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04c8217724
The admin menu icons are included as a visual element to support the text links. Without the `aria-hidden=“true”` attribute, they are also exposed to assistive technologies (which can process icon fonts in unpredictable ways). This change improves the experience for multiple types of assistive technologies, including screen reading and voice control software. With `aria-hidden=“true”` added, the icons will not be read, and a user can now trigger a click of a top level admin menu item with commands such as “click posts”, or “click plugins”. Props joedolson, afercia, audrasjb, adriantirusli. Fixes #51012. Built from https://develop.svn.wordpress.org/trunk@48963 git-svn-id: http://core.svn.wordpress.org/trunk@48725 1a063a9b-81f0-0310-95a4-ce76da25c4cd
307 lines
9.7 KiB
PHP
307 lines
9.7 KiB
PHP
<?php
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/**
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* Displays Administration Menu.
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*
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* @package WordPress
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* @subpackage Administration
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*/
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/**
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* The current page.
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*
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* @global string $self
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*/
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$self = preg_replace( '|^.*/wp-admin/network/|i', '', $_SERVER['PHP_SELF'] );
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$self = preg_replace( '|^.*/wp-admin/|i', '', $self );
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$self = preg_replace( '|^.*/plugins/|i', '', $self );
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$self = preg_replace( '|^.*/mu-plugins/|i', '', $self );
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/**
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* For when admin-header is included from within a function.
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*
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* @global array $menu
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* @global array $submenu
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* @global string $parent_file
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* @global string $submenu_file
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*/
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global $menu, $submenu, $parent_file, $submenu_file;
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/**
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* Filters the parent file of an admin menu sub-menu item.
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*
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* Allows plugins to move sub-menu items around.
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*
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* @since MU (3.0.0)
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*
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* @param string $parent_file The parent file.
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*/
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$parent_file = apply_filters( 'parent_file', $parent_file );
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/**
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* Filters the file of an admin menu sub-menu item.
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*
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* @since 4.4.0
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*
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* @param string $submenu_file The submenu file.
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* @param string $parent_file The submenu item's parent file.
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*/
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$submenu_file = apply_filters( 'submenu_file', $submenu_file, $parent_file );
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get_admin_page_parent();
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/**
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* Display menu.
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*
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* @access private
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* @since 2.7.0
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*
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* @global string $self
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* @global string $parent_file
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* @global string $submenu_file
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* @global string $plugin_page
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* @global string $typenow
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*
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* @param array $menu
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* @param array $submenu
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* @param bool $submenu_as_parent
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*/
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function _wp_menu_output( $menu, $submenu, $submenu_as_parent = true ) {
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global $self, $parent_file, $submenu_file, $plugin_page, $typenow;
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$first = true;
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// 0 = menu_title, 1 = capability, 2 = menu_slug, 3 = page_title, 4 = classes, 5 = hookname, 6 = icon_url.
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foreach ( $menu as $key => $item ) {
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$admin_is_parent = false;
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$class = array();
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$aria_attributes = '';
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$aria_hidden = '';
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$is_separator = false;
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if ( $first ) {
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$class[] = 'wp-first-item';
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$first = false;
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}
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$submenu_items = array();
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if ( ! empty( $submenu[ $item[2] ] ) ) {
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$class[] = 'wp-has-submenu';
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$submenu_items = $submenu[ $item[2] ];
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}
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if ( ( $parent_file && $item[2] === $parent_file ) || ( empty( $typenow ) && $self === $item[2] ) ) {
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if ( ! empty( $submenu_items ) ) {
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$class[] = 'wp-has-current-submenu wp-menu-open';
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} else {
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$class[] = 'current';
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$aria_attributes .= 'aria-current="page"';
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}
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} else {
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$class[] = 'wp-not-current-submenu';
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if ( ! empty( $submenu_items ) ) {
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$aria_attributes .= 'aria-haspopup="true"';
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}
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}
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if ( ! empty( $item[4] ) ) {
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$class[] = esc_attr( $item[4] );
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}
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$class = $class ? ' class="' . join( ' ', $class ) . '"' : '';
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$id = ! empty( $item[5] ) ? ' id="' . preg_replace( '|[^a-zA-Z0-9_:.]|', '-', $item[5] ) . '"' : '';
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$img = '';
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$img_style = '';
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$img_class = ' dashicons-before';
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if ( false !== strpos( $class, 'wp-menu-separator' ) ) {
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$is_separator = true;
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}
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/*
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* If the string 'none' (previously 'div') is passed instead of a URL, don't output
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* the default menu image so an icon can be added to div.wp-menu-image as background
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* with CSS. Dashicons and base64-encoded data:image/svg_xml URIs are also handled
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* as special cases.
