ID;
if ( ! $post_id ) $header_img = get_header_image();
if ( ! $header_img && is_singular() && has_post_thumbnail( $post_id ) ) {
$image_id = get_post_thumbnail_id( $post_id );
$image_meta = wp_get_attachment_metadata( $image_id );
$header_image_width = apply_filters( 'graphene_header_image_width', graphene_grid_width( $graphene_settings['gutter_width'] * 2, 12 ) );
if ( isset( $image_meta['width'] ) && $image_meta['width'] >= $header_image_width && ! $graphene_settings['featured_img_header'] ) {
$image = wp_get_attachment_image_src( $image_id, $size );
if ( $return_url ) $header_img = $image[0];
else {
$header_img = $image;
$header_img['attachment_id'] = $image_id;
}
}
}
if ( ! $header_img ) $header_img = get_header_image();
if ( ! $return_url && ! is_array( $header_img ) ) {
if ( isset( $image ) && $image ) {
$header_img = $image;
$dimension = graphene_get_image_size( $header_img );
$header_img = array( $header_img, $dimension[0], $dimension[1] );
} else if ( $header_img ) {
if ( $image_id = graphene_get_attachment_id_from_src( $header_img ) ) {
$image = wp_get_attachment_image_src( $image_id, $size );
if ( $image ) {
$header_img = $image;
$header_img['attachment_id'] = $image_id;
}
}
}
}
return apply_filters( 'graphene_header_image', $header_img, $post_id, $size, $return_url );
}
endif;
/**
* Get the attachment ID from the source URL
*
* @package Graphene
* @since 1.9
*/
function graphene_get_attachment_id_from_src( $image_src ) {
global $wpdb, $graphene_attachment_src_id;
if ( ! isset( $graphene_attachment_src_id ) ) $graphene_attachment_src_id = array();
if ( ! array_key_exists( $image_src, $graphene_attachment_src_id ) ) {
$query = $wpdb->prepare( "SELECT ID FROM {$wpdb->posts} WHERE post_type = 'attachment' AND guid='%s' LIMIT 1", $image_src );
$id = $wpdb->get_var( $query );
$graphene_attachment_src_id[$image_src] = $id;
}
return $graphene_attachment_src_id[$image_src];
}
/**
* Get the alt text for an attachment image
*
* @package Graphene
* @since 1.9
*/
function graphene_get_attachment_image_alt( $image_src_or_id ){
if ( ! is_numeric( $image_src_or_id ) ) $image_id = attachment_url_to_postid( $image_src_or_id );
else $image_id = $image_src_or_id;
if ( ! $image_id ) return;
$alt = get_post_meta( $image_id, '_wp_attachment_image_alt', true );
return $alt;
}
/**
* Get the alt text for custom header image
*/
function graphene_get_header_image_alt( $image_src_or_id ) {
if ( ! is_numeric( $image_src_or_id ) ) $image_id = graphene_get_attachment_id_from_src( $image_src_or_id );
else $image_id = $image_src_or_id;
$alt = '';
if ( $image_id ) {
$alt = trim( strip_tags( get_post_meta( $image_id, '_wp_attachment_image_alt', true ) ) );
// Get the parent's alt text if this is a cropped image
if ( ! $alt ) {
$header_url = wp_get_attachment_url( $image_id );
if ( stripos( $header_url, '/cropped-' ) !== false ) {
$attachment_metadata = wp_get_attachment_metadata( $image_id );
if ( array_key_exists( 'attachment_parent', $attachment_metadata ) ) {
$alt = graphene_get_attachment_image_alt( $attachment_metadata['attachment_parent'] );
} else {
$alt = '';
}
}
}
// Fallback to caption (excerpt)
if ( ! $alt ) $alt = trim( strip_tags( get_post_field( 'post_excerpt', $image_id ) ) );
// Fallback to title
if ( ! $alt ) $alt = trim( strip_tags( get_post_field( 'post_title', $image_id ) ) );
}
return $alt;
}
/**
* Get the HTML tag for image
*
* @package Graphene
* @since 2.1
*/
function graphene_get_image_html( $image_src_or_id, $size = '', $alt = '' ){
global $graphene_settings;
if ( ! is_numeric( $image_src_or_id ) ) {
$image_id = graphene_get_attachment_id_from_src( $image_src_or_id );
if ( ! $image_id ) {
if ( ! $alt ) $alt = get_bloginfo( 'name' );
$height = '';
$width = '';
$image_size = graphene_get_image_size( $image_src_or_id );
if ( $image_size && isset( $image_size[0] ) && isset( $image_size[1] ) ) {
if ( $image_size[0] && is_numeric( $image_size[0] ) ) $width = $image_size[0];
if ( $image_size[1] && is_numeric( $image_size[1] ) ) $height = $image_size[1];
}
$html = '
';
return $html;
}
} else $image_id = $image_src_or_id;
$args = array();
if ( $alt ) {
$args['alt'] = $alt;
$args['title'] = $alt;
}
$image = wp_get_attachment_image( $image_id, $size, false, $args );
return $image;
}
/**
* This functions adds additional classes to the
element. The additional classes
* are added by filtering the WordPress body_class() function.
