CaffGeek/MBACNationals

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Web.Admin/2014/wordpress/wp-admin/includes/class-wp-upgrader-skins.php

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3 days
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<?php
/**
 * The User Interface "Skins" for the WordPress File Upgrader
 *
 * @package WordPress
 * @subpackage Upgrader
 * @since 2.8.0
 */

/**
 * Generic Skin for the WordPress Upgrader classes. This skin is designed to be extended for specific purposes.
 *
 * @package WordPress
 * @subpackage Upgrader
 * @since 2.8.0
 */
class WP_Upgrader_Skin {

    var $upgrader;
    var $done_header = false;
    var $result = false;

    function __construct($args = array()) {
        $defaults = array( 'url' => '', 'nonce' => '', 'title' => '', 'context' => false );
        $this->options = wp_parse_args($args, $defaults);
    }

    function set_upgrader(&$upgrader) {
        if ( is_object($upgrader) )
            $this->upgrader =& $upgrader;
        $this->add_strings();
    }

    function add_strings() {
    }

    function set_result($result) {
        $this->result = $result;
    }

    function request_filesystem_credentials($error = false) {
        $url = $this->options['url'];
        $context = $this->options['context'];
        if ( !empty($this->options['nonce']) )
            $url = wp_nonce_url($url, $this->options['nonce']);
        return request_filesystem_credentials($url, '', $error, $context); //Possible to bring inline, Leaving as is for now.
    }

    function header() {
        if ( $this->done_header )
            return;
        $this->done_header = true;
        echo '<div class="wrap">';
        echo '<h2>' . $this->options['title'] . '</h2>';
    }
    function footer() {
        echo '</div>';
    }

    function error($errors) {
        if ( ! $this->done_header )
            $this->header();
        if ( is_string($errors) ) {
            $this->feedback($errors);
        } elseif ( is_wp_error($errors) && $errors->get_error_code() ) {
            foreach ( $errors->get_error_messages() as $message ) {
                if ( $errors->get_error_data() && is_string( $errors->get_error_data() ) )
                    $this->feedback($message . ' ' . esc_html( strip_tags( $errors->get_error_data() ) ) );
                else
                    $this->feedback($message);
            }
        }
    }

    function feedback($string) {
        if ( isset( $this->upgrader->strings[$string] ) )
            $string = $this->upgrader->strings[$string];

        if ( strpos($string, '%') !== false ) {
            $args = func_get_args();
            $args = array_splice($args, 1);
            if ( $args ) {
                $args = array_map( 'strip_tags', $args );
                $args = array_map( 'esc_html', $args );
                $string = vsprintf($string, $args);
            }
        }
        if ( empty($string) )
            return;
        show_message($string);
    }
    function before() {}
    function after() {}

    /**
     * Output JavaScript that calls function to decrement the update counts.
     *
     * @since 3.9.0
     *
     * @param string $type Type of update count to decrement. Likely values include 'plugin',
     *                     'theme', 'translation', etc.
     */
    protected function decrement_update_count( $type ) {
        if ( ! $this->result || is_wp_error( $this->result ) || 'up_to_date' === $this->result ) {
            return;
        }
        echo '<script type="text/javascript">
                (function( wp ) {
                    if ( wp && wp.updates.decrementCount ) {
                        wp.updates.decrementCount( "' . $type . '" );
                    }
                })( window.wp );
            </script>';
    }
}

/**
 * Plugin Upgrader Skin for WordPress Plugin Upgrades.
 *
 * @package WordPress
 * @subpackage Upgrader
 * @since 2.8.0
 */
class Plugin_Upgrader_Skin extends WP_Upgrader_Skin {
    var $plugin = '';
    var $plugin_active = false;
    var $plugin_network_active = false;

    function __construct($args = array()) {
        $defaults = array( 'url' => '', 'plugin' => '', 'nonce' => '', 'title' => __('Update Plugin') );
        $args = wp_parse_args($args, $defaults);

        $this->plugin = $args['plugin'];

        $this->plugin_active = is_plugin_active( $this->plugin );
        $this->plugin_network_active = is_plugin_active_for_network( $this->plugin );

        parent::__construct($args);
    }

    function after() {
        $this->plugin = $this->upgrader->plugin_info();
        if ( !empty($this->plugin) && !is_wp_error($this->result) && $this->plugin_active ){
            echo '<iframe style="border:0;overflow:hidden" width="100%" height="170px" src="' . wp_nonce_url('update.php?action=activate-plugin&networkwide=' . $this->plugin_network_active . '&plugin=' . urlencode( $this->plugin ), 'activate-plugin_' . $this->plugin) .'"></iframe>';
        }

