/** ************************************************************************
  * Recommended. This method is called when the parent class can't find a method
  * specifically build for a given column. Generally, it's recommended to include
  * one method for each column you want to render, keeping your package class
  * neat and organized. For example, if the class needs to process a column
  * named 'title', it would first see if a method named $this->column_title()
  * exists - if it does, that method will be used. If it doesn't, this one will
  * be used. Generally, you should try to use custom column methods as much as
  * possible.
  *
  * Since we have defined a column_title() method later on, this method doesn't
  * need to concern itself with any column with a name of 'title'. Instead, it
  * needs to handle everything else.
  *
  * For more detailed insight into how columns are handled, take a look at
  * WP_List_Table::single_row_columns()
  *
  * @param array $item A singular item (one full row's worth of data)
  * @param array $column_name The name/slug of the column to be processed
  * @return string Text or HTML to be placed inside the column <td>
  **************************************************************************/
 function column_default($item, $column_name)
 {
     switch ($column_name) {
         case 'title':
         case 'description':
             return stripslashes($item[$column_name]);
         case 'post_types':
             $post_types = wpcf_admin_get_post_types_by_group($item['id']);
             return empty($post_types) ? __('All post types', 'wpcf') : implode(', ', $post_types);
             break;
         case 'taxonomies':
             $taxonomies = wpcf_admin_get_taxonomies_by_group($item['id']);
             $output = '';
             if (empty($taxonomies)) {
                 $output = __('None', 'wpcf');
             } else {
                 foreach ($taxonomies as $taxonomy => $terms) {
                     $output .= '<em>' . $taxonomy . '</em>: ';
                     $terms_output = array();
                     foreach ($terms as $term_id => $term) {
                         $terms_output[] = $term['name'];
                     }
                     $output .= implode(', ', $terms_output) . '<br />';
                 }
             }
             return $output;
         case 'status':
             return 'active' == $item[$column_name] ? __('Yes', 'wpcf') : __('No', 'wpcf');
         default:
             return print_r($item, true);
             //Show the whole array for troubleshooting purposes
     }
 }

/**
 * Renders 'widefat' table.
 */
function wpcf_admin_fields_list()
{
    $groups = wpcf_admin_fields_get_groups();
    if (empty($groups)) {
        echo '<p>' . __("To use custom fields, please create a group to hold them.", 'wpcf') . '</p>';
        echo '<br /><a class="button-primary" href="' . admin_url('admin.php?page=wpcf-edit') . '">' . __('Add a custom fields group', 'wpcf') . '</a><br /><br />';
    } else {
        echo '<br /><a class="button-secondary" href="' . admin_url('admin.php?page=wpcf-edit') . '">' . __('Add a custom fields group', 'wpcf') . '</a><br /><br />';
        $rows = array();
        $header = array('group_name' => __('Group name', 'wpcf'), 'group_description' => __('Description', 'wpcf'), 'group_active' => __('Active', 'wpcf'), 'group_post_types' => __('Post types', 'wpcf'), 'group_taxonomies' => __('Taxonomies', 'wpcf'));
        foreach ($groups as $group) {
            // Set 'name' column
            $name = '';
            $name .= '<a href="' . admin_url('admin.php?page=wpcf-edit&amp;group_id=' . $group['id']) . '">' . $group['name'] . '</a>';
            $name .= '<br />';
            $name .= '<a href="' . admin_url('admin.php?page=wpcf-edit&amp;group_id=' . $group['id']) . '">' . __('Edit', 'wpcf') . '</a> | ';
            $name .= $group['is_active'] ? wpcf_admin_fields_get_ajax_deactivation_link($group['id']) . ' | ' : wpcf_admin_fields_get_ajax_activation_link($group['id']) . ' | ';
            $name .= '<a href="' . admin_url('admin-ajax.php?action=wpcf_ajax&amp;' . 'wpcf_action=delete_group&amp;group_id=' . $group['id'] . '&amp;wpcf_ajax_update=wpcf_list_ajax_response_' . $group['id']) . '&amp;_wpnonce=' . wp_create_nonce('delete_group') . '&amp;wpcf_warning=' . __('Are you sure?', 'wpcf') . '" class="wpcf-ajax-link" ' . 'id="wpcf-list-delete-' . $group['id'] . '">' . __('Delete Permanently', 'wpcf') . '</a>';
            $name .= '<div id="wpcf_list_ajax_response_' . $group['id'] . '"></div>';
            $rows[$group['id']]['name'] = $name;
            $rows[$group['id']]['raw_name'] = $group['name'];
            $rows[$group['id']]['description'] = $group['description'];
            $rows[$group['id']]['active-' . $group['id']] = $group['is_active'] ? __('Yes', 'wpcf') : __('No', 'wpcf');
            $rows[$group['id']]['status'] = $group['is_active'] ? 'active' : 'inactive';
            // Set 'post_tpes' column
            $post_types = wpcf_admin_get_post_types_by_group($group['id']);
            $rows[$group['id']]['post_types'] = empty($post_types) ? __('All post types', 'wpcf') : implode(', ', $post_types);
            // Set 'taxonomies' column
            $taxonomies = wpcf_admin_get_taxonomies_by_group($group['id']);
            $output = '';
            if (empty($taxonomies)) {
                $output = __('None', 'wpcf');
            } else {
                foreach ($taxonomies as $taxonomy => $terms) {
                    $output .= '<em>' . $taxonomy . '</em>: ';
                    $terms_output = array();
                    foreach ($terms as $term_id => $term) {
                        $terms_output[] = $term['name'];
                    }
                    $output .= implode(', ', $terms_output) . '<br />';
                }
            }
            $rows[$group['id']]['tax'] = $output;
        }
        uasort($rows, 'wpcf_admin_fields_list_sort');
        // Render table
        wpcf_admin_widefat_table('wpcf_groups_list', $header, $rows);
    }
    do_action('wpcf_groups_list_table_after');
}

/**
 * Renders 'widefat' table.
