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   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              $actions       = apply_filters( 'theme_action_links', $actions, $theme );
 162              $actions       = apply_filters( "theme_action_links_$stylesheet", $actions, $theme );
 163              $delete_action = isset( $actions['delete'] ) ? '<div class="delete-theme">' . $actions['delete'] . '</div>' : '';
 164              unset( $actions['delete'] );
 165  
 166              ?>
 167  
 168              <a href="<?php echo $preview_link; ?>" class="screenshot hide-if-customize">
 169                  <?php if ( $screenshot = $theme->get_screenshot() ) : ?>
 170                      <img src="<?php echo esc_url( $screenshot ); ?>" alt="" />
 171                  <?php endif; ?>
 172              </a>
 173              <a href="<?php echo wp_customize_url( $stylesheet ); ?>" class="screenshot load-customize hide-if-no-customize">
 174                  <?php if ( $screenshot = $theme->get_screenshot() ) : ?>
 175                      <img src="<?php echo esc_url( $screenshot ); ?>" alt="" />
 176                  <?php endif; ?>
 177              </a>
 178  
 179              <h3><?php echo $title; ?></h3>
 180              <div class="theme-author"><?php printf( __( 'By %s' ), $author ); ?></div>
 181              <div class="action-links">
 182                  <ul>
 183                      <?php foreach ( $actions as $action ): ?>
 184                          <li><?php echo $action; ?></li>
 185                      <?php endforeach; ?>
 186                      <li class="hide-if-no-js"><a href="#" class="theme-detail"><?php _e('Details') ?></a></li>
 187                  </ul>
 188                  <?php echo $delete_action; ?>
 189  
 190                  <?php theme_update_available( $theme ); ?>
 191              </div>
 192  
 193              <div class="themedetaildiv hide-if-js">
 194                  <p><strong><?php _e('Version: '); ?></strong><?php echo $version; ?></p>
 195                  <p><?php echo $theme->display('Description'); ?></p>
 196                  <?php if ( $theme->parent() ) {
 197                      printf( ' <p class="howto">' . __( 'This <a href="%1$s">child theme</a> requires its parent theme, %2$s.' ) . '</p>',
 198                          __( 'http://codex.wordpress.org/Child_Themes' ),
 199                          $theme->parent()->display( 'Name' ) );
 200                  } ?>
 201              </div>
 202  
 203              </div>
 204          <?php
 205          endforeach;
 206      }
 207  
 208  	function search_theme( $theme ) {
 209          // Search the features
 210          foreach ( $this->features as $word ) {
 211              if ( ! in_array( $word, $theme->get('Tags') ) )
 212                  return false;
 213          }
 214  
 215          // Match all phrases
 216          foreach ( $this->search_terms as $word ) {
 217              if ( in_array( $word, $theme->get('Tags') ) )
 218                  continue;
 219  
 220              foreach ( array( 'Name', 'Description', 'Author', 'AuthorURI' ) as $header ) {
 221                  // Don't mark up; Do translate.
 222                  if ( false !== stripos( $theme->display( $header, false, true ), $word ) )
 223                      continue 2;
 224              }
 225  
 226              if ( false !== stripos( $theme->get_stylesheet(), $word ) )
 227                  continue;
 228  
 229              if ( false !== stripos( $theme->get_template(), $word ) )
 230                  continue;
 231  
 232              return false;
 233          }
 234  
 235          return true;
 236      }
 237  
 238      /**
 239       * Send required variables to JavaScript land
 240       *
 241       * @since 3.4
 242       * @access private
 243       *
 244       * @uses $this->features Array of all feature search terms.
 245       * @uses get_pagenum()
 246       * @uses _pagination_args['total_pages']
 247       */
 248  	 function _js_vars( $extra_args = array() ) {
 249          $search_string = isset( $_REQUEST['s'] ) ? esc_attr( wp_unslash( $_REQUEST['s'] ) ) : '';
 250  
 251          $args = array(
 252              'search' => $search_string,
 253              'features' => $this->features,
 254              'paged' => $this->get_pagenum(),
 255              'total_pages' => ! empty( $this->_pagination_args['total_pages'] ) ? $this->_pagination_args['total_pages'] : 1,
 256          );
 257  
 258          if ( is_array( $extra_args ) )
 259              $args = array_merge( $args, $extra_args );
 260  
 261          printf( "<script type='text/javascript'>var theme_list_args = %s;</script>\n", json_encode( $args ) );
 262          parent::_js_vars();
 263      }
 264  }