@react-aria/dnd - npm Package Compare versions

Comparing version 3.0.0-nightly.3575 to 3.0.0-nightly-641446f65-240905

dist/types.d.ts

@@ -1,6 +0,12 @@
-import React, { HTMLAttributes, RefObject, Key } from "react";
-import { DropActivateEvent, DropEnterEvent, DropEvent, DropExitEvent, DropMoveEvent, DropOperation, DragTypes, DroppableCollectionProps, DropTargetDelegate, KeyboardDelegate, DropTarget, DragEndEvent, DragItem, DragMoveEvent, DragPreviewRenderer, DragStartEvent, DOMAttributes, DropItem, Collection, Node } from "@react-types/shared";
+import { DirectoryDropItem, DropItem, FileDropItem, TextDropItem, DropActivateEvent, DropEnterEvent, DropEvent, DropExitEvent, DropMoveEvent, DropOperation, DragTypes, RefObject, DroppableCollectionProps, DropTargetDelegate, KeyboardDelegate, DropTarget, DragEndEvent, DragItem, DragMoveEvent, DragPreviewRenderer, DragStartEvent, Key, DOMAttributes, Direction, Node, Orientation } from "@react-types/shared";
+import { AriaButtonProps } from "@react-types/button";
+import React, { HTMLAttributes, JSX } from "react";
 import { DroppableCollectionState, DraggableCollectionState } from "@react-stately/dnd";
-import { AriaButtonProps } from "@react-types/button";
 export const DIRECTORY_DRAG_TYPE: unique symbol;
+/** Returns whether a drop item contains text data. */
+export function isTextDropItem(dropItem: DropItem): dropItem is TextDropItem;
+/** Returns whether a drop item is a file. */
+export function isFileDropItem(dropItem: DropItem): dropItem is FileDropItem;
+/** Returns whether a drop item is a directory. */
+export function isDirectoryDropItem(dropItem: DropItem): dropItem is DirectoryDropItem;
 /** @private */
@@ -10,3 +16,3 @@ export function isVirtualDragging(): boolean;
     /** A ref for the droppable element. */
-    ref: RefObject<HTMLElement>;
+    ref: RefObject<HTMLElement | null>;
     /**
@@ -33,2 +39,11 @@ * A function returning the drop operation to be performed when items matching the given types are dropped
     onDrop?: (e: DropEvent) => void;
+    /**
+     * Whether the item has an explicit focusable drop affordance to initiate accessible drag and drop mode.
+     * If true, the dropProps will omit these event handlers, and they will be applied to dropButtonProps instead.
+     */
+    hasDropButton?: boolean;
+    /**
+     * Whether the drop target is disabled. If true, the drop target will not accept any drops.
+     */
+    isDisabled?: boolean;
 }
@@ -40,2 +55,4 @@ export interface DropResult {
     isDropTarget: boolean;
+    /** Props for the explicit drop button affordance, if any. */
+    dropButtonProps?: AriaButtonProps;
 }
@@ -61,3 +78,3 @@ /**
  */
-export function useDroppableCollection(props: DroppableCollectionOptions, state: DroppableCollectionState, ref: RefObject<HTMLElement>): DroppableCollectionResult;
+export function useDroppableCollection(props: DroppableCollectionOptions, state: DroppableCollectionState, ref: RefObject<HTMLElement | null>): DroppableCollectionResult;
 export interface DroppableItemOptions {
@@ -76,3 +93,3 @@ /** The drop target represented by the item. */
  */
-export function useDroppableItem(options: DroppableItemOptions, state: DroppableCollectionState, ref: RefObject<HTMLElement>): DroppableItemResult;
+export function useDroppableItem(options: DroppableItemOptions, state: DroppableCollectionState, ref: RefObject<HTMLElement | null>): DroppableItemResult;
 export interface DropIndicatorProps {
@@ -96,3 +113,3 @@ /** The drop target that the drop indicator represents. */
  */
-export function useDropIndicator(props: DropIndicatorProps, state: DroppableCollectionState, ref: RefObject<HTMLElement>): DropIndicatorAria;
+export function useDropIndicator(props: DropIndicatorProps, state: DroppableCollectionState, ref: RefObject<HTMLElement | null>): DropIndicatorAria;
 export interface DragOptions {
@@ -108,3 +125,3 @@ /** Handler that is called when a drag operation is started. */
     /** The ref of the element that will be rendered as the drag preview while dragging. */
-    preview?: RefObject<DragPreviewRenderer>;
+    preview?: RefObject<DragPreviewRenderer | null>;
     /** Function that returns the drop operations that are allowed for the dragged items. If not provided, all drop operations are allowed. */
@@ -117,2 +134,6 @@ getAllowedDropOperations?: () => DropOperation[];
     hasDragButton?: boolean;
+    /**
+     * Whether the drag operation is disabled. If true, the element will not be draggable.
+     */
+    isDisabled?: boolean;
 }
@@ -164,3 +185,3 @@ export interface DragResult {
  */
-export function useDraggableCollection(props: DraggableCollectionOptions, state: DraggableCollectionState, ref: RefObject<HTMLElement>): void;
+export function useDraggableCollection(props: DraggableCollectionOptions, state: DraggableCollectionState, ref: RefObject<HTMLElement | null>): void;
 export interface DragPreviewProps {
@@ -179,2 +200,4 @@ children: (items: DragItem[]) => JSX.Element;
     onPaste?: (items: DropItem[]) => void;
+    /** Whether the clipboard is disabled. */
+    isDisabled?: boolean;
 }
@@ -190,4 +213,22 @@ export interface ClipboardResult {
 export function useClipboard(options: ClipboardProps): ClipboardResult;
+interface ListDropTargetDelegateOptions {
+    /**
+     * Whether the items are arranged in a stack or grid.
+     * @default 'stack'
+     */
+    layout?: 'stack' | 'grid';
+    /**
+     * The primary orientation of the items. Usually this is the
+     * direction that the collection scrolls.
+     * @default 'vertical'
+     */
+    orientation?: Orientation;
+    /**
+     * The horizontal layout direction.
+     * @default 'ltr'
+     */
+    direction?: Direction;
+}
 export class ListDropTargetDelegate implements DropTargetDelegate {
-    constructor(collection: Collection<Node<unknown>>, ref: RefObject<HTMLElement>);
+    constructor(collection: Iterable<Node<unknown>>, ref: RefObject<HTMLElement | null>, options?: ListDropTargetDelegateOptions);
     getDropTargetFromPoint(x: number, y: number, isValidDropTarget: (target: DropTarget) => boolean): DropTarget;
@@ -194,0 +235,0 @@ }

package.json

 {
   "name": "@react-aria/dnd",
-  "version": "3.0.0-nightly.3575+a13802d8b",
+  "version": "3.0.0-nightly-641446f65-240905",
   "description": "Spectrum UI components in React",
@@ -8,2 +8,7 @@ "license": "Apache-2.0",
   "module": "dist/module.js",
+  "exports": {
+    "types": "./dist/types.d.ts",
+    "import": "./dist/import.mjs",
+    "require": "./dist/main.js"
+  },
   "types": "dist/types.d.ts",
@@ -21,17 +26,16 @@ "source": "src/index.ts",
   "dependencies": {
-    "@babel/runtime": "^7.6.2",
-    "@internationalized/string": "3.0.1-nightly.3575+a13802d8b",
-    "@react-aria/i18n": "3.0.0-nightly.1875+a13802d8b",
-    "@react-aria/interactions": "3.0.0-nightly.1875+a13802d8b",
-    "@react-aria/live-announcer": "3.0.0-nightly.1875+a13802d8b",
-    "@react-aria/overlays": "3.0.0-nightly.1875+a13802d8b",
-    "@react-aria/utils": "3.0.0-nightly.1875+a13802d8b",
-    "@react-aria/visually-hidden": "3.0.0-nightly.1875+a13802d8b",
-    "@react-stately/dnd": "3.0.0-nightly.3575+a13802d8b",
-    "@react-types/button": "3.6.3-nightly.3575+a13802d8b",
-    "@react-types/shared": "3.0.0-nightly.1875+a13802d8b"
+    "@internationalized/string": "^3.0.0-nightly-641446f65-240905",
+    "@react-aria/i18n": "^3.0.0-nightly-641446f65-240905",
+    "@react-aria/interactions": "^3.0.0-nightly-641446f65-240905",
+    "@react-aria/live-announcer": "^3.0.0-nightly-641446f65-240905",
+    "@react-aria/overlays": "^3.0.0-nightly-641446f65-240905",
+    "@react-aria/utils": "^3.0.0-nightly-641446f65-240905",
+    "@react-stately/dnd": "^3.0.0-nightly-641446f65-240905",
+    "@react-types/button": "^3.0.0-nightly-641446f65-240905",
+    "@react-types/shared": "^3.0.0-nightly-641446f65-240905",
+    "@swc/helpers": "^0.5.0"
   },
   "peerDependencies": {
-    "react": "^16.8.0 || ^17.0.0-rc.1 || ^18.0.0",
-    "react-dom": "^16.8.0 || ^17.0.0-rc.1 || ^18.0.0"
+    "react": "^16.8.0 || ^17.0.0-rc.1 || ^18.0.0 || ^19.0.0",
+    "react-dom": "^16.8.0 || ^17.0.0-rc.1 || ^18.0.0 || ^19.0.0"
   },
@@ -41,3 +45,3 @@ "publishConfig": {
   },
-  "gitHead": "a13802d8be6f83af1450e56f7a88527b10d9cadf"
-}
+  "stableVersion": "3.7.2"
+}