        $this->decrement_update_count( 'plugin' );

        $update_actions =  array(
            'activate_plugin' => '<a href="' . wp_nonce_url('plugins.php?action=activate&amp;plugin=' . urlencode( $this->plugin ), 'activate-plugin_' . $this->plugin) . '" title="' . esc_attr__('Activate this plugin') . '" target="_parent">' . __('Activate Plugin') . '</a>',
            'plugins_page' => '<a href="' . self_admin_url('plugins.php') . '" title="' . esc_attr__('Go to plugins page') . '" target="_parent">' . __('Return to Plugins page') . '</a>'
        );
        if ( $this->plugin_active || ! $this->result || is_wp_error( $this->result ) || ! current_user_can( 'activate_plugins' ) )
            unset( $update_actions['activate_plugin'] );

        /**
         * Filter the list of action links available following a single plugin update.
         *
         * @since 2.7.0
         *
         * @param array  $update_actions Array of plugin action links.
         * @param string $plugin         Path to the plugin file.
         */
        $update_actions = apply_filters( 'update_plugin_complete_actions', $update_actions, $this->plugin );

        if ( ! empty($update_actions) )
            $this->feedback(implode(' | ', (array)$update_actions));
    }
}

/**
 * Plugin Upgrader Skin for WordPress Plugin Upgrades.
 *
 * @package WordPress
 * @subpackage Upgrader
 * @since 3.0.0
 */
class Bulk_Upgrader_Skin extends WP_Upgrader_Skin {
    var $in_loop = false;
    var $error = false;

    function __construct($args = array()) {
        $defaults = array( 'url' => '', 'nonce' => '' );
        $args = wp_parse_args($args, $defaults);

        parent::__construct($args);
    }

    function add_strings() {
        $this->upgrader->strings['skin_upgrade_start'] = __('The update process is starting. This process may take a while on some hosts, so please be patient.');
        $this->upgrader->strings['skin_update_failed_error'] = __('An error occurred while updating %1$s: <strong>%2$s</strong>');
        $this->upgrader->strings['skin_update_failed'] = __('The update of %1$s failed.');
        $this->upgrader->strings['skin_update_successful'] = __('%1$s updated successfully.').' <a onclick="%2$s" href="#" class="hide-if-no-js"><span>'.__('Show Details').'</span><span class="hidden">'.__('Hide Details').'</span>.</a>';
        $this->upgrader->strings['skin_upgrade_end'] = __('All updates have been completed.');
    }

    function feedback($string) {
        if ( isset( $this->upgrader->strings[$string] ) )
            $string = $this->upgrader->strings[$string];

        if ( strpos($string, '%') !== false ) {
            $args = func_get_args();
            $args = array_splice($args, 1);
            if ( $args ) {
                $args = array_map( 'strip_tags', $args );
                $args = array_map( 'esc_html', $args );
                $string = vsprintf($string, $args);
            }
        }
        if ( empty($string) )
            return;
        if ( $this->in_loop )
            echo "$string<br />\n";
        else
            echo "<p>$string</p>\n";
    }

    function header() {
        // Nothing, This will be displayed within a iframe.
    }

    function footer() {
        // Nothing, This will be displayed within a iframe.
    }
    function error($error) {
        if ( is_string($error) && isset( $this->upgrader->strings[$error] ) )
            $this->error = $this->upgrader->strings[$error];

        if ( is_wp_error($error) ) {
            foreach ( $error->get_error_messages() as $emessage ) {
                if ( $error->get_error_data() && is_string( $error->get_error_data() ) )
                    $messages[] = $emessage . ' ' . esc_html( strip_tags( $error->get_error_data() ) );
                else
                    $messages[] = $emessage;
            }
            $this->error = implode(', ', $messages);
        }
        echo '<script type="text/javascript">jQuery(\'.waiting-' . esc_js($this->upgrader->update_current) . '\').hide();</script>';
    }