 */
function wpcf_admin_fields_list()
{
    $groups = wpcf_admin_fields_get_groups();
    if (empty($groups)) {
        echo '<p>' . __("Custom Fields (also known as post-meta) are information attached to WordPress posts. This data can then be queried and filtered in your database. With Types you can create Custom Field Groups which are then attached to any post type (including Posts, Pages and Custom Post Types) or taxonomy.", 'wpcf') . '<br /><br />' . __('You can read more about Custom Fields in this tutorial: <a href="http://wp-types.com/user-guides/using-custom-fields/" target="_blank">http://wp-types.com/user-guides/using-custom-fields/ &raquo;</a>.', 'wpcf') . '</p>';
    }
    echo '<br /><a class="button-secondary" href="' . admin_url('admin.php?page=wpcf-edit') . '">' . __('Add a custom fields group', 'wpcf') . '</a><br /><br />';
    if (!empty($groups)) {
        $rows = array();
        $header = array('group_name' => __('Group name', 'wpcf'), 'group_description' => __('Description', 'wpcf'), 'group_active' => __('Active', 'wpcf'), 'group_post_types' => __('Post types', 'wpcf'), 'group_taxonomies' => __('Taxonomies', 'wpcf'));
        foreach ($groups as $group) {
            // Set 'name' column
            $name = '';
            $name .= '<a href="' . admin_url('admin.php?page=wpcf-edit&amp;group_id=' . $group['id']) . '">' . $group['name'] . '</a>';
            $name .= '<br />';
            $name .= '<a href="' . admin_url('admin.php?page=wpcf-edit&amp;group_id=' . $group['id']) . '">' . __('Edit', 'wpcf') . '</a> | ';
            $name .= $group['is_active'] ? wpcf_admin_fields_get_ajax_deactivation_link($group['id']) . ' | ' : wpcf_admin_fields_get_ajax_activation_link($group['id']) . ' | ';
            $name .= '<a href="' . admin_url('admin-ajax.php?action=wpcf_ajax&amp;' . 'wpcf_action=delete_group&amp;group_id=' . $group['id'] . '&amp;wpcf_ajax_update=wpcf_list_ajax_response_' . $group['id']) . '&amp;_wpnonce=' . wp_create_nonce('delete_group') . '&amp;wpcf_warning=' . __('Are you sure?', 'wpcf') . '" class="wpcf-ajax-link" ' . 'id="wpcf-list-delete-' . $group['id'] . '">' . __('Delete Permanently', 'wpcf') . '</a>';
            $name .= '<div id="wpcf_list_ajax_response_' . $group['id'] . '"></div>';
            $rows[$group['id']]['name'] = $name;
            $rows[$group['id']]['description'] = $group['description'];
            $rows[$group['id']]['active-' . $group['id']] = $group['is_active'] ? __('Yes', 'wpcf') : __('No', 'wpcf');
            // Set 'post_tpes' column
            $post_types = wpcf_admin_get_post_types_by_group($group['id']);
            $rows[$group['id']]['post_types'] = empty($post_types) ? __('None', 'wpcf') : implode(', ', $post_types);
            // Set 'taxonomies' column
            $taxonomies = wpcf_admin_get_taxonomies_by_group($group['id']);
            $output = '';
            if (empty($taxonomies)) {
                $output = __('None', 'wpcf');
            } else {
                foreach ($taxonomies as $taxonomy => $terms) {
                    $output .= '<em>' . $taxonomy . '</em>: ';
                    $terms_output = array();
                    foreach ($terms as $term_id => $term) {
                        $terms_output[] = $term['name'];
                    }
                    $output .= implode(', ', $terms_output) . '<br />';
                }
            }
            $rows[$group['id']]['tax'] = $output;
        }
        // Render table
        wpcf_admin_widefat_table('wpcf_groups_list', $header, $rows);
    }
    do_action('wpcf_groups_list_table_after');
}

 /** ************************************************************************
  * Recommended. This method is called when the parent class can't find a method
  * specifically build for a given column. Generally, it's recommended to include
  * one method for each column you want to render, keeping your package class
  * neat and organized. For example, if the class needs to process a column
  * named 'title', it would first see if a method named $this->column_title()
  * exists - if it does, that method will be used. If it doesn't, this one will
  * be used. Generally, you should try to use custom column methods as much as
  * possible.