src/DragManager.ts

@@ -16,3 +16,2 @@ /*
 import {DragEndEvent, DragItem, DropActivateEvent, DropEnterEvent, DropEvent, DropExitEvent, DropItem, DropOperation, DropTarget as DroppableCollectionTarget, FocusableElement} from '@react-types/shared';
-import {flushSync} from 'react-dom';
 import {getDragModality, getTypes} from './utils';
@@ -30,2 +29,3 @@ import {isVirtualClick, isVirtualPointerEvent} from '@react-aria/utils';
   element: FocusableElement,
+  preventFocusOnDrop?: boolean,
   getDropOperation?: (types: Set<string>, allowedOperations: DropOperation[]) => DropOperation,
@@ -263,3 +263,6 @@ onDropEnter?: (e: DropEnterEvent, dragTarget: DragTarget) => void,
 
-    let dropTarget = this.validDropTargets.find(target => target.element.contains(e.target as HTMLElement));
+    let dropTarget =
+      this.validDropTargets.find(target => target.element === e.target as HTMLElement) ||
+      this.validDropTargets.find(target => target.element.contains(e.target as HTMLElement));
+
     if (!dropTarget) {
@@ -484,3 +487,2 @@ if (this.currentDropTarget) {
 
-
     if (item !== this.currentDropItem) {
@@ -494,3 +496,3 @@ if (item && typeof this.currentDropTarget.onDropTargetEnter === 'function') {
 
-      // Annouce first drop target after drag start announcement finishes.
+      // Announce first drop target after drag start announcement finishes.
       // Otherwise, it will never get announced because drag start announcement is assertive.
@@ -506,2 +508,3 @@ if (!this.initialFocused) {
     this.teardown();
+    endDragging();
 
@@ -519,22 +522,14 @@ if (typeof this.dragTarget.onDragEnd === 'function') {
 
-    // Blur and re-focus the drop target so that the focus ring appears.
-    if (this.currentDropTarget) {
-      // Since we cancel all focus events in drag sessions, refire blur to make sure state gets updated so drag target doesn't think it's still focused
-      // i.e. When you from one list to another during a drag session, we need the blur to fire on the first list after the drag.
-      if (!this.dragTarget.element.contains(this.currentDropTarget.element)) {
-        this.dragTarget.element.dispatchEvent(new FocusEvent('blur'));
-        this.dragTarget.element.dispatchEvent(new FocusEvent('focusout', {bubbles: true}));
-      }
-      // Re-focus the focusedKey upon reorder. This requires a React rerender between blurring and focusing.
-      flushSync(() => {
-        this.currentDropTarget.element.blur();
-      });
-      this.currentDropTarget.element.focus();
+    if (this.currentDropTarget && !this.currentDropTarget.preventFocusOnDrop) {
+      // Re-trigger focus event on active element, since it will not have received it during dragging (see cancelEvent).
+      // This corrects state such as whether focus ring should appear.
+      // useDroppableCollection handles this itself, so this is only for standalone drop zones.
+      document.activeElement.dispatchEvent(new FocusEvent('focusin', {bubbles: true}));
     }
 
     this.setCurrentDropTarget(null);
-    endDragging();
   }
 
   cancel() {
+    this.setCurrentDropTarget(null);
     this.end();
@@ -541,0 +536,0 @@ if (!this.dragTarget.element.closest('[aria-hidden="true"]')) {

src/index.ts

@@ -68,1 +68,2 @@ /*
 export {isVirtualDragging} from './DragManager';
+export {isDirectoryDropItem, isFileDropItem, isTextDropItem} from './utils';

src/ListDropTargetDelegate.ts

@@ -1,15 +0,76 @@
-import {Collection, DropTarget, DropTargetDelegate, Node} from '@react-types/shared';
-import {RefObject} from 'react';
+import {Direction, DropTarget, DropTargetDelegate, Node, Orientation, RefObject} from '@react-types/shared';
 
+interface ListDropTargetDelegateOptions {
+  /**
+   * Whether the items are arranged in a stack or grid.
+   * @default 'stack'
+   */
+  layout?: 'stack' | 'grid',
+  /**
+   * The primary orientation of the items. Usually this is the
+   * direction that the collection scrolls.
+   * @default 'vertical'
+   */
+  orientation?: Orientation,
+  /**
+   * The horizontal layout direction.
+   * @default 'ltr'
+   */
+  direction?: Direction
+}
+
+// Terms used in the below code:
+//   * "Primary"   – The main layout direction. For stacks, this is the direction
+//                   that the stack is arranged in (e.g. horizontal or vertical).
+//                   For grids, this is the main scroll direction.
+//   * "Secondary" – The secondary layout direction. For stacks, there is no secondary
+//                   layout direction. For grids, this is the opposite of the primary direction.
+//   * "Flow"      – The flow direction of the items. For stacks, this is the the primary
+//                   direction. For grids, it is the secondary direction.
+
 export class ListDropTargetDelegate implements DropTargetDelegate {
-  private collection: Collection<Node<unknown>>;
-  private ref: RefObject<HTMLElement>;
+  private collection: Iterable<Node<unknown>>;
+  private ref: RefObject<HTMLElement | null>;
+  private layout: 'stack' | 'grid';
+  private orientation: Orientation;
+  private direction: Direction;
 
-  constructor(collection: Collection<Node<unknown>>, ref: RefObject<HTMLElement>) {
+  constructor(collection: Iterable<Node<unknown>>, ref: RefObject<HTMLElement | null>, options?: ListDropTargetDelegateOptions) {
     this.collection = collection;
     this.ref = ref;
+    this.layout = options?.layout || 'stack';
+    this.orientation = options?.orientation || 'vertical';
+    this.direction = options?.direction || 'ltr';
   }
 
+  private getPrimaryStart(rect: DOMRect) {
+    return this.orientation === 'horizontal' ? rect.left : rect.top;
+  }
+
+  private getPrimaryEnd(rect: DOMRect) {
+    return this.orientation === 'horizontal' ? rect.right : rect.bottom;
+  }
+
+  private getSecondaryStart(rect: DOMRect) {
+    return this.orientation === 'horizontal' ? rect.top : rect.left;
+  }
+
+  private getSecondaryEnd(rect: DOMRect) {
+    return this.orientation === 'horizontal' ? rect.bottom : rect.right;
+  }
+
+  private getFlowStart(rect: DOMRect) {
+    return this.layout === 'stack' ? this.getPrimaryStart(rect) : this.getSecondaryStart(rect);
+  }
+
+  private getFlowEnd(rect: DOMRect) {
+    return this.layout === 'stack' ? this.getPrimaryEnd(rect) : this.getSecondaryEnd(rect);
+  }
+
+  private getFlowSize(rect: DOMRect) {
+    return this.getFlowEnd(rect) - this.getFlowStart(rect);
+  }
+
   getDropTargetFromPoint(x: number, y: number, isValidDropTarget: (target: DropTarget) => boolean): DropTarget {
-    if (this.collection.size === 0) {
+    if (this.collection[Symbol.iterator]().next().done) {
       return {type: 'root'};
@@ -19,5 +80,12 @@ }
     let rect = this.ref.current.getBoundingClientRect();
-    x += rect.x;
-    y += rect.y;
+    let primary = this.orientation === 'horizontal' ? x : y;
+    let secondary = this.orientation === 'horizontal' ? y : x;
+    primary += this.getPrimaryStart(rect);
+    secondary += this.getSecondaryStart(rect);
 