    function bulk_header() {
        $this->feedback('skin_upgrade_start');
    }

    function bulk_footer() {
        $this->feedback('skin_upgrade_end');
    }

    function before($title = '') {
        $this->in_loop = true;
        printf( '<h4>' . $this->upgrader->strings['skin_before_update_header'] . ' <span class="spinner waiting-' . $this->upgrader->update_current . '"></span></h4>',  $title, $this->upgrader->update_current, $this->upgrader->update_count);
        echo '<script type="text/javascript">jQuery(\'.waiting-' . esc_js($this->upgrader->update_current) . '\').css("display", "inline-block");</script>';
        echo '<div class="update-messages hide-if-js" id="progress-' . esc_attr($this->upgrader->update_current) . '"><p>';
        $this->flush_output();
    }

    function after($title = '') {
        echo '</p></div>';
        if ( $this->error || ! $this->result ) {
            if ( $this->error )
                echo '<div class="error"><p>' . sprintf($this->upgrader->strings['skin_update_failed_error'], $title, $this->error) . '</p></div>';
            else
                echo '<div class="error"><p>' . sprintf($this->upgrader->strings['skin_update_failed'], $title) . '</p></div>';

            echo '<script type="text/javascript">jQuery(\'#progress-' . esc_js($this->upgrader->update_current) . '\').show();</script>';
        }
        if ( $this->result && ! is_wp_error( $this->result ) ) {
            if ( ! $this->error )
                echo '<div class="updated"><p>' . sprintf($this->upgrader->strings['skin_update_successful'], $title, 'jQuery(\'#progress-' . esc_js($this->upgrader->update_current) . '\').toggle();jQuery(\'span\', this).toggle(); return false;') . '</p></div>';
            echo '<script type="text/javascript">jQuery(\'.waiting-' . esc_js($this->upgrader->update_current) . '\').hide();</script>';
        }

        $this->reset();
        $this->flush_output();
    }

    function reset() {
        $this->in_loop = false;
        $this->error = false;
    }

    function flush_output() {
        wp_ob_end_flush_all();
        flush();
    }

    /**
     * Output JavaScript that sends message to parent window to decrement the update counts.
     *
     * @since 3.9.0
     *
     * @param string $type Type of update count to decrement. Likely values include 'plugin',
     *                     'theme', 'translation', etc.
     */
    protected function decrement_update_count( $type ) {
        if ( ! $this->result || is_wp_error( $this->result ) || 'up_to_date' === $this->result ) {
            return;
        }
        echo '<script type="text/javascript">
                if ( window.postMessage && JSON ) {
                    window.parent.postMessage( JSON.stringify( { action: "decrementUpdateCount", upgradeType: "' . $type . '" } ), window.location.protocol + "//" + window.location.hostname );
                }
            </script>';
    }
}

class Bulk_Plugin_Upgrader_Skin extends Bulk_Upgrader_Skin {
    var $plugin_info = array(); // Plugin_Upgrader::bulk() will fill this in.

    function __construct($args = array()) {
        parent::__construct($args);
    }

    function add_strings() {
        parent::add_strings();
        $this->upgrader->strings['skin_before_update_header'] = __('Updating Plugin %1$s (%2$d/%3$d)');
    }

    function before($title = '') {
        parent::before($this->plugin_info['Title']);
    }

    function after($title = '') {
        parent::after($this->plugin_info['Title']);
        $this->decrement_update_count( 'plugin' );
    }
    function bulk_footer() {
        parent::bulk_footer();
        $update_actions =  array(
            'plugins_page' => '<a href="' . self_admin_url('plugins.php') . '" title="' . esc_attr__('Go to plugins page') . '" target="_parent">' . __('Return to Plugins page') . '</a>',
            'updates_page' => '<a href="' . self_admin_url('update-core.php') . '" title="' . esc_attr__('Go to WordPress Updates page') . '" target="_parent">' . __('Return to WordPress Updates') . '</a>'
        );
        if ( ! current_user_can( 'activate_plugins' ) )
            unset( $update_actions['plugins_page'] );

        /**
         * Filter the list of action links available following bulk plugin updates.
         *
         * @since 3.0.0
         *
         * @param array $update_actions Array of plugin action links.
         * @param array $plugin_info    Array of information for the last-updated plugin.
         */
        $update_actions = apply_filters( 'update_bulk_plugins_complete_actions', $update_actions, $this->plugin_info );

        if ( ! empty($update_actions) )
            $this->feedback(implode(' | ', (array)$update_actions));
    }
}

class Bulk_Theme_Upgrader_Skin extends Bulk_Upgrader_Skin {
    var $theme_info = array(); // Theme_Upgrader::bulk() will fill this in.

