admin_header_callback = $admin_header_callback;
$this->admin_image_div_callback = $admin_image_div_callback;
}
/**
* Set up the hooks for the Custom Header admin page.
*
* @since 2.1.0
*/
function init() {
if ( ! current_user_can('edit_theme_options') )
return;
$this->page = $page = add_theme_page(__('Header'), __('Header'), 'edit_theme_options', 'custom-header', array(&$this, 'admin_page'));
add_action("admin_print_scripts-$page", array(&$this, 'js_includes'));
add_action("admin_print_styles-$page", array(&$this, 'css_includes'));
add_action("admin_head-$page", array(&$this, 'help') );
add_action("admin_head-$page", array(&$this, 'take_action'), 50);
add_action("admin_head-$page", array(&$this, 'js'), 50);
add_action("admin_head-$page", $this->admin_header_callback, 51);
}
/**
* Adds contextual help.
*
* @since 3.0.0
*/
function help() {
get_current_screen()->add_help_tab( array(
'id' => 'overview',
'title' => __('Overview'),
'content' =>
'' . __( 'You can set a custom image header for your site. Simply upload the image and crop it, and the new header will go live immediately.' ) . '
' .
'' . __( 'If you want to discard your custom header and go back to the default included in your theme, click on the buttons to remove the custom image and restore the original header image.' ) . '
' .
'' . __( 'Some themes come with additional header images bundled. If you see multiple images displayed, select the one you’d like and click the Save Changes button.' ) . '
'
) );
get_current_screen()->set_help_sidebar(
'' . __( 'For more information:' ) . '
' .
'' . __( 'Documentation on Custom Header ' ) . '
' .
'' . __( 'Support Forums ' ) . '
'
);
}
/**
* Get the current step.
*
* @since 2.6.0
*
* @return int Current step
*/
function step() {
if ( ! isset( $_GET['step'] ) )
return 1;
$step = (int) $_GET['step'];
if ( $step < 1 || 3 < $step )
$step = 1;
return $step;
}
/**
* Set up the enqueue for the JavaScript files.
*
* @since 2.1.0
*/
function js_includes() {
$step = $this->step();
if ( 1 == $step )
wp_enqueue_script('jquery-masonry');
if ( ( 1 == $step || 3 == $step ) && $this->header_text() )
wp_enqueue_script('farbtastic');
elseif ( 2 == $step )
wp_enqueue_script('imgareaselect');
}
/**
* Set up the enqueue for the CSS files
*
* @since 2.7
*/
function css_includes() {
$step = $this->step();
if ( ( 1 == $step || 3 == $step ) && $this->header_text() )
wp_enqueue_style('farbtastic');
elseif ( 2 == $step )
wp_enqueue_style('imgareaselect');
}
/**
* Check if header text is allowed
*
* @since 3.0.0
*/
function header_text() {
if ( defined( 'NO_HEADER_TEXT' ) && NO_HEADER_TEXT )
return false;
return true;
}
/**
* Execute custom header modification.
*
* @since 2.6.0
*/
function take_action() {
if ( ! current_user_can('edit_theme_options') )
return;
if ( empty( $_POST ) )
return;
$this->updated = true;
if ( isset( $_POST['resetheader'] ) ) {
check_admin_referer( 'custom-header-options', '_wpnonce-custom-header-options' );
$this->process_default_headers();
$default = defined( 'HEADER_IMAGE' ) ? HEADER_IMAGE : '';
$default = sprintf( $default, get_template_directory_uri(), get_stylesheet_directory_uri() );
foreach ( $this->default_headers as $header => $details ) {
if ( $details['url'] == $default ) {
$default_data = $details;
break;
}
}
set_theme_mod( 'header_image', $default );
if ( empty( $default_data['width'] ) )
$default_data['width'] = HEADER_IMAGE_WIDTH;
if ( empty( $default_data['height'] ) )
$default_data['height'] = HEADER_IMAGE_HEIGHT;
set_theme_mod( 'header_image_data', (object) $default_data );
return;
}
if ( isset( $_POST['resettext'] ) ) {
check_admin_referer( 'custom-header-options', '_wpnonce-custom-header-options' );
remove_theme_mod('header_textcolor');
return;
}
if ( isset( $_POST['removeheader'] ) ) {
check_admin_referer( 'custom-header-options', '_wpnonce-custom-header-options' );
set_theme_mod( 'header_image', 'remove-header' );
return;
}
if ( isset( $_POST['text-color'] ) ) {
check_admin_referer( 'custom-header-options', '_wpnonce-custom-header-options' );
$_POST['text-color'] = str_replace( '#', '', $_POST['text-color'] );
if ( 'blank' == $_POST['text-color'] ) {
set_theme_mod( 'header_textcolor', 'blank' );
} else {
$color = preg_replace('/[^0-9a-fA-F]/', '', $_POST['text-color']);
if ( strlen($color) == 6 || strlen($color) == 3 )
set_theme_mod('header_textcolor', $color);
}
}
if ( isset( $_POST['default-header'] ) ) {
