@wordpress/block-editor/build/components/inserter/hooks/use-insertion-point.js

Generic block editor.

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = void 0;

var _data = require("@wordpress/data");

var _blocks = require("@wordpress/blocks");

var _i18n = require("@wordpress/i18n");

var _a11y = require("@wordpress/a11y");

var _element = require("@wordpress/element");

var _store = require("../../../store");

/**
 * WordPress dependencies
 */

/**
 * Internal dependencies
 */

/**
 * @typedef WPInserterConfig
 *
 * @property {string=}   rootClientId   If set, insertion will be into the
 *                                      block with this ID.
 * @property {number=}   insertionIndex If set, insertion will be into this
 *                                      explicit position.
 * @property {string=}   clientId       If set, insertion will be after the
 *                                      block with this ID.
 * @property {boolean=}  isAppender     Whether the inserter is an appender
 *                                      or not.
 * @property {Function=} onSelect       Called after insertion.
 */

/**
 * Returns the insertion point state given the inserter config.
 *
 * @param {WPInserterConfig} config Inserter Config.
 * @return {Array} Insertion Point State (rootClientID, onInsertBlocks and onToggle).
 */
function useInsertionPoint({
  rootClientId = '',
  insertionIndex,
  clientId,
  isAppender,
  onSelect,
  shouldFocusBlock = true,
  selectBlockOnInsert = true
}) {
  const {
    getSelectedBlock
  } = (0, _data.useSelect)(_store.store);
  const {
    destinationRootClientId,
    destinationIndex
  } = (0, _data.useSelect)(select => {
    const {
      getSelectedBlockClientId,
      getBlockRootClientId,
      getBlockIndex,
      getBlockOrder
    } = select(_store.store);
    const selectedBlockClientId = getSelectedBlockClientId();
    let _destinationRootClientId = rootClientId;

    let _destinationIndex;

    if (insertionIndex !== undefined) {
      // Insert into a specific index.
      _destinationIndex = insertionIndex;
    } else if (clientId) {
      // Insert after a specific client ID.
      _destinationIndex = getBlockIndex(clientId);
    } else if (!isAppender && selectedBlockClientId) {
      _destinationRootClientId = getBlockRootClientId(selectedBlockClientId);
      _destinationIndex = getBlockIndex(selectedBlockClientId) + 1;
    } else {
      // Insert at the end of the list.
      _destinationIndex = getBlockOrder(_destinationRootClientId).length;
    }

    return {
      destinationRootClientId: _destinationRootClientId,
      destinationIndex: _destinationIndex
    };
  }, [rootClientId, insertionIndex, clientId, isAppender]);
  const {
    replaceBlocks,
    insertBlocks,
    showInsertionPoint,
    hideInsertionPoint
  } = (0, _data.useDispatch)(_store.store);
  const onInsertBlocks = (0, _element.useCallback)((blocks, meta, shouldForceFocusBlock = false) => {
    const selectedBlock = getSelectedBlock();

    if (!isAppender && selectedBlock && (0, _blocks.isUnmodifiedDefaultBlock)(selectedBlock)) {
      replaceBlocks(selectedBlock.clientId, blocks, null, shouldFocusBlock || shouldForceFocusBlock ? 0 : null, meta);
    } else {
      insertBlocks(blocks, destinationIndex, destinationRootClientId, selectBlockOnInsert, shouldFocusBlock || shouldForceFocusBlock ? 0 : null, meta);
    }

    const blockLength = Array.isArray(blocks) ? blocks.length : 1;
    const message = (0, _i18n.sprintf)( // translators: %d: the name of the block that has been added
    (0, _i18n._n)('%d block added.', '%d blocks added.', blockLength), blockLength);
    (0, _a11y.speak)(message);

    if (onSelect) {
      onSelect(blocks);
    }
  }, [isAppender, getSelectedBlock, replaceBlocks, insertBlocks, destinationRootClientId, destinationIndex, onSelect, shouldFocusBlock]);
  const onToggleInsertionPoint = (0, _element.useCallback)(show => {
    if (show) {
      showInsertionPoint(destinationRootClientId, destinationIndex);
    } else {
      hideInsertionPoint();
    }
  }, [showInsertionPoint, hideInsertionPoint, destinationRootClientId, destinationIndex]);
  return [destinationRootClientId, onInsertBlocks, onToggleInsertionPoint];
}

var _default = useInsertionPoint;
exports.default = _default;
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