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         public $features = array();
  14
  15         /**
  16          * Constructor.
  17          *
  18          * @since 3.1.0
  19          * @access public
  20          *
  21          * @see WP_List_Table::__construct() for more information on default arguments.
  22          *
  23          * @param array $args An associative array of arguments.
  24          */
  25         public function __construct( $args = array() ) {
  26                 parent::__construct( array(
  27                         'ajax' => true,
  28                         'screen' => isset( $args['screen'] ) ? $args['screen'] : null,
  29                 ) );
  30         }
  31
  32         public function ajax_user_can() {
  33                 // Do not check edit_theme_options here. AJAX calls for available themes require switch_themes.
  34                 return current_user_can( 'switch_themes' );
  35         }
  36
  37         public function prepare_items() {
  38                 $themes = wp_get_themes( array( 'allowed' => true ) );
  39
  40                 if ( ! empty( $_REQUEST['s'] ) )
  41                         $this->search_terms = array_unique( array_filter( array_map( 'trim', explode( ',', strtolower( wp_unslash( $_REQUEST['s'] ) ) ) ) ) );
  42
  43                 if ( ! empty( $_REQUEST['features'] ) )
  44                         $this->features = $_REQUEST['features'];
  45
  46                 if ( $this->search_terms || $this->features ) {
  47                         foreach ( $themes as $key => $theme ) {
  48                                 if ( ! $this->search_theme( $theme ) )
  49                                         unset( $themes[ $key ] );
  50                         }
  51                 }
  52
  53                 unset( $themes[ get_option( 'stylesheet' ) ] );
  54                 WP_Theme::sort_by_name( $themes );
  55
  56                 $per_page = 36;
  57                 $page = $this->get_pagenum();
  58
  59                 $start = ( $page - 1 ) * $per_page;
  60
  61                 $this->items = array_slice( $themes, $start, $per_page, true );
  62
  63                 $this->set_pagination_args( array(
  64                         'total_items' => count( $themes ),
  65                         'per_page' => $per_page,
  66                         'infinite_scroll' => true,
  67                 ) );
  68         }
  69
  70         public function no_items() {
  71                 if ( $this->search_terms || $this->features ) {
  72                         _e( 'No items found.' );
  73                         return;
  74                 }
  75
  76                 if ( is_multisite() ) {
  77                         if ( current_user_can( 'install_themes' ) && current_user_can( 'manage_network_themes' ) ) {
  78                                 printf( __( 'You only have one theme enabled for this site right now. Visit the Network Admin to <a href="%1$s">enable</a> or <a href="%2$s">install</a> more themes.' ), network_admin_url( 'site-themes.php?id=' . $GLOBALS['blog_id'] ), network_admin_url( 'theme-install.php' ) );
  79
  80                                 return;
  81                         } elseif ( current_user_can( 'manage_network_themes' ) ) {
  82                                 printf( __( 'You only have one theme enabled for this site right now. Visit the Network Admin to <a href="%1$s">enable</a> more themes.' ), network_admin_url( 'site-themes.php?id=' . $GLOBALS['blog_id'] ) );
  83
  84                                 return;
  85                         }
  86                         // Else, fallthrough. install_themes doesn't help if you can't enable it.
  87                 } else {
  88                         if ( current_user_can( 'install_themes' ) ) {
  89                                 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' ) );
  90
  91                                 return;
  92                         }
  93                 }
  94                 // Fallthrough.
