WordPressを読む　10-4　/blog/wp-includes/functions.php 4

2014/11/22 2014/11/30

1 /blog/wp-includes/functions.php 4
2 読込元 : /blog/wp-settings.php
3 読込元 : /blog/wp-load.php
4 wp_get_http()
5 wp_get_http_headers()
6 is_new_day()
7 build_query()
8 _http_build_query()
9 add_query_arg()

/blog/wp-includes/functions.php 4

読込元 : /blog/wp-settings.php

読込元 : /blog/wp-load.php

関数

wp_get_http()

/**
 * Perform a HTTP HEAD or GET request.
 *
 * If $file_path is a writable filename, this will do a GET request and write
 * the file to that path.
 *
 * @since 2.5.0
 *
 * @param string      $url       URL to fetch.
 * @param string|bool $file_path Optional. File path to write request to. Default false.
 * @param int         $red       Optional. The number of Redirects followed, Upon 5 being hit,
 *                               returns false. Default 1.
 * @return bool|string False on failure and string of headers if HEAD request.
 */
function wp_get_http( $url, $file_path = false, $red = 1 ) {
	@set_time_limit( 60 );

	if ( $red > 5 )
		return false;

	$options = array();
	$options['redirection'] = 5;

	if ( false == $file_path )
		$options['method'] = 'HEAD';
	else
		$options['method'] = 'GET';

	$response = wp_safe_remote_request( $url, $options );

	if ( is_wp_error( $response ) )
		return false;

	$headers = wp_remote_retrieve_headers( $response );
	$headers['response'] = wp_remote_retrieve_response_code( $response );

	// WP_HTTP no longer follows redirects for HEAD requests.
	if ( 'HEAD' == $options['method'] && in_array($headers['response'], array(301, 302)) && isset( $headers['location'] ) ) {
		return wp_get_http( $headers['location'], $file_path, ++$red );
	}

	if ( false == $file_path )
		return $headers;

	// GET request - write it to the supplied filename
	$out_fp = fopen($file_path, 'w');
	if ( !$out_fp )
		return $headers;

	fwrite( $out_fp,  wp_remote_retrieve_body( $response ) );
	fclose($out_fp);
	clearstatcache();

	return $headers;
}

/**

* Perform a HTTP HEAD or GET request.

* If $file_path is a writable filename, this will do a GET request and write

* the file to that path.

* @since 2.5.0

* @param string $url URL to fetch.

* @param string|bool $file_path Optional. File path to write request to. Default false.

* @param int $red Optional. The number of Redirects followed, Upon 5 being hit,

* returns false. Default 1.

* @return bool|string False on failure and string of headers if HEAD request.

function wp_get_http( $url, $file_path = false, $red = 1 ) {

@set_time_limit( 60 );

if ( $red > 5 )

return false;

$options = array();

$options['redirection'] = 5;

if ( false == $file_path )

$options['method'] = 'HEAD';

else

$options['method'] = 'GET';

$response = wp_safe_remote_request( $url, $options );

if ( is_wp_error( $response ) )

return false;

$headers = wp_remote_retrieve_headers( $response );

$headers['response'] = wp_remote_retrieve_response_code( $response );

// WP_HTTP no longer follows redirects for HEAD requests.

if ( 'HEAD' == $options['method'] && in_array($headers['response'], array(301, 302)) && isset( $headers['location'] ) ) {

return wp_get_http( $headers['location'], $file_path, ++$red );

}

if ( false == $file_path )

return $headers;

// GET request - write it to the supplied filename

$out_fp = fopen($file_path, 'w');

if ( !$out_fp )

return $headers;

fwrite( $out_fp, wp_remote_retrieve_body( $response ) );

fclose($out_fp);

clearstatcache();

return $headers;

}

関数

wp_get_http_headers()

/**
 * Retrieve HTTP Headers from URL.
 *
 * @since 1.5.1
 *
 * @param string $url        URL to retrieve HTTP headers from.
 * @param bool   $deprecated Not Used.
 * @return bool|string False on failure, headers on success.
 */
function wp_get_http_headers( $url, $deprecated = false ) {
	if ( !empty( $deprecated ) )
		_deprecated_argument( __FUNCTION__, '2.7' );

	$response = wp_safe_remote_head( $url );

	if ( is_wp_error( $response ) )
		return false;

	return wp_remote_retrieve_headers( $response );
}

/**

* Retrieve HTTP Headers from URL.

* @since 1.5.1

* @param string $url URL to retrieve HTTP headers from.

* @param bool $deprecated Not Used.

* @return bool|string False on failure, headers on success.

function wp_get_http_headers( $url, $deprecated = false ) {

if ( !empty( $deprecated ) )

_deprecated_argument( __FUNCTION__, '2.7' );

$response = wp_safe_remote_head( $url );

if ( is_wp_error( $response ) )

return false;

return wp_remote_retrieve_headers( $response );

}

関数　

is_new_day()

/**
 * Whether the publish date of the current post in the loop is different from the
 * publish date of the previous post in the loop.
 *
 * @since 0.71
 *
 * @global string $currentday  The day of the current post in the loop.
 * @global string $previousday The day of the previous post in the loop.
 *
 * @return int|bool 1|true when new day, 0|false if not a new day.
 */
function is_new_day() {
	global $currentday, $previousday;
	if ( $currentday != $previousday )
		return 1;
	else
		return 0;
}

/**

* Whether the publish date of the current post in the loop is different from the

* publish date of the previous post in the loop.

* @since 0.71

* @global string $currentday The day of the current post in the loop.

* @global string $previousday The day of the previous post in the loop.

* @return int|bool 1|true when new day, 0|false if not a new day.

function is_new_day() {

global $currentday, $previousday;

if ( $currentday != $previousday )

return 1;

else

return 0;

}

関数

build_query()

/**
 * Build URL query based on an associative and, or indexed array.
 *
 * This is a convenient function for easily building url queries. It sets the
 * separator to '&' and uses _http_build_query() function.
 *
 * @since 2.3.0
 *
 * @see _http_build_query() Used to build the query
 * @see http://us2.php.net/manual/en/function.http-build-query.php for more on what
 *		http_build_query() does.
 *
 * @param array $data URL-encode key/value pairs.
 * @return string URL-encoded string.
 */
function build_query( $data ) {
	return _http_build_query( $data, null, '&', '', false );
}

/**

* Build URL query based on an associative and, or indexed array.

* This is a convenient function for easily building url queries. It sets the

* separator to '&' and uses _http_build_query() function.

* @since 2.3.0

* @see _http_build_query() Used to build the query

* @see http://us2.php.net/manual/en/function.http-build-query.php for more on what

* http_build_query() does.

* @param array $data URL-encode key/value pairs.

* @return string URL-encoded string.

function build_query( $data ) {

return _http_build_query( $data, null, '&', '', false );

}

関数

_http_build_query()

/**
 * From php.net (modified by Mark Jaquith to behave like the native PHP5 function).
 *
 * @since 3.2.0
 * @access private
 *
 * @see http://us1.php.net/manual/en/function.http-build-query.php
 *
 * @param array|object  $data       An array or object of data. Converted to array.
 * @param string        $prefix     Optional. Numeric index. If set, start parameter numbering with it.
 *                                  Default null.
 * @param string        $sep        Optional. Argument separator; defaults to 'arg_separator.output'.
 *                                  Default null.
 * @param string        $key        Optional. Used to prefix key name. Default empty.
 * @param bool          $urlencode  Optional. Whether to use urlencode() in the result. Default true.
 *
 * @return string The query string.
 */
function _http_build_query( $data, $prefix = null, $sep = null, $key = '', $urlencode = true ) {
	$ret = array();

	foreach ( (array) $data as $k => $v ) {
		if ( $urlencode)
			$k = urlencode($k);
		if ( is_int($k) && $prefix != null )
			$k = $prefix.$k;
		if ( !empty($key) )
			$k = $key . '%5B' . $k . '%5D';
		if ( $v === null )
			continue;
		elseif ( $v === FALSE )
			$v = '0';

		if ( is_array($v) || is_object($v) )
			array_push($ret,_http_build_query($v, '', $sep, $k, $urlencode));
		elseif ( $urlencode )
			array_push($ret, $k.'='.urlencode($v));
		else
			array_push($ret, $k.'='.$v);
	}

	if ( null === $sep )
		$sep = ini_get('arg_separator.output');

	return implode($sep, $ret);
}

/**

* From php.net (modified by Mark Jaquith to behave like the native PHP5 function).

* @since 3.2.0

* @access private

* @see http://us1.php.net/manual/en/function.http-build-query.php

* @param array|object $data An array or object of data. Converted to array.

* @param string $prefix Optional. Numeric index. If set, start parameter numbering with it.

* Default null.

* @param string $sep Optional. Argument separator; defaults to 'arg_separator.output'.

* Default null.

