function bp_is_first_group_creation_step()
{
    global $bp;
    $keys = array_keys($bp->groups->group_creation_steps);
    $first_step = array_shift($keys);
    if ($first_step == bp_get_groups_current_create_step()) {
        return true;
    }
    return false;
}

//.........这里部分代码省略.........
        $bp_classes[] = 'profile-edit';
    }
    if (bp_is_user_friends_activity()) {
        $bp_classes[] = 'friends-activity';
    }
    if (bp_is_user_groups_activity()) {
        $bp_classes[] = 'groups-activity';
    }
    /* Messages **********************************************************/
    if (bp_is_messages_inbox()) {
        $bp_classes[] = 'inbox';
    }
    if (bp_is_messages_sentbox()) {
        $bp_classes[] = 'sentbox';
    }
    if (bp_is_messages_compose_screen()) {
        $bp_classes[] = 'compose';
    }
    if (bp_is_notices()) {
        $bp_classes[] = 'notices';
    }
    if (bp_is_user_friend_requests()) {
        $bp_classes[] = 'friend-requests';
    }
    if (bp_is_create_blog()) {
        $bp_classes[] = 'create-blog';
    }
    /* Groups ************************************************************/
    if (bp_is_group()) {
        $bp_classes[] = 'group-' . groups_get_current_group()->slug;
        // Add current group types.
        if ($group_types = bp_groups_get_group_type(bp_get_current_group_id(), false)) {
            foreach ($group_types as $group_type) {
                $bp_classes[] = sprintf('group-type-%s', esc_attr($group_type));
            }
        }
    }
    if (bp_is_group_leave()) {
        $bp_classes[] = 'leave-group';
    }
    if (bp_is_group_invites()) {
        $bp_classes[] = 'group-invites';
    }
    if (bp_is_group_members()) {
        $bp_classes[] = 'group-members';
    }
    if (bp_is_group_forum_topic()) {
        $bp_classes[] = 'group-forum-topic';
    }
    if (bp_is_group_forum_topic_edit()) {
        $bp_classes[] = 'group-forum-topic-edit';
    }
    if (bp_is_group_forum()) {
        $bp_classes[] = 'group-forum';
    }
    if (bp_is_group_admin_page()) {
        $bp_classes[] = 'group-admin';
        $bp_classes[] = bp_get_group_current_admin_tab();
    }
    if (bp_is_group_create()) {
        $bp_classes[] = 'group-create';
        $bp_classes[] = bp_get_groups_current_create_step();
    }
    if (bp_is_group_home()) {
        $bp_classes[] = 'group-home';
    }
    if (bp_is_single_activity()) {
        $bp_classes[] = 'activity-permalink';
    }
    /* Registration ******************************************************/
    if (bp_is_register_page()) {
        $bp_classes[] = 'registration';
    }
    if (bp_is_activation_page()) {
        $bp_classes[] = 'activation';
    }
    /* Current Component & Action ****************************************/
    if (!bp_is_blog_page()) {
        $bp_classes[] = bp_current_component();
        $bp_classes[] = bp_current_action();
    }
    /* Clean up ***********************************************************/
    // Add BuddyPress class if we are within a BuddyPress page.
    if (!bp_is_blog_page()) {
        $bp_classes[] = 'buddypress';
    }
    // Merge WP classes with BuddyPress classes and remove any duplicates.
    $classes = array_unique(array_merge((array) $bp_classes, (array) $wp_classes));
    /**
     * Filters the BuddyPress classes to be added to body_class()
     *
     * @since 1.1.0
     *
     * @param array $classes        Array of body classes to add.
     * @param array $bp_classes     Array of BuddyPress-based classes.
     * @param array $wp_classes     Array of WordPress-based classes.
     * @param array $custom_classes Array of classes that were passed to get_body_class().