  95                 printf( __( 'Only the current theme is available to you. Contact the %s administrator for information about accessing additional themes.' ), get_site_option( 'site_name' ) );
  96         }
  97
  98         public function tablenav( $which = 'top' ) {
  99                 if ( $this->get_pagination_arg( 'total_pages' ) <= 1 )
 100                         return;
 101                 ?>
 102                 <div class="tablenav themes <?php echo $which; ?>">
 103                         <?php $this->pagination( $which ); ?>
 104                         <span class="spinner"></span>
 105                         <br class="clear" />
 106                 </div>
 107                 <?php
 108         }
 109
 110         public function display() {
 111                 wp_nonce_field( "fetch-list-" . get_class( $this ), '_ajax_fetch_list_nonce' );
 112 ?>
 113                 <?php $this->tablenav( 'top' ); ?>
 114
 115                 <div id="availablethemes">
 116                         <?php $this->display_rows_or_placeholder(); ?>
 117                 </div>
 118
 119                 <?php $this->tablenav( 'bottom' ); ?>
 120 <?php
 121         }
 122
 123         public function get_columns() {
 124                 return array();
 125         }
 126
 127         public function display_rows_or_placeholder() {
 128                 if ( $this->has_items() ) {
 129                         $this->display_rows();
 130                 } else {
 131                         echo '<div class="no-items">';
 132                         $this->no_items();
 133                         echo '</div>';
 134                 }
 135         }
 136
 137         public function display_rows() {
 138                 $themes = $this->items;
 139
 140                 foreach ( $themes as $theme ):
 141                         ?><div class="available-theme"><?php
 142
 143                         $template   = $theme->get_template();
 144                         $stylesheet = $theme->get_stylesheet();
 145                         $title      = $theme->display('Name');
 146                         $version    = $theme->display('Version');
 147                         $author     = $theme->display('Author');
 148
 149                         $activate_link = wp_nonce_url( "themes.php?action=activate&amp;template=" . urlencode( $template ) . "&amp;stylesheet=" . urlencode( $stylesheet ), 'switch-theme_' . $stylesheet );
 150
 151                         $preview_link = esc_url( add_query_arg(
 152                                 array( 'preview' => 1, 'template' => urlencode( $template ), 'stylesheet' => urlencode( $stylesheet ), 'preview_iframe' => true, 'TB_iframe' => 'true' ),
 153                                 home_url( '/' ) ) );
 154
 155                         $actions = array();
 156                         $actions['activate'] = '<a href="' . $activate_link . '" class="activatelink" title="'
 157                                 . esc_attr( sprintf( __( 'Activate &#8220;%s&#8221;' ), $title ) ) . '">' . __( 'Activate' ) . '</a>';
 158
 159                         $actions['preview'] = '<a href="' . $preview_link . '" class="hide-if-customize" title="'
 160                                 . esc_attr( sprintf( __( 'Preview &#8220;%s&#8221;' ), $title ) ) . '">' . __( 'Preview' ) . '</a>';
 161
 162                         if ( current_user_can( 'edit_theme_options' ) && current_user_can( 'customize' ) ) {
 163                                 $actions['preview'] .= '<a href="' . wp_customize_url( $stylesheet ) . '" class="load-customize hide-if-no-customize">'
 164                                         . __( 'Live Preview' ) . '</a>';
 165                         }
 166
 167                         if ( ! is_multisite() && current_user_can( 'delete_themes' ) )
 168                                 $actions['delete'] = '<a class="submitdelete deletion" href="' . wp_nonce_url( 'themes.php?action=delete&amp;stylesheet=' . urlencode( $stylesheet ), 'delete-theme_' . $stylesheet )
 169                                         . '" onclick="' . "return confirm( '" . esc_js( sprintf( __( "You are about to delete this theme '%s'\n  'Cancel' to stop, 'OK' to delete." ), $title ) )
 170                                         . "' );" . '">' . __( 'Delete' ) . '</a>';
 171
 172                         /** This filter is documented in wp-admin/includes/class-wp-ms-themes-list-table.php */
 173                         $actions       = apply_filters( 'theme_action_links', $actions, $theme );
 174
 175                         /** This filter is documented in wp-admin/includes/class-wp-ms-themes-list-table.php */
 176                         $actions       = apply_filters( "theme_action_links_$stylesheet", $actions, $theme );
 177                         $delete_action = isset( $actions['delete'] ) ? '<div class="delete-theme">' . $actions['delete'] . '</div>' : '';
 178                         unset( $actions['delete'] );
 179
 180                         ?>
 181
 182                         <a href="<?php echo $preview_link; ?>" class="screenshot hide-if-customize">
