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<?php |
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/** |
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* Plugin Name: Menu In Post |
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* Description: A simple but flexible plugin to add menus to a post or page. |
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* Author: linux4me2 |
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* Author URI: https://profiles.wordpress.org/linux4me2 |
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* Text Domain: menu-in-post |
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* Version: 1.3 |
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* License: GPL3 |
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* License URI: https://www.gnu.org/licenses/gpl-3.0-standalone.html |
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*/ |
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|
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defined('ABSPATH') or die('No direct access.'); |
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|
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define('MENUINPOST_PLUGIN', __FILE__); |
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define('MENUINPOST_PLUGIN_DIR', untrailingslashit(dirname(MENUINPOST_PLUGIN))); |
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|
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if (is_admin()) { |
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include_once MENUINPOST_PLUGIN_DIR . '/admin/help-tabs.php'; |
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include_once MENUINPOST_PLUGIN_DIR . '/admin/admin.php'; |
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} |
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|
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add_shortcode('menu_in_post_menu', 'outputMenuInPostMenu'); |
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|
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/** |
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* Initiates the output of a Menu In Post Menu. |
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* |
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* @param array $atts The attributes of the menu. |
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* |
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* @return Returns the menu via wp_nav_menu() |
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*/ |
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function outputMenuInPostMenu($atts = array()) |
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{ |
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if (isset($atts['menu'])) { |
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$menu = absint($atts['menu']); |
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} else { |
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$menu = 0; |
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} |
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if ($menu == 0) { |
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return fallbackMenuInPost(); |
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} else { |
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$args = array( |
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'menu'=>$menu, |
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'fallback_cb'=>'fallbackMenuInPost', |
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'echo'=>false |
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); |
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} |
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/* |
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If menu_id is empty, don't pass a value, and the menu slug with an |
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incremented value added will be used. |
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|
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If container_class is empty, don't pass a value and |
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'menu-{menu slug}-container' will be used. |
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*/ |
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$defaults = array( |
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'menu_class'=>'menu', |
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'menu_id'=>'', |
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'container'=>'div', |
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'container_class'=>'', |
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'container_id'=>'', |
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'style'=>'list', |
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'placeholder_text'=>esc_html(__('Select...', 'menu-in-post')), |
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'append_to_url'=>'', |
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'depth'=>0 |
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); |
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foreach ($defaults as $att=>$default) { |
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switch($att) { |
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case 'depth': |
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if (isset($atts[$att])) { |
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$passed_depth = absint($atts[$att]); |
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if ($passed_depth > 0) { |
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$args['depth'] = $passed_depth; |
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} |
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} else { |
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$atts['depth'] = $default; |
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} |
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break; |
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// These should be only strings. |
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default: |
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if (isset($atts[$att])) { |
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$passed_att = sanitize_text_field($atts[$att]); |
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if ($passed_att != '') { |
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$args[$att] = $passed_att; |
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} |
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} else { |
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$atts[$att] = $default; |
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} |
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} |
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} |
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if ($atts['style'] == 'dropdown') { |
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$select = '<select class="mip-drop-nav"'; |
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if ($atts['menu_id'] != '') { |
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$select .= ' id="' . $args['menu_id'] . '"'; |
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} |
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$select .= '>'; |
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$args['items_wrap'] = $select . '<option value="#">' . |
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$atts['placeholder_text'] . '</option>%3$s</select>'; |
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$args['walker'] = new MIPWalkerNavMenuDropdownBuilder(); |
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} else { |
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if ($atts['append_to_url'] != '') { |
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$args['walker'] = new MIPWalkerNavMenuListBuilder(); |
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} |
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} |
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if ($atts['append_to_url'] != '') { |
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$args['append_to_url'] = $atts['append_to_url']; |
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} |
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return wp_nav_menu($args); |
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} |
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|
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/** |
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* Menu In Post fallback function. |
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* |
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* @return Nothing |
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*/ |
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function fallbackMenuInPost() |
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{ |
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return; |
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} |
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|
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add_action('wp_enqueue_scripts', 'enqueueMenuInPostFrontEndJS'); |
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|
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/** |
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* Selectively enqueues the JavaScript for Menu In Post |
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* |
