@wordpress/block-editor/build/components/use-block-drop-zone/index.cjs.map

Generic block editor.

{
  "version": 3,
  "sources": ["../../../src/components/use-block-drop-zone/index.js"],
  "sourcesContent": ["/**\n * WordPress dependencies\n */\nimport { useDispatch, useSelect, useRegistry } from '@wordpress/data';\nimport { useCallback, useState } from '@wordpress/element';\nimport {\n\tuseThrottle,\n\t__experimentalUseDropZone as useDropZone,\n} from '@wordpress/compose';\nimport { isRTL } from '@wordpress/i18n';\nimport {\n\thasBlockSupport,\n\tisUnmodifiedDefaultBlock as getIsUnmodifiedDefaultBlock,\n\tstore as blocksStore,\n} from '@wordpress/blocks';\n\n/**\n * Internal dependencies\n */\nimport useOnBlockDrop from '../use-on-block-drop';\nimport {\n\tgetDistanceToNearestEdge,\n\tisPointContainedByRect,\n\tisPointWithinTopAndBottomBoundariesOfRect,\n} from '../../utils/math';\nimport { store as blockEditorStore } from '../../store';\nimport { unlock } from '../../lock-unlock';\n\nconst THRESHOLD_DISTANCE = 30;\nconst MINIMUM_HEIGHT_FOR_THRESHOLD = 120;\nconst MINIMUM_WIDTH_FOR_THRESHOLD = 120;\n\n/** @typedef {import('../../utils/math').WPPoint} WPPoint */\n/** @typedef {import('../use-on-block-drop/types').WPDropOperation} WPDropOperation */\n\n/**\n * The orientation of a block list.\n *\n * @typedef {'horizontal'|'vertical'|undefined} WPBlockListOrientation\n */\n\n/**\n * The insert position when dropping a block.\n *\n * @typedef {'before'|'after'} WPInsertPosition\n */\n\n/**\n * @typedef {Object} WPBlockData\n * @property {boolean}       isUnmodifiedDefaultBlock Is the block unmodified default block.\n * @property {() => DOMRect} getBoundingClientRect    Get the bounding client rect of the block.\n * @property {number}        blockIndex               The index of the block.\n */\n\n/**\n * Get the drop target position from a given drop point and the orientation.\n *\n * @param {WPBlockData[]}          blocksData  The block data list.\n * @param {WPPoint}                position    The position of the item being dragged.\n * @param {WPBlockListOrientation} orientation The orientation of the block list.\n * @param {Object}                 options     Additional options.\n * @return {[number, WPDropOperation]} The drop target position.\n */\nexport function getDropTargetPosition(\n\tblocksData,\n\tposition,\n\torientation = 'vertical',\n\toptions = {}\n) {\n\tconst allowedEdges =\n\t\torientation === 'horizontal'\n\t\t\t? [ 'left', 'right' ]\n\t\t\t: [ 'top', 'bottom' ];\n\n\tlet nearestIndex = 0;\n\tlet insertPosition = 'before';\n\tlet minDistance = Infinity;\n\tlet targetBlockIndex = null;\n\tlet nearestSide = 'right';\n\n\tconst {\n\t\tdropZoneElement,\n\t\tparentBlockOrientation,\n\t\trootBlockIndex = 0,\n\t} = options;\n\n\t// Allow before/after when dragging over the top/bottom edges of the drop zone.