     */
    return apply_filters('bp_get_the_body_class', $classes, $bp_classes, $wp_classes, $custom_classes);
}

/**
 * Is the user looking at the first step in the group creation process
 *
 * @since 1.1.0
 *
 * @param string $step Step to compare.
 * @return bool True if yes, False if no
 */
function bp_is_first_group_creation_step($step = '')
{
    // Use current step, if no step passed.
    if (empty($step)) {
        $step = bp_get_groups_current_create_step();
    }
    // Get the first step.
    $bp = buddypress();
    $steps = array_keys($bp->groups->group_creation_steps);
    $f_step = array_shift($steps);
    // Compare first step to step.
    $retval = $f_step === $step;
    /**
     * Filters whether or not user is looking at first step in group creation process.
     *
     * @since 2.4.0
     *
     * @param bool   $retval Whether or not we are looking at first step.
     * @param array  $steps  Array of steps from the group creation process.
     * @param string $step   Step to compare.
     */
    return (bool) apply_filters('bp_is_first_group_creation_step', $retval, $steps, $step);
}

/**
 * Catch and process group creation form submissions.
 */
function groups_action_create_group()
{
    global $bp;
    // If we're not at domain.org/groups/create/ then return false
    if (!bp_is_groups_component() || !bp_is_current_action('create')) {
        return false;
    }
    if (!is_user_logged_in()) {
        return false;
    }
    if (!bp_user_can_create_groups()) {
        bp_core_add_message(__('Sorry, you are not allowed to create groups.', 'buddypress'), 'error');
        bp_core_redirect(trailingslashit(bp_get_root_domain() . '/' . bp_get_groups_root_slug()));
    }
    // Make sure creation steps are in the right order
    groups_action_sort_creation_steps();
    // If no current step is set, reset everything so we can start a fresh group creation
    $bp->groups->current_create_step = bp_action_variable(1);
    if (!bp_get_groups_current_create_step()) {
        unset($bp->groups->current_create_step);
        unset($bp->groups->completed_create_steps);
        setcookie('bp_new_group_id', false, time() - 1000, COOKIEPATH);
        setcookie('bp_completed_create_steps', false, time() - 1000, COOKIEPATH);
        $reset_steps = true;
        $keys = array_keys($bp->groups->group_creation_steps);
        bp_core_redirect(bp_get_root_domain() . '/' . bp_get_groups_root_slug() . '/create/step/' . array_shift($keys) . '/');
    }
    // If this is a creation step that is not recognized, just redirect them back to the first screen
    if (bp_get_groups_current_create_step() && empty($bp->groups->group_creation_steps[bp_get_groups_current_create_step()])) {
        bp_core_add_message(__('There was an error saving group details. Please try again.', 'buddypress'), 'error');
        bp_core_redirect(bp_get_root_domain() . '/' . bp_get_groups_root_slug() . '/create/');
    }
    // Fetch the currently completed steps variable
    if (isset($_COOKIE['bp_completed_create_steps']) && !isset($reset_steps)) {
        $bp->groups->completed_create_steps = json_decode(base64_decode(stripslashes($_COOKIE['bp_completed_create_steps'])));
    }
    // Set the ID of the new group, if it has already been created in a previous step
    if (isset($_COOKIE['bp_new_group_id'])) {
        $bp->groups->new_group_id = (int) $_COOKIE['bp_new_group_id'];
        $bp->groups->current_group = groups_get_group(array('group_id' => $bp->groups->new_group_id));
        // Only allow the group creator to continue to edit the new group
        if (!bp_is_group_creator($bp->groups->current_group, bp_loggedin_user_id())) {
            bp_core_add_message(__('Only the group creator may continue editing this group.', 'buddypress'), 'error');
            bp_core_redirect(bp_get_root_domain() . '/' . bp_get_groups_root_slug() . '/create/');
        }
    }
    // If the save, upload or skip button is hit, lets calculate what we need to save
    if (isset($_POST['save'])) {
        // Check the nonce
