AnkietyGO/dk-pdf/includes/dkpdf-metaboxes.php

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<?php
if ( ! defined( 'ABSPATH' ) ) exit;
/**
* Return array with all fields in metabox
*/
function dkpdf_get_custom_fields_settings() {
$fields = array();
$fields['_hide_pdfbutton'] = array(
'name' => __( 'Disable DK PDF Button:' , 'dkpdf' ),
'description' => '',
'type' => 'checkbox',
'default' => '',
'section' => ''
);
return $fields;
}
/**
* Add metabox to post types
*/
function dkpdf_meta_box_setup () {
// get post types selected in settings
$pdfbutton_post_types = sanitize_option( 'dkpdf_pdfbutton_post_types', get_option( 'dkpdf_pdfbutton_post_types' ) );
if( $pdfbutton_post_types ) {
// add metabox to selected post types
foreach ( $pdfbutton_post_types as $post_type ) {
add_meta_box( 'post-data', __( 'DK PDF', 'dkpdf' ), 'dkpdf_meta_box_content', $post_type, 'normal', 'high' );
}
}
}
add_action( 'add_meta_boxes', 'dkpdf_meta_box_setup' );
/**
* Add content to metabox
*/
function dkpdf_meta_box_content () {
global $post_id;
$fields = get_post_custom( $post_id );
$field_data = dkpdf_get_custom_fields_settings();
$html = '';
$html .= '<input type="hidden" name="' . 'dkpdf' . '_nonce" id="' . 'dkpdf' . '_nonce" value="' . wp_create_nonce( plugin_basename( __FILE__ ) ) . '" />';
if ( 0 < count( $field_data ) ) {
$html .= '<table class="form-table">' . "\n";
$html .= '<tbody>' . "\n";
foreach ( $field_data as $k => $v ) {
$data = $v['default'];
if ( isset( $fields[$k] ) && isset( $fields[$k][0] ) ) {
$data = $fields[$k][0];
}
if( $v['type'] == 'checkbox' ) {
$html .= '<tr valign="top"><th scope="row">' . $v['name'] . '</th><td><input name="' . esc_attr( $k ) . '" type="checkbox" id="' . esc_attr( $k ) . '" ' . checked( 'on' , $data , false ) . ' /> <label for="' . esc_attr( $k ) . '"><span class="description">' . $v['description'] . '</span></label>' . "\n";
$html .= '</td></tr>' . "\n";
} else {
$html .= '<tr valign="top"><th scope="row"><label for="' . esc_attr( $k ) . '">' . $v['name'] . '</label></th><td><input name="' . esc_attr( $k ) . '" type="text" id="' . esc_attr( $k ) . '" class="regular-text" value="' . esc_attr( $data ) . '" />' . "\n";
$html .= '<p class="description">' . $v['description'] . '</p>' . "\n";
$html .= '</td></tr>' . "\n";
}
}
$html .= '</tbody>' . "\n";
$html .= '</table>' . "\n";
}
echo $html;
}
/**
* Save metabox data
*/
function dkpdf_meta_box_save ( $post_id ) {
global $post, $messages;
if ( isset( $_POST[ 'dkpdf' . '_nonce'] ) ) {
// Verify nonce
if ( ! wp_verify_nonce( $_POST[ 'dkpdf' . '_nonce'], plugin_basename( __FILE__ ) ) ) {
return $post_id;
}
} else {
return $post_id;
}
// Verify user permissions
if ( ! current_user_can( 'edit_post', $post_id ) ) {
return $post_id;
}
// Handle custom fields
$field_data = dkpdf_get_custom_fields_settings();
$fields = array_keys( $field_data );
foreach ( $fields as $f ) {
${$f} = '';
if( isset( $_POST[$f] ) ) {
${$f} = strip_tags( trim( $_POST[$f] ) );
}
// Escape the URLs.
if ( 'url' == $field_data[$f]['type'] ) {
${$f} = esc_url( ${$f} );
}
if ( ${$f} == '' ) {
delete_post_meta( $post_id , $f , get_post_meta( $post_id , $f , true ) );
} else {
update_post_meta( $post_id , $f , ${$f} );
}
}
}
add_action( 'save_post', 'dkpdf_meta_box_save' );