Zoom out: Add keyboard shortcut in editor

packages/editor/src/components/global-keyboard-shortcuts/index.js

@@ -10,6 +10,7 @@ import { store as blockEditorStore } from '@wordpress/block-editor';
  * Internal dependencies
  */
 import { store as editorStore } from '../../store';
+import { unlock } from '../../lock-unlock';
 
 /**
  * Handles the keyboard shortcuts for the editor.
@@ -24,7 +25,12 @@ export default function EditorKeyboardShortcuts() {
 			select( editorStore ).getEditorSettings();
 		return ! richEditingEnabled || ! codeEditingEnabled;
 	}, [] );
-	const { getBlockSelectionStart } = useSelect( blockEditorStore );
+	const { getBlockSelectionStart, isZoomOut } = unlock(
+		useSelect( blockEditorStore )
+	);
+	const { setZoomLevel, resetZoomLevel } = unlock(
+		useDispatch( blockEditorStore )
+	);
 	const { getActiveComplementaryArea } = useSelect( interfaceStore );
 	const { enableComplementaryArea, disableComplementaryArea } =
 		useDispatch( interfaceStore );
@@ -118,5 +124,13 @@ export default function EditorKeyboardShortcuts() {
 		}
 	} );
 
+	useShortcut( 'core/editor/zoom', () => {
+		if ( isZoomOut() ) {
+			resetZoomLevel();
+		} else {
+			setZoomLevel( 'auto-scaled' );
+		}
+	} );
+
 	return null;
 }

packages/editor/src/components/global-keyboard-shortcuts/register-shortcuts.js

@@ -144,6 +144,16 @@ function EditorKeyboardShortcutsRegister() {
 				},
 			],
 		} );
+
+		registerShortcut( {
+			name: 'core/editor/zoom',
+			category: 'global',
+			description: __( 'Enter or exit zoom out.' ),
+			keyCombination: {
+				modifier: 'primaryShift',
+				character: 'z',
+			},
+		} );
 	}, [ registerShortcut ] );
 
 	return <BlockEditorKeyboardShortcuts.Register />;