  *
  * Since we have defined a column_title() method later on, this method doesn't
  * need to concern itself with any column with a name of 'title'. Instead, it
  * needs to handle everything else.
  *
  * For more detailed insight into how columns are handled, take a look at
  * WP_List_Table::single_row_columns()
  *
  * @param array $item A singular item (one full row's worth of data)
  * @param array $column_name The name/slug of the column to be processed
  * @return string Text or HTML to be placed inside the column <td>
  **************************************************************************/
 function column_default($item, $column_name)
 {
     switch ($column_name) {
         case 'title':
         case 'description':
             return stripslashes($item[$column_name]);
         case 'post_types':
             global $wp_post_types;
             $post_types = wpcf_admin_get_post_types_by_group($item['id']);
             $supports = array();
             if (!empty($post_types)) {
                 foreach ($post_types as $key => $post_type_slug) {
                     if (isset($wp_post_types[$post_type_slug]->labels->singular_name)) {
                         $supports[] = $wp_post_types[$post_type_slug]->labels->singular_name;
                     } else {
                         $supports[] = $post_type_slug;
                     }
                 }
             }
             return empty($post_types) ? __('All post types', 'wpcf') : implode(', ', $supports);
             break;
         case 'taxonomies':
             global $wp_taxonomies;
             $taxonomies = wpcf_admin_get_taxonomies_by_group($item['id']);
             $output = '';
             if (empty($taxonomies)) {
                 $output = __('None', 'wpcf');
             } else {
                 foreach ($taxonomies as $taxonomy => $terms) {
                     $output .= isset($wp_taxonomies[$taxonomy]->labels->singular_name) ? '<em>' . $wp_taxonomies[$taxonomy]->labels->singular_name . '</em>: ' : '<em>' . $taxonomy . '</em>: ';
                     $terms_output = array();
                     foreach ($terms as $term_id => $term) {
                         $terms_output[] = $term['name'];
                     }
                     $output .= implode(', ', $terms_output) . '<br />';
                 }
             }
             return $output;
         case 'status':
             return 'active' == $item[$column_name] ? __('Yes', 'wpcf') : __('No', 'wpcf');
         default:
             return print_r($item, true);
             //Show the whole array for troubleshooting purposes
     }
 }

function wpcf_admin_fields_get_active_fields_by_post_type($post_type)
{
    $custom_fields = array();
    $groups = wpcf_admin_fields_get_groups(TYPES_CUSTOM_FIELD_GROUP_CPT_NAME, true, true);
    if (empty($groups)) {
        return $custom_fields;
    }
    foreach ($groups as $group) {
        $types = wpcf_admin_get_post_types_by_group($group['id']);
        if (!empty($types) && !in_array($post_type, $types)) {
            continue;
        }
        if (isset($group['fields'])) {
            $custom_fields += $group['fields'];
        }
    }
    return $custom_fields;
}

/**
 * Generates form data.
 */
function wpcf_admin_fields_form()
{
    wpcf_admin_add_js_settings('wpcf_nonce_toggle_group', '\'' . wp_create_nonce('group_form_collapsed') . '\'');
    wpcf_admin_add_js_settings('wpcf_nonce_toggle_fieldset', '\'' . wp_create_nonce('form_fieldset_toggle') . '\'');
    $default = array();
    // If it's update, get data
    $update = false;
    if (isset($_REQUEST['group_id'])) {
        $update = wpcf_admin_fields_get_group(intval($_REQUEST['group_id']));
        if (empty($update)) {
            $update = false;
            wpcf_admin_message(sprintf(__("Group with ID %d do not exist", 'wpcf'), intval($_REQUEST['group_id'])));
        } else {
            $update['fields'] = wpcf_admin_fields_get_fields_by_group($_REQUEST['group_id']);
            $update['post_types'] = wpcf_admin_get_post_types_by_group($_REQUEST['group_id']);
            $update['taxonomies'] = wpcf_admin_get_taxonomies_by_group($_REQUEST['group_id']);
            $update['templates'] = wpcf_admin_get_templates_by_group($_REQUEST['group_id']);
        }
    }
    $form = array();
    $form['#form']['callback'] = array('wpcf_admin_save_fields_groups_submit');
    // Form sidebars
    $form['open-sidebar'] = array('#type' => 'markup', '#markup' => '<div class="wpcf-form-fields-align-right">');
    $form['submit2'] = array('#type' => 'submit', '#name' => 'save', '#value' => __('Save', 'wpcf'), '#attributes' => array('class' => 'button-primary'));
    $form['fields'] = array('#type' => 'fieldset', '#title' => __('Available fields', 'wpcf'));
    // Get field types
    $fields_registered = wpcf_admin_fields_get_available_types();
    //    foreach (glob(WPCF_EMBEDDED_INC_ABSPATH . '/fields/*.php') as $filename) {
    foreach ($fields_registered as $filename => $data) {
        //        require_once $filename;
        //        if (function_exists('wpcf_fields_' . basename($filename, '.php'))) {
        //            $data = call_user_func('wpcf_fields_' . basename($filename, '.php'));