*/
function graphene_body_class( $classes ){
global $graphene_settings;
if ( $graphene_settings['slider_full_width'] ) $classes[] = 'full-width-slider';
if ( $graphene_settings['slider_position'] ) $classes[] = 'bottom-slider';
if ( $graphene_settings['mobile_left_column_first'] ) $classes[] = 'left-col-first';
$classes[] = 'layout-' . $graphene_settings['container_style'];
$column_mode = graphene_column_mode();
$classes[] = $column_mode;
// for easier CSS
if ( strpos( $column_mode, 'two_col' ) === 0 ){
$classes[] = 'two-columns';
} else if ( strpos( $column_mode, 'three_col' ) === 0 ){
$classes[] = 'three-columns';
}
if ( has_nav_menu( 'secondary-menu' ) ) $classes[] = 'have-secondary-menu';
if ( is_singular() ) $classes[] = 'singular';
if ( $graphene_settings['slider_as_header'] ) $classes[] = 'header-slider';
/* Different wrapper and content background colours */
if ( $graphene_settings['content_wrapper_bg'] != $graphene_settings['content_bg'] ) {
$classes[] = 'unequal-content-bgs';
}
/* Same wrapper and widget background colours */
if ( $graphene_settings['content_wrapper_bg'] == $graphene_settings['widget_item_bg'] ) {
$classes[] = 'equal-widget-bg';
}
/* Password-protected posts */
if ( post_password_required() ) $classes[] = 'password-protected';
// Prints the body class
return $classes;
}
add_filter( 'body_class', 'graphene_body_class' );
/**
* Add Social Media icons in top bar
*/
function graphene_social_profiles( $args = array() ) {
$defaults = array(
'classes' => array( 'social-profiles' )
);
$args = wp_parse_args( $args, $defaults );
extract( $args, EXTR_SKIP );
global $graphene_settings;
/* Loop through the registered custom social media */
$social_profiles = $graphene_settings['social_profiles'];
if ( ! $social_profiles || ( is_array( $social_profiles ) && in_array( false, $social_profiles ) ) ) return;
if ( empty( $social_profiles ) ) return;
?>
$social_profile ) :
if ( ! empty( $social_profile['url'] ) || $social_profile['type'] == 'rss' ) :
$title = graphene_determine_social_medium_title( $social_profile );
$class = 'mysocial social-' . $social_profile['type'];
$id = 'social-id-' . $count;
$extra = $graphene_settings['social_media_new_window'] ? ' target="_blank"' : '';
$extra = apply_filters( 'graphene_social_media_attr', $extra, $title, $class, $id );
$url = ( $social_profile['type'] == 'rss' && empty( $social_profile['url'] ) ) ? get_bloginfo('rss2_url') : $social_profile['url'];
$icon_url = '';
$icon_name = '';
if ( $social_profile['type'] == 'custom' ) {
$icon_url = ( isset( $social_profile['icon_url'] ) ) ? $social_profile['icon_url'] : '';
$icon_name = ( isset( $social_profile['icon_name'] ) ) ? $social_profile['icon_name'] : '';
$class = 'mysocial social-custom';
}
?>
-
>
tag.
