List View: Add keyboard shortcut to collapse list view items other than the focused item

packages/block-editor/src/components/block-tools/index.js

@@ -2,6 +2,7 @@
  * WordPress dependencies
  */
 import { useSelect, useDispatch } from '@wordpress/data';
+import { isTextField } from '@wordpress/dom';
 import { Popover } from '@wordpress/components';
 import { __unstableUseShortcutEventMatch as useShortcutEventMatch } from '@wordpress/keyboard-shortcuts';
 import { useRef } from '@wordpress/element';
@@ -20,6 +21,7 @@ import { store as blockEditorStore } from '../../store';
 import usePopoverScroll from '../block-popover/use-popover-scroll';
 import ZoomOutModeInserters from './zoom-out-mode-inserters';
 import { useShowBlockTools } from './use-show-block-tools';
+import { unlock } from '../../lock-unlock';
 
 function selector( select ) {
 	const {
@@ -79,7 +81,8 @@ export default function BlockTools( {
 		selectBlock,
 		moveBlocksUp,
 		moveBlocksDown,
-	} = useDispatch( blockEditorStore );
+		expandBlock,
+	} = unlock( useDispatch( blockEditorStore ) );
 
 	function onKeyDown( event ) {
 		if ( event.defaultPrevented ) return;
@@ -140,6 +143,20 @@ export default function BlockTools( {
 				// In effect, to the user this feels like deselecting the multi-selection.
 				selectBlock( clientIds[ 0 ] );
 			}
+		} else if ( isMatch( 'core/block-editor/collapse-list-view', event ) ) {
+			// If focus is currently within a text field, such as a rich text block or other editable field,
+			// skip collapsing the list view, and allow the keyboard shortcut to be handled by the text field.
+			// This condition checks for both the active element and the active element within an iframed editor.
+			if (
+				isTextField( event.target ) ||
+				isTextField(
+					event.target?.contentWindow?.document?.activeElement
+				)
+			) {
+				return;
+			}
+			event.preventDefault();
+			expandBlock( clientId );
 		}
 	}
 

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

@@ -132,6 +132,17 @@ function KeyboardShortcutsRegister() {
 				character: 'y',
 			},
 		} );
+
+		// List view shortcuts.
+		registerShortcut( {
+			name: 'core/block-editor/collapse-list-view',
+			category: 'list-view',
+			description: __( 'Collapse all other items.' ),
+			keyCombination: {
+				modifier: 'alt',
+				character: 'l',
+			},
+		} );
 	}, [ registerShortcut ] );
 
 	return null;

packages/block-editor/src/components/list-view/block-select-button.js

@@ -65,6 +65,7 @@ function ListViewBlockSelectButton(
 		getPreviousBlockClientId,
 		getBlockRootClientId,
 		getBlockOrder,
+		getBlockParents,
 		getBlocksByClientId,
 		canRemoveBlocks,
 	} = useSelect( blockEditorStore );
@@ -73,7 +74,7 @@ function ListViewBlockSelectButton(
 	const isMatch = useShortcutEventMatch();
 	const isSticky = blockInformation?.positionType === 'sticky';
 	const images = useListViewImages( { clientId, isExpanded } );
-	const { rootClientId } = useListViewContext();
+	const { collapseAll, expand, rootClientId } = useListViewContext();
 
 	const positionLabel = blockInformation?.positionLabel
 		? sprintf(
@@ -228,6 +229,17 @@ function ListViewBlockSelectButton(
 				blockClientIds[ blockClientIds.length - 1 ],
 				null
 			);
+		} else if ( isMatch( 'core/block-editor/collapse-list-view', event ) ) {
+			if ( event.defaultPrevented ) {
+				return;
+			}
+			event.preventDefault();
+			const { firstBlockClientId } = getBlocksToUpdate();
+			const blockParents = getBlockParents( firstBlockClientId, false );
+			// Collapse all blocks.
+			collapseAll();
+			// Expand all parents of the current block.
+			expand( blockParents );
 		}
 	}
 

packages/block-editor/src/components/list-view/index.js

@@ -37,6 +37,7 @@ import ListViewDropIndicatorPreview from './drop-indicator';
 import useBlockSelection from './use-block-selection';
 import useListViewBlockIndexes from './use-list-view-block-indexes';
 import useListViewClientIds from './use-list-view-client-ids';
+import useListViewCollapseItems from './use-list-view-collapse-items';
 import useListViewDropZone from './use-list-view-drop-zone';
 import useListViewExpandSelectedItem from './use-list-view-expand-selected-item';
 import { store as blockEditorStore } from '../../store';
@@ -45,6 +46,9 @@ import { focusListItem } from './utils';
 import useClipboardHandler from './use-clipboard-handler';
 