check_admin_referer( 'custom-header-options', '_wpnonce-custom-header-options' );
if ( 'random-default-image' == $_POST['default-header'] ) {
set_theme_mod( 'header_image', 'random-default-image' );
} elseif ( 'random-uploaded-image' == $_POST['default-header'] ) {
set_theme_mod( 'header_image', 'random-uploaded-image' );
} else {
$this->process_default_headers();
$uploaded = get_uploaded_header_images();
if ( isset( $uploaded[$_POST['default-header']] ) ) {
set_theme_mod( 'header_image', esc_url( $uploaded[$_POST['default-header']]['url'] ) );
set_theme_mod( 'header_image_data', (object) $uploaded[$_POST['default-header']] );
} elseif ( isset( $this->default_headers[$_POST['default-header']] ) ) {
set_theme_mod( 'header_image', esc_url( $this->default_headers[$_POST['default-header']]['url'] ) );
if ( empty( $this->default_headers[$_POST['default-header']]['width'] ) )
$this->default_headers[$_POST['default-header']]['width'] = HEADER_IMAGE_WIDTH;
if ( empty( $this->default_headers[$_POST['default-header']]['height'] ) )
$this->default_headers[$_POST['default-header']]['height'] = HEADER_IMAGE_HEIGHT;
set_theme_mod( 'header_image_data', (object) $this->default_headers[$_POST['default-header']] );
}
}
}
}
/**
* Process the default headers
*
* @since 3.0.0
*/
function process_default_headers() {
global $_wp_default_headers;
if ( !empty($this->headers) )
return;
if ( !isset($_wp_default_headers) )
return;
$this->default_headers = $_wp_default_headers;
$template_directory_uri = get_template_directory_uri();
$stylesheet_directory_uri = get_stylesheet_directory_uri();
foreach ( array_keys($this->default_headers) as $header ) {
$this->default_headers[$header]['url'] = sprintf( $this->default_headers[$header]['url'], $template_directory_uri, $stylesheet_directory_uri );
$this->default_headers[$header]['thumbnail_url'] = sprintf( $this->default_headers[$header]['thumbnail_url'], $template_directory_uri, $stylesheet_directory_uri );
}
}
/**
* Display UI for selecting one of several default headers.
*
* Show the random image option if this theme has multiple header images.
* Random image option is on by default if no header has been set.
*
* @since 3.0.0
*/
function show_header_selector( $type = 'default' ) {
if ( 'default' == $type ) {
$headers = $this->default_headers;
} else {
$headers = get_uploaded_header_images();
$type = 'uploaded';
}
if ( 1 < count( $headers ) ) {
echo '';
echo 'Random: Show a different image on each page.' );
echo '
';
}
echo '';
}
/**
* Execute Javascript depending on step.
*
* @since 2.1.0
*/
function js() {
$step = $this->step();
if ( ( 1 == $step || 3 == $step ) && $this->header_text() )
$this->js_1();
elseif ( 2 == $step )
$this->js_2();
}
/**
* Display Javascript based on Step 1 and 3.
*
* @since 2.6.0
*/
function js_1() { ?>
process_default_headers();
?>
updated ) ) { ?>
Visit your site to see how it looks.' ), home_url( '/' ) ); ?>
false);
$file = wp_handle_upload($_FILES['import'], $overrides);
if ( isset($file['error']) )
wp_die( $file['error'], __( 'Image Upload Error' ) );
$url = $file['url'];
$type = $file['type'];
$file = $file['file'];
$filename = basename($file);
// Construct the object array
$object = array(
'post_title' => $filename,
'post_content' => $url,
'post_mime_type' => $type,
'guid' => $url,
'context' => 'custom-header'
);
// Save the data
$id = wp_insert_attachment($object, $file);
list($width, $height, $type, $attr) = getimagesize( $file );
$header_support = get_theme_support( 'custom-header' );
$max_width = 0;
// For flex, limit size of image displayed to 1500px unless theme says otherwise
if ( current_theme_supports( 'custom-header', 'flex-width' ) )
$max_width = 1500;
if ( !empty( $header_support[ 0 ][ 'max-width' ] ) )
$max_width = max( $max_width, absint( $header_support[ 0 ][ 'max-width' ] ) );
if ( defined( 'HEADER_IMAGE_WIDTH' ) )
$max_width = max( $max_width, HEADER_IMAGE_WIDTH );
// If flexible height isn't supported and the image is the exact right size
if ( ! current_theme_supports( 'custom-header', 'flex-height' ) && ! current_theme_supports( 'custom-header', 'flex-width' ) && $width == HEADER_IMAGE_WIDTH && $height == HEADER_IMAGE_HEIGHT ) {
// Add the meta-data
wp_update_attachment_metadata( $id, wp_generate_attachment_metadata( $id, $file ) );
update_post_meta( $id, '_wp_attachment_is_custom_header', get_option('stylesheet' ) );
set_theme_mod('header_image', esc_url($url));
