wp-admin/includes/class-wp-themes-list-table.php

   1 <?php
   2 /**
   3  * Themes List Table class.
   4  *
   5  * @package WordPress
   6  * @subpackage List_Table
   7  * @since 3.1.0
   8  * @access private
   9  */
  10 class WP_Themes_List_Table extends WP_List_Table {
  11
  12         protected $search_terms = array();
  13         var $features = array();
  14
  15         function __construct( $args = array() ) {
  16                 parent::__construct( array(
  17                         'ajax' => true,
  18                         'screen' => isset( $args['screen'] ) ? $args['screen'] : null,
  19                 ) );
  20         }
  21
  22         function ajax_user_can() {
  23                 // Do not check edit_theme_options here. AJAX calls for available themes require switch_themes.
  24                 return current_user_can( 'switch_themes' );
  25         }
  26
  27         function prepare_items() {
  28                 $themes = wp_get_themes( array( 'allowed' => true ) );
  29
  30                 if ( ! empty( $_REQUEST['s'] ) )
  31                         $this->search_terms = array_unique( array_filter( array_map( 'trim', explode( ',', strtolower( wp_unslash( $_REQUEST['s'] ) ) ) ) ) );
  32
  33                 if ( ! empty( $_REQUEST['features'] ) )
  34                         $this->features = $_REQUEST['features'];
  35
  36                 if ( $this->search_terms || $this->features ) {
  37                         foreach ( $themes as $key => $theme ) {
  38                                 if ( ! $this->search_theme( $theme ) )
  39                                         unset( $themes[ $key ] );
  40                         }
  41                 }
  42
  43                 unset( $themes[ get_option( 'stylesheet' ) ] );
  44                 WP_Theme::sort_by_name( $themes );
  45
  46                 $per_page = 36;
  47                 $page = $this->get_pagenum();
  48
  49                 $start = ( $page - 1 ) * $per_page;
  50
  51                 $this->items = array_slice( $themes, $start, $per_page, true );
  52
  53                 $this->set_pagination_args( array(
  54                         'total_items' => count( $themes ),
  55                         'per_page' => $per_page,
  56                         'infinite_scroll' => true,
  57                 ) );
  58         }
  59
  60         function no_items() {
  61                 if ( $this->search_terms || $this->features ) {
  62                         _e( 'No items found.' );
  63                         return;
  64                 }
  65
  66                 if ( is_multisite() ) {
  67                         if ( current_user_can( 'install_themes' ) && current_user_can( 'manage_network_themes' ) ) {
  68                                 printf( __( 'You only have one theme enabled for this site right now. Visit the Network Admin to <a href="%1$s">enable</a> or <a href="%2$s">install</a> more themes.' ), network_admin_url( 'site-themes.php?id=' . $GLOBALS['blog_id'] ), network_admin_url( 'theme-install.php' ) );
  69
  70                                 return;
  71                         } elseif ( current_user_can( 'manage_network_themes' ) ) {
  72                                 printf( __( 'You only have one theme enabled for this site right now. Visit the Network Admin to <a href="%1$s">enable</a> more themes.' ), network_admin_url( 'site-themes.php?id=' . $GLOBALS['blog_id'] ) );
  73
  74                                 return;
  75                         }
  76                         // else, fallthrough. install_themes doesn't help if you can't enable it.
  77                 } else {
  78                         if ( current_user_can( 'install_themes' ) ) {
  79                                 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' ) );
  80
  81                                 return;
  82                         }
  83                 }
  84                 // Fallthrough.