        check_admin_referer('groups_create_save_' . bp_get_groups_current_create_step());
        if ('group-details' == bp_get_groups_current_create_step()) {
            if (empty($_POST['group-name']) || empty($_POST['group-desc']) || !strlen(trim($_POST['group-name'])) || !strlen(trim($_POST['group-desc']))) {
                bp_core_add_message(__('Please fill in all of the required fields', 'buddypress'), 'error');
                bp_core_redirect(bp_get_root_domain() . '/' . bp_get_groups_root_slug() . '/create/step/' . bp_get_groups_current_create_step() . '/');
            }
            $new_group_id = isset($bp->groups->new_group_id) ? $bp->groups->new_group_id : 0;
            if (!($bp->groups->new_group_id = groups_create_group(array('group_id' => $new_group_id, 'name' => $_POST['group-name'], 'description' => $_POST['group-desc'], 'slug' => groups_check_slug(sanitize_title(esc_attr($_POST['group-name']))), 'date_created' => bp_core_current_time(), 'status' => 'public')))) {
                bp_core_add_message(__('There was an error saving group details, please try again.', 'buddypress'), 'error');
                bp_core_redirect(bp_get_root_domain() . '/' . bp_get_groups_root_slug() . '/create/step/' . bp_get_groups_current_create_step() . '/');
            }
        }
        if ('group-settings' == bp_get_groups_current_create_step()) {
            $group_status = 'public';
            $group_enable_forum = 1;
            if (!isset($_POST['group-show-forum'])) {
                $group_enable_forum = 0;
            } else {
                // Create the forum if enable_forum = 1
                if (bp_is_active('forums') && !groups_get_groupmeta($bp->groups->new_group_id, 'forum_id')) {
                    groups_new_group_forum();
                }
            }
            if ('private' == $_POST['group-status']) {
                $group_status = 'private';
            } else {
                if ('hidden' == $_POST['group-status']) {
                    $group_status = 'hidden';
                }
            }
            if (!($bp->groups->new_group_id = groups_create_group(array('group_id' => $bp->groups->new_group_id, 'status' => $group_status, 'enable_forum' => $group_enable_forum)))) {
                bp_core_add_message(__('There was an error saving group details, please try again.', 'buddypress'), 'error');
                bp_core_redirect(bp_get_root_domain() . '/' . bp_get_groups_root_slug() . '/create/step/' . bp_get_groups_current_create_step() . '/');
            }
            // Set the invite status
            // Checked against a whitelist for security
            $allowed_invite_status = apply_filters('groups_allowed_invite_status', array('members', 'mods', 'admins'));
            $invite_status = !empty($_POST['group-invite-status']) && in_array($_POST['group-invite-status'], (array) $allowed_invite_status) ? $_POST['group-invite-status'] : 'members';
            groups_update_groupmeta($bp->groups->new_group_id, 'invite_status', $invite_status);
        }
        if ('group-invites' === bp_get_groups_current_create_step()) {
            if (!empty($_POST['friends'])) {
                foreach ((array) $_POST['friends'] as $friend) {
                    groups_invite_user(array('user_id' => $friend, 'group_id' => $bp->groups->new_group_id));
                }
            }
            groups_send_invites(bp_loggedin_user_id(), $bp->groups->new_group_id);
        }
//.........这里部分代码省略.........

 /**
  * Call the create_screen() method, if we're on the right page
  *
  * @since BuddyPress (1.8)
  */
 public function maybe_create_screen()
 {
     if (!bp_is_group_creation_step($this->screens['create']['slug'])) {
         return;
     }
     call_user_func($this->screens['create']['screen_callback'], $this->group_id);
     $this->nonce_field('create');
     // The create screen requires an additional nonce field
     // due to a quirk in the way the templates are built
     wp_nonce_field('groups_create_save_' . bp_get_groups_current_create_step());
 }

//.........这里部分代码省略.........