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*/
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if ( ! empty( $item[6] ) ) {
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$img = '<img src="' . $item[6] . '" alt="" />';
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if ( 'none' === $item[6] || 'div' === $item[6] ) {
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$img = '<br />';
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} elseif ( 0 === strpos( $item[6], 'data:image/svg+xml;base64,' ) ) {
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$img = '<br />';
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$img_style = ' style="background-image:url(\'' . esc_attr( $item[6] ) . '\')"';
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$img_class = ' svg';
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} elseif ( 0 === strpos( $item[6], 'dashicons-' ) ) {
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$img = '<br />';
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$img_class = ' dashicons-before ' . sanitize_html_class( $item[6] );
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}
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}
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$arrow = '<div class="wp-menu-arrow"><div></div></div>';
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$title = wptexturize( $item[0] );
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// Hide separators from screen readers.
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if ( $is_separator ) {
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$aria_hidden = ' aria-hidden="true"';
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}
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echo "\n\t<li$class$id$aria_hidden>";
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if ( $is_separator ) {
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echo '<div class="separator"></div>';
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} elseif ( $submenu_as_parent && ! empty( $submenu_items ) ) {
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$submenu_items = array_values( $submenu_items ); // Re-index.
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$menu_hook = get_plugin_page_hook( $submenu_items[0][2], $item[2] );
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$menu_file = $submenu_items[0][2];
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$pos = strpos( $menu_file, '?' );
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if ( false !== $pos ) {
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$menu_file = substr( $menu_file, 0, $pos );
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}
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if ( ! empty( $menu_hook )
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|| ( ( 'index.php' !== $submenu_items[0][2] )
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&& file_exists( WP_PLUGIN_DIR . "/$menu_file" )
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&& ! file_exists( ABSPATH . "/wp-admin/$menu_file" ) )
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) {
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$admin_is_parent = true;
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echo "<a href='admin.php?page={$submenu_items[0][2]}'$class $aria_attributes>$arrow<div class='wp-menu-image$img_class'$img_style aria-hidden='true'>$img</div><div class='wp-menu-name'>$title</div></a>";
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} else {
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echo "\n\t<a href='{$submenu_items[0][2]}'$class $aria_attributes>$arrow<div class='wp-menu-image$img_class'$img_style aria-hidden='true'>$img</div><div class='wp-menu-name'>$title</div></a>";
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}
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} elseif ( ! empty( $item[2] ) && current_user_can( $item[1] ) ) {
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$menu_hook = get_plugin_page_hook( $item[2], 'admin.php' );
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$menu_file = $item[2];
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$pos = strpos( $menu_file, '?' );
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if ( false !== $pos ) {
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$menu_file = substr( $menu_file, 0, $pos );
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}
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if ( ! empty( $menu_hook )
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|| ( ( 'index.php' !== $item[2] )
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&& file_exists( WP_PLUGIN_DIR . "/$menu_file" )
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&& ! file_exists( ABSPATH . "/wp-admin/$menu_file" ) )
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) {
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$admin_is_parent = true;
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echo "\n\t<a href='admin.php?page={$item[2]}'$class $aria_attributes>$arrow<div class='wp-menu-image$img_class'$img_style aria-hidden='true'>$img</div><div class='wp-menu-name'>{$item[0]}</div></a>";
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} else {
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echo "\n\t<a href='{$item[2]}'$class $aria_attributes>$arrow<div class='wp-menu-image$img_class'$img_style aria-hidden='true'>$img</div><div class='wp-menu-name'>{$item[0]}</div></a>";
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}
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}
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if ( ! empty( $submenu_items ) ) {
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echo "\n\t<ul class='wp-submenu wp-submenu-wrap'>";
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echo "<li class='wp-submenu-head' aria-hidden='true'>{$item[0]}</li>";
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$first = true;
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// 0 = menu_title, 1 = capability, 2 = menu_slug, 3 = page_title, 4 = classes.