        //            if (isset($data['wp_version']) && wpcf_compare_wp_version($data['wp_version'],
        //                            '<')) {
        //                continue;
        //            }
        $form['fields'][basename($filename, '.php')] = array('#type' => 'markup', '#markup' => '<a href="' . admin_url('admin-ajax.php' . '?action=wpcf_ajax&amp;wpcf_action=fields_insert' . '&amp;field=' . basename($filename, '.php')) . '&amp;_wpnonce=' . wp_create_nonce('fields_insert') . '" ' . 'class="wpcf-fields-add-ajax-link button-secondary">' . $data['title'] . '</a> ');
        // Process JS
        if (!empty($data['group_form_js'])) {
            foreach ($data['group_form_js'] as $handle => $script) {
                if (isset($script['inline'])) {
                    add_action('admin_footer', $script['inline']);
                    continue;
                }
                $deps = !empty($script['deps']) ? $script['deps'] : array();
                $in_footer = !empty($script['in_footer']) ? $script['in_footer'] : false;
                wp_register_script($handle, $script['src'], $deps, WPCF_VERSION, $in_footer);
                wp_enqueue_script($handle);
            }
        }
        // Process CSS
        if (!empty($data['group_form_css'])) {
            foreach ($data['group_form_css'] as $handle => $script) {
                if (isset($script['src'])) {
                    $deps = !empty($script['deps']) ? $script['deps'] : array();
                    wp_enqueue_style($handle, $script['src'], $deps, WPCF_VERSION);
                } else {
                    if (isset($script['inline'])) {
                        add_action('admin_head', $script['inline']);
                    }
                }
            }
        }
        //        }
    }
    // Get fields created by user
    $fields = wpcf_admin_fields_get_fields(true, true);
    if (!empty($fields)) {
        $form['fields-existing'] = array('#type' => 'fieldset', '#title' => __('User created fields', 'wpcf'), '#id' => 'wpcf-form-groups-user-fields');
        foreach ($fields as $key => $field) {
            if (isset($update['fields']) && array_key_exists($key, $update['fields'])) {
                continue;
            }
            if (!empty($field['data']['removed_from_history'])) {
                continue;
            }
            $form['fields-existing'][$key] = array('#type' => 'markup', '#markup' => '<div id="wpcf-user-created-fields-wrapper-' . $field['id'] . '" style="float:left; margin-right: 10px;"><a href="' . admin_url('admin-ajax.php' . '?action=wpcf_ajax' . '&amp;wpcf_action=fields_insert_existing' . '&amp;field=' . $field['id']) . '&amp;_wpnonce=' . wp_create_nonce('fields_insert_existing') . '" ' . 'class="wpcf-fields-add-ajax-link button-secondary" onclick="jQuery(this).parent().fadeOut();">' . htmlspecialchars(stripslashes($field['name'])) . '</a>' . '<a href="' . admin_url('admin-ajax.php' . '?action=wpcf_ajax' . '&amp;wpcf_action=remove_from_history' . '&amp;field_id=' . $field['id']) . '&amp;_wpnonce=' . wp_create_nonce('remove_from_history') . '&amp;wpcf_warning=' . sprintf(__('Are you sure that you want to remove field %s from history?', 'wpcf'), htmlspecialchars(stripslashes($field['name']))) . '&amp;wpcf_ajax_update=wpcf-user-created-fields-wrapper-' . $field['id'] . '" title="' . sprintf(__('Remove field %s', 'wpcf'), htmlspecialchars(stripslashes($field['name']))) . '" class="wpcf-ajax-link"><img src="' . WPCF_RES_RELPATH . '/images/delete-2.png" style="postion:absolute;margin-top:5px;margin-left:-4px;" /></a></div>');
        }
    }
    $form['close-sidebar'] = array('#type' => 'markup', '#markup' => '</div>');
    // Group data
    $form['open-main'] = array('#type' => 'markup', '#markup' => '<div id="wpcf-form-fields-main">');
    $form['title'] = array('#type' => 'textfield', '#name' => 'wpcf[group][name]', '#id' => 'wpcf-group-name', '#value' => $update ? $update['name'] : __('Enter group title', 'wpcf'), '#inline' => true, '#attributes' => array('style' => 'width:100%;margin-bottom:10px;'), '#validate' => array('required' => array('value' => true)));
    if (!$update) {
        $form['title']['#attributes']['onfocus'] = 'if (jQuery(this).val() == \'' . __('Enter group title', 'wpcf') . '\') { jQuery(this).val(\'\'); }';
        $form['title']['#attributes']['onblur'] = 'if (jQuery(this).val() == \'\') { jQuery(this).val(\'' . __('Enter group title', 'wpcf') . '\') }';
    }
    $form['description'] = array('#type' => 'textarea', '#id' => 'wpcf-group-description', '#name' => 'wpcf[group][description]', '#value' => $update ? $update['description'] : __('Enter a description for this group', 'wpcf'));
    if (!$update) {
        $form['description']['#attributes']['onfocus'] = 'if (jQuery(this).val() == \'' . __('Enter a description for this group', 'wpcf') . '\') { jQuery(this).val(\'\'); }';
        $form['description']['#attributes']['onblur'] = 'if (jQuery(this).val() == \'\') { jQuery(this).val(\'' . __('Enter a description for this group', 'wpcf') . '\') }';
    }
    // Support post types and taxonomies
    $post_types = get_post_types('', 'objects');
    $options = array();
    $post_types_currently_supported = array();
    $form_types = array();
//.........这里部分代码省略.........

