forked from Gitlink/forgeplus-react
44 lines
1.6 KiB
Plaintext
44 lines
1.6 KiB
Plaintext
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/**
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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 keyCommandBackspaceToStartOfLine
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* @format
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* @flow
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*/
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'use strict';
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var EditorState = require('./EditorState');
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var expandRangeToStartOfLine = require('./expandRangeToStartOfLine');
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var getDraftEditorSelectionWithNodes = require('./getDraftEditorSelectionWithNodes');
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var moveSelectionBackward = require('./moveSelectionBackward');
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var removeTextWithStrategy = require('./removeTextWithStrategy');
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function keyCommandBackspaceToStartOfLine(editorState: EditorState): EditorState {
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var afterRemoval = removeTextWithStrategy(editorState, strategyState => {
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const selection = strategyState.getSelection();
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if (selection.isCollapsed() && selection.getAnchorOffset() === 0) {
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return moveSelectionBackward(strategyState, 1);
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}
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var domSelection = global.getSelection();
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var range = domSelection.getRangeAt(0);
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range = expandRangeToStartOfLine(range);
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return getDraftEditorSelectionWithNodes(strategyState, null, range.endContainer, range.endOffset, range.startContainer, range.startOffset).selectionState;
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}, 'backward');
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if (afterRemoval === editorState.getCurrentContent()) {
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return editorState;
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}
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return EditorState.push(editorState, afterRemoval, 'remove-range');
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}
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module.exports = keyCommandBackspaceToStartOfLine;
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