    function __construct($args = array()) {
        parent::__construct($args);
    }

    function add_strings() {
        parent::add_strings();
        $this->upgrader->strings['skin_before_update_header'] = __('Updating Theme %1$s (%2$d/%3$d)');
    }

    function before($title = '') {
        parent::before( $this->theme_info->display('Name') );
    }

    function after($title = '') {
        parent::after( $this->theme_info->display('Name') );
        $this->decrement_update_count( 'theme' );
    }

    function bulk_footer() {
        parent::bulk_footer();
        $update_actions =  array(
            'themes_page' => '<a href="' . self_admin_url('themes.php') . '" title="' . esc_attr__('Go to themes page') . '" target="_parent">' . __('Return to Themes page') . '</a>',
            'updates_page' => '<a href="' . self_admin_url('update-core.php') . '" title="' . esc_attr__('Go to WordPress Updates page') . '" target="_parent">' . __('Return to WordPress Updates') . '</a>'
        );
        if ( ! current_user_can( 'switch_themes' ) && ! current_user_can( 'edit_theme_options' ) )
            unset( $update_actions['themes_page'] );

        /**
         * Filter the list of action links available following bulk theme updates.
         *
         * @since 3.0.0
         *
         * @param array $update_actions Array of theme action links.
         * @param array $theme_info     Array of information for the last-updated theme.
         */
        $update_actions = apply_filters( 'update_bulk_theme_complete_actions', $update_actions, $this->theme_info );

        if ( ! empty($update_actions) )
            $this->feedback(implode(' | ', (array)$update_actions));
    }
}

/**
 * Plugin Installer Skin for WordPress Plugin Installer.
 *
 * @package WordPress
 * @subpackage Upgrader
 * @since 2.8.0
 */
class Plugin_Installer_Skin extends WP_Upgrader_Skin {
    var $api;
    var $type;

    function __construct($args = array()) {
        $defaults = array( 'type' => 'web', 'url' => '', 'plugin' => '', 'nonce' => '', 'title' => '' );
        $args = wp_parse_args($args, $defaults);

        $this->type = $args['type'];
        $this->api = isset($args['api']) ? $args['api'] : array();

        parent::__construct($args);
    }

    function before() {
        if ( !empty($this->api) )
            $this->upgrader->strings['process_success'] = sprintf( __('Successfully installed the plugin <strong>%s %s</strong>.'), $this->api->name, $this->api->version);
    }

    function after() {

        $plugin_file = $this->upgrader->plugin_info();

        $install_actions = array();

        $from = isset($_GET['from']) ? wp_unslash( $_GET['from'] ) : 'plugins';

        if ( 'import' == $from )
            $install_actions['activate_plugin'] = '<a href="' . wp_nonce_url('plugins.php?action=activate&amp;from=import&amp;plugin=' . urlencode( $plugin_file ), 'activate-plugin_' . $plugin_file) . '" title="' . esc_attr__('Activate this plugin') . '" target="_parent">' . __('Activate Plugin &amp; Run Importer') . '</a>';
        else
            $install_actions['activate_plugin'] = '<a href="' . wp_nonce_url('plugins.php?action=activate&amp;plugin=' . urlencode( $plugin_file ), 'activate-plugin_' . $plugin_file) . '" title="' . esc_attr__('Activate this plugin') . '" target="_parent">' . __('Activate Plugin') . '</a>';

        if ( is_multisite() && current_user_can( 'manage_network_plugins' ) ) {
            $install_actions['network_activate'] = '<a href="' . wp_nonce_url('plugins.php?action=activate&amp;networkwide=1&amp;plugin=' . urlencode( $plugin_file ), 'activate-plugin_' . $plugin_file) . '" title="' . esc_attr__('Activate this plugin for all sites in this network') . '" target="_parent">' . __('Network Activate') . '</a>';
            unset( $install_actions['activate_plugin'] );
        }

