' . __( 'Add additional CSS to your admin pages, which allows you to tweak the appearance of the WordPress administration pages to your liking.', 'add-admin-css' ) . '
'; echo '' . __( 'See the "Advanced Tips" tab in the "Help" section for info on how to use the plugin to programmatically customize CSS.', 'add-admin-css' ) . '
'; echo '' . sprintf( __( 'TIP: If you are primarily only interested in hiding certain administration interface elements, take a look at my Admin Trim Interface plugin. If you only want to hide in-page help text, check out my Admin Expert Mode plugin. Both plugins are geared toward their respective tasks and are very simple to use, requiring no knowledge of CSS.', 'add-admin-css' ), 'https://wordpress.org/plugins/admin-trim-interface/', 'https://wordpress.org/plugins/admin-expert-mode/' ) . '
'; } /** * Configures help tabs content. * * @since 1.2 */ public function help_tabs_content( $screen ) { $screen->add_help_tab( array( 'id' => 'c2c-advanced-tips-' . $this->id_base, 'title' => __( 'Advanced Tips', 'add-admin-css' ), 'content' => self::contextual_help( '', $this->options_page ) ) ); parent::help_tabs_content( $screen ); } /** * Outputs advanced tips text * * @since 1.2 * * @param string $contextual_help The default contextual help * @param int $screen_id The screen ID * @param object $screen The screen object (only supplied in WP 3.0) */ public function contextual_help( $contextual_help, $screen_id, $screen = null ) { if ( $screen_id != $this->options_page ) { return $contextual_help; } $help = '' . __( 'You can also programmatically add to or customize any CSS defined in the "Admin CSS" field via the c2c_add_admin_css filter, like so:', 'add-admin-css' ) . '
function my_admin_css( \$css ) {
\$css .= "
#site-heading a span { color:blue !important; }
#favorite-actions { display:none; }
";
return \$css;
}
add_filter( 'c2c_add_admin_css', 'my_admin_css' );
HTML;
$help .= '' . __( 'You can also programmatically add to or customize any referenced CSS files defined in the "Admin CSS Files" field via the c2c_add_admin_css_files filter, like so:', 'add-admin-css' ) . '
function my_admin_css_files( \$files ) {
\$files[] = 'http://yui.yahooapis.com/2.9.0/build/reset/reset-min.css';
return \$files;
}
add_filter( 'c2c_add_admin_css_files', 'my_admin_css_files' );
HTML;
return $help;
}
/**
* Shows settings admin notices.
*
* Settings notices are only shown for admin pages listed under Settings.
* This plugin has its settings page under Appearance.
*
* @since 1.6
*/
public function show_admin_notices() {
// Bail if not on the plugin setting page.
if ( $this->options_page !== get_current_screen()->id ) {
return;
}
settings_errors();
}
/**
* Register CSS files
*
* @return array Array of CSS files
*/
public function get_css_files() {
$options = $this->get_options();
return apply_filters( 'c2c_add_admin_css_files', $options['files'] );
}
/**
* Register CSS files
*/
public function register_css_files() {
$files = $this->get_css_files();
if ( $files ) {
foreach ( (array) $files as $file ) {
// Determine an adequate handle for the script.
$file_parts = parse_url( $file );
$handle = basename( $file_parts['path'], '.css' );
// Determine a version for the script (the one specified, else the plugin's version).
if ( isset( $file_parts['query'] ) ) {
parse_str( $file_parts['query'], $file_query );
}
$version = ( ! empty( $file_query ) && isset( $file_query['ver'] ) ) ? $file_query['ver'] : $this->version;
unset( $file_query );
// FYI: There is still the potential for duplicate handles, which preclude subsequent uses from registering
if ( strpos( $file, '://' ) !== false ) {
$src = $file;
$handle .= '-remote';
} elseif ( '/' == $file[0] ) {
$src = trailingslashit( get_option( 'siteurl' ) ) . ltrim( $file, '/' );
} else {
$src = trailingslashit( get_stylesheet_directory_uri() ) . $file;
}
$this->css_file_handles[] = $handle;
wp_register_style( $handle, $src, array(), $version, 'all' );
}
}
}
/**
* Outputs CSS as header links and/or inline header styles
*/
public function add_css() {
global $wp_styles;
$options = $this->get_options();
if ( ! empty( $this->css_file_handles ) ) {
$wp_styles->do_items( $this->css_file_handles );
}
$css = trim( apply_filters( 'c2c_add_admin_css', $options['css'] . "\n" ) );
if ( ! empty( $css ) ) {
echo "
";
}
}
/**
* Initializes CodeMirror for the CSS textarea.
*
* @since 1.6
*/
public function add_codemirror() {
// Bail if not on the plugin setting page.
if ( $this->options_page !== get_current_screen()->id ) {
return;
}
// Bail if the code editor script hasn't been registered.
if ( ! wp_script_is( 'code-editor', 'registered' ) ) {
return;
}
// Enqueue code editor and settings for manipulating CSS.
$settings = wp_enqueue_code_editor( array( 'type' => 'text/css' ) );
// Bail if user disabled CodeMirror.
if ( false === $settings ) {
return;
}
// Inline the CodeMirror code.
wp_add_inline_script(
'code-editor',
sprintf(
'jQuery( function() { wp.codeEditor.initialize( "css", %s ); } );',
wp_json_encode( $settings )
)
);
}
} // end c2c_AddAdminCSS
c2c_AddAdminCSS::instance();
endif; // end if !class_exists()