 const expanded = ( state, action ) => {
+	if ( action.type === 'clear' ) {
+		return {};
+	}
 	if ( Array.isArray( action.clientIds ) ) {
 		return {
 			...state,
@@ -194,7 +198,10 @@ function ListViewComponent(
 			if ( ! clientId ) {
 				return;
 			}
-			setExpandedState( { type: 'expand', clientIds: [ clientId ] } );
+			const clientIds = Array.isArray( clientId )
+				? clientId
+				: [ clientId ];
+			setExpandedState( { type: 'expand', clientIds } );
 		},
 		[ setExpandedState ]
 	);
@@ -207,6 +214,9 @@ function ListViewComponent(
 		},
 		[ setExpandedState ]
 	);
+	const collapseAll = useCallback( () => {
+		setExpandedState( { type: 'clear' } );
+	}, [ setExpandedState ] );
 	const expandRow = useCallback(
 		( row ) => {
 			expand( row?.dataset?.block );
@@ -232,6 +242,11 @@ function ListViewComponent(
 		[ updateBlockSelection ]
 	);
 
+	useListViewCollapseItems( {
+		collapseAll,
+		expand,
+	} );
+
 	const firstDraggedBlockClientId = draggedClientIds?.[ 0 ];
 
 	// Convert a blockDropTarget into indexes relative to the blocks in the list view.
@@ -282,6 +297,7 @@ function ListViewComponent(
 			expand,
 			firstDraggedBlockIndex,
 			collapse,
+			collapseAll,
 			BlockSettingsMenu,
 			listViewInstanceId: instanceId,
 			AdditionalBlockContent,
@@ -299,6 +315,7 @@ function ListViewComponent(
 			expand,
 			firstDraggedBlockIndex,
 			collapse,
+			collapseAll,
 			BlockSettingsMenu,
 			instanceId,
 			AdditionalBlockContent,

packages/block-editor/src/components/list-view/use-list-view-collapse-items.js

@@ -0,0 +1,33 @@
+/**
+ * WordPress dependencies
+ */
+import { useEffect } from '@wordpress/element';
+import { useSelect } from '@wordpress/data';
+
+/**
+ * Internal dependencies
+ */
+import { store as blockEditorStore } from '../../store';
+import { unlock } from '../../lock-unlock';
+
+export default function useListViewCollapseItems( { collapseAll, expand } ) {
+	const { expandedBlock, getBlockParents } = useSelect( ( select ) => {
+		const { getBlockParents: _getBlockParents, getExpandedBlock } = unlock(
+			select( blockEditorStore )
+		);
+		return {
+			expandedBlock: getExpandedBlock(),
+			getBlockParents: _getBlockParents,
+		};
+	}, [] );
+
+	// Collapse all but the specified block when the expanded block client Id changes.
+	useEffect( () => {
+		if ( expandedBlock ) {
+			const blockParents = getBlockParents( expandedBlock, false );
+			// Collapse all blocks and expand the block's parents.
+			collapseAll();
+			expand( blockParents );
+		}
+	}, [ collapseAll, expand, expandedBlock, getBlockParents ] );
+}

packages/block-editor/src/store/private-actions.js

@@ -376,3 +376,15 @@ export function stopDragging() {
 		type: 'STOP_DRAGGING',
 	};
 }
+
+/**
+ * @param {string|null} clientId The block's clientId, or `null` to clear.
+ *
+ * @return  {Object} Action object.
+ */
+export function expandBlock( clientId ) {
+	return {
+		type: 'SET_BLOCK_EXPANDED_IN_LIST_VIEW',
+		clientId,
+	};
+}

packages/block-editor/src/store/private-selectors.js

@@ -353,3 +353,14 @@ export function getLastFocus( state ) {
 export function isDragging( state ) {
 	return state.isDragging;
 }
+
+/**
+ * Retrieves the expanded block from the state.
+ *
+ * @param {Object} state Block editor state.
+ *
+ * @return {string|null} The client ID of the expanded block, if set.
+ */
+export function getExpandedBlock( state ) {
+	return state.expandedBlock;
+}

packages/block-editor/src/store/reducer.js

@@ -1889,6 +1889,27 @@ export function highlightedBlock( state, action ) {
 	return state;
 }
 
