react-aria/dist/private/grid/GridKeyboardDelegate.mjs.map

Spectrum UI components in React

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* Copyright 2020 Adobe. All rights reserved.\n * This file is licensed to you under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License. You may obtain a copy\n * of the License at http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software distributed under\n * the License is distributed on an \"AS IS\" BASIS, WITHOUT WARRANTIES OR REPRESENTATIONS\n * OF ANY KIND, either express or implied. See the License for the specific language\n * governing permissions and limitations under the License.\n */\n\nimport {\n  Direction,\n  DisabledBehavior,\n  Key,\n  KeyboardDelegate,\n  LayoutDelegate,\n  Node,\n  Rect,\n  RefObject,\n  Size\n} from '@react-types/shared';\nimport {DOMLayoutDelegate} from '../selection/DOMLayoutDelegate';\nimport {\n  getChildNodes,\n  getFirstItem,\n  getLastItem,\n  getNthItem\n} from 'react-stately/private/collections/getChildNodes';\nimport {\n  IGridCollection as GridCollection,\n  GridNode\n} from 'react-stately/private/grid/GridCollection';\n\nexport interface GridKeyboardDelegateOptions<C> {\n  collection: C;\n  disabledKeys: Set<Key>;\n  disabledBehavior?: DisabledBehavior;\n  ref?: RefObject<HTMLElement | null>;\n  direction: Direction;\n  collator?: Intl.Collator;\n  layoutDelegate?: LayoutDelegate;\n  /** @deprecated - Use layoutDelegate instead. */\n  layout?: DeprecatedLayout;\n  focusMode?: 'row' | 'cell';\n}\n\nexport class GridKeyboardDelegate<T, C extends GridCollection<T>> implements KeyboardDelegate {\n  collection: C;\n  protected disabledKeys: Set<Key>;\n  protected disabledBehavior: DisabledBehavior;\n  protected direction: Direction;\n  protected collator: Intl.Collator | undefined;\n  protected layoutDelegate: LayoutDelegate;\n  protected focusMode: 'row' | 'cell';\n\n  constructor(options: GridKeyboardDelegateOptions<C>) {\n    this.collection = options.collection;\n    this.disabledKeys = options.disabledKeys;\n    this.disabledBehavior = options.disabledBehavior || 'all';\n    this.direction = options.direction;\n    this.collator = options.collator;\n    if (!options.layout && !options.ref) {\n      throw new Error('Either a layout or a ref must be specified.');\n    }\n    this.layoutDelegate =\n      options.layoutDelegate ||\n      (options.layout\n        ? new DeprecatedLayoutDelegate(options.layout)\n        : new DOMLayoutDelegate(options.ref!));\n    this.focusMode = options.focusMode ?? 'row';\n  }\n\n  protected isCell(node: Node<T>): boolean {\n    return node.type === 'cell';\n  }\n\n  protected isRow(node: Node<T>): boolean {\n    return node.type === 'row' || node.type === 'item';\n  }\n\n  private isDisabled(item: Node<unknown>) {\n    return (\n      this.disabledBehavior === 'all' &&\n      (item.props?.isDisabled || this.disabledKeys.has(item.key)) &&\n      item.props?.disabledBehavior !== 'selection'\n    );\n  }\n\n  protected findPreviousKey(\n    fromKey?: Key,\n    pred?: (item: Node<T>) => boolean,\n    includeDisabled = false\n  ): Key | null {\n    let key =\n      fromKey != null ? this.collection.getKeyBefore(fromKey) : this.collection.getLastKey();\n\n    while (key != null) {\n      let item = this.collection.getItem(key);\n      if (!item) {\n        return null;\n      }\n      if ((includeDisabled || !this.isDisabled(item)) && (!pred || pred(item))) {\n        return key;\n      }\n\n      key = this.collection.getKeyBefore(key);\n    }\n    return null;\n  }\n\n  protected findNextKey(\n    fromKey?: Key,\n    pred?: (item: Node<T>) => boolean,\n    includeDisabled = false\n  ): Key | null {\n    let key =\n      fromKey != null ? this.collection.getKeyAfter(fromKey) : this.collection.getFirstKey();\n\n    while (key != null) {\n      