+    let flow = this.layout === 'stack' ? primary : secondary;
+    let isPrimaryRTL = this.orientation === 'horizontal' && this.direction === 'rtl';
+    let isSecondaryRTL = this.layout === 'grid' && this.orientation === 'vertical' && this.direction === 'rtl';
+    let isFlowRTL = this.layout === 'stack' ? isPrimaryRTL : isSecondaryRTL;
+
     let elements = this.ref.current.querySelectorAll('[data-key]');
@@ -31,3 +99,7 @@ let elementMap = new Map<string, HTMLElement>();
 
-    let items = [...this.collection];
+    // TODO: assume that only item type items are valid drop targets. This is to prevent a crash when dragging over the loader
+    // row since it doesn't have a data-key set on it. Will eventually need to handle the case with drag and drop and loaders located between rows aka tree.
+    // Can see https://github.com/adobe/react-spectrum/pull/4210/files#diff-21e555e0c597a28215e36137f5be076a65a1e1456c92cd0fdd60f866929aae2a for additional logic
+    // that may need to happen then
+    let items = [...this.collection].filter(item => item.type === 'item');
     let low = 0;
@@ -40,7 +112,18 @@ let high = items.length;
       let rect = element.getBoundingClientRect();
+      let update = (isGreater: boolean) => {
+        if (isGreater) {
+          low = mid + 1;
+        } else {
+          high = mid;
+        }
+      };
 
-      if (y < rect.top) {
-        high = mid;
-      } else if (y > rect.bottom) {
-        low = mid + 1;
+      if (primary < this.getPrimaryStart(rect)) {
+        update(isPrimaryRTL);
+      } else if (primary > this.getPrimaryEnd(rect)) {
+        update(!isPrimaryRTL);
+      } else if (secondary < this.getSecondaryStart(rect)) {
+        update(isSecondaryRTL);
+      } else if (secondary > this.getSecondaryEnd(rect)) {
+        update(!isSecondaryRTL);
       } else {
@@ -55,15 +138,15 @@ let target: DropTarget = {
           // Otherwise, if dropping on the item is accepted, try the before/after positions if within 5px
-          // of the top or bottom of the item.
-          if (y <= rect.top + 5 && isValidDropTarget({...target, dropPosition: 'before'})) {
-            target.dropPosition = 'before';
-          } else if (y >= rect.bottom - 5 && isValidDropTarget({...target, dropPosition: 'after'})) {
-            target.dropPosition = 'after';
+          // of the start or end of the item.
+          if (flow <= this.getFlowStart(rect) + 5 && isValidDropTarget({...target, dropPosition: 'before'})) {
+            target.dropPosition = isFlowRTL ? 'after' : 'before';
+          } else if (flow >= this.getFlowEnd(rect) - 5 && isValidDropTarget({...target, dropPosition: 'after'})) {
+            target.dropPosition = isFlowRTL ? 'before' : 'after';
           }
         } else {
-          // If dropping on the item isn't accepted, try the target before or after depending on the y position.
-          let midY = rect.top + rect.height / 2;
-          if (y <= midY && isValidDropTarget({...target, dropPosition: 'before'})) {
-            target.dropPosition = 'before';
-          } else if (y >= midY && isValidDropTarget({...target, dropPosition: 'after'})) {
-            target.dropPosition = 'after';
+          // If dropping on the item isn't accepted, try the target before or after depending on the position.
+          let mid = this.getFlowStart(rect) + this.getFlowSize(rect) / 2;
+          if (flow <= mid && isValidDropTarget({...target, dropPosition: 'before'})) {
+            target.dropPosition = isFlowRTL ? 'after' : 'before';
+          } else if (flow >= mid && isValidDropTarget({...target, dropPosition: 'after'})) {
+            target.dropPosition = isFlowRTL ? 'before' : 'after';
           }
@@ -80,7 +163,7 @@ }
 
-    if (Math.abs(y - rect.top) < Math.abs(y - rect.bottom)) {
+    if (primary < this.getPrimaryStart(rect) || Math.abs(flow - this.getFlowStart(rect)) < Math.abs(flow - this.getFlowEnd(rect))) {
       return {
         type: 'item',
         key: item.key,
-        dropPosition: 'before'
+        dropPosition: isFlowRTL ? 'after' : 'before'
       };
@@ -92,5 +175,5 @@ }
       key: item.key,
-      dropPosition: 'after'
+      dropPosition: isFlowRTL ? 'before' : 'after'
     };
   }
 }

src/useAutoScroll.ts

@@ -13,12 +13,18 @@ /*
 
-import {getScrollParent, isIOS, isWebKit} from '@react-aria/utils';
-import {RefObject, useCallback, useEffect, useRef} from 'react';
+import {getScrollParent, isIOS, isScrollable, isWebKit} from '@react-aria/utils';
+import {RefObject} from '@react-types/shared';
+import {useCallback, useEffect, useRef} from 'react';
 
 const AUTOSCROLL_AREA_SIZE = 20;
 
-export function useAutoScroll(ref: RefObject<Element>) {
+export function useAutoScroll(ref: RefObject<Element | null>) {
   let scrollableRef = useRef<Element>(null);
+  let scrollableX = useRef(true);
+  let scrollableY = useRef(true);
   useEffect(() => {
     if (ref.current) {
-      scrollableRef.current = getScrollParent(ref.current);
+      scrollableRef.current = isScrollable(ref.current) ? ref.current : getScrollParent(ref.current);
+      let style = window.getComputedStyle(scrollableRef.current);
+      scrollableX.current = /(auto|scroll)/.test(style.overflowX);
+      scrollableY.current = /(auto|scroll)/.test(style.overflowY);
     }
@@ -33,5 +39,19 @@ }, [ref]);
 
+  useEffect(() => {
+    return () => {
+      if (state.timer) {
+        cancelAnimationFrame(state.timer);
+        state.timer = null;
+      }
+    };
+  // state will become a new object, so it's ok to use in the dependency array for unmount
+  }, [state]);
+
   let scroll = useCallback(() => {
-    scrollableRef.current.scrollLeft += state.dx;
-    scrollableRef.current.scrollTop += state.dy;
+    if (scrollableX.current) {
+      scrollableRef.current.scrollLeft += state.dx;
+    }
+    if (scrollableY.current) {
+      scrollableRef.current.scrollTop += state.dy;
+    }
 
@@ -38,0 +58,0 @@ if (state.timer) {

src/useClipboard.ts

@@ -13,3 +13,3 @@ /*
 
-import {chain} from '@react-aria/utils';
+import {chain, useEffectEvent} from '@react-aria/utils';
 import {DOMAttributes, DragItem, DropItem} from '@react-types/shared';
@@ -28,3 +28,5 @@ import {readFromDataTransfer, writeToDataTransfer} from './utils';
   /** Handler that is called when the user triggers a paste interaction. */
-  onPaste?: (items: DropItem[]) => void
+  onPaste?: (items: DropItem[]) => void,
+  /** Whether the clipboard is disabled. */
+  isDisabled?: boolean
 }
@@ -69,5 +71,3 @@
 export function useClipboard(options: ClipboardProps): ClipboardResult {
-  let ref = useRef(options);
-  ref.current = options;
-
+  let {isDisabled} = options;
   let isFocusedRef = useRef(false);
@@ -80,60 +80,57 @@ let {focusProps} = useFocus({
 
-  useEffect(() => {
-    let onBeforeCopy = (e: ClipboardEvent) => {
-      // Enable the "Copy" menu item in Safari if this element is focused and copying is supported.
-      let options = ref.current;
-      if (isFocusedRef.current && options.getItems) {
-        e.preventDefault();
-      }
-    };
+  let onBeforeCopy = useEffectEvent((e: ClipboardEvent) => {
+    // Enable the "Copy" menu item in Safari if this element is focused and copying is supported.
+    if (isFocusedRef.current && options.getItems) {
+      e.preventDefault();
+    }
+  });
 
-    let onCopy = (e: ClipboardEvent) => {
-      let options = ref.current;
-      if (!isFocusedRef.current || !options.getItems) {
-        return;
-      }
+  let onCopy = useEffectEvent((e: ClipboardEvent) => {
+    if (!isFocusedRef.current || !options.getItems) {
+      return;
+    }
 
