~canonical-sysadmins/wordpress/4.7.2

<?php

/**

 * Themes List Table class.

 *

 * @package WordPress

 * @subpackage List_Table

 * @since 3.1.0

 * @access private

 */

class WP_Themes_List_Table extends WP_List_Table {

 

        protected $search_terms = array();

        public $features = array();

 

        /**

         * Constructor.

         *

         * @since 3.1.0

         * @access public

         *

         * @see WP_List_Table::__construct() for more information on default arguments.

         *

         * @param array $args An associative array of arguments.

         */

        public function __construct( $args = array() ) {

                parent::__construct( array(

                        'ajax' => true,

                        'screen' => isset( $args['screen'] ) ? $args['screen'] : null,

                ) );

        }

 

        public function ajax_user_can() {

                // Do not check edit_theme_options here. AJAX calls for available themes require switch_themes.

                return current_user_can( 'switch_themes' );

        }

 

        public function prepare_items() {

                $themes = wp_get_themes( array( 'allowed' => true ) );

 

                if ( ! empty( $_REQUEST['s'] ) )

                        $this->search_terms = array_unique( array_filter( array_map( 'trim', explode( ',', strtolower( wp_unslash( $_REQUEST['s'] ) ) ) ) ) );

 

                if ( ! empty( $_REQUEST['features'] ) )

                        $this->features = $_REQUEST['features'];

 

                if ( $this->search_terms || $this->features ) {

                        foreach ( $themes as $key => $theme ) {

                                if ( ! $this->search_theme( $theme ) )

                                        unset( $themes[ $key ] );

                        }

                }

 

                unset( $themes[ get_option( 'stylesheet' ) ] );

                WP_Theme::sort_by_name( $themes );

 

                $per_page = 36;

                $page = $this->get_pagenum();

 

                $start = ( $page - 1 ) * $per_page;

 

                $this->items = array_slice( $themes, $start, $per_page, true );

 

                $this->set_pagination_args( array(

                        'total_items' => count( $themes ),

                        'per_page' => $per_page,

                        'infinite_scroll' => true,

                ) );

        }

 

        public function no_items() {

                if ( $this->search_terms || $this->features ) {

                        _e( 'No items found.' );

                        return;

                }

 

                if ( is_multisite() ) {

                        if ( current_user_can( 'install_themes' ) && current_user_can( 'manage_network_themes' ) ) {

                                printf( __( 'You only have one theme enabled for this site right now. Visit the Network Admin to <a href="%1$s">enable</a> or <a href="%2$s">install</a> more themes.' ), network_admin_url( 'site-themes.php?id=' . $GLOBALS['blog_id'] ), network_admin_url( 'theme-install.php' ) );

 

                                return;

                        } elseif ( current_user_can( 'manage_network_themes' ) ) {

                                printf( __( 'You only have one theme enabled for this site right now. Visit the Network Admin to <a href="%1$s">enable</a> more themes.' ), network_admin_url( 'site-themes.php?id=' . $GLOBALS['blog_id'] ) );

 

                                return;

                        }

                        // Else, fallthrough. install_themes doesn't help if you can't enable it.

                } else {

                        if ( current_user_can( 'install_themes' ) ) {

                                printf( __( 'You only have one theme installed right now. Live a little! You can choose from over 1,000 free themes in the WordPress.org Theme Directory at any time: just click on the <a href="%s">Install Themes</a> tab above.' ), admin_url( 'theme-install.php' ) );

 

                                return;

                        }

                }

                // Fallthrough.

                printf( __( 'Only the current theme is available to you. Contact the %s administrator for information about accessing additional themes.' ), get_site_option( 'site_name' ) );

        }

 

        public function tablenav( $which = 'top' ) {

                if ( $this->get_pagination_arg( 'total_pages' ) <= 1 )

                        return;

                ?>

                <div class="tablenav themes <?php echo $which; ?>">

                        <?php $this->pagination( $which ); ?>

                        <span class="spinner"></span>

                        <br class="clear" />

                </div>

                <?php

        }

 

        public function display() {

                wp_nonce_field( "fetch-list-" . get_class( $this ), '_ajax_fetch_list_nonce' );

?>

                <?php $this->tablenav( 'top' ); ?>

 

                <div id="availablethemes">

                        <?php $this->display_rows_or_placeholder(); ?>

                </div>

 

                <?php $this->tablenav( 'bottom' ); ?>

<?php

        }

 

        public function get_columns() {

                return array();

        }

 

        public function display_rows_or_placeholder() {

                if ( $this->has_items() ) {

                        $this->display_rows();

                } else {

                        echo '<div class="no-items">';

                        $this->no_items();

                        echo '</div>';

                }

        }

 

        public function display_rows() {

                $themes = $this->items;

 

                foreach ( $themes as $theme ):

                        ?><div class="available-theme"><?php

 

                        $template   = $theme->get_template();

                        $stylesheet = $theme->get_stylesheet();

                        $title      = $theme->display('Name');

                        $version    = $theme->display('Version');

                        $author     = $theme->display('Author');

 

                        $activate_link = wp_nonce_url( "themes.php?action=activate&amp;template=" . urlencode( $template ) . "&amp;stylesheet=" . urlencode( $stylesheet ), 'switch-theme_' . $stylesheet );

 

                        $preview_link = esc_url( add_query_arg(

                                array( 'preview' => 1, 'template' => urlencode( $template ), 'stylesheet' => urlencode( $stylesheet ), 'preview_iframe' => true, 'TB_iframe' => 'true' ),

                                home_url( '/' ) ) );

 

                        $actions = array();

                        $actions['activate'] = '<a href="' . $activate_link . '" class="activatelink" title="'