    }
    if (bp_is_user_change_avatar()) {
        $bp_classes[] = 'change-avatar';
    }
    if (bp_is_user_profile_edit()) {
        $bp_classes[] = 'profile-edit';
    }
    if (bp_is_user_friends_activity()) {
        $bp_classes[] = 'friends-activity';
    }
    if (bp_is_user_groups_activity()) {
        $bp_classes[] = 'groups-activity';
    }
    if (is_user_logged_in()) {
        $bp_classes[] = 'logged-in';
    }
    /** Messages **********************************************************/
    if (bp_is_messages_inbox()) {
        $bp_classes[] = 'inbox';
    }
    if (bp_is_messages_sentbox()) {
        $bp_classes[] = 'sentbox';
    }
    if (bp_is_messages_compose_screen()) {
        $bp_classes[] = 'compose';
    }
    if (bp_is_notices()) {
        $bp_classes[] = 'notices';
    }
    if (bp_is_user_friend_requests()) {
        $bp_classes[] = 'friend-requests';
    }
    if (bp_is_create_blog()) {
        $bp_classes[] = 'create-blog';
    }
    /** Groups ************************************************************/
    if (bp_is_group_leave()) {
        $bp_classes[] = 'leave-group';
    }
    if (bp_is_group_invites()) {
        $bp_classes[] = 'group-invites';
    }
    if (bp_is_group_members()) {
        $bp_classes[] = 'group-members';
    }
    if (bp_is_group_forum_topic()) {
        $bp_classes[] = 'group-forum-topic';
    }
    if (bp_is_group_forum_topic_edit()) {
        $bp_classes[] = 'group-forum-topic-edit';
    }
    if (bp_is_group_forum()) {
        $bp_classes[] = 'group-forum';
    }
    if (bp_is_group_admin_page()) {
        $bp_classes[] = 'group-admin';
        $bp_classes[] = bp_get_group_current_admin_tab();
    }
    if (bp_is_group_create()) {
        $bp_classes[] = 'group-create';
        $bp_classes[] = bp_get_groups_current_create_step();
    }
    if (bp_is_group_home()) {
        $bp_classes[] = 'group-home';
    }
    if (bp_is_single_activity()) {
        $bp_classes[] = 'activity-permalink';
    }
    /** Registration ******************************************************/
    if (bp_is_register_page()) {
        $bp_classes[] = 'registration';
    }
    if (bp_is_activation_page()) {
        $bp_classes[] = 'activation';
    }
    /** Current Component & Action ****************************************/
    if (!bp_is_blog_page()) {
        $bp_classes[] = bp_current_component();
        $bp_classes[] = bp_current_action();
    }
    /** Clean up***********************************************************/
    // We don't want WordPress blog classes to appear on non-blog pages.
    if (!bp_is_blog_page()) {
        // Observe WP custom background body class
        if (in_array('custom-background', (array) $wp_classes)) {
            $bp_classes[] = 'custom-background';
        }
        // Preserve any custom classes already set
        if (!empty($custom_classes)) {
            $wp_classes = (array) $custom_classes;
        } else {
            $wp_classes = array();
        }
    }
    // Merge WP classes with BP classes
    $classes = array_merge((array) $bp_classes, (array) $wp_classes);
    // Remove any duplicates
    $classes = array_unique($classes);
    return apply_filters('bp_get_the_body_class', $classes, $bp_classes, $wp_classes, $custom_classes);
}

//.........这里部分代码省略.........