        if ( 'import' == $from )
            $install_actions['importers_page'] = '<a href="' . admin_url('import.php') . '" title="' . esc_attr__('Return to Importers') . '" target="_parent">' . __('Return to Importers') . '</a>';
        else if ( $this->type == 'web' )
            $install_actions['plugins_page'] = '<a href="' . self_admin_url('plugin-install.php') . '" title="' . esc_attr__('Return to Plugin Installer') . '" target="_parent">' . __('Return to Plugin Installer') . '</a>';
        else
            $install_actions['plugins_page'] = '<a href="' . self_admin_url('plugins.php') . '" title="' . esc_attr__('Return to Plugins page') . '" target="_parent">' . __('Return to Plugins page') . '</a>';

        if ( ! $this->result || is_wp_error($this->result) ) {
            unset( $install_actions['activate_plugin'], $install_actions['network_activate'] );
        } elseif ( ! current_user_can( 'activate_plugins' ) ) {
            unset( $install_actions['activate_plugin'] );
        }

        /**
         * Filter the list of action links available following a single plugin installation.
         *
         * @since 2.7.0
         *
         * @param array  $install_actions Array of plugin action links.
         * @param object $api             Object containing WordPress.org API plugin data. Empty
         *                                for non-API installs, such as when a plugin is installed
         *                                via upload.
         * @param string $plugin_file     Path to the plugin file.
         */
        $install_actions = apply_filters( 'install_plugin_complete_actions', $install_actions, $this->api, $plugin_file );

        if ( ! empty($install_actions) )
            $this->feedback(implode(' | ', (array)$install_actions));
    }
}

/**
 * Theme Installer Skin for the WordPress Theme Installer.
 *
 * @package WordPress
 * @subpackage Upgrader
 * @since 2.8.0
 */
class Theme_Installer_Skin extends WP_Upgrader_Skin {
    var $api;
    var $type;

    function __construct($args = array()) {
        $defaults = array( 'type' => 'web', 'url' => '', 'theme' => '', 'nonce' => '', 'title' => '' );
        $args = wp_parse_args($args, $defaults);

        $this->type = $args['type'];
        $this->api = isset($args['api']) ? $args['api'] : array();

        parent::__construct($args);
    }

    function before() {
        if ( !empty($this->api) )
            $this->upgrader->strings['process_success'] = sprintf( $this->upgrader->strings['process_success_specific'], $this->api->name, $this->api->version);
    }

    function after() {
        if ( empty($this->upgrader->result['destination_name']) )
            return;

        $theme_info = $this->upgrader->theme_info();
        if ( empty( $theme_info ) )
            return;

        $name       = $theme_info->display('Name');
        $stylesheet = $this->upgrader->result['destination_name'];
        $template   = $theme_info->get_template();

        $preview_link = add_query_arg( array(
            'preview'    => 1,
            'template'   => urlencode( $template ),
            'stylesheet' => urlencode( $stylesheet ),
        ), trailingslashit( home_url() ) );

        $activate_link = add_query_arg( array(
            'action'     => 'activate',
            'template'   => urlencode( $template ),
            'stylesheet' => urlencode( $stylesheet ),
        ), admin_url('themes.php') );
        $activate_link = wp_nonce_url( $activate_link, 'switch-theme_' . $stylesheet );

        $install_actions = array();
        $install_actions['preview']  = '<a href="' . esc_url( $preview_link ) . '" class="hide-if-customize" title="' . esc_attr( sprintf( __('Preview &#8220;%s&#8221;'), $name ) ) . '">' . __('Preview') . '</a>';
        $install_actions['preview'] .= '<a href="' . wp_customize_url( $stylesheet ) . '" class="hide-if-no-customize load-customize" title="' . esc_attr( sprintf( __('Preview &#8220;%s&#8221;'), $name ) ) . '">' . __('Live Preview') . '</a>';
        $install_actions['activate'] = '<a href="' . esc_url( $activate_link ) . '" class="activatelink" title="' . esc_attr( sprintf( __('Activate &#8220;%s&#8221;'), $name ) ) . '">' . __('Activate') . '</a>';

        if ( is_network_admin() && current_user_can( 'manage_network_themes' ) )
            $install_actions['network_enable'] = '<a href="' . esc_url( wp_nonce_url( 'themes.php?action=enable&amp;theme=' . urlencode( $stylesheet ), 'enable-theme_' . $stylesheet ) ) . '" title="' . esc_attr__( 'Enable this theme for all sites in this network' ) . '" target="_parent">' . __( 'Network Enable' ) . '</a>';

        if ( $this->type == 'web' )
            $install_actions['themes_page'] = '<a href="' . self_admin_url('theme-install.php') . '" title="' . esc_attr__('Return to Theme Installer') . '" target="_parent">' . __('Return to Theme Installer') . '</a>';
        elseif ( current_user_can( 'switch_themes' ) || current_user_can( 'edit_theme_options' ) )
            $install_actions['themes_page'] = '<a href="' . self_admin_url('themes.php') . '" title="' . esc_attr__('Themes page') . '" target="_parent">' . __('Return to Themes page') . '</a>';

        if ( ! $this->result || is_wp_error($this->result) || is_network_admin() || ! current_user_can( 'switch_themes' ) )
            unset( $install_actions['activate'], $install_actions['preview'] );