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* @return Nothing, but it runs wp_enqueue_script(). |
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*/ |
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function enqueueMenuInPostFrontEndJS() |
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{ |
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$options = get_option( |
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'mip_options', |
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array( |
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'miploadjs' => 'always', |
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'miponlypages' => '', |
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'mipminimizejs' => 'yes' |
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) |
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); |
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|
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$load = false; |
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$loadjs = $options['miploadjs']; |
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if ($options['mipminimizejs'] === 'yes') { |
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$file = 'main-min.js'; |
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} else { |
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$file = 'main.js'; |
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} |
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|
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switch($loadjs) { |
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case 'always': |
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$load = true; |
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break; |
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case 'onlypages': |
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$pagestr = trim(str_replace(' ', '', $options['miponlypages'])); |
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if ($pagestr !== '') { |
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$pages = explode(',', $pagestr); |
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if (is_array($pages)) { |
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$pageid = get_queried_object_id(); |
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if (in_array($pageid, $pages)) { |
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$load = true; |
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} |
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} |
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} |
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break; |
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} |
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|
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if ($load === true) { |
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wp_enqueue_script( |
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'menu_in_post_frontend_script', |
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plugins_url('js/' . $file, __FILE__), |
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array('jquery') |
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); |
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} |
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} |
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|
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class MIPWalkerNavMenuDropdownBuilder extends Walker_Nav_Menu |
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{ |
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/** |
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* Starts the list before the elements are added. |
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* |
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* @param string $output Used to append additional content (passed by ref). |
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* @param int $depth Depth of menu item. Used for padding. |
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* @param stdClass $args An object of wp_nav_menu() arguments. |
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* |
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* @return Nothing here. |
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*/ |
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function start_lvl(&$output, $depth = 0, $args = null) |
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{ |
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} |
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|
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/** |
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* Ends the list of after the elements are added. |
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* |
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* @param string $output Used to append additional content (passed by ref). |
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* @param int $depth Depth of menu item. Used for padding. |
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* @param stdClass $args An object of wp_nav_menu() arguments. |
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* |
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* @return Nothing here. |
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*/ |
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function end_lvl(&$output, $depth = 0, $args = null) |
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{ |
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} |
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|
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/** |
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* Starts the element output. |
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* |
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* @param string $output Appends additional content (passed by reference). |
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* @param WP_Post $item Menu item data object. |
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* @param int $depth Depth of menu item. Used for padding. |
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* @param stdClass $args An object of wp_nav_menu() arguments. |
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* @param int $id The current menu item. Default 0. |
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* |
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* @return Returns the HTML output for the element. |
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*/ |
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function start_el(&$output, $item, $depth = 0, $args = null, $id = 0) |
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{ |
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// Create each option. |
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$item_output = ''; |
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|
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// Add spacing to the title based on the depth. |
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$item->title = str_repeat(' - ', $depth * 1) . $item->title; |
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|
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// Get the link. |
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if (!empty($args->append_to_url)) { |
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$attributes = !empty($item->url) ? ' value="' . esc_attr($item->url) . |
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$args->append_to_url .'"' : ''; |
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} else { |
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$attributes = !empty($item->url) ? ' value="' . esc_attr($item->url) . |
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'"' : ''; |
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} |
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|
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// Get the target, if any. |
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if (!empty($item->target)) { |
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$attributes .= ' data-target="' . esc_attr($item->target) . '"'; |
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} |
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|
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// Add selected attribute if menu item is the current page. |
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if ($item->current) { |
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$attributes .= ' selected="selected"'; |
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} |
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|
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// Add the HTML. |
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$item_output .= '<option'. $attributes .'>'; |
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$item_output .= apply_filters('the_title_attribute', $item->title); |
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|
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// Add the new item to the output string. |
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$output .= $item_output; |
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} |
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|
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/** |