\n\tif ( dropZoneElement && parentBlockOrientation !== 'horizontal' ) {\n\t\tconst rect = dropZoneElement.getBoundingClientRect();\n\t\tconst [ distance, edge ] = getDistanceToNearestEdge( position, rect, [\n\t\t\t'top',\n\t\t\t'bottom',\n\t\t] );\n\n\t\t// If dragging over the top or bottom of the drop zone, insert the block\n\t\t// before or after the parent block. This only applies to blocks that use\n\t\t// a drop zone element, typically container blocks such as Group or Cover.\n\t\tif (\n\t\t\trect.height > MINIMUM_HEIGHT_FOR_THRESHOLD &&\n\t\t\tdistance < THRESHOLD_DISTANCE\n\t\t) {\n\t\t\tif ( edge === 'top' ) {\n\t\t\t\treturn [ rootBlockIndex, 'before' ];\n\t\t\t}\n\t\t\tif ( edge === 'bottom' ) {\n\t\t\t\treturn [ rootBlockIndex + 1, 'after' ];\n\t\t\t}\n\t\t}\n\t}\n\n\tconst isRightToLeft = isRTL();\n\n\t// Allow before/after when dragging over the left/right edges of the drop zone.\n\tif ( dropZoneElement && parentBlockOrientation === 'horizontal' ) {\n\t\tconst rect = dropZoneElement.getBoundingClientRect();\n\t\tconst [ distance, edge ] = getDistanceToNearestEdge( position, rect, [\n\t\t\t'left',\n\t\t\t'right',\n\t\t] );\n\n\t\t// If dragging over the left or right of the drop zone, insert the block\n\t\t// before or after the parent block. This only applies to blocks that use\n\t\t// a drop zone element, typically container blocks such as Group.\n\t\tif (\n\t\t\trect.width > MINIMUM_WIDTH_FOR_THRESHOLD &&\n\t\t\tdistance < THRESHOLD_DISTANCE\n\t\t) {\n\t\t\tif (\n\t\t\t\t( isRightToLeft && edge === 'right' ) ||\n\t\t\t\t( ! isRightToLeft && edge === 'left' )\n\t\t\t) {\n\t\t\t\treturn [ rootBlockIndex, 'before' ];\n\t\t\t}\n\t\t\tif (\n\t\t\t\t( isRightToLeft && edge === 'left' ) ||\n\t\t\t\t( ! isRightToLeft && edge === 'right' )\n\t\t\t) {\n\t\t\t\treturn [ rootBlockIndex + 1, 'after' ];\n\t\t\t}\n\t\t}\n\t}\n\n\tblocksData.forEach(\n\t\t( {\n\t\t\tisUnmodifiedDefaultBlock,\n\t\t\tgetBoundingClientRect,\n\t\t\tblockIndex,\n\t\t\tblockOrientation,\n\t\t} ) => {\n\t\t\tconst rect = getBoundingClientRect();\n\n\t\t\tif ( ! rect ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tlet [ distance, edge ] = getDistanceToNearestEdge(\n\t\t\t\tposition,\n\t\t\t\trect,\n\t\t\t\tallowedEdges\n\t\t\t);\n\t\t\t// If the the point is close to a side, prioritize that side.\n\t\t\tconst [ sideDistance, sideEdge ] = getDistanceToNearestEdge(\n\t\t\t\tposition,\n\t\t\t\trect,\n\t\t\t\t[ 'left', 'right' ]\n\t\t\t);\n\n\t\t\tconst isPointInsideRect = isPointContainedByRect( position, rect );\n\n\t\t\t// Prioritize the element if the point is inside of an unmodified default block.\n\t\t\tif ( isUnmodifiedDefaultBlock && isPointInsideRect ) {\n\t\t\t\tdistance = 0;\n\t\t\t} else if (\n\t\t\t\torientation === 'vertical' &&\n\t\t\t\tblockOrientation !