<?php if ( ! defined( 'OT_VERSION' ) ) exit( 'No direct script access allowed' );
/**
 * OptionTree Meta Box API
 *
 * This class loads all the methods and helpers specific to build a meta box.
 *
 * @package   OptionTree
 * @author    Derek Herman <derek@valendesigns.com>
 * @copyright Copyright (c) 2012, Derek Herman
 */
if ( ! class_exists( 'OT_Meta_Box' ) ) {

  class OT_Meta_Box {
  
    /* variable to store the meta box array */
    private $meta_box;
  
    /**
     * PHP5 constructor method.
     *
     * This method adds other methods of the class to specific hooks within WordPress.
     *
     * @uses      add_action()
     *
     * @return    void
     *
     * @access    public
     * @since     1.0
     */
    function __construct( $meta_box ) {
      if ( ! is_admin() )
        return;
        
      $this->meta_box = $meta_box;
      
      add_action( 'add_meta_boxes', array( &$this, 'add_meta_boxes' ) );
      
      add_action( 'save_post', array( &$this, 'save_meta_box' ), 1, 2 );
      
    }
    
    /**
     * Adds meta box to any post type
     *
     * @uses      add_meta_box()
     *
     * @return    void
     *
     * @access    public
     * @since     1.0
     */
    function add_meta_boxes() {
      foreach ( (array) $this->meta_box['pages'] as $page ) {
        add_meta_box( $this->meta_box['id'], $this->meta_box['title'], array( &$this, 'build_meta_box' ), $page, $this->meta_box['context'], $this->meta_box['priority'], $this->meta_box['fields'] );
      }
    }
    
    /**
     * Meta box view
     *
     * @return    string
     *
     * @access    public
     * @since     1.0
     */
    function build_meta_box( $post, $metabox ) {
      
      echo '<div class="ot-metabox-wrapper">';
           
        /* Use nonce for verification */
        echo '<input type="hidden" name="' . $this->meta_box['id'] . '_nonce" value="' . wp_create_nonce( $this->meta_box['id'] ) . '" />';
        
        /* meta box description */
        echo isset( $this->meta_box['desc'] ) ? '<div class="description" style="padding-top:10px;">' . htmlspecialchars_decode( $this->meta_box['desc'] ) . '</div>' : '';
      
        /* loop through meta box fields */
        foreach ( $this->meta_box['fields'] as $field ) {
        
          /* get current post meta data */
          $field_value = get_post_meta( $post->ID, $field['id'], true );
          
          /* set default to standard value */
          if ( '' == $field_value && isset( $field['std'] ) ) {  
            $field_value = trim( $field['std'] );
          }
          
          /* build the arguments array */
          $_args = array(
            'type'              => $field['type'],
            'field_id'          => $field['id'],
            'field_name'        => $field['id'],
            'field_value'       => $field_value,
            'field_desc'        => isset( $field['desc'] ) ? $field['desc'] : '',
            'field_std'         => isset( $field['std'] ) ? $field['std'] : '',
            'field_rows'        => isset( $field['rows'] ) && ! empty( $field['rows'] ) ? $field['rows'] : 10,
            'field_post_type'   => isset( $field['post_type'] ) && ! empty( $field['post_type'] ) ? $field['post_type'] : 'post',
            'field_taxonomy'    => isset( $field['taxonomy'] ) && ! empty( $field['taxonomy'] ) ? $field['taxonomy'] : 'category',
            'field_class'       => isset( $field['class'] ) ? $field['class'] : '',
            'field_choices'     => isset( $field['choices'] ) ? $field['choices'] : array(),
            'field_settings'    => isset( $field['settings'] ) && ! empty( $field['settings'] ) ? $field['settings'] : array(),
            'post_id'           => $post->ID,
            'meta'              => true
          );
          
          /* only allow simple textarea due to DOM issues with wp_editor() */
          if ( $_args['type'] == 'textarea' )
            $_args['type'] = 'textarea-simple';
          
          /* option label */
          echo '<div class="format-settings">';
            echo '<div class="format-setting-label">';
              echo '<label for="' . $_args['field_id'] . '" class="label">' . $field['label'] . '</label>';
            echo '</div>';
      
            /* get the option HTML */
            echo ot_display_by_type( $_args );
            
          echo '</div>';
          
        }
      
      echo '</div>';

