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Viewing file:     keyCommandUndo.js (1.44 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");

function keyCommandUndo(e, editorState, updateFn) {
  var undoneState = EditorState.undo(editorState); // If the last change to occur was a spellcheck change, allow the undo
  // event to fall through to the browser. This allows the browser to record
  // the unwanted change, which should soon lead it to learn not to suggest
  // the correction again.

  if (editorState.getLastChangeType() === 'spellcheck-change') {
    var nativelyRenderedContent = undoneState.getCurrentContent();
    updateFn(EditorState.set(undoneState, {
      nativelyRenderedContent: nativelyRenderedContent
    }));
    return;
  } // Otheriwse, manage the undo behavior manually.


  e.preventDefault();

  if (!editorState.getNativelyRenderedContent()) {
    updateFn(undoneState);
    return;
  } // Trigger a re-render with the current content state to ensure that the
  // component tree has up-to-date props for comparison.


  updateFn(EditorState.set(editorState, {
    nativelyRenderedContent: null
  })); // Wait to ensure that the re-render has occurred before performing
  // the undo action.

  setTimeout(function () {
    updateFn(undoneState);
  }, 0);
}

module.exports = keyCommandUndo;