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* Ends the element output, if needed. |
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* |
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* @param string $output Used to append additional content (passed by ref). |
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* @param WP_Post $item Menu item data object. Not used. |
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* @param int $depth Depth of page. Not Used. |
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* @param stdClass $args An object of wp_nav_menu() arguments. |
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* |
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* @return Returns the closing tag, if needed. |
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*/ |
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function end_el(&$output, $item, $depth = 0, $args = null) |
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{ |
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// Close the item. |
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$output .= "</option>\n"; |
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|
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} |
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|
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} |
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|
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class MIPWalkerNavMenuListBuilder extends Walker_Nav_Menu |
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{ |
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/** |
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* Starts the element output. |
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* |
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* @param string $output Appends additional content (passed by reference). |
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* @param WP_Post $item Menu item data object. |
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* @param int $depth Depth of menu item. Used for padding. |
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* @param stdClass $args An object of wp_nav_menu() arguments. |
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* @param int $id The current menu item. Default 0. |
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* |
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* @return Returns the HTML output for the element. |
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*/ |
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function start_el(&$output, $item, $depth = 0, $args = null, $id = 0) |
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{ |
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if (isset($args->item_spacing) && 'discard' === $args->item_spacing) { |
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$t = ''; |
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$n = ''; |
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} else { |
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$t = "\t"; |
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$n = "\n"; |
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} |
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$indent = ( $depth ) ? str_repeat($t, $depth) : ''; |
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|
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$classes = empty($item->classes) ? array() : (array) $item->classes; |
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$classes[] = 'menu-item-' . $item->ID; |
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|
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$args = apply_filters('nav_menu_item_args', $args, $item, $depth); |
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|
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$class_names = implode( |
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' ', |
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apply_filters( |
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'nav_menu_css_class', |
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array_filter($classes), |
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$item, |
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$args, |
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$depth |
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) |
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); |
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$class_names = $class_names ? ' class="' . esc_attr($class_names) . '"' : ''; |
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|
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$id = apply_filters( |
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'nav_menu_item_id', |
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'menu-item-' . $item->ID, |
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$item, |
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$args, |
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$depth |
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); |
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$id = $id ? ' id="' . esc_attr($id) . '"' : ''; |
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|
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$output .= $indent . '<li' . $id . $class_names . '>'; |
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|
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$atts = array(); |
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$atts['title'] = !empty($item->attr_title) ? $item->attr_title : ''; |
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$atts['target'] = !empty($item->target) ? $item->target : ''; |
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if ('_blank' === $item->target && empty($item->xfn) ) { |
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$atts['rel'] = 'noopener'; |
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} else { |
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$atts['rel'] = $item->xfn; |
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} |
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if (!empty($args->append_to_url)) { |
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$atts['href'] = !empty($item->url) ? $item->url . |
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$args->append_to_url : ''; |
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} else { |
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$atts['href'] = !empty($item->url) ? $item->url : ''; |
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} |
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$atts['aria-current'] = $item->current ? 'page' : ''; |
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|
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$atts = apply_filters( |
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'nav_menu_link_attributes', |
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$atts, |
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$item, |
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$args, |
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$depth |
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); |
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|
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$attributes = ''; |
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foreach ( $atts as $attr => $value ) { |
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if (is_scalar($value) && '' !== $value && false !== $value ) { |
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$value = ( 'href' === $attr ) ? esc_url($value) : esc_attr($value); |
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$attributes .= ' ' . $attr . '="' . $value . '"'; |
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} |
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} |
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|
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$title = apply_filters('the_title', $item->title, $item->ID); |
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|
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$title = apply_filters('nav_menu_item_title', $title, $item, $args, $depth); |
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|
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$item_output = $args->before; |
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$item_output .= '<a' . $attributes . '>'; |
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$item_output .= $args->link_before . $title . $args->link_after; |
| 357 |
$item_output .= '</a>'; |
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$item_output .= $args->after; |
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|
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$output .= apply_filters( |
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'walker_nav_menu_start_el', |
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$item_output, |
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$item, |
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$depth, |
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$args |
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); |
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} |
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} |
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?> |