    if (bp_is_user_friends()) {
        $bp_classes[] = 'my-friends';
    }
    if (bp_is_user_messages()) {
        $bp_classes[] = 'my-messages';
    }
    if (bp_is_user_recent_commments()) {
        $bp_classes[] = 'recent-comments';
    }
    if (bp_is_user_recent_posts()) {
        $bp_classes[] = 'recent-posts';
    }
    if (bp_is_user_change_avatar()) {
        $bp_classes[] = 'change-avatar';
    }
    if (bp_is_user_profile_edit()) {
        $bp_classes[] = 'profile-edit';
    }
    if (bp_is_user_friends_activity()) {
        $bp_classes[] = 'friends-activity';
    }
    if (bp_is_user_groups_activity()) {
        $bp_classes[] = 'groups-activity';
    }
    /** Messages **********************************************************/
    if (bp_is_messages_inbox()) {
        $bp_classes[] = 'inbox';
    }
    if (bp_is_messages_sentbox()) {
        $bp_classes[] = 'sentbox';
    }
    if (bp_is_messages_compose_screen()) {
        $bp_classes[] = 'compose';
    }
    if (bp_is_notices()) {
        $bp_classes[] = 'notices';
    }
    if (bp_is_user_friend_requests()) {
        $bp_classes[] = 'friend-requests';
    }
    if (bp_is_create_blog()) {
        $bp_classes[] = 'create-blog';
    }
    /** Groups ************************************************************/
    if (bp_is_group()) {
        $bp_classes[] = 'group-' . groups_get_current_group()->slug;
    }
    if (bp_is_group_leave()) {
        $bp_classes[] = 'leave-group';
    }
    if (bp_is_group_invites()) {
        $bp_classes[] = 'group-invites';
    }
    if (bp_is_group_members()) {
        $bp_classes[] = 'group-members';
    }
    if (bp_is_group_forum_topic()) {
        $bp_classes[] = 'group-forum-topic';
    }
    if (bp_is_group_forum_topic_edit()) {
        $bp_classes[] = 'group-forum-topic-edit';
    }
    if (bp_is_group_forum()) {
        $bp_classes[] = 'group-forum';
    }
    if (bp_is_group_admin_page()) {
        $bp_classes[] = 'group-admin';
        $bp_classes[] = bp_get_group_current_admin_tab();
    }
    if (bp_is_group_create()) {
        $bp_classes[] = 'group-create';
        $bp_classes[] = bp_get_groups_current_create_step();
    }
    if (bp_is_group_home()) {
        $bp_classes[] = 'group-home';
    }
    if (bp_is_single_activity()) {
        $bp_classes[] = 'activity-permalink';
    }
    /** Registration ******************************************************/
    if (bp_is_register_page()) {
        $bp_classes[] = 'registration';
    }
    if (bp_is_activation_page()) {
        $bp_classes[] = 'activation';
    }
    /** Current Component & Action ****************************************/
    if (!bp_is_blog_page()) {
        $bp_classes[] = bp_current_component();
        $bp_classes[] = bp_current_action();
    }
    /** Clean up ***********************************************************/
    // Add BuddyPress class if we are within a BuddyPress page
    if (!bp_is_blog_page()) {
        $bp_classes[] = 'buddypress';
    }
    // Merge WP classes with BuddyPress classes and remove any duplicates
    $classes = array_unique(array_merge((array) $bp_classes, (array) $wp_classes));
    return apply_filters('bp_get_the_body_class', $classes, $bp_classes, $wp_classes, $custom_classes);
}

function ass_save_default_subscription($group)
{
    if (isset($_POST['ass-default-subscription']) && ($postval = $_POST['ass-default-subscription'])) {
        if ($postval && $postval != 'no') {
            groups_update_groupmeta($group->id, 'ass_default_subscription', $postval);
            // during group creation, also save the sub level for the group creator
            if ('group-settings' == bp_get_groups_current_create_step()) {
                ass_group_subscription($postval, $group->creator_id, $group->id);
            }
        } elseif ($postval == 'no') {
            groups_delete_groupmeta($group->id, 'ass_default_subscription');
        }
    }
}

 function submit_guild(&$group)
 {
     // If the user is allowed to delete posts, then they can also create guilds and bypass validation requirements
     if (!bp_is_group_create() || current_user_can('delete_others_posts')) {