let item = this.collection.getItem(key);\n      if (!item) {\n        return null;\n      }\n      if ((includeDisabled || !this.isDisabled(item)) && (!pred || pred(item))) {\n        return key;\n      }\n\n      key = this.collection.getKeyAfter(key);\n      if (key == null) {\n        return null;\n      }\n    }\n    return null;\n  }\n\n  protected getKeyForItemInRowByIndex(key: Key, index: number = 0): Key | null {\n    if (index < 0) {\n      return null;\n    }\n\n    let item = this.collection.getItem(key);\n    if (!item) {\n      return null;\n    }\n\n    let i = 0;\n    for (let child of getChildNodes(item, this.collection) as Iterable<GridNode<T>>) {\n      if (child.colSpan && child.colSpan + i > index) {\n        return child.key ?? null;\n      }\n\n      if (child.colSpan) {\n        i = i + child.colSpan - 1;\n      }\n\n      if (i === index) {\n        return child.key ?? null;\n      }\n\n      i++;\n    }\n    return null;\n  }\n\n  getKeyBelow(fromKey: Key, options?: {includeDisabled?: boolean}): Key | null {\n    let key: Key | null = fromKey;\n    let startItem = this.collection.getItem(key);\n    if (!startItem) {\n      return null;\n    }\n\n    // If focus was on a cell, start searching from the parent row\n    if (this.isCell(startItem)) {\n      key = startItem.parentKey ?? null;\n    }\n    if (key == null) {\n      return null;\n    }\n\n    // Find the next item\n    key = this.findNextKey(key, item => item.type === 'item', options?.includeDisabled);\n    if (key != null) {\n      // If focus was on a cell, focus the cell with the same index in the next row.\n      if (this.isCell(startItem)) {\n        let startIndex = startItem.colIndex ? startItem.colIndex : startItem.index;\n        return this.getKeyForItemInRowByIndex(key, startIndex);\n      }\n\n      // Otherwise, focus the next row\n      if (this.focusMode === 'row') {\n        return key;\n      }\n    }\n    return null;\n  }\n\n  getKeyAbove(fromKey: Key, options?: {includeDisabled?: boolean}): Key | null {\n    let key: Key | null = fromKey;\n    let startItem = this.collection.getItem(key);\n    if (!startItem) {\n      return null;\n    }\n\n    // If focus is on a cell, start searching from the parent row\n    if (this.isCell(startItem)) {\n      key = startItem.parentKey ?? null;\n    }\n    if (key == null) {\n      return null;\n    }\n\n    // Find the previous item\n    key = this.findPreviousKey(key, item => item.type === 'item', options?.includeDisabled);\n    if (key != null) {\n      // If focus was on a cell, focus the cell with the same index in the previous row.\n      if (this.isCell(startItem)) {\n        let startIndex = startItem.colIndex ? startItem.colIndex : startItem.index;\n        return this.getKeyForItemInRowByIndex(key, startIndex);\n      }\n\n      // Otherwise, focus the previous row\n      if (this.focusMode === 'row') {\n        return key;\n      }\n    }\n    return null;\n  }\n\n  getKeyRightOf(key: Key): Key | null {\n    let item = this.collection.getItem(key);\n    if (!item) {\n      return null;\n    }\n\n    // If focus is on a row, focus the first child cell.\n    if (this.isRow(item)) {\n      let children = getChildNodes(item, this.collection);\n      return (\n        (this.direction === 'rtl' ? getLastItem(children)?.key : getFirstItem(children)?.key) ??\n        null\n      );\n    }\n\n    // If focus is on a cell, focus the next cell if any,\n    // otherwise focus the parent row.