import { __require as requireEditorState } from './EditorState.js';
import { __require as requireExpandRangeToStartOfLine } from './expandRangeToStartOfLine.js';
import { __require as requireGetDraftEditorSelectionWithNodes } from './getDraftEditorSelectionWithNodes.js';
import { __require as requireMoveSelectionBackward } from './moveSelectionBackward.js';
import { __require as requireRemoveTextWithStrategy } from './removeTextWithStrategy.js';

/**
 * 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
 */

var keyCommandBackspaceToStartOfLine_1;
var hasRequiredKeyCommandBackspaceToStartOfLine;

function requireKeyCommandBackspaceToStartOfLine () {
	if (hasRequiredKeyCommandBackspaceToStartOfLine) return keyCommandBackspaceToStartOfLine_1;
	hasRequiredKeyCommandBackspaceToStartOfLine = 1;

	var EditorState = requireEditorState();

	var expandRangeToStartOfLine = requireExpandRangeToStartOfLine();

	var getDraftEditorSelectionWithNodes = requireGetDraftEditorSelectionWithNodes();

	var moveSelectionBackward = requireMoveSelectionBackward();

	var removeTextWithStrategy = requireRemoveTextWithStrategy();

	function keyCommandBackspaceToStartOfLine(editorState, e) {
	  var afterRemoval = removeTextWithStrategy(editorState, function (strategyState) {
	    var selection = strategyState.getSelection();

	    if (selection.isCollapsed() && selection.getAnchorOffset() === 0) {
	      return moveSelectionBackward(strategyState, 1);
	    }

	    var ownerDocument = e.currentTarget.ownerDocument;
	    var domSelection = ownerDocument.defaultView.getSelection(); // getRangeAt can technically throw if there's no selection, but we know
	    // there is one here because text editor has focus (the cursor is a
	    // selection of length 0). Therefore, we don't need to wrap this in a
	    // try-catch block.

	    var range = domSelection.getRangeAt(0);
	    range = expandRangeToStartOfLine(range);
	    return getDraftEditorSelectionWithNodes(strategyState, null, range.endContainer, range.endOffset, range.startContainer, range.startOffset).selectionState;
	  }, 'backward');

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

	  return EditorState.push(editorState, afterRemoval, 'remove-range');
	}

	keyCommandBackspaceToStartOfLine_1 = keyCommandBackspaceToStartOfLine;
	return keyCommandBackspaceToStartOfLine_1;
}

export { requireKeyCommandBackspaceToStartOfLine as __require };
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