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<?php
/**
* Adds the layout meta box to the post editing screen for post types that support `theme-layouts`.
*
* @package HybridCore
* @subpackage Admin
* @author Justin Tadlock <justin@justintadlock.com>
* @copyright Copyright (c) 2008 - 2015, Justin Tadlock
* @link http://themehybrid.com/hybrid-core
* @license http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
*/
# Add the layout meta box on the 'add_meta_boxes' hook.
add_action( 'add_meta_boxes', 'hybrid_add_post_layout_meta_box', 10, 2 );
# Saves the post layout on the post editing page.
add_action( 'save_post', 'hybrid_save_post_layout', 10, 2 );
add_action( 'add_attachment', 'hybrid_save_post_layout' );
add_action( 'edit_attachment', 'hybrid_save_post_layout' );
/**
* Adds the layout meta box.
*
* @since 3.0.0
* @access public
* @param string $post_type
* @param object $post
* @return void
*/
function hybrid_add_post_layout_meta_box( $post_type ) {
if ( current_theme_supports( 'theme-layouts', 'post_meta' ) && post_type_supports( $post_type, 'theme-layouts' ) && current_user_can( 'edit_theme_options' ) ) {
// Add meta box.
add_meta_box( 'hybrid-post-layout', esc_html__( 'Layout', 'hybrid-core' ), 'hybrid_post_layout_meta_box', $post_type, 'side', 'default' );
// Load scripts/styles.
add_action( 'admin_enqueue_scripts', 'hybrid_post_layout_enqueue', 5 );
}
}
/**
* Loads the scripts/styles for the layout meta box.
*
* @since 3.0.0
* @access public
* @return void
*/
function hybrid_post_layout_enqueue() {
wp_enqueue_style( 'hybrid-admin' );
}
/**
* Callback function for displaying the layout meta box.
*
* @since 3.0.0
* @access public
* @param object $object
* @param array $box
* @return void
*/
function hybrid_post_layout_meta_box( $post, $box ) {
// Get the current post's layout.
$post_layout = hybrid_get_post_layout( $post->ID );
$post_layout = $post_layout ? $post_layout : 'default';
wp_nonce_field( basename( __FILE__ ), 'hybrid-post-layout-nonce' ); ?>
<?php foreach ( hybrid_get_layouts() as $layout ) : ?>
<?php if ( true === $layout->is_post_layout && $layout->image && ! ( ! empty( $layout->post_types ) && ! in_array( $post->post_type, $layout->post_types ) ) ) : ?>
<label class="has-img">
<input type="radio" value="<?php echo esc_attr( $layout->name ); ?>" name="hybrid-post-layout" <?php checked( $post_layout, $layout->name ); ?> />
<span class="screen-reader-text"><?php echo esc_html( $layout->label ); ?></span>
<img src="<?php echo esc_url( sprintf( $layout->image, get_template_directory_uri(), get_stylesheet_directory_uri() ) ); ?>" alt="<?php echo esc_attr( $layout->label ); ?>" />
</label>
<?php endif; ?>
<?php endforeach; ?>
<script type="text/javascript">
jQuery( document ).ready( function( $ ) {
// Add the `.checked` class to whichever radio is checked.
$( '#hybrid-post-layout input:checked' ).addClass( 'checked' );
// When a radio is clicked.
$( "#hybrid-post-layout input" ).click( function() {
// If the radio has the `.checked` class, remove it and uncheck the radio.
if ( $( this ).hasClass( 'checked' ) ) {
$( "#hybrid-post-layout input" ).removeClass( 'checked' );
$( this ).prop( 'checked', false );
// If the radio is not checked, add the `.checked` class and check it.
} else {
$( "#hybrid-post-layout input" ).removeClass( 'checked' );
$( this ).addClass( 'checked' );
}
} );
} );
</script>
<?php
}
/**
* Saves the post layout when submitted via the layout meta box.
*
* @since 3.0.0
* @access public
* @param int $post_id The ID of the current post being saved.
* @param object $post The post object currently being saved.
* @return void|int
*/
function hybrid_save_post_layout( $post_id, $post = '' ) {
// Fix for attachment save issue in WordPress 3.5. @link http://core.trac.wordpress.org/ticket/21963
if ( ! is_object( $post ) )
$post = get_post();
// Verify the nonce for the post formats meta box.
if ( ! isset( $_POST['hybrid-post-layout-nonce'] ) || ! wp_verify_nonce( $_POST['hybrid-post-layout-nonce'], basename( __FILE__ ) ) )
return $post_id;
// Get the previous post layout.
$meta_value = hybrid_get_post_layout( $post_id );
// Get the submitted post layout.
$new_meta_value = isset( $_POST['hybrid-post-layout'] ) ? sanitize_key( $_POST['hybrid-post-layout'] ) : '';
// If there is no new meta value but an old value exists, delete it.
if ( '' == $new_meta_value && $meta_value )
hybrid_delete_post_layout( $post_id );
// If a new meta value was added and there was no previous value, add it.
elseif ( $meta_value !== $new_meta_value )
hybrid_set_post_layout( $post_id, $new_meta_value );
}