* @param string $key Optional. Used to prefix key name. Default empty.

* @param bool $urlencode Optional. Whether to use urlencode() in the result. Default true.

* @return string The query string.

function _http_build_query( $data, $prefix = null, $sep = null, $key = '', $urlencode = true ) {

$ret = array();

foreach ( (array) $data as $k => $v ) {

if ( $urlencode)

$k = urlencode($k);

if ( is_int($k) && $prefix != null )

$k = $prefix.$k;

if ( !empty($key) )

$k = $key . '%5B' . $k . '%5D';

if ( $v === null )

continue;

elseif ( $v === FALSE )

$v = '0';

if ( is_array($v) || is_object($v) )

array_push($ret,_http_build_query($v, '', $sep, $k, $urlencode));

elseif ( $urlencode )

array_push($ret, $k.'='.urlencode($v));

else

array_push($ret, $k.'='.$v);

}

if ( null === $sep )

$sep = ini_get('arg_separator.output');

return implode($sep, $ret);

}

関数

add_query_arg()

/**
 * Retrieve a modified URL query string.
 *
 * You can rebuild the URL and append a new query variable to the URL query by
 * using this function. You can also retrieve the full URL with query data.
 *
 * Adding a single key & value or an associative array. Setting a key value to
 * an empty string removes the key. Omitting oldquery_or_uri uses the $_SERVER
 * value. Additional values provided are expected to be encoded appropriately
 * with urlencode() or rawurlencode().
 *
 * @since 1.5.0
 *
 * @param string|array $param1 Either newkey or an associative_array.
 * @param string       $param2 Either newvalue or oldquery or URI.
 * @param string       $param3 Optional. Old query or URI.
 * @return string New URL query string.
 */
function add_query_arg() {
	$args = func_get_args();
	if ( is_array( $args[0] ) ) {
		if ( count( $args ) < 2 || false === $args[1] )
			$uri = $_SERVER['REQUEST_URI'];
		else
			$uri = $args[1];
	} else {
		if ( count( $args ) < 3 || false === $args[2] )
			$uri = $_SERVER['REQUEST_URI'];
		else
			$uri = $args[2];
	}

	if ( $frag = strstr( $uri, '#' ) )
		$uri = substr( $uri, 0, -strlen( $frag ) );
	else
		$frag = '';

	if ( 0 === stripos( $uri, 'http://' ) ) {
		$protocol = 'http://';
		$uri = substr( $uri, 7 );
	} elseif ( 0 === stripos( $uri, 'https://' ) ) {
		$protocol = 'https://';
		$uri = substr( $uri, 8 );
	} else {
		$protocol = '';
	}

	if ( strpos( $uri, '?' ) !== false ) {
		list( $base, $query ) = explode( '?', $uri, 2 );
		$base .= '?';
	} elseif ( $protocol || strpos( $uri, '=' ) === false ) {
		$base = $uri . '?';
		$query = '';
	} else {
		$base = '';
		$query = $uri;
	}

	wp_parse_str( $query, $qs );
	$qs = urlencode_deep( $qs ); // this re-URL-encodes things that were already in the query string
	if ( is_array( $args[0] ) ) {
		$kayvees = $args[0];
		$qs = array_merge( $qs, $kayvees );
	} else {
		$qs[ $args[0] ] = $args[1];
	}

	foreach ( $qs as $k => $v ) {
		if ( $v === false )
			unset( $qs[$k] );
	}

	$ret = build_query( $qs );
	$ret = trim( $ret, '?' );
	$ret = preg_replace( '#=(&|$)#', '$1', $ret );
	$ret = $protocol . $base . $ret . $frag;
	$ret = rtrim( $ret, '?' );
	return $ret;
}

/**

* Retrieve a modified URL query string.

* You can rebuild the URL and append a new query variable to the URL query by

* using this function. You can also retrieve the full URL with query data.

* Adding a single key & value or an associative array. Setting a key value to

* an empty string removes the key. Omitting oldquery_or_uri uses the $_SERVER

* value. Additional values provided are expected to be encoded appropriately

* with urlencode() or rawurlencode().

* @since 1.5.0

* @param string|array $param1 Either newkey or an associative_array.

* @param string $param2 Either newvalue or oldquery or URI.

* @param string $param3 Optional. Old query or URI.

* @return string New URL query string.

function add_query_arg() {

$args = func_get_args();

if ( is_array( $args[0] ) ) {

if ( count( $args ) < 2 || false === $args[1] )

$uri = $_SERVER['REQUEST_URI'];

else

$uri = $args[1];

} else {

if ( count( $args ) < 3 || false === $args[2] )

$uri = $_SERVER['REQUEST_URI'];

else

$uri = $args[2];

}

if ( $frag = strstr( $uri, '#' ) )

$uri = substr( $uri, 0, -strlen( $frag ) );

else

$frag = '';

if ( 0 === stripos( $uri, 'http://' ) ) {

$protocol = 'http://';

$uri = substr( $uri, 7 );

} elseif ( 0 === stripos( $uri, 'https://' ) ) {

$protocol = 'https://';

$uri = substr( $uri, 8 );

} else {

$protocol = '';

}

if ( strpos( $uri, '?' ) !== false ) {

list( $base, $query ) = explode( '?', $uri, 2 );

$base .= '?';

} elseif ( $protocol || strpos( $uri, '=' ) === false ) {

$base = $uri . '?';

$query = '';

} else {

$base = '';

$query = $uri;

}

wp_parse_str( $query, $qs );

$qs = urlencode_deep( $qs ); // this re-URL-encodes things that were already in the query string

if ( is_array( $args[0] ) ) {

$kayvees = $args[0];

$qs = array_merge( $qs, $kayvees );

} else {

$qs[ $args[0] ] = $args[1];

}

foreach ( $qs as $k => $v ) {

if ( $v === false )

unset( $qs[$k] );

}

$ret = build_query( $qs );

$ret = trim( $ret, '?' );

$ret = preg_replace( '#=(&|$)#', '$1', $ret );

$ret = $protocol . $base . $ret . $frag;

$ret = rtrim( $ret, '?' );

return $ret;

}

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: WordPressを読む　21 /blog/wp-includes/default-filters.php
/blog/wp-includes/default-filters.php 呼出 …

WordPressを読む　71 /blog/wp-includes/admin-bar.php

<?php
/**
 * Admin Bar
 *
 * This code handles the building and rendering of the press bar.
 */

/**
 * Instantiate the admin bar object and set it up as a global for access elsewhere.
 *
 * UNHOOKING THIS FUNCTION WILL NOT PROPERLY REMOVE THE ADMIN BAR.
 * For that, use show_admin_bar(false) or the 'show_admin_bar' filter.
 *
 * @since 3.1.0
 * @access private
 * @return bool Whether the admin bar was successfully initialized.
 */
function _wp_admin_bar_init() {
	global $wp_admin_bar;

	if ( ! is_admin_bar_showing() )
		return false;

	/* Load the admin bar class code ready for instantiation */
	require( ABSPATH . WPINC . '/class-wp-admin-bar.php' );

	/* Instantiate the admin bar */

	/**
	 * Filter the admin bar class to instantiate.
	 *
	 * @since 3.1.0
	 *
	 * @param string $wp_admin_bar_class Admin bar class to use. Default 'WP_Admin_Bar'.
	 */
	$admin_bar_class = apply_filters( 'wp_admin_bar_class', 'WP_Admin_Bar' );
	if ( class_exists( $admin_bar_class ) )
		$wp_admin_bar = new $admin_bar_class;
	else
		return false;

	$wp_admin_bar->initialize();
	$wp_admin_bar->add_menus();

	return true;
}
// Don't remove. Wrong way to disable.
add_action( 'template_redirect', '_wp_admin_bar_init', 0 );
add_action( 'admin_init', '_wp_admin_bar_init' );

/**
 * Render the admin bar to the page based on the $wp_admin_bar->menu member var.
 * This is called very late on the footer actions so that it will render after anything else being
 * added to the footer.
 *
 * It includes the action "admin_bar_menu" which should be used to hook in and
 * add new menus to the admin bar. That way you can be sure that you are adding at most optimal point,
 * right before the admin bar is rendered. This also gives you access to the $post global, among others.
 *
 * @since 3.1.0
 */
function wp_admin_bar_render() {
	global $wp_admin_bar;

	if ( ! is_admin_bar_showing() || ! is_object( $wp_admin_bar ) )
		return false;

	/**
	 * Load all necessary admin bar items.
	 *
	 * This is the hook used to add, remove, or manipulate admin bar items.
	 *
	 * @since 3.1.0
	 *
	 * @param WP_Admin_Bar $wp_admin_bar WP_Admin_Bar instance, passed by reference
	 */
	do_action_ref_array( 'admin_bar_menu', array( &$wp_admin_bar ) );