+/**
+ * Reducer returning current expanded block in the list view.
+ *
+ * @param {string|null} state  Current expanded block.
+ * @param {Object}      action Dispatched action.
+ *
+ * @return {string|null} Updated state.
+ */
+export function expandedBlock( state = null, action ) {
+	switch ( action.type ) {
+		case 'SET_BLOCK_EXPANDED_IN_LIST_VIEW':
+			return action.clientId;
+		case 'SELECT_BLOCK':
+			if ( action.clientId !== state ) {
+				return null;
+			}
+	}
+
+	return state;
+}
+
 /**
  * Reducer returning the block insertion event list state.
  *
@@ -2064,6 +2085,7 @@ const combinedReducers = combineReducers( {
 	lastFocus,
 	editorMode,
 	hasBlockMovingClientId,
+	expandedBlock,
 	highlightedBlock,
 	lastBlockInserted,
 	temporarilyEditingAsBlocks,

packages/block-editor/src/store/test/private-actions.js

@@ -4,6 +4,7 @@
 import {
 	hideBlockInterface,
 	showBlockInterface,
+	expandBlock,
 	__experimentalUpdateSettings,
 	setOpenedBlockSettingsMenu,
 	startDragging,
@@ -113,4 +114,13 @@ describe( 'private actions', () => {
 			} );
 		} );
 	} );
+
+	describe( 'expandBlock', () => {
+		it( 'should return the SET_BLOCK_EXPANDED_IN_LIST_VIEW action', () => {
+			expect( expandBlock( 'block-1' ) ).toEqual( {
+				type: 'SET_BLOCK_EXPANDED_IN_LIST_VIEW',
+				clientId: 'block-1',
+			} );
+		} );
+	} );
 } );

packages/block-editor/src/store/test/private-selectors.js

@@ -7,6 +7,7 @@ import {
 	isBlockSubtreeDisabled,
 	getEnabledClientIdsTree,
 	getEnabledBlockParents,
+	getExpandedBlock,
 	isDragging,
 } from '../private-selectors';
 import { getBlockEditingMode } from '../selectors';
@@ -496,4 +497,16 @@ describe( 'private selectors', () => {
 			expect( isDragging( state ) ).toBe( false );
 		} );
 	} );
+
+	describe( 'getExpandedBlock', () => {
+		it( 'should return the expanded block', () => {
+			const state = {
+				expandedBlock: '9b9c5c3f-2e46-4f02-9e14-9fe9515b958f',
+			};
+
+			expect( getExpandedBlock( state ) ).toBe(
+				'9b9c5c3f-2e46-4f02-9e14-9fe9515b958f'
+			);
+		} );
+	} );
 } );

packages/block-editor/src/store/test/reducer.js

@@ -35,6 +35,7 @@ import {
 	lastBlockInserted,
 	blockEditingModes,
 	openedBlockSettingsMenu,
+	expandedBlock,
 } from '../reducer';
 
 const noop = () => {};
@@ -3459,4 +3460,29 @@ describe( 'state', () => {
 			expect( state ).toBe( null );
 		} );
 	} );
+
+	describe( 'expandedBlock', () => {
+		it( 'should return null by default', () => {
+			expect( expandedBlock( undefined, {} ) ).toBe( null );
+		} );
+
+		it( 'should set client id for expanded block', () => {
+			const state = expandedBlock( null, {
+				type: 'SET_BLOCK_EXPANDED_IN_LIST_VIEW',
+				clientId: '14501cc2-90a6-4f52-aa36-ab6e896135d1',
+			} );
+			expect( state ).toBe( '14501cc2-90a6-4f52-aa36-ab6e896135d1' );
+		} );
+
+		it( 'should clear the state when a block is selected', () => {
+			const state = expandedBlock(
+				'14501cc2-90a6-4f52-aa36-ab6e896135d1',
+				{
+					type: 'SELECT_BLOCK',
+					clientId: 'a-different-block',
+				}
+			);
+			expect( state ).toBe( null );
+		} );
+	} );
 } );

packages/edit-post/src/components/keyboard-shortcut-help-modal/index.js

@@ -136,6 +136,10 @@ export function KeyboardShortcutHelpModal( { isModalActive, toggleModal } ) {
 				title={ __( 'Text formatting' ) }
 				shortcuts={ textFormattingShortcuts }
 			/>
+			<ShortcutCategorySection
+				title={ __( 'List View shortcuts' ) }
+				categoryName="list-view"
+			/>
 		</Modal>
 	);
 }

packages/edit-site/src/components/keyboard-shortcut-help-modal/index.js

@@ -142,6 +142,10 @@ export default function KeyboardShortcutHelpModal() {
 				title={ __( 'Text formatting' ) }
 				shortcuts={ textFormattingShortcuts }
 			/>
+			<ShortcutCategorySection
+				title={ __( 'List View shortcuts' ) }
+				categoryName="list-view"
+			/>
 		</Modal>
 	);
 }

packages/edit-widgets/src/components/keyboard-shortcut-help-modal/index.js

@@ -135,6 +135,10 @@ export default function KeyboardShortcutHelpModal( {
 				title={ __( 'Text formatting' ) }
 				shortcuts={ textFormattingShortcuts }
 			/>
+			<ShortcutCategorySection
+				title={ __( 'List View shortcuts' ) }
+				categoryName="list-view"
+			/>
 		</Modal>
 	);
 }