  85                 printf( __( 'Only the current theme is available to you. Contact the %s administrator for information about accessing additional themes.' ), get_site_option( 'site_name' ) );
  86         }
  87
  88         function tablenav( $which = 'top' ) {
  89                 if ( $this->get_pagination_arg( 'total_pages' ) <= 1 )
  90                         return;
  91                 ?>
  92                 <div class="tablenav themes <?php echo $which; ?>">
  93                         <?php $this->pagination( $which ); ?>
  94                         <span class="spinner"></span>
  95                         <br class="clear" />
  96                 </div>
  97                 <?php
  98         }
  99
 100         function display() {
 101                 wp_nonce_field( "fetch-list-" . get_class( $this ), '_ajax_fetch_list_nonce' );
 102 ?>
 103                 <?php $this->tablenav( 'top' ); ?>
 104
 105                 <div id="availablethemes">
 106                         <?php $this->display_rows_or_placeholder(); ?>
 107                 </div>
 108
 109                 <?php $this->tablenav( 'bottom' ); ?>
 110 <?php
 111         }
 112
 113         function get_columns() {
 114                 return array();
 115         }
 116
 117         function display_rows_or_placeholder() {
 118                 if ( $this->has_items() ) {
 119                         $this->display_rows();
 120                 } else {
 121                         echo '<div class="no-items">';
 122                         $this->no_items();
 123                         echo '</div>';
 124                 }
 125         }
 126
 127         function display_rows() {
 128                 $themes = $this->items;
 129
 130                 foreach ( $themes as $theme ):
 131                         ?><div class="available-theme"><?php
 132
 133                         $template   = $theme->get_template();
 134                         $stylesheet = $theme->get_stylesheet();
 135                         $title      = $theme->display('Name');
 136                         $version    = $theme->display('Version');
 137                         $author     = $theme->display('Author');
 138
 139                         $activate_link = wp_nonce_url( "themes.php?action=activate&amp;template=" . urlencode( $template ) . "&amp;stylesheet=" . urlencode( $stylesheet ), 'switch-theme_' . $stylesheet );
 140
 141                         $preview_link = esc_url( add_query_arg(
 142                                 array( 'preview' => 1, 'template' => urlencode( $template ), 'stylesheet' => urlencode( $stylesheet ), 'preview_iframe' => true, 'TB_iframe' => 'true' ),
 143                                 home_url( '/' ) ) );
 144
 145                         $actions = array();
 146                         $actions['activate'] = '<a href="' . $activate_link . '" class="activatelink" title="'
 147                                 . esc_attr( sprintf( __( 'Activate &#8220;%s&#8221;' ), $title ) ) . '">' . __( 'Activate' ) . '</a>';
 148
 149                         $actions['preview'] = '<a href="' . $preview_link . '" class="hide-if-customize" title="'
 150                                 . esc_attr( sprintf( __( 'Preview &#8220;%s&#8221;' ), $title ) ) . '">' . __( 'Preview' ) . '</a>';
 151
 152                         if ( current_user_can( 'edit_theme_options' ) )
 153                                 $actions['preview'] .= '<a href="' . wp_customize_url( $stylesheet ) . '" class="load-customize hide-if-no-customize">'
 154                                         . __( 'Live Preview' ) . '</a>';
 155
 156                         if ( ! is_multisite() && current_user_can( 'delete_themes' ) )
 157                                 $actions['delete'] = '<a class="submitdelete deletion" href="' . wp_nonce_url( 'themes.php?action=delete&amp;stylesheet=' . urlencode( $stylesheet ), 'delete-theme_' . $stylesheet )
 158                                         . '" onclick="' . "return confirm( '" . esc_js( sprintf( __( "You are about to delete this theme '%s'\n  'Cancel' to stop, 'OK' to delete." ), $title ) )
 159                                         . "' );" . '">' . __( 'Delete' ) . '</a>';
 160
 161                         /** This filter is documented in wp-admin/includes/class-wp-ms-themes-list-table.php */
 162                         $actions       = apply_filters( 'theme_action_links', $actions, $theme );
 163
 164                         /** This filter is documented in wp-admin/includes/class-wp-ms-themes-list-table.php */
 165                         $actions       = apply_filters( "theme_action_links_$stylesheet", $actions, $theme );
 166                         $delete_action = isset( $actions['delete'] ) ? '<div class="delete-theme">' . $actions['delete'] . '</div>' : '';
 167                         unset( $actions['delete'] );
 168
 169                         ?>
 170
 171                         <a href="<?php echo $preview_link; ?>" class="screenshot hide-if-customize">
