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Viewing file:     keyCommandPlainDelete.js (1.5 KB)      -rw-r--r--

/**
 * Copyright (c) Facebook, Inc. and its affiliates.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 *
 * @format
 * 
 * @emails oncall+draft_js
 */
'use strict';

var EditorState = require("./EditorState");

var UnicodeUtils = require("fbjs/lib/UnicodeUtils");

var moveSelectionForward = require("./moveSelectionForward");

var removeTextWithStrategy = require("./removeTextWithStrategy");
/**
 * Remove the selected range. If the cursor is collapsed, remove the following
 * character. This operation is Unicode-aware, so removing a single character
 * will remove a surrogate pair properly as well.
 */


function keyCommandPlainDelete(editorState) {
  var afterRemoval = removeTextWithStrategy(editorState, function (strategyState) {
    var selection = strategyState.getSelection();
    var content = strategyState.getCurrentContent();
    var key = selection.getAnchorKey();
    var offset = selection.getAnchorOffset();
    var charAhead = content.getBlockForKey(key).getText()[offset];
    return moveSelectionForward(strategyState, charAhead ? UnicodeUtils.getUTF16Length(charAhead, 0) : 1);
  }, 'forward');

  if (afterRemoval === editorState.getCurrentContent()) {
    return editorState;
  }

  var selection = editorState.getSelection();
  return EditorState.push(editorState, afterRemoval.set('selectionBefore', selection), selection.isCollapsed() ? 'delete-character' : 'remove-range');
}

module.exports = keyCommandPlainDelete;