+    e.preventDefault();
+    writeToDataTransfer(e.clipboardData, options.getItems());
+    options.onCopy?.();
+  });
+
+  let onBeforeCut = useEffectEvent((e: ClipboardEvent) => {
+    if (isFocusedRef.current && options.onCut && options.getItems) {
       e.preventDefault();
-      writeToDataTransfer(e.clipboardData, options.getItems());
-      options.onCopy?.();
-    };
+    }
+  });
 
-    let onBeforeCut = (e: ClipboardEvent) => {
-      let options = ref.current;
-      if (isFocusedRef.current && options.onCut && options.getItems) {
-        e.preventDefault();
-      }
-    };
+  let onCut = useEffectEvent((e: ClipboardEvent) => {
+    if (!isFocusedRef.current || !options.onCut || !options.getItems) {
+      return;
+    }
 
-    let onCut = (e: ClipboardEvent) => {
-      let options = ref.current;
-      if (!isFocusedRef.current || !options.onCut || !options.getItems) {
-        return;
-      }
+    e.preventDefault();
+    writeToDataTransfer(e.clipboardData, options.getItems());
+    options.onCut();
+  });
 
+  let onBeforePaste = useEffectEvent((e: ClipboardEvent) => {
+    // Unfortunately, e.clipboardData.types is not available in this event so we always
+    // have to enable the Paste menu item even if the type of data is unsupported.
+    if (isFocusedRef.current && options.onPaste) {
       e.preventDefault();
-      writeToDataTransfer(e.clipboardData, options.getItems());
-      options.onCut();
-    };
+    }
+  });
 
-    let onBeforePaste = (e: ClipboardEvent) => {
-      let options = ref.current;
-      // Unfortunately, e.clipboardData.types is not available in this event so we always
-      // have to enable the Paste menu item even if the type of data is unsupported.
-      if (isFocusedRef.current && options.onPaste) {
-        e.preventDefault();
-      }
-    };
+  let onPaste = useEffectEvent((e: ClipboardEvent) => {
+    if (!isFocusedRef.current || !options.onPaste) {
+      return;
+    }
 
-    let onPaste = (e: ClipboardEvent) => {
-      let options = ref.current;
-      if (!isFocusedRef.current || !options.onPaste) {
-        return;
-      }
+    e.preventDefault();
+    let items = readFromDataTransfer(e.clipboardData);
+    options.onPaste(items);
+  });
 
-      e.preventDefault();
-      let items = readFromDataTransfer(e.clipboardData);
-      options.onPaste(items);
-    };
-
+  useEffect(() => {
+    if (isDisabled) {
+      return;
+    }
     return chain(
@@ -147,3 +144,3 @@ addGlobalEventListener('beforecopy', onBeforeCopy),
     );
-  }, []);
+  }, [isDisabled, onBeforeCopy, onCopy, onBeforeCut, onCut, onBeforePaste, onPaste]);
 
@@ -150,0 +147,0 @@ return {

src/useDrag.ts

@@ -14,4 +14,4 @@ /*
 import {AriaButtonProps} from '@react-types/button';
-import {DragEndEvent, DragItem, DragMoveEvent, DragPreviewRenderer, DragStartEvent, DropOperation, PressEvent} from '@react-types/shared';
-import {DragEvent, HTMLAttributes, RefObject, useRef, useState} from 'react';
+import {DragEndEvent, DragItem, DragMoveEvent, DragPreviewRenderer, DragStartEvent, DropOperation, PressEvent, RefObject} from '@react-types/shared';
+import {DragEvent, HTMLAttributes, useRef, useState} from 'react';
 import * as DragManager from './DragManager';
@@ -35,3 +35,3 @@ import {DROP_EFFECT_TO_DROP_OPERATION, DROP_OPERATION, EFFECT_ALLOWED} from './constants';
   /** The ref of the element that will be rendered as the drag preview while dragging. */
-  preview?: RefObject<DragPreviewRenderer>,
+  preview?: RefObject<DragPreviewRenderer | null>,
   /** Function that returns the drop operations that are allowed for the dragged items. If not provided, all drop operations are allowed. */
@@ -43,3 +43,7 @@ getAllowedDropOperations?: () => DropOperation[],
    */
-  hasDragButton?: boolean
+  hasDragButton?: boolean,
+  /**
+   * Whether the drag operation is disabled. If true, the element will not be draggable.
+   */
+  isDisabled?: boolean
 }
@@ -76,4 +80,4 @@
 export function useDrag(options: DragOptions): DragResult {
-  let {hasDragButton} = options;
-  let stringFormatter = useLocalizedStringFormatter(intlMessages);
+  let {hasDragButton, isDisabled} = options;
+  let stringFormatter = useLocalizedStringFormatter(intlMessages, '@react-aria/dnd');
   let state = useRef({
@@ -86,3 +90,3 @@ options,
   let isDraggingRef = useRef(false);
-  let [, setDraggingState] = useState(false);
+  let [isDragging, setDraggingState] = useState(false);
   let setDragging = (isDragging) => {
@@ -100,2 +104,5 @@ isDraggingRef.current = isDragging;
 
+    // Prevent the drag event from propagating to any parent draggables
+    e.stopPropagation();
+
     // If this drag was initiated by a mobile screen reader (e.g. VoiceOver or TalkBack), enter virtual dragging mode.
@@ -149,3 +156,3 @@ if (modalityOnPointerDown.current === 'virtual') {
         // Rounding height to an even number prevents blurry preview seen on some screens
-        let height = 2 * Math.round(rect.height / 2);
+        let height = 2 * Math.round(size.height / 2);
         node.style.height = `${height}px`;
@@ -159,9 +166,6 @@
     addGlobalListener(window, 'drop', e => {
-      if (!DragManager.isValidDropTarget(e.target as Element)) {
-        e.preventDefault();
-        e.stopPropagation();
-        throw new Error('Drags initiated from the React Aria useDrag hook may only be dropped on a target created with useDrop. This ensures that a keyboard and screen reader accessible alternative is available.');
-      }
-    }, {capture: true, once: true});
-
+      e.preventDefault();
+      e.stopPropagation();
+      console.warn('Drags initiated from the React Aria useDrag hook may only be dropped on a target created with useDrop. This ensures that a keyboard and screen reader accessible alternative is available.');
+    }, {once: true});
     state.x = e.clientX;
@@ -178,2 +182,5 @@ state.y = e.clientY;
   let onDrag = (e: DragEvent) => {
+    // Prevent the drag event from propagating to any parent draggables
+    e.stopPropagation();
+
     if (e.clientX === state.x && e.clientY === state.y) {
@@ -196,2 +203,5 @@ return;
   let onDragEnd = (e: DragEvent) => {
+    // Prevent the drag event from propagating to any parent draggables
+    e.stopPropagation();
+
     if (typeof options.onDragEnd === 'function') {
@@ -278,3 +288,3 @@ let event: DragEndEvent = {
   let modality = useDragModality();
-  let message = !isDraggingRef.current ? MESSAGES[modality].start : MESSAGES[modality].end;
+  let message = !isDragging ? MESSAGES[modality].start : MESSAGES[modality].end;
 
@@ -340,2 +350,12 @@ let descriptionProps = useDescription(stringFormatter.format(message));
 
+  if (isDisabled) {
+    return {
+      dragProps: {
+        draggable: 'false'
+      },
+      dragButtonProps: {},
+      isDragging: false
+    };
+  }
+
   return {
@@ -353,4 +373,4 @@ dragProps: {
     },
-    isDragging: isDraggingRef.current
+    isDragging
   };
 }

src/useDraggableCollection.ts

@@ -15,3 +15,3 @@ /*
 import {globalDndState, setDraggingCollectionRef} from './utils';
-import {RefObject} from 'react';
+import {RefObject} from '@react-types/shared';
 