== 'horizontal' &&\n\t\t\t\t( ( isPointInsideRect && sideDistance < THRESHOLD_DISTANCE ) ||\n\t\t\t\t\t( ! isPointInsideRect &&\n\t\t\t\t\t\tisPointWithinTopAndBottomBoundariesOfRect(\n\t\t\t\t\t\t\tposition,\n\t\t\t\t\t\t\trect\n\t\t\t\t\t\t) ) )\n\t\t\t) {\n\t\t\t\t/**\n\t\t\t\t * This condition should only apply when the layout is vertical (otherwise there's\n\t\t\t\t * no need to create a Row) and dropzones should only activate when the block is\n\t\t\t\t * either within and close to the sides of the target block or on its outer sides.\n\t\t\t\t */\n\t\t\t\ttargetBlockIndex = blockIndex;\n\t\t\t\tnearestSide = sideEdge;\n\t\t\t}\n\n\t\t\tif ( distance < minDistance ) {\n\t\t\t\t// Where the dropped block will be inserted on the nearest block.\n\t\t\t\tinsertPosition =\n\t\t\t\t\tedge === 'bottom' ||\n\t\t\t\t\t( ! isRightToLeft && edge === 'right' ) ||\n\t\t\t\t\t( isRightToLeft && edge === 'left' )\n\t\t\t\t\t\t? 'after'\n\t\t\t\t\t\t: 'before';\n\n\t\t\t\t// Update the currently known best candidate.\n\t\t\t\tminDistance = distance;\n\t\t\t\tnearestIndex = blockIndex;\n\t\t\t}\n\t\t}\n\t);\n\n\tconst adjacentIndex =\n\t\tnearestIndex + ( insertPosition === 'after' ? 1 : -1 );\n\tconst isNearestBlockUnmodifiedDefaultBlock =\n\t\t!! blocksData[ nearestIndex ]?.isUnmodifiedDefaultBlock;\n\tconst isAdjacentBlockUnmodifiedDefaultBlock =\n\t\t!! blocksData[ adjacentIndex ]?.isUnmodifiedDefaultBlock;\n\n\t// If the target index is set then group with the block at that index.\n\tif ( targetBlockIndex !== null ) {\n\t\treturn [ targetBlockIndex, 'group', nearestSide ];\n\t}\n\t// If both blocks are not unmodified default blocks then just insert between them.\n\tif (\n\t\t! isNearestBlockUnmodifiedDefaultBlock &&\n\t\t! isAdjacentBlockUnmodifiedDefaultBlock\n\t) {\n\t\t// If the user is dropping to the trailing edge of the block\n\t\t// add 1 to the index to represent dragging after.\n\t\tconst insertionIndex =\n\t\t\tinsertPosition === 'after' ? nearestIndex + 1 : nearestIndex;\n\t\treturn [ insertionIndex, 'insert' ];\n\t}\n\n\t// Otherwise, replace the nearest unmodified default block.\n\treturn [\n\t\tisNearestBlockUnmodifiedDefaultBlock ? nearestIndex : adjacentIndex,\n\t\t'replace',\n\t];\n}\n\n/**\n * Check if the dragged blocks can be dropped on the target.\n * @param {Function} getBlockType\n * @param {Object[]} allowedBlocks\n * @param {string[]} draggedBlockNames\n * @param {string}   targetBlockName\n * @return {boolean} Whether the dragged blocks can be dropped on the target.\n */\nexport function isDropTargetValid(\n\tgetBlockType,\n\tallowedBlocks,\n\tdraggedBlockNames,\n\ttargetBlockName\n) {\n\t// At root level allowedBlocks is undefined and all blocks are allowed.\n\t// Otherwise, check if all dragged blocks are allowed.