	/**
	 * Fires before the admin bar is rendered.
	 *
	 * @since 3.1.0
	 */
	do_action( 'wp_before_admin_bar_render' );

	$wp_admin_bar->render();

	/**
	 * Fires after the admin bar is rendered.
	 *
	 * @since 3.1.0
	 */
	do_action( 'wp_after_admin_bar_render' );
}
add_action( 'wp_footer', 'wp_admin_bar_render', 1000 );
add_action( 'in_admin_header', 'wp_admin_bar_render', 0 );

/**
 * Add the WordPress logo menu.
 *
 * @since 3.3.0
 *
 * @param WP_Admin_Bar $wp_admin_bar
 */
function wp_admin_bar_wp_menu( $wp_admin_bar ) {
	$wp_admin_bar->add_menu( array(
		'id'    => 'wp-logo',
		'title' => '<span class="ab-icon"></span>',
		'href'  => self_admin_url( 'about.php' ),
		'meta'  => array(
			'title' => __('About WordPress'),
		),
	) );

	if ( is_user_logged_in() ) {
		// Add "About WordPress" link
		$wp_admin_bar->add_menu( array(
			'parent' => 'wp-logo',
			'id'     => 'about',
			'title'  => __('About WordPress'),
			'href'  => self_admin_url( 'about.php' ),
		) );
	}

	// Add WordPress.org link
	$wp_admin_bar->add_menu( array(
		'parent'    => 'wp-logo-external',
		'id'        => 'wporg',
		'title'     => __('WordPress.org'),
		'href'      => __('https://wordpress.org/'),
	) );

	// Add codex link
	$wp_admin_bar->add_menu( array(
		'parent'    => 'wp-logo-external',
		'id'        => 'documentation',
		'title'     => __('Documentation'),
		'href'      => __('http://codex.wordpress.org/'),
	) );

	// Add forums link
	$wp_admin_bar->add_menu( array(
		'parent'    => 'wp-logo-external',
		'id'        => 'support-forums',
		'title'     => __('Support Forums'),
		'href'      => __('https://wordpress.org/support/'),
	) );

	// Add feedback link
	$wp_admin_bar->add_menu( array(
		'parent'    => 'wp-logo-external',
		'id'        => 'feedback',
		'title'     => __('Feedback'),
		'href'      => __('https://wordpress.org/support/forum/requests-and-feedback'),
	) );
}

/**
 * Add the sidebar toggle button.
 *
 * @since 3.8.0
 *
 * @param WP_Admin_Bar $wp_admin_bar
 */
function wp_admin_bar_sidebar_toggle( $wp_admin_bar ) {
	if ( is_admin() ) {
		$wp_admin_bar->add_menu( array(
			'id'    => 'menu-toggle',
			'title' => '<span class="ab-icon"></span><span class="screen-reader-text">' . __( 'Menu' ) . '</span>',
			'href'  => '#',
		) );
	}
}

/**
 * Add the "My Account" item.
 *
 * @since 3.3.0
 *
 * @param WP_Admin_Bar $wp_admin_bar
 */
function wp_admin_bar_my_account_item( $wp_admin_bar ) {
	$user_id      = get_current_user_id();
	$current_user = wp_get_current_user();
	$profile_url  = get_edit_profile_url( $user_id );

	if ( ! $user_id )
		return;

	$avatar = get_avatar( $user_id, 26 );
	$howdy  = sprintf( __('Howdy, %1$s'), $current_user->display_name );
	$class  = empty( $avatar ) ? '' : 'with-avatar';

	$wp_admin_bar->add_menu( array(
		'id'        => 'my-account',
		'parent'    => 'top-secondary',
		'title'     => $howdy . $avatar,
		'href'      => $profile_url,
		'meta'      => array(
			'class'     => $class,
			'title'     => __('My Account'),
		),
	) );
}

/**
 * Add the "My Account" submenu items.
 *
 * @since 3.1.0
 *
 * @param WP_Admin_Bar $wp_admin_bar
 */
function wp_admin_bar_my_account_menu( $wp_admin_bar ) {
	$user_id      = get_current_user_id();
	$current_user = wp_get_current_user();
	$profile_url  = get_edit_profile_url( $user_id );

	if ( ! $user_id )
		return;

	$wp_admin_bar->add_group( array(
		'parent' => 'my-account',
		'id'     => 'user-actions',
	) );

	$user_info  = get_avatar( $user_id, 64 );
	$user_info .= "<span class='display-name'>{$current_user->display_name}</span>";

	if ( $current_user->display_name !== $current_user->user_login )
		$user_info .= "<span class='username'>{$current_user->user_login}</span>";

	$wp_admin_bar->add_menu( array(
		'parent' => 'user-actions',
		'id'     => 'user-info',
		'title'  => $user_info,
		'href'   => $profile_url,
		'meta'   => array(
			'tabindex' => -1,
		),
	) );
	$wp_admin_bar->add_menu( array(
		'parent' => 'user-actions',
		'id'     => 'edit-profile',
		'title'  => __( 'Edit My Profile' ),
		'href' => $profile_url,
	) );
	$wp_admin_bar->add_menu( array(
		'parent' => 'user-actions',
		'id'     => 'logout',
		'title'  => __( 'Log Out' ),
		'href'   => wp_logout_url(),
	) );
}

/**
 * Add the "Site Name" menu.
 *
 * @since 3.3.0
 *
 * @param WP_Admin_Bar $wp_admin_bar
 */
function wp_admin_bar_site_menu( $wp_admin_bar ) {
	// Don't show for logged out users.
	if ( ! is_user_logged_in() )
		return;

	// Show only when the user is a member of this site, or they're a super admin.
	if ( ! is_user_member_of_blog() && ! is_super_admin() )
		return;

	$blogname = get_bloginfo('name');

	if ( empty( $blogname ) )
		$blogname = preg_replace( '#^(https?://)?(www.)?#', '', get_home_url() );

	if ( is_network_admin() ) {
		$blogname = sprintf( __('Network Admin: %s'), esc_html( get_current_site()->site_name ) );
	} elseif ( is_user_admin() ) {
		$blogname = sprintf( __('Global Dashboard: %s'), esc_html( get_current_site()->site_name ) );
	}

	$title = wp_html_excerpt( $blogname, 40, '&hellip;' );

	$wp_admin_bar->add_menu( array(
		'id'    => 'site-name',
		'title' => $title,
		'href'  => is_admin() ? home_url( '/' ) : admin_url(),
	) );

	// Create submenu items.

	if ( is_admin() ) {
		// Add an option to visit the site.
		$wp_admin_bar->add_menu( array(
			'parent' => 'site-name',
			'id'     => 'view-site',
			'title'  => __( 'Visit Site' ),
			'href'   => home_url( '/' ),
		) );

		if ( is_blog_admin() && is_multisite() && current_user_can( 'manage_sites' ) ) {
			$wp_admin_bar->add_menu( array(
				'parent' => 'site-name',
				'id'     => 'edit-site',
				'title'  => __( 'Edit Site' ),
				'href'   => network_admin_url( 'site-info.php?id=' . get_current_blog_id() ),
			) );
		}

	} else {
		// We're on the front end, link to the Dashboard.
		$wp_admin_bar->add_menu( array(
			'parent' => 'site-name',
			'id'     => 'dashboard',
			'title'  => __( 'Dashboard' ),
			'href'   => admin_url(),
		) );

		// Add the appearance submenu items.
		wp_admin_bar_appearance_menu( $wp_admin_bar );
	}
}

/**
 * Add the "My Sites/[Site Name]" menu and all submenus.
 *
 * @since 3.1.0
 *
 * @param WP_Admin_Bar $wp_admin_bar
 */
function wp_admin_bar_my_sites_menu( $wp_admin_bar ) {
	// Don't show for logged out users or single site mode.
	if ( ! is_user_logged_in() || ! is_multisite() )
		return;

	// Show only when the user has at least one site, or they're a super admin.
	if ( count( $wp_admin_bar->user->blogs ) < 1 && ! is_super_admin() )
		return;

	$wp_admin_bar->add_menu( array(
		'id'    => 'my-sites',
		'title' => __( 'My Sites' ),
		'href'  => admin_url( 'my-sites.php' ),
	) );

	if ( is_super_admin() ) {
		$wp_admin_bar->add_group( array(
			'parent' => 'my-sites',
			'id'     => 'my-sites-super-admin',
		) );

		$wp_admin_bar->add_menu( array(
			'parent' => 'my-sites-super-admin',
			'id'     => 'network-admin',
			'title'  => __('Network Admin'),
			'href'   => network_admin_url(),
		) );