@@ -24,3 +24,3 @@ export interface DraggableCollectionOptions {}
  */
-export function useDraggableCollection(props: DraggableCollectionOptions, state: DraggableCollectionState, ref: RefObject<HTMLElement>): void {
+export function useDraggableCollection(props: DraggableCollectionOptions, state: DraggableCollectionState, ref: RefObject<HTMLElement | null>): void {
   // Update global DnD state if this keys within this collection are dragged
@@ -27,0 +27,0 @@ let {draggingCollectionRef} = globalDndState;

src/useDraggableItem.ts

@@ -14,10 +14,10 @@ /*
 import {AriaButtonProps} from '@react-types/button';
-import {clearGlobalDnDState, isInternalDropOperation, setDraggingKeys} from './utils';
+import {clearGlobalDnDState, isInternalDropOperation, setDraggingKeys, useDragModality} from './utils';
 import {DraggableCollectionState} from '@react-stately/dnd';
-import {HTMLAttributes, Key} from 'react';
+import {HTMLAttributes} from 'react';
 // @ts-ignore
 import intlMessages from '../intl/*.json';
+import {Key} from '@react-types/shared';
 import {useDescription} from '@react-aria/utils';
 import {useDrag} from './useDrag';
-import {useDragModality} from './utils';
 import {useLocalizedStringFormatter} from '@react-aria/i18n';
@@ -68,4 +68,4 @@
 export function useDraggableItem(props: DraggableItemProps, state: DraggableCollectionState): DraggableItemResult {
-  let stringFormatter = useLocalizedStringFormatter(intlMessages);
-  let isDisabled = state.selectionManager.isDisabled(props.key);
+  let stringFormatter = useLocalizedStringFormatter(intlMessages, '@react-aria/dnd');
+  let isDisabled = state.isDisabled || state.selectionManager.isDisabled(props.key);
   let {dragProps, dragButtonProps} = useDrag({
@@ -97,4 +97,4 @@ getItems() {
   let isSelected = numKeysForDrag > 1 && state.selectionManager.isSelected(props.key);
-  let dragButtonLabel: string;
-  let description: string;
+  let dragButtonLabel: string | undefined;
+  let description: string | undefined;
 
@@ -122,3 +122,4 @@ // Override description to include selected item count.
     } else {
-      dragButtonLabel = stringFormatter.format('dragItem', {itemText: item?.textValue ?? ''});
+      let itemText = state.collection.getTextValue?.(props.key) ?? item?.textValue ?? '';
+      dragButtonLabel = stringFormatter.format('dragItem', {itemText});
     }
@@ -142,3 +143,3 @@ }
       if (e.altKey) {
-        onKeyDownCapture(e);
+        onKeyDownCapture?.(e);
       }
@@ -149,3 +150,3 @@ };
       if (e.altKey) {
-        onKeyUpCapture(e);
+        onKeyUpCapture?.(e);
       }
@@ -152,0 +153,0 @@ };

src/useDrop.ts

@@ -13,8 +13,9 @@ /*
 
-import {DragEvent, HTMLAttributes, RefObject,  useRef, useState} from 'react';
+import {AriaButtonProps} from '@react-types/button';
+import {DragEvent, HTMLAttributes, useRef, useState} from 'react';
 import * as DragManager from './DragManager';
 import {DragTypes, globalAllowedDropOperations, globalDndState, readFromDataTransfer, setGlobalDnDState, setGlobalDropEffect} from './utils';
 import {DROP_EFFECT_TO_DROP_OPERATION, DROP_OPERATION, DROP_OPERATION_ALLOWED, DROP_OPERATION_TO_DROP_EFFECT} from './constants';
-import {DropActivateEvent, DropEnterEvent, DropEvent, DropExitEvent, DropMoveEvent, DropOperation, DragTypes as IDragTypes} from '@react-types/shared';
-import {isIPad, isMac, useLayoutEffect} from '@react-aria/utils';
+import {DropActivateEvent, DropEnterEvent, DropEvent, DropExitEvent, DropMoveEvent, DropOperation, DragTypes as IDragTypes, RefObject} from '@react-types/shared';
+import {isIPad, isMac, useEffectEvent, useLayoutEffect} from '@react-aria/utils';
 import {useVirtualDrop} from './useVirtualDrop';
@@ -24,3 +25,3 @@
   /** A ref for the droppable element. */
-  ref: RefObject<HTMLElement>,
+  ref: RefObject<HTMLElement | null>,
   /**
@@ -46,3 +47,12 @@ * A function returning the drop operation to be performed when items matching the given types are dropped
   /** Handler that is called when a valid drag is dropped on the drop target. */
-  onDrop?: (e: DropEvent) => void
+  onDrop?: (e: DropEvent) => void,
+  /**
+   * Whether the item has an explicit focusable drop affordance to initiate accessible drag and drop mode.
+   * If true, the dropProps will omit these event handlers, and they will be applied to dropButtonProps instead.
+   */
+  hasDropButton?: boolean,
+  /**
+   * Whether the drop target is disabled. If true, the drop target will not accept any drops.
+   */
+  isDisabled?: boolean
 }
@@ -54,3 +64,5 @@
   /** Whether the drop target is currently focused or hovered. */
-  isDropTarget: boolean
+  isDropTarget: boolean,
+  /** Props for the explicit drop button affordance, if any. */
+  dropButtonProps?: AriaButtonProps
 }
@@ -65,2 +77,3 @@
 export function useDrop(options: DropOptions): DropResult {
+  let {hasDropButton, isDisabled} = options;
   let [isDropTarget, setDropTarget] = useState(false);
@@ -276,37 +289,66 @@ let state = useRef({
 
-  let optionsRef = useRef(options);
-  optionsRef.current = options;
+  let onDropEnter = useEffectEvent((e: DropEnterEvent) => {
+    if (typeof options.onDropEnter === 'function') {
+      options.onDropEnter(e);
+    }
+  });
 
-  useLayoutEffect(() => DragManager.registerDropTarget({
-    element: optionsRef.current.ref.current,
-    getDropOperation: optionsRef.current.getDropOperation,
-    onDropEnter(e) {
-      setDropTarget(true);
-      if (typeof optionsRef.current.onDropEnter === 'function') {
-        optionsRef.current.onDropEnter(e);
-      }
-    },
-    onDropExit(e) {
-      setDropTarget(false);
-      if (typeof optionsRef.current.onDropExit === 'function') {
-        optionsRef.current.onDropExit(e);
-      }
-    },
-    onDrop(e) {
-      if (typeof optionsRef.current.onDrop === 'function') {
-        optionsRef.current.onDrop(e);
-      }
-    },
-    onDropActivate(e) {
-      if (typeof optionsRef.current.onDropActivate === 'function') {
-        optionsRef.current.onDropActivate(e);
-      }
+  let onDropExit = useEffectEvent((e: DropExitEvent) => {
+    if (typeof options.onDropExit === 'function') {
+      options.onDropExit(e);
     }
-  }), [optionsRef]);
+  });
 
+  let onDropActivate = useEffectEvent((e: DropActivateEvent) => {
+    if (typeof options.onDropActivate === 'function') {
+      options.onDropActivate(e);
+    }
+  });
+
+  let onKeyboardDrop = useEffectEvent((e: DropEvent) => {
+    if (typeof options.onDrop === 'function') {
+      options.onDrop(e);
+    }
+  });
+
+  let getDropOperationKeyboard = useEffectEvent((types: IDragTypes, allowedOperations: DropOperation[]) => {
+    if (options.getDropOperation) {
+      return options.getDropOperation(types, allowedOperations);
+    }
+
+    return allowedOperations[0];
+  });
+
+  let {ref} = options;
+  useLayoutEffect(() => {
+    if (isDisabled) {
+      return;
+    }
+    return DragManager.registerDropTarget({
+      element: ref.current,
+      getDropOperation: getDropOperationKeyboard,
+      onDropEnter(e) {
+        setDropTarget(true);
+        onDropEnter(e);
+      },
+      onDropExit(e) {
+        setDropTarget(false);
+        onDropExit(e);
+      },
+      onDrop: onKeyboardDrop,
+      onDropActivate
+    });
+  }, [isDisabled, ref, getDropOperationKeyboard, onDropEnter, onDropExit, onKeyboardDrop, onDropActivate]);
+
   let {dropProps} = useVirtualDrop();
-
+  if (isDisabled) {
+    return {
+      dropProps: {},
+      dropButtonProps: {isDisabled: true},
+      isDropTarget: false
+    };
+  }
   return {
     dropProps: {
-      ...dropProps,
+      ...(!hasDropButton && dropProps),
       onDragEnter,
@@ -317,2 +359,3 @@ onDragOver,
     },
+    dropButtonProps: {...(hasDropButton && dropProps)},
     isDropTarget
@@ -319,0 +362,0 @@ };

src/useDropIndicator.ts

@@ -15,5 +15,5 @@ /*
 import {DroppableCollectionState} from '@react-stately/dnd';
-import {DropTarget} from '@react-types/shared';
+import {DropTarget, Key, RefObject} from '@react-types/shared';
 import {getDroppableCollectionId} from './utils';
-import {HTMLAttributes, Key, RefObject} from 'react';
+import {HTMLAttributes} from 'react';
 // @ts-ignore
@@ -45,11 +45,11 @@ import intlMessages from '../intl/*.json';
  */
-export function useDropIndicator(props: DropIndicatorProps, state: DroppableCollectionState, ref: RefObject<HTMLElement>): DropIndicatorAria {
+export function useDropIndicator(props: DropIndicatorProps, state: DroppableCollectionState, ref: RefObject<HTMLElement | null>): DropIndicatorAria {
   let {target} = props;
   let {collection} = state;
 