/**
 * Generates form data.
 */
function wpcf_admin_fields_form()
{
    wpcf_admin_add_js_settings('wpcf_nonce_toggle_group', '\'' . wp_create_nonce('group_form_collapsed') . '\'');
    wpcf_admin_add_js_settings('wpcf_nonce_toggle_fieldset', '\'' . wp_create_nonce('form_fieldset_toggle') . '\'');
    $default = array();
    global $wpcf_button_style;
    global $wpcf_button_style30;
    global $wpcf;
    // If it's update, get data
    $update = false;
    if (isset($_REQUEST['group_id'])) {
        $update = wpcf_admin_fields_get_group(intval($_REQUEST['group_id']));
        if (empty($update)) {
            $update = false;
            wpcf_admin_message(sprintf(__("Group with ID %d do not exist", 'wpcf'), intval($_REQUEST['group_id'])));
        } else {
            $update['fields'] = wpcf_admin_fields_get_fields_by_group(sanitize_text_field($_REQUEST['group_id']), 'slug', false, true);
            $update['post_types'] = wpcf_admin_get_post_types_by_group(sanitize_text_field($_REQUEST['group_id']));
            $update['taxonomies'] = wpcf_admin_get_taxonomies_by_group(sanitize_text_field($_REQUEST['group_id']));
            $update['templates'] = wpcf_admin_get_templates_by_group(sanitize_text_field($_REQUEST['group_id']));
            $update['admin_styles'] = wpcf_admin_get_groups_admin_styles_by_group(sanitize_text_field($_REQUEST['group_id']));
        }
    }
    $form = array();
    $form['#form']['callback'] = array('wpcf_admin_save_fields_groups_submit');
    // Form sidebars
    $form['open-sidebar'] = array('#type' => 'markup', '#markup' => '<div class="wpcf-form-fields-align-right">');
    // Set help icon
    $form['help-icon'] = array('#type' => 'markup', '#markup' => '<div class="wpcf-admin-fields-help"><img src="' . WPCF_EMBEDDED_RELPATH . '/common/res/images/question.png" style="position:relative;top:2px;" />&nbsp;<a href="http://wp-types.com/documentation/user-guides/using-custom-fields/?utm_source=typesplugin&utm_medium=help&utm_term=fields-help&utm_content=fields-editor&utm_campaign=types" target="_blank">' . __('Custom fields help', 'wpcf') . '</a></div>');
    $form['submit2'] = array('#type' => 'submit', '#name' => 'save', '#value' => __('Save', 'wpcf'), '#attributes' => array('class' => 'button-primary wpcf-disabled-on-submit'));
    $form['fields'] = array('#type' => 'fieldset', '#title' => __('Available fields', 'wpcf'));
    // Get field types
    $fields_registered = wpcf_admin_fields_get_available_types();
    foreach ($fields_registered as $filename => $data) {
        $form['fields'][basename($filename, '.php')] = array('#type' => 'markup', '#markup' => '<a href="' . admin_url('admin-ajax.php' . '?action=wpcf_ajax&amp;wpcf_action=fields_insert' . '&amp;field=' . basename($filename, '.php') . '&amp;page=wpcf-edit') . '&amp;_wpnonce=' . wp_create_nonce('fields_insert') . '" ' . 'class="wpcf-fields-add-ajax-link button-secondary">' . $data['title'] . '</a> ');
        // Process JS
        if (!empty($data['group_form_js'])) {
            foreach ($data['group_form_js'] as $handle => $script) {
                if (isset($script['inline'])) {
                    add_action('admin_footer', $script['inline']);
                    continue;
                }
                $deps = !empty($script['deps']) ? $script['deps'] : array();
                $in_footer = !empty($script['in_footer']) ? $script['in_footer'] : false;
                wp_register_script($handle, $script['src'], $deps, WPCF_VERSION, $in_footer);
                wp_enqueue_script($handle);
            }
        }
        // Process CSS
        if (!empty($data['group_form_css'])) {
            foreach ($data['group_form_css'] as $handle => $script) {
                if (isset($script['src'])) {
                    $deps = !empty($script['deps']) ? $script['deps'] : array();
                    wp_enqueue_style($handle, $script['src'], $deps, WPCF_VERSION);
                } else {
                    if (isset($script['inline'])) {
                        add_action('admin_head', $script['inline']);
                    }
                }
            }
        }
    }
    // Get fields created by user
    $fields = wpcf_admin_fields_get_fields(true, true);
    if (!empty($fields)) {
        $form['fields-existing'] = array('#type' => 'fieldset', '#title' => __('User created fields', 'wpcf'), '#id' => 'wpcf-form-groups-user-fields');
        foreach ($fields as $key => $field) {
            if (isset($update['fields']) && array_key_exists($key, $update['fields'])) {
                continue;
            }
            if (!empty($field['data']['removed_from_history'])) {
                continue;
            }