\n\tlet areBlocksAllowed = true;\n\tif ( allowedBlocks ) {\n\t\tconst allowedBlockNames = allowedBlocks?.map( ( { name } ) => name );\n\n\t\tareBlocksAllowed = draggedBlockNames.every( ( name ) =>\n\t\t\tallowedBlockNames?.includes( name )\n\t\t);\n\t}\n\n\t// Work out if dragged blocks have an allowed parent and if so\n\t// check target block matches the allowed parent.\n\tconst draggedBlockTypes = draggedBlockNames.map( ( name ) =>\n\t\tgetBlockType( name )\n\t);\n\tconst targetMatchesDraggedBlockParents = draggedBlockTypes.every(\n\t\t( block ) => {\n\t\t\tconst [ allowedParentName ] = block?.parent || [];\n\t\t\tif ( ! allowedParentName ) {\n\t\t\t\treturn true;\n\t\t\t}\n\n\t\t\treturn allowedParentName === targetBlockName;\n\t\t}\n\t);\n\n\treturn areBlocksAllowed && targetMatchesDraggedBlockParents;\n}\n\n/**\n * Checks if the given element is an insertion point.\n *\n * @param {EventTarget|null} targetToCheck - The element to check.\n * @param {Document}         ownerDocument - The owner document of the element.\n * @return {boolean} True if the element is a insertion point, false otherwise.\n */\nfunction isInsertionPoint( targetToCheck, ownerDocument ) {\n\tconst { defaultView } = ownerDocument;\n\n\treturn !! (\n\t\tdefaultView &&\n\t\ttargetToCheck instanceof defaultView.HTMLElement &&\n\t\ttargetToCheck.closest( '[data-is-insertion-point]' )\n\t);\n}\n\n/**\n * @typedef  {Object} WPBlockDropZoneConfig\n * @property {?HTMLElement} dropZoneElement Optional element to be used as the drop zone.\n * @property {string}       rootClientId    The root client id for the block list.\n */\n\n/**\n * A React hook that can be used to make a block list handle drag and drop.\n *\n * @param {WPBlockDropZoneConfig} dropZoneConfig configuration data for the drop zone.\n */\nexport default function useBlockDropZone( {\n\tdropZoneElement,\n\t// An undefined value represents a top-level block. Default to an empty\n\t// string for this so that `targetRootClientId` can be easily compared to\n\t// values returned by the `getRootBlockClientId` selector, which also uses\n\t// an empty string to represent top-level blocks.\n\trootClientId: targetRootClientId = '',\n\tparentClientId: parentBlockClientId = '',\n\tisDisabled = false,\n} = {} ) {\n\tconst registry = useRegistry();\n\tconst [ dropTarget, setDropTarget ] = useState( {\n\t\tindex: null,\n\t\toperation: 'insert',\n\t} );\n\n\tconst { getBlockType, getBlockVariations, getGroupingBlockName } =\n\t\tuseSelect( blocksStore );\n\tconst {\n\t\tcanInsertBlockType,\n\t\tgetBlockListSettings,\n\t\tgetBlocks,\n\t\tgetBlockIndex,\n\t\tgetDraggedBlockClientIds,\n\t\tgetBlockNamesByClientId,\n\t\tgetAllowedBlocks,\n\t\tisDragging,\n\t\tisGroupable,\n\t\tisZoomOut,\n\t\tgetSectionRootClientId,\n\t\tgetBlockParents,\n\t} = unlock( useSelect( blockEditorStore ) );\n\tconst {\n\t\tshowInsertionPoint,\n\t\thideInsertionPoint,\n\t\tstartDragging,\n\t\tstopDragging,\n\t} = unlock( useDispatch( blockEditorStore ) );\n\n\tconst onBlockDrop = useOnBlockDrop(\n\t\tdropTarget.operation === 'before' || dropTarget.operation === 'after'\n\t\t\t? parentBlockClientId\n\t\t\t: targetRootClientId,\n\t\tdropTarget.index,\n\t\t{\n\t\t\toperation: dropTarget.operation,\n\t\t\tnearestSide: dropTarget.nearestSide,\n\t\t}\n\t);\n\tconst throttled = useThrottle(\n\t\tuseCallback(\n\t\t\t( event, ownerDocument ) => {\n\t\t\t\tif ( ! isDragging() ) {\n\t\t\t\t\t// When dragging from the desktop, no drag start event is fired.\n\t\t\t\t\t// So, ensure that the drag state is set when the user drags over a drop zone.\n\t\t\t\t\tstartDragging();\n\t\t\t\t}\n\n\t\t\t\tconst draggedBlockClientIds = getDraggedBlockClientIds();\n\t\t\t\tconst targetParents = [\n\t\t\t\t\ttargetRootClientId,\n\t\t\t\t\t...getBlockParents( targetRootClientId, true ),\n\t\t\t\t];\n\n\t\t\t\t// Check if the target is within any of the dragged blocks.\n\t\t\t\tconst isTargetWithinDraggedBlocks = draggedBlockClientIds.some(\n\t\t\t\t\t( clientId ) => targetParents.includes( clientId )\n\t\t\t\t);\n\n\t\t\t\tif ( isTargetWithinDraggedBlocks ) {\n\t\t\t\t\treturn;\n\t\t\t\t}\n\n\t\t\t\tconst allowedBlocks = getAllowedBlocks( targetRootClientId );\n\t\t\t\tconst targetBlockName = getBlockNamesByClientId( [\n\t\t\t\t\ttargetRootClientId,\n\t\t\t\t] )[ 0 ];\n\n\t\t\t\tconst draggedBlockNames = getBlockNamesByClientId(\n\t\t\t\t\tdraggedBlockClientIds\n\t\t\t\t);\n\t\t\t\tconst isBlockDroppingAllowed = isDropTargetValid(\n\t\t\t\t\tgetBlockType,\n\t\t\t\t\tallowedBlocks,\n\t\t\t\t\tdraggedBlockNames,\n\t\t\t\t\ttargetBlockName\n\t\t\t\t);\n\n\t\t\t\tif ( ! isBlockDroppingAllowed ) {\n\t\t\t\t\treturn;\n\t\t\t\t}\n\n\t\t\t\tconst sectionRootClientId = getSectionRootClientId();\n\n\t\t\t\t// In Zoom Out mode, if the target is not the section root provided by settings then\n\t\t\t\t// do not allow dropping as the drop target is not within the root (that which is\n\t\t\t\t// treated as \"the content\" by Zoom Out Mode).\n\t\t\t\tif (\n\t\t\t\t\tisZoomOut() &&\n\t\t\t\t\tsectionRootClientId !== targetRootClientId\n\t\t\t\t) {\n\t\t\t\t\treturn;\n\t\t\t\t}\n\n\t\t\t\tconst blocks = getBlocks( targetRootClientId )\n\t\t\t\t\t// Filter out blocks that are hidden\n\t\t\t\t\t.filter( ( block ) => {\n\t\t\t\t\t\treturn ! (\n\t\t\t\t\t\t\thasBlockSupport( block.name, 'visibility', true ) &&\n\t\t\t\t\t\t\tblock.attributes?.metadata?.blockVisibility ===\n\t\t\t\t\t\t\t\tfalse\n\t\t\t\t\t\t);\n\t\t\t\t\t} );\n\n\t\t\t\t// The block list is empty, don't show the insertion point but still allow dropping.