-  let stringFormatter = useLocalizedStringFormatter(intlMessages);
+  let stringFormatter = useLocalizedStringFormatter(intlMessages, '@react-aria/dnd');
   let dragSession = DragManager.useDragSession();
   let {dropProps} = useDroppableItem(props, state, ref);
   let id = useId();
-  let getText = (key: Key) => collection.getItem(key)?.textValue;
+  let getText = (key: Key) => collection.getTextValue?.(key) ?? collection.getItem(key)?.textValue;
 
@@ -66,9 +66,16 @@ let label = '';
   } else {
-    let before = target.dropPosition === 'before'
-      ? collection.getKeyBefore(target.key)
-      : target.key;
-    let after = target.dropPosition === 'after'
-      ? collection.getKeyAfter(target.key)
-      : target.key;
+    let before: Key | null;
+    let after: Key | null;
+    if (collection.getFirstKey() === target.key && target.dropPosition === 'before') {
+      before = null;
+    } else {
+      before = target.dropPosition === 'before' ? collection.getKeyBefore(target.key) : target.key;
+    }
 
+    if (collection.getLastKey() === target.key && target.dropPosition === 'after') {
+      after = null;
+    } else {
+      after = target.dropPosition === 'after' ? collection.getKeyAfter(target.key) : target.key;
+    }
+
     if (before && after) {
@@ -75,0 +82,0 @@ label = stringFormatter.format('insertBetween', {

src/useDroppableCollection.ts

@@ -31,8 +31,10 @@ /*
   DropTargetDelegate,
+  Key,
   KeyboardDelegate,
-  Node
+  Node,
+  RefObject
 } from '@react-types/shared';
 import * as DragManager from './DragManager';
 import {DroppableCollectionState} from '@react-stately/dnd';
-import {HTMLAttributes, Key, RefObject, useCallback, useEffect, useRef} from 'react';
+import {HTMLAttributes, useCallback, useEffect, useRef} from 'react';
 import {mergeProps, useId, useLayoutEffect} from '@react-aria/utils';
@@ -42,2 +44,3 @@ import {setInteractionModality} from '@react-aria/interactions';
 import {useDrop} from './useDrop';
+import {useLocale} from '@react-aria/i18n';
 
@@ -60,2 +63,5 @@ export interface DroppableCollectionOptions extends DroppableCollectionProps {
   selectedKeys: Set<Key>,
+  target: DropTarget,
+  draggingKeys: Set<Key>,
+  isInternal: boolean,
   timeout: ReturnType<typeof setTimeout>
@@ -65,2 +71,3 @@ }
 const DROP_POSITIONS: DropPosition[] = ['before', 'on', 'after'];
+const DROP_POSITIONS_RTL: DropPosition[] = ['after', 'on', 'before'];
 
@@ -71,3 +78,3 @@ /**
  */
-export function useDroppableCollection(props: DroppableCollectionOptions, state: DroppableCollectionState, ref: RefObject<HTMLElement>): DroppableCollectionResult {
+export function useDroppableCollection(props: DroppableCollectionOptions, state: DroppableCollectionState, ref: RefObject<HTMLElement | null>): DroppableCollectionResult {
   let localState = useRef({
@@ -218,15 +225,89 @@ props,
   let droppingState = useRef<DroppingState>(null);
-  let onDrop = useCallback((e: DropEvent, target: DropTarget) => {
+  let updateFocusAfterDrop = useCallback(() => {
     let {state} = localState;
+    if (droppingState.current) {
+      let {
+        target,
+        collection: prevCollection,
+        selectedKeys: prevSelectedKeys,
+        focusedKey: prevFocusedKey,
+        isInternal,
+        draggingKeys
+      } = droppingState.current;
+      
+      // If an insert occurs during a drop, we want to immediately select these items to give
+      // feedback to the user that a drop occurred. Only do this if the selection didn't change
+      // since the drop started so we don't override if the user or application did something.
+      if (
+        state.collection.size > prevCollection.size &&
+        state.selectionManager.isSelectionEqual(prevSelectedKeys)
+      ) {
+        let newKeys = new Set<Key>();
+        for (let key of state.collection.getKeys()) {
+          if (!prevCollection.getItem(key)) {
+            newKeys.add(key);
+          }
+        }
 
-    // Focus the collection.
-    state.selectionManager.setFocused(true);
+        state.selectionManager.setSelectedKeys(newKeys);
 
+        // If the focused item didn't change since the drop occurred, also focus the first
+        // inserted item. If selection is disabled, then also show the focus ring so there
+        // is some indication that items were added.
+        if (state.selectionManager.focusedKey === prevFocusedKey) {
+          let first = newKeys.keys().next().value;
+          let item = state.collection.getItem(first);
+
+          // If this is a cell, focus the parent row.
+          if (item?.type === 'cell') {
+            first = item.parentKey;
+          }
+
+          state.selectionManager.setFocusedKey(first);
+
+          if (state.selectionManager.selectionMode === 'none') {
+            setInteractionModality('keyboard');
+          }
+        }
+      } else if (
+        state.selectionManager.focusedKey === prevFocusedKey &&
+        isInternal &&
+        target.type === 'item' &&
+        target.dropPosition !== 'on' &&
+        draggingKeys.has(state.collection.getItem(prevFocusedKey)?.parentKey)
+      ) {
+        // Focus row instead of cell when reordering.
+        state.selectionManager.setFocusedKey(state.collection.getItem(prevFocusedKey).parentKey);
+        setInteractionModality('keyboard');
+      } else if (
+        state.selectionManager.focusedKey === prevFocusedKey &&
+        target.type === 'item' && 
+        target.dropPosition === 'on' && 
+        state.collection.getItem(target.key) != null
+      ) {
+        // If focus didn't move already (e.g. due to an insert), and the user dropped on an item,
+        // focus that item and show the focus ring to give the user feedback that the drop occurred.
+        // Also show the focus ring if the focused key is not selected, e.g. in case of a reorder.
+        state.selectionManager.setFocusedKey(target.key);
+        setInteractionModality('keyboard');
+      } else if (!state.selectionManager.isSelected(state.selectionManager.focusedKey)) {
+        setInteractionModality('keyboard');
+      }
+
+      state.selectionManager.setFocused(true);
+    }
+  }, [localState]);
+
+  let onDrop = useCallback((e: DropEvent, target: DropTarget) => {
+    let {state} = localState;
+    
     // Save some state of the collection/selection before the drop occurs so we can compare later.
-    let focusedKey = state.selectionManager.focusedKey;
     droppingState.current = {
       timeout: null,
-      focusedKey,
+      focusedKey: state.selectionManager.focusedKey,
       collection: state.collection,
-      selectedKeys: state.selectionManager.selectedKeys
+      selectedKeys: state.selectionManager.selectedKeys,
+      draggingKeys: globalDndState.draggingKeys,
+      isInternal: isInternalDropOperation(ref),
+      target
     };
@@ -245,22 +326,9 @@
     // Wait for a short time period after the onDrop is called to allow the data to be read asynchronously
-    // and for React to re-render. If an insert occurs during this time, it will be selected/focused below.
-    // If items are not "immediately" inserted by the onDrop handler, the application will need to handle
-    // selecting and focusing those items themselves.
+    // and for React to re-render. If the collection didn't already change during this time (handled below),
+    // update the focused key here.
     droppingState.current.timeout = setTimeout(() => {
-      // If focus didn't move already (e.g. due to an insert), and the user dropped on an item,
-      // focus that item and show the focus ring to give the user feedback that the drop occurred.
-      // Also show the focus ring if the focused key is not selected, e.g. in case of a reorder.
-      let {state} = localState;
-
-      if (target.type === 'item' && target.dropPosition === 'on' && state.collection.getItem(target.key) != null) {
-        state.selectionManager.setFocusedKey(target.key);
-        state.selectionManager.setFocused(true);
-        setInteractionModality('keyboard');
-      } else if (!state.selectionManager.isSelected(focusedKey)) {
-        setInteractionModality('keyboard');
-      }
-
+      updateFocusAfterDrop();
       droppingState.current = null;
     }, 50);
-  }, [localState, defaultOnDrop]);
+  }, [localState, defaultOnDrop, ref, updateFocusAfterDrop]);
 
