Merge pull request #7391 from ckeditor/i/7360

Other (table): Marker on table cells should be downcasted to CSS classes on cells (instead of wrapping the content). Closes #7360.

Tests (engine): Added the Table feature to the "Highlight" manual test (see #7360).

packages/ckeditor5-engine/tests/manual/highlight.html

@@ -1,37 +1,61 @@
 <style>
+	:root {
+		--ck-manual-test-highlight-yellow: hsla(60, 100%, 50%, 0.5);
+		--ck-manual-test-highlight-red: hsla(0, 100%, 50%, 0.5);
+		--ck-manual-test-highlight-blue: hsla(240, 100%, 50%, 0.5);
+	}
+
 	span.highlight-yellow {
-		background-color: rgba( 255, 255, 0, 0.5 );
+		background-color: var(--ck-manual-test-highlight-yellow);
 	}
 
 	span.highlight-blue {
-		background-color: rgba( 0, 0, 255, 0.5 );
+		background-color: var(--ck-manual-test-highlight-blue);
 	}
 
 	span.highlight-red {
-		background-color: rgba( 255, 0, 0, 0.5 );
+		background-color: var(--ck-manual-test-highlight-red);
 	}
 
 	.ck-widget.fancy-widget {
-		background-color: black;
-		color: white;
+		background-color: hsl(0, 0%, 0%);
+		color: hsl(0, 0%, 100%);
 		text-align: center;
 		height: 40px;
 		line-height: 40px;
 	}
 
 	.ck-widget.fancy-widget.highlight-yellow {
-		background-color: yellow;
-		color: black;
+		background-color: var(--ck-manual-test-highlight-yellow);
+		color: hsl(0, 0%, 0%);
 	}
 
 	.ck-widget.fancy-widget.highlight-blue {
-		background-color: blue;
-		color: black;
+		background-color: var(--ck-manual-test-highlight-blue);
+		color: hsl(0, 0%, 0%);
 	}
 
 	.ck-widget.fancy-widget.highlight-red {
-		background-color: red;
-		color: black;
+		background-color: var(--ck-manual-test-highlight-red);
+		color: hsl(0, 0%, 0%);
+	}
+
+	.table td.highlight-yellow,
+	.table th.highlight-yellow {
+		/* !important to override selected editable styles. */
+		background-color: var(--ck-manual-test-highlight-yellow) !important;
+	}
+
+	.table td.highlight-blue,
+	.table th.highlight-blue {
+		/* !important to override selected editable styles. */
+		background-color: var(--ck-manual-test-highlight-blue) !important;
+	}
+
+	.table td.highlight-red,
+	.table th.highlight-red {
+		/* !important to override selected editable styles. */
+		background-color: var(--ck-manual-test-highlight-red) !important;
 	}
 
 	button {
@@ -43,6 +67,16 @@
 	<p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Maecenas at diam quis justo imperdiet posuere non eu tortor. Mauris vel magna eu sem hendrerit varius. Ut imperdiet velit ut ante interdum convallis. Vestibulum vitae lacinia mi. </p>
 	<figure></figure>
 	<p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Maecenas at diam quis justo imperdiet posuere non eu tortor. Mauris vel magna eu sem hendrerit varius. Ut imperdiet velit ut ante interdum convallis. Vestibulum vitae lacinia mi. </p>
+	<table>
+		<tr>
+			<td>foo</td>
+			<td>bar</td>
+		</tr>
+		<tr>
+			<td>baz</td>
+			<td>qux</td>
+		</tr>
+	</table>
 </div>
 <h2>Markers</h2>
 <button id="add-marker-yellow">Set yellow highlight</button><button id="remove-marker-yellow">Remove yellow highlight</button>

packages/ckeditor5-engine/tests/manual/highlight.js

@@ -16,6 +16,7 @@ import Italic from '@ckeditor/ckeditor5-basic-styles/src/italic';
 import List from '@ckeditor/ckeditor5-list/src/list';
 import global from '@ckeditor/ckeditor5-utils/src/dom/global';
 import Plugin from '@ckeditor/ckeditor5-core/src/plugin';
+import Table from '@ckeditor/ckeditor5-table/src/table';
 import Widget from '@ckeditor/ckeditor5-widget/src/widget';
 import { toWidget } from '@ckeditor/ckeditor5-widget/src/utils';
 