		$wp_admin_bar->add_menu( array(
			'parent' => 'network-admin',
			'id'     => 'network-admin-d',
			'title'  => __( 'Dashboard' ),
			'href'   => network_admin_url(),
		) );
		$wp_admin_bar->add_menu( array(
			'parent' => 'network-admin',
			'id'     => 'network-admin-s',
			'title'  => __( 'Sites' ),
			'href'   => network_admin_url( 'sites.php' ),
		) );
		$wp_admin_bar->add_menu( array(
			'parent' => 'network-admin',
			'id'     => 'network-admin-u',
			'title'  => __( 'Users' ),
			'href'   => network_admin_url( 'users.php' ),
		) );
		$wp_admin_bar->add_menu( array(
			'parent' => 'network-admin',
			'id'     => 'network-admin-t',
			'title'  => __( 'Themes' ),
			'href'   => network_admin_url( 'themes.php' ),
		) );
		$wp_admin_bar->add_menu( array(
			'parent' => 'network-admin',
			'id'     => 'network-admin-p',
			'title'  => __( 'Plugins' ),
			'href'   => network_admin_url( 'plugins.php' ),
		) );
	}

	// Add site links
	$wp_admin_bar->add_group( array(
		'parent' => 'my-sites',
		'id'     => 'my-sites-list',
		'meta'   => array(
			'class' => is_super_admin() ? 'ab-sub-secondary' : '',
		),
	) );

	foreach ( (array) $wp_admin_bar->user->blogs as $blog ) {
		switch_to_blog( $blog->userblog_id );

		$blavatar = '<div class="blavatar"></div>';

		$blogname = empty( $blog->blogname ) ? $blog->domain : $blog->blogname;
		$menu_id  = 'blog-' . $blog->userblog_id;

		$wp_admin_bar->add_menu( array(
			'parent'    => 'my-sites-list',
			'id'        => $menu_id,
			'title'     => $blavatar . $blogname,
			'href'      => admin_url(),
		) );

		$wp_admin_bar->add_menu( array(
			'parent' => $menu_id,
			'id'     => $menu_id . '-d',
			'title'  => __( 'Dashboard' ),
			'href'   => admin_url(),
		) );

		if ( current_user_can( get_post_type_object( 'post' )->cap->create_posts ) ) {
			$wp_admin_bar->add_menu( array(
				'parent' => $menu_id,
				'id'     => $menu_id . '-n',
				'title'  => __( 'New Post' ),
				'href'   => admin_url( 'post-new.php' ),
			) );
		}

		if ( current_user_can( 'edit_posts' ) ) {
			$wp_admin_bar->add_menu( array(
				'parent' => $menu_id,
				'id'     => $menu_id . '-c',
				'title'  => __( 'Manage Comments' ),
				'href'   => admin_url( 'edit-comments.php' ),
			) );
		}

		$wp_admin_bar->add_menu( array(
			'parent' => $menu_id,
			'id'     => $menu_id . '-v',
			'title'  => __( 'Visit Site' ),
			'href'   => home_url( '/' ),
		) );

		restore_current_blog();
	}
}

/**
 * Provide a shortlink.
 *
 * @since 3.1.0
 *
 * @param WP_Admin_Bar $wp_admin_bar
 */
function wp_admin_bar_shortlink_menu( $wp_admin_bar ) {
	$short = wp_get_shortlink( 0, 'query' );
	$id = 'get-shortlink';

	if ( empty( $short ) )
		return;

	$html = '<input class="shortlink-input" type="text" readonly="readonly" value="' . esc_attr( $short ) . '" />';

	$wp_admin_bar->add_menu( array(
		'id' => $id,
		'title' => __( 'Shortlink' ),
		'href' => $short,
		'meta' => array( 'html' => $html ),
	) );
}

/**
 * Provide an edit link for posts and terms.
 *
 * @since 3.1.0
 *
 * @param WP_Admin_Bar $wp_admin_bar
 */
function wp_admin_bar_edit_menu( $wp_admin_bar ) {
	global $tag, $wp_the_query;

	if ( is_admin() ) {
		$current_screen = get_current_screen();
		$post = get_post();

		if ( 'post' == $current_screen->base
			&& 'add' != $current_screen->action
			&& ( $post_type_object = get_post_type_object( $post->post_type ) )
			&& current_user_can( 'read_post', $post->ID )
			&& ( $post_type_object->public )
			&& ( $post_type_object->show_in_admin_bar ) )
		{
			if( 'draft' == $post->post_status ) {
				$preview_link = set_url_scheme( get_permalink( $post->ID ) );
				/** This filter is documented in wp-admin/includes/meta-boxes.php */
				$preview_link = apply_filters( 'preview_post_link', add_query_arg( 'preview', 'true', $preview_link ), $post );
				$wp_admin_bar->add_menu( array(
					'id' => 'preview',
					'title' => $post_type_object->labels->view_item,
					'href' => esc_url( $preview_link ),
					'meta' => array( 'target' => 'wp-preview-' . $post->ID ),
				) );
			} else {
				$wp_admin_bar->add_menu( array(
					'id' => 'view',
					'title' => $post_type_object->labels->view_item,
					'href' => get_permalink( $post->ID )
				) );
			}
		} elseif ( 'edit-tags' == $current_screen->base
			&& isset( $tag ) && is_object( $tag )
			&& ( $tax = get_taxonomy( $tag->taxonomy ) )
			&& $tax->public )
		{
			$wp_admin_bar->add_menu( array(
				'id' => 'view',
				'title' => $tax->labels->view_item,
				'href' => get_term_link( $tag )
			) );
		}
	} else {
		$current_object = $wp_the_query->get_queried_object();

		if ( empty( $current_object ) )
			return;

		if ( ! empty( $current_object->post_type )
			&& ( $post_type_object = get_post_type_object( $current_object->post_type ) )
			&& current_user_can( 'edit_post', $current_object->ID )
			&& $post_type_object->show_ui && $post_type_object->show_in_admin_bar )
		{
			$wp_admin_bar->add_menu( array(
				'id' => 'edit',
				'title' => $post_type_object->labels->edit_item,
				'href' => get_edit_post_link( $current_object->ID )
			) );
		} elseif ( ! empty( $current_object->taxonomy )
			&& ( $tax = get_taxonomy( $current_object->taxonomy ) )
			&& current_user_can( $tax->cap->edit_terms )
			&& $tax->show_ui )
		{
			$wp_admin_bar->add_menu( array(
				'id' => 'edit',
				'title' => $tax->labels->edit_item,
				'href' => get_edit_term_link( $current_object->term_id, $current_object->taxonomy )
			) );
		}
	}
}

/**
 * Add "Add New" menu.
 *
 * @since 3.1.0
 *
 * @param WP_Admin_Bar $wp_admin_bar
 */
function wp_admin_bar_new_content_menu( $wp_admin_bar ) {
	$actions = array();

	$cpts = (array) get_post_types( array( 'show_in_admin_bar' => true ), 'objects' );

	if ( isset( $cpts['post'] ) && current_user_can( $cpts['post']->cap->create_posts ) )
		$actions[ 'post-new.php' ] = array( $cpts['post']->labels->name_admin_bar, 'new-post' );

	if ( isset( $cpts['attachment'] ) && current_user_can( 'upload_files' ) )
		$actions[ 'media-new.php' ] = array( $cpts['attachment']->labels->name_admin_bar, 'new-media' );

	if ( current_user_can( 'manage_links' ) )
		$actions[ 'link-add.php' ] = array( _x( 'Link', 'add new from admin bar' ), 'new-link' );

	if ( isset( $cpts['page'] ) && current_user_can( $cpts['page']->cap->create_posts ) )
		$actions[ 'post-new.php?post_type=page' ] = array( $cpts['page']->labels->name_admin_bar, 'new-page' );

	unset( $cpts['post'], $cpts['page'], $cpts['attachment'] );

	// Add any additional custom post types.
	foreach ( $cpts as $cpt ) {
		if ( ! current_user_can( $cpt->cap->create_posts ) )
			continue;

		$key = 'post-new.php?post_type=' . $cpt->name;
		$actions[ $key ] = array( $cpt->labels->name_admin_bar, 'new-' . $cpt->name );
	}
	// Avoid clash with parent node and a 'content' post type.
	if ( isset( $actions['post-new.php?post_type=content'] ) )
		$actions['post-new.php?post_type=content'][1] = 'add-new-content';

	if ( current_user_can( 'create_users' ) || current_user_can( 'promote_users' ) )
		$actions[ 'user-new.php' ] = array( _x( 'User', 'add new from admin bar' ), 'new-user' );

	if ( ! $actions )
		return;

	$title = '<span class="ab-icon"></span><span class="ab-label">' . _x( 'New', 'admin bar menu group label' ) . '</span>';

	$wp_admin_bar->add_menu( array(
		'id'    => 'new-content',
		'title' => $title,
		'href'  => admin_url( current( array_keys( $actions ) ) ),
		'meta'  => array(
			'title' => _x( 'Add New', 'admin bar menu group label' ),
		),
	) );

	foreach ( $actions as $link => $action ) {
		list( $title, $id ) = $action;