            $form['fields-existing'][$key] = array('#type' => 'markup', '#markup' => '<div id="wpcf-user-created-fields-wrapper-' . $field['id'] . '" style="float:left; margin-right: 10px;"><a href="' . admin_url('admin-ajax.php' . '?action=wpcf_ajax' . '&amp;wpcf_action=fields_insert_existing' . '&amp;page=wpcf-edit' . '&amp;field=' . $field['id']) . '&amp;_wpnonce=' . wp_create_nonce('fields_insert_existing') . '" ' . 'class="wpcf-fields-add-ajax-link button-secondary" onclick="jQuery(this).parent().fadeOut();" ' . ' data-slug="' . $field['id'] . '">' . htmlspecialchars(stripslashes($field['name'])) . '</a>' . '<a href="' . admin_url('admin-ajax.php' . '?action=wpcf_ajax' . '&amp;wpcf_action=remove_from_history' . '&amp;field_id=' . $field['id']) . '&amp;_wpnonce=' . wp_create_nonce('remove_from_history') . '&amp;wpcf_warning=' . sprintf(__('Are you sure that you want to remove field %s from history?', 'wpcf'), htmlspecialchars(stripslashes($field['name']))) . '&amp;wpcf_ajax_update=wpcf-user-created-fields-wrapper-' . $field['id'] . '" title="' . sprintf(__('Remove field %s', 'wpcf'), htmlspecialchars(stripslashes($field['name']))) . '" class="wpcf-ajax-link"><img src="' . WPCF_RES_RELPATH . '/images/delete-2.png" style="postion:absolute;margin-top:5px;margin-left:-4px;" /></a></div>');
        }
    }
    $form['close-sidebar'] = array('#type' => 'markup', '#markup' => '</div>');
    // Group data
    $form['open-main'] = array('#type' => 'markup', '#markup' => '<div id="wpcf-form-fields-main">');
    $form['title'] = array('#type' => 'textfield', '#name' => 'wpcf[group][name]', '#id' => 'wpcf-group-name', '#value' => $update ? $update['name'] : '', '#inline' => true, '#attributes' => array('style' => 'width:100%;margin-bottom:10px;', 'placeholder' => __('Enter group title', 'wpcf')), '#validate' => array('required' => array('value' => true)));
    $form['description'] = array('#type' => 'textarea', '#id' => 'wpcf-group-description', '#name' => 'wpcf[group][description]', '#value' => $update ? $update['description'] : '', '#attributes' => array('placeholder' => __('Enter a description for this group', 'wpcf')));
    /**
     *
     * FILTER BOX
     * Since Types 1.2 we moved JS to /embedded/resources/js/custom-fields-form-filter.js
     *
     */
    // Support post types and taxonomies
    $post_types = get_post_types('', 'objects');
    $options = array();
    $post_types_currently_supported = array();
    $form_types = array();
    foreach ($post_types as $post_type_slug => $post_type) {
        if (in_array($post_type_slug, $wpcf->excluded_post_types) || !$post_type->show_ui) {
            continue;
        }
        $options[$post_type_slug]['#name'] = 'wpcf[group][supports][' . $post_type_slug . ']';
//.........这里部分代码省略.........

function wpcf_admin_metabox_custom_fields($ct)
{
    $form = array();
    $options = array();
    $option_to_key = array();
    $groups = wpcf_admin_fields_get_groups('wp-types-group', true, true);
    foreach ($groups as $group) {
        $post_types = wpcf_admin_get_post_types_by_group($group['id']);
        if (empty($post_types) || isset($ct['wpcf-post-type']) && in_array($ct['wpcf-post-type'], $post_types)) {
            if (!empty($group['fields'])) {
                foreach ($group['fields'] as $field => $data) {
                    if (isset($data['data']['repetitive']) && $data['data']['repetitive']) {
                        continue;
                    }
                    switch ($data['type']) {
                        case 'embed':
                        case 'checkboxes':
                        case 'audio':
                        case 'file':
                        case 'textarea':
                        case 'video':
                        case 'wysiwyg':
                            continue;
                        default:
                            $option_to_key[$data['meta_key']] = $field;
                            $options[$field] = array('#name' => sprintf('ct[custom_fields][%s]', esc_attr($data['meta_key'])), '#title' => sprintf('%s <small>(%s)</small>', $data['name'], $data['type']), '#value' => 1, '#inline' => true, '#before' => '<li>', '#after' => '</li>', '#default_value' => intval(isset($ct['custom_fields']) && isset($ct['custom_fields'][$data['meta_key']])));
                    }
                }
            }
        }
    }
    unset($groups);
    /**
     * get custom fields order
     */
    $options_to_add = array();
    if (isset($ct['custom_fields']) && is_array($ct['custom_fields']) && !empty($ct['custom_fields'])) {
        foreach ($ct['custom_fields'] as $key) {
            if (isset($option_to_key[$key]) && isset($options[$option_to_key[$key]])) {
                $options_to_add[$option_to_key[$key]] = $options[$option_to_key[$key]];
                unset($options[$option_to_key[$key]]);
            }
        }
    }
    $form['table-custom_fields-open'] = wpcf_admin_metabox_begin(__('Custom Fields', 'wpcf'), 'custom_fields', 'wpcf-types-form-visiblity-custom-fields-table', false);
    $form['table-custom_fields-description'] = array('#type' => 'checkboxes', '#options' => $options_to_add + $options, '#name' => 'wpcf[group][supports]', '#inline' => true, '#before' => wpautop(__('Check which fields should be shown on custom post list as a column.', 'wpcf')) . '<ul>', '#after' => '</ul>' . wpautop(__('Drag and drop ticked custom fields to reorder.', 'wpcf')));
    $form['table-custom_fields-close'] = wpcf_admin_metabox_end();
    return $form;
}

 /**
  * Summary.