 183                                 <?php if ( $screenshot = $theme->get_screenshot() ) : ?>
 184                                         <img src="<?php echo esc_url( $screenshot ); ?>" alt="" />
 185                                 <?php endif; ?>
 186                         </a>
 187                         <a href="<?php echo wp_customize_url( $stylesheet ); ?>" class="screenshot load-customize hide-if-no-customize">
 188                                 <?php if ( $screenshot = $theme->get_screenshot() ) : ?>
 189                                         <img src="<?php echo esc_url( $screenshot ); ?>" alt="" />
 190                                 <?php endif; ?>
 191                         </a>
 192
 193                         <h3><?php echo $title; ?></h3>
 194                         <div class="theme-author"><?php printf( __( 'By %s' ), $author ); ?></div>
 195                         <div class="action-links">
 196                                 <ul>
 197                                         <?php foreach ( $actions as $action ): ?>
 198                                                 <li><?php echo $action; ?></li>
 199                                         <?php endforeach; ?>
 200                                         <li class="hide-if-no-js"><a href="#" class="theme-detail"><?php _e('Details') ?></a></li>
 201                                 </ul>
 202                                 <?php echo $delete_action; ?>
 203
 204                                 <?php theme_update_available( $theme ); ?>
 205                         </div>
 206
 207                         <div class="themedetaildiv hide-if-js">
 208                                 <p><strong><?php _e('Version: '); ?></strong><?php echo $version; ?></p>
 209                                 <p><?php echo $theme->display('Description'); ?></p>
 210                                 <?php if ( $theme->parent() ) {
 211                                         printf( ' <p class="howto">' . __( 'This <a href="%1$s">child theme</a> requires its parent theme, %2$s.' ) . '</p>',
 212                                                 __( 'http://codex.wordpress.org/Child_Themes' ),
 213                                                 $theme->parent()->display( 'Name' ) );
 214                                 } ?>
 215                         </div>
 216
 217                         </div>
 218                 <?php
 219                 endforeach;
 220         }
 221
 222         public function search_theme( $theme ) {
 223                 // Search the features
 224                 foreach ( $this->features as $word ) {
 225                         if ( ! in_array( $word, $theme->get('Tags') ) )
 226                                 return false;
 227                 }
 228
 229                 // Match all phrases
 230                 foreach ( $this->search_terms as $word ) {
 231                         if ( in_array( $word, $theme->get('Tags') ) )
 232                                 continue;
 233
 234                         foreach ( array( 'Name', 'Description', 'Author', 'AuthorURI' ) as $header ) {
 235                                 // Don't mark up; Do translate.
 236                                 if ( false !== stripos( strip_tags( $theme->display( $header, false, true ) ), $word ) ) {
 237                                         continue 2;
 238                                 }
 239                         }
 240
 241                         if ( false !== stripos( $theme->get_stylesheet(), $word ) )
 242                                 continue;
 243
 244                         if ( false !== stripos( $theme->get_template(), $word ) )
 245                                 continue;
 246
 247                         return false;
 248                 }
 249
 250                 return true;
 251         }
 252
 253         /**
 254          * Send required variables to JavaScript land
 255          *
 256          * @since 3.4.0
 257          * @access public
 258          *
 259          * @uses $this->features Array of all feature search terms.
 260          * @uses get_pagenum()
 261          * @uses _pagination_args['total_pages']
 262          */
 263         public function _js_vars( $extra_args = array() ) {
 264                 $search_string = isset( $_REQUEST['s'] ) ? esc_attr( wp_unslash( $_REQUEST['s'] ) ) : '';
 265
 266                 $args = array(
 267                         'search' => $search_string,
 268                         'features' => $this->features,
 269                         'paged' => $this->get_pagenum(),
 270                         'total_pages' => ! empty( $this->_pagination_args['total_pages'] ) ? $this->_pagination_args['total_pages'] : 1,
 271                 );
 272
 273                 if ( is_array( $extra_args ) )
 274                         $args = array_merge( $args, $extra_args );
 275
 276                 printf( "<script type='text/javascript'>var theme_list_args = %s;</script>\n", json_encode( $args ) );
 277                 parent::_js_vars();
 278         }
 279 }