		$wp_admin_bar->add_menu( array(
			'parent'    => 'new-content',
			'id'        => $id,
			'title'     => $title,
			'href'      => admin_url( $link )
		) );
	}
}

/**
 * Add edit comments link with awaiting moderation count bubble.
 *
 * @since 3.1.0
 *
 * @param WP_Admin_Bar $wp_admin_bar
 */
function wp_admin_bar_comments_menu( $wp_admin_bar ) {
	if ( !current_user_can('edit_posts') )
		return;

	$awaiting_mod = wp_count_comments();
	$awaiting_mod = $awaiting_mod->moderated;
	$awaiting_title = esc_attr( sprintf( _n( '%s comment awaiting moderation', '%s comments awaiting moderation', $awaiting_mod ), number_format_i18n( $awaiting_mod ) ) );

	$icon  = '<span class="ab-icon"></span>';
	$title = '<span id="ab-awaiting-mod" class="ab-label awaiting-mod pending-count count-' . $awaiting_mod . '">' . number_format_i18n( $awaiting_mod ) . '</span>';

	$wp_admin_bar->add_menu( array(
		'id'    => 'comments',
		'title' => $icon . $title,
		'href'  => admin_url('edit-comments.php'),
		'meta'  => array( 'title' => $awaiting_title ),
	) );
}

/**
 * Add appearance submenu items to the "Site Name" menu.
 *
 * @since 3.1.0
 *
 * @param WP_Admin_Bar $wp_admin_bar
 */
function wp_admin_bar_appearance_menu( $wp_admin_bar ) {
	$wp_admin_bar->add_group( array( 'parent' => 'site-name', 'id' => 'appearance' ) );

	if ( current_user_can( 'switch_themes' ) || current_user_can( 'edit_theme_options' ) )
		$wp_admin_bar->add_menu( array( 'parent' => 'appearance', 'id' => 'themes', 'title' => __('Themes'), 'href' => admin_url('themes.php') ) );

	if ( ! current_user_can( 'edit_theme_options' ) )
		return;

	if ( current_user_can( 'customize' ) ) {
		$current_url = ( is_ssl() ? 'https://' : 'http://' ) . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'];
		$wp_admin_bar->add_menu( array(
			'parent' => 'appearance',
			'id'     => 'customize',
			'title'  => __('Customize'),
			'href'   => add_query_arg( 'url', urlencode( $current_url ), wp_customize_url() ),
			'meta'   => array(
				'class' => 'hide-if-no-customize',
			),
		) );
		add_action( 'wp_before_admin_bar_render', 'wp_customize_support_script' );
	}

	if ( current_theme_supports( 'widgets' )  )
		$wp_admin_bar->add_menu( array( 'parent' => 'appearance', 'id' => 'widgets', 'title' => __('Widgets'), 'href' => admin_url('widgets.php') ) );

	if ( current_theme_supports( 'menus' ) || current_theme_supports( 'widgets' ) )
		$wp_admin_bar->add_menu( array( 'parent' => 'appearance', 'id' => 'menus', 'title' => __('Menus'), 'href' => admin_url('nav-menus.php') ) );

	if ( current_theme_supports( 'custom-background' ) )
		$wp_admin_bar->add_menu( array( 'parent' => 'appearance', 'id' => 'background', 'title' => __('Background'), 'href' => admin_url('themes.php?page=custom-background') ) );

	if ( current_theme_supports( 'custom-header' ) )
		$wp_admin_bar->add_menu( array( 'parent' => 'appearance', 'id' => 'header', 'title' => __('Header'), 'href' => admin_url('themes.php?page=custom-header') ) );
}

/**
 * Provide an update link if theme/plugin/core updates are available.
 *
 * @since 3.1.0
 *
 * @param WP_Admin_Bar $wp_admin_bar
 */
function wp_admin_bar_updates_menu( $wp_admin_bar ) {

	$update_data = wp_get_update_data();

	if ( !$update_data['counts']['total'] )
		return;

	$title = '<span class="ab-icon"></span><span class="ab-label">' . number_format_i18n( $update_data['counts']['total'] ) . '</span>';
	$title .= '<span class="screen-reader-text">' . $update_data['title'] . '</span>';

	$wp_admin_bar->add_menu( array(
		'id'    => 'updates',
		'title' => $title,
		'href'  => network_admin_url( 'update-core.php' ),
		'meta'  => array(
			'title' => $update_data['title'],
		),
	) );
}

/**
 * Add search form.
 *
 * @since 3.3.0
 *
 * @param WP_Admin_Bar $wp_admin_bar
 */
function wp_admin_bar_search_menu( $wp_admin_bar ) {
	if ( is_admin() )
		return;

	$form  = '<form action="' . esc_url( home_url( '/' ) ) . '" method="get" id="adminbarsearch">';
	$form .= '<input class="adminbar-input" name="s" id="adminbar-search" type="text" value="" maxlength="150" />';
	$form .= '<input type="submit" class="adminbar-button" value="' . __('Search') . '"/>';
	$form .= '</form>';

	$wp_admin_bar->add_menu( array(
		'parent' => 'top-secondary',
		'id'     => 'search',
		'title'  => $form,
		'meta'   => array(
			'class'    => 'admin-bar-search',
			'tabindex' => -1,
		)
	) );
}

/**
 * Add secondary menus.
 *
 * @since 3.3.0
 *
 * @param WP_Admin_Bar $wp_admin_bar
 */
function wp_admin_bar_add_secondary_groups( $wp_admin_bar ) {
	$wp_admin_bar->add_group( array(
		'id'     => 'top-secondary',
		'meta'   => array(
			'class' => 'ab-top-secondary',
		),
	) );

	$wp_admin_bar->add_group( array(
		'parent' => 'wp-logo',
		'id'     => 'wp-logo-external',
		'meta'   => array(
			'class' => 'ab-sub-secondary',
		),
	) );
}

/**
 * Style and scripts for the admin bar.
 *
 * @since 3.1.0
 */
function wp_admin_bar_header() { ?>
<style type="text/css" media="print">#wpadminbar { display:none; }</style>
<?php
}

/**
 * Default admin bar callback.
 *
 * @since 3.1.0
 */
function _admin_bar_bump_cb() { ?>
<style type="text/css" media="screen">
	html { margin-top: 32px !important; }
	* html body { margin-top: 32px !important; }
	@media screen and ( max-width: 782px ) {
		html { margin-top: 46px !important; }
		* html body { margin-top: 46px !important; }
	}
</style>
<?php
}

/**
 * Set the display status of the admin bar.
 *
 * This can be called immediately upon plugin load. It does not need to be called from a function hooked to the init action.
 *
 * @since 3.1.0
 *
 * @param bool $show Whether to allow the admin bar to show.
 * @return void
 */
function show_admin_bar( $show ) {
	global $show_admin_bar;
	$show_admin_bar = (bool) $show;
}

/**
 * Determine whether the admin bar should be showing.
 *
 * @since 3.1.0
 *
 * @return bool Whether the admin bar should be showing.
 */
function is_admin_bar_showing() {
	global $show_admin_bar, $pagenow;

	// For all these types of requests, we never want an admin bar.
	if ( defined('XMLRPC_REQUEST') || defined('DOING_AJAX') || defined('IFRAME_REQUEST') )
		return false;

	// Integrated into the admin.
	if ( is_admin() )
		return true;

	if ( ! isset( $show_admin_bar ) ) {
		if ( ! is_user_logged_in() || 'wp-login.php' == $pagenow ) {
			$show_admin_bar = false;
		} else {
			$show_admin_bar = _get_admin_bar_pref();
		}
	}

	/**
	 * Filter whether to show the admin bar.
	 *
	 * Returning false to this hook is the recommended way to hide the admin bar.
	 * The user's display preference is used for logged in users.
	 *
	 * @since 3.1.0
	 *
	 * @param bool $show_admin_bar Whether the admin bar should be shown. Default false.
	 */
	$show_admin_bar = apply_filters( 'show_admin_bar', $show_admin_bar );

	return $show_admin_bar;
}

/**
 * Retrieve the admin bar display preference of a user.
 *
 * @since 3.1.0
 * @access private
 *
 * @param string $context Context of this preference check. Defaults to 'front'. The 'admin'
 * 	preference is no longer used.
 * @param int $user Optional. ID of the user to check, defaults to 0 for current user.
 * @return bool Whether the admin bar should be showing for this user.
 */
function _get_admin_bar_pref( $context = 'front', $user = 0 ) {
	$pref = get_user_option( "show_admin_bar_{$context}", $user );
	if ( false === $pref )
		return true;

	return 'true' === $pref;
}

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<?php

/**

* Admin Bar

* This code handles the building and rendering of the press bar.

/**

* Instantiate the admin bar object and set it up as a global for access elsewhere.