@@ -277,38 +345,11 @@ // eslint-disable-next-line arrow-body-style
   useLayoutEffect(() => {
-    // If an insert occurs during a drop, we want to immediately select these items to give
-    // feedback to the user that a drop occurred. Only do this if the selection didn't change
-    // since the drop started so we don't override if the user or application did something.
-    if (
-      droppingState.current &&
-      state.selectionManager.isFocused &&
-      state.collection.size > droppingState.current.collection.size &&
-      state.selectionManager.isSelectionEqual(droppingState.current.selectedKeys)
-    ) {
-      let newKeys = new Set<Key>();
-      for (let key of state.collection.getKeys()) {
-        if (!droppingState.current.collection.getItem(key)) {
-          newKeys.add(key);
-        }
-      }
-
-      state.selectionManager.setSelectedKeys(newKeys);
-
-      // If the focused item didn't change since the drop occurred, also focus the first
-      // inserted item. If selection is disabled, then also show the focus ring so there
-      // is some indication that items were added.
-      if (state.selectionManager.focusedKey === droppingState.current.focusedKey) {
-        let first = newKeys.keys().next().value;
-        state.selectionManager.setFocusedKey(first);
-
-        if (state.selectionManager.selectionMode === 'none') {
-          setInteractionModality('keyboard');
-        }
-      }
-
-      droppingState.current = null;
+    // If the collection changed after a drop, update the focused key.
+    if (droppingState.current && state.collection !== droppingState.current.collection) {
+      updateFocusAfterDrop();
     }
   });
 
+  let {direction} = useLocale();
   useEffect(() => {
-    let getNextTarget = (target: DropTarget, wrap = true): DropTarget => {
+    let getNextTarget = (target: DropTarget, wrap = true, horizontal = false): DropTarget => {
       if (!target) {
@@ -321,22 +362,34 @@ return {
       let {keyboardDelegate} = localState.props;
-      let nextKey = target.type === 'item'
-        ? keyboardDelegate.getKeyBelow(target.key)
-        : keyboardDelegate.getFirstKey();
-      let dropPosition: DropPosition = 'before';
+      let nextKey: Key;
+      if (target?.type === 'item') {
+        nextKey = horizontal ? keyboardDelegate.getKeyRightOf(target.key) : keyboardDelegate.getKeyBelow(target.key);
+      } else {
+        nextKey = horizontal && direction === 'rtl' ? keyboardDelegate.getLastKey() : keyboardDelegate.getFirstKey();
+      }
+      let dropPositions = horizontal && direction === 'rtl' ? DROP_POSITIONS_RTL : DROP_POSITIONS;
+      let dropPosition: DropPosition = dropPositions[0];
 
       if (target.type === 'item') {
-        let positionIndex = DROP_POSITIONS.indexOf(target.dropPosition);
-        let nextDropPosition = DROP_POSITIONS[positionIndex + 1];
-        if (positionIndex < DROP_POSITIONS.length - 1 && !(nextDropPosition === 'after' && nextKey != null)) {
-          return {
-            type: 'item',
-            key: target.key,
-            dropPosition: nextDropPosition
-          };
-        }
+        // If the the keyboard delegate returned the next key in the collection,
+        // first try the other positions in the current key. Otherwise (e.g. in a grid layout),
+        // jump to the same drop position in the new key.
+        let nextCollectionKey = horizontal && direction === 'rtl' ? localState.state.collection.getKeyBefore(target.key) : localState.state.collection.getKeyAfter(target.key);
+        if (nextKey == null || nextKey === nextCollectionKey) {
+          let positionIndex = dropPositions.indexOf(target.dropPosition);
+          let nextDropPosition = dropPositions[positionIndex + 1];
+          if (positionIndex < dropPositions.length - 1 && !(nextDropPosition === dropPositions[2] && nextKey != null)) {
+            return {
+              type: 'item',
+              key: target.key,
+              dropPosition: nextDropPosition
+            };
+          }
 
-        // If the last drop position was 'after', then 'before' on the next key is equivalent.
-        // Switch to 'on' instead.
-        if (target.dropPosition === 'after') {
-          dropPosition = 'on';
+          // If the last drop position was 'after', then 'before' on the next key is equivalent.
+          // Switch to 'on' instead.
+          if (target.dropPosition === dropPositions[2]) {
+            dropPosition = 'on';
+          }
+        } else {
+          dropPosition = target.dropPosition;
         }
@@ -362,24 +415,36 @@ }
 
-    let getPreviousTarget = (target: DropTarget, wrap = true): DropTarget => {
+    let getPreviousTarget = (target: DropTarget, wrap = true, horizontal = false): DropTarget => {
       let {keyboardDelegate} = localState.props;
-      let nextKey = target?.type === 'item'
-        ? keyboardDelegate.getKeyAbove(target.key)
-        : keyboardDelegate.getLastKey();
-      let dropPosition: DropPosition = !target || target.type === 'root' ? 'after' : 'on';
+      let nextKey: Key;
+      if (target?.type === 'item') {
+        nextKey = horizontal ? keyboardDelegate.getKeyLeftOf(target.key) : keyboardDelegate.getKeyAbove(target.key);
+      } else {
+        nextKey = horizontal && direction === 'rtl' ? keyboardDelegate.getFirstKey() : keyboardDelegate.getLastKey();
+      }
+      let dropPositions = horizontal && direction === 'rtl' ? DROP_POSITIONS_RTL : DROP_POSITIONS;
+      let dropPosition: DropPosition = !target || target.type === 'root' ? dropPositions[2] : 'on';
 
       if (target?.type === 'item') {
-        let positionIndex = DROP_POSITIONS.indexOf(target.dropPosition);
-        let nextDropPosition = DROP_POSITIONS[positionIndex - 1];
-        if (positionIndex > 0 && nextDropPosition !== 'after') {
-          return {
-            type: 'item',
-            key: target.key,
-            dropPosition: nextDropPosition
-          };
-        }
+        // If the the keyboard delegate returned the previous key in the collection,
+        // first try the other positions in the current key. Otherwise (e.g. in a grid layout),
+        // jump to the same drop position in the new key.
+        let prevCollectionKey = horizontal && direction === 'rtl' ? localState.state.collection.getKeyAfter(target.key) : localState.state.collection.getKeyBefore(target.key);
+        if (nextKey == null || nextKey === prevCollectionKey) {
+          let positionIndex = dropPositions.indexOf(target.dropPosition);
+          let nextDropPosition = dropPositions[positionIndex - 1];
+          if (positionIndex > 0 && nextDropPosition !== dropPositions[2]) {
+            return {
+              type: 'item',
+              key: target.key,
+              dropPosition: nextDropPosition
+            };
+          }
 
-        // If the last drop position was 'before', then 'after' on the previous key is equivalent.
-        // Switch to 'on' instead.
-        if (target.dropPosition === 'before') {
-          dropPosition = 'on';
+          // If the last drop position was 'before', then 'after' on the previous key is equivalent.
+          // Switch to 'on' instead.
+          if (target.dropPosition === dropPositions[0]) {
+            dropPosition = 'on';
+          }
+        } else {
+          dropPosition = target.dropPosition;
         }
@@ -441,2 +506,3 @@ }
       element: ref.current,
+      preventFocusOnDrop: true,
       getDropOperation(types, allowedOperations) {
@@ -553,2 +619,16 @@ if (localState.state.target) {
           }
+          case 'ArrowLeft': {
+            if (keyboardDelegate.getKeyLeftOf) {
+              let target = nextValidTarget(localState.state.target, types, drag.allowedDropOperations, (target, wrap) => getPreviousTarget(target, wrap, true));
+              localState.state.setTarget(target);
+            }
+            break;
+          }
+          case 'ArrowRight': {
+            if (keyboardDelegate.getKeyRightOf) {
+              let target = nextValidTarget(localState.state.target, types, drag.allowedDropOperations, (target, wrap) => getNextTarget(target, wrap, true));
+              localState.state.setTarget(target);
+            }
+            break;
+          }
           case 'Home': {
@@ -655,3 +735,3 @@ if (keyboardDelegate.getFirstKey) {
     });
-  }, [localState, ref, onDrop]);
+  }, [localState, ref, onDrop, direction]);
 