do_action('wp_create_file_in_uploads', $file, $id); // For replication
return $this->finished();
} elseif ( $width > $max_width ) {
$oitar = $width / $max_width;
$image = wp_crop_image($file, 0, 0, $width, $height, $max_width, $height / $oitar, false, str_replace(basename($file), 'midsize-'.basename($file), $file));
if ( is_wp_error( $image ) )
wp_die( __( 'Image could not be processed. Please go back and try again.' ), __( 'Image Processing Error' ) );
$image = apply_filters('wp_create_file_in_uploads', $image, $id); // For replication
$url = str_replace(basename($url), basename($image), $url);
$width = $width / $oitar;
$height = $height / $oitar;
} else {
$oitar = 1;
}
?>
1 ) {
$_POST['x1'] = $_POST['x1'] * $_POST['oitar'];
$_POST['y1'] = $_POST['y1'] * $_POST['oitar'];
$_POST['width'] = $_POST['width'] * $_POST['oitar'];
$_POST['height'] = $_POST['height'] * $_POST['oitar'];
}
$attachment_id = absint( $_POST['attachment_id'] );
$original = get_attached_file($attachment_id);
$header_support = get_theme_support( 'custom-header' );
$max_width = 0;
// For flex, limit size of image displayed to 1500px unless theme says otherwise
if ( current_theme_supports( 'custom-header', 'flex-width' ) )
$max_width = 1500;
if ( !empty( $header_support[ 0 ][ 'max-width' ] ) )
$max_width = max( $max_width, absint( $header_support[ 0 ][ 'max-width' ] ) );
if ( defined( 'HEADER_IMAGE_WIDTH' ) )
$max_width = max( $max_width, HEADER_IMAGE_WIDTH );
if ( ( current_theme_supports( 'custom-header', 'flex-height' ) && ! current_theme_supports( 'custom-header', 'flex-width' ) ) || $_POST['width'] > $max_width )
$dst_height = absint( $_POST['height'] * ( $max_width / $_POST['width'] ) );
elseif ( current_theme_supports( 'custom-header', 'flex-height' ) && current_theme_supports( 'custom-header', 'flex-width' ) )
$dst_height = absint( $_POST['height'] );
else
$dst_height = HEADER_IMAGE_HEIGHT;
if ( ( current_theme_supports( 'custom-header', 'flex-width' ) && ! current_theme_supports( 'custom-header', 'flex-height' ) ) || $_POST['width'] > $max_width )
$dst_width = absint( $_POST['width'] * ( $max_width / $_POST['width'] ) );
elseif ( current_theme_supports( 'custom-header', 'flex-width' ) && current_theme_supports( 'custom-header', 'flex-height' ) )
$dst_width = absint( $_POST['width'] );
else
$dst_width = HEADER_IMAGE_WIDTH;
$cropped = wp_crop_image( $attachment_id, (int) $_POST['x1'], (int) $_POST['y1'], (int) $_POST['width'], (int) $_POST['height'], $dst_width, $dst_height );
if ( is_wp_error( $cropped ) )
wp_die( __( 'Image could not be processed. Please go back and try again.' ), __( 'Image Processing Error' ) );
$cropped = apply_filters('wp_create_file_in_uploads', $cropped, $attachment_id); // For replication
$parent = get_post($attachment_id);
$parent_url = $parent->guid;
$url = str_replace(basename($parent_url), basename($cropped), $parent_url);
// Construct the object array
$object = array(
'ID' => $attachment_id,
'post_title' => basename($cropped),
'post_content' => $url,
'post_mime_type' => 'image/jpeg',
'guid' => $url,
'context' => 'custom-header'
);
// Update the attachment
wp_insert_attachment($object, $cropped);
wp_update_attachment_metadata( $attachment_id, wp_generate_attachment_metadata( $attachment_id, $cropped ) );
update_post_meta( $attachment_id, '_wp_attachment_is_custom_header', get_option('stylesheet' ) );
set_theme_mod('header_image', $url);
$header_data = new stdClass();
$header_data->attachment_id = $attachment_id;
$header_data->url = $url;
$header_data->thumbnail_url = $url;
$header_data->width = $dst_width;
$header_data->height = $dst_height;
set_theme_mod( 'header_image_data', $header_data );
// cleanup
$medium = str_replace(basename($original), 'midsize-'.basename($original), $original);
@unlink( apply_filters( 'wp_delete_file', $medium ) );
@unlink( apply_filters( 'wp_delete_file', $original ) );
return $this->finished();
}
/**
* Display last step of custom header image page.
*
* @since 2.1.0
*/
function finished() {
$this->updated = true;
$this->step_1();
}
/**
* Display the page based on the current step.
*
* @since 2.1.0
*/
function admin_page() {
if ( ! current_user_can('edit_theme_options') )
wp_die(__('You do not have permission to customize headers.'));
$step = $this->step();
if ( 1 == $step )
$this->step_1();
elseif ( 2 == $step )
$this->step_2();
elseif ( 3 == $step )
$this->step_3();
}
}