         return;
     }
     // Get the BP object
     global $bp;
     // Retrieve and sanitize submission data
     $group->server = $_POST['group-server'];
     $group->interests = implode(',', $_POST['group-interests']);
     $group->faction = $_POST['group-faction'];
     $group->website = esc_url($_POST['group-website']);
     $group->style = $_POST['group-style'];
     // Validate submitted data
     if ('' === $group->server) {
         $error = 'Please select your guild's platform and server.';
     } elseif (empty($group->interests)) {
         $error = 'Please select your guild's primary interests.';
     } elseif (empty($group->faction)) {
         $error = 'Please select your guild's primary alliance.';
     }
     // Assign the current group to the group object
     $bp->groups->current_group = $group;
     // If there was an error, display it and redirect
     if (isset($error)) {
         bp_core_add_message($error, 'error');
         bp_core_redirect(bp_get_root_domain() . '/' . bp_get_groups_root_slug() . '/create/step/' . bp_get_groups_current_create_step() . '/');
     } else {
         // Get the current user
         $user = new WP_User(get_current_user_id());
         $username = $user->display_name;
         $user_email = $user->user_email;
         $profile = bp_core_get_userlink($user->ID);
         // Set email headers
         $emailto = '[email protected]';
         $subject = 'Guild Creation Request From ' . $username;
         $headers[] = "From: {$username} <{$user_email}>\r\n";
         $headers[] = "Content-Type: text/html; charset=UTF-8";
         // User Information
         $body = "<h3>Submitting User</h3>";
         $body .= "<ul>";
         $body .= '<li>Guild Leader: ' . $profile . '</li>';
         $body .= '<li>Email: ' . $user_email . '</li>';
         $body .= "</ul>";
         // Guild Information
         $body .= "<h3>Guild Information</h3>";
         $body .= "<ul>";
         $body .= '<li>Guild Name: ' . $group->name . '</li>';
         $body .= '<li>Website: ' . $group->website . '</li>';
         $body .= '<li>Server: ' . $group->server . '</li>';
         $body .= '<li>Faction: ' . $group->faction . '</li>';
         $body .= '<li>Interests: ' . $group->interests . '</li>';
         $body .= '<li>Style: ' . $group->style . '</li>';
         $body .= "</ul>";
         // Guild Description
         $body .= "<h3>Guild Description</h3>";
         $body .= '<div>' . stripslashes($group->description) . '</div>';
         // Send the mail!
         wp_mail($emailto, $subject, $body, $headers);
         // Redirect
         bp_core_add_message('Thank you for submitting your guild, ' . $user->fullname . '. Your request was successfully sent. We will review it and respond as soon as possible. If your request is approved, you will be added to your group, and promoted to guild leader. We will contact you via email regarding your guild request once it has been processed. Thank you for contributing to Tamriel Foundry!');
         bp_core_redirect(SITEURL . '/' . bp_get_groups_root_slug());
     }
 }

function myfossil_group_creation_tabs()
{
    global $bp;
    if (!is_array($bp->groups->group_creation_steps)) {
        return false;
    }
    if (!bp_get_groups_current_create_step()) {
        $keys = array_keys($bp->groups->group_creation_steps);
        $bp->groups->current_create_step = array_shift($keys);
    }
    foreach ((array) $bp->groups->group_creation_steps as $slug => $step) {
        $is_enabled = bp_are_previous_group_creation_steps_complete($slug);
        $selected = bp_get_groups_current_create_step() == $slug;
        if ($selected) {
            $tpl = '<li class="current active selected">';
        } else {
            $tpl = "<li>";
        }
        if ($is_enabled) {
            $tpl .= sprintf('<a href="%s/%s/create/step/%s">%s</a>', bp_get_root_domain(), bp_get_groups_root_slug(), $slug, $step['name']);
        } else {
            $tpl .= sprintf('<a>%s</a>', $step['name']);
        }
        $tpl .= "</li>";
        print $tpl;
    }
    unset($is_enabled);
    do_action('groups_creation_tabs');
}