) ? strtolower( str_replace( [ "\n", "\r", "\t" ], '', sanitize_text_field( wp_unslash( $_POST['sidebar_name'] ) ) ) ) : false; $counter = '1'; if ( ! $id ) { return; } if ( is_array( $sidebars ) && ! empty( $sidebars ) ) { $sidebars = array_change_key_case( $sidebars, CASE_LOWER ); $counter = count( $sidebars ); } $no_widget_text = esc_html__( 'No Widget area defined.', 'Avada' ); if ( ! isset( $sidebars[ $id ] ) ) { die( 'alert("' . esc_html__( 'Widget area does not exist.', 'Avada' ) . '")' ); } $row_number = ( isset( $_POST['row_number'] ) ) ? sanitize_text_field( wp_unslash( $_POST['row_number'] ) ) : '0'; unset( $sidebars[ $id ] ); self::update_sidebars( $sidebars ); $js = " var tbl = document.getElementById('sbg_table'); if ( $counter - 1 == '0' ) { var last_row = tbl.rows.length; var row = tbl.insertRow( last_row ); var cell = row.insertCell( 0 ); var text_node = document.createTextNode( '$no_widget_text' ); row.setAttribute( 'id', 'no-widget-sections' ); cell.appendChild( text_node ); cell.colSpan = 3; } tbl.deleteRow( $row_number ); location.reload(); "; die( $js ); // phpcs:ignore WordPress.Security.EscapeOutput } /** * Adds the admin page. * * @access public */ public function admin_page() { ?> <script> function remove_sidebar_link( handle, name, num ) { answer = confirm( '<?php esc_attr_e( 'Are you sure you want to remove', 'Avada' ); ?> ' + name + '?\n<?php esc_attr_e( 'This will remove any widgets you have assigned to this widget area.', 'Avada' ); ?>' ); if ( answer ) { remove_sidebar( handle, num ); } else { return false; } } function add_sidebar_link() { var sidebar_name = prompt( '<?php esc_html_e( 'Widget Area Name:', 'Avada' ); ?>', '' ); if ( sidebar_name === null || sidebar_name == '' ) { return; } add_sidebar( sidebar_name ); } </script> <div class="postbox" style="max-width:calc(42% + 900px + 1.16%);"> <h2 class="hndle ui-sortable-handle" style="padding: 15px 12px; margin: 0;"> <span><?php esc_attr_e( 'Widget Areas', 'Avada' ); ?></span> </h2> <div class="inside" style="margin-bottom: 0;"> <table class="widefat page" id="sbg_table"> <tr> <th><?php esc_attr_e( 'Widget Area Name', 'Avada' ); ?></th> <th><?php esc_attr_e( 'CSS Class', 'Avada' ); ?></th> <th><?php esc_attr_e( 'Remove', 'Avada' ); ?></th> </tr> <?php $sidebars = self::get_sidebars(); ?> <?php if ( is_array( $sidebars ) && ! empty( $sidebars ) ) : ?> <?php $cnt = 0; ?> <?php foreach ( $sidebars as $sidebar_handle => $sidebar_name ) : ?> <?php $alt = ( 0 === $cnt % 2 ) ? 'alternate' : ''; ?> <tr class="<?php echo esc_attr( $alt ); ?>"> <td><?php echo esc_html( $sidebar_name ); ?></td> <td><?php echo 'fusion-' . strtolower( self::name_to_class( $sidebar_name ) ); // phpcs:ignore WordPress.Security.EscapeOutput ?></td> <td><a href="javascript:void(0);" onclick="return remove_sidebar_link('<?php echo self::name_to_class( $sidebar_handle ); // phpcs:ignore WordPress.Security.EscapeOutput ?>','<?php echo esc_js( $sidebar_name ); ?>', <?php echo intval( $cnt + 1 ); ?>);" title="<?php esc_attr_e( 'Remove This Widget Area', 'Avada' ); ?>"><?php esc_html_e( 'remove', 'Avada' ); ?></a></td> </tr> <?php $cnt++; ?> <?php endforeach; ?> <?php else : ?> <tr id="no-widget-sections"> <td colspan="3"><?php esc_html_e( 'No Widget Areas defined.', 'Avada' ); ?></td> </tr> <?php endif; ?> </table> <p class="add_sidebar"><a href="javascript:void(0);" onclick="return add_sidebar_link()" title="<?php esc_attr_e( 'Add New Widget Area', 'Avada' ); ?>" class="button button-primary"><?php esc_html_e( 'Add New Widget Area', 'Avada' ); ?></a></p> </div> </div> <?php } /** * Called by the action get_sidebar. this is what places this into the theme. * * @static * @access public * @param string $name The sidebat name. */ public static function get_sidebar( $name = '0' ) { if ( ! is_singular() && '0' == $name ) { // phpcs:ignore WordPress.PHP.StrictComparisons.LooseComparison $name = 'avada-blog-sidebar'; } if ( 'none' === strtolower( $name ) || __( 'None', 'Avada' ) === $name || empty( $name ) ) { return; } dynamic_sidebar( $name ); } /** * Called by the action get_sidebar. this is what places this into the theme. * * @static * @access public * @param string $name The sidebar name. */ public static function get_sidebar_2( $name = '0' ) { self::get_sidebar( $name ); } /** * Replaces array of sidebar names. * * @static * @access public * @param array $sidebar_array The sidebar array. */ public static function update_sidebars( $sidebar_array ) { update_option( 'sbg_sidebars', $sidebar_array ); } /** * Gets the generated sidebars. * * @static * @access public */ public static function get_sidebars() { $sidebars = get_option( 'sbg_sidebars', [] ); // Check needed in case empty string (as wrongly converted false) is stored in var. if ( empty( $sidebars ) || ! is_array( $sidebars ) ) { $sidebars = []; } return $sidebars; } /** * Converts a sidebar name to a class. * * @static * @access public * @param string $name The sidebar name. * @return string */ public static function name_to_class( $name ) { $class = str_replace( [ ' ', ',', '.', '"', "'", '/', '\\', '+', '=', ')', '(', '*', '&', '^', '%', '$', '#', '@', '!', '~', '`', '<', '>', '?', '[', ']', '{', '}', '|', ':' ], '', $name ); return strtolower( sanitize_html_class( $class ) ); } } $sbg = new Sidebar_Generator(); /** * Gets a generated sidebar. * * @param string $name The sidebar name. * @return true */ function generated_dynamic_sidebar( $name = '0' ) { Sidebar_Generator::get_sidebar( $name ); return true; } /** * Gets a generated sidebar. * * @param string $name The sidebar name. * @return true */ function generated_dynamic_sidebar_2( $name = '0' ) { Sidebar_Generator::get_sidebar_2( $name ); return true; } /* Omit closing PHP tag to avoid "Headers already sent" issues. */
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