  *
  * Description.
  *
  * @since x.x.x
  * @access (for functions: only use if private)
  *
  * @param $filter
  * @param $form
  */
 protected function form_add_filter_dialog($filter, &$form)
 {
     global $wpcf;
     switch ($filter) {
         /**
          * post types
          */
         case 'post-types':
             $form['post-types-description'] = array('#type' => 'markup', '#markup' => '<p class="description js-wpcf-description">' . __('Select specific Post Types that you want to use with this Field Group:', 'wpcf') . '</p>');
             $form['post-types-ul-open'] = array('#type' => 'markup', '#markup' => '<ul>');
             $currently_supported = wpcf_admin_get_post_types_by_group(sanitize_text_field($_REQUEST['id']));
             $post_types = get_post_types(array('show_ui' => true), 'objects');
             ksort($post_types);
             foreach ($post_types as $post_type_slug => $post_type) {
                 if (in_array($post_type_slug, $wpcf->excluded_post_types)) {
                     continue;
                 }
                 $form['option_' . $post_type_slug] = array('#name' => esc_attr($post_type_slug), '#type' => 'checkbox', '#value' => 1, '#default_value' => $this->ajax_filter_default_value($post_type_slug, $currently_supported, 'post-type'), '#inline' => true, '#before' => '<li>', '#after' => '</li>', '#title' => $post_type->label, '#attributes' => array('data-wpcf-value' => esc_attr($post_type_slug), 'data-wpcf-prefix' => 'post-type-'));
             }
             $form['post-types-ul-close'] = array('#type' => 'markup', '#markup' => '</ul><br class="clear" />');
             break;
             /**
              * taxonomies
              */
         /**
          * taxonomies
          */
         case 'taxonomies':
             $form['taxonomies-description'] = array('#type' => 'markup', '#markup' => '<p class="description js-wpcf-description">' . __('Select ' . 'specific Terms from Taxonomies below that you want to use with this Field Group:', 'wpcf') . '</p>');
             include_once WPCF_INC_ABSPATH . '/fields.php';
             $currently_supported = wpcf_admin_get_taxonomies_by_group($_REQUEST['id']);
             $taxonomies = apply_filters('wpcf_group_form_filter_taxonomies', get_taxonomies('', 'objects'));
             $taxonomies_settings = get_option(WPCF_OPTION_NAME_CUSTOM_TAXONOMIES, array());
             $form['taxonomies-div-open'] = array('#type' => 'markup', '#markup' => '<div id="poststuff" class="meta-box-sortables">');
             foreach ($taxonomies as $category_slug => $category) {
                 if ($category_slug == 'nav_menu' || $category_slug == 'link_category' || $category_slug == 'post_format' || isset($taxonomies_settings[$category_slug]['disabled']) && $taxonomies_settings[$category_slug]['disabled'] == 1 || empty($category->labels->name)) {
                     continue;
                 }
                 $terms = apply_filters('wpcf_group_form_filter_terms', get_terms($category_slug, array('hide_empty' => false)));
                 if (empty($terms)) {
                     continue;
                 }
                 $form_tax = array();
                 $form_tax[$category_slug . '-search'] = array('#type' => 'textfield', '#name' => $category_slug . '-search', '#attributes' => array('class' => 'widefat js-wpcf-taxonomy-search', 'placeholder' => esc_attr__('Search', 'wpcf')));
                 foreach ($terms as $term) {
                     $form_tax[$term->term_taxonomy_id] = array('#type' => 'checkbox', '#name' => esc_attr(sprintf('tax-%d', $term->term_taxonomy_id)), '#value' => 1, '#inline' => true, '#before' => '<li>', '#after' => '</li>', '#title' => $term->name, '#default_value' => $this->ajax_filter_default_value($term->term_taxonomy_id, $currently_supported, 'taxonomy', $category_slug), '#attributes' => array('data-wpcf-value' => esc_attr($term->term_taxonomy_id), 'data-wpcf-slug' => esc_attr($term->slug), 'data-wpcf-name' => esc_attr($term->name), 'data-wpcf-taxonomy-slug' => esc_attr($category_slug), 'data-wpcf-prefix' => ''));
                 }
                 $form += $this->ajax_filter_add_box($category_slug, $category->labels->name, $form_tax);
             }
             $form['taxonomies-div-close'] = array('#type' => 'markup', '#markup' => '</div>');
             break;
             /**
              * templates
              */
         /**