    }
    
    /**
     * Saves the meta box values
     *
     * @return    void
     *
     * @access    public
     * @since     1.0
     */
    function save_meta_box( $post_id, $post_object ) {
      global $pagenow;
      
      /* don't save during quick edit */
      if ( $pagenow == 'admin-ajax.php' )
        return $post_id;
        
      /* don't save during autosave */
      if ( defined( 'DOING_AUTOSAVE' ) && DOING_AUTOSAVE )
        return $post_id;
      
      /* don't save if viewing a revision */
      if ( $post_object->post_type == 'revision' )
        return $post_id;
  
      /* verify nonce */
      if ( isset( $_POST[ $this->meta_box['id'] . '_nonce'] ) && ! wp_verify_nonce( $_POST[ $this->meta_box['id'] . '_nonce'], $this->meta_box['id'] ) )
        return $post_id;
    
      /* check permissions */
      if ( isset( $_POST['post_type'] ) && 'page' == $_POST['post_type'] ) {
        if ( ! current_user_can( 'edit_page', $post_id ) )
          return $post_id;
      } else {
        if ( ! current_user_can( 'edit_post', $post_id ) )
          return $post_id;
      }
    	
      foreach ( $this->meta_box['fields'] as $field ) {
        
        $old = get_post_meta( $post_id, $field['id'], true );
        $new = '';
        
        /* there is data to validate */
        if ( isset( $_POST[$field['id']] ) ) {
        
          /* slider and list item */
          if ( in_array( $field['type'], array( 'list-item', 'slider' ) ) ) {
              
            /* required title setting */
            $required_setting = array(
              array(
                'id'        => 'title',
                'label'     => __( 'Title', 'option-tree' ),
                'desc'      => '',
                'std'       => '',
                'type'      => 'text',
                'rows'      => '',
                'class'     => 'option-tree-setting-title',
                'post_type' => '',
                'choices'   => array()
              )
            );
            
            /* get the settings array */
            $settings = isset( $_POST[$field['id'] . '_settings_array'] ) ? unserialize( base64_decode( $_POST[$field['id'] . '_settings_array'] ) ) : array();
            
            /* settings are empty for some odd ass reason get the defaults */
            if ( empty( $settings ) ) {
              $settings = 'slider' == $field['type'] ? 
              ot_slider_settings( $field['id'] ) : 
              ot_list_item_settings( $field['id'] );
            }
            
            /* merge the two settings array */
            $settings = array_merge( $required_setting, $settings );
            
            foreach( $_POST[$field['id']] as $k => $setting_array ) {
  
              foreach( $settings as $sub_setting ) {
                
                /* verify sub setting has a type & value */
                if ( isset( $sub_setting['type'] ) && isset( $_POST[$field['id']][$k][$sub_setting['id']] ) ) {
                  
                  $_POST[$field['id']][$k][$sub_setting['id']] = ot_validate_setting( $_POST[$field['id']][$k][$sub_setting['id']], $sub_setting['type'], $sub_setting['id'] );
                  
                }
                
              }
            
            }
            
            /* set up new data with validated data */
            $new = $_POST[$field['id']];

          } else {
            
            /* run through validattion */
            $new = ot_validate_setting( $_POST[$field['id']], $field['type'], $field['id'] );
            
          }
          
          /* insert CSS */
          if ( $field['type'] == 'css' ) {
            
            /* insert CSS into dynamic.css */
            if ( '' !== $new ) {
              
              ot_insert_css_with_markers( $field['id'], $new, true );
            
            /* remove old CSS from dynamic.css */
            } else {
            
              ot_remove_old_css( $field['id'] );
              
            }
          
          }
        
        }
        
        if ( $new && $new !== $old ) {
          update_post_meta( $post_id, $field['id'], $new );
        } else if ( '' == $new && $old ) {
          delete_post_meta( $post_id, $field['id'], $old );
        }
      }
  
    }
  
  }

}

/**
 * This method instantiates the meta box class & builds the UI.
 *
 * @uses     OT_Meta_Box()
 *
 * @param    array    Array of arguments to create a meta box
 * @return   void
 *
 * @access   public
 * @since    2.0
 */
if ( ! function_exists( 'ot_register_meta_box' ) ) {

  function ot_register_meta_box( $args ) {
    if ( ! $args )
      return;
      
    $ot_meta_box =& new OT_Meta_Box( $args );
  }

}

/* End of file ot-meta-box-api.php */
/* Location: ./includes/ot-meta-box-api.php */