        /**
         * Filter the list of action links available following a single theme installation.
         *
         * @since 2.8.0
         *
         * @param array    $install_actions Array of theme action links.
         * @param object   $api             Object containing WordPress.org API theme data.
         * @param string   $stylesheet      Theme directory name.
         * @param WP_Theme $theme_info      Theme object.
         */
        $install_actions = apply_filters( 'install_theme_complete_actions', $install_actions, $this->api, $stylesheet, $theme_info );
        if ( ! empty($install_actions) )
            $this->feedback(implode(' | ', (array)$install_actions));
    }
}

/**
 * Theme Upgrader Skin for WordPress Theme Upgrades.
 *
 * @package WordPress
 * @subpackage Upgrader
 * @since 2.8.0
 */
class Theme_Upgrader_Skin extends WP_Upgrader_Skin {
    var $theme = '';

    function __construct($args = array()) {
        $defaults = array( 'url' => '', 'theme' => '', 'nonce' => '', 'title' => __('Update Theme') );
        $args = wp_parse_args($args, $defaults);

        $this->theme = $args['theme'];

        parent::__construct($args);
    }

    function after() {
        $this->decrement_update_count( 'theme' );

        $update_actions = array();
        if ( ! empty( $this->upgrader->result['destination_name'] ) && $theme_info = $this->upgrader->theme_info() ) {
            $name       = $theme_info->display('Name');
            $stylesheet = $this->upgrader->result['destination_name'];
            $template   = $theme_info->get_template();

            $preview_link = add_query_arg( array(
                'preview'    => 1,
                'template'   => urlencode( $template ),
                'stylesheet' => urlencode( $stylesheet ),
            ), trailingslashit( home_url() ) );

            $activate_link = add_query_arg( array(
                'action'     => 'activate',
                'template'   => urlencode( $template ),
                'stylesheet' => urlencode( $stylesheet ),
            ), admin_url('themes.php') );
            $activate_link = wp_nonce_url( $activate_link, 'switch-theme_' . $stylesheet );

            if ( get_stylesheet() == $stylesheet ) {
                if ( current_user_can( 'edit_theme_options' ) )
                    $update_actions['preview']  = '<a href="' . wp_customize_url( $stylesheet ) . '" class="hide-if-no-customize load-customize" title="' . esc_attr( sprintf( __('Customize &#8220;%s&#8221;'), $name ) ) . '">' . __('Customize') . '</a>';
            } elseif ( current_user_can( 'switch_themes' ) ) {
                $update_actions['preview']  = '<a href="' . esc_url( $preview_link ) . '" class="hide-if-customize" title="' . esc_attr( sprintf( __('Preview &#8220;%s&#8221;'), $name ) ) . '">' . __('Preview') . '</a>';
                $update_actions['preview'] .= '<a href="' . wp_customize_url( $stylesheet ) . '" class="hide-if-no-customize load-customize" title="' . esc_attr( sprintf( __('Preview &#8220;%s&#8221;'), $name ) ) . '">' . __('Live Preview') . '</a>';
                $update_actions['activate'] = '<a href="' . esc_url( $activate_link ) . '" class="activatelink" title="' . esc_attr( sprintf( __('Activate &#8220;%s&#8221;'), $name ) ) . '">' . __('Activate') . '</a>';
            }

            if ( ! $this->result || is_wp_error( $this->result ) || is_network_admin() )
                unset( $update_actions['preview'], $update_actions['activate'] );
        }

        $update_actions['themes_page'] = '<a href="' . self_admin_url('themes.php') . '" title="' . esc_attr__('Return to Themes page') . '" target="_parent">' . __('Return to Themes page') . '</a>';

