Twenty Sixteen: Update theme’s wide image styles to include Image Blocks

Twenty Sixteen includes functionality and styles that make full-size images extend wider than the content when they are added to posts, and appear below the post meta. This update adds the same behavior to image blocks and their captions.

Merges [43911] to trunk.

Props laurelfulford.
Fixes: #45380.

git-svn-id: https://develop.svn.wordpress.org/trunk@44263 602fd350-edb4-49c9-b593-d223f7449a82

src/wp-content/themes/twentysixteen/css/blocks.css

@@ -25,6 +25,11 @@ Description: Used to style Gutenberg Blocks.
 	font-style: italic;
 	line-height: 1.6153846154;
 	padding-top: 0.5384615385em;
+	text-align: left;
+}
+
+.rtl [class^="wp-block-"] figcaption {
+	text-align: right;
 }
 
 /*--------------------------------------------------------------
@@ -37,6 +42,24 @@ p.has-drop-cap:not(:focus)::first-letter {
 	font-size: 5em;
 }
 
+/* Image */
+
+@media screen and (min-width: 61.5625em) {
+	body:not(.search-results) article:not(.type-page) .wp-block-image figcaption.below-entry-meta {
+		clear: both;
+		display: block;
+		float: none;
+		margin-right: 0;
+		margin-left: -40%;
+		max-width: 140%;
+	}
+
+	body.rtl:not(.search-results) article:not(.type-page) .wp-block-image figcaption.below-entry-meta {
+		margin-left: 0;
+		margin-right: -40%;
+	}
+}
+
 /* Gallery */
 
 .wp-block-gallery {

src/wp-content/themes/twentysixteen/css/editor-blocks.css

@@ -262,6 +262,11 @@ Description: Used to style Gutenberg Blocks in the editor.
 	font-style: italic;
 	line-height: 1.6153846154;
 	padding-top: 0.5384615385em;
+	text-align: left;
+}
+
+.rtl [class^="wp-block-"] figcaption {
+	text-align: right;
 }
 
 /*--------------------------------------------------------------

src/wp-content/themes/twentysixteen/js/functions.js

@@ -148,26 +148,37 @@
 				entryFooterPos       = entryFooter.offset(),
 				entryFooterPosBottom = entryFooterPos.top + ( entryFooter.height() + 28 ),
 				caption              = element.closest( 'figure' ),
+				figcaption           = element.next( 'figcaption' ),
 				newImg;
 
 			// Add 'below-entry-meta' to elements below the entry meta.
 			if ( elementPosTop > entryFooterPosBottom ) {
 
 				// Check if full-size images and captions are larger than or equal to 840px.
-				if ( 'img.size-full' === param ) {
+				if ( 'img.size-full' === param || '.wp-block-image img' === param ) {
 
 					// Create an image to find native image width of resized images (i.e. max-width: 100%).
 					newImg = new Image();
 					newImg.src = element.attr( 'src' );
 
 					$( newImg ).on( 'load.twentysixteen', function() {
-						if ( newImg.width >= 840  ) {
+						if ( newImg.width >= 840 ) {
+
+							// Check if an image in an image block has a width attribute; if its value is less than 840, return.
+							if ( '.wp-block-image img' === param && element.is( '[width]' ) && element.attr( 'width' ) < 840 ) {
+								return;
+							}
+
 							element.addClass( 'below-entry-meta' );
 
 							if ( caption.hasClass( 'wp-caption' ) ) {
 								caption.addClass( 'below-entry-meta' );
 								caption.removeAttr( 'style' );
 							}
+
+							if ( figcaption ) {
+								figcaption.addClass( 'below-entry-meta' );
+							}
 						}
 					} );
 				} else {
@@ -190,11 +201,13 @@
 				resizeTimer = setTimeout( function() {
 					belowEntryMetaClass( 'img.size-full' );
 					belowEntryMetaClass( 'blockquote.alignleft, blockquote.alignright' );
+					belowEntryMetaClass( '.wp-block-image img' );
 				}, 300 );
 				onResizeARIA();
 			} );
 
 		belowEntryMetaClass( 'img.size-full' );
 		belowEntryMetaClass( 'blockquote.alignleft, blockquote.alignright' );
+		belowEntryMetaClass( '.wp-block-image img' );
 	} );
 } )( jQuery );