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foreach ( $submenu_items as $sub_key => $sub_item ) {
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if ( ! current_user_can( $sub_item[1] ) ) {
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continue;
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}
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$class = array();
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$aria_attributes = '';
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if ( $first ) {
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$class[] = 'wp-first-item';
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$first = false;
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}
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$menu_file = $item[2];
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$pos = strpos( $menu_file, '?' );
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if ( false !== $pos ) {
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$menu_file = substr( $menu_file, 0, $pos );
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}
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// Handle current for post_type=post|page|foo pages, which won't match $self.
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$self_type = ! empty( $typenow ) ? $self . '?post_type=' . $typenow : 'nothing';
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if ( isset( $submenu_file ) ) {
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if ( $submenu_file === $sub_item[2] ) {
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$class[] = 'current';
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$aria_attributes .= ' aria-current="page"';
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}
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// If plugin_page is set the parent must either match the current page or not physically exist.
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// This allows plugin pages with the same hook to exist under different parents.
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} elseif (
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( ! isset( $plugin_page ) && $self === $sub_item[2] )
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|| ( isset( $plugin_page ) && $plugin_page === $sub_item[2]
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&& ( $item[2] === $self_type || $item[2] === $self || file_exists( $menu_file ) === false ) )
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) {
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$class[] = 'current';
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$aria_attributes .= ' aria-current="page"';
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}
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if ( ! empty( $sub_item[4] ) ) {
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$class[] = esc_attr( $sub_item[4] );
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}
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$class = $class ? ' class="' . join( ' ', $class ) . '"' : '';
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$menu_hook = get_plugin_page_hook( $sub_item[2], $item[2] );
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$sub_file = $sub_item[2];
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$pos = strpos( $sub_file, '?' );
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if ( false !== $pos ) {
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$sub_file = substr( $sub_file, 0, $pos );
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}
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$title = wptexturize( $sub_item[0] );
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if ( ! empty( $menu_hook )
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|| ( ( 'index.php' !== $sub_item[2] )
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&& file_exists( WP_PLUGIN_DIR . "/$sub_file" )
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&& ! file_exists( ABSPATH . "/wp-admin/$sub_file" ) )
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) {
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// If admin.php is the current page or if the parent exists as a file in the plugins or admin directory.
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if ( ( ! $admin_is_parent && file_exists( WP_PLUGIN_DIR . "/$menu_file" ) && ! is_dir( WP_PLUGIN_DIR . "/{$item[2]}" ) ) || file_exists( $menu_file ) ) {
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$sub_item_url = add_query_arg( array( 'page' => $sub_item[2] ), $item[2] );
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} else {
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$sub_item_url = add_query_arg( array( 'page' => $sub_item[2] ), 'admin.php' );
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}
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$sub_item_url = esc_url( $sub_item_url );
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echo "<li$class><a href='$sub_item_url'$class$aria_attributes>$title</a></li>";
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} else {
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echo "<li$class><a href='{$sub_item[2]}'$class$aria_attributes>$title</a></li>";
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}
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}
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echo '</ul>';
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}
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echo '</li>';
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}
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echo '<li id="collapse-menu" class="hide-if-no-js">' .
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'<button type="button" id="collapse-button" aria-label="' . esc_attr__( 'Collapse Main menu' ) . '" aria-expanded="true">' .
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'<span class="collapse-button-icon" aria-hidden="true"></span>' .
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'<span class="collapse-button-label">' . __( 'Collapse menu' ) . '</span>' .
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'</button></li>';
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}
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?>
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<div id="adminmenumain" role="navigation" aria-label="<?php esc_attr_e( 'Main menu' ); ?>">
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<a href="#wpbody-content" class="screen-reader-shortcut"><?php _e( 'Skip to main content' ); ?></a>
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<a href="#wp-toolbar" class="screen-reader-shortcut"><?php _e( 'Skip to toolbar' ); ?></a>
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<div id="adminmenuback"></div>
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<div id="adminmenuwrap">
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<ul id="adminmenu">
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<?php
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_wp_menu_output( $menu, $submenu );
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/**
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* Fires after the admin menu has been output.
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*
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* @since 2.5.0
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*/
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do_action( 'adminmenu' );
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?>
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</ul>
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</div>
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</div>
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