Ticket #25758: 25758.2.diff

src/wp-content/themes/twentyfourteen/functions.php

@@ -69 +69 @@
 
         // Add several sizes for Post Thumbnails.
         add_image_size( 'post-thumbnail-slider', 1038, 576, true );
+        add_image_size( 'post-thumbnail-full-width', 1038, 0 );
         add_image_size( 'post-thumbnail-grid', 672, 372, true );
         add_image_size( 'post-thumbnail', 672, 0 );
 

src/wp-content/themes/twentyfourteen/inc/template-tags.php

@@ -172 +172 @@
         ?>
 
         <div class="post-thumbnail">
-                <?php the_post_thumbnail( 'post-thumbnail' ); ?>
+                <?php
+                        if ( is_active_sidebar( 'sidebar-2' ) || wp_is_mobile() )
+                                the_post_thumbnail( 'post-thumbnail' );
+                        else
+                                the_post_thumbnail( 'post-thumbnail-full-width' );
+                ?>
         </div>
 
         <?php else : ?>
 
         <a class="post-thumbnail" href="<?php the_permalink(); ?>" rel="<?php the_ID(); ?>">
-        <?php if ( has_post_thumbnail() ) :
+        <?php if ( has_post_thumbnail() && ( is_active_sidebar( 'sidebar-2' ) || wp_is_mobile() ) ) :
                 the_post_thumbnail( 'post-thumbnail' );
+        elseif ( has_post_thumbnail() ) :
+                the_post_thumbnail( 'post-thumbnail-full-width' );
         else : ?>
                 <p class="screen-reader-text"><?php _e( 'No featured image.', 'twentyfourteen' ); ?></p>
         <?php endif; ?>