 172                                 <?php if ( $screenshot = $theme->get_screenshot() ) : ?>
 173                                         <img src="<?php echo esc_url( $screenshot ); ?>" alt="" />
 174                                 <?php endif; ?>
 175                         </a>
 176                         <a href="<?php echo wp_customize_url( $stylesheet ); ?>" class="screenshot load-customize hide-if-no-customize">
 177                                 <?php if ( $screenshot = $theme->get_screenshot() ) : ?>
 178                                         <img src="<?php echo esc_url( $screenshot ); ?>" alt="" />
 179                                 <?php endif; ?>
 180                         </a>
 181
 182                         <h3><?php echo $title; ?></h3>
 183                         <div class="theme-author"><?php printf( __( 'By %s' ), $author ); ?></div>
 184                         <div class="action-links">
 185                                 <ul>
 186                                         <?php foreach ( $actions as $action ): ?>
 187                                                 <li><?php echo $action; ?></li>
 188                                         <?php endforeach; ?>
 189                                         <li class="hide-if-no-js"><a href="#" class="theme-detail"><?php _e('Details') ?></a></li>
 190                                 </ul>
 191                                 <?php echo $delete_action; ?>
 192
 193                                 <?php theme_update_available( $theme ); ?>
 194                         </div>
 195
 196                         <div class="themedetaildiv hide-if-js">
 197                                 <p><strong><?php _e('Version: '); ?></strong><?php echo $version; ?></p>
 198                                 <p><?php echo $theme->display('Description'); ?></p>
 199                                 <?php if ( $theme->parent() ) {
 200                                         printf( ' <p class="howto">' . __( 'This <a href="%1$s">child theme</a> requires its parent theme, %2$s.' ) . '</p>',
 201                                                 __( 'http://codex.wordpress.org/Child_Themes' ),
 202                                                 $theme->parent()->display( 'Name' ) );
 203                                 } ?>
 204                         </div>
 205
 206                         </div>
 207                 <?php
 208                 endforeach;
 209         }
 210
 211         function search_theme( $theme ) {
 212                 // Search the features
 213                 foreach ( $this->features as $word ) {
 214                         if ( ! in_array( $word, $theme->get('Tags') ) )
 215                                 return false;
 216                 }
 217
 218                 // Match all phrases
 219                 foreach ( $this->search_terms as $word ) {
 220                         if ( in_array( $word, $theme->get('Tags') ) )
 221                                 continue;
 222
 223                         foreach ( array( 'Name', 'Description', 'Author', 'AuthorURI' ) as $header ) {
 224                                 // Don't mark up; Do translate.
 225                                 if ( false !== stripos( strip_tags( $theme->display( $header, false, true ) ), $word ) ) {
 226                                         continue 2;
 227                                 }
 228                         }
 229
 230                         if ( false !== stripos( $theme->get_stylesheet(), $word ) )
 231                                 continue;
 232
 233                         if ( false !== stripos( $theme->get_template(), $word ) )
 234                                 continue;
 235
 236                         return false;
 237                 }
 238
 239                 return true;
 240         }
 241
 242         /**
 243          * Send required variables to JavaScript land
 244          *
 245          * @since 3.4.0
 246          * @access private
 247          *
 248          * @uses $this->features Array of all feature search terms.
 249          * @uses get_pagenum()
 250          * @uses _pagination_args['total_pages']
 251          */
 252          function _js_vars( $extra_args = array() ) {
 253                 $search_string = isset( $_REQUEST['s'] ) ? esc_attr( wp_unslash( $_REQUEST['s'] ) ) : '';
 254
 255                 $args = array(
 256                         'search' => $search_string,
 257                         'features' => $this->features,
 258                         'paged' => $this->get_pagenum(),
 259                         'total_pages' => ! empty( $this->_pagination_args['total_pages'] ) ? $this->_pagination_args['total_pages'] : 1,
 260                 );
 261
 262                 if ( is_array( $extra_args ) )
 263                         $args = array_merge( $args, $extra_args );
 264
 265                 printf( "<script type='text/javascript'>var theme_list_args = %s;</script>\n", json_encode( $args ) );
 266                 parent::_js_vars();
 267         }
 268 }