                                . esc_attr( sprintf( __( 'Activate &#8220;%s&#8221;' ), $title ) ) . '">' . __( 'Activate' ) . '</a>';

 

                        $actions['preview'] = '<a href="' . $preview_link . '" class="hide-if-customize" title="'

                                . esc_attr( sprintf( __( 'Preview &#8220;%s&#8221;' ), $title ) ) . '">' . __( 'Preview' ) . '</a>';

 

                        if ( current_user_can( 'edit_theme_options' ) && current_user_can( 'customize' ) ) {

                                $actions['preview'] .= '<a href="' . wp_customize_url( $stylesheet ) . '" class="load-customize hide-if-no-customize">'

                                        . __( 'Live Preview' ) . '</a>';

                        }

 

                        if ( ! is_multisite() && current_user_can( 'delete_themes' ) )

                                $actions['delete'] = '<a class="submitdelete deletion" href="' . wp_nonce_url( 'themes.php?action=delete&amp;stylesheet=' . urlencode( $stylesheet ), 'delete-theme_' . $stylesheet )

                                        . '" onclick="' . "return confirm( '" . esc_js( sprintf( __( "You are about to delete this theme '%s'\n  'Cancel' to stop, 'OK' to delete." ), $title ) )

                                        . "' );" . '">' . __( 'Delete' ) . '</a>';

 

                        /** This filter is documented in wp-admin/includes/class-wp-ms-themes-list-table.php */

                        $actions       = apply_filters( 'theme_action_links', $actions, $theme );

 

                        /** This filter is documented in wp-admin/includes/class-wp-ms-themes-list-table.php */

                        $actions       = apply_filters( "theme_action_links_$stylesheet", $actions, $theme );

                        $delete_action = isset( $actions['delete'] ) ? '<div class="delete-theme">' . $actions['delete'] . '</div>' : '';

                        unset( $actions['delete'] );

 

                        ?>

 

                        <a href="<?php echo $preview_link; ?>" class="screenshot hide-if-customize">

                                <?php if ( $screenshot = $theme->get_screenshot() ) : ?>

                                        <img src="<?php echo esc_url( $screenshot ); ?>" alt="" />

                                <?php endif; ?>

                        </a>

                        <a href="<?php echo wp_customize_url( $stylesheet ); ?>" class="screenshot load-customize hide-if-no-customize">

                                <?php if ( $screenshot = $theme->get_screenshot() ) : ?>

                                        <img src="<?php echo esc_url( $screenshot ); ?>" alt="" />

                                <?php endif; ?>

                        </a>

 

                        <h3><?php echo $title; ?></h3>

                        <div class="theme-author"><?php printf( __( 'By %s' ), $author ); ?></div>

                        <div class="action-links">

                                <ul>

                                        <?php foreach ( $actions as $action ): ?>

                                                <li><?php echo $action; ?></li>

                                        <?php endforeach; ?>

                                        <li class="hide-if-no-js"><a href="#" class="theme-detail"><?php _e('Details') ?></a></li>

                                </ul>

                                <?php echo $delete_action; ?>

 

                                <?php theme_update_available( $theme ); ?>

                        </div>

 

                        <div class="themedetaildiv hide-if-js">

                                <p><strong><?php _e('Version: '); ?></strong><?php echo $version; ?></p>

                                <p><?php echo $theme->display('Description'); ?></p>

                                <?php if ( $theme->parent() ) {

                                        printf( ' <p class="howto">' . __( 'This <a href="%1$s">child theme</a> requires its parent theme, %2$s.' ) . '</p>',

                                                __( 'http://codex.wordpress.org/Child_Themes' ),

                                                $theme->parent()->display( 'Name' ) );

                                } ?>

                        </div>

 

                        </div>

                <?php

                endforeach;

        }

 

        public function search_theme( $theme ) {

                // Search the features

                foreach ( $this->features as $word ) {

                        if ( ! in_array( $word, $theme->get('Tags') ) )

                                return false;

                }

 

                // Match all phrases

                foreach ( $this->search_terms as $word ) {

                        if ( in_array( $word, $theme->get('Tags') ) )

                                continue;

 

                        foreach ( array( 'Name', 'Description', 'Author', 'AuthorURI' ) as $header ) {

                                // Don't mark up; Do translate.

                                if ( false !== stripos( strip_tags( $theme->display( $header, false, true ) ), $word ) ) {

                                        continue 2;

                                }

                        }

 

                        if ( false !== stripos( $theme->get_stylesheet(), $word ) )

                                continue;

 

                        if ( false !== stripos( $theme->get_template(), $word ) )

                                continue;

 

                        return false;

                }

 

                return true;

        }

 

        /**

         * Send required variables to JavaScript land

         *

         * @since 3.4.0

         * @access public

         *

         * @uses $this->features Array of all feature search terms.

         * @uses get_pagenum()

         * @uses _pagination_args['total_pages']

         */

        public function _js_vars( $extra_args = array() ) {

                $search_string = isset( $_REQUEST['s'] ) ? esc_attr( wp_unslash( $_REQUEST['s'] ) ) : '';

 

                $args = array(

                        'search' => $search_string,

                        'features' => $this->features,

                        'paged' => $this->get_pagenum(),

                        'total_pages' => ! empty( $this->_pagination_args['total_pages'] ) ? $this->_pagination_args['total_pages'] : 1,

                );

 

                if ( is_array( $extra_args ) )

                        $args = array_merge( $args, $extra_args );

 

                printf( "<script type='text/javascript'>var theme_list_args = %s;</script>\n", json_encode( $args ) );

                parent::_js_vars();

        }

}