@@ -658,0 +738,0 @@ let id = useId();

src/useDroppableItem.ts

@@ -15,5 +15,5 @@ /*
 import {DroppableCollectionState} from '@react-stately/dnd';
-import {DropTarget} from '@react-types/shared';
+import {DropTarget, RefObject} from '@react-types/shared';
 import {getDroppableCollectionRef, getTypes, globalDndState, isInternalDropOperation} from './utils';
-import {HTMLAttributes, RefObject, useEffect} from 'react';
+import {HTMLAttributes, useEffect} from 'react';
 import {useVirtualDrop} from './useVirtualDrop';
@@ -36,3 +36,3 @@
  */
-export function useDroppableItem(options: DroppableItemOptions, state: DroppableCollectionState, ref: RefObject<HTMLElement>): DroppableItemResult {
+export function useDroppableItem(options: DroppableItemOptions, state: DroppableCollectionState, ref: RefObject<HTMLElement | null>): DroppableItemResult {
   let {dropProps} = useVirtualDrop();
@@ -39,0 +39,0 @@ let droppableCollectionRef = getDroppableCollectionRef(state);

src/useVirtualDrop.ts

@@ -32,3 +32,3 @@ /*
 export function useVirtualDrop(): VirtualDropResult {
-  let stringFormatter = useLocalizedStringFormatter(intlMessages);
+  let stringFormatter = useLocalizedStringFormatter(intlMessages, '@react-aria/dnd');
   let modality = useDragModality();
@@ -35,0 +35,0 @@ let dragSession = DragManager.useDragSession();

src/utils.ts

@@ -14,10 +14,9 @@ /*
 import {CUSTOM_DRAG_TYPE, DROP_OPERATION, GENERIC_TYPE, NATIVE_DRAG_TYPES} from './constants';
-import {DirectoryDropItem, DragItem, DropItem, FileDropItem, DragTypes as IDragTypes} from '@react-types/shared';
+import {DirectoryDropItem, DragItem, DropItem, FileDropItem, DragTypes as IDragTypes, Key, RefObject, TextDropItem} from '@react-types/shared';
 import {DroppableCollectionState} from '@react-stately/dnd';
 import {getInteractionModality, useInteractionModality} from '@react-aria/interactions';
-import {Key, RefObject} from 'react';
 
 interface DroppableCollectionMap {
   id: string,
-  ref: RefObject<HTMLElement>
+  ref: RefObject<HTMLElement | null>
 }
@@ -318,10 +317,25 @@
 
+/** Returns whether a drop item contains text data. */
+export function isTextDropItem(dropItem: DropItem): dropItem is TextDropItem {
+  return dropItem.kind === 'text';
+}
+
+/** Returns whether a drop item is a file. */
+export function isFileDropItem(dropItem: DropItem): dropItem is FileDropItem {
+  return dropItem.kind === 'file';
+}
+
+/** Returns whether a drop item is a directory. */
+export function isDirectoryDropItem(dropItem: DropItem): dropItem is DirectoryDropItem {
+  return dropItem.kind === 'directory';
+}
+
 // Global DnD collection state tracker.
 export interface DnDState {
   /** A ref for the  of the drag items in the current drag session if any. */
-  draggingCollectionRef?: RefObject<HTMLElement>,
+  draggingCollectionRef?: RefObject<HTMLElement | null>,
   /** The set of currently dragged keys. */
   draggingKeys: Set<Key>,
   /** A ref for the collection that is targeted for a drop operation, if any. */
-  dropCollectionRef?: RefObject<HTMLElement>
+  dropCollectionRef?: RefObject<HTMLElement | null>
 }
@@ -331,3 +345,3 @@
 
-export function setDraggingCollectionRef(ref: RefObject<HTMLElement>) {
+export function setDraggingCollectionRef(ref: RefObject<HTMLElement | null>) {
   globalDndState.draggingCollectionRef = ref;
@@ -340,3 +354,3 @@ }
 
-export function setDropCollectionRef(ref: RefObject<HTMLElement>) {
+export function setDropCollectionRef(ref: RefObject<HTMLElement | null>) {
   globalDndState.dropCollectionRef = ref;
@@ -355,3 +369,3 @@ }
 // Allows a droppable ref arg in case the global drop collection ref hasn't been set
-export function isInternalDropOperation(ref?: RefObject<HTMLElement>) {
+export function isInternalDropOperation(ref?: RefObject<HTMLElement | null>) {
   let {draggingCollectionRef, dropCollectionRef} = globalDndState;
@@ -358,0 +372,0 @@ return draggingCollectionRef?.current != null && draggingCollectionRef.current === (ref?.current || dropCollectionRef?.current);

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Improved metrics

Total package byte prevSize

1703771

increased by34.43%

Dependency count

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decreased by-7.69%

Number of package files

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increased by1000%

Lines of code

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increased by44.27%

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decreased by-40%

Dependency changes

• + Added@swc/helpers@^0.5.0

• + Added@formatjs/ecma402-abstract@2.3.1(transitive)

• + Added@formatjs/fast-memoize@2.2.5(transitive)

• + Added@formatjs/icu-messageformat-parser@2.9.7(transitive)

• + Added@formatjs/icu-skeleton-parser@1.8.11(transitive)

• + Added@formatjs/intl-localematcher@0.5.9(transitive)

• + Added@internationalized/date@3.6.0(transitive)

• + Added@internationalized/message@3.1.6(transitive)

• + Added@internationalized/number@3.6.0(transitive)

• + Added@internationalized/string@3.2.5(transitive)

• + Added@react-aria/focus@3.19.0(transitive)

• + Added@react-aria/i18n@3.12.4(transitive)

• + Added@react-aria/interactions@3.22.5(transitive)

• + Added@react-aria/live-announcer@3.4.1(transitive)

• + Added@react-aria/overlays@3.24.0(transitive)

• + Added@react-aria/ssr@3.9.7(transitive)

• + Added@react-aria/utils@3.26.0(transitive)

• + Added@react-aria/visually-hidden@3.8.18(transitive)

• + Added@react-stately/collections@3.12.0(transitive)

• + Added@react-stately/dnd@3.5.0(transitive)

• + Added@react-stately/overlays@3.6.12(transitive)

• + Added@react-stately/selection@3.18.0(transitive)

• + Added@react-stately/utils@3.10.5(transitive)

• + Added@react-types/button@3.10.1(transitive)

• + Added@react-types/overlays@3.8.11(transitive)

• + Added@react-types/shared@3.26.0(transitive)

• + Added@swc/helpers@0.5.15(transitive)

• + Addedclsx@2.1.1(transitive)

• + Addeddecimal.js@10.4.3(transitive)

• + Addedintl-messageformat@10.7.10(transitive)

• + Addedreact@19.0.0(transitive)

• + Addedreact-dom@19.0.0(transitive)

• + Addedscheduler@0.25.0(transitive)

• + Addedtslib@2.8.1(transitive)

• - Removed@babel/runtime@^7.6.2

• - Removed@react-aria/visually-hidden@3.0.0-nightly.1875+a13802d8b

• - Removed@babel/runtime@7.26.0(transitive)

• - Removedjs-tokens@4.0.0(transitive)

• - Removedloose-envify@1.4.0(transitive)

• - Removedreact@18.3.1(transitive)

• - Removedreact-dom@18.3.1(transitive)

• - Removedregenerator-runtime@0.14.1(transitive)

• - Removedscheduler@0.23.2(transitive)

• Updated@internationalized/string@^3.0.0-nightly-641446f65-240905

• Updated@react-aria/i18n@^3.0.0-nightly-641446f65-240905

• Updated@react-aria/interactions@^3.0.0-nightly-641446f65-240905

• Updated@react-aria/live-announcer@^3.0.0-nightly-641446f65-240905

• Updated@react-aria/overlays@^3.0.0-nightly-641446f65-240905

• Updated@react-aria/utils@^3.0.0-nightly-641446f65-240905

• Updated@react-stately/dnd@^3.0.0-nightly-641446f65-240905

• Updated@react-types/button@^3.0.0-nightly-641446f65-240905

• Updated@react-types/shared@^3.0.0-nightly-641446f65-240905