* UNHOOKING THIS FUNCTION WILL NOT PROPERLY REMOVE THE ADMIN BAR.

* For that, use show_admin_bar(false) or the 'show_admin_bar' filter.

* @since 3.1.0

* @access private

* @return bool Whether the admin bar was successfully initialized.

function _wp_admin_bar_init() {

global $wp_admin_bar;

if ( ! is_admin_bar_showing() )

return false;

/* Load the admin bar class code ready for instantiation */

require( ABSPATH . WPINC . '/class-wp-admin-bar.php' );

/* Instantiate the admin bar */

/**

* Filter the admin bar class to instantiate.

* @since 3.1.0

* @param string $wp_admin_bar_class Admin bar class to use. Default 'WP_Admin_Bar'.

$admin_bar_class = apply_filters( 'wp_admin_bar_class', 'WP_Admin_Bar' );

if ( class_exists( $admin_bar_class ) )

$wp_admin_bar = new $admin_bar_class;

else

return false;

$wp_admin_bar->initialize();

$wp_admin_bar->add_menus();

return true;

}

// Don't remove. Wrong way to disable.

add_action( 'template_redirect', '_wp_admin_bar_init', 0 );

add_action( 'admin_init', '_wp_admin_bar_init' );

/**

* Render the admin bar to the page based on the $wp_admin_bar->menu member var.

* This is called very late on the footer actions so that it will render after anything else being

* added to the footer.

* It includes the action "admin_bar_menu" which should be used to hook in and

* add new menus to the admin bar. That way you can be sure that you are adding at most optimal point,

* right before the admin bar is rendered. This also gives you access to the $post global, among others.

* @since 3.1.0

function wp_admin_bar_render() {

global $wp_admin_bar;

if ( ! is_admin_bar_showing() || ! is_object( $wp_admin_bar ) )

return false;

/**

* Load all necessary admin bar items.

* This is the hook used to add, remove, or manipulate admin bar items.

* @since 3.1.0

* @param WP_Admin_Bar $wp_admin_bar WP_Admin_Bar instance, passed by reference

do_action_ref_array( 'admin_bar_menu', array( &$wp_admin_bar ) );

/**

* Fires before the admin bar is rendered.

* @since 3.1.0

do_action( 'wp_before_admin_bar_render' );

$wp_admin_bar->render();

/**

* Fires after the admin bar is rendered.

* @since 3.1.0

do_action( 'wp_after_admin_bar_render' );

}

add_action( 'wp_footer', 'wp_admin_bar_render', 1000 );

add_action( 'in_admin_header', 'wp_admin_bar_render', 0 );

/**

* Add the WordPress logo menu.

* @since 3.3.0

* @param WP_Admin_Bar $wp_admin_bar

function wp_admin_bar_wp_menu( $wp_admin_bar ) {

$wp_admin_bar->add_menu( array(

'id' => 'wp-logo',

'title' => '<span class="ab-icon"></span>',

'href' => self_admin_url( 'about.php' ),

'meta' => array(

'title' => __('About WordPress'),

) );

if ( is_user_logged_in() ) {

// Add "About WordPress" link

$wp_admin_bar->add_menu( array(

'parent' => 'wp-logo',

'id' => 'about',

'title' => __('About WordPress'),

'href' => self_admin_url( 'about.php' ),

) );

}

// Add WordPress.org link

$wp_admin_bar->add_menu( array(

'parent' => 'wp-logo-external',

'id' => 'wporg',

'title' => __('WordPress.org'),

'href' => __('https://wordpress.org/'),

) );

// Add codex link

$wp_admin_bar->add_menu( array(

'parent' => 'wp-logo-external',

'id' => 'documentation',

'title' => __('Documentation'),

'href' => __('http://codex.wordpress.org/'),

) );

// Add forums link

$wp_admin_bar->add_menu( array(

'parent' => 'wp-logo-external',

'id' => 'support-forums',

'title' => __('Support Forums'),

'href' => __('https://wordpress.org/support/'),

) );

// Add feedback link

$wp_admin_bar->add_menu( array(

'parent' => 'wp-logo-external',

'id' => 'feedback',

'title' => __('Feedback'),

'href' => __('https://wordpress.org/support/forum/requests-and-feedback'),

) );

}

/**

* Add the sidebar toggle button.

* @since 3.8.0

* @param WP_Admin_Bar $wp_admin_bar

function wp_admin_bar_sidebar_toggle( $wp_admin_bar ) {

if ( is_admin() ) {

$wp_admin_bar->add_menu( array(

'id' => 'menu-toggle',

'title' => '<span class="ab-icon"></span><span class="screen-reader-text">' . __( 'Menu' ) . '</span>',

'href' => '#',

) );

}

/**

* Add the "My Account" item.

* @since 3.3.0

* @param WP_Admin_Bar $wp_admin_bar

function wp_admin_bar_my_account_item( $wp_admin_bar ) {

$user_id = get_current_user_id();

$current_user = wp_get_current_user();

$profile_url = get_edit_profile_url( $user_id );

if ( ! $user_id )

return;

$avatar = get_avatar( $user_id, 26 );

$howdy = sprintf( __('Howdy, %1$s'), $current_user->display_name );

$class = empty( $avatar ) ? '' : 'with-avatar';

$wp_admin_bar->add_menu( array(

'id' => 'my-account',

'parent' => 'top-secondary',

'title' => $howdy . $avatar,

'href' => $profile_url,

'meta' => array(

'class' => $class,

'title' => __('My Account'),

) );

}

/**

* Add the "My Account" submenu items.

* @since 3.1.0

* @param WP_Admin_Bar $wp_admin_bar

function wp_admin_bar_my_account_menu( $wp_admin_bar ) {

$user_id = get_current_user_id();

$current_user = wp_get_current_user();

$profile_url = get_edit_profile_url( $user_id );

if ( ! $user_id )

return;

$wp_admin_bar->add_group( array(

'parent' => 'my-account',

'id' => 'user-actions',

) );

$user_info = get_avatar( $user_id, 64 );

$user_info .= "<span class='display-name'>{$current_user->display_name}</span>";

if ( $current_user->display_name !== $current_user->user_login )

$user_info .= "<span class='username'>{$current_user->user_login}</span>";

$wp_admin_bar->add_menu( array(

'parent' => 'user-actions',

'id' => 'user-info',

'title' => $user_info,

'href' => $profile_url,

'meta' => array(

'tabindex' => -1,

) );

$wp_admin_bar->add_menu( array(

'parent' => 'user-actions',

'id' => 'edit-profile',

'title' => __( 'Edit My Profile' ),

'href' => $profile_url,

) );

$wp_admin_bar->add_menu( array(

'parent' => 'user-actions',

'id' => 'logout',

'title' => __( 'Log Out' ),

'href' => wp_logout_url(),

) );

}

/**

* Add the "Site Name" menu.

* @since 3.3.0

* @param WP_Admin_Bar $wp_admin_bar

function wp_admin_bar_site_menu( $wp_admin_bar ) {

// Don't show for logged out users.

if ( ! is_user_logged_in() )

return;

// Show only when the user is a member of this site, or they're a super admin.

if ( ! is_user_member_of_blog() && ! is_super_admin() )

return;

$blogname = get_bloginfo('name');

if ( empty( $blogname ) )

$blogname = preg_replace( '#^(https?://)?(www.)?#', '', get_home_url() );

if ( is_network_admin() ) {

$blogname = sprintf( __('Network Admin: %s'), esc_html( get_current_site()->site_name ) );

} elseif ( is_user_admin() ) {

$blogname = sprintf( __('Global Dashboard: %s'), esc_html( get_current_site()->site_name ) );

}

$title = wp_html_excerpt( $blogname, 40, '…' );

$wp_admin_bar->add_menu( array(

'id' => 'site-name',

'title' => $title,

'href' => is_admin() ? home_url( '/' ) : admin_url(),

) );

// Create submenu items.

if ( is_admin() ) {

// Add an option to visit the site.

$wp_admin_bar->add_menu( array(

'parent' => 'site-name',

'id' => 'view-site',

'title' => __( 'Visit Site' ),

'href' => home_url( '/' ),

) );

if ( is_blog_admin() && is_multisite() && current_user_can( 'manage_sites' ) ) {

$wp_admin_bar->add_menu( array(

'parent' => 'site-name',

'id' => 'edit-site',

'title' => __( 'Edit Site' ),

'href' => network_admin_url( 'site-info.php?id=' . get_current_blog_id() ),

) );

}

} else {

// We're on the front end, link to the Dashboard.

$wp_admin_bar->add_menu( array(

'parent' => 'site-name',

'id' => 'dashboard',

'title' => __( 'Dashboard' ),

'href' => admin_url(),

) );

// Add the appearance submenu items.

wp_admin_bar_appearance_menu( $wp_admin_bar );

}

/**

* Add the "My Sites/[Site Name]" menu and all submenus.

