'515151',
'default-image' => '',
// Set height and width, with a maximum value for the width.
'height' => 250,
'width' => 960,
'max-width' => 2000,
// Support flexible height and width.
'flex-height' => true,
'flex-width' => true,
// Random image rotation off by default.
'random-default' => false,
// Callbacks for styling the header and the admin preview.
'wp-head-callback' => 'twentytwelve_header_style',
'admin-head-callback' => 'twentytwelve_admin_header_style',
'admin-preview-callback' => 'twentytwelve_admin_header_image',
);
add_theme_support( 'custom-header', $args );
}
add_action( 'after_setup_theme', 'twentytwelve_custom_header_setup' );
/**
* Load our special font CSS file.
*
* @since Twenty Twelve 1.2
*/
function twentytwelve_custom_header_fonts() {
$font_url = twentytwelve_get_font_url();
if ( ! empty( $font_url ) ) {
wp_enqueue_style( 'twentytwelve-fonts', esc_url_raw( $font_url ), array(), null );
}
}
add_action( 'admin_print_styles-appearance_page_custom-header', 'twentytwelve_custom_header_fonts' );
/**
* Style the header text displayed on the blog.
*
* get_header_textcolor() options: 515151 is default, hide text (returns 'blank'), or any hex value.
*
* @since Twenty Twelve 1.0
*/
function twentytwelve_header_style() {
$text_color = get_header_textcolor();
// If no custom options for text are set, let's bail.
if ( get_theme_support( 'custom-header', 'default-text-color' ) === $text_color ) {
return;
}
// If we get this far, we have custom styles.
?>
Header admin panel.
*
* @since Twenty Twelve 1.0
*/
function twentytwelve_admin_header_style() {
?>
Header admin panel.
*
* This callback overrides the default markup displayed there.
*
* @since Twenty Twelve 1.0
*/
function twentytwelve_admin_header_image() {
$style = 'color: #' . get_header_textcolor() . ';';
if ( ! display_header_text() ) {
$style = 'display: none;';
}
?>
get_bloginfo( 'name', 'display' ),
'class' => 'header-image',
'height' => $custom_header->height,
'width' => $custom_header->width,
);
if ( function_exists( 'the_header_image_tag' ) ) {
the_header_image_tag( $attrs );
return;
}
?>
![<?php echo esc_attr( $attrs['alt'] ); ?>](<?php header_image(); ?>)