\n\t\t\t\tif ( blocks.length === 0 ) {\n\t\t\t\t\tregistry.batch( () => {\n\t\t\t\t\t\tsetDropTarget( {\n\t\t\t\t\t\t\tindex: 0,\n\t\t\t\t\t\t\toperation: 'insert',\n\t\t\t\t\t\t} );\n\t\t\t\t\t\tshowInsertionPoint( targetRootClientId, 0, {\n\t\t\t\t\t\t\toperation: 'insert',\n\t\t\t\t\t\t} );\n\t\t\t\t\t} );\n\t\t\t\t\treturn;\n\t\t\t\t}\n\n\t\t\t\tconst blocksData = blocks.map( ( block ) => {\n\t\t\t\t\tconst clientId = block.clientId;\n\n\t\t\t\t\treturn {\n\t\t\t\t\t\tisUnmodifiedDefaultBlock:\n\t\t\t\t\t\t\tgetIsUnmodifiedDefaultBlock( block ),\n\t\t\t\t\t\tgetBoundingClientRect: () => {\n\t\t\t\t\t\t\tconst blockElement = ownerDocument.getElementById(\n\t\t\t\t\t\t\t\t`block-${ clientId }`\n\t\t\t\t\t\t\t);\n\t\t\t\t\t\t\treturn blockElement\n\t\t\t\t\t\t\t\t? blockElement.getBoundingClientRect()\n\t\t\t\t\t\t\t\t: null;\n\t\t\t\t\t\t},\n\t\t\t\t\t\tblockIndex: getBlockIndex( clientId ),\n\t\t\t\t\t\tblockOrientation:\n\t\t\t\t\t\t\tgetBlockListSettings( clientId )?.orientation,\n\t\t\t\t\t};\n\t\t\t\t} );\n\n\t\t\t\tconst dropTargetPosition = getDropTargetPosition(\n\t\t\t\t\tblocksData,\n\t\t\t\t\t{ x: event.clientX, y: event.clientY },\n\t\t\t\t\tgetBlockListSettings( targetRootClientId )?.orientation,\n\t\t\t\t\t{\n\t\t\t\t\t\tdropZoneElement,\n\t\t\t\t\t\tparentBlockClientId,\n\t\t\t\t\t\tparentBlockOrientation: parentBlockClientId\n\t\t\t\t\t\t\t? getBlockListSettings( parentBlockClientId )\n\t\t\t\t\t\t\t\t\t?.orientation\n\t\t\t\t\t\t\t: undefined,\n\t\t\t\t\t\trootBlockIndex: getBlockIndex( targetRootClientId ),\n\t\t\t\t\t}\n\t\t\t\t);\n\n\t\t\t\tconst [ targetIndex, operation, nearestSide ] =\n\t\t\t\t\tdropTargetPosition;\n\n\t\t\t\tconst isTargetIndexEmptyDefaultBlock =\n\t\t\t\t\tblocksData[ targetIndex ]?.isUnmodifiedDefaultBlock;\n\n\t\t\t\tif (\n\t\t\t\t\tisZoomOut() &&\n\t\t\t\t\t! isTargetIndexEmptyDefaultBlock &&\n\t\t\t\t\toperation !== 'insert'\n\t\t\t\t) {\n\t\t\t\t\treturn;\n\t\t\t\t}\n\n\t\t\t\tif ( operation === 'group' ) {\n\t\t\t\t\tconst targetBlock = blocks[ targetIndex ];\n\t\t\t\t\tconst areAllImages = [\n\t\t\t\t\t\ttargetBlock.name,\n\t\t\t\t\t\t...draggedBlockNames,\n\t\t\t\t\t].every( ( name ) => name === 'core/image' );\n\t\t\t\t\tconst canInsertGalleryBlock = canInsertBlockType(\n\t\t\t\t\t\t'core/gallery',\n\t\t\t\t\t\ttargetRootClientId\n\t\t\t\t\t);\n\t\t\t\t\tconst areGroupableBlocks = isGroupable( [\n\t\t\t\t\t\ttargetBlock.clientId,\n\t\t\t\t\t\tgetDraggedBlockClientIds(),\n\t\t\t\t\t] );\n\t\t\t\t\tconst groupBlockVariations = getBlockVariations(\n\t\t\t\t\t\tgetGroupingBlockName(),\n\t\t\t\t\t\t'block'\n\t\t\t\t\t);\n\t\t\t\t\tconst canInsertRow =\n\t\t\t\t\t\tgroupBlockVariations &&\n\t\t\t\t\t\tgroupBlockVariations.find(\n\t\t\t\t\t\t\t( { name } ) => name === 'group-row'\n\t\t\t\t\t\t);\n\n\t\t\t\t\t// If the dragged blocks and the target block are all images,\n\t\t\t\t\t// check if it is creatable either a Row variation or a Gallery block.