37 lines
1.3 KiB
Plaintext
37 lines
1.3 KiB
Plaintext
/**
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* Copyright (c) 2013-present, Facebook, Inc.
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* All rights reserved.
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*
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* This source code is licensed under the BSD-style license found in the
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* LICENSE file in the root directory of this source tree. An additional grant
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* of patent rights can be found in the PATENTS file in the same directory.
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*
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* @providesModule modifyBlockForContentState
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* @format
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* @flow
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*/
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'use strict';
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import type { BlockNodeRecord } from './BlockNodeRecord';
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import type ContentState from './ContentState';
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import type SelectionState from './SelectionState';
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const Immutable = require('immutable');
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const { Map } = Immutable;
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function modifyBlockForContentState(contentState: ContentState, selectionState: SelectionState, operation: (block: BlockNodeRecord) => BlockNodeRecord): ContentState {
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var startKey = selectionState.getStartKey();
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var endKey = selectionState.getEndKey();
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var blockMap = contentState.getBlockMap();
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var newBlocks = blockMap.toSeq().skipUntil((_, k) => k === startKey).takeUntil((_, k) => k === endKey).concat(Map([[endKey, blockMap.get(endKey)]])).map(operation);
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return contentState.merge({
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blockMap: blockMap.merge(newBlocks),
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selectionBefore: selectionState,
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selectionAfter: selectionState
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});
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}
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module.exports = modifyBlockForContentState; |