\n    if (this.isCell(item) && item.parentKey != null) {\n      let parent = this.collection.getItem(item.parentKey);\n      if (!parent) {\n        return null;\n      }\n      let children = getChildNodes(parent, this.collection);\n      let next =\n        (this.direction === 'rtl'\n          ? getNthItem(children, item.index - 1)\n          : getNthItem(children, item.index + 1)) ?? null;\n\n      if (next) {\n        return next.key ?? null;\n      }\n\n      // focus row only if focusMode is set to row\n      if (this.focusMode === 'row') {\n        return item.parentKey ?? null;\n      }\n\n      return (this.direction === 'rtl' ? this.getFirstKey(key) : this.getLastKey(key)) ?? null;\n    }\n    return null;\n  }\n\n  getKeyLeftOf(key: Key): Key | null {\n    let item = this.collection.getItem(key);\n    if (!item) {\n      return null;\n    }\n\n    // If focus is on a row, focus the last child cell.\n    if (this.isRow(item)) {\n      let children = getChildNodes(item, this.collection);\n      return (\n        (this.direction === 'rtl' ? getFirstItem(children)?.key : getLastItem(children)?.key) ??\n        null\n      );\n    }\n\n    // If focus is on a cell, focus the previous cell if any,\n    // otherwise focus the parent row.\n    if (this.isCell(item) && item.parentKey != null) {\n      let parent = this.collection.getItem(item.parentKey);\n      if (!parent) {\n        return null;\n      }\n      let children = getChildNodes(parent, this.collection);\n      let prev =\n        (this.direction === 'rtl'\n          ? getNthItem(children, item.index + 1)\n          : getNthItem(children, item.index - 1)) ?? null;\n\n      if (prev) {\n        return prev.key ?? null;\n      }\n\n      // focus row only if focusMode is set to row\n      if (this.focusMode === 'row') {\n        return item.parentKey ?? null;\n      }\n\n      return (this.direction === 'rtl' ? this.getLastKey(key) : this.getFirstKey(key)) ?? null;\n    }\n    return null;\n  }\n\n  getFirstKey(fromKey?: Key, global?: boolean): Key | null {\n    let key: Key | null = fromKey ?? null;\n    let item: Node<T> | undefined | null;\n    if (key != null) {\n      item = this.collection.getItem(key);\n      if (!item) {\n        return null;\n      }\n\n      // If global flag is not set, and a cell is currently focused,\n      // move focus to the first cell in the parent row.\n      if (this.isCell(item) && !global && item.parentKey != null) {\n        let parent = this.collection.getItem(item.parentKey);\n        if (!parent) {\n          return null;\n        }\n        return getFirstItem(getChildNodes(parent, this.collection))?.key ?? null;\n      }\n    }\n\n    // Find the first row\n    key = this.findNextKey(undefined, item => item.type === 'item');\n\n    // If global flag is set (or if focus mode is cell), focus the first cell in the first row.\n    if (key != null && ((item && this.isCell(item) && global) || this.focusMode === 'cell')) {\n      let item = this.collection.getItem(key);\n      if (!item) {\n        return null;\n      }\n      key = getFirstItem(getChildNodes(item, this.collection))?.key ?? null;\n    }\n\n    // Otherwise, focus the row itself.\n    return key;\n  }\n\n  getLastKey(fromKey?: Key, global?: boolean): Key | null {\n    let key: Key | null = fromKey ?? null;\n    let item: Node<T> | undefined | null;\n    if (key != null) {\n      item = this.collection.getItem(key);\n      if (!item) {\n        return null;\n      }\n\n      // If global flag is not set, and a cell is currently focused,\n      // move focus to the last cell in the parent row.\n      if (this.isCell(item) && !global && item.parentKey != null) {\n        let parent = this.collection.getItem(item.parentKey);\n        if (!parent) {\n          return null;\n        }\n        let children = getChildNodes(parent, this.collection);\n        return getLastItem(children)?.key ?? null;\n      }\n    }\n\n    // Find the last row\n    key = this.findPreviousKey(undefined, item => item.type === 'item');\n\n    // If global flag is set (or if focus mode is cell), focus the last cell in the last row.