\n\t\t\t\t\tif (\n\t\t\t\t\t\tareAllImages &&\n\t\t\t\t\t\t! canInsertGalleryBlock &&\n\t\t\t\t\t\t( ! areGroupableBlocks || ! canInsertRow )\n\t\t\t\t\t) {\n\t\t\t\t\t\treturn;\n\t\t\t\t\t}\n\t\t\t\t\t// If the dragged blocks and the target block are not all images,\n\t\t\t\t\t// check if it is creatable a Row variation.\n\t\t\t\t\tif (\n\t\t\t\t\t\t! areAllImages &&\n\t\t\t\t\t\t( ! areGroupableBlocks || ! canInsertRow )\n\t\t\t\t\t) {\n\t\t\t\t\t\treturn;\n\t\t\t\t\t}\n\t\t\t\t}\n\n\t\t\t\tregistry.batch( () => {\n\t\t\t\t\tsetDropTarget( {\n\t\t\t\t\t\tindex: targetIndex,\n\t\t\t\t\t\toperation,\n\t\t\t\t\t\tnearestSide,\n\t\t\t\t\t} );\n\n\t\t\t\t\tconst insertionPointClientId = [\n\t\t\t\t\t\t'before',\n\t\t\t\t\t\t'after',\n\t\t\t\t\t].includes( operation )\n\t\t\t\t\t\t? parentBlockClientId\n\t\t\t\t\t\t: targetRootClientId;\n\n\t\t\t\t\tshowInsertionPoint( insertionPointClientId, targetIndex, {\n\t\t\t\t\t\toperation,\n\t\t\t\t\t\tnearestSide,\n\t\t\t\t\t} );\n\t\t\t\t} );\n\t\t\t},\n\t\t\t[\n\t\t\t\tisDragging,\n\t\t\t\tgetAllowedBlocks,\n\t\t\t\ttargetRootClientId,\n\t\t\t\tgetBlockNamesByClientId,\n\t\t\t\tgetDraggedBlockClientIds,\n\t\t\t\tgetBlockType,\n\t\t\t\tgetSectionRootClientId,\n\t\t\t\tisZoomOut,\n\t\t\t\tgetBlocks,\n\t\t\t\tgetBlockListSettings,\n\t\t\t\tdropZoneElement,\n\t\t\t\tparentBlockClientId,\n\t\t\t\tgetBlockIndex,\n\t\t\t\tregistry,\n\t\t\t\tstartDragging,\n\t\t\t\tshowInsertionPoint,\n\t\t\t\tcanInsertBlockType,\n\t\t\t\tisGroupable,\n\t\t\t\tgetBlockVariations,\n\t\t\t\tgetGroupingBlockName,\n\t\t\t]\n\t\t),\n\t\t200\n\t);\n\n\treturn useDropZone( {\n\t\tdropZoneElement,\n\t\tisDisabled,\n\t\tonDrop: onBlockDrop,\n\t\tonDragOver( event ) {\n\t\t\t// `currentTarget` is only available while the event is being\n\t\t\t// handled, so get it now and pass it to the thottled function.\n\t\t\t// https://developer.mozilla.org/en-US/docs/Web/API/Event/currentTarget\n\t\t\tthrottled( event, event.currentTarget.ownerDocument );\n\t\t},\n\t\tonDragLeave( event ) {\n\t\t\tconst { ownerDocument } = event.currentTarget;\n\n\t\t\t// If the drag event is leaving the drop zone and entering an insertion point,\n\t\t\t// do not hide the insertion point as it is conceptually within the dropzone.\n\t\t\tif (\n\t\t\t\tisInsertionPoint( event.relatedTarget, ownerDocument ) ||\n\t\t\t\tisInsertionPoint( event.target, ownerDocument )\n\t\t\t) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tthrottled.cancel();\n\t\t\thideInsertionPoint();\n\t\t},\n\t\tonDragEnd() {\n\t\t\tthrottled.cancel();\n\t\t\tstopDragging();\n\t\t\thideInsertionPoint();\n\t\t},\n\t} );\n}\n"],
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  "names": ["blocksStore", "blockEditorStore", "useOnBlockDrop", "getIsUnmodifiedDefaultBlock", "useDropZone"]
}