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insertion-point.js
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insertion-point.js
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/**
* External dependencies
*/
import classnames from 'classnames';
/**
* WordPress dependencies
*/
import { useSelect, useDispatch } from '@wordpress/data';
import { useRef, createContext, useContext } from '@wordpress/element';
import { __unstableMotion as motion } from '@wordpress/components';
import { useReducedMotion } from '@wordpress/compose';
/**
* Internal dependencies
*/
import Inserter from '../inserter';
import { store as blockEditorStore } from '../../store';
import BlockPopoverInbetween from '../block-popover/inbetween';
import BlockDropZonePopover from '../block-popover/drop-zone';
export const InsertionPointOpenRef = createContext();
function InbetweenInsertionPointPopover( {
__unstablePopoverSlot,
__unstableContentRef,
operation = 'insert',
nearestSide = 'right',
} ) {
const { selectBlock, hideInsertionPoint } = useDispatch( blockEditorStore );
const openRef = useContext( InsertionPointOpenRef );
const ref = useRef();
const {
orientation,
previousClientId,
nextClientId,
rootClientId,
isInserterShown,
isDistractionFree,
isNavigationMode,
} = useSelect( ( select ) => {
const {
getBlockOrder,
getBlockListSettings,
getBlockInsertionPoint,
isBlockBeingDragged,
getPreviousBlockClientId,
getNextBlockClientId,
getSettings,
isNavigationMode: _isNavigationMode,
} = select( blockEditorStore );
const insertionPoint = getBlockInsertionPoint();
const order = getBlockOrder( insertionPoint.rootClientId );
if ( ! order.length ) {
return {};
}
let _previousClientId = order[ insertionPoint.index - 1 ];
let _nextClientId = order[ insertionPoint.index ];
while ( isBlockBeingDragged( _previousClientId ) ) {
_previousClientId = getPreviousBlockClientId( _previousClientId );
}
while ( isBlockBeingDragged( _nextClientId ) ) {
_nextClientId = getNextBlockClientId( _nextClientId );
}
const settings = getSettings();
return {
previousClientId: _previousClientId,
nextClientId: _nextClientId,
orientation:
getBlockListSettings( insertionPoint.rootClientId )
?.orientation || 'vertical',
rootClientId: insertionPoint.rootClientId,
isNavigationMode: _isNavigationMode(),
isDistractionFree: settings.isDistractionFree,
isInserterShown: insertionPoint?.__unstableWithInserter,
};
}, [] );
const { getBlockEditingMode } = useSelect( blockEditorStore );
const disableMotion = useReducedMotion();
function onClick( event ) {
if (
event.target === ref.current &&
nextClientId &&
getBlockEditingMode( nextClientId ) !== 'disabled'
) {
selectBlock( nextClientId, -1 );
}
}
function maybeHideInserterPoint( event ) {
// Only hide the inserter if it's triggered on the wrapper,
// and the inserter is not open.
if ( event.target === ref.current && ! openRef.current ) {
hideInsertionPoint();
}
}
function onFocus( event ) {
// Only handle click on the wrapper specifically, and not an event
// bubbled from the inserter itself.
if ( event.target !== ref.current ) {
openRef.current = true;
}
}
const lineVariants = {
// Initial position starts from the center and invisible.
start: {
opacity: 0,
scale: 0,
},
// The line expands to fill the container. If the inserter is visible it
// is delayed so it appears orchestrated.
rest: {
opacity: 1,
scale: 1,
transition: { delay: isInserterShown ? 0.5 : 0, type: 'tween' },
},
hover: {
opacity: 1,
scale: 1,
transition: { delay: 0.5, type: 'tween' },
},
};
const inserterVariants = {
start: {
scale: disableMotion ? 1 : 0,
},
rest: {
scale: 1,
transition: { delay: 0.4, type: 'tween' },
},
};
if ( isDistractionFree && ! isNavigationMode ) {
return null;
}
const orientationClassname =
orientation === 'horizontal' || operation === 'group'
? 'is-horizontal'
: 'is-vertical';
const className = classnames(
'block-editor-block-list__insertion-point',
orientationClassname
);
return (
<BlockPopoverInbetween
previousClientId={ previousClientId }
nextClientId={ nextClientId }
__unstablePopoverSlot={ __unstablePopoverSlot }
__unstableContentRef={ __unstableContentRef }
operation={ operation }
nearestSide={ nearestSide }
>
<motion.div
layout={ ! disableMotion }
initial={ disableMotion ? 'rest' : 'start' }
animate="rest"
whileHover="hover"
whileTap="pressed"
exit="start"
ref={ ref }
tabIndex={ -1 }
onClick={ onClick }
onFocus={ onFocus }
className={ classnames( className, {
'is-with-inserter': isInserterShown,
} ) }
onHoverEnd={ maybeHideInserterPoint }
>
<motion.div
variants={ lineVariants }
className="block-editor-block-list__insertion-point-indicator"
data-testid="block-list-insertion-point-indicator"
/>
{ isInserterShown && (
<motion.div
variants={ inserterVariants }
className={ classnames(
'block-editor-block-list__insertion-point-inserter'
) }
>
<Inserter
position="bottom center"
clientId={ nextClientId }
rootClientId={ rootClientId }
__experimentalIsQuick
onToggle={ ( isOpen ) => {
openRef.current = isOpen;
} }
onSelectOrClose={ () => {
openRef.current = false;
} }
/>
</motion.div>
) }
</motion.div>
</BlockPopoverInbetween>
);
}
export default function InsertionPoint( props ) {
const { insertionPoint, isVisible, isBlockListEmpty } = useSelect(
( select ) => {
const {
getBlockInsertionPoint,
isBlockInsertionPointVisible,
getBlockCount,
} = select( blockEditorStore );
const blockInsertionPoint = getBlockInsertionPoint();
return {
insertionPoint: blockInsertionPoint,
isVisible: isBlockInsertionPointVisible(),
isBlockListEmpty:
getBlockCount( blockInsertionPoint?.rootClientId ) === 0,
};
},
[]
);
if (
! isVisible ||
// Don't render the insertion point if the block list is empty.
// The insertion point will be represented by the appender instead.
isBlockListEmpty
) {
return null;
}
/**
* Render a popover that overlays the block when the desired operation is to replace it.
* Otherwise, render a popover in between blocks for the indication of inserting between them.
*/
return insertionPoint.operation === 'replace' ? (
<BlockDropZonePopover
// Force remount to trigger the animation.
key={ `${ insertionPoint.rootClientId }-${ insertionPoint.index }` }
{ ...props }
/>
) : (
<InbetweenInsertionPointPopover
operation={ insertionPoint.operation }
nearestSide={ insertionPoint.nearestSide }
{ ...props }
/>
);
}