* @since 3.1.0

* @param WP_Admin_Bar $wp_admin_bar

function wp_admin_bar_my_sites_menu( $wp_admin_bar ) {

// Don't show for logged out users or single site mode.

if ( ! is_user_logged_in() || ! is_multisite() )

return;

// Show only when the user has at least one site, or they're a super admin.

if ( count( $wp_admin_bar->user->blogs ) < 1 && ! is_super_admin() )

return;

$wp_admin_bar->add_menu( array(

'id' => 'my-sites',

'title' => __( 'My Sites' ),

'href' => admin_url( 'my-sites.php' ),

) );

if ( is_super_admin() ) {

$wp_admin_bar->add_group( array(

'parent' => 'my-sites',

'id' => 'my-sites-super-admin',

) );

$wp_admin_bar->add_menu( array(

'parent' => 'my-sites-super-admin',

'id' => 'network-admin',

'title' => __('Network Admin'),

'href' => network_admin_url(),

) );

$wp_admin_bar->add_menu( array(

'parent' => 'network-admin',

'id' => 'network-admin-d',

'title' => __( 'Dashboard' ),

'href' => network_admin_url(),

) );

$wp_admin_bar->add_menu( array(

'parent' => 'network-admin',

'id' => 'network-admin-s',

'title' => __( 'Sites' ),

'href' => network_admin_url( 'sites.php' ),

) );

$wp_admin_bar->add_menu( array(

'parent' => 'network-admin',

'id' => 'network-admin-u',

'title' => __( 'Users' ),

'href' => network_admin_url( 'users.php' ),

) );

$wp_admin_bar->add_menu( array(

'parent' => 'network-admin',

'id' => 'network-admin-t',

'title' => __( 'Themes' ),

'href' => network_admin_url( 'themes.php' ),

) );

$wp_admin_bar->add_menu( array(

'parent' => 'network-admin',

'id' => 'network-admin-p',

'title' => __( 'Plugins' ),

'href' => network_admin_url( 'plugins.php' ),

) );

}

// Add site links

$wp_admin_bar->add_group( array(

'parent' => 'my-sites',

'id' => 'my-sites-list',

'meta' => array(

'class' => is_super_admin() ? 'ab-sub-secondary' : '',

) );

foreach ( (array) $wp_admin_bar->user->blogs as $blog ) {

switch_to_blog( $blog->userblog_id );

$blavatar = '<div class="blavatar"></div>';

$blogname = empty( $blog->blogname ) ? $blog->domain : $blog->blogname;

$menu_id = 'blog-' . $blog->userblog_id;

$wp_admin_bar->add_menu( array(

'parent' => 'my-sites-list',

'id' => $menu_id,

'title' => $blavatar . $blogname,

'href' => admin_url(),

) );

$wp_admin_bar->add_menu( array(

'parent' => $menu_id,

'id' => $menu_id . '-d',

'title' => __( 'Dashboard' ),

'href' => admin_url(),

) );

if ( current_user_can( get_post_type_object( 'post' )->cap->create_posts ) ) {

$wp_admin_bar->add_menu( array(

'parent' => $menu_id,

'id' => $menu_id . '-n',

'title' => __( 'New Post' ),

'href' => admin_url( 'post-new.php' ),

) );

}

if ( current_user_can( 'edit_posts' ) ) {

$wp_admin_bar->add_menu( array(

'parent' => $menu_id,

'id' => $menu_id . '-c',

'title' => __( 'Manage Comments' ),

'href' => admin_url( 'edit-comments.php' ),

) );

}

$wp_admin_bar->add_menu( array(

'parent' => $menu_id,

'id' => $menu_id . '-v',

'title' => __( 'Visit Site' ),

'href' => home_url( '/' ),

) );

restore_current_blog();

}

/**

* Provide a shortlink.

* @since 3.1.0

* @param WP_Admin_Bar $wp_admin_bar

function wp_admin_bar_shortlink_menu( $wp_admin_bar ) {

$short = wp_get_shortlink( 0, 'query' );

$id = 'get-shortlink';

if ( empty( $short ) )

return;

$html = '<input class="shortlink-input" type="text" readonly="readonly" value="' . esc_attr( $short ) . '" />';

$wp_admin_bar->add_menu( array(

'id' => $id,

'title' => __( 'Shortlink' ),

'href' => $short,

'meta' => array( 'html' => $html ),

) );

}

/**

* Provide an edit link for posts and terms.

* @since 3.1.0

* @param WP_Admin_Bar $wp_admin_bar

function wp_admin_bar_edit_menu( $wp_admin_bar ) {

global $tag, $wp_the_query;

if ( is_admin() ) {

$current_screen = get_current_screen();

$post = get_post();

if ( 'post' == $current_screen->base

&& 'add' != $current_screen->action

&& ( $post_type_object = get_post_type_object( $post->post_type ) )

&& current_user_can( 'read_post', $post->ID )

&& ( $post_type_object->public )

&& ( $post_type_object->show_in_admin_bar ) )

{

if( 'draft' == $post->post_status ) {

$preview_link = set_url_scheme( get_permalink( $post->ID ) );

/** This filter is documented in wp-admin/includes/meta-boxes.php */

$preview_link = apply_filters( 'preview_post_link', add_query_arg( 'preview', 'true', $preview_link ), $post );

$wp_admin_bar->add_menu( array(

'id' => 'preview',

'title' => $post_type_object->labels->view_item,

'href' => esc_url( $preview_link ),

'meta' => array( 'target' => 'wp-preview-' . $post->ID ),

) );

} else {

$wp_admin_bar->add_menu( array(

'id' => 'view',

'title' => $post_type_object->labels->view_item,

'href' => get_permalink( $post->ID )

) );

}

} elseif ( 'edit-tags' == $current_screen->base

&& isset( $tag ) && is_object( $tag )

&& ( $tax = get_taxonomy( $tag->taxonomy ) )

&& $tax->public )

{

$wp_admin_bar->add_menu( array(

'id' => 'view',

'title' => $tax->labels->view_item,

'href' => get_term_link( $tag )

) );

}

} else {

$current_object = $wp_the_query->get_queried_object();

if ( empty( $current_object ) )

return;

if ( ! empty( $current_object->post_type )

&& ( $post_type_object = get_post_type_object( $current_object->post_type ) )

&& current_user_can( 'edit_post', $current_object->ID )

&& $post_type_object->show_ui && $post_type_object->show_in_admin_bar )

{

$wp_admin_bar->add_menu( array(

'id' => 'edit',

'title' => $post_type_object->labels->edit_item,

'href' => get_edit_post_link( $current_object->ID )

) );

} elseif ( ! empty( $current_object->taxonomy )

&& ( $tax = get_taxonomy( $current_object->taxonomy ) )

&& current_user_can( $tax->cap->edit_terms )

&& $tax->show_ui )

{

$wp_admin_bar->add_menu( array(

'id' => 'edit',

'title' => $tax->labels->edit_item,

'href' => get_edit_term_link( $current_object->term_id, $current_object->taxonomy )

) );

}

/**

* Add "Add New" menu.

* @since 3.1.0

* @param WP_Admin_Bar $wp_admin_bar

function wp_admin_bar_new_content_menu( $wp_admin_bar ) {

$actions = array();

$cpts = (array) get_post_types( array( 'show_in_admin_bar' => true ), 'objects' );

if ( isset( $cpts['post'] ) && current_user_can( $cpts['post']->cap->create_posts ) )

$actions[ 'post-new.php' ] = array( $cpts['post']->labels->name_admin_bar, 'new-post' );

if ( isset( $cpts['attachment'] ) && current_user_can( 'upload_files' ) )

$actions[ 'media-new.php' ] = array( $cpts['attachment']->labels->name_admin_bar, 'new-media' );

if ( current_user_can( 'manage_links' ) )

$actions[ 'link-add.php' ] = array( _x( 'Link', 'add new from admin bar' ), 'new-link' );

if ( isset( $cpts['page'] ) && current_user_can( $cpts['page']->cap->create_posts ) )

$actions[ 'post-new.php?post_type=page' ] = array( $cpts['page']->labels->name_admin_bar, 'new-page' );

unset( $cpts['post'], $cpts['page'], $cpts['attachment'] );

// Add any additional custom post types.

foreach ( $cpts as $cpt ) {

if ( ! current_user_can( $cpt->cap->create_posts ) )

continue;

$key = 'post-new.php?post_type=' . $cpt->name;

$actions[ $key ] = array( $cpt->labels->name_admin_bar, 'new-' . $cpt->name );

}

// Avoid clash with parent node and a 'content' post type.

if ( isset( $actions['post-new.php?post_type=content'] ) )

$actions['post-new.php?post_type=content'][1] = 'add-new-content';

if ( current_user_can( 'create_users' ) || current_user_can( 'promote_users' ) )

$actions[ 'user-new.php' ] = array( _x( 'User', 'add new from admin bar' ), 'new-user' );

if ( ! $actions )

return;

$title = '<span class="ab-icon"></span><span class="ab-label">' . _x( 'New', 'admin bar menu group label' ) . '</span>';

$wp_admin_bar->add_menu( array(

'id' => 'new-content',

'title' => $title,

'href' => admin_url( current( array_keys( $actions ) ) ),

'meta' => array(

'title' => _x( 'Add New', 'admin bar menu group label' ),

) );

foreach ( $actions as $link => $action ) {

list( $title, $id ) = $action;

$wp_admin_bar->add_menu( array(

'parent' => 'new-content',

'id' => $id,

'title' => $title,

'href' => admin_url( $link )

) );

}

/**

* Add edit comments link with awaiting moderation count bubble.