        /**
         * Filter the list of action links available following a single theme update.
         *
         * @since 2.8.0
         *
         * @param array  $update_actions Array of theme action links.
         * @param string $theme          Theme directory name.
         */
        $update_actions = apply_filters( 'update_theme_complete_actions', $update_actions, $this->theme );

        if ( ! empty($update_actions) )
            $this->feedback(implode(' | ', (array)$update_actions));
    }
}

/**
 * Translation Upgrader Skin for WordPress Translation Upgrades.
 *
 * @package WordPress
 * @subpackage Upgrader
 * @since 3.7.0
 */
class Language_Pack_Upgrader_Skin extends WP_Upgrader_Skin {
    var $language_update = null;
    var $done_header = false;
    var $display_footer_actions = true;

    function __construct( $args = array() ) {
        $defaults = array( 'url' => '', 'nonce' => '', 'title' => __( 'Update Translations' ), 'skip_header_footer' => false );
        $args = wp_parse_args( $args, $defaults );
        if ( $args['skip_header_footer'] ) {
            $this->done_header = true;
            $this->display_footer_actions = false;
        }
        parent::__construct( $args );
    }

    function before() {
        $name = $this->upgrader->get_name_for_update( $this->language_update );

        echo '<div class="update-messages lp-show-latest">';

        printf( '<h4>' . __( 'Updating translations for %1$s (%2$s)&#8230;' ) . '</h4>', $name, $this->language_update->language );
    }

    function error( $error ) {
        echo '<div class="lp-error">';
        parent::error( $error );
        echo '</div>';
    }

    function after() {
        echo '</div>';
    }

    function bulk_footer() {
        $this->decrement_update_count( 'translation' );
        $update_actions = array();
        $update_actions['updates_page'] = '<a href="' . self_admin_url( 'update-core.php' ) . '" title="' . esc_attr__( 'Go to WordPress Updates page' ) . '" target="_parent">' . __( 'Return to WordPress Updates' ) . '</a>';

        /**
         * Filter the list of action links available following a translations update.
         *
         * @since 3.7.0
         *
         * @param array $update_actions Array of translations update links.
         */
        $update_actions = apply_filters( 'update_translations_complete_actions', $update_actions );

        if ( $update_actions && $this->display_footer_actions )
            $this->feedback( implode( ' | ', $update_actions ) );

        parent::footer();
    }
}

/**
 * Upgrader Skin for Automatic WordPress Upgrades
 *
 * This skin is designed to be used when no output is intended, all output
 * is captured and stored for the caller to process and log/email/discard.
 *
 * @package WordPress
 * @subpackage Upgrader
 * @since 3.7.0
 */
class Automatic_Upgrader_Skin extends WP_Upgrader_Skin {
    protected $messages = array();

    function request_filesystem_credentials( $error = false, $context = '' ) {
        if ( $context )
            $this->options['context'] = $context;
        // TODO: fix up request_filesystem_credentials(), or split it, to allow us to request a no-output version
        // This will output a credentials form in event of failure, We don't want that, so just hide with a buffer
        ob_start();
        $result = parent::request_filesystem_credentials( $error );
        ob_end_clean();
        return $result;
    }

    function get_upgrade_messages() {
        return $this->messages;
    }

    function feedback( $data ) {
        if ( is_wp_error( $data ) )
            $string = $data->get_error_message();
        else if ( is_array( $data ) )
            return;
        else
            $string = $data;

        if ( ! empty( $this->upgrader->strings[ $string ] ) )
            $string = $this->upgrader->strings[ $string ];

        if ( strpos( $string, '%' ) !== false ) {
            $args = func_get_args();
            $args = array_splice( $args, 1 );
            if ( ! empty( $args ) )
                $string = vsprintf( $string, $args );
        }

        $string = trim( $string );

        // Only allow basic HTML in the messages, as it'll be used in emails/logs rather than direct browser output.
        $string = wp_kses( $string, array(
            'a' => array(
                'href' => true
            ),
            'br' => true,
            'em' => true,
            'strong' => true,
        ) );

        if ( empty( $string ) )
            return;

        $this->messages[] = $string;
    }

    function header() {
        ob_start();
    }

    function footer() {
        $output = ob_get_contents();
        if ( ! empty( $output ) )
            $this->feedback( $output );
        ob_end_clean();
    }

    function bulk_header() {}
    function bulk_footer() {}
    function before() {}
    function after() {}
}