Minor refactoring.

src/view/renderer.js

@@ -756,29 +756,9 @@ export default class Renderer {
 		domSelection.collapse( anchor.parent, anchor.offset );
 		domSelection.extend( focus.parent, focus.offset );
 
-		// The following is a Firefox–specific hack (https://github.com/ckeditor/ckeditor5-engine/issues/1439).
-		// When the native DOM selection is at the end of the block and preceded by <br /> e.g.
-		//
-		//		<p>foo<br/>[]</p>
-		//
-		// which happens a lot when using the soft line break, the browser fails to (visually) move the
-		// caret to the new line. A quick fix is as simple as force–refreshing the selection with the same range.
+		// Firefox–specific hack (https://github.com/ckeditor/ckeditor5-engine/issues/1439).
 		if ( env.isGecko ) {
-			const parent = focus.parent;
-
-			// This fix works only when the focus point is at the very end of an element.
-			// There is no point in running it in cases unrelated to the browser bug.
-			if ( parent.nodeType != Node.ELEMENT_NODE || focus.offset != parent.childNodes.length - 1 ) {
-				return;
-			}
-
-			const childAtOffset = parent.childNodes[ focus.offset ];
-
-			// To stay on the safe side, the fix being as specific as possible, it targets only the
-			// selection which is at the very end of the element and preceded by <br />.
-			if ( childAtOffset && childAtOffset.tagName == 'BR' ) {
-				domSelection.addRange( domSelection.getRangeAt( 0 ) );
-			}
+			fixGeckoSelectionAfterBr( focus, domSelection );
 		}
 	}
 
@@ -951,3 +931,28 @@ function sameNodes( blockFiller, actualDomChild, expectedDomChild ) {
 	// Not matching types.
 	return false;
 }
+
+// The following is a Firefox–specific hack (https://github.com/ckeditor/ckeditor5-engine/issues/1439).
+// When the native DOM selection is at the end of the block and preceded by <br /> e.g.
+//
+//		<p>foo<br/>[]</p>
+//
+// which happens a lot when using the soft line break, the browser fails to (visually) move the
+// caret to the new line. A quick fix is as simple as force–refreshing the selection with the same range.
+function fixGeckoSelectionAfterBr( focus, domSelection ) {
+	const parent = focus.parent;
+
+	// This fix works only when the focus point is at the very end of an element.
+	// There is no point in running it in cases unrelated to the browser bug.
+	if ( parent.nodeType != Node.ELEMENT_NODE || focus.offset != parent.childNodes.length - 1 ) {
+		return;
+	}
+
+	const childAtOffset = parent.childNodes[ focus.offset ];
+
+	// To stay on the safe side, the fix being as specific as possible, it targets only the
+	// selection which is at the very end of the element and preceded by <br />.
+	if ( childAtOffset && childAtOffset.tagName == 'BR' ) {
+		domSelection.addRange( domSelection.getRangeAt( 0 ) );
+	}
+}