* @since 3.1.0

* @param WP_Admin_Bar $wp_admin_bar

function wp_admin_bar_comments_menu( $wp_admin_bar ) {

if ( !current_user_can('edit_posts') )

return;

$awaiting_mod = wp_count_comments();

$awaiting_mod = $awaiting_mod->moderated;

$awaiting_title = esc_attr( sprintf( _n( '%s comment awaiting moderation', '%s comments awaiting moderation', $awaiting_mod ), number_format_i18n( $awaiting_mod ) ) );

$icon = '<span class="ab-icon"></span>';

$title = '<span id="ab-awaiting-mod" class="ab-label awaiting-mod pending-count count-' . $awaiting_mod . '">' . number_format_i18n( $awaiting_mod ) . '</span>';

$wp_admin_bar->add_menu( array(

'id' => 'comments',

'title' => $icon . $title,

'href' => admin_url('edit-comments.php'),

'meta' => array( 'title' => $awaiting_title ),

) );

}

/**

* Add appearance submenu items to the "Site Name" menu.

* @since 3.1.0

* @param WP_Admin_Bar $wp_admin_bar

function wp_admin_bar_appearance_menu( $wp_admin_bar ) {

$wp_admin_bar->add_group( array( 'parent' => 'site-name', 'id' => 'appearance' ) );

if ( current_user_can( 'switch_themes' ) || current_user_can( 'edit_theme_options' ) )

$wp_admin_bar->add_menu( array( 'parent' => 'appearance', 'id' => 'themes', 'title' => __('Themes'), 'href' => admin_url('themes.php') ) );

if ( ! current_user_can( 'edit_theme_options' ) )

return;

if ( current_user_can( 'customize' ) ) {

$current_url = ( is_ssl() ? 'https://' : 'http://' ) . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'];

$wp_admin_bar->add_menu( array(

'parent' => 'appearance',

'id' => 'customize',

'title' => __('Customize'),

'href' => add_query_arg( 'url', urlencode( $current_url ), wp_customize_url() ),

'meta' => array(

'class' => 'hide-if-no-customize',

) );

add_action( 'wp_before_admin_bar_render', 'wp_customize_support_script' );

}

if ( current_theme_supports( 'widgets' ) )

$wp_admin_bar->add_menu( array( 'parent' => 'appearance', 'id' => 'widgets', 'title' => __('Widgets'), 'href' => admin_url('widgets.php') ) );

if ( current_theme_supports( 'menus' ) || current_theme_supports( 'widgets' ) )

$wp_admin_bar->add_menu( array( 'parent' => 'appearance', 'id' => 'menus', 'title' => __('Menus'), 'href' => admin_url('nav-menus.php') ) );

if ( current_theme_supports( 'custom-background' ) )

$wp_admin_bar->add_menu( array( 'parent' => 'appearance', 'id' => 'background', 'title' => __('Background'), 'href' => admin_url('themes.php?page=custom-background') ) );

if ( current_theme_supports( 'custom-header' ) )

$wp_admin_bar->add_menu( array( 'parent' => 'appearance', 'id' => 'header', 'title' => __('Header'), 'href' => admin_url('themes.php?page=custom-header') ) );

}

/**

* Provide an update link if theme/plugin/core updates are available.

* @since 3.1.0

* @param WP_Admin_Bar $wp_admin_bar

function wp_admin_bar_updates_menu( $wp_admin_bar ) {

$update_data = wp_get_update_data();

if ( !$update_data['counts']['total'] )

return;

$title = '<span class="ab-icon"></span><span class="ab-label">' . number_format_i18n( $update_data['counts']['total'] ) . '</span>';

$title .= '<span class="screen-reader-text">' . $update_data['title'] . '</span>';

$wp_admin_bar->add_menu( array(

'id' => 'updates',

'title' => $title,

'href' => network_admin_url( 'update-core.php' ),

'meta' => array(

'title' => $update_data['title'],

) );

}

/**

* Add search form.

* @since 3.3.0

* @param WP_Admin_Bar $wp_admin_bar

function wp_admin_bar_search_menu( $wp_admin_bar ) {

if ( is_admin() )

return;

$form = '<form action="' . esc_url( home_url( '/' ) ) . '" method="get" id="adminbarsearch">';

$form .= '<input class="adminbar-input" name="s" id="adminbar-search" type="text" value="" maxlength="150" />';

$form .= '<input type="submit" class="adminbar-button" value="' . __('Search') . '"/>';

$form .= '</form>';

$wp_admin_bar->add_menu( array(

'parent' => 'top-secondary',

'id' => 'search',

'title' => $form,

'meta' => array(

'class' => 'admin-bar-search',

'tabindex' => -1,

)

) );

}

/**

* Add secondary menus.

* @since 3.3.0

* @param WP_Admin_Bar $wp_admin_bar

function wp_admin_bar_add_secondary_groups( $wp_admin_bar ) {

$wp_admin_bar->add_group( array(

'id' => 'top-secondary',

'meta' => array(

'class' => 'ab-top-secondary',

) );

$wp_admin_bar->add_group( array(

'parent' => 'wp-logo',

'id' => 'wp-logo-external',

'meta' => array(

'class' => 'ab-sub-secondary',

) );

}

/**

* Style and scripts for the admin bar.

* @since 3.1.0

function wp_admin_bar_header() { ?>

<?php

}

/**

* Default admin bar callback.

* @since 3.1.0

function _admin_bar_bump_cb() { ?>

html { margin-top: 32px !important; }

* html body { margin-top: 32px !important; }

@media screen and ( max-width: 782px ) {

html { margin-top: 46px !important; }

* html body { margin-top: 46px !important; }

}

</style>

<?php

}

/**

* Set the display status of the admin bar.

* This can be called immediately upon plugin load. It does not need to be called from a function hooked to the init action.

* @since 3.1.0

* @param bool $show Whether to allow the admin bar to show.

* @return void

function show_admin_bar( $show ) {

global $show_admin_bar;

$show_admin_bar = (bool) $show;

}

/**

* Determine whether the admin bar should be showing.

* @since 3.1.0

* @return bool Whether the admin bar should be showing.

function is_admin_bar_showing() {

global $show_admin_bar, $pagenow;

// For all these types of requests, we never want an admin bar.

if ( defined('XMLRPC_REQUEST') || defined('DOING_AJAX') || defined('IFRAME_REQUEST') )

return false;

// Integrated into the admin.

if ( is_admin() )

return true;

if ( ! isset( $show_admin_bar ) ) {

if ( ! is_user_logged_in() || 'wp-login.php' == $pagenow ) {

$show_admin_bar = false;

} else {

$show_admin_bar = _get_admin_bar_pref();

}

/**

* Filter whether to show the admin bar.

* Returning false to this hook is the recommended way to hide the admin bar.

* The user's display preference is used for logged in users.

* @since 3.1.0

* @param bool $show_admin_bar Whether the admin bar should be shown. Default false.

$show_admin_bar = apply_filters( 'show_admin_bar', $show_admin_bar );

return $show_admin_bar;

}

/**

* Retrieve the admin bar display preference of a user.

* @since 3.1.0

* @access private

* @param string $context Context of this preference check. Defaults to 'front'. The 'admin'

* preference is no longer used.

* @param int $user Optional. ID of the user to check, defaults to 0 for current user.

* @return bool Whether the admin bar should be showing for this user.

function _get_admin_bar_pref( $context = 'front', $user = 0 ) {

$pref = get_user_option( "show_admin_bar_{$context}", $user );

if ( false === $pref )

return true;

return 'true' === $pref;

}

: WordPressを読む　32-4 /blog/wp-includes/user.php 4
目次1 /blog/wp-includes/user.php 42 関数　upd …

: WordPressを読む　25-1 /blog/wp-includes/formatting.php 1
目次1 /blog/wp-includes/formatting.php2 関数 …

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: WordPressを読む　25-11 /blog/wp-includes/formatting.php 11
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: WordPressを読む　38-12 /blog/wp-includes/post.php 12
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