@@ -53,8 +54,8 @@ class FancyWidget extends Plugin {
 }
 
 ClassicEditor.create( global.document.querySelector( '#editor' ), {
-	plugins: [ Enter, Typing, Paragraph, Undo, Heading, Bold, Italic, List, FancyWidget ],
-	toolbar: [ 'heading', '|', 'undo', 'redo', 'bold', 'italic', 'numberedList', 'bulletedList' ]
+	plugins: [ Enter, Typing, Paragraph, Undo, Heading, Bold, Italic, List, Table, FancyWidget ],
+	toolbar: [ 'heading', '|', 'undo', 'redo', 'bold', 'italic', 'numberedList', 'bulletedList', 'insertTable' ]
 } )
 	.then( editor => {
 		window.editor = editor;

packages/ckeditor5-engine/tests/manual/highlight.md

@@ -10,5 +10,10 @@ applied.
 1. Red highlight should be visible on the whole content, including the widget.
 1. Play with highlights, add and remove them, check if they are applied correctly.
 
-NOTE: Yellow highlight should be visible over red and blue one. Red highlight should be visible over blue one. 
+### Highlighting table cells
+
+1. You can select the entire table cell and apply a highlight to it.
+1. The highlight should change the background of an **entire cell** (not only its content).
+
+NOTE: Yellow highlight should be visible over red and blue one. Red highlight should be visible over blue one.
 

packages/ckeditor5-table/src/converters/downcast.js

@@ -8,7 +8,7 @@
  */
 
 import TableWalker from './../tablewalker';
-import { toWidget, toWidgetEditable } from '@ckeditor/ckeditor5-widget/src/utils';
+import { toWidget, toWidgetEditable, setHighlightHandling } from '@ckeditor/ckeditor5-widget/src/utils';
 
 /**
  * Model table element to view table element conversion helper.
@@ -343,6 +343,13 @@ function renameViewTableCell( tableCell, desiredCellElementName, conversionApi,
 		const editable = viewWriter.createEditableElement( desiredCellElementName, viewCell.getAttributes() );
 		renamedCell = toWidgetEditable( editable, viewWriter );
 
+		setHighlightHandling(
+			renamedCell,
+			viewWriter,
+			( element, descriptor, writer ) => writer.addClass( normalizeToArray( descriptor.classes ), element ),
+			( element, descriptor, writer ) => writer.removeClass( normalizeToArray( descriptor.classes ), element )
+		);
+
 		viewWriter.insert( viewWriter.createPositionAfter( viewCell ), renamedCell );
 		viewWriter.move( viewWriter.createRangeIn( viewCell ), viewWriter.createPositionAt( renamedCell, 0 ) );
 		viewWriter.remove( viewWriter.createRangeOn( viewCell ) );
@@ -354,6 +361,10 @@ function renameViewTableCell( tableCell, desiredCellElementName, conversionApi,
 	conversionApi.mapper.bindElements( tableCell, renamedCell );
 }
 
+function normalizeToArray( classes ) {
+	return Array.isArray( classes ) ? classes : [ classes ];
+}
+
 // Renames a table cell element in the view according to its location in the table.
 //
 // @param {module:table/tablewalker~TableSlot} tableSlot
@@ -388,6 +399,15 @@ function createViewTableCellElement( tableSlot, tableAttributes, insertPosition,
 		toWidgetEditable( conversionApi.writer.createEditableElement( cellElementName ), conversionApi.writer ) :
 		conversionApi.writer.createContainerElement( cellElementName );
 
+	if ( asWidget ) {
+		setHighlightHandling(
+			cellElement,
+			conversionApi.writer,
+			( element, descriptor, writer ) => writer.addClass( normalizeToArray( descriptor.classes ), element ),
+			( element, descriptor, writer ) => writer.removeClass( normalizeToArray( descriptor.classes ), element )
+		);
+	}
+
 	const tableCell = tableSlot.cell;
 
 	const firstChild = tableCell.getChild( 0 );