\n    if (key != null && ((item && this.isCell(item) && global) || this.focusMode === 'cell')) {\n      let item = this.collection.getItem(key);\n      if (!item) {\n        return null;\n      }\n      let children = getChildNodes(item, this.collection);\n      key = getLastItem(children)?.key ?? null;\n    }\n\n    // Otherwise, focus the row itself.\n    return key;\n  }\n\n  getKeyPageAbove(fromKey: Key): Key | null {\n    let key: Key | null = fromKey;\n    let itemRect = this.layoutDelegate.getItemRect(key);\n    if (!itemRect) {\n      return null;\n    }\n\n    let pageY = Math.max(\n      0,\n      itemRect.y + itemRect.height - this.layoutDelegate.getVisibleRect().height\n    );\n\n    while (itemRect && itemRect.y > pageY && key != null) {\n      key = this.getKeyAbove(key) ?? null;\n      if (key == null) {\n        break;\n      }\n      itemRect = this.layoutDelegate.getItemRect(key);\n    }\n\n    return key;\n  }\n\n  getKeyPageBelow(fromKey: Key): Key | null {\n    let key: Key | null = fromKey;\n    let itemRect = this.layoutDelegate.getItemRect(key);\n\n    if (!itemRect) {\n      return null;\n    }\n\n    let pageHeight = this.layoutDelegate.getVisibleRect().height;\n    let pageY = Math.min(this.layoutDelegate.getContentSize().height, itemRect.y + pageHeight);\n\n    while (itemRect && itemRect.y + itemRect.height < pageY) {\n      let nextKey = this.getKeyBelow(key);\n      // If nextKey is undefined, we've reached the last row already\n      if (nextKey == null) {\n        break;\n      }\n\n      itemRect = this.layoutDelegate.getItemRect(nextKey);\n      key = nextKey;\n    }\n\n    return key;\n  }\n\n  getKeyForSearch(search: string, fromKey?: Key): Key | null {\n    let key: Key | null = fromKey ?? null;\n    if (!this.collator) {\n      return null;\n    }\n\n    let collection = this.collection;\n    key = fromKey ?? this.getFirstKey();\n    if (key == null) {\n      return null;\n    }\n\n    // If the starting key is a cell, search from its parent row.\n    let startItem = collection.getItem(key);\n    if (!startItem) {\n      return null;\n    }\n    if (startItem.type === 'cell') {\n      key = startItem.parentKey ?? null;\n    }\n\n    let hasWrapped = false;\n    while (key != null) {\n      let item = collection.getItem(key);\n      if (!item) {\n        return null;\n      }\n\n      // check row text value for match\n      if (item.textValue) {\n        let substring = item.textValue.slice(0, search.length);\n        if (this.collator.compare(substring, search) === 0) {\n          if (this.isRow(item) && this.focusMode === 'cell') {\n            return getFirstItem(getChildNodes(item, this.collection))?.key ?? null;\n          }\n\n          return item.key;\n        }\n      }\n\n      key = this.findNextKey(key, item => item.type === 'item');\n\n      // Wrap around when reaching the end of the collection\n      if (key == null && !hasWrapped) {\n        key = this.getFirstKey();\n        hasWrapped = true;\n      }\n    }\n\n    return null;\n  }\n}\n\n/* Backward compatibility for old Virtualizer Layout interface. */\ninterface DeprecatedLayout {\n  getLayoutInfo(key: Key): DeprecatedLayoutInfo;\n  getContentSize(): Size;\n  virtualizer: DeprecatedVirtualizer;\n}\n\ninterface DeprecatedLayoutInfo {\n  rect: Rect;\n}\n\ninterface DeprecatedVirtualizer {\n  visibleRect: Rect;\n}\n\nclass DeprecatedLayoutDelegate implements LayoutDelegate {\n  layout: DeprecatedLayout;\n\n  constructor(layout: DeprecatedLayout) {\n    this.layout = layout;\n  }\n\n  getContentSize(): Size {\n    return this.layout.getContentSize();\n  }\n\n  getItemRect(key: Key): Rect | null {\n    return this.layout.getLayoutInfo(key)?.rect || null;\n  }\n\n  getVisibleRect(): Rect {\n    return this.layout.virtualizer.visibleRect;\n  }\n}\n"],"names":[],"version":3,"file":"GridKeyboardDelegate.mjs.map"}