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<?php
// Prevent loading this file directly.
defined( 'ABSPATH' ) || exit;
if ( ! class_exists( 'MB_Tabs' ) ) {
/**
* Main plugin class.
*
* @package Meta Box
* @subpackage Meta Box Tabs
* @author Tran Ngoc Tuan Anh <rilwis@gmail.com>
*/
class MB_Tabs {
/**
* Indicate that the instance of the class is working on a meta box that has tabs or not.
* It will be set 'true' BEFORE meta box is display and 'false' AFTER.
*
* @var bool
*/
protected $active = false;
/**
* Store all output of fields.
* This is used to put fields in correct <div> for tabs.
* The fields' output will be get via filter 'rwmb_outer_html'.
*
* @var array
*/
protected $fields_output = array();
/**
* Initialize. Add hooks to meta box.
*/
public function init() {
add_action( 'rwmb_enqueue_scripts', array( $this, 'enqueue' ) );
add_action( 'rwmb_before', array( $this, 'opening_div' ), 1 ); // 1 = display first, before tab nav.
add_action( 'rwmb_after', array( $this, 'closing_div' ), 100 ); // 100 = display last, after tab panels.
add_action( 'rwmb_before', array( $this, 'show_nav' ) );
add_action( 'rwmb_after', array( $this, 'show_panels' ) );
add_filter( 'rwmb_outer_html', array( $this, 'capture_fields' ), 10, 2 );
}
/**
* Enqueue scripts and styles for tabs.
*/
public function enqueue() {
list( , $url ) = RWMB_Loader::get_path( dirname( __FILE__ ) );
wp_enqueue_style( 'rwmb-tabs', $url . 'tabs.css', '', '1.0.3' );
wp_enqueue_script( 'rwmb-tabs', $url . 'tabs.js', array( 'jquery' ), '1.0.0', true );
}
/**
* Display opening div for tabs for meta box.
*
* @param RW_Meta_Box $obj Meta Box object.
*/
public function opening_div( RW_Meta_Box $obj ) {
if ( empty( $obj->meta_box['tabs'] ) ) {
return;
}
$class = 'rwmb-tabs';
if ( isset( $obj->meta_box['tab_style'] ) && 'default' !== $obj->meta_box['tab_style'] ) {
$class .= ' rwmb-tabs-' . $obj->meta_box['tab_style'];
}
if ( isset( $obj->meta_box['tab_wrapper'] ) && false === $obj->meta_box['tab_wrapper'] ) {
$class .= ' rwmb-tabs-no-wrapper';
}
echo '<div class="' . esc_attr( $class ) . '">';
// Set 'true' to let us know that we're working on a meta box that has tabs.
$this->active = true;
}
/**
* Display closing div for tabs for meta box.
*/
public function closing_div() {
if ( ! $this->active ) {
return;
}
echo '</div>';
// Reset to initial state to be ready for other meta boxes.
$this->active = false;
$this->fields_output = array();
}
/**
* Display tab navigation.
*
* @param RW_Meta_Box $obj Meta Box object.
*/
public function show_nav( RW_Meta_Box $obj ) {
if ( ! $this->active ) {
return;
}
$tabs = $obj->meta_box['tabs'];
echo '<ul class="rwmb-tab-nav">';
$i = 0;
foreach ( $tabs as $key => $tab_data ) {
if ( is_string( $tab_data ) ) {
$tab_data = array(
'label' => $tab_data,
);
}
$tab_data = wp_parse_args( $tab_data, array(
'icon' => '',
'label' => '',
) );
if ( filter_var( $tab_data['icon'], FILTER_VALIDATE_URL ) ) { // If icon is an URL.
$icon = '<img src="' . esc_url( $tab_data['icon'] ) . '">';
} else { // If icon is icon font.
// If icon is dashicons, auto add class 'dashicons' for users.
if ( false !== strpos( $tab_data['icon'], 'dashicons' ) ) {
$tab_data['icon'] .= ' dashicons';
}
// Remove duplicate classes.
$tab_data['icon'] = array_filter( array_map( 'trim', explode( ' ', $tab_data['icon'] ) ) );
$tab_data['icon'] = implode( ' ', array_unique( $tab_data['icon'] ) );
$icon = $tab_data['icon'] ? '<i class="' . esc_attr( $tab_data['icon'] ) . '"></i>' : '';
}
$class = "rwmb-tab-$key";
if ( ! $i ) {
$class .= ' rwmb-tab-active';
}
printf( // WPCS: XSS OK.
'<li class="%s" data-panel="%s"><a href="#">%s%s</a></li>',
esc_attr( $class ),
esc_attr( $key ),
$icon,
$tab_data['label']
);
$i ++;
} // End foreach().
echo '</ul>';
}
/**
* Display tab panels.
* Note that: this public function is hooked to 'rwmb_after', when all fields are outputted.
* (and captured by 'capture_fields' public function).
*
* @param RW_Meta_Box $obj Meta Box object.
*/
public function show_panels( RW_Meta_Box $obj ) {
if ( ! $this->active ) {
return;
}
// Store all tabs.
$tabs = $obj->meta_box['tabs'];
echo '<div class="rwmb-tab-panels">';
foreach ( $this->fields_output as $tab => $fields ) {
// Remove rendered tab.
if ( isset( $tabs[ $tab ] ) ) {
unset( $tabs[ $tab ] );
}
echo '<div class="rwmb-tab-panel rwmb-tab-panel-' . esc_attr( $tab ) . '">';
echo implode( '', $fields ); // WPCS: XSS OK.
echo '</div>';
}
// Print unrendered tabs.
foreach ( $tabs as $tab_id => $tab_data ) {
echo '<div class="rwmb-tab-panel rwmb-tab-panel-' . esc_attr( $tab_id ) . '">';
echo '</div>';
}
echo '</div>';
}
/**
* Save field output into class variable to output later.
*
* @param string $output Field output.
* @param array $field Field configuration.
*
* @return string
*/
public function capture_fields( $output, $field ) {
// If meta box doesn't have tabs, do nothing.
if ( ! $this->active || ! isset( $field['tab'] ) ) {
return $output;
}
$tab = $field['tab'];
if ( ! isset( $this->fields_output[ $tab ] ) ) {
$this->fields_output[ $tab ] = array();
}
$this->fields_output[ $tab ][] = $output;
// Return empty string to let Meta Box plugin echoes nothing.
return '';
}
}
$mb_tabs = new MB_Tabs;
$mb_tabs->init();
} // End if().
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