*
* @param int|string|object $id_or_email A user ID, email address, or comment object
* @param int $size Size of the avatar image
* @param string $default URL to a default image to use if no avatar is available
* @param string $alt Alternate text to use in image tag. Defaults to blank
* @return string URL for the user's avatar
*
* @package Graphene
* @since 1.6
*/
function graphene_get_avatar_uri( $id_or_email, $size = '96', $default = '', $alt = false ) {
// Silently fails if < PHP 5
if ( ! function_exists( 'simplexml_load_string' ) ) return;
$avatar = get_avatar( $id_or_email, $size, $default, $alt );
if ( ! $avatar ) return false;
$avatar_xml = simplexml_load_string( $avatar );
$attr = $avatar_xml->attributes();
$src = $attr['src'];
return apply_filters( 'graphene_get_avatar_url', $src, $id_or_email, $size, $default, $alt );
}
endif;
function graphene_feed_link($output, $feed) {
global $graphene_settings;
if ( ( $feed == 'rss2' || $feed == 'rss' )
&& $graphene_settings['use_custom_rss_feed'] && ! empty( $graphene_settings['custom_rss_feed_url'] ) ) {
$output = $graphene_settings['custom_rss_feed_url'];
}
return $output;
}
add_filter( 'feed_link', 'graphene_feed_link', 1, 2 );
/**
* Displays a notice to logged in users if there is no widgets placed in the displayed sidebars
*/
function graphene_sidebar_notice( $sidebar_name = '' ){
$html = '';
$html .= sprintf( __( 'You haven\'t placed any widget into this widget area. Go to %1$s and place some widgets in the widget area called %2$s.', 'graphene' ), '' . __( 'WP Admin > Appearance > Widgets', 'graphene' ) . '', '' . $sidebar_name . '' ) . '
';
$html .= '' . __( "This notice will not be displayed to your site's visitors.", 'graphene' ) . '
';
echo '' . apply_filters( 'graphene_sidebar_notice', $html, $sidebar_name ) . '
';
}
/**
* Apply the correct column mode for static posts page as per its page template
*
* @package Graphene
* @since 1.9
*/
function graphene_posts_page_column(){
if ( ! is_home() ) return;
$home_page = get_option( 'page_for_posts' );
if ( ! $home_page ) return;
$template = get_post_meta( $home_page, '_wp_page_template', true );
if ( ! $template || $template == 'default' ) return;
global $graphene_settings;
switch ( $template ) {
case 'template-onecolumn.php': $graphene_settings['column_mode'] = 'one_column'; break;
case 'template-twocolumnsleft.php': $graphene_settings['column_mode'] = 'two_col_left'; break;
case 'template-twocolumnsright.php': $graphene_settings['column_mode'] = 'two_col_right'; break;
case 'template-threecolumnsleft.php': $graphene_settings['column_mode'] = 'three_col_left'; break;
case 'template-threecolumnscenter.php': $graphene_settings['column_mode'] = 'three_col_center'; break;
case 'template-threecolumnsright.php': $graphene_settings['column_mode'] = 'three_col_right'; break;
}
}
add_action( 'template_redirect', 'graphene_posts_page_column' );
/**
* Add the necessary wrapper for full-width boxed layout
*/
function graphene_container_wrapper( $part = 'start' ) {
global $graphene_settings;
if ( $graphene_settings['container_style'] != 'full-width-boxed' ) return;
if ( $part == 'start' ) echo '';
if ( $part == 'end' ) echo '
';
}
/**
* Get image size, with error handling
*/
function graphene_get_image_size( $file ){
$image_size = array( '', '' );
$file = str_replace( trailingslashit( site_url() ), trailingslashit( ABSPATH ), $file );
if ( filter_var( $file, FILTER_VALIDATE_URL ) === false ) {
try { $image_size = getimagesize( $file ); } catch ( Exception $e ) {}
} elseif ( ini_get( 'allow_url_fopen' ) ) {
try { $image_size = getimagesize( $file ); } catch ( Exception $e ) {}
}
return $image_size;
}