          * templates
          */
         case 'templates':
             $form['templates-description'] = array('#type' => 'markup', '#markup' => '<p class="description js-wpcf-description">' . __('Select specific Template that you want to use with this Field Group:', 'wpcf') . '</p>');
             $form['templates-ul-open'] = array('#type' => 'markup', '#markup' => '<ul>');
             include_once WPCF_INC_ABSPATH . '/fields.php';
             $currently_supported = wpcf_admin_get_templates_by_group(sanitize_text_field($_REQUEST['id']));
             $templates = get_page_templates();
             $templates_views = get_posts(array('post_type' => 'view-template', 'numberposts' => -1, 'status' => 'publish'));
             $form['default-template'] = array('#type' => 'checkbox', '#default_value' => $this->ajax_filter_default_value('default', $currently_supported, 'template'), '#name' => 'default', '#value' => 1, '#inline' => true, '#title' => __('Default', 'wpcf'), '#before' => '<li>', '#after' => '</li>', '#attributes' => array('data-wpcf-value' => esc_attr('default'), 'data-wpcf-prefix' => 'templates-'));
             foreach ($templates as $template_name => $template_filename) {
                 $form[$template_filename] = array('#type' => 'checkbox', '#default_value' => $this->ajax_filter_default_value($template_filename, $currently_supported, 'template'), '#value' => 1, '#inline' => true, '#title' => $template_name, '#name' => sanitize_title_with_dashes($template_filename), '#before' => '<li>', '#after' => '</li>', '#attributes' => array('data-wpcf-value' => esc_attr($template_filename), 'data-wpcf-prefix' => 'templates-'));
             }
             foreach ($templates_views as $template_view) {
                 $form[$template_view->post_name] = array('#type' => 'checkbox', '#value' => 1, '#default_value' => $this->ajax_filter_default_value($template_view->ID, $currently_supported, 'template'), '#inline' => true, '#title' => apply_filters('the_title', $template_view->post_title), '#name' => $template_view->ID, '#before' => '<li>', '#after' => '</li>', '#attributes' => array('data-wpcf-value' => esc_attr($template_view->ID), 'data-wpcf-prefix' => 'templates-'));
             }
             $form['templates-ul-close'] = array('#type' => 'markup', '#markup' => '</ul><br class="clear" />');
             break;
             /**
              * data dependant
              */
         /**
          * data dependant
          */
         case 'data-dependant':
             require_once WPCF_INC_ABSPATH . '/classes/class.types.fields.conditional.php';
             $data_dependant = new Types_Fields_Conditional();
             $form += $data_dependant->group_condition_get(true);
             break;
     }
 }

 /**
  * Summary.
  *
  * Description.
  *
  * @since x.x.x
  * @access (for functions: only use if private)
  *
  * @see Function/method/class relied on
  * @link URL
  * @global type $varname Description.
  * @global type $varname Description.
  *
  * @param type $var Description.
  * @param type $var Optional. Description.
  * @return type Description.
  */
 public function metabox_field_groups($ct)
 {
     $groups = wpcf_admin_fields_get_groups();
     if (empty($groups)) {
         _e('There is no groups to display. Please add some first', 'wpcf');
         return;
     }
     /**
      * set post_type
      */
     $post_type = $this->get_type_from_request('wpcf-post-type');
     /**
      * build form
      */
     $form = array();
     foreach ($groups as $group) {
         $post_types = wpcf_admin_get_post_types_by_group($group['id']);
         $options[] = array('#title' => $group['name'], '#name' => 'ct[custom-field-group][' . $group['id'] . ']', '#default_value' => empty($post_types) || in_array($post_type, $post_types) ? 1 : 0, '#inline' => true, '#before' => '<li>', '#after' => '</li>', '#attributes' => array('data-wpcf-nonce' => wp_create_nonce('save_custom_fields_groups', $post_type, $group['id']), 'data-wpcf-post-type' => $post_type, 'data-wpcf-group-id' => $group['id'], 'class' => 'js-wpcf-custom-fields-group'));
     }
     $form['custom-fields-groups'] = array('#type' => 'checkboxes', '#options' => $options, '#name' => 'ct[custom-fields-groups]', '#inline' => true, '#before' => '<ul class="wpcf-list">', '#after' => '</ul>', '_builtin' => true);
     $form = wpcf_